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windows-server-2003/inetsrv/iis/svcs/cmp/asp/template.cpp

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//depot/private/jasbr/inetsrv/iis/svcs/cmp/asp/template.cpp#19 - edit change 3548 (text)
/*==============================================================================
Microsoft Denali
Microsoft Confidential.
Copyright 1996 Microsoft Corporation. All Rights Reserved.
File: template.cpp
Maintained by: DaveK
Component: source file for Denali Compiled Template object
==============================================================================*/
#include "denpre.h"
#pragma hdrstop
const int SNIPPET_SIZE = 20; // # of characters in the code snippets
#pragma warning( disable : 4509 ) // suppress SEH/destructor warnings
#pragma warning( disable : 4355 ) // ignore: "'this' used in base member init
#include "debugger.h"
#include "dbgutil.h"
#include "tlbcache.h"
#include "ie449.h"
#include "memchk.h"
#include "vecimpl.h" // Include after memchk to insure that vector uses our mem manager.
#include "Accctrl.h"
#include "aclapi.h"
// Init class statics
CTemplate::CTokenList *CTemplate::gm_pTokenList = NULL;
PTRACE_LOG CTemplate::gm_pTraceLog = NULL;
HANDLE CTemplate::sm_hSmallHeap = NULL;
HANDLE CTemplate::sm_hLargeHeap = NULL;
extern BOOL g_fLazyContentPropDisabled;
extern DWORD g_dwFileMonitoringTimeoutSecs;
// Max # of opener tokens to look for
#define TOKEN_OPENERS_MAX 8
/*===================================================================
Private non-class support functions
===================================================================*/
static void ByteRangeFromPb(BYTE* pbSource, CByteRange& brTarget);
static BOOLB FByteRangesAreEqual(CByteRange& br1, CByteRange& br2);
static unsigned CharAdvDBCS(WORD wCodePage, char *pchStart, char *pchEnd, unsigned cCharAdv, char **ppchEnd, BOOL fForceDBCS = FALSE);
static void LineFromByteRangeAdv(CByteRange& br, CByteRange& brLine);
static void LTrimWhiteSpace(CByteRange& br);
static void RTrimWhiteSpace(CByteRange& br);
static CByteRange BrNewLine(CByteRange br);
static BOOLB FWhiteSpace(char ch, BOOLB fSpaceIsWhiteSpace = TRUE);
static BOOLB FWhiteSpaceEx(WCHAR wch, BOOLB fSpaceIsWhiteSpace = TRUE);
static BOOLB FByteRangeIsWhiteSpace(CByteRange br);
static BOOLB FTagName(BYTE* pb, UINT cb);
static void ByteAlignOffset(UINT* pcbOffset, UINT cbAlignment);
static void GetSzFromPatternInserts(char* pszPattern, UINT cInserts, char** ppszInserts, char* szReturned);
static UINT CchPathFromFilespec(LPCTSTR szFile);
static void GetPathFromParentAndFilespec(LPCTSTR szParentPath, LPCTSTR szFileSpec, LPTSTR* pszPath);
static void HandleAccessFailure(CHitObj* pHitObj, TCHAR* szFile);
static void SendToLog(DWORD dwMask, CHAR *szFileName, CHAR *szLineNum, CHAR *szShortDes, CHAR *szLongDes, CHAR *szEngine, CHitObj *pHitObj);
static HRESULT GetProgLangId(CByteRange& brEngine, PROGLANG_ID* pProgLangId);
inline
void __cdecl DebugPrintf(LPCSTR fmt, ...)
{
#if DBG
char msg[512];
va_list marker;
va_start(marker, fmt);
vsprintf(msg, fmt, marker);
va_end(marker);
OutputDebugStringA(msg);
#endif
}
/* ============================================================================
ByteRangeFromPb
Gets a byte range from a contiguous block of memory
Returns:
Nothing.
Side effects:
None.
*/
void
ByteRangeFromPb
(
BYTE* pbSource,
CByteRange& brTarget
)
{
Assert(pbSource != NULL);
brTarget.m_cb = *(ULONG*)pbSource;
brTarget.m_pb = pbSource + sizeof(ULONG);
}
/* ============================================================================
FByteRangesAreEqual
Compares two byte ranges
Returns:
BOOLB. True if byte ranges are equal, else false.
Side effects:
None.
*/
BOOLB
FByteRangesAreEqual
(
CByteRange& br1,
CByteRange& br2
)
{
if(br1.m_cb != br2.m_cb)
return FALSE;
return (!_strnicmp((LPCSTR)br1.m_pb, (LPCSTR)br2.m_pb, br1.m_cb));
}
/* ============================================================================
CharAdvDBCS
Advance "cchCharAdv" characters in a buffer
SBCS: Degenerates to simple pointer arithmatic
Arguments:
wCodePage - code page
pchStart - pointer to beginning of segment
pchEnd - pointer to just past end of segment
cCharAdv - # of characters to advance
ppchEnd - [output], contains pointer "cCharAdv" chars past pchStart
fForceDBCS - if TRUE, always use double byte algorithm.
(for verifying correct behavior of func in debug mode)
Returns:
(int) # of characters that we actually advanced
Notes:
By passing INFINITE for "cCharAdv", you can use this function to count characters
in a block
Side effects:
None.
*/
unsigned
CharAdvDBCS
(
WORD wCodePage,
char *pchStart,
char *pchEnd,
unsigned cCharAdv,
char **ppchEnd,
BOOL fForceDBCS
)
{
CPINFO CpInfo;
GetCPInfo(wCodePage, &CpInfo);
if (!fForceDBCS && CpInfo.MaxCharSize == 1)
{
char *pchT = pchStart + min(cCharAdv, unsigned(pchEnd - pchStart));
if (ppchEnd)
*ppchEnd = pchT;
#if DBG
// Verify DBCS algorithm (not often tested otherwise)
char *pchTest;
unsigned cchTest = CharAdvDBCS(wCodePage, pchStart, pchEnd, cCharAdv, &pchTest, TRUE);
Assert (cchTest == unsigned(pchT - pchStart) && pchTest == pchT);
#endif
return DIFF(pchT - pchStart);
}
else
{
int cch = 0;
char *pchNext = pchStart;
// Count DBCS characters. We have to stop before pchEnd because
// pchEnd may point past file map and CharNextExA AVs when advancing
// past allocated memory
while (cCharAdv > 0 && pchNext < pchEnd-2)
{
pchNext = *pchNext? AspCharNextA(wCodePage, pchNext) : pchNext + 1;
--cCharAdv;
++cch;
}
// We could stop on the last or the before last character
// depending on the DBCS char sequence
if (cCharAdv > 0 && pchNext == pchEnd-1)
{
// Only one byte - has to be one single byte character
++pchNext;
++cch;
}
else if (cCharAdv > 0 && pchNext == pchEnd-2)
{
// 2 bytes left - either 1 2-byte char or 2 1-byte chars
if (IsDBCSLeadByteEx(wCodePage, *pchNext))
{
++cch;
pchNext += 2;
}
else
{
// Two characters left. If cCharAdv > 1, this means that user wants to
// advance at least two more chars. Otherwise, cCharAdv == 1, and
// we advance one char
//
if (cCharAdv > 1)
{
cch += 2;
pchNext += 2;
}
else
{
Assert (cCharAdv == 1);
++cch;
++pchNext;
}
}
}
if (ppchEnd)
*ppchEnd = pchNext;
return cch;
}
}
/* ============================================================================
LineFromByteRangeAdv
Gets the first line in a byte range.
Returns:
Nothing
Side effects:
Advances source byte range to just beyond its first non-white-space line,
if one is found.
*/
void
LineFromByteRangeAdv
(
CByteRange& brSource,
CByteRange& brLine
)
{
CByteRange brTemp;
if(brSource.IsNull())
{
brLine.Nullify();
return;
}
brLine.m_pb = brSource.m_pb;
brTemp = BrNewLine(brSource);
if(brTemp.IsNull())
{
// We found no newline in a non-empty byte range:
// set line range to entire source byte range and empty source byte range
brLine.m_cb = brSource.m_cb;
brSource.Nullify();
}
else
{
// We found a newline in a non-empty byte range:
// set line range to portion of source byte range before new line;
// set source range to portion of source range after new line
brLine.m_cb = DIFF(brTemp.m_pb - brSource.m_pb);
brSource.m_pb = brTemp.m_pb + brTemp.m_cb;
brSource.m_cb -= (brLine.m_cb + brTemp.m_cb);
}
}
/* ============================================================================
LTrimWhiteSpace
Left-trim white space from byte-range
Returns:
Nothing
Side effects:
Advances byte range to just beyond its first non-white-space character.
*/
void
LTrimWhiteSpace
(
CByteRange& br
)
{
if(br.IsNull())
return;
while(FWhiteSpace(*br.m_pb))
{
br.m_pb++;
if(--br.m_cb == 0)
return;
}
}
/* ============================================================================
RTrimWhiteSpace
Right-trim white space from byte-range
*/
void
RTrimWhiteSpace(CByteRange& br)
{
if(br.IsNull())
return;
while(FWhiteSpace(*(br.m_pb + br.m_cb - 1)))
{
if(--br.m_cb == 0)
return;
}
}
/* ============================================================================
BrNewLine
Returns ptr to the first newline in a byte range
NOTE does not change byte range (since it is passed by value)
*/
CByteRange
BrNewLine(CByteRange br)
{
while(!br.IsNull())
{
if(*br.m_pb == '\r')
return CByteRange(br.m_pb, (br.m_cb > 1 && br.m_pb[1] == '\n')? 2 : 1);
else if (*br.m_pb == '\n')
return CByteRange(br.m_pb, 1);
++br.m_pb;
--br.m_cb;
}
return CByteRange();
}
/* ============================================================================
FWhiteSpace
Returns:
TRUE if ch is a white-space character, else returns FALSE
Certain character(s) (e.g. space) may be treated as
non-white-space; to do this, caller passes FALSE for
fSpaceIsWhiteSpace flag.
*/
BOOLB
FWhiteSpace(char ch, BOOLB fSpaceIsWhiteSpace)
{
switch (ch)
{
case ' ':
return fSpaceIsWhiteSpace;
case '\0':
return TRUE;
case '\a':
return TRUE;
case '\b':
return TRUE;
case '\f':
return TRUE;
case '\n':
return TRUE;
case '\r':
return TRUE;
case '\t':
return TRUE;
case '\v':
return TRUE;
default:
return FALSE;
}
}
/* ============================================================================
FWhiteSpaceEx
Returns:
TRUE if ch is a white-space character, else returns FALSE
Certain character(s) (e.g. space) may be treated as
non-white-space; to do this, caller passes FALSE for
fSpaceIsWhiteSpace flag.
*/
BOOLB
FWhiteSpaceEx(WCHAR wch, BOOLB fSpaceIsWhiteSpace)
{
switch (wch)
{
case L' ':
return fSpaceIsWhiteSpace;
case L'\0':
return TRUE;
case L'\a':
return TRUE;
case L'\b':
return TRUE;
case L'\f':
return TRUE;
case L'\n':
return TRUE;
case L'\r':
return TRUE;
case L'\t':
return TRUE;
case L'\v':
return TRUE;
default:
return FALSE;
}
}
/* ============================================================================
FByteRangeIsWhiteSpace
Is the entire input byte range white space?
NOTE input byte range is byval; caller's copy is not changed
*/
BOOLB
FByteRangeIsWhiteSpace(CByteRange br)
{
while(!br.IsNull())
{
if(!FWhiteSpace(*(br.m_pb)))
return FALSE;
br.Advance(1);
}
return TRUE;
}
/* ============================================================================
FTagName
Does pb point to a valid HTML tag name?
(i.e., is *pb a valid HTML tag name and not a substring?)
Returns
TRUE or FALSE
Side effects
None
*/
BOOLB
FTagName(BYTE* pb, UINT cb)
{
if((pb == NULL) || (cb == 0))
return FALSE;
// a valid HTML tag name must be preceded by white space ...
if( FWhiteSpace(*(pb - 1)) || *(pb - 1) == '@' )
{
// ... and followed either by white space or the tag separator
if(FWhiteSpace(*(pb + cb)))
return TRUE;
else if(*(pb + cb) == CH_ATTRIBUTE_SEPARATOR)
return TRUE;
}
return FALSE;
}
/*===================================================================
ByteAlignOffset
Byte-aligns an offset value, based on size of source data
*/
void
ByteAlignOffset
(
UINT* pcbOffset, // ptr to offset value
UINT cbAlignment // Alignment boundary
)
{
// comment the below code out so that it works for 64 bit...
// only byte-align for 2-, or 4-byte data
// since our base pointer in only aligned to a 4 byte boundary
//if(cbAlignment == 2 || cbAlignment == 4)
//{
// if current offset does not fall on a byte-aligned location for current data type,
// advance offset to next byte-aligned location
Assert(cbAlignment > 0);
--cbAlignment;
if (*pcbOffset & cbAlignment)
*pcbOffset = (*pcbOffset + cbAlignment + 1) & ~cbAlignment;
}
/* ============================================================================
GetSzFromPatternInserts
Returns a 'resolved' version of a pattern string, i.e. a new string in which
| characters have been replaced by caller-specified insert strings.
NOTE this function allocates, but caller must free
Returns:
Nothing
Side effects:
allocates memory
*/
void
GetSzFromPatternInserts
(
char* pszPattern, // 'pattern' string
UINT cInserts, // count of insert strings
char** ppszInserts, // array of ptrs to insert strings
char* szReturned // returned string MUST be allocated by caller
)
{
UINT cchRet = strlen(pszPattern); // length of return string
char* pchStartCopy = pszPattern; // ptr to start of copy range in pattern
char* pchEndCopy = pszPattern; // ptr to end of copy range in pattern
UINT cActualInserts = 0; // count of actual insert strings
// init return string to empty so we can concatenate onto it
szReturned[0] = NULL;
// zero out length of return string - we now use it to count actual length as we build return string
cchRet = 0;
while(TRUE)
{
// advance end-of-copy ptr through pattern looking for insertion points or end of string
while ((*pchEndCopy != NULL) && (IsDBCSLeadByte(*pchEndCopy) || (*pchEndCopy != '|')))
pchEndCopy = CharNextA(pchEndCopy);
// cat from start-of-copy to end-of-copy onto return string
strncat(szReturned, pchStartCopy, DIFF(pchEndCopy - pchStartCopy));
// update return string length
cchRet += DIFF(pchEndCopy - pchStartCopy);
// if we are at end of pattern, exit
if(*pchEndCopy == NULL)
goto Exit;
if(cActualInserts < cInserts)
{
// if inserts remain, cat the next one onto return string
strcat(szReturned, ppszInserts[cActualInserts]);
// update return string length
cchRet += strlen(ppszInserts[cActualInserts]);
cActualInserts++;
}
// advance end-of-copy and start-of-copy beyond insertion point
pchEndCopy++;
pchStartCopy = pchEndCopy;
}
Exit:
// null-terminate return string
szReturned[cchRet] = NULL;
}
/* ============================================================================
CchPathFromFilespec
Returns a filespec's path length (exclusive of filespec)
NOTE path string includes trailing '\' or '/'
Returns:
Length of path string
Side effects:
None
*/
UINT
CchPathFromFilespec
(
LPCTSTR szFileSpec // filespec
)
{
TCHAR* p1 = _tcsrchr(szFileSpec, _T('\\'));
TCHAR* p2 = _tcsrchr(szFileSpec, _T('/')); // this wont be a DBCS trail byte.
if (p1 == NULL && p2 == NULL)
THROW(E_FAIL);
return (UINT) ((((LPTSTR)max(p1,p2) - szFileSpec)) + 1);
}
/* ============================================================================
GetPathFromParentAndFilespec
Returns an absolute path which is a 'parent' file's path concatenated with a filespec.
Returns:
absolute path (out-parameter)
Side effects:
None
*/
void
GetPathFromParentAndFilespec
(
LPCTSTR szParentPath, // parent path
LPCTSTR szFileSpec, // filespec
LPTSTR* pszPath // resolved path (out-parameter)
)
{
UINT cchParentPath = CchPathFromFilespec(szParentPath);
if ((cchParentPath + _tcslen(szFileSpec)) > MAX_PATH)
THROW(E_FAIL);
_tcsncpy(*pszPath, szParentPath, cchParentPath);
_tcscpy(*pszPath + cchParentPath, szFileSpec);
}
/* ============================================================================
HandleAccessFailure
Handles an access-denied failure
Returns:
nothing
Side effects:
none
*/
void
HandleAccessFailure
(
CHitObj* pHitObj, // browser's hitobj
TCHAR * szFile // file path of main template
)
{
Assert(pHitObj);
// debugging diagnostic print
#if DBG
STACK_BUFFER( authUserBuff, 32 );
char *szAuthUser;
DWORD cbAuthUser;
if (SERVER_GET(pHitObj->PIReq(), "AUTH_USER", &authUserBuff, &cbAuthUser)) {
szAuthUser = (char*)authUserBuff.QueryPtr();
}
else {
szAuthUser = "anonymous";
}
#if UNICODE
DBGPRINTF((DBG_CONTEXT, "No permission to read file %S\n", szFile != NULL? szFile : pHitObj->PIReq()->QueryPszPathTranslated()));
#else
DBGPRINTF((DBG_CONTEXT, "No permission to read file %s\n", szFile != NULL? szFile : pHitObj->PIReq()->QueryPszPathTranslated()));
#endif
DBGPRINTF((DBG_CONTEXT, " The user account is \"%s\"\n", szAuthUser));
#endif
CResponse *pResponse = pHitObj->PResponse();
if (!pResponse)
return;
pHitObj->PIReq()->SetDwHttpStatusCode(401);
HandleSysError(401,3,IDE_401_3_ACCESS_DENIED,IDH_401_3_ACCESS_DENIED,pHitObj->PIReq(),pHitObj);
return;
}
/* ============================================================================
SendToLog
Sends Error Info to Log
Returns:
Nothing
Side effects:
None.
*/
void
SendToLog
(
DWORD dwMask,
CHAR *szFileName,
CHAR *szLineNum,
CHAR *szEngine,
CHAR *szErrCode,
CHAR *szShortDes,
CHAR *szLongDes,
CHitObj *pHitObj // browser's hitobj
)
{
CHAR *szFileNameT;
CHAR *szLineNumT;
CHAR *szEngineT;
CHAR *szErrCodeT;
CHAR *szShortDesT;
CHAR *szLongDesT;
if(pHitObj) {
// NOTE - szFileName is assumed to be UTF8 when UNICODE is defined
szFileNameT = StringDupA(szFileName);
szLineNumT = StringDupA(szLineNum);
szEngineT = StringDupA(szEngine);
szErrCodeT = StringDupA(szErrCode);
szShortDesT = StringDupA(szShortDes);
szLongDesT = StringDupA(szLongDes);
HandleError(szShortDesT, szLongDesT, dwMask, szFileNameT, szLineNumT, szEngineT, szErrCodeT, NULL, pHitObj);
}
}
/* ============================================================================
FreeNullify
Frees and nullifies a ptr to memory allocated with malloc.
Returns:
Nothing
Side effects:
None
*/
static void
FreeNullify
(
void** pp
)
{
if(*pp != NULL)
{
free(*pp);
*pp = NULL;
}
}
/* ============================================================================
SmallTemplateFreeNullify
Frees and nullifies a ptr to memory allocated with CTemplate::SmallMalloc.
Returns:
Nothing
Side effects:
None
*/
static void
SmallTemplateFreeNullify
(
void** pp
)
{
if(*pp != NULL)
{
CTemplate::SmallFree(*pp);
*pp = NULL;
}
}
/* ============================================================================
LargeTemplateFreeNullify
Frees and nullifies a ptr to memory allocated with CTemplate::LargeMalloc.
Returns:
Nothing
Side effects:
None
*/
static void
LargeTemplateFreeNullify
(
void** pp
)
{
if(*pp != NULL)
{
CTemplate::LargeFree(*pp);
*pp = NULL;
}
}
/* ============================================================================
GetProgLangId
Gets the prog lang id for a script engine
Returns:
Nothing
Side effects:
throws on error
*/
HRESULT
GetProgLangId
(
CByteRange& brEngine, // engine name
PROGLANG_ID* pProgLangId // prog lang id (out-parameter)
)
{
STACK_BUFFER( tempEngine, 128 );
if (!tempEngine.Resize(brEngine.m_cb + 1)) {
return E_OUTOFMEMORY;
}
LPSTR szProgLang = static_cast<LPSTR> (tempEngine.QueryPtr());
strncpy(szProgLang, (LPCSTR)brEngine.m_pb, brEngine.m_cb);
szProgLang[brEngine.m_cb] = '\0';
return g_ScriptManager.ProgLangIdOfLangName((LPCSTR) szProgLang, pProgLangId);
}
/* ****************************************************************************
CByteRange member functions
*/
/* ========================================================
CByteRange::Advance
Advances a byte range.
*/
void
CByteRange::Advance(UINT i)
{
if(i >= m_cb)
{
Nullify();
}
else
{
m_pb += i;
m_cb -= i;
}
}
/* ========================================================
CByteRange::FMatchesSz
Compares a byte range with a string, case-insensitively
*/
BOOLB
CByteRange::FMatchesSz
(
LPCSTR psz
)
{
if(IsNull() || (psz == NULL))
return FALSE;
if((ULONG)strlen(psz) != m_cb)
return FALSE;
return !_strnicmp((const char*)m_pb, psz, m_cb);
}
/* ============================================================================
CByteRange::PbString
Finds a case-insensitive string within a byte range
Returns:
Ptr to first case-insensitive occurrence of the string in this byte range;
NULL if none found.
Side effects:
None
*/
BYTE*
CByteRange::PbString
(
LPSTR psz,
LONG lCodePage
)
{
UINT cch = strlen(psz);
if(cch == 0)
return NULL;
BYTE *pbLocal = m_pb;
UINT cbLocal = m_cb;
char ch0 = psz[0];
BYTE *pbTemp = NULL;
UINT cbAdvanced = 0;
if (IsCharAlpha(ch0))
{
// cannot use strchr
while (cbLocal >= cch)
{
if (_strnicmp((const char *)pbLocal, psz, cch) == 0)
return pbLocal;
// The following code simply performs a DBCS-enabled ByteRange.Advance() action.
pbTemp = pbLocal;
pbLocal = *pbLocal? (BYTE *)AspCharNextA((WORD)lCodePage, (const char *)pbLocal) : pbLocal + 1;
cbAdvanced = DIFF(pbLocal - pbTemp);
if (cbAdvanced >= cbLocal)
{
cbLocal = 0;
pbLocal = NULL;
}
else
cbLocal -= cbAdvanced;
}
}
else
{
// can use strchr
while (cbLocal >= cch)
{
pbTemp = (BYTE *)memchr(pbLocal, ch0, cbLocal);
if (pbTemp == NULL)
break;
UINT cbOffset = DIFF(pbTemp - pbLocal);
if (cbOffset >= cbLocal)
break;
pbLocal = pbTemp;
cbLocal -= cbOffset;
if (cch <= cbLocal && _strnicmp((const char *)pbLocal, psz, cch) == 0)
return pbLocal;
// The following code simply performs a DBCS-enabled ByteRange.Advance() action.
pbTemp = pbLocal;
pbLocal = *pbLocal? (BYTE *)AspCharNextA((WORD)lCodePage, (const char *)pbLocal) : pbLocal + 1;
cbAdvanced = DIFF(pbLocal - pbTemp);
if (cbAdvanced >= cbLocal)
{
cbLocal = 0;
pbLocal = NULL;
}
else
cbLocal -= cbAdvanced;
}
}
return NULL;
}
/* ============================================================================
CByteRange::PbOneOfAspOpenerStringTokens
Finds a case-insensitive string within a byte range
that matches one of the strings passed
!!! WILL ONLY WORK IF THE FOLLOWING IS TRUE:
1) All the tokens start with the same charater (for example '<')
2) This character is not alpha (so that strchr() would work)
!!! THE ABOVE ASSUMPTIONS MAKE THE CODE WORK FASTER
Returns:
Ptr to first case-insensitive occurrence of the string in this byte range;
NULL if none found.
*pcindex is set to the index of string found
Side effects:
None
*/
BYTE*
CByteRange::PbOneOfAspOpenerStringTokens
(
LPSTR rgszTokens[],
UINT rgcchTokens[],
UINT nTokens,
UINT *pidToken
)
{
if (nTokens == 0)
return NULL;
BYTE *pb = m_pb; // pointer to unsearched remainder of the range
UINT cbRemainder = m_cb; // remaining byte range length
char ch0 = rgszTokens[0][0]; // first char of every token
while (cbRemainder > 0) {
// BUG 82331: avoid strchr() because byte range is not null-terminated
while (cbRemainder > 0 && *pb != ch0)
{
++pb;
--cbRemainder;
}
if (cbRemainder == 0)
break;
for (UINT i = 0; i < nTokens; i++) {
if ((rgcchTokens[i] <= cbRemainder)
&& (rgszTokens[i] != NULL)
&& (_strnicmp((const char *)pb, rgszTokens[i], rgcchTokens[i]) == 0)) {
*pidToken = i;
return pb;
}
}
++pb;
--cbRemainder;
}
return NULL;
}
/* ============================================================================
CByteRange::FEarlierInSourceThan
Does this byte range occur earlier in source than parameter byte range?
Returns
TRUE or FALSE
Side effects
None
*/
BOOLB
CByteRange::FEarlierInSourceThan(CByteRange& br)
{
if(br.IsNull())
return TRUE;
return(m_idSequence < br.m_idSequence);
}
/* ****************************************************************************
CTemplate member functions
*/
/* ============================================================================
CTemplate::CTemplate
Ctor
*/
CTemplate::CTemplate()
: m_pWorkStore(NULL),
m_fGlobalAsa(FALSE),
m_fReadyForUse(FALSE),
m_fDontAttach(FALSE),
m_hEventReadyForUse(NULL),
m_fDebuggerDetachCSInited(FALSE),
m_pbStart(NULL),
m_cbTemplate(0),
m_cRefs(1), // NOTE ctor AddRefs implicitly
m_pbErrorLocation(NULL),
m_idErrMsg(0),
m_cMsgInserts(0),
m_ppszMsgInserts(NULL),
m_cScriptEngines(0),
m_rgrgSourceInfos(NULL),
m_rgpDebugScripts(NULL),
m_rgpFilemaps(NULL),
m_cFilemaps(0),
m_rgpSegmentFilemaps(NULL),
m_cSegmentFilemapSlots(0),
m_wCodePage(CP_ACP),
m_lLCID(LOCALE_SYSTEM_DEFAULT),
m_ttTransacted(ttUndefined),
m_fSession(TRUE),
m_fScriptless(FALSE),
m_fDebuggable(FALSE),
m_fIsValid(FALSE),
m_fDontCache(FALSE),
m_fZombie(FALSE),
m_fCodePageSet(FALSE),
m_fLCIDSet(FALSE),
m_fIsPersisted(FALSE),
m_fIsUNC(FALSE),
m_fIsEncrypted(FALSE),
m_szPersistTempName(NULL),
m_szApplnVirtPath(NULL),
m_szApplnURL(NULL),
m_CPTextEvents(this, IID_IDebugDocumentTextEvents),
m_pdispTypeLibWrapper(NULL),
m_dwLastErrorMask(S_OK),
m_hrOnNoCache(S_OK),
m_cbTargetOffsetPrevT(0),
m_pHashTable(NULL),
m_pServicesConfig(NULL),
m_cUseCount(1),
m_pMostRecentImpersonatedTokenUser (NULL),
m_pMostRecentImpersonatedSID(NULL),
m_cbTokenUser(0),
m_fNeedsMonitoring(FALSE),
m_fInCheck(FALSE),
m_dwLastMonitored (0),
m_dwLastAccessCheck(0),
m_fTemplateLockInited(FALSE),
m_dwCacheTag(0)
{
m_wCodePage = GetACP();
for (UINT i = 0; i < ILE_MAX; i++)
{
m_pszLastErrorInfo[i] = NULL;
}
IF_DEBUG(TEMPLATE)
{
WriteRefTraceLog(gm_pTraceLog, m_cRefs, this);
}
#if PER_TEMPLATE_REFLOG
m_pTraceLog = CreateRefTraceLog (100,0);
WriteRefTraceLog (m_pTraceLog,m_cRefs, this);
#endif
}
/* ============================================================================
CTemplate::~CTemplate
Destructor
Returns:
Nothing
Side effects:
None
*/
CTemplate::~CTemplate()
{
DBGPRINTF(( DBG_CONTEXT, "Deleting template, m_cFilemaps = %d, m_rgpFilemaps %p\n", m_cFilemaps, m_rgpFilemaps));
// first, remove this template from its inc-files' template lists
// NOTE must do this before freeing template memory
RemoveFromIncFiles();
// Remove the template from the debugger's list of documents
Detach();
PersistCleanup();
if(m_rgpFilemaps)
{
for(UINT i = 0; i < m_cFilemaps; i++)
delete m_rgpFilemaps[i];
SmallTemplateFreeNullify((void**) &m_rgpFilemaps);
}
FreeGoodTemplateMemory();
if (m_pWorkStore)
delete m_pWorkStore;
//FileName, LineNum, Engine, ErrorCode, ShortDes, LongDes
for(UINT iErrInfo = 0; iErrInfo < ILE_MAX; iErrInfo++)
{
FreeNullify((void**) &m_pszLastErrorInfo[iErrInfo]);
}
if(m_hEventReadyForUse != NULL)
CloseHandle(m_hEventReadyForUse);
if (m_LKHashKey.szPathTranslated)
free((void *)m_LKHashKey.szPathTranslated);
if (m_szApplnURL)
delete [] m_szApplnURL;
if (m_fDebuggerDetachCSInited)
DeleteCriticalSection(&m_csDebuggerDetach);
if (m_fTemplateLockInited)
DeleteCriticalSection(&m_csTemplateLock);
if (m_pdispTypeLibWrapper)
m_pdispTypeLibWrapper->Release();
if (m_szPersistTempName)
CTemplate::LargeFree(m_szPersistTempName);
if (m_pMostRecentImpersonatedTokenUser)
CTemplate::SmallFree(m_pMostRecentImpersonatedTokenUser);
if (m_pServicesConfig)
m_pServicesConfig->Release();
m_pServicesConfig = NULL;
#if PER_TEMPLATE_REFLOG
DestroyRefTraceLog (m_pTraceLog);
#endif
}
/* ============================================================================
CTemplate::QueryInterface
Provides QueryInterface implementation for CTemplate
NOTE: It is arbitrary which vtable we return for IDebugDocument & IDebugDocumentInfo.
*/
HRESULT
CTemplate::QueryInterface(const GUID &uidInterface, void **ppvObj)
{
if (uidInterface == IID_IUnknown || uidInterface == IID_IDebugDocumentProvider)
*ppvObj = static_cast<IDebugDocumentProvider *>(this);
else if (uidInterface == IID_IDebugDocument || uidInterface == IID_IDebugDocumentInfo || uidInterface == IID_IDebugDocumentText)
*ppvObj = static_cast<IDebugDocumentText *>(this);
else if (uidInterface == IID_IConnectionPointContainer)
*ppvObj = static_cast<IConnectionPointContainer *>(this);
else
*ppvObj = NULL;
if (*ppvObj)
{
AddRef();
return S_OK;
}
else
return E_NOINTERFACE;
}
/* ============================================================================
CTemplate::AddRef
Adds a ref to this template, thread-safely
*/
ULONG
CTemplate::AddRef()
{
LONG cRefs = InterlockedIncrement(&m_cRefs);
Assert(FImplies(m_fIsValid,FImplies(cRefs > 1, m_pbStart != NULL)));
IF_DEBUG(TEMPLATE)
{
WriteRefTraceLog(gm_pTraceLog, cRefs, this);
}
#if PER_TEMPLATE_REFLOG
WriteRefTraceLog(m_pTraceLog, cRefs, this);
#endif
return cRefs;
}
/* ============================================================================
CTemplate::Release
Releases a ref to this template, thread-safely
*/
ULONG
CTemplate::Release()
{
LONG cRefs = InterlockedDecrement(&m_cRefs);
IF_DEBUG(TEMPLATE)
{
WriteRefTraceLog(gm_pTraceLog, cRefs, this);
}
#if PER_TEMPLATE_REFLOG
WriteRefTraceLog(m_pTraceLog, cRefs, this);
#endif
if (cRefs == 0)
delete this;
return cRefs;
}
/* ============================================================================
CTemplate::InitClass
Initilaizes CTemplate static members
Returns:
hresult
Side effects:
allocates memory for static members
*/
HRESULT
CTemplate::InitClass
(
)
{
HRESULT hr = S_OK;
TRY
// init heaps
sm_hSmallHeap = ::HeapCreate(0, 0, 0);
if (!sm_hSmallHeap)
return E_OUTOFMEMORY;
sm_hLargeHeap = ::HeapCreate(0, 0, 0);
if (!sm_hLargeHeap)
return E_OUTOFMEMORY;
// Init token list
gm_pTokenList = new CTokenList;
if (gm_pTokenList == NULL)
return E_OUTOFMEMORY;
gm_pTokenList->Init();
CATCH(hrException)
hr = hrException;
END_TRY
return hr;
}
/* ============================================================================
CTemplate::UnInitClass
Un-initilaizes CTemplate static members
Returns:
Nothing
Side effects:
None
*/
void
CTemplate::UnInitClass()
{
if (gm_pTokenList)
{
delete gm_pTokenList;
gm_pTokenList = NULL;
}
if (sm_hLargeHeap)
::HeapDestroy(sm_hLargeHeap);
if (sm_hLargeHeap != sm_hSmallHeap)
{
if (sm_hSmallHeap)
::HeapDestroy(sm_hSmallHeap);
}
sm_hLargeHeap = sm_hSmallHeap = NULL;
}
/* ============================================================================
CTemplate::Init
Inits template in preparation for calling Compile
Does the minimum needed
Returns:
Success or failure code
Side effects:
Allocates memory
*/
HRESULT
CTemplate::Init
(
CHitObj *pHitObj, // ptr to template's hit object
BOOL fGlobalAsa, // is this the global.asa file?
const CTemplateKey &rTemplateKey // hash table key
)
{
HRESULT hr;
// Create debug critical section
ErrInitCriticalSection(&m_csDebuggerDetach, hr);
if (SUCCEEDED(hr))
{
ErrInitCriticalSection(&m_csTemplateLock,hr);
if (FAILED(hr))
{
DeleteCriticalSection(&m_csDebuggerDetach);
return hr;
}
// note critical section creation success
m_fDebuggerDetachCSInited = TRUE;
m_fTemplateLockInited = TRUE;
}
else //FAILED(hr)
return hr;
// Create event: manual-reset, ready-for-use event; non-signaled
m_hEventReadyForUse = IIS_CREATE_EVENT(
"CTemplate::m_hEventReadyForUse",
this,
TRUE, // flag for manual-reset event
FALSE // flag for initial state
);
if (!m_hEventReadyForUse)
return E_OUTOFMEMORY;
// cache GlobalAsp flag
m_fGlobalAsa = BOOLB(fGlobalAsa);
// CIsapiReqInfo better be present
if (pHitObj->PIReq() == NULL)
return E_POINTER;
// Initialize the template's code page
m_wCodePage = pHitObj->PAppln()->QueryAppConfig()->uCodePage();
m_lLCID = pHitObj->PAppln()->QueryAppConfig()->uLCID();
STACK_BUFFER( serverNameBuff, 32 );
STACK_BUFFER( serverPortBuff, 10 );
STACK_BUFFER( portSecureBuff, 8 );
DWORD cbServerName;
DWORD cbServerPort;
DWORD cbServerPortSecure;
// Construct a URL for the application
// Get the server name and port
if (!SERVER_GET(pHitObj->PIReq(), "SERVER_NAME", &serverNameBuff, &cbServerName)
|| !SERVER_GET(pHitObj->PIReq(), "SERVER_PORT", &serverPortBuff, &cbServerPort)) {
if (GetLastError() == ERROR_OUTOFMEMORY) {
hr = E_OUTOFMEMORY;
}
else {
hr = E_FAIL;
}
return hr;
}
char *szServerPort = (char *)serverPortBuff.QueryPtr();
char *szServerName = (char *)serverNameBuff.QueryPtr();
BOOL fServerPortSecure = FALSE;
// determine if server port is secure
if (SERVER_GET(pHitObj->PIReq(), "SERVER_PORT_SECURE", &portSecureBuff, &cbServerPortSecure)) {
char *szServerPortSecure = (char *)portSecureBuff.QueryPtr();
fServerPortSecure = (szServerPortSecure[0] == '1');
}
// Get the application virtual path
TCHAR szApplnVirtPath[256];
if (FAILED(hr = FindApplicationPath(pHitObj->PIReq(), szApplnVirtPath, sizeof szApplnVirtPath)))
return hr;
TCHAR *szServerNameT;
TCHAR *szServerPortT;
#if UNICODE
CMBCSToWChar convServer;
if (FAILED(hr = convServer.Init(szServerName))) {
return hr;
}
szServerNameT = convServer.GetString();
#else
szServerNameT = szServerName;
#endif
#if UNICODE
CMBCSToWChar convPort;
if (FAILED(hr = convPort.Init(szServerPort))) {
return hr;
}
szServerPortT = convPort.GetString();
#else
szServerPortT = szServerPort;
#endif
// Allocate space for and construct the application URL
m_szApplnURL = new TCHAR [(9 /* sizeof "https://:" */ + _tcslen(szServerNameT) + _tcslen(szServerPortT) + _tcslen(szApplnVirtPath) + 1)];
if (m_szApplnURL == NULL)
return E_OUTOFMEMORY;
TCHAR *pT;
// start with the protocol prefix...
pT = strcpyEx(m_szApplnURL, fServerPortSecure? _T("https://") : _T("http://"));
// next add the servername
pT = strcpyEx(pT, szServerNameT);
// next the colon between the servername and the serverport
pT = strcpyEx(pT, _T(":"));
// next the server port
pT = strcpyEx(pT, szServerPortT);
// now the applURL is built up to the appln path. The next step will be to
// add the virtpath.
m_szApplnVirtPath = pT;
_tcscpy(m_szApplnVirtPath, szApplnVirtPath);
m_LKHashKey.dwInstanceID = rTemplateKey.dwInstanceID;
if ((m_LKHashKey.szPathTranslated = StringDup((TCHAR *)rTemplateKey.szPathTranslated)) == NULL)
return E_OUTOFMEMORY;
return S_OK;
}
/* ============================================================================
CTemplate::Compile
Compiles the template from its source file and include files, if any,
by calling GetSegmentsFromFile (to populate WorkStore),
followed by WriteTemplate (to create the template from WorkStore).
Returns:
HRESULT indicating success or type of failure
Side effects:
Indirectly allocates memory (via WriteTemplate)
Indirectly frees memory on error (via FreeGoodTemplateMemory)
*/
HRESULT
CTemplate::Compile
(
CHitObj* pHitObj
)
{
HRESULT hr = S_OK;
HRESULT hRes = S_OK;
// The following code moved from Init() (to make Init() lighter)
Assert(pHitObj);
// Create and Init WorkStore
if (SUCCEEDED(hr))
{
// construct the workstore - bail on fail
if(NULL == (m_pWorkStore = new CWorkStore))
hr = E_OUTOFMEMORY;
}
if (SUCCEEDED(hr))
{
hr = (m_pWorkStore->m_ScriptStore).Init(pHitObj->QueryAppConfig()->szScriptLanguage(),
pHitObj->QueryAppConfig()->pCLSIDDefaultEngine());
if (hr == TYPE_E_ELEMENTNOTFOUND)
{
// default script language in registry is bogus - send error msg to browser
HandleCTemplateError(
NULL, // source file map
NULL, // ptr to source location where error occurred
IDE_TEMPLATE_BAD_PROGLANG_IN_REGISTRY, // error message id
0, // count of insert strings for error msg
NULL, // array of ptrs to error msg insert strings
pHitObj // Browser Request
);
}
if (FAILED(hr))
{
delete m_pWorkStore;
m_pWorkStore = NULL;
}
}
// Try to init the workstore and map main file - this can fail with oom, etc or user lacks permissions
if (SUCCEEDED(hr))
{
TRY
m_pWorkStore->Init();
AppendMapFile(
NULL, // file spec for this file - NULL means get filespec from pHitObj
NULL, // ptr to filemap of parent file
FALSE, // don't care
pHitObj, // ptr to template's hit object
m_fGlobalAsa // is this the global.asa file?
);
CATCH(hrException)
delete m_pWorkStore;
m_pWorkStore = NULL;
hr = hrException;
if(hr == E_USER_LACKS_PERMISSIONS)
HandleAccessFailure(pHitObj,
(m_rgpFilemaps && m_rgpFilemaps[0])? m_rgpFilemaps[0]->m_szPathTranslated : NULL);
if ((hr != E_COULDNT_OPEN_SOURCE_FILE) && m_rgpFilemaps && m_rgpFilemaps[0])
{
// empty file will fail to map but will have a handle, so we check for it here
if (0 == m_rgpFilemaps[0]->GetSize())
hr = E_SOURCE_FILE_IS_EMPTY;
m_rgpFilemaps[0]->UnmapFile();
}
if (SUCCEEDED(hr))
hr = E_FAIL; // make sure the error is set
END_TRY
}
if (SUCCEEDED(hr))
{
Assert(m_rgpFilemaps[0]);
Assert(m_rgpFilemaps[0]->m_szPathTranslated);
Assert(FImplies(!m_fGlobalAsa, (0 == _tcscmp(m_rgpFilemaps[0]->m_szPathTranslated, pHitObj->PSzCurrTemplatePhysPath()))));
Assert(FImplies(m_fGlobalAsa, (0 == _tcscmp(m_rgpFilemaps[0]->m_szPathTranslated, pHitObj->GlobalAspPath()))));
Assert(0 < m_rgpFilemaps[0]->GetSize());
}
// Record the user who compiled this file (used specifically in UNC). Cannot proceed if there was an error (typically OOM) or Access problem.
if (FAILED(hr) || FAILED (hRes = GetSIDFromTokenHandle(pHitObj->HImpersonate(),
m_pMostRecentImpersonatedSID,
m_pMostRecentImpersonatedTokenUser,
&m_cbTokenUser)
)
)
{
m_fDontCache = TRUE;
// OK, cache HR if m_fDontCache is true
// later, another thread might find this template from the cache even if the template
// has some error and marked as DontCache.
m_hrOnNoCache = FAILED(hr) ? hr : hRes;
m_fReadyForUse = TRUE;
SetEvent(m_hEventReadyForUse);
return hr;
}
// End of Code moved from Init()
// By default we are not in a transaction
m_ttTransacted = ttUndefined;
// By default session is required
m_fSession = TRUE;
// By default assume script exists
m_fScriptless = FALSE;
// we assert, in effect, that template is already init'ed
Assert(FImplies(!m_fGlobalAsa, (0 == _tcscmp(m_rgpFilemaps[0]->m_szPathTranslated, pHitObj->PSzCurrTemplatePhysPath()))));
Assert(FImplies(m_fGlobalAsa, (0 == _tcscmp(m_rgpFilemaps[0]->m_szPathTranslated, pHitObj->GlobalAspPath()))));
TRY
// Get source segments from source file
GetSegmentsFromFile(*(m_rgpFilemaps[0]), *m_pWorkStore, pHitObj);
/* get "language equivalents" for primary languagefrom registry
NOTE we do this here because the user can reset the primary language in the script file,
so we must wait until after GetSegmentsFromFile()
*/
GetLanguageEquivalents();
// Call WriteTemplate, which writes out template components to contiguous memory,
// resulting in a compiled template
// CWriteTemplate...class does the processing and is freed when the Compile completes.
// However, it leaves the compiled template in the heap pointed to by m_pbStart (sideeffect).
CWriteTemplate writeTempl;
// Initialize the WriteTemplate object
writeTempl.Init (m_pWorkStore, this, pHitObj->PAppln()->QueryAppConfig()->fCalcLineNumber());
// Perform estimation and write template
writeTempl.WriteTemplate();
// Record Compilation Cache Tag.
m_dwCacheTag = g_TemplateCache.GetCacheTag();
m_dwLastAccessCheck = GetTickCount();
//
// If any of the Include files are on a UNC or are encrypted then reflect that in the template structure
//
for (unsigned i = 0; i < m_cFilemaps; ++i)
{
m_fIsUNC |= m_rgpFilemaps[i]->m_fIsUNCPath;
m_fIsEncrypted |= m_rgpFilemaps[i]->m_fIsEncryptedFile;
m_rgpFilemaps[i]->CountChars((WORD)m_wCodePage);
}
// Wrap typelibs into single IDispatch*
WrapTypeLibs(pHitObj);
m_fIsValid = TRUE;
CATCH(hrException)
// NOTE: we used to free template memory here. Now we do not because if the
// error was E_USER_LACKS_PERMISSIONS, and template is in cache, we don't want
// to sabotage future requests. There's no need to decache the template.
