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/net/net_error_info.h"
  15 #include "extensions/common/constants.h"
  16 #include "extensions/common/extension_icon_set.h"
  17 #include "extensions/common/manifest_handlers/icons_handler.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   {net::ERR_BLOCKED_ENROLLMENT_CHECK_PENDING,
 298    IDS_ERRORPAGES_TITLE_BLOCKED,
 299    IDS_ERRORPAGES_HEADING_BLOCKED_BY_ADMINISTRATOR,
 300    IDS_ERRORPAGES_SUMMARY_BLOCKED_ENROLLMENT_CHECK_PENDING,
 301    IDS_ERRORPAGES_DETAILS_BLOCKED_ENROLLMENT_CHECK_PENDING,
 302    SUGGEST_CHECK_CONNECTION,
 303   },
 304 };
 305
 306 // Special error page to be used in the case of navigating back to a page
 307 // generated by a POST.  LocalizedError::HasStrings expects this net error code
 308 // to also appear in the array above.
 309 const LocalizedErrorMap repost_error = {
 310   net::ERR_CACHE_MISS,
 311   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 312   IDS_HTTP_POST_WARNING_TITLE,
 313   IDS_ERRORPAGES_HTTP_POST_WARNING,
 314   IDS_ERRORPAGES_DETAILS_CACHE_MISS,
 315   SUGGEST_RELOAD,
 316 };
 317
 318 const LocalizedErrorMap http_error_options[] = {
 319   {403,
 320    IDS_ERRORPAGES_TITLE_ACCESS_DENIED,
 321    IDS_ERRORPAGES_HEADING_ACCESS_DENIED,
 322    IDS_ERRORPAGES_SUMMARY_FORBIDDEN,
 323    IDS_ERRORPAGES_DETAILS_FORBIDDEN,
 324    SUGGEST_NONE,
 325   },
 326   {410,
 327    IDS_ERRORPAGES_TITLE_NOT_FOUND,
 328    IDS_ERRORPAGES_HEADING_NOT_FOUND,
 329    IDS_ERRORPAGES_SUMMARY_GONE,
 330    IDS_ERRORPAGES_DETAILS_GONE,
 331    SUGGEST_NONE,
 332   },
 333
 334   {500,
 335    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 336    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 337    IDS_ERRORPAGES_SUMMARY_INTERNAL_SERVER_ERROR,
 338    IDS_ERRORPAGES_DETAILS_INTERNAL_SERVER_ERROR,
 339    SUGGEST_RELOAD,
 340   },
 341   {501,
 342    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 343    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 344    IDS_ERRORPAGES_SUMMARY_WEBSITE_CANNOT_HANDLE,
 345    IDS_ERRORPAGES_DETAILS_NOT_IMPLEMENTED,
 346    SUGGEST_NONE,
 347   },
 348   {502,
 349    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 350    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 351    IDS_ERRORPAGES_SUMMARY_BAD_GATEWAY,
 352    IDS_ERRORPAGES_DETAILS_BAD_GATEWAY,
 353    SUGGEST_RELOAD,
 354   },
 355   {503,
 356    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 357    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 358    IDS_ERRORPAGES_SUMMARY_SERVICE_UNAVAILABLE,
 359    IDS_ERRORPAGES_DETAILS_SERVICE_UNAVAILABLE,
 360    SUGGEST_RELOAD,
 361   },
 362   {504,
 363    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 364    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 365    IDS_ERRORPAGES_SUMMARY_GATEWAY_TIMEOUT,
 366    IDS_ERRORPAGES_DETAILS_GATEWAY_TIMEOUT,
 367    SUGGEST_RELOAD,
 368   },
 369   {505,
 370    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 371    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 372    IDS_ERRORPAGES_SUMMARY_WEBSITE_CANNOT_HANDLE,
 373    IDS_ERRORPAGES_DETAILS_HTTP_VERSION_NOT_SUPPORTED,
 374    SUGGEST_NONE,
 375   },
 376 };
 377
 378 const LocalizedErrorMap dns_probe_error_options[] = {
 379   {chrome_common_net::DNS_PROBE_POSSIBLE,
 380    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 381    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 382    IDS_ERRORPAGES_SUMMARY_DNS_PROBE_RUNNING,
 383    IDS_ERRORPAGES_DETAILS_DNS_PROBE_RUNNING,
 384    SUGGEST_RELOAD,
 385   },
 386
 387   // DNS_PROBE_NOT_RUN is not here; NetErrorHelper will restore the original
 388   // error, which might be one of several DNS-related errors.
