localized_error.cc revision a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7 
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/extension_set.h"
17#include "chrome/common/extensions/manifest_handlers/icons_handler.h"
18#include "chrome/common/net/net_error_info.h"
19#include "grit/chromium_strings.h"
20#include "grit/generated_resources.h"
21#include "net/base/escape.h"
22#include "net/base/net_errors.h"
23#include "net/base/net_util.h"
24#include "third_party/WebKit/public/platform/WebURLError.h"
25#include "ui/base/l10n/l10n_util.h"
26#include "ui/base/webui/web_ui_util.h"
27#include "url/gurl.h"
28
29#if defined(OS_WIN)
30#include "base/win/windows_version.h"
31#endif
32
33using blink::WebURLError;
34
35// Some error pages have no details.
36const unsigned int kErrorPagesNoDetails = 0;
37
38namespace {
39
40static const char kRedirectLoopLearnMoreUrl[] =
41    "https://www.google.com/support/chrome/bin/answer.py?answer=95626";
42static const char kWeakDHKeyLearnMoreUrl[] =
43    "http://sites.google.com/a/chromium.org/dev/"
44    "err_ssl_weak_server_ephemeral_dh_key";
45#if defined(OS_CHROMEOS)
46static const char kAppWarningLearnMoreUrl[] =
47    "chrome-extension://honijodknafkokifofgiaalefdiedpko/main.html"
48    "?answer=1721911";
49#endif  // defined(OS_CHROMEOS)
50
51enum NAV_SUGGESTIONS {
52  SUGGEST_NONE                  = 0,
53  SUGGEST_RELOAD                = 1 << 0,
54  SUGGEST_CHECK_CONNECTION      = 1 << 1,
55  SUGGEST_DNS_CONFIG            = 1 << 2,
56  SUGGEST_FIREWALL_CONFIG       = 1 << 3,
57  SUGGEST_PROXY_CONFIG          = 1 << 4,
58  SUGGEST_DISABLE_EXTENSION     = 1 << 5,
59  SUGGEST_LEARNMORE             = 1 << 6,
60  SUGGEST_VIEW_POLICIES         = 1 << 7,
61  SUGGEST_CONTACT_ADMINISTRATOR = 1 << 8,
62};
63
64struct LocalizedErrorMap {
65  int error_code;
66  unsigned int title_resource_id;
67  unsigned int heading_resource_id;
68  // Detailed summary used when the error is in the main frame.
69  unsigned int summary_resource_id;
70  // Short one sentence description shown on mouse over when the error is in
71  // a frame.
72  unsigned int details_resource_id;
73  int suggestions;  // Bitmap of SUGGEST_* values.
74};
75
76const LocalizedErrorMap net_error_options[] = {
77  {net::ERR_TIMED_OUT,
78   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
79   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
80   IDS_ERRORPAGES_SUMMARY_TIMED_OUT,
81   IDS_ERRORPAGES_DETAILS_TIMED_OUT,
82   SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
83       SUGGEST_PROXY_CONFIG,
84  },
85  {net::ERR_CONNECTION_TIMED_OUT,
86   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
87   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
88   IDS_ERRORPAGES_SUMMARY_TIMED_OUT,
89   IDS_ERRORPAGES_DETAILS_TIMED_OUT,
90   SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
91       SUGGEST_PROXY_CONFIG,
92  },
93  {net::ERR_CONNECTION_CLOSED,
94   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
95   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
96   IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
97   IDS_ERRORPAGES_DETAILS_CONNECTION_CLOSED,
98   SUGGEST_RELOAD,
99  },
100  {net::ERR_CONNECTION_RESET,
101   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
102   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
103   IDS_ERRORPAGES_SUMMARY_CONNECTION_RESET,
104   IDS_ERRORPAGES_DETAILS_CONNECTION_RESET,
105   SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
106       SUGGEST_PROXY_CONFIG,
107  },
108  {net::ERR_CONNECTION_REFUSED,
109   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
110   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
111   IDS_ERRORPAGES_SUMMARY_CONNECTION_REFUSED,
112   IDS_ERRORPAGES_DETAILS_CONNECTION_REFUSED,
113   SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
114       SUGGEST_PROXY_CONFIG,
115  },
