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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/browser/ssl/ssl_error_info.h" | |
6 | |
7 #include "base/i18n/message_formatter.h" | |
8 #include "base/strings/utf_string_conversions.h" | |
9 #include "chrome/grit/chromium_strings.h" | |
10 #include "chrome/grit/generated_resources.h" | |
11 #include "content/public/browser/cert_store.h" | |
12 #include "net/base/escape.h" | |
13 #include "net/base/net_errors.h" | |
14 #include "net/cert/cert_status_flags.h" | |
15 #include "net/ssl/ssl_info.h" | |
16 #include "ui/base/l10n/l10n_util.h" | |
17 #include "url/gurl.h" | |
18 | |
19 using base::UTF8ToUTF16; | |
20 | |
21 SSLErrorInfo::SSLErrorInfo(const base::string16& details, | |
22 const base::string16& short_description) | |
23 : details_(details), | |
24 short_description_(short_description) { | |
25 } | |
26 | |
27 // static | |
28 SSLErrorInfo SSLErrorInfo::CreateError(ErrorType error_type, | |
29 net::X509Certificate* cert, | |
30 const GURL& request_url) { | |
31 base::string16 details, short_description; | |
32 switch (error_type) { | |
33 case CERT_COMMON_NAME_INVALID: { | |
34 // If the certificate contains multiple DNS names, we choose the most | |
35 // representative one -- either the DNS name that's also in the subject | |
36 // field, or the first one. If this heuristic turns out to be | |
37 // inadequate, we can consider choosing the DNS name that is the | |
38 // "closest match" to the host name in the request URL, or listing all | |
39 // the DNS names with an HTML <ul>. | |
40 std::vector<std::string> dns_names; | |
41 cert->GetDNSNames(&dns_names); | |
42 DCHECK(!dns_names.empty()); | |
43 size_t i = 0; | |
44 for (; i < dns_names.size(); ++i) { | |
45 if (dns_names[i] == cert->subject().common_name) | |
46 break; | |
47 } | |
48 if (i == dns_names.size()) | |
49 i = 0; | |
50 details = | |
51 l10n_util::GetStringFUTF16(IDS_CERT_ERROR_COMMON_NAME_INVALID_DETAILS, | |
52 UTF8ToUTF16(request_url.host()), | |
53 net::EscapeForHTML( | |
54 UTF8ToUTF16(dns_names[i]))); | |
55 short_description = l10n_util::GetStringUTF16( | |
56 IDS_CERT_ERROR_COMMON_NAME_INVALID_DESCRIPTION); | |
57 break; | |
58 } | |
59 case CERT_DATE_INVALID: | |
60 if (cert->HasExpired()) { | |
61 // Make sure to round up to the smallest integer value not less than | |
62 // the expiration value (https://crbug.com/476758). | |
63 int expiration_value = | |
64 (base::Time::Now() - cert->valid_expiry()).InDays() + 1; | |
65 details = base::i18n::MessageFormatter::FormatWithNumberedArgs( | |
66 l10n_util::GetStringUTF16(IDS_CERT_ERROR_EXPIRED_DETAILS), | |
67 request_url.host(), expiration_value, base::Time::Now()); | |
68 short_description = | |
69 l10n_util::GetStringUTF16(IDS_CERT_ERROR_EXPIRED_DESCRIPTION); | |
70 } else if (base::Time::Now() < cert->valid_start()) { | |
71 details = base::i18n::MessageFormatter::FormatWithNumberedArgs( | |
72 l10n_util::GetStringUTF16(IDS_CERT_ERROR_NOT_YET_VALID_DETAILS), | |
73 request_url.host(), | |
74 (cert->valid_start() - base::Time::Now()).InDays()); | |
75 short_description = | |
76 l10n_util::GetStringUTF16(IDS_CERT_ERROR_NOT_YET_VALID_DESCRIPTION); | |
77 } else { | |
78 // Two possibilities: (1) an intermediate or root certificate has | |
79 // expired, or (2) the certificate has become valid since the error | |
80 // occurred. Both are probably rare cases. To avoid giving the wrong | |
81 // date, remove the information. | |
82 details = l10n_util::GetStringFUTF16( | |
83 IDS_CERT_ERROR_NOT_VALID_AT_THIS_TIME_DETAILS, | |
