dll/win32/msxml3/main.c

   1 /*
   2  *    MSXML Class Factory
   3  *
   4  * Copyright 2002 Lionel Ulmer
   5  * Copyright 2005 Mike McCormack
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #define COBJMACROS
  26
  27 #include <stdarg.h>
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "winuser.h"
  31 #include "ole2.h"
  32 #include "msxml.h"
  33 #include "msxml2.h"
  34
  35 #include "wine/unicode.h"
  36 #include "wine/debug.h"
  37 #include "wine/library.h"
  38
  39 #include "msxml_private.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(msxml);
  42
  43 #ifdef HAVE_LIBXML2
  44
  45 /* Support for loading xml files from a Wine Windows drive */
  46 static int wineXmlMatchCallback (char const * filename)
  47 {
  48     int nRet = 0;
  49
  50     TRACE("%s\n", filename);
  51
  52     /*
  53      * We will deal with loading XML files from the file system
  54      *   We only care about files that linux cannot find.
  55      *    e.g. C:,D: etc
  56      */
  57     if(isalpha(filename[0]) && filename[1] == ':')
  58         nRet = 1;
  59
  60     return nRet;
  61 }
  62
  63 static void *wineXmlOpenCallback (char const * filename)
  64 {
  65     BSTR sFilename = bstr_from_xmlChar( (const xmlChar*)filename);
  66     HANDLE hFile;
  67
  68     TRACE("%s\n", debugstr_w(sFilename));
  69
  70     hFile = CreateFileW(sFilename, GENERIC_READ,FILE_SHARE_READ, NULL,
  71                        OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL, NULL);
  72     if(hFile == INVALID_HANDLE_VALUE) hFile = 0;
  73     SysFreeString(sFilename);
  74     return hFile;
  75 }
  76
  77 static int wineXmlReadCallback(void * context, char * buffer, int len)
  78 {
  79     DWORD dwBytesRead;
  80
  81     TRACE("%p %s %d\n", context, buffer, len);
  82
  83     if ((context == NULL) || (buffer == NULL))
  84         return(-1);
  85
  86     if(!ReadFile( context, buffer,len, &dwBytesRead, NULL))
  87     {
  88         ERR("Failed to read file\n");
  89         return -1;
  90     }
  91
  92     TRACE("Read %d\n", dwBytesRead);
  93
  94     return dwBytesRead;
  95 }
  96
  97 static int wineXmlFileCloseCallback (void * context)
  98 {
  99     return CloseHandle(context) ? 0 : -1;
 100 }
 101
 102 #endif
 103
 104
 105 HRESULT WINAPI DllCanUnloadNow(void)
 106 {
 107     return S_FALSE;
 108 }
 109
 110
 111 void* libxslt_handle = NULL;
 112 #ifdef SONAME_LIBXSLT
 113 # define DECL_FUNCPTR(f) typeof(f) * p##f = NULL
 114 DECL_FUNCPTR(xsltApplyStylesheet);
 115 DECL_FUNCPTR(xsltCleanupGlobals);
 116 DECL_FUNCPTR(xsltFreeStylesheet);
 117 DECL_FUNCPTR(xsltParseStylesheetDoc);
 118 # undef MAKE_FUNCPTR
 119 #endif
 120
 121 static void init_libxslt(void)
 122 {
 123 #ifdef SONAME_LIBXSLT
 124     void (*pxsltInit)(void); /* Missing in libxslt <= 1.1.14 */
 125
 126     libxslt_handle = wine_dlopen(SONAME_LIBXSLT, RTLD_NOW, NULL, 0);
 127     if (!libxslt_handle)
 128         return;
 129
 130 #define LOAD_FUNCPTR(f, needed) if ((p##f = wine_dlsym(libxslt_handle, #f, NULL, 0)) == NULL && needed) { WARN("Can't find symbol %s\n", #f); goto sym_not_found; }
 131     LOAD_FUNCPTR(xsltInit, 0);
 132     LOAD_FUNCPTR(xsltApplyStylesheet, 1);
 133     LOAD_FUNCPTR(xsltCleanupGlobals, 1);
 134     LOAD_FUNCPTR(xsltFreeStylesheet, 1);
 135     LOAD_FUNCPTR(xsltParseStylesheetDoc, 1);
 136 #undef LOAD_FUNCPTR
 137
 138     if (pxsltInit)
 139         pxsltInit();
 140     return;
 141
 142  sym_not_found:
 143     wine_dlclose(libxslt_handle, NULL, 0);
 144     libxslt_handle = NULL;
 145 #endif
 146 }
 147
 148
 149 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
 150 {
 151     switch(fdwReason)
 152     {
 153     case DLL_PROCESS_ATTACH:
 154 #ifdef HAVE_LIBXML2
 155         xmlInitParser();
 156
 157         /* Set the default indent character to a single tab,
 158            for this thread and as default for new threads */
 159         xmlTreeIndentString = "\t";
 160         xmlThrDefTreeIndentString("\t");
 161
 162          /* Register callbacks for loading XML files */
 163         if(xmlRegisterInputCallbacks(wineXmlMatchCallback, wineXmlOpenCallback,
 164                             wineXmlReadCallback, wineXmlFileCloseCallback) == -1)
 165             WARN("Failed to register callbacks\n");
 166
 167 #endif
 168         init_libxslt();
 169         DisableThreadLibraryCalls(hInstDLL);
 170         break;
 171     case DLL_PROCESS_DETACH:
 172 #ifdef SONAME_LIBXSLT
 173         if (libxslt_handle)
 174         {
 175             pxsltCleanupGlobals();
 176             wine_dlclose(libxslt_handle, NULL, 0);
 177             libxslt_handle = NULL;
 178         }
 179 #endif
 180 #ifdef HAVE_LIBXML2
 181         /* Restore default Callbacks */
 182         xmlCleanupInputCallbacks();
 183         xmlRegisterDefaultInputCallbacks();
 184
 185         xmlCleanupParser();
 186 #endif
 187         release_typelib();
 188         break;
 189     }
 190     return TRUE;
 191 }