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1 // Copyright (c) 2011 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_manager.h" | |
6 | |
7 #include "base/utf_string_conversions.h" | |
8 #include "chrome/browser/load_from_memory_cache_details.h" | |
9 #include "chrome/browser/ssl/ssl_cert_error_handler.h" | |
10 #include "chrome/browser/ssl/ssl_policy.h" | |
11 #include "chrome/browser/ssl/ssl_request_info.h" | |
12 #include "content/browser/browser_thread.h" | |
13 #include "content/browser/renderer_host/resource_dispatcher_host.h" | |
14 #include "content/browser/renderer_host/resource_dispatcher_host_request_info.h" | |
15 #include "content/browser/renderer_host/resource_request_details.h" | |
16 #include "content/browser/tab_contents/navigation_details.h" | |
17 #include "content/browser/tab_contents/navigation_entry.h" | |
18 #include "content/browser/tab_contents/provisional_load_details.h" | |
19 #include "content/browser/tab_contents/tab_contents.h" | |
20 #include "content/common/notification_service.h" | |
21 #include "grit/generated_resources.h" | |
22 #include "net/base/cert_status_flags.h" | |
23 #include "ui/base/l10n/l10n_util.h" | |
24 | |
25 // static | |
26 void SSLManager::OnSSLCertificateError(ResourceDispatcherHost* rdh, | |
27 net::URLRequest* request, | |
28 int cert_error, | |
29 net::X509Certificate* cert) { | |
30 DVLOG(1) << "OnSSLCertificateError() cert_error: " << cert_error | |
31 << " url: " << request->url().spec(); | |
32 | |
33 ResourceDispatcherHostRequestInfo* info = | |
34 ResourceDispatcherHost::InfoForRequest(request); | |
35 DCHECK(info); | |
36 | |
37 // A certificate error occurred. Construct a SSLCertErrorHandler object and | |
38 // hand it over to the UI thread for processing. | |
39 BrowserThread::PostTask( | |
40 BrowserThread::UI, FROM_HERE, | |
41 NewRunnableMethod(new SSLCertErrorHandler(rdh, | |
42 request, | |
43 info->resource_type(), | |
44 cert_error, | |
45 cert), | |
46 &SSLCertErrorHandler::Dispatch)); | |
47 } | |
48 | |
49 // static | |
50 void SSLManager::NotifySSLInternalStateChanged() { | |
51 NotificationService::current()->Notify( | |
52 NotificationType::SSL_INTERNAL_STATE_CHANGED, | |
53 NotificationService::AllSources(), | |
54 NotificationService::NoDetails()); | |
55 } | |
56 | |
57 // static | |
58 std::string SSLManager::SerializeSecurityInfo(int cert_id, | |
59 int cert_status, | |
60 int security_bits, | |
61 int ssl_connection_status) { | |
62 Pickle pickle; | |
63 pickle.WriteInt(cert_id); | |
64 pickle.WriteInt(cert_status); | |
65 pickle.WriteInt(security_bits); | |
66 pickle.WriteInt(ssl_connection_status); | |
67 return std::string(static_cast<const char*>(pickle.data()), pickle.size()); | |
68 } | |
69 | |
70 // static | |
71 bool SSLManager::DeserializeSecurityInfo(const std::string& state, | |
72 int* cert_id, | |
73 int* cert_status, | |
74 int* security_bits, | |
75 int* ssl_connection_status) { | |
76 DCHECK(cert_id && cert_status && security_bits && ssl_connection_status); | |
77 if (state.empty()) { | |
78 // No SSL used. | |
79 *cert_id = 0; | |
80 // The following are not applicable and are set to the default values. | |
81 *cert_status = 0; | |
82 *security_bits = -1; | |
83 *ssl_connection_status = 0; | |
84 return false; | |
85 } | |
86 | |
87 Pickle pickle(state.data(), static_cast<int>(state.size())); | |
88 void * iter = NULL; | |
89 return pickle.ReadInt(&iter, cert_id) && | |
90 pickle.ReadInt(&iter, cert_status) && | |