116  {net::ERR_CONNECTION_FAILED,
117   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
118   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
119   IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
120   IDS_ERRORPAGES_DETAILS_CONNECTION_FAILED,
121   SUGGEST_RELOAD,
122  },
123  {net::ERR_NAME_NOT_RESOLVED,
124   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
125   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
126   IDS_ERRORPAGES_SUMMARY_NAME_NOT_RESOLVED,
127   IDS_ERRORPAGES_DETAILS_NAME_NOT_RESOLVED,
128   SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_DNS_CONFIG |
129       SUGGEST_FIREWALL_CONFIG | SUGGEST_PROXY_CONFIG,
130  },
131  {net::ERR_ADDRESS_UNREACHABLE,
132   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
133   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
134   IDS_ERRORPAGES_SUMMARY_ADDRESS_UNREACHABLE,
135   IDS_ERRORPAGES_DETAILS_ADDRESS_UNREACHABLE,
136   SUGGEST_RELOAD | SUGGEST_FIREWALL_CONFIG | SUGGEST_PROXY_CONFIG,
137  },
138  {net::ERR_NETWORK_ACCESS_DENIED,
139   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
140   IDS_ERRORPAGES_HEADING_NETWORK_ACCESS_DENIED,
141   IDS_ERRORPAGES_SUMMARY_NETWORK_ACCESS_DENIED,
142   IDS_ERRORPAGES_DETAILS_NETWORK_ACCESS_DENIED,
143   SUGGEST_FIREWALL_CONFIG,
144  },
145  {net::ERR_PROXY_CONNECTION_FAILED,
146   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
147   IDS_ERRORPAGES_HEADING_PROXY_CONNECTION_FAILED,
148   IDS_ERRORPAGES_SUMMARY_PROXY_CONNECTION_FAILED,
149   IDS_ERRORPAGES_DETAILS_PROXY_CONNECTION_FAILED,
150   SUGGEST_PROXY_CONFIG,
151  },
152  {net::ERR_INTERNET_DISCONNECTED,
153   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
154   IDS_ERRORPAGES_HEADING_INTERNET_DISCONNECTED,
155   IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED,
156   IDS_ERRORPAGES_DETAILS_INTERNET_DISCONNECTED,
157   SUGGEST_NONE,
158  },
159  {net::ERR_FILE_NOT_FOUND,
160   IDS_ERRORPAGES_TITLE_NOT_FOUND,
161   IDS_ERRORPAGES_HEADING_NOT_FOUND,
162   IDS_ERRORPAGES_SUMMARY_NOT_FOUND,
163   IDS_ERRORPAGES_DETAILS_FILE_NOT_FOUND,
164   SUGGEST_NONE,
165  },
166  {net::ERR_CACHE_MISS,
167   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
168   IDS_ERRORPAGES_HEADING_CACHE_MISS,
169   IDS_ERRORPAGES_SUMMARY_CACHE_MISS,
170   IDS_ERRORPAGES_DETAILS_CACHE_MISS,
171   SUGGEST_RELOAD,
172  },
173  {net::ERR_CACHE_READ_FAILURE,
174   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
175   IDS_ERRORPAGES_HEADING_CACHE_READ_FAILURE,
176   IDS_ERRORPAGES_SUMMARY_CACHE_READ_FAILURE,
177   IDS_ERRORPAGES_DETAILS_CACHE_READ_FAILURE,
178   SUGGEST_RELOAD,
179  },
180  {net::ERR_NETWORK_IO_SUSPENDED,
181   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
182   IDS_ERRORPAGES_HEADING_NETWORK_IO_SUSPENDED,
183   IDS_ERRORPAGES_SUMMARY_NETWORK_IO_SUSPENDED,
184   IDS_ERRORPAGES_DETAILS_NETWORK_IO_SUSPENDED,
185   SUGGEST_RELOAD,
186  },
187  {net::ERR_TOO_MANY_REDIRECTS,
188   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
189   IDS_ERRORPAGES_HEADING_TOO_MANY_REDIRECTS,
190   IDS_ERRORPAGES_SUMMARY_TOO_MANY_REDIRECTS,
191   IDS_ERRORPAGES_DETAILS_TOO_MANY_REDIRECTS,
192   SUGGEST_RELOAD | SUGGEST_LEARNMORE,
193  },
194  {net::ERR_EMPTY_RESPONSE,
195   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
196   IDS_ERRORPAGES_HEADING_EMPTY_RESPONSE,
197   IDS_ERRORPAGES_SUMMARY_EMPTY_RESPONSE,
198   IDS_ERRORPAGES_DETAILS_EMPTY_RESPONSE,
199   SUGGEST_RELOAD,
200  },
201  {net::ERR_RESPONSE_HEADERS_MULTIPLE_CONTENT_LENGTH,
202   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
203   IDS_ERRORPAGES_HEADING_DUPLICATE_HEADERS,
204   IDS_ERRORPAGES_SUMMARY_DUPLICATE_HEADERS,
205   IDS_ERRORPAGES_DETAILS_RESPONSE_HEADERS_MULTIPLE_CONTENT_LENGTH,
206   SUGGEST_NONE,
207  },
208  {net::ERR_RESPONSE_HEADERS_MULTIPLE_CONTENT_DISPOSITION,
209   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
