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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/policy/device_account_initializer.h"
#include <utility>
#include "base/base64.h"
#include "base/command_line.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/single_thread_task_runner.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/device_identity/device_oauth2_token_service.h"
#include "chrome/browser/device_identity/device_oauth2_token_service_factory.h"
#include "components/policy/core/common/cloud/dm_auth.h"
#include "google_apis/gaia/gaia_auth_util.h"
#include "google_apis/gaia/gaia_urls.h"
#include "net/http/http_status_code.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"
namespace em = enterprise_management;
namespace policy {
DeviceAccountInitializer::DeviceAccountInitializer(CloudPolicyClient* client,
Delegate* delegate)
: client_(client), delegate_(delegate), handling_request_(false) {
client_->AddObserver(this);
}
DeviceAccountInitializer::~DeviceAccountInitializer() {
Stop();
client_->RemoveObserver(this);
}
void DeviceAccountInitializer::FetchToken() {
CHECK(client_->is_registered());
handling_request_ = true;
client_->FetchRobotAuthCodes(
DMAuth::FromDMToken(client_->dm_token()),
delegate_->GetRobotAuthCodeDeviceType(), delegate_->GetRobotOAuthScopes(),
base::BindOnce(&DeviceAccountInitializer::OnRobotAuthCodesFetched,
weak_ptr_factory_.GetWeakPtr()));
}
void DeviceAccountInitializer::OnRobotAuthCodesFetched(
DeviceManagementStatus status,
const std::string& auth_code) {
if (status != DM_STATUS_SUCCESS) {
handling_request_ = false;
delegate_->OnDeviceAccountTokenFetchError(status);
return;
}
if (auth_code.empty()) {
// If the server doesn't provide an auth code, skip the robot auth setup.
// This allows clients running against the test server to transparently skip
// robot auth.
handling_request_ = false;
delegate_->OnDeviceAccountTokenFetched(true);
return;
}
gaia::OAuthClientInfo client_info;
client_info.client_id = GaiaUrls::GetInstance()->oauth2_chrome_client_id();
client_info.client_secret =
GaiaUrls::GetInstance()->oauth2_chrome_client_secret();
client_info.redirect_uri = "oob";
DCHECK(delegate_->GetURLLoaderFactory());
// Use the system request context to avoid sending user cookies.
gaia_oauth_client_ =
std::make_unique<gaia::GaiaOAuthClient>(delegate_->GetURLLoaderFactory());
gaia_oauth_client_->GetTokensFromAuthCode(client_info, auth_code,
0 /* max_retries */, this);
}
// GaiaOAuthClient::Delegate callback for OAuth2 refresh token fetched.
void DeviceAccountInitializer::OnGetTokensResponse(
const std::string& refresh_token,
const std::string& access_token,
int expires_in_seconds) {
robot_refresh_token_ = refresh_token;
handling_request_ = false;
delegate_->OnDeviceAccountTokenFetched(false);
}
// GaiaOAuthClient::Delegate
void DeviceAccountInitializer::OnRefreshTokenResponse(
const std::string& access_token,
int expires_in_seconds) {
// We never use the code that should trigger this callback.
handling_request_ = false;
LOG(FATAL) << "Unexpected callback invoked.";
}
// GaiaOAuthClient::Delegate OAuth2 error when fetching refresh token request.
void DeviceAccountInitializer::OnOAuthError() {
// OnOAuthError is only called if the request is bad (malformed) or the
// response is bad (empty access token returned).
LOG(ERROR) << "OAuth protocol error while fetching API refresh token.";
handling_request_ = false;
delegate_->OnDeviceAccountTokenFetchError(/*dm_status=*/std::nullopt);
}
// GaiaOAuthClient::Delegate network error when fetching refresh token.
void DeviceAccountInitializer::OnNetworkError(int response_code) {
LOG(ERROR) << "Network error while fetching API refresh token: "
<< response_code;
handling_request_ = false;
delegate_->OnDeviceAccountTokenFetchError(/*dm_status=*/std::nullopt);
}
void DeviceAccountInitializer::StoreToken() {
handling_request_ = true;
DeviceOAuth2TokenServiceFactory::Get()->SetAndSaveRefreshToken(
robot_refresh_token_,
base::BindOnce(&DeviceAccountInitializer::HandleStoreRobotAuthTokenResult,
weak_ptr_factory_.GetWeakPtr()));
}
void DeviceAccountInitializer::HandleStoreRobotAuthTokenResult(bool result) {
handling_request_ = false;
if (!result) {
LOG(ERROR) << "Failed to store API refresh token.";
delegate_->OnDeviceAccountTokenStoreError();
return;
}
delegate_->OnDeviceAccountTokenStored();
}
void DeviceAccountInitializer::Stop() {
handling_request_ = false;
weak_ptr_factory_.InvalidateWeakPtrs();
}
void DeviceAccountInitializer::OnClientError(CloudPolicyClient* client) {
if (!handling_request_)
return;
DCHECK_EQ(client_, client);
handling_request_ = false;
delegate_->OnDeviceAccountClientError(client->last_dm_status());
}
} // namespace policy
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