91 pickle.ReadInt(&iter, security_bits) && | |
92 pickle.ReadInt(&iter, ssl_connection_status); | |
93 } | |
94 | |
95 // static | |
96 string16 SSLManager::GetEVCertName(const net::X509Certificate& cert) { | |
97 // EV are required to have an organization name and country. | |
98 if (cert.subject().organization_names.empty() || | |
99 cert.subject().country_name.empty()) { | |
100 NOTREACHED(); | |
101 return string16(); | |
102 } | |
103 | |
104 return l10n_util::GetStringFUTF16( | |
105 IDS_SECURE_CONNECTION_EV, | |
106 UTF8ToUTF16(cert.subject().organization_names[0]), | |
107 UTF8ToUTF16(cert.subject().country_name)); | |
108 } | |
109 | |
110 SSLManager::SSLManager(NavigationController* controller) | |
111 : backend_(controller), | |
112 policy_(new SSLPolicy(&backend_)), | |
113 controller_(controller) { | |
114 DCHECK(controller_); | |
115 | |
116 // Subscribe to various notifications. | |
117 registrar_.Add(this, NotificationType::FAIL_PROVISIONAL_LOAD_WITH_ERROR, | |
118 Source<NavigationController>(controller_)); | |
119 registrar_.Add(this, NotificationType::RESOURCE_RESPONSE_STARTED, | |
120 Source<RenderViewHostDelegate>(controller_->tab_contents())); | |
121 registrar_.Add(this, NotificationType::RESOURCE_RECEIVED_REDIRECT, | |
122 Source<RenderViewHostDelegate>(controller_->tab_contents())); | |
123 registrar_.Add(this, NotificationType::LOAD_FROM_MEMORY_CACHE, | |
124 Source<NavigationController>(controller_)); | |
125 registrar_.Add(this, NotificationType::SSL_INTERNAL_STATE_CHANGED, | |
126 NotificationService::AllSources()); | |
127 } | |
128 | |
129 SSLManager::~SSLManager() { | |
130 } | |
131 | |
132 void SSLManager::DidCommitProvisionalLoad( | |
133 const NotificationDetails& in_details) { | |
134 content::LoadCommittedDetails* details = | |
135 Details<content::LoadCommittedDetails>(in_details).ptr(); | |
136 | |
137 NavigationEntry* entry = controller_->GetActiveEntry(); | |
138 | |
139 if (details->is_main_frame) { | |
140 if (entry) { | |
141 // Decode the security details. | |
142 int ssl_cert_id, ssl_cert_status, ssl_security_bits, | |
143 ssl_connection_status; | |
144 DeserializeSecurityInfo(details->serialized_security_info, | |
145 &ssl_cert_id, | |
146 &ssl_cert_status, | |
147 &ssl_security_bits, | |
148 &ssl_connection_status); | |
149 | |
150 // We may not have an entry if this is a navigation to an initial blank | |
151 // page. Reset the SSL information and add the new data we have. | |
152 entry->ssl() = NavigationEntry::SSLStatus(); | |
153 entry->ssl().set_cert_id(ssl_cert_id); | |
154 entry->ssl().set_cert_status(ssl_cert_status); | |
155 entry->ssl().set_security_bits(ssl_security_bits); | |
156 entry->ssl().set_connection_status(ssl_connection_status); | |
157 } | |
158 } | |
159 | |
160 UpdateEntry(entry); | |
161 } | |
162 | |
163 void SSLManager::DidRunInsecureContent(const std::string& security_origin) { | |
164 policy()->DidRunInsecureContent(controller_->GetActiveEntry(), | |
165 security_origin); | |
166 } | |
167 | |
168 bool SSLManager::ProcessedSSLErrorFromRequest() const { | |
169 NavigationEntry* entry = controller_->GetActiveEntry(); | |
170 if (!entry) { | |
171 NOTREACHED(); | |
172 return false; | |
173 } | |
174 | |
175 return net::IsCertStatusError(entry->ssl().cert_status()); | |
176 } | |
177 | |
178 void SSLManager::Observe(NotificationType type, | |
179 const NotificationSource& source, | |
180 const NotificationDetails& details) { | |
