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