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_ICANN_NAME_COLLISION,
 141    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 142    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 143    IDS_ERRORPAGES_SUMMARY_ICANN_NAME_COLLISION,
 144    IDS_ERRORPAGES_DETAILS_ICANN_NAME_COLLISION,
 145    SUGGEST_NONE,
 146   },
 147   {net::ERR_ADDRESS_UNREACHABLE,
 148    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 149    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 150    IDS_ERRORPAGES_SUMMARY_ADDRESS_UNREACHABLE,
 151    IDS_ERRORPAGES_DETAILS_ADDRESS_UNREACHABLE,
 152    SUGGEST_RELOAD | SUGGEST_FIREWALL_CONFIG | SUGGEST_PROXY_CONFIG,
 153   },
 154   {net::ERR_NETWORK_ACCESS_DENIED,
 155    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 156    IDS_ERRORPAGES_HEADING_NETWORK_ACCESS_DENIED,
 157    IDS_ERRORPAGES_SUMMARY_NETWORK_ACCESS_DENIED,
 158    IDS_ERRORPAGES_DETAILS_NETWORK_ACCESS_DENIED,
 159    SUGGEST_FIREWALL_CONFIG,
 160   },
 161   {net::ERR_PROXY_CONNECTION_FAILED,
 162    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 163    IDS_ERRORPAGES_HEADING_PROXY_CONNECTION_FAILED,
 164    IDS_ERRORPAGES_SUMMARY_PROXY_CONNECTION_FAILED,
 165    IDS_ERRORPAGES_DETAILS_PROXY_CONNECTION_FAILED,
 166    SUGGEST_PROXY_CONFIG,
 167   },
 168   {net::ERR_INTERNET_DISCONNECTED,
 169    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 170    IDS_ERRORPAGES_HEADING_INTERNET_DISCONNECTED,
 171    IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED,
 172    IDS_ERRORPAGES_DETAILS_INTERNET_DISCONNECTED,
 173    SUGGEST_NONE,
 174   },
 175   {net::ERR_FILE_NOT_FOUND,
 176    IDS_ERRORPAGES_TITLE_NOT_FOUND,
 177    IDS_ERRORPAGES_HEADING_NOT_FOUND,
 178    IDS_ERRORPAGES_SUMMARY_NOT_FOUND,
 179    IDS_ERRORPAGES_DETAILS_FILE_NOT_FOUND,
 180    SUGGEST_NONE,
 181   },
 182   {net::ERR_CACHE_MISS,
 183    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 184    IDS_ERRORPAGES_HEADING_CACHE_MISS,
 185    IDS_ERRORPAGES_SUMMARY_CACHE_MISS,
 186    IDS_ERRORPAGES_DETAILS_CACHE_MISS,
 187    SUGGEST_RELOAD,
 188   },
 189   {net::ERR_CACHE_READ_FAILURE,
 190    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 191    IDS_ERRORPAGES_HEADING_CACHE_READ_FAILURE,
 192    IDS_ERRORPAGES_SUMMARY_CACHE_READ_FAILURE,
 193    IDS_ERRORPAGES_DETAILS_CACHE_READ_FAILURE,
 194    SUGGEST_RELOAD,
 195   },
 196   {net::ERR_NETWORK_IO_SUSPENDED,
 197    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 198    IDS_ERRORPAGES_HEADING_NETWORK_IO_SUSPENDED,
 199    IDS_ERRORPAGES_SUMMARY_NETWORK_IO_SUSPENDED,
 200    IDS_ERRORPAGES_DETAILS_NETWORK_IO_SUSPENDED,
 201    SUGGEST_RELOAD,
 202   },
 203   {net::ERR_TOO_MANY_REDIRECTS,
 204    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 205    IDS_ERRORPAGES_HEADING_TOO_MANY_REDIRECTS,
 206    IDS_ERRORPAGES_SUMMARY_TOO_MANY_REDIRECTS,
 207    IDS_ERRORPAGES_DETAILS_TOO_MANY_REDIRECTS,
 208    SUGGEST_RELOAD | SUGGEST_LEARNMORE,
 209   },
 210   {net::ERR_EMPTY_RESPONSE,
 211    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 212    IDS_ERRORPAGES_HEADING_EMPTY_RESPONSE,
 213    IDS_ERRORPAGES_SUMMARY_EMPTY_RESPONSE,
 214    IDS_ERRORPAGES_DETAILS_EMPTY_RESPONSE,
 215    SUGGEST_RELOAD,
 216   },
 217   {net::ERR_RESPONSE_HEADERS_MULTIPLE_CONTENT_LENGTH,
 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_LENGTH,
 222    SUGGEST_NONE,
 223   },
 224   {net::ERR_RESPONSE_HEADERS_MULTIPLE_CONTENT_DISPOSITION,
 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_CONTENT_DISPOSITION,
 229    SUGGEST_NONE,
