third_party/npapi/npspy/common/npp_gate.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
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  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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  13  * License.
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  15  * The Original Code is mozilla.org code.
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Netscape Communications Corporation.
  19  * Portions created by the Initial Developer are Copyright (C) 1998
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
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  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 #include "xp.h"
  39
  40 #include "epmanager.h"
  41 #include "plugload.h"
  42 #include "logger.h"
  43
  44 extern NPNetscapeFuncs NPNFuncs;
  45 extern Logger * logger;
  46
  47 NPNetscapeFuncs fakeNPNFuncs;
  48
  49 extern NPPEntryPointManager * epManager;
  50
  51 jref NPP_GetJavaClass (void)
  52 {
  53   if(logger)
  54     logger->logCall(action_npp_get_java_class);
  55
  56   if(logger)
  57     logger->logReturn(action_npp_get_java_class);
  58   return NULL;
  59 }
  60
  61 NPError NPP_New(NPMIMEType pluginType,
  62                 NPP instance,
  63                 uint16 mode,
  64                 int16 argc,
  65                 char* argn[],
  66                 char* argv[],
  67                 NPSavedData* saved)
  68 {
  69   if(epManager == NULL)
  70     return NPERR_GENERIC_ERROR;
  71
  72   if(instance == NULL)
  73     return NPERR_INVALID_INSTANCE_ERROR;
  74
  75   if(logger)
  76     logger->logCall(action_npp_new, (DWORD)pluginType, (DWORD)instance, (DWORD)mode, (DWORD)argc, (DWORD)argn, (DWORD)argv, (DWORD)saved);
  77
  78 /* now action begins */
  79
  80   if(NULL == epManager->findEntryPointsForPlugin(pluginType))
  81   {
  82     // if it is first time in, we don't have it yet
  83     // scan plugins dir for available plugins to see if we have anything
  84     // for the given mimetype
  85     XP_HLIB hLib = LoadRealPlugin(pluginType);
  86     if(!hLib)
  87     {
  88       // what do we do if we don't?
  89       return NPERR_GENERIC_ERROR;
  90     }
  91
  92     NP_GETENTRYPOINTS real_NP_GetEntryPoints = (NP_GETENTRYPOINTS)XP_GetSymbol(hLib, "NP_GetEntryPoints");
  93     if(!real_NP_GetEntryPoints)
  94       return NPERR_GENERIC_ERROR;
  95
  96     NP_INITIALIZE real_NP_Initialize = (NP_INITIALIZE)XP_GetSymbol(hLib, "NP_Initialize");
  97     if(!real_NP_Initialize)
  98       return NPERR_GENERIC_ERROR;
  99
 100     NP_SHUTDOWN real_NP_Shutdown = (NP_SHUTDOWN)XP_GetSymbol(hLib, "NP_Shutdown");
 101     if(!real_NP_Shutdown)
 102       return NPERR_GENERIC_ERROR;
 103
 104     // fill callbacks structs
 105     NPPluginFuncs realNPPFuncs;
 106     memset(&realNPPFuncs, 0, sizeof(NPPluginFuncs));
 107     realNPPFuncs.size = sizeof(NPPluginFuncs);
 108
 109     real_NP_GetEntryPoints(&realNPPFuncs);
 110
 111     if(logger)
 112       logger->logSPY_NP_GetEntryPoints(&realNPPFuncs);
 113
 114     // store the table with the entry point manager
 115     epManager->createEntryPointsForPlugin(pluginType, &realNPPFuncs, real_NP_Shutdown, hLib);
