content/browser/ssl/ssl_error_handler.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_error_handler.h"
   6
   7 #include "base/bind.h"
   8 #include "content/browser/frame_host/navigation_controller_impl.h"
   9 #include "content/browser/frame_host/render_frame_host_impl.h"
  10 #include "content/browser/ssl/ssl_cert_error_handler.h"
  11 #include "content/browser/web_contents/web_contents_impl.h"
  12 #include "content/public/browser/browser_thread.h"
  13 #include "content/public/browser/resource_request_info.h"
  14 #include "net/base/net_errors.h"
  15 #include "net/url_request/url_request.h"
  16
  17 using net::SSLInfo;
  18
  19 namespace content {
  20
  21 SSLErrorHandler::SSLErrorHandler(const base::WeakPtr<Delegate>& delegate,
  22                                  const GlobalRequestID& id,
  23                                  ResourceType::Type resource_type,
  24                                  const GURL& url,
  25                                  int render_process_id,
  26                                  int render_frame_id)
  27     : manager_(NULL),
  28       request_id_(id),
  29       delegate_(delegate),
  30       render_process_id_(render_process_id),
  31       render_frame_id_(render_frame_id),
  32       request_url_(url),
  33       resource_type_(resource_type),
  34       request_has_been_notified_(false) {
  35   DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::UI));
  36   DCHECK(delegate.get());
  37
  38   // This makes sure we don't disappear on the IO thread until we've given an
  39   // answer to the net::URLRequest.
  40   //
  41   // Release in CompleteCancelRequest, CompleteContinueRequest, or
  42   // CompleteTakeNoAction.
  43   AddRef();
  44 }
  45
  46 SSLErrorHandler::~SSLErrorHandler() {}
  47
  48 void SSLErrorHandler::OnDispatchFailed() {
  49   TakeNoAction();
  50 }
  51
  52 void SSLErrorHandler::OnDispatched() {
  53   TakeNoAction();
  54 }
  55
  56 SSLCertErrorHandler* SSLErrorHandler::AsSSLCertErrorHandler() {
  57   return NULL;
  58 }
  59
  60 void SSLErrorHandler::Dispatch() {
  61   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  62
  63   WebContents* web_contents = NULL;
  64   RenderFrameHost* render_frame_host =
  65       RenderFrameHost::FromID(render_process_id_, render_frame_id_);
  66   web_contents = WebContents::FromRenderFrameHost(render_frame_host);
  67
  68   if (!web_contents) {
  69     // We arrived on the UI thread, but the tab we're looking for is no longer
  70     // here.
  71     OnDispatchFailed();
  72     return;
  73   }
  74
  75   // Hand ourselves off to the SSLManager.
  76   manager_ =
  77       static_cast<NavigationControllerImpl*>(&web_contents->GetController())->
  78           ssl_manager();
  79   OnDispatched();
  80 }
  81
  82 void SSLErrorHandler::CancelRequest() {
  83   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  84
  85   // We need to complete this task on the IO thread.
  86   BrowserThread::PostTask(
  87       BrowserThread::IO, FROM_HERE,
  88       base::Bind(
  89           &SSLErrorHandler::CompleteCancelRequest, this, net::ERR_ABORTED));
  90 }
  91
  92 void SSLErrorHandler::DenyRequest() {
  93   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  94
  95   // We need to complete this task on the IO thread.
  96   BrowserThread::PostTask(
  97       BrowserThread::IO, FROM_HERE,
  98       base::Bind(
  99           &SSLErrorHandler::CompleteCancelRequest, this,
 100           net::ERR_INSECURE_RESPONSE));
 101 }
 102
 103 void SSLErrorHandler::ContinueRequest() {
 104   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 105
 106   // We need to complete this task on the IO thread.
 107   BrowserThread::PostTask(
 108       BrowserThread::IO, FROM_HERE,
 109       base::Bind(&SSLErrorHandler::CompleteContinueRequest, this));
 110 }
 111
 112 void SSLErrorHandler::TakeNoAction() {
 113   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 114
 115   // We need to complete this task on the IO thread.
 116   BrowserThread::PostTask(
 117       BrowserThread::IO, FROM_HERE,
 118       base::Bind(&SSLErrorHandler::CompleteTakeNoAction, this));
 119 }
 120
 121 void SSLErrorHandler::CompleteCancelRequest(int error) {
 122   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 123
 124   // It is important that we notify the net::URLRequest only once.  If we try
 125   // to notify the request twice, it may no longer exist and |this| might have
 126   // already have been deleted.
 127   DCHECK(!request_has_been_notified_);
 128   if (request_has_been_notified_)
 129     return;
 130
 131   SSLCertErrorHandler* cert_error = AsSSLCertErrorHandler();
 132   const SSLInfo* ssl_info = NULL;
 133   if (cert_error)
 134     ssl_info = &cert_error->ssl_info();
 135   if (delegate_.get())
 136     delegate_->CancelSSLRequest(request_id_, error, ssl_info);
 137   request_has_been_notified_ = true;
 138
 139   // We're done with this object on the IO thread.
 140   Release();
 141 }
 142
 143 void SSLErrorHandler::CompleteContinueRequest() {
 144   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 145
 146   // It is important that we notify the net::URLRequest only once. If we try to
 147   // notify the request twice, it may no longer exist and |this| might have
 148   // already have been deleted.
 149   DCHECK(!request_has_been_notified_);
 150   if (request_has_been_notified_)
 151     return;
 152
 153   if (delegate_.get())
 154     delegate_->ContinueSSLRequest(request_id_);
 155   request_has_been_notified_ = true;
 156
 157   // We're done with this object on the IO thread.
 158   Release();
 159 }
 160
 161 void SSLErrorHandler::CompleteTakeNoAction() {
 162   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 163
 164   // It is important that we notify the net::URLRequest only once. If we try to
 165   // notify the request twice, it may no longer exist and |this| might have
 166   // already have been deleted.
 167   DCHECK(!request_has_been_notified_);
 168   if (request_has_been_notified_)
 169     return;
 170
 171   request_has_been_notified_ = true;
 172
 173   // We're done with this object on the IO thread.
 174   Release();
 175 }
 176
 177 }  // namespace content