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/*
Copyright (C) 2000 Harri Porten (porten@kde.org)
Copyright (C) 2000 Daniel Molkentin (molkentin@kde.org)
Copyright (C) 2000 Stefan Schimanski (schimmi@kde.org)
Copyright (C) 2003, 2004, 2005, 2006, 2007, 2015 Apple Inc. All Rights Reserved.
Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "PluginData.h"
#include "LocalizedStrings.h"
#include "Page.h"
#include "PluginInfoProvider.h"
namespace WebCore {
PluginData::PluginData(Page& page)
: m_page(page)
{
initPlugins();
}
Vector<PluginInfo> PluginData::webVisiblePlugins() const
{
Vector<PluginInfo> plugins;
m_page.pluginInfoProvider().getWebVisiblePluginInfo(m_page, plugins);
return plugins;
}
#if PLATFORM(COCOA)
static inline bool isBuiltInPDFPlugIn(const PluginInfo& plugIn)
{
return plugIn.name == builtInPDFPluginName();
}
#else
static inline bool isBuiltInPDFPlugIn(const PluginInfo&)
{
return false;
}
#endif
static bool shouldBePubliclyVisible(const PluginInfo& plugin)
{
// We can greatly reduce fingerprinting opportunities by only advertising plug-ins
// that are widely needed for general website compatibility. Since many users
// will have these plug-ins, we are not revealing much user-specific information.
//
// Web compatibility data indicate that Flash, QuickTime, Java, and PDF support
// are frequently accessed through the bad practice of iterating over the contents
// of the navigator.plugins list. Luckily, these plug-ins happen to be the least
// user-specific.
return plugin.name.containsIgnoringASCIICase("Shockwave")
|| plugin.name.containsIgnoringASCIICase("QuickTime")
|| plugin.name.containsIgnoringASCIICase("Java")
|| isBuiltInPDFPlugIn(plugin);
}
Vector<PluginInfo> PluginData::publiclyVisiblePlugins() const
{
if (m_page.showAllPlugins())
return webVisiblePlugins();
Vector<PluginInfo> allPlugins;
m_page.pluginInfoProvider().getWebVisiblePluginInfo(m_page, allPlugins);
Vector<PluginInfo> plugins;
for (auto&& plugin : allPlugins) {
if (shouldBePubliclyVisible(plugin))
plugins.append(WTFMove(plugin));
}
std::sort(plugins.begin(), plugins.end(), [](const PluginInfo& a, const PluginInfo& b) {
return codePointCompareLessThan(a.name, b.name);
});
return plugins;
}
void PluginData::getWebVisibleMimesAndPluginIndices(Vector<MimeClassInfo>& mimes, Vector<size_t>& mimePluginIndices) const
{
getMimesAndPluginIndiciesForPlugins(webVisiblePlugins(), mimes, mimePluginIndices);
}
void PluginData::getMimesAndPluginIndices(Vector<MimeClassInfo>& mimes, Vector<size_t>& mimePluginIndices) const
{
getMimesAndPluginIndiciesForPlugins(plugins(), mimes, mimePluginIndices);
}
void PluginData::getMimesAndPluginIndiciesForPlugins(const Vector<PluginInfo>& plugins, Vector<MimeClassInfo>& mimes, Vector<size_t>& mimePluginIndices) const
{
ASSERT_ARG(mimes, mimes.isEmpty());
ASSERT_ARG(mimePluginIndices, mimePluginIndices.isEmpty());
for (unsigned i = 0; i < plugins.size(); ++i) {
const PluginInfo& plugin = plugins[i];
for (auto& mime : plugin.mimes) {
mimes.append(mime);
mimePluginIndices.append(i);
}
}
}
bool PluginData::supportsWebVisibleMimeType(const String& mimeType, const AllowedPluginTypes allowedPluginTypes) const
{
Vector<MimeClassInfo> mimes;
Vector<size_t> mimePluginIndices;
const Vector<PluginInfo>& plugins = webVisiblePlugins();
getWebVisibleMimesAndPluginIndices(mimes, mimePluginIndices);
for (unsigned i = 0; i < mimes.size(); ++i) {
if (mimes[i].type == mimeType && (allowedPluginTypes == AllPlugins || plugins[mimePluginIndices[i]].isApplicationPlugin))
return true;
}
return false;
}
bool PluginData::getPluginInfoForWebVisibleMimeType(const String& mimeType, PluginInfo& pluginInfoRef) const
{
Vector<MimeClassInfo> mimes;
Vector<size_t> mimePluginIndices;
const Vector<PluginInfo>& plugins = webVisiblePlugins();
getWebVisibleMimesAndPluginIndices(mimes, mimePluginIndices);
for (unsigned i = 0; i < mimes.size(); ++i) {
const MimeClassInfo& info = mimes[i];
if (info.type == mimeType) {
pluginInfoRef = plugins[mimePluginIndices[i]];
return true;
}
}
return false;
}
String PluginData::pluginFileForWebVisibleMimeType(const String& mimeType) const
{
PluginInfo info;
if (getPluginInfoForWebVisibleMimeType(mimeType, info))
return info.file;
return String();
}
bool PluginData::supportsMimeType(const String& mimeType, const AllowedPluginTypes allowedPluginTypes) const
{
Vector<MimeClassInfo> mimes;
Vector<size_t> mimePluginIndices;
const Vector<PluginInfo>& plugins = this->plugins();
getMimesAndPluginIndices(mimes, mimePluginIndices);
for (unsigned i = 0; i < mimes.size(); ++i) {
if (mimes[i].type == mimeType && (allowedPluginTypes == AllPlugins || plugins[mimePluginIndices[i]].isApplicationPlugin))
return true;
}
return false;
}
void PluginData::initPlugins()
{
ASSERT(m_plugins.isEmpty());
m_page.pluginInfoProvider().getPluginInfo(m_page, m_plugins);
}
} // namespace WebCore
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