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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/net/chrome_cookie_policy.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/profile.h"
#include "chrome/common/pref_service.h"
#include "chrome/common/pref_names.h"
#include "googleurl/src/gurl.h"
#include "net/base/registry_controlled_domain.h"
ChromeCookiePolicy::ChromeCookiePolicy(Profile* profile) : profile_(profile) {
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
const DictionaryValue* cookie_exceptions_dict =
profile_->GetPrefs()->GetDictionary(prefs::kCookieExceptions);
// Careful: The returned value could be NULL if the pref has never been set.
if (cookie_exceptions_dict != NULL) {
for (DictionaryValue::key_iterator i(cookie_exceptions_dict->begin_keys());
i != cookie_exceptions_dict->end_keys(); ++i) {
std::wstring wide_domain(*i);
int content_settings = 0;
bool success = cookie_exceptions_dict->GetIntegerWithoutPathExpansion(
wide_domain, &content_settings);
DCHECK(success);
per_domain_policy_[WideToUTF8(wide_domain)] =
static_cast<ContentPermissionType>(content_settings);
}
}
net::CookiePolicy::set_type(net::CookiePolicy::FromInt(
profile_->GetPrefs()->GetInteger(prefs::kCookieBehavior)));
}
// static
void ChromeCookiePolicy::RegisterUserPrefs(PrefService* prefs) {
prefs->RegisterDictionaryPref(prefs::kCookieExceptions);
prefs->RegisterIntegerPref(prefs::kCookieBehavior,
net::CookiePolicy::ALLOW_ALL_COOKIES);
}
void ChromeCookiePolicy::ResetToDefaults() {
net::CookiePolicy::set_type(net::CookiePolicy::ALLOW_ALL_COOKIES);
per_domain_policy_.clear();
profile_->GetPrefs()->ClearPref(prefs::kCookieBehavior);
profile_->GetPrefs()->ClearPref(prefs::kCookieExceptions);
}
bool ChromeCookiePolicy::CanGetCookies(const GURL& url,
const GURL& first_party_for_cookies) {
AutoLock auto_lock(lock_);
ContentPermissionType permission = CheckPermissionForHost(url.host());
switch (permission) {
case CONTENT_PERMISSION_TYPE_DEFAULT:
return net::CookiePolicy::CanGetCookies(url, first_party_for_cookies);
case CONTENT_PERMISSION_TYPE_BLOCK:
return false;
case CONTENT_PERMISSION_TYPE_ALLOW:
return true;
case CONTENT_PERMISSION_TYPE_ASK:
// TODO(darin): ask the user.
default:
NOTREACHED();
}
return false; // To avoid compiler warnings.
}
bool ChromeCookiePolicy::CanSetCookie(const GURL& url,
const GURL& first_party_for_cookies) {
AutoLock auto_lock(lock_);
ContentPermissionType permission = CheckPermissionForHost(url.host());
switch (permission) {
case CONTENT_PERMISSION_TYPE_DEFAULT:
return net::CookiePolicy::CanSetCookie(url, first_party_for_cookies);
case CONTENT_PERMISSION_TYPE_BLOCK:
return false;
case CONTENT_PERMISSION_TYPE_ALLOW:
return true;
case CONTENT_PERMISSION_TYPE_ASK:
// TODO(darin): ask the user.
default:
NOTREACHED();
}
return false; // To avoid compiler warnings.
}
void ChromeCookiePolicy::SetPerDomainPermission(const std::string& domain,
ContentPermissionType type) {
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
if (domain.empty())
return;
{
AutoLock auto_lock(lock_);
if (type == CONTENT_PERMISSION_TYPE_DEFAULT)
per_domain_policy_.erase(domain);
else
per_domain_policy_[domain] = type;
}
DictionaryValue* cookie_exceptions_dict =
profile_->GetPrefs()->GetMutableDictionary(prefs::kCookieExceptions);
std::wstring wide_domain(UTF8ToWide(domain));
if (type == CONTENT_PERMISSION_TYPE_DEFAULT) {
cookie_exceptions_dict->RemoveWithoutPathExpansion(wide_domain, NULL);
} else {
cookie_exceptions_dict->SetWithoutPathExpansion(wide_domain,
Value::CreateIntegerValue(type));
}
}
void ChromeCookiePolicy::set_type(Type type) {
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
AutoLock auto_lock(lock_);
net::CookiePolicy::set_type(type);
profile_->GetPrefs()->SetInteger(prefs::kCookieBehavior, type);
}
ContentPermissionType ChromeCookiePolicy::CheckPermissionForHost(
const std::string& host) const {
std::string search_key(host);
while (!search_key.empty()) {
CookiePolicies::const_iterator i(per_domain_policy_.find(search_key));
if (i != per_domain_policy_.end())
return i->second;
size_t dot_pos = search_key.find_first_of('.');
if (dot_pos == std::string::npos)
break;
search_key = search_key.substr(dot_pos+1);
}
return CONTENT_PERMISSION_TYPE_DEFAULT;
}
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