content/browser/ssl/ssl_manager.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 "content/browser/ssl/ssl_manager.h"
   6
   7 #include <set>
   8
   9 #include "base/bind.h"
  10 #include "base/strings/utf_string_conversions.h"
  11 #include "base/supports_user_data.h"
  12 #include "content/browser/frame_host/navigation_entry_impl.h"
  13 #include "content/browser/loader/resource_dispatcher_host_impl.h"
  14 #include "content/browser/loader/resource_request_info_impl.h"
  15 #include "content/browser/ssl/ssl_cert_error_handler.h"
  16 #include "content/browser/ssl/ssl_policy.h"
  17 #include "content/browser/ssl/ssl_request_info.h"
  18 #include "content/browser/web_contents/web_contents_impl.h"
  19 #include "content/common/ssl_status_serialization.h"
  20 #include "content/public/browser/browser_context.h"
  21 #include "content/public/browser/browser_thread.h"
  22 #include "content/public/browser/load_from_memory_cache_details.h"
  23 #include "content/public/browser/navigation_details.h"
  24 #include "content/public/browser/resource_request_details.h"
  25 #include "content/public/common/ssl_status.h"
  26 #include "net/url_request/url_request.h"
  27
  28 namespace content {
  29
  30 namespace {
  31
  32 const char kSSLManagerKeyName[] = "content_ssl_manager";
  33
  34 class SSLManagerSet : public base::SupportsUserData::Data {
  35  public:
  36   SSLManagerSet() {
  37   }
  38
  39   std::set<SSLManager*>& get() { return set_; }
  40
  41  private:
  42   std::set<SSLManager*> set_;
  43
  44   DISALLOW_COPY_AND_ASSIGN(SSLManagerSet);
  45 };
  46
  47 }  // namespace
  48
  49 // static
  50 void SSLManager::OnSSLCertificateError(
  51     const base::WeakPtr<SSLErrorHandler::Delegate>& delegate,
  52     const ResourceType resource_type,
  53     const GURL& url,
  54     int render_process_id,
  55     int render_frame_id,
  56     const net::SSLInfo& ssl_info,
  57     bool fatal) {
  58   DCHECK(delegate.get());
  59   DVLOG(1) << "OnSSLCertificateError() cert_error: "
  60            << net::MapCertStatusToNetError(ssl_info.cert_status)
  61            << " resource_type: " << resource_type
  62            << " url: " << url.spec()
  63            << " render_process_id: " << render_process_id
  64            << " render_frame_id: " << render_frame_id
  65            << " cert_status: " << std::hex << ssl_info.cert_status;
  66
  67   // A certificate error occurred.  Construct a SSLCertErrorHandler object and
  68   // hand it over to the UI thread for processing.
  69   BrowserThread::PostTask(
  70       BrowserThread::UI, FROM_HERE,
  71       base::Bind(&SSLCertErrorHandler::Dispatch,
  72                  new SSLCertErrorHandler(delegate,
  73                                          resource_type,
  74                                          url,
  75                                          render_process_id,
  76                                          render_frame_id,
  77                                          ssl_info,
  78                                          fatal)));
  79 }
  80
  81 // static
  82 void SSLManager::NotifySSLInternalStateChanged(BrowserContext* context) {
  83   SSLManagerSet* managers = static_cast<SSLManagerSet*>(
  84       context->GetUserData(kSSLManagerKeyName));
  85
  86   for (std::set<SSLManager*>::iterator i = managers->get().begin();
  87        i != managers->get().end(); ++i) {
  88     (*i)->UpdateEntry(NavigationEntryImpl::FromNavigationEntry(
  89                           (*i)->controller()->GetLastCommittedEntry()));
  90   }
  91 }
  92
  93 SSLManager::SSLManager(NavigationControllerImpl* controller)
  94     : backend_(controller),
  95       policy_(new SSLPolicy(&backend_)),
  96       controller_(controller) {
  97   DCHECK(controller_);
  98
  99   SSLManagerSet* managers = static_cast<SSLManagerSet*>(
 100       controller_->GetBrowserContext()->GetUserData(kSSLManagerKeyName));
 101   if (!managers) {
 102     managers = new SSLManagerSet;
 103     controller_->GetBrowserContext()->SetUserData(kSSLManagerKeyName, managers);
 104   }
 105   managers->get().insert(this);
 106 }
 107
 108 SSLManager::~SSLManager() {
 109   SSLManagerSet* managers = static_cast<SSLManagerSet*>(
 110       controller_->GetBrowserContext()->GetUserData(kSSLManagerKeyName));
 111   managers->get().erase(this);
 112 }
 113
 114 void SSLManager::DidCommitProvisionalLoad(const LoadCommittedDetails& details) {
 115   NavigationEntryImpl* entry =
 116       NavigationEntryImpl::FromNavigationEntry(
 117           controller_->GetLastCommittedEntry());
 118
 119   if (details.is_main_frame) {
 120     if (entry) {
 121       // Decode the security details.
