src/TortoiseShell/ShellExt.cpp

   1 // TortoiseGit - a Windows shell extension for easy version control
   2
   3 // Copyright (C) 2003-2012 - TortoiseSVN
   4
   5 // This program is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU General Public License
   7 // as published by the Free Software Foundation; either version 2
   8 // of the License, or (at your option) any later version.
   9
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program; if not, write to the Free Software Foundation,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 #include "stdafx.h"
  20
  21 #pragma warning (disable : 4786)
  22
  23 // Initialize GUIDs (should be done only and at-least once per DLL/EXE)
  24 #include <initguid.h>
  25 #include "Guids.h"
  26
  27 #include "ShellExt.h"
  28 #include "ShellObjects.h"
  29 //#include "..\version.h"
  30 //#include "libintl.h"
  31 #undef swprintf
  32
  33 extern ShellObjects g_shellObjects;
  34
  35 // *********************** CShellExt *************************
  36 CShellExt::CShellExt(FileState state)
  37         : m_crasher(L"TortoiseGit", false)
  38 {
  39         m_State = state;
  40
  41         m_cRef = 0L;
  42         InterlockedIncrement(&g_cRefThisDll);
  43
  44         {
  45                 AutoLocker lock(g_csGlobalCOMGuard);
  46                 g_shellObjects.Insert(this);
  47         }
  48
  49         INITCOMMONCONTROLSEX used = {
  50                 sizeof(INITCOMMONCONTROLSEX),
  51                         ICC_LISTVIEW_CLASSES | ICC_WIN95_CLASSES | ICC_BAR_CLASSES | ICC_USEREX_CLASSES
  52         };
  53         InitCommonControlsEx(&used);
  54         LoadLangDll();
  55
  56         if (SysInfo::Instance().IsVistaOrLater())
  57         {
  58                 HMODULE hUxTheme = ::GetModuleHandle (_T("UXTHEME.DLL"));
  59
  60                 pfnGetBufferedPaintBits = (FN_GetBufferedPaintBits)::GetProcAddress(hUxTheme, "GetBufferedPaintBits");
  61                 pfnBeginBufferedPaint = (FN_BeginBufferedPaint)::GetProcAddress(hUxTheme, "BeginBufferedPaint");
  62                 pfnEndBufferedPaint = (FN_EndBufferedPaint)::GetProcAddress(hUxTheme, "EndBufferedPaint");
  63         }
  64 }
  65
  66 CShellExt::~CShellExt()
  67 {
  68         AutoLocker lock(g_csGlobalCOMGuard);
  69         InterlockedDecrement(&g_cRefThisDll);
  70         g_shellObjects.Erase(this);
  71 }
  72
  73 void LoadLangDll()
  74 {
  75         if ((g_langid != g_ShellCache.GetLangID())&&((g_langTimeout == 0)||(g_langTimeout < GetTickCount())))
  76         {
  77                 g_langid = g_ShellCache.GetLangID();
  78                 DWORD langId = g_langid;
  79                 TCHAR langDll[MAX_PATH*4];
  80                 HINSTANCE hInst = NULL;
  81                 TCHAR langdir[MAX_PATH] = {0};
  82                 char langdirA[MAX_PATH] = {0};
  83                 if (GetModuleFileName(g_hmodThisDll, langdir, _countof(langdir))==0)
  84                         return;
  85                 if (GetModuleFileNameA(g_hmodThisDll, langdirA, _countof(langdirA))==0)
  86                         return;
  87                 TCHAR * dirpoint = _tcsrchr(langdir, '\\');
  88                 char * dirpointA = strrchr(langdirA, '\\');
  89                 if (dirpoint)
  90                         *dirpoint = 0;
  91                 if (dirpointA)
  92                         *dirpointA = 0;
  93                 dirpoint = _tcsrchr(langdir, '\\');
  94                 dirpointA = strrchr(langdirA, '\\');
  95                 if (dirpoint)
  96                         *dirpoint = 0;
  97                 if (dirpointA)
  98                         *dirpointA = 0;
  99                 strcat_s(langdirA, "\\Languages");
 100 //              bindtextdomain ("subversion", langdirA);
 101
 102                 BOOL bIsWow = FALSE;
 103                 IsWow64Process(GetCurrentProcess(), &bIsWow);
 104
 105                 do
 106                 {
 107                         if (bIsWow)
 108                                 _stprintf_s(langDll, _T("%s\\Languages\\TortoiseProc32%d.dll"), langdir, langId);
 109                         else
 110                                 _stprintf_s(langDll, _T("%s\\Languages\\TortoiseProc%d.dll"), langdir, langId);
 111                         BOOL versionmatch = TRUE;
 112
 113                         struct TRANSARRAY
 114                         {
 115                                 WORD wLanguageID;
