src/google_apis/gaia/gaia_auth_fetcher.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "google_apis/gaia/gaia_auth_fetcher.h"
   6
   7 #include <string>
   8 #include <utility>
   9 #include <vector>
  10
  11 #include "base/json/json_reader.h"
  12 #include "base/json/json_writer.h"
  13 #include "base/strings/string_split.h"
  14 #include "base/strings/string_util.h"
  15 #include "base/strings/stringprintf.h"
  16 #include "base/values.h"
  17 #include "google_apis/gaia/gaia_auth_consumer.h"
  18 #include "google_apis/gaia/gaia_constants.h"
  19 #include "google_apis/gaia/gaia_urls.h"
  20 #include "google_apis/gaia/google_service_auth_error.h"
  21 #include "net/base/escape.h"
  22 #include "net/base/load_flags.h"
  23 #include "net/http/http_response_headers.h"
  24 #include "net/http/http_status_code.h"
  25 #include "net/url_request/url_fetcher.h"
  26 #include "net/url_request/url_request_context_getter.h"
  27 #include "net/url_request/url_request_status.h"
  28
  29 namespace {
  30 const int kLoadFlagsIgnoreCookies = net::LOAD_DO_NOT_SEND_COOKIES |
  31                                     net::LOAD_DO_NOT_SAVE_COOKIES;
  32
  33 static bool CookiePartsContains(const std::vector<std::string>& parts,
  34                                 const char* part) {
  35   for (std::vector<std::string>::const_iterator it = parts.begin();
  36        it != parts.end(); ++it) {
  37     if (LowerCaseEqualsASCII(*it, part))
  38       return true;
  39   }
  40   return false;
  41 }
  42
  43 bool ExtractOAuth2TokenPairResponse(base::DictionaryValue* dict,
  44                                     std::string* refresh_token,
  45                                     std::string* access_token,
  46                                     int* expires_in_secs) {
  47   DCHECK(refresh_token);
  48   DCHECK(access_token);
  49   DCHECK(expires_in_secs);
  50
  51   if (!dict->GetStringWithoutPathExpansion("refresh_token", refresh_token) ||
  52       !dict->GetStringWithoutPathExpansion("access_token", access_token) ||
  53       !dict->GetIntegerWithoutPathExpansion("expires_in", expires_in_secs)) {
  54     return false;
  55   }
  56
  57   return true;
  58 }
  59
  60 }  // namespace
  61
  62 // TODO(chron): Add sourceless version of this formatter.
  63 // static
  64 const char GaiaAuthFetcher::kClientLoginFormat[] =
  65     "Email=%s&"
  66     "Passwd=%s&"
  67     "PersistentCookie=%s&"
  68     "accountType=%s&"
  69     "source=%s&"
  70     "service=%s";
  71 // static
  72 const char GaiaAuthFetcher::kClientLoginCaptchaFormat[] =
  73     "Email=%s&"
  74     "Passwd=%s&"
  75     "PersistentCookie=%s&"
  76     "accountType=%s&"
  77     "source=%s&"
  78     "service=%s&"
  79     "logintoken=%s&"
  80     "logincaptcha=%s";
  81 // static
  82 const char GaiaAuthFetcher::kIssueAuthTokenFormat[] =
  83     "SID=%s&"
  84     "LSID=%s&"
  85     "service=%s&"
  86     "Session=%s";
  87 // static
  88 const char GaiaAuthFetcher::kClientLoginToOAuth2BodyFormat[] =
  89     "scope=%s&client_id=%s";
  90 // static
  91 const char GaiaAuthFetcher::kClientLoginToOAuth2WithDeviceTypeBodyFormat[] =
  92     "scope=%s&client_id=%s&device_type=chrome";
  93 // static
  94 const char GaiaAuthFetcher::kOAuth2CodeToTokenPairBodyFormat[] =
  95     "scope=%s&"
  96     "grant_type=authorization_code&"
  97     "client_id=%s&"
  98     "client_secret=%s&"
  99     "code=%s";
 100 // static
 101 const char GaiaAuthFetcher::kOAuth2RevokeTokenBodyFormat[] =
 102     "token=%s";
 103 // static
 104 const char GaiaAuthFetcher::kGetUserInfoFormat[] =
 105     "LSID=%s";
 106 // static
 107 const char GaiaAuthFetcher::kMergeSessionFormat[] =
 108     "uberauth=%s&"
 109     "continue=%s&"
 110     "source=%s";
 111 // static
 112 const char GaiaAuthFetcher::kUberAuthTokenURLFormat[] =
 113     "?source=%s&"
 114     "issueuberauth=1";
 115
 116 const char GaiaAuthFetcher::kOAuthLoginFormat[] = "service=%s&source=%s";
 117
 118 // static
 119 const char GaiaAuthFetcher::kAccountDeletedError[] = "AccountDeleted";
 120 // static
 121 const char GaiaAuthFetcher::kAccountDisabledError[] = "AccountDisabled";
 122 // static
 123 const char GaiaAuthFetcher::kBadAuthenticationError[] = "BadAuthentication";
 124 // static
 125 const char GaiaAuthFetcher::kCaptchaError[] = "CaptchaRequired";
 126 // static
 127 const char GaiaAuthFetcher::kServiceUnavailableError[] =
 128     "ServiceUnavailable";
 129 // static
 130 const char GaiaAuthFetcher::kErrorParam[] = "Error";
 131 // static
 132 const char GaiaAuthFetcher::kErrorUrlParam[] = "Url";