//
// The template destructor will free this memory anyway.
//
hr = hrException;
END_TRY
// check if scriptless
if (!m_fGlobalAsa)
{
// count various stuff to make the determination
DWORD cScriptEngines = m_pWorkStore->m_ScriptStore.CountPreliminaryEngines();
DWORD cPrimaryScriptSegments = (cScriptEngines > 0) ? m_pWorkStore->m_ScriptStore.m_ppbufSegments[0]->Count() : 0;
DWORD cObjectTags = m_pWorkStore->m_ObjectInfoStore.Count();
DWORD cHtmlSegments = m_pWorkStore->m_bufHTMLSegments.Count();
DWORD c449Cookies = m_rgp449.length();
BOOL fPageCommandsPresent = m_pWorkStore->m_fPageCommandsExecuted;
if (cScriptEngines <= 1 &&
cPrimaryScriptSegments == 0 &&
cObjectTags == 0 &&
cHtmlSegments == 1 &&
c449Cookies == 0 &&
!fPageCommandsPresent)
{
m_fScriptless = TRUE;
}
}
// free working storage - no longer needed
delete m_pWorkStore;
m_pWorkStore = NULL;
// un-map filemaps - NOTE filemaps stay around for possible post-compile errors (e.g., script failure)
UnmapFiles();
// Debugging: print data structure to debugger
IF_DEBUG(SCRIPT_DEBUGGER)
{
if (SUCCEEDED(hr))
{
DBGPRINTF((DBG_CONTEXT, "Script Compiled\n"));
for (UINT i = 0; i < m_cScriptEngines; ++i)
{
char *szEngineName;
PROGLANG_ID *pProgLangID;
const wchar_t *wszScriptText;
GetScriptBlock(i, &szEngineName, &pProgLangID, &wszScriptText);
DBGPRINTF((DBG_CONTEXT, "Engine %d, Language=\"%s\":\n", i, szEngineName));
DBGINFO((DBG_CONTEXT, (char *) wszScriptText));
DBGINFO((DBG_CONTEXT, "\n"));
}
}
}
if (hr == E_TEMPLATE_COMPILE_FAILED_DONT_CACHE)
{
m_fDontCache = TRUE;
m_hrOnNoCache = hr;
}
// Set ready-for-use flag true and event to signaled
// NOTE we do this whether success or failure, since even a failed-compile template
// will remain in the cache to allow template cache mgr to satisfy requests on it
m_fReadyForUse = TRUE;
SetEvent(m_hEventReadyForUse);
// Note whether the template currently is debuggable
// BUG BUG: Template is debuggable or not based on first app. If shared between a debug
// & non-debug app, the first application wins.
m_fDebuggable = (BOOLB)!!pHitObj->PAppln()->FDebuggable();
return hr;
}
/* ============================================================================
CTemplate::Deliver
Delivers template to caller once template is ready for use
NOTE 'compile failure' == template is 'ready for use' but did not compile successfully;
this allows cache mgr to keep a failed template in cache in case it gets requested again
Returns
success or failure
Side effects
none
*/
HRESULT
CTemplate::Deliver
(
CHitObj* pHitObj
)
{
// NOTE: There was a compiler bug where 'ps' would not be correctly aligned,
// EVEN if it was declared to be a DWORD array, if 'ps' was nested in
// a block. Thus declare it here.
//
BYTE ps[SIZE_PRIVILEGE_SET]; // privilege set
HRESULT hr = S_OK;
BOOL fImpersonatedUser = FALSE;
HANDLE hVirtIncImpToken = NULL;
HANDLE hCurImpToken = NULL;
// if ready flag is not yet set block until template is ready for use
if(!m_fReadyForUse)
{
WaitForSingleObject(m_hEventReadyForUse, INFINITE);
Assert(m_fReadyForUse); // when event unblocks, flag will be set
}
if (m_pbStart == NULL)
{
if (m_fDontCache && m_dwLastErrorMask == 0)
{
DBGPRINTF((DBG_CONTEXT, "template compile failed with %08x\n", m_hrOnNoCache));
DBG_ASSERT(FAILED(m_hrOnNoCache));
// Safety net: always fail, even if "m_hrOnNoCache" did not get set somehow.
hr = m_hrOnNoCache;
if (SUCCEEDED(m_hrOnNoCache))
hr = E_FAIL;
if(hr == E_USER_LACKS_PERMISSIONS)
HandleAccessFailure(pHitObj, (m_rgpFilemaps && m_rgpFilemaps[0])? m_rgpFilemaps[0]->m_szPathTranslated : NULL);
return hr;
}
// template compile failed - NOTE null start-of-template ptr == template compile failed
// use cached error info
SendToLog( m_dwLastErrorMask,
m_pszLastErrorInfo[ILE_szFileName],
m_pszLastErrorInfo[ILE_szLineNum],
m_pszLastErrorInfo[ILE_szEngine],
m_pszLastErrorInfo[ILE_szErrorCode],
m_pszLastErrorInfo[ILE_szShortDes],
m_pszLastErrorInfo[ILE_szLongDes],
pHitObj);
hr = E_TEMPLATE_COMPILE_FAILED;
}
else if (!pHitObj->FIsBrowserRequest())
{
return hr;
}
else
// template compile succeeded - check user's file permissions
// ACLs: the following code should in future be shared with IIS (see creatfil.cxx in IIS project)
{
HANDLE hUserAccessToken = pHitObj->HImpersonate(); // current user's access token
DWORD dwPS = sizeof(ps); // privilege set size
DWORD dwGrantedAccess; // granted access mask
BOOL fAccessGranted; // access granted flag
GENERIC_MAPPING gm = { // generic mapping struct
FILE_GENERIC_READ,
FILE_GENERIC_WRITE,
FILE_GENERIC_EXECUTE,
FILE_ALL_ACCESS
};
((PRIVILEGE_SET*)ps)->PrivilegeCount = 0; // set privilege count to 0
Assert(NULL != hUserAccessToken);
HRESULT HRes = E_FAIL;
BOOL fNeedsUpdate = FALSE;
PSID pPrevSid = NULL;
PSID pSid=NULL;
DWORD cbTempTokenBuffer = 0;
LPVOID pvTempTokenBuffer = NULL;
DWORD dwAccessCheckTimeStamp = 0;
//
// Obtain a lock on the template so that only one Deliver will update the credentials while the others will just fall through
// Only one process should write the timestamp/impersonation token.
// If the File is either UNC or is Encrypted then we need to go through all the access check doors
//
if (m_fIsUNC)
{
EnterCriticalSection(&m_csTemplateLock);
pPrevSid = m_pMostRecentImpersonatedSID;
dwAccessCheckTimeStamp = m_dwLastAccessCheck;
LeaveCriticalSection(&m_csTemplateLock);
// GetCurrent Users Impersonation Token
HRes = GetSIDFromTokenHandle(pHitObj->HImpersonate(), pSid,pvTempTokenBuffer, &cbTempTokenBuffer);
}
for(UINT i = 0; i < m_cFilemaps; i++)
{
if (!(m_rgpFilemaps[i]->FHasUNCPath()))
{
if(NULL == m_rgpFilemaps[i]->m_pSecurityDescriptor) //? Dunno why we should continue. This could be a security Issue?
continue;
if(!AccessCheck(
m_rgpFilemaps[i]->m_pSecurityDescriptor, // pointer to security descriptor
hUserAccessToken, // handle to client access token
FILE_GENERIC_READ, // access mask to request
&gm, // address of generic-mapping structure
(PRIVILEGE_SET*)ps, // address of privilege-set structure
&dwPS, // address of size of privilege-set structure
&dwGrantedAccess, // address of granted access mask
&fAccessGranted // address of flag indicating whether access granted
))
return E_FAIL;
if(!fAccessGranted)
{
// if access is denied on any file, handle the failure and return
HandleAccessFailure(pHitObj, m_rgpFilemaps[0]->m_szPathTranslated);
return E_USER_LACKS_PERMISSIONS;
}
}
else //if it is a UNC
{
//
// Get the SID for current thread and compare with compiled/lastAccessed sid.
// If the SIDs match and we are within the TTL, skip the test.
//
// If either of the conditions are not met, go onto remote UNC box to refresh credentials.
//
if( !pPrevSid // could not store the previous SID
|| (FAILED (HRes)) // could not obtain SID
|| !EqualSid(pPrevSid, pSid) // different users
|| (EqualSid(pPrevSid, pSid ) && CheckTTLTimingWindow(dwAccessCheckTimeStamp, g_dwFileMonitoringTimeoutSecs))
// same user but outside TTL
)
{
//
// Perform impersonation on the target user
//
fImpersonatedUser = FALSE;
hVirtIncImpToken = NULL;
hCurImpToken = NULL;
// TODO: Could be a PERF bottleneck, if we are going to the same UNC.
// TODO: Try to Somehow store the previous Impersonation token and if they are the same then dont get the token again.
// TODO: Beware...this could be messy.
//
// We must Impersonate LoggedOnUser only in the UNC case.
// In the Encrypted case the current threads credentials should be able to open the file.
//
if (SUCCEEDED(pHitObj->PIReq()->GetVirtualPathToken(m_rgpFilemaps[i]->m_szPathInfo, &hVirtIncImpToken)))
{
// set the impersonation token and note that we did so
// NOTE - there is intentionally no error checking. The
// assumption being that we are doing best effort at the
// impersonation because throwing an error here could be
// tricky for the user to interpret the problem. However,
// if the impersonation fails, and ASP can still open the
// file (e.g. passthru authentication), then everyone's
// happy.
AspDoRevertHack(&hCurImpToken);
fImpersonatedUser = ImpersonateLoggedOnUser(hVirtIncImpToken);
if (!fImpersonatedUser)
{
AspUndoRevertHack(&hCurImpToken);
}
}
//
// Check existence of file...go thru all doors
//
hr = AspGetFileAttributes (m_rgpFilemaps[i]->m_szPathTranslated);
//
// Undo impersonation if any.
//
if (fImpersonatedUser)
AspUndoRevertHack(&hCurImpToken);
if (hVirtIncImpToken)
CloseHandle(hVirtIncImpToken);
if (FAILED(hr))
{
// Too bad...(actually maybe good) the user does not have access to the share.
// if access is denied on any file, handle the failure and return
HandleAccessFailure(pHitObj, m_rgpFilemaps[0]->m_szPathTranslated);
return E_USER_LACKS_PERMISSIONS;
}
fNeedsUpdate = TRUE;
}
}
}
if (fNeedsUpdate) // This flag being set also means that there was a UNC path or encrypted file in the main/include files. Thus the first crit sec was entered
{
EnterCriticalSection (&m_csTemplateLock);
m_pMostRecentImpersonatedTokenUser = pvTempTokenBuffer;
m_pMostRecentImpersonatedSID = pSid;
m_cbTokenUser = cbTempTokenBuffer;
m_dwLastAccessCheck = GetTickCount();
LeaveCriticalSection (&m_csTemplateLock);
}
}
// Reset the Session.CodePage to the script compilation-time codepage
// only if a code page directive was found during compilation
if (m_fCodePageSet && (!pHitObj->FHasSession() || !pHitObj->PSession()->FCodePageSet()))
{
pHitObj->SetCodePage(m_wCodePage);
}
// Reset the Session.LCID to the script compilation-time LCID
// only if an LCID directive was found during compilation
if (m_fLCIDSet && (!pHitObj->FHasSession() || !pHitObj->PSession()->FLCIDSet()))
{
pHitObj->SetLCID(m_lLCID);
}
return hr;
}
/* ============================================================================
CTemplate::GetSIDFromTokenHandle
Takes a token handle and gets the User SID information corresponding to that token.
Returns
HResult
Side effects
none
*/
HRESULT CTemplate::GetSIDFromTokenHandle (HANDLE tokenHandle, PSID pSid, LPVOID pBuffer, DWORD *pcbSize)
{
HRESULT hr = S_OK;
BOOL bRet;
DWORD cbTokenUserBuffer = 0;
LPVOID pvTokenUserBuffer = NULL;
// Get buffer size
bRet = GetTokenInformation(tokenHandle,
TokenUser,
NULL,
0,
&cbTokenUserBuffer
);
// According to MSDN this call will fail. But we will have a valid value in cbTokenUserBuffer
// Allocate the space and redo the call
pvTokenUserBuffer = (BYTE*) CTemplate::SmallMalloc(cbTokenUserBuffer );
if (!pvTokenUserBuffer)
return E_OUTOFMEMORY;
// Get TokenUser
bRet = GetTokenInformation(tokenHandle,
TokenUser,
pvTokenUserBuffer,
cbTokenUserBuffer,
&cbTokenUserBuffer
);
if (!bRet)
{
if (pvTokenUserBuffer)
CTemplate::SmallFree(pvTokenUserBuffer);
return HRESULT_FROM_WIN32(GetLastError());
}
//Free previously allocated TokenUser buffer
if (pBuffer)
CTemplate::SmallFree(pBuffer);
// Write the values to callers buffer
pBuffer = pvTokenUserBuffer;
pSid = ((TOKEN_USER *)pvTokenUserBuffer)->User.Sid;
*pcbSize = cbTokenUserBuffer;
return hr;
}
/* ============================================================================
CTemplate::RemoveIncFile
Removes (by setting to null) an inc-file ptr from this template's inc-file list.
Returns:
Nothing
Side effects:
None
*/
void
CTemplate::RemoveIncFile
(
CIncFile* pIncFile
)
{
// If the filemap count is non-zero the pointer to
// the array of filemaps has better not be null
DBGPRINTF(( DBG_CONTEXT, "m_cFilemaps = %d, m_rgpFilemaps %p\n", m_cFilemaps, m_rgpFilemaps));
Assert((m_cFilemaps <= 0) || (m_rgpFilemaps != NULL));
// find the inc-file in list
for(UINT i = 1; (i < m_cFilemaps) && (m_rgpFilemaps[i]->m_pIncFile != pIncFile); i++)
;
// assert that we found the inc-file in list
Assert((i < m_cFilemaps) && (m_rgpFilemaps[i]->m_pIncFile == pIncFile));
// set inc-file ptr null
m_rgpFilemaps[i]->m_pIncFile = NULL;
}
/*===================================================================
CTemplate::FTemplateObsolete
Test to see if the files this template depends on have changed since it
was compiled.
We use this in cases where we may have missed a change notification,
for example, when there were too many changes to record in our change
notification buffer. We check the last time the file was written too,
and the security descriptor, since changes to the security descriptor
aren't noted in the file last write time.
Parameters:
None
Returns:
TRUE if the template is obsolete, else FALSE
*/
BOOL CTemplate::FTemplateObsolete(VOID)
{
BOOL fStatus = FALSE;
for (UINT i = 0; i < m_cFilemaps; i++)
{
if (FFileChangedSinceCached(m_rgpFilemaps[i]->m_szPathTranslated,
m_rgpFilemaps[i]->m_hFile,
m_rgpFilemaps[i]->m_ftLastWriteTime))
{
// If the file write time has changed we know enough
// and can quit here
fStatus = TRUE;
break;
}
else
{
// The file hasn't been writen to, but the security descriptor may
// have chagned
// Assert on non-valid security descriptor
if (NULL != m_rgpFilemaps[i]->m_pSecurityDescriptor)
{
PSECURITY_DESCRIPTOR pSecurityDescriptor = NULL;
DWORD dwSize = m_rgpFilemaps[i]->m_dwSecDescSize;
if( 0 == GetSecDescriptor(m_rgpFilemaps[i]->m_szPathTranslated, &pSecurityDescriptor, &dwSize))
{
if (pSecurityDescriptor)
{
// if the size is not the same then set fStatus to TRUE no need to compare memory blocks.
if(dwSize != GetSecurityDescriptorLength(m_rgpFilemaps[i]->m_pSecurityDescriptor))
{
fStatus = TRUE;
}
else
{
// The size of the security descriptor hasn't changed
// but we have to compare the contents to make sure they haven't changed
fStatus = !(0 == memcmp(m_rgpFilemaps[i]->m_pSecurityDescriptor, pSecurityDescriptor, dwSize));
}
// We are done with the descriptor
free(pSecurityDescriptor);
}
else
{
// Since we failed to get a security descriptor
// assume the file has changed.
fStatus = TRUE;
}
}
}
}
// Quit as soon as we find a change
if (fStatus)
{
break;
}
}
return fStatus;
}
/* ============================================================================
CTemplate::GetSourceFileName
Returns name of source file on which this template is based
Returns
source file name
Side effects
none
*/
LPTSTR
CTemplate::GetSourceFileName(SOURCEPATHTYPE pathtype)
{
if (!m_rgpFilemaps)
{
return NULL;
}
switch (pathtype)
{
case SOURCEPATHTYPE_PHYSICAL:
return((m_rgpFilemaps[0] ? m_rgpFilemaps[0]->m_szPathTranslated : NULL));
case SOURCEPATHTYPE_VIRTUAL:
return((m_rgpFilemaps[0] ? m_rgpFilemaps[0]->m_szPathInfo : NULL));
default:
return(NULL);
}
}
/* ============================================================================
CTemplate::Count
Returns count of components of type tcomp contained in this template
Returns:
Count of components of type tcomp
Side effects:
None
*/
USHORT
CTemplate::Count
(
TEMPLATE_COMPONENT tcomp
)
{
Assert(NULL != m_pbStart);
// script engines and script blocks have the same count, stored in same slot
if(tcomp == tcompScriptEngine)
tcomp = tcompScriptBlock;
// counts are stored at start of template in sequential slots, starting with script blocks count
return * (USHORT*) ((USHORT*)m_pbStart + (tcomp - tcompScriptBlock));
}
/* ============================================================================
CTemplate::GetScriptBlock
Gets ptrs to script engine name, prog lang id and script text of i-th script block.
Returns:
Out-parameters; see below
Side effects:
None
*/
void
CTemplate::GetScriptBlock
(
UINT i, // script block id
LPSTR* pszScriptEngine, // ptr to script engine name (out-parameter)
PROGLANG_ID** ppProgLangId, // ptr to prog lang id (out-parameter)
LPCOLESTR* pwstrScriptText // ptr to wstr script text (out-parameter)
)
{
CByteRange brEngine; // engine name
CByteRange brScriptText; // script text
UINT cbAlignment; // count of bytes guid was shifted in WriteTemplate() to make it dword-aligned
BYTE* pbEngineInfo = GetAddress(tcompScriptEngine, (USHORT)i); // ptr to engine info
Assert(pbEngineInfo != NULL);
Assert(i < CountScriptEngines());
// Get engine name from start of engine info
ByteRangeFromPb(pbEngineInfo, brEngine);
ByteRangeFromPb(GetAddress(tcompScriptBlock, (USHORT)i), brScriptText);
Assert(!brEngine.IsNull());
Assert(!brScriptText.IsNull());
// Advance ptr past name to prog lang id
// length of prefix + length of name + NULL
pbEngineInfo += (sizeof(UINT) + (*pbEngineInfo) + 1);
// Get prog lang id - it will be on the next pointer sized boundary
cbAlignment = (UINT) (((DWORD_PTR) pbEngineInfo) % sizeof(DWORD));
if(cbAlignment > 0)
{pbEngineInfo += (sizeof(DWORD) - cbAlignment);}
*pszScriptEngine = (LPSTR)brEngine.m_pb;
*ppProgLangId = (PROGLANG_ID*)pbEngineInfo;
*pwstrScriptText = (LPCOLESTR)brScriptText.m_pb;
}
/* ============================================================================
CTemplate::GetObjectInfo
Returns i-th object-info in template as object name and
its clsid, scope, model
Returns:
HRESULT
Out-parameters; see below
Side effects:
*/
HRESULT
CTemplate::GetObjectInfo
(
UINT i, // object index
LPSTR* ppszObjectName, // address of object name ptr (out-parameter)
CLSID* pClsid, // address of object clsid
CompScope* pcsScope, // address of object scope
CompModel* pcmModel // address of object threading model
)
{
BYTE* pbObjectInfo = GetAddress(tcompObjectInfo, (USHORT)i); // ptr to current read location
CByteRange brName; // object name
UINT cbAlignment; // count of bytes guid was shifted in WriteTemplate() to make it dword-aligned
Assert(i < Count(tcompObjectInfo));
// Get name from start of object-info
ByteRangeFromPb(pbObjectInfo, brName);
Assert(!brName.IsNull());
// Advance ptr past name
// length of prefix + length of name + NULL
pbObjectInfo += (sizeof(UINT) + (*pbObjectInfo) + 1);
// Get clsid - it will be on the next DWORD boundary
cbAlignment = (UINT)(((DWORD_PTR) pbObjectInfo) % sizeof(DWORD));
if(cbAlignment > 0)
pbObjectInfo += (sizeof(DWORD) - cbAlignment);
*pClsid = *(CLSID*)pbObjectInfo;
pbObjectInfo += sizeof(CLSID);
// Get scope
*pcsScope = *(CompScope*)pbObjectInfo;
pbObjectInfo += sizeof(CompScope);
// Get model
*pcmModel = *(CompModel*)pbObjectInfo;
pbObjectInfo += sizeof(CompModel);
*ppszObjectName = (LPSTR)brName.m_pb;
return S_OK;
}
/* ============================================================================
CTemplate::GetHTMLBlock
Returns i-th HTML block
Parameters:
UINT i block number
LPSTR* pszHTML [out] html text
ULONG* pcbHTML [out] html text length
ULONG* pcbSrcOffs [out] offset in the source file
LPSTR* pszSrcIncFile [out] include source file name
Returns:
Nothing
Side effects:
None
*/
HRESULT
CTemplate::GetHTMLBlock
(
UINT i,
LPSTR* pszHTML,
ULONG* pcbHTML,
ULONG* pcbSrcOffs,
LPSTR* pszSrcIncFile
)
{
Assert(i < Count(tcompHTMLBlock));
// this was added due to user attempt to access the method with an invalid array offset
//
if ( i >= Count(tcompHTMLBlock) )
return E_FAIL;
// get address of the block start in template memory
BYTE *pbBlock = GetAddress(tcompHTMLBlock, (USHORT)i);
Assert(pbBlock);
// retrieve the byte range of the html code
CByteRange brHTML;
ByteRangeFromPb(pbBlock, brHTML);
*pszHTML = (LPSTR)brHTML.m_pb;
*pcbHTML = brHTML.m_cb;
// advance to the source offset
pbBlock += sizeof(ULONG); // skip prefix
pbBlock += brHTML.m_cb+1; // skip html bytes (incl. '\0')
// Add byte aligment which is done in ByteAlignOffset()
if ((reinterpret_cast<ULONG_PTR>(pbBlock)) & 3)
pbBlock = reinterpret_cast<BYTE *>((reinterpret_cast<ULONG_PTR>(pbBlock) + 4) & ~3);
*pcbSrcOffs = *((ULONG*)pbBlock);
// advance to the source name length
pbBlock += sizeof(ULONG); // skip source offset prefix
ULONG cbSrcIncFile = *((ULONG *)pbBlock); // inc file name length
pbBlock += sizeof(ULONG); // skip inc file name length
*pszSrcIncFile = (cbSrcIncFile > 0) ? (LPSTR)pbBlock : NULL;
return S_OK;
}
/* ============================================================================
CTemplate::GetScriptSourceInfo
Returns line number and source file name a given target line in a given script engine.
Returns
line number and source file name (as out-parameters)
Side effects:
None
*/
void
CTemplate::GetScriptSourceInfo
(
UINT idEngine, // script engine id
int iTargetLine, // target line number
LPTSTR* pszPathInfo, // ptr to source file virtual path (out-parameter)
LPTSTR* pszPathTranslated, // ptr to source file real path (out-parameter)
ULONG* piSourceLine, // ptr to source line number (out-parameter)
ULONG* pichSourceLine, // ptr to source file offset (out-parameter)
BOOLB* pfGuessedLine // ptr to flag: did we guess the source line?
)
{
// Initialize some out parameters
if (pszPathInfo)
*pszPathInfo = _T("?"); // In case we don't ever find the path
if (pszPathTranslated)
*pszPathTranslated = _T("?"); // In case we don't ever find the path
if (piSourceLine)
*piSourceLine = 0;
if (pichSourceLine)
*pichSourceLine = 0;
if (pfGuessedLine)
*pfGuessedLine = FALSE;
if (iTargetLine <=0)
{
return;
}
// CHANGE: The rgSourceInfo array is now ZERO based. Decrement target line
// to convert.
--iTargetLine;
// CONSIDER: Make these assertions?
if(!m_rgrgSourceInfos)
return;
if(idEngine > (m_cScriptEngines - 1)) // bug 375: check vs. array bound
return;
if(size_t(iTargetLine) >= m_rgrgSourceInfos[idEngine].length()) // bug 375: check vs. array bound
return;
vector<CSourceInfo> *prgSourceInfos = &m_rgrgSourceInfos[idEngine];
// bug 379: move backwards through target lines, starting with the caller's, until we find one whose
// fIsHTML flag is false. this handles the case where vbs flags a manufactured line as in error;
// we assume the actual error occurred at the most recent authored line
while (iTargetLine >= 0 && (*prgSourceInfos)[iTargetLine].m_fIsHTML)
{
--iTargetLine;
if (pfGuessedLine)
*pfGuessedLine = TRUE;
}
if (iTargetLine >= 0)
{
if (pszPathInfo && (*prgSourceInfos)[iTargetLine].m_pfilemap != NULL)
*pszPathInfo = (*prgSourceInfos)[iTargetLine].m_pfilemap->m_szPathInfo;
if (pszPathTranslated && (*prgSourceInfos)[iTargetLine].m_pfilemap != NULL)
*pszPathTranslated = (*prgSourceInfos)[iTargetLine].m_pfilemap->m_szPathTranslated;
if (piSourceLine)
*piSourceLine = (*prgSourceInfos)[iTargetLine].m_idLine;
if (pichSourceLine)
*pichSourceLine = (*prgSourceInfos)[iTargetLine].m_cchSourceOffset;
}
}
/* ============================================================================
CTemplate::GetPositionOfLine
Get the character offset of a line of source
(Debugger API Extended to specify a filemap)
*/
HRESULT
CTemplate::GetPositionOfLine
(
CFileMap *pFilemap,
ULONG cLineNumber,
ULONG *pcCharacterPosition
)
{
// NOTE:
// The table is not binary-searchable because include files
// will start a new line ordering
//
// Algorithm:
//
// Find the largest source line N across all engines, such that
// N <= cLineNumber and the line corresponds to an line
// in the appropriate file.
//
CSourceInfo *pSourceInfoLE = NULL;
++cLineNumber; // Convert zero-based line # to one-based
// Find the correct offset
for (unsigned idEngine = 0; idEngine < m_cScriptEngines; ++idEngine)
{
vector<CSourceInfo> *prgSourceInfos = &m_rgrgSourceInfos[idEngine];
// Loop through all lines EXCEPT the EOF line
for (unsigned j = 0; j < prgSourceInfos->length() - 1; ++j)
{
CSourceInfo *pSourceInfo = &(*prgSourceInfos)[j];
if (pFilemap == pSourceInfo->m_pfilemap &&
pSourceInfo->m_idLine <= cLineNumber &&
(pSourceInfoLE == NULL || pSourceInfo->m_idLine > pSourceInfoLE->m_idLine))
{
pSourceInfoLE = pSourceInfo;
}
}
}
// We had better be able to map all line numbers to offsets, unless they passed a bogus line
// (in which case we still find an offset)
//
Assert (pSourceInfoLE != NULL);
if (pSourceInfoLE == NULL) {
return E_FAIL;
}
*pcCharacterPosition = pSourceInfoLE->m_cchSourceOffset;
#if 0
IF_DEBUG(SCRIPT_DEBUGGER)
{
wchar_t wszSourceText[SNIPPET_SIZE + 1], wszTargetText[SNIPPET_SIZE + 1], wszDebugMessage[256];
GetScriptSnippets(
pSourceInfoLE->m_cchSourceOffset, pSourceInfoLE->m_pfilemap,
0, 0,
wszSourceText, NULL
);
DBGPRINTF((
DBG_CONTEXT,
"Source Line %d corresponds to source offset %d (Text: \"%S\")\n",
cLineNumber - 1, pSourceInfoLE->m_cchSourceOffset,
wszSourceText
));
}
#endif
return S_OK;
}
/* ============================================================================
CTemplate::GetLineOfPosition
Get the line # & offset in line of an arbitrary character offset in source
(Debugger API Extended to specify a filemap)
*/
HRESULT CTemplate::GetLineOfPosition
(
CFileMap *pFilemap,
ULONG cCharacterPosition,
ULONG *pcLineNumber,
ULONG *pcCharacterOffsetInLine
)
{
// FAIL if source offset totally off-base
if (cCharacterPosition >= pFilemap->m_cChars)
return E_FAIL;
// NOTE:
// The table is not binary-searchable because include files
// will start a new line ordering
//
// Algorithm:
//
// Find the largest source line N across all engines, such that
// N <= cLineNumber and the line corresponds to an line
// in the appropriate file.
//
CSourceInfo *pSourceInfoLE = NULL;
// Find the correct offset
for (unsigned idEngine = 0; idEngine < m_cScriptEngines; ++idEngine)
{
vector<CSourceInfo> *prgSourceInfos = &m_rgrgSourceInfos[idEngine];
// Loop through all lines EXCEPT the EOF line
for (unsigned j = 0; j < prgSourceInfos->length() - 1; ++j)
{
CSourceInfo *pSourceInfo = &(*prgSourceInfos)[j];
if (pFilemap == pSourceInfo->m_pfilemap &&
pSourceInfo->m_cchSourceOffset <= cCharacterPosition &&
(pSourceInfoLE == NULL || pSourceInfo->m_cchSourceOffset > pSourceInfoLE->m_cchSourceOffset))
{
pSourceInfoLE = pSourceInfo;
}
}
}
// We had better be able to map all offsets to line numbers, unless they passed a bogus offset
// (in which case we still find a line #, but may go out of range for the offset in line.
// That case is handled later)
//
Assert (pSourceInfoLE != NULL);
if (pSourceInfoLE == NULL) {
return E_FAIL;
}
*pcLineNumber = pSourceInfoLE->m_idLine - 1; // Convert to zero-based line #
*pcCharacterOffsetInLine = cCharacterPosition - pSourceInfoLE->m_cchSourceOffset;
#if 0
IF_DEBUG(SCRIPT_DEBUGGER)
{
wchar_t wszSourceText[SNIPPET_SIZE + 1], wszTargetText[SNIPPET_SIZE + 1], wszDebugMessage[256];
GetScriptSnippets(
pSourceInfoLE->m_cchSourceOffset, pSourceInfoLE->m_pfilemap,
0, 0,
wszSourceText, NULL
);
DBGPRINTF((
DBG_CONTEXT,
"Source offset %d corresponds to source line %d (Text: \"%S\")\n",
pSourceInfoLE->m_cchSourceOffset, *pcLineNumber,
wszSourceText
));
}
DBGPRINTF((
DBG_CONTEXT,
"Source offset %d corresponds to source line %d (Text: \"%S\")\n",
pSourceInfoLE->m_cchSourceOffset, *pcLineNumber,
wszSourceText
));
}
#endif
return S_OK;
}
/* ============================================================================
CTemplate::GetSourceOffset
Convert a character offset relative to the target script to the appropriate
offset in the source.
NOTE: offsets in the middle of a target line are converted to the
offset relative to the beginning of source line - NOT to the
precise source offset.
this is OK because debugger ultimately wants the offset of the
beginning of line. It is a lot of work to do the precise conversion
due to the translation of "=" to Response.Write & HTML to
Response.WriteBlock
Also, because of these translations, we return the length of the segment
calculated during compilation, and throw away the length the scripting
engine sent to us.
*/
void
CTemplate::GetSourceOffset
(
ULONG idEngine,
ULONG cchTargetOffset,
TCHAR **pszSourceFile,
ULONG *pcchSourceOffset,
ULONG *pcchSourceText
)
{
Assert (idEngine < m_cScriptEngines);
vector<CSourceInfo> *prgSourceInfos = &m_rgrgSourceInfos[idEngine];
// Find the closest offset in the source
// This is the largest target offset N, such that N <= cchTargetOffset
CSourceInfo *pSourceInfo;
GetBracketingPair(
cchTargetOffset, // value to search for
prgSourceInfos->begin(), prgSourceInfos->end(), // array to search
CTargetOffsetOrder(), // ordering predicate
&pSourceInfo, static_cast<CSourceInfo **>(NULL) // return values
);
// Since the first offset is zero, which is less than all other conceivable offsets,
// the offset must have been found or else there is a bug.
Assert (pSourceInfo != NULL);
Assert (cchTargetOffset >= pSourceInfo->m_cchTargetOffset);
#if 0
IF_DEBUG(SCRIPT_DEBUGGER)
{
wchar_t wszSourceText[SNIPPET_SIZE + 1], wszTargetText[SNIPPET_SIZE + 1], wszDebugMessage[256];
GetScriptSnippets(
pSourceInfo->m_cchSourceOffset, pSourceInfo->m_pfilemap,
cchTargetOffset, idEngine,
wszSourceText, wszTargetText
);
DBGPRINTF((
DBG_CONTEXT,
"Target offset %d (Text: \"%S\") corresponds to source offset %d (Text: \"%S\") (Length is %d)\n",
cchTargetOffset, wszTargetText,
pSourceInfo->m_cchSourceOffset, wszSourceText,
pSourceInfo->m_cchSourceText
));
}
#endif
*pszSourceFile = pSourceInfo->m_pfilemap->m_szPathTranslated;
*pcchSourceOffset = pSourceInfo->m_cchSourceOffset;
*pcchSourceText = pSourceInfo->m_cchSourceText;
}
/* ============================================================================
CTemplate::GetTargetOffset
Convert a character offset relative to the source script to the appropriate
offset in the target.
Returns:
TRUE - source offset corresponds to script
FALSE - source offset corresponds to HTML
NOTES:
1. This function is very slow. consider caching the value of this function
(The CTemplateDocumentContext class does this.)
2. This function returns the source offset in the master include file -
if the target offset corresponds to an offset in a header file, then
the offset to the #include line in the source is returned.
3. offsets in the middle of a target line are converted to the
offset relative to the beginning of source line - NOT to the
precise source offset.
this is OK because the debugger ultimately wants the offset of the
beginning of line. It is a lot of work to do the precise conversion
due to the translation of "=" to Response.Write & HTML to
Response.WriteBlock
CONSIDER:
Figure out a better way to do this
*/
BOOL CTemplate::GetTargetOffset
(
TCHAR *szSourceFile,
ULONG cchSourceOffset,
/* [out] */ ULONG *pidEngine,
/* [out] */ ULONG *pcchTargetOffset
)
{
// NOTE:
// The table is not binary-searchable because of two factors:
// 1. Include files will start a new line ordering
// 2. For engine 0, tagged scripts will be re-arranged in
// the target code to reside after all primary script in
// engine 0.
//
// Algorithm:
//
// Find the largest source offset N across all engines, such that
// N <= cchSourceOffset and the offset corresponds to an offset
// in the appropriate file.
//
CSourceInfo *pSourceInfoLE = NULL;
unsigned idEngineLE = 0;
// Find the correct offset
for (unsigned idEngine = 0; idEngine < m_cScriptEngines; ++idEngine)
{
vector<CSourceInfo> *prgSourceInfos = &m_rgrgSourceInfos[idEngine];
// Loop through all lines EXCEPT the EOF line
for (unsigned j = 0; j < prgSourceInfos->length() - 1; ++j)
{
CSourceInfo *pSourceInfo = &(*prgSourceInfos)[j];
if (_tcscmp(pSourceInfo->m_pfilemap->m_szPathTranslated, szSourceFile) == 0 &&
pSourceInfo->m_cchSourceOffset <= cchSourceOffset &&
(pSourceInfoLE == NULL || pSourceInfo->m_cchSourceOffset > pSourceInfoLE->m_cchSourceOffset))
{
pSourceInfoLE = pSourceInfo;
idEngineLE = idEngine;
}
}
}
// There won't be a valid offset in the case where there is no
// code corresponding to the first line in the file (this only
// occurs when the first line is whitespace, because there is no
// corresponding "Response.WriteBlock" call there)
//
// In that case, return FALSE, which will cause the caller to fail
//
if (pSourceInfoLE == NULL)
{
*pidEngine = 0;
*pcchTargetOffset = 0;
return FALSE;
}
*pidEngine = idEngineLE;
*pcchTargetOffset = pSourceInfoLE->m_cchTargetOffset;
#if 0
IF_DEBUG(SCRIPT_DEBUGGER)
{
wchar_t wszSourceText[SNIPPET_SIZE + 1], wszTargetText[SNIPPET_SIZE + 1], wszDebugMessage[256];
GetScriptSnippets(
cchSourceOffset, pSourceInfoLE->m_pfilemap,
*pcchTargetOffset, *pidEngine,
wszSourceText, wszTargetText
);
DBGPRINTF((
DBG_CONTEXT,
"Source offset %d (Text: \"%S\") corresponds to target offset %d (Text: \"%S\")\n",
cchSourceOffset, wszSourceText,
*pcchTargetOffset, wszTargetText
));
}
#endif
return !pSourceInfoLE->m_fIsHTML;
}
/* ============================================================================
CTemplate::GetActiveScript
Return a cached script from the template - only used in debug mode
*/
CActiveScriptEngine *CTemplate::GetActiveScript(ULONG idEngine)
{
if (m_rgpDebugScripts == NULL)
return NULL;
else
{
Assert (idEngine < m_cScriptEngines);
CActiveScriptEngine *pEng = m_rgpDebugScripts[idEngine];
if (pEng)
pEng->AddRef();
return pEng;
}
}
/* ============================================================================
CTemplate::AddScript
add an active script to the template object
*/
HRESULT CTemplate::AddScript(ULONG idEngine, CActiveScriptEngine *pScriptEngine)
{
if (m_rgpDebugScripts == NULL)
{
if (
(m_rgpDebugScripts = new CActiveScriptEngine *[m_cScriptEngines])
== NULL
)
{
return E_OUTOFMEMORY;
}
memset(m_rgpDebugScripts, 0, m_cScriptEngines * sizeof(CActiveScriptEngine *));
}
Assert (idEngine < m_cScriptEngines);
CActiveScriptEngine **ppScriptElem = &m_rgpDebugScripts[idEngine];
if (*ppScriptElem != NULL)
(*ppScriptElem)->Release();
*ppScriptElem = pScriptEngine;
pScriptEngine->AddRef();
// Initialize the script engine now (is currently uninitialized)
// so that the debugger user can set breakpoints.
IActiveScript *pActiveScript = pScriptEngine->GetActiveScript();
HRESULT hr;
TRY
hr = pActiveScript->SetScriptSite(static_cast<IActiveScriptSite *>(pScriptEngine));
CATCH(nExcept)
HandleErrorMissingFilename(IDE_SCRIPT_ENGINE_GPF,
NULL,
TRUE,
nExcept,
"IActiveScript::SetScriptSite()",
"CTemplate::AddScript()");
hr = nExcept;
END_TRY
if (FAILED(hr))
{
*ppScriptElem = NULL;
return E_FAIL;
}
TRY
hr = pActiveScript->SetScriptState(SCRIPTSTATE_INITIALIZED);
CATCH(nExcept)
HandleErrorMissingFilename(IDE_SCRIPT_ENGINE_GPF,
NULL,
TRUE,
nExcept,
"IActiveScript::SetScriptState()",
"CTemplate::AddScript()");
hr = nExcept;
END_TRY
if (FAILED(hr))
return E_FAIL;
return S_OK;
}
/* ============================================================================
CTemplate::AppendMapFile
Appends a filemap to the workstore and memory-maps its file
Returns:
Nothing
Side effects:
Allocates memory; throws exception on error
*/
void
CTemplate::AppendMapFile
(
LPCTSTR szFileSpec, // file spec for this file
CFileMap* pfilemapCurrent, // ptr to filemap of parent file
BOOLB fVirtual, // is file spec virtual or relative?
CHitObj* pHitObj, // ptr to template's hit object
BOOLB fGlobalAsa // is this file the global.asa file?
)
{
// alloc or realloc as needed
if(m_cFilemaps++ == 0)
m_rgpFilemaps = (CFileMap**) CTemplate::SmallMalloc(sizeof(CFileMap*));
else
m_rgpFilemaps = (CFileMap**) CTemplate::SmallReAlloc(m_rgpFilemaps, m_cFilemaps * sizeof(CFileMap*));
if(NULL == m_rgpFilemaps)
THROW(E_OUTOFMEMORY);
if(NULL == (m_rgpFilemaps[m_cFilemaps - 1] = new CFileMap))
THROW(E_OUTOFMEMORY);
// map the file
m_rgpFilemaps[m_cFilemaps - 1]->MapFile(
szFileSpec,
m_szApplnVirtPath,
pfilemapCurrent,
fVirtual,
pHitObj,
fGlobalAsa
);
}
/* ============================================================================
CTemplate::GetSegmentsFromFile
Gets source segments from a source file by calling ExtractAndProcessSegment
until there are no more segments; populates WorkStore with info on source segments.
Returns:
Nothing
Side effects:
None
*/
void
CTemplate::GetSegmentsFromFile
(
CFileMap& filemap, // this file's file map
CWorkStore& WorkStore, // working storage for source segments
CHitObj* pHitObj, // Browser request object
BOOL fIsHTML
)
{
CByteRange brSearch; // byte range to search for source segments
_TOKEN rgtknOpeners[TOKEN_OPENERS_MAX]; // array of permitted open tokens
UINT ctknOpeners; // count of permitted open tokens
SOURCE_SEGMENT ssegThisFile = ssegHTML; // Either HTML or <SCRIPT> segment
BOOL fPrevCodePageSet = FALSE;
UINT wPrevCodePage;
// init search range to all of file - NOTE we ignore high dword of file size
brSearch.m_pb = filemap.m_pbStartOfFile;
brSearch.m_cb = filemap.GetSize();
if (fIsHTML)
{
// populate array of permitted open tokens
ctknOpeners = 4;
rgtknOpeners[0] = CTokenList::tknOpenPrimaryScript;
rgtknOpeners[1] = CTokenList::tknOpenTaggedScript;
rgtknOpeners[2] = CTokenList::tknOpenObject;
rgtknOpeners[3] = CTokenList::tknOpenHTMLComment;
}
else
{
ctknOpeners = 1;
rgtknOpeners[0] = CTokenList::tknOpenHTMLComment;
ssegThisFile = ssegTaggedScript;
}
TRY
if ((brSearch.m_cb >= 2)
&& (((brSearch.m_pb[0] == 0xff) && (brSearch.m_pb[1] == 0xfe))
|| ((brSearch.m_pb[0] == 0xfe) && (brSearch.m_pb[1] == 0xff)))) {
ThrowError(brSearch.m_pb,IDE_TEMPLATE_UNICODE_NOTSUP);
return;
}
// check for the UTF-8 BOM mark. If present, then treat this similar to
// seeing @CODEPAGE=65001. Note that previous values are retained in the
// event that there are differing @CODEPAGE settings. This probably should
// be an error in itself, but I can imagine that this might break a lot of
// apps as more and more UTF8 files are put into use.
if ((brSearch.m_cb >= 3)
&& (brSearch.m_pb[0] == 0xEF)
&& (brSearch.m_pb[1] == 0xBB)
&& (brSearch.m_pb[2] == 0xBF)) {
pHitObj->SetCodePage(65001);
fPrevCodePageSet = m_fCodePageSet;
wPrevCodePage = m_wCodePage;
m_fCodePageSet = TRUE;
m_wCodePage = 65001;
brSearch.Advance(3);
}
// Process source segments until we run out of them, i.e. until search segment is empty
// NOTE we pass current filemap as 'parent file' to ExtractAndProcessSegment
// NOTE ExtractAndProcessSegment appends source segments to WorkStore, advancing brSearch as it goes
while(!brSearch.IsNull())
ExtractAndProcessSegment(
brSearch,
ssegThisFile,
rgtknOpeners,
ctknOpeners,
&filemap,
WorkStore,
pHitObj,
ssegThisFile == ssegTaggedScript,
fIsHTML
);
CATCH(hrException)
/*
NOTE we indicate 'generic error' by m_idErrMsg == 0; this happens as we move
up the 'include file stack' after processing a specific error (m_idErrMsg != 0).