 389
 390   {chrome_common_net::DNS_PROBE_STARTED,
 391    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 392    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 393    IDS_ERRORPAGES_SUMMARY_DNS_PROBE_RUNNING,
 394    IDS_ERRORPAGES_DETAILS_DNS_PROBE_RUNNING,
 395    // Include SUGGEST_RELOAD so the More button doesn't jump when we update.
 396    SUGGEST_RELOAD,
 397   },
 398
 399   // DNS_PROBE_FINISHED_UNKNOWN is not here; NetErrorHelper will restore the
 400   // original error, which might be one of several DNS-related errors.
 401
 402   {chrome_common_net::DNS_PROBE_FINISHED_NO_INTERNET,
 403    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 404    IDS_ERRORPAGES_HEADING_INTERNET_DISCONNECTED,
 405    IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED,
 406    IDS_ERRORPAGES_DETAILS_INTERNET_DISCONNECTED,
 407    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG,
 408   },
 409   {chrome_common_net::DNS_PROBE_FINISHED_BAD_CONFIG,
 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 | SUGGEST_DNS_CONFIG | SUGGEST_FIREWALL_CONFIG,
 415   },
 416   {chrome_common_net::DNS_PROBE_FINISHED_NXDOMAIN,
 417    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 418    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 419    IDS_ERRORPAGES_SUMMARY_NAME_NOT_RESOLVED,
 420    IDS_ERRORPAGES_DETAILS_NAME_NOT_RESOLVED,
 421    SUGGEST_RELOAD,
 422   },
 423 };
 424
 425 const LocalizedErrorMap* FindErrorMapInArray(const LocalizedErrorMap* maps,
 426                                                    size_t num_maps,
 427                                                    int error_code) {
 428   for (size_t i = 0; i < num_maps; ++i) {
 429     if (maps[i].error_code == error_code)
 430       return &maps[i];
 431   }
 432   return NULL;
 433 }
 434
 435 const LocalizedErrorMap* LookupErrorMap(const std::string& error_domain,
 436                                         int error_code, bool is_post) {
 437   if (error_domain == net::kErrorDomain) {
 438     // Display a different page in the special case of navigating through the
 439     // history to an uncached page created by a POST.
 440     if (is_post && error_code == net::ERR_CACHE_MISS)
 441       return &repost_error;
 442     return FindErrorMapInArray(net_error_options,
 443                                arraysize(net_error_options),
 444                                error_code);
 445   } else if (error_domain == LocalizedError::kHttpErrorDomain) {
 446     return FindErrorMapInArray(http_error_options,
 447                                arraysize(http_error_options),
 448                                error_code);
 449   } else if (error_domain == chrome_common_net::kDnsProbeErrorDomain) {
 450     const LocalizedErrorMap* map =
 451         FindErrorMapInArray(dns_probe_error_options,
 452                             arraysize(dns_probe_error_options),
 453                             error_code);
 454     DCHECK(map);
 455     return map;
 456   } else {
 457     NOTREACHED();
 458     return NULL;
 459   }
 460 }
 461
 462 bool LocaleIsRTL() {
 463   return base::i18n::IsRTL();
 464 }
 465
 466 // Returns a dictionary containing the strings for the settings menu under the
 467 // wrench, and the advanced settings button.
