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