Only the specific error is processed; generic error, we simply re-throw exception.
*/
if(m_idErrMsg != 0)
{
// process specific error
ProcessSpecificError(filemap, pHitObj);
// reset err message so next msg will be generic as we move up the stack
m_idErrMsg = 0;
}
THROW(hrException);
END_TRY
if (fPrevCodePageSet){
m_wCodePage = wPrevCodePage;
pHitObj->SetCodePage(wPrevCodePage);
}
}
#define SZ_REG_LANGUAGE_ENGINES "SYSTEM\\CurrentControlSet\\Services\\W3SVC\\ASP\\LanguageEngines\\"
/* ============================================================================
CTemplate::GetLanguageEquivalents
Gets the "Write", "WriteBlock", etc. equivalents from registry for primary scripting language
Returns
Nothing
Side effects
Throws on error
*/
void
CTemplate::GetLanguageEquivalents
(
)
{
CByteRange brPrimaryEngine;
m_pWorkStore->m_ScriptStore.m_bufEngineNames.GetItem(0, brPrimaryEngine); // 0-th engine is primary
// if the primary language is one of the big two, return; we don't need to look up equivalents
if(brPrimaryEngine.FMatchesSz("VBScript"))
return;
if(brPrimaryEngine.FMatchesSz("JScript"))
return;
if(brPrimaryEngine.FMatchesSz("JavaScript"))
return;
if(brPrimaryEngine.FMatchesSz("LiveScript"))
return;
/* query the registry; language equivalents are stored in:
HKEY_LOCAL_MACHINE
key: SYSTEM
key: CurrentControlSet
key: Services
key: W3SVC
key: ASP
key: LanguageEngines
key: <LanguageName>
value: Write data: <replacement syntax for Response.Write(|)>
value: WriteBlock data: <replacement syntax for Response.WriteBlock(|)>
*/
STACK_BUFFER( tempRegKeyPath, 512 );
UINT cchRegKeyPath = strlen(SZ_REG_LANGUAGE_ENGINES);
if (!tempRegKeyPath.Resize(cchRegKeyPath + brPrimaryEngine.m_cb + 1)) {
SetLastError(E_OUTOFMEMORY);
return;
}
LPSTR szRegKeyPath = static_cast<LPSTR> (tempRegKeyPath.QueryPtr());
LPSTR pch = szRegKeyPath;
strcpy(pch, SZ_REG_LANGUAGE_ENGINES);
pch += cchRegKeyPath;
strncpy(pch, (const char *) brPrimaryEngine.m_pb, brPrimaryEngine.m_cb);
pch += brPrimaryEngine.m_cb;
*pch = '\0';
HANDLE hKeyScriptLanguage; // handle of script language reg key
if(ERROR_SUCCESS == RegOpenKeyExA(
HKEY_LOCAL_MACHINE, // handle constant
(const char*) szRegKeyPath, // LPCSTR lpSubKey subkey to open
0, // DWORD ulOptions reserved; must be zero
KEY_QUERY_VALUE, // REGSAM samDesired security access mask
(PHKEY) &hKeyScriptLanguage // PHKEY phkResult address of handle of open key
))
{
SetLanguageEquivalent(hKeyScriptLanguage, "Write", &(m_pWorkStore->m_szWriteOpen), &m_pWorkStore->m_cchWriteOpen, &(m_pWorkStore->m_szWriteClose), &m_pWorkStore->m_cchWriteClose);
SetLanguageEquivalent(hKeyScriptLanguage, "WriteBlock", &(m_pWorkStore->m_szWriteBlockOpen), &m_pWorkStore->m_cchWriteBlockOpen, &(m_pWorkStore->m_szWriteBlockClose), &m_pWorkStore->m_cchWriteBlockClose);
RegCloseKey((HKEY) hKeyScriptLanguage);
}
}
/* ============================================================================
CTemplate::SetLanguageEquivalent
Sets a "language equivalent" from the registry.
Returns:
language item opener and closer as out-parameters
Ex: "Response.Write(" and ")"
Side effects:
Throws on error
*/
void
CTemplate::SetLanguageEquivalent
(
HANDLE hKeyScriptLanguage, // reg key
LPSTR szLanguageItem, // reg value name - "Write", "WriteBlock", etc.
LPSTR* pszOpen, // ptr to language item opener, e.g. "Response.Write(" (out-parameter)
UINT* pcchOpen, // Length for the Open Token
LPSTR* pszClose, // ptr to language item closer, e.g. ")" (out-parameter)
UINT* pcchClose // Length for the Close Token
)
{
LONG lError;
DWORD cbSyntax;
LPSTR szSyntax;
char* pchInsert;
UINT cchOpen;
UINT cchClose;
// query registry to get buffer size
lError = RegQueryValueExA(
(HKEY) hKeyScriptLanguage, // handle of key to query
szLanguageItem, // name of value to query
NULL, // reserved; must be NULL
NULL, // ptr to value type; not required
NULL, // ptr to data buffer
&cbSyntax // ptr to data buffer size
);
if(ERROR_FILE_NOT_FOUND == lError)
// if we don't find szLanguageItem in registry, return silently, leaving *pszOpen and *pszClose unchanged
return;
else if((ERROR_MORE_DATA != lError) && (ERROR_SUCCESS != lError))
THROW(lError);
Assert(cbSyntax > 0);
// allocate buffer and re-query registry to get syntax string
// NOTE RegQueryValueEx returns cbSyntax that includes room for '\0' terminator
STACK_BUFFER(tempSyntax, 64);
if (!tempSyntax.Resize(cbSyntax)) {
THROW(E_OUTOFMEMORY);
}
szSyntax = static_cast<LPSTR> (tempSyntax.QueryPtr());
lError = RegQueryValueExA(
(HKEY) hKeyScriptLanguage, // handle of key to query
szLanguageItem, // name of value to query
NULL, // reserved; must be NULL
NULL, // ptr to value type; not required
(LPBYTE) szSyntax, // ptr to data buffer
&cbSyntax // ptr to data buffer size
);
/* NOTE there is the slight possibility of ERROR_FILE_NOT_FOUND or ERROR_MORE_DATA
if the registry value was deleted or changed between the first and second calls to RegQueryValueEx.
Since this occurs with vanishingly small probability, we throw (instead of coding the re-try logic).
*/
if(ERROR_SUCCESS != lError)
THROW(lError);
pchInsert = szSyntax;
while(*pchInsert != '|' && *pchInsert != '\0')
pchInsert++;
cchOpen = DIFF(pchInsert - szSyntax);
cchClose = *pchInsert == '|'
? cbSyntax - cchOpen - 2 // found insert symbol: deduct 2 chars, 1 for insert symbol, 1 for '\0'
: cbSyntax - cchOpen - 1; // didn't find insert symbol: deduct 1 char for '\0'
Assert(FImplies(cchOpen == 0, *szSyntax == '|'));
Assert(FImplies(*pchInsert == '\0', cchClose == 0));
if(cchOpen == 0)
// opener is empty - set caller's opener ptr null
*pszOpen = NULL;
else if(cchOpen > 0)
{
// opener is non-empty - set caller's opener to opener in registry
if(NULL == (*pszOpen = (LPSTR) CTemplate::SmallMalloc(cchOpen + 1)))
THROW(E_OUTOFMEMORY);
strncpy(*pszOpen, szSyntax, cchOpen);
(*pszOpen)[cchOpen] = '\0';
}
if(cchClose == 0)
// closer is empty - set caller's closer ptr null
*pszClose = NULL;
else if(cchClose > 0)
{
// closer is non-empty - set caller's closer to closer in registry
if(NULL == (*pszClose = (LPSTR) CTemplate::SmallMalloc(cchClose + 1)))
THROW(E_OUTOFMEMORY);
strncpy(*pszClose, (pchInsert + 1), cchClose);
(*pszClose)[cchClose] = '\0';
}
*pcchOpen = cchOpen;
*pcchClose = cchClose;
}
/* ============================================================================
CTemplate::ThrowError
Sets up for processing a compile failure.
Returns:
Nothing
Side effects:
Throws error
*/
void
CTemplate::ThrowError
(
BYTE* pbErrorLocation, // ptr to error location in source file
UINT idErrMsg // error id
)
{
m_pbErrorLocation = pbErrorLocation;
m_idErrMsg = idErrMsg;
// bug 80745: always throw compile-failed-don't-cache
THROW(E_TEMPLATE_COMPILE_FAILED_DONT_CACHE);
}
/* ============================================================================
CTemplate::AppendErrorMessageInsert
Appends an error message insert to member array.
Returns:
Nothing
Side effects:
Appends to inserts array
*/
void
CTemplate::AppendErrorMessageInsert
(
BYTE* pbInsert, // ptr to insert
UINT cbInsert // length of insert
)
{
if (m_ppszMsgInserts == NULL)
{
m_ppszMsgInserts = new char*;
m_cMsgInserts = 0;
if (m_ppszMsgInserts == NULL)
return;
}
m_ppszMsgInserts[m_cMsgInserts] = new char[cbInsert + 1];
if (m_ppszMsgInserts[m_cMsgInserts] == NULL)
return;
strncpy(m_ppszMsgInserts[m_cMsgInserts], (const char*)pbInsert, cbInsert);
m_ppszMsgInserts[m_cMsgInserts++][cbInsert] = NULL;
}
/* ============================================================================
CTemplate::ThrowErrorSingleInsert
Appends a single message insert to member array and throws a compile error.
Returns:
Nothing
Side effects:
Throws error indirectly
*/
void
CTemplate::ThrowErrorSingleInsert
(
BYTE* pbErrorLocation, // ptr to error location in source file
UINT idErrMsg, // error id
BYTE* pbInsert, // ptr to insert
UINT cbInsert // length of insert
)
{
AppendErrorMessageInsert(pbInsert, cbInsert);
ThrowError(pbErrorLocation, idErrMsg);
}
/* ============================================================================
CTemplate::ProcessSpecificError
Processes a specific compile failure.
Returns:
Nothing
Side effects:
None
*/
void
CTemplate::ProcessSpecificError
(
CFileMap& filemap, // source file map
CHitObj* pHitObj // Browser request object
)
{
// no error msg for generic failures
if(m_idErrMsg == E_FAIL || m_idErrMsg == E_OUTOFMEMORY)
return;
HandleCTemplateError(
&filemap,
m_pbErrorLocation,
m_idErrMsg,
m_cMsgInserts,
m_ppszMsgInserts,
pHitObj
);
}
/* ============================================================================
CTemplate::ShowErrorInDebugger
Display a runtime error by invoking the JIT debugger
Returns:
failure if debugger won't start
Side effects:
None.
*/
HRESULT
CTemplate::ShowErrorInDebugger
(
CFileMap* pfilemap,
UINT cchErrorLocation,
char* szDescription,
CHitObj *pHitObj,
BOOL fAttachDocument
)
{
HRESULT hr = S_OK;
char szDebugTitle[64];
if (pfilemap == NULL || szDescription == NULL || pHitObj == NULL)
return E_POINTER;
// Create a new document context for this statement
// CONSIDER: character count that we return is bogus - however our debugging
// client (Caesar's) does not use this information anyway.
//
CTemplateDocumentContext *pDebugContext = new CTemplateDocumentContext(this, cchErrorLocation, 1);
if (pDebugContext == NULL)
return E_OUTOFMEMORY;
// Make sure debug document is attached to debugger
if (fAttachDocument)
AttachTo(pHitObj->PAppln());
// Yes it does, bring up the debugger on this line
hr = InvokeDebuggerWithThreadSwitch(g_pDebugApp, DEBUGGER_UI_BRING_DOC_CONTEXT_TO_TOP, pDebugContext);
if (FAILED(hr))
goto LExit;
// Load the compiler message string
CchLoadStringOfId(IDE_TEMPLATE_ERRMSG_TITLE, szDebugTitle, sizeof szDebugTitle);
// pop up a message box with the error description
MessageBoxA(NULL, szDescription, szDebugTitle, MB_SERVICE_NOTIFICATION | MB_TOPMOST | MB_OK | MB_ICONEXCLAMATION);
LExit:
if (pDebugContext)
pDebugContext->Release();
return hr;
}
/* ============================================================================
CTemplate::HandleCTemplateError
Handles template compilation errors
Returns:
Nothing
Side effects:
None.
*/
void
CTemplate::HandleCTemplateError
(
CFileMap* pfilemap, // ptr to source file map
BYTE* pbErrorLocation, // ptr to source location where error occurred
UINT idErrMsg, // error message id
UINT cMsgInserts, // count of insert strings for error msg
char** ppszMsgInserts, // array of ptrs to error msg insert strings
CHitObj* pHitObj // Browser Request
)
{
char szErrMsgPattern[MAX_RESSTRINGSIZE]; // error message pattern
CHAR szLineNum[12];
TCHAR szFileName[512];
CHAR szShortDes[256];
CHAR szEngine[256];
CHAR szErrCode[20];
CHAR szLongDes[MAX_RESSTRINGSIZE];
CHAR szCombinedDes[sizeof szShortDes + sizeof szLongDes]; // long & short desc
DWORD dwMask;
UINT cch;
// if request ptr or ecb ptr is null, bail; we won't be able to write error msg anyway
if(pHitObj == NULL)
return;
/* if this was a security error, process it specially and bail
NOTE security error causes exception, rather than true error id
NOTE template will be destroyed anyway in this case, so no need to maintain m_pszLastErrorMessage
*/
if(idErrMsg == E_USER_LACKS_PERMISSIONS)
{
Assert(cMsgInserts == 1);
HandleAccessFailure(pHitObj,
(m_rgpFilemaps && m_rgpFilemaps[0])? m_rgpFilemaps[0]->m_szPathTranslated : NULL);
return;
}
// get error resource message
LoadErrResString(idErrMsg, &dwMask, szErrCode, szShortDes, szLongDes);
// if we have a specific error location, construct msg prefix
if(pbErrorLocation != NULL) {
Assert(pfilemap != NULL);
// get line number of error location as string
_itoa(SourceLineNumberFromPb(pfilemap, pbErrorLocation), szLineNum, 10);
}
else {
szLineNum[0] = NULL;
}
if(pfilemap != NULL) {
cch = _tcslen(pfilemap->m_szPathInfo);
_tcsncpy(szFileName, pfilemap->m_szPathInfo, cch);
}
else {
cch = 0;
}
szFileName[cch] = '\0';
//Load Default Engine from resource
cch = CchLoadStringOfId(IDS_ENGINE, szEngine, sizeof szEngine);
szEngine[cch] = '\0';
// resolve error msg pattern and inserts into actual error msg
cch = strlen(szLongDes);
memcpy(szErrMsgPattern, szLongDes, cch);
szErrMsgPattern[cch] = '\0';
// get an idea of the possibility of a buffer overrunn
UINT dwTotalLen=0;
BOOL fTooBig = FALSE;
if (cMsgInserts) {
// allow 32 characters for space, etc.
dwTotalLen = 32 + strlen(szErrMsgPattern);
for (UINT i = 0; i < cMsgInserts; i++)
dwTotalLen += strlen(ppszMsgInserts[i]);
if (dwTotalLen > sizeof szLongDes) {
cch = CchLoadStringOfId(IDE_TOOBIG, szLongDes, sizeof szLongDes);
szLongDes[cch] = '\0';
fTooBig = TRUE;
}
}
if (!fTooBig)
GetSzFromPatternInserts(szErrMsgPattern, cMsgInserts, ppszMsgInserts, szLongDes);
// attempt to bring up debugger to display the error - if we cannot then log the error
/* Find the character offset closest to cbErrorLocation. This will be
* the place where we start looping with CharNext() to get the full
* character offset.
*
* NOTE: compilation is done in two phases.
* Errors are detected and reported in phase 1.
* The DBCS mapping is created in phase 2.
*
* Therefore, we don't have the benefit of the rgByte2DBCS table
* because it doesn't exist yet. Therefore we are left with a SLOW
* loop starting at BOF. To make things not so abysmal, we don't
* do the loop on SBCS charsets. We also don't do this conversion
* unless debugging is enabled.
*/
if (FCaesars() && pHitObj->PAppln()->FDebuggable()) {
unsigned cchErrorLocation = CharAdvDBCS(
(WORD)m_wCodePage,
reinterpret_cast<char *>(pfilemap->m_pbStartOfFile),
reinterpret_cast<char *>(pbErrorLocation),
INFINITE,
NULL);
// Create the description string
char *szEnd = strcpyExA(szCombinedDes, szShortDes);
*szEnd++ = '\n';
*szEnd++ = '\n';
strcpy(szEnd, szLongDes);
ShowErrorInDebugger(pfilemap, cchErrorLocation, szCombinedDes, pHitObj, idErrMsg != IDE_TEMPLATE_CYCLIC_INCLUDE);
}
//cache the info in case we need to use later.
m_dwLastErrorMask = dwMask;
//delay NULL check to caller who use this info.
#if UNICODE
m_pszLastErrorInfo[ILE_szFileName] = StringDupUTF8(szFileName);
#else
m_pszLastErrorInfo[ILE_szFileName] = StringDupA(szFileName);
#endif
m_pszLastErrorInfo[ILE_szLineNum] = StringDupA(szLineNum);
m_pszLastErrorInfo[ILE_szEngine] = StringDupA(szEngine);
m_pszLastErrorInfo[ILE_szErrorCode] = StringDupA(szErrCode);
m_pszLastErrorInfo[ILE_szShortDes] = StringDupA(szShortDes);
m_pszLastErrorInfo[ILE_szLongDes] = StringDupA(szLongDes);
SendToLog( m_dwLastErrorMask,
m_pszLastErrorInfo[ILE_szFileName],
m_pszLastErrorInfo[ILE_szLineNum],
m_pszLastErrorInfo[ILE_szEngine],
m_pszLastErrorInfo[ILE_szErrorCode],
m_pszLastErrorInfo[ILE_szShortDes],
m_pszLastErrorInfo[ILE_szLongDes],
pHitObj);
}
/* ============================================================================
CTemplate::FreeGoodTemplateMemory
Frees memory allocated for a 'good' (successfully compiled) template.
This includes the template itself, memory to support compile-time errors
(since the entire concatenated compile-time error message is cached in
last-err-msg member), and memory to support run-time errors (since if the
template didn't compile, it can't run).
Returns
Nothing
Side effects
None
*/
void
CTemplate::FreeGoodTemplateMemory
(
)
{
UINT i;
LargeTemplateFreeNullify((void**) &m_pbStart);
SmallTemplateFreeNullify((void**) &m_rgpSegmentFilemaps);
delete[] m_rgrgSourceInfos;
m_rgrgSourceInfos = NULL;
if(m_ppszMsgInserts)
{
for(i = 0; i < m_cMsgInserts; i++)
delete m_ppszMsgInserts[i];
delete m_ppszMsgInserts;
m_ppszMsgInserts = NULL;
}
// release the collected type libs
ReleaseTypeLibs();
// release any 449-echo-cookie objects
Release449();
}
/* ============================================================================
CTemplate::UnmapFiles
Unmaps the template's filemaps.
NOTE: we keep filemap objects around so that filenames will be available for runtime errors
Returns
Nothing
Side effects
Unmaps template's filemaps
*/
void
CTemplate::UnmapFiles
(
)
{
UINT i;
for(i = 0; i < m_cFilemaps; i++)
m_rgpFilemaps[i]->UnmapFile();
}
/*===================================================================
CTemplate::ExtractAndProcessSegment
Extracts and processes leading source segment and first contained
source segment from search range.
Returns
Nothing
Side effects
None
*/
void
CTemplate::ExtractAndProcessSegment
(
CByteRange& brSearch, // byte range to search for next segment-opening token
const SOURCE_SEGMENT& ssegLeading, // type of 'leading', i.e. pre-token, source segment
_TOKEN* rgtknOpeners, // array of permitted open tokens
UINT ctknOpeners, // count of permitted open tokens
CFileMap* pfilemapCurrent, // ptr to filemap of parent file
CWorkStore& WorkStore, // working storage for source segments
CHitObj* pHitObj, // Browser request object
BOOL fScriptTagProcessed,// has script tag been processed?
BOOL fIsHTML // are we in HTML segment?
)
{
CByteRange brLeadSegment; // byte range of leading source segment
SOURCE_SEGMENT ssegContained; // type of 'contained', i.e. post-token, source segment
CByteRange brContainedSegment; // byte range of contained source segment
_TOKEN tknOpen; // opening token
BYTE* pbTokenOpen; // ptr to opening token
_TOKEN tknClose; // closing token
BYTE* pbTokenClose; // ptr to closing token
// NOTE: If "fScriptTagProcessed" is TRUE, then "fIsHTML" must be FALSE. The reason for
// both flags is that if "fScriptTagProcessed" is FALSE, then "fIsHTML" may be either TRUE
// or FALSE (indeterminate)
//
Assert (FImplies(fScriptTagProcessed, !fIsHTML));
// If search range is empty, return
if(brSearch.IsNull())
return;
// Set ptr of leading segment to start of search segment
brLeadSegment.m_pb = brSearch.m_pb;
// get open token for contained segment
pbTokenOpen = GetOpenToken(
brSearch,
ssegLeading,
rgtknOpeners,
ctknOpeners,
&tknOpen
);
// Set count of leading segment to distance between start of search range and token
brLeadSegment.m_cb = DIFF(pbTokenOpen - brSearch.m_pb);
// Process leading segment
ProcessSegment(ssegLeading, brLeadSegment, pfilemapCurrent, WorkStore, fScriptTagProcessed, pHitObj, fIsHTML);
// If open token was 'EOF', empty out search range and return
if(tknOpen == CTokenList::tknEOF)
{
brSearch.Nullify();
return;
}
// Set contained segment type and close token based upon the opener we found
tknClose = GetComplementToken(tknOpen);
ssegContained = GetSegmentOfOpenToken(tknOpen);
if(ssegContained == ssegHTMLComment)
// for html comment segments, advance search range to open token
// NOTE keep html comment tags in segment because they must be sent to client
brSearch.Advance(DIFF(pbTokenOpen - brSearch.m_pb));
else
// for all but html comment segments, advance search range to just past open token
gm_pTokenList->MovePastToken(tknOpen, pbTokenOpen, brSearch);
// Get closing token - if none, throw error
if(NULL == (pbTokenClose = GetCloseToken(brSearch, tknClose)))
{
if(tknOpen == CTokenList::tknOpenPrimaryScript)
ThrowError(pbTokenOpen, IDE_TEMPLATE_NO_CLOSE_PSCRIPT);
else if(tknOpen == CTokenList::tknOpenTaggedScript)
ThrowError(pbTokenOpen, IDE_TEMPLATE_NO_CLOSE_TSCRIPT);
else if(tknOpen == CTokenList::tknOpenObject)
ThrowError(pbTokenOpen, IDE_TEMPLATE_NO_CLOSE_OBJECT);
else if(tknOpen == CTokenList::tknOpenHTMLComment)
ThrowError(pbTokenOpen, IDE_TEMPLATE_NO_CLOSE_HTML_COMMENT);
}
// calc contained segment
brContainedSegment.m_pb = brSearch.m_pb;
brContainedSegment.m_cb = DIFF(pbTokenClose - brSearch.m_pb);
// advance search range to just past close token
gm_pTokenList->MovePastToken(tknClose, pbTokenClose, brSearch);
// if an html comment segment, get actual segment type (e.g. might be a server-side include command)
// NOTE call may also change contained segment byte range
if(ssegContained == ssegHTMLComment)
ssegContained = SsegFromHTMLComment(brContainedSegment);
// if an html comment segment, add its close tag to contained segment
// NOTE we keep html comment tags as part of segment so we can process like any other html segment
if(ssegContained == ssegHTMLComment)
brContainedSegment.m_cb += CCH_TOKEN(tknClose);
if(ssegContained == ssegMetadata)
{
// METADATA comments are used by DESIGN time controls and we don't send
// them to the client.
// We process metadata to get to the typelib info
UINT idError = 0;
HRESULT hr = ProcessMetadataSegment(brContainedSegment, &idError, pHitObj);
if (FAILED(hr))
ThrowError(brContainedSegment.m_pb, idError);
}
else if (ssegContained == ssegFPBot)
{
}
else
{
// process contained segment
ProcessSegment(ssegContained, brContainedSegment, pfilemapCurrent, WorkStore, fScriptTagProcessed, pHitObj, fIsHTML);
}
}
/* ============================================================================
CTemplate::SsegFromHTMLComment
Determines source segment type of HTML comment.
Returns
Source segment type
Side effects
May advance segment byte range
*/
CTemplate::SOURCE_SEGMENT
CTemplate::SsegFromHTMLComment
(
CByteRange& brSegment // source segment
)
{
SOURCE_SEGMENT ssegRet = ssegHTMLComment; // return value
BYTE* pbToken; // ptr to token
if(NULL != (pbToken = gm_pTokenList->GetToken(CTokenList::tknCommandINCLUDE, brSegment, m_wCodePage)))
{
gm_pTokenList->MovePastToken(CTokenList::tknCommandINCLUDE, pbToken, brSegment);
ssegRet = ssegInclude;
}
else if(NULL != (pbToken = gm_pTokenList->GetToken(CTokenList::tknTagMETADATA, brSegment, m_wCodePage)))
{
gm_pTokenList->MovePastToken(CTokenList::tknTagMETADATA, pbToken, brSegment);
ssegRet = ssegMetadata;
}
else if(NULL != (pbToken = gm_pTokenList->GetToken(CTokenList::tknTagFPBot, brSegment, m_wCodePage)))
{
gm_pTokenList->MovePastToken(CTokenList::tknTagFPBot, pbToken, brSegment);
ssegRet = ssegFPBot;
}
return ssegRet;
}
/* ============================================================================
CTemplate::ProcessSegment
Processes a source segment based on its type.
Returns
Nothing
Side effects
None
*/
void
CTemplate::ProcessSegment
(
SOURCE_SEGMENT sseg, // segment type
CByteRange& brSegment, // segment byte range
CFileMap* pfilemapCurrent, // ptr to filemap of parent file
CWorkStore& WorkStore, // working storage for source segments
BOOL fScriptTagProcessed, // has script tag been processed?
CHitObj* pHitObj, // Browser request object
BOOL fIsHTML // Is segment in HTML block or script?
)
{
UINT idSequence; // sequence id for this segment
// if segment is entirely white space, silently return
if(FByteRangeIsWhiteSpace(brSegment))
return;
// set local sequence id and increment member
idSequence = WorkStore.m_idCurSequence++;
// Process segment based on its type
if(sseg == ssegHTML)
ProcessHTMLSegment(brSegment, WorkStore.m_bufHTMLSegments, idSequence, pfilemapCurrent);
else if(sseg == ssegHTMLComment)
ProcessHTMLCommentSegment(brSegment, pfilemapCurrent, WorkStore, pHitObj);
else if(sseg == ssegPrimaryScript || sseg == ssegTaggedScript)
ProcessScriptSegment(sseg, brSegment, pfilemapCurrent, WorkStore, idSequence, (BOOLB)!!fScriptTagProcessed, pHitObj);
else if(sseg == ssegObject)
ProcessObjectSegment(brSegment, pfilemapCurrent, WorkStore, idSequence);
else if(sseg == ssegInclude)
{
if (! fIsHTML)
ThrowError(brSegment.m_pb, IDE_TEMPLATE_BAD_SSI_COMMAND);
ProcessIncludeFile(brSegment, pfilemapCurrent, WorkStore, idSequence, pHitObj, fIsHTML);
}
// malloc/realloc array if needed
if(m_cSegmentFilemapSlots == 0)
{
m_cSegmentFilemapSlots = C_SCRIPTSEGMENTSDEFAULT + C_HTMLSEGMENTSDEFAULT;
if(NULL == (m_rgpSegmentFilemaps = (CFileMap**) CTemplate::SmallMalloc(m_cSegmentFilemapSlots * sizeof(CFileMap*))))
THROW(E_OUTOFMEMORY);
}
else if(idSequence >= m_cSegmentFilemapSlots)
{
// grab twice what we had before
m_cSegmentFilemapSlots *= 2;
if(NULL == (m_rgpSegmentFilemaps = (CFileMap**) CTemplate::SmallReAlloc(m_rgpSegmentFilemaps,
m_cSegmentFilemapSlots * sizeof(CFileMap*))))
THROW(E_OUTOFMEMORY);
}
// set filemap ptr for this segment - NOTE 'parent' filemap is also current file map
m_rgpSegmentFilemaps[idSequence] = pfilemapCurrent;
}
/* ========================================================
CTemplate::ProcessHTMLSegment
Processes an HTML segment.
Returns
Nothing
Side effects
None
*/
void
CTemplate::ProcessHTMLSegment
(
CByteRange& brHTML, // html segment
CBuffer& bufHTMLBlocks, // working storage for html blocks
UINT idSequence, // segment sequence id
CFileMap* pfilemapCurrent // current filemap
)
{
if(!(brHTML.IsNull()))
// If byte range is non-empty, store it in html buffer (non-local)
bufHTMLBlocks.Append(brHTML, FALSE, idSequence, pfilemapCurrent);
}
/* ========================================================
CTemplate::ProcessHTMLCommentSegment
Processes an HTML comment segment: within an HTML comment we
honor plain text (passed through as HTML comment) and primary script.
See bug 182 for istudio scenarios that require this behavior.
Returns
Nothing
Side effects
None
*/
void
CTemplate::ProcessHTMLCommentSegment
(
CByteRange& brSegment, // segment byte range
CFileMap* pfilemapCurrent, // ptr to filemap of parent file
CWorkStore& WorkStore, // working storage for source segments
CHitObj* pHitObj // Browser request object
)
{
_TOKEN* rgtknOpeners; // array of permitted open tokens
UINT ctknOpeners; // count of permitted open tokens
// populate array of permitted open tokens
ctknOpeners = 1;
_TOKEN tknOpeners[1];
rgtknOpeners = tknOpeners;
rgtknOpeners[0] = CTokenList::tknOpenPrimaryScript;
// Process source segments embedded within HTML comment segment
while(!brSegment.IsNull())
ExtractAndProcessSegment(
brSegment, // byte range to search for next segment-opening token
ssegHTML, // type of 'leading', i.e. pre-token, source segment
rgtknOpeners, // array of permitted open tokens
ctknOpeners, // count of permitted open tokens
pfilemapCurrent,// ptr to filemap of parent file
WorkStore, // working storage for source segments
pHitObj // Browser request object
);
}
/* ============================================================================
CTemplate::ProcessScriptSegment
Processes a script segment.
Returns
Nothing
Side effects
None
*/
void
CTemplate::ProcessScriptSegment
(
SOURCE_SEGMENT sseg, // segment type
CByteRange& brSegment, // segment byte range
CFileMap* pfilemapCurrent, // ptr to filemap of parent file
CWorkStore& WorkStore, // working storage for scripts
UINT idSequence, // segment sequence id
BOOLB fScriptTagProcessed,// has script tag been processed?
CHitObj* pHitObj // Browser request object
)
{
CByteRange brEngine; // script engine name - NOTE constructed null
if(m_fGlobalAsa)
if(sseg == ssegPrimaryScript)
// error out on primary script if we are processing global.asa
ThrowError(brSegment.m_pb, IDE_TEMPLATE_BAD_GLOBAL_PSCRIPT);
if(sseg == ssegPrimaryScript)
{
CByteRange brTemp = brSegment;
LTrimWhiteSpace(brTemp);
if(*brTemp.m_pb == '@') // CONSIDER: tknTagSetPriScriptLang
{
// impossible condition: page-level @ commands can't be allowed if they have already been executed
Assert(!(WorkStore.m_fPageCommandsAllowed && WorkStore.m_fPageCommandsExecuted));
if(!WorkStore.m_fPageCommandsAllowed)
{
if(WorkStore.m_fPageCommandsExecuted)
// error out if trying to re-execute page-level @ commands
ThrowError(brSegment.m_pb, IDE_TEMPLATE_PAGE_COMMAND_REPEATED);
else
// error out if trying to execute page-level @ commands when not allowed
ThrowError(brSegment.m_pb, IDE_TEMPLATE_PAGE_COMMAND_NOT_FIRST);
}
// if we made it here, must be allowed to execute page-level @ commands AND they have not been executed
Assert((WorkStore.m_fPageCommandsAllowed && !WorkStore.m_fPageCommandsExecuted));
/* set primary script language if required
NOTE we call GetTagName to see if LANGUAGE tag occurs in tags segment; this is somewhat wasteful,
since BrValueOfTag must simply call GetTagName again. However, this scheme is easier than changing
BrValueOfTag to return a BOOL and amending all its other callers, who don't need this info.
*/
// Flags and counters used to track and validate the @ command directive
//
int nFirstPass = 1;
int nOffset = 0;
BOOLB fTagLanguage = TRUE;
BOOLB fTagCodePage = TRUE;
BOOLB fTagLCID = TRUE;
BOOLB fTagTransacted = TRUE;
BOOLB fTagSession = TRUE;
while( GetTag( brSegment, nFirstPass) )
{
nFirstPass =2;
nOffset = 0;
if ( fTagLanguage && CompTagName( brSegment, CTokenList::tknTagLanguage ) )
{
fTagLanguage = FALSE;
brEngine = BrValueOfTag(brSegment, CTokenList::tknTagLanguage);
if ( brEngine.IsNull() )
ThrowError(brSegment.m_pb, IDE_TEMPLATE_NO_ENGINE_NAME);
// get prog lang id
PROGLANG_ID ProgLangId;
HRESULT hr = GetProgLangId(brEngine, &ProgLangId);
if(hr == TYPE_E_ELEMENTNOTFOUND)
// if prog lang not found, throw error
ThrowErrorSingleInsert(
brEngine.m_pb,
IDE_TEMPLATE_BAD_PROGLANG,
brEngine.m_pb,
brEngine.m_cb
);
else if(FAILED(hr))
// other failure: re-throw exception code
THROW(hr);
Assert(WorkStore.m_ScriptStore.CountPreliminaryEngines() >= 1);
// Set 0-th (primary) script engine to user-specified value
WorkStore.m_ScriptStore.m_bufEngineNames.SetItem(
0, // index of item to set
brEngine, // engine name
FALSE, // item is non-local
0, // sequence id (don't care)
NULL // filemap ptr (don't care)
);
// Set 0-th (primary) prog lang id to engine's
WorkStore.m_ScriptStore.m_rgProgLangId[0] = ProgLangId;
brSegment.Advance(DIFF(brEngine.m_pb - brSegment.m_pb));
}
/* set code page if required
see NOTE above for why we call we call GetTagName.
*/
else if ( fTagCodePage && CompTagName( brSegment, CTokenList::tknTagCodePage ) )
{
fTagCodePage = FALSE;
CByteRange brCodePage = BrValueOfTag( brSegment, CTokenList::tknTagCodePage );
if ( brCodePage.IsNull() )
ThrowError(brSegment.m_pb, IDE_TEMPLATE_NO_CODEPAGE);
if ( brCodePage.m_cb > 10 )
ThrowError(brSegment.m_pb, IDE_TEMPLATE_BAD_CODEPAGE);
char szCodePage[31];
strncpy( szCodePage, (char*) brCodePage.m_pb, brCodePage.m_cb );
szCodePage[ brCodePage.m_cb ] = '\0';
char *pchEnd;
UINT uCodePage = UINT( strtoul( szCodePage, &pchEnd, 10 ) );
// verify that pchEnd is the NULL
if (*pchEnd != 0)
ThrowError(brSegment.m_pb, IDE_TEMPLATE_BAD_CODEPAGE);
if ((m_fCodePageSet == TRUE) && (uCodePage != pHitObj->GetCodePage()))
ThrowError(brSegment.m_pb, IDE_TEMPLATE_MIXED_CODEPAGE_USAGE);
if ( FAILED( pHitObj->SetCodePage( uCodePage ) ) )
ThrowError(brSegment.m_pb, IDE_TEMPLATE_BAD_CODEPAGE);
else
{
m_wCodePage = uCodePage;
m_fCodePageSet = TRUE;
}
brSegment.Advance(DIFF(brCodePage.m_pb - brSegment.m_pb));
}
/* set LCID if required
see NOTE above for why we call we call GetTagName.
*/
else if ( fTagLCID && CompTagName( brSegment, CTokenList::tknTagLCID ) )
{
fTagLCID = FALSE;
CByteRange brLCID = BrValueOfTag( brSegment, CTokenList::tknTagLCID );
if ( brLCID.IsNull() )
ThrowError(brSegment.m_pb, IDE_TEMPLATE_NO_LCID);
if ( brLCID.m_cb > 10 ) // cannot be greater than 4G 4,000,000,000
ThrowError(brSegment.m_pb, IDE_TEMPLATE_BAD_LCID);
char szLCID[31];
strncpy( szLCID, (char*) brLCID.m_pb, brLCID.m_cb );
szLCID[ brLCID.m_cb ] = '\0';
char *pchEnd;
UINT uLCID = UINT( strtoul( szLCID, &pchEnd, 10 ) );
// verify that pchEnd is the NULL
if (*pchEnd != 0)
ThrowError(brSegment.m_pb, IDE_TEMPLATE_BAD_LCID);
if ( FAILED( pHitObj->SetLCID( uLCID ) ) )
ThrowError(brSegment.m_pb, IDE_TEMPLATE_BAD_LCID);
else
{
m_lLCID = uLCID;
m_fLCIDSet = TRUE;
}
brSegment.Advance(DIFF(brLCID.m_pb - brSegment.m_pb));
}
/* Set transacted if requiured
see NOTE above for why we call GetTagName
*/
else if ( fTagTransacted && CompTagName( brSegment, CTokenList::tknTagTransacted ) )
{
STACK_BUFFER( tempTransValue, 32 );
fTagTransacted = FALSE;
CByteRange brTransacted = BrValueOfTag( brSegment, CTokenList::tknTagTransacted );
if ( brTransacted.IsNull() )
ThrowError(brSegment.m_pb, IDE_TEMPLATE_BAD_TRANSACTED_VALUE);
if (!tempTransValue.Resize(brTransacted.m_cb + 1)) {
ThrowError(brSegment.m_pb, IDE_OOM);
}
LPSTR szTransacted = static_cast<LPSTR> (tempTransValue.QueryPtr());
strncpy(szTransacted, (LPCSTR)brTransacted.m_pb, brTransacted.m_cb);
szTransacted[brTransacted.m_cb]='\0';
if (!strcmpi(szTransacted, "REQUIRED"))
m_ttTransacted = ttRequired;
else if (!strcmpi(szTransacted, "REQUIRES_NEW"))
m_ttTransacted = ttRequiresNew;
else if (!strcmpi(szTransacted, "SUPPORTED"))
m_ttTransacted = ttSupported;
else if (!strcmpi(szTransacted, "NOT_SUPPORTED"))
m_ttTransacted = ttNotSupported;
else
ThrowError(brSegment.m_pb, IDE_TEMPLATE_BAD_TRANSACTED_VALUE);
brSegment.Advance(DIFF(brTransacted.m_pb - brSegment.m_pb));
}
/* Set session flag
see NOTE above for why we call GetTagName
*/
else if ( fTagSession && CompTagName( brSegment, CTokenList::tknTagSession ) )
{
STACK_BUFFER( tempSession, 16 );
fTagSession = FALSE;
CByteRange brSession = BrValueOfTag( brSegment, CTokenList::tknTagSession );
if ( brSession.IsNull() )
ThrowError(brSegment.m_pb, IDE_TEMPLATE_BAD_SESSION_VALUE);
if (!tempSession.Resize(brSession.m_cb + 1))
ThrowError(brSegment.m_pb, IDE_OOM);
LPSTR szSession = static_cast<LPSTR> (tempSession.QueryPtr());
strncpy(szSession, (LPCSTR)brSession.m_pb, brSession.m_cb);
szSession[brSession.m_cb]='\0';
if (strcmpi(szSession, "TRUE") == 0)
{
m_fSession = TRUE;
if (!pHitObj->PAppln()->QueryAppConfig()->fAllowSessionState())
ThrowError(brSegment.m_pb, IDE_TEMPLATE_CANT_ENABLE_SESSIONS);
}
else if (strcmpi(szSession, "FALSE") == 0)
m_fSession = FALSE;
else
ThrowError(brSegment.m_pb, IDE_TEMPLATE_BAD_SESSION_VALUE);
brSegment.Advance(DIFF(brSession.m_pb - brSegment.m_pb));
}
else
ThrowErrorSingleInsert( brSegment.m_pb,
IDE_TEMPLATE_BAD_AT_COMMAND,
brSegment.m_pb,
brSegment.m_cb
);
}
if (nFirstPass == 1)
ThrowErrorSingleInsert( brSegment.m_pb,
IDE_TEMPLATE_BAD_AT_COMMAND,
brSegment.m_pb,
brSegment.m_cb
);
// set flag true and ignore remainder of segment, since we only use this segment for page-level @ commands
WorkStore.m_fPageCommandsExecuted = TRUE;
goto LExit;
}
}
if(sseg == ssegTaggedScript)
{
if(!fScriptTagProcessed)
{
/* semantics of script-tag-processed flag:
- if false, we have a 'fresh' tagged script block, so we need to get its engine name
(which also advances past the script tag header) and then process the tagged segment
via indirect recursive call
- if true, we have aleady been called recursively, so we bypass further recursion
and simply append to store
*/
CByteRange brIncludeFile;
GetScriptEngineOfSegment(brSegment, WorkStore.m_brCurEngine, brIncludeFile);
if (! brIncludeFile.IsNull())
{
STACK_BUFFER( tempInclude, 256 );
if (!tempInclude.Resize(brIncludeFile.m_cb + 1)) {
ThrowError(brSegment.m_pb, IDE_OOM);
}
// Create Null-terminated string from brIncludeFile
char *szFileSpec = reinterpret_cast<char *>(tempInclude.QueryPtr());
memcpy(szFileSpec, brIncludeFile.m_pb, brIncludeFile.m_cb);
szFileSpec[brIncludeFile.m_cb] = 0;
if (szFileSpec[0] == '\\') // metabase stuff chokes on initial '\' char
szFileSpec[0] = '/';
// read the include file (szFileSpec & brIncludeFile in this case point to same string contents.
// however, "brIncludeFile" is used as an error location.
//
TRY
ProcessIncludeFile2(szFileSpec, brIncludeFile, pfilemapCurrent, WorkStore, idSequence, pHitObj, FALSE);
CATCH(hrException)
// The TRY/CATCH below may re-throw a IDE_TEMPLATE_BAD_PROGLANG when the
// segment being processed is tagged script with a SRC file. The reason being
// that to properly report the error, the ThrowErrorSingleInsert must be called
// from the template which contained the script tag with the bad prog lang. If
// called from the template created containing the included script, then the
// brEngine assigned below is not pointing into the included script's filemap
// which results in AVs because we can't do the pointer math to determine the
// line number.
if(hrException == IDE_TEMPLATE_BAD_PROGLANG)
// exception code is really an error message id: set err id to it
ThrowErrorSingleInsert(
WorkStore.m_brCurEngine.m_pb,
IDE_TEMPLATE_BAD_PROGLANG,
WorkStore.m_brCurEngine.m_pb,
WorkStore.m_brCurEngine.m_cb
);
else
// other exception: re-throw
THROW(hrException);
END_TRY
// done - don't process script text
return;
}
else
ProcessTaggedScriptSegment(brSegment, pfilemapCurrent, WorkStore, pHitObj);
}
brEngine = WorkStore.m_brCurEngine;
}
TRY
// append script segment to store
WorkStore.m_ScriptStore.AppendScript(brSegment, brEngine, (sseg == ssegPrimaryScript), idSequence, pfilemapCurrent);
CATCH(hrException)
// NOTE exception code from AppendScript() is overloaded: it can be an error message id or a true exception
// if the brEngine does not point to memory within the current filemap, then
// we must have come into here because of a tagged script statement with a SRC=
// attrib. In which case, we won't call ThrowError from here but will re-throw
// the error to be caught above.
if((hrException == IDE_TEMPLATE_BAD_PROGLANG)
&& (brEngine.m_pb >= pfilemapCurrent->m_pbStartOfFile)
&& (brEngine.m_pb < (pfilemapCurrent->m_pbStartOfFile + pfilemapCurrent->GetSize()))) {
// exception code is really an error message id: set err id to it
ThrowErrorSingleInsert(
brEngine.m_pb,
IDE_TEMPLATE_BAD_PROGLANG,
brEngine.m_pb,
brEngine.m_cb
);
}
else
// other exception: re-throw
THROW(hrException);
END_TRY
LExit:
// set flag to say we can no longer set primary language (must be in first script segment, if at all)
WorkStore.m_fPageCommandsAllowed = FALSE;
}
/* ========================================================
CTemplate::ProcessMetadataSegment
Parses the metadata comment for typelib information.