 468 base::DictionaryValue* GetStandardMenuItemsText() {
 469   base::DictionaryValue* standard_menu_items_text = new base::DictionaryValue();
 470   standard_menu_items_text->SetString("settingsTitle",
 471       l10n_util::GetStringUTF16(IDS_SETTINGS_TITLE));
 472   standard_menu_items_text->SetString("advancedTitle",
 473       l10n_util::GetStringUTF16(IDS_SETTINGS_SHOW_ADVANCED_SETTINGS));
 474   return standard_menu_items_text;
 475 }
 476
 477 // Gets the icon class for a given |error_domain| and |error_code|.
 478 const char* GetIconClassForError(const std::string& error_domain,
 479                                  int error_code) {
 480   if ((error_code == net::ERR_INTERNET_DISCONNECTED &&
 481        error_domain == net::kErrorDomain) ||
 482       (error_code == chrome_common_net::DNS_PROBE_FINISHED_NO_INTERNET &&
 483        error_domain == chrome_common_net::kDnsProbeErrorDomain))
 484     return "icon-offline";
 485
 486   return "icon-generic";
 487 }
 488
 489 }  // namespace
 490
 491 const char LocalizedError::kHttpErrorDomain[] = "http";
 492
 493 LocalizedError::ErrorPageParams::ErrorPageParams() : suggest_reload(false) {
 494 }
 495
 496 LocalizedError::ErrorPageParams::~ErrorPageParams() {
 497 }
 498
 499 void LocalizedError::GetStrings(int error_code,
 500                                 const std::string& error_domain,
 501                                 const GURL& failed_url,
 502                                 bool is_post,
 503                                 bool show_stale_load_button,
 504                                 const std::string& locale,
 505                                 const std::string& accept_languages,
 506                                 scoped_ptr<ErrorPageParams> params,
 507                                 base::DictionaryValue* error_strings) {
 508   bool rtl = LocaleIsRTL();
 509   error_strings->SetString("textdirection", rtl ? "rtl" : "ltr");
 510
 511   // Grab the strings and settings that depend on the error type.  Init
 512   // options with default values.
 513   LocalizedErrorMap options = {
 514     0,
 515     IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 516     IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 517     IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
 518     kErrorPagesNoDetails,
 519     SUGGEST_NONE,
 520   };
 521
 522   const LocalizedErrorMap* error_map = LookupErrorMap(error_domain, error_code,
 523                                                       is_post);
 524   if (error_map)
 525     options = *error_map;
 526
 527   // If we got "access denied" but the url was a file URL, then we say it was a
 528   // file instead of just using the "not available" default message. Just adding
 529   // ERR_ACCESS_DENIED to the map isn't sufficient, since that message may be
 530   // generated by some OSs when the operation doesn't involve a file URL.
 531   if (error_domain == net::kErrorDomain &&
 532       error_code == net::ERR_ACCESS_DENIED &&
 533       failed_url.scheme() == "file") {
 534     options.title_resource_id = IDS_ERRORPAGES_TITLE_ACCESS_DENIED;
 535     options.heading_resource_id = IDS_ERRORPAGES_HEADING_FILE_ACCESS_DENIED;
 536     options.summary_resource_id = IDS_ERRORPAGES_SUMMARY_FILE_ACCESS_DENIED;
 537     options.details_resource_id = IDS_ERRORPAGES_DETAILS_FILE_ACCESS_DENIED;
 538     options.suggestions = SUGGEST_NONE;
 539   }
 540
 541   base::string16 failed_url_string(net::FormatUrl(
 542       failed_url, accept_languages, net::kFormatUrlOmitNothing,
 543       net::UnescapeRule::NORMAL, NULL, NULL, NULL));
 544   // URLs are always LTR.
