chrome/common/localized_error.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 "chrome/common/localized_error.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/i18n/rtl.h"
   9 #include "base/logging.h"
  10 #include "base/metrics/field_trial.h"
  11 #include "base/strings/string16.h"
  12 #include "base/strings/string_number_conversions.h"
  13 #include "base/strings/string_util.h"
  14 #include "base/strings/utf_string_conversions.h"
  15 #include "base/values.h"
  16 #include "chrome/common/chrome_switches.h"
  17 #include "chrome/grit/chromium_strings.h"
  18 #include "chrome/grit/generated_resources.h"
  19 #include "components/error_page/common/error_page_params.h"
  20 #include "components/error_page/common/net_error_info.h"
  21 #include "net/base/escape.h"
  22 #include "net/base/net_errors.h"
  23 #include "net/base/net_util.h"
  24 #include "third_party/WebKit/public/platform/WebURLError.h"
  25 #include "ui/base/l10n/l10n_util.h"
  26 #include "ui/base/webui/web_ui_util.h"
  27
  28 #if defined(OS_WIN)
  29 #include "base/win/windows_version.h"
  30 #endif
  31
  32 #if defined(OS_CHROMEOS)
  33 #include "base/command_line.h"
  34 #include "chrome/common/chrome_switches.h"
  35 #endif
  36
  37 #if defined(ENABLE_EXTENSIONS)
  38 #include "extensions/common/constants.h"
  39 #include "extensions/common/extension_icon_set.h"
  40 #include "extensions/common/manifest_handlers/icons_handler.h"
  41 #endif
  42
  43 using blink::WebURLError;
  44
  45 // Some error pages have no details.
  46 const unsigned int kErrorPagesNoDetails = 0;
  47
  48 namespace {
  49
  50 static const char kRedirectLoopLearnMoreUrl[] =
  51     "https://support.google.com/chrome/answer/95626";
  52 static const char kWeakDHKeyLearnMoreUrl[] =
  53     "https://www.chromium.org/administrators/"
  54     "err_ssl_weak_server_ephemeral_dh_key";
  55 #if defined(OS_CHROMEOS)
  56 static const char kAppWarningLearnMoreUrl[] =
  57     "chrome-extension://honijodknafkokifofgiaalefdiedpko/main.html"
  58     "?answer=1721911";
  59 #endif  // defined(OS_CHROMEOS)
  60 static const char kCachedCopyButtonFieldTrial[] =
  61     "EnableGoogleCachedCopyTextExperiment";
  62 static const char kCachedCopyButtonExpTypeControl[] = "control";
  63 static const char kCachedCopyButtonExpTypeCopy[] = "copy";
  64 static const int kGoogleCachedCopySuggestionType = 0;
  65
  66 enum NAV_SUGGESTIONS {
  67   SUGGEST_NONE                  = 0,
  68   SUGGEST_RELOAD                = 1 << 0,
  69   SUGGEST_CHECK_CONNECTION      = 1 << 1,
  70   SUGGEST_DNS_CONFIG            = 1 << 2,
  71   SUGGEST_FIREWALL_CONFIG       = 1 << 3,
  72   SUGGEST_PROXY_CONFIG          = 1 << 4,
  73   SUGGEST_DISABLE_EXTENSION     = 1 << 5,
  74   SUGGEST_LEARNMORE             = 1 << 6,
  75   SUGGEST_VIEW_POLICIES         = 1 << 7,
  76   SUGGEST_CONTACT_ADMINISTRATOR = 1 << 8,
  77 };
  78
  79 struct LocalizedErrorMap {
  80   int error_code;
  81   unsigned int title_resource_id;
  82   unsigned int heading_resource_id;
  83   // Detailed summary used when the error is in the main frame.
  84   unsigned int summary_resource_id;
  85   // Short one sentence description shown on mouse over when the error is in
  86   // a frame.
  87   unsigned int details_resource_id;
  88   int suggestions;  // Bitmap of SUGGEST_* values.
  89 };
  90
  91 const LocalizedErrorMap net_error_options[] = {
  92   {net::ERR_TIMED_OUT,
  93    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
  94    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
  95    IDS_ERRORPAGES_SUMMARY_TIMED_OUT,
  96    IDS_ERRORPAGES_DETAILS_TIMED_OUT,
  97    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
  98        SUGGEST_PROXY_CONFIG,
  99   },
 100   {net::ERR_CONNECTION_TIMED_OUT,
 101    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 102    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 103    IDS_ERRORPAGES_SUMMARY_TIMED_OUT,
 104    IDS_ERRORPAGES_DETAILS_TIMED_OUT,
 105    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
 106        SUGGEST_PROXY_CONFIG,
 107   },
 108   {net::ERR_CONNECTION_CLOSED,
 109    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 110    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 111    IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
 112    IDS_ERRORPAGES_DETAILS_CONNECTION_CLOSED,
 113    SUGGEST_RELOAD,
 114   },
 115   {net::ERR_CONNECTION_RESET,
 116    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 117    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 118    IDS_ERRORPAGES_SUMMARY_CONNECTION_RESET,
 119    IDS_ERRORPAGES_DETAILS_CONNECTION_RESET,
 120    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
 121        SUGGEST_PROXY_CONFIG,
 122   },