 116                                 WORD wCharacterSet;
 117                         };
 118
 119                         DWORD dwReserved,dwBufferSize;
 120                         dwBufferSize = GetFileVersionInfoSize((LPTSTR)langDll,&dwReserved);
 121
 122                         if (dwBufferSize > 0)
 123                         {
 124                                 LPVOID pBuffer = (void*) malloc(dwBufferSize);
 125
 126                                 if (pBuffer != (void*) NULL)
 127                                 {
 128                                         UINT        nInfoSize = 0;
 129                                         UINT        nFixedLength = 0;
 130                                         LPSTR       lpVersion = NULL;
 131                                         VOID*       lpFixedPointer;
 132                                         TRANSARRAY* lpTransArray;
 133                                         TCHAR       strLangProduktVersion[MAX_PATH];
 134
 135                                         if (GetFileVersionInfo((LPTSTR)langDll,
 136                                                 dwReserved,
 137                                                 dwBufferSize,
 138                                                 pBuffer))
 139                                         {
 140                                                 // Query the current language
 141                                                 if (VerQueryValue(      pBuffer,
 142                                                         _T("\\VarFileInfo\\Translation"),
 143                                                         &lpFixedPointer,
 144                                                         &nFixedLength))
 145                                                 {
 146                                                         lpTransArray = (TRANSARRAY*) lpFixedPointer;
 147
 148                                                         _stprintf_s(strLangProduktVersion, _T("\\StringFileInfo\\%04x%04x\\ProductVersion"),
 149                                                                 lpTransArray[0].wLanguageID, lpTransArray[0].wCharacterSet);
 150
 151                                                         if (VerQueryValue(pBuffer,
 152                                                                 (LPTSTR)strLangProduktVersion,
 153                                                                 (LPVOID *)&lpVersion,
 154                                                                 &nInfoSize))
 155                                                         {
 156                                                                 versionmatch = (_tcscmp((LPCTSTR)lpVersion, _T(STRPRODUCTVER)) == 0);
 157                                                         }
 158
 159                                                 }
 160                                         }
 161                                         free(pBuffer);
 162                                 } // if (pBuffer != (void*) NULL)
 163                         } // if (dwBufferSize > 0)
 164                         else
 165                                 versionmatch = FALSE;
 166
 167                         if (versionmatch)
 168                                 hInst = LoadLibrary(langDll);
 169                         if (hInst != NULL)
 170                         {
 171                                 if (g_hResInst != g_hmodThisDll)
 172                                         FreeLibrary(g_hResInst);
 173                                 g_hResInst = hInst;
 174                         }
 175                         else
 176                         {
 177                                 DWORD lid = SUBLANGID(langId);
 178                                 lid--;
 179                                 if (lid > 0)
 180                                 {
 181                                         langId = MAKELANGID(PRIMARYLANGID(langId), lid);
 182                                 }
 183                                 else
 184                                         langId = 0;
 185                         }
 186                 } while ((hInst == NULL) && (langId != 0));
 187                 if (hInst == NULL)
 188                 {
 189                         // either the dll for the selected language is not present, or
 190                         // it is the wrong version.