 133 // static
 134 const char GaiaAuthFetcher::kCaptchaUrlParam[] = "CaptchaUrl";
 135 // static
 136 const char GaiaAuthFetcher::kCaptchaTokenParam[] = "CaptchaToken";
 137
 138 // static
 139 const char GaiaAuthFetcher::kCookiePersistence[] = "true";
 140 // static
 141 // TODO(johnnyg): When hosted accounts are supported by sync,
 142 // we can always use "HOSTED_OR_GOOGLE"
 143 const char GaiaAuthFetcher::kAccountTypeHostedOrGoogle[] =
 144     "HOSTED_OR_GOOGLE";
 145 const char GaiaAuthFetcher::kAccountTypeGoogle[] =
 146     "GOOGLE";
 147
 148 // static
 149 const char GaiaAuthFetcher::kSecondFactor[] = "Info=InvalidSecondFactor";
 150
 151 // static
 152 const char GaiaAuthFetcher::kAuthHeaderFormat[] =
 153     "Authorization: GoogleLogin auth=%s";
 154 // static
 155 const char GaiaAuthFetcher::kOAuthHeaderFormat[] = "Authorization: OAuth %s";
 156 // static
 157 const char GaiaAuthFetcher::kOAuth2BearerHeaderFormat[] =
 158     "Authorization: Bearer %s";
 159 // static
 160 const char GaiaAuthFetcher::kDeviceIdHeaderFormat[] = "X-Device-ID: %s";
 161 // static
 162 const char GaiaAuthFetcher::kClientLoginToOAuth2CookiePartSecure[] = "secure";
 163 // static
 164 const char GaiaAuthFetcher::kClientLoginToOAuth2CookiePartHttpOnly[] =
 165     "httponly";
 166 // static
 167 const char GaiaAuthFetcher::kClientLoginToOAuth2CookiePartCodePrefix[] =
 168     "oauth_code=";
 169 // static
 170 const int GaiaAuthFetcher::kClientLoginToOAuth2CookiePartCodePrefixLength =
 171     arraysize(GaiaAuthFetcher::kClientLoginToOAuth2CookiePartCodePrefix) - 1;
 172
 173 GaiaAuthFetcher::GaiaAuthFetcher(GaiaAuthConsumer* consumer,
 174                                  const std::string& source,
 175                                  net::URLRequestContextGetter* getter)
 176     : consumer_(consumer),
 177       getter_(getter),
 178       source_(source),
 179       client_login_gurl_(GaiaUrls::GetInstance()->client_login_url()),
 180       issue_auth_token_gurl_(GaiaUrls::GetInstance()->issue_auth_token_url()),
 181       oauth2_token_gurl_(GaiaUrls::GetInstance()->oauth2_token_url()),
 182       oauth2_revoke_gurl_(GaiaUrls::GetInstance()->oauth2_revoke_url()),
 183       get_user_info_gurl_(GaiaUrls::GetInstance()->get_user_info_url()),
 184       merge_session_gurl_(GaiaUrls::GetInstance()->merge_session_url()),
 185       uberauth_token_gurl_(GaiaUrls::GetInstance()->oauth1_login_url().Resolve(
 186           base::StringPrintf(kUberAuthTokenURLFormat, source.c_str()))),
 187       oauth_login_gurl_(GaiaUrls::GetInstance()->oauth1_login_url()),
 188       list_accounts_gurl_(GaiaUrls::GetInstance()->list_accounts_url()),
 189       get_check_connection_info_url_(
 190           GaiaUrls::GetInstance()->get_check_connection_info_url()),
 191       client_login_to_oauth2_gurl_(
 192           GaiaUrls::GetInstance()->client_login_to_oauth2_url()),
 193       fetch_pending_(false) {}
 194
 195 GaiaAuthFetcher::~GaiaAuthFetcher() {}
 196
 197 bool GaiaAuthFetcher::HasPendingFetch() {
 198   return fetch_pending_;
 199 }
 200
 201 void GaiaAuthFetcher::CancelRequest() {
 202   fetcher_.reset();
 203   fetch_pending_ = false;
 204 }
 205
 206 // static
 207 net::URLFetcher* GaiaAuthFetcher::CreateGaiaFetcher(
 208     net::URLRequestContextGetter* getter,
 209     const std::string& body,
 210     const std::string& headers,
 211     const GURL& gaia_gurl,
 212     int load_flags,
 213     net::URLFetcherDelegate* delegate) {
 214   net::URLFetcher* to_return = net::URLFetcher::Create(
 215       0, gaia_gurl,
 216       body == "" ? net::URLFetcher::GET : net::URLFetcher::POST,
 217       delegate);
 218   to_return->SetRequestContext(getter);
 219   to_return->SetUploadData("application/x-www-form-urlencoded", body);
 220
 221   DVLOG(2) << "Gaia fetcher URL: " << gaia_gurl.spec();
 222   DVLOG(2) << "Gaia fetcher headers: " << headers;
 223   DVLOG(2) << "Gaia fetcher body: " << body;
 224
 225   // The Gaia token exchange requests do not require any cookie-based
 226   // identification as part of requests.  We suppress sending any cookies to
 227   // maintain a separation between the user's browsing and Chrome's internal
 228   // services.  Where such mixing is desired (MergeSession or OAuthLogin), it
 229   // will be done explicitly.
 230   to_return->SetLoadFlags(load_flags);
 231
 232   // Fetchers are sometimes cancelled because a network change was detected,
 233   // especially at startup and after sign-in on ChromeOS. Retrying once should
 234   // be enough in those cases; let the fetcher retry up to 3 times just in case.
