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/*
* Copyright (C) 2010, 2012 Apple Inc. 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 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 "PluginInfoStore.h"
#if ENABLE(NETSCAPE_PLUGIN_API)
#include "PluginModuleInfo.h"
#include <WebCore/URL.h>
#include <WebCore/MIMETypeRegistry.h>
#include <algorithm>
#include <wtf/ListHashSet.h>
#include <wtf/StdLibExtras.h>
using namespace WebCore;
namespace WebKit {
PluginInfoStore::PluginInfoStore()
: m_pluginListIsUpToDate(false)
, m_client(0)
{
}
void PluginInfoStore::setAdditionalPluginsDirectories(const Vector<String>& directories)
{
m_additionalPluginsDirectories = directories;
refresh();
}
void PluginInfoStore::refresh()
{
m_pluginListIsUpToDate = false;
}
template <typename T, typename U>
static void addFromVector(T& hashSet, const U& vector)
{
for (size_t i = 0; i < vector.size(); ++i)
hashSet.add(vector[i]);
}
// We use a ListHashSet so that plugins will be loaded from the additional plugins directories first
// (which in turn means those plugins will be preferred if two plugins claim the same MIME type).
#if OS(WINDOWS)
typedef ListHashSet<String, ASCIICaseInsensitiveHash> PathHashSet;
#else
typedef ListHashSet<String> PathHashSet;
#endif
void PluginInfoStore::loadPluginsIfNecessary()
{
if (m_pluginListIsUpToDate)
return;
PathHashSet uniquePluginPaths;
// First, load plug-ins from the additional plug-ins directories specified.
for (size_t i = 0; i < m_additionalPluginsDirectories.size(); ++i)
addFromVector(uniquePluginPaths, pluginPathsInDirectory(m_additionalPluginsDirectories[i]));
// Then load plug-ins from the standard plug-ins directories.
Vector<String> directories = pluginsDirectories();
for (size_t i = 0; i < directories.size(); ++i)
addFromVector(uniquePluginPaths, pluginPathsInDirectory(directories[i]));
// Then load plug-ins that are not in the standard plug-ins directories.
addFromVector(uniquePluginPaths, individualPluginPaths());
m_plugins.clear();
for (const auto& pluginPath : uniquePluginPaths)
loadPlugin(m_plugins, pluginPath);
m_pluginListIsUpToDate = true;
if (m_client)
m_client->pluginInfoStoreDidLoadPlugins(this);
}
void PluginInfoStore::loadPlugin(Vector<PluginModuleInfo>& plugins, const String& pluginPath)
{
PluginModuleInfo plugin;
if (!getPluginInfo(pluginPath, plugin))
return;
if (!shouldUsePlugin(plugins, plugin))
return;
plugins.append(plugin);
}
Vector<PluginModuleInfo> PluginInfoStore::plugins()
{
loadPluginsIfNecessary();
return m_plugins;
}
PluginModuleInfo PluginInfoStore::findPluginForMIMEType(const String& mimeType, PluginData::AllowedPluginTypes allowedPluginTypes) const
{
ASSERT(!mimeType.isNull());
for (const auto& plugin : m_plugins) {
if (allowedPluginTypes == PluginData::OnlyApplicationPlugins && !plugin.info.isApplicationPlugin)
continue;
for (const auto& mimeClassInfo : plugin.info.mimes) {
if (mimeClassInfo.type == mimeType)
return plugin;
}
}
return PluginModuleInfo();
}
PluginModuleInfo PluginInfoStore::findPluginForExtension(const String& extension, String& mimeType, PluginData::AllowedPluginTypes allowedPluginTypes) const
{
ASSERT(!extension.isNull());
for (const auto& plugin : m_plugins) {
if (allowedPluginTypes == PluginData::OnlyApplicationPlugins && !plugin.info.isApplicationPlugin)
continue;
for (const auto& mimeClassInfo : plugin.info.mimes) {
if (mimeClassInfo.extensions.contains(extension)) {
// We found a supported extension, set the correct MIME type.
mimeType = mimeClassInfo.type;
return plugin;
}
}
}
return PluginModuleInfo();
}
static inline String pathExtension(const URL& url)
{
String extension;
String filename = url.lastPathComponent();
if (!filename.endsWith('/')) {
size_t extensionPos = filename.reverseFind('.');
if (extensionPos != notFound)
extension = filename.substring(extensionPos + 1);
}
return extension.convertToASCIILowercase();
}
#if !PLATFORM(COCOA)
PluginModuleLoadPolicy PluginInfoStore::defaultLoadPolicyForPlugin(const PluginModuleInfo&)
{
return PluginModuleLoadNormally;
}
PluginModuleInfo PluginInfoStore::findPluginWithBundleIdentifier(const String&)
{
ASSERT_NOT_REACHED();
return PluginModuleInfo();
}
#endif
PluginModuleInfo PluginInfoStore::findPlugin(String& mimeType, const URL& url, PluginData::AllowedPluginTypes allowedPluginTypes)
{
loadPluginsIfNecessary();
// First, check if we can get the plug-in based on its MIME type.
if (!mimeType.isNull()) {
PluginModuleInfo plugin = findPluginForMIMEType(mimeType, allowedPluginTypes);
if (!plugin.path.isNull())
return plugin;
}
// Next, check if any plug-ins claim to support the URL extension.
String extension = pathExtension(url);
if (!extension.isNull() && mimeType.isEmpty()) {
PluginModuleInfo plugin = findPluginForExtension(extension, mimeType, allowedPluginTypes);
if (!plugin.path.isNull())
return plugin;
// Finally, try to get the MIME type from the extension in a platform specific manner and use that.
String extensionMimeType = MIMETypeRegistry::getMIMETypeForExtension(extension);
if (!extensionMimeType.isNull()) {
PluginModuleInfo plugin = findPluginForMIMEType(extensionMimeType, allowedPluginTypes);
if (!plugin.path.isNull()) {
mimeType = extensionMimeType;
return plugin;
}
}
}
return PluginModuleInfo();
}
PluginModuleInfo PluginInfoStore::infoForPluginWithPath(const String& pluginPath) const
{
for (const auto& plugin : m_plugins) {
if (plugin.path == pluginPath)
return plugin;
}
ASSERT_NOT_REACHED();
return PluginModuleInfo();
}
} // namespace WebKit
#endif // ENABLE(NETSCAPE_PLUGIN_API)
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