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windows-xp/Source/XPSP1/NT/shell/ext/webcheck/downld.cpp

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#include "private.h"
#include <exdisp.h>
#include <exdispid.h>
#include <htiface.h>
#include <mshtmdid.h>
#include <mshtmcid.h>
#include <mshtmhst.h>
#include <optary.h> // needed for IHtmlLoadOptions
#include "downld.h"
#define TF_THISMODULE TF_DOWNLD
// CUrlDownload is a single threaded object. We can assume we are always on a single thread.
long g_lRegisteredWnd = 0;
LRESULT UrlDownloadWndProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam);
CLIPFORMAT g_cfHTML=CF_NULL;
// User-Agent strings
const WCHAR c_wszUserAgentAppend[] = L"; MSIECrawler)";
// Refresh header for http-equiv (client-pull)
const WCHAR c_wszRefresh[] = L"Refresh";
const int MAX_CLIENT_PULL_NUM = 4; // max # redirections
const int MAX_CLIENT_PULL_TIMEOUT = 6; // max timeout we'll follow
// Function also present in shdocvw\basesb.cpp and in mshtml
BOOL ParseRefreshContent(LPWSTR pwzContent, UINT * puiDelay, LPWSTR pwzUrlBuf, UINT cchUrlBuf);
const WCHAR c_wszHeadVerb[] = L"HEAD";
const WCHAR c_szUserAgentPrefix[] = L"User-Agent: ";
const WCHAR c_szAcceptLanguagePrefix[] = L"Accept-Language: ";
#define WM_URLDL_CLEAN (WM_USER + 0x1010)
#define WM_URLDL_ONDLCOMPLETE (WM_USER + 0x1012)
#define WM_URLDL_CLIENTPULL (WM_USER+0x1013)
#define SAFE_RELEASE_BSC() \
if (m_pCbsc) { \
m_pCbsc->SetParent(NULL); \
m_pCbsc->Release(); \
m_pCbsc = NULL; \
} else
//---------------------------------------------------------------
// CUrlDownload class
CUrlDownload::CUrlDownload(CUrlDownloadSink *pParent, UINT iID /* =0 */)
{
DWORD cbData;
// Maintain global count of objects
DllAddRef();
m_iID = iID;
m_pParent = pParent;
m_cRef = 1;
ASSERT(m_pDocument==NULL && m_dwConnectionCookie==0 && m_pwszURL == NULL);
// Get the timeout value (stored in seconds)
cbData = sizeof(m_nTimeout);
if (NO_ERROR != SHGetValue(HKEY_CURRENT_USER, c_szRegKey, TEXT("Timeout"), NULL, &m_nTimeout, &cbData))
{
// Default to 120 seconds
m_nTimeout = 120;
}
// find the HTML clipboard format
if (!g_cfHTML)
{
g_cfHTML = (CLIPFORMAT) RegisterClipboardFormat(CFSTR_MIME_HTML);
TraceMsg(TF_THISMODULE, "ClipFormat for HTML = %d", (int)g_cfHTML);
}
// find out if we need to set the "RESYNCHRONIZE" flag
INTERNET_CACHE_CONFIG_INFOA CacheConfigInfo;
DWORD dwBufSize = sizeof(CacheConfigInfo);
CacheConfigInfo.dwStructSize = sizeof(CacheConfigInfo);
if (GetUrlCacheConfigInfoA(&CacheConfigInfo, &dwBufSize, CACHE_CONFIG_SYNC_MODE_FC))
{
if ((WININET_SYNC_MODE_ONCE_PER_SESSION == CacheConfigInfo.dwSyncMode) ||
(WININET_SYNC_MODE_ALWAYS == CacheConfigInfo.dwSyncMode) ||
(WININET_SYNC_MODE_AUTOMATIC == CacheConfigInfo.dwSyncMode))
{
m_fSetResync = FALSE;
}
else
{
m_fSetResync = TRUE;
DBG("Browser session update='never', setting RESYNCHRONIZE");
}
}
else
DBG_WARN("GetUrlCacheConfigInfo failed! Not setting Resync.");
m_lBindFlags = DLCTL_SILENT | DLCTL_NO_SCRIPTS | DLCTL_NO_BEHAVIORS |
DLCTL_NO_JAVA | DLCTL_NO_RUNACTIVEXCTLS | DLCTL_NO_DLACTIVEXCTLS;
if (m_fSetResync)
m_lBindFlags |= DLCTL_RESYNCHRONIZE;
// register our window class if necessary
if (!g_lRegisteredWnd)
{
g_lRegisteredWnd++;
WNDCLASS wc;
wc.style = 0;
wc.lpfnWndProc = UrlDownloadWndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = g_hInst;
wc.hIcon = NULL;
wc.hCursor = NULL;
wc.hbrBackground = (HBRUSH)NULL;
wc.lpszMenuName = NULL;
wc.lpszClassName = URLDL_WNDCLASS;
RegisterClass(&wc);
}
}
CUrlDownload::~CUrlDownload()
{
// Maintain global count of objects
DllRelease();
CleanUp();
DBG("Destroyed CUrlDownload object");
}
void CUrlDownload::CleanUpBrowser()
{
SAFERELEASE(m_pScript);
if (m_fAdviseOn)
{
UnAdviseMe();
}
SAFERELEASE(m_pCP);
SAFERELEASE(m_pDocument);
SAFERELEASE(m_pPersistMk);
SAFERELEASE(m_pOleCmdTarget);
SAFELOCALFREE(m_pwszClientPullURL);
}
void CUrlDownload::CleanUp()
{
CleanUpBrowser();
SAFE_RELEASE_BSC();
SAFELOCALFREE(m_pwszURL);
SAFELOCALFREE(m_pstLastModified);
SAFERELEASE(m_pStm);
SAFELOCALFREE(m_pwszUserAgent);
if (m_hwndMe)
{
SetWindowLongPtr(m_hwndMe, GWLP_USERDATA, 0);
DestroyWindow(m_hwndMe);
m_hwndMe = NULL;
}
}
LRESULT UrlDownloadWndProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{
CUrlDownload *pThis = (CUrlDownload*) GetWindowLongPtr(hWnd, GWLP_USERDATA);
// Validate pThis
#ifdef DEBUG
if (pThis && IsBadWritePtr(pThis, sizeof(*pThis)))
{
TraceMsg(TF_THISMODULE,
"Invalid 'this' in UrlDownloadWndProc (0x%08x) - already destroyed?", pThis);
}
#endif
switch (Msg)
{
case WM_CREATE :
{
LPCREATESTRUCT pcs = (LPCREATESTRUCT)lParam;
if (!pcs || !(pcs->lpCreateParams))
{
DBG_WARN("Invalid param UrlDownloadWndProc Create");
return -1;
}
SetWindowLongPtr(hWnd, GWLP_USERDATA, (LONG_PTR) pcs->lpCreateParams);
return 0;
}
case WM_URLDL_CLIENTPULL :
case WM_URLDL_ONDLCOMPLETE :
case WM_TIMER :
if (pThis)
pThis->HandleMessage(hWnd, Msg, wParam, lParam);
break;
default:
return DefWindowProc(hWnd, Msg, wParam, lParam);
}
return 0;
}
HRESULT CUrlDownload::CreateMyWindow()
{
// Create our callback window
if (NULL == m_hwndMe)
{
// TraceMsg(TF_THISMODULE, "Creating MeWnd, this=0x%08x", (DWORD)this);
m_hwndMe = CreateWindow(URLDL_WNDCLASS, TEXT("YO"), WS_OVERLAPPED,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, g_hInst, (LPVOID)this);
if (NULL == m_hwndMe)
{
DBG_WARN("CUrlDownload CreateWindow(UrlDl WndClass) failed");
return E_FAIL;
}
}
return S_OK;
}
HRESULT CUrlDownload::BeginDownloadURL2(
LPCWSTR pwszURL, // URL
BDUMethod iMethod, // download method
BDUOptions iOptions, // download options
LPTSTR pszLocalFile, // Local file to download to instead of cache
DWORD dwMaxSize // Max size in bytes; will abort if exceeded
)
{
HRESULT hr = S_OK;
// Param validation
ASSERT(pwszURL);
ASSERT(!(iOptions & BDU2_NEEDSTREAM) || (iMethod == BDU2_URLMON));
ASSERT(!pszLocalFile || (iMethod == BDU2_URLMON));
if (pszLocalFile && iMethod != BDU2_URLMON)
{
hr = E_INVALIDARG;
}
else
{
CreateMyWindow();
// Clean up some old stuff
if (m_pCbsc)
{
if (m_fbscValid)
m_pCbsc->Abort();
SAFE_RELEASE_BSC();
}
SAFERELEASE(m_pScript);
SAFERELEASE(m_pStm);
m_fbscValid = m_fBrowserValid = FALSE;
m_iMethod = iMethod;
m_iOptions = iOptions;
m_dwMaxSize = dwMaxSize;
SAFELOCALFREE(m_pwszClientPullURL);
m_iNumClientPull = 0;
// Save URL
SAFELOCALFREE(m_pwszURL);
m_pwszURL = StrDupW(pwszURL);
SAFELOCALFREE(m_pstLastModified);
m_dwResponseCode = 0;
if ((iOptions & BDU2_FAIL_IF_NOT_HTML) && IsNonHtmlUrl(pwszURL))
{
// Hey, this isn't an HTML url! Don't even try to download it.
