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// Copyright (c) 2011 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 "content/browser/ssl/ssl_client_auth_handler.h"
#include "base/bind.h"
#include "content/browser/renderer_host/resource_dispatcher_host.h"
#include "content/browser/renderer_host/resource_dispatcher_host_request_info.h"
#include "content/browser/ssl/ssl_client_auth_notification_details.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/notification_service.h"
#include "net/base/x509_certificate.h"
#include "net/http/http_transaction_factory.h"
#include "net/url_request/url_request.h"
#include "net/url_request/url_request_context.h"
using content::BrowserThread;
SSLClientAuthHandler::SSLClientAuthHandler(
net::URLRequest* request,
net::SSLCertRequestInfo* cert_request_info)
: request_(request),
http_network_session_(
request_->context()->http_transaction_factory()->GetSession()),
cert_request_info_(cert_request_info) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
}
SSLClientAuthHandler::~SSLClientAuthHandler() {
// If we were simply dropped, then act as if we selected no certificate.
DoCertificateSelected(NULL);
}
void SSLClientAuthHandler::OnRequestCancelled() {
request_ = NULL;
}
void SSLClientAuthHandler::SelectCertificate() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
int render_process_host_id;
int render_view_host_id;
if (!ResourceDispatcherHost::RenderViewForRequest(request_,
&render_process_host_id,
&render_view_host_id))
NOTREACHED();
// If the RVH does not exist by the time this task gets run, then the task
// will be dropped and the scoped_refptr to SSLClientAuthHandler will go
// away, so we do not leak anything. The destructor takes care of ensuring
// the net::URLRequest always gets a response.
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(
&SSLClientAuthHandler::DoSelectCertificate, this,
render_process_host_id, render_view_host_id));
}
// Sends an SSL_CLIENT_AUTH_CERT_SELECTED notification and notifies the IO
// thread that we have selected a cert.
void SSLClientAuthHandler::CertificateSelected(net::X509Certificate* cert) {
VLOG(1) << this << " CertificateSelected " << cert;
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
SSLClientAuthNotificationDetails details