 230   },
 231   {net::ERR_RESPONSE_HEADERS_MULTIPLE_LOCATION,
 232    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 233    IDS_ERRORPAGES_HEADING_DUPLICATE_HEADERS,
 234    IDS_ERRORPAGES_SUMMARY_DUPLICATE_HEADERS,
 235    IDS_ERRORPAGES_DETAILS_RESPONSE_HEADERS_MULTIPLE_LOCATION,
 236    SUGGEST_NONE,
 237   },
 238   {net::ERR_CONTENT_LENGTH_MISMATCH,
 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_INCOMPLETE_CHUNKED_ENCODING,
 246    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 247    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 248    IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
 249    IDS_ERRORPAGES_DETAILS_CONNECTION_CLOSED,
 250    SUGGEST_RELOAD,
 251   },
 252   {net::ERR_SSL_PROTOCOL_ERROR,
 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_PROTOCOL_ERROR,
 257    SUGGEST_NONE,
 258   },
 259   {net::ERR_SSL_UNSAFE_NEGOTIATION,
 260    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 261    IDS_ERRORPAGES_HEADING_SSL_PROTOCOL_ERROR,
 262    IDS_ERRORPAGES_SUMMARY_SSL_PROTOCOL_ERROR,
 263    IDS_ERRORPAGES_DETAILS_SSL_UNSAFE_NEGOTIATION,
 264    SUGGEST_NONE,
 265   },
 266   {net::ERR_BAD_SSL_CLIENT_AUTH_CERT,
 267    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 268    IDS_ERRORPAGES_HEADING_BAD_SSL_CLIENT_AUTH_CERT,
 269    IDS_ERRORPAGES_SUMMARY_BAD_SSL_CLIENT_AUTH_CERT,
 270    IDS_ERRORPAGES_DETAILS_BAD_SSL_CLIENT_AUTH_CERT,
 271    SUGGEST_NONE,
 272   },
 273   {net::ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY,
 274    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 275    IDS_ERRORPAGES_HEADING_WEAK_SERVER_EPHEMERAL_DH_KEY,
 276    IDS_ERRORPAGES_SUMMARY_WEAK_SERVER_EPHEMERAL_DH_KEY,
 277    IDS_ERRORPAGES_DETAILS_SSL_PROTOCOL_ERROR,
 278    SUGGEST_LEARNMORE,
 279   },
 280   {net::ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN,
 281    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 282    IDS_ERRORPAGES_HEADING_PINNING_FAILURE,
 283    IDS_ERRORPAGES_SUMMARY_PINNING_FAILURE,
 284    IDS_ERRORPAGES_DETAILS_PINNING_FAILURE,
 285    SUGGEST_NONE,
 286   },
 287   {net::ERR_TEMPORARILY_THROTTLED,
 288    IDS_ERRORPAGES_TITLE_ACCESS_DENIED,
 289    IDS_ERRORPAGES_HEADING_ACCESS_DENIED,
 290    IDS_ERRORPAGES_SUMMARY_TEMPORARILY_THROTTLED,
 291    IDS_ERRORPAGES_DETAILS_TEMPORARILY_THROTTLED,
 292    SUGGEST_NONE,
 293   },
 294   {net::ERR_BLOCKED_BY_CLIENT,
 295    IDS_ERRORPAGES_TITLE_BLOCKED,
 296    IDS_ERRORPAGES_HEADING_BLOCKED,
 297    IDS_ERRORPAGES_SUMMARY_BLOCKED,
 298    IDS_ERRORPAGES_DETAILS_BLOCKED,
 299    SUGGEST_RELOAD | SUGGEST_DISABLE_EXTENSION,
 300   },
 301   {net::ERR_NETWORK_CHANGED,
 302    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 303    IDS_ERRORPAGES_HEADING_NETWORK_ACCESS_DENIED,
 304    IDS_ERRORPAGES_SUMMARY_NETWORK_CHANGED,
 305    IDS_ERRORPAGES_DETAILS_NETWORK_CHANGED,
 306    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION,
 307   },
 308   {net::ERR_BLOCKED_BY_ADMINISTRATOR,
 309    IDS_ERRORPAGES_TITLE_BLOCKED,
 310    IDS_ERRORPAGES_HEADING_BLOCKED_BY_ADMINISTRATOR,
 311    IDS_ERRORPAGES_SUMMARY_BLOCKED_BY_ADMINISTRATOR,
 312    IDS_ERRORPAGES_DETAILS_BLOCKED_BY_ADMINISTRATOR,
 313    SUGGEST_VIEW_POLICIES | SUGGEST_CONTACT_ADMINISTRATOR,
 314   },
 315   {net::ERR_BLOCKED_ENROLLMENT_CHECK_PENDING,
 316    IDS_ERRORPAGES_TITLE_BLOCKED,
 317    IDS_ERRORPAGES_HEADING_BLOCKED_BY_ADMINISTRATOR,
 318    IDS_ERRORPAGES_SUMMARY_BLOCKED_ENROLLMENT_CHECK_PENDING,
 319    IDS_ERRORPAGES_DETAILS_BLOCKED_ENROLLMENT_CHECK_PENDING,