 123   {net::ERR_CONNECTION_REFUSED,
 124    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 125    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 126    IDS_ERRORPAGES_SUMMARY_CONNECTION_REFUSED,
 127    IDS_ERRORPAGES_DETAILS_CONNECTION_REFUSED,
 128    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
 129        SUGGEST_PROXY_CONFIG,
 130   },
 131   {net::ERR_CONNECTION_FAILED,
 132    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 133    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 134    IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
 135    IDS_ERRORPAGES_DETAILS_CONNECTION_FAILED,
 136    SUGGEST_RELOAD,
 137   },
 138   {net::ERR_NAME_NOT_RESOLVED,
 139    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 140    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 141    IDS_ERRORPAGES_SUMMARY_NAME_NOT_RESOLVED,
 142    IDS_ERRORPAGES_DETAILS_NAME_NOT_RESOLVED,
 143    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_DNS_CONFIG |
 144        SUGGEST_FIREWALL_CONFIG | SUGGEST_PROXY_CONFIG,
 145   },
 146   {net::ERR_ICANN_NAME_COLLISION,
 147    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 148    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 149    IDS_ERRORPAGES_SUMMARY_ICANN_NAME_COLLISION,
 150    IDS_ERRORPAGES_DETAILS_ICANN_NAME_COLLISION,
 151    SUGGEST_NONE,
 152   },
 153   {net::ERR_ADDRESS_UNREACHABLE,
 154    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 155    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 156    IDS_ERRORPAGES_SUMMARY_ADDRESS_UNREACHABLE,
 157    IDS_ERRORPAGES_DETAILS_ADDRESS_UNREACHABLE,
 158    SUGGEST_RELOAD | SUGGEST_FIREWALL_CONFIG | SUGGEST_PROXY_CONFIG,
 159   },
 160   {net::ERR_NETWORK_ACCESS_DENIED,
 161    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 162    IDS_ERRORPAGES_HEADING_NETWORK_ACCESS_DENIED,
 163    IDS_ERRORPAGES_SUMMARY_NETWORK_ACCESS_DENIED,
 164    IDS_ERRORPAGES_DETAILS_NETWORK_ACCESS_DENIED,
 165    SUGGEST_FIREWALL_CONFIG,
 166   },
 167   {net::ERR_PROXY_CONNECTION_FAILED,
 168    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 169    IDS_ERRORPAGES_HEADING_PROXY_CONNECTION_FAILED,
 170    IDS_ERRORPAGES_SUMMARY_PROXY_CONNECTION_FAILED,
 171    IDS_ERRORPAGES_DETAILS_PROXY_CONNECTION_FAILED,
 172    SUGGEST_PROXY_CONFIG,
 173   },
 174   {net::ERR_INTERNET_DISCONNECTED,
 175    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 176    IDS_ERRORPAGES_HEADING_INTERNET_DISCONNECTED,
 177    IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED,
 178    IDS_ERRORPAGES_DETAILS_INTERNET_DISCONNECTED,
 179    SUGGEST_NONE,
 180   },
 181   {net::ERR_FILE_NOT_FOUND,
 182    IDS_ERRORPAGES_TITLE_NOT_FOUND,
 183    IDS_ERRORPAGES_HEADING_NOT_FOUND,
 184    IDS_ERRORPAGES_SUMMARY_NOT_FOUND,
 185    IDS_ERRORPAGES_DETAILS_FILE_NOT_FOUND,
 186    SUGGEST_NONE,
 187   },
 188   {net::ERR_CACHE_MISS,
 189    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 190    IDS_ERRORPAGES_HEADING_CACHE_MISS,
 191    IDS_ERRORPAGES_SUMMARY_CACHE_MISS,
 192    IDS_ERRORPAGES_DETAILS_CACHE_MISS,
 193    SUGGEST_RELOAD,
 194   },
 195   {net::ERR_CACHE_READ_FAILURE,
 196    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 197    IDS_ERRORPAGES_HEADING_CACHE_READ_FAILURE,
 198    IDS_ERRORPAGES_SUMMARY_CACHE_READ_FAILURE,
 199    IDS_ERRORPAGES_DETAILS_CACHE_READ_FAILURE,
 200    SUGGEST_RELOAD,
 201   },
 202   {net::ERR_NETWORK_IO_SUSPENDED,
 203    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 204    IDS_ERRORPAGES_HEADING_NETWORK_IO_SUSPENDED,
 205    IDS_ERRORPAGES_SUMMARY_NETWORK_IO_SUSPENDED,
 206    IDS_ERRORPAGES_DETAILS_NETWORK_IO_SUSPENDED,
 207    SUGGEST_RELOAD,
 208   },
 209   {net::ERR_TOO_MANY_REDIRECTS,
 210    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 211    IDS_ERRORPAGES_HEADING_TOO_MANY_REDIRECTS,
 212    IDS_ERRORPAGES_SUMMARY_TOO_MANY_REDIRECTS,
 213    IDS_ERRORPAGES_DETAILS_TOO_MANY_REDIRECTS,
 214    SUGGEST_RELOAD | SUGGEST_LEARNMORE,
 215   },
 216   {net::ERR_EMPTY_RESPONSE,
 217    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 218    IDS_ERRORPAGES_HEADING_EMPTY_RESPONSE,
 219    IDS_ERRORPAGES_SUMMARY_EMPTY_RESPONSE,
 220    IDS_ERRORPAGES_DETAILS_EMPTY_RESPONSE,
 221    SUGGEST_RELOAD,
 222   },
 223   {net::ERR_RESPONSE_HEADERS_MULTIPLE_CONTENT_LENGTH,
 224    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 225    IDS_ERRORPAGES_HEADING_DUPLICATE_HEADERS,
 226    IDS_ERRORPAGES_SUMMARY_DUPLICATE_HEADERS,
 227    IDS_ERRORPAGES_DETAILS_RESPONSE_HEADERS_MULTIPLE_CONTENT_LENGTH,
 228    SUGGEST_NONE,
 229   },
 230   {net::ERR_RESPONSE_HEADERS_MULTIPLE_CONTENT_DISPOSITION,
 231    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 232    IDS_ERRORPAGES_HEADING_DUPLICATE_HEADERS,
