Cancel client auth requests when not promptable.

chrome/browser/ssl/ssl_client_auth_observer.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ssl/ssl_client_auth_observer.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "content/public/browser/browser_thread.h"
+#include "content/public/browser/client_certificate_delegate.h"
 #include "content/public/browser/notification_service.h"
 #include "net/cert/x509_certificate.h"
 #include "net/ssl/ssl_cert_request_info.h"
 
 using content::BrowserThread;
 
 typedef std::pair<net::SSLCertRequestInfo*, net::X509Certificate*> CertDetails;
 
 SSLClientAuthObserver::SSLClientAuthObserver(
     const content::BrowserContext* browser_context,
     const scoped_refptr<net::SSLCertRequestInfo>& cert_request_info,
-    const base::Callback<void(net::X509Certificate*)>& callback)
+    scoped_ptr<content::ClientCertificateDelegate> delegate)
     : browser_context_(browser_context),
       cert_request_info_(cert_request_info),
-      callback_(callback) {
+      delegate_(delegate.Pass()) {
 }
 
 SSLClientAuthObserver::~SSLClientAuthObserver() {
 }
 
 void SSLClientAuthObserver::CertificateSelected(
     net::X509Certificate* certificate) {
-  if (callback_.is_null())
+  if (!delegate_)
     return;
 
   // Stop listening right away so we don't get our own notification.
   StopObserving();
 
   CertDetails details;
   details.first = cert_request_info_.get();
   details.second = certificate;
   content::NotificationService* service =
       content::NotificationService::current();
   service->Notify(chrome::NOTIFICATION_SSL_CLIENT_AUTH_CERT_SELECTED,
                   content::Source<content::BrowserContext>(browser_context_),
                   content::Details<CertDetails>(&details));
 
-  callback_.Run(certificate);
-  callback_.Reset();
+  delegate_->ContinueWithCertificate(certificate);
+  delegate_.reset();
+}
+
+void SSLClientAuthObserver::CancelCertificateSelection() {
+  if (!delegate_)
+    return;
+
+  // Stop listening right away so we don't get our own notification.

[mmenke, 2015/02/13 19:35:53]

I don't think there is a notification here.  Should there be?

[davidben, 2015/02/13 22:04:11]

There shouldn't be. SSLClientAuthObserver is a (somewhat wonky) way to close all
dialogs when one is resolved. I've revised the comment. Stopping observing is I
think still reasonable becaues the delegate has now been called.

+  StopObserving();
+
+  delegate_->CancelCertificateSelection();
+  delegate_.reset();
 }
 
 void SSLClientAuthObserver::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   DVLOG(1) << "SSLClientAuthObserver::Observe " << this;
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(type == chrome::NOTIFICATION_SSL_CLIENT_AUTH_CERT_SELECTED);
 
   CertDetails* cert_details = content::Details<CertDetails>(details).ptr();
   if (!cert_details->first->host_and_port.Equals(
            cert_request_info_->host_and_port))
     return;
 
   DVLOG(1) << this << " got matching notification and selecting cert "
            << cert_details->second;
   StopObserving();
-  callback_.Run(cert_details->second);
-  callback_.Reset();
+  delegate_->ContinueWithCertificate(cert_details->second);
+  delegate_.reset();
   OnCertSelectedByNotification();
 }
 
 void SSLClientAuthObserver::StartObserving() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   notification_registrar_.Add(
       this, chrome::NOTIFICATION_SSL_CLIENT_AUTH_CERT_SELECTED,
       content::Source<content::BrowserContext>(browser_context_));
 }
 
 void SSLClientAuthObserver::StopObserving() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   notification_registrar_.RemoveAll();
 }