84 UTF8ToUTF16(request_url.host())); | |
85 short_description = l10n_util::GetStringUTF16( | |
86 IDS_CERT_ERROR_NOT_VALID_AT_THIS_TIME_DESCRIPTION); | |
87 } | |
88 break; | |
89 case CERT_AUTHORITY_INVALID: | |
90 details = l10n_util::GetStringFUTF16( | |
91 IDS_CERT_ERROR_AUTHORITY_INVALID_DETAILS, | |
92 UTF8ToUTF16(request_url.host())); | |
93 short_description = l10n_util::GetStringUTF16( | |
94 IDS_CERT_ERROR_AUTHORITY_INVALID_DESCRIPTION); | |
95 break; | |
96 case CERT_CONTAINS_ERRORS: | |
97 details = l10n_util::GetStringFUTF16( | |
98 IDS_CERT_ERROR_CONTAINS_ERRORS_DETAILS, | |
99 UTF8ToUTF16(request_url.host())); | |
100 short_description = | |
101 l10n_util::GetStringUTF16(IDS_CERT_ERROR_CONTAINS_ERRORS_DESCRIPTION); | |
102 break; | |
103 case CERT_NO_REVOCATION_MECHANISM: | |
104 details = l10n_util::GetStringUTF16( | |
105 IDS_CERT_ERROR_NO_REVOCATION_MECHANISM_DETAILS); | |
106 short_description = l10n_util::GetStringUTF16( | |
107 IDS_CERT_ERROR_NO_REVOCATION_MECHANISM_DESCRIPTION); | |
108 break; | |
109 case CERT_REVOKED: | |
110 details = l10n_util::GetStringFUTF16(IDS_CERT_ERROR_REVOKED_CERT_DETAILS, | |
111 UTF8ToUTF16(request_url.host())); | |
112 short_description = | |
113 l10n_util::GetStringUTF16(IDS_CERT_ERROR_REVOKED_CERT_DESCRIPTION); | |
114 break; | |
115 case CERT_INVALID: | |
116 details = l10n_util::GetStringFUTF16( | |
117 IDS_CERT_ERROR_INVALID_CERT_DETAILS, | |
118 UTF8ToUTF16(request_url.host())); | |
119 short_description = | |
120 l10n_util::GetStringUTF16(IDS_CERT_ERROR_INVALID_CERT_DESCRIPTION); | |
121 break; | |
122 case CERT_WEAK_SIGNATURE_ALGORITHM: | |
123 details = l10n_util::GetStringFUTF16( | |
124 IDS_CERT_ERROR_WEAK_SIGNATURE_ALGORITHM_DETAILS, | |
125 UTF8ToUTF16(request_url.host())); | |
126 short_description = l10n_util::GetStringUTF16( | |
127 IDS_CERT_ERROR_WEAK_SIGNATURE_ALGORITHM_DESCRIPTION); | |
128 break; | |
129 case CERT_WEAK_KEY: | |
130 details = l10n_util::GetStringFUTF16( | |
131 IDS_CERT_ERROR_WEAK_KEY_DETAILS, UTF8ToUTF16(request_url.host())); | |
132 short_description = l10n_util::GetStringUTF16( | |
133 IDS_CERT_ERROR_WEAK_KEY_DESCRIPTION); | |
134 break; | |
135 case CERT_WEAK_KEY_DH: | |
136 details = l10n_util::GetStringFUTF16( | |
137 IDS_CERT_ERROR_WEAK_KEY_DETAILS, UTF8ToUTF16(request_url.host())); | |
138 short_description = l10n_util::GetStringUTF16( | |
139 IDS_CERT_ERROR_WEAK_KEY_DESCRIPTION); | |
140 case CERT_NAME_CONSTRAINT_VIOLATION: | |
141 details = l10n_util::GetStringFUTF16( | |
142 IDS_CERT_ERROR_NAME_CONSTRAINT_VIOLATION_DETAILS, | |
143 UTF8ToUTF16(request_url.host())); | |
144 short_description = l10n_util::GetStringUTF16( | |
145 IDS_CERT_ERROR_NAME_CONSTRAINT_VIOLATION_DESCRIPTION); | |
146 break; | |
147 case CERT_VALIDITY_TOO_LONG: | |
148 details = | |
149 l10n_util::GetStringFUTF16(IDS_CERT_ERROR_VALIDITY_TOO_LONG_DETAILS, | |
150 UTF8ToUTF16(request_url.host())); | |
151 short_description = l10n_util::GetStringUTF16( | |
152 IDS_CERT_ERROR_VALIDITY_TOO_LONG_DESCRIPTION); | |
153 break; | |
154 case CERT_PINNED_KEY_MISSING: | |
155 details = l10n_util::GetStringUTF16( | |
156 IDS_ERRORPAGES_SUMMARY_PINNING_FAILURE); | |
157 short_description = l10n_util::GetStringUTF16( | |
158 IDS_ERRORPAGES_DETAILS_PINNING_FAILURE); | |
159 break; | |
160 case CERT_UNABLE_TO_CHECK_REVOCATION: | |
161 details = l10n_util::GetStringUTF16( | |
162 IDS_CERT_ERROR_UNABLE_TO_CHECK_REVOCATION_DETAILS); | |
163 short_description = l10n_util::GetStringUTF16( | |
164 IDS_CERT_ERROR_UNABLE_TO_CHECK_REVOCATION_DESCRIPTION); | |
165 break; | |