OnDownloadComplete(BDU2_ERROR_NOT_HTML);
}
else
{
// Determine how to download this URL
if ((iMethod == BDU2_BROWSER) ||
((iMethod == BDU2_SMART) && IsHtmlUrl(pwszURL)))
{
hr = BeginDownloadWithBrowser(pwszURL);
}
else
{
hr = BeginDownloadWithUrlMon(pwszURL, pszLocalFile, NULL);
}
}
}
if (FAILED(hr))
{
DBG("BeginDownloadURL2 : error HRESULT - calling OnDownloadComplete w/Error");
OnDownloadComplete(BDU2_ERROR_GENERAL);
}
return hr;
}
//
// Looks up the Url in the url history object and if its not CP_ACP
// inserts an IHTMLLoadOptions object that contains the codepage
// into the bind context
//
HRESULT InsertHistoricalCodepageIntoBindCtx(LPCWSTR pwszURL, IBindCtx * pbc)
{
HRESULT hr = S_OK;
if (pwszURL == NULL || pbc == NULL)
{
hr = E_INVALIDARG;
}
else
{
//
// Get the codepage from the intsite database. This is the codepage
// the user set when last visiting this url.
//
PROPVARIANT propCodepage = {0};
propCodepage.vt = VT_UI4;
TCHAR szURL[INTERNET_MAX_URL_LENGTH];
MyOleStrToStrN(szURL, INTERNET_MAX_URL_LENGTH, pwszURL);
hr = IntSiteHelper(szURL, &c_rgPropRead[PROP_CODEPAGE],
&propCodepage, 1, FALSE);
if (SUCCEEDED(hr) && propCodepage.lVal != CP_ACP)
{
//
// We got a codepage that wasn't the ansi one create an
// HTMLLoadOptions object and set the code page in it.
//
IHtmlLoadOptions *phlo = NULL;
hr = CoCreateInstance(CLSID_HTMLLoadOptions, NULL,
CLSCTX_INPROC_SERVER, IID_IHtmlLoadOptions, (void**)&phlo);
if (SUCCEEDED(hr) && phlo)
{
hr = phlo->SetOption(HTMLLOADOPTION_CODEPAGE, &propCodepage.lVal,
sizeof(propCodepage.lVal));
if (SUCCEEDED(hr))
{
//
// Insert the option into the bindctx
//
pbc->RegisterObjectParam(L"__HTMLLOADOPTIONS", phlo);
TraceMsg(TF_THISMODULE,
"InsertHistoricalCodepageIntoBindCtx codepage=%d",
propCodepage.lVal);
}
phlo->Release();
}
}
}
return hr;
}
LPCWSTR CUrlDownload::GetUserAgent()
{
if (m_pwszUserAgent)
{
return m_pwszUserAgent;
}
// Get default User-Agent string from urlmon
CHAR chUA[1024];
DWORD dwBufLen;
// Assume that UrlMkGetSessionOption always succeeds (82160).
chUA[0] = 0;
UrlMkGetSessionOption(URLMON_OPTION_USERAGENT, chUA, sizeof(chUA), &dwBufLen, 0);
// Append "MSIECrawler"
int iLenUA, iLenNew;
iLenUA = lstrlenA(chUA);
iLenNew = iLenUA + ARRAYSIZE(c_wszUserAgentAppend);
ASSERT(iLenUA == (int)(dwBufLen-1));
if (iLenUA > 0)
{
m_pwszUserAgent = (LPWSTR) LocalAlloc(LMEM_FIXED, sizeof(WCHAR)*iLenNew);
if (m_pwszUserAgent)
{
LPWSTR pwszAppend = m_pwszUserAgent+iLenUA-1;
m_pwszUserAgent[0] = L'\0';
SHAnsiToUnicode(chUA, m_pwszUserAgent, iLenNew);
// find the closing parenthesis and append string there
if (*pwszAppend != L')')
{
DBG("GetUserAgent: Last Char in UA isn't closing paren");
pwszAppend = StrRChrW(m_pwszUserAgent, m_pwszUserAgent+iLenUA, L')');
}
if (pwszAppend)
{
StrCpyW(pwszAppend, c_wszUserAgentAppend);
}
else
{
LocalFree(m_pwszUserAgent);
m_pwszUserAgent = NULL;
}
}
}
return m_pwszUserAgent;
}
HRESULT CUrlDownload::BeginDownloadWithBrowser(LPCWSTR pwszURL)
{
HRESULT hr;
// Get browser and hook up sink
// (no-op if we're already set up)
hr = GetBrowser();
if (SUCCEEDED(hr))
{
// browse to the required URL
LPMONIKER pURLMoniker = NULL;
IBindCtx *pbc = NULL;
// create a URL moniker from the canonicalized path
hr=CreateURLMoniker(NULL, pwszURL, &pURLMoniker);
if (FAILED(hr)) DBG_WARN("CreateURLMoniker failed");
// create an empty bind context so that Urlmon will call Trident's
// QueryService on the proper thread so that Trident can delegate
// it to use properly.
hr=CreateBindCtx(0, &pbc);
if (FAILED(hr)) DBG_WARN("CreateBindCtx failed");
if (SUCCEEDED(hr))
{
//
// Looks up the Url in the url history object and if its not CP_ACP
// inserts an IHTMLLoadOptions object that contains the codepage
// into the bind context. This is done so that TRIDENT is seeded
// with the correct codepage.
//
InsertHistoricalCodepageIntoBindCtx(pwszURL, pbc);
hr = m_pPersistMk->Load(FALSE, pURLMoniker, pbc, 0);
if (SUCCEEDED(hr)) m_fWaitingForReadyState = TRUE;
if (FAILED(hr)) DBG_WARN("PersistMoniker::Load failed");
}
// clean up junk
if (pURLMoniker)
pURLMoniker->Release();
if (pbc)
pbc->Release();
if (SUCCEEDED(hr))
{
m_fBrowserValid = TRUE;
StartTimer(); // Start our timeout
}
else
{
DBG("Error binding with Browser's IPersistMoniker");
CleanUpBrowser();
}
}
TraceMsg(TF_THISMODULE,
"CUrlDownload::BeginDownloadWithBrowser (hr=0x%08x)", (long)hr);
return hr;
}
HRESULT CUrlDownload::OnDownloadComplete(int iError)
{
PostMessage(m_hwndMe, WM_URLDL_ONDLCOMPLETE, (WPARAM)iError, 0);
StopTimer();
return S_OK;
}
BOOL CUrlDownload::HandleMessage(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg)
{
case WM_URLDL_CLIENTPULL :
{
HRESULT hr = E_FAIL;
// Ask our parent if we should do this
if (m_pwszClientPullURL)
{
if (m_pParent && (m_iNumClientPull < MAX_CLIENT_PULL_NUM))
hr = m_pParent->OnClientPull(m_iID, m_pwszURL, m_pwszClientPullURL);
TraceMsgA(TF_THISMODULE, "CUrlDownload %s executing client pull to %ws",
SUCCEEDED(hr) ? "is" : "**not**", m_pwszClientPullURL);
}
if (SUCCEEDED(hr))
{
// Download this new url. Don't give "downloadcomplete" for first one
// Save member vars since they get reset in BDU2
int iNumClientPull = m_iNumClientPull;
LPWSTR pszNewURL = m_pwszClientPullURL;
m_pwszClientPullURL = NULL;
hr = BeginDownloadURL2(pszNewURL, m_iMethod, m_iOptions, NULL, m_dwMaxSize);
MemFree(pszNewURL);
if (SUCCEEDED(hr))
{
m_iNumClientPull = iNumClientPull + 1;
}
}
}
break;
case WM_URLDL_ONDLCOMPLETE :
if (m_pParent)
m_pParent->OnDownloadComplete(m_iID, (int)wParam);
return TRUE;
case WM_TIMER :
#ifdef DEBUG
DBG_WARN("CUrlDownload ERROR - TIMING OUT");
if ( m_fBrowserValid )
{
TraceMsg( TF_ALWAYS, "CUrlDownload::HandleMessage() - Browser Timeout." );
}
else
{
TraceMsg( TF_ALWAYS, "CUrlDownload::HandleMessage() - Non-Browser Timeout." );
}
if ( m_fbscValid )
{
TraceMsg( TF_ALWAYS, "CUrlDownload::HandleMessage() - UrlMon Timeout." );
}
else
{
TraceMsg( TF_ALWAYS, "CUrlDownload::HandleMessage() - Non-UrlMon Timeout." );