 233    IDS_ERRORPAGES_SUMMARY_DUPLICATE_HEADERS,
 234    IDS_ERRORPAGES_DETAILS_RESPONSE_HEADERS_MULTIPLE_CONTENT_DISPOSITION,
 235    SUGGEST_NONE,
 236   },
 237   {net::ERR_RESPONSE_HEADERS_MULTIPLE_LOCATION,
 238    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 239    IDS_ERRORPAGES_HEADING_DUPLICATE_HEADERS,
 240    IDS_ERRORPAGES_SUMMARY_DUPLICATE_HEADERS,
 241    IDS_ERRORPAGES_DETAILS_RESPONSE_HEADERS_MULTIPLE_LOCATION,
 242    SUGGEST_NONE,
 243   },
 244   {net::ERR_CONTENT_LENGTH_MISMATCH,
 245    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 246    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 247    IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
 248    IDS_ERRORPAGES_DETAILS_CONNECTION_CLOSED,
 249    SUGGEST_RELOAD,
 250   },
 251   {net::ERR_INCOMPLETE_CHUNKED_ENCODING,
 252    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 253    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 254    IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
 255    IDS_ERRORPAGES_DETAILS_CONNECTION_CLOSED,
 256    SUGGEST_RELOAD,
 257   },
 258   {net::ERR_SSL_PROTOCOL_ERROR,
 259    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 260    IDS_ERRORPAGES_HEADING_SSL_PROTOCOL_ERROR,
 261    IDS_ERRORPAGES_SUMMARY_SSL_PROTOCOL_ERROR,
 262    IDS_ERRORPAGES_DETAILS_SSL_PROTOCOL_ERROR,
 263    SUGGEST_NONE,
 264   },
 265   {net::ERR_BAD_SSL_CLIENT_AUTH_CERT,
 266    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 267    IDS_ERRORPAGES_HEADING_BAD_SSL_CLIENT_AUTH_CERT,
 268    IDS_ERRORPAGES_SUMMARY_BAD_SSL_CLIENT_AUTH_CERT,
 269    IDS_ERRORPAGES_DETAILS_BAD_SSL_CLIENT_AUTH_CERT,
 270    SUGGEST_NONE,
 271   },
 272   {net::ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY,
 273    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 274    IDS_ERRORPAGES_HEADING_WEAK_SERVER_EPHEMERAL_DH_KEY,
 275    IDS_ERRORPAGES_SUMMARY_WEAK_SERVER_EPHEMERAL_DH_KEY,
 276    IDS_ERRORPAGES_DETAILS_SSL_PROTOCOL_ERROR,
 277    SUGGEST_LEARNMORE,
 278   },
 279   {net::ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN,
 280    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 281    IDS_ERRORPAGES_HEADING_PINNING_FAILURE,
 282    IDS_ERRORPAGES_SUMMARY_PINNING_FAILURE,
 283    IDS_ERRORPAGES_DETAILS_PINNING_FAILURE,
 284    SUGGEST_NONE,
 285   },
 286   {net::ERR_TEMPORARILY_THROTTLED,
 287    IDS_ERRORPAGES_TITLE_ACCESS_DENIED,
 288    IDS_ERRORPAGES_HEADING_ACCESS_DENIED,
 289    IDS_ERRORPAGES_SUMMARY_TEMPORARILY_THROTTLED,
 290    IDS_ERRORPAGES_DETAILS_TEMPORARILY_THROTTLED,
 291    SUGGEST_NONE,
 292   },
 293   {net::ERR_BLOCKED_BY_CLIENT,
 294    IDS_ERRORPAGES_TITLE_BLOCKED,
 295    IDS_ERRORPAGES_HEADING_BLOCKED,
 296    IDS_ERRORPAGES_SUMMARY_BLOCKED,
 297    IDS_ERRORPAGES_DETAILS_BLOCKED,
 298    SUGGEST_RELOAD | SUGGEST_DISABLE_EXTENSION,
 299   },
 300   {net::ERR_NETWORK_CHANGED,
 301    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 302    IDS_ERRORPAGES_HEADING_NETWORK_ACCESS_DENIED,
 303    IDS_ERRORPAGES_SUMMARY_NETWORK_CHANGED,
 304    IDS_ERRORPAGES_DETAILS_NETWORK_CHANGED,
 305    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION,
 306   },
 307   {net::ERR_BLOCKED_BY_ADMINISTRATOR,
 308    IDS_ERRORPAGES_TITLE_BLOCKED,
 309    IDS_ERRORPAGES_HEADING_BLOCKED_BY_ADMINISTRATOR,
 310    IDS_ERRORPAGES_SUMMARY_BLOCKED_BY_ADMINISTRATOR,
 311    IDS_ERRORPAGES_DETAILS_BLOCKED_BY_ADMINISTRATOR,
 312    SUGGEST_VIEW_POLICIES | SUGGEST_CONTACT_ADMINISTRATOR,
 313   },
 314   {net::ERR_BLOCKED_ENROLLMENT_CHECK_PENDING,
 315    IDS_ERRORPAGES_TITLE_BLOCKED,
 316    IDS_ERRORPAGES_HEADING_BLOCKED_BY_ADMINISTRATOR,
 317    IDS_ERRORPAGES_SUMMARY_BLOCKED_ENROLLMENT_CHECK_PENDING,
 318    IDS_ERRORPAGES_DETAILS_BLOCKED_ENROLLMENT_CHECK_PENDING,
 319    SUGGEST_CHECK_CONNECTION,
 320   },
 321   {net::ERR_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
 322    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 323    IDS_ERRORPAGES_HEADING_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
 324    IDS_ERRORPAGES_SUMMARY_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
 325    IDS_ERRORPAGES_DETAILS_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
 326    SUGGEST_NONE,
 327   },
 328   {net::ERR_SSL_VERSION_OR_CIPHER_MISMATCH,
 329    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 330    IDS_ERRORPAGES_HEADING_SSL_VERSION_OR_CIPHER_MISMATCH,
 331    IDS_ERRORPAGES_SUMMARY_SSL_VERSION_OR_CIPHER_MISMATCH,
 332    IDS_ERRORPAGES_DETAILS_SSL_VERSION_OR_CIPHER_MISMATCH,
 333    SUGGEST_NONE,
 334   },
 335 };
 336
 337 // Special error page to be used in the case of navigating back to a page
 338 // generated by a POST.  LocalizedError::HasStrings expects this net error code
 339 // to also appear in the array above.