 320    SUGGEST_CHECK_CONNECTION,
 321   },
 322   {net::ERR_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
 323    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 324    IDS_ERRORPAGES_HEADING_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
 325    IDS_ERRORPAGES_SUMMARY_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
 326    IDS_ERRORPAGES_DETAILS_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
 327    SUGGEST_NONE,
 328   },
 329   {net::ERR_SSL_VERSION_OR_CIPHER_MISMATCH,
 330    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 331    IDS_ERRORPAGES_HEADING_SSL_VERSION_OR_CIPHER_MISMATCH,
 332    IDS_ERRORPAGES_SUMMARY_SSL_VERSION_OR_CIPHER_MISMATCH,
 333    IDS_ERRORPAGES_DETAILS_SSL_VERSION_OR_CIPHER_MISMATCH,
 334    SUGGEST_NONE,
 335   },
 336 };
 337
 338 // Special error page to be used in the case of navigating back to a page
 339 // generated by a POST.  LocalizedError::HasStrings expects this net error code
 340 // to also appear in the array above.
 341 const LocalizedErrorMap repost_error = {
 342   net::ERR_CACHE_MISS,
 343   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 344   IDS_HTTP_POST_WARNING_TITLE,
 345   IDS_ERRORPAGES_HTTP_POST_WARNING,
 346   IDS_ERRORPAGES_DETAILS_CACHE_MISS,
 347   SUGGEST_RELOAD,
 348 };
 349
 350 const LocalizedErrorMap http_error_options[] = {
 351   {403,
 352    IDS_ERRORPAGES_TITLE_ACCESS_DENIED,
 353    IDS_ERRORPAGES_HEADING_ACCESS_DENIED,
 354    IDS_ERRORPAGES_SUMMARY_FORBIDDEN,
 355    IDS_ERRORPAGES_DETAILS_FORBIDDEN,
 356    SUGGEST_NONE,
 357   },
 358   {410,
 359    IDS_ERRORPAGES_TITLE_NOT_FOUND,
 360    IDS_ERRORPAGES_HEADING_NOT_FOUND,
 361    IDS_ERRORPAGES_SUMMARY_GONE,
 362    IDS_ERRORPAGES_DETAILS_GONE,
 363    SUGGEST_NONE,
 364   },
 365
 366   {500,
 367    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 368    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 369    IDS_ERRORPAGES_SUMMARY_INTERNAL_SERVER_ERROR,
 370    IDS_ERRORPAGES_DETAILS_INTERNAL_SERVER_ERROR,
 371    SUGGEST_RELOAD,
 372   },
 373   {501,
 374    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 375    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 376    IDS_ERRORPAGES_SUMMARY_WEBSITE_CANNOT_HANDLE,
 377    IDS_ERRORPAGES_DETAILS_NOT_IMPLEMENTED,
 378    SUGGEST_NONE,
 379   },
 380   {502,
 381    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 382    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 383    IDS_ERRORPAGES_SUMMARY_BAD_GATEWAY,
 384    IDS_ERRORPAGES_DETAILS_BAD_GATEWAY,
 385    SUGGEST_RELOAD,
 386   },
 387   {503,
 388    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 389    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 390    IDS_ERRORPAGES_SUMMARY_SERVICE_UNAVAILABLE,
 391    IDS_ERRORPAGES_DETAILS_SERVICE_UNAVAILABLE,
 392    SUGGEST_RELOAD,
 393   },
 394   {504,
 395    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 396    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 397    IDS_ERRORPAGES_SUMMARY_GATEWAY_TIMEOUT,
 398    IDS_ERRORPAGES_DETAILS_GATEWAY_TIMEOUT,
 399    SUGGEST_RELOAD,
 400   },
 401   {505,
 402    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 403    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 404    IDS_ERRORPAGES_SUMMARY_WEBSITE_CANNOT_HANDLE,
 405    IDS_ERRORPAGES_DETAILS_HTTP_VERSION_NOT_SUPPORTED,
 406    SUGGEST_NONE,
 407   },
 408 };
 409
 410 const LocalizedErrorMap dns_probe_error_options[] = {
 411   {chrome_common_net::DNS_PROBE_POSSIBLE,