}
#endif
StopTimer();
AbortDownload(BDU2_ERROR_TIMEOUT);
return TRUE;
}
return TRUE;
}
HRESULT CUrlDownload::AbortDownload(int iErrorCode /* =-1 */)
{
HRESULT hr=S_FALSE;
BOOL fAborted=FALSE;
if (m_fBrowserValid)
{
ASSERT(m_pOleCmdTarget);
if (m_pOleCmdTarget)
{
m_pOleCmdTarget->Exec(NULL, OLECMDID_STOP, 0, NULL, NULL);
}
SAFELOCALFREE(m_pwszClientPullURL);
fAborted=TRUE;
m_fBrowserValid = FALSE;
}
if (m_fbscValid)
{
ASSERT(m_pCbsc);
if (m_pCbsc)
{
hr = m_pCbsc->Abort();
fAborted=TRUE;
SAFE_RELEASE_BSC();
}
m_fbscValid=FALSE;
}
if (fAborted && m_pParent)
{
OnDownloadComplete((iErrorCode==-1) ? BDU2_ERROR_ABORT : iErrorCode);
}
return hr;
}
// Loads browser, creates sink and hooks it up to sinks
HRESULT CUrlDownload::GetBrowser()
{
HRESULT hr = S_OK;
if (m_fAdviseOn)
return hr;
if (NULL == m_pDocument)
{
ASSERT(!m_pPersistMk);
ASSERT(!m_pCP);
hr = CoCreateInstance(CLSID_HTMLDocument, NULL,
CLSCTX_INPROC, IID_IHTMLDocument2, (void **)&m_pDocument);
DBG("Created new CLSID_HTMLDocument");
if (SUCCEEDED(hr))
{
IOleObject *pOleObj;
hr = m_pDocument->QueryInterface(IID_IOleObject, (void **)&pOleObj);
if (SUCCEEDED(hr))
{
pOleObj->SetClientSite((IOleClientSite *)this);
pOleObj->Release();
}
}
if (SUCCEEDED(hr))
{
hr = m_pDocument->QueryInterface(IID_IPersistMoniker, (void**)&m_pPersistMk);
}
if (SUCCEEDED(hr))
{
hr = m_pDocument->QueryInterface(IID_IOleCommandTarget, (void**)&m_pOleCmdTarget);
}
}
// At this point we have m_pDocument and m_pPersistMk
// Get DownloadNotify sink hooked up
IDownloadNotify *pNotify=NULL;
BOOL fNotifySet=FALSE;
if (SUCCEEDED(hr) && SUCCEEDED(m_pParent->GetDownloadNotify(&pNotify)) && pNotify)
{
IOleCommandTarget *pTarget=NULL;
if (SUCCEEDED(m_pDocument->QueryInterface(IID_IOleCommandTarget, (void **)&pTarget)) && pTarget)
{
VARIANTARG varIn;
varIn.vt = VT_UNKNOWN;
varIn.punkVal = (IUnknown *)pNotify;
if (SUCCEEDED(pTarget->Exec(&CGID_DownloadHost, DWNHCMDID_SETDOWNLOADNOTIFY, 0,
&varIn, NULL)))
{
fNotifySet=TRUE;
}
pTarget->Release();
}
if (!fNotifySet)
{
DBG_WARN("IDownloadNotify provided, but couldn't set callback!");
}
pNotify->Release();
}
if (!fNotifySet && (m_iOptions & BDU2_DOWNLOADNOTIFY_REQUIRED))
{
DBG_WARN("Couldn't set notify, parent requires it. CUrlDownload failing MSHTML download.");
hr = E_FAIL;
}
// Get PropertyNotifySink hooked up
// Find our connection point if necessary
if (NULL == m_pCP && SUCCEEDED(hr))
{
IConnectionPointContainer *pCPCont=NULL;
hr = m_pDocument->QueryInterface(IID_IConnectionPointContainer,
(void **)&pCPCont);
if (SUCCEEDED(hr))
{
hr = pCPCont->FindConnectionPoint(IID_IPropertyNotifySink, &m_pCP);
pCPCont->Release();
pCPCont = NULL;
}
}
// And hook it up to us
if (SUCCEEDED(hr))
{
// create sink
IPropertyNotifySink *pSink = (IPropertyNotifySink *)this;
hr = m_pCP->Advise(pSink, &m_dwConnectionCookie);
if (SUCCEEDED(hr))
{
m_fAdviseOn = TRUE;
}
}
if (FAILED(hr)) DBG_WARN("CUrlDownload::GetBrowser returning failure");
return hr;
}
void CUrlDownload::UnAdviseMe()
{
if (m_fAdviseOn)
{
m_pCP->Unadvise(m_dwConnectionCookie);
m_fAdviseOn = FALSE;
}
}
void CUrlDownload::DestroyBrowser()
{
CleanUpBrowser();
}
void CUrlDownload::DoneDownloading()
{
// Don't send any more messages to the parent
LeaveMeAlone();
AbortDownload();
CleanUp();
}
HRESULT CUrlDownload::GetScript(IHTMLWindow2 **ppWin)
{
HRESULT hr = E_FAIL;
IDispatch *pDisp=NULL;
ASSERT(ppWin);
*ppWin=NULL;
if (!m_fBrowserValid)
{
DBG("m_fBrowserValid FALSE, GetScript returning failure");
return E_FAIL;
}
*ppWin = NULL;
if (m_pScript)
{
m_pScript->AddRef();
*ppWin = m_pScript;
return S_OK;
}
if (m_pDocument)
{
hr = m_pDocument->get_Script(&pDisp);
if (!pDisp) hr=E_NOINTERFACE;
#ifdef DEBUG
if (FAILED(hr)) DBG_WARN("CUrlDownload::GetScript: get_Script failed");
#endif
}
if (SUCCEEDED(hr))
{
hr = pDisp->QueryInterface(IID_IHTMLWindow2, (void **)ppWin);
if (*ppWin == NULL) hr = E_NOINTERFACE;
pDisp->Release();
#ifdef DEBUG
if (FAILED(hr)) DBG_WARN("CUrlDownload::GetScript: QI IOmWindow2 failed");
#endif
}
// Save this so future GetScript() calls much faster
ASSERT(!m_pScript);
if (SUCCEEDED(hr))
{
m_pScript = *ppWin;
m_pScript->AddRef();
}
return hr;
}
// static member function
// Strips off anchor from URL (# not after ?)
// S_FALSE : Unchanged
// S_OK : Removed anchor
HRESULT CUrlDownload::StripAnchor(LPWSTR lpURL)
{
if (!lpURL) return E_POINTER;
while (*lpURL)
{
if (*lpURL == L'?')
return S_FALSE;
if (*lpURL == L'#')
{
*lpURL = L'\0';
return S_OK;
}
lpURL ++;
}
return S_FALSE;
}
// Returns pointer to '.' or pointer to null-terminator or query '?'
LPWSTR // ptr to period or to null-term or '?'
URLFindExtensionW(
LPCWSTR pszURL,
int *piLen) // length including period
{
LPCWSTR pszDot;
for (pszDot = NULL; *pszURL && *pszURL!='?'; pszURL++)
{
switch (*pszURL) {
case TEXT('.'):
pszDot = pszURL; // remember the last dot
break;
case TEXT('/'):
pszDot = NULL; // forget last dot, it was in a directory
break;
}
}
if (piLen)
{
if (pszDot)
*piLen = (int) (pszURL-pszDot);
else
*piLen = 0;
}
// if we found the extension, return ptr to the dot, else
// ptr to end of the string (NULL extension) (cast->non const)
return pszDot ? (LPWSTR)pszDot : (LPWSTR)pszURL;
}
// Returns TRUE if this appears to be an HTML URL
BOOL CUrlDownload::IsHtmlUrl(LPCWSTR lpURL)
{
LPWSTR pwch;
int iLen;
pwch = URLFindExtensionW(lpURL, &iLen);
if (*pwch && iLen)
{
pwch ++; iLen --;
// We found an extension. Check it out.
if ((iLen == 4 &&
(!MyAsciiCmpNIW(pwch, L"html", 4))) ||
(iLen == 3 &&
(!MyAsciiCmpNIW(pwch, L"htm", 3) ||
!MyAsciiCmpNIW(pwch, L"htt", 3) ||
!MyAsciiCmpNIW(pwch, L"asp", 3) ||
!MyAsciiCmpNIW(pwch, L"htx", 3)
)))
{
// known HTML extension
return TRUE;
}
}
return FALSE;
}
// Returns TRUE if this appears NOT to be an HTML URL
BOOL CUrlDownload::IsNonHtmlUrl(LPCWSTR lpURL)
{
LPWSTR pwch;
int iLen;
pwch = URLFindExtensionW(lpURL, &iLen);
if (*pwch && iLen)
{
pwch ++; iLen --;
// We found an extension. Check it out.