 235   // http://crbug.com/163710
 236   to_return->SetAutomaticallyRetryOnNetworkChanges(3);
 237
 238   if (!headers.empty())
 239     to_return->SetExtraRequestHeaders(headers);
 240
 241   return to_return;
 242 }
 243
 244 // static
 245 std::string GaiaAuthFetcher::MakeClientLoginBody(
 246     const std::string& username,
 247     const std::string& password,
 248     const std::string& source,
 249     const char* service,
 250     const std::string& login_token,
 251     const std::string& login_captcha,
 252     HostedAccountsSetting allow_hosted_accounts) {
 253   std::string encoded_username = net::EscapeUrlEncodedData(username, true);
 254   std::string encoded_password = net::EscapeUrlEncodedData(password, true);
 255   std::string encoded_login_token = net::EscapeUrlEncodedData(login_token,
 256                                                               true);
 257   std::string encoded_login_captcha = net::EscapeUrlEncodedData(login_captcha,
 258                                                                 true);
 259
 260   const char* account_type = allow_hosted_accounts == HostedAccountsAllowed ?
 261       kAccountTypeHostedOrGoogle :
 262       kAccountTypeGoogle;
 263
 264   if (login_token.empty() || login_captcha.empty()) {
 265     return base::StringPrintf(kClientLoginFormat,
 266                               encoded_username.c_str(),
 267                               encoded_password.c_str(),
 268                               kCookiePersistence,
 269                               account_type,
 270                               source.c_str(),
 271                               service);
 272   }
 273
 274   return base::StringPrintf(kClientLoginCaptchaFormat,
 275                             encoded_username.c_str(),
 276                             encoded_password.c_str(),
 277                             kCookiePersistence,
 278                             account_type,
 279                             source.c_str(),
 280                             service,
 281                             encoded_login_token.c_str(),
 282                             encoded_login_captcha.c_str());
 283 }
 284
 285 // static
 286 std::string GaiaAuthFetcher::MakeIssueAuthTokenBody(
 287     const std::string& sid,
 288     const std::string& lsid,
 289     const char* const service) {
 290   std::string encoded_sid = net::EscapeUrlEncodedData(sid, true);
 291   std::string encoded_lsid = net::EscapeUrlEncodedData(lsid, true);
 292
 293   // All tokens should be session tokens except the gaia auth token.
 294   bool session = true;
 295   if (!strcmp(service, GaiaConstants::kGaiaService))
 296     session = false;
 297
 298   return base::StringPrintf(kIssueAuthTokenFormat,
 299                             encoded_sid.c_str(),
 300                             encoded_lsid.c_str(),
 301                             service,
 302                             session ? "true" : "false");
 303 }
 304
 305 // static
 306 std::string GaiaAuthFetcher::MakeGetAuthCodeBody(bool include_device_type) {
 307   std::string encoded_scope = net::EscapeUrlEncodedData(
 308       GaiaConstants::kOAuth1LoginScope, true);
 309   std::string encoded_client_id = net::EscapeUrlEncodedData(
 310       GaiaUrls::GetInstance()->oauth2_chrome_client_id(), true);
 311   if (include_device_type) {
 312     return base::StringPrintf(kClientLoginToOAuth2WithDeviceTypeBodyFormat,
 313                               encoded_scope.c_str(),
 314                               encoded_client_id.c_str());
 315   } else {
 316     return base::StringPrintf(kClientLoginToOAuth2BodyFormat,
 317                               encoded_scope.c_str(),
 318                               encoded_client_id.c_str());
 319   }
 320 }
 321
 322 // static
 323 std::string GaiaAuthFetcher::MakeGetTokenPairBody(
 324     const std::string& auth_code) {
 325   std::string encoded_scope = net::EscapeUrlEncodedData(
 326       GaiaConstants::kOAuth1LoginScope, true);
 327   std::string encoded_client_id = net::EscapeUrlEncodedData(
 328       GaiaUrls::GetInstance()->oauth2_chrome_client_id(), true);
 329   std::string encoded_client_secret = net::EscapeUrlEncodedData(
 330       GaiaUrls::GetInstance()->oauth2_chrome_client_secret(), true);
 331   std::string encoded_auth_code = net::EscapeUrlEncodedData(auth_code, true);
 332   return base::StringPrintf(kOAuth2CodeToTokenPairBodyFormat,
 333                             encoded_scope.c_str(),
 334                             encoded_client_id.c_str(),
 335                             encoded_client_secret.c_str(),
 336                             encoded_auth_code.c_str());
 337 }
 338
 339 // static
 340 std::string GaiaAuthFetcher::MakeRevokeTokenBody(
 341     const std::string& auth_token) {
 342   return base::StringPrintf(kOAuth2RevokeTokenBodyFormat, auth_token.c_str());
 343 }
 344
 345 // static
 346 std::string GaiaAuthFetcher::MakeGetUserInfoBody(const std::string& lsid) {
 347   std::string encoded_lsid = net::EscapeUrlEncodedData(lsid, true);
 348   return base::StringPrintf(kGetUserInfoFormat, encoded_lsid.c_str());
 349 }
 350
 351 // static
 352 std::string GaiaAuthFetcher::MakeMergeSessionBody(
 353     const std::string& auth_token,
 354     const std::string& external_cc_result,
 355     const std::string& continue_url,
 356     const std::string& source) {
 357   std::string encoded_auth_token = net::EscapeUrlEncodedData(auth_token, true);
 358   std::string encoded_continue_url = net::EscapeUrlEncodedData(continue_url,
 359                                                                true);
 360   std::string encoded_source = net::EscapeUrlEncodedData(source, true);
 361   std::string result = base::StringPrintf(kMergeSessionFormat,
 362                                           encoded_auth_token.c_str(),
 363                                           encoded_continue_url.c_str(),
 364                                           encoded_source.c_str());
 365   if (!external_cc_result.empty()) {
 366     base::StringAppendF(&result, "&externalCcResult=%s",
 367                         net::EscapeUrlEncodedData(
 368                             external_cc_result, true).c_str());
 369   }
 370
 371   return result;
 372 }
 373
 374 // static
 375 std::string GaiaAuthFetcher::MakeGetAuthCodeHeader(
 376     const std::string& auth_token) {
 377   return base::StringPrintf(kAuthHeaderFormat, auth_token.c_str());
 378 }
 379
 380 // Helper method that extracts tokens from a successful reply.