Returns
HRESULT
*/
HRESULT
CTemplate::ProcessMetadataSegment
(
const CByteRange& brSegment,
UINT *pidError,
CHitObj *pHitObj
)
{
// TYPELIB
if (FTagHasValue(brSegment,
CTokenList::tknTagType,
CTokenList::tknValueTypeLib))
{
return ProcessMetadataTypelibSegment(brSegment, pidError, pHitObj);
}
// METADATA INVALID in Global.asa
else if (m_fGlobalAsa)
{
ThrowError(brSegment.m_pb, IDE_TEMPLATE_METADATA_IN_GLOBAL_ASA);
return E_TEMPLATE_COMPILE_FAILED_DONT_CACHE; // to keep compiler happy; in reality doesn't return.
}
// COOKIE
else if (FTagHasValue(brSegment,
CTokenList::tknTagType,
CTokenList::tknValueCookie))
{
return ProcessMetadataCookieSegment(brSegment, pidError, pHitObj);
}
// Ignore everything else
else
{
return S_OK;
}
}
/* ========================================================
CTemplate::ProcessMetadataTypelibSegment
Parses the metadata comment for typelib information.
Returns
HRESULT
*/
HRESULT
CTemplate::ProcessMetadataTypelibSegment
(
const CByteRange& brSegment,
UINT *pidError,
CHitObj *pHitObj
)
{
// Ignore ENDSPAN segments
if (GetTagName(brSegment, CTokenList::tknTagEndspan))
{
// ENDSPAN found - ignore
return S_OK;
}
HRESULT hr;
char szFile[MAX_PATH+1];
DWORD cbFile;
// Try to get the filename
CByteRange br = BrValueOfTag(brSegment, CTokenList::tknTagFile);
if (!br.IsNull())
{
// filename present
if (br.m_cb > MAX_PATH)
{
// file too long
*pidError = IDE_TEMPLATE_BAD_TYPELIB_SPEC;
return E_FAIL;
}
memcpy(szFile, br.m_pb, br.m_cb);
cbFile = br.m_cb;
szFile[cbFile] = '\0';
}
else
{
// No filename - use GUID, version, LCID to get file
char szUUID[44]; // {} + hex chars + dashes
char szVers[16]; // "1.0", etc
char szLCID[16]; // locale id - a number
br = BrValueOfTag(brSegment, CTokenList::tknTagUUID);
if (br.IsNull() || br.m_cb > sizeof(szUUID)-3)
{
// no filename and no uuid -> invalid typelib spec
*pidError = IDE_TEMPLATE_BAD_TYPELIB_SPEC;
return E_FAIL;
}
if (br.m_pb[0] == '{')
{
// already in braces
memcpy(szUUID, br.m_pb, br.m_cb);
szUUID[br.m_cb] = '\0';
}
else
{
// enclose in {}
szUUID[0] = '{';
memcpy(szUUID+1, br.m_pb, br.m_cb);
szUUID[br.m_cb+1] = '}';
szUUID[br.m_cb+2] = '\0';
}
// Optional Version
szVers[0] = '\0';
br = BrValueOfTag(brSegment, CTokenList::tknTagVersion);
if (!br.IsNull() && br.m_cb < sizeof(szVers)-1)
{
memcpy(szVers, br.m_pb, br.m_cb);
szVers[br.m_cb] = '\0';
}
// Optional LCID
LCID lcid;
br = BrValueOfTag(brSegment, CTokenList::tknTagLCID);
if (!br.IsNull() && br.m_cb < sizeof(szLCID)-1)
{
memcpy(szLCID, br.m_pb, br.m_cb);
szLCID[br.m_cb] = '\0';
lcid = strtoul(szLCID, NULL, 16);
}
else
{
// if the LCID is not defined -> use system's
lcid = GetSystemDefaultLCID();
}
// Get TYPELIB filename from registry
hr = GetTypelibFilenameFromRegistry
(
szUUID,
szVers,
lcid,
szFile,
MAX_PATH
);
if (FAILED(hr))
{
*pidError = IDE_TEMPLATE_BAD_TYPELIB_REG_SPEC;
return hr;
}
cbFile = strlen(szFile);
}
// Convert filename to double-byte to call LoadTypeLib()
STACK_BUFFER( tempFile, MAX_PATH * sizeof(WCHAR) );
if (!tempFile.Resize((cbFile+1) * sizeof(WCHAR))) {
*pidError = IDE_OOM;
return E_FAIL;
}
LPWSTR wszFile = (LPWSTR)tempFile.QueryPtr();
if (MultiByteToWideChar(pHitObj->GetCodePage(), MB_ERR_INVALID_CHARS,
szFile, cbFile, wszFile, cbFile) == 0)
{
*pidError = IDE_OOM;
return E_FAIL;
}
wszFile[cbFile] = L'\0';
// LoadTypeLib() to get ITypeLib*
ITypeLib *ptlb = NULL;
hr = LoadTypeLib(wszFile, &ptlb);
if (FAILED(hr))
{
*pidError = IDE_TEMPLATE_LOAD_TYPELIB_FAILED;
return hr;
}
// Remember ITypeLib* in the array
Assert(ptlb);
hr = m_rgpTypeLibs.append(ptlb);
if (FAILED(hr))
{
*pidError = IDE_TEMPLATE_LOAD_TYPELIB_FAILED;
return hr;
}
return S_OK;
}
/* ========================================================
CTemplate::ProcessMetadataCookieSegment
Parses the metadata comment for cookie information.
Returns
HRESULT
*/
HRESULT
CTemplate::ProcessMetadataCookieSegment
(
const CByteRange& brSegment,
UINT *pidError,
CHitObj *pHitObj
)
{
HRESULT hr;
CByteRange br;
char *pszName;
char szFile[MAX_PATH+1];
TCHAR sztFile[MAX_PATH+1];
CMBCSToWChar convStr;
STACK_BUFFER( tempCookie, 64 );
STACK_BUFFER( tempFile, 64 );
// Try to get the cookie name
br = BrValueOfTag(brSegment, CTokenList::tknTagName);
if (br.IsNull() || (br.m_cb == 0)) {
*pidError = IDE_TEMPLATE_BAD_COOKIE_SPEC_NAME;
return E_FAIL;
}
if (!tempCookie.Resize(br.m_cb + 1)) {
*pidError = IDE_OOM;
return E_FAIL;
}
pszName = (char *)tempCookie.QueryPtr();
if (!pszName)
{
*pidError = IDE_OOM;
return E_FAIL;
}
memcpy(pszName, br.m_pb, br.m_cb);
pszName[br.m_cb] = '\0';
// Try to get the path to the script
br = BrValueOfTag(brSegment, CTokenList::tknTagSrc);
if (br.IsNull() || (br.m_cb >= MAX_PATH) || (br.m_cb == 0))
{
*pidError = IDE_TEMPLATE_BAD_COOKIE_SPEC_SRC;
return E_FAIL;
}
memcpy(szFile, br.m_pb, br.m_cb);
szFile[br.m_cb] = '\0';
// Convert file to physical path
Assert(pHitObj->PServer());
WCHAR *pCookieFile;
// 6.0 can handle UNICODE. Convert using script code page
if (FAILED (convStr.Init (szFile,pHitObj->GetCodePage()))) {
*pidError = IDE_OOM;
return E_FAIL;
}
pCookieFile = convStr.GetString();
if (FAILED(pHitObj->PServer()->MapPathInternal(0, pCookieFile, sztFile)))
{
*pidError = IDE_TEMPLATE_BAD_COOKIE_SPEC_SRC;
return E_FAIL;
}
Normalize(sztFile);
// Construct 449-echo-cookie object
C449Cookie *p449 = NULL;
hr = Create449Cookie(pszName, sztFile, &p449);
if (FAILED(hr))
{
*pidError = IDE_TEMPLATE_LOAD_COOKIESCRIPT_FAILED;
return hr;
}
// Remember 449 cookie in the array
Assert(p449);
hr = m_rgp449.append(p449);
if (FAILED(hr)) {
*pidError = IDE_TEMPLATE_LOAD_COOKIESCRIPT_FAILED;
return hr;
}
return S_OK;
}
/* ========================================================
CTemplate::GetScriptEngineOfSegment
Returns script engine name for a script segment.
Returns
Byte range containing script engine name
Side effects
Advances segment byte range past close tag token
*/
void
CTemplate::GetScriptEngineOfSegment
(
CByteRange& brSegment, // segment byte range
CByteRange& brEngine, // script engine name
CByteRange& brInclude // value of SRC tag
)
{
BYTE* pbCloseTag; // ptr to close of start tag
// tags contained in start tag
CByteRange brTags = BrTagsFromSegment(brSegment, CTokenList::tknCloseTaggedScript, &pbCloseTag);
// if no close found, throw error
if(pbCloseTag == NULL)
ThrowError(brSegment.m_pb, IDE_TEMPLATE_NO_CLOSE_TSCRIPT);
Assert(FTagHasValue(brTags, CTokenList::tknTagRunat, CTokenList::tknValueServer));
// get engine name from tags
brEngine = BrValueOfTag(brTags, CTokenList::tknTagLanguage);
if(brEngine.IsNull())
ThrowError(brSegment.m_pb, IDE_TEMPLATE_NO_ENGINE_NAME);
// Get SRC attribute from tags
brInclude = BrValueOfTag(brTags, CTokenList::tknTagSrc);
// advance segment past close tag token
gm_pTokenList->MovePastToken(CTokenList::tknCloseTag, pbCloseTag, brSegment);
}
/* ========================================================
CTemplate::ProcessTaggedScriptSegment
Processes a tagged script segment: within tagged script we
honor plain text (passed through as script text) and HTML comments.
See bug 423 for istudio scenarios that require this behavior.
Returns
Nothing
Side effects
None
*/
void
CTemplate::ProcessTaggedScriptSegment
(
CByteRange& brSegment, // segment byte range
CFileMap* pfilemapCurrent,// ptr to filemap of parent file
CWorkStore& WorkStore, // working storage for source segments
CHitObj* pHitObj // Browser request object
)
{
_TOKEN* rgtknOpeners; // array of permitted open tokens
_TOKEN tknOpeners[1];
UINT ctknOpeners; // count of permitted open tokens
// populate array of permitted open tokens
ctknOpeners = 1;
rgtknOpeners = tknOpeners;
rgtknOpeners[0] = CTokenList::tknOpenHTMLComment;
// Process source segments embedded within tagged script segment
while(!brSegment.IsNull())
ExtractAndProcessSegment(
brSegment, // byte range to search for next segment-opening token
ssegTaggedScript, // type of 'leading', i.e. pre-token, source segment
rgtknOpeners, // array of permitted open tokens
ctknOpeners, // count of permitted open tokens
pfilemapCurrent, // ptr to filemap of parent file
WorkStore, // working storage for source segments
pHitObj, // Browser request object
TRUE, // script tag has been processed
FALSE // NOT in HTML segment
);
}
/* ============================================================================
CTemplate::ProcessObjectSegment
Processes an object segment.
Returns
Nothing
Side effects
throws on error
*/
void
CTemplate::ProcessObjectSegment
(
CByteRange& brSegment, // segment byte range
CFileMap* pfilemapCurrent,// ptr to filemap of parent file
CWorkStore& WorkStore, // working storage for source segments
UINT idSequence // segment sequence id
)
{
BYTE* pbCloseTag; // ptr to close of start tag
// tags contained in start tag
CByteRange brTags = BrTagsFromSegment(brSegment, CTokenList::tknCloseObject, &pbCloseTag);
// if no close found, bail on error
if(pbCloseTag == NULL)
ThrowError(brSegment.m_pb, IDE_TEMPLATE_NO_CLOSE_OBJECT);
// if this is a server object (RUNAT=Server), process its tags
if(FTagHasValue(brTags, CTokenList::tknTagRunat, CTokenList::tknValueServer))
{
CLSID ClsId; // clsid
// get name value
CByteRange brName = BrValueOfTag(brTags, CTokenList::tknTagID);
// if name is null, error out
if(brName.IsNull())
ThrowError(brSegment.m_pb, IDE_TEMPLATE_NO_OBJECT_NAME);
if(!FValidObjectName(brName))
ThrowErrorSingleInsert(brName.m_pb, IDE_TEMPLATE_INVALID_OBJECT_NAME, brName.m_pb, brName.m_cb);
// get values for ClassID and ProgID tags
CByteRange brClassIDText = BrValueOfTag(brTags, CTokenList::tknTagClassID);
CByteRange brProgIDText = BrValueOfTag(brTags, CTokenList::tknTagProgID);
if(!brClassIDText.IsNull())
// if we find a text class id, set clsid with it
// NOTE progid tag is ignored if classid tag exists
GetCLSIDFromBrClassIDText(brClassIDText, &ClsId);
else if(!brProgIDText.IsNull())
// else if we find a prog id, resolve it into a class id
GetCLSIDFromBrProgIDText(brProgIDText, &ClsId);
else
// else, throw error; can't create an object without at least one of classid or progid
ThrowErrorSingleInsert(brTags.m_pb, IDE_TEMPLATE_NO_CLASSID_PROGID, brName.m_pb, brName.m_cb);
// set scope; bail if bogus
CompScope csScope = csUnknown;
CByteRange brScope = BrValueOfTag(brTags, CTokenList::tknTagScope);
if(brScope.FMatchesSz(SZ_TOKEN(CTokenList::tknValuePage)) || brScope.IsNull())
// non-existent scope tag defaults to page scope
csScope = csPage;
else if(brScope.FMatchesSz(SZ_TOKEN(CTokenList::tknValueApplication)))
csScope = csAppln;
else if(brScope.FMatchesSz(SZ_TOKEN(CTokenList::tknValueSession)))
csScope = csSession;
else
ThrowError(brTags.m_pb, IDE_TEMPLATE_BAD_OBJECT_SCOPE);
if(!m_fGlobalAsa && csScope != csPage)
// error out on non-page-level object if we are processing anything but global.asa
ThrowErrorSingleInsert(brTags.m_pb, IDE_TEMPLATE_BAD_PAGE_OBJECT_SCOPE, brName.m_pb, brName.m_cb);
else if(m_fGlobalAsa && csScope == csPage)
// error out on page-level object if we are processing global.asa
ThrowErrorSingleInsert(brTags.m_pb, IDE_TEMPLATE_BAD_GLOBAL_OBJECT_SCOPE, brName.m_pb, brName.m_cb);
// set threading model
CompModel cmModel = cmSingle;
CompModelFromCLSID(ClsId, &cmModel);
// append object-info to store
WorkStore.m_ObjectInfoStore.AppendObject(brName, ClsId, csScope, cmModel, idSequence);
}
}
/* ============================================================================
CTemplate::GetCLSIDFromBrClassIDText
Sets a clsid from a byte range containing an ANSI text version of a class id
Returns
ptr to clsid (out-parameter)
Side effects
throws on error
*/
void
CTemplate::GetCLSIDFromBrClassIDText
(
CByteRange& brClassIDText,
LPCLSID pclsid
)
{
// if class id text starts with its standard object tag prefix, advance past it
if(!_strnicmp((char*)brClassIDText.m_pb, "clsid:", 6))
brClassIDText.Advance(6);
// if class id text is bracketed with {}, adjust byte range to strip them
// NOTE we always add {} below, because normal case is that they are missing from input text
if(*brClassIDText.m_pb == '{')
brClassIDText.Advance(1);
if(*(brClassIDText.m_pb + brClassIDText.m_cb - 1) == '}')
brClassIDText.m_cb--;
// Allocate a wide char string for the string version of class id
// NOTE we add 3 characters to hold {} and null terminator
OLECHAR* pszWideClassID = new WCHAR[brClassIDText.m_cb + 3];
if (NULL == pszWideClassID)
THROW(E_OUTOFMEMORY);
// start wide string class id with left brace
pszWideClassID[0] = '{';
// Convert the string class id to wide chars
if (0 == MultiByteToWideChar( CP_ACP, // ANSI code page
MB_ERR_INVALID_CHARS, // err on invalid chars
(LPCSTR)brClassIDText.m_pb, // input ANSI string version of class id
brClassIDText.m_cb, // length of input string
pszWideClassID + 1, // location for output wide string class id
brClassIDText.m_cb // size of output buffer
))
{
delete [] pszWideClassID;
THROW(E_FAIL);
}
// append right brace to wide string
pszWideClassID[brClassIDText.m_cb + 1] = '}';
// Null terminate the wide string
pszWideClassID[brClassIDText.m_cb + 2] = NULL;
// Now get the clsid from wide string class id
if(FAILED(CLSIDFromString(pszWideClassID, pclsid)))
{
delete [] pszWideClassID;
ThrowErrorSingleInsert(brClassIDText.m_pb, IDE_TEMPLATE_BAD_CLASSID, brClassIDText.m_pb, brClassIDText.m_cb);
}
if(NULL != pszWideClassID)
delete [] pszWideClassID;
}
/* ===================================================================
CTemplate::GetCLSIDFromBrProgIDText
Gets a clsid from the registry given a ProgID
Returns
ptr to clsid (out-parameter)
Side effects
throws on error
*/
void
CTemplate::GetCLSIDFromBrProgIDText
(
CByteRange& brProgIDText,
LPCLSID pclsid
)
{
// allocate a wide char string for ProgID plus null terminator
OLECHAR* pszWideProgID = new WCHAR[brProgIDText.m_cb + 1];
if (NULL == pszWideProgID)
THROW(E_OUTOFMEMORY);
// Convert the string class id to wide chars
if (0 == MultiByteToWideChar( CP_ACP, // ANSI code page
MB_ERR_INVALID_CHARS, // err on invalid chars
(LPCSTR)brProgIDText.m_pb, // input ANSI string version of prog id
brProgIDText.m_cb, // length of input string
pszWideProgID, // location for output wide string prog id
brProgIDText.m_cb // size of output buffer
))
{
delete [] pszWideProgID; pszWideProgID = NULL;
THROW(E_FAIL);
}
// Null terminate the wide string
pszWideProgID[brProgIDText.m_cb] = NULL;
// Now get clsid from ProgID
if(FAILED(CLSIDFromProgID(pszWideProgID, pclsid)))
{
delete [] pszWideProgID; pszWideProgID = NULL;
ThrowErrorSingleInsert(brProgIDText.m_pb, IDE_TEMPLATE_BAD_PROGID, brProgIDText.m_pb, brProgIDText.m_cb);
}
// Cache ProgId to CLSID mapping
g_TypelibCache.RememberProgidToCLSIDMapping(pszWideProgID, *pclsid);
if (NULL != pszWideProgID)
delete [] pszWideProgID;
}
/* ============================================================================
CTemplate::FValidObjectName
Determines whether an object name clashes with a Denali intrinsic object name.
Returns
TRUE or FALSE
Side effects
None
*/
BOOLB
CTemplate::FValidObjectName
(
CByteRange& brName // object name
)
{
if(brName.FMatchesSz(SZ_OBJ_APPLICATION))
return FALSE;
if(brName.FMatchesSz(SZ_OBJ_REQUEST))
return FALSE;
if(brName.FMatchesSz(SZ_OBJ_RESPONSE))
return FALSE;
if(brName.FMatchesSz(SZ_OBJ_SERVER))
return FALSE;
if(brName.FMatchesSz(SZ_OBJ_CERTIFICATE))
return FALSE;
if(brName.FMatchesSz(SZ_OBJ_SESSION))
return FALSE;
if(brName.FMatchesSz(SZ_OBJ_SCRIPTINGNAMESPACE))
return FALSE;
return TRUE;
}
/* ============================================================================
CTemplate::ProcessIncludeFile
Processes an include file.
Returns
Nothing
*/
void
CTemplate::ProcessIncludeFile
(
CByteRange& brSegment, // segment byte range
CFileMap* pfilemapCurrent, // ptr to filemap of parent file
CWorkStore& WorkStore, // current working storage
UINT idSequence, // sequence #
CHitObj* pHitObj, // Browser request object pointer
BOOL fIsHTML
)
{
CByteRange brFileSpec; // filespec of include file
BOOLB fVirtual = FALSE; // is include filespec virtual?
// filespec of include file (sz)
CHAR szFileSpec[MAX_PATH + 1];
LPSTR szTemp = szFileSpec; // temp ptr to filespec
// get value of FILE tag
brFileSpec = BrValueOfTag(brSegment, CTokenList::tknTagFile);
if(brFileSpec.IsNull())
{
// if we found no FILE tag, get value of VIRTUAL tag
brFileSpec = BrValueOfTag(brSegment, CTokenList::tknTagVirtual);
fVirtual = TRUE;
}
if(brFileSpec.IsNull())
// if we found neither, error out
ThrowError(brSegment.m_pb, IDE_TEMPLATE_NO_INCLUDE_NAME);
if (brFileSpec.m_cb>MAX_PATH)
{
// return the last MAX_PATH chars of the file name. This is done
// this way to avoid a Error Too Long message when the include
// file spec is exceedingly long.
char fileNameLast[MAX_PATH+4];
strcpy(fileNameLast, "...");
strcpy(fileNameLast+3, (LPSTR)(brFileSpec.m_pb+brFileSpec.m_cb-MAX_PATH));
ThrowErrorSingleInsert(brFileSpec.m_pb,
IDE_TEMPLATE_BAD_INCLUDE,
brFileSpec.m_pb,
brFileSpec.m_cb);
}
// NOTE we manipulate temp sz to preserve szFileSpec
if(fVirtual)
{
if(*brFileSpec.m_pb == '\\')
{
// if VIRTUAL path starts with backslash, replace it with fwd slash
*szTemp++ = '/';
brFileSpec.Advance(1);
}
else if(*brFileSpec.m_pb != '/')
// if VIRTUAL path starts with anything other than fwd slash or backslash, prepend fwd slash
*szTemp++ = '/';
}
// append supplied path to temp sz
strncpy(szTemp, (LPCSTR) brFileSpec.m_pb, brFileSpec.m_cb);
szTemp[brFileSpec.m_cb] = NULL;
if(!fVirtual)
{
// if FILE filespec starts with \ or /, hurl
if(*szFileSpec == '\\' || *szFileSpec == '/')
ThrowErrorSingleInsert(
brFileSpec.m_pb,
IDE_TEMPLATE_BAD_FILE_TAG,
brFileSpec.m_pb,
brFileSpec.m_cb
);
}
// NOTE: szFileSpec is the doctored path (it possibly has "/" prepended.
// brFileSpec is used as the error location.
//
ProcessIncludeFile2(szFileSpec, brFileSpec, pfilemapCurrent, WorkStore, idSequence, pHitObj, fIsHTML);
}
/* ============================================================================
CTemplate::ProcessIncludeFile2
adds a #include file to the CTemplate and starts the template to processing
the file.
Returns
Nothing
Side effects
Calls GetSegmentsFromFile recursively
NOTE - kind of an oddball thing here. The szFileSpec in this case is
intentionally ANSI as it came from the ASP script content. It may need
to be converted to UNICODE.
*/
void
CTemplate::ProcessIncludeFile2
(
CHAR * szAnsiFileSpec, // file to include
CByteRange& brErrorLocation, // ByteRange in source where errors should be reported
CFileMap* pfilemapCurrent, // ptr to filemap of parent file
CWorkStore& WorkStore, // current working storage
UINT idSequence, // sequence #
CHitObj* pHitObj, // Browser request object pointer
BOOL fIsHTML
)
{
HRESULT hr;
TCHAR *szFileSpec;
#if UNICODE
CMBCSToWChar convFileSpec;
if (FAILED(hr = convFileSpec.Init(szAnsiFileSpec, pHitObj->GetCodePage()))) {
THROW(hr);
}
szFileSpec = convFileSpec.GetString();
#else
szFileSpec = szAnsiFileSpec;
#endif
// if parent paths are disallowed and filespec contains parent dir reference, hurl
if (!pHitObj->QueryAppConfig()->fEnableParentPaths() && _tcsstr(szFileSpec, _T("..")))
ThrowErrorSingleInsert(
brErrorLocation.m_pb,
IDE_TEMPLATE_DISALLOWED_PARENT_PATH,
brErrorLocation.m_pb,
brErrorLocation.m_cb
);
TRY
AppendMapFile(
szFileSpec,
pfilemapCurrent,
(szFileSpec[0] == _T('/')) || (szFileSpec[0] == _T('\\')), // fVirtual
pHitObj, // main file's hit object
FALSE // not the global.asa file
);
CATCH(hrException)
// MapFile() threw an exception: delete last filemap's memory and decrement filemap counter
// NOTE this is a bit hokey, but we need to do it here rather than AppendMapFile (where we allocated)
// because its other caller(s) may not want this behavior
delete m_rgpFilemaps[m_cFilemaps-- - 1];
/* NOTE exception code from MapFile() is overloaded: it can sometimes
be an error message id, sometimes a true exception
NOTE security error causes exception E_USER_LACKS_PERMISSIONS, rather than error id,
but we pass it thru as if it were an error id because the various error-catch routines
know how to handle E_USER_LACKS_PERMISSIONS specially.
*/
UINT idErrMsg;
if(hrException == IDE_TEMPLATE_CYCLIC_INCLUDE || hrException == E_USER_LACKS_PERMISSIONS)
// exception code is really an error message id: set err id to it
idErrMsg = hrException;
else if(hrException == E_COULDNT_OPEN_SOURCE_FILE)
// exception is generic couldn't-open-file : set err id to generic bad-file error
idErrMsg = IDE_TEMPLATE_BAD_INCLUDE;
else
// other exception: re-throw
THROW(hrException);
ThrowErrorSingleInsert(
brErrorLocation.m_pb,
idErrMsg,
brErrorLocation.m_pb,
brErrorLocation.m_cb
);
END_TRY
// store ptr to current file map in local before recursive call (which may increment m_cFilemaps)
CFileMap* pfilemap = m_rgpFilemaps[m_cFilemaps - 1];
// get inc-file object from cache
CIncFile* pIncFile;
if(FAILED(hr = g_IncFileMap.GetIncFile(pfilemap->m_szPathTranslated, &pIncFile)))
THROW(hr);
// add this template to inc-file's template list
if (FAILED(hr = pIncFile->AddTemplate(this)))
THROW(hr);
// set filemap's inc-file ptr
pfilemap->m_pIncFile = pIncFile;
// get source segments from include file
// bugs 1363, 1364: process include file only after we establish dependencies;
// required for cache flushing to work correctly after compile errors
GetSegmentsFromFile(*pfilemap, WorkStore, pHitObj, fIsHTML);
}
/* ===================================================================
CTemplate::GetOpenToken
Returns the token index of and a ptr to the first valid open token
in search range. For the open token to be valid, we must bypass
segments we should not process, e.g. scripts or objects not tagged as 'server'
Returns
ptr to open token; ptr to open token enum value (out-parameter)
Side effects
None
*/
BYTE*
CTemplate::GetOpenToken
(
CByteRange brSearch, // (ByVal) byte range to search for next segment-opening token
SOURCE_SEGMENT ssegLeading, // type of 'leading', i.e. pre-token, source segment
// (only used when deciding to ignore non-SSI comments)
_TOKEN* rgtknOpeners, // array of permitted open tokens
UINT ctknOpeners, // count of permitted open tokens
_TOKEN* ptknOpen // ptr to open token enum value (out-parameter)
)
{
BYTE* pbTokenOpen = NULL; // ptr to opening token
// keep getting segment-opening tokens until we find one that we need to process
while(TRUE)
{
// Get next open token in search range
*ptknOpen = gm_pTokenList->NextOpenToken(
brSearch,
rgtknOpeners,
ctknOpeners,
&pbTokenOpen,
m_wCodePage
);
/* Certain tokens must be followed immediately by white space; others need not.
NOTE it is pure coincidence that the 'white-space tokens' are also those that
get special processing below; hence we handle white space issue there.
If we ever add another 'white-space token' that doesn't require the special processing,
we will need to handle the white space issue here.
*/
/* Similar thing applies to non-include and non-metadata HTML
comments. We really don't care for them to generate their
own segments -- we can reduce number of Response.WriteBlock()
calls by considering them part of the preceding HTML segment.
*/
if (*ptknOpen == CTokenList::tknOpenHTMLComment)
{
if (ssegLeading != ssegHTML) // if not inside HTML
break; // generate a new segment
// for HTML comments check if it is an include or metadata
// and if not, this is not a separate segment - keep on looking
// for the next opener
// advance search range to just past open token
gm_pTokenList->MovePastToken(*ptknOpen, pbTokenOpen, brSearch);
// find end of comment
BYTE *pbClose = gm_pTokenList->GetToken(CTokenList::tknCloseHTMLComment,
brSearch, m_wCodePage);
if (pbClose == NULL)
{
// Error -- let other code handle this
break;
}
// construct comment byte range to limit search to it
CByteRange brComment = brSearch;
brComment.m_cb = DIFF(pbClose - brSearch.m_pb);
// look for metadata and include (only inside the comment)
if (gm_pTokenList->GetToken(CTokenList::tknCommandINCLUDE,
brComment, m_wCodePage))
{
// SSI inclide -- keep it
break;
}
else if (gm_pTokenList->GetToken(CTokenList::tknTagMETADATA,
brComment, m_wCodePage))
{
// METADATA -- keep it
break;
}
else if (gm_pTokenList->GetToken(CTokenList::tknTagFPBot,
brComment, m_wCodePage))
{
// METADATA -- keep it
break;
}
else
{
// Regular comment - ignore it
goto LKeepLooking;
}
}
else if (*ptknOpen == CTokenList::tknOpenTaggedScript || *ptknOpen == CTokenList::tknOpenObject)
{
/* if token was script or object tag, check to see if:
a) it is followed immediately by white space; if not keep looking
b) it opens a well-formed segment, i.e. one with a proper close tag; if not, throw error
c) it is designated runat-server; if not keep looking
*/
// advance search range to just past open token
gm_pTokenList->MovePastToken(*ptknOpen, pbTokenOpen, brSearch);
// bug 760: if token is not followed immediately by white space, keep looking
if(!brSearch.IsNull())
if(!FWhiteSpace(*brSearch.m_pb))
goto LKeepLooking;
// ptr to close of start tag
BYTE* pbCloseTag;
// tags contained in start tag
CByteRange brTags = BrTagsFromSegment(
brSearch,
GetComplementToken(*ptknOpen),
&pbCloseTag
);
if(pbCloseTag == NULL)
{
// if no close tag, throw error
if(*ptknOpen == CTokenList::tknOpenObject)
ThrowError(pbTokenOpen, IDE_TEMPLATE_NO_CLOSE_OBJECT);
else if(*ptknOpen == CTokenList::tknOpenTaggedScript)
ThrowError(pbTokenOpen, IDE_TEMPLATE_NO_CLOSE_TSCRIPT);
}
// if this is a server object (RUNAT=Server), we will process it; else keep looking
if(FTagHasValue(brTags, CTokenList::tknTagRunat, CTokenList::tknValueServer))
break;
}
else
{
// if token was other than script or object tag, or comment
// we should process segment;
// hence we have found our open token, so break
break;
}
LKeepLooking: ;
}
return pbTokenOpen;
}
/* ===================================================================
CTemplate::GetCloseToken
Returns a ptr to the next token of type tknClose.
Returns
ptr to close token
Side effects
Detects and errors out on attempt to nest tagged script or object blocks.
*/
BYTE*
CTemplate::GetCloseToken
(
CByteRange brSearch, // (ByVal) byte range to search
_TOKEN tknClose // close token
)
{
BYTE* pbTokenClose = gm_pTokenList->GetToken(tknClose, brSearch, m_wCodePage);
if(pbTokenClose != NULL)
if(tknClose == CTokenList::tknCloseTaggedScript || tknClose == CTokenList::tknCloseObject)
{
CByteRange brSegment;
BYTE* pbTokenOpen;
brSegment.m_pb = brSearch.m_pb;
brSegment.m_cb = DIFF(pbTokenClose - brSearch.m_pb);
if(NULL != (pbTokenOpen = gm_pTokenList->GetToken(GetComplementToken(tknClose), brSegment, m_wCodePage)))
{
if(tknClose == CTokenList::tknCloseTaggedScript)
ThrowError(pbTokenOpen, IDE_TEMPLATE_NESTED_TSCRIPT);
else if(tknClose == CTokenList::tknCloseObject)
ThrowError(pbTokenOpen, IDE_TEMPLATE_NESTED_OBJECT);
}
}
return pbTokenClose;
}
/*===================================================================
CTemplate::GetComplementToken
Returns a token's compement token.
Returns
Complement token
Side effects
None
*/
_TOKEN
CTemplate::GetComplementToken
(
_TOKEN tkn
)
{
switch(tkn)
{
// open tokens
case CTokenList::tknOpenPrimaryScript:
return CTokenList::tknClosePrimaryScript;
case CTokenList::tknOpenTaggedScript:
return CTokenList::tknCloseTaggedScript;
case CTokenList::tknOpenObject:
return CTokenList::tknCloseObject;
case CTokenList::tknOpenHTMLComment:
return CTokenList::tknCloseHTMLComment;
// close tokens
case CTokenList::tknClosePrimaryScript:
return CTokenList::tknOpenPrimaryScript;
case CTokenList::tknCloseTaggedScript:
return CTokenList::tknOpenTaggedScript;
case CTokenList::tknCloseObject:
return CTokenList::tknOpenObject;
case CTokenList::tknCloseHTMLComment:
return CTokenList::tknOpenHTMLComment;
}
Assert(FALSE);
return CTokenList::tknEOF;
}
/*===================================================================
CTemplate::GetSegmentOfOpenToken
Returns the segment type of an open token.
Returns
source segment type of open token
Side effects
None
*/
CTemplate::SOURCE_SEGMENT
CTemplate::GetSegmentOfOpenToken
(
_TOKEN tknOpen
)
{
switch(tknOpen)
{
case CTokenList::tknOpenPrimaryScript:
return ssegPrimaryScript;
case CTokenList::tknOpenTaggedScript:
return ssegTaggedScript;
case CTokenList::tknOpenObject:
return ssegObject;
case CTokenList::tknOpenHTMLComment:
return ssegHTMLComment;
}
return ssegHTML;
}
/* ========================================================
CTemplate::BrTagsFromSegment
Returns the tag range from an HTML start tag
Returns
tag byte range
Side effects
none
*/
CByteRange
CTemplate::BrTagsFromSegment
(
CByteRange brSegment, // segment byte range
_TOKEN tknClose, // close token
BYTE** ppbCloseTag // ptr-to-ptr to close tag - returned to caller
)
{
CByteRange brTags; // tags return value - NOTE constructed null
// ptr to close token - NOTE null if none within segment byte range
BYTE* pbTokenClose = GetCloseToken(brSegment, tknClose);
// if no close tag found, return null tags
if(NULL == (*ppbCloseTag = gm_pTokenList->GetToken(CTokenList::tknCloseTag, brSegment, m_wCodePage)))
goto Exit;
// if next non-null close token occurs before close tag, close tag is invalid; return nulls
if((pbTokenClose != NULL) && (*ppbCloseTag > pbTokenClose ))
{
*ppbCloseTag = NULL;
goto Exit;
}
// crack tags from header tag
brTags.m_pb = brSegment.m_pb;
brTags.m_cb = DIFF(*ppbCloseTag - brSegment.m_pb);
Exit:
return brTags;
}
/* ========================================================
CTemplate::BrValueOfTag
Returns a tag's value from a byte range; null if tag is not found
NOTE value search algorithm per W3 HTML spec - see www.w3.org
Returns
byte range of tag's value
pfTagExists - does the tag exist in tags byte range? (out-parameter)
NOTE we default *pfTagExists = TRUE; most callers don't care and omit this parameter
Side effects
none
*/
CByteRange
CTemplate::BrValueOfTag
(
CByteRange brTags, // tags byte range
_TOKEN tknTagName // tag name token
)
{
CByteRange brTemp = brTags; // temp byte range
CByteRange brValue; // byte range of value for the given tag - NOTE constructed null
char chDelimiter = NULL; // value delimiter
// ptr to tag name
BYTE* pbTagName = GetTagName(brTags, tknTagName);
// If we did not find tag, return
if(pbTagName == NULL)
return brValue;
// Move past tag name token and pre-separator white space
brTemp.Advance(DIFF(pbTagName - brTags.m_pb) + CCH_TOKEN(tknTagName));
LTrimWhiteSpace(brTemp);
if(brTemp.IsNull())
goto Exit;
// If we did not find separator, return
if(*brTemp.m_pb != CH_ATTRIBUTE_SEPARATOR)
goto Exit;
// Move past separator and post-separator white space
brTemp.Advance(sizeof(CH_ATTRIBUTE_SEPARATOR));
LTrimWhiteSpace(brTemp);
if(brTemp.IsNull())
goto Exit;
// If value begins with a quote mark, cache it as delimiter
if((*brTemp.m_pb == CH_SINGLE_QUOTE) || (*brTemp.m_pb == CH_DOUBLE_QUOTE))
chDelimiter = *brTemp.m_pb;
if(chDelimiter)
{
// move past delimiter
brTemp.Advance(sizeof(chDelimiter));
if(brTemp.IsNull())
goto Exit;
}
// provisionally set value to temp byte range
brValue = brTemp;
// advance temp byte range to end of value range
while(
(chDelimiter && (*brTemp.m_pb != chDelimiter)) // if we have a delimiter, find next delimiter
|| (!chDelimiter && (!FWhiteSpace(*brTemp.m_pb))) // if we have no delimiter, find next white space
)
{
// advance temp byte range
brTemp.Advance(1);
if(brTemp.IsNull())
{
if(chDelimiter)
// we found no closing delimiter, so error out
ThrowErrorSingleInsert(brValue.m_pb, IDE_TEMPLATE_NO_ATTRIBUTE_DELIMITER,
pbTagName, CCH_TOKEN(tknTagName));
else
// value runs to end of temp byte range, so exit (since we already init'ed to temp)
goto Exit;
}
}
// set byte count so that value points to delimited range
brValue.m_cb = DIFF(brTemp.m_pb - brValue.m_pb);
Exit:
// if tag is empty, raise an error
if (brValue.IsNull())
{
ThrowErrorSingleInsert(brTags.m_pb, IDE_TEMPLATE_VALUE_REQUIRED, pbTagName, CCH_TOKEN(tknTagName));
}
// enforce mandatory tag values if required
if(tknTagName == CTokenList::tknTagRunat)
{
if(!brValue.FMatchesSz(SZ_TOKEN(CTokenList::tknValueServer)))
ThrowError(brTags.m_pb, IDE_TEMPLATE_RUNAT_NOT_SERVER);
}
return brValue;
}
/* ============================================================================
CTemplate::CompTagName
Compares characters in two buffers (case-insensitive) and returns TRUE or FALSE
Side effects
none
*/
BOOL
CTemplate::CompTagName
(
CByteRange &brTags, // tags byte range
_TOKEN tknTagName // tag name token
)
{
CByteRange brTemp = brTags; // local byte range, so we don't change tags byte range
UINT cbAttributeName = CCH_TOKEN(tknTagName); // length of tag name
LPSTR pszAttributeName = SZ_TOKEN(tknTagName); // tag name string
// search for potential matches on tag name string, case-insensitive
if(!brTemp.IsNull())
if( 0 == _memicmp( brTemp.m_pb, pszAttributeName, cbAttributeName ))
return TRUE;
return FALSE;
}
/* ============================================================================
CTemplate::GetTagName
Returns a ptr to a tag name in a byte range; null if not found
Returns
ptr to tag name
Side effects
none
*/
BYTE*
CTemplate::GetTagName
(
CByteRange brTags, // tags byte range
_TOKEN tknTagName // tag name token
)
{
CByteRange brTemp = brTags; // local byte range, so we don't change tags byte range
UINT cbAttributeName = CCH_TOKEN(tknTagName); // length of tag name
LPSTR pszAttributeName = SZ_TOKEN(tknTagName); // tag name string
// PREFIX: pszAttributeName could be NULL, though I don't think that can happen.
Assert (pszAttributeName != NULL);
while(TRUE)
{
// search for potential matches on tag name string, case-insensitive
while(!brTemp.IsNull())
{
if(0 == _strnicmp((char*)brTemp.m_pb, pszAttributeName, cbAttributeName ))
break;
brTemp.Advance(1);
}
// if we did not find tag name string at all, return 'not found'
if(brTemp.IsNull())
goto NotFound;
// if it is a valid HTML tag name, return it
if(FTagName(brTemp.m_pb, cbAttributeName))
goto Exit;
// if we found a matching but invalid substring, advance beyond it so we can search again
brTemp.Advance(cbAttributeName);
// if we have exhausted search range, return 'not found'
if(brTemp.IsNull())
goto NotFound;
}
Exit:
return brTemp.m_pb;
NotFound:
return NULL;
}
/* ============================================================================
CTemplate::GetTag
Returns a ptr to a tag name in a byte range; null if not found
Returns
ptr to tag name
Side effects
none
*/
BOOL
CTemplate::GetTag
(
CByteRange &brTags, // tags byte range
int nIndex
)
{
CByteRange brTemp = brTags; // local byte range, so we don't change tags byte range
int nTIndex = 0;
while(TRUE)
{
// locate the start of a tag by skipping past the script tag "<%" and any leading white space
//
while(!brTemp.IsNull())
{
if( *brTemp.m_pb == '<' ||
*brTemp.m_pb == '%' ||
*brTemp.m_pb == '@' ||
FWhiteSpace(*brTemp.m_pb))
{
brTemp.Advance(1);
brTags.Advance(1);
}
else
break;
}
// search for potential matches on tag name string, case-insensitive
//
while(!brTemp.IsNull())
{
if( *brTemp.m_pb == '=' || FWhiteSpace(*brTemp.m_pb))
{
nTIndex++;
break;
}
brTemp.Advance(1);
}
// if we did not find tag name string at all, return 'not found'
if(brTemp.IsNull())
goto NotFound;
// if it is a valid HTML tag name, return it
if(FTagName(brTags.m_pb, DIFF(brTemp.m_pb - brTags.m_pb)))
if(nTIndex >= nIndex)
goto Exit;
// position past named pair data and reset start and if end of byte range then
// goto NotFound
//
while(!brTemp.IsNull() && !FWhiteSpace(*brTemp.m_pb))
brTemp.Advance(1);
if(brTemp.IsNull())
goto NotFound;
else
brTags.Advance(DIFF(brTemp.m_pb - brTags.m_pb));
}
Exit:
return TRUE;
NotFound:
return FALSE;
}
/* ============================================================================
CTemplate::FTagHasValue
Do tags include tknTag=tknValue?
Returns
TRUE if tags include value, else FALSE
Side effects
none
*/
BOOLB
CTemplate::FTagHasValue
(
const CByteRange& brTags, // tags byte range to search
_TOKEN tknTag, // tag token
_TOKEN tknValue // value token
)
{
return (BrValueOfTag(brTags, tknTag) // byte range of value
.FMatchesSz(SZ_TOKEN(tknValue)));
}
/* =========================
CTemplate::CopySzAdv
Copies a string to a ptr and advances the ptr just beyond the copied string.
Returns
Nothing
Side effects
advances ptr beyond copied string
*/
void
CTemplate::CopySzAdv
(
char* pchWrite, // write location ptr
LPSTR psz // string to copy
)
{
strcpy(pchWrite, psz);
pchWrite += strlen(psz);
}
/* ============================================================================
CTemplate::ValidateSourceFiles
Returns
Side effects
none
*/
BOOL CTemplate::ValidateSourceFiles
(
CIsapiReqInfo* pIReq
)
{
FILETIME ftLastWriteTime;
HRESULT hr = S_OK;
BOOL fImpersonatedUser = FALSE;
HANDLE hVirtIncImpToken = NULL;
HANDLE hCurImpToken = NULL;
for (UINT i=0;i<m_cFilemaps;i++)
{
fImpersonatedUser = FALSE;
hVirtIncImpToken = NULL;
hCurImpToken = NULL;
//
// If it target file is a UNC , then we need to Impersonate LoggedOnUser.
//
if (m_rgpFilemaps[i]->FHasUNCPath())
{
if (SUCCEEDED(pIReq->GetVirtualPathToken(m_rgpFilemaps[i]->m_szPathInfo, &hVirtIncImpToken)))
{
AspDoRevertHack(&hCurImpToken);
fImpersonatedUser = ImpersonateLoggedOnUser(hVirtIncImpToken);
if (!fImpersonatedUser)
AspUndoRevertHack(&hCurImpToken);
}
}
hr = AspGetFileAttributes (m_rgpFilemaps[i]->m_szPathTranslated,
m_rgpFilemaps[i]->m_hFile,
&ftLastWriteTime);
//
// Undo impersonation if any.