 116
 117     // inform the plugin about our entry point it should call
 118     memset((void *)&fakeNPNFuncs, 0, sizeof(fakeNPNFuncs));
 119
 120     fakeNPNFuncs.size             = sizeof(fakeNPNFuncs);
 121     fakeNPNFuncs.version          = NPNFuncs.version;
 122     fakeNPNFuncs.geturlnotify     = NPN_GetURLNotify;
 123     fakeNPNFuncs.geturl           = NPN_GetURL;
 124     fakeNPNFuncs.posturlnotify    = NPN_PostURLNotify;
 125     fakeNPNFuncs.posturl          = NPN_PostURL;
 126     fakeNPNFuncs.requestread      = NPN_RequestRead;
 127     fakeNPNFuncs.newstream        = NPN_NewStream;
 128     fakeNPNFuncs.write            = NPN_Write;
 129     fakeNPNFuncs.destroystream    = NPN_DestroyStream;
 130     fakeNPNFuncs.status           = NPN_Status;
 131     fakeNPNFuncs.uagent           = NPN_UserAgent;
 132     fakeNPNFuncs.memalloc         = NPN_MemAlloc;
 133     fakeNPNFuncs.memfree          = NPN_MemFree;
 134     fakeNPNFuncs.memflush         = NPN_MemFlush;
 135     fakeNPNFuncs.reloadplugins    = NPN_ReloadPlugins;
 136     fakeNPNFuncs.getJavaEnv       = NPN_GetJavaEnv;
 137     fakeNPNFuncs.getJavaPeer      = NPN_GetJavaPeer;
 138     fakeNPNFuncs.getvalue         = NPN_GetValue;
 139     fakeNPNFuncs.setvalue         = NPN_SetValue;
 140     fakeNPNFuncs.invalidaterect   = NPN_InvalidateRect;
 141     fakeNPNFuncs.invalidateregion = NPN_InvalidateRegion;
 142     fakeNPNFuncs.forceredraw      = NPN_ForceRedraw;
 143     fakeNPNFuncs.getstringidentifier    = NPN_GetStringIdentifier;
 144     fakeNPNFuncs.getstringidentifiers   = NPN_GetStringIdentifiers;
 145     fakeNPNFuncs.getintidentifier       = NPN_GetIntIdentifier;
 146     fakeNPNFuncs.identifierisstring     = NPN_IdentifierIsString;
 147     fakeNPNFuncs.utf8fromidentifier     = NPN_UTF8FromIdentifier;
 148     fakeNPNFuncs.intfromidentifier      = NPN_IntFromIdentifier;
 149     fakeNPNFuncs.createobject           = NPN_CreateObject;
 150     fakeNPNFuncs.retainobject           = NPN_RetainObject;
 151     fakeNPNFuncs.releaseobject          = NPN_ReleaseObject;
 152     fakeNPNFuncs.invoke                 = NPN_Invoke;
 153     fakeNPNFuncs.invokeDefault          = NPN_InvokeDefault;
 154     fakeNPNFuncs.evaluate               = NPN_Evaluate;
 155     fakeNPNFuncs.getproperty            = NPN_GetProperty;
 156     fakeNPNFuncs.setproperty            = NPN_SetProperty;
 157     fakeNPNFuncs.removeproperty         = NPN_RemoveProperty;
 158     fakeNPNFuncs.hasproperty            = NPN_HasProperty;
 159     fakeNPNFuncs.hasmethod              = NPN_HasMethod;
 160     fakeNPNFuncs.releasevariantvalue    = NPN_ReleaseVariantValue;
 161     fakeNPNFuncs.setexception           = NPN_SetException;
 162     fakeNPNFuncs.pushpopupsenabledstate = NPN_PushPopupsEnabledState;
 163     fakeNPNFuncs.poppopupsenabledstate  = NPN_PopPopupsEnabledState;
 164     fakeNPNFuncs.enumerate              = NPN_Enumerate;
 165
 166     if(logger)
 167       logger->logSPY_NP_Initialize();
 168
 169     real_NP_Initialize(&fakeNPNFuncs);
 170   }
 171
 172   NPError rv = epManager->callNPP_New(pluginType, instance, mode, argc, argn, argv, saved);