 545   if (rtl)
 546     base::i18n::WrapStringWithLTRFormatting(&failed_url_string);
 547   error_strings->SetString("title",
 548       l10n_util::GetStringFUTF16(options.title_resource_id, failed_url_string));
 549   error_strings->SetString("heading",
 550       l10n_util::GetStringUTF16(options.heading_resource_id));
 551
 552   std::string icon_class = GetIconClassForError(error_domain, error_code);
 553   error_strings->SetString("iconClass", icon_class);
 554
 555   base::DictionaryValue* summary = new base::DictionaryValue;
 556   summary->SetString("msg",
 557       l10n_util::GetStringUTF16(options.summary_resource_id));
 558   summary->SetString("failedUrl", failed_url_string);
 559   summary->SetString("hostName", net::IDNToUnicode(failed_url.host(),
 560                                                    accept_languages));
 561   summary->SetString("productName",
 562                      l10n_util::GetStringUTF16(IDS_PRODUCT_NAME));
 563
 564   error_strings->SetString(
 565       "more", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_MORE));
 566   error_strings->SetString(
 567       "less", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_LESS));
 568   error_strings->Set("summary", summary);
 569
 570   if (options.details_resource_id != kErrorPagesNoDetails) {
 571     error_strings->SetString(
 572         "errorDetails", l10n_util::GetStringUTF16(options.details_resource_id));
 573   }
 574
 575   base::string16 error_string;
 576   if (error_domain == net::kErrorDomain) {
 577     // Non-internationalized error string, for debugging Chrome itself.
 578     std::string ascii_error_string = net::ErrorToString(error_code);
 579     // Remove the leading "net::" from the returned string.
 580     base::RemoveChars(ascii_error_string, "net:", &ascii_error_string);
 581     error_string = base::ASCIIToUTF16(ascii_error_string);
 582   } else if (error_domain == chrome_common_net::kDnsProbeErrorDomain) {
 583     std::string ascii_error_string =
 584         chrome_common_net::DnsProbeStatusToString(error_code);
 585     error_string = base::ASCIIToUTF16(ascii_error_string);
 586   } else {
 587     DCHECK_EQ(LocalizedError::kHttpErrorDomain, error_domain);
 588     error_string = base::IntToString16(error_code);
 589   }
 590   error_strings->SetString("errorCode",
 591       l10n_util::GetStringFUTF16(IDS_ERRORPAGES_ERROR_CODE, error_string));
 592
 593   // Platform specific information for diagnosing network issues on OSX and
 594   // Windows.
 595 #if defined(OS_MACOSX) || defined(OS_WIN)
 596   if (error_domain == net::kErrorDomain &&
 597       error_code == net::ERR_INTERNET_DISCONNECTED) {
 598     int platform_string_id =
 599         IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM;
 600 #if defined(OS_WIN)
 601     // Different versions of Windows have different instructions.
 602     base::win::Version windows_version = base::win::GetVersion();
 603     if (windows_version < base::win::VERSION_VISTA) {
 604       // XP, XP64, and Server 2003.
 605       platform_string_id =
 606           IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM_XP;
 607     } else if (windows_version == base::win::VERSION_VISTA) {
 608       // Vista
 609       platform_string_id =
 610           IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM_VISTA;
 611     }
 612 #endif  // defined(OS_WIN)
 613     // Lead with the general error description, and suffix with the platform
 614     // dependent portion of the summary section.
 615     summary->SetString("msg",
 616         l10n_util::GetStringFUTF16(
 617             IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_INSTRUCTIONS_TEMPLATE,
 618             l10n_util::GetStringUTF16(options.summary_resource_id),
 619             l10n_util::GetStringUTF16(platform_string_id)));
 620   }
 621 #endif  // defined(OS_MACOSX) || defined(OS_WIN)
 622
 623   // If no parameters were provided, use the defaults.
 624   if (!params) {
 625     params.reset(new ErrorPageParams());
 626     params->suggest_reload = !!(options.suggestions & SUGGEST_RELOAD);
 627   }
 628
 629   base::ListValue* suggestions = NULL;
 630   bool use_default_suggestions = true;
 631   if (!params->override_suggestions) {
 632     suggestions = new base::ListValue();
 633   } else {
 634     suggestions = params->override_suggestions.release();
 635     use_default_suggestions = false;
 636   }
 637
 638   error_strings->Set("suggestions", suggestions);
 639
 640   if (params->search_url.is_valid()) {
 641     error_strings->SetString("searchHeader",
 642         l10n_util::GetStringUTF16(IDS_ERRORPAGES_SUGGESTION_GOOGLE_SEARCH));
 643     error_strings->SetString("searchUrl", params->search_url.spec());
 644     error_strings->SetString("searchTerms", params->search_terms);
 645   }
 646
 647   // Add the reload suggestion, if needed.
