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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/geolocation/geolocation_content_settings_map.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/chrome_thread.h"
#include "chrome/browser/pref_service.h"
#include "chrome/browser/profile.h"
#include "chrome/browser/scoped_pref_update.h"
#include "chrome/common/notification_service.h"
#include "chrome/common/notification_type.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/url_constants.h"
#include "net/base/dns_util.h"
#include "net/base/static_cookie_policy.h"
// static
const ContentSetting
GeolocationContentSettingsMap::kDefaultSetting = CONTENT_SETTING_ASK;
GeolocationContentSettingsMap::GeolocationContentSettingsMap(Profile* profile)
: profile_(profile), updating_preferences_(false) {
PrefService* prefs = profile_->GetPrefs();
// Read global defaults.
default_content_setting_ = IntToContentSetting(
prefs->GetInteger(prefs::kGeolocationDefaultContentSetting));
if (default_content_setting_ == CONTENT_SETTING_DEFAULT)
default_content_setting_ = kDefaultSetting;
// Read exceptions from the preference service.
ReadExceptions();
prefs->AddPrefObserver(prefs::kGeolocationContentSettings, this);
}
// static
void GeolocationContentSettingsMap::RegisterUserPrefs(PrefService* prefs) {
prefs->RegisterIntegerPref(prefs::kGeolocationDefaultContentSetting,
CONTENT_SETTING_ASK);
prefs->RegisterDictionaryPref(prefs::kGeolocationContentSettings);
}
// static
std::string GeolocationContentSettingsMap::OriginToString(const GURL& origin) {
std::string port_component((origin.IntPort() != url_parse::PORT_UNSPECIFIED) ?
":" + origin.port() : "");
std::string scheme_component(!origin.SchemeIs(chrome::kHttpScheme) ?
origin.scheme() + chrome::kStandardSchemeSeparator : "");
return scheme_component + origin.host() + port_component;
}
ContentSetting GeolocationContentSettingsMap::GetDefaultContentSetting() const {
AutoLock auto_lock(lock_);
return default_content_setting_;
}
ContentSetting GeolocationContentSettingsMap::GetContentSetting(
const GURL& requesting_url,
const GURL& embedding_url) const {
DCHECK(requesting_url.is_valid() && embedding_url.is_valid());
GURL requesting_origin(requesting_url.GetOrigin());
GURL embedding_origin(embedding_url.GetOrigin());
DCHECK(requesting_origin.is_valid() && embedding_origin.is_valid());
AutoLock auto_lock(lock_);
AllOriginsSettings::const_iterator i(content_settings_.find(
requesting_origin));
if (i != content_settings_.end()) {
OneOriginSettings::const_iterator j(i->second.find(embedding_origin));
if (j != i->second.end())
return j->second;
if (requesting_origin != embedding_origin) {
OneOriginSettings::const_iterator any_embedder(i->second.find(GURL()));
if (any_embedder != i->second.end())
return any_embedder->second;
}
}
return default_content_setting_;
}
GeolocationContentSettingsMap::AllOriginsSettings
GeolocationContentSettingsMap::GetAllOriginsSettings() const {
AutoLock auto_lock(lock_);
return content_settings_;
}
void GeolocationContentSettingsMap::SetDefaultContentSetting(
ContentSetting setting) {
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
{
AutoLock auto_lock(lock_);
default_content_setting_ =
(setting == CONTENT_SETTING_DEFAULT) ? kDefaultSetting : setting;
}
profile_->GetPrefs()->SetInteger(prefs::kGeolocationDefaultContentSetting,
default_content_setting_);
}
void GeolocationContentSettingsMap::SetContentSetting(
const GURL& requesting_url,
const GURL& embedding_url,
ContentSetting setting) {
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
DCHECK(requesting_url.is_valid());
DCHECK(embedding_url.is_valid() || embedding_url.is_empty());
GURL requesting_origin(requesting_url.GetOrigin());
GURL embedding_origin(embedding_url.GetOrigin());
DCHECK(requesting_origin.is_valid() &&
(embedding_origin.is_valid() || embedding_url.is_empty()));
std::wstring wide_requesting_origin(UTF8ToWide(requesting_origin.spec()));
std::wstring wide_embedding_origin(UTF8ToWide(embedding_origin.spec()));
DictionaryValue* all_settings_dictionary =
profile_->GetPrefs()->GetMutableDictionary(
prefs::kGeolocationContentSettings);
updating_preferences_ = true;
{
ScopedPrefUpdate update(profile_->GetPrefs(),
prefs::kGeolocationContentSettings);
AutoLock auto_lock(lock_);