210   IDS_ERRORPAGES_HEADING_DUPLICATE_HEADERS,
211   IDS_ERRORPAGES_SUMMARY_DUPLICATE_HEADERS,
212   IDS_ERRORPAGES_DETAILS_RESPONSE_HEADERS_MULTIPLE_CONTENT_DISPOSITION,
213   SUGGEST_NONE,
214  },
215  {net::ERR_RESPONSE_HEADERS_MULTIPLE_LOCATION,
216   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
217   IDS_ERRORPAGES_HEADING_DUPLICATE_HEADERS,
218   IDS_ERRORPAGES_SUMMARY_DUPLICATE_HEADERS,
219   IDS_ERRORPAGES_DETAILS_RESPONSE_HEADERS_MULTIPLE_LOCATION,
220   SUGGEST_NONE,
221  },
222  {net::ERR_CONTENT_LENGTH_MISMATCH,
223   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
224   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
225   IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
226   IDS_ERRORPAGES_DETAILS_CONNECTION_CLOSED,
227   SUGGEST_RELOAD,
228  },
229  {net::ERR_INCOMPLETE_CHUNKED_ENCODING,
230   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
231   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
232   IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
233   IDS_ERRORPAGES_DETAILS_CONNECTION_CLOSED,
234   SUGGEST_RELOAD,
235  },
236  {net::ERR_SSL_PROTOCOL_ERROR,
237   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
238   IDS_ERRORPAGES_HEADING_SSL_PROTOCOL_ERROR,
239   IDS_ERRORPAGES_SUMMARY_SSL_PROTOCOL_ERROR,
240   IDS_ERRORPAGES_DETAILS_SSL_PROTOCOL_ERROR,
241   SUGGEST_NONE,
242  },
243  {net::ERR_SSL_UNSAFE_NEGOTIATION,
244   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
245   IDS_ERRORPAGES_HEADING_SSL_PROTOCOL_ERROR,
246   IDS_ERRORPAGES_SUMMARY_SSL_PROTOCOL_ERROR,
247   IDS_ERRORPAGES_DETAILS_SSL_UNSAFE_NEGOTIATION,
248   SUGGEST_NONE,
249  },
250  {net::ERR_BAD_SSL_CLIENT_AUTH_CERT,
251   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
252   IDS_ERRORPAGES_HEADING_BAD_SSL_CLIENT_AUTH_CERT,
253   IDS_ERRORPAGES_SUMMARY_BAD_SSL_CLIENT_AUTH_CERT,
254   IDS_ERRORPAGES_DETAILS_BAD_SSL_CLIENT_AUTH_CERT,
255   SUGGEST_NONE,
256  },
257  {net::ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY,
258   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
259   IDS_ERRORPAGES_HEADING_WEAK_SERVER_EPHEMERAL_DH_KEY,
260   IDS_ERRORPAGES_SUMMARY_WEAK_SERVER_EPHEMERAL_DH_KEY,
261   IDS_ERRORPAGES_DETAILS_SSL_PROTOCOL_ERROR,
262   SUGGEST_LEARNMORE,
263  },
264  {net::ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN,
265   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
266   IDS_ERRORPAGES_HEADING_PINNING_FAILURE,
267   IDS_ERRORPAGES_SUMMARY_PINNING_FAILURE,
268   IDS_ERRORPAGES_DETAILS_PINNING_FAILURE,
269   SUGGEST_NONE,
270  },
271  {net::ERR_TEMPORARILY_THROTTLED,
272   IDS_ERRORPAGES_TITLE_ACCESS_DENIED,
273   IDS_ERRORPAGES_HEADING_ACCESS_DENIED,
274   IDS_ERRORPAGES_SUMMARY_TEMPORARILY_THROTTLED,
275   IDS_ERRORPAGES_DETAILS_TEMPORARILY_THROTTLED,
276   SUGGEST_NONE,
277  },
278  {net::ERR_BLOCKED_BY_CLIENT,
279   IDS_ERRORPAGES_TITLE_BLOCKED,
280   IDS_ERRORPAGES_HEADING_BLOCKED,
281   IDS_ERRORPAGES_SUMMARY_BLOCKED,
282   IDS_ERRORPAGES_DETAILS_BLOCKED,
283   SUGGEST_RELOAD | SUGGEST_DISABLE_EXTENSION,
284  },
285  {net::ERR_NETWORK_CHANGED,
286   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
287   IDS_ERRORPAGES_HEADING_NETWORK_ACCESS_DENIED,
288   IDS_ERRORPAGES_SUMMARY_NETWORK_CHANGED,
289   IDS_ERRORPAGES_DETAILS_NETWORK_CHANGED,
290   SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION,
291  },
292  {net::ERR_BLOCKED_BY_ADMINISTRATOR,
293   IDS_ERRORPAGES_TITLE_BLOCKED,
294   IDS_ERRORPAGES_HEADING_BLOCKED_BY_ADMINISTRATOR,
295   IDS_ERRORPAGES_SUMMARY_BLOCKED_BY_ADMINISTRATOR,
296   IDS_ERRORPAGES_DETAILS_BLOCKED_BY_ADMINISTRATOR,
297   SUGGEST_VIEW_POLICIES | SUGGEST_CONTACT_ADMINISTRATOR,
298  },
299};
300
301// Special error page to be used in the case of navigating back to a page
302// generated by a POST.  LocalizedError::HasStrings expects this net error code
303// to also appear in the array above.