if ((iLen==3) &&
(!MyAsciiCmpNIW(pwch, L"bmp", 3) ||
!MyAsciiCmpNIW(pwch, L"cab", 3) ||
!MyAsciiCmpNIW(pwch, L"cdf", 3) ||
!MyAsciiCmpNIW(pwch, L"jpg", 3) ||
!MyAsciiCmpNIW(pwch, L"exe", 3) ||
!MyAsciiCmpNIW(pwch, L"zip", 3) ||
!MyAsciiCmpNIW(pwch, L"doc", 3) ||
!MyAsciiCmpNIW(pwch, L"gif", 3)
))
{
// known non-HTML extension
return TRUE;
}
}
return FALSE;
}
// Returns TRUE if this is a URL we should try to download (http:)
BOOL CUrlDownload::IsValidURL(LPCWSTR lpURL)
{
// Check protocol
// HKEY hk;
#if 0
BOOL fValidProtocol = FALSE;
// Always accept http or https
if (!StrCmpNIW(lpURL, L"http", 4))
fValidProtocol = TRUE;
if (!fValidProtocol &&
(ERROR_SUCCESS == RegOpenKeyEx(HKEY_CLASSES_ROOT, TEXT("PROTOCOLS\\Handler"), 0, KEY_QUERY_VALUE, &hk)))
{
// Crack out protocol
DWORD dwData=0, cbData = sizeof(DWORD);
int i;
char ch[16];
// we know we are 7-bit
for (i=0; i<ARRAYSIZE(ch) && lpURL[i] != L':' && lpURL[i]; i++)
ch[i] = (char) (lpURL[i]);
if (i<ARRAYSIZE(ch))
{
ch[i] = '\0';
// We have protocol
if (NO_ERROR == SHGetValue(hk, ch, TEXT("SupportsNoUI"), NULL, &dwData, &cbData))
{
if (dwData != 0)
fValidProtocol = TRUE; // Passed test
}
#ifdef DEBUG
if (!fValidProtocol)
TraceMsgA(TF_THISMODULE, "IsValidUrl failing url protocol=%s url=%ws", ch, lpURL);
#endif
}
RegCloseKey(hk);
}
#endif
// See if this protocol will give us something for the cache
BOOL fUsesCache=FALSE;
DWORD dwBufSize=0;
CoInternetQueryInfo(lpURL, QUERY_USES_CACHE, 0,
&fUsesCache, sizeof(fUsesCache), &dwBufSize, 0);
if (!fUsesCache || (S_FALSE == ::IsValidURL(NULL, lpURL, 0)))
return FALSE;
return TRUE;
}
HRESULT CUrlDownload::GetRealURL(LPWSTR *ppwszURL)
{
*ppwszURL = NULL;
if (!m_fBrowserValid)
{
if (m_pwszURL)
*ppwszURL = StrDupW(m_pwszURL);
}
else
{
// Get the real URL from the browser in case we were redirected
// We could optimize to do this only once
ITargetContainer *pTarget=NULL;
LPWSTR pwszThisUrl=NULL;
if (m_pDocument)
{
m_pDocument->QueryInterface(IID_ITargetContainer, (void **)&pTarget);
if (pTarget)
{
pTarget->GetFrameUrl(&pwszThisUrl);
pTarget->Release();
}
}
if (pwszThisUrl)
{
if (m_pwszURL) MemFree(m_pwszURL);
m_pwszURL = StrDupW(pwszThisUrl);
*ppwszURL = StrDupW(pwszThisUrl);
CoTaskMemFree(pwszThisUrl);
}
else if (m_pwszURL)
{
*ppwszURL = StrDupW(m_pwszURL);
}
}
return (*ppwszURL) ? S_OK : E_OUTOFMEMORY;
}
HRESULT CUrlDownload::GetDocument(IHTMLDocument2 **ppDoc)
{
HRESULT hr;
if (!m_fBrowserValid)
{
DBG("GetDocument failing, m_fBrowserValid FALSE");
*ppDoc = NULL;
return E_FAIL;
}
*ppDoc = m_pDocument;
if (m_pDocument)
{
m_pDocument->AddRef();
hr = S_OK;
}
else
hr = E_NOINTERFACE;
return hr;
}
HRESULT CUrlDownload::GetStream(IStream **ppStm)
{
if (!m_pStm)
{
DBG("Stream not available, CUrlDownload::GetStream failing");
*ppStm = NULL;
return E_FAIL;
}
*ppStm = m_pStm;
(*ppStm)->AddRef();
return S_OK;
}
HRESULT CUrlDownload::GetLastModified(SYSTEMTIME *pstLastModified)
{
if (NULL == pstLastModified)
return E_INVALIDARG;
if (NULL == m_pstLastModified)
return E_FAIL;
CopyMemory(pstLastModified, m_pstLastModified, sizeof(SYSTEMTIME));
return S_OK;
}
HRESULT CUrlDownload::GetResponseCode(DWORD *pdwResponseCode)
{
if (m_dwResponseCode == 0)
return E_FAIL;
*pdwResponseCode = m_dwResponseCode;
return S_OK;
}
// Start or extend timer
void CUrlDownload::StartTimer()
{
if (m_hwndMe)
{
if (!m_iTimerID)
{
m_iTimerID = 1;
DBG("CUrlDownload Creating new timeout timer");
}
m_iTimerID = SetTimer(m_hwndMe, 1, 1000 * m_nTimeout, NULL);
}
}
void CUrlDownload::StopTimer()
{
if (m_hwndMe && m_iTimerID)
{
DBG("CUrlDownload destroying timeout timer");
KillTimer(m_hwndMe, m_iTimerID);
m_iTimerID = 0;
}
}
//
// IUnknown of CUrlDownload
//
STDMETHODIMP CUrlDownload::QueryInterface(REFIID riid, void ** ppv)
{
*ppv=NULL;
// Validate requested interface
if (IID_IOleClientSite == riid)
*ppv=(IOleClientSite *)this;
else if (IID_IPropertyNotifySink == riid)
*ppv=(IPropertyNotifySink *)this;
else if (IID_IOleCommandTarget == riid)
*ppv=(IOleCommandTarget *)this;
else if (IID_IDispatch == riid)
*ppv=(IDispatch *)this;
else if (IID_IServiceProvider == riid)
*ppv = (IServiceProvider *)this;
else if (IID_IAuthenticate == riid)
*ppv = (IAuthenticate *)this;
else if (IID_IInternetSecurityManager == riid)
*ppv = (IInternetSecurityManager *)this;
else if (IID_IHttpSecurity == riid)
*ppv = (IHttpSecurity *)this;
else if ((IID_IUnknown == riid) ||
(IID_IHlinkFrame == riid))
*ppv = (IHlinkFrame *)this;
else
{
// DBGIID("CUrlDownload::QueryInterface() failing", riid);
}
// Addref through the interface
if (NULL != *ppv)
{
((LPUNKNOWN)*ppv)->AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
STDMETHODIMP_(ULONG) CUrlDownload::AddRef(void)
{
return ++m_cRef;
}
STDMETHODIMP_(ULONG) CUrlDownload::Release(void)
{
if (0L != --m_cRef)
return 1L;
delete this;
return 0L;
}
STDMETHODIMP CUrlDownload::GetTypeInfoCount(UINT *pctinfo)
{
return E_NOTIMPL;
}
STDMETHODIMP CUrlDownload::GetTypeInfo(UINT itinfo, LCID lcid, ITypeInfo **pptinfo)
{
return E_NOTIMPL;
}
STDMETHODIMP CUrlDownload::GetIDsOfNames(REFIID riid, OLECHAR **rgszNames, UINT cNames, LCID lcid, DISPID *rgdispid)
{
return E_NOTIMPL;
}
STDMETHODIMP CUrlDownload::Invoke(DISPID dispidMember, REFIID riid, LCID lcid, WORD wFlags,
DISPPARAMS *pdispparams, VARIANT *pvarResult,
EXCEPINFO *pexcepinfo, UINT *puArgErr)
{
if (!pvarResult)
return E_INVALIDARG;
ASSERT(pvarResult->vt == VT_EMPTY);
if (wFlags == DISPATCH_PROPERTYGET)
{
HRESULT hr = DISP_E_MEMBERNOTFOUND;
switch (dispidMember)
{
case DISPID_AMBIENT_DLCONTROL :
TraceMsg(TF_THISMODULE, "Returning DLCONTROL ambient property 0x%08x", m_lBindFlags);
pvarResult->vt = VT_I4;
pvarResult->lVal = m_lBindFlags;
hr = S_OK;
break;
case DISPID_AMBIENT_USERAGENT:
DBG("Returning User Agent ambient property");
pvarResult->bstrVal = SysAllocString(GetUserAgent());
if (pvarResult->bstrVal != NULL)
{
pvarResult->vt = VT_BSTR;
hr = S_OK;
}
break;
}
return hr;
}
return DISP_E_MEMBERNOTFOUND;
}
// IPropertyNotifySink
STDMETHODIMP CUrlDownload::OnChanged(DISPID dispID)
{
// We've received a notification, extend our timer if it's currently running
if (m_iTimerID)
StartTimer();
if ((DISPID_READYSTATE == dispID) ||
(DISPID_UNKNOWN == dispID))
{
// Find out if we're done
if (m_fWaitingForReadyState)
{
VARIANT varState;
DISPPARAMS dp;
VariantInit(&varState);
if (SUCCEEDED(m_pDocument->Invoke(DISPID_READYSTATE,
IID_NULL,
GetUserDefaultLCID(),
DISPATCH_PROPERTYGET,
&dp,
&varState, NULL, NULL)) &&
V_VT(&varState)==VT_I4 &&
V_I4(&varState)== READYSTATE_COMPLETE)
{
m_fWaitingForReadyState = FALSE;
// Successful download. See if a client-pull is waiting.