//
if (fImpersonatedUser)
AspUndoRevertHack(&hCurImpToken);
if (hVirtIncImpToken)
CloseHandle(hVirtIncImpToken);
//
// Check if the Files timestamp changed
//
if (SUCCEEDED(hr))
{
if (CompareFileTime(&(m_rgpFilemaps[i]->m_ftLastWriteTime), &ftLastWriteTime) != 0)
{
DBGPRINTF ((DBG_CONTEXT,"VALIDATE SOUCE FILES : Template is Invalid\n"));
return FALSE;
}
}
else
return FALSE;
}
m_dwLastMonitored = GetTickCount();
m_dwCacheTag = g_TemplateCache.GetCacheTag();
m_fInCheck = FALSE;
return TRUE;
}
/* ============================================================================
CTemplate::FNeedsValidation
Returns
Side effects
none
*/
BOOL CTemplate::FNeedsValidation ( )
{
if (m_fNeedsMonitoring)
{
if (m_fInCheck == FALSE)
{
if ( m_dwCacheTag != g_TemplateCache.GetCacheTag() && !g_fLazyContentPropDisabled)
{
m_fInCheck = TRUE;
return TRUE;
}
BOOL bRet = CheckTTLTimingWindow (m_dwLastMonitored, g_dwFileMonitoringTimeoutSecs);
if (bRet)
m_fInCheck=TRUE;
return bRet;
}
}
return FALSE;
}
/* ============================================================================
CTemplate::CheckTTLTimingWindow
Checks if the current time is withing Timeout seconds from the dwLastMonitored timestamp.
If it is within the window it returns false. And if its outside the timeing window then it will return TRUE
Returns
TRUE = Current Time is beyond TTL (timeoutsecs) from lastmod time.
FALSE = Current Time is within TTL (timeoutsecs) of lastmod time.
Side effects
none
*/
BOOL CTemplate::CheckTTLTimingWindow(DWORD dwLastMonitored, DWORD timeoutSecs)
{
BOOL bRet = FALSE;
DWORD currentTime= GetTickCount();
if ( currentTime > (dwLastMonitored + (timeoutSecs *1000)) || currentTime < dwLastMonitored)
{
// This could also be a false Positive that will last just for a couple of minutes
// around the 47 day period when getTickCount wraps around.
if (((dwLastMonitored +(timeoutSecs *1000)) < dwLastMonitored) &&
(currentTime > dwLastMonitored))
{
// Found that tiny-tiny case where we would get a false positive.
bRet = FALSE;
}
// This file could not have been checked in the last dwTimeoutSecs time period.
bRet = TRUE;
}
return bRet;
}
/* ============================================================================
CTemplate::FVbsComment
Determines whether a script line is a VBS comment.
NOTE caller must ensure that brLine is non-blank and has no leading white space
Returns
TRUE if the line is a VBS comment, else FALSE
Side effects
none
*/
BOOLB
CTemplate::FVbsComment(CByteRange& brLine)
{
// CONSIDER: SCRIPTLANG generic comment token
if(!_strnicmp((LPCSTR)brLine.m_pb, SZ_TOKEN(CTokenList::tknVBSCommentSQuote), CCH_TOKEN(CTokenList::tknVBSCommentSQuote)))
return TRUE;
if(!_strnicmp((LPCSTR)brLine.m_pb, SZ_TOKEN(CTokenList::tknVBSCommentRem), CCH_TOKEN(CTokenList::tknVBSCommentRem)))
return TRUE;
return FALSE;
}
/* ============================================================================
CTemplate::FExpression
Determines whether a script line is an expression, and if so returns
just the expression in brLine.
NOTE caller must ensure that brLine has no leading white space
Returns
TRUE if the line is an expression, else FALSE
Side effects
none
*/
BOOLB
CTemplate::FExpression(CByteRange& brLine)
{
// may be whitespace (other languages besides VB & JScript will have whitespace)
char *pchLine = reinterpret_cast<char *>(brLine.m_pb);
int cchLine = brLine.m_cb;
while (cchLine > 0 && FWhiteSpace(*pchLine))
{
--cchLine;
++pchLine;
}
// if line starts with =, it is an expression: bypass =, left-trim whitespace and return true
if(cchLine > 0 && *pchLine == '=')
{
brLine.Advance(1 + DIFF(reinterpret_cast<BYTE *>(pchLine) - brLine.m_pb)); // OK to advance past whitespace now.
LTrimWhiteSpace(brLine);
return TRUE;
}
// else return false
return FALSE;
}
/**
** In the following function names:
** 'Adv' == 'advance offset after writing'
**/
/* ============================================================================
CTemplate::WriteOffsetToOffset
Writes a offset-to-offset offset (0 if no blocks) into header,
and advances header offset and offset-to-offset.
Returns:
Nothing.
Side effects:
Advances offsets.
*/
void
CTemplate::WriteOffsetToOffset
(
USHORT cBlocks, // count of blocks
UINT* pcbHeaderOffset, // ptr to header offset value
UINT* pcbOffsetToOffset // ptr to offset-to-offset value
)
{
// if blocks of this type, write offset to first of them into header;
// if no blocks of this type, write 0 into header
WriteLongAdv((cBlocks > 0) ? *pcbOffsetToOffset : 0, pcbHeaderOffset);
// advance offset-to-offset offset
*pcbOffsetToOffset += cBlocks * sizeof(ULONG);
}
/* ============================================================================
CTemplate::WriteSzAsBytesAdv
Writes a null-terminated string as bytes, i.e. without its null terminator
and advances offset
Returns:
Nothing.
Side effects:
Advances offset.
*/
void
CTemplate::WriteSzAsBytesAdv
(
LPCSTR szSource, // source string
UINT* pcbDataOffset // ptr to offset value
)
{
if((szSource == NULL) || (*szSource == '\0'))
return;
MemCpyAdv(pcbDataOffset, (void*) szSource, strlen(szSource));
}
/* ============================================================================
CTemplate::WriteByteRangeAdv
Writes a byte range to memory at template offset location *pcbDataOffset and, optionally,
writes a ptr to the written data at template offset location *pcbPtrOffset
(pass *pcbPtrOffset == 0 to avoid this)
fWriteAsBsz == FALSE --> write only byte range's data
fWriteAsBsz == TRUE --> write length, followed by data, followed by NULL
NOTE bsz == length-prefixed, null-terminated string
Returns:
Nothing.
Side effects:
Advances offset(s).
*/
void
CTemplate::WriteByteRangeAdv
(
CByteRange& brSource, // source data
BOOLB fWriteAsBsz, // write as bsz?
UINT* pcbDataOffset, // offset where data will be written
UINT* pcbPtrOffset // offset where ptr will be written
)
{
// bail if source is empty
if(brSource.IsNull())
return;
// If writing as a bsz, write length prefix
if(fWriteAsBsz)
WriteLongAdv(brSource.m_cb, pcbDataOffset);
// Write data
MemCpyAdv(pcbDataOffset, brSource.m_pb, brSource.m_cb);
// If writing as a bsz, write null terminator and advance target ptr
if(fWriteAsBsz)
MemCpyAdv(pcbDataOffset, SZ_NULL, 1);
// If caller passed a non-zero ptr offset, write offset to data there
if(*pcbPtrOffset > 0)
{
if(fWriteAsBsz)
/* if writing as a bsz ...
offset to start of data == current data offset
- null terminator
- data length
- sizeof length prefix
*/
WriteLongAdv(*pcbDataOffset - 1 - brSource.m_cb - sizeof(brSource.m_cb), pcbPtrOffset);
else
// else, offset to start of data == current data offset - data length
WriteLongAdv(*pcbDataOffset - brSource.m_cb, pcbPtrOffset);
}
}
/*===================================================================
CTemplate::MemCpyAdv
Copies from a memory location to a template offset location,
and advances offset.
Returns:
Nothing.
Side effects:
Advances offset.
Re-allocates memory if required.
*/
void
CTemplate::MemCpyAdv
(
UINT* pcbOffset, // ptr to offset value
void* pbSource, // ptr to source
ULONG cbSource, // length of source
UINT cbByteAlign // align bytes on short/long/dword boundary?
)
{
// byte-align offset location before write, if specified by caller
if(cbByteAlign > 0)
ByteAlignOffset(pcbOffset, cbByteAlign);
// calc number of bytes by which to grow allocated template memory:
// if projected reach exceeds current reach, we need to grow by the difference;
// else, no need to grow
if((*pcbOffset + cbSource) > m_cbTemplate)
{
// Reallocate space for storing local data - we grab twice what we had before
// or twice current growth requirement, whichever is more
m_cbTemplate = 2 * max(m_cbTemplate, (*pcbOffset + cbSource) - m_cbTemplate);
if(NULL == (m_pbStart = (BYTE*) CTemplate::LargeReAlloc(m_pbStart, m_cbTemplate)))
THROW(E_OUTOFMEMORY);
}
// copy source to template offset location
memcpy(m_pbStart + *pcbOffset, pbSource, cbSource);
// advance offset location
*pcbOffset += cbSource;
}
/* ============================================================================
CTemplate::GetAddress
Returns a ptr to the i-th object of type tcomp
*/
BYTE*
CTemplate::GetAddress
(
TEMPLATE_COMPONENT tcomp,
USHORT i
)
{
DWORD* pdwBase;
Assert(NULL != m_pbStart);
// refer to CTemplate::WriteTemplate comments for the structure of what this is dealing with
pdwBase = (DWORD*)(m_pbStart + (C_COUNTS_IN_HEADER * sizeof(USHORT)));
// tcomp types are ptr-to-ptrs
DWORD* pdwTcompBase = (DWORD *) (m_pbStart + pdwBase[tcomp]);
return m_pbStart + pdwTcompBase[i];
}
/* ============================================================================
CTemplate::AppendSourceInfo
Appends a source line number for the current target line
NOTE if caller passes null source ptr, we append prev source line number + 1
Returns
Nothing
Side effects
allocates memory first time thru; may realloc
*/
void
CTemplate::AppendSourceInfo
(
USHORT idEngine, // script engine id
CFileMap* pfilemap, // ptr to source file map
BYTE* pbSource, // ptr to current location in source file
ULONG cbSourceOffset, // byte offset of line in source file
ULONG cbScriptBlockOffset, // pointer to start of script text
ULONG cbTargetOffset, // character offset of line in target file
ULONG cchSourceText, // # of characters in source text
BOOL fIsHTML // TRUE if manufactured line
)
{
UINT i; // loop index
CSourceInfo si; // temporary CSourceInfo structure
vector<CSourceInfo> *prgSourceInfos; // pointer to line mapping table for the engine
ULONG cchSourceOffset = 0;// cch corresponding to cbSourceOffset
HRESULT hr = S_OK;
// if arrays are not yet allocated, allocate them
if (m_rgrgSourceInfos == NULL)
{
// transfer count of script engines from workstore to template
m_cScriptEngines = m_pWorkStore->CRequiredScriptEngines(m_fGlobalAsa);
// one source-info array per engine
if ((m_rgrgSourceInfos = new vector<CSourceInfo>[m_cScriptEngines]) == NULL)
THROW (E_OUTOFMEMORY);
}
// new script engine must be allocated in IdEngineFromBr (way upstream of this point),
// so we assert that current engine must already be covered
Assert(idEngine < m_pWorkStore->CRequiredScriptEngines(m_fGlobalAsa));
/* set current target line's source line number (SLN):
a) if caller passed a source ptr, calc SLN from the source ptr;
b) else if caller passed a filemap ptr, set SLN to prev target line's SLN plus one;
c) else set SLN to 0
semantics:
a) we have a source file location, but must calc a line # for that location
b) caller tells us (by passing NULL source file location) that this target line
immediately follows prev target line. This is an optimization because
SourceLineNumberFromPb is very slow.
change:
caller used to pass NULL filemap ptr that target line is 'manufactured'
i.e. has no corresponding authored line in source file
HOWEVER - now filemap ptr must NOT be NULL because 'manufactured' lines
are also stored in the file map array
*/
Assert (pfilemap != NULL);
prgSourceInfos = &m_rgrgSourceInfos[idEngine];
if (pbSource == NULL)
{
if (prgSourceInfos->length() == 0)
si.m_idLine = 1;
else
si.m_idLine = (*prgSourceInfos)[prgSourceInfos->length() - 1].m_idLine + 1;
}
else
si.m_idLine = SourceLineNumberFromPb(pfilemap, pbSource);
// The EOF line does not have a source offset (caller passes -1 (UINT_MAX)). For this case, no
// DBCS calculations etc. should be done. (set cchSourceOffset to UINT_MAX).
if (cbSourceOffset == UINT_MAX)
cchSourceOffset = UINT_MAX;
else
{
// BUG 80901: Source offset needs to point to the beginning of leading white space on the line
// Adjust source length by one as we decrement source offset
// Note: whitepsace is never trailing byte, so loop will work with DBCS encoded character sets
while (cbSourceOffset > 0 && strchr(" \t\v\a\f", pfilemap->m_pbStartOfFile[cbSourceOffset - 1]))
{
--cbSourceOffset;
++cchSourceText;
}
// BUG 95859
// If the cursor is on the opening token of a script block (the "<%" part of a line), the
// BP is set in the previous HTML, not in the script block, as is desired.
//
// To correct this, if we are in a script block, scan back two characters, see if it is the open
// token. If it is, set the offset back two, and add two to the length.
//
if (!fIsHTML)
{
// Skip whitespace (including newlines -- the previous step did not skip newlines)
//
ULONG cbOpen = cbSourceOffset;
while (cbOpen > 0 && strchr(" \t\v\a\f\r\n", pfilemap->m_pbStartOfFile[cbOpen - 1]))
--cbOpen;
if (cbOpen >= 2 && strncmp(reinterpret_cast<char *>(&pfilemap->m_pbStartOfFile[cbOpen - 2]), "<%", 2) == 0)
{
cbOpen -= 2;
cchSourceText += cbSourceOffset - cbOpen;
cbSourceOffset = cbOpen;
}
// Look for trailing "%>" in this snippet, and if it exists then include the end delimiter in
// the length. NOTE: No DBCS awareness needed here - if we find a lead byte we just get out
// of the loop. We are looking for <whitespace>*"%>" which is totally SBCS chars.
//
ULONG cbClose = cbSourceOffset + cchSourceText;
ULONG cbFile = pfilemap->GetSize();
while (cbClose < cbFile && strchr(" \t\v\a\f\r\n", pfilemap->m_pbStartOfFile[cbClose]))
++cbClose;
if (cbClose < cbFile && strncmp(reinterpret_cast<char *>(&pfilemap->m_pbStartOfFile[cbClose]), "%>", 2) == 0)
cchSourceText += cbClose - (cbSourceOffset + cchSourceText) + 2;
}
// BUG 82222, 85584
// Compiler marks HTML segments starting with the newline on the previous line
// if the line ends with %>.
//
// This screws up the debugger, becasue when you press <F9>, the pointer is placed
// on the line above when it should point to the start of the whitespace on the next line.
if (fIsHTML)
{
UINT cbEOF = pfilemap->GetSize(), cbRover = cbSourceOffset;
// Skip initial whitespace
while (cbRover < cbEOF && strchr(" \t\a\f", pfilemap->m_pbStartOfFile[cbRover]))
++cbRover;
// If what's left is a CR/LF pair, then advance cbSourceOffset to next line
BOOL fCR = FALSE, fLF = FALSE;
if (cbRover < cbEOF && strchr("\r\n", pfilemap->m_pbStartOfFile[cbRover]))
{
fCR = pfilemap->m_pbStartOfFile[cbRover] == '\r';
fLF = pfilemap->m_pbStartOfFile[cbRover] == '\n';
++cbRover;
Assert (fCR || fLF);
}
// we allow either <CR>, <LF>, <CR><LF>, or <LF><CR> to terminate a line,
// so look for its opposite terminator if one is found (but don't require it)
if (fCR && cbRover < cbEOF && pfilemap->m_pbStartOfFile[cbRover] == '\n')
++cbRover;
if (fLF && cbRover < cbEOF && pfilemap->m_pbStartOfFile[cbRover] == '\r')
++cbRover;
// OK, adjust cbSourceOffset now
if ((fCR || fLF) && cbRover < cbEOF)
{
cchSourceText -= cbRover - cbSourceOffset; // adjust # of chars to select
cbSourceOffset = cbRover;
}
}
// Now that we have the source offset, calculate its CCH by finding
// the last time we sampled the value, then add that to the number
// of DBCS characters from that point to the current offset.
//
// For the case of includes, it's possible offset already exists
// (if the entry was previously generated by another instance of
// #include - therefore we have to search)
COffsetInfo *pOffsetInfoLE, *pOffsetInfoGE;
GetBracketingPair(
cbSourceOffset, // value to find
pfilemap->m_rgByte2DBCS.begin(), // beginning of array
pfilemap->m_rgByte2DBCS.end(), // end of array
CByteOffsetOrder(), // search for byte offset
&pOffsetInfoLE, &pOffsetInfoGE // return values
);
// If we find an equal match, don't insert any duplicates
if (pOffsetInfoLE == NULL || pOffsetInfoLE->m_cbOffset < cbSourceOffset)
{
// if pOffsetInfoLE is NULL, it means that the array is empty -
// create the mapping of offset 0 to offset 0.
//
// In the case of the first line of a file being an include directive,
// the first executable line from the file may not start at offset zero,
// so in this case we need to create this entry AND execute the next "if"
// block.
//
if (pOffsetInfoLE == NULL)
{
COffsetInfo oiZero; // ctor will init
if (FAILED(hr = pfilemap->m_rgByte2DBCS.append(oiZero)))
THROW(hr);
pOffsetInfoLE = pfilemap->m_rgByte2DBCS.begin();
Assert (pOffsetInfoLE != NULL);
}
// If cbSourceOffset is zero, we handled it above
if (cbSourceOffset != 0)
{
cchSourceOffset = pOffsetInfoLE->m_cchOffset +
CharAdvDBCS
(
(WORD)m_wCodePage,
reinterpret_cast<char *>(pfilemap->m_pbStartOfFile + pOffsetInfoLE->m_cbOffset),
reinterpret_cast<char *>(pfilemap->m_pbStartOfFile + cbSourceOffset),
INFINITE,
NULL
);
// Now add the value to the table
COffsetInfo oi;
oi.m_cchOffset = cchSourceOffset;
oi.m_cbOffset = cbSourceOffset;
if (pOffsetInfoGE == NULL) // No offset greater
hr = pfilemap->m_rgByte2DBCS.append(oi);
else
hr = pfilemap->m_rgByte2DBCS.insertAt(DIFF(pOffsetInfoGE - pfilemap->m_rgByte2DBCS.begin()), oi);
if (FAILED(hr))
THROW(hr);
}
}
else
{
// If we're not adding anything for the table, Assert it's because there's
// a duplicate item
Assert (cbSourceOffset == pOffsetInfoLE->m_cbOffset);
cchSourceOffset = pOffsetInfoLE->m_cchOffset;
}
}
UINT cchTargetOffset = UINT_MAX;
if (cbTargetOffset != UINT_MAX)
{
// ptr to start of script is:
// ptr start of template + offset to script + size of script length
LPSTR szScript = (LPSTR) m_pbStart + cbScriptBlockOffset;
// Calculate cchTargetOffset (have the cb). The cch is the number of characters since the
// last cch calculated in the end of the array.
//
if (prgSourceInfos->length() > 0)
cchTargetOffset = (*prgSourceInfos)[prgSourceInfos->length() - 1].m_cchTargetOffset;
else
cchTargetOffset = 0;
cchTargetOffset += CharAdvDBCS
(
(WORD) m_wCodePage,
&szScript[m_cbTargetOffsetPrevT],
&szScript[cbTargetOffset],
INFINITE,
NULL
);
// Keeps track of offsets during compilation
//
m_cbTargetOffsetPrevT = cbTargetOffset;
}
// Store this record and move on.
//
si.m_pfilemap = pfilemap;
si.m_fIsHTML = fIsHTML;
si.m_cchSourceOffset = cchSourceOffset;
si.m_cchTargetOffset = cchTargetOffset;
si.m_cchSourceText = cchSourceText;
if (FAILED(prgSourceInfos->append(si)))
THROW(hr);
}
/* ============================================================================
CTemplate::SourceLineNumberFromPb
Returns the starting source line number for the given source file location
*/
UINT
CTemplate::SourceLineNumberFromPb
(
CFileMap* pfilemap, // ptr to source file map
BYTE* pbSource // ptr to current location in source file
)
{
UINT cSourceLines = 1; // count of lines into source file
CByteRange brScan; // byte range to scan for newlines
CByteRange brSOL; // start-of-line ptr
if(pbSource == NULL || pfilemap == NULL)
return 0;
// Determine if there was a state stored on this ASP script earlier. If yes, then restore state.
// If the line being requested is prior to the saved state...Bail out and restart from the begining.
if(m_pWorkStore->m_cPrevSourceLines &&
(m_pWorkStore->m_pbPrevSource && (m_pWorkStore->m_pbPrevSource < pbSource)) &&
(m_pWorkStore->m_hPrevFile && (pfilemap->m_hFile==m_pWorkStore->m_hPrevFile)))
{
// The file handles match:with means that we are evaluating the current file. Restore state.
brScan.m_pb = m_pWorkStore->m_pbPrevSource;
brScan.m_cb = max(DIFF(pbSource - brScan.m_pb), 0);
cSourceLines = m_pWorkStore->m_cPrevSourceLines;
}
else
{
// set scan range to run from start-of-template to caller's ptr
brScan.m_pb = pfilemap->m_pbStartOfFile;
brScan.m_cb = max(DIFF(pbSource - brScan.m_pb), 0);
}
// get newlines in scan range
brSOL = BrNewLine(brScan);
while(!brSOL.IsNull())
{
// advance start-of-line ptr and scan byte range
brScan.Advance(DIFF((brSOL.m_pb + brSOL.m_cb) - brScan.m_pb));
// increment source line counter
cSourceLines++;
// find next newline
brSOL = BrNewLine(brScan);
}
// Store the state for the next call.
m_pWorkStore->m_pbPrevSource = pbSource;
m_pWorkStore->m_cPrevSourceLines = cSourceLines;
m_pWorkStore->m_hPrevFile = pfilemap->m_hFile;
return cSourceLines;
}
/* ============================================================================
CTemplate::RemoveFromIncFiles
Removes this template from inc-files on which it depends
Returns:
Nothing
Side effects:
None
*/
void
CTemplate::RemoveFromIncFiles
(
)
{
// NOTE we loop from 1 to count, since 0-th filemap is for main file
for(UINT i = 1; i < m_cFilemaps; i++)
{
if(NULL != m_rgpFilemaps[i]->m_pIncFile)
m_rgpFilemaps[i]->m_pIncFile->RemoveTemplate(this);
}
}
/* ****************************************************************************
IDebugDocumentProvider implementation
*/
/* ============================================================================
CTemplate::GetDocument
Return a pointer to the IDebugDocument implementation. (same object in this case)
Returns:
*ppDebugDoc is set to "this".
Notes:
always succeeds
*/
HRESULT CTemplate::GetDocument
(
IDebugDocument **ppDebugDoc
)
{
return QueryInterface(IID_IDebugDocument, reinterpret_cast<void **>(ppDebugDoc));
}
/* ============================================================================
CTemplate::GetName
Return the various names of a document.
*/
HRESULT CTemplate::GetName
(
/* [in] */ DOCUMENTNAMETYPE doctype,
/* [out] */ BSTR *pbstrName
)
{
TCHAR *szPathInfo = m_rgpFilemaps[0]->m_szPathInfo;
switch (doctype) {
case DOCUMENTNAMETYPE_APPNODE:
case DOCUMENTNAMETYPE_FILE_TAIL:
case DOCUMENTNAMETYPE_TITLE:
// Skip application path portion of the filename
{
// Make sure the template remembers the virtual path
// from the same application (it could be different
// if template is shared between two applications)
//
int cch = _tcslen(m_szApplnVirtPath);
if (_tcsncicmp(szPathInfo, m_szApplnVirtPath, cch) == 0)
szPathInfo += cch;
// Strip leading '/'
if (*szPathInfo == _T('/'))
szPathInfo++;
#if UNICODE
*pbstrName = SysAllocString(szPathInfo);
if (*pbstrName == NULL)
return E_OUTOFMEMORY;
return S_OK;
#else
return SysAllocStringFromSz(szPathInfo, 0, pbstrName, m_wCodePage);
#endif
}
case DOCUMENTNAMETYPE_URL:
// prefix with the URL, use szPathInfo for the rest of the path
{
STACK_BUFFER( tempName, MAX_PATH );
int cbURLPrefix = DIFF(m_szApplnVirtPath - m_szApplnURL) * sizeof (TCHAR);
if (!tempName.Resize(cbURLPrefix + (_tcslen(szPathInfo)*sizeof(TCHAR)) + sizeof(TCHAR))) {
return E_OUTOFMEMORY;
}
TCHAR *szURL = (TCHAR *)tempName.QueryPtr();
memcpy(szURL, m_szApplnURL, cbURLPrefix);
_tcscpy(&szURL[cbURLPrefix/sizeof(TCHAR)], szPathInfo);
#if UNICODE
*pbstrName = SysAllocString(szURL);
if (*pbstrName == NULL)
return E_OUTOFMEMORY;
return S_OK;
#else
return SysAllocStringFromSz(szURL, 0, pbstrName, m_wCodePage);
#endif
}
default:
return E_FAIL;
}
}
/* ****************************************************************************
IDebugDocumentText implementation
*/
/* ============================================================================
CTemplate::GetSize
Return the number of lines & characters in the document
*/
HRESULT CTemplate::GetSize
(
/* [out] */ ULONG *pcLines,
/* [out] */ ULONG *pcChars
)
{
/*
* NOTE: compilation is done in two phases.
* Errors are detected and reported in phase 1.
* The DBCS mapping is created in phase 2.
*
* If an error occurred during compilation, m_cChars will be equal to zero
* (Since zero length files are not compiled, m_cChars == 0 means "size
* is unknown", not "size is zero").
*/
if (m_rgpFilemaps[0]->m_cChars == 0)
{
// Likely need to remap the file, then count
BOOL fRemapTemplate = !m_rgpFilemaps[0]->FIsMapped();
if (fRemapTemplate)
TRY
m_rgpFilemaps[0]->RemapFile();
CATCH (dwException)
return E_FAIL;
END_TRY
m_rgpFilemaps[0]->CountChars((WORD)m_wCodePage);
if (fRemapTemplate)
TRY
m_rgpFilemaps[0]->UnmapFile();
CATCH (dwException)
return E_FAIL;
END_TRY
// let's hope client is not relying on # of lines - expensive to compute
*pcChars = m_rgpFilemaps[0]->m_cChars;
*pcLines = ULONG_MAX;
}
else
{
/* The last line in the line mapping array of each engine is the <<EOF>> line
* for that engine. Therefore, the # of lines is the largest <<EOF>> line
* number - 1. The EOF line always points into the main file, so there are no
* include file glitches here.
*/
ULONG cLinesMax = 0;
for (UINT i = 0; i < m_cScriptEngines; ++i)
{
ULONG cLinesCurrentEngine = m_rgrgSourceInfos[0][m_rgrgSourceInfos[0].length() - 1].m_idLine - 1;
if (cLinesCurrentEngine > cLinesMax)
cLinesMax = cLinesCurrentEngine;
}
*pcLines = cLinesMax;
*pcChars = m_rgpFilemaps[0]->m_cChars;
}
IF_DEBUG(SCRIPT_DEBUGGER) {
#if UNICODE
DBGPRINTF((DBG_CONTEXT, "GetSize(\"%S\") returns %lu characters (%lu lines)\n", m_rgpFilemaps[0]->m_szPathTranslated, *pcChars, *pcLines));
#else
DBGPRINTF((DBG_CONTEXT, "GetSize(\"%s\") returns %lu characters (%lu lines)\n", m_rgpFilemaps[0]->m_szPathTranslated, *pcChars, *pcLines));
#endif
}
return S_OK;
}
/* ============================================================================
CTemplate::GetDocumentAttributes
Return doc attributes
*/
HRESULT CTemplate::GetDocumentAttributes
(
/* [out] */ TEXT_DOC_ATTR *ptextdocattr
)
{
// Easy way to tell debugger that we don't support editing.
*ptextdocattr = TEXT_DOC_ATTR_READONLY;
return S_OK;
}
/* ============================================================================
CTemplate::GetPositionOfLine
From a line number, return the character offset of the beginning
*/
HRESULT CTemplate::GetPositionOfLine
(
/* [in] */ ULONG cLineNumber,
/* [out] */ ULONG *pcCharacterPosition
)
{
return GetPositionOfLine(m_rgpFilemaps[0], cLineNumber, pcCharacterPosition);
}
/* ============================================================================
CTemplate::GetLineOfPosition
From a character offset, return the line number and offset within the line
*/
HRESULT CTemplate::GetLineOfPosition
(
/* [in] */ ULONG cCharacterPosition,
/* [out] */ ULONG *pcLineNumber,
/* [out] */ ULONG *pcCharacterOffsetInLine
)
{
return GetLineOfPosition(m_rgpFilemaps[0], cCharacterPosition, pcLineNumber, pcCharacterOffsetInLine);
}
/* ============================================================================
CTemplate::GetText
From a character offset and length, return the document text
*/
HRESULT CTemplate::GetText
(
ULONG cchSourceOffset,
WCHAR *pwchText,
SOURCE_TEXT_ATTR *pTextAttr,
ULONG *pcChars,
ULONG cMaxChars
)
{
return m_rgpFilemaps[0]->GetText((WORD)m_wCodePage, cchSourceOffset, pwchText, pTextAttr, pcChars, cMaxChars);
}
/* ============================================================================
CTemplate::GetPositionOfContext
Decompose a document context into the document offset & length
*/
HRESULT CTemplate::GetPositionOfContext
(
/* [in] */ IDebugDocumentContext *pUnknownDocumentContext,
/* [out] */ ULONG *pcchSourceOffset,
/* [out] */ ULONG *pcchText
)
{
// Make sure that the context is one of ours
CTemplateDocumentContext *pDocumentContext;
if (FAILED(pUnknownDocumentContext->QueryInterface(IID_IDenaliTemplateDocumentContext, reinterpret_cast<void **>(&pDocumentContext))))
return E_FAIL;
if (pcchSourceOffset)
*pcchSourceOffset = pDocumentContext->m_cchSourceOffset;
if (pcchText)
*pcchText = pDocumentContext->m_cchText;
pDocumentContext->Release();
return S_OK;
}
/* ============================================================================
CTemplate::GetContextOfPosition
Given the character position & number of characters in the document,
encapsulate this into a document context object.
*/
HRESULT CTemplate::GetContextOfPosition
(
/* [in] */ ULONG cchSourceOffset,
/* [in] */ ULONG cchText,
/* [out] */ IDebugDocumentContext **ppDocumentContext
)
{
if (
(*ppDocumentContext = new CTemplateDocumentContext(this, cchSourceOffset, cchText))
== NULL
)
return E_OUTOFMEMORY;
return S_OK;
}
/* ****************************************************************************
IConnectionPointContainer implementation
*/
/* ============================================================================
CTemplate::FindConnectionPoint
From a character offset and length, return the document text
*/
HRESULT CTemplate::FindConnectionPoint
(
const GUID &uidConnection,
IConnectionPoint **ppCP
)
{
if (uidConnection == IID_IDebugDocumentTextEvents)
return m_CPTextEvents.QueryInterface(IID_IConnectionPoint, reinterpret_cast<void **>(ppCP));
else
{
*ppCP = NULL;
return E_NOINTERFACE;
}
}
/* ============================================================================
CTemplate::AttachTo
attach this to the debugger UI tree view.
*/
HRESULT CTemplate::AttachTo
(
CAppln *pAppln
)
{
if (!m_fDontAttach && pAppln->FDebuggable())
{
// If we are already attached to this application, then ignore 2nd request
CDblLink *pNodeCurr = m_listDocNodes.PNext();
while (pNodeCurr != &m_listDocNodes)
{
if (pAppln == static_cast<CDocNodeElem *>(pNodeCurr)->m_pAppln)
return S_OK;
pNodeCurr = pNodeCurr->PNext();
}
// Create the node and store it in the linked list.
HRESULT hr;
IDebugApplicationNode *pDocRoot;
CDocNodeElem *pDocNodeElem;
// Create a document tree, showing the include file hierarchy
if (FAILED(hr = CreateDocumentTree(m_rgpFilemaps[0], &pDocRoot)))
return hr;
if (FAILED(hr = pDocRoot->Attach(pAppln->PAppRoot())))
return hr;
if ((pDocNodeElem = new CDocNodeElem(pAppln, pDocRoot)) == NULL)
return E_OUTOFMEMORY;
pDocNodeElem->AppendTo(m_listDocNodes);
pDocRoot->Release();
m_fDebuggable = TRUE;
}
return S_OK;
}
/* ============================================================================
CTemplate::DetachFrom
detach this from the debugger UI tree view.
*/
HRESULT CTemplate::DetachFrom
(
CAppln *pAppln
)
{
// Enter the CS to prevent Detach() from detaching while we are scanning
// the list (causes application ptr to be deleted twice if this occurs)
DBG_ASSERT(m_fDebuggerDetachCSInited);
EnterCriticalSection(&m_csDebuggerDetach);
// Look for the node that has this application
CDblLink *pNodeCurr = m_listDocNodes.PNext();
while (pNodeCurr != &m_listDocNodes)
{
if (pAppln == static_cast<CDocNodeElem *>(pNodeCurr)->m_pAppln)
break;
pNodeCurr = pNodeCurr->PNext();
}
// If not found (pNodeCurr points back to head), then fail
if (pNodeCurr == &m_listDocNodes)
{
LeaveCriticalSection(&m_csDebuggerDetach);
return E_FAIL;
}
// Detach the node by deleting the current element
delete pNodeCurr;
// Turn off "Debuggable" flag if last application is detached
m_fDebuggable = !m_listDocNodes.FIsEmpty();
// At this point CS not needed
LeaveCriticalSection(&m_csDebuggerDetach);
// If we have just removed ourselves from the last application,
// then we call Detach(), to remove all cached script engines now.
if (!m_fDebuggable)
Detach();
return S_OK;
}
/* ============================================================================
CTemplate::Detach
detach this from the debugger UI tree view.
*/
HRESULT CTemplate::Detach
(
)
{
// Enter the CS to prevent DetachFrom() from detaching while we are clearing
// the list (causes application ptr to be deleted twice if this occurs)
if (m_fDebuggerDetachCSInited)
EnterCriticalSection(&m_csDebuggerDetach);
// Detach all nodes
while (! m_listDocNodes.FIsEmpty())
delete m_listDocNodes.PNext();
// Done with CS
if (m_fDebuggerDetachCSInited)
LeaveCriticalSection(&m_csDebuggerDetach);
// Since we are not debuggable now, remove any script engines we may
// be holding on to. If we are detaching from change notification
// thread, queue engines to be released from debugger thread.
//
if (m_rgpDebugScripts)
{
Assert (g_dwDebugThreadId != 0);
BOOL fCalledFromDebugActivity = GetCurrentThreadId() == g_dwDebugThreadId;
for (UINT i = 0; i < m_cScriptEngines; i++)
{
CActiveScriptEngine *pEngine = m_rgpDebugScripts[i];
if (pEngine)
{
if (fCalledFromDebugActivity)
{
pEngine->FinalRelease();
}
else
{
g_ApplnMgr.AddEngine(pEngine);
pEngine->Release();
}
}
}
delete[] m_rgpDebugScripts;
m_rgpDebugScripts = NULL;
}
m_fDebuggable = FALSE;
return S_OK;
}
/* ============================================================================
CTemplate::CreateDocumentTree
Traverse the tree that we have embedded in the filemap structures,
and use it to create the include file structure
*/
HRESULT CTemplate::CreateDocumentTree
(
CFileMap *pfilemapRoot,
IDebugApplicationNode **ppDocRoot
)
{
IDebugApplicationNode *pDocNode;
HRESULT hr = S_OK;
if (pfilemapRoot == NULL || ppDocRoot == NULL)
return E_POINTER;
// Create the root node
if (FAILED(hr = g_pDebugApp->CreateApplicationNode(ppDocRoot)))
return hr;
// From the filemap information, match it up with the correct provider
// "This" is the provider for the root document, others come from Inc file cache
if (pfilemapRoot == m_rgpFilemaps[0])
{
if (FAILED(hr = (*ppDocRoot)->SetDocumentProvider(this)))
return hr;
}
else
{
CIncFile *pIncFile;
if (FAILED(hr = g_IncFileMap.GetIncFile(pfilemapRoot->m_szPathTranslated, &pIncFile)))
return hr;
if (FAILED(hr = (*ppDocRoot)->SetDocumentProvider(pIncFile)))
return hr;
// SetDocumentProvider AddRef'ed
pIncFile->Release();
}
// Create a node from all of the children and attach it to this node
CFileMap *pfilemapChild = pfilemapRoot->m_pfilemapChild;
while (pfilemapChild != NULL)
{
IDebugApplicationNode *pDocChild;
if (FAILED(hr = CreateDocumentTree(pfilemapChild, &pDocChild)))
return hr;
if (FAILED(hr = pDocChild->Attach(*ppDocRoot)))
return hr;
pfilemapChild = pfilemapChild->m_fHasSibling? pfilemapChild->m_pfilemapSibling : NULL;
}
return S_OK;
}
/* ============================================================================
CTemplate::End
Place template in non-usable state (after this is called, last ref. should
be the any currently executing scripts. The count will naturally vanish
as the scripts finish. The template should never be recycled in cache after
this call.)
REF COUNTING NOTE:
Since debugging client has a reference to the template, the template needs
to dis-associate with the debugger at a point in time before destruction.
Otherwise, the reference will never go to zero.
*/
ULONG
CTemplate::End
(
)
{
// Flag template as non-usable (for debugging)
m_fIsValid = FALSE;
Detach();
if (!m_CPTextEvents.FIsEmpty() && g_pDebugApp != NULL)
{
IEnumConnections *pConnIterator;
if (SUCCEEDED(m_CPTextEvents.EnumConnections(&pConnIterator)))
{
CONNECTDATA ConnectData;
while (pConnIterator->Next(1, &ConnectData, NULL) == S_OK)
{
IDebugDocumentTextEvents *pTextEventSink;
if (SUCCEEDED(ConnectData.pUnk->QueryInterface(IID_IDebugDocumentTextEvents, reinterpret_cast<void **>(&pTextEventSink))))
{
InvokeDebuggerWithThreadSwitch(g_pDebugApp, DEBUGGER_ON_DESTROY, pTextEventSink);
pTextEventSink->Release();
}
ConnectData.pUnk->Release();
}
pConnIterator->Release();
}
}
return Release();
}
/* ============================================================================
CTemplate::NotifyDebuggerOnPageEvent
Let debugger know about page start/end
*/
HRESULT
CTemplate::NotifyDebuggerOnPageEvent
(
BOOL fStart // TRUE = StartPage, FALSE = EndPage
)
{
CTemplateDocumentContext *pDebugContext = new CTemplateDocumentContext(this, 0, 0);
if (pDebugContext == NULL)
return E_OUTOFMEMORY;
HRESULT hr = S_OK;
if (g_pDebugApp)
hr = InvokeDebuggerWithThreadSwitch
(
g_pDebugApp,
fStart ? DEBUGGER_EVENT_ON_PAGEBEGIN : DEBUGGER_EVENT_ON_PAGEEND,
static_cast<IUnknown *>(pDebugContext)
);
pDebugContext->Release();
return hr;
}
/* ============================================================================
CTemplate::ReleaseTypeLibs
Release all typelibs collected from metadata
*/
void
CTemplate::ReleaseTypeLibs()
{
if (m_rgpTypeLibs.length() > 0)
{
for (UINT i = 0; i < m_rgpTypeLibs.length(); i++)
{
m_rgpTypeLibs[i]->Release();
}
m_rgpTypeLibs.reshape(0);
}
}
/* ============================================================================
CTemplate::WrapTypeLibs
Wrap all typelibs collected from metadata into single IDispatch *
*/
void
CTemplate::WrapTypeLibs(CHitObj *pHitObj)
{
HRESULT hr = S_OK;
Assert(m_pdispTypeLibWrapper == NULL);
if (m_rgpTypeLibs.length() > 0)
{
hr = ::WrapTypeLibs
(
m_rgpTypeLibs.begin(),
m_rgpTypeLibs.length(),
&m_pdispTypeLibWrapper
);
ReleaseTypeLibs();
}
if (FAILED(hr))
{
m_pbErrorLocation = NULL;
m_idErrMsg = IDE_TEMPLATE_WRAP_TYPELIB_FAILED;
ProcessSpecificError(*(m_rgpFilemaps[0]), pHitObj);
THROW(E_TEMPLATE_COMPILE_FAILED_DONT_CACHE);
}
}
/* ============================================================================
CTemplate::Release449
Release all 449-echo-cookie objects collected from metadata
*/
void
CTemplate::Release449()
{
if (m_rgp449.length() > 0)
{
for (UINT i = 0; i < m_rgp449.length(); i++)
{
m_rgp449[i]->Release();
}
m_rgp449.reshape(0);
}
}
/* ============================================================================
CTemplate::Do449Processing
Generate 449 response in cookie negotiations with IE when needed
*/
HRESULT
CTemplate::Do449Processing
(
CHitObj *pHitObj
)
{
if (m_rgp449.length() == 0 || pHitObj->F449Done())
return S_OK;
HRESULT hr = ::Do449Processing
(
pHitObj,
m_rgp449.begin(),
m_rgp449.length()
);
pHitObj->Set449Done();
return hr;
}
#if 0
/* ============================================================================
CTemplate::OutputDebugTables
print the debugging data structures to the debug window
*/
void
CTemplate::OutputDebugTables()
{
unsigned i, j;
wchar_t wszDebugLine[256];
CWCharToMBCS convTarget;
CWCharToMBCS convSource;
// print line mapping table
DBGPRINTF((DBG_CONTEXT, "\nEngine HTML? Line# SourceOffset Length TargetOffset TargetText__________ SourceText__________ File\n"));
for (i = 0; i < m_cScriptEngines; ++i)
for (j = 0; j < m_rgrgSourceInfos[i].length(); ++j)
{
wchar_t wszSourceText[SNIPPET_SIZE + 1], wszTargetText[SNIPPET_SIZE + 1];
CSourceInfo *pSourceInfo = &m_rgrgSourceInfos[i][j];
// DON'T display sample script text on last line of each engine
if (j == m_rgrgSourceInfos[i].length() - 1)
{
wszTargetText[0] = 0;
wszSourceText[0] = 0;
}
else
{
// Get source & target text sample
GetScriptSnippets(
pSourceInfo->m_cchSourceOffset, pSourceInfo->m_pfilemap,
pSourceInfo->m_cchTargetOffset, i,
wszSourceText, wszTargetText
);
// Actually display each line
#if 0
#ifndef _NO_TRACING_
convTarget.Init(wszTargetText);
convSource.Init(wszSourceText);
DBGINFO((DBG_CONTEXT,
"%-6d %-5s %-5d %-12d %-6d %-12d %-20s %-20s %s\n",
i,
pSourceInfo->m_fIsHTML? "Yes" : "No",
pSourceInfo->m_idLine,
pSourceInfo->m_cchSourceOffset,
pSourceInfo->m_cchSourceText,
pSourceInfo->m_cchTargetOffset,
convTarget.GetString(),
convSource.GetString(),
pSourceInfo->m_pfilemap->m_szPathTranslated));
#else
CMBCSToWChar convPath;
convPath.Init(pSourceInfo->m_pfilemap->m_szPathTranslated);
wsprintfW(
wszDebugLine,
L"%-6d %-5s %-5d %-12d %-6d %-12d %-20s %-20s %s\n",
i,
pSourceInfo->m_fIsHTML? L"Yes" : L"No",
pSourceInfo->m_idLine,
pSourceInfo->m_cchSourceOffset,
pSourceInfo->m_cchSourceText,
pSourceInfo->m_cchTargetOffset,
wszTargetText,
wszSourceText,
convPath.GetString());
OutputDebugStringW(wszDebugLine);
#endif
#endif
}
}
OutputDebugStringA("\n\n");
for (i = 0; i < m_cFilemaps; ++i)
{
CFileMap *pFilemap = m_rgpFilemaps[i];
#if UNICODE
DBGPRINTF((DBG_CONTEXT, "DBCS mapping table for File %S:\n", pFilemap->m_szPathTranslated));
#else
DBGPRINTF((DBG_CONTEXT, "DBCS mapping table for File %s:\n", pFilemap->m_szPathTranslated));
#endif
DBGPRINTF((DBG_CONTEXT, "ByteOffset CharOffset\n"));
for (COffsetInfo *pOffsetInfo = pFilemap->m_rgByte2DBCS.begin();
pOffsetInfo < pFilemap->m_rgByte2DBCS.end();
++pOffsetInfo)
DebugPrintf("%-10d %-10d\n", pOffsetInfo->m_cbOffset, pOffsetInfo->m_cchOffset);
DBGPRINTF((DBG_CONTEXT, "\n\n"));
}
DBGPRINTF((DBG_CONTEXT, "Include File Hierarchy\n"));
OutputIncludeHierarchy(m_rgpFilemaps[0], 0);
DBGPRINTF((DBG_CONTEXT, "\n"));
}
/* ============================================================================
CTemplate::OutputIncludeHierarchy
print the lineage information that we keep around for include files.
