blob: 04601982d9fe0a748ae2af5ed799e39a5b3e5fc6 [file] [log] [blame]
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "webkit/plugins/npapi/plugin_group.h"
#include "base/linked_ptr.h"
#include "base/string_util.h"
#include "base/sys_string_conversions.h"
#include "base/utf_string_conversions.h"
#include "base/values.h"
#include "base/version.h"
#include "webkit/plugins/npapi/plugin_list.h"
#include "webkit/plugins/npapi/webplugininfo.h"
namespace webkit {
namespace npapi {
const char* PluginGroup::kAdobeReaderGroupName = "Adobe Reader";
/*static*/
std::set<string16>* PluginGroup::policy_disabled_plugin_patterns_;
/*static*/
void PluginGroup::SetPolicyDisabledPluginPatterns(
const std::set<string16>& set) {
if (!policy_disabled_plugin_patterns_)
policy_disabled_plugin_patterns_ = new std::set<string16>(set);
else
*policy_disabled_plugin_patterns_ = set;
}
/*static*/
bool PluginGroup::IsPluginNameDisabledByPolicy(const string16& plugin_name) {
if (!policy_disabled_plugin_patterns_)
return false;
std::set<string16>::const_iterator pattern(
policy_disabled_plugin_patterns_->begin());
while (pattern != policy_disabled_plugin_patterns_->end()) {
if (MatchPattern(plugin_name, *pattern))
return true;
++pattern;
}
return false;
}
/*static*/
bool PluginGroup::IsPluginPathDisabledByPolicy(const FilePath& plugin_path) {
std::vector<WebPluginInfo> plugins;
PluginList::Singleton()->GetPlugins(false, &plugins);
for (std::vector<WebPluginInfo>::const_iterator it = plugins.begin();
it != plugins.end();
++it) {
if (FilePath::CompareEqualIgnoreCase(it->path.value(),
plugin_path.value()) && IsPluginNameDisabledByPolicy(it->name)) {
return true;
}
}
return false;
}
VersionRange::VersionRange(VersionRangeDefinition definition)
: low_str(definition.version_matcher_low),
high_str(definition.version_matcher_high),
min_str(definition.min_version) {
if (!low_str.empty())
low.reset(Version::GetVersionFromString(low_str));
if (!high_str.empty())
high.reset(Version::GetVersionFromString(high_str));
if (!min_str.empty())
min.reset(Version::GetVersionFromString(min_str));
}
VersionRange::VersionRange(const VersionRange& other) {
InitFrom(other);
}
VersionRange& VersionRange::operator=(const VersionRange& other) {
InitFrom(other);
return *this;
}
VersionRange::~VersionRange() {}
void VersionRange::InitFrom(const VersionRange& other) {
low_str = other.low_str;
high_str = other.high_str;
min_str = other.min_str;
low.reset(Version::GetVersionFromString(other.low_str));
high.reset(Version::GetVersionFromString(other.high_str));
min.reset(Version::GetVersionFromString(other.min_str));
}
PluginGroup::PluginGroup(const string16& group_name,
const string16& name_matcher,
const std::string& update_url,
const std::string& identifier)
: identifier_(identifier),
group_name_(group_name),
name_matcher_(name_matcher),
update_url_(update_url),
enabled_(false),
version_(Version::GetVersionFromString("0")) {
}
void PluginGroup::InitFrom(const PluginGroup& other) {
identifier_ = other.identifier_;
group_name_ = other.group_name_;
name_matcher_ = other.name_matcher_;
description_ = other.description_;
update_url_ = other.update_url_;
enabled_ = other.enabled_;
version_ranges_ = other.version_ranges_;
version_.reset(other.version_->Clone());
web_plugin_infos_ = other.web_plugin_infos_;
web_plugin_positions_ = other.web_plugin_positions_;
}
PluginGroup::PluginGroup(const PluginGroup& other) {
InitFrom(other);
}
PluginGroup& PluginGroup::operator=(const PluginGroup& other) {
InitFrom(other);
return *this;
}
/*static*/
PluginGroup* PluginGroup::FromPluginGroupDefinition(
const PluginGroupDefinition& definition) {
PluginGroup* group = new PluginGroup(ASCIIToUTF16(definition.name),
ASCIIToUTF16(definition.name_matcher),
definition.update_url,
definition.identifier);
for (size_t i = 0; i < definition.num_versions; ++i)
group->version_ranges_.push_back(VersionRange(definition.versions[i]));
return group;
}
PluginGroup::~PluginGroup() { }
/*static*/
std::string PluginGroup::GetIdentifier(const WebPluginInfo& wpi) {
#if defined(OS_POSIX)
return wpi.path.BaseName().value();
#elif defined(OS_WIN)
return base::SysWideToUTF8(wpi.path.BaseName().value());
#endif
}
/*static*/
std::string PluginGroup::GetLongIdentifier(const WebPluginInfo& wpi) {
#if defined(OS_POSIX)
return wpi.path.value();
#elif defined(OS_WIN)
return base::SysWideToUTF8(wpi.path.value());
#endif
}
/*static*/
PluginGroup* PluginGroup::FromWebPluginInfo(const WebPluginInfo& wpi) {
// Create a matcher from the name of this plugin.