if (m_pwszClientPullURL)
PostMessage(m_hwndMe, WM_URLDL_CLIENTPULL, 0, 0);
else
OnDownloadComplete(BDU2_ERROR_NONE);
}
}
}
return S_OK;
}
STDMETHODIMP CUrlDownload::OnRequestEdit(DISPID dispID)
{
return S_OK;
}
// IOleCommandTarget
STDMETHODIMP CUrlDownload::QueryStatus(const GUID *pguidCmdGroup, ULONG cCmds,
OLECMD prgCmds[], OLECMDTEXT *pCmdText)
{
return OLECMDERR_E_UNKNOWNGROUP;
}
STDMETHODIMP CUrlDownload::Exec(const GUID *pguidCmdGroup, DWORD nCmdID,
DWORD nCmdexecopt, VARIANTARG *pvarargIn,
VARIANTARG *pvarargOut)
{
HRESULT hres = OLECMDERR_E_NOTSUPPORTED;
if (pguidCmdGroup == NULL)
{
switch(nCmdID)
{
case OLECMDID_SETPROGRESSPOS:
{
hres = S_OK;
VARIANT varBytes;
if (m_pOleCmdTarget)
{
varBytes.vt=VT_EMPTY;
m_pOleCmdTarget->Exec(&CGID_MSHTML, IDM_GETBYTESDOWNLOADED, 0, NULL, &varBytes);
if (varBytes.vt == VT_I4)
{
DWORD dwBytes = (DWORD) varBytes.lVal;
TraceMsg(TF_THISMODULE, "%d bytes on page so far (mshtml)", dwBytes);
ProgressBytes(dwBytes);
}
}
// 14032: If dialmon is around, tell it that something is going on
IndicateDialmonActivity();
}
break;
//
// The containee has found an http-equiv meta tag; handle it
// appropriately (client pull)
//
case OLECMDID_HTTPEQUIV_DONE:
hres = S_OK;
break;
case OLECMDID_HTTPEQUIV:
{
LPWSTR pwszEquivString = pvarargIn? pvarargIn->bstrVal : NULL;
BOOL fHasHeader = (pwszEquivString!=NULL);
if (pvarargIn && pvarargIn->vt != VT_BSTR)
return OLECMDERR_E_NOTSUPPORTED;
if (!fHasHeader || StrCmpNIW(c_wszRefresh, pwszEquivString, lstrlenW(c_wszRefresh)) == 0)
{
// Hit. Now do the right thing for this header
// We pass both the header and a pointer to the first char after
// ':', which is usually the delimiter handlers will look for.
LPWSTR pwszColon = fHasHeader ? StrChrW(pwszEquivString, ':') : NULL;
// Enforce the : at the end of the header
if (fHasHeader && !pwszColon)
{
return OLECMDERR_E_NOTSUPPORTED;
}
hres = HandleRefresh(pwszEquivString, pwszColon ? pwszColon+1:NULL,
(nCmdID == OLECMDID_HTTPEQUIV_DONE));
}
}
// if we return OLECMDERR_E_NOTSUPPORTED, we don't handle
// client pull
break;
}
}
if ((hres == OLECMDERR_E_NOTSUPPORTED) && m_pParent)
{
hres = m_pParent->OnOleCommandTargetExec(pguidCmdGroup, nCmdID, nCmdexecopt,
pvarargIn, pvarargOut);
}
return hres;
}
// The basic operation was lifted from shdocvw\basesb.cpp
HRESULT CUrlDownload::HandleRefresh(LPWSTR pwszEquivString, LPWSTR pwszContent, BOOL fDone)
{
unsigned int uiTimeout = 0;
WCHAR awch[INTERNET_MAX_URL_LENGTH];
if (fDone)
{
return S_OK; // fDone means we don't process this
}
// NSCompat: we only honor the first successfully parsed Refresh
if (m_pwszClientPullURL)
return S_OK;
if (!pwszContent ||
!ParseRefreshContent(pwszContent, &uiTimeout, awch, INTERNET_MAX_URL_LENGTH))
{
return OLECMDERR_E_NOTSUPPORTED; // cannot handle refresh w/o timeout
}
if (!awch[0])
{
DBG("CUrlDownload ignoring client-pull directive with no url");
return S_OK;
}
if (m_iNumClientPull >= MAX_CLIENT_PULL_NUM)
{
DBG("Max # client pulls exceeded; ignoring client pull directive");
return S_OK;
}
TraceMsg(TF_THISMODULE, "CUrlDownload client pull (refresh=%d) url=%ws", uiTimeout, awch);
if (uiTimeout > MAX_CLIENT_PULL_TIMEOUT)
{
DBG("Ignoring client-pull directive with large timeout");
return S_OK;
}
m_pwszClientPullURL = StrDupW(awch);
// If we can't copy the URL, don't set the timer or else we'll
// keep reloading the same page.
if (m_pwszClientPullURL == NULL)
return OLECMDERR_E_NOTSUPPORTED;
return S_OK;
}
HRESULT CUrlDownload::SetDLCTL(long lFlags)
{
// TraceMsg(TF_THISMODULE, "CUrlDownload: SetDLCTL %04x", lFlags);
m_lBindFlags = lFlags | DLCTL_SILENT;
if (m_fSetResync)
m_lBindFlags |= DLCTL_RESYNCHRONIZE;
return S_OK;
}
#define INET_E_AGENT_BIND_IN_PROGRESS 0x800C0FFF
//==============================================================================
// UrlMon download code
//==============================================================================
HRESULT CUrlDownload::BeginDownloadWithUrlMon(
LPCWSTR pwszURL,
LPTSTR pszLocalFile,
IEnumFORMATETC *pEFE)
{
IStream* pstm = NULL;
IMoniker* pmk = NULL;
IBindCtx* pbc = NULL;
HRESULT hr;
hr = CreateURLMoniker(NULL, pwszURL, &pmk);
if (FAILED(hr))
{
DBG_WARN("CreateURLMoniker failed");
goto LErrExit;
}
SAFE_RELEASE_BSC();
m_pCbsc = new CUrlDownload_BSC(m_iMethod, m_iOptions, pszLocalFile);
if (m_pCbsc == NULL)
{
hr = E_OUTOFMEMORY;
goto LErrExit;
}
hr = CreateBindCtx(0, &pbc);
if (FAILED(hr))
goto LErrExit;
if (pEFE)
{
hr = RegisterFormatEnumerator(pbc, pEFE, 0);
if (FAILED(hr))
DBG_WARN("RegisterFormatEnumerator failed (continuing download)");
}
hr = RegisterBindStatusCallback(pbc,
(IBindStatusCallback *)m_pCbsc,
0,
0L);
if (FAILED(hr))
goto LErrExit;
m_pCbsc->SetParent(this);
m_fbscValid = TRUE;
m_hrStatus = INET_E_AGENT_BIND_IN_PROGRESS;
StartTimer(); // Start our timeout
hr = pmk->BindToStorage(pbc, 0, IID_IStream, (void**)&pstm);
if (m_hrStatus != INET_E_AGENT_BIND_IN_PROGRESS)
{
// Synchronous success or failure. Call OnDownloadComplete.
// We can't do it in OnStopBinding because Urlmon returns hrStatus=S_OK...
// even if it fails.
if (FAILED(hr) || FAILED(m_hrStatus))
OnDownloadComplete(BDU2_ERROR_GENERAL);
else
OnDownloadComplete(BDU2_ERROR_NONE);
DBG("Synchronous bind; OnDownloadComplete called");
}
m_hrStatus = S_OK; // need this so we get OnDownloadComplete (asynch OnStopBinding)
hr = S_OK; // need this so we don't get extra OnDownloadComplete (BDU2)
// Bind has started (and maybe completed), release stuff we don't need
pmk->Release();
pbc->Release();
if (pstm)
pstm->Release();
return hr;
LErrExit:
DBG_WARN("Error in CUrlDownload::BeginDownloadWithUrlMon");
if (pbc) pbc->Release();
if (pmk) pmk->Release();
if (pstm) pstm->Release();
SAFERELEASE(m_pCbsc);
return hr;
} // CUrlDownload::BeginDownloadWithUrlMon
void CUrlDownload::BSC_OnStartBinding()
{
DBG("BSC_OnStartBinding");
}
// We only get this call if we're not downloading with the browser.
void CUrlDownload::BSC_OnStopBinding(HRESULT hrStatus, IStream *pStm)
{
TraceMsg(TF_THISMODULE, "BSC_OnStopBinding (hrStatus=0x%08x)", (long)hrStatus);
ASSERT(m_pCbsc);
// It is ok to not have stream when we requested it (robots.txt)
// ASSERT(( pStm && (m_iOptions & BDU2_NEEDSTREAM)) ||
// (!pStm && !(m_iOptions & BDU2_NEEDSTREAM)));
ASSERT(!pStm || (m_iOptions & BDU2_NEEDSTREAM));
ASSERT(!m_pStm);
// Save stream for caller if they requested it
// We keep it until the release it (ReleaseStream) or nav to another url
if (pStm && (m_iOptions & BDU2_NEEDSTREAM))
{
if (m_pStm) m_pStm->Release();
m_pStm = pStm;
m_pStm->AddRef();
}
// Send OnDownloadComplete, stop the timer
if (m_iMethod == BDU2_HEADONLY && m_pstLastModified)
hrStatus = S_OK; // We got what we came for (hrStatus will be E_ABORT)
if (m_hrStatus != INET_E_AGENT_BIND_IN_PROGRESS)
OnDownloadComplete(SUCCEEDED(hrStatus) ? BDU2_ERROR_NONE : BDU2_ERROR_GENERAL);
else
{
DBG("Not calling OnDownloadComplete; synchronous bind");
m_hrStatus = hrStatus;
}
m_fbscValid = FALSE;
SAFE_RELEASE_BSC();
}
void CUrlDownload::BSC_OnProgress(ULONG ulProgress, ULONG ulProgressMax)
{
// extend our timer
if (m_iTimerID)
StartTimer();
}
void CUrlDownload::BSC_FoundLastModified(SYSTEMTIME *pstLastModified)
{
DBG("Received last modified time");
SAFELOCALFREE(m_pstLastModified);
m_pstLastModified = (SYSTEMTIME *)MemAlloc(LMEM_FIXED, sizeof(SYSTEMTIME));
if (m_pstLastModified)
{
CopyMemory(m_pstLastModified, pstLastModified, sizeof(SYSTEMTIME));
}
}
void CUrlDownload::BSC_FoundMimeType(CLIPFORMAT cf)
{
TraceMsg(TF_THISMODULE, "FoundMimeType %d", (int)cf);
BOOL fAbort = FALSE, fBrowser=FALSE;
HRESULT hr=S_OK;
// Abort if not html if necessary.
if ((m_iOptions & BDU2_FAIL_IF_NOT_HTML) && (cf != g_cfHTML))
{
DBG("Aborting non-HTML download");
fAbort = TRUE;
OnDownloadComplete(BDU2_ERROR_NOT_HTML);
}
// Abort the UrlMon download if necessary. Fire off
// a browser download if necessary.
if (((m_iMethod == BDU2_SMART) || (m_iMethod == BDU2_SNIFF)) && (cf == g_cfHTML))
{
// Switch into the browser.