 122       int ssl_cert_id;
 123       net::CertStatus ssl_cert_status;
 124       int ssl_security_bits;
 125       int ssl_connection_status;
 126       SignedCertificateTimestampIDStatusList
 127           ssl_signed_certificate_timestamp_ids;
 128       DeserializeSecurityInfo(details.serialized_security_info,
 129                               &ssl_cert_id,
 130                               &ssl_cert_status,
 131                               &ssl_security_bits,
 132                               &ssl_connection_status,
 133                               &ssl_signed_certificate_timestamp_ids);
 134
 135       // We may not have an entry if this is a navigation to an initial blank
 136       // page. Reset the SSL information and add the new data we have.
 137       entry->GetSSL() = SSLStatus();
 138       entry->GetSSL().cert_id = ssl_cert_id;
 139       entry->GetSSL().cert_status = ssl_cert_status;
 140       entry->GetSSL().security_bits = ssl_security_bits;
 141       entry->GetSSL().connection_status = ssl_connection_status;
 142       entry->GetSSL().signed_certificate_timestamp_ids =
 143           ssl_signed_certificate_timestamp_ids;
 144     }
 145   }
 146
 147   UpdateEntry(entry);
 148 }
 149
 150 void SSLManager::DidDisplayInsecureContent() {
 151   UpdateEntry(
 152       NavigationEntryImpl::FromNavigationEntry(
 153           controller_->GetLastCommittedEntry()));
 154 }
 155
 156 void SSLManager::DidRunInsecureContent(const std::string& security_origin) {
 157   NavigationEntryImpl* navigation_entry =
 158       NavigationEntryImpl::FromNavigationEntry(
 159           controller_->GetLastCommittedEntry());
 160   policy()->DidRunInsecureContent(navigation_entry, security_origin);
 161   UpdateEntry(navigation_entry);
 162 }
 163
 164 void SSLManager::DidLoadFromMemoryCache(
 165     const LoadFromMemoryCacheDetails& details) {
 166   // Simulate loading this resource through the usual path.
 167   // Note that we specify SUB_RESOURCE as the resource type as WebCore only
 168   // caches sub-resources.
 169   // This resource must have been loaded with no filtering because filtered
 170   // resouces aren't cachable.
 171   scoped_refptr<SSLRequestInfo> info(new SSLRequestInfo(
 172       details.url,
 173       RESOURCE_TYPE_SUB_RESOURCE,
 174       details.pid,
 175       details.cert_id,
 176       details.cert_status));
 177
 178   // Simulate loading this resource through the usual path.
 179   policy()->OnRequestStarted(info.get());
 180 }
 181
 182 void SSLManager::DidStartResourceResponse(
 183     const ResourceRequestDetails& details) {
 184   scoped_refptr<SSLRequestInfo> info(new SSLRequestInfo(
 185       details.url,
 186       details.resource_type,
 187       details.origin_child_id,
 188       details.ssl_cert_id,
 189       details.ssl_cert_status));
 190
 191   // Notify our policy that we started a resource request.  Ideally, the
 192   // policy should have the ability to cancel the request, but we can't do
 193   // that yet.
 194   policy()->OnRequestStarted(info.get());
 195 }
 196
 197 void SSLManager::DidReceiveResourceRedirect(
 198     const ResourceRedirectDetails& details) {
 199   // TODO(abarth): Make sure our redirect behavior is correct.  If we ever see a
 200   //               non-HTTPS resource in the redirect chain, we want to trigger
 201   //               insecure content, even if the redirect chain goes back to
 202   //               HTTPS.  This is because the network attacker can redirect the
 203   //               HTTP request to https://attacker.com/payload.js.
 204 }
 205
 206 void SSLManager::UpdateEntry(NavigationEntryImpl* entry) {
 207   // We don't always have a navigation entry to update, for example in the
 208   // case of the Web Inspector.
 209   if (!entry)
 210     return;
 211
 212   SSLStatus original_ssl_status = entry->GetSSL();  // Copy!
 213
 214   WebContentsImpl* contents =
 215       static_cast<WebContentsImpl*>(controller_->delegate()->GetWebContents());
 216   policy()->UpdateEntry(entry, contents);
 217
 218   if (!entry->GetSSL().Equals(original_ssl_status))
 219     contents->DidChangeVisibleSSLState();
 220 }
 221
 222 }  // namespace content