src/chrome/browser/profiles/profile_downloader.cc

   1 // Copyright (c) 2013 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 "chrome/browser/profiles/profile_downloader.h"
   6
   7 #include <string>
   8 #include <vector>
   9
  10 #include "base/json/json_reader.h"
  11 #include "base/logging.h"
  12 #include "base/message_loop/message_loop.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 "chrome/browser/profiles/profile.h"
  18 #include "chrome/browser/profiles/profile_downloader_delegate.h"
  19 #include "chrome/browser/profiles/profile_manager.h"
  20 #include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
  21 #include "chrome/browser/signin/signin_manager_factory.h"
  22 #include "components/signin/core/browser/profile_oauth2_token_service.h"
  23 #include "components/signin/core/browser/signin_manager.h"
  24 #include "content/public/browser/browser_thread.h"
  25 #include "google_apis/gaia/gaia_constants.h"
  26 #include "google_apis/gaia/gaia_urls.h"
  27 #include "net/base/load_flags.h"
  28 #include "net/url_request/url_fetcher.h"
  29 #include "net/url_request/url_request_status.h"
  30 #include "skia/ext/image_operations.h"
  31 #include "url/gurl.h"
  32
  33 using content::BrowserThread;
  34
  35 namespace {
  36
  37 // Template for optional authorization header when using an OAuth access token.
  38 const char kAuthorizationHeader[] =
  39     "Authorization: Bearer %s";
  40
  41 // Path in JSON dictionary to user's photo thumbnail URL.
  42 const char kPhotoThumbnailURLPath[] = "image.url";
  43
  44 // From the user info API, this field corresponds to the full name of the user.
  45 const char kFullNamePath[] = "displayName";
  46
  47 const char kGivenNamePath[] = "name.givenName";
  48
  49 // Path in JSON dictionary to user's preferred locale.
  50 const char kLocalePath[] = "language";
  51
  52 // Path format for specifying thumbnail's size.
  53 const char kThumbnailSizeFormat[] = "s%d-c";
  54 // Default thumbnail size.
  55 const int kDefaultThumbnailSize = 64;
  56
  57 // Separator of URL path components.
  58 const char kURLPathSeparator = '/';
  59
  60 // Photo ID of the Picasa Web Albums profile picture (base64 of 0).
  61 const char kPicasaPhotoId[] = "AAAAAAAAAAA";
  62
  63 // Photo version of the default PWA profile picture (base64 of 1).
  64 const char kDefaultPicasaPhotoVersion[] = "AAAAAAAAAAE";
  65
  66 // The minimum number of path components in profile picture URL.
  67 const size_t kProfileImageURLPathComponentsCount = 6;
  68
  69 // Index of path component with photo ID.
  70 const int kPhotoIdPathComponentIndex = 2;
  71
  72 // Index of path component with photo version.
  73 const int kPhotoVersionPathComponentIndex = 3;
  74
  75 // Given an image URL this function builds a new URL set to |size|.
  76 // For example, if |size| was set to 256 and |old_url| was either:
  77 //   https://example.com/--Abc/AAAAAAAAAAI/AAAAAAAAACQ/Efg/photo.jpg
  78 //   or
  79 //   https://example.com/--Abc/AAAAAAAAAAI/AAAAAAAAACQ/Efg/s64-c/photo.jpg
  80 // then return value in |new_url| would be:
  81 //   https://example.com/--Abc/AAAAAAAAAAI/AAAAAAAAACQ/Efg/s256-c/photo.jpg
  82 bool GetImageURLWithSize(const GURL& old_url, int size, GURL* new_url) {
  83   DCHECK(new_url);
  84   std::vector<std::string> components;
  85   base::SplitString(old_url.path(), kURLPathSeparator, &components);
  86   if (components.size() == 0)
  87     return false;
  88
  89   const std::string& old_spec = old_url.spec();
  90   std::string default_size_component(
  91       base::StringPrintf(kThumbnailSizeFormat, kDefaultThumbnailSize));
  92   std::string new_size_component(
  93       base::StringPrintf(kThumbnailSizeFormat, size));
  94
  95   size_t pos = old_spec.find(default_size_component);
  96   size_t end = std::string::npos;
  97   if (pos != std::string::npos) {
  98     // The default size is already specified in the URL so it needs to be
  99     // replaced with the new size.
 100     end = pos + default_size_component.size();
 101   } else {
 102     // The default size is not in the URL so try to insert it before the last
 103     // component.
