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// Copyright (c) 2012 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 "components/content_settings/core/browser/cookie_settings.h"
#include "base/bind.h"
#include "base/logging.h"
#include "base/prefs/pref_service.h"
#include "components/content_settings/core/browser/content_settings_utils.h"
#include "components/content_settings/core/browser/host_content_settings_map.h"
#include "components/content_settings/core/common/content_settings_pattern.h"
#include "components/content_settings/core/common/pref_names.h"
#include "components/pref_registry/pref_registry_syncable.h"
#include "net/base/net_errors.h"
#include "net/base/static_cookie_policy.h"
#include "url/gurl.h"
namespace {
bool IsValidSetting(ContentSetting setting) {
return (setting == CONTENT_SETTING_ALLOW ||
setting == CONTENT_SETTING_SESSION_ONLY ||
setting == CONTENT_SETTING_BLOCK);
}
bool IsAllowed(ContentSetting setting) {
DCHECK(IsValidSetting(setting));
return (setting == CONTENT_SETTING_ALLOW ||
setting == CONTENT_SETTING_SESSION_ONLY);
}
} // namespace
namespace content_settings {
CookieSettings::CookieSettings(
HostContentSettingsMap* host_content_settings_map,
PrefService* prefs,
const char* extension_scheme)
: host_content_settings_map_(host_content_settings_map),
extension_scheme_(extension_scheme),
block_third_party_cookies_(
prefs->GetBoolean(prefs::kBlockThirdPartyCookies)) {
pref_change_registrar_.Init(prefs);
pref_change_registrar_.Add(
prefs::kBlockThirdPartyCookies,
base::Bind(&CookieSettings::OnBlockThirdPartyCookiesChanged,
base::Unretained(this)));
}
ContentSetting CookieSettings::GetDefaultCookieSetting(
std::string* provider_id) const {
return host_content_settings_map_->GetDefaultContentSetting(
CONTENT_SETTINGS_TYPE_COOKIES, provider_id);
}
bool CookieSettings::IsReadingCookieAllowed(const GURL& url,
const GURL& first_party_url) const {
ContentSetting setting = GetCookieSetting(url, first_party_url, false, NULL);
return IsAllowed(setting);
}
bool CookieSettings::IsSettingCookieAllowed(const GURL& url,
const GURL& first_party_url) const {
ContentSetting setting = GetCookieSetting(url, first_party_url, true, NULL);
return IsAllowed(setting);
}
bool CookieSettings::IsCookieSessionOnly(const GURL& origin) const {
ContentSetting setting = GetCookieSetting(origin, origin, true, NULL);
DCHECK(IsValidSetting(setting));
return (setting == CONTENT_SETTING_SESSION_ONLY);
}
void CookieSettings::GetCookieSettings(
ContentSettingsForOneType* settings) const {
return host_content_settings_map_->GetSettingsForOneType(
CONTENT_SETTINGS_TYPE_COOKIES, std::string(), settings);
}
void CookieSettings::RegisterProfilePrefs(
user_prefs::PrefRegistrySyncable* registry) {
registry->RegisterBooleanPref(
prefs::kBlockThirdPartyCookies, false,
user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
}
void CookieSettings::SetDefaultCookieSetting(ContentSetting setting) {
DCHECK(IsValidSetting(setting));
host_content_settings_map_->SetDefaultContentSetting(
CONTENT_SETTINGS_TYPE_COOKIES, setting);
}
void CookieSettings::SetCookieSetting(
const ContentSettingsPattern& primary_pattern,
const ContentSettingsPattern& secondary_pattern,
ContentSetting setting) {
DCHECK(IsValidSetting(setting));
if (setting == CONTENT_SETTING_SESSION_ONLY) {
DCHECK(secondary_pattern == ContentSettingsPattern::Wildcard());
}
host_content_settings_map_->SetContentSetting(
primary_pattern, secondary_pattern, CONTENT_SETTINGS_TYPE_COOKIES,
std::string(), setting);
}
void CookieSettings::ResetCookieSetting(
const ContentSettingsPattern& primary_pattern,
const ContentSettingsPattern& secondary_pattern) {
host_content_settings_map_->SetContentSetting(
primary_pattern, secondary_pattern, CONTENT_SETTINGS_TYPE_COOKIES,
std::string(), CONTENT_SETTING_DEFAULT);
}
void CookieSettings::ShutdownOnUIThread() {
DCHECK(thread_checker_.CalledOnValidThread());
pref_change_registrar_.RemoveAll();
}
ContentSetting CookieSettings::GetCookieSetting(const GURL& url,
const GURL& first_party_url,
bool setting_cookie,
SettingSource* source) const {
if (HostContentSettingsMap::ShouldAllowAllContent(
url, first_party_url, CONTENT_SETTINGS_TYPE_COOKIES))
return CONTENT_SETTING_ALLOW;
// First get any host-specific settings.
SettingInfo info;
scoped_ptr<base::Value> value = host_content_settings_map_->GetWebsiteSetting(
url, first_party_url, CONTENT_SETTINGS_TYPE_COOKIES, std::string(),
&info);
if (source)
*source = info.source;
// If no explicit exception has been made and third-party cookies are blocked
// by default, apply that rule.
if (info.primary_pattern.MatchesAllHosts() &&
info.secondary_pattern.MatchesAllHosts() &&
ShouldBlockThirdPartyCookies() &&
!first_party_url.SchemeIs(extension_scheme_)) {
net::StaticCookiePolicy policy(
net::StaticCookiePolicy::BLOCK_ALL_THIRD_PARTY_COOKIES);
int rv;
if (setting_cookie)
rv = policy.CanSetCookie(url, first_party_url);
else
rv = policy.CanGetCookies(url, first_party_url);
DCHECK_NE(net::ERR_IO_PENDING, rv);
if (rv != net::OK)
return CONTENT_SETTING_BLOCK;
}
// We should always have a value, at least from the default provider.
DCHECK(value.get());
return ValueToContentSetting(value.get());
}
CookieSettings::~CookieSettings() {
}
void CookieSettings::OnBlockThirdPartyCookiesChanged() {
DCHECK(thread_checker_.CalledOnValidThread());
base::AutoLock auto_lock(lock_);
block_third_party_cookies_ = pref_change_registrar_.prefs()->GetBoolean(
prefs::kBlockThirdPartyCookies);
}
bool CookieSettings::ShouldBlockThirdPartyCookies() const {
base::AutoLock auto_lock(lock_);
return block_third_party_cookies_;
}
} // namespace content_settings
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