 648   if (params->suggest_reload) {
 649     if (!is_post) {
 650       base::DictionaryValue* reload_button = new base::DictionaryValue;
 651       reload_button->SetString(
 652           "msg", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_RELOAD));
 653       reload_button->SetString("reloadUrl", failed_url.spec());
 654       error_strings->Set("reloadButton", reload_button);
 655     } else {
 656       // If the page was created by a post, it can't be reloaded in the same
 657       // way, so just add a suggestion instead.
 658       // TODO(mmenke):  Make the reload button bring up the repost confirmation
 659       //                dialog for pages resulting from posts.
 660       base::DictionaryValue* suggest_reload_repost = new base::DictionaryValue;
 661       suggest_reload_repost->SetString("header",
 662           l10n_util::GetStringUTF16(
 663               IDS_ERRORPAGES_SUGGESTION_RELOAD_REPOST_HEADER));
 664       suggest_reload_repost->SetString("body",
 665           l10n_util::GetStringUTF16(
 666               IDS_ERRORPAGES_SUGGESTION_RELOAD_REPOST_BODY));
 667       // Add at the front, so it appears before other suggestions, in the case
 668       // suggestions are being overridden by |params|.
 669       suggestions->Insert(0, suggest_reload_repost);
 670     }
 671   }
 672
 673   // If not using the default suggestions, nothing else to do.
 674   if (!use_default_suggestions)
 675     return;
 676
 677   if (show_stale_load_button) {
 678     base::DictionaryValue* stale_load_button = new base::DictionaryValue;
 679     stale_load_button->SetString(
 680         "msg", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_LOAD_STALE));
 681     stale_load_button->SetString(
 682         "title",
 683         l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_LOAD_STALE_HELP));
 684     error_strings->Set("staleLoadButton", stale_load_button);
 685   }
 686
 687 #if defined(OS_CHROMEOS)
 688   error_strings->SetString(
 689       "diagnose", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_DIAGNOSE));
 690 #endif  // defined(OS_CHROMEOS)
 691
 692   if (options.suggestions & SUGGEST_CHECK_CONNECTION) {
 693     base::DictionaryValue* suggest_check_connection = new base::DictionaryValue;
 694     suggest_check_connection->SetString("header",
 695         l10n_util::GetStringUTF16(
 696             IDS_ERRORPAGES_SUGGESTION_CHECK_CONNECTION_HEADER));
 697     suggest_check_connection->SetString("body",
 698         l10n_util::GetStringUTF16(
 699             IDS_ERRORPAGES_SUGGESTION_CHECK_CONNECTION_BODY));
 700     suggestions->Append(suggest_check_connection);
 701   }
 702
 703   if (options.suggestions & SUGGEST_DNS_CONFIG) {
 704     base::DictionaryValue* suggest_dns_config = new base::DictionaryValue;
 705     suggest_dns_config->SetString("header",
 706         l10n_util::GetStringUTF16(
 707             IDS_ERRORPAGES_SUGGESTION_DNS_CONFIG_HEADER));
 708     suggest_dns_config->SetString("body",
 709         l10n_util::GetStringUTF16(
 710             IDS_ERRORPAGES_SUGGESTION_DNS_CONFIG_BODY));
 711     suggestions->Append(suggest_dns_config);
 712
 713     base::DictionaryValue* suggest_network_prediction =
 714         GetStandardMenuItemsText();
 715     suggest_network_prediction->SetString("header",
 716         l10n_util::GetStringUTF16(
 717             IDS_ERRORPAGES_SUGGESTION_NETWORK_PREDICTION_HEADER));
 718     suggest_network_prediction->SetString("body",
 719         l10n_util::GetStringUTF16(
 720             IDS_ERRORPAGES_SUGGESTION_NETWORK_PREDICTION_BODY));