ASSERT(m_pwszURL);
if (m_pwszURL &&
(m_dwResponseCode != 401)) // Don't bother if it's auth failure
{
DBG("Switching UrlMon download into browser");
hr = BeginDownloadWithBrowser(m_pwszURL);
if (SUCCEEDED(hr))
fBrowser = TRUE;
}
}
if (fAbort || fBrowser)
{
// Disconnect the BSC so that we don't get any more notifications.
// If we're switching into the browser, don't abort the UrlMon
// download to help avoid getting multiple GET requests. We do
// disconnect the BSC but still maintain a ref to it so we abort
// it if necessary.
ASSERT(m_pCbsc);
if (m_pCbsc)
{
m_pCbsc->SetParent(NULL); // We don't want OnStopBinding
if (fAbort)
{
m_pCbsc->Abort();
m_pCbsc->Release();
m_pCbsc=NULL;
m_fbscValid = FALSE;
}
}
}
}
// Returns content for Accept-Language header
LPCWSTR CUrlDownload::GetAcceptLanguages()
{
if (0 == m_iLangStatus)
{
DWORD cchLang = ARRAYSIZE(m_achLang);
if (SUCCEEDED(::GetAcceptLanguagesW(m_achLang, &cchLang)))
{
m_iLangStatus = 1;
}
else
{
m_iLangStatus = 2;
}
}
if (1 == m_iLangStatus)
{
return m_achLang;
}
return NULL;
}
HRESULT CUrlDownload::ProgressBytes(DWORD dwBytes)
{
if (m_dwMaxSize > 0 && dwBytes > m_dwMaxSize)
{
TraceMsg(TF_THISMODULE, "CUrlDownload MaxSize exceeded aborting. %d of %d bytes", dwBytes, m_dwMaxSize);
AbortDownload(BDU2_ERROR_MAXSIZE);
return E_ABORT;
}
return S_OK;
}
//---------------------------------------------------------------
// IServiceProvider
STDMETHODIMP CUrlDownload::QueryService(REFGUID guidService, REFIID riid, void **ppvObject)
{
if ((SID_SHlinkFrame == guidService && IID_IHlinkFrame == riid) ||
(IID_IAuthenticate == guidService && IID_IAuthenticate == riid) ||
(SID_SInternetSecurityManager == guidService && IID_IInternetSecurityManager == riid) ||
(IID_IHttpSecurity == guidService && IID_IHttpSecurity == riid))
{
return QueryInterface(riid, ppvObject);
}
else
{
*ppvObject = NULL;
return E_NOINTERFACE;
}
}
//---------------------------------------------------------------
//IHttpSecurity
STDMETHODIMP CUrlDownload::OnSecurityProblem(DWORD dwProblem)
{
return S_FALSE;
}
STDMETHODIMP CUrlDownload::GetWindow( REFGUID rguidReason, HWND *phwnd ) {
if(phwnd && m_hwndMe) {
*phwnd = m_hwndMe;
} else
return E_FAIL;
return S_OK;
}
//---------------------------------------------------------------
// IAuthenticate
STDMETHODIMP CUrlDownload::Authenticate(HWND *phwnd, LPWSTR *ppszUsername, LPWSTR *ppszPassword)
{
HRESULT hr;
ASSERT(phwnd && ppszUsername && ppszPassword);
*phwnd = (HWND)-1;
*ppszUsername = NULL;
*ppszPassword = NULL;
if (m_pParent)
hr = m_pParent->OnAuthenticate(phwnd, ppszUsername, ppszPassword);
else
hr = E_NOTIMPL;
TraceMsg(TF_THISMODULE, "CUrlDownload::Authenticate returning hr=%08x", hr);
return hr;
}
//---------------------------------------------------------------
// IHlinkFrame
STDMETHODIMP CUrlDownload::SetBrowseContext(IHlinkBrowseContext *pihlbc)
{
DBG_WARN("CUrlDownload::SetBrowseContext() not implemented");
return E_NOTIMPL;
}
STDMETHODIMP CUrlDownload::GetBrowseContext(IHlinkBrowseContext **ppihlbc)
{
DBG_WARN("CUrlDownload::GetBrowseContext() not implemented");
return E_NOTIMPL;
}
STDMETHODIMP CUrlDownload::Navigate(DWORD grfHLNF, LPBC pbc, IBindStatusCallback *pibsc, IHlink *pihlNavigate)
{
// We should only get a call through IHlinkFrame->Navigate()
// when the webcrawler has submitted a form for authentication.
// Bail out if that's not the case.
if (!m_fFormSubmitted)
{
DBG_WARN("CUrlDownload::Navigate() without a form submission!!!");
return E_NOTIMPL;
}
// Our timer has already been started. If this fails, OnDownloadComplete will get
// called when we time out.
// We don't support a wide variety of parameters.
ASSERT(grfHLNF == 0);
ASSERT(pbc);
ASSERT(pibsc);
ASSERT(pihlNavigate);
// Get the moniker from IHlink
HRESULT hr;
IMoniker *pmk = NULL;
hr = pihlNavigate->GetMonikerReference(HLINKGETREF_ABSOLUTE, &pmk, NULL);
if (SUCCEEDED(hr))
{
// Load the URL with the post data.
// WARNING: What if we get redirected to something other than HTML? (beta 2)
hr = m_pPersistMk->Load(FALSE, pmk, pbc, 0);
SAFERELEASE(pmk);
if (SUCCEEDED(hr))
{
m_fBrowserValid = TRUE;
StartTimer(); // Start our timeout
// Need to wait again.
m_fWaitingForReadyState = TRUE;
DBG("CUrlDownload::Navigate (IHLinkFrame) succeeded");
}
}
return hr;
}
STDMETHODIMP CUrlDownload::OnNavigate(DWORD grfHLNF, IMoniker *pimkTarget, LPCWSTR pwzLocation, LPCWSTR pwzFriendlyName, DWORD dwreserved)
{
DBG_WARN("CUrlDownload::OnNavigate() not implemented");
return E_NOTIMPL;
}
STDMETHODIMP CUrlDownload::UpdateHlink(ULONG uHLID, IMoniker *pimkTarget, LPCWSTR pwzLocation, LPCWSTR pwzFriendlyName)
{
DBG_WARN("CUrlDownload::UpdateHlink() not implemented");
return E_NOTIMPL;
}
//---------------------------------------------------------------------
// IInternetSecurityManager interface
// Used to override security to allow form submits, for form auth sites
HRESULT CUrlDownload::SetSecuritySite(IInternetSecurityMgrSite *pSite)
{
return E_NOTIMPL;
}
HRESULT CUrlDownload::GetSecuritySite(IInternetSecurityMgrSite **ppSite)
{
return E_NOTIMPL;
}
HRESULT CUrlDownload::MapUrlToZone(LPCWSTR pwszUrl, DWORD *pdwZone, DWORD dwFlags)
{
return INET_E_DEFAULT_ACTION;
}
HRESULT CUrlDownload::GetSecurityId(LPCWSTR pwszUrl, BYTE *pbSecurityId, DWORD *pcbSecurityId, DWORD_PTR dwReserved)
{
return INET_E_DEFAULT_ACTION;
}
HRESULT CUrlDownload::ProcessUrlAction(LPCWSTR pwszUrl, DWORD dwAction, BYTE __RPC_FAR *pPolicy, DWORD cbPolicy, BYTE *pContext, DWORD cbContext, DWORD dwFlags, DWORD dwReserved)
{
if ((dwAction == URLACTION_HTML_SUBMIT_FORMS_TO) ||
(dwAction == URLACTION_HTML_SUBMIT_FORMS_FROM))
{
return S_OK;
}
return INET_E_DEFAULT_ACTION;
}
HRESULT CUrlDownload::QueryCustomPolicy(LPCWSTR pwszUrl, REFGUID guidKey, BYTE **ppPolicy, DWORD *pcbPolicy, BYTE *pContext, DWORD cbContext, DWORD dwReserved)
{
return INET_E_DEFAULT_ACTION;
}
HRESULT CUrlDownload::SetZoneMapping(DWORD dwZone, LPCWSTR lpszPattern, DWORD dwFlags)
{
return INET_E_DEFAULT_ACTION;
}
HRESULT CUrlDownload::GetZoneMappings(DWORD dwZone, IEnumString **ppenumString, DWORD dwFlags)
{
return INET_E_DEFAULT_ACTION;
}
//---------------------------------------------------------------
// CUrlDownload_BSC class
//---------------------------------------------------------------
CUrlDownload_BSC::CUrlDownload_BSC(
BDUMethod iMethod,
BDUOptions iOptions,
LPTSTR pszLocalFile)
{
// Maintain global count of objects
DllAddRef();
m_cRef = 1;
m_iMethod = iMethod;
m_iOptions = iOptions;
if (NULL != pszLocalFile)
{
m_pszLocalFileDest = StrDup(pszLocalFile);
if (m_iMethod != BDU2_URLMON)
{
DBG_WARN("CUrlDownload_BSC changing method to URLMON (local file specified)");
m_iMethod = BDU2_URLMON;
}
}
}
CUrlDownload_BSC::~CUrlDownload_BSC()
{
// Maintain global count of objects
DllRelease();
ASSERT(!m_pBinding);
SAFERELEASE(m_pstm);
SAFELOCALFREE(m_pszLocalFileDest);
SAFELOCALFREE(m_pwszLocalFileSrc);
}
void CUrlDownload_BSC::SetParent(CUrlDownload *pUrlDownload)
{
m_pParent = pUrlDownload;
}
HRESULT CUrlDownload_BSC::Abort()
{
if (m_pBinding)
{
return m_pBinding->Abort();
}
return S_FALSE;
}
STDMETHODIMP CUrlDownload_BSC::QueryInterface(REFIID riid, void** ppv)
{
*ppv = NULL;
if (riid==IID_IUnknown || riid==IID_IBindStatusCallback)
{
*ppv = (IBindStatusCallback *)this;
AddRef();
return S_OK;
}
if (riid==IID_IHttpNegotiate)
{
*ppv = (IHttpNegotiate *)this;
AddRef();
return S_OK;
}
if (riid==IID_IAuthenticate)
{
*ppv = (IAuthenticate *)this;
AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
//---------------------------------------------------------------
// IAuthenticate
STDMETHODIMP CUrlDownload_BSC::Authenticate(HWND *phwnd, LPWSTR *ppszUsername, LPWSTR *ppszPassword)
{ //copied from CUrlDownload::Authenticate (to whom we pass off anyway)
HRESULT hr;
ASSERT(phwnd && ppszUsername && ppszPassword);
*phwnd = (HWND)-1;
*ppszUsername = NULL;
*ppszPassword = NULL;
// Only try this once. If Urlmon asks again, fail it and flag an error.
