dlls/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 "msxml6.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 HINSTANCE MSXML_hInstance = NULL;
  44
  45 #ifdef HAVE_LIBXML2
  46
  47 void wineXmlCallbackLog(char const* caller, xmlErrorLevel lvl, char const* msg, va_list ap)
  48 {
  49     char* buf = NULL;
  50     int len = 32, needed;
  51     enum __wine_debug_class dbcl = __WINE_DBCL_ERR;
  52     switch (lvl)
  53     {
  54         case XML_ERR_NONE:
  55             dbcl = __WINE_DBCL_TRACE;
  56             break;
  57         case XML_ERR_WARNING:
  58             dbcl = __WINE_DBCL_WARN;
  59             break;
  60         default:
  61             break;
  62     }
  63
  64     if (ap)
  65     {
  66         do
  67         {
  68             heap_free(buf);
  69             buf = heap_alloc(len);
  70             needed = vsnprintf(buf, len, msg, ap);
  71             if (needed == -1)
  72                 len *= 2;
  73             else if (needed >= len)
  74                 len = needed + 1;
  75             else
  76                 needed = 0;
  77         }
  78         while (needed);
  79
  80         wine_dbg_log(dbcl, &__wine_dbch_msxml, caller, buf);
  81         heap_free(buf);
  82     }
  83     else
  84     {
  85         wine_dbg_log(dbcl, &__wine_dbch_msxml, caller, msg);
  86     }
  87 }
  88
  89 /* Support for loading xml files from a Wine Windows drive */
  90 static int wineXmlMatchCallback (char const * filename)
  91 {
  92     int nRet = 0;
  93
  94     TRACE("%s\n", filename);
  95
  96     /*
  97      * We will deal with loading XML files from the file system
  98      *   We only care about files that linux cannot find.
  99      *    e.g. C:,D: etc
 100      */
 101     if(isalpha(filename[0]) && filename[1] == ':')
 102         nRet = 1;
 103
 104     return nRet;
 105 }
 106
 107 static void *wineXmlOpenCallback (char const * filename)
 108 {
 109     BSTR sFilename = bstr_from_xmlChar( (const xmlChar*)filename);
 110     HANDLE hFile;
 111
 112     TRACE("%s\n", debugstr_w(sFilename));
 113
 114     hFile = CreateFileW(sFilename, GENERIC_READ,FILE_SHARE_READ, NULL,
 115                        OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL, NULL);
 116     if(hFile == INVALID_HANDLE_VALUE) hFile = 0;
 117     SysFreeString(sFilename);
 118     return hFile;
 119 }
 120
 121 static int wineXmlReadCallback(void * context, char * buffer, int len)
 122 {
 123     DWORD dwBytesRead;
 124
 125     TRACE("%p %s %d\n", context, buffer, len);
 126
 127     if ((context == NULL) || (buffer == NULL))
 128         return(-1);
 129
 130     if(!ReadFile( context, buffer,len, &dwBytesRead, NULL))
 131     {
 132         ERR("Failed to read file\n");
 133         return -1;
 134     }
 135
 136     TRACE("Read %d\n", dwBytesRead);
 137
 138     return dwBytesRead;
 139 }
 140
 141 static int wineXmlFileCloseCallback (void * context)
 142 {
 143     return CloseHandle(context) ? 0 : -1;
 144 }
 145
 146 #endif
 147
 148
 149 HRESULT WINAPI DllCanUnloadNow(void)
 150 {
 151     return S_FALSE;
 152 }
 153
 154
 155 void* libxslt_handle = NULL;
 156 #ifdef SONAME_LIBXSLT
 157 # define DECL_FUNCPTR(f) typeof(f) * p##f = NULL
 158 DECL_FUNCPTR(xsltApplyStylesheet);
 159 DECL_FUNCPTR(xsltCleanupGlobals);
 160 DECL_FUNCPTR(xsltFreeStylesheet);
 161 DECL_FUNCPTR(xsltParseStylesheetDoc);
 162 # undef DECL_FUNCPTR
 163 #endif
 164
 165 static void init_libxslt(void)
 166 {
 167 #ifdef SONAME_LIBXSLT
 168     void (*pxsltInit)(void); /* Missing in libxslt <= 1.1.14 */
 169
 170     libxslt_handle = wine_dlopen(SONAME_LIBXSLT, RTLD_NOW, NULL, 0);
 171     if (!libxslt_handle)
 172         return;
 173
 174 #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; }
 175     LOAD_FUNCPTR(xsltInit, 0);
 176     LOAD_FUNCPTR(xsltApplyStylesheet, 1);
 177     LOAD_FUNCPTR(xsltCleanupGlobals, 1);
 178     LOAD_FUNCPTR(xsltFreeStylesheet, 1);
 179     LOAD_FUNCPTR(xsltParseStylesheetDoc, 1);
 180 #undef LOAD_FUNCPTR
 181
 182     if (pxsltInit)
 183         pxsltInit();
 184     return;
 185
 186  sym_not_found:
 187     wine_dlclose(libxslt_handle, NULL, 0);
 188     libxslt_handle = NULL;
 189 #endif
 190 }
 191
 192
 193 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
 194 {
 195     MSXML_hInstance = hInstDLL;
 196
 197     switch(fdwReason)
 198     {
 199     case DLL_PROCESS_ATTACH:
 200 #ifdef HAVE_LIBXML2
 201         xmlInitParser();
 202
 203         /* Set the default indent character to a single tab,
 204            for this thread and as default for new threads */
 205         xmlTreeIndentString = "\t";
 206         xmlThrDefTreeIndentString("\t");
 207
 208          /* Register callbacks for loading XML files */
 209         if(xmlRegisterInputCallbacks(wineXmlMatchCallback, wineXmlOpenCallback,
 210                             wineXmlReadCallback, wineXmlFileCloseCallback) == -1)
 211             WARN("Failed to register callbacks\n");
 212
 213 #endif
 214         init_libxslt();
 215         DisableThreadLibraryCalls(hInstDLL);
 216         break;
 217     case DLL_PROCESS_DETACH:
 218 #ifdef SONAME_LIBXSLT
 219         if (libxslt_handle)
 220         {
 221             pxsltCleanupGlobals();
 222             wine_dlclose(libxslt_handle, NULL, 0);
 223             libxslt_handle = NULL;
 224         }
 225 #endif
 226 #ifdef HAVE_LIBXML2
 227         /* Restore default Callbacks */
 228         xmlCleanupInputCallbacks();
 229         xmlRegisterDefaultInputCallbacks();
 230
 231         xmlCleanupParser();
 232 #endif
 233         release_typelib();
 234         break;
 235     }
 236     return TRUE;
 237 }