 340 const LocalizedErrorMap repost_error = {
 341   net::ERR_CACHE_MISS,
 342   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 343   IDS_HTTP_POST_WARNING_TITLE,
 344   IDS_ERRORPAGES_HTTP_POST_WARNING,
 345   IDS_ERRORPAGES_DETAILS_CACHE_MISS,
 346   SUGGEST_RELOAD,
 347 };
 348
 349 const LocalizedErrorMap http_error_options[] = {
 350   {403,
 351    IDS_ERRORPAGES_TITLE_ACCESS_DENIED,
 352    IDS_ERRORPAGES_HEADING_ACCESS_DENIED,
 353    IDS_ERRORPAGES_SUMMARY_FORBIDDEN,
 354    IDS_ERRORPAGES_DETAILS_FORBIDDEN,
 355    SUGGEST_NONE,
 356   },
 357   {410,
 358    IDS_ERRORPAGES_TITLE_NOT_FOUND,
 359    IDS_ERRORPAGES_HEADING_NOT_FOUND,
 360    IDS_ERRORPAGES_SUMMARY_GONE,
 361    IDS_ERRORPAGES_DETAILS_GONE,
 362    SUGGEST_NONE,
 363   },
 364
 365   {500,
 366    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 367    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 368    IDS_ERRORPAGES_SUMMARY_INTERNAL_SERVER_ERROR,
 369    IDS_ERRORPAGES_DETAILS_INTERNAL_SERVER_ERROR,
 370    SUGGEST_RELOAD,
 371   },
 372   {501,
 373    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 374    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 375    IDS_ERRORPAGES_SUMMARY_WEBSITE_CANNOT_HANDLE,
 376    IDS_ERRORPAGES_DETAILS_NOT_IMPLEMENTED,
 377    SUGGEST_NONE,
 378   },
 379   {502,
 380    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 381    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 382    IDS_ERRORPAGES_SUMMARY_BAD_GATEWAY,
 383    IDS_ERRORPAGES_DETAILS_BAD_GATEWAY,
 384    SUGGEST_RELOAD,
 385   },
 386   {503,
 387    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 388    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 389    IDS_ERRORPAGES_SUMMARY_SERVICE_UNAVAILABLE,
 390    IDS_ERRORPAGES_DETAILS_SERVICE_UNAVAILABLE,
 391    SUGGEST_RELOAD,
 392   },
 393   {504,
 394    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 395    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 396    IDS_ERRORPAGES_SUMMARY_GATEWAY_TIMEOUT,
 397    IDS_ERRORPAGES_DETAILS_GATEWAY_TIMEOUT,
 398    SUGGEST_RELOAD,
 399   },
 400   {505,
 401    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 402    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 403    IDS_ERRORPAGES_SUMMARY_WEBSITE_CANNOT_HANDLE,
 404    IDS_ERRORPAGES_DETAILS_HTTP_VERSION_NOT_SUPPORTED,
 405    SUGGEST_NONE,
 406   },
 407 };
 408
 409 const LocalizedErrorMap dns_probe_error_options[] = {
 410   {chrome_common_net::DNS_PROBE_POSSIBLE,
 411    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 412    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 413    IDS_ERRORPAGES_SUMMARY_DNS_PROBE_RUNNING,
 414    IDS_ERRORPAGES_DETAILS_DNS_PROBE_RUNNING,
 415    SUGGEST_RELOAD,
 416   },
 417
 418   // DNS_PROBE_NOT_RUN is not here; NetErrorHelper will restore the original
 419   // error, which might be one of several DNS-related errors.
 420
 421   {chrome_common_net::DNS_PROBE_STARTED,
 422    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 423    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 424    IDS_ERRORPAGES_SUMMARY_DNS_PROBE_RUNNING,
 425    IDS_ERRORPAGES_DETAILS_DNS_PROBE_RUNNING,
 426    // Include SUGGEST_RELOAD so the More button doesn't jump when we update.
 427    SUGGEST_RELOAD,
 428   },
 429
 430   // DNS_PROBE_FINISHED_UNKNOWN is not here; NetErrorHelper will restore the
 431   // original error, which might be one of several DNS-related errors.
 432
 433   {chrome_common_net::DNS_PROBE_FINISHED_NO_INTERNET,
 434    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 435    IDS_ERRORPAGES_HEADING_INTERNET_DISCONNECTED,
 436    IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED,
 437    IDS_ERRORPAGES_DETAILS_INTERNET_DISCONNECTED,
 438    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG,
 439   },
 440   {chrome_common_net::DNS_PROBE_FINISHED_BAD_CONFIG,
 441    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 442    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 443    IDS_ERRORPAGES_SUMMARY_NAME_NOT_RESOLVED,
 444    IDS_ERRORPAGES_DETAILS_NAME_NOT_RESOLVED,
 445    SUGGEST_RELOAD | SUGGEST_DNS_CONFIG | SUGGEST_FIREWALL_CONFIG,
 446   },
 447   {chrome_common_net::DNS_PROBE_FINISHED_NXDOMAIN,
 448    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 449    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 450    IDS_ERRORPAGES_SUMMARY_NAME_NOT_RESOLVED,
 451    IDS_ERRORPAGES_DETAILS_NAME_NOT_RESOLVED,
 452    SUGGEST_RELOAD,
 453   },
 454 };
 455
 456 const LocalizedErrorMap* FindErrorMapInArray(const LocalizedErrorMap* maps,
 457                                                    size_t num_maps,
 458                                                    int error_code) {
 459   for (size_t i = 0; i < num_maps; ++i) {
 460     if (maps[i].error_code == error_code)
 461       return &maps[i];
 462   }
 463   return NULL;
 464 }
 465
 466 const LocalizedErrorMap* LookupErrorMap(const std::string& error_domain,
 467                                         int error_code, bool is_post) {
 468   if (error_domain == net::kErrorDomain) {
 469     // Display a different page in the special case of navigating through the
 470     // history to an uncached page created by a POST.