 104     const std::string& file_name = old_url.ExtractFileName();
 105     if (!file_name.empty()) {
 106       pos = old_spec.find(file_name);
 107       end = pos - 1;
 108     }
 109   }
 110
 111   if (pos != std::string::npos) {
 112     std::string new_spec = old_spec.substr(0, pos) + new_size_component +
 113                            old_spec.substr(end);
 114     *new_url = GURL(new_spec);
 115     return new_url->is_valid();
 116   }
 117
 118   // We can't set the image size, just use the default size.
 119   *new_url = old_url;
 120   return true;
 121 }
 122
 123 }  // namespace
 124
 125 // Parses the entry response and gets the name and profile image URL.
 126 // |data| should be the JSON formatted data return by the response.
 127 // Returns false to indicate a parsing error.
 128 bool ProfileDownloader::ParseProfileJSON(base::DictionaryValue* root_dictionary,
 129                                          base::string16* full_name,
 130                                          base::string16* given_name,
 131                                          std::string* url,
 132                                          int image_size,
 133                                          std::string* profile_locale) {
 134   DCHECK(full_name);
 135   DCHECK(given_name);
 136   DCHECK(url);
 137   DCHECK(profile_locale);
 138
 139   *full_name = base::string16();
 140   *given_name = base::string16();
 141   *url = std::string();
 142   *profile_locale = std::string();
 143
 144   root_dictionary->GetString(kFullNamePath, full_name);
 145   root_dictionary->GetString(kGivenNamePath, given_name);
 146   root_dictionary->GetString(kLocalePath, profile_locale);
 147
 148   std::string url_string;
 149   if (root_dictionary->GetString(kPhotoThumbnailURLPath, &url_string)) {
 150     GURL new_url;
 151     if (!GetImageURLWithSize(GURL(url_string), image_size, &new_url)) {
 152       LOG(ERROR) << "GetImageURLWithSize failed for url: " << url_string;
 153       return false;
 154     }
 155     *url = new_url.spec();
 156   }
 157
 158   // The profile data is considered valid as long as it has a name or a picture.
 159   return !full_name->empty() || !url->empty();
 160 }
 161
 162 // static
 163 bool ProfileDownloader::IsDefaultProfileImageURL(const std::string& url) {
 164   if (url.empty())
 165     return true;
 166
 167   GURL image_url_object(url);
 168   DCHECK(image_url_object.is_valid());
 169   VLOG(1) << "URL to check for default image: " << image_url_object.spec();
 170   std::vector<std::string> path_components;
 171   base::SplitString(image_url_object.path(),
 172                     kURLPathSeparator,
 173                     &path_components);
 174
 175   if (path_components.size() < kProfileImageURLPathComponentsCount)
 176     return false;
 177
 178   const std::string& photo_id = path_components[kPhotoIdPathComponentIndex];
 179   const std::string& photo_version =
 180       path_components[kPhotoVersionPathComponentIndex];
 181
 182   // Check that the ID and version match the default Picasa profile photo.
 183   return photo_id == kPicasaPhotoId &&
 184          photo_version == kDefaultPicasaPhotoVersion;
 185 }
 186
 187 ProfileDownloader::ProfileDownloader(ProfileDownloaderDelegate* delegate)
 188     : OAuth2TokenService::Consumer("profile_downloader"),
 189       delegate_(delegate),
 190       picture_status_(PICTURE_FAILED) {
 191   DCHECK(delegate_);
 192 }
 193
 194 void ProfileDownloader::Start() {
 195   StartForAccount(std::string());
 196 }
 197
 198 void ProfileDownloader::StartForAccount(const std::string& account_id) {
 199   VLOG(1) << "Starting profile downloader...";
 200   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 201
 202   ProfileOAuth2TokenService* service =
 203       ProfileOAuth2TokenServiceFactory::GetForProfile(
 204           delegate_->GetBrowserProfile());
 205   if (!service) {
 206     // This can happen in some test paths.
 207     LOG(WARNING) << "User has no token service";
 208     delegate_->OnProfileDownloadFailure(
 209         this, ProfileDownloaderDelegate::TOKEN_ERROR);
 210     return;
 211   }
 212
 213   SigninManagerBase* signin_manager =
 214       SigninManagerFactory::GetForProfile(delegate_->GetBrowserProfile());
 215   account_id_ =
 216       account_id.empty() ?