304const LocalizedErrorMap repost_error = {
305  net::ERR_CACHE_MISS,
306  IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
307  IDS_HTTP_POST_WARNING_TITLE,
308  IDS_ERRORPAGES_HTTP_POST_WARNING,
309  IDS_ERRORPAGES_DETAILS_CACHE_MISS,
310  SUGGEST_RELOAD,
311};
312
313const LocalizedErrorMap http_error_options[] = {
314  {403,
315   IDS_ERRORPAGES_TITLE_ACCESS_DENIED,
316   IDS_ERRORPAGES_HEADING_ACCESS_DENIED,
317   IDS_ERRORPAGES_SUMMARY_FORBIDDEN,
318   IDS_ERRORPAGES_DETAILS_FORBIDDEN,
319   SUGGEST_NONE,
320  },
321  {410,
322   IDS_ERRORPAGES_TITLE_NOT_FOUND,
323   IDS_ERRORPAGES_HEADING_NOT_FOUND,
324   IDS_ERRORPAGES_SUMMARY_GONE,
325   IDS_ERRORPAGES_DETAILS_GONE,
326   SUGGEST_NONE,
327  },
328
329  {500,
330   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
331   IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
332   IDS_ERRORPAGES_SUMMARY_INTERNAL_SERVER_ERROR,
333   IDS_ERRORPAGES_DETAILS_INTERNAL_SERVER_ERROR,
334   SUGGEST_RELOAD,
335  },
336  {501,
337   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
338   IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
339   IDS_ERRORPAGES_SUMMARY_WEBSITE_CANNOT_HANDLE,
340   IDS_ERRORPAGES_DETAILS_NOT_IMPLEMENTED,
341   SUGGEST_NONE,
342  },
343  {502,
344   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
345   IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
346   IDS_ERRORPAGES_SUMMARY_BAD_GATEWAY,
347   IDS_ERRORPAGES_DETAILS_BAD_GATEWAY,
348   SUGGEST_RELOAD,
349  },
350  {503,
351   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
352   IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
353   IDS_ERRORPAGES_SUMMARY_SERVICE_UNAVAILABLE,
354   IDS_ERRORPAGES_DETAILS_SERVICE_UNAVAILABLE,
355   SUGGEST_RELOAD,
356  },
357  {504,
358   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
359   IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
360   IDS_ERRORPAGES_SUMMARY_GATEWAY_TIMEOUT,
361   IDS_ERRORPAGES_DETAILS_GATEWAY_TIMEOUT,
362   SUGGEST_RELOAD,
363  },
364  {505,
365   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
366   IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
367   IDS_ERRORPAGES_SUMMARY_WEBSITE_CANNOT_HANDLE,
368   IDS_ERRORPAGES_DETAILS_HTTP_VERSION_NOT_SUPPORTED,
369   SUGGEST_NONE,
370  },
371};
372
373const LocalizedErrorMap dns_probe_error_options[] = {
374  {chrome_common_net::DNS_PROBE_POSSIBLE,
375   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
376   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
377   IDS_ERRORPAGES_SUMMARY_DNS_PROBE_RUNNING,
378   IDS_ERRORPAGES_DETAILS_DNS_PROBE_RUNNING,
379   SUGGEST_RELOAD,
380  },
381
382  // DNS_PROBE_NOT_RUN is not here; NetErrorHelper will restore the original
383  // error, which might be one of several DNS-related errors.
384
385  {chrome_common_net::DNS_PROBE_STARTED,
386   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
387   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
388   IDS_ERRORPAGES_SUMMARY_DNS_PROBE_RUNNING,
389   IDS_ERRORPAGES_DETAILS_DNS_PROBE_RUNNING,
390   // Include SUGGEST_RELOAD so the More button doesn't jump when we update.
391   SUGGEST_RELOAD,
392  },
393
394  // DNS_PROBE_FINISHED_UNKNOWN is not here; NetErrorHelper will restore the
395  // original error, which might be one of several DNS-related errors.