 471     if (is_post && error_code == net::ERR_CACHE_MISS)
 472       return &repost_error;
 473     return FindErrorMapInArray(net_error_options,
 474                                arraysize(net_error_options),
 475                                error_code);
 476   } else if (error_domain == LocalizedError::kHttpErrorDomain) {
 477     return FindErrorMapInArray(http_error_options,
 478                                arraysize(http_error_options),
 479                                error_code);
 480   } else if (error_domain == chrome_common_net::kDnsProbeErrorDomain) {
 481     const LocalizedErrorMap* map =
 482         FindErrorMapInArray(dns_probe_error_options,
 483                             arraysize(dns_probe_error_options),
 484                             error_code);
 485     DCHECK(map);
 486     return map;
 487   } else {
 488     NOTREACHED();
 489     return NULL;
 490   }
 491 }
 492
 493 // Returns a dictionary containing the strings for the settings menu under the
 494 // wrench, and the advanced settings button.
 495 base::DictionaryValue* GetStandardMenuItemsText() {
 496   base::DictionaryValue* standard_menu_items_text = new base::DictionaryValue();
 497   standard_menu_items_text->SetString("settingsTitle",
 498       l10n_util::GetStringUTF16(IDS_SETTINGS_TITLE));
 499   standard_menu_items_text->SetString("advancedTitle",
 500       l10n_util::GetStringUTF16(IDS_SETTINGS_SHOW_ADVANCED_SETTINGS));
 501   return standard_menu_items_text;
 502 }
 503
 504 // Gets the icon class for a given |error_domain| and |error_code|.
 505 const char* GetIconClassForError(const std::string& error_domain,
 506                                  int error_code) {
 507   if ((error_code == net::ERR_INTERNET_DISCONNECTED &&
 508        error_domain == net::kErrorDomain) ||
 509       (error_code == chrome_common_net::DNS_PROBE_FINISHED_NO_INTERNET &&
 510        error_domain == chrome_common_net::kDnsProbeErrorDomain))
 511     return "icon-offline";
 512
 513   return "icon-generic";
 514 }
 515
 516 }  // namespace
 517
 518 const char LocalizedError::kHttpErrorDomain[] = "http";
 519
 520 void LocalizedError::GetStrings(int error_code,
 521                                 const std::string& error_domain,
 522                                 const GURL& failed_url,
 523                                 bool is_post,
 524                                 bool stale_copy_in_cache,
 525                                 const std::string& locale,
 526                                 const std::string& accept_languages,
 527                                 scoped_ptr<error_page::ErrorPageParams> params,
 528                                 base::DictionaryValue* error_strings) {
 529   webui::SetLoadTimeDataDefaults(locale, error_strings);
 530
 531   // Grab the strings and settings that depend on the error type.  Init
 532   // options with default values.
 533   LocalizedErrorMap options = {
 534     0,
 535     IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 536     IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 537     IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
 538     kErrorPagesNoDetails,
 539     SUGGEST_NONE,
 540   };
 541
 542   const LocalizedErrorMap* error_map = LookupErrorMap(error_domain, error_code,
 543                                                       is_post);
 544   if (error_map)
 545     options = *error_map;
 546
 547   // If we got "access denied" but the url was a file URL, then we say it was a
 548   // file instead of just using the "not available" default message. Just adding
 549   // ERR_ACCESS_DENIED to the map isn't sufficient, since that message may be
 550   // generated by some OSs when the operation doesn't involve a file URL.
 551   if (error_domain == net::kErrorDomain &&
 552       error_code == net::ERR_ACCESS_DENIED &&
 553       failed_url.scheme() == "file") {
 554     options.title_resource_id = IDS_ERRORPAGES_TITLE_ACCESS_DENIED;
 555     options.heading_resource_id = IDS_ERRORPAGES_HEADING_FILE_ACCESS_DENIED;
 556     options.summary_resource_id = IDS_ERRORPAGES_SUMMARY_FILE_ACCESS_DENIED;
 557     options.details_resource_id = IDS_ERRORPAGES_DETAILS_FILE_ACCESS_DENIED;
 558     options.suggestions = SUGGEST_NONE;
 559   }
 560
 561   base::string16 failed_url_string(net::FormatUrl(
 562       failed_url, accept_languages, net::kFormatUrlOmitNothing,
 563       net::UnescapeRule::NORMAL, NULL, NULL, NULL));
 564   // URLs are always LTR.
 565   if (base::i18n::IsRTL())
 566     base::i18n::WrapStringWithLTRFormatting(&failed_url_string);
 567   error_strings->SetString("title",
 568       l10n_util::GetStringFUTF16(options.title_resource_id, failed_url_string));
 569   error_strings->SetString("heading",
 570       l10n_util::GetStringUTF16(options.heading_resource_id));
 571
 572   std::string icon_class = GetIconClassForError(error_domain, error_code);
 573   error_strings->SetString("iconClass", icon_class);
 574
 575   base::DictionaryValue* summary = new base::DictionaryValue;
 576
 577   // For offline show a summary message underneath the heading.
 578   if (error_code == net::ERR_INTERNET_DISCONNECTED ||
 579       error_code == chrome_common_net::DNS_PROBE_FINISHED_NO_INTERNET) {
 580     error_strings->SetString("primaryParagraph",
 581         l10n_util::GetStringUTF16(options.summary_resource_id));
 582
 583 #if defined(OS_CHROMEOS)
 584     base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 585
 586     // Check if easter egg should be disabled.
 587     if (command_line->HasSwitch(switches::kDisableDinosaurEasterEgg)) {
 588       // The prescence of this string disables the easter egg. Acts as a flag.
 589       error_strings->SetString("disabledEasterEgg",
 590           l10n_util::GetStringUTF16(IDS_ERRORPAGE_FUN_DISABLED));
 591     }
 592 #endif
 593
 594   } else {
 595     // Set summary message in the details.