return new PluginGroup(wpi.name, wpi.name, std::string(),
GetIdentifier(wpi));
}
bool PluginGroup::Match(const WebPluginInfo& plugin) const {
if (name_matcher_.empty()) {
return false;
}
// Look for the name matcher anywhere in the plugin name.
if (plugin.name.find(name_matcher_) == string16::npos) {
return false;
}
if (version_ranges_.empty()) {
return true;
}
// There's at least one version range, the plugin's version must be in it.
scoped_ptr<Version> plugin_version(
Version::GetVersionFromString(UTF16ToWide(plugin.version)));
if (plugin_version.get() == NULL) {
// No version could be extracted, assume we don't match the range.
return false;
}
// Match if the plugin is contained in any of the defined VersionRanges.
for (size_t i = 0; i < version_ranges_.size(); ++i) {
if (IsVersionInRange(*plugin_version, version_ranges_[i])) {
return true;
}
}
// None of the VersionRanges matched.
return false;
}
/* static */
Version* PluginGroup::CreateVersionFromString(const string16& version_string) {
// Remove spaces and ')' from the version string,
// Replace any instances of 'r', ',' or '(' with a dot.
std::wstring version = UTF16ToWide(version_string);
RemoveChars(version, L") ", &version);
std::replace(version.begin(), version.end(), 'r', '.');
std::replace(version.begin(), version.end(), ',', '.');
std::replace(version.begin(), version.end(), '(', '.');
return Version::GetVersionFromString(version);
}
void PluginGroup::UpdateActivePlugin(const WebPluginInfo& plugin) {
// A group is enabled if any of the files are enabled.
if (plugin.enabled) {
if (!enabled_) {
// If this is the first enabled plugin, use its description.
enabled_ = true;
UpdateDescriptionAndVersion(plugin);
}
} else {
// If this is the first plugin and it's disabled,
// use its description for now.
if (description_.empty())
UpdateDescriptionAndVersion(plugin);
}
}
void PluginGroup::UpdateDescriptionAndVersion(const WebPluginInfo& plugin) {
description_ = plugin.desc;
if (Version* new_version = CreateVersionFromString(plugin.version))
version_.reset(new_version);
else
version_.reset(Version::GetVersionFromString("0"));
}
void PluginGroup::AddPlugin(const WebPluginInfo& plugin, int position) {
// Check if this group already contains this plugin.
for (size_t i = 0; i < web_plugin_infos_.size(); ++i) {
if (web_plugin_infos_[i].name == plugin.name &&
web_plugin_infos_[i].version == plugin.version &&
FilePath::CompareEqualIgnoreCase(web_plugin_infos_[i].path.value(),
plugin.path.value())) {
return;
}
}
web_plugin_infos_.push_back(plugin);
// The position of this plugin relative to the global list of plugins.