 381 // static
 382 void GaiaAuthFetcher::ParseClientLoginResponse(const std::string& data,
 383                                                std::string* sid,
 384                                                std::string* lsid,
 385                                                std::string* token) {
 386   using std::vector;
 387   using std::pair;
 388   using std::string;
 389   sid->clear();
 390   lsid->clear();
 391   token->clear();
 392   vector<pair<string, string> > tokens;
 393   base::SplitStringIntoKeyValuePairs(data, '=', '\n', &tokens);
 394   for (vector<pair<string, string> >::iterator i = tokens.begin();
 395       i != tokens.end(); ++i) {
 396     if (i->first == "SID") {
 397       sid->assign(i->second);
 398     } else if (i->first == "LSID") {
 399       lsid->assign(i->second);
 400     } else if (i->first == "Auth") {
 401       token->assign(i->second);
 402     }
 403   }
 404   // If this was a request for uberauth token, then that's all we've got in
 405   // data.
 406   if (sid->empty() && lsid->empty() && token->empty())
 407     token->assign(data);
 408 }
 409
 410 // static
 411 std::string GaiaAuthFetcher::MakeOAuthLoginBody(const std::string& service,
 412                                                 const std::string& source) {
 413   std::string encoded_service = net::EscapeUrlEncodedData(service, true);
 414   std::string encoded_source = net::EscapeUrlEncodedData(source, true);
 415   return base::StringPrintf(kOAuthLoginFormat,
 416                             encoded_service.c_str(),
 417                             encoded_source.c_str());
 418 }
 419
 420 // static
 421 void GaiaAuthFetcher::ParseClientLoginFailure(const std::string& data,
 422                                               std::string* error,
 423                                               std::string* error_url,
 424                                               std::string* captcha_url,
 425                                               std::string* captcha_token) {
 426   using std::vector;
 427   using std::pair;
 428   using std::string;
 429
 430   vector<pair<string, string> > tokens;
 431   base::SplitStringIntoKeyValuePairs(data, '=', '\n', &tokens);
 432   for (vector<pair<string, string> >::iterator i = tokens.begin();
 433        i != tokens.end(); ++i) {
 434     if (i->first == kErrorParam) {
 435       error->assign(i->second);
 436     } else if (i->first == kErrorUrlParam) {
 437       error_url->assign(i->second);
 438     } else if (i->first == kCaptchaUrlParam) {
 439       captcha_url->assign(i->second);
 440     } else if (i->first == kCaptchaTokenParam) {
 441       captcha_token->assign(i->second);
 442     }
 443   }
 444 }
 445
 446 // static
 447 bool GaiaAuthFetcher::ParseClientLoginToOAuth2Response(
 448     const net::ResponseCookies& cookies,
 449     std::string* auth_code) {
 450   DCHECK(auth_code);
 451   net::ResponseCookies::const_iterator iter;
 452   for (iter = cookies.begin(); iter != cookies.end(); ++iter) {
 453     if (ParseClientLoginToOAuth2Cookie(*iter, auth_code))
 454       return true;
 455   }
 456   return false;
 457 }
 458
 459 // static
 460 bool GaiaAuthFetcher::ParseClientLoginToOAuth2Cookie(const std::string& cookie,
 461                                                      std::string* auth_code) {
 462   std::vector<std::string> parts;
 463   base::SplitString(cookie, ';', &parts);
 464   // Per documentation, the cookie should have Secure and HttpOnly.
 465   if (!CookiePartsContains(parts, kClientLoginToOAuth2CookiePartSecure) ||
 466       !CookiePartsContains(parts, kClientLoginToOAuth2CookiePartHttpOnly)) {
 467     return false;
 468   }
 469
 470   std::vector<std::string>::const_iterator iter;
 471   for (iter = parts.begin(); iter != parts.end(); ++iter) {
 472     const std::string& part = *iter;
 473     if (StartsWithASCII(
 474         part, kClientLoginToOAuth2CookiePartCodePrefix, false)) {
 475       auth_code->assign(part.substr(
 476           kClientLoginToOAuth2CookiePartCodePrefixLength));
 477       return true;
 478     }
 479   }
 480   return false;
 481 }
 482
 483 void GaiaAuthFetcher::StartClientLogin(
 484     const std::string& username,
 485     const std::string& password,
 486     const char* const service,
 487     const std::string& login_token,
 488     const std::string& login_captcha,
 489     HostedAccountsSetting allow_hosted_accounts) {
 490
 491   DCHECK(!fetch_pending_) << "Tried to fetch two things at once!";
 492
 493   // This class is thread agnostic, so be sure to call this only on the
 494   // same thread each time.
