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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 "chrome/browser/google_apis/auth_service.h"
#include <string>
#include <vector>
#include "base/bind.h"
#include "base/message_loop_proxy.h"
#include "chrome/browser/google_apis/auth_service_observer.h"
#include "chrome/browser/google_apis/base_operations.h"
#include "chrome/browser/google_apis/task_util.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/signin/token_service.h"
#include "chrome/browser/signin/token_service_factory.h"
#include "chrome/common/chrome_notification_types.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/notification_types.h"
#include "google_apis/gaia/gaia_constants.h"
#if defined(OS_CHROMEOS)
#include "chrome/browser/chromeos/login/user_manager.h"
#endif // OS_CHROMEOS
using content::BrowserThread;
namespace google_apis {
void AuthService::Initialize(Profile* profile) {
profile_ = profile;
// Get OAuth2 refresh token (if we have any) and register for its updates.
TokenService* service = TokenServiceFactory::GetForProfile(profile_);
refresh_token_ = service->GetOAuth2LoginRefreshToken();
registrar_.Add(this,
chrome::NOTIFICATION_TOKEN_AVAILABLE,
content::Source<TokenService>(service));
registrar_.Add(this,
chrome::NOTIFICATION_TOKEN_REQUEST_FAILED,
content::Source<TokenService>(service));
if (!refresh_token_.empty())
FOR_EACH_OBSERVER(AuthServiceObserver,
observers_,
OnOAuth2RefreshTokenChanged());
}
AuthService::AuthService(const std::vector<std::string>& scopes)
: profile_(NULL),
scopes_(scopes),
ALLOW_THIS_IN_INITIALIZER_LIST(weak_ptr_factory_(this)) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
}
AuthService::~AuthService() {
}
void AuthService::StartAuthentication(OperationRegistry* registry,
const AuthStatusCallback& callback) {
scoped_refptr<base::MessageLoopProxy> relay_proxy(
base::MessageLoopProxy::current());
if (HasAccessToken()) {
relay_proxy->PostTask(FROM_HERE,
base::Bind(callback, google_apis::HTTP_SUCCESS, access_token_));
} else if (HasRefreshToken()) {
BrowserThread::PostTask(
BrowserThread::UI,
FROM_HERE,
base::Bind(&AuthService::StartAuthenticationOnUIThread,
weak_ptr_factory_.GetWeakPtr(),
registry,
CreateRelayCallback(
base::Bind(&AuthService::OnAuthCompleted,
weak_ptr_factory_.GetWeakPtr(),
callback))));
} else {
relay_proxy->PostTask(FROM_HERE,
base::Bind(callback, google_apis::GDATA_NOT_READY, std::string()));
}
}
void AuthService::StartAuthenticationOnUIThread(
OperationRegistry* registry,
const AuthStatusCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
// We have refresh token, let's gets authenticated.
(new AuthOperation(registry, callback, scopes_, refresh_token_))->Start();
}
void AuthService::OnAuthCompleted(const AuthStatusCallback& callback,
GDataErrorCode error,
const std::string& access_token) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
if (error == HTTP_SUCCESS)
access_token_ = access_token;
// TODO(zelidrag): Add retry, back-off logic when things go wrong here.
callback.Run(error, access_token);
}
void AuthService::AddObserver(AuthServiceObserver* observer) {
observers_.AddObserver(observer);
}
void AuthService::RemoveObserver(AuthServiceObserver* observer) {
observers_.RemoveObserver(observer);
}
void AuthService::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK(type == chrome::NOTIFICATION_TOKEN_AVAILABLE ||
type == chrome::NOTIFICATION_TOKEN_REQUEST_FAILED);
TokenService::TokenAvailableDetails* token_details =
content::Details<TokenService::TokenAvailableDetails>(details).ptr();
if (token_details->service() != GaiaConstants::kGaiaOAuth2LoginRefreshToken)
return;
access_token_.clear();
if (type == chrome::NOTIFICATION_TOKEN_AVAILABLE) {
TokenService* service = TokenServiceFactory::GetForProfile(profile_);
refresh_token_ = service->GetOAuth2LoginRefreshToken();
} else {
refresh_token_.clear();
}
FOR_EACH_OBSERVER(AuthServiceObserver,
observers_,
OnOAuth2RefreshTokenChanged());
}
// static
bool AuthService::CanAuthenticate(Profile* profile) {
#if defined(OS_CHROMEOS)
if (!chromeos::UserManager::Get()->IsUserLoggedIn() ||
chromeos::UserManager::Get()->IsLoggedInAsGuest() ||
chromeos::UserManager::Get()->IsLoggedInAsDemoUser())
return false;
#endif // OS_CHROMEOS
// Authentication cannot be done with the incognito mode profile.
if (profile->IsOffTheRecord())
return false;
return true;
}
} // namespace google_apis
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