bool NetscapePlugin::platformPostInitialize()
{
#if PLATFORM(GTK)
if (moduleMixesGtkSymbols(m_pluginModule->module()))
return false;
#endif
uint64_t windowID = 0;
bool needsXEmbed = false;
if (m_isWindowed) {
NPP_GetValue(NPPVpluginNeedsXEmbed, &needsXEmbed);
if (needsXEmbed) {
windowID = controller()->createPluginContainer();
if (!windowID)
return false;
} else {
notImplemented();
return false;
}
}
if (!(m_pluginDisplay = getPluginDisplay()))
return false;
NPSetWindowCallbackStruct* callbackStruct = new NPSetWindowCallbackStruct;
callbackStruct->type = 0;
m_npWindow.ws_info = callbackStruct;
if (m_isWindowed)
return platformPostInitializeWindowed(needsXEmbed, windowID);
return platformPostInitializeWindowless();
}
bool PluginPackage::load()
{
if (m_isLoaded) {
m_loadCount++;
return true;
}
GOwnPtr<gchar> finalPath(g_strdup(m_path.utf8().data()));
while (g_file_test(finalPath.get(), G_FILE_TEST_IS_SYMLINK)) {
GRefPtr<GFile> file = adoptGRef(g_file_new_for_path(finalPath.get()));
GRefPtr<GFile> dir = adoptGRef(g_file_get_parent(file.get()));
GOwnPtr<gchar> linkPath(g_file_read_link(finalPath.get(), 0));
GRefPtr<GFile> resolvedFile = adoptGRef(g_file_resolve_relative_path(dir.get(), linkPath.get()));
finalPath.set(g_file_get_path(resolvedFile.get()));
}
// No joke. If there is a netscape component in the path, go back
// to the symlink, as flash breaks otherwise.
// See http://src.chromium.org/viewvc/chrome/trunk/src/webkit/glue/plugins/plugin_list_posix.cc
GOwnPtr<gchar> baseName(g_path_get_basename(finalPath.get()));
if (!g_strcmp0(baseName.get(), "libflashplayer.so")
&& g_strstr_len(finalPath.get(), -1, "/netscape/"))
finalPath.set(g_strdup(m_path.utf8().data()));
m_module = g_module_open(finalPath.get(), G_MODULE_BIND_LOCAL);
if (!m_module) {
LOG(Plugins,"Module Load Failed :%s, Error:%s\n", (m_path.utf8()).data(), g_module_error());
return false;
}
if (moduleMixesGtkSymbols(m_module)) {
LOG(Plugins, "Ignoring module '%s' to avoid mixing GTK+ 2 and GTK+ 3 symbols.\n", m_path.utf8().data());
return false;
}
m_isLoaded = true;
if (!g_strcmp0(baseName.get(), "libflashplayer.so")) {
// Flash plugin can produce X errors that are handled by the GDK X error handler, which
// exits the process. Since we don't want to crash due to flash bugs, we install a
// custom error handler to show a warning when a X error happens without aborting.
XSetErrorHandler(webkitgtkXError);
}
NP_InitializeFuncPtr NP_Initialize = 0;
m_NPP_Shutdown = 0;
NPError npErr;
g_module_symbol(m_module, "NP_Initialize", (void**)&NP_Initialize);
g_module_symbol(m_module, "NP_Shutdown", (void**)&m_NPP_Shutdown);
if (!NP_Initialize || !m_NPP_Shutdown)
goto abort;
memset(&m_pluginFuncs, 0, sizeof(m_pluginFuncs));
m_pluginFuncs.size = sizeof(m_pluginFuncs);
initializeBrowserFuncs();
npErr = NP_Initialize(&m_browserFuncs, &m_pluginFuncs);
if (npErr != NPERR_NO_ERROR)
goto abort;
m_loadCount++;
return true;
abort:
unloadWithoutShutdown();
return false;
}
bool NetscapePluginModule::tryLoad()
{
m_module = std::make_unique<Module>(m_pluginPath);
if (!m_module->load())
return false;
#if PLATFORM(GTK)
if (moduleMixesGtkSymbols(m_module.get()))
return false;
#endif
NP_InitializeFuncPtr initializeFuncPtr = m_module->functionPointer<NP_InitializeFuncPtr>("NP_Initialize");
if (!initializeFuncPtr)
return false;
#if !PLUGIN_ARCHITECTURE(X11)
NP_GetEntryPointsFuncPtr getEntryPointsFuncPtr = m_module->functionPointer<NP_GetEntryPointsFuncPtr>("NP_GetEntryPoints");
if (!getEntryPointsFuncPtr)
return false;
#endif
m_shutdownProcPtr = m_module->functionPointer<NPP_ShutdownProcPtr>("NP_Shutdown");
if (!m_shutdownProcPtr)
return false;
m_pluginFuncs.size = sizeof(NPPluginFuncs);
m_pluginFuncs.version = (NP_VERSION_MAJOR << 8) | NP_VERSION_MINOR;
// On Mac, NP_Initialize must be called first, then NP_GetEntryPoints. On Windows, the order is
// reversed. Failing to follow this order results in crashes (e.g., in Silverlight on Mac and
// in Flash and QuickTime on Windows).
#if PLUGIN_ARCHITECTURE(MAC)
#ifndef NP_NO_CARBON
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
// Plugins (at least QT) require that you call UseResFile on the resource file before loading it.
ResFileRefNum currentResourceFile = CurResFile();
ResFileRefNum pluginResourceFile = m_module->bundleResourceMap();
UseResFile(pluginResourceFile);
#endif
bool result = initializeFuncPtr(netscapeBrowserFuncs()) == NPERR_NO_ERROR && getEntryPointsFuncPtr(&m_pluginFuncs) == NPERR_NO_ERROR;
#ifndef NP_NO_CARBON
// Restore the resource file.
UseResFile(currentResourceFile);
#pragma clang diagnostic pop
#endif
return result;
#elif PLUGIN_ARCHITECTURE(X11)
if (initializeFuncPtr(netscapeBrowserFuncs(), &m_pluginFuncs) != NPERR_NO_ERROR)
return false;
#endif
return true;
}