 495   DVLOG(1) << "Starting new ClientLogin fetch for:" << username;
 496
 497   // Must outlive fetcher_.
 498   request_body_ = MakeClientLoginBody(username,
 499                                       password,
 500                                       source_,
 501                                       service,
 502                                       login_token,
 503                                       login_captcha,
 504                                       allow_hosted_accounts);
 505   fetcher_.reset(CreateGaiaFetcher(getter_,
 506                                    request_body_,
 507                                    std::string(),
 508                                    client_login_gurl_,
 509                                    kLoadFlagsIgnoreCookies,
 510                                    this));
 511   fetch_pending_ = true;
 512   fetcher_->Start();
 513 }
 514
 515 void GaiaAuthFetcher::StartIssueAuthToken(const std::string& sid,
 516                                           const std::string& lsid,
 517                                           const char* const service) {
 518   DCHECK(!fetch_pending_) << "Tried to fetch two things at once!";
 519
 520   DVLOG(1) << "Starting IssueAuthToken for: " << service;
 521   requested_service_ = service;
 522   request_body_ = MakeIssueAuthTokenBody(sid, lsid, service);
 523   fetcher_.reset(CreateGaiaFetcher(getter_,
 524                                    request_body_,
 525                                    std::string(),
 526                                    issue_auth_token_gurl_,
 527                                    kLoadFlagsIgnoreCookies,
 528                                    this));
 529   fetch_pending_ = true;
 530   fetcher_->Start();
 531 }
 532
 533 void GaiaAuthFetcher::StartLsoForOAuthLoginTokenExchange(
 534     const std::string& auth_token) {
 535   DCHECK(!fetch_pending_) << "Tried to fetch two things at once!";
 536
 537   DVLOG(1) << "Starting OAuth login token exchange with auth_token";
 538   request_body_ = MakeGetAuthCodeBody(false);
 539   client_login_to_oauth2_gurl_ =
 540       GaiaUrls::GetInstance()->client_login_to_oauth2_url();
 541
 542   fetcher_.reset(CreateGaiaFetcher(getter_,
 543                                    request_body_,
 544                                    MakeGetAuthCodeHeader(auth_token),
 545                                    client_login_to_oauth2_gurl_,
 546                                    kLoadFlagsIgnoreCookies,
 547                                    this));
 548   fetch_pending_ = true;
 549   fetcher_->Start();
 550 }
 551
 552 void GaiaAuthFetcher::StartRevokeOAuth2Token(const std::string& auth_token) {
 553   DCHECK(!fetch_pending_) << "Tried to fetch two things at once!";
 554
 555   DVLOG(1) << "Starting OAuth2 token revocation";
 556   request_body_ = MakeRevokeTokenBody(auth_token);
 557   fetcher_.reset(CreateGaiaFetcher(getter_,
 558                                    request_body_,
 559                                    std::string(),
 560                                    oauth2_revoke_gurl_,
 561                                    kLoadFlagsIgnoreCookies,
 562                                    this));
 563   fetch_pending_ = true;
 564   fetcher_->Start();
 565 }
 566
 567 void GaiaAuthFetcher::StartCookieForOAuthLoginTokenExchange(
 568     const std::string& session_index) {
 569   StartCookieForOAuthLoginTokenExchangeWithDeviceId(session_index,
 570                                                     std::string());
 571 }
 572
 573 void GaiaAuthFetcher::StartCookieForOAuthLoginTokenExchangeWithDeviceId(
 574     const std::string& session_index,
 575     const std::string& device_id) {
 576   DCHECK(!fetch_pending_) << "Tried to fetch two things at once!";
 577
 578   DVLOG(1) << "Starting OAuth login token fetch with cookie jar";
 579   request_body_ = MakeGetAuthCodeBody(!device_id.empty());
 580
 581   client_login_to_oauth2_gurl_ =
 582       GaiaUrls::GetInstance()->client_login_to_oauth2_url();
 583   if (!session_index.empty()) {
 584     client_login_to_oauth2_gurl_ =
 585         client_login_to_oauth2_gurl_.Resolve("?authuser=" + session_index);
 586   }
 587
 588   std::string device_id_header;
 589   if (!device_id.empty()) {
 590     device_id_header =
 591         base::StringPrintf(kDeviceIdHeaderFormat, device_id.c_str());
 592   }
 593
 594   fetcher_.reset(CreateGaiaFetcher(getter_,
 595                                    request_body_,
 596                                    device_id_header,
 597                                    client_login_to_oauth2_gurl_,
 598                                    net::LOAD_NORMAL,
 599                                    this));
 600   fetch_pending_ = true;
 601   fetcher_->Start();
 602 }
 603
 604 void GaiaAuthFetcher::StartAuthCodeForOAuth2TokenExchange(
 605     const std::string& auth_code) {
 606   DCHECK(!fetch_pending_) << "Tried to fetch two things at once!";
 607
 608   DVLOG(1) << "Starting OAuth token pair fetch";
 609   request_body_ = MakeGetTokenPairBody(auth_code);
 610   fetcher_.reset(CreateGaiaFetcher(getter_,
 611                                    request_body_,
 612                                    std::string(),
 613                                    oauth2_token_gurl_,
 614                                    kLoadFlagsIgnoreCookies,
 615                                    this));
 616   fetch_pending_ = true;
 617   fetcher_->Start();
 618 }
 619
 620 void GaiaAuthFetcher::StartGetUserInfo(const std::string& lsid) {
 621   DCHECK(!fetch_pending_) << "Tried to fetch two things at once!";
 622
 623   DVLOG(1) << "Starting GetUserInfo for lsid=" << lsid;
 624   request_body_ = MakeGetUserInfoBody(lsid);
 625   fetcher_.reset(CreateGaiaFetcher(getter_,
 626                                    request_body_,
 627                                    std::string(),
 628                                    get_user_info_gurl_,
 629                                    kLoadFlagsIgnoreCookies,
 630                                    this));
 631   fetch_pending_ = true;
 632   fetcher_->Start();
 633 }
 634
 635 void GaiaAuthFetcher::StartMergeSession(const std::string& uber_token,
 636                                         const std::string& external_cc_result) {
 637   DCHECK(!fetch_pending_) << "Tried to fetch two things at once!";
 638
 639   DVLOG(1) << "Starting MergeSession with uber_token=" << uber_token;
 640
 641   // The continue URL is a required parameter of the MergeSession API, but in
 642   // this case we don't actually need or want to navigate to it.  Setting it to
 643   // an arbitrary Google URL.