 596     summary->SetString("msg",
 597         l10n_util::GetStringUTF16(options.summary_resource_id));
 598   }
 599   summary->SetString("failedUrl", failed_url_string);
 600   summary->SetString("hostName", net::IDNToUnicode(failed_url.host(),
 601                                                    accept_languages));
 602   summary->SetString("productName",
 603                      l10n_util::GetStringUTF16(IDS_PRODUCT_NAME));
 604
 605   error_strings->SetString(
 606       "details", l10n_util::GetStringUTF16(IDS_ERRORPAGE_NET_BUTTON_DETAILS));
 607   error_strings->SetString(
 608       "hideDetails", l10n_util::GetStringUTF16(
 609           IDS_ERRORPAGE_NET_BUTTON_HIDE_DETAILS));
 610   error_strings->Set("summary", summary);
 611
 612   if (options.details_resource_id != kErrorPagesNoDetails) {
 613     error_strings->SetString(
 614         "errorDetails", l10n_util::GetStringUTF16(options.details_resource_id));
 615   }
 616
 617   base::string16 error_string;
 618   if (error_domain == net::kErrorDomain) {
 619     // Non-internationalized error string, for debugging Chrome itself.
 620     error_string = base::ASCIIToUTF16(net::ErrorToShortString(error_code));
 621   } else if (error_domain == chrome_common_net::kDnsProbeErrorDomain) {
 622     std::string ascii_error_string =
 623         chrome_common_net::DnsProbeStatusToString(error_code);
 624     error_string = base::ASCIIToUTF16(ascii_error_string);
 625   } else {
 626     DCHECK_EQ(LocalizedError::kHttpErrorDomain, error_domain);
 627     error_string = base::IntToString16(error_code);
 628   }
 629   error_strings->SetString("errorCode",
 630       l10n_util::GetStringFUTF16(IDS_ERRORPAGES_ERROR_CODE, error_string));
 631
 632   // Platform specific information for diagnosing network issues on OSX and
 633   // Windows.
 634 #if defined(OS_MACOSX) || defined(OS_WIN)
 635   if (error_domain == net::kErrorDomain &&
 636       error_code == net::ERR_INTERNET_DISCONNECTED) {
 637     int platform_string_id =
 638         IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM;
 639 #if defined(OS_WIN)
 640     // Different versions of Windows have different instructions.
 641     base::win::Version windows_version = base::win::GetVersion();
 642     if (windows_version < base::win::VERSION_VISTA) {
 643       // XP, XP64, and Server 2003.
 644       platform_string_id =
 645           IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM_XP;
 646     } else if (windows_version == base::win::VERSION_VISTA) {
 647       // Vista
 648       platform_string_id =
 649           IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM_VISTA;
 650     }
 651 #endif  // defined(OS_WIN)
 652     // Platform dependent portion of the summary section.
 653     summary->SetString("msg",
 654         l10n_util::GetStringFUTF16(
 655             IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_INSTRUCTIONS_TEMPLATE,
 656             l10n_util::GetStringUTF16(platform_string_id)));
 657   }
 658 #endif  // defined(OS_MACOSX) || defined(OS_WIN)
 659
 660   // If no parameters were provided, use the defaults.
 661   if (!params) {
 662     params.reset(new error_page::ErrorPageParams());
 663     params->suggest_reload = !!(options.suggestions & SUGGEST_RELOAD);
 664   }
 665
 666   base::ListValue* suggestions = NULL;
 667   bool use_default_suggestions = true;
 668   if (!params->override_suggestions) {
 669     suggestions = new base::ListValue();
 670   } else {
 671     suggestions = params->override_suggestions.release();
 672     use_default_suggestions = false;
 673     EnableGoogleCachedCopyButtonExperiment(suggestions, error_strings);
 674   }
 675
 676   error_strings->Set("suggestions", suggestions);
 677
 678   if (params->search_url.is_valid()) {
 679     error_strings->SetString("searchHeader",
 680         l10n_util::GetStringUTF16(IDS_ERRORPAGES_SUGGESTION_GOOGLE_SEARCH));
 681     error_strings->SetString("searchUrl", params->search_url.spec());
 682     error_strings->SetString("searchTerms", params->search_terms);
 683     error_strings->SetInteger("searchTrackingId", params->search_tracking_id);
 684   }
 685
 686   // Add the reload suggestion, if needed.
 687   if (params->suggest_reload) {
 688     if (!is_post) {
 689       base::DictionaryValue* reload_button = new base::DictionaryValue;
 690       reload_button->SetString(
 691           "msg", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_RELOAD));
 692       reload_button->SetString("reloadUrl", failed_url.spec());
 693       error_strings->Set("reloadButton", reload_button);
 694       reload_button->SetInteger("reloadTrackingId", params->reload_tracking_id);
 695     } else {
 696       // If the page was created by a post, it can't be reloaded in the same
 697       // way, so just add a suggestion instead.
 698       // TODO(mmenke):  Make the reload button bring up the repost confirmation
 699       //                dialog for pages resulting from posts.
 700       base::DictionaryValue* suggest_reload_repost = new base::DictionaryValue;
 701       suggest_reload_repost->SetString("header",
 702           l10n_util::GetStringUTF16(
 703               IDS_ERRORPAGES_SUGGESTION_RELOAD_REPOST_HEADER));
 704       suggest_reload_repost->SetString("body",
 705           l10n_util::GetStringUTF16(
 706               IDS_ERRORPAGES_SUGGESTION_RELOAD_REPOST_BODY));
 707       // Add at the front, so it appears before other suggestions, in the case
 708       // suggestions are being overridden by |params|.
 709       suggestions->Insert(0, suggest_reload_repost);
 710     }
 711   }
 712
 713   // If not using the default suggestions, nothing else to do.