Print all nodes on one level at the current indentation, then descend for
nested includes.
*/
void
CTemplate::OutputIncludeHierarchy
(
CFileMap* pfilemap,
int cchIndent
)
{
TCHAR szDebugString[256], *pchEnd;
for (;;)
{
pchEnd = szDebugString;
for (int i = 0; i < cchIndent; ++i)
*pchEnd++ = _T(' ');
pchEnd = strcpyEx(pchEnd, pfilemap->m_szPathTranslated);
*pchEnd++ = _T('\n');
*pchEnd = _T('\0');
DBGPRINTF((DBG_CONTEXT, szDebugString));
// Print anything that this file includes
if (pfilemap->m_pfilemapChild)
OutputIncludeHierarchy(pfilemap->m_pfilemapChild, cchIndent + 3);
// Stop when there are no more siblings on this level
if (! pfilemap->m_fHasSibling)
break;
// Advance to next sibling
pfilemap = pfilemap->m_pfilemapSibling;
}
}
/* ============================================================================
CTemplate::OutputScriptSnippets
print some script from both the source offset & its corresponding target.
Good way to visually see if the offset conversions are working.
*/
void
CTemplate::GetScriptSnippets
(
ULONG cchSourceOffset,
CFileMap *pFilemapSource,
ULONG cchTargetOffset,
ULONG idTargetEngine,
wchar_t *wszSourceText,
wchar_t *wszTargetText
)
{
// Get target text sample
if (wszTargetText)
{
char *szEngineName;
PROGLANG_ID *pProgLangID;
const wchar_t *wszScriptText;
GetScriptBlock(idTargetEngine, &szEngineName, &pProgLangID, &wszScriptText);
wszScriptText += cchTargetOffset;
int cch = wcslen(wszScriptText);
wcsncpy(wszTargetText, wszScriptText, min(cch, SNIPPET_SIZE) + 1);
wszTargetText[min(cch, SNIPPET_SIZE)] = 0;
// Convert newlines to space
wchar_t *pwch = wszTargetText;
while (*pwch != 0)
if (iswspace(*pwch++))
pwch[-1] = ' ';
}
// Get source text sample
if (wszSourceText)
{
ULONG cchMax = 0;
pFilemapSource->GetText((WORD)m_wCodePage, cchSourceOffset, wszSourceText, NULL, &cchMax, SNIPPET_SIZE);
wszSourceText[cchMax] = 0;
// Convert newlines to space
wchar_t *pwch = wszSourceText;
while (*pwch != 0)
if (iswspace(*pwch++))
pwch[-1] = ' ';
}
}
#endif
/* ============================================================================
CTemplate::BuildPersistedDACL
Builds a DACL based on the SECURITY_DESCRIPTOR already
associated with the template. The PersistedDACL is modified to include
full access for administrators and delete access for everyone.
*/
HRESULT CTemplate::BuildPersistedDACL(PACL *ppRetDACL)
{
HRESULT hr = S_OK;
BOOL bDaclPresent;
BOOL bDaclDefaulted;
PACL pSrcDACL = NULL;
EXPLICIT_ACCESS ea;
SID_IDENTIFIER_AUTHORITY WorldAuthority = SECURITY_WORLD_SID_AUTHORITY;
*ppRetDACL = NULL;
ZeroMemory(&ea, sizeof(EXPLICIT_ACCESS));
ea.grfAccessPermissions = SYNCHRONIZE | DELETE;
ea.grfAccessMode = GRANT_ACCESS;
ea.grfInheritance= SUB_CONTAINERS_AND_OBJECTS_INHERIT;
ea.Trustee.TrusteeForm = TRUSTEE_IS_SID;
if (m_rgpFilemaps[0]->m_pSecurityDescriptor == NULL) {
return S_OK;
}
if (!AllocateAndInitializeSid(&WorldAuthority,
1,
SECURITY_WORLD_RID,
0,0,0,0,0,0,0,
(PSID *)(&ea.Trustee.ptstrName)))
hr = HRESULT_FROM_WIN32(GetLastError());
else if (!GetSecurityDescriptorDacl(m_rgpFilemaps[0]->m_pSecurityDescriptor,
&bDaclPresent,
&pSrcDACL,
&bDaclDefaulted))
hr = HRESULT_FROM_WIN32(GetLastError());
else if ((hr = SetEntriesInAcl(1,
&ea,
bDaclPresent ? pSrcDACL : NULL,
ppRetDACL)) != ERROR_SUCCESS)
hr = HRESULT_FROM_WIN32(hr);
if (ea.Trustee.ptstrName)
FreeSid(ea.Trustee.ptstrName);
return hr;
}
/* ============================================================================
CTemplate::PersistData
Attempts to write the contents of the template memory to disk. Note that
the memory isn't freed here but later when the template ref count falls to
1 (indicating that the only reference to the template is the one that the
cache has on it).
*/
HRESULT CTemplate::PersistData(char *pszTempFilePath)
{
HRESULT hr = S_OK;
DWORD winErr = 0;
HANDLE hFile = NULL;
DWORD dwWritten;
HANDLE hImpersonationToken = NULL;
HANDLE hThread;
PACL pPersistDACL = NULL;
#if DBG_PERSTEMPL
DBGPRINTF((DBG_CONTEXT,
"CTemplate::PersistData() enterred.\n\tTemplate is %s\n\tPersistTempName is %s\n",
GetSourceFileName(),
m_szPersistTempName ? m_szPersistTempName : "<none>"));
#endif
//
// if for some reason this template has been marked as invalid, then it is not persistable
//
if (m_fIsValid == FALSE)
{
hr = E_FAIL;
goto end;
}
// check to see if we already have a persist temp name. If a template moves
// from the persisted cache back to the memory cache, then the persisted flag
// will have been lifted but the cache name will remain as an optimization for
// future persisting.
if (m_szPersistTempName == NULL) {
hThread = GetCurrentThread();
if (OpenThreadToken( hThread,
TOKEN_READ | TOKEN_IMPERSONATE,
TRUE,
&hImpersonationToken )) {
RevertToSelf();
}
// allocate memory for this temp path
if (!(m_szPersistTempName = (LPSTR)CTemplate::LargeMalloc(MAX_PATH))) {
hr = E_OUTOFMEMORY;
}
// create the temp file. The location of the temp directory was passed
// in as an argument. The resulting tempfile name in m_szPersistTempName
// will include this path.
else if (GetTempFileNameA(pszTempFilePath,
"ASPTemplate",
0,
m_szPersistTempName) == 0) {
hr = HRESULT_FROM_WIN32(GetLastError());
}
// build a security descriptor to use with this persisted file. It is
// comprised of the .asp's security descriptor plus a couple of DACLs
// to allow administrators full access and everyone delete access.
else if (FAILED(hr = BuildPersistedDACL(&pPersistDACL)));
else if (pPersistDACL
&& (winErr = SetNamedSecurityInfoA((LPSTR)m_szPersistTempName,
SE_FILE_OBJECT,
DACL_SECURITY_INFORMATION,
NULL,
NULL,
pPersistDACL,
NULL)))
hr = HRESULT_FROM_WIN32(winErr);
// create the file
else if ((hFile = CreateFileA(m_szPersistTempName,
GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL)) == INVALID_HANDLE_VALUE) {
hr = HRESULT_FROM_WIN32(GetLastError());
}
// slam out the entire contents of the template memory to the file
else if (WriteFile(hFile,
m_pbStart,
m_cbTemplate,
&dwWritten,
NULL) == 0) {
hr = HRESULT_FROM_WIN32(GetLastError());
}
// close
else if (CloseHandle(hFile) == 0) {
hr = HRESULT_FROM_WIN32(GetLastError());
}
else {
hFile = NULL;
}
if (FAILED(hr));
// make sure that the entire amount was written out
else if (dwWritten != m_cbTemplate) {
hr = E_FAIL;
}
if (hImpersonationToken) {
SetThreadToken(&hThread, hImpersonationToken);
CloseHandle(hImpersonationToken);
}
}
if (FAILED(hr));
else {
// if successfull, then note that the template is now persisted.
// Do an AddRef and Release as a safe way to check to see if the
// template memory can be freed.
m_fIsPersisted = TRUE;
AddRef();
Release();
}
// if errors occurred, clean up any resources.
if (hr != S_OK) {
if (hFile)
CloseHandle(hFile);
if (m_szPersistTempName)
CTemplate::LargeFree(m_szPersistTempName);
m_szPersistTempName = NULL;
}
// free the persisted SECURITY_DESCRIPTOR if allocated
if (pPersistDACL) {
LocalFree(pPersistDACL);
}
end:
#if DBG_PERSTEMPL
if (hr == S_OK) {
DBGPRINTF((DBG_CONTEXT,
"Persist Successful. TempName is %s\n",
m_szPersistTempName));
}
else {
DBGPRINTF((DBG_CONTEXT,
"Persist failed. hr = %x",
hr));
}
#endif
return hr;
}
/* ============================================================================
CTemplate::UnPersistData
Restores the template memory from disk.
*/
HRESULT CTemplate::UnPersistData()
{
HRESULT hr = S_OK;
HANDLE hFile = NULL;
DWORD dwRead;
HANDLE hImpersonationToken = NULL;
HANDLE hThread;
#if DEB_PERSTEMPL
DBGPRINTF((DBG_CONTEXT,
"CTemplate::UnPersistData() enterred.\n\tTemplate is %s\n\tTempName is %s\n",
m_rgpFilemaps[0]->m_szPathTranslated,
m_szPersistTempName));
#endif
// check to see if the template is already loaded into memory. If so, then
// all this routine needs to do is lift the IsPersisted flag.
if (m_pbStart != NULL) {
m_fIsPersisted = FALSE;
goto end;
}
hThread = GetCurrentThread();
if (OpenThreadToken( hThread,
TOKEN_READ | TOKEN_IMPERSONATE,
TRUE,
&hImpersonationToken )) {
RevertToSelf();
}
// open the temp file for read
if ((hFile = CreateFileA(m_szPersistTempName,
GENERIC_READ,
0,
NULL,
OPEN_EXISTING,
0,
NULL)) == INVALID_HANDLE_VALUE) {
hr = HRESULT_FROM_WIN32(GetLastError());
}
// allocate the template memory
else if (!(m_pbStart = (BYTE *)CTemplate::LargeMalloc(m_cbTemplate))) {
hr = E_OUTOFMEMORY;
}
// read in the entire file
else if (ReadFile(hFile,
m_pbStart,
m_cbTemplate,
&dwRead,
NULL) == 0) {
hr = HRESULT_FROM_WIN32(GetLastError());
}
// we're done with the file
else if (CloseHandle(hFile) == 0) {
hr = HRESULT_FROM_WIN32(GetLastError());
}
else {
hFile = NULL;
}
if (FAILED(hr));
// check to make sure we got everything
else if (m_cbTemplate != dwRead) {
hr = E_FAIL;
}
else {
// if not, pretend like this is no longer persisted. Prevents errors
// in the future.
m_fIsPersisted = FALSE;
}
if (hr != S_OK) {
// make sure that the file handle was cleaned up
if (hFile)
CloseHandle(hFile);
}
end:
if (hImpersonationToken) {
SetThreadToken(&hThread, hImpersonationToken);
CloseHandle(hImpersonationToken);
}
#if DBG_PERSTEMPL
if (hr == S_OK) {
DBGPRINTF((DBG_CONTEXT,
"UnPersist Successful\n"));
}
else {
DBGPRINTF((DBG_CONTEXT,
"UnPersist failed. hr = %x",
hr));
}
#endif
return hr;
}
/* ============================================================================
CTemplate::PersistCleanup
Cleans up the temp file and the memory holding the temp file name.
*/
HRESULT CTemplate::PersistCleanup()
{
HRESULT hr = S_OK;
HANDLE hImpersonationToken = NULL;
HANDLE hThread;
if (m_szPersistTempName == NULL) {
return (S_OK);
}
hThread = GetCurrentThread();
if (OpenThreadToken( hThread,
TOKEN_READ | TOKEN_IMPERSONATE,
TRUE,
&hImpersonationToken )) {
RevertToSelf();
}
if (DeleteFileA(m_szPersistTempName) == 0) {
hr = GetLastError();
}
else {
m_fIsPersisted = FALSE;
CTemplate::LargeFree(m_szPersistTempName);
m_szPersistTempName = NULL;
}
if (hImpersonationToken) {
SetThreadToken(&hThread, hImpersonationToken);
CloseHandle(hImpersonationToken);
}
return hr;
}
/* ============================================================================
CTemplate::CreateTransServiceConfig
Creates the ServicesConfig object for a transacted page
*/
HRESULT CTemplate::CreateTransServiceConfig(BOOL fEnableTracker)
{
HRESULT hr;
IServiceInheritanceConfig *pIInheritConfig = NULL;
IServiceTransactionConfig *pITransConfig = NULL;
IServiceTrackerConfig *pITracker = NULL;
// see if there is any reason to create the object...
if ((fEnableTracker == FALSE) && (m_ttTransacted == ttUndefined)) {
return S_OK;
}
hr = CoCreateInstance(CLSID_CServiceConfig,
NULL,
CLSCTX_INPROC_SERVER,
IID_IUnknown,
(void **)&m_pServicesConfig);
if (FAILED(hr)) {
DBGWARN((DBG_CONTEXT, "CTemplate::CreateTransServiceConfig() - Could not CCI ServicesConfig, hr = %#08x\n", hr));
goto LCleanup;
}
hr = m_pServicesConfig->QueryInterface(IID_IServiceInheritanceConfig, (void **)&pIInheritConfig);
if (FAILED(hr)) {
DBGWARN((DBG_CONTEXT, "CTemplate::CreateTransServiceConfig() - Could not QI for IServiceInheritanceConfig, hr = %#08x\n", hr));
goto LCleanup;
}
hr = pIInheritConfig->ContainingContextTreatment(CSC_Inherit);
if (FAILED(hr)) {
DBGWARN((DBG_CONTEXT, "CTemplate::CreateTransServiceConfig() - Could not set Inherit mode, hr = %#08x\n", hr));
goto LCleanup;
}
if (m_ttTransacted != ttUndefined) {
CSC_TransactionConfig transConfig;
switch (m_ttTransacted) {
case ttNotSupported:
transConfig = CSC_NoTransaction;
break;
case ttSupported:
transConfig = CSC_IfContainerIsTransactional;
break;
case ttRequired:
transConfig = CSC_CreateTransactionIfNecessary;
break;
case ttRequiresNew:
transConfig = CSC_NewTransaction;
break;
}
hr = m_pServicesConfig->QueryInterface(IID_IServiceTransactionConfig, (void **)&pITransConfig);
if (FAILED(hr)) {
DBGWARN((DBG_CONTEXT, "CTemplate::CreateTransServiceConfig() - Could not QI for IID_IServiceTransactionConfig, hr = %#08x\n", hr));
goto LCleanup;
}
hr = pITransConfig->ConfigureTransaction(transConfig);
if (FAILED(hr)) {
DBGWARN((DBG_CONTEXT, "CTemplate::CreateTransServiceConfig() - Could not set transaction type, hr = %#08x\n", hr));
goto LCleanup;
}
}
if (fEnableTracker) {
hr = m_pServicesConfig->QueryInterface(IID_IServiceTrackerConfig, (void **)&pITracker);
if (FAILED(hr)) {
DBGWARN((DBG_CONTEXT, "CTemplate::CreateTransServiceConfig() - Could not QI for IID_IServiceTrackerConfig, hr = %#08x\n", hr));
goto LCleanup;
}
LPWSTR pwszAppURL;
LPWSTR pwszASPName;
#if UNICODE
pwszAppURL = m_szApplnVirtPath;
pwszASPName = GetSourceFileName(SOURCEPATHTYPE_VIRTUAL);
#else
CMBCSToWChar convAppln;
CMBCSToWChar convASPName;
hr = convAppln.Init(m_szApplnVirtPath);
if (FAILED(hr)) {
goto LCleanup;
}
hr = convASPName.Init(GetSourceFileName(SOURCEPATHTYPE_VIRTUAL));
if (FAILED(hr)) {
goto LCleanup;
}
pwszAppURL = convAppln.GetString();
pwszASPName = convASPName.GetString();
#endif
pwszASPName += wcslen(pwszAppURL) + 1;
hr = pITracker->TrackerConfig(CSC_UseTracker, pwszAppURL, pwszASPName);
if (FAILED(hr)) {
DBGWARN((DBG_CONTEXT, "CTemplate::CreateTransServiceConfig() - Could not set Inherit mode, hr = %#08x\n", hr));
goto LCleanup;
}
}
LCleanup:
if (pIInheritConfig)
pIInheritConfig->Release();
if (pITransConfig)
pITransConfig->Release();
return hr;
}
/* ****************************************************************************
CIncFile member functions
*/
/* ============================================================================
CIncFile::CIncFile
Constructor
Returns:
Nothing
Side effects:
None
*/
CIncFile::CIncFile
(
)
: m_szIncFile(NULL),
m_fCsInited(FALSE),
m_CPTextEvents(this, IID_IDebugDocumentTextEvents),
m_cRefs(0)
{ }
/* ============================================================================
CIncFile::Init
Inits the CIncFile object
Returns:
HRESULT
Side effects:
None
*/
HRESULT
CIncFile::Init
(
const TCHAR* szIncFile // file name
)
{
HRESULT hr = S_OK;
WIN32_FILE_ATTRIBUTE_DATA fad; // win32 file attributes data structure
ErrInitCriticalSection(&m_csUpdate, hr);
m_fCsInited = TRUE;
if(NULL == (m_szIncFile = (LPTSTR) CTemplate::SmallMalloc((_tcslen(szIncFile) + 1)*sizeof(TCHAR)))) {
hr = E_OUTOFMEMORY;
goto LExit;
}
_tcscpy(m_szIncFile, szIncFile);
// init hash table element base class
if(FAILED(hr = CLinkElem::Init(m_szIncFile, _tcslen(m_szIncFile)*sizeof(TCHAR))))
goto LExit;
LExit:
return hr;
}
/* ============================================================================
CIncFile::~CIncFile
Destructor
Returns:
Nothing
Side effects:
None
*/
CIncFile::~CIncFile
(
)
{
#if UNICODE
DBGPRINTF((DBG_CONTEXT, "Include file deleted: %S\n", m_szIncFile));
#else
DBGPRINTF((DBG_CONTEXT, "Include file deleted: %s\n", m_szIncFile));
#endif
Assert(m_cRefs == 0);
SmallTemplateFreeNullify((void**) &m_szIncFile);
if(m_fCsInited)
DeleteCriticalSection(&m_csUpdate);
}
/* ============================================================================
CIncFile::GetTemplate
Get i'th template user from CIncFile
Returns:
NULL if "iTemplate" is out of range, m_rgpTemplates[iTemplate] otherwise
Side effects:
None
*/
CTemplate*
CIncFile::GetTemplate
(
int iTemplate
)
{
if (iTemplate < 0 || iTemplate >= (signed int) m_rgpTemplates.length())
return NULL;
else
return m_rgpTemplates[iTemplate];
}
/* ============================================================================
CIncFile::QueryInterface
Provides QueryInterface implementation for CIncFile
NOTE: It is arbitrary which vtable we return for IDebugDocument & IDebugDocumentInfo.
*/
HRESULT
CIncFile::QueryInterface(const GUID &uidInterface, void **ppvObj)
{
if (uidInterface == IID_IUnknown || uidInterface == IID_IDebugDocumentProvider)
*ppvObj = static_cast<IDebugDocumentProvider *>(this);
else if (uidInterface == IID_IDebugDocument || uidInterface == IID_IDebugDocumentInfo || uidInterface == IID_IDebugDocumentText)
*ppvObj = static_cast<IDebugDocumentText *>(this);
else if (uidInterface == IID_IConnectionPointContainer)
*ppvObj = static_cast<IConnectionPointContainer *>(this);
else
*ppvObj = NULL;
if (*ppvObj)
{
AddRef();
return S_OK;
}
else
return E_NOINTERFACE;
}
/* ============================================================================
CIncFile::AddRef
Adds a ref to this IncFile, thread-safely
*/
ULONG
CIncFile::AddRef()
{
InterlockedIncrement(&m_cRefs);
return m_cRefs;
}
/* ============================================================================
CIncFile::Release
Releases a ref to this IncFile, thread-safely
*/
ULONG
CIncFile::Release()
{
LONG cRef = InterlockedDecrement(&m_cRefs);
if (cRef == 0)
{
delete this;
}
return cRef;
}
/* ****************************************************************************
IDebugDocumentProvider implementation for includes
*/
/* ============================================================================
CIncFile::GetDocument
Return a pointer to the IDebugDocument implementation. (same object in this case)
Returns:
*ppDebugDoc is set to "this".
Notes:
always succeeds
*/
HRESULT CIncFile::GetDocument
(
IDebugDocument **ppDebugDoc
)
{
return QueryInterface(IID_IDebugDocument, reinterpret_cast<void **>(ppDebugDoc));
}
/* ============================================================================
CIncFile::GetName
Return the various names of a document.
*/
HRESULT CIncFile::GetName
(
/* [in] */ DOCUMENTNAMETYPE doctype,
/* [out] */ BSTR *pbstrName
)
{
switch (doctype) {
case DOCUMENTNAMETYPE_APPNODE:
case DOCUMENTNAMETYPE_FILE_TAIL:
case DOCUMENTNAMETYPE_TITLE:
// Use the name of the include file (char after last back-slash) converted to lower case.
{
TCHAR *szFilePart = _tcsrchr(m_szIncFile, _T('\\'));
Assert (szFilePart != NULL);
#if UNICODE
*pbstrName = SysAllocString(szFilePart + 1);
if (*pbstrName == NULL) {
return E_OUTOFMEMORY;
}
#else
if (FAILED(SysAllocStringFromSz(szFilePart + 1, 0, pbstrName, CP_ACP)))
return E_FAIL;
#endif
if (*pbstrName != NULL)
_wcslwr(*pbstrName);
return S_OK;
}
case DOCUMENTNAMETYPE_URL:
// prefix with the URL, use szPathInfo for the rest of the path
{
CTemplate::CFileMap *pFilemap = GetFilemap();
if (pFilemap->FHasVirtPath()) {
STACK_BUFFER( tempName, MAX_PATH );
CTemplate *pTemplate = m_rgpTemplates[0];
int cbURLPrefix = DIFF(pTemplate->m_szApplnVirtPath - pTemplate->m_szApplnURL)*sizeof(TCHAR);
if (!tempName.Resize(cbURLPrefix + ((_tcslen(pFilemap->m_szPathInfo) + 1)*sizeof(TCHAR)))) {
return E_OUTOFMEMORY;
}
TCHAR *szURL = (TCHAR *)tempName.QueryPtr();
memcpy(szURL, pTemplate->m_szApplnURL, cbURLPrefix);
_tcscpy(&szURL[cbURLPrefix/sizeof(TCHAR)], pFilemap->m_szPathInfo);
#if UNICODE
*pbstrName = SysAllocString(szURL);
if (*pbstrName == NULL) {
return (E_OUTOFMEMORY);
}
return S_OK;
#else
return SysAllocStringFromSz(szURL, 0, pbstrName, pTemplate->m_wCodePage);
#endif
}
else {
*pbstrName = NULL;
return E_FAIL;
}
}
default:
return E_FAIL;
}
}
/* ****************************************************************************
IDebugDocumentText implementation
*/
/* ============================================================================
CIncFile::GetSize
Return the number of lines & characters in the document
*/
HRESULT CIncFile::GetSize
(
/* [out] */ ULONG *pcLines,
/* [out] */ ULONG *pcChars
)
{
CTemplate::CFileMap *pfilemap = GetFilemap();
*pcLines = ULONG_MAX;
*pcChars = pfilemap->m_cChars;
#if UNICODE
DBGPRINTF((DBG_CONTEXT, "GetSize(\"%S\") returns %lu characters (%lu lines)\n", pfilemap->m_szPathTranslated, *pcChars, *pcLines));
#else
DBGPRINTF((DBG_CONTEXT, "GetSize(\"%s\") returns %lu characters (%lu lines)\n", pfilemap->m_szPathTranslated, *pcChars, *pcLines));
#endif
return S_OK;
}
/* ============================================================================
CTemplate::GetDocumentAttributes
Return doc attributes
*/
HRESULT CIncFile::GetDocumentAttributes
(
/* [out] */ TEXT_DOC_ATTR *ptextdocattr
)
{
// Easy way to tell debugger that we don't support editing.
*ptextdocattr = TEXT_DOC_ATTR_READONLY;
return S_OK;
}
/* ============================================================================
CIncFile::GetPositionOfLine
From a line number, return the character offset of the beginning
I don't think we need this function. It is meant to support line oriented
debuggers, of which Caesar is not one.
*/
HRESULT CIncFile::GetPositionOfLine
(
/* [in] */ ULONG cLineNumber,
/* [out] */ ULONG *pcCharacterPosition
)
{
return m_rgpTemplates[0]->GetPositionOfLine(GetFilemap(), cLineNumber, pcCharacterPosition);
}
/* ============================================================================
CIncFile::GetLineOfPosition
From a character offset, return the line number and offset within the line
I don't think we need this function. It is meant to support line oriented
debuggers, of which Caesar is not one.
*/
HRESULT CIncFile::GetLineOfPosition
(
/* [in] */ ULONG cCharacterPosition,
/* [out] */ ULONG *pcLineNumber,
/* [out] */ ULONG *pcCharacterOffsetInLine
)
{
return m_rgpTemplates[0]->GetLineOfPosition(GetFilemap(), cCharacterPosition, pcLineNumber, pcCharacterOffsetInLine);
}
/* ============================================================================
CIncFile::GetText
From a character offset and length, return the document text
*/
HRESULT CIncFile::GetText
(
ULONG cchSourceOffset,
WCHAR *pwchText,
SOURCE_TEXT_ATTR *pTextAttr,
ULONG *pcChars,
ULONG cMaxChars
)
{
return GetFilemap()->GetText((WORD)m_rgpTemplates[0]->m_wCodePage, cchSourceOffset, pwchText, pTextAttr, pcChars, cMaxChars);
}
/* ============================================================================
CIncFile::GetPositionOfContext
Decompose a document context into the document offset & length
*/
HRESULT CIncFile::GetPositionOfContext
(
/* [in] */ IDebugDocumentContext *pUnknownDocumentContext,
/* [out] */ ULONG *pcchSourceOffset,
/* [out] */ ULONG *pcchText
)
{
// Make sure that the context is one of ours
CIncFileDocumentContext *pDocumentContext;
if (FAILED(pUnknownDocumentContext->QueryInterface(IID_IDenaliIncFileDocumentContext, reinterpret_cast<void **>(&pDocumentContext))))
return E_FAIL;
if (pcchSourceOffset)
*pcchSourceOffset = pDocumentContext->m_cchSourceOffset;
if (pcchText)
*pcchText = pDocumentContext->m_cchText;
pDocumentContext->Release();
return S_OK;
}
/* ============================================================================
CIncFile::GetContextOfPosition
Given the character position & number of characters in the document,
encapsulate this into a document context object.
*/
HRESULT CIncFile::GetContextOfPosition
(
/* [in] */ ULONG cchSourceOffset,
/* [in] */ ULONG cchText,
/* [out] */ IDebugDocumentContext **ppDocumentContext
)
{
if (
(*ppDocumentContext = new CIncFileDocumentContext(this, cchSourceOffset, cchText))
== NULL
)
return E_OUTOFMEMORY;
return S_OK;
}
/* ****************************************************************************
IConnectionPointContainer implementation
*/
/* ============================================================================
CIncFile::FindConnectionPoint
From a character offset and length, return the document text
*/
HRESULT CIncFile::FindConnectionPoint
(
const GUID &uidConnection,
IConnectionPoint **ppCP
)
{
if (uidConnection == IID_IDebugDocumentTextEvents)
return m_CPTextEvents.QueryInterface(IID_IConnectionPoint, reinterpret_cast<void **>(ppCP));
else
{
*ppCP = NULL;
return E_NOINTERFACE;
}
}
/* ============================================================================
CIncFile::GetFilemap
Returns a CFileMap pointer for this include file. (Note: There are several
CFileMaps that may be used, corresponding to each template. This function
selects one of them.)
Returns:
Corresponding CFileMap
Side effects:
None
*/
CTemplate::CFileMap *
CIncFile::GetFilemap
(
)
{
// Get pointer to first template's filemaps
CTemplate::CFileMap **ppFilemapInc = &m_rgpTemplates[0]->m_rgpFilemaps[1];
BOOL fFoundInc = FALSE;
// Look for the filemap whose name corresponds to this IncFile. It had better exist
// in all template filemaps.
// NOTE: Start searching at position 1, because position 0 is the template itself.
//
for (unsigned i = 1; i < m_rgpTemplates[0]->m_cFilemaps && !fFoundInc; ++i)
if (_tcscmp(m_szIncFile, (*ppFilemapInc++)->m_szPathTranslated) == 0)
fFoundInc = TRUE;
Assert (fFoundInc);
return ppFilemapInc[-1];
}
/* ============================================================================
CIncFile::AddTemplate
Adds a template to the list of templates that include this inc-file
Returns:
HRESULT
Side effects:
None
*/
HRESULT
CIncFile::AddTemplate
(
CTemplate* pTemplate
)
{
EnterCriticalSection(&m_csUpdate);
// Add the template to the list only if it does not exist
if (m_rgpTemplates.find(pTemplate) == -1)
{
if (FAILED(m_rgpTemplates.append(pTemplate)))
{
LeaveCriticalSection(&m_csUpdate);
return E_OUTOFMEMORY;
}
// Notify the debugger that template dependency has changed
// (Ignore failure)
//
if (g_pDebugApp)
{
IF_DEBUG(SCRIPT_DEBUGGER)
DBGPRINTF((DBG_CONTEXT, "AddTemplate: Notifying debugger to refresh breakpoints\n"));
InvokeDebuggerWithThreadSwitch
(
g_pDebugApp,
DEBUGGER_EVENT_ON_REFRESH_BREAKPOINT,
static_cast<IDebugDocument *>(this)
);
}
}
LeaveCriticalSection(&m_csUpdate);
return S_OK;
}
/* ============================================================================
CIncFile::RemoveTemplate
Removes a template from the template list
Returns:
Nothing
Side effects:
Compresses the removed template's ptr out of template ptrs array (see "back-copy", below)
Decrements template count
*/
void
CIncFile::RemoveTemplate
(
CTemplate* pTemplate
)
{
EnterCriticalSection(&m_csUpdate);
// find the template in list
int i = m_rgpTemplates.find(pTemplate);
// Remove the element (If we found it - possible that this is 2nd instance of #include and was previously removed)
if (i != -1)
{
m_rgpTemplates.removeAt(i);
// Notify the debugger that template dependency has changed
// (Ignore failure)
//
if (g_pDebugApp)
{
IF_DEBUG(SCRIPT_DEBUGGER)
DBGPRINTF((DBG_CONTEXT, "RemoveTemplate: Notifying debugger to refresh breakpoints\n"));
InvokeDebuggerWithThreadSwitch
(
g_pDebugApp,
DEBUGGER_EVENT_ON_REFRESH_BREAKPOINT,
static_cast<IDebugDocument *>(this)
);
}
}
LeaveCriticalSection(&m_csUpdate);
}
/* ============================================================================
CIncFile::FlushTemplates
Flushes all of this inc-file's templates from the global template cache
Returns:
TRUE if all templates flushed, FALSE if some left
Side effects:
None
*/
BOOL
CIncFile::FlushTemplates
(
)
{
/* NOTE we have a cross-dependency with RemoveTemplate() because the following call chain
occurs when an inc-file gets flushed:
CIncFileMap::Flush
CIncFile::FlushTemplates
CTemplateCacheManager::Flush
CTemplate::RemoveFromIncFiles
CIncFile::RemoveTemplate
The problem is that RemoveTemplate() updates m_cTemplates and m_rgTemplates, so these members
will not be stable during the loop within FlushTemplates.
To get around this, we make a local copy of m_rgTemplates.
*/
EnterCriticalSection(&m_csUpdate);
STACK_BUFFER( tempTemplates, 128 );
STACK_BUFFER( tempFile, MAX_PATH );
UINT cTemplates = m_rgpTemplates.length();
if (!tempTemplates.Resize(cTemplates * sizeof(CTemplate*))) {
// failed to get memory. The best we can do is return FALSE to indicate
// that not all templates where flushed.
LeaveCriticalSection(&m_csUpdate);
return FALSE;
}
CTemplate** rgpTemplates = static_cast<CTemplate**> (tempTemplates.QueryPtr());
memcpy(rgpTemplates, m_rgpTemplates.vec(), sizeof(CTemplate *) * cTemplates);
UINT cTemplatesFlushed = 0;
for(UINT i = 0; i < cTemplates; i++)
{
// If the template is ready now, flush it
if(rgpTemplates[i]->m_fReadyForUse && !(rgpTemplates[i]->m_fDontCache))
{
// bug 917: make a local copy of template file name, since the member gets freed part way through g_TemplateCache.Flush
TCHAR* szTemp = NULL;
szTemp = rgpTemplates[i]->GetSourceFileName();
if (szTemp)
{
if (!tempFile.Resize((_tcslen(szTemp) + 1)*sizeof(TCHAR))) {
// failed on this one. Continue and try to flush as many
// as we can.
continue;
}
TCHAR *szTemplateFile = (TCHAR *)tempFile.QueryPtr();
_tcscpy(szTemplateFile, szTemp);
g_TemplateCache.Flush(szTemplateFile, MATCH_ALL_INSTANCE_IDS);
cTemplatesFlushed++;
}
}
// If the template was not ready, we don't flush. It will probably
// pick up the current include file anyway
}
LeaveCriticalSection(&m_csUpdate);
return (cTemplates == cTemplatesFlushed);
}
/* ============================================================================
CIncFile::OnIncFileDecache
Callback which we use to call onDestroy events in the debugger just before
we are removed from the IncFile cache.
REF COUNTING NOTE:
Since debugging client has a reference to the IDebugDocument, the include needs
to dis-associate with the debugger at a point in time before destruction.
Otherwise, the reference will never go to zero.
*/
void
CIncFile::OnIncFileDecache
(
)
{
if (m_CPTextEvents.FIsEmpty() || g_pDebugApp == NULL)
return;
IEnumConnections *pConnIterator;
if (SUCCEEDED(m_CPTextEvents.EnumConnections(&pConnIterator)))
{
CONNECTDATA ConnectData;
while (pConnIterator->Next(1, &ConnectData, NULL) == S_OK)
{
IDebugDocumentTextEvents *pTextEventSink;
if (SUCCEEDED(ConnectData.pUnk->QueryInterface(IID_IDebugDocumentTextEvents, reinterpret_cast<void **>(&pTextEventSink))))
{
InvokeDebuggerWithThreadSwitch(g_pDebugApp, DEBUGGER_ON_DESTROY, pTextEventSink);
pTextEventSink->Release();
}
ConnectData.pUnk->Release();
}
pConnIterator->Release();
}
}
/* ****************************************************************************
CTemplate::CBuffer member functions
*/
/* ============================================================================
CTemplate::CBuffer::CBuffer
Ctor
*/
CTemplate::CBuffer::CBuffer()
:
m_pItems(NULL),
m_cSlots(0),
m_cItems(0),
m_pbData(NULL),
m_cbData(0),
m_cbDataUsed(0)
{
}
/* ============================================================================
CTemplate::CBuffer::~CBuffer
Dtor
*/
CTemplate::CBuffer::~CBuffer()
{
if(m_pItems)
CTemplate::SmallFree(m_pItems);
if(m_pbData)
CTemplate::LargeFree(m_pbData);
}
/* ============================================================================
CTemplate::CBuffer::Init
Inits a CBuffer
*/
void
CTemplate::CBuffer::Init
(
USHORT cSlots,
ULONG cbData
)
{
m_cSlots = cSlots;
m_cbData = cbData;
// Allocate space for storing byte range items
if(!(m_pItems = (CByteRange*) CTemplate::SmallMalloc(m_cSlots * sizeof(CByteRange))))
THROW(E_OUTOFMEMORY);
// Allocate space for storing local data, if there is any
if(m_cbData > 0)
{
if(!(m_pbData = (BYTE*) CTemplate::LargeMalloc(m_cbData)))
THROW(E_OUTOFMEMORY);
}
}
/* ============================================================================
CTemplate::CBuffer::Append
Appends to a CBuffer
*/
void
CTemplate::CBuffer::Append
(
const CByteRange& br, // byte range to append
BOOL fLocal, // append local?
UINT idSequence, // segment sequence id
CFileMap* pfilemap,
BOOL fLocalString // append local as a string? (length-prefixed, null-terminated)
)
{
// calc bytes required to store byte range; allow for length prefix and null if a local string
ULONG cbRequired = (ULONG)(br.m_cb + (fLocalString ? sizeof(br.m_cb) + 1 : 0));
// If caller passed a non-local zero-length byte range, no-op and return;
// allows callers to ignore byte range size
// NOTE we store empty local byte ranges - required by token list
if(!fLocal && br.m_cb == 0)
return;
if(fLocal)
{
if((m_cbData - m_cbDataUsed) < cbRequired)
{
// Reallocate space for storing local data - we grab twice what we had before
// or twice current requirement, whichever is more
m_cbData = 2 * (m_cbData > cbRequired ? m_cbData : cbRequired);
if(!(m_pbData = (BYTE*) CTemplate::LargeReAlloc(m_pbData, m_cbData)))
THROW(E_OUTOFMEMORY);
}
// if appending as a local string, copy length-prefix to buffer
if(fLocalString)
{
memcpy(m_pbData + m_cbDataUsed, &(br.m_cb), sizeof(br.m_cb));
m_cbDataUsed += sizeof(br.m_cb);
}
// copy data to buffer
memcpy(m_pbData + m_cbDataUsed, br.m_pb, br.m_cb);
m_cbDataUsed += br.m_cb;
// if appending as a local string, copy null terminator to buffer
if(fLocalString)
*(m_pbData + m_cbDataUsed++) = NULL;
}
if(m_cItems >= m_cSlots)
{
// Reallocate space for storing byte range items - we grab twice what we had before
m_cSlots *= 2;
if(!(m_pItems = (CByteRange*) CTemplate::SmallReAlloc(m_pItems, m_cSlots * sizeof(*m_pItems))))
THROW(E_OUTOFMEMORY);
}
// Set the (new) last item to this byte range
SetItem(m_cItems++, br, fLocal, idSequence, pfilemap, fLocalString);
}
/* ============================================================================
CTemplate::CBuffer::GetItem
Gets an item from a CBuffer, as a byte range
Returns:
Nothing
Side effects:
None
*/
void
CTemplate::CBuffer::GetItem
(
UINT i, // index of item
CByteRange& br // byte range containing returned item (out-parameter)
)
{
Assert(i < m_cItems);
// for local data, ptr is offset only; must add it to base ptr
br.m_pb = m_pItems[i].m_pb + (m_pItems[i].m_fLocal ? (DWORD_PTR) m_pbData : 0);
br.m_cb = m_pItems[i].m_cb;
br.m_fLocal = m_pItems[i].m_fLocal;
br.m_idSequence = m_pItems[i].m_idSequence;
br.m_pfilemap = m_pItems[i].m_pfilemap;
}
/* ============================================================================
CTemplate::CBuffer::SetItem
Sets a CBuffer item to a new value
Returns
Nothing
Side effects
Throws error on non-existent item index
*/
void
CTemplate::CBuffer::SetItem
(
UINT i,
const CByteRange& br, // byte range to set item to
BOOL fLocal, // is item local in buffer?
UINT idSequence, // segment sequence id
CFileMap * pfilemap, // file where segment came from
BOOL fLocalString // append local as a string? (length-prefixed, null-terminated)
)
{
// If buffer item i does not exist, fail
if(i >= m_cSlots)
THROW(E_FAIL);
// for local data, store ptr as offset only - avoids fixup after realloc
// NOTE offset == data used offset - length of data - null terminator (if local string)
m_pItems[i].m_pb = (fLocal
? (BYTE*)(m_cbDataUsed - br.m_cb -
(fLocalString
? sizeof(BYTE)
: 0
))
: (BYTE*)br.m_pb);
m_pItems[i].m_cb = br.m_cb;
m_pItems[i].m_fLocal = fLocal;
m_pItems[i].m_idSequence = idSequence;
m_pItems[i].m_pfilemap = pfilemap;
}
/* ============================================================================
CTemplate::CBuffer::PszLocal
Gets i-th locally-buffered string within the buffer.