 173
 174   if(logger)
 175     logger->logReturn(action_npp_new);
 176
 177   return rv;
 178 }
 179
 180 NPError NPP_Destroy (NPP instance, NPSavedData** save)
 181 {
 182   if(epManager == NULL)
 183     return NPERR_GENERIC_ERROR;
 184
 185   if(instance == NULL)
 186     return NPERR_INVALID_INSTANCE_ERROR;
 187
 188   BOOL last = FALSE;
 189
 190   if(logger)
 191     logger->logCall(action_npp_destroy, (DWORD)instance, (DWORD)save);
 192
 193   NPError rv = epManager->callNPP_Destroy(instance, save, &last);
 194
 195   if(logger)
 196     logger->logReturn(action_npp_destroy, rv);
 197
 198   if(last && logger->bSPALID)
 199   {
 200     // this will log it
 201     epManager->callNP_Shutdown(instance);
 202
 203     XP_HLIB hLib = NULL;
 204
 205     epManager->removeEntryPointsForPlugin(instance, &hLib);
 206
 207     UnloadRealPlugin(hLib);
 208   }
 209   return rv;
 210 }
 211
 212 NPError NPP_SetWindow (NPP instance, NPWindow* pNPWindow)
 213 {
 214   if(epManager == NULL)
 215     return NPERR_GENERIC_ERROR;
 216
 217   if(instance == NULL)
 218     return NPERR_INVALID_INSTANCE_ERROR;
 219
 220   if(logger)
 221     logger->logCall(action_npp_set_window, (DWORD)instance, (DWORD)pNPWindow);
 222
 223   NPError rv = epManager->callNPP_SetWindow(instance, pNPWindow);
 224
 225   if(logger)
 226     logger->logReturn(action_npp_set_window, rv);
 227
 228   return rv;
 229 }
 230
 231 NPError NPP_NewStream(NPP instance,
 232                       NPMIMEType type,
 233                       NPStream* stream,
 234                       NPBool seekable,
 235                       uint16* stype)
 236 {
 237   if(epManager == NULL)
 238     return NPERR_GENERIC_ERROR;
 239
 240   if(instance == NULL)
 241     return NPERR_INVALID_INSTANCE_ERROR;
 242
 243   if(logger)
 244     logger->logCall(action_npp_new_stream, (DWORD)instance, (DWORD)type, (DWORD)stream, (DWORD)seekable, (DWORD)stype);
 245
 246   NPError rv = epManager->callNPP_NewStream(instance, type, stream, seekable, stype);
 247
 248   if(logger)
 249     logger->logReturn(action_npp_new_stream, rv);
 250
 251   return rv;
 252 }
 253
 254 int32 NPP_WriteReady (NPP instance, NPStream *stream)
 255 {
 256   if(epManager == NULL)
 257     return NPERR_GENERIC_ERROR;
 258
 259   if(instance == NULL)
 260     return NPERR_INVALID_INSTANCE_ERROR;
 261
 262   if(logger)
 263     logger->logCall(action_npp_write_ready, (DWORD)instance, (DWORD)stream);
 264
 265   int32 rv = epManager->callNPP_WriteReady(instance, stream);
 266
 267   if(logger)
 268     logger->logReturn(action_npp_write_ready, rv);
 269
 270   return rv;
 271 }
 272
 273 int32 NPP_Write (NPP instance, NPStream *stream, int32 offset, int32 len, void *buffer)
 274 {
 275   if(epManager == NULL)
 276     return NPERR_GENERIC_ERROR;
 277
 278   if(instance == NULL)
 279     return NPERR_INVALID_INSTANCE_ERROR;
 280
 281   if(logger)
 282     logger->logCall(action_npp_write, (DWORD)instance, (DWORD)stream, (DWORD)offset, (DWORD)len, (DWORD)buffer);
 283
 284   int32 rv = epManager->callNPP_Write(instance, stream, offset, len, buffer);
 285
 286   if(logger)
 287     logger->logReturn(action_npp_write, rv);
 288