if (m_fTriedAuthenticate)
{
if (m_pParent)
{
m_pParent->m_dwResponseCode = 401;
DBG("CUrlDownload_BSC::Authenticate called twice. Faking 401 response");
}
return E_FAIL;
}
m_fTriedAuthenticate = TRUE;
if (m_pParent)
hr = m_pParent->Authenticate(phwnd, ppszUsername, ppszPassword);
else
hr = E_NOTIMPL;
if (FAILED(hr) && m_pParent)
{
m_pParent->m_dwResponseCode = 401;
DBG("CUrlDownload_BSC::Authenticate called; no username/pass. Faking 401 response");
}
TraceMsg(TF_THISMODULE, "CUrlDownload_BSC::Authenticate returning hr=%08x", hr);
return hr;
}
STDMETHODIMP CUrlDownload_BSC::OnStartBinding(
DWORD dwReserved,
IBinding* pbinding)
{
m_fSentMimeType = FALSE;
if (m_pBinding != NULL)
m_pBinding->Release();
m_pBinding = pbinding;
if (m_pBinding != NULL)
{
m_pBinding->AddRef();
}
if (m_pParent)
m_pParent->BSC_OnStartBinding();
return S_OK;
}
// ---------------------------------------------------------------------------
// %%Function: CUrlDownload_BSC::GetPriority
// ---------------------------------------------------------------------------
STDMETHODIMP
CUrlDownload_BSC::GetPriority(LONG* pnPriority)
{
return E_NOTIMPL;
}
// ---------------------------------------------------------------------------
// %%Function: CUrlDownload_BSC::OnLowResource
// ---------------------------------------------------------------------------
STDMETHODIMP
CUrlDownload_BSC::OnLowResource(DWORD dwReserved)
{
return E_NOTIMPL;
}
// ---------------------------------------------------------------------------
// %%Function: CUrlDownload_BSC::OnProgress
// ---------------------------------------------------------------------------
STDMETHODIMP
CUrlDownload_BSC::OnProgress(ULONG ulProgress, ULONG ulProgressMax, ULONG ulStatusCode, LPCWSTR szStatusText)
{
// TraceMsg(TF_THISMODULE, "cbsc::OnProgress %d of %d : msg %ws", ulProgress, ulProgressMax, szStatusText);
/*
if (ulStatusCode==BINDSTATUS_USINGCACHEDCOPY)
*/
if (ulStatusCode == BINDSTATUS_REDIRECTING)
{
DBG("CUrlDownload_BSC::OnProgress getting redirected url");
TraceMsg(TF_THISMODULE, "New url=%ws", szStatusText);
if (m_pParent)
{
if (m_pParent->m_pwszURL) MemFree(m_pParent->m_pwszURL);
m_pParent->m_pwszURL = StrDupW(szStatusText);
}
}
if ((ulStatusCode == BINDSTATUS_CACHEFILENAMEAVAILABLE) && m_pszLocalFileDest)
{
ASSERT(!m_pwszLocalFileSrc);
DBG("CUrlDownload_BSC::OnProgress Getting local file name");
if (!m_pwszLocalFileSrc)
m_pwszLocalFileSrc = StrDupW(szStatusText);
}
if (m_pParent)
m_pParent->BSC_OnProgress(ulProgress, ulProgressMax);
// 14032: If dialmon is around, tell it that something is going on
IndicateDialmonActivity();
return S_OK;
}
STDMETHODIMP CUrlDownload_BSC::OnStopBinding(
HRESULT hrStatus,
LPCWSTR pszError)
{
#ifdef DEBUG
if (hrStatus && (hrStatus != E_ABORT))
TraceMsg(TF_THISMODULE,
"cbsc: File download Failed hr=%08x.", (int)hrStatus);
#endif
if (m_pParent)
m_pParent->BSC_OnStopBinding(hrStatus, (m_iOptions&BDU2_NEEDSTREAM) ? m_pstm : NULL);
// We should have neither or both of these
ASSERT(!m_pwszLocalFileSrc == !m_pszLocalFileDest);
if (m_pwszLocalFileSrc && m_pszLocalFileDest)
{
// Copy or move file from cache file to file/directory requested
// We have a LPWSTR source name and an LPTSTR destination
TCHAR szSrc[MAX_PATH];
TCHAR szDest[MAX_PATH];
LPTSTR pszSrcFileName, pszDest=NULL;
MyOleStrToStrN(szSrc, MAX_PATH, m_pwszLocalFileSrc);
// Combine paths to find destination filename if necessary
if (PathIsDirectory(m_pszLocalFileDest))
{
pszSrcFileName = PathFindFileName(szSrc);
if (pszSrcFileName)
{
PathCombine(szDest, m_pszLocalFileDest, pszSrcFileName);
pszDest = szDest;
}
}
else
{
pszDest = m_pszLocalFileDest;
}
if (pszDest)
{
TraceMsg(TF_THISMODULE, "Copying file\n%s\n to file \n%s", szSrc, pszDest);
CopyFile(szSrc, pszDest, FALSE);
}
else
DBG_WARN("Unable to get dest path for local file");
}
SAFERELEASE(m_pstm);
SAFERELEASE(m_pBinding);
return S_OK;
}
STDMETHODIMP CUrlDownload_BSC::GetBindInfo(
DWORD *pgrfBINDF,
BINDINFO *pbindInfo)
{
if ( !pgrfBINDF || !pbindInfo || !pbindInfo->cbSize )
return E_INVALIDARG;
*pgrfBINDF = BINDF_ASYNCHRONOUS | BINDF_ASYNCSTORAGE | BINDF_NO_UI;
if (m_pszLocalFileDest)
*pgrfBINDF |= BINDF_NEEDFILE;
if (m_pParent && m_pParent->m_fSetResync)
*pgrfBINDF |= BINDF_RESYNCHRONIZE;
if (m_pParent && (m_pParent->m_lBindFlags & DLCTL_FORCEOFFLINE))
*pgrfBINDF |= BINDF_OFFLINEOPERATION;
// clear BINDINFO but keep its size
DWORD cbSize = pbindInfo->cbSize;
ZeroMemory( pbindInfo, cbSize );
pbindInfo->cbSize = cbSize;
pbindInfo->dwBindVerb = BINDVERB_GET;
if (m_iMethod == BDU2_HEADONLY)
{
LPWSTR pwszVerb = (LPWSTR) CoTaskMemAlloc(sizeof(c_wszHeadVerb));
if (pwszVerb)
{
CopyMemory(pwszVerb, c_wszHeadVerb, sizeof(c_wszHeadVerb));
pbindInfo->dwBindVerb = BINDVERB_CUSTOM;
pbindInfo->szCustomVerb = pwszVerb;
DBG("Using 'HEAD' custom bind verb.");
}
else
{
DBG_WARN("MemAlloc failure CUrlDownload_BSC::GetBindInfo");
return E_OUTOFMEMORY;
}
}
return S_OK;
}
STDMETHODIMP CUrlDownload_BSC::OnDataAvailable(
DWORD grfBSCF,
DWORD dwSize,
FORMATETC* pfmtetc,
STGMEDIUM* pstgmed)
{
TraceMsg(TF_THISMODULE, "%d bytes on page so far (urlmon)", dwSize);
if (m_pParent)
if (FAILED(m_pParent->ProgressBytes(dwSize)))
return S_OK;
// Get the Stream passed if we want a local file (to lock the file)
// We just ignore any data in any case
if (BSCF_FIRSTDATANOTIFICATION & grfBSCF)
{
if (!m_pstm && (pstgmed->tymed==TYMED_ISTREAM) &&
(m_pszLocalFileDest || (m_iOptions & BDU2_NEEDSTREAM)))
{
m_pstm = pstgmed->pstm;
if (m_pstm)
m_pstm->AddRef();
}
}