181 // Dispatch by type. | |
182 switch (type.value) { | |
183 case NotificationType::FAIL_PROVISIONAL_LOAD_WITH_ERROR: | |
184 // Do nothing. | |
185 break; | |
186 case NotificationType::RESOURCE_RESPONSE_STARTED: | |
187 DidStartResourceResponse(Details<ResourceRequestDetails>(details).ptr()); | |
188 break; | |
189 case NotificationType::RESOURCE_RECEIVED_REDIRECT: | |
190 DidReceiveResourceRedirect( | |
191 Details<ResourceRedirectDetails>(details).ptr()); | |
192 break; | |
193 case NotificationType::LOAD_FROM_MEMORY_CACHE: | |
194 DidLoadFromMemoryCache( | |
195 Details<LoadFromMemoryCacheDetails>(details).ptr()); | |
196 break; | |
197 case NotificationType::SSL_INTERNAL_STATE_CHANGED: | |
198 DidChangeSSLInternalState(); | |
199 break; | |
200 default: | |
201 NOTREACHED() << "The SSLManager received an unexpected notification."; | |
202 } | |
203 } | |
204 | |
205 void SSLManager::DidLoadFromMemoryCache(LoadFromMemoryCacheDetails* details) { | |
206 // Simulate loading this resource through the usual path. | |
207 // Note that we specify SUB_RESOURCE as the resource type as WebCore only | |
208 // caches sub-resources. | |
209 // This resource must have been loaded with no filtering because filtered | |
210 // resouces aren't cachable. | |
211 scoped_refptr<SSLRequestInfo> info(new SSLRequestInfo( | |
212 details->url(), | |
213 ResourceType::SUB_RESOURCE, | |
214 details->pid(), | |
215 details->ssl_cert_id(), | |
216 details->ssl_cert_status())); | |
217 | |
218 // Simulate loading this resource through the usual path. | |
219 policy()->OnRequestStarted(info.get()); | |
220 } | |
221 | |
222 void SSLManager::DidStartResourceResponse(ResourceRequestDetails* details) { | |
223 scoped_refptr<SSLRequestInfo> info(new SSLRequestInfo( | |
224 details->url(), | |
225 details->resource_type(), | |
226 details->origin_child_id(), | |
227 details->ssl_cert_id(), | |
228 details->ssl_cert_status())); | |
229 | |
230 // Notify our policy that we started a resource request. Ideally, the | |
231 // policy should have the ability to cancel the request, but we can't do | |
232 // that yet. | |
233 policy()->OnRequestStarted(info.get()); | |
234 } | |
235 | |
236 void SSLManager::DidReceiveResourceRedirect(ResourceRedirectDetails* details) { | |
237 // TODO(abarth): Make sure our redirect behavior is correct. If we ever see a | |
238 // non-HTTPS resource in the redirect chain, we want to trigger | |
239 // insecure content, even if the redirect chain goes back to | |
240 // HTTPS. This is because the network attacker can redirect the | |
241 // HTTP request to https://attacker.com/payload.js. | |
242 } | |
243 | |
244 void SSLManager::DidChangeSSLInternalState() { | |
245 UpdateEntry(controller_->GetActiveEntry()); | |
246 } | |
247 | |
248 void SSLManager::UpdateEntry(NavigationEntry* entry) { | |
249 // We don't always have a navigation entry to update, for example in the | |
250 // case of the Web Inspector. | |
251 if (!entry) | |
252 return; | |
253 | |
254 NavigationEntry::SSLStatus original_ssl_status = entry->ssl(); // Copy! | |
255 | |
256 policy()->UpdateEntry(entry, controller_->tab_contents()); | |
257 | |
258 if (!entry->ssl().Equals(original_ssl_status)) { | |
259 NotificationService::current()->Notify( | |
260 NotificationType::SSL_VISIBLE_STATE_CHANGED, | |
261 Source<NavigationController>(controller_), | |
262 NotificationService::NoDetails()); | |
263 } | |
264 } | |
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