 412    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 413    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 414    IDS_ERRORPAGES_SUMMARY_DNS_PROBE_RUNNING,
 415    IDS_ERRORPAGES_DETAILS_DNS_PROBE_RUNNING,
 416    SUGGEST_RELOAD,
 417   },
 418
 419   // DNS_PROBE_NOT_RUN is not here; NetErrorHelper will restore the original
 420   // error, which might be one of several DNS-related errors.
 421
 422   {chrome_common_net::DNS_PROBE_STARTED,
 423    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 424    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 425    IDS_ERRORPAGES_SUMMARY_DNS_PROBE_RUNNING,
 426    IDS_ERRORPAGES_DETAILS_DNS_PROBE_RUNNING,
 427    // Include SUGGEST_RELOAD so the More button doesn't jump when we update.
 428    SUGGEST_RELOAD,
 429   },
 430
 431   // DNS_PROBE_FINISHED_UNKNOWN is not here; NetErrorHelper will restore the
 432   // original error, which might be one of several DNS-related errors.
 433
 434   {chrome_common_net::DNS_PROBE_FINISHED_NO_INTERNET,
 435    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 436    IDS_ERRORPAGES_HEADING_INTERNET_DISCONNECTED,
 437    IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED,
 438    IDS_ERRORPAGES_DETAILS_INTERNET_DISCONNECTED,
 439    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG,
 440   },
 441   {chrome_common_net::DNS_PROBE_FINISHED_BAD_CONFIG,
 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 | SUGGEST_DNS_CONFIG | SUGGEST_FIREWALL_CONFIG,
 447   },
 448   {chrome_common_net::DNS_PROBE_FINISHED_NXDOMAIN,
 449    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 450    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 451    IDS_ERRORPAGES_SUMMARY_NAME_NOT_RESOLVED,
 452    IDS_ERRORPAGES_DETAILS_NAME_NOT_RESOLVED,
 453    SUGGEST_RELOAD,
 454   },
 455 };
 456
 457 const LocalizedErrorMap* FindErrorMapInArray(const LocalizedErrorMap* maps,
 458                                                    size_t num_maps,
 459                                                    int error_code) {
 460   for (size_t i = 0; i < num_maps; ++i) {
 461     if (maps[i].error_code == error_code)
 462       return &maps[i];
 463   }
 464   return NULL;
 465 }
 466
 467 const LocalizedErrorMap* LookupErrorMap(const std::string& error_domain,
 468                                         int error_code, bool is_post) {
 469   if (error_domain == net::kErrorDomain) {
 470     // Display a different page in the special case of navigating through the
 471     // history to an uncached page created by a POST.
 472     if (is_post && error_code == net::ERR_CACHE_MISS)
 473       return &repost_error;
 474     return FindErrorMapInArray(net_error_options,
 475                                arraysize(net_error_options),
 476                                error_code);
 477   } else if (error_domain == LocalizedError::kHttpErrorDomain) {
 478     return FindErrorMapInArray(http_error_options,
 479                                arraysize(http_error_options),
 480                                error_code);
 481   } else if (error_domain == chrome_common_net::kDnsProbeErrorDomain) {
 482     const LocalizedErrorMap* map =
 483         FindErrorMapInArray(dns_probe_error_options,
 484                             arraysize(dns_probe_error_options),
 485                             error_code);
 486     DCHECK(map);
 487     return map;
 488   } else {
 489     NOTREACHED();
 490     return NULL;
 491   }
 492 }
 493
 494 // Returns a dictionary containing the strings for the settings menu under the
 495 // wrench, and the advanced settings button.