Returns:
Ptr to locally-buffered string; NULL if not found
Side effects:
None
*/
LPSTR
CTemplate::CBuffer::PszLocal
(
UINT i // index of item to retrieve
)
{
CByteRange br;
GetItem(i, br);
if(!br.m_fLocal)
return NULL;
return (LPSTR) br.m_pb;
}
/* ****************************************************************************
CTemplate::CScriptStore member functions
*/
/* ============================================================================
CTemplate::CScriptStore::~CScriptStore
Destructor - frees memory
Returns:
nothing
Side effects:
none
*/
CTemplate::CScriptStore::~CScriptStore()
{
UINT i;
for(i = 0; i < m_cSegmentBuffers; i++)
delete m_ppbufSegments[i];
if(m_ppbufSegments != NULL)
CTemplate::SmallFree(m_ppbufSegments);
if(m_rgProgLangId != NULL)
CTemplate::SmallFree(m_rgProgLangId);
}
/* ============================================================================
CTemplate::CScriptStore::Init
Inits the script store
Returns:
nothing
Side effects:
allocates memory
*/
HRESULT
CTemplate::CScriptStore::Init
(
LPCSTR szDefaultScriptLanguage,
CLSID *pCLSIDDefaultEngine
)
{
HRESULT hr = S_OK;
UINT i;
CByteRange brDefaultScriptLanguage;
// Check for NULL pointers - can happen if Application has invalid default lang
if (szDefaultScriptLanguage == NULL || pCLSIDDefaultEngine == NULL)
return TYPE_E_ELEMENTNOTFOUND;
/* init segment buffers count based on:
- two for default engine (one primary, one tagged)
- one each for other engines (tagged only)
*/
m_cSegmentBuffers = C_SCRIPTENGINESDEFAULT + 1;
// init segments buffers
if(NULL == (m_ppbufSegments = (CBuffer**) CTemplate::SmallMalloc(m_cSegmentBuffers * sizeof(CBuffer*))))
{
hr = E_OUTOFMEMORY;
goto LExit;
}
for(i = 0; i < m_cSegmentBuffers; i++)
{
if(NULL == (m_ppbufSegments[i] = new CBuffer))
{
hr = E_OUTOFMEMORY;
goto LExit;
}
m_ppbufSegments[i]->Init((C_SCRIPTSEGMENTSDEFAULT), 0);
}
// Append default engine to script store
brDefaultScriptLanguage.m_cb = strlen(szDefaultScriptLanguage);
brDefaultScriptLanguage.m_pb = (unsigned char *)szDefaultScriptLanguage;
hr = AppendEngine(brDefaultScriptLanguage, pCLSIDDefaultEngine, /* idSequence */ 0);
LExit:
return hr;
}
/* ============================================================================
CTemplate::CScriptStore::AppendEngine
Appends a script engine to the script store
Returns:
HRESULT
Side effects:
None
*/
HRESULT
CTemplate::CScriptStore::AppendEngine
(
CByteRange& brEngine, // engine name
PROGLANG_ID* pProgLangId, // ptr to prog lang id - pass NULL to have this function get proglangid from registry
UINT idSequence // segment sequence id
)
{
HRESULT hr = S_OK;
USHORT cEngines; // count of engines
TRY
// if no engines yet, init engine names buffer
if(CountPreliminaryEngines() == 0)
m_bufEngineNames.Init(C_SCRIPTENGINESDEFAULT, 0);
// Append engine name to buffer
m_bufEngineNames.Append(brEngine, FALSE, idSequence, NULL);
CATCH(hrException)
hr = hrException;
goto LExit;
END_TRY
Assert(CountPreliminaryEngines() >= 1);
// malloc or realloc prog lang ids array
if((cEngines = CountPreliminaryEngines()) == 1)
m_rgProgLangId = (PROGLANG_ID*) CTemplate::SmallMalloc(cEngines * sizeof(PROGLANG_ID));
else
m_rgProgLangId = (PROGLANG_ID*) CTemplate::SmallReAlloc(m_rgProgLangId, cEngines * sizeof(PROGLANG_ID));
if(NULL == m_rgProgLangId)
{
hr = E_OUTOFMEMORY;
goto LExit;
}
if(NULL == pProgLangId)
// caller passed null progid ptr - get prog id from registry
hr = GetProgLangId(brEngine, &(m_rgProgLangId[cEngines - 1]));
else
// caller passed non-null progid ptr - set prog id from it
m_rgProgLangId[cEngines - 1] = *pProgLangId;
LExit:
return hr;
}
/* ============================================================================
CTemplate::CScriptStore::IdEngineFromBr
Determines the id of a script engine from its engine name
Returns:
id of script engine whose name is passed in
Side effects:
appends a new script engine name to engine names buffer
*/
USHORT
CTemplate::CScriptStore::IdEngineFromBr
(
CByteRange& brEngine, // engine name
UINT idSequence // segment sequence id
)
{
Assert(!brEngine.IsNull()); // NOTE we trap/error null engine name earlier
USHORT cKnownEngines = CountPreliminaryEngines();
// search existing names for a match; return id if found
for(USHORT i = 0; i < cKnownEngines; i++)
{
Assert(m_bufEngineNames[i]);
Assert(m_bufEngineNames[i]->m_pb);
if(FByteRangesAreEqual(*(m_bufEngineNames[i]), brEngine))
return i;
}
// if not found by name try to find by engine id
// (some engines with different names share the same id, like J[ava]Script)
if (cKnownEngines > 0)
{
PROGLANG_ID ProgLandId;
// we will get the prog lang id again inside AppendEngine() but
// because it's cached and this only happens when > 1 engine, it's alright
if (SUCCEEDED(GetProgLangId(brEngine, &ProgLandId)))
{
for(i = 0; i < cKnownEngines; i++)
{
// If matches don't append -- just return the index
if (m_rgProgLangId[i] == ProgLandId)
return i;
}
}
}
/* if we did not find engine among those already buffered
- append engine to script store
- realloc segment buffers array if necessary
- return index of last engine (the one we just appended)
*/
// append engine to script store
HRESULT hr = AppendEngine(brEngine, NULL, idSequence);
if(hr == TYPE_E_ELEMENTNOTFOUND)
// if prog lang not found, throw bad prog lang error id
THROW(IDE_TEMPLATE_BAD_PROGLANG);
else if(FAILED(hr))
// other failure: re-throw hresult
THROW(hr);
// realloc segment buffers array if necessary
if(CountPreliminaryEngines() > (m_cSegmentBuffers - 1))
{
// increment count of segment buffers
m_cSegmentBuffers++;
Assert(CountPreliminaryEngines() == m_cSegmentBuffers - 1);
// realloc array of ptrs
if(NULL == (m_ppbufSegments = (CBuffer**) CTemplate::SmallReAlloc(m_ppbufSegments, m_cSegmentBuffers * sizeof(CBuffer*))))
THROW(E_OUTOFMEMORY);
// allocate the new buffer
if(NULL == (m_ppbufSegments[m_cSegmentBuffers - 1] = new CBuffer))
THROW(E_OUTOFMEMORY);
// init the new buffer
m_ppbufSegments[m_cSegmentBuffers - 1]->Init(C_SCRIPTSEGMENTSDEFAULT, 0);
}
// return index of last engine (the one we just appended)
return (CountPreliminaryEngines() - 1);
}
/* ============================================================================
CTemplate::CScriptStore::AppendScript
Appends a script/engine pair to the store.
Returns:
Nothing
Side effects:
None
*/
void
CTemplate::CScriptStore::AppendScript
(
CByteRange& brScript, // script text
CByteRange& brEngine, // script engine name
BOOLB fPrimary, // primary or tagged script?
UINT idSequence, // segment sequence id
CFileMap* pfilemapCurrent
)
{
USHORT iBuffer; // buffer id
Assert(fPrimary || !brEngine.IsNull()); // NOTE we trap/error null engine name earlier
Assert(m_bufEngineNames[0]); // page's primary engine must be known by this point
Assert(m_bufEngineNames[0]->m_pb);
if(fPrimary)
// if primary script (not tagged), buffer id is 0
iBuffer = 0;
else if((!fPrimary) && FByteRangesAreEqual(brEngine, /* bug 1008: primary script engine name */ *(m_bufEngineNames[0])))
// if tagged script and engine is primary, buffer id is 1
iBuffer = 1;
else
// else, buffer id is engine id plus 1
iBuffer = IdEngineFromBr(brEngine, idSequence) + 1;
// append script segment to iBuffer-th segments buffer
m_ppbufSegments[iBuffer]->Append(brScript, FALSE, idSequence, pfilemapCurrent);
}
/* ****************************************************************************
CTemplate::CObjectInfoStore member functions
*/
/* ============================================================================
CTemplate::CObjectInfoStore::~CObjectInfoStore
*/
CTemplate::CObjectInfoStore::~CObjectInfoStore
(
)
{
if(m_pObjectInfos)
CTemplate::SmallFree(m_pObjectInfos);
}
/* ============================================================================
CTemplate::CObjectInfoStore::Init
Inits the object-info store
*/
void
CTemplate::CObjectInfoStore::Init()
{
m_bufObjectNames.Init(C_OBJECTINFOS_DEFAULT, 0);
// init object-infos array
if(NULL == (m_pObjectInfos = (CObjectInfo*) CTemplate::SmallMalloc(m_bufObjectNames.CountSlots() * sizeof(CObjectInfo))))
THROW(E_OUTOFMEMORY);
}
/* ============================================================================
CTemplate::CObjectInfoStore::AppendObject
Appends an object-info to the object-info store
*/
void
CTemplate::CObjectInfoStore::AppendObject
(
CByteRange& brObjectName,
CLSID clsid,
CompScope scope,
CompModel model,
UINT idSequence
)
{
USHORT iObject = m_bufObjectNames.Count();
if(iObject >= m_bufObjectNames.CountSlots())
{
// Reallocate space for storing object-infos - we grab twice what we had before
// NOTE we keep no object count in CObjectInfoStore, but instead use count in object names buffer
(m_pObjectInfos = (CObjectInfo*)CTemplate::SmallReAlloc(m_pObjectInfos,
2 * m_bufObjectNames.CountSlots() * sizeof(CObjectInfo)));
if (m_pObjectInfos == NULL)
THROW(E_OUTOFMEMORY);
}
m_pObjectInfos[iObject].m_clsid = clsid;
m_pObjectInfos[iObject].m_scope = scope;
m_pObjectInfos[iObject].m_model = model;
m_bufObjectNames.Append(brObjectName, FALSE, idSequence, NULL);
}
/* ****************************************************************************
CTemplate::CWorkStore member functions
*/
/* ============================================================================
CTemplate::CWorkStore::CWorkStore
Constructor
Returns:
Nothing
Side effects:
None
*/
CTemplate::CWorkStore::CWorkStore
(
)
:
m_idCurSequence(0),
m_fPageCommandsExecuted(FALSE),
m_fPageCommandsAllowed(TRUE),
m_szWriteBlockOpen(g_szWriteBlockOpen),
m_szWriteBlockClose(g_szWriteBlockClose),
m_szWriteOpen(g_szWriteOpen),
m_szWriteClose(g_szWriteClose),
m_pbPrevSource(NULL),
m_cPrevSourceLines(0),
m_hPrevFile (NULL)
{
m_cchWriteBlockOpen = strlen (m_szWriteBlockOpen);
m_cchWriteBlockClose = strlen(m_szWriteBlockClose);
m_cchWriteOpen = strlen(m_szWriteOpen);
m_cchWriteClose = strlen(m_szWriteClose);
}
/* ============================================================================
CTemplate::CWorkStore::~CWorkStore
Destructor
Returns:
Nothing
Side effects:
None
*/
CTemplate::CWorkStore::~CWorkStore
(
)
{
/* if language element ptrs are anything but their constant defaults or null,
they must have been allocated during compilation - free them now
*/
if(m_szWriteBlockOpen != g_szWriteBlockOpen && m_szWriteBlockOpen != NULL)
CTemplate::SmallFree(m_szWriteBlockOpen);
if(m_szWriteBlockClose != g_szWriteBlockClose && m_szWriteBlockClose != NULL)
CTemplate::SmallFree(m_szWriteBlockClose);
if(m_szWriteOpen != g_szWriteOpen && m_szWriteOpen != NULL)
CTemplate::SmallFree(m_szWriteOpen);
if(m_szWriteClose != g_szWriteClose && m_szWriteClose != NULL)
CTemplate::SmallFree(m_szWriteClose);
}
/* ============================================================================
CTemplate::CWorkStore::Init
Inits the workstore
Returns:
Nothing
Side effects:
None
*/
void
CTemplate::CWorkStore::Init
(
)
{
/*
NOTE init we the scriptstore separately from rest of workstore
because try-catch in CTemplate::Init() apparently doesn't work to detect
bogus script engine name; we need to get an hr back instead.
m_ScriptStore.Init(brDefaultEngine);
*/
m_ObjectInfoStore.Init();
m_bufHTMLSegments.Init(C_HTMLSEGMENTSDEFAULT, 0);
}
/* ============================================================================
CTemplate::CWorkStore::CRequiredScriptEngines
Returns the count of script engines in the script store that are required
to run the template.
NOTE this function is part of the fix for bug 933
Returns:
Count of non-empty script engines
Side effects:
None
*/
USHORT
CTemplate::CWorkStore::CRequiredScriptEngines
(
BOOL fGlobalAsa // bug 1394: is template global.asa?
)
{
USHORT cPreliminaryEngines = m_ScriptStore.CountPreliminaryEngines();
USHORT cRequiredEngines = 0;
for(USHORT i = 0; i < cPreliminaryEngines; i++)
{
if(FScriptEngineRequired(i, fGlobalAsa))
cRequiredEngines++;
}
return cRequiredEngines;
}
/* ============================================================================
CTemplate::CWorkStore::FScriptEngineRequired
Is a given preliminary script engine required to run the template?
NOTE this function is part of the fix for bug 933
Returns:
TRUE or FALSE
Side effects:
None
*/
BOOLB
CTemplate::CWorkStore::FScriptEngineRequired
(
USHORT idEnginePrelim,
BOOL fGlobalAsa // bug 1394: is template global.asa?
)
{
if(idEnginePrelim == 0)
return ( // primary engine (id 0) required if
(m_ScriptStore.m_ppbufSegments[0]->Count() > 0) // ... script buffer 0 has segments
|| (m_ScriptStore.m_ppbufSegments[1]->Count() > 0) // ... or script buffer 1 has segments
|| ((m_bufHTMLSegments.Count() > 0) && !fGlobalAsa) // ... or html buffer has segments and (bug 1394) template is not global.asa
);
// non-primary engine required if script buffer id+1 has segments
return (m_ScriptStore.m_ppbufSegments[idEnginePrelim + 1]->Count() > 0);
}
/* ****************************************************************************
CTemplate::CFileMap member functions
*/
/* ============================================================================
CTemplate::CFileMap::CFileMap
Constructor
Returns
Nothing
Side effects
None
*/
CTemplate::CFileMap::CFileMap()
:
m_szPathInfo(NULL),
m_szPathTranslated(NULL),
m_pfilemapSibling(NULL),
m_pfilemapChild(NULL),
m_hFile(NULL),
m_hMap(NULL),
m_pbStartOfFile(NULL),
m_pIncFile(NULL),
m_pSecurityDescriptor(NULL),
m_dwSecDescSize(0),
m_fIsUNCPath(FALSE),
m_fIsEncryptedFile(FALSE),
m_cChars(0),
m_pDME(NULL),
m_dwFileSize(0)
{
m_ftLastWriteTime.dwLowDateTime = 0;
m_ftLastWriteTime.dwHighDateTime = 0;
}
/* ============================================================================
CTemplate::CFileMap::~CFileMap
Destructor
Returns
Nothing
Side effects
None
*/
CTemplate::CFileMap::~CFileMap()
{
if (m_pDME)
{
m_pDME->Release();
m_pDME = NULL;
}
if(m_szPathInfo != NULL)
CTemplate::SmallFree(m_szPathInfo);
if(m_szPathTranslated != NULL)
CTemplate::SmallFree(m_szPathTranslated);
if(m_pSecurityDescriptor != NULL)
CTemplate::SmallFree(m_pSecurityDescriptor);
if (m_pIncFile != NULL)
m_pIncFile->Release();
}
/* ============================================================================
CTemplate::CFileMap::MapFile
Memory-maps a file.
Returns
Nothing
Side effects
Throws **overloaded** exception on error: exception code can sometimes be
an error message id, sometimes a true exception. Caller must handle.
*/
void
CTemplate::CFileMap::MapFile
(
LPCTSTR szFileSpec, // file spec for this file
LPCTSTR szApplnPath, // application path (in case its global.asa)
CFileMap* pfilemapParent, // ptr to filemap of parent file
BOOL fVirtual, // is file spec virtual or relative?
CHitObj* pHitObj, // ptr to template's hit object
BOOL fGlobalAsa // is this file the global.asa file?
)
{
BOOL fMustNormalize = TRUE;
BOOL fImpersonatedUser = FALSE;
HANDLE hVirtIncImpToken = NULL;
HANDLE hCurImpToken = NULL;
Assert((pfilemapParent != NULL) || (pHitObj->PIReq() != NULL) || fGlobalAsa);
/* three possible cases:
1) we are processing global.asa file
2) we are processing the "main" .asp file
3) we are processing an include file
*/
if(fGlobalAsa)
{
// case 1) we are processing global.asa file
Assert(pHitObj->GlobalAspPath());
DWORD cchPathTranslated = _tcslen(pHitObj->GlobalAspPath());
m_szPathTranslated = (TCHAR *)CTemplate::SmallMalloc((cchPathTranslated+1)*sizeof(TCHAR));
if (!m_szPathTranslated)
THROW(E_OUTOFMEMORY);
_tcscpy(m_szPathTranslated, pHitObj->GlobalAspPath());
//
// In case of Global.asa copy ApplnMDPath to pathinfo. This is because when VBScript throws an exception for errors in global.asa to the eventlog.
// it becomes impossible to determine which global.asa failed. For this reason, we copy the ApplnMDPath to PathInfo so that the nt log will contain
// a pointer to the locatoin of the faulty global.asa
//
DWORD cchPathInfo = _tcslen(pHitObj->PIReq()->QueryPszApplnMDPath()) + 11; // 11 = /global.asa
m_szPathInfo = (TCHAR *)CTemplate::SmallMalloc((cchPathInfo+1) * sizeof(TCHAR));
if (!m_szPathInfo)
THROW(E_OUTOFMEMORY);
_tcscpy(strcpyEx(m_szPathInfo, pHitObj->PIReq()->QueryPszApplnMDPath()), _T("/global.asa"));
// no need to normalize in this case, since global.asa path is already normalized
Assert(IsNormalized((const TCHAR*)m_szPathTranslated));
fMustNormalize = FALSE;
m_fHasVirtPath = TRUE;
}
else if(pfilemapParent == NULL)
{
// case 2) we are processing the "main" .asp file: get path-info and path-tran from ecb
Assert(pHitObj->PIReq());
TCHAR *szVirtPath = pHitObj->PSzCurrTemplateVirtPath();
TCHAR *szPhysPath = pHitObj->PSzCurrTemplatePhysPath();
m_szPathInfo = static_cast<LPTSTR>(CTemplate::SmallMalloc((_tcslen(szVirtPath) + 1)*sizeof(TCHAR)));
m_szPathTranslated = static_cast<LPTSTR>(CTemplate::SmallMalloc((_tcslen(szPhysPath) + 1)*sizeof(TCHAR)));
if (!m_szPathInfo || !m_szPathTranslated)
THROW(E_OUTOFMEMORY);
_tcscpy(m_szPathInfo, szVirtPath);
_tcscpy(m_szPathTranslated, szPhysPath);
// no need to normalize in this case, since ecb's path-tran is already normalized
Assert(IsNormalized((const TCHAR*)m_szPathTranslated));
fMustNormalize = FALSE;
m_fHasVirtPath = TRUE;
}
else
{
/* case 3) we are processing an include file: resolve filespec into path-info and path-tran
based on whether file was included with VIRTUAL tag or FILE tag
*/
Assert(szFileSpec);
// in this case, we don't know path lengths up front so we alloc the max and realloc below
m_szPathInfo = static_cast<LPTSTR> (CTemplate::SmallMalloc((MAX_PATH + 1)*sizeof(TCHAR)));
m_szPathTranslated = static_cast<LPTSTR> (CTemplate::SmallMalloc((MAX_PATH + 1)*sizeof(TCHAR)));
if (!m_szPathInfo || !m_szPathTranslated)
THROW(E_OUTOFMEMORY);
STACK_BUFFER(tempPathT, (MAX_PATH+1)*sizeof(TCHAR) );
if (!tempPathT.Resize((_tcslen(szFileSpec) + 1)*sizeof(TCHAR))) {
THROW(E_OUTOFMEMORY);
}
LPTSTR szPathTranslatedT = (TCHAR *)tempPathT.QueryPtr(); // temp path-tran
if(fVirtual) {
DWORD dwSzLength = tempPathT.QuerySize(); // length of path string buffer
if (_tcslen(szFileSpec) > MAX_PATH)
THROW(E_FAIL);
// VIRTUAL: path-info is simply virtual filespec
_tcscpy(m_szPathInfo, szFileSpec);
// VIRTUAL: path-tran is translation of path-info
_tcscpy(szPathTranslatedT, m_szPathInfo);
if (!pHitObj->PIReq()->MapUrlToPath(szPathTranslatedT, &dwSzLength))
THROW(E_FAIL);
// Check the translated path for a UNC specified path . Ignore Hr
HRESULT hr = S_OK;
if (IsFileUNC (szPathTranslatedT, hr))
{
// if UNC, then ask WAM for the impersonation token for
// this UNC VRoot. Silently fail.
if (SUCCEEDED(pHitObj->PIReq()->GetVirtualPathToken(szFileSpec,
&hVirtIncImpToken))) {
// set the impersonation token and note that we did so
// NOTE - there is intentionally no error checking. The
// assumption being that we are doing best effort at the
// impersonation because throwing an error here could be
// tricky for the user to interpret the problem. However,
// if the impersonation fails, and ASP can still open the
// file (e.g. passthru authentication), then everyone's
// happy.
AspDoRevertHack(&hCurImpToken);
fImpersonatedUser = ImpersonateLoggedOnUser(hVirtIncImpToken);
if (!fImpersonatedUser)
{
AspUndoRevertHack(&hCurImpToken);
}
}
}
m_fHasVirtPath = TRUE;
}
else
{
if (_tcslen(pfilemapParent->m_szPathInfo) >= MAX_PATH)
THROW(E_FAIL);
TCHAR szParentDir[MAX_PATH], *szT;
_tcscpy(szParentDir, pfilemapParent->m_szPathInfo);
//force null termination.
szParentDir[MAX_PATH-1] = _T('\0');
DWORD strlen_szParentDir = _tcslen(szParentDir);
if ((szT = _tcsrchr(szParentDir, _T('/'))) != NULL)
{
*szT = _T('\0');
strlen_szParentDir = (int)(szT - szParentDir);
}
// If we don't allow parent paths, we can save lots of time (Always have a valid virtual path)
if (!pHitObj->QueryAppConfig()->fEnableParentPaths())
{
//int strlen_szParentDir = (int)(szT - szParentDir);
if ((strlen_szParentDir + 1 + _tcslen(szFileSpec)) >= MAX_PATH)
THROW(E_FAIL);
strcpyEx(strcpyEx(strcpyEx(m_szPathInfo, szParentDir), _T("/")), szFileSpec);
m_fHasVirtPath = TRUE;
}
else
{
// NOTE: If we must translate ".." paths, there is no need to verify them (by remapping)
// because: If the file does not exist, that case will show up when the file is mapped
// If we ".." ourselves out of the vroot space, (out of the app or into another app)
// DotPathToPath will detect this.
//
if (DotPathToPath(m_szPathInfo, szFileSpec, szParentDir))
m_fHasVirtPath = TRUE;
else
{
GetPathFromParentAndFilespec(pfilemapParent->m_szPathTranslated, szFileSpec, &m_szPathInfo);
m_fHasVirtPath = FALSE;
}
}
GetPathFromParentAndFilespec(pfilemapParent->m_szPathTranslated, szFileSpec, &szPathTranslatedT);
}
// bug 1214: get canonical path-tran, without . and ..
// CONSIDER check for . or .. in name before calling GetFullPathName? UNCs? what else?
GetFullPathName(
szPathTranslatedT, // LPCSTR lpFileName, // address of name of file to find path for
MAX_PATH + 1, // DWORD nBufferLength, // size, in characters, of path buffer
m_szPathTranslated, // LPSTR lpBuffer, // address of path buffer
NULL // LPSTR *lpFilePart // address of filename in path
);
// realloc path strings to only use required memory (see note above)
m_szPathInfo = static_cast<LPTSTR> (CTemplate::SmallReAlloc(m_szPathInfo, (_tcslen(m_szPathInfo) + 1)*sizeof(TCHAR)));
m_szPathTranslated = static_cast<LPTSTR> (CTemplate::SmallReAlloc(m_szPathTranslated, (_tcslen(m_szPathTranslated) + 1)*sizeof(TCHAR)));
if (!m_szPathInfo || !m_szPathTranslated) {
if (fImpersonatedUser)
AspUndoRevertHack(&hCurImpToken);
if (hVirtIncImpToken)
CloseHandle(hVirtIncImpToken);
THROW(E_OUTOFMEMORY);
}
}
// if required, normalize path-tran so that
// a) cyclic include check can ignore case; b) inc-file cache lookups will work
if(fMustNormalize)
Normalize(m_szPathTranslated);
Assert(IsNormalized(m_szPathTranslated));
// Bug 99071: Attempt to open the file **BEFORE** we add it to the tree of file
// dependencies. Otherwise if it fails to open, we will have
// dangling references. Since FCyclicInclude depends on us adding
// to the tree, if it is cyclic, we need to unmap then. Since that
// is a very uncommon error case, the extra overhead is probably OK
//
// RemapFile will throw if it fails. If the exception is that the source file is empty
// and we are trying to process an include file, we will handle the exception here.
// in all other cases, rethrow the exception. We do this so that an empty include file
// will be harmless, but an empty primary file will fail.
TRY
RemapFile();
CATCH(hrException)
if (hrException != E_SOURCE_FILE_IS_EMPTY || pfilemapParent == NULL) {
if (fImpersonatedUser)
AspUndoRevertHack(&hCurImpToken);
if (hVirtIncImpToken)
CloseHandle(hVirtIncImpToken);
THROW(hrException);
}
END_TRY
if (fImpersonatedUser)
AspUndoRevertHack(&hCurImpToken);
if (hVirtIncImpToken)
CloseHandle(hVirtIncImpToken);
// Create the tree structure for this file
if (pfilemapParent != NULL)
{
// See if this file is already included once on this level. (Don't show duplicates in the
// debugger tree view)
//
BOOL fDuplicateExists = FALSE;
CFileMap *pFilemap = pfilemapParent->m_pfilemapChild;
while (pFilemap != NULL && !fDuplicateExists)
{
if (_tcscmp(pFilemap->m_szPathTranslated, m_szPathTranslated) == 0)
fDuplicateExists = TRUE;
pFilemap = pFilemap->m_fHasSibling? pFilemap->m_pfilemapSibling : NULL;
}
// If the include file is #include'd more than once, don't add it as a sibling.
// Rather orphan the pfilemap and just set the parent pointer.
//
if (!fDuplicateExists)
{
if (pfilemapParent->m_pfilemapChild == NULL)
pfilemapParent->m_pfilemapChild = this;
else
pfilemapParent->m_pfilemapChild->AddSibling(this);
}
}
// in both of the above code paths, we are always added as the LAST child, (or we are an orphan node)
// so it is safe to set the parent without calling SetParent()
m_fHasSibling = FALSE; // Paranoia
m_pfilemapParent = pfilemapParent;
// hurl if this file is being included by itself (perhaps indirectly)
if(FCyclicInclude(m_szPathTranslated)) {
UnmapFile();
THROW(IDE_TEMPLATE_CYCLIC_INCLUDE);
}
}
/* ============================================================================
CTemplate::CFileMap::RemapFile
map a file that was previously mapped.
Returns
Nothing
Side effects
Throws **overloaded** exception on error: exception code can sometimes be
an error message id, sometimes a true exception. Caller must handle.
Does not decrypt EASPs on remapping. Caller must decrypt if required. This
function is called by the debugger, and the debugger does not allow access
to decrypted files, so decryption is a waste of time.
*/
void
CTemplate::CFileMap::RemapFile
(
)
{
HRESULT hr = S_OK;
if (FIsMapped())
return;
// Limit the size of the file that can be opened by ASP to MAX_PATH until we remove all assumptions ASP
// makes about MAX_PATH
if (_tcslen(m_szPathTranslated) >= MAX_PATH)
THROW (E_COULDNT_OPEN_SOURCE_FILE);
//
// Check if the File is on a UNC.
// IGNORE the HRESULT value as whatever it was will/should also show up in the call to ASPCreateFile (MakePathCanonicalizationProof)
//
m_fIsUNCPath = IsFileUNC(m_szPathTranslated, hr);
if(INVALID_HANDLE_VALUE == (m_hFile =
AspCreateFile(
m_szPathTranslated, // file name
GENERIC_READ, // access (read-write) mode
FILE_SHARE_READ, // share mode
NULL, // pointer to security descriptor
OPEN_EXISTING, // how to create
FILE_ATTRIBUTE_NORMAL, // file attributes
NULL // handle to file with attributes to copy
)))
{
DWORD dwLastError = GetLastError();
if(dwLastError == ERROR_ACCESS_DENIED)
{
// typically, we end up here if the user has no permissions on the file
// bug 1007: however, we also end up here if the user gave us a directory name, instead of a file name
WIN32_FILE_ATTRIBUTE_DATA fad;
if(GetFileAttributesEx(m_szPathTranslated, GetFileExInfoStandard, &fad) == 0)
{
// bug 1495: file in a secured directory will end up here - we need to re-GetLastError to see if access is denied
dwLastError = GetLastError();
if(dwLastError == ERROR_ACCESS_DENIED)
{
THROW(E_USER_LACKS_PERMISSIONS);
}
// GetFileAttributes call failed; don't know why
THROW(E_FAIL);
}
else if(FILE_ATTRIBUTE_DIRECTORY & fad.dwFileAttributes)
{
// bug 1007: the user gave us a directory name
#if UNICODE
DBGPRINTF((DBG_CONTEXT, "Failed to open file %S because it is a directory.\n", m_szPathTranslated));
#else
DBGPRINTF((DBG_CONTEXT, "Failed to open file %s because it is a directory.\n", m_szPathTranslated));
#endif
THROW(E_COULDNT_OPEN_SOURCE_FILE);
}
else
{
THROW(E_USER_LACKS_PERMISSIONS);
}
}
else
{
#if DBG
char szError[128];
if (!FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
dwLastError,
0L, // lang ID - defaults to LANG_NEUTRAL
szError,
sizeof szError,
NULL) )
{
sprintf(szError, "%d", dwLastError);
}
#if UNICODE
DBGPRINTF((DBG_CONTEXT, "Failed to open file %S\n", m_szPathTranslated));
#else
DBGPRINTF((DBG_CONTEXT, "Failed to open file %s\n", m_szPathTranslated));
#endif
DBGPRINTF((DBG_CONTEXT, " The error returned was: %s\n", szError));
#endif
THROW(E_COULDNT_OPEN_SOURCE_FILE);
}
}
//
// Get LastWriteTime, FileSize and its Attributes
//
DWORD dwFileAttributes;
if (FAILED(AspGetFileAttributes(m_szPathTranslated, m_hFile, &m_ftLastWriteTime, &m_dwFileSize, &dwFileAttributes)))
{
DBGPRINTF((DBG_CONTEXT,"ASP could not retrieve file attributes even though it could open the file.\n"));
// THROW Server 500 Error
// Quick and dirty way: THROW E_FAIL
// Correct way: Call Handle500Error/HandleError with all parameters and corresponding string.
THROW (E_FAIL);
}
//
// Does the File have the Encrypted attribute bit set
//
m_fIsEncryptedFile = (dwFileAttributes & FILE_ATTRIBUTE_ENCRYPTED ) ? TRUE : FALSE;
// get file's security descriptor (only if not UNC or encrypted)
if (!m_fIsUNCPath)
{
if (!GetSecurityDescriptor())
THROW(E_COULDNT_OPEN_SOURCE_FILE);
}
// map the file
if(NULL == (m_hMap =
CreateFileMapping(
m_hFile, // handle to file to map
NULL, // optional security attributes
PAGE_READONLY, // protection for mapping object
0, // high-order 32 bits of object size
0, // low-order 32 bits of object size
NULL // name of file-mapping object
)))
{
DWORD nFileSize;
if (SUCCEEDED(AspGetFileAttributes(m_szPathTranslated, m_hFile, NULL, &nFileSize)))
{
if(nFileSize == 0)
{
#if UNICODE
DBGPRINTF((DBG_CONTEXT, "Empty source file %S\n", m_szPathTranslated));
#else
DBGPRINTF((DBG_CONTEXT, "Empty source file %s\n", m_szPathTranslated));
#endif
THROW(E_SOURCE_FILE_IS_EMPTY);
}
}
else
{
THROW(E_COULDNT_OPEN_SOURCE_FILE);
}
}
// set file's start-of-file ptr
if(NULL == (m_pbStartOfFile =
(PBYTE) MapViewOfFile(
m_hMap, // file-mapping object to map into address space
FILE_MAP_READ, // access mode
0, // high-order 32 bits of file offset
0, // low-order 32 bits of file offset
0 // number of bytes to map
)))
THROW(E_COULDNT_OPEN_SOURCE_FILE);
}
/* ============================================================================
CTemplate::CFileMap::SetParent
Set the parent for this filemap
*/
void
CTemplate::CFileMap::SetParent
(
CFileMap* pfilemapParent
)
{
CFileMap *pfilemap = this;
while (pfilemap->m_fHasSibling)
pfilemap = pfilemap->m_pfilemapSibling;
pfilemap->m_pfilemapParent = pfilemapParent;
}
/* ============================================================================
CTemplate::CFileMap::GetParent
Get the parent for this filemap
*/
CTemplate::CFileMap*
CTemplate::CFileMap::GetParent
(
)
{
register CFileMap *pfilemap = this;
while (pfilemap->m_fHasSibling)
pfilemap = pfilemap->m_pfilemapSibling;
return pfilemap->m_pfilemapParent;
}
/* ============================================================================
CTemplate::CFileMap::AddSibling
Add a new node as a sibling of this
*/
void
CTemplate::CFileMap::AddSibling
(
register CFileMap* pfilemapSibling
)
{
register CFileMap *pfilemap = this;
while (pfilemap->m_fHasSibling)
pfilemap = pfilemap->m_pfilemapSibling;
pfilemapSibling->m_fHasSibling = FALSE;
pfilemapSibling->m_pfilemapParent = pfilemap->m_pfilemapParent;
pfilemap->m_fHasSibling = TRUE;
pfilemap->m_pfilemapSibling = pfilemapSibling;
}
/* ============================================================================
CTemplate::CFileMap::FCyclicInclude
Is a file among this filemap's ancestors? (i.e. does it occur anywhere
in the filemap's parent chain?)
Returns
TRUE or FALSE
Side effects
None
*/
BOOL
CTemplate::CFileMap::FCyclicInclude
(
LPCTSTR szPathTranslated
)
{
CFileMap *pfilemapParent = GetParent();
if(pfilemapParent == NULL)
return FALSE;
// NOTE we ignore case because path-tran was normalized
if(_tcscmp(szPathTranslated, pfilemapParent->m_szPathTranslated) == 0)
return TRUE;
return pfilemapParent->FCyclicInclude(szPathTranslated);
}
/* ============================================================================
CTemplate::CFileMap::GetSecurityDescriptor
Gets a file's security descriptor
Returns
TRUE if we got security descriptor, else FALSE
Side effects
allocates memory
*/
BOOL
CTemplate::CFileMap::GetSecurityDescriptor
(
)
// ACLs: the following code should in future be shared with IIS (see creatfil.cxx in IIS project)
{
BOOL fRet = TRUE; // return value
BOOL fGotSecurityDescriptor; // did we get a security descriptor?
DWORD dwSecDescSizeNeeded = 0; // required size of security descriptor
DWORD dwLastError; // last error code
const SECURITY_INFORMATION si = OWNER_SECURITY_INFORMATION // security info struct
| GROUP_SECURITY_INFORMATION
| DACL_SECURITY_INFORMATION;
// get required buffer size before malloc
// NOTE this costs us an extra system call, but means the cached template will often use less memory
// we must do this up front by passing 0 buffer size because when the call succeeds it returns
// dwSecDescSizeNeeded == 0 (i.e. we can't realloc to shrink after successful call)
GetKernelObjectSecurity(
m_hFile, // handle of object to query
si, // requested information
NULL, // address of security descriptor
0, // size of buffer for security descriptor
&dwSecDescSizeNeeded // address of required size of buffer
);
if((dwLastError = GetLastError()) != ERROR_INSUFFICIENT_BUFFER)
{
// pretend everything's fine -- just NULL security descriptor
if(m_pSecurityDescriptor != NULL)
CTemplate::SmallFree(m_pSecurityDescriptor);
m_pSecurityDescriptor = NULL;
m_dwSecDescSize = 0;
if (dwLastError == ERROR_NOT_SUPPORTED)
return TRUE;
else
return FALSE;
}
// set member buffer size to just enough chunks to accommodate security descriptor size needed
m_dwSecDescSize = ((dwSecDescSizeNeeded + SECURITY_DESC_GRANULARITY - 1) / SECURITY_DESC_GRANULARITY)
* SECURITY_DESC_GRANULARITY;
// allocate memory for security descriptor
// (Note: security descriptor may already be allocated if this is a remap)
if (m_pSecurityDescriptor == NULL)
if(NULL == (m_pSecurityDescriptor = (PSECURITY_DESCRIPTOR) CTemplate::SmallMalloc(m_dwSecDescSize)))
THROW(E_OUTOFMEMORY);
// try to get security descriptor until we succeed, or until we fail for some reason other than buffer-too-small
while(TRUE)
{
// attempt to get security descriptor
fGotSecurityDescriptor = GetKernelObjectSecurity(
m_hFile, // handle of object to query
si, // requested information
m_pSecurityDescriptor, // address of security descriptor
m_dwSecDescSize, // size of buffer for security descriptor
&dwSecDescSizeNeeded // address of required size of buffer
);
// get last error immediately after call
dwLastError = fGotSecurityDescriptor
? 0 // we got a security descriptor: set last error to 0
: GetLastError(); // we didn't get a security descriptor: get last error
if(fGotSecurityDescriptor)
// we got a security descriptor, so break
// NOTE we can't realloc m_pSecurityDescriptor to free its unused memory
// because dwSecDescSizeNeeded is 0 after successful call
break;
else if(dwLastError == ERROR_INSUFFICIENT_BUFFER)
{
// we didn't get a security descriptor because buffer was too small: increase buffer size, realloc and continue.
Assert(m_dwSecDescSize < dwSecDescSizeNeeded);
// set member buffer size to just enough chunks to accommodate security descriptor size needed
m_dwSecDescSize = ((dwSecDescSizeNeeded + SECURITY_DESC_GRANULARITY - 1) / SECURITY_DESC_GRANULARITY)
* SECURITY_DESC_GRANULARITY;
if(NULL == (m_pSecurityDescriptor = (PSECURITY_DESCRIPTOR) CTemplate::SmallReAlloc(m_pSecurityDescriptor, m_dwSecDescSize)))
THROW(E_OUTOFMEMORY);
}
else
{
// we didn't get a security descriptor for some random reason: return failure
fRet = FALSE;
break;
}
}
return fRet;
}
/* ============================================================================
CTemplate::CFileMap::UnmapFile
Unmaps a memory-mapped file
NOTE this leaves the filemap's path-info and path-tran members intact
Returns
Nothing
Side effects
None
*/
void
CTemplate::CFileMap::UnmapFile
(
)
{
if(m_pbStartOfFile != NULL)
if(!UnmapViewOfFile(m_pbStartOfFile)) THROW(E_FAIL);
if(m_hMap!= NULL)
if(!CloseHandle(m_hMap)) THROW(E_FAIL);
if(m_hFile != NULL && m_hFile != INVALID_HANDLE_VALUE)
if(!CloseHandle(m_hFile)) THROW(E_FAIL);
// Null-ify ptr and handles, since MapFile checks for non-null
m_pbStartOfFile = NULL;
m_hMap = NULL;
m_hFile = NULL;
}
/* ============================================================================
CTemplate::CFileMap::CountChars
Count the number of characters in the (open) filemap
Returns:
# of characters in the file
*/
DWORD
CTemplate::CFileMap::CountChars
(
WORD wCodePage
)
{
// Bug 84284: Scripts containing object tags only do not have the DBCS table built
// (Because there is no line mapping table to base it from)
//
CTemplate::COffsetInfo *pOffsetInfoLast, oiZero;
pOffsetInfoLast = (m_rgByte2DBCS.length() == 0)
? &oiZero
: &m_rgByte2DBCS[m_rgByte2DBCS.length() - 1];
// If GetSize() fails don't count the remaining DBCS characters - otherwise an AV
DWORD cchFilemap = GetSize();
if (cchFilemap != 0xFFFFFFFF && cchFilemap != 0)
{
// Count DBCS characters
m_cChars = pOffsetInfoLast->m_cchOffset +
CharAdvDBCS(wCodePage,
reinterpret_cast<char *>(m_pbStartOfFile + pOffsetInfoLast->m_cbOffset),
reinterpret_cast<char *>(m_pbStartOfFile + cchFilemap),
INFINITE, NULL);
}
else
{
m_cChars = 0;
}
// Done counting DBCS characters
return m_cChars;
}
/* ============================================================================
CTemplate::CFileMap::GetText
From a character offset and length, return the document text
File must be mapped
*/
HRESULT CTemplate::CFileMap::GetText
(
WORD wCodePage,
ULONG cchSourceOffset,
WCHAR *pwchText,
SOURCE_TEXT_ATTR *pTextAttr,
ULONG *pcChars,
ULONG cMaxChars
)
{
ULONG cCharsCopied;
if (pcChars == NULL)
pcChars = &cCharsCopied;
// Map the file (temporarily) if not mapped
BOOL fRemapFile = !FIsMapped();
TRY
RemapFile();
CATCH (dwException)
return E_FAIL;
END_TRY
/* Find the byte offset closest to cchSourceOffset. This will be
* the place where we start looping with CharNext() to get the full
* byte offset.
*/
COffsetInfo *pOffsetInfoLE = NULL, OffsetInfoT;
/*
* NOTE: compilation is done in two phases.
* Errors are detected and reported in phase 1.
* The DBCS mapping is created in phase 2.
*
* If an error occurred during compilation, the DBCS table does not exist.
* If there is no DBCS mapping table, then pretend like we found entry with
* nearest offset == 0. (unless this is SBCS in which case nearest
* offset == cchSourceOffset)
*/
if (m_rgByte2DBCS.length() == 0)
{
CPINFO CpInfo;
GetCPInfo(wCodePage, &CpInfo);
OffsetInfoT.m_cbOffset = OffsetInfoT.m_cchOffset = (CpInfo.MaxCharSize == 1)? cchSourceOffset : 0;
pOffsetInfoLE = &OffsetInfoT;
}
else
GetBracketingPair(
cchSourceOffset, // value to search for
m_rgByte2DBCS.begin(), // beginning of array to search
m_rgByte2DBCS.end(), // end of array
CCharOffsetOrder(), // order by character offsets
&pOffsetInfoLE, // desired offset
static_cast<COffsetInfo **>(NULL) // don't care
);
/* OK - pOffsetLE->cbOffset contains the closest offset not exceeding
* cchSourceOffset. Iterate over the remainder of the characters
* to convert the cch to a cb. It had better exist!
*/
Assert (pOffsetInfoLE != NULL);
// Advance over remaining characters
char *pchStart;
CharAdvDBCS(wCodePage,
reinterpret_cast<char *>(m_pbStartOfFile + pOffsetInfoLE->m_cbOffset),
reinterpret_cast<char *>(m_pbStartOfFile + GetSize()),
cchSourceOffset - pOffsetInfoLE->m_cchOffset,
&pchStart
);
// Compute # of Characters to copy
Assert (m_cChars >= cchSourceOffset);
*pcChars = min(cMaxChars, m_cChars - cchSourceOffset);
// Compute # of Bytes to copy
char *pchEnd;
CharAdvDBCS(wCodePage,
pchStart,
reinterpret_cast<char *>(m_pbStartOfFile + GetSize()),
*pcChars,
&pchEnd
);
if (pwchText)
MultiByteToWideChar(
(WORD)wCodePage,
0,
pchStart,
DIFF(pchEnd - pchStart),
pwchText,
cMaxChars
);
// We don't support syntax coloring, so set all the character attributes to
// default color (black)
if (pTextAttr)
memset(pTextAttr, 0, *pcChars);
// Unmap the file (but only if we previously remapped it)
if (fRemapFile)
TRY
UnmapFile();
CATCH (dwException)
return E_FAIL;
END_TRY
return S_OK;
}
/* ****************************************************************************
CTemplate::CTokenList member functions
*/
/* ============================================================================
CTemplate::CTokenList::Init
Populates token list with tokens
Returns
Nothing
Side effects
None
*/
void
CTemplate::CTokenList::Init
(
)
{
// Init tokens buffer for local storage
m_bufTokens.Init(tkncAll, CB_TOKENS_DEFAULT);
// append tokens to buffer
// NOTE *** TOKENS MUST BE IN SAME ORDER AS ENUM TYPE VALUES ***
// NOTE 'superset' token must precede 'subset' token (e.g. <!--#INCLUDE before <!--)
AppendToken(tknOpenPrimaryScript, "<%");
AppendToken(tknOpenTaggedScript, "<SCRIPT");
AppendToken(tknOpenObject, "<OBJECT");
AppendToken(tknOpenHTMLComment, "<!--");
AppendToken(tknNewLine, SZ_NEWLINE);
AppendToken(tknClosePrimaryScript, "%>");
AppendToken(tknCloseTaggedScript, "</SCRIPT>");
AppendToken(tknCloseObject, "</OBJECT>");
AppendToken(tknCloseHTMLComment, "-->");
AppendToken(tknEscapedClosePrimaryScript, "%\\>");
AppendToken(tknCloseTag, ">");
AppendToken(tknCommandINCLUDE, "#INCLUDE");
AppendToken(tknTagRunat, "RUNAT");
AppendToken(tknTagLanguage, "LANGUAGE");
AppendToken(tknTagCodePage, "CODEPAGE");
AppendToken(tknTagCodePage, "LCID");
AppendToken(tknTagTransacted, "TRANSACTION");
AppendToken(tknTagSession, "ENABLESESSIONSTATE");
AppendToken(tknTagID, "ID");
AppendToken(tknTagClassID, "CLASSID");
AppendToken(tknTagProgID, "PROGID");
AppendToken(tknTagScope, "SCOPE");
AppendToken(tknTagVirtual, "VIRTUAL");
AppendToken(tknTagFile, "FILE");
AppendToken(tknTagMETADATA, "METADATA");
// AppendToken(tknTagSetPriScriptLang, "@");
AppendToken(tknTagName, "NAME");
AppendToken(tknValueTypeLib, "TYPELIB");
AppendToken(tknTagType, "TYPE");
AppendToken(tknTagUUID, "UUID");
AppendToken(tknTagVersion, "VERSION");
AppendToken(tknTagStartspan, "STARTSPAN");
AppendToken(tknTagEndspan, "ENDSPAN");
AppendToken(tknValueCookie, "COOKIE");
AppendToken(tknTagSrc, "SRC");
AppendToken(tknValueServer, "Server");
AppendToken(tknValueApplication, "Application");
AppendToken(tknValueSession, "Session");
AppendToken(tknValuePage, "Page");
AppendToken(tknVBSCommentSQuote, "'");
AppendToken(tknVBSCommentRem, "REM "); // NOTE ends with space character
AppendToken(tknTagFPBot, "webbot");
AppendToken(tknEOF, "");
AppendToken(tkncAll, "");
}
/* ============================================================================
CTemplate::CTokenList::AppendToken
Appends a string to tokens buffer
NOTE we keep the unused tkn parameter because it enforces consistency and
readability in CTemplate::CTokenList::Init(), e.g.