 714   if (!use_default_suggestions)
 715     return;
 716
 717   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 718   const std::string& show_saved_copy_value =
 719       command_line->GetSwitchValueASCII(switches::kShowSavedCopy);
 720   bool show_saved_copy_primary = (show_saved_copy_value ==
 721       switches::kEnableShowSavedCopyPrimary);
 722   bool show_saved_copy_secondary = (show_saved_copy_value ==
 723       switches::kEnableShowSavedCopySecondary);
 724   bool show_saved_copy_visible =
 725       (stale_copy_in_cache && !is_post &&
 726       (show_saved_copy_primary || show_saved_copy_secondary));
 727
 728   if (show_saved_copy_visible) {
 729     base::DictionaryValue* show_saved_copy_button = new base::DictionaryValue;
 730     show_saved_copy_button->SetString(
 731         "msg", l10n_util::GetStringUTF16(
 732             IDS_ERRORPAGES_BUTTON_SHOW_SAVED_COPY));
 733     show_saved_copy_button->SetString(
 734         "title",
 735         l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_SHOW_SAVED_COPY_HELP));
 736     if (show_saved_copy_primary)
 737       show_saved_copy_button->SetString("primary", "true");
 738     error_strings->Set("showSavedCopyButton", show_saved_copy_button);
 739   }
 740
 741 #if defined(OS_CHROMEOS)
 742   error_strings->SetString(
 743       "diagnose", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_DIAGNOSE));
 744 #endif  // defined(OS_CHROMEOS)
 745
 746   if (options.suggestions & SUGGEST_CHECK_CONNECTION) {
 747     base::DictionaryValue* suggest_check_connection = new base::DictionaryValue;
 748     suggest_check_connection->SetString("header",
 749         l10n_util::GetStringUTF16(
 750             IDS_ERRORPAGES_SUGGESTION_CHECK_CONNECTION_HEADER));
 751     suggest_check_connection->SetString("body",
 752         l10n_util::GetStringUTF16(
 753             IDS_ERRORPAGES_SUGGESTION_CHECK_CONNECTION_BODY));
 754     suggestions->Append(suggest_check_connection);
 755   }
 756
 757   if (options.suggestions & SUGGEST_DNS_CONFIG) {
 758     base::DictionaryValue* suggest_dns_config = new base::DictionaryValue;
 759     suggest_dns_config->SetString("header",
 760         l10n_util::GetStringUTF16(
 761             IDS_ERRORPAGES_SUGGESTION_DNS_CONFIG_HEADER));
 762     suggest_dns_config->SetString("body",
 763         l10n_util::GetStringUTF16(
 764             IDS_ERRORPAGES_SUGGESTION_DNS_CONFIG_BODY));
 765     suggestions->Append(suggest_dns_config);
 766
 767     base::DictionaryValue* suggest_network_prediction =
 768         GetStandardMenuItemsText();
 769     suggest_network_prediction->SetString("header",
 770         l10n_util::GetStringUTF16(
 771             IDS_ERRORPAGES_SUGGESTION_NETWORK_PREDICTION_HEADER));
 772     suggest_network_prediction->SetString("body",
 773         l10n_util::GetStringUTF16(
 774             IDS_ERRORPAGES_SUGGESTION_NETWORK_PREDICTION_BODY));
 775     suggest_network_prediction->SetString(
 776         "noNetworkPredictionTitle",
 777         l10n_util::GetStringUTF16(
 778             IDS_NETWORK_PREDICTION_ENABLED_DESCRIPTION));
 779     suggestions->Append(suggest_network_prediction);
 780   }
 781
 782   if (options.suggestions & SUGGEST_FIREWALL_CONFIG) {
 783     base::DictionaryValue* suggest_firewall_config = new base::DictionaryValue;
 784     suggest_firewall_config->SetString("header",
 785         l10n_util::GetStringUTF16(
 786             IDS_ERRORPAGES_SUGGESTION_FIREWALL_CONFIG_HEADER));
 787     suggest_firewall_config->SetString("body",
 788         l10n_util::GetStringUTF16(
 789             IDS_ERRORPAGES_SUGGESTION_FIREWALL_CONFIG_BODY));
 790     suggestions->Append(suggest_firewall_config);
 791   }
 792
 793   if (options.suggestions & SUGGEST_PROXY_CONFIG) {
 794     base::DictionaryValue* suggest_proxy_config = GetStandardMenuItemsText();
 795     suggest_proxy_config->SetString("header",
 796         l10n_util::GetStringUTF16(
 797             IDS_ERRORPAGES_SUGGESTION_PROXY_CONFIG_HEADER));
 798     suggest_proxy_config->SetString("body",
 799         l10n_util::GetStringFUTF16(IDS_ERRORPAGES_SUGGESTION_PROXY_CONFIG_BODY,
 800             l10n_util::GetStringUTF16(
 801                 IDS_ERRORPAGES_SUGGESTION_PROXY_DISABLE_PLATFORM)));
 802     suggest_proxy_config->SetString("proxyTitle",
 803         l10n_util::GetStringUTF16(IDS_OPTIONS_PROXIES_CONFIGURE_BUTTON));
 804
 805     suggestions->Append(suggest_proxy_config);
 806   }
 807
 808   if (options.suggestions & SUGGEST_DISABLE_EXTENSION) {
 809     base::DictionaryValue* suggest_disable_extension =
 810         new base::DictionaryValue;
 811     // There's only a header for this suggestion.
 812     suggest_disable_extension->SetString("header",
 813         l10n_util::GetStringUTF16(
 814             IDS_ERRORPAGES_SUGGESTION_DISABLE_EXTENSION_HEADER));
 815     suggestions->Append(suggest_disable_extension);
 816   }
 817
 818   if (options.suggestions & SUGGEST_VIEW_POLICIES) {
 819     base::DictionaryValue* suggest_view_policies = new base::DictionaryValue;
 820     suggest_view_policies->SetString(
 821         "header",
 822         l10n_util::GetStringUTF16(
 823             IDS_ERRORPAGES_SUGGESTION_VIEW_POLICIES_HEADER));
 824     suggest_view_policies->SetString(
 825         "body",
 826         l10n_util::GetStringUTF16(
 827             IDS_ERRORPAGES_SUGGESTION_VIEW_POLICIES_BODY));
 828     suggestions->Append(suggest_view_policies);
 829   }
 830
 831   if (options.suggestions & SUGGEST_CONTACT_ADMINISTRATOR) {
 832     base::DictionaryValue* suggest_contant_administrator =
 833         new base::DictionaryValue;
 834     suggest_contant_administrator->SetString(
 835         "body",
 836         l10n_util::GetStringUTF16(
 837             IDS_ERRORPAGES_SUGGESTION_CONTACT_ADMINISTRATOR_BODY));
 838     suggestions->Append(suggest_contant_administrator);
 839   }
 840
 841   if (options.suggestions & SUGGEST_LEARNMORE) {
 842     GURL learn_more_url;
 843     switch (options.error_code) {
 844       case net::ERR_TOO_MANY_REDIRECTS:
 845         learn_more_url = GURL(kRedirectLoopLearnMoreUrl);
 846         break;
 847       case net::ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY:
 848         learn_more_url = GURL(kWeakDHKeyLearnMoreUrl);
 849         break;
 850       default:
 851         break;
 852     }
 853
 854     if (learn_more_url.is_valid()) {
 855       // Add the language parameter to the URL.