 496 base::DictionaryValue* GetStandardMenuItemsText() {
 497   base::DictionaryValue* standard_menu_items_text = new base::DictionaryValue();
 498   standard_menu_items_text->SetString("settingsTitle",
 499       l10n_util::GetStringUTF16(IDS_SETTINGS_TITLE));
 500   standard_menu_items_text->SetString("advancedTitle",
 501       l10n_util::GetStringUTF16(IDS_SETTINGS_SHOW_ADVANCED_SETTINGS));
 502   return standard_menu_items_text;
 503 }
 504
 505 // Gets the icon class for a given |error_domain| and |error_code|.
 506 const char* GetIconClassForError(const std::string& error_domain,
 507                                  int error_code) {
 508   if ((error_code == net::ERR_INTERNET_DISCONNECTED &&
 509        error_domain == net::kErrorDomain) ||
 510       (error_code == chrome_common_net::DNS_PROBE_FINISHED_NO_INTERNET &&
 511        error_domain == chrome_common_net::kDnsProbeErrorDomain))
 512     return "icon-offline";
 513
 514   return "icon-generic";
 515 }
 516
 517 }  // namespace
 518
 519 const char LocalizedError::kHttpErrorDomain[] = "http";
 520
 521 void LocalizedError::GetStrings(int error_code,
 522                                 const std::string& error_domain,
 523                                 const GURL& failed_url,
 524                                 bool is_post,
 525                                 bool stale_copy_in_cache,
 526                                 const std::string& locale,
 527                                 const std::string& accept_languages,
 528                                 scoped_ptr<error_page::ErrorPageParams> params,
 529                                 base::DictionaryValue* error_strings) {
 530   webui::SetLoadTimeDataDefaults(locale, error_strings);
 531
 532   // Grab the strings and settings that depend on the error type.  Init
 533   // options with default values.
 534   LocalizedErrorMap options = {
 535     0,
 536     IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 537     IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 538     IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
 539     kErrorPagesNoDetails,
 540     SUGGEST_NONE,
 541   };
 542
 543   const LocalizedErrorMap* error_map = LookupErrorMap(error_domain, error_code,
 544                                                       is_post);
 545   if (error_map)
 546     options = *error_map;
 547
 548   // If we got "access denied" but the url was a file URL, then we say it was a
 549   // file instead of just using the "not available" default message. Just adding
 550   // ERR_ACCESS_DENIED to the map isn't sufficient, since that message may be
 551   // generated by some OSs when the operation doesn't involve a file URL.
 552   if (error_domain == net::kErrorDomain &&
 553       error_code == net::ERR_ACCESS_DENIED &&
 554       failed_url.scheme() == "file") {
 555     options.title_resource_id = IDS_ERRORPAGES_TITLE_ACCESS_DENIED;
 556     options.heading_resource_id = IDS_ERRORPAGES_HEADING_FILE_ACCESS_DENIED;
 557     options.summary_resource_id = IDS_ERRORPAGES_SUMMARY_FILE_ACCESS_DENIED;
 558     options.details_resource_id = IDS_ERRORPAGES_DETAILS_FILE_ACCESS_DENIED;
 559     options.suggestions = SUGGEST_NONE;
 560   }
 561
 562   base::string16 failed_url_string(net::FormatUrl(
 563       failed_url, accept_languages, net::kFormatUrlOmitNothing,
 564       net::UnescapeRule::NORMAL, NULL, NULL, NULL));
 565   // URLs are always LTR.
 566   if (base::i18n::IsRTL())
 567     base::i18n::WrapStringWithLTRFormatting(&failed_url_string);
 568   error_strings->SetString("title",
 569       l10n_util::GetStringFUTF16(options.title_resource_id, failed_url_string));
 570   error_strings->SetString("heading",
 571       l10n_util::GetStringUTF16(options.heading_resource_id));
 572
 573   std::string icon_class = GetIconClassForError(error_domain, error_code);
 574   error_strings->SetString("iconClass", icon_class);
 575
 576   base::DictionaryValue* summary = new base::DictionaryValue;
 577
 578   // For offline show a summary message underneath the heading.
