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409 lines
11 KiB
409 lines
11 KiB
/*++
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Copyright (c) 2000-2002 Microsoft Corporation
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Module Name:
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AOLFindBundledInstaller_Shim.cpp
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Abstract:
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This shim is to provide a way to verify existance of
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America Online bundled in OEM machines when user runs older
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version of AOL/CS program (waol.exe or wcs2000.exe) or setup.
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If it exists, it will provide Apphelp dialog to tell user that
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there is newer America Online installer available.
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If user chose "Run this program", shim will launch the bundled installer.
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If user chose "Cancel", then shim will continue with current process.
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Apphelp dialog only get displayed if LocateInstaller function says to do so.
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History:
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04/30/2001 markder Created
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05/16/2001 andyseti Implemented LocateInstaller and ApphelpShowDialog.
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03/07/2002 robkenny Security changes
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--*/
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#include "precomp.h"
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#include <Softpub.h>
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#include <WinCrypt.h>
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#include <WinTrust.h>
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#include "AOLFindBundledInstaller_AOLCode.h"
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IMPLEMENT_SHIM_BEGIN(AOLFindBundledInstaller)
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#include "ShimHookMacro.h"
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#include "shimdb.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(GetCommandLineA)
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APIHOOK_ENUM_ENTRY(GetStartupInfoA)
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APIHOOK_ENUM_ENTRY(GetModuleFileNameA)
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APIHOOK_ENUM_ENTRY(CreateWindowExA)
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APIHOOK_ENUM_END
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#define MAX_PARAM 4
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BOOL g_bDoneIt = FALSE;
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CString g_csHTMLHelpID_BundledFound;
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CString g_csHTMLHelpID_Incompatible;
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DWORD g_dwHTMLHelpID_BundledFound = 0;
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DWORD g_dwHTMLHelpID_Incompatible = 0;
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CString g_csAppName;
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CString g_csGUID;
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#define APPHELP_DIALOG_FAILED ((DWORD)-1)
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// from sdbapi\shimdb.w
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/*
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typedef struct _APPHELP_INFO {
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//
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// html help id mode
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//
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DWORD dwHtmlHelpID; // html help id
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DWORD dwSeverity; // must have
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LPCTSTR lpszAppName;
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GUID guidID; // entry guid
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//
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// Conventional mode
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//
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TAGID tiExe; // the TAGID of the exe entry within the DB
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GUID guidDB; // the guid of the DB that has the EXE entry
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BOOL bOfflineContent;
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BOOL bUseHTMLHelp;
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LPCTSTR lpszChmFile;
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LPCTSTR lpszDetailsFile;
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} APPHELP_INFO, *PAPPHELP_INFO;
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*/
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typedef BOOL (*_pfn_ApphelpShowDialog)(
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IN PAPPHELP_INFO pAHInfo, // the info necessary to find the apphelp data
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IN PHANDLE phProcess // [optional] returns the process handle of
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// the process displaying the apphelp.
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// When the process completes, the return value
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// (from GetExitCodeProcess()) will be zero
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// if the app should not run, or non-zero
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// if it should run.
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);
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/*++
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Parse the command line.