 217           signin_manager->GetAuthenticatedAccountId() : account_id;
 218   if (service->RefreshTokenIsAvailable(account_id_)) {
 219     StartFetchingOAuth2AccessToken();
 220   } else {
 221     service->AddObserver(this);
 222   }
 223 }
 224
 225 base::string16 ProfileDownloader::GetProfileFullName() const {
 226   return profile_full_name_;
 227 }
 228
 229 base::string16 ProfileDownloader::GetProfileGivenName() const {
 230   return profile_given_name_;
 231 }
 232
 233 std::string ProfileDownloader::GetProfileLocale() const {
 234   return profile_locale_;
 235 }
 236
 237 SkBitmap ProfileDownloader::GetProfilePicture() const {
 238   return profile_picture_;
 239 }
 240
 241 ProfileDownloader::PictureStatus ProfileDownloader::GetProfilePictureStatus()
 242     const {
 243   return picture_status_;
 244 }
 245
 246 std::string ProfileDownloader::GetProfilePictureURL() const {
 247   return picture_url_;
 248 }
 249
 250 void ProfileDownloader::StartFetchingImage() {
 251   DCHECK(!auth_token_.empty());
 252   VLOG(1) << "Fetching user entry with token: " << auth_token_;
 253   gaia_client_.reset(new gaia::GaiaOAuthClient(
 254       delegate_->GetBrowserProfile()->GetRequestContext()));
 255   gaia_client_->GetUserInfo(auth_token_, 0, this);
 256 }
 257
 258 void ProfileDownloader::StartFetchingOAuth2AccessToken() {
 259   Profile* profile = delegate_->GetBrowserProfile();
 260   OAuth2TokenService::ScopeSet scopes;
 261   scopes.insert(GaiaConstants::kGoogleUserInfoProfile);
 262   ProfileOAuth2TokenService* token_service =
 263       ProfileOAuth2TokenServiceFactory::GetForProfile(profile);
 264   oauth2_access_token_request_ = token_service->StartRequest(
 265       account_id_, scopes, this);
 266 }
 267
 268 ProfileDownloader::~ProfileDownloader() {
 269   // Ensures PO2TS observation is cleared when ProfileDownloader is destructed
 270   // before refresh token is available.
 271   ProfileOAuth2TokenService* service =
 272       ProfileOAuth2TokenServiceFactory::GetForProfile(
 273           delegate_->GetBrowserProfile());
 274   if (service)
 275     service->RemoveObserver(this);
 276 }
 277
 278 void ProfileDownloader::OnGetUserInfoResponse(
 279     scoped_ptr<base::DictionaryValue> user_info) {
 280     std::string image_url;
 281     if (!ParseProfileJSON(user_info.get(),
 282                           &profile_full_name_,
 283                           &profile_given_name_,
 284                           &image_url,
 285                           delegate_->GetDesiredImageSideLength(),
 286                           &profile_locale_)) {
 287       delegate_->OnProfileDownloadFailure(
 288           this, ProfileDownloaderDelegate::SERVICE_ERROR);
 289       return;
 290     }
 291     if (!delegate_->NeedsProfilePicture()) {
 292       VLOG(1) << "Skipping profile picture download";
 293       delegate_->OnProfileDownloadSuccess(this);
 294       return;
 295     }
 296     if (IsDefaultProfileImageURL(image_url)) {
 297       VLOG(1) << "User has default profile picture";
 298       picture_status_ = PICTURE_DEFAULT;
 299       delegate_->OnProfileDownloadSuccess(this);
 300       return;
 301     }
 302     if (!image_url.empty() && image_url == delegate_->GetCachedPictureURL()) {
 303       VLOG(1) << "Picture URL matches cached picture URL";
 304       picture_status_ = PICTURE_CACHED;
 305       delegate_->OnProfileDownloadSuccess(this);
 306       return;
 307     }
 308     VLOG(1) << "Fetching profile image from " << image_url;
 309     picture_url_ = image_url;
 310     profile_image_fetcher_.reset(net::URLFetcher::Create(
 311         GURL(image_url), net::URLFetcher::GET, this));
 312     profile_image_fetcher_->SetRequestContext(
 313         delegate_->GetBrowserProfile()->GetRequestContext());
 314     profile_image_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
 315                                          net::LOAD_DO_NOT_SAVE_COOKIES);
 316     if (!auth_token_.empty()) {
 317       profile_image_fetcher_->SetExtraRequestHeaders(
 318           base::StringPrintf(kAuthorizationHeader, auth_token_.c_str()));