396
397  {chrome_common_net::DNS_PROBE_FINISHED_NO_INTERNET,
398   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
399   IDS_ERRORPAGES_HEADING_INTERNET_DISCONNECTED,
400   IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED,
401   IDS_ERRORPAGES_DETAILS_INTERNET_DISCONNECTED,
402   SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG,
403  },
404  {chrome_common_net::DNS_PROBE_FINISHED_BAD_CONFIG,
405   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
406   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
407   IDS_ERRORPAGES_SUMMARY_NAME_NOT_RESOLVED,
408   IDS_ERRORPAGES_DETAILS_NAME_NOT_RESOLVED,
409   SUGGEST_RELOAD | SUGGEST_DNS_CONFIG | SUGGEST_FIREWALL_CONFIG,
410  },
411  {chrome_common_net::DNS_PROBE_FINISHED_NXDOMAIN,
412   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
413   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
414   IDS_ERRORPAGES_SUMMARY_NAME_NOT_RESOLVED,
415   IDS_ERRORPAGES_DETAILS_NAME_NOT_RESOLVED,
416   SUGGEST_RELOAD,
417  },
418};
419
420const LocalizedErrorMap* FindErrorMapInArray(const LocalizedErrorMap* maps,
421                                                   size_t num_maps,
422                                                   int error_code) {
423  for (size_t i = 0; i < num_maps; ++i) {
424    if (maps[i].error_code == error_code)
425      return &maps[i];
426  }
427  return NULL;
428}
429
430const LocalizedErrorMap* LookupErrorMap(const std::string& error_domain,
431                                        int error_code, bool is_post) {
432  if (error_domain == net::kErrorDomain) {
433    // Display a different page in the special case of navigating through the
434    // history to an uncached page created by a POST.
435    if (is_post && error_code == net::ERR_CACHE_MISS)
436      return &repost_error;
437    return FindErrorMapInArray(net_error_options,
438                               arraysize(net_error_options),
439                               error_code);
440  } else if (error_domain == LocalizedError::kHttpErrorDomain) {
441    return FindErrorMapInArray(http_error_options,
442                               arraysize(http_error_options),
443                               error_code);
444  } else if (error_domain == chrome_common_net::kDnsProbeErrorDomain) {
445    const LocalizedErrorMap* map =
446        FindErrorMapInArray(dns_probe_error_options,
447                            arraysize(dns_probe_error_options),
448                            error_code);
449    DCHECK(map);
450    return map;
451  } else {
452    NOTREACHED();
453    return NULL;
454  }
455}
456
457bool LocaleIsRTL() {
458#if defined(TOOLKIT_GTK)
459  // base::i18n::IsRTL() uses the GTK text direction, which doesn't work within
460  // the renderer sandbox.
461  return base::i18n::ICUIsRTL();
462#else
463  return base::i18n::IsRTL();
464#endif
465}
466
467// Returns a dictionary containing the strings for the settings menu under the
468// wrench, and the advanced settings button.
469base::DictionaryValue* GetStandardMenuItemsText() {
470  base::DictionaryValue* standard_menu_items_text = new base::DictionaryValue();
471  standard_menu_items_text->SetString("settingsTitle",
472      l10n_util::GetStringUTF16(IDS_SETTINGS_TITLE));
473  standard_menu_items_text->SetString("advancedTitle",
474      l10n_util::GetStringUTF16(IDS_SETTINGS_SHOW_ADVANCED_SETTINGS));
475  return standard_menu_items_text;
476}
477
478// Gets the icon class for a given |error_domain| and |error_code|.
479const char* GetIconClassForError(const std::string& error_domain,
480                                 int error_code) {
481  if ((error_code == net::ERR_INTERNET_DISCONNECTED &&
482       error_domain == net::kErrorDomain) ||
483      (error_code == chrome_common_net::DNS_PROBE_FINISHED_NO_INTERNET &&
484       error_domain == chrome_common_net::kDnsProbeErrorDomain))
485    return "icon-offline";
486
487  return "icon-generic";
488}
489
490}  // namespace
491
492const char LocalizedError::kHttpErrorDomain[] = "http";
493
494void LocalizedError::GetStrings(int error_code,
495                                const std::string& error_domain,
496                                const GURL& failed_url,
497                                bool is_post,
498                                const std::string& locale,
499                                const std::string& accept_languages,
500                                base::DictionaryValue* error_strings) {
501  bool rtl = LocaleIsRTL();
502  error_strings->SetString("textdirection", rtl ? "rtl" : "ltr");
503
504  // Grab the strings and settings that depend on the error type.  Init
505  // options with default values.