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The format of the command line is:
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MODE:AOL|CS;APPNAME:xxxxxx;HTMLHELPID:99999;GUID:xxxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxxx
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--*/
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BOOL
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ParseCommandLine(
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LPCSTR lpCommandLine
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)
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{
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int iTotalParam = 0;
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CSTRING_TRY
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{
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CStringToken csTok(lpCommandLine, L" ;");
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CString token;
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while (csTok.GetToken(token))
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{
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CStringToken csSingleTok(token, L":");
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CString csParam;
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CString csValue;
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csSingleTok.GetToken(csParam);
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csSingleTok.GetToken(csValue);
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if (csParam.CompareNoCase(L"APPNAME") == 0)
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{
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g_csAppName = csValue;
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++iTotalParam;
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}
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if (csParam.CompareNoCase(L"HTMLHELPID_BUNDLED") == 0)
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{
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g_csHTMLHelpID_BundledFound = csValue;
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g_dwHTMLHelpID_BundledFound = _wtol(csValue.Get());
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++iTotalParam;
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}
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if (csParam.CompareNoCase(L"HTMLHELPID_INCOMPAT") == 0)
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{
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g_csHTMLHelpID_Incompatible = csValue;
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g_dwHTMLHelpID_Incompatible = _wtol(csValue.Get());
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++iTotalParam;
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}
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if (csParam.CompareNoCase(L"GUID") == 0)
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{
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g_csGUID = csValue;
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++iTotalParam;
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}
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}
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}
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CSTRING_CATCH
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{
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DPF("FindAOL", eDbgLevelInfo, "Error in CString.Exiting\n");
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return FALSE;
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}
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if (iTotalParam < MAX_PARAM)
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{
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DPF("FindAOL", eDbgLevelInfo, "Total Parameter = %d is less than = %d\n",iTotalParam, MAX_PARAM);
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return FALSE;
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}
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//
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// Dump results of command line parse
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//
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DPF("FindAOL", eDbgLevelInfo, "===================================\n");
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DPF("FindAOL", eDbgLevelInfo, " FindAOL \n");
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DPF("FindAOL", eDbgLevelInfo, "===================================\n");
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DPF("FindAOL", eDbgLevelInfo, "COMMAND_LINE(%s)", lpCommandLine);
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DPF("FindAOL", eDbgLevelInfo, "-----------------------------------\n");
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DPF("FindAOL", eDbgLevelInfo, "APPNAME = %S\n", g_csAppName);
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DPF("FindAOL", eDbgLevelInfo, "HTMLHELPID_BUNDLED = %S\n", g_csHTMLHelpID_BundledFound);
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DPF("FindAOL", eDbgLevelInfo, "HTMLHELPID_INCOMPAT = %S\n", g_csHTMLHelpID_Incompatible);
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DPF("FindAOL", eDbgLevelInfo, "GUID = %S\n", g_csGUID);
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DPF("FindAOL", eDbgLevelInfo, "-----------------------------------\n");
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return TRUE;
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}
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BOOL InvokeApphelpShowDialog(DWORD dwHTMLHelpID)
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{
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_pfn_ApphelpShowDialog pfnApphelpShowDialog = NULL;
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APPHELP_INFO AHInfo = { 0 };
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HMODULE hAppHelpDLL = NULL;
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hAppHelpDLL = LoadLibrary(L"APPHELP.DLL");
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DPF("FindAOL", eDbgLevelWarning, "Apphelp:%d\n",hAppHelpDLL );
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if (hAppHelpDLL)
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{
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pfnApphelpShowDialog = (_pfn_ApphelpShowDialog) GetProcAddress(hAppHelpDLL, "ApphelpShowDialog");
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if (pfnApphelpShowDialog == NULL)
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{
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DPF("FindAOL", eDbgLevelInfo, "Unable to get APPHELP!ApphelpShowDialog procedure address.\n");
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return FALSE;
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}
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AHInfo.dwHtmlHelpID = dwHTMLHelpID;
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AHInfo.dwSeverity = APPHELP_NOBLOCK;
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AHInfo.lpszAppName = g_csAppName.Get();
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AHInfo.bPreserveChoice = TRUE;
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UNICODE_STRING ustrGuid;
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NTSTATUS ntstatus;
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RtlInitUnicodeString(&ustrGuid, g_csGUID.Get());
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ntstatus = RtlGUIDFromString(&ustrGuid, &AHInfo.guidID);
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if (NT_SUCCESS(ntstatus)==FALSE)
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{
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DPF("FindAOL", eDbgLevelInfo, "RtlGUIDFromString failed!\n");
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return FALSE;
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}
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if (pfnApphelpShowDialog(&AHInfo,NULL))
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{
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DPF("FindAOL", eDbgLevelInfo, "!\n");
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}
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else
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{
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DPF("FindAOL", eDbgLevelInfo, "RtlGUIDFromString FAILED!\n");
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return FALSE;
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}
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}
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else
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{
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DPF("FindAOL", eDbgLevelInfo, "LoadLibrary FAILED!\n");
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return FALSE;
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}
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return TRUE;
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}
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void DoIt()
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{
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CHAR lpszInstaller[MAX_PATH];
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BOOL bBundledInstallerFound = FALSE;
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BOOL bDisplayAppHelpDialog = FALSE;
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BOOL bKillCurrentProcess = FALSE;
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BOOL bLaunchBundledInstaller = FALSE;
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BOOL bReturnValue = FALSE;
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UINT uiWinExecReturned = 0;
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if (!g_bDoneIt) {
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if (!ParseCommandLine(COMMAND_LINE)) {
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goto eh;
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}
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bBundledInstallerFound = LocateInstaller(lpszInstaller, MAX_PATH, &bDisplayAppHelpDialog);
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if (bBundledInstallerFound) {
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DPF("FindAOL", eDbgLevelWarning, "Bundled installer found in %s.\n",lpszInstaller);
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}
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if (bBundledInstallerFound == FALSE && bDisplayAppHelpDialog == FALSE) {
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DPF("FindAOL", eDbgLevelWarning, "Bundled installer not found. Let client run normally.\n");
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goto eh;
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}
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if (bBundledInstallerFound == FALSE && bDisplayAppHelpDialog == TRUE) {
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bReturnValue = InvokeApphelpShowDialog(g_dwHTMLHelpID_Incompatible);
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// if user chose Cancel button, then just kill current process.