 644   //
 645   // In order for the new session to be merged correctly, the server needs to
 646   // know what sessions already exist in the browser.  The fetcher needs to be
 647   // created such that it sends the cookies with the request, which is
 648   // different from all other requests the fetcher can make.
 649   std::string continue_url("http://www.google.com");
 650   request_body_ = MakeMergeSessionBody(uber_token, external_cc_result,
 651       continue_url, source_);
 652   fetcher_.reset(CreateGaiaFetcher(getter_,
 653                                    request_body_,
 654                                    std::string(),
 655                                    merge_session_gurl_,
 656                                    net::LOAD_NORMAL,
 657                                    this));
 658   fetch_pending_ = true;
 659   fetcher_->Start();
 660 }
 661
 662 void GaiaAuthFetcher::StartTokenFetchForUberAuthExchange(
 663     const std::string& access_token) {
 664   DCHECK(!fetch_pending_) << "Tried to fetch two things at once!";
 665
 666   DVLOG(1) << "Starting StartTokenFetchForUberAuthExchange with access_token="
 667            << access_token;
 668   std::string authentication_header =
 669       base::StringPrintf(kOAuthHeaderFormat, access_token.c_str());
 670   fetcher_.reset(CreateGaiaFetcher(getter_,
 671                                    std::string(),
 672                                    authentication_header,
 673                                    uberauth_token_gurl_,
 674                                    net::LOAD_NORMAL,
 675                                    this));
 676   fetch_pending_ = true;
 677   fetcher_->Start();
 678 }
 679
 680 void GaiaAuthFetcher::StartOAuthLogin(const std::string& access_token,
 681                                       const std::string& service) {
 682   DCHECK(!fetch_pending_) << "Tried to fetch two things at once!";
 683
 684   request_body_ = MakeOAuthLoginBody(service, source_);
 685   std::string authentication_header =
 686       base::StringPrintf(kOAuth2BearerHeaderFormat, access_token.c_str());
 687   fetcher_.reset(CreateGaiaFetcher(getter_,
 688                                    request_body_,
 689                                    authentication_header,
 690                                    oauth_login_gurl_,
 691                                    net::LOAD_NORMAL,
 692                                    this));
 693   fetch_pending_ = true;
 694   fetcher_->Start();
 695 }
 696
 697 void GaiaAuthFetcher::StartListAccounts() {
 698   DCHECK(!fetch_pending_) << "Tried to fetch two things at once!";
 699
 700   fetcher_.reset(CreateGaiaFetcher(getter_,
 701                                    " ",  // To force an HTTP POST.
 702                                    "Origin: https://www.google.com",
 703                                    list_accounts_gurl_,
 704                                    net::LOAD_NORMAL,
 705                                    this));
 706   fetch_pending_ = true;
 707   fetcher_->Start();
 708 }
 709
 710 void GaiaAuthFetcher::StartGetCheckConnectionInfo() {
 711   DCHECK(!fetch_pending_) << "Tried to fetch two things at once!";
 712
 713   fetcher_.reset(CreateGaiaFetcher(getter_,
 714                                    std::string(),
 715                                    std::string(),
 716                                    get_check_connection_info_url_,
 717                                    kLoadFlagsIgnoreCookies,
 718                                    this));
 719   fetch_pending_ = true;
 720   fetcher_->Start();
 721 }
 722
 723 // static
 724 GoogleServiceAuthError GaiaAuthFetcher::GenerateAuthError(
 725     const std::string& data,
 726     const net::URLRequestStatus& status) {
 727   if (!status.is_success()) {
 728     if (status.status() == net::URLRequestStatus::CANCELED) {
 729       return GoogleServiceAuthError(GoogleServiceAuthError::REQUEST_CANCELED);
 730     }
 731     DLOG(WARNING) << "Could not reach Google Accounts servers: errno "
 732                   << status.error();
 733     return GoogleServiceAuthError::FromConnectionError(status.error());
 734   }
 735
 736   if (IsSecondFactorSuccess(data))
 737     return GoogleServiceAuthError(GoogleServiceAuthError::TWO_FACTOR);
 738
 739   std::string error;
 740   std::string url;
 741   std::string captcha_url;
 742   std::string captcha_token;
 743   ParseClientLoginFailure(data, &error, &url, &captcha_url, &captcha_token);
 744   DLOG(WARNING) << "ClientLogin failed with " << error;
 745
 746   if (error == kCaptchaError) {
 747     return GoogleServiceAuthError::FromClientLoginCaptchaChallenge(
 748         captcha_token,
 749         GURL(GaiaUrls::GetInstance()->captcha_base_url().Resolve(captcha_url)),
 750         GURL(url));
 751   }
 752   if (error == kAccountDeletedError)
 753     return GoogleServiceAuthError(GoogleServiceAuthError::ACCOUNT_DELETED);
