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/*
* Copyright (C) 2014 Igalia S.L.
*
* 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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 "PluginInfoCache.h"
#if ENABLE(NETSCAPE_PLUGIN_API)
#include "NetscapePluginModule.h"
#include <WebCore/FileSystem.h>
#include <wtf/text/CString.h>
namespace WebKit {
static const unsigned gSchemaVersion = 2;
PluginInfoCache& PluginInfoCache::shared()
{
static NeverDestroyed<PluginInfoCache> pluginInfoCache;
return pluginInfoCache;
}
PluginInfoCache::PluginInfoCache()
: m_cacheFile(g_key_file_new())
, m_readOnlyMode(false)
{
GUniquePtr<char> cacheDirectory(g_build_filename(g_get_user_cache_dir(), "webkitgtk", nullptr));
if (WebCore::makeAllDirectories(cacheDirectory.get())) {
m_cachePath.reset(g_build_filename(cacheDirectory.get(), "plugins", nullptr));
g_key_file_load_from_file(m_cacheFile.get(), m_cachePath.get(), G_KEY_FILE_NONE, nullptr);
}
if (g_key_file_has_group(m_cacheFile.get(), "schema")) {
unsigned schemaVersion = static_cast<unsigned>(g_key_file_get_integer(m_cacheFile.get(), "schema", "version", nullptr));
if (schemaVersion < gSchemaVersion) {
// Cache file using an old schema, create a new empty file.
m_cacheFile.reset(g_key_file_new());
} else if (schemaVersion > gSchemaVersion) {
// Cache file using a newer schema, use the cache in read only mode.
m_readOnlyMode = true;
} else {
// Same schema version, we don't need to update it.
return;
}
}
g_key_file_set_integer(m_cacheFile.get(), "schema", "version", static_cast<unsigned>(gSchemaVersion));
}
PluginInfoCache::~PluginInfoCache()
{
if (m_saveToFileIdle.isScheduled()) {
m_saveToFileIdle.cancel();
saveToFile();
}
}
void PluginInfoCache::saveToFile()
{
std::lock_guard<std::mutex> lock(m_mutex);
gsize dataLength;
GUniquePtr<char> data(g_key_file_to_data(m_cacheFile.get(), &dataLength, nullptr));
if (!data)
return;
g_file_set_contents(m_cachePath.get(), data.get(), dataLength, nullptr);
}
bool PluginInfoCache::getPluginInfo(const String& pluginPath, PluginModuleInfo& plugin)
{
CString pluginGroup = pluginPath.utf8();
if (!g_key_file_has_group(m_cacheFile.get(), pluginGroup.data()))
return false;
time_t lastModified;
if (!WebCore::getFileModificationTime(pluginPath, lastModified))
return false;
time_t cachedLastModified = static_cast<time_t>(g_key_file_get_uint64(m_cacheFile.get(), pluginGroup.data(), "mtime", nullptr));
if (lastModified != cachedLastModified)
return false;
plugin.path = pluginPath;
plugin.info.file = WebCore::pathGetFileName(pluginPath);
GUniquePtr<char> stringValue(g_key_file_get_string(m_cacheFile.get(), pluginGroup.data(), "name", nullptr));
plugin.info.name = String::fromUTF8(stringValue.get());
stringValue.reset(g_key_file_get_string(m_cacheFile.get(), pluginGroup.data(), "description", nullptr));
plugin.info.desc = String::fromUTF8(stringValue.get());
#if PLUGIN_ARCHITECTURE(X11)
stringValue.reset(g_key_file_get_string(m_cacheFile.get(), pluginGroup.data(), "mime-description", nullptr));
NetscapePluginModule::parseMIMEDescription(String::fromUTF8(stringValue.get()), plugin.info.mimes);
#endif
plugin.requiresGtk2 = g_key_file_get_boolean(m_cacheFile.get(), pluginGroup.data(), "requires-gtk2", nullptr);
return true;
}
void PluginInfoCache::updatePluginInfo(const String& pluginPath, const PluginModuleInfo& plugin)
{
time_t lastModified;
if (!WebCore::getFileModificationTime(pluginPath, lastModified))
return;
CString pluginGroup = pluginPath.utf8();
g_key_file_set_uint64(m_cacheFile.get(), pluginGroup.data(), "mtime", static_cast<guint64>(lastModified));
g_key_file_set_string(m_cacheFile.get(), pluginGroup.data(), "name", plugin.info.name.utf8().data());
g_key_file_set_string(m_cacheFile.get(), pluginGroup.data(), "description", plugin.info.desc.utf8().data());
#if PLUGIN_ARCHITECTURE(X11)
String mimeDescription = NetscapePluginModule::buildMIMEDescription(plugin.info.mimes);
g_key_file_set_string(m_cacheFile.get(), pluginGroup.data(), "mime-description", mimeDescription.utf8().data());
#endif
g_key_file_set_boolean(m_cacheFile.get(), pluginGroup.data(), "requires-gtk2", plugin.requiresGtk2);
if (m_cachePath && !m_readOnlyMode) {
// Save the cache file in an idle to make sure it happens in the main thread and
// it's done only once when this is called multiple times in a very short time.
std::lock_guard<std::mutex> lock(m_mutex);
if (m_saveToFileIdle.isScheduled())
return;
m_saveToFileIdle.schedule("[WebKit] PluginInfoCache::saveToFile", std::bind(&PluginInfoCache::saveToFile, this), G_PRIORITY_DEFAULT_IDLE);
}
}
} // namespace WebKit
#endif // ENABLE(NETSCAPE_PLUGIN_API)
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