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if (FALSE == bReturnValue) {
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bKillCurrentProcess = TRUE;
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}
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}
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if (bBundledInstallerFound == TRUE && bDisplayAppHelpDialog == TRUE) {
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bReturnValue = InvokeApphelpShowDialog(g_dwHTMLHelpID_BundledFound);
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// if user chose Continue button, then launch bundled installer.
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if (TRUE == bReturnValue) {
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bKillCurrentProcess = TRUE;
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bLaunchBundledInstaller = TRUE;
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}
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}
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if (bBundledInstallerFound == TRUE && bDisplayAppHelpDialog == FALSE) {
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// Launch bundled installer.
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bKillCurrentProcess = TRUE;
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bLaunchBundledInstaller = TRUE;
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}
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if (bLaunchBundledInstaller) {
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// launch bundled installer instead
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uiWinExecReturned = WinExec(lpszInstaller, SW_SHOW);
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if (uiWinExecReturned <= 31) {
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DPF("FindAOL", eDbgLevelError, "Can not launch program. Error: %d\n",GetLastError());
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goto eh;
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}
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}
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if (bKillCurrentProcess) {
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ExitProcess(0);
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}
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}
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eh:
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g_bDoneIt = TRUE;
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}
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LPSTR
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APIHOOK(GetCommandLineA)()
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{
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DoIt();
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return ORIGINAL_API(GetCommandLineA)();
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}
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VOID
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APIHOOK(GetStartupInfoA)(
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LPSTARTUPINFOA lpStartupInfo)
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{
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DoIt();
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ORIGINAL_API(GetStartupInfoA)(lpStartupInfo);
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}
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DWORD
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APIHOOK(GetModuleFileNameA)(
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HMODULE hModule, // handle to module
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LPSTR lpFilename, // file name of module
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DWORD nSize // size of buffer
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)
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{
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DoIt();
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return ORIGINAL_API(GetModuleFileNameA)(hModule, lpFilename, nSize);
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}
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HWND
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APIHOOK(CreateWindowExA)(
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DWORD dwExStyle,
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LPCSTR lpClassName,
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LPCSTR lpWindowName,
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DWORD dwStyle,
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int x,
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int y,
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int nWidth,
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int nHeight,
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HWND hWndParent,
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HMENU hMenu,
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HINSTANCE hInstance,
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LPVOID lpParam
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)
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{
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DoIt();
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return ORIGINAL_API(CreateWindowExA)(
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dwExStyle,
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lpClassName,
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lpWindowName,
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dwStyle,
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x,
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y,
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nWidth,
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nHeight,
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hWndParent,
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hMenu,
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hInstance,
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lpParam );
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}
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/*++
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Register hooked functions
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--*/
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HOOK_BEGIN
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APIHOOK_ENTRY(KERNEL32.DLL, GetCommandLineA)
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APIHOOK_ENTRY(KERNEL32.DLL, GetStartupInfoA)
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APIHOOK_ENTRY(KERNEL32.DLL, GetModuleFileNameA)
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APIHOOK_ENTRY(USER32.DLL, CreateWindowExA)
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HOOK_END
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IMPLEMENT_SHIM_END
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