 191                         // fall back to English and set a timeout so we don't retry
 192                         // to load the language dll too often
 193                         if (g_hResInst != g_hmodThisDll)
 194                                 FreeLibrary(g_hResInst);
 195                         g_hResInst = g_hmodThisDll;
 196                         g_langid = 1033;
 197                         // set a timeout of 10 seconds
 198                         if (g_ShellCache.GetLangID() != 1033)
 199                                 g_langTimeout = GetTickCount() + 10000;
 200                 }
 201                 else
 202                         g_langTimeout = 0;
 203         } // if (g_langid != g_ShellCache.GetLangID())
 204 }
 205
 206 STDMETHODIMP CShellExt::QueryInterface(REFIID riid, LPVOID FAR *ppv)
 207 {
 208         if(ppv == 0)
 209                 return E_POINTER;
 210
 211         *ppv = NULL;
 212
 213         if (IsEqualIID(riid, IID_IShellExtInit) || IsEqualIID(riid, IID_IUnknown))
 214         {
 215                 *ppv = static_cast<LPSHELLEXTINIT>(this);
 216         }
 217         else if (IsEqualIID(riid, IID_IContextMenu))
 218         {
 219                 *ppv = static_cast<LPCONTEXTMENU>(this);
 220         }
 221         else if (IsEqualIID(riid, IID_IContextMenu2))
 222         {
 223                 *ppv = static_cast<LPCONTEXTMENU2>(this);
 224         }
 225         else if (IsEqualIID(riid, IID_IContextMenu3))
 226         {
 227                 *ppv = static_cast<LPCONTEXTMENU3>(this);
 228         }
 229         else if (IsEqualIID(riid, IID_IShellIconOverlayIdentifier))
 230         {
 231                 *ppv = static_cast<IShellIconOverlayIdentifier*>(this);
 232         }
 233         else if (IsEqualIID(riid, IID_IShellPropSheetExt))
 234         {
 235                 *ppv = static_cast<LPSHELLPROPSHEETEXT>(this);
 236         }
 237         else if (IsEqualIID(riid, IID_IColumnProvider))
 238         {
 239                 *ppv = static_cast<IColumnProvider*>(this);
 240         }
 241         else if (IsEqualIID(riid, IID_IShellCopyHook))
 242         {
 243                 *ppv = static_cast<ICopyHook*>(this);
 244         }
 245         else
 246         {
 247                 return E_NOINTERFACE;
 248         }
 249
 250         AddRef();
 251         return S_OK;
 252 }
 253
 254 STDMETHODIMP_(ULONG) CShellExt::AddRef()
 255 {
 256         return ++m_cRef;
 257 }
 258
 259 STDMETHODIMP_(ULONG) CShellExt::Release()
 260 {
 261         if (--m_cRef)
 262                 return m_cRef;
 263
 264         delete this;
 265
 266         return 0L;
 267 }
 268
 269 // IPersistFile members
 270 STDMETHODIMP CShellExt::GetClassID(CLSID *pclsid)
 271 {
 272         if(pclsid == 0)
 273                 return E_POINTER;
 274         *pclsid = CLSID_Tortoisegit_UNCONTROLLED;
 275         return S_OK;
 276 }
 277
 278 STDMETHODIMP CShellExt::Load(LPCOLESTR /*pszFileName*/, DWORD /*dwMode*/)
 279 {
 280         return S_OK;
 281 }
 282
 283 // ICopyHook member
 284 UINT __stdcall CShellExt::CopyCallback(HWND hWnd, UINT wFunc, UINT wFlags, LPCTSTR pszSrcFile, DWORD dwSrcAttribs, LPCTSTR pszDestFile, DWORD dwDestAttribs)
 285 {
 286         __try
 287         {
 288                 return CopyCallback_Wrap(hWnd, wFunc, wFlags, pszSrcFile, dwSrcAttribs, pszDestFile, dwDestAttribs);
 289         }
 290         __except(CCrashReport::Instance().SendReport(GetExceptionInformation()))
 291         {
 292         }
 293         return IDYES;
 294 }
 295
 296 UINT __stdcall CShellExt::CopyCallback_Wrap(HWND /*hWnd*/, UINT wFunc, UINT /*wFlags*/, LPCTSTR pszSrcFile, DWORD /*dwSrcAttribs*/, LPCTSTR /*pszDestFile*/, DWORD /*dwDestAttribs*/)
 297 {
 298         if (wFunc == FO_COPY)
 299                 return IDYES;   // copying is not a problem for us
 300
 301         m_remoteCacheLink.ReleaseLockForPath(CTGitPath(pszSrcFile));
 302         // we could now wait a little bit to give the cache time to release the handles.
 303         // but the explorer/shell already retries any action for about two seconds
 304         // if it first fails. So if the cache hasn't released the handle yet, the explorer
 305         // will retry anyway, so we just leave here immediately.
 306         return IDYES;
 307 }