506  LocalizedErrorMap options = {
507    0,
508    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
509    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
510    IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
511    kErrorPagesNoDetails,
512    SUGGEST_NONE,
513  };
514
515  const LocalizedErrorMap* error_map = LookupErrorMap(error_domain, error_code,
516                                                      is_post);
517  if (error_map)
518    options = *error_map;
519
520  // If we got "access denied" but the url was a file URL, then we say it was a
521  // file instead of just using the "not available" default message. Just adding
522  // ERR_ACCESS_DENIED to the map isn't sufficient, since that message may be
523  // generated by some OSs when the operation doesn't involve a file URL.
524  if (error_domain == net::kErrorDomain &&
525      error_code == net::ERR_ACCESS_DENIED &&
526      failed_url.scheme() == "file") {
527    options.title_resource_id = IDS_ERRORPAGES_TITLE_ACCESS_DENIED;
528    options.heading_resource_id = IDS_ERRORPAGES_HEADING_FILE_ACCESS_DENIED;
529    options.summary_resource_id = IDS_ERRORPAGES_SUMMARY_FILE_ACCESS_DENIED;
530    options.details_resource_id = IDS_ERRORPAGES_DETAILS_FILE_ACCESS_DENIED;
531    options.suggestions = SUGGEST_NONE;
532  }
533
534  base::string16 failed_url_string(net::FormatUrl(
535      failed_url, accept_languages, net::kFormatUrlOmitNothing,
536      net::UnescapeRule::NORMAL, NULL, NULL, NULL));
537  // URLs are always LTR.
538  if (rtl)
539    base::i18n::WrapStringWithLTRFormatting(&failed_url_string);
540  error_strings->SetString("title",
541      l10n_util::GetStringFUTF16(options.title_resource_id, failed_url_string));
542  error_strings->SetString("heading",
543      l10n_util::GetStringUTF16(options.heading_resource_id));
544
545  std::string icon_class = GetIconClassForError(error_domain, error_code);
546  error_strings->SetString("iconClass", icon_class);
547
548  base::DictionaryValue* summary = new base::DictionaryValue;
549  summary->SetString("msg",
550      l10n_util::GetStringUTF16(options.summary_resource_id));
551  summary->SetString("failedUrl", failed_url_string);
552  summary->SetString("hostName", net::IDNToUnicode(failed_url.host(),
553                                                   accept_languages));
554  summary->SetString("productName",
555                     l10n_util::GetStringUTF16(IDS_PRODUCT_NAME));
556
557  error_strings->SetString(
558      "more", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_MORE));
559  error_strings->SetString(
560      "less", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_LESS));
561  error_strings->Set("summary", summary);
562#if defined(OS_CHROMEOS)
563  error_strings->SetString(
564      "diagnose", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_DIAGNOSE));
565#endif  // defined(OS_CHROMEOS)
566
567  if (options.details_resource_id != kErrorPagesNoDetails) {
568    error_strings->SetString(
569        "errorDetails", l10n_util::GetStringUTF16(options.details_resource_id));
570  }
571
572  base::string16 error_string;
573  if (error_domain == net::kErrorDomain) {
574    // Non-internationalized error string, for debugging Chrome itself.
575    std::string ascii_error_string = net::ErrorToString(error_code);
576    // Remove the leading "net::" from the returned string.
577    base::RemoveChars(ascii_error_string, "net:", &ascii_error_string);
578    error_string = ASCIIToUTF16(ascii_error_string);
579  } else if (error_domain == chrome_common_net::kDnsProbeErrorDomain) {
580    std::string ascii_error_string =
581        chrome_common_net::DnsProbeStatusToString(error_code);
582    error_string = ASCIIToUTF16(ascii_error_string);
583  } else {
584    DCHECK_EQ(LocalizedError::kHttpErrorDomain, error_domain);
585    error_string = base::IntToString16(error_code);
586  }
587  error_strings->SetString("errorCode",
588      l10n_util::GetStringFUTF16(IDS_ERRORPAGES_ERROR_CODE, error_string));
589
590  base::ListValue* suggestions = new base::ListValue();
591
592  // Platform specific instructions 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 (options.suggestions & SUGGEST_RELOAD) {
623    if (!is_post) {
624      base::DictionaryValue* reload_button = new base::DictionaryValue;
625      reload_button->SetString("msg",
626          l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_RELOAD));
627      reload_button->SetString("reloadUrl", failed_url.spec());
628      error_strings->Set("reload", reload_button);
629    } else {
630      // If the page was created by a post, it can't be reloaded in the same
631      // way, so just add a suggestion instead.
632      // TODO(mmenke):  Make the reload button bring up the repost confirmation
633      //                dialog for pages resulting from posts.