 856       std::string query = learn_more_url.query() + "&hl=" + locale;
 857       GURL::Replacements repl;
 858       repl.SetQueryStr(query);
 859       learn_more_url = learn_more_url.ReplaceComponents(repl);
 860
 861       base::DictionaryValue* suggest_learn_more = new base::DictionaryValue;
 862       // There's only a body for this suggestion.
 863       suggest_learn_more->SetString("body",
 864           l10n_util::GetStringUTF16(IDS_ERRORPAGES_SUGGESTION_LEARNMORE_BODY));
 865       suggest_learn_more->SetString("learnMoreUrl", learn_more_url.spec());
 866       suggestions->Append(suggest_learn_more);
 867     }
 868   }
 869 }
 870
 871 base::string16 LocalizedError::GetErrorDetails(const blink::WebURLError& error,
 872                                                bool is_post) {
 873   const LocalizedErrorMap* error_map =
 874       LookupErrorMap(error.domain.utf8(), error.reason, is_post);
 875   if (error_map)
 876     return l10n_util::GetStringUTF16(error_map->details_resource_id);
 877   else
 878     return l10n_util::GetStringUTF16(IDS_ERRORPAGES_DETAILS_UNKNOWN);
 879 }
 880
 881 bool LocalizedError::HasStrings(const std::string& error_domain,
 882                                 int error_code) {
 883   // Whether or not the there are strings for an error does not depend on
 884   // whether or not the page was be generated by a POST, so just claim it was
 885   // not.
 886   return LookupErrorMap(error_domain, error_code, /*is_post=*/false) != NULL;
 887 }
 888
 889 #if defined(ENABLE_EXTENSIONS)
 890 void LocalizedError::GetAppErrorStrings(
 891     const GURL& display_url,
 892     const extensions::Extension* app,
 893     const std::string& locale,
 894     base::DictionaryValue* error_strings) {
 895   DCHECK(app);
 896
 897   webui::SetLoadTimeDataDefaults(locale, error_strings);
 898
 899   base::string16 failed_url(base::ASCIIToUTF16(display_url.spec()));
 900   // URLs are always LTR.
 901   if (base::i18n::IsRTL())
 902     base::i18n::WrapStringWithLTRFormatting(&failed_url);
 903   error_strings->SetString(
 904      "url", l10n_util::GetStringFUTF16(IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 905                                        failed_url.c_str()));
 906
 907   error_strings->SetString("title", app->name());
 908   error_strings->SetString(
 909       "icon",
 910       extensions::IconsInfo::GetIconURL(
 911           app,
 912           extension_misc::EXTENSION_ICON_GIGANTOR,
 913           ExtensionIconSet::MATCH_SMALLER).spec());
 914   error_strings->SetString("name", app->name());
 915   error_strings->SetString(
 916       "msg",
 917       l10n_util::GetStringUTF16(IDS_ERRORPAGES_APP_WARNING));
 918
 919 #if defined(OS_CHROMEOS)
 920   GURL learn_more_url(kAppWarningLearnMoreUrl);
 921   base::DictionaryValue* suggest_learn_more = new base::DictionaryValue();
 922   suggest_learn_more->SetString("msg",
 923                                 l10n_util::GetStringUTF16(
 924                                     IDS_ERRORPAGES_SUGGESTION_LEARNMORE_BODY));
 925   suggest_learn_more->SetString("learnMoreUrl", learn_more_url.spec());
 926   error_strings->Set("suggestionsLearnMore", suggest_learn_more);
 927 #endif  // defined(OS_CHROMEOS)
 928 }
 929 #endif
 930
 931 void LocalizedError::EnableGoogleCachedCopyButtonExperiment(
 932     base::ListValue* suggestions,
 933     base::DictionaryValue* error_strings) {
 934   std::string field_trial_exp_type_ =
 935       base::FieldTrialList::FindFullName(kCachedCopyButtonFieldTrial);
 936
 937   // If the first suggestion is for a Google cache copy. Promote the
 938   // suggestion to a separate set of strings for displaying as a button.
 939   if (!suggestions->empty() && !field_trial_exp_type_.empty() &&
 940       field_trial_exp_type_ != kCachedCopyButtonExpTypeControl) {
 941     base::DictionaryValue* suggestion;
 942     suggestions->GetDictionary(0, &suggestion);
 943     int type = -1;
 944     suggestion->GetInteger("type", &type);
 945
 946     if (type == kGoogleCachedCopySuggestionType) {
 947       base::string16 cache_url;
 948       suggestion->GetString("urlCorrection", &cache_url);
 949       int cache_tracking_id = -1;
 950       suggestion->GetInteger("trackingId", &cache_tracking_id);
 951
 952       scoped_ptr<base::DictionaryValue> cache_button(new base::DictionaryValue);
 953
 954       if (field_trial_exp_type_ == kCachedCopyButtonExpTypeCopy) {
 955         cache_button->SetString(
 956             "msg",
 957             l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_SHOW_CACHED_COPY));
 958       } else {
 959         // Default to "Show cached page" button label.
 960         cache_button->SetString(
 961             "msg",
 962             l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_SHOW_CACHED_PAGE));
 963       }
 964       cache_button->SetString("cacheUrl", cache_url);
 965       cache_button->SetInteger("trackingId", cache_tracking_id);
 966       error_strings->Set("cacheButton", cache_button.release());
 967
 968       // Remove the item from suggestions dictionary so that it does not get
 969       // displayed by the template in the details section.
 970       suggestions->Remove(0, nullptr);
 971     }
 972   }
 973 }