 721     suggest_network_prediction->SetString(
 722         "noNetworkPredictionTitle",
 723         l10n_util::GetStringUTF16(
 724             IDS_NETWORK_PREDICTION_ENABLED_DESCRIPTION));
 725     suggestions->Append(suggest_network_prediction);
 726   }
 727
 728   if (options.suggestions & SUGGEST_FIREWALL_CONFIG) {
 729     base::DictionaryValue* suggest_firewall_config = new base::DictionaryValue;
 730     suggest_firewall_config->SetString("header",
 731         l10n_util::GetStringUTF16(
 732             IDS_ERRORPAGES_SUGGESTION_FIREWALL_CONFIG_HEADER));
 733     suggest_firewall_config->SetString("body",
 734         l10n_util::GetStringUTF16(
 735             IDS_ERRORPAGES_SUGGESTION_FIREWALL_CONFIG_BODY));
 736     suggestions->Append(suggest_firewall_config);
 737   }
 738
 739   if (options.suggestions & SUGGEST_PROXY_CONFIG) {
 740     base::DictionaryValue* suggest_proxy_config = GetStandardMenuItemsText();
 741     suggest_proxy_config->SetString("header",
 742         l10n_util::GetStringUTF16(
 743             IDS_ERRORPAGES_SUGGESTION_PROXY_CONFIG_HEADER));
 744     suggest_proxy_config->SetString("body",
 745         l10n_util::GetStringFUTF16(IDS_ERRORPAGES_SUGGESTION_PROXY_CONFIG_BODY,
 746             l10n_util::GetStringUTF16(
 747                 IDS_ERRORPAGES_SUGGESTION_PROXY_DISABLE_PLATFORM)));
 748     suggest_proxy_config->SetString("proxyTitle",
 749         l10n_util::GetStringUTF16(IDS_OPTIONS_PROXIES_CONFIGURE_BUTTON));
 750
 751     suggestions->Append(suggest_proxy_config);
 752   }
 753
 754   if (options.suggestions & SUGGEST_DISABLE_EXTENSION) {
 755     base::DictionaryValue* suggest_disable_extension =
 756         new base::DictionaryValue;
 757     // There's only a header for this suggestion.
 758     suggest_disable_extension->SetString("header",
 759         l10n_util::GetStringUTF16(
 760             IDS_ERRORPAGES_SUGGESTION_DISABLE_EXTENSION_HEADER));
 761     suggestions->Append(suggest_disable_extension);
 762   }
 763
 764   if (options.suggestions & SUGGEST_VIEW_POLICIES) {
 765     base::DictionaryValue* suggest_view_policies = new base::DictionaryValue;
 766     suggest_view_policies->SetString(
 767         "header",
 768         l10n_util::GetStringUTF16(
 769             IDS_ERRORPAGES_SUGGESTION_VIEW_POLICIES_HEADER));
 770     suggest_view_policies->SetString(
 771         "body",
 772         l10n_util::GetStringUTF16(
 773             IDS_ERRORPAGES_SUGGESTION_VIEW_POLICIES_BODY));
 774     suggestions->Append(suggest_view_policies);
 775   }
 776
 777   if (options.suggestions & SUGGEST_CONTACT_ADMINISTRATOR) {
 778     base::DictionaryValue* suggest_contant_administrator =
 779         new base::DictionaryValue;
 780     suggest_contant_administrator->SetString(
 781         "body",
 782         l10n_util::GetStringUTF16(
 783             IDS_ERRORPAGES_SUGGESTION_CONTACT_ADMINISTRATOR_BODY));
 784     suggestions->Append(suggest_contant_administrator);
 785   }
 786
 787   if (options.suggestions & SUGGEST_LEARNMORE) {
 788     GURL learn_more_url;
 789     switch (options.error_code) {
 790       case net::ERR_TOO_MANY_REDIRECTS:
 791         learn_more_url = GURL(kRedirectLoopLearnMoreUrl);
 792         break;
 793       case net::ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY:
 794         learn_more_url = GURL(kWeakDHKeyLearnMoreUrl);
 795         break;
 796       default:
 797         break;
 798     }
 799
 800     if (learn_more_url.is_valid()) {
 801       // Add the language parameter to the URL.