DictionaryValue* requesting_origin_settings_dictionary;
all_settings_dictionary->GetDictionaryWithoutPathExpansion(
wide_requesting_origin, &requesting_origin_settings_dictionary);
if (setting == CONTENT_SETTING_DEFAULT) {
if (content_settings_.count(requesting_origin) &&
content_settings_[requesting_origin].count(embedding_origin)) {
if (content_settings_[requesting_origin].size() == 1) {
all_settings_dictionary->RemoveWithoutPathExpansion(
wide_requesting_origin, NULL);
content_settings_.erase(requesting_origin);
} else {
requesting_origin_settings_dictionary->RemoveWithoutPathExpansion(
wide_embedding_origin, NULL);
content_settings_[requesting_origin].erase(embedding_origin);
}
}
} else {
if (!content_settings_.count(requesting_origin)) {
requesting_origin_settings_dictionary = new DictionaryValue;
all_settings_dictionary->SetWithoutPathExpansion(
wide_requesting_origin, requesting_origin_settings_dictionary);
}
content_settings_[requesting_origin][embedding_origin] = setting;
DCHECK(requesting_origin_settings_dictionary);
requesting_origin_settings_dictionary->SetWithoutPathExpansion(
wide_embedding_origin, Value::CreateIntegerValue(setting));
}
}
updating_preferences_ = false;
}
void GeolocationContentSettingsMap::ClearOneRequestingOrigin(
const GURL& requesting_origin) {
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
DCHECK(requesting_origin.is_valid());
{
AutoLock auto_lock(lock_);
AllOriginsSettings::iterator i(content_settings_.find(requesting_origin));
if (i == content_settings_.end())
return;
content_settings_.erase(i);
}
PrefService* prefs = profile_->GetPrefs();
DictionaryValue* all_settings_dictionary =
prefs->GetMutableDictionary(prefs::kGeolocationContentSettings);
updating_preferences_ = true;
{
ScopedPrefUpdate update(prefs, prefs::kGeolocationContentSettings);
all_settings_dictionary->RemoveWithoutPathExpansion(
UTF8ToWide(requesting_origin.spec()), NULL);
}
updating_preferences_ = false;
}
void GeolocationContentSettingsMap::ResetToDefault() {
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
{
AutoLock auto_lock(lock_);
default_content_setting_ = kDefaultSetting;
content_settings_.clear();
}
PrefService* prefs = profile_->GetPrefs();
updating_preferences_ = true;
{
prefs->ClearPref(prefs::kGeolocationDefaultContentSetting);
prefs->ClearPref(prefs::kGeolocationContentSettings);
}
updating_preferences_ = false;
}
void GeolocationContentSettingsMap::Observe(
NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
DCHECK(NotificationType::PREF_CHANGED == type);
DCHECK_EQ(profile_->GetPrefs(), Source<PrefService>(source).ptr());
if (updating_preferences_)
return;
std::wstring* name = Details<std::wstring>(details).ptr();
if (prefs::kGeolocationContentSettings == *name) {
ReadExceptions();
} else {
NOTREACHED() << "Unexpected preference observed.";
}
}
GeolocationContentSettingsMap::~GeolocationContentSettingsMap() {
profile_->GetPrefs()->RemovePrefObserver(prefs::kGeolocationContentSettings,
this);
}
void GeolocationContentSettingsMap::ReadExceptions() {
PrefService* prefs = profile_->GetPrefs();
const DictionaryValue* all_settings_dictionary =
prefs->GetDictionary(prefs::kGeolocationContentSettings);
content_settings_.clear();
// 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) {
const std::wstring& wide_origin(*i);
DictionaryValue* requesting_origin_settings_dictionary = NULL;
bool found = all_settings_dictionary->GetDictionaryWithoutPathExpansion(
wide_origin, &requesting_origin_settings_dictionary);
DCHECK(found);
OneOriginSettings* requesting_origin_settings =
&content_settings_[GURL(WideToUTF8(wide_origin))];
GetOneOriginSettingsFromDictionary(
requesting_origin_settings_dictionary,
requesting_origin_settings);
}
}
}
// static
void GeolocationContentSettingsMap::GetOneOriginSettingsFromDictionary(
const DictionaryValue* dictionary,
OneOriginSettings* one_origin_settings) {
for (DictionaryValue::key_iterator i(dictionary->begin_keys());
i != dictionary->end_keys(); ++i) {
const std::wstring& target(*i);
int setting = kDefaultSetting;
bool found = dictionary->GetIntegerWithoutPathExpansion(target, &setting);
DCHECK(found);
(*one_origin_settings)[GURL(WideToUTF8(target))] =
IntToContentSetting(setting);
}
}
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