web_plugin_positions_.push_back(position);
UpdateActivePlugin(plugin);
}
bool PluginGroup::IsEmpty() const {
return web_plugin_infos_.empty();
}
string16 PluginGroup::GetGroupName() const {
if (!group_name_.empty())
return group_name_;
DCHECK_EQ(1u, web_plugin_infos_.size());
FilePath::StringType path =
web_plugin_infos_[0].path.BaseName().RemoveExtension().value();
#if defined(OS_POSIX)
return UTF8ToUTF16(path);
#elif defined(OS_WIN)
return WideToUTF16(path);
#endif
}
DictionaryValue* PluginGroup::GetSummary() const {
DictionaryValue* result = new DictionaryValue();
result->SetString("name", GetGroupName());
result->SetBoolean("enabled", enabled_);
return result;
}
DictionaryValue* PluginGroup::GetDataForUI() const {
string16 name = GetGroupName();
DictionaryValue* result = new DictionaryValue();
result->SetString("name", name);
result->SetString("description", description_);
result->SetString("version", version_->GetString());
result->SetString("update_url", update_url_);
result->SetBoolean("critical", IsVulnerable());
bool group_disabled_by_policy = IsPluginNameDisabledByPolicy(name);
ListValue* plugin_files = new ListValue();
bool all_plugins_disabled_by_policy = true;
for (size_t i = 0; i < web_plugin_infos_.size(); ++i) {
const WebPluginInfo& web_plugin = web_plugin_infos_[i];
int priority = web_plugin_positions_[i];
DictionaryValue* plugin_file = new DictionaryValue();
plugin_file->SetString("name", web_plugin.name);
plugin_file->SetString("description", web_plugin.desc);
plugin_file->SetString("path", web_plugin.path.value());
plugin_file->SetString("version", web_plugin.version);
bool plugin_disabled_by_policy = group_disabled_by_policy ||
IsPluginNameDisabledByPolicy(web_plugin.name);
if (plugin_disabled_by_policy) {
plugin_file->SetString("enabledMode", "disabledByPolicy");
} else {
all_plugins_disabled_by_policy = false;
plugin_file->SetString("enabledMode",
web_plugin.enabled ? "enabled" : "disabledByUser");
}
plugin_file->SetInteger("priority", priority);
ListValue* mime_types = new ListValue();
for (std::vector<WebPluginMimeType>::const_iterator type_it =
web_plugin.mime_types.begin();
type_it != web_plugin.mime_types.end();
++type_it) {
DictionaryValue* mime_type = new DictionaryValue();
mime_type->SetString("mimeType", type_it->mime_type);
mime_type->SetString("description", type_it->description);
ListValue* file_extensions = new ListValue();
for (std::vector<std::string>::const_iterator ext_it =
type_it->file_extensions.begin();
ext_it != type_it->file_extensions.end();
++ext_it) {
file_extensions->Append(new StringValue(*ext_it));
}
mime_type->Set("fileExtensions", file_extensions);
mime_types->Append(mime_type);
}
plugin_file->Set("mimeTypes", mime_types);
plugin_files->Append(plugin_file);
}
if (group_disabled_by_policy || all_plugins_disabled_by_policy) {
result->SetString("enabledMode", "disabledByPolicy");
} else {
result->SetString("enabledMode", enabled_ ? "enabled" : "disabledByUser");
}
result->Set("plugin_files", plugin_files);
return result;
}
/*static*/
bool PluginGroup::IsVersionInRange(const Version& version,
const VersionRange& range) {
DCHECK(range.low.get() != NULL || range.high.get() == NULL)
<< "Lower bound of version range must be defined.";
return (range.low.get() == NULL && range.high.get() == NULL) ||
(range.low->CompareTo(version) <= 0 &&
(range.high.get() == NULL || range.high->CompareTo(version) > 0));
}
/*static*/
bool PluginGroup::IsPluginOutdated(const Version& plugin_version,
const VersionRange& version_range) {
if (IsVersionInRange(plugin_version, version_range)) {
if (version_range.min.get() &&
plugin_version.CompareTo(*version_range.min) < 0) {
return true;
}
}
return false;
}
// Returns true if the latest version of this plugin group is vulnerable.
bool PluginGroup::IsVulnerable() const {
for (size_t i = 0; i < version_ranges_.size(); ++i) {
if (IsPluginOutdated(*version_, version_ranges_[i]))
return true;
}
return false;
}
void PluginGroup::DisableOutdatedPlugins() {
description_ = string16();
enabled_ = false;
for (std::vector<WebPluginInfo>::iterator it =
web_plugin_infos_.begin();
it != web_plugin_infos_.end(); ++it) {
scoped_ptr<Version> version(CreateVersionFromString(it->version));
if (version.get()) {
for (size_t i = 0; i < version_ranges_.size(); ++i) {
if (IsPluginOutdated(*version, version_ranges_[i])) {
it->enabled = false;
PluginList::Singleton()->DisablePlugin(it->path);
}
}
}
UpdateActivePlugin(*it);
}
}
void PluginGroup::Enable(bool enable) {
bool enabled_plugin_exists = false;
for (std::vector<WebPluginInfo>::iterator it =
web_plugin_infos_.begin();
it != web_plugin_infos_.end(); ++it) {
if (enable && !IsPluginNameDisabledByPolicy(it->name)) {
PluginList::Singleton()->EnablePlugin(it->path);
it->enabled = true;
enabled_plugin_exists = true;
} else {
it->enabled = false;
PluginList::Singleton()->DisablePlugin(it->path);
}
}
enabled_ = enabled_plugin_exists;
}
} // namespace npapi
} // namespace webkit