if (!m_fSentMimeType && pfmtetc && m_pParent)
{
m_pParent->BSC_FoundMimeType(pfmtetc->cfFormat);
m_fSentMimeType = TRUE;
}
if (BSCF_LASTDATANOTIFICATION & grfBSCF)
{
DBG("cbsc: LastDataNotification");
}
return S_OK;
} // CUrlDownload_BSC::OnDataAvailable
STDMETHODIMP CUrlDownload_BSC::OnObjectAvailable(REFIID riid, IUnknown* punk)
{
return E_NOTIMPL;
}
STDMETHODIMP CUrlDownload_BSC::BeginningTransaction(
LPCWSTR szURL, LPCWSTR szHeaders,
DWORD dwReserved, LPWSTR *pszAdditionalHeaders)
{
// Add User-Agent and Accept-Language headers
DBG("CUrlDownload_BSC::BeginningTransaction returning headers");
LPCWSTR pwszAcceptLanguage;
int iUAlen=0, iALlen=0; // in chars, with \r\n, without null-term
LPWSTR pwsz;
LPCWSTR pwszUA = m_pParent ? m_pParent->GetUserAgent() : NULL;
pwszAcceptLanguage = (m_pParent) ? m_pParent->GetAcceptLanguages() : NULL;
if (pwszUA)
{
iUAlen = ARRAYSIZE(c_szUserAgentPrefix) + lstrlenW(pwszUA) + 1;
}
if (pwszAcceptLanguage)
{
iALlen = ARRAYSIZE(c_szAcceptLanguagePrefix) + lstrlenW(pwszAcceptLanguage)+1;
}
if (iUAlen || iALlen)
{
pwsz = (WCHAR *)CoTaskMemAlloc((iUAlen + iALlen + 1) * sizeof(WCHAR));
if (pwsz)
{
pwsz[0] = L'\0';
if (iUAlen)
{
StrCpyW(pwsz, c_szUserAgentPrefix);
StrCatW(pwsz, pwszUA);
StrCatW(pwsz, L"\r\n");
}
if (iALlen)
{
StrCatW(pwsz, c_szAcceptLanguagePrefix);
StrCatW(pwsz, pwszAcceptLanguage);
StrCatW(pwsz, L"\r\n");
}
ASSERT(lstrlenW(pwsz) == (iUAlen + iALlen));
*pszAdditionalHeaders = pwsz;
return S_OK;
}
}
return E_OUTOFMEMORY;
}
STDMETHODIMP CUrlDownload_BSC::OnResponse(
DWORD dwResponseCode, LPCWSTR szResponseHeaders,
LPCWSTR szRequestHeaders, LPWSTR *pszAdditionalRequestHeaders)
{
TraceMsg(TF_THISMODULE, "CUrlDownload_BSC::OnResponse - %d", dwResponseCode);
// If we sent a "HEAD" request, Urlmon will hang expecting data.
// Abort it here.
if (m_iMethod == BDU2_HEADONLY)
{
// First get the Last-Modified date from Urlmon
IWinInetHttpInfo *pInfo;
if (m_pParent
&& SUCCEEDED(m_pBinding->QueryInterface(IID_IWinInetHttpInfo, (void **)&pInfo)
&& pInfo))
{
SYSTEMTIME st;
DWORD dwSize = sizeof(st), dwZero=0;
if (SUCCEEDED(pInfo->QueryInfo(HTTP_QUERY_FLAG_SYSTEMTIME | HTTP_QUERY_LAST_MODIFIED,
(LPVOID) &st, &dwSize, &dwZero, 0)))
{
m_pParent->BSC_FoundLastModified(&st);
}
pInfo->Release();
}
Abort(); // FEATURE: return E_ABORT and handle abort internally
}
if (m_pParent)
m_pParent->m_dwResponseCode = dwResponseCode;
else
DBG_WARN("CUrlDownload_BSC::OnResponse - Parent already NULL");
return S_OK;
}
//
// IOleClientSite
//
STDMETHODIMP CUrlDownload:: SaveObject(void)
{
return E_NOTIMPL;
}
STDMETHODIMP CUrlDownload:: GetMoniker(DWORD dwAssign, DWORD dwWhichMoniker, IMoniker **ppmk)
{
DBG("CUrlDownload::GetMoniker returning failure");
return E_NOTIMPL;
}
STDMETHODIMP CUrlDownload:: GetContainer(IOleContainer **ppContainer)
{
return E_NOTIMPL;
}
STDMETHODIMP CUrlDownload:: ShowObject(void)
{
return E_NOTIMPL;
}
STDMETHODIMP CUrlDownload:: OnShowWindow(BOOL fShow)
{
return E_NOTIMPL;
}
STDMETHODIMP CUrlDownload:: RequestNewObjectLayout(void)
{
return E_NOTIMPL;
}
// ParseRefreshContent was lifted in its entirety from shdocvw\basesb.cpp
BOOL ParseRefreshContent(LPWSTR pwzContent,
UINT * puiDelay, LPWSTR pwzUrlBuf, UINT cchUrlBuf)
{
// We are parsing the following string:
//
// [ws]* [0-9]+ [ws]* ; [ws]* url [ws]* = [ws]* { ' | " } [any]* { ' | " }
//
// Netscape insists that the string begins with a delay. If not, it
// ignores the entire directive. There can be more than one URL mentioned,
// and the last one wins. An empty URL is treated the same as not having
// a URL at all. An empty URL which follows a non-empty URL resets
// the previous URL.
enum { PRC_START, PRC_DIG, PRC_DIG_WS, PRC_SEMI, PRC_SEMI_URL,
PRC_SEMI_URL_EQL, PRC_SEMI_URL_EQL_ANY };
#define ISSPACE(ch) (((ch) == 32) || ((unsigned)((ch) - 9)) <= 13 - 9)
UINT uiState = PRC_START;
UINT uiDelay = 0;
LPWSTR pwz = pwzContent;
LPWSTR pwzUrl = NULL;
UINT cchUrl = 0;
WCHAR wch, wchDel = 0;
*pwzUrlBuf = 0;
do
{
wch = *pwz;
switch (uiState)
{
case PRC_START:
if (wch >= TEXT('0') && wch <= TEXT('9'))
{
uiState = PRC_DIG;
uiDelay = wch - TEXT('0');
}
else if (!ISSPACE(wch))
goto done;
break;
case PRC_DIG:
if (wch >= TEXT('0') && wch <= TEXT('9'))
uiDelay = uiDelay * 10 + wch - TEXT('0');
else if (ISSPACE(wch))
uiState = PRC_DIG_WS;
else if (wch == TEXT(';'))
uiState = PRC_SEMI;
else
goto done;
break;
case PRC_DIG_WS:
if (wch == TEXT(';'))
uiState = PRC_SEMI;
else if (!ISSPACE(wch))
goto done;
break;
case PRC_SEMI:
if ( (wch == TEXT('u') || wch == TEXT('U'))
&& (pwz[1] == TEXT('r') || pwz[1] == TEXT('R'))
&& (pwz[2] == TEXT('l') || pwz[2] == TEXT('L')))
{
uiState = PRC_SEMI_URL;
pwz += 2;
}
else if (!ISSPACE(wch) && wch != TEXT(';'))
goto done;
break;
case PRC_SEMI_URL:
if (wch == TEXT('='))
{
uiState = PRC_SEMI_URL_EQL;
*pwzUrlBuf = 0;
}
else if (wch == TEXT(';'))
uiState = PRC_SEMI;
else if (!ISSPACE(wch))
goto done;
break;
case PRC_SEMI_URL_EQL:
if (wch == TEXT(';'))
uiState = PRC_SEMI;
else if (!ISSPACE(wch))
{
uiState = PRC_SEMI_URL_EQL_ANY;
pwzUrl = pwzUrlBuf;
cchUrl = cchUrlBuf;
if (wch == TEXT('\'')|| wch == TEXT('\"'))
wchDel = wch;
else
{
wchDel = 0;
*pwzUrl++ = wch;
cchUrl--;
}
}
break;
case PRC_SEMI_URL_EQL_ANY:
if ( !wch
|| ( wchDel && wch == wchDel)
|| (!wchDel && wch == L';'))
{
*pwzUrl = 0;
uiState = wch == TEXT(';') ? PRC_SEMI : PRC_DIG_WS;
}
else if (cchUrl > 1)
{
*pwzUrl++ = wch;
cchUrl--;
}
break;
}
++pwz;
} while (wch);
done:
*puiDelay = uiDelay;
return(uiState >= PRC_DIG);
} // ParseRefreshContent