634      base::DictionaryValue* suggest_reload_repost = new base::DictionaryValue;
635      suggest_reload_repost->SetString("header",
636          l10n_util::GetStringUTF16(
637              IDS_ERRORPAGES_SUGGESTION_RELOAD_REPOST_HEADER));
638      suggest_reload_repost->SetString("body",
639          l10n_util::GetStringUTF16(
640              IDS_ERRORPAGES_SUGGESTION_RELOAD_REPOST_BODY));
641      suggestions->Append(suggest_reload_repost);
642    }
643  }
644
645  if (options.suggestions & SUGGEST_CHECK_CONNECTION) {
646    base::DictionaryValue* suggest_check_connection = new base::DictionaryValue;
647    suggest_check_connection->SetString("header",
648        l10n_util::GetStringUTF16(
649            IDS_ERRORPAGES_SUGGESTION_CHECK_CONNECTION_HEADER));
650    suggest_check_connection->SetString("body",
651        l10n_util::GetStringUTF16(
652            IDS_ERRORPAGES_SUGGESTION_CHECK_CONNECTION_BODY));
653    suggestions->Append(suggest_check_connection);
654  }
655
656  if (options.suggestions & SUGGEST_DNS_CONFIG) {
657    base::DictionaryValue* suggest_dns_config = new base::DictionaryValue;
658    suggest_dns_config->SetString("header",
659        l10n_util::GetStringUTF16(
660            IDS_ERRORPAGES_SUGGESTION_DNS_CONFIG_HEADER));
661    suggest_dns_config->SetString("body",
662        l10n_util::GetStringUTF16(
663            IDS_ERRORPAGES_SUGGESTION_DNS_CONFIG_BODY));
664    suggestions->Append(suggest_dns_config);
665
666    base::DictionaryValue* suggest_network_prediction =
667        GetStandardMenuItemsText();
668    suggest_network_prediction->SetString("header",
669        l10n_util::GetStringUTF16(
670            IDS_ERRORPAGES_SUGGESTION_NETWORK_PREDICTION_HEADER));
671    suggest_network_prediction->SetString("body",
672        l10n_util::GetStringUTF16(
673            IDS_ERRORPAGES_SUGGESTION_NETWORK_PREDICTION_BODY));
674    suggest_network_prediction->SetString(
675        "noNetworkPredictionTitle",
676        l10n_util::GetStringUTF16(
677            IDS_NETWORK_PREDICTION_ENABLED_DESCRIPTION));
678    suggestions->Append(suggest_network_prediction);
679  }
680
681  if (options.suggestions & SUGGEST_FIREWALL_CONFIG) {
682    base::DictionaryValue* suggest_firewall_config = new base::DictionaryValue;
683    suggest_firewall_config->SetString("header",
684        l10n_util::GetStringUTF16(
685            IDS_ERRORPAGES_SUGGESTION_FIREWALL_CONFIG_HEADER));
686    suggest_firewall_config->SetString("body",
687        l10n_util::GetStringUTF16(
688            IDS_ERRORPAGES_SUGGESTION_FIREWALL_CONFIG_BODY));
689    suggestions->Append(suggest_firewall_config);
690  }
691
692  if (options.suggestions & SUGGEST_PROXY_CONFIG) {
693    base::DictionaryValue* suggest_proxy_config = GetStandardMenuItemsText();
694    suggest_proxy_config->SetString("header",
695        l10n_util::GetStringUTF16(
696            IDS_ERRORPAGES_SUGGESTION_PROXY_CONFIG_HEADER));
697    suggest_proxy_config->SetString("body",
698        l10n_util::GetStringFUTF16(IDS_ERRORPAGES_SUGGESTION_PROXY_CONFIG_BODY,
699            l10n_util::GetStringUTF16(
700                IDS_ERRORPAGES_SUGGESTION_PROXY_DISABLE_PLATFORM)));
701    suggest_proxy_config->SetString("proxyTitle",
702        l10n_util::GetStringUTF16(IDS_OPTIONS_PROXIES_CONFIGURE_BUTTON));
703
704    suggestions->Append(suggest_proxy_config);
705  }
706
707  if (options.suggestions & SUGGEST_DISABLE_EXTENSION) {
708    base::DictionaryValue* suggest_disable_extension =
709        new base::DictionaryValue;
710    // There's only a header for this suggestion.