 289   return rv;
 290 }
 291
 292 NPError NPP_DestroyStream (NPP instance, NPStream *stream, NPError reason)
 293 {
 294   if(epManager == NULL)
 295     return NPERR_GENERIC_ERROR;
 296
 297   if(instance == NULL)
 298     return NPERR_INVALID_INSTANCE_ERROR;
 299
 300   if(logger)
 301     logger->logCall(action_npp_destroy_stream, (DWORD)instance, (DWORD)stream, (DWORD)reason);
 302
 303   NPError rv = epManager->callNPP_DestroyStream(instance, stream, reason);
 304
 305   if(logger)
 306     logger->logReturn(action_npp_destroy_stream, rv);
 307
 308   return rv;
 309 }
 310
 311 void NPP_StreamAsFile (NPP instance, NPStream* stream, const char* fname)
 312 {
 313   if(epManager == NULL)
 314     return;
 315
 316   if(instance == NULL)
 317     return;
 318
 319   if(logger)
 320     logger->logCall(action_npp_stream_as_file, (DWORD)instance, (DWORD)stream, (DWORD)fname);
 321
 322   epManager->callNPP_StreamAsFile(instance, stream, fname);
 323 }
 324
 325 void NPP_Print (NPP instance, NPPrint* printInfo)
 326 {
 327   if(epManager == NULL)
 328     return;
 329
 330   if(logger)
 331     logger->logCall(action_npp_print, (DWORD)instance, (DWORD)printInfo);
 332
 333   epManager->callNPP_Print(instance, printInfo);
 334 }
 335
 336 void NPP_URLNotify(NPP instance, const char* url, NPReason reason, void* notifyData)
 337 {
 338   if(epManager == NULL)
 339     return;
 340
 341   if(instance == NULL)
 342     return;
 343
 344   if(logger)
 345     logger->logCall(action_npp_url_notify, (DWORD)instance, (DWORD)url, (DWORD)reason, (DWORD)notifyData);
 346
 347   epManager->callNPP_URLNotify(instance, url, reason, notifyData);
 348 }
 349
 350 NPError NPP_GetValue(NPP instance, NPPVariable variable, void *value)
 351 {
 352   if(epManager == NULL)
 353     return NPERR_GENERIC_ERROR;
 354
 355   if(instance == NULL)
 356     return NPERR_INVALID_INSTANCE_ERROR;
 357
 358   if(logger)
 359     logger->logCall(action_npp_get_value, (DWORD)instance, (DWORD)variable, (DWORD)value);
 360
 361   NPError rv = epManager->callNPP_GetValue(instance, variable, value);
 362
 363   if(logger)
 364     logger->logReturn(action_npp_get_value, rv);
 365
 366   return rv;
 367 }
 368
 369 NPError NPP_SetValue(NPP instance, NPNVariable variable, void *value)
 370 {
 371   if(epManager == NULL)
 372     return NPERR_GENERIC_ERROR;
 373
 374   if(instance == NULL)
 375     return NPERR_INVALID_INSTANCE_ERROR;
 376
 377   if(logger)
 378     logger->logCall(action_npp_set_value, (DWORD)instance, (DWORD)variable, (DWORD)value);
 379
 380   NPError rv = epManager->callNPP_SetValue(instance, variable, value);
 381
 382   if(logger)
 383     logger->logReturn(action_npp_set_value, rv);
 384
 385   return rv;
 386 }
 387
 388 int16   NPP_HandleEvent(NPP instance, void* event)
 389 {
 390   if(epManager == NULL)
 391     return 0;
 392
 393   if(instance == NULL)
 394     return 0;
 395
 396   if(logger)
 397     logger->logCall(action_npp_handle_event, (DWORD)instance, (DWORD)event);
 398
 399   int16 rv = epManager->callNPP_HandleEvent(instance, event);
 400
 401   if(logger)
 402     logger->logReturn(action_npp_handle_event, rv);
 403
 404   return rv;
 405 }