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// Copyright (c) 2011 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/service/cloud_print/cloud_print_auth.h"
#include "base/bind.h"
#include "base/string_util.h"
#include "chrome/common/net/gaia/gaia_urls.h"
#include "chrome/service/cloud_print/cloud_print_consts.h"
#include "chrome/service/cloud_print/cloud_print_helpers.h"
#include "chrome/service/cloud_print/cloud_print_token_store.h"
#include "chrome/service/gaia/service_gaia_authenticator.h"
#include "chrome/service/net/service_url_request_context.h"
#include "chrome/service/service_process.h"
CloudPrintAuth::CloudPrintAuth(
Client* client,
const GURL& cloud_print_server_url,
const base::DictionaryValue* print_sys_settings,
const gaia::OAuthClientInfo& oauth_client_info,
const std::string& proxy_id)
: client_(client),
oauth_client_info_(oauth_client_info),
cloud_print_server_url_(cloud_print_server_url),
proxy_id_(proxy_id) {
DCHECK(client);
if (print_sys_settings) {
// It is possible to have no print settings specified.
print_system_settings_.reset(print_sys_settings->DeepCopy());
}
}
CloudPrintAuth::~CloudPrintAuth() {
}
void CloudPrintAuth::AuthenticateWithLsid(
const std::string& lsid,
const std::string& last_robot_refresh_token,
const std::string& last_robot_email,
const std::string& last_user_email) {
// Keeping VLOGs for Cloud Print proxy logging. It is convinient for finding
// issues with GCP in the field, where only release version is avaialble.
VLOG(1) << "CP_AUTH: Authenticating with LSID";
scoped_refptr<ServiceGaiaAuthenticator> gaia_auth_for_print(
new ServiceGaiaAuthenticator(
kProxyAuthUserAgent, kCloudPrintGaiaServiceId,
GaiaUrls::GetInstance()->client_login_url(),
g_service_process->io_thread()->message_loop_proxy()));
gaia_auth_for_print->set_message_loop(MessageLoop::current());
if (gaia_auth_for_print->AuthenticateWithLsid(lsid)) {
// Stash away the user email so we can save it in prefs.
user_email_ = gaia_auth_for_print->email();
// If the same user is re-enabling Cloud Print and we have stashed robot
// credentials, we will use those.
if ((0 == base::strcasecmp(user_email_.c_str(), last_user_email.c_str())) &&
!last_robot_refresh_token.empty() &&
!last_robot_email.empty()) {
AuthenticateWithRobotToken(last_robot_refresh_token,
last_robot_email);
}
AuthenticateWithToken(gaia_auth_for_print->auth_token());
} else {
// Notify client about authentication error.
client_->OnInvalidCredentials();
}
}
void CloudPrintAuth::AuthenticateWithToken(
const std::string& cloud_print_token) {
VLOG(1) << "CP_AUTH: Authenticating with token";
client_login_token_ = cloud_print_token;
// We need to get the credentials of the robot here.
GURL get_authcode_url =
CloudPrintHelpers::GetUrlForGetAuthCode(cloud_print_server_url_,
oauth_client_info_.client_id,
proxy_id_);
request_ = new CloudPrintURLFetcher;
request_->StartGetRequest(get_authcode_url,
this,
kCloudPrintAuthMaxRetryCount,
std::string());
}
void CloudPrintAuth::AuthenticateWithRobotToken(
const std::string& robot_oauth_refresh_token,
const std::string& robot_email) {
VLOG(1) << "CP_AUTH: Authenticating with robot token";
robot_email_ = robot_email;
refresh_token_ = robot_oauth_refresh_token;
RefreshAccessToken();
}
void CloudPrintAuth::AuthenticateWithRobotAuthCode(
const std::string& robot_oauth_auth_code,
const std::string& robot_email) {
VLOG(1) << "CP_AUTH: Authenticating with robot auth code";
robot_email_ = robot_email;
// Now that we have an auth code we need to get the refresh and access tokens.
