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// 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 "chrome/browser/host_content_settings_map.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/chrome_thread.h"
#include "chrome/browser/profile.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/pref_service.h"
// static
const wchar_t* HostContentSettingsMap::kTypeNames[] = {
L"cookies",
L"images",
L"javascript",
L"plugins",
L"popups",
};
HostContentSettingsMap::HostContentSettingsMap(Profile* profile)
: profile_(profile) {
DCHECK_EQ(arraysize(kTypeNames),
static_cast<size_t>(CONTENT_SETTINGS_NUM_TYPES));
const DictionaryValue* default_settings_dictionary =
profile_->GetPrefs()->GetDictionary(prefs::kDefaultContentSettings);
// Careful: The returned value could be NULL if the pref has never been set.
if (default_settings_dictionary != NULL) {
GetSettingsFromDictionary(default_settings_dictionary,
&default_content_settings_);
}
const DictionaryValue* all_settings_dictionary =
profile_->GetPrefs()->GetDictionary(prefs::kPerHostContentSettings);
// Careful: The returned value could be NULL if the pref has never been set.
if (all_settings_dictionary != NULL) {
for (DictionaryValue::key_iterator i(all_settings_dictionary->begin_keys());
i != all_settings_dictionary->end_keys(); ++i) {
std::wstring wide_host(*i);
DictionaryValue* host_settings_dictionary = NULL;
bool found = all_settings_dictionary->GetDictionaryWithoutPathExpansion(
wide_host, &host_settings_dictionary);
DCHECK(found);
ContentSettings settings;
GetSettingsFromDictionary(host_settings_dictionary, &settings);
host_content_settings_[WideToUTF8(wide_host)] = settings;
}
}
}
// static
void HostContentSettingsMap::RegisterUserPrefs(PrefService* prefs) {
prefs->RegisterDictionaryPref(prefs::kDefaultContentSettings);
prefs->RegisterDictionaryPref(prefs::kPerHostContentSettings);
}
ContentSetting HostContentSettingsMap::GetDefaultContentSetting(
ContentSettingsType content_type) const {
AutoLock auto_lock(lock_);
return default_content_settings_.settings[content_type];
}
ContentSetting HostContentSettingsMap::GetContentSetting(
const std::string& host,
ContentSettingsType content_type) const {
AutoLock auto_lock(lock_);
HostContentSettings::const_iterator i(host_content_settings_.find(host));
return (i == host_content_settings_.end()) ?
CONTENT_SETTING_DEFAULT : i->second.settings[content_type];
}
ContentSettings HostContentSettingsMap::GetContentSettings(
const std::string& host) const {
AutoLock auto_lock(lock_);
HostContentSettings::const_iterator i(host_content_settings_.find(host));
return (i == host_content_settings_.end()) ? ContentSettings() : i->second;
}
void HostContentSettingsMap::GetHostContentSettingsForOneType(
ContentSettingsType content_type,
HostContentSettingsForOneType* settings) const {
DCHECK(settings);
settings->clear();
AutoLock auto_lock(lock_);
for (HostContentSettings::const_iterator i(host_content_settings_.begin());
i != host_content_settings_.end(); ++i) {
ContentSetting setting = i->second.settings[content_type];
if (setting != CONTENT_SETTING_DEFAULT)
(*settings)[i->first] = setting;
}
}
void HostContentSettingsMap::SetDefaultContentSetting(
ContentSettingsType content_type,
ContentSetting setting) {
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
{
AutoLock auto_lock(lock_);
default_content_settings_.settings[content_type] = setting;
}
profile_->GetPrefs()->GetMutableDictionary(prefs::kDefaultContentSettings)->
SetWithoutPathExpansion(std::wstring(kTypeNames[content_type]),
Value::CreateIntegerValue(setting));
}
void HostContentSettingsMap::SetContentSetting(const std::string& host,
ContentSettingsType content_type,
ContentSetting setting) {
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
bool all_default = true;
{
AutoLock auto_lock(lock_);
if (!host_content_settings_.count(host))
host_content_settings_[host] = ContentSettings();
HostContentSettings::iterator i(host_content_settings_.find(host));
ContentSettings& settings = i->second;
settings.settings[content_type] = setting;
for (size_t i = 0; i < arraysize(settings.settings); ++i) {
if (settings.settings[i] != CONTENT_SETTING_DEFAULT) {
all_default = false;
break;
}
}
if (all_default)
host_content_settings_.erase(i);
}
std::wstring wide_host(UTF8ToWide(host));
DictionaryValue* all_settings_dictionary =
profile_->GetPrefs()->GetMutableDictionary(
prefs::kPerHostContentSettings);
if (all_default) {
all_settings_dictionary->RemoveWithoutPathExpansion(wide_host, NULL);
return;
}
DictionaryValue* host_settings_dictionary;
bool found = all_settings_dictionary->GetDictionaryWithoutPathExpansion(
wide_host, &host_settings_dictionary);
if (!found) {
host_settings_dictionary = new DictionaryValue;
all_settings_dictionary->SetWithoutPathExpansion(
wide_host, host_settings_dictionary);
}
host_settings_dictionary->SetWithoutPathExpansion(
std::wstring(kTypeNames[content_type]),
Value::CreateIntegerValue(setting));
}
void HostContentSettingsMap::ResetToDefaults() {
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
{
AutoLock auto_lock(lock_);
default_content_settings_ = ContentSettings();
host_content_settings_.clear();
}
profile_->GetPrefs()->ClearPref(prefs::kDefaultContentSettings);
profile_->GetPrefs()->ClearPref(prefs::kPerHostContentSettings);
}
HostContentSettingsMap::~HostContentSettingsMap() {
}
void HostContentSettingsMap::GetSettingsFromDictionary(
const DictionaryValue* dictionary,
ContentSettings* settings) {
for (DictionaryValue::key_iterator i(dictionary->begin_keys());
i != dictionary->end_keys(); ++i) {
std::wstring content_type(*i);
int setting = CONTENT_SETTING_DEFAULT;
bool found = dictionary->GetIntegerWithoutPathExpansion(content_type,
&setting);
DCHECK(found);
for (size_t type = 0; type < arraysize(kTypeNames); ++type) {
if (std::wstring(kTypeNames[type]) == content_type) {
settings->settings[type] = static_cast<ContentSetting>(setting);
break;
}
}
}
}
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