Moving oauth code from host to base to allow code sharing between host and client.

remoting/host/setup/gaia_oauth_client.cc

-// Copyright 2013 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/gaia_oauth_client.h"
-
-#include "base/callback_helpers.h"
-#include "base/logging.h"
-
-namespace {
-const int kMaxGaiaRetries = 3;
-}  // namespace
-
-namespace remoting {
-
-GaiaOAuthClient::GaiaOAuthClient(
-    scoped_refptr<net::URLRequestContextGetter> url_request_context_getter)
-    : gaia_oauth_client_(url_request_context_getter.get()) {
-}
-
-GaiaOAuthClient::~GaiaOAuthClient() {
-}
-
-void GaiaOAuthClient::GetCredentialsFromAuthCode(
-    const gaia::OAuthClientInfo& oauth_client_info,
-    const std::string& auth_code,
-    bool need_user_email,
-    CompletionCallback on_done) {
-  if (!on_done_.is_null()) {
-    pending_requests_.push(
-        Request(oauth_client_info, auth_code, need_user_email, on_done));
-    return;
-  }
-
-  need_user_email_ = need_user_email;
-  on_done_ = on_done;
-  // Map the authorization code to refresh and access tokens.
-  gaia_oauth_client_.GetTokensFromAuthCode(oauth_client_info, auth_code,
-                                           kMaxGaiaRetries, this);
-}
-
-void GaiaOAuthClient::OnGetTokensResponse(const std::string& refresh_token,
-                                          const std::string& access_token,
-                                          int expires_in_seconds) {
-  refresh_token_ = refresh_token;
-  if (need_user_email_) {
-    // Get the email corresponding to the access token.
-    gaia_oauth_client_.GetUserEmail(access_token, kMaxGaiaRetries, this);
-  } else {
-    SendResponse("", refresh_token_);
-  }
-}
-
-void GaiaOAuthClient::OnRefreshTokenResponse(const std::string& access_token,
-                                             int expires_in_seconds) {
-  // We never request a refresh token, so this call is not expected.
-  NOTREACHED();
-}
-
-void GaiaOAuthClient::SendResponse(const std::string& user_email,
-                                   const std::string& refresh_token) {
-  base::ResetAndReturn(&on_done_).Run(user_email, refresh_token);
-
-  // Process the next request in the queue.
-  if (pending_requests_.size()) {
-    Request request = pending_requests_.front();
-    pending_requests_.pop();
-    // GetCredentialsFromAuthCode is asynchronous, so it's safe to call it here.
-    GetCredentialsFromAuthCode(request.oauth_client_info, request.auth_code,
-                               request.need_user_email, request.on_done);
-  }
-}
-
-void GaiaOAuthClient::OnGetUserEmailResponse(const std::string& user_email) {
-  SendResponse(user_email, refresh_token_);
-}
-
-void GaiaOAuthClient::OnOAuthError() {
-  SendResponse("", "");
-}
-
-void GaiaOAuthClient::OnNetworkError(int response_code) {
-  SendResponse("", "");
-}
-
-GaiaOAuthClient::Request::Request(
-    const gaia::OAuthClientInfo& oauth_client_info,
-    const std::string& auth_code,
-    bool need_user_email,
-    CompletionCallback on_done) {
-  this->oauth_client_info = oauth_client_info;
-  this->auth_code = auth_code;
-  this->need_user_email = need_user_email;
-  this->on_done = on_done;
-}
-
-GaiaOAuthClient::Request::Request(const Request& other) = default;
-
-GaiaOAuthClient::Request::~Request() {
-}
-
-}  // namespace remoting