AppendToken(tknOpenPrimaryScript, "<%");
rather than
AppendToken("<%");
Returns:
Nothing
Side effects:
None
*/
void
CTemplate::CTokenList::AppendToken
(
_TOKEN tkn, // token value
char* sz // token string
)
{
// construct byte range from token string
CByteRange br;
br.m_pb = (BYTE*) sz;
br.m_cb = strlen(sz);
// append to tokens buffer as local string
m_bufTokens.Append(br, TRUE, 0, NULL, TRUE);
}
/* ============================================================================
CTemplate::CTokenList::NextOpenToken
Returns value of next open token in search range
Returns
token value of next open token in search range; ptr to ptr to open token (out-parameter)
Side effects
None
*/
_TOKEN
CTemplate::CTokenList::NextOpenToken
(
CByteRange& brSearch, // search byte range
TOKEN* rgtknOpeners, // array of permitted open tokens
UINT ctknOpeners, // count of permitted open tokens
BYTE** ppbToken, // ptr to ptr to open token (out-parameter)
LONG lCodePage
)
{
BYTE* pbTemp = NULL; // temp pointer
_TOKEN tkn = tknEOF; // return value
USHORT i; // loop index
// Init caller's token ptr to null
*ppbToken = NULL;
// If input is empty, return
if (brSearch.IsNull())
return tkn;
// Prepare array of LPSTR pointers to tokens.
// Do it here once, because to get LPSTR is not free.
LPSTR rgszTokens[TOKEN_OPENERS_MAX];
UINT rgcchTokens[TOKEN_OPENERS_MAX];
Assert(ctknOpeners <= TOKEN_OPENERS_MAX);
for (i = 0; i < ctknOpeners; i++)
{
LPSTR pszStr = m_bufTokens.PszLocal((UINT)(rgtknOpeners[i]));
rgszTokens[i] = pszStr;
rgcchTokens[i] = (pszStr != NULL) ? strlen(pszStr) : 0;
}
// Call a method to find one of the strings in the range
UINT idToken;
pbTemp = brSearch.PbOneOfAspOpenerStringTokens(
rgszTokens, rgcchTokens, ctknOpeners, &idToken);
if (pbTemp != NULL)
{
*ppbToken = pbTemp;
tkn = rgtknOpeners[idToken];
}
// If we found no open token, position token pointer at end of search range
if (tkn == tknEOF)
*ppbToken = brSearch.m_pb + brSearch.m_cb;
return tkn;
}
/* ============================================================================
CTemplate::CTokenList::MovePastToken
Moves a byte range past a token contained within it
*/
void
CTemplate::CTokenList::MovePastToken
(
_TOKEN tkn,
BYTE* pbToken,
CByteRange& brSearch
)
{
Assert(pbToken >= brSearch.m_pb);
Assert(brSearch.m_cb >= (DIFF(pbToken - brSearch.m_pb) + CCH_TOKEN_X(tkn)));
brSearch.Advance(DIFF(pbToken - brSearch.m_pb) + CCH_TOKEN_X(tkn));
}
/* ============================================================================
CTemplate::CTokenList::GetToken
Gets the next occurrence of a token within a byte range.
Returns:
ptr to token
Side effects
none
*/
BYTE*
CTemplate::CTokenList::GetToken
(
TOKEN tkn,
CByteRange& brSearch,
LONG lCodePage
)
{
return brSearch.PbString(m_bufTokens.PszLocal((UINT)tkn), lCodePage);
}
/* ============================================================================
The Big Three for CTemplateConnPt
NOTES:
Since this interface is embedded in CTemplate,
AddRef() and Release() delegate to the container object (because that
is the CTemplate pointer)
*/
HRESULT
CTemplateConnPt::QueryInterface(const GUID &uidInterface, void **ppvObj)
{
if (uidInterface == IID_IUnknown || uidInterface == IID_IConnectionPoint)
{
*ppvObj = this;
AddRef();
return S_OK;
}
else
{
*ppvObj = NULL;
return E_NOINTERFACE;
}
}
ULONG
CTemplateConnPt::AddRef()
{
return m_pUnkContainer->AddRef();
}
ULONG
CTemplateConnPt::Release()
{
return m_pUnkContainer->Release();
}
/* ============================================================================
Constructor for CDocNode
*/
CTemplate::CDocNodeElem::CDocNodeElem(CAppln *pAppln, IDebugApplicationNode *pDocRoot)
{
Assert (pAppln != NULL);
Assert (pDocRoot != NULL);
(m_pAppln = pAppln)->AddRef();
(m_pDocRoot = pDocRoot)->AddRef();
}
/* ============================================================================
Destructor for CDocNode
*/
CTemplate::CDocNodeElem::~CDocNodeElem()
{
m_pAppln->Release();
DestroyDocumentTree(m_pDocRoot);
}
/* ============================================================================
CTemplate::fIsLangVBScriptOrJScript(USHORT idEngine)
This function returns T/F to determine if the requested script engine
is VBScript or JScript. This function is used as an indicator to determin
if spaces need to be preserved for non MS Scripting languages
There is an assumption here that the GUIDs for VBScript and JScript will not change
Inputs
Index to a script engine
Returns
BOOL
*/
BOOLB CTemplate::FIsLangVBScriptOrJScript(USHORT idEngine)
{
// {b54f3741-5b07-11cf-a4b0-00aa004a55e8} VBScript
static const GUID uid_VBScript = {0xb54f3741, 0x5b07, 0x11cf, {0xa4, 0xb0, 0x00, 0xaa, 0x00, 0x4a, 0x55, 0xe8}};
// {f414c260-6ac0-11cf-b6d1-00aa00bbbb58} JavaScript
static const GUID uid_JScript = {0xf414c260, 0x6ac0, 0x11cf, {0xb6, 0xd1, 0x00, 0xaa, 0x00, 0xbb, 0xbb, 0x58}};
// {b54f3743-5b07-11cf-a4b0-00aa004a55e8} VBScript.Encode
static const GUID uid_VBScriptEncode = {0xb54f3743, 0x5b07, 0x11cf, {0xa4, 0xb0, 0x00, 0xaa, 0x00, 0x4a, 0x55, 0xe8}};
// {f414c262-6ac0-11cf-b6d1-00aa00bbbb58} JavaScript.Encode
static const GUID uid_JScriptEncode = {0xf414c262, 0x6ac0, 0x11cf, {0xb6, 0xd1, 0x00, 0xaa, 0x00, 0xbb, 0xbb, 0x58}};
GUID &uidLang = m_pWorkStore->m_ScriptStore.m_rgProgLangId[idEngine];
return
uidLang == uid_VBScript || uidLang == uid_VBScriptEncode ||
uidLang == uid_JScript || uidLang == uid_JScriptEncode;
}
SIZE_T
_RoundUp(
SIZE_T dwBytes)
{
#if 1
// 16KB <= dwBytes? Round up to next multiple of 4KB
if (16*1024 <= dwBytes)
dwBytes = ((dwBytes + (1<<12) - 1) >> 12) << 12;
// 4KB <= dwBytes < 16KB? Round up to next multiple of 1KB
else if (4*1024 <= dwBytes)
dwBytes = ((dwBytes + (1<<10) - 1) >> 10) << 10;
// 1KB <= dwBytes < 4KB? Round up to next multiple of 256 bytes
else if (1024 <= dwBytes)
dwBytes = ((dwBytes + (1<<8) - 1) >> 8) << 8;
// dwBytes < 1KB? Round up to next multiple of 32 bytes
else
dwBytes = ((dwBytes + (1<<5) - 1) >> 5) << 5;
#endif
return dwBytes;
}
void*
CTemplate::SmallMalloc(SIZE_T dwBytes)
{
DBG_ASSERT(sm_hSmallHeap != NULL);
dwBytes = _RoundUp(dwBytes);
return ::HeapAlloc(sm_hSmallHeap, 0, dwBytes);
}
void*
CTemplate::SmallReAlloc(void* pvMem, SIZE_T dwBytes)
{
DBG_ASSERT(sm_hSmallHeap != NULL);
dwBytes = _RoundUp(dwBytes);
return ::HeapReAlloc(sm_hSmallHeap, 0, pvMem, dwBytes);
}
void
CTemplate::SmallFree(void* pvMem)
{
DBG_ASSERT(sm_hSmallHeap != NULL);
::HeapFree(sm_hSmallHeap, 0, pvMem);
}
void*
CTemplate::LargeMalloc(SIZE_T dwBytes)
{
DBG_ASSERT(sm_hLargeHeap != NULL);
dwBytes = _RoundUp(dwBytes);
return ::HeapAlloc(sm_hLargeHeap, 0, dwBytes);
}
void*
CTemplate::LargeReAlloc(void* pvMem, SIZE_T dwBytes)
{
DBG_ASSERT(sm_hLargeHeap != NULL);
dwBytes = _RoundUp(dwBytes);
return ::HeapReAlloc(sm_hLargeHeap, 0, pvMem, dwBytes);
}
void
CTemplate::LargeFree(void* pvMem)
{
DBG_ASSERT(sm_hLargeHeap != NULL);
::HeapFree(sm_hLargeHeap, 0, pvMem);
}
// WriteTemplate Class.
/* ============================================================================
CTemplate::CWriteTemplate::CWriteTemplate
Constructor for WriteTemplate
Side effects
none
*/
CTemplate::CWriteTemplate::CWriteTemplate () :
m_pworkStore(NULL),
m_cbMemRequired (0L),
m_pTemplate(NULL),
m_fWriteScript(FALSE),
m_fCalcLineNumber(TRUE),
m_pbHeader(NULL)
{
}
/* ============================================================================
CTemplate::CWriteTemplate::~CWriteTemplate
Destructor for WriteTemplate.
Side effects
none
*/
CTemplate::CWriteTemplate::~CWriteTemplate ()
{
if (m_pbHeader)
{
// Dont free up m_pbHeader..Rather let CTemplate free it up during its cleanup.
// As m_pbStart = m_pbHeader and memory has been alocated from heap.
m_pbHeader = NULL;
}
}
/* ============================================================================
CTemplate::CWriteTemplate::Init
Initializes the write Template by copying the workstore object and the pointer to the template.
Returns:
HRESULT
Side effects
none
*/
void CTemplate::CWriteTemplate::Init
(
CWorkStore* pworkStore,
CTemplate* pTemplate,
BOOL fCalcLineNumber
)
{
//Store pointers to the workstore and template and metabase flag for line number calculation.
m_pworkStore = pworkStore;
m_pTemplate = pTemplate;
m_fCalcLineNumber = fCalcLineNumber;
// Get CodePage Information
if (!GetCPInfo(pTemplate->m_wCodePage, &m_codePageInfo))
{
// Cant GetCPInfo? Set the codePage such that the call to MultiByteToWideChar is forced.
m_codePageInfo.MaxCharSize = 0; // This will fail (MaxCharSize == 1)
}
}
/* ============================================================================
CTemplate::CWriteTemplate::WriteTemplate
Control routine that calls EstimateMemory and then write script/HTML/object blocks to template memory.
Returns:
HRESULT
Side effects
none
*/
void CTemplate::CWriteTemplate::WriteTemplate ()
{
m_fWriteScript = FALSE; // Set state to ESTIMATE
WriteTemplateComponents();
// Write the blocks into template memory
m_fWriteScript = TRUE; // Set state to WRITE
WriteTemplateComponents();
// This assert is no longer holds as the trailing comment could send this for a spin while it is valid.
// Assert (m_cbMemRequired == m_pTemplate->m_cbTemplate);
Assert (m_cbMemRequired >= m_pTemplate->m_cbTemplate);
}
/* ============================================================================
CTemplate::CWriteTemplate::WriteTemplateComponents
Runs thru the workstore object the second time.. this time telling routines to write to the template
memory and not just calculate the memory required.
Writes the template out to a contiguous block of memory.
Returns:
nothing
Side effects:
Allocates memory. Its CTemplate's responsibility to free it when it done with it.
HERE IS HOW IT WORKS
--------------------
- an 'offset' is the count of bytes from start-of-template to a location
within template memory
- at the start of the template are 3 USHORTs, the counts of script blocks,
object-infos and HTML blocks, respectively
- next are 4 ULONGs, each an offset to a block of offsets; in order, these are:
offset-to-offset to first script engine name
offset-to-offset to first script block (the script text itself)
offset-to-offset to first object-info
offset-to-offset to first HTML block
- next are a variable number of ULONGs, each an offset to a particular
template component. In order these ULONGs are:
Offsets to Count of offsets
---------- ----------------
script engine names cScriptBlocks
script blocks cScriptBlocks
object-infos cObjectInfos
HTML blocks cHTMLBlocks
- next are the template components themselves, stored sequentially
in the following order:
script engine names
script blocks
object-infos
HTML blocks
HERE IS HOW IT LOOKS
--------------------
|--|--|--| 3 template component counts (USHORTs)
|-- --|-- --| 4 offsets to template component offsets (ULONGs)
|-- --|-- --|-- --|-- --|-- --| template component offsets (ULONGs)
|-- --| ............... |-- --|
|-- --|-- --|-- --|-- --|-- --|
| ........................... | template components
| ........................... |
| ........................... |
| ........................... |
or, mnemonically:
cS cO cH 3 template component counts (USHORTs)
offSE offSB offOb offHT 4 offsets to template component offsets (ULONGs)
|-- --|-- --|-- --|-- --|-- --| template component offsets (ULONGs)
|-- --| ............... |-- --|
|-- --|-- --|-- --|-- --|-- --|
| ........................... | template components
| ........................... |
| ........................... |
| ........................... |
*/
void CTemplate::CWriteTemplate::WriteTemplateComponents
(
)
{
USHORT i;
CByteRange brWrite;
// SourceFilename :: Only if include file.
BYTE* pbIncFilename;
ULONG cbIncFilename;
ULONG cbSourceOffset; // Offset in the Source file (FOR HTML BLOCKS)
// Block counts
USHORT cScriptBlocks = m_pworkStore->CRequiredScriptEngines (m_pTemplate->m_fGlobalAsa);
USHORT cObjectInfos = m_pworkStore->m_ObjectInfoStore.Count();
USHORT cHTMLBlocks = m_pworkStore->m_bufHTMLSegments.Count();
// Count the total blocks in the ASP file that will be written to a template.
USHORT cBlockPtrs = (2 * cScriptBlocks) + cObjectInfos + cHTMLBlocks;
// Total number of memory required for header = required header + memory for blocks in ASP file.
UINT cbRequiredHeader = (C_COUNTS_IN_HEADER * sizeof(USHORT)) + (C_OFFOFFS_IN_HEADER * sizeof(DWORD));
UINT cbRequiredBlockPtrs = cBlockPtrs * sizeof (DWORD);
// Adjust offsets.
UINT cbHeaderOffset = 0;
UINT cbOffsetToOffset = 0;
UINT cbDataOffset = cbRequiredHeader + cbRequiredBlockPtrs;
UINT *pcbDataOffset; // Pointer to the counter = Points to m_cbMemRequired during Estimation phase and cbDataOffset during write phase.
if (m_fWriteScript)
{
// Allocate space for the template (resize the header field.)
if(NULL == (m_pbHeader = (BYTE*) CTemplate::LargeMalloc(m_cbMemRequired)))
THROW(E_OUTOFMEMORY);
/* AppendSourceInfo Uses m_pbStart...So updating m_pbStart to use the same memory.
Care should be taken to allow CTemplate::~CTemplate to do the clean up. So no cleanup is
performed when the CTemplate::CWriteTemplate object is distroyed.
*/
m_pTemplate->m_pbStart = m_pbHeader;
// The following 3 DWORDs are the number of script, object and HTML blocks respectively.
// Write out basic headers
MemCopyAlign (&cbHeaderOffset, &cScriptBlocks, sizeof(USHORT), sizeof(USHORT));
MemCopyAlign (&cbHeaderOffset, &cObjectInfos, sizeof(USHORT), sizeof(USHORT));
MemCopyAlign (&cbHeaderOffset, &cHTMLBlocks, sizeof(USHORT), sizeof(USHORT));
/* The next 4 ULONGs are offsets to within the template memory to the start of script engine names block,
the start of script block, the start of object block and the start of the HTML block.
At each of these memory locations where these offsets point there will be offsets to individual
blocks (script,object,HTML).
*/
// Write out Offset pointers
UINT fillerVar = 0; // Dummy variable.. used to write 0 to memory.
cbOffsetToOffset = cbRequiredHeader;
fillerVar = cScriptBlocks ? cbOffsetToOffset : 0;
MemCopyAlign (&cbHeaderOffset, &fillerVar, sizeof(ULONG), sizeof(ULONG));
cbOffsetToOffset += cScriptBlocks * sizeof(ULONG);
fillerVar = cScriptBlocks ? cbOffsetToOffset : 0;
MemCopyAlign (&cbHeaderOffset, &fillerVar, sizeof(ULONG), sizeof(ULONG));
cbOffsetToOffset += cScriptBlocks * sizeof(ULONG);
fillerVar = cObjectInfos ? cbOffsetToOffset : 0;
MemCopyAlign (&cbHeaderOffset, &fillerVar, sizeof(ULONG), sizeof(ULONG));
cbOffsetToOffset += cObjectInfos * sizeof(ULONG);
fillerVar = cHTMLBlocks ? cbOffsetToOffset : 0;
MemCopyAlign (&cbHeaderOffset, &fillerVar, sizeof(ULONG), sizeof(ULONG));
// Start calculating the memory taken for the template while writing out the header.
// At this point cbRequiredHeader == cbHeaderOffset
// Reset cbOffsetToOffset. It will not be used after this as start of cbOffsetToOffset == cbHeaderOffset
Assert (cbHeaderOffset == cbRequiredHeader);
pcbDataOffset = &cbDataOffset;
}
else
{
m_cbMemRequired = cbRequiredHeader + cbRequiredBlockPtrs;
pcbDataOffset = &m_cbMemRequired;
}
// Write the Script Engine names.
for (i = 0;i<m_pworkStore->m_ScriptStore.CountPreliminaryEngines(); i++)
{
if (m_pworkStore->FScriptEngineRequired (i, m_pTemplate->m_fGlobalAsa))
{
m_pworkStore->m_ScriptStore.m_bufEngineNames.GetItem(i, brWrite);
if (m_fWriteScript) // Write out current pointer to the Header (OffsetOfOffsets)
MemCopyAlign (&cbHeaderOffset, pcbDataOffset, sizeof(ULONG), sizeof(ULONG));
WriteBSTRToMem (brWrite, pcbDataOffset);
// Write out the ProgLangID
MemCopyAlign (pcbDataOffset, &(m_pworkStore->m_ScriptStore.m_rgProgLangId[i]),sizeof(PROGLANG_ID),sizeof(DWORD));
}
}
// Write Scripts
USHORT idEngine = 0; // Think abt storing this in CWriteTemplate
for (i = 0;i<m_pworkStore->m_ScriptStore.CountPreliminaryEngines(); i++)
{
if (m_pworkStore->FScriptEngineRequired (i, m_pTemplate->m_fGlobalAsa))
{
// Calc memory of the script block.
WriteScriptBlocks (i, idEngine, pcbDataOffset, &cbHeaderOffset, m_pTemplate->m_fGlobalAsa);
idEngine ++;
}
}
// Write ObjectInfos
for (i=0;i<cObjectInfos;i++)
{
// Get object from workstore
m_pworkStore->m_ObjectInfoStore.m_bufObjectNames.GetItem(i, brWrite);
if (m_fWriteScript)
{
// Align cbDataOffset to the place where we will write out the Object blocks
// Alignment is required before writing the offset to header.
ByteAlignOffset (pcbDataOffset, sizeof(ULONG));
MemCopyAlign (&cbHeaderOffset, pcbDataOffset, sizeof(ULONG), sizeof(ULONG));
}
WriteBSTRToMem (brWrite, pcbDataOffset);
// Write CLSID, scope and model
MemCopyAlign(pcbDataOffset, &(m_pworkStore->m_ObjectInfoStore.m_pObjectInfos[i].m_clsid) , sizeof(CLSID), sizeof(DWORD));
MemCopyAlign(pcbDataOffset, &(m_pworkStore->m_ObjectInfoStore.m_pObjectInfos[i].m_scope) , sizeof(CompScope), sizeof(CompScope));
MemCopyAlign(pcbDataOffset, &(m_pworkStore->m_ObjectInfoStore.m_pObjectInfos[i].m_model) , sizeof(CompModel), sizeof(CompModel));
}
// Write out the the HTML BLocks
if (!m_pTemplate->m_fGlobalAsa)
for (i=0;i<cHTMLBlocks;i++)
{
m_pworkStore->m_bufHTMLSegments.GetItem(i, brWrite);
if (m_fWriteScript)
{
// Align cbDataOffset to the place where we will write out the HTML blocks
// Alignment is required before writing the offset to header.
ByteAlignOffset (pcbDataOffset, sizeof(ULONG));
MemCopyAlign (&cbHeaderOffset, pcbDataOffset, sizeof(ULONG), sizeof(ULONG));
}
WriteBSTRToMem (brWrite, pcbDataOffset);
//Source offset and include file:
cbSourceOffset = 0;
pbIncFilename = NULL;
cbIncFilename = 0;
if (brWrite.m_pfilemap)
{
// Calculate offset from filemap
CFileMap *pFileMap = (CFileMap *) brWrite.m_pfilemap;
if (pFileMap->m_pbStartOfFile) // mapped?
{
cbSourceOffset = DIFF (brWrite.m_pb - pFileMap->m_pbStartOfFile) + 1;
if (pFileMap->GetParent() != NULL && // is Include file ?
pFileMap->m_szPathInfo ) // path exists
{
pbIncFilename = (BYTE *) pFileMap->m_szPathInfo ;
cbIncFilename = _tcslen(pFileMap->m_szPathInfo) * sizeof(TCHAR);
}
}
}
// Calculate memory required to write them.
MemCopyAlign (pcbDataOffset, &cbSourceOffset ,sizeof(ULONG), 0);
MemCopyAlign (pcbDataOffset, &cbIncFilename,sizeof(ULONG), 0);
if (cbIncFilename > 0)
{
MemCopyAlign(pcbDataOffset, pbIncFilename, cbIncFilename+sizeof(TCHAR), 0);
}
}
// If this is Write Mode then update the template size counter.
if (m_fWriteScript)
m_pTemplate->m_cbTemplate = cbDataOffset;
}
/* ============================================================================
CTemplate::CWriteTemplate::WriteScriptBlocks
Writes out script block for idEngine-th script engine.
NOTE segment buffer [0] contains primary script segments
segment buffer [1] contains tagged script segments of default engine
segment buffer [i] contains tagged script segments of (i-1)th engine, for i >= 2
During the ESTIMATE phase this routine just skims over the blocks calculating memory required. In most
cases the estimate phase will follow the exact same code path that the WRITE phase and will stop short of
actually writing to memory.
Returns:
HRESULT
Side effects
none
*/
void CTemplate::CWriteTemplate::WriteScriptBlocks
(
USHORT idEnginePrelim,
USHORT idEngine,
UINT *pcbDataOffset,
UINT *pcbOffsetToOffset,
BOOLB m_fGlobalAsa
)
{
UINT i = 0;
CByteRange brSegment; // current Script Segment
UINT cbScriptBlockOffset; // Offset to script Block write location.
UINT scriptStartBlockOffset;
USHORT iTSegBuffer = idEnginePrelim + 1; // Index of tagged segment buffer.
// Number of tagged script segements
UINT cTaggedSegments = m_pworkStore->m_ScriptStore.m_ppbufSegments[iTSegBuffer]->Count();
//Align Offset For script Block and update header. (align on ULONG)
ByteAlignOffset ((UINT*)pcbDataOffset,sizeof(ULONG));
cbScriptBlockOffset = *pcbDataOffset;
if (!m_fWriteScript)
// Calculate memory for the size of this script segment Right now assume 0 is written. Part of the design.
// 'i' used here as a filler, The code will just add sizeof (ULONG) to pcbDataOffset after aligning it if necessary
MemCopyAlign (pcbDataOffset, &i, sizeof(ULONG), sizeof(ULONG));
else
{
//Update the header to write the start of the script block.
MemCopyAlign (pcbOffsetToOffset, &cbScriptBlockOffset, sizeof(ULONG), sizeof(ULONG));
// Save the offset to where the size of the script has to be written later.
scriptStartBlockOffset = *pcbDataOffset;
// Advance Offset pointer by ULONG to make space for writing Lenght in the end.
*pcbDataOffset += sizeof(ULONG);
}
// 0 out the m_cbTargetOffsetPrevT variable which append source info uses.
m_pTemplate->m_cbTargetOffsetPrevT = 0;
// Now begin calculating the amount of memory the script segments will take. This has two parts..
// The primary script segment and the tagged script segments.
if (!m_fGlobalAsa) // This is not Global.asa
if (idEnginePrelim == 0) // This is the primary script
WritePrimaryScript(0, pcbDataOffset, cbScriptBlockOffset + sizeof(ULONG));
// Calculate memory for the tagged segments.
for (i=0;i<cTaggedSegments;i++)
{
m_pworkStore->m_ScriptStore.m_ppbufSegments[iTSegBuffer]->GetItem(i,brSegment);
WriteTaggedScript(
idEngine,
m_pTemplate->m_rgpSegmentFilemaps[brSegment.m_idSequence],
brSegment,
pcbDataOffset,
cbScriptBlockOffset + sizeof(ULONG),
FALSE
);
}
// check if the last few characters were --> and take appropriate action.
// Do this only during the write phase as this code will write to script memory.
if (m_fWriteScript)
RemoveHTMLCommentSuffix(scriptStartBlockOffset, pcbDataOffset);
// We need to write the null terminator
MemCopyAlign (pcbDataOffset, WSTR_NULL, sizeof(WCHAR), 0);
if (m_fWriteScript)
{
// Calculate size of script = difference in offsets - size of the length pointer - size of null terminator
UINT cbScript = *pcbDataOffset - scriptStartBlockOffset - sizeof (ULONG) - sizeof (WCHAR);
MemCopyAlign (&scriptStartBlockOffset, &cbScript, sizeof(ULONG), 0);
/* We need to append one extra "pseudo-line" to the end of source info's array to cover
the case where the script engine reports back an error line number which falls after the
end of the script. We always want the "pseudo-line" to point to the main file, so the
debugger displays something reasonable. We pass it m_rgpFilemaps[0] which is the main file.
We need to call this function only during the write phase and not the estimation phase.
We need to call AppendSourceInfo before the script engine executes the script.
*/
m_pTemplate->AppendSourceInfo (idEngine,
m_pTemplate->m_rgpFilemaps[0],
NULL,
UINT_MAX,
UINT_MAX,
UINT_MAX,
0, TRUE);
}
}
/* ============================================================================
CTemplate::CWriteTemplate::WritePrimaryScript
Writes (if fWriteScript is TRUE, calculates memory requirement otherwise) out default-engine primary script procedure.
If VBScript is default-engine, the primary script procedure contains
interleaved script commands and HTML block-writes, like this:
Sub Main
...
[script segment]
Response.WriteBlock([HTML block id])
...
[script segment]
Response.WriteBlock([HTML block id])
...
[script segment]
Response.WriteBlock([HTML block id])
...
End Sub
NOTE segment buffer [0] == primary script segments
This routine is called for the main script.
Returns:
nothing
Side effects
none
*/
void CTemplate::CWriteTemplate::WritePrimaryScript
(
USHORT idEngine,
UINT * pcbDataOffset,
UINT cbScriptBlockOffset
)
{
USHORT cScriptSegmentsProcessed = 0;
USHORT cHTMLBlocksProcessed = 0;
CByteRange brScriptNext;
CByteRange brHTMLNext;
char szHTMLBlockID[6];
USHORT cPrimaryScriptSegments = m_pworkStore->m_ScriptStore.m_ppbufSegments[0]->Count();
USHORT cHTMLBlocks = m_pworkStore->m_bufHTMLSegments.Count();
CFileMap * pfilemap;
// Get Initial script and HTML segments.
if (cPrimaryScriptSegments)
m_pworkStore->m_ScriptStore.m_ppbufSegments[0]->GetItem(0,brScriptNext);
if (cHTMLBlocks)
m_pworkStore->m_bufHTMLSegments.GetItem(0,brHTMLNext);
//While there are HTML or primary scripts present...
while ((cHTMLBlocksProcessed < cHTMLBlocks) || (cScriptSegmentsProcessed < cPrimaryScriptSegments))
{
//If HTML block(s) remain to be processed
if (cHTMLBlocksProcessed < cHTMLBlocks)
while (TRUE)
{
if (brHTMLNext.FEarlierInSourceThan(brScriptNext) || (cScriptSegmentsProcessed >= cPrimaryScriptSegments))
{
//append source-info for the target script line we just manufactured.
pfilemap = m_pTemplate->m_rgpSegmentFilemaps[brHTMLNext.m_idSequence];
// We can call Append Source info here as it does not write any information to the template
// rather it reads information from the workstore/scriptstore and appends the source info to
// the workstore. Provided this function is called just once. we call it during the WRITE phase
if (m_fWriteScript)
{
m_pTemplate->AppendSourceInfo ( idEngine,
pfilemap, // Filemap
NULL, // Dont do linenumber calculation
DIFF(brHTMLNext.m_pb - pfilemap->m_pbStartOfFile), // offset of line in source
cbScriptBlockOffset, // ptr to start of scripts
(*pcbDataOffset - cbScriptBlockOffset)/sizeof(WCHAR), // line in target file
CharAdvDBCS ((WORD) m_pTemplate->m_wCodePage,
reinterpret_cast <char *> (brHTMLNext.m_pb),
reinterpret_cast <char *> (brHTMLNext.m_pb + brHTMLNext.m_cb),
INFINITE,
NULL), // Exact number of characters in source file
TRUE); // It is HTML
}
// Proceed to calculate the blocknumber and tags in the template.
// Convert blockID to string.
_itoa (cHTMLBlocksProcessed, szHTMLBlockID,10);
// Write out block opener, the block number and the block closer followed by a newline.
MemCopyWithWideChar (pcbDataOffset, m_pworkStore->m_szWriteBlockOpen, m_pworkStore->m_cchWriteBlockOpen, 0);
MemCopyWithWideChar (pcbDataOffset, szHTMLBlockID, strlen(szHTMLBlockID), 0);
MemCopyWithWideChar (pcbDataOffset, m_pworkStore->m_szWriteBlockClose, m_pworkStore->m_cchWriteBlockClose, 0);
MemCopyWithWideChar (pcbDataOffset, SZ_NEWLINE, CB_NEWLINE, 0);
if (++cHTMLBlocksProcessed >= cHTMLBlocks)
break;
//get next HTMLBlock.
m_pworkStore->m_bufHTMLSegments.GetItem (cHTMLBlocksProcessed,brHTMLNext);
}
else
break;
}
//if primary Script Segment remains to be processed;
if (cScriptSegmentsProcessed < cPrimaryScriptSegments)
while (TRUE)
{
// Write out each primary script segment earlier in the source file than the next HTML block
if (brScriptNext.FEarlierInSourceThan(brHTMLNext) || (cHTMLBlocksProcessed >= cHTMLBlocks))
{
WriteTaggedScript ( idEngine,
m_pTemplate->m_rgpSegmentFilemaps[brScriptNext.m_idSequence],
brScriptNext,
pcbDataOffset,
cbScriptBlockOffset,
TRUE);
if (++cScriptSegmentsProcessed >= cPrimaryScriptSegments)
break;
// Get next script Segment
m_pworkStore->m_ScriptStore.m_ppbufSegments[0]->GetItem(cScriptSegmentsProcessed, brScriptNext);
}
else
break;
}
}
}
/* ============================================================================
CTemplate::CTemplate::WriteTaggedScript
Writes a script segment to template memory line-by-line if fWriteScript is TRUE else just calculates memory
its memory requirement.
This routine could be called for both <SCRIPT> </SCRIPT> blocks and <% and %> blocks
Returns:
nothing
Side effects
none
*/
void CTemplate::CWriteTemplate::WriteTaggedScript
(
USHORT idEngine,
CFileMap* pfilemap,
CByteRange brScript,
UINT* pcbDataOffset,
UINT cbScriptBlockOffset,
BOOL fAllowExprWrite
)
{
CByteRange brLine;
UINT cbPtrOffset = 0;
BOOL fExpression = FALSE;
BOOL fFirstLine = TRUE;
// Metabase setting (m_fCalcLineNumber) will override if it is set to FALSE else it will have no effect.
BOOL fCalcLineNumber = m_fCalcLineNumber; // should line number be calculated.
if (FByteRangeIsWhiteSpace(brScript))
return;
// Trim white space from begining of script segment
if (m_pTemplate->FIsLangVBScriptOrJScript (idEngine))
LTrimWhiteSpace (brScript);
while (!(brScript.IsNull()))
{
//fetch next line from byte range until brScript is NULL
LineFromByteRangeAdv (brScript, brLine);
if (FByteRangeIsWhiteSpace (brLine))
{
fCalcLineNumber = m_fCalcLineNumber ; // if m_fCalcLineNumber is set to true then fCalcLineNumber is true else
// just m_fCalcLineNumber will just mask of fCalcLineNumber to FALSE
continue;
}
// If the line is not blank..trim the white spaces.
if (m_pTemplate->FIsLangVBScriptOrJScript (idEngine))
LTrimWhiteSpace (brLine);
RTrimWhiteSpace (brLine);
/* We need to call AppendSourceInfo so that the script engine has a corelation
with the line number..and other source information such as which file the script belongs to.
If the line number flag is not NULL then AppendSourceInfo will force recalculation of the
line numbers. If however it is NULL then AppendSourceInfo just appends 1 to the current line number
without calling into the Line number calculation routine.
All AppendSourceInfo calls are made only during the WRITE phase.
NOTE: AppendSourceInfo will always take the NULL as a parameter if m_fCalcLineNumber is set to FALSE
*/
if (m_fWriteScript)
{
m_pTemplate->AppendSourceInfo ( idEngine,
pfilemap,
fCalcLineNumber ? brLine.m_pb : NULL,
DIFF (brLine.m_pb - pfilemap->m_pbStartOfFile),
cbScriptBlockOffset,
(*pcbDataOffset - cbScriptBlockOffset)/sizeof(WCHAR),
CharAdvDBCS ((WORD) m_pTemplate->m_wCodePage,
reinterpret_cast <char *> (brLine.m_pb),
reinterpret_cast <char *> (brLine.m_pb + brLine.m_cb),
INFINITE, NULL),
FALSE);
}
/* fCalcLineNumber is set to TRUE if the parser hits a blank line or an close token.
It instructs the Append source info to begin line number calculation from the start.
Setting it to FALSE will just tell it to ignore recalculation of the line number and it
just appends 1 to previous line number to get the current count.
On return from AppendSourceInfo..we just reset the line number calculation flag.
*/
fCalcLineNumber = FALSE;
if (fAllowExprWrite && fFirstLine)
{
// Test for remainder of script segment null on temp copy of script byte range, not on actual
CByteRange brTemp = brScript;
LTrimWhiteSpace (brTemp);
if (brTemp.IsNull())
{
/* if (a) expr-write is allowed AND (b) this is only script line in this segment (first and remainder
is NULL. then test this line to see if it is an expression.
if this like is an expression, create a script command that reads
Response.Write([line contents])
*/
if (fExpression = m_pTemplate->FExpression (brLine))
{
MemCopyWithWideChar (pcbDataOffset, m_pworkStore->m_szWriteOpen,
m_pworkStore->m_cchWriteOpen, 0);
}
brScript = brTemp;
}
}
// write out line contents
ScriptMemoryMinusEscapeChars(brLine, pcbDataOffset, cbPtrOffset);
// If this line is an expression, close script command.
if (fExpression)
MemCopyWithWideChar (pcbDataOffset, m_pworkStore->m_szWriteClose,
m_pworkStore->m_cchWriteClose, 0);
// Write NEW_LINE and set first line flag to false.
MemCopyWithWideChar (pcbDataOffset, SZ_NEWLINE, CB_NEWLINE, 0);
fFirstLine = FALSE;
}
}
/* ============================================================================
CTemplate::CWriteTemplate::ScriptMemoryMinusEscapeChars
if fWriteWideCharStr is FALSE it calculates a script byte range to memory requirement, minus its escape characters, if any.
if fWriteWideCharStr is TRUE it Writes a script byte range to memory, minus its escape characters, if any.
Returns:
nothing
Side effects
none
*/
void CTemplate::CWriteTemplate::ScriptMemoryMinusEscapeChars
(
CByteRange brScript,
UINT *pcbDataOffset,
UINT cbPtrOffset
)
{
BYTE * pbToken;
while (NULL != (pbToken = gm_pTokenList->GetToken (CTokenList::tknEscapedClosePrimaryScript, brScript,
m_pTemplate->m_wCodePage)))
{
CByteRange brTemp = brScript;
// Set temp range to source range up to escaped-token
brTemp.m_cb = DIFF (pbToken - brTemp.m_pb);
// WriteByteRangeAdv with no BSTR = MemCopyWithWideChar
// Write out temp range and actual-token - this replaces escaped-token with actual-token.
MemCopyWithWideChar (pcbDataOffset, brTemp.m_pb, brTemp.m_cb, 0);
MemCopyWithWideChar (pcbDataOffset, SZ_TOKEN(CTokenList::tknClosePrimaryScript), CCH_TOKEN(CTokenList::tknClosePrimaryScript), 0);
//Advance source range past escaped token
brScript.Advance (DIFF(pbToken - brScript.m_pb) + CCH_TOKEN(CTokenList::tknEscapedClosePrimaryScript));
}
// write remainder of source range.
MemCopyWithWideChar (pcbDataOffset, brScript.m_pb, brScript.m_cb, 0);
}
/* ============================================================================
CTemplate::CWriteTemplate::CalcMemoryAndUpdateHeader
Calculate the memory required to write a BSTR into template memory
Returns:
nothing
Side effects
none
*/
void CTemplate::CWriteTemplate::WriteBSTRToMem
(
CByteRange & brWrite,
UINT *pcbOffset
)
{
MemCopyAlign (pcbOffset, &brWrite.m_cb, sizeof(ULONG), sizeof(ULONG)); // Length of BSTR
MemCopyAlign (pcbOffset, brWrite.m_pb, brWrite.m_cb, 0); // the BSTR itself.
MemCopyAlign (pcbOffset, SZ_NULL, 1, 0); // Teminating NULL
}
/* ============================================================================
CTemplate::CWriteTemplate::MemCopyAlign
Writes to target/calculates memory required after adjusting byte alignment if necessary.
Returns:
nothing
Side effects
none
*/
void CTemplate::CWriteTemplate::MemCopyAlign
(
UINT *pcbOffset,
void *pbSource,
ULONG cbSource,
UINT cbByteAlign
)
{
// If byte alignment is necessary then align.
if (cbByteAlign > 0)
ByteAlignOffset (pcbOffset, cbByteAlign);
// Copy memory if in WRITE phase and adjust offset else just adjust offset.
if (m_fWriteScript)
memcpy(m_pbHeader + *pcbOffset,pbSource,cbSource);
*pcbOffset += cbSource;
}
/* ============================================================================
CTemplate::CWriteTemplate::MemCopyEstimateWithWideChar
If the m_fWriteScript flag is FALSE then this routine calculates the memory that will be required when
the source in converted into WideChar and stored. If the m_fWriteScript flag is TRUE then the routine
copies the wide string into Template memory.
Parameters:
pcbOffset : pointer to offset where data will be written
pbSource : pointer to the source string
cbSource : count of bytes in source.
cbByteAlign : what boundry should pcbOffset be aligned on 0, 1, 2, 4
Returns:
nothing
Side effects
none
*/
void CTemplate::CWriteTemplate::MemCopyWithWideChar
(
UINT *pcbOffset,
void *pbSource,
ULONG cbSource,
UINT cbByteAlign
)
{
ULONG cchWstr;
// If byte alignment is necessary then align.
Assert(cbSource);
if (cbByteAlign > 0)
ByteAlignOffset ((UINT *)pcbOffset, cbByteAlign);
/* If this is the estimation phase and the code page MaxCharSize is 1 (ASCII) then we just make the
calculate cbWstr to be cbSource (WideChars). This is to reduce the overhead of calling into
MultiByteToWideChar. If this is the write phase then it calls MultiByteToWideChar.
*/
if (!m_fWriteScript)
{
if (m_codePageInfo.MaxCharSize == 1)
cchWstr = cbSource; // cbWstr is in wide chars.
else
cchWstr = MultiByteToWideChar (m_pTemplate->m_wCodePage, 0, (LPCSTR)pbSource, cbSource, NULL, 0);
}
else
{
cchWstr = MultiByteToWideChar (m_pTemplate->m_wCodePage, 0, (LPCSTR)pbSource, cbSource,(LPWSTR) (m_pbHeader + *pcbOffset), m_cbMemRequired - *pcbOffset);
Assert(FImplies ((m_codePageInfo.MaxCharSize == 1), (cchWstr == cbSource)));
}
// Adjust offset.
if (cchWstr)
*pcbOffset += cchWstr *2;
}
/* ============================================================================
CTemplate::CWriteTemplate::RemoveHTMLCommentSuffix
Strip of a HTML comment within script blocks
Parameters:
Returns:
nothing
Side effects
strips trailing HTML comments from the Script.
IMPORTANT:
This function is similar to the one in VBSCRIPT scripting engine. The only difference is that
the scripting team places a \0 at the end of the script because they parse the scripts independently.
By doing the same thing we will inadvertently be terminating the script at the first point we
notice a --> followed by a %> or a </SCRIPT>. We have two alternatives
(a) Overwrite the entire comment with a space.
Effects: Error Reporting will miss information
(b) Modify the pointer in the template to place the pbCurrentOffset to the start of the Comment block.
Effects: Yet to learn. Probarbly affect Line Number calculation
Another Side Effect = We will be allocating more memory than we need (memory pertaining to the comment).
*/
void CTemplate::CWriteTemplate::RemoveHTMLCommentSuffix
(
UINT cbStartOffset,
UINT *pcbCurrentOffset
)
{
UINT cbTempDataOffset = *pcbCurrentOffset;
UINT len = (*pcbCurrentOffset -cbStartOffset)/sizeof(WCHAR);
WCHAR * pwszSrc = (WCHAR*) (m_pTemplate->m_pbStart + cbStartOffset);
while (len > 3 && FWhiteSpaceEx(pwszSrc[len]))
{
len --;
cbTempDataOffset -= sizeof (WCHAR);
}
if (len < 3 || (WCHAR) L'>' != (WCHAR) pwszSrc[len--]
|| (WCHAR) L'-' != pwszSrc[len--]|| (WCHAR) L'-' != pwszSrc[len--])
return ;
// Saw a -->delimiter
// Now run back until there is an EOL , a // or a <!--
// Also there were 3 decrements of len which went unnoticed. Take them into account.
cbTempDataOffset -= (3 * sizeof(WCHAR));
while (len > 0)
{
if ((WCHAR) L'\n' == pwszSrc[len] || (WCHAR) L'\r' == pwszSrc[len])
{
len ++; // arrange for the character following the EOL to be overwritten with a 0
cbTempDataOffset += sizeof (WCHAR);
break;
}
if (len >= 1 && (WCHAR) L'/' == pwszSrc[len-1] && (WCHAR)L'/' == pwszSrc[len])
{
len --; // arrange for the first // to be overwritten with a 0
cbTempDataOffset -= sizeof (WCHAR);
break;
}
if (len >= 3 && (WCHAR) L'<' == pwszSrc[len -3] && (WCHAR) L'!' == pwszSrc[len -2]
&&(WCHAR) L'-' == pwszSrc[len -1] && (WCHAR) L'-' == pwszSrc[len])
{
len -=3; // arrange for the first < to be over written by the 0
cbTempDataOffset -= (3* sizeof (WCHAR));
break;
}
len --;
cbTempDataOffset -= sizeof(WCHAR);
}
// We should add a \r\n to keep the line number calculation truthful.
MemCopyAlign(&cbTempDataOffset, WSZ_NEWLINE, CB_NEWLINE * sizeof(WCHAR));
//Set start of comment as currentDataOffset
*pcbCurrentOffset = cbTempDataOffset;
return ;
}