 754   if (error == kAccountDisabledError)
 755     return GoogleServiceAuthError(GoogleServiceAuthError::ACCOUNT_DISABLED);
 756   if (error == kBadAuthenticationError) {
 757     return GoogleServiceAuthError(
 758         GoogleServiceAuthError::INVALID_GAIA_CREDENTIALS);
 759   }
 760   if (error == kServiceUnavailableError) {
 761     return GoogleServiceAuthError(
 762         GoogleServiceAuthError::SERVICE_UNAVAILABLE);
 763   }
 764
 765   DLOG(WARNING) << "Incomprehensible response from Google Accounts servers.";
 766   return GoogleServiceAuthError(GoogleServiceAuthError::SERVICE_UNAVAILABLE);
 767 }
 768
 769 void GaiaAuthFetcher::OnClientLoginFetched(const std::string& data,
 770                                            const net::URLRequestStatus& status,
 771                                            int response_code) {
 772   if (status.is_success() && response_code == net::HTTP_OK) {
 773     DVLOG(1) << "ClientLogin successful!";
 774     std::string sid;
 775     std::string lsid;
 776     std::string token;
 777     ParseClientLoginResponse(data, &sid, &lsid, &token);
 778     consumer_->OnClientLoginSuccess(
 779         GaiaAuthConsumer::ClientLoginResult(sid, lsid, token, data));
 780   } else {
 781     consumer_->OnClientLoginFailure(GenerateAuthError(data, status));
 782   }
 783 }
 784
 785 void GaiaAuthFetcher::OnIssueAuthTokenFetched(
 786     const std::string& data,
 787     const net::URLRequestStatus& status,
 788     int response_code) {
 789   if (status.is_success() && response_code == net::HTTP_OK) {
 790     // Only the bare token is returned in the body of this Gaia call
 791     // without any padding.
 792     consumer_->OnIssueAuthTokenSuccess(requested_service_, data);
 793   } else {
 794     consumer_->OnIssueAuthTokenFailure(requested_service_,
 795         GenerateAuthError(data, status));
 796   }
 797 }
 798
 799 void GaiaAuthFetcher::OnClientLoginToOAuth2Fetched(
 800     const std::string& data,
 801     const net::ResponseCookies& cookies,
 802     const net::URLRequestStatus& status,
 803     int response_code) {
 804   if (status.is_success() && response_code == net::HTTP_OK) {
 805     std::string auth_code;
 806     if (ParseClientLoginToOAuth2Response(cookies, &auth_code)) {
 807       StartAuthCodeForOAuth2TokenExchange(auth_code);
 808     } else {
 809       GoogleServiceAuthError auth_error(
 810           GoogleServiceAuthError::FromUnexpectedServiceResponse(
 811               "ClientLogin response cookies didn't contain an auth code"));
 812       consumer_->OnClientOAuthFailure(auth_error);
 813     }
 814   } else {
 815     GoogleServiceAuthError auth_error(GenerateAuthError(data, status));
 816     consumer_->OnClientOAuthFailure(auth_error);
 817   }
 818 }
 819
 820 void GaiaAuthFetcher::OnOAuth2TokenPairFetched(
 821     const std::string& data,
 822     const net::URLRequestStatus& status,
 823     int response_code) {
 824   std::string refresh_token;
 825   std::string access_token;
 826   int expires_in_secs = 0;
 827
 828   bool success = false;
 829   if (status.is_success() && response_code == net::HTTP_OK) {
 830     scoped_ptr<base::Value> value(base::JSONReader::Read(data));
 831     if (value.get() && value->GetType() == base::Value::TYPE_DICTIONARY) {
 832       base::DictionaryValue* dict =
 833           static_cast<base::DictionaryValue*>(value.get());
 834       success = ExtractOAuth2TokenPairResponse(dict, &refresh_token,
 835                                                &access_token, &expires_in_secs);
 836     }
 837   }
 838
 839   if (success) {
 840     consumer_->OnClientOAuthSuccess(
 841         GaiaAuthConsumer::ClientOAuthResult(refresh_token, access_token,
 842                                             expires_in_secs));
 843   } else {
 844     consumer_->OnClientOAuthFailure(GenerateAuthError(data, status));
 845   }
 846 }
 847
 848 void GaiaAuthFetcher::OnOAuth2RevokeTokenFetched(
 849     const std::string& data,
 850     const net::URLRequestStatus& status,
 851     int response_code) {
 852   consumer_->OnOAuth2RevokeTokenCompleted();
 853 }
 854
 855 void GaiaAuthFetcher::OnListAccountsFetched(const std::string& data,
 856                                             const net::URLRequestStatus& status,
 857                                             int response_code) {
 858   if (status.is_success() && response_code == net::HTTP_OK) {
 859     consumer_->OnListAccountsSuccess(data);
 860   } else {
 861     consumer_->OnListAccountsFailure(GenerateAuthError(data, status));
 862   }
 863 }
 864
 865 void GaiaAuthFetcher::OnGetUserInfoFetched(
 866     const std::string& data,
 867     const net::URLRequestStatus& status,
 868     int response_code) {
 869   if (status.is_success() && response_code == net::HTTP_OK) {
 870     base::StringPairs tokens;
 871     UserInfoMap matches;
 872     base::SplitStringIntoKeyValuePairs(data, '=', '\n', &tokens);
