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/*
* Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
* Copyright (C) 2008 Collabora Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "PluginPackage.h"
#include "CString.h"
#include "MIMETypeRegistry.h"
#include "npruntime_impl.h"
#include "PluginDatabase.h"
#include "PluginDebug.h"
namespace WebCore {
typedef void gtkInitFunc(int *argc, char ***argv);
bool PluginPackage::fetchInfo()
{
if (!load())
return false;
NPP_GetValueProcPtr gv = (NPP_GetValueProcPtr)m_module->resolve("NP_GetValue");
typedef char *(*NPP_GetMIMEDescriptionProcPtr)();
NPP_GetMIMEDescriptionProcPtr gm =
(NPP_GetMIMEDescriptionProcPtr)m_module->resolve("NP_GetMIMEDescription");
if (!gm || !gv)
return false;
char *buf = 0;
NPError err = gv(0, NPPVpluginNameString, (void*) &buf);
if (err != NPERR_NO_ERROR)
return false;
m_name = buf;
err = gv(0, NPPVpluginDescriptionString, (void*) &buf);
if (err != NPERR_NO_ERROR)
return false;
m_description = buf;
determineModuleVersionFromDescription();
String s = gm();
Vector<String> types;
s.split(UChar(';'), false, types);
for (unsigned i = 0; i < types.size(); ++i) {
Vector<String> mime;
types[i].split(UChar(':'), true, mime);
if (mime.size() > 0) {
Vector<String> exts;
if (mime.size() > 1)
mime[1].split(UChar(','), false, exts);
determineQuirks(mime[0]);
m_mimeToExtensions.add(mime[0], exts);
if (mime.size() > 2)
m_mimeToDescriptions.add(mime[0], mime[2]);
}
}
return true;
}
static NPError staticPluginQuirkRequiresGtkToolKit_NPN_GetValue(NPP instance, NPNVariable variable, void* value)
{
if (variable == NPNVToolkit) {
*static_cast<uint32*>(value) = 2;
return NPERR_NO_ERROR;
}
return NPN_GetValue(instance, variable, value);
}
bool PluginPackage::load()
{
if (m_isLoaded) {
m_loadCount++;
return true;
}
m_module = new QLibrary((QString)m_path);
m_module->setLoadHints(QLibrary::ResolveAllSymbolsHint);
if (!m_module->load()) {
LOG(Plugins, "%s not loaded (%s)", m_path.utf8().data(),
m_module->errorString().toLatin1().constData());
return false;
}
m_isLoaded = true;
NP_InitializeFuncPtr NP_Initialize;
NPError npErr;
gtkInitFunc* gtkInit;
NP_Initialize = (NP_InitializeFuncPtr)m_module->resolve("NP_Initialize");
m_NPP_Shutdown = (NPP_ShutdownProcPtr)m_module->resolve("NP_Shutdown");
if (!NP_Initialize || !m_NPP_Shutdown)
goto abort;
memset(&m_pluginFuncs, 0, sizeof(m_pluginFuncs));
m_pluginFuncs.size = sizeof(m_pluginFuncs);
initializeBrowserFuncs();
if (m_path.contains("npwrapper.")) {
// nspluginwrapper relies on the toolkit value to know if glib is available
// It does so in NP_Initialize with a null instance, therefore it is done this way:
m_browserFuncs.getvalue = staticPluginQuirkRequiresGtkToolKit_NPN_GetValue;
}
// WORKAROUND: Prevent gtk based plugin crashes such as BR# 40567 by
// explicitly forcing the initializing of Gtk, i.e. calling gtk_init,
// whenver the symbol is present in the plugin library loaded above.
// Note that this workaround is based on code from the NSPluginClass ctor
// in KDE's kdebase/apps/nsplugins/viewer/nsplugin.cpp file.
gtkInit = (gtkInitFunc*)m_module->resolve("gtk_init");
if (gtkInit) {
// Prevent gtk_init() from replacing the X error handlers, since the Gtk
// handlers abort when they receive an X error, thus killing the viewer.
#ifdef Q_WS_X11
int (*old_error_handler)(Display*, XErrorEvent*) = XSetErrorHandler(0);
int (*old_io_error_handler)(Display*) = XSetIOErrorHandler(0);
#endif
gtkInit(0, 0);
#ifdef Q_WS_X11
XSetErrorHandler(old_error_handler);
XSetIOErrorHandler(old_io_error_handler);
#endif
}
#if defined(XP_UNIX)
npErr = NP_Initialize(&m_browserFuncs, &m_pluginFuncs);
#else
npErr = NP_Initialize(&m_browserFuncs);
#endif
if (npErr != NPERR_NO_ERROR)
goto abort;
m_loadCount++;
return true;
abort:
unloadWithoutShutdown();
return false;
}
}
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