 802       std::string query = learn_more_url.query() + "&hl=" + locale;
 803       GURL::Replacements repl;
 804       repl.SetQueryStr(query);
 805       learn_more_url = learn_more_url.ReplaceComponents(repl);
 806
 807       base::DictionaryValue* suggest_learn_more = new base::DictionaryValue;
 808       // There's only a body for this suggestion.
 809       suggest_learn_more->SetString("body",
 810           l10n_util::GetStringUTF16(IDS_ERRORPAGES_SUGGESTION_LEARNMORE_BODY));
 811       suggest_learn_more->SetString("learnMoreUrl", learn_more_url.spec());
 812       suggestions->Append(suggest_learn_more);
 813     }
 814   }
 815 }
 816
 817 base::string16 LocalizedError::GetErrorDetails(const blink::WebURLError& error,
 818                                                bool is_post) {
 819   const LocalizedErrorMap* error_map =
 820       LookupErrorMap(error.domain.utf8(), error.reason, is_post);
 821   if (error_map)
 822     return l10n_util::GetStringUTF16(error_map->details_resource_id);
 823   else
 824     return l10n_util::GetStringUTF16(IDS_ERRORPAGES_DETAILS_UNKNOWN);
 825 }
 826
 827 bool LocalizedError::HasStrings(const std::string& error_domain,
 828                                 int error_code) {
 829   // Whether or not the there are strings for an error does not depend on
 830   // whether or not the page was be generated by a POST, so just claim it was
 831   // not.
 832   return LookupErrorMap(error_domain, error_code, /*is_post=*/false) != NULL;
 833 }
 834
 835 void LocalizedError::GetAppErrorStrings(
 836     const GURL& display_url,
 837     const extensions::Extension* app,
 838     base::DictionaryValue* error_strings) {
 839   DCHECK(app);
 840
 841   bool rtl = LocaleIsRTL();
 842   error_strings->SetString("textdirection", rtl ? "rtl" : "ltr");
 843
 844   base::string16 failed_url(base::ASCIIToUTF16(display_url.spec()));
 845   // URLs are always LTR.
 846   if (rtl)
 847     base::i18n::WrapStringWithLTRFormatting(&failed_url);
 848   error_strings->SetString(
 849      "url", l10n_util::GetStringFUTF16(IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 850                                        failed_url.c_str()));
 851
 852   error_strings->SetString("title", app->name());
 853   error_strings->SetString(
 854       "icon",
 855       extensions::IconsInfo::GetIconURL(
 856           app,
 857           extension_misc::EXTENSION_ICON_GIGANTOR,
 858           ExtensionIconSet::MATCH_SMALLER).spec());
 859   error_strings->SetString("name", app->name());
 860   error_strings->SetString(
 861       "msg",
 862       l10n_util::GetStringUTF16(IDS_ERRORPAGES_APP_WARNING));
 863
 864 #if defined(OS_CHROMEOS)
 865   GURL learn_more_url(kAppWarningLearnMoreUrl);
 866   base::DictionaryValue* suggest_learn_more = new base::DictionaryValue();
 867   suggest_learn_more->SetString("msg",
 868                                 l10n_util::GetStringUTF16(
 869                                     IDS_ERRORPAGES_SUGGESTION_LEARNMORE_BODY));
 870   suggest_learn_more->SetString("learnMoreUrl", learn_more_url.spec());
 871   error_strings->Set("suggestionsLearnMore", suggest_learn_more);
 872 #endif  // defined(OS_CHROMEOS)
 873 }