 873     base::StringPairs::iterator i;
 874     for (i = tokens.begin(); i != tokens.end(); ++i) {
 875       matches[i->first] = i->second;
 876     }
 877     consumer_->OnGetUserInfoSuccess(matches);
 878   } else {
 879     consumer_->OnGetUserInfoFailure(GenerateAuthError(data, status));
 880   }
 881 }
 882
 883 void GaiaAuthFetcher::OnMergeSessionFetched(const std::string& data,
 884                                             const net::URLRequestStatus& status,
 885                                             int response_code) {
 886   if (status.is_success() && response_code == net::HTTP_OK) {
 887     consumer_->OnMergeSessionSuccess(data);
 888   } else {
 889     consumer_->OnMergeSessionFailure(GenerateAuthError(data, status));
 890   }
 891 }
 892
 893 void GaiaAuthFetcher::OnUberAuthTokenFetch(const std::string& data,
 894                                            const net::URLRequestStatus& status,
 895                                            int response_code) {
 896   if (status.is_success() && response_code == net::HTTP_OK) {
 897     consumer_->OnUberAuthTokenSuccess(data);
 898   } else {
 899     consumer_->OnUberAuthTokenFailure(GenerateAuthError(data, status));
 900   }
 901 }
 902
 903 void GaiaAuthFetcher::OnOAuthLoginFetched(const std::string& data,
 904                                           const net::URLRequestStatus& status,
 905                                           int response_code) {
 906   if (status.is_success() && response_code == net::HTTP_OK) {
 907     DVLOG(1) << "ClientLogin successful!";
 908     std::string sid;
 909     std::string lsid;
 910     std::string token;
 911     ParseClientLoginResponse(data, &sid, &lsid, &token);
 912     consumer_->OnClientLoginSuccess(
 913         GaiaAuthConsumer::ClientLoginResult(sid, lsid, token, data));
 914   } else {
 915     consumer_->OnClientLoginFailure(GenerateAuthError(data, status));
 916   }
 917 }
 918
 919 void GaiaAuthFetcher::OnGetCheckConnectionInfoFetched(
 920     const std::string& data,
 921     const net::URLRequestStatus& status,
 922     int response_code) {
 923   if (status.is_success() && response_code == net::HTTP_OK) {
 924     consumer_->OnGetCheckConnectionInfoSuccess(data);
 925   } else {
 926     consumer_->OnGetCheckConnectionInfoError(GenerateAuthError(data, status));
 927   }
 928 }
 929
 930 void GaiaAuthFetcher::OnURLFetchComplete(const net::URLFetcher* source) {
 931   fetch_pending_ = false;
 932   // Some of the GAIA requests perform redirects, which results in the final
 933   // URL of the fetcher not being the original URL requested.  Therefore use
 934   // the original URL when determining which OnXXX function to call.
 935   const GURL& url = source->GetOriginalURL();
 936   const net::URLRequestStatus& status = source->GetStatus();
 937   int response_code = source->GetResponseCode();
 938   std::string data;
 939   source->GetResponseAsString(&data);
 940 #ifndef NDEBUG
 941   std::string headers;
 942   if (source->GetResponseHeaders())
 943     source->GetResponseHeaders()->GetNormalizedHeaders(&headers);
 944   DVLOG(2) << "Response " << url.spec() << ", code = " << response_code << "\n"
 945            << headers << "\n";
 946   DVLOG(2) << "data: " << data << "\n";
 947 #endif
 948   // Retrieve the response headers from the request.  Must only be called after
 949   // the OnURLFetchComplete callback has run.
 950   if (url == client_login_gurl_) {
 951     OnClientLoginFetched(data, status, response_code);
 952   } else if (url == issue_auth_token_gurl_) {
 953     OnIssueAuthTokenFetched(data, status, response_code);
 954   } else if (url == client_login_to_oauth2_gurl_) {
 955     OnClientLoginToOAuth2Fetched(
 956         data, source->GetCookies(), status, response_code);
 957   } else if (url == oauth2_token_gurl_) {
 958     OnOAuth2TokenPairFetched(data, status, response_code);
 959   } else if (url == get_user_info_gurl_) {
 960     OnGetUserInfoFetched(data, status, response_code);
 961   } else if (url == merge_session_gurl_) {
 962     OnMergeSessionFetched(data, status, response_code);
 963   } else if (url == uberauth_token_gurl_) {
 964     OnUberAuthTokenFetch(data, status, response_code);
 965   } else if (url == oauth_login_gurl_) {
 966     OnOAuthLoginFetched(data, status, response_code);
 967   } else if (url == oauth2_revoke_gurl_) {
 968     OnOAuth2RevokeTokenFetched(data, status, response_code);
 969   } else if (url == list_accounts_gurl_) {
 970     OnListAccountsFetched(data, status, response_code);
 971   } else if (url == get_check_connection_info_url_) {
 972     OnGetCheckConnectionInfoFetched(data, status, response_code);
 973   } else {
 974     NOTREACHED();
 975   }
 976 }
 977
 978 // static
 979 bool GaiaAuthFetcher::IsSecondFactorSuccess(
 980     const std::string& alleged_error) {
 981   return alleged_error.find(kSecondFactor) !=
 982       std::string::npos;
 983 }