oauth_client_.reset(new gaia::GaiaOAuthClient(
gaia::kGaiaOAuth2Url,
g_service_process->GetServiceURLRequestContextGetter()));
oauth_client_->GetTokensFromAuthCode(oauth_client_info_,
robot_oauth_auth_code,
kCloudPrintAuthMaxRetryCount,
this);
}
void CloudPrintAuth::RefreshAccessToken() {
oauth_client_.reset(new gaia::GaiaOAuthClient(
gaia::kGaiaOAuth2Url,
g_service_process->GetServiceURLRequestContextGetter()));
oauth_client_->RefreshToken(oauth_client_info_,
refresh_token_,
kCloudPrintAuthMaxRetryCount,
this);
}
void CloudPrintAuth::OnGetTokensResponse(const std::string& refresh_token,
const std::string& access_token,
int expires_in_seconds) {
refresh_token_ = refresh_token;
// After saving the refresh token, this is just like having just refreshed
// the access token. Just call OnRefreshTokenResponse.
OnRefreshTokenResponse(access_token, expires_in_seconds);
}
void CloudPrintAuth::OnRefreshTokenResponse(const std::string& access_token,
int expires_in_seconds) {
client_->OnAuthenticationComplete(access_token, refresh_token_,
robot_email_, user_email_);
// Schedule a task to refresh the access token again when it is about to
// expire.
DCHECK(expires_in_seconds > kTokenRefreshGracePeriodSecs);
int64 refresh_delay =
(expires_in_seconds - kTokenRefreshGracePeriodSecs)*1000;
MessageLoop::current()->PostDelayedTask(
FROM_HERE, base::Bind(&CloudPrintAuth::RefreshAccessToken, this),
refresh_delay);
}
void CloudPrintAuth::OnOAuthError() {
// Notify client about authentication error.
client_->OnInvalidCredentials();
}
void CloudPrintAuth::OnNetworkError(int response_code) {
// Since we specify infinite retries on network errors, this should never
// be called.
NOTREACHED() <<
"OnNetworkError invoked when not expected, response code is " <<
response_code;
}
CloudPrintURLFetcher::ResponseAction CloudPrintAuth::HandleJSONData(
const content::URLFetcher* source,
const GURL& url,
base::DictionaryValue* json_data,
bool succeeded) {
if (!succeeded) {
VLOG(1) << "CP_AUTH: Creating robot account failed";
client_->OnInvalidCredentials();
return CloudPrintURLFetcher::STOP_PROCESSING;
}
std::string auth_code;
if (!json_data->GetString(kOAuthCodeValue, &auth_code)) {
VLOG(1) << "CP_AUTH: Creating robot account returned invalid json response";
client_->OnInvalidCredentials();
return CloudPrintURLFetcher::STOP_PROCESSING;
}
json_data->GetString(kXMPPJidValue, &robot_email_);
// Now that we have an auth code we need to get the refresh and access tokens.
oauth_client_.reset(new gaia::GaiaOAuthClient(
gaia::kGaiaOAuth2Url,
g_service_process->GetServiceURLRequestContextGetter()));
oauth_client_->GetTokensFromAuthCode(oauth_client_info_,
auth_code,
kCloudPrintAPIMaxRetryCount,
this);
return CloudPrintURLFetcher::STOP_PROCESSING;
}
CloudPrintURLFetcher::ResponseAction CloudPrintAuth::OnRequestAuthError() {
VLOG(1) << "CP_AUTH: Creating robot account authentication error";
// Notify client about authentication error.
client_->OnInvalidCredentials();
return CloudPrintURLFetcher::STOP_PROCESSING;
}
std::string CloudPrintAuth::GetAuthHeader() {
DCHECK(!client_login_token_.empty());
std::string header;
header = "Authorization: GoogleLogin auth=";
header += client_login_token_;
return header;
}
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