166 case UNKNOWN: | |
167 details = l10n_util::GetStringUTF16(IDS_CERT_ERROR_UNKNOWN_ERROR_DETAILS); | |
168 short_description = | |
169 l10n_util::GetStringUTF16(IDS_CERT_ERROR_UNKNOWN_ERROR_DESCRIPTION); | |
170 break; | |
171 default: | |
172 NOTREACHED(); | |
173 } | |
174 return SSLErrorInfo(details, short_description); | |
175 } | |
176 | |
177 SSLErrorInfo::~SSLErrorInfo() { | |
178 } | |
179 | |
180 // static | |
181 SSLErrorInfo::ErrorType SSLErrorInfo::NetErrorToErrorType(int net_error) { | |
182 switch (net_error) { | |
183 case net::ERR_CERT_COMMON_NAME_INVALID: | |
184 return CERT_COMMON_NAME_INVALID; | |
185 case net::ERR_CERT_DATE_INVALID: | |
186 return CERT_DATE_INVALID; | |
187 case net::ERR_CERT_AUTHORITY_INVALID: | |
188 return CERT_AUTHORITY_INVALID; | |
189 case net::ERR_CERT_CONTAINS_ERRORS: | |
190 return CERT_CONTAINS_ERRORS; | |
191 case net::ERR_CERT_NO_REVOCATION_MECHANISM: | |
192 return CERT_NO_REVOCATION_MECHANISM; | |
193 case net::ERR_CERT_UNABLE_TO_CHECK_REVOCATION: | |
194 return CERT_UNABLE_TO_CHECK_REVOCATION; | |
195 case net::ERR_CERT_REVOKED: | |
196 return CERT_REVOKED; | |
197 case net::ERR_CERT_INVALID: | |
198 return CERT_INVALID; | |
199 case net::ERR_CERT_WEAK_SIGNATURE_ALGORITHM: | |
200 return CERT_WEAK_SIGNATURE_ALGORITHM; | |
201 case net::ERR_CERT_WEAK_KEY: | |
202 return CERT_WEAK_KEY; | |
203 case net::ERR_CERT_NAME_CONSTRAINT_VIOLATION: | |
204 return CERT_NAME_CONSTRAINT_VIOLATION; | |
205 case net::ERR_CERT_VALIDITY_TOO_LONG: | |
206 return CERT_VALIDITY_TOO_LONG; | |
207 case net::ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY: | |
208 return CERT_WEAK_KEY_DH; | |
209 case net::ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN: | |
210 return CERT_PINNED_KEY_MISSING; | |
211 default: | |
212 NOTREACHED(); | |
213 return UNKNOWN; | |
214 } | |
215 } | |
216 | |
217 // static | |
218 void SSLErrorInfo::GetErrorsForCertStatus(int cert_id, | |
219 net::CertStatus cert_status, | |
220 const GURL& url, | |
221 std::vector<SSLErrorInfo>* errors) { | |
222 const net::CertStatus kErrorFlags[] = { | |
223 net::CERT_STATUS_COMMON_NAME_INVALID, | |
224 net::CERT_STATUS_DATE_INVALID, | |
225 net::CERT_STATUS_AUTHORITY_INVALID, | |
226 net::CERT_STATUS_NO_REVOCATION_MECHANISM, | |
227 net::CERT_STATUS_UNABLE_TO_CHECK_REVOCATION, | |
228 net::CERT_STATUS_REVOKED, | |
229 net::CERT_STATUS_INVALID, | |
230 net::CERT_STATUS_WEAK_SIGNATURE_ALGORITHM, | |
231 net::CERT_STATUS_WEAK_KEY, | |
232 net::CERT_STATUS_NAME_CONSTRAINT_VIOLATION, | |
233 net::CERT_STATUS_VALIDITY_TOO_LONG, | |
234 }; | |
235 | |
236 const ErrorType kErrorTypes[] = { | |
237 CERT_COMMON_NAME_INVALID, | |
238 CERT_DATE_INVALID, | |
239 CERT_AUTHORITY_INVALID, | |
240 CERT_NO_REVOCATION_MECHANISM, | |
241 CERT_UNABLE_TO_CHECK_REVOCATION, | |
242 CERT_REVOKED, | |
243 CERT_INVALID, | |
244 CERT_WEAK_SIGNATURE_ALGORITHM, | |
245 CERT_WEAK_KEY, | |
246 CERT_NAME_CONSTRAINT_VIOLATION, | |
247 CERT_VALIDITY_TOO_LONG, | |
248 }; | |
249 DCHECK(arraysize(kErrorFlags) == arraysize(kErrorTypes)); | |
250 | |
251 scoped_refptr<net::X509Certificate> cert = NULL; | |
252 for (size_t i = 0; i < arraysize(kErrorFlags); ++i) { | |
253 if (cert_status & kErrorFlags[i]) { | |
254 if (!cert.get()) { | |
255 bool r = content::CertStore::GetInstance()->RetrieveCert( | |
256 cert_id, &cert); | |
257 DCHECK(r); | |
258 } | |
259 if (errors) { | |
260 errors->push_back( | |
261 SSLErrorInfo::CreateError(kErrorTypes[i], cert.get(), url)); | |
262 } | |
263 } | |
264 } | |
265 } | |
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