 319     }
 320     profile_image_fetcher_->Start();
 321 }
 322
 323 void ProfileDownloader::OnOAuthError() {
 324   LOG(WARNING) << "OnOAuthError: Fetching profile data failed";
 325   delegate_->OnProfileDownloadFailure(
 326       this, ProfileDownloaderDelegate::SERVICE_ERROR);
 327 }
 328
 329 void ProfileDownloader::OnNetworkError(int response_code) {
 330   LOG(WARNING) << "OnNetworkError: Fetching profile data failed";
 331   DVLOG(1) << "  Response code: " << response_code;
 332   delegate_->OnProfileDownloadFailure(
 333       this, ProfileDownloaderDelegate::NETWORK_ERROR);
 334 }
 335
 336 void ProfileDownloader::OnURLFetchComplete(const net::URLFetcher* source) {
 337   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 338   std::string data;
 339   source->GetResponseAsString(&data);
 340   bool network_error =
 341       source->GetStatus().status() != net::URLRequestStatus::SUCCESS;
 342   if (network_error || source->GetResponseCode() != 200) {
 343     LOG(WARNING) << "Fetching profile data failed";
 344     DVLOG(1) << "  Status: " << source->GetStatus().status();
 345     DVLOG(1) << "  Error: " << source->GetStatus().error();
 346     DVLOG(1) << "  Response code: " << source->GetResponseCode();
 347     DVLOG(1) << "  Url: " << source->GetURL().spec();
 348     delegate_->OnProfileDownloadFailure(this, network_error ?
 349         ProfileDownloaderDelegate::NETWORK_ERROR :
 350         ProfileDownloaderDelegate::SERVICE_ERROR);
 351     return;
 352   }
 353
 354   VLOG(1) << "Decoding the image...";
 355   scoped_refptr<ImageDecoder> image_decoder = new ImageDecoder(
 356       this, data, ImageDecoder::DEFAULT_CODEC);
 357   scoped_refptr<base::MessageLoopProxy> task_runner =
 358       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI);
 359   image_decoder->Start(task_runner);
 360 }
 361
 362 void ProfileDownloader::OnImageDecoded(const ImageDecoder* decoder,
 363                                        const SkBitmap& decoded_image) {
 364   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 365   int image_size = delegate_->GetDesiredImageSideLength();
 366   profile_picture_ = skia::ImageOperations::Resize(
 367       decoded_image,
 368       skia::ImageOperations::RESIZE_BEST,
 369       image_size,
 370       image_size);
 371   picture_status_ = PICTURE_SUCCESS;
 372   delegate_->OnProfileDownloadSuccess(this);
 373 }
 374
 375 void ProfileDownloader::OnDecodeImageFailed(const ImageDecoder* decoder) {
 376   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 377   delegate_->OnProfileDownloadFailure(
 378       this, ProfileDownloaderDelegate::IMAGE_DECODE_FAILED);
 379 }
 380
 381 void ProfileDownloader::OnRefreshTokenAvailable(const std::string& account_id) {
 382   ProfileOAuth2TokenService* service =
 383       ProfileOAuth2TokenServiceFactory::GetForProfile(
 384           delegate_->GetBrowserProfile());
 385   if (account_id != account_id_)
 386     return;
 387
 388   service->RemoveObserver(this);
 389   StartFetchingOAuth2AccessToken();
 390 }
 391
 392 // Callback for OAuth2TokenService::Request on success. |access_token| is the
 393 // token used to start fetching user data.
 394 void ProfileDownloader::OnGetTokenSuccess(
 395     const OAuth2TokenService::Request* request,
 396     const std::string& access_token,
 397     const base::Time& expiration_time) {
 398   DCHECK_EQ(request, oauth2_access_token_request_.get());
 399   oauth2_access_token_request_.reset();
 400   auth_token_ = access_token;
 401   StartFetchingImage();
 402 }
 403
 404 // Callback for OAuth2TokenService::Request on failure.
 405 void ProfileDownloader::OnGetTokenFailure(
 406     const OAuth2TokenService::Request* request,
 407     const GoogleServiceAuthError& error) {
 408   DCHECK_EQ(request, oauth2_access_token_request_.get());
 409   oauth2_access_token_request_.reset();
 410   LOG(WARNING) << "ProfileDownloader: token request using refresh token failed:"
 411                << error.ToString();
 412   delegate_->OnProfileDownloadFailure(
 413       this, ProfileDownloaderDelegate::TOKEN_ERROR);
 414 }