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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.
*/
#import "config.h"
#import "PluginInfoStore.h"
#if ENABLE(NETSCAPE_PLUGIN_API)
#import "NetscapePluginModule.h"
#import "WebKitSystemInterface.h"
#import <WebCore/WebCoreNSStringExtras.h>
#import <wtf/HashSet.h>
#import <wtf/RetainPtr.h>
using namespace WebCore;
static const char* const oracleJavaAppletPluginBundleIdentifier = "com.oracle.java.JavaAppletPlugin";
namespace WebKit {
Vector<String> PluginInfoStore::pluginsDirectories()
{
Vector<String> pluginsDirectories;
pluginsDirectories.append([NSHomeDirectory() stringByAppendingPathComponent:@"Library/Internet Plug-Ins"]);
pluginsDirectories.append("/Library/Internet Plug-Ins");
return pluginsDirectories;
}
// FIXME: Once the UI process knows the difference between the main thread and the web thread we can drop this and just use
// String::createCFString.
static CFStringRef safeCreateCFString(const String& string)
{
return CFStringCreateWithCharacters(0, reinterpret_cast<const UniChar*>(string.characters()), string.length());
}
Vector<String> PluginInfoStore::pluginPathsInDirectory(const String& directory)
{
Vector<String> pluginPaths;
RetainPtr<CFStringRef> directoryCFString = adoptCF(safeCreateCFString(directory));
NSArray *filenames = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:(NSString *)directoryCFString.get() error:nil];
for (NSString *filename in filenames)
pluginPaths.append([(NSString *)directoryCFString.get() stringByAppendingPathComponent:filename]);
return pluginPaths;
}
Vector<String> PluginInfoStore::individualPluginPaths()
{
return Vector<String>();
}
bool PluginInfoStore::getPluginInfo(const String& pluginPath, PluginModuleInfo& plugin)
{
return NetscapePluginModule::getPluginInfo(pluginPath, plugin);
}
static size_t findPluginWithBundleIdentifier(const Vector<PluginModuleInfo>& plugins, const String& bundleIdentifier)
{
for (size_t i = 0; i < plugins.size(); ++i) {
if (plugins[i].bundleIdentifier == bundleIdentifier)
return i;
}
return notFound;
}
// Returns true if the given plug-in should be loaded, false otherwise.
static bool checkForPreferredPlugin(Vector<PluginModuleInfo>& alreadyLoadedPlugins, const PluginModuleInfo& plugin, const String& oldPluginBundleIdentifier, const String& newPluginBundleIdentifier)
{
if (plugin.bundleIdentifier == oldPluginBundleIdentifier) {
// If we've already found the new plug-in, we don't want to load the old plug-in.
if (findPluginWithBundleIdentifier(alreadyLoadedPlugins, newPluginBundleIdentifier) != notFound)
return false;
} else if (plugin.bundleIdentifier == newPluginBundleIdentifier) {
// If we've already found the old plug-in, remove it from the list of loaded plug-ins.
size_t oldPluginIndex = findPluginWithBundleIdentifier(alreadyLoadedPlugins, oldPluginBundleIdentifier);
if (oldPluginIndex != notFound)
alreadyLoadedPlugins.remove(oldPluginIndex);
}
return true;
}
static bool shouldBlockPlugin(const PluginModuleInfo& plugin)
{
return PluginInfoStore::defaultLoadPolicyForPlugin(plugin) == PluginModuleBlocked;
}
bool PluginInfoStore::shouldUsePlugin(Vector<PluginModuleInfo>& alreadyLoadedPlugins, const PluginModuleInfo& plugin)
{
for (size_t i = 0; i < alreadyLoadedPlugins.size(); ++i) {
const PluginModuleInfo& loadedPlugin = alreadyLoadedPlugins[i];
// If a plug-in with the same bundle identifier already exists, we don't want to load it.
// However, if the already existing plug-in is blocked we want to replace it with the new plug-in.
if (loadedPlugin.bundleIdentifier == plugin.bundleIdentifier) {
if (!shouldBlockPlugin(loadedPlugin))
return false;
alreadyLoadedPlugins.remove(i);
break;
}
}
// Prefer the Oracle Java plug-in over the Apple java plug-in.
if (!checkForPreferredPlugin(alreadyLoadedPlugins, plugin, "com.apple.java.JavaAppletPlugin", oracleJavaAppletPluginBundleIdentifier))
return false;
return true;
}
PluginModuleLoadPolicy PluginInfoStore::defaultLoadPolicyForPlugin(const PluginModuleInfo& plugin)
{
if (WKShouldBlockPlugin(plugin.bundleIdentifier, plugin.versionString))
return PluginModuleBlocked;
return PluginModuleLoadNormally;
}
String PluginInfoStore::getMIMETypeForExtension(const String& extension)
{
// FIXME: This should just call MIMETypeRegistry::getMIMETypeForExtension and be
// strength reduced into the callsite once we can safely convert String
// to CFStringRef off the main thread.
RetainPtr<CFStringRef> extensionCFString = adoptCF(safeCreateCFString(extension));
return WKGetMIMETypeForExtension((NSString *)extensionCFString.get());
}
PluginModuleInfo PluginInfoStore::findPluginWithBundleIdentifier(const String& bundleIdentifier)
{
loadPluginsIfNecessary();
for (size_t i = 0; i < m_plugins.size(); ++i) {
if (m_plugins[i].bundleIdentifier == bundleIdentifier)
return m_plugins[i];
}
return PluginModuleInfo();
}
} // namespace WebKit
#endif // ENABLE(NETSCAPE_PLUGIN_API)
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