711    suggest_disable_extension->SetString("header",
712        l10n_util::GetStringUTF16(
713            IDS_ERRORPAGES_SUGGESTION_DISABLE_EXTENSION_HEADER));
714    suggestions->Append(suggest_disable_extension);
715  }
716
717  if (options.suggestions & SUGGEST_VIEW_POLICIES) {
718    base::DictionaryValue* suggest_view_policies = new base::DictionaryValue;
719    suggest_view_policies->SetString(
720        "header",
721        l10n_util::GetStringUTF16(
722            IDS_ERRORPAGES_SUGGESTION_VIEW_POLICIES_HEADER));
723    suggest_view_policies->SetString(
724        "body",
725        l10n_util::GetStringUTF16(
726            IDS_ERRORPAGES_SUGGESTION_VIEW_POLICIES_BODY));
727    suggestions->Append(suggest_view_policies);
728  }
729
730  if (options.suggestions & SUGGEST_CONTACT_ADMINISTRATOR) {
731    base::DictionaryValue* suggest_contant_administrator =
732        new base::DictionaryValue;
733    suggest_contant_administrator->SetString(
734        "body",
735        l10n_util::GetStringUTF16(
736            IDS_ERRORPAGES_SUGGESTION_CONTACT_ADMINISTRATOR_BODY));
737    suggestions->Append(suggest_contant_administrator);
738  }
739
740  if (options.suggestions & SUGGEST_LEARNMORE) {
741    GURL learn_more_url;
742    switch (options.error_code) {
743      case net::ERR_TOO_MANY_REDIRECTS:
744        learn_more_url = GURL(kRedirectLoopLearnMoreUrl);
745        break;
746      case net::ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY:
747        learn_more_url = GURL(kWeakDHKeyLearnMoreUrl);
748        break;
749      default:
750        break;
751    }
752
753    if (learn_more_url.is_valid()) {
754      // Add the language parameter to the URL.
755      std::string query = learn_more_url.query() + "&hl=" + locale;
756      GURL::Replacements repl;
757      repl.SetQueryStr(query);
758      learn_more_url = learn_more_url.ReplaceComponents(repl);
759
760      base::DictionaryValue* suggest_learn_more = new base::DictionaryValue;
761      // There's only a body for this suggestion.
762      suggest_learn_more->SetString("body",
763          l10n_util::GetStringUTF16(IDS_ERRORPAGES_SUGGESTION_LEARNMORE_BODY));
764      suggest_learn_more->SetString("learnMoreUrl", learn_more_url.spec());
765      suggestions->Append(suggest_learn_more);
766    }
767  }
768
769  error_strings->Set("suggestions", suggestions);
770}
771
772base::string16 LocalizedError::GetErrorDetails(const blink::WebURLError& error,
773                                               bool is_post) {
774  const LocalizedErrorMap* error_map =
775      LookupErrorMap(error.domain.utf8(), error.reason, is_post);
776  if (error_map)
777    return l10n_util::GetStringUTF16(error_map->details_resource_id);
778  else
779    return l10n_util::GetStringUTF16(IDS_ERRORPAGES_DETAILS_UNKNOWN);
780}
781
782bool LocalizedError::HasStrings(const std::string& error_domain,
783                                int error_code) {
784  // Whether or not the there are strings for an error does not depend on
785  // whether or not the page was be generated by a POST, so just claim it was
786  // not.
787  return LookupErrorMap(error_domain, error_code, /*is_post=*/false) != NULL;
788}
789
790void LocalizedError::GetAppErrorStrings(
791    const GURL& display_url,
792    const extensions::Extension* app,
793    base::DictionaryValue* error_strings) {
794  DCHECK(app);
795
796  bool rtl = LocaleIsRTL();
797  error_strings->SetString("textdirection", rtl ? "rtl" : "ltr");
798
799  base::string16 failed_url(ASCIIToUTF16(display_url.spec()));
800  // URLs are always LTR.
801  if (rtl)
802    base::i18n::WrapStringWithLTRFormatting(&failed_url);
803  error_strings->SetString(
804     "url", l10n_util::GetStringFUTF16(IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
805                                       failed_url.c_str()));
806
807  error_strings->SetString("title", app->name());
808  error_strings->SetString(
809      "icon",
810      extensions::IconsInfo::GetIconURL(
811          app,
812          extension_misc::EXTENSION_ICON_GIGANTOR,
813          ExtensionIconSet::MATCH_SMALLER).spec());
814  error_strings->SetString("name", app->name());
815  error_strings->SetString(
816      "msg",
817      l10n_util::GetStringUTF16(IDS_ERRORPAGES_APP_WARNING));
818
819#if defined(OS_CHROMEOS)
820  GURL learn_more_url(kAppWarningLearnMoreUrl);
821  base::DictionaryValue* suggest_learn_more = new base::DictionaryValue();
822  suggest_learn_more->SetString("msg",
823                                l10n_util::GetStringUTF16(
824                                    IDS_ERRORPAGES_SUGGESTION_LEARNMORE_BODY));
825  suggest_learn_more->SetString("learnMoreUrl", learn_more_url.spec());
826  error_strings->Set("suggestionsLearnMore", suggest_learn_more);
827#endif  // defined(OS_CHROMEOS)
828}
829