 579   if (error_code == net::ERR_INTERNET_DISCONNECTED ||
 580       error_code == chrome_common_net::DNS_PROBE_FINISHED_NO_INTERNET) {
 581     error_strings->SetString("primaryParagraph",
 582         l10n_util::GetStringUTF16(options.summary_resource_id));
 583
 584 #if defined(OS_CHROMEOS)
 585     base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 586
 587     // Check if easter egg should be disabled.
 588     if (command_line->HasSwitch(switches::kDisableDinosaurEasterEgg)) {
 589       // The prescence of this string disables the easter egg. Acts as a flag.
 590       error_strings->SetString("disabledEasterEgg",
 591           l10n_util::GetStringUTF16(IDS_ERRORPAGE_FUN_DISABLED));
 592     }
 593 #endif
 594
 595   } else {
 596     // Set summary message in the details.
 597     summary->SetString("msg",
 598         l10n_util::GetStringUTF16(options.summary_resource_id));
 599   }
 600   summary->SetString("failedUrl", failed_url_string);
 601   summary->SetString("hostName", net::IDNToUnicode(failed_url.host(),
 602                                                    accept_languages));
 603   summary->SetString("productName",
 604                      l10n_util::GetStringUTF16(IDS_PRODUCT_NAME));
 605
 606   error_strings->SetString(
 607       "details", l10n_util::GetStringUTF16(IDS_ERRORPAGE_NET_BUTTON_DETAILS));
 608   error_strings->SetString(
 609       "hideDetails", l10n_util::GetStringUTF16(
 610           IDS_ERRORPAGE_NET_BUTTON_HIDE_DETAILS));
 611   error_strings->Set("summary", summary);
 612
 613   if (options.details_resource_id != kErrorPagesNoDetails) {
 614     error_strings->SetString(
 615         "errorDetails", l10n_util::GetStringUTF16(options.details_resource_id));
 616   }
 617
 618   base::string16 error_string;
 619   if (error_domain == net::kErrorDomain) {
 620     // Non-internationalized error string, for debugging Chrome itself.
 621     error_string = base::ASCIIToUTF16(net::ErrorToShortString(error_code));
 622   } else if (error_domain == chrome_common_net::kDnsProbeErrorDomain) {
 623     std::string ascii_error_string =
 624         chrome_common_net::DnsProbeStatusToString(error_code);
 625     error_string = base::ASCIIToUTF16(ascii_error_string);
 626   } else {
 627     DCHECK_EQ(LocalizedError::kHttpErrorDomain, error_domain);
 628     error_string = base::IntToString16(error_code);
 629   }
 630   error_strings->SetString("errorCode",
 631       l10n_util::GetStringFUTF16(IDS_ERRORPAGES_ERROR_CODE, error_string));
 632
 633   // Platform specific information for diagnosing network issues on OSX and
 634   // Windows.
 635 #if defined(OS_MACOSX) || defined(OS_WIN)
 636   if (error_domain == net::kErrorDomain &&
 637       error_code == net::ERR_INTERNET_DISCONNECTED) {
 638     int platform_string_id =
 639         IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM;
 640 #if defined(OS_WIN)
 641     // Different versions of Windows have different instructions.
 642     base::win::Version windows_version = base::win::GetVersion();
 643     if (windows_version < base::win::VERSION_VISTA) {
 644       // XP, XP64, and Server 2003.
 645       platform_string_id =
 646           IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM_XP;
 647     } else if (windows_version == base::win::VERSION_VISTA) {
 648       // Vista
 649       platform_string_id =
 650           IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM_VISTA;
 651     }
 652 #endif  // defined(OS_WIN)
 653     // Platform dependent portion of the summary section.
 654     summary->SetString("msg",
 655         l10n_util::GetStringFUTF16(
 656             IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_INSTRUCTIONS_TEMPLATE,
 657             l10n_util::GetStringUTF16(platform_string_id)));
 658   }
 659 #endif  // defined(OS_MACOSX) || defined(OS_WIN)
 660
 661   // If no parameters were provided, use the defaults.
 662   if (!params) {
 663     params.reset(new error_page::ErrorPageParams());
 664     params->suggest_reload = !!(options.suggestions & SUGGEST_RELOAD);
 665   }
 666
 667   base::ListValue* suggestions = NULL;
 668   bool use_default_suggestions = true;
 669   if (!params->override_suggestions) {
 670     suggestions = new base::ListValue();
 671   } else {
 672     suggestions = params->override_suggestions.release();
 673     use_default_suggestions = false;
 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