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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 "remoting/host/setup/host_starter.h"
#include "base/guid.h"
#include "base/thread_task_runner_handle.h"
#include "base/values.h"
#include "google_apis/google_api_keys.h"
#include "remoting/host/pin_hash.h"
#include "remoting/host/setup/oauth_helper.h"
namespace {
const int kMaxGetTokensRetries = 3;
} // namespace
namespace remoting {
HostStarter::HostStarter(
scoped_ptr<gaia::GaiaOAuthClient> oauth_client,
scoped_ptr<remoting::ServiceClient> service_client,
scoped_ptr<remoting::DaemonController> daemon_controller)
: oauth_client_(oauth_client.Pass()),
service_client_(service_client.Pass()),
daemon_controller_(daemon_controller.Pass()),
consent_to_data_collection_(false),
weak_ptr_factory_(this),
weak_ptr_(weak_ptr_factory_.GetWeakPtr()) {
main_task_runner_ = base::ThreadTaskRunnerHandle::Get();
}
HostStarter::~HostStarter() {
}
scoped_ptr<HostStarter> HostStarter::Create(
const std::string& oauth2_token_url,
const std::string& chromoting_hosts_url,
net::URLRequestContextGetter* url_request_context_getter) {
scoped_ptr<gaia::GaiaOAuthClient> oauth_client(
new gaia::GaiaOAuthClient(
oauth2_token_url, url_request_context_getter));
scoped_ptr<remoting::ServiceClient> service_client(
new remoting::ServiceClient(
chromoting_hosts_url, url_request_context_getter));
scoped_ptr<remoting::DaemonController> daemon_controller(
remoting::DaemonController::Create());
return scoped_ptr<HostStarter>(
new HostStarter(oauth_client.Pass(), service_client.Pass(),
daemon_controller.Pass()));
}
void HostStarter::StartHost(
const std::string& host_name,
const std::string& host_pin,
bool consent_to_data_collection,
const std::string& auth_code,
const std::string& redirect_url,
CompletionCallback on_done) {
DCHECK(main_task_runner_->BelongsToCurrentThread());
DCHECK(on_done_.is_null());
host_name_ = host_name;
host_pin_ = host_pin;
consent_to_data_collection_ = consent_to_data_collection;
on_done_ = on_done;
oauth_client_info_.client_id =
google_apis::GetOAuth2ClientID(google_apis::CLIENT_REMOTING);
oauth_client_info_.client_secret =
google_apis::GetOAuth2ClientSecret(google_apis::CLIENT_REMOTING);
oauth_client_info_.redirect_uri = redirect_url;
// Map the authorization code to refresh and access tokens.
oauth_client_->GetTokensFromAuthCode(oauth_client_info_, auth_code,
kMaxGetTokensRetries, this);
}
void HostStarter::OnGetTokensResponse(
const std::string& refresh_token,
const std::string& access_token,
int expires_in_seconds) {
if (!main_task_runner_->BelongsToCurrentThread()) {
main_task_runner_->PostTask(FROM_HERE, base::Bind(
&HostStarter::OnGetTokensResponse, weak_ptr_,
refresh_token, access_token, expires_in_seconds));
return;
}
refresh_token_ = refresh_token;
access_token_ = access_token;
// Get the email corresponding to the access token.
oauth_client_->GetUserInfo(access_token_, 1, this);
}
void HostStarter::OnRefreshTokenResponse(
const std::string& access_token,
int expires_in_seconds) {
// We never request a refresh token, so this call is not expected.
NOTREACHED();
}
void HostStarter::OnGetUserInfoResponse(const std::string& user_email) {
if (!main_task_runner_->BelongsToCurrentThread()) {
main_task_runner_->PostTask(FROM_HERE, base::Bind(
&HostStarter::OnGetUserInfoResponse, weak_ptr_, user_email));
return;
}
user_email_ = user_email;
// Register the host.
host_id_ = base::GenerateGUID();
key_pair_ = RsaKeyPair::Generate();
service_client_->RegisterHost(
host_id_, host_name_, key_pair_->GetPublicKey(), access_token_, this);
}
void HostStarter::OnHostRegistered() {
if (!main_task_runner_->BelongsToCurrentThread()) {
main_task_runner_->PostTask(FROM_HERE, base::Bind(
&HostStarter::OnHostRegistered, weak_ptr_));
return;
}
// Start the host.
std::string host_secret_hash = remoting::MakeHostPinHash(host_id_, host_pin_);
scoped_ptr<base::DictionaryValue> config(new base::DictionaryValue());
config->SetString("xmpp_login", user_email_);
config->SetString("oauth_refresh_token", refresh_token_);
config->SetString("host_id", host_id_);
config->SetString("host_name", host_name_);
config->SetString("private_key", key_pair_->ToString());
config->SetString("host_secret_hash", host_secret_hash);
daemon_controller_->SetConfigAndStart(
config.Pass(), consent_to_data_collection_,
base::Bind(&HostStarter::OnHostStarted, base::Unretained(this)));
}
void HostStarter::OnHostStarted(DaemonController::AsyncResult result) {
if (!main_task_runner_->BelongsToCurrentThread()) {
main_task_runner_->PostTask(FROM_HERE, base::Bind(
&HostStarter::OnHostStarted, weak_ptr_, result));
return;
}
if (result != DaemonController::RESULT_OK) {
service_client_->UnregisterHost(host_id_, access_token_, this);
return;
}
Result done_result = (result == DaemonController::RESULT_OK) ?
START_COMPLETE : START_ERROR;
CompletionCallback cb = on_done_;
on_done_.Reset();
cb.Run(done_result);
}
void HostStarter::OnOAuthError() {
if (!main_task_runner_->BelongsToCurrentThread()) {
main_task_runner_->PostTask(FROM_HERE, base::Bind(
&HostStarter::OnOAuthError, weak_ptr_));
return;
}
CompletionCallback cb = on_done_;
on_done_.Reset();
cb.Run(OAUTH_ERROR);
}
void HostStarter::OnNetworkError(int response_code) {
if (!main_task_runner_->BelongsToCurrentThread()) {
main_task_runner_->PostTask(FROM_HERE, base::Bind(
&HostStarter::OnNetworkError, weak_ptr_, response_code));
return;
}
CompletionCallback cb = on_done_;
on_done_.Reset();
cb.Run(NETWORK_ERROR);
}
void HostStarter::OnHostUnregistered() {
if (!main_task_runner_->BelongsToCurrentThread()) {
main_task_runner_->PostTask(FROM_HERE, base::Bind(
&HostStarter::OnHostUnregistered, weak_ptr_));
return;
}
CompletionCallback cb = on_done_;
on_done_.Reset();
cb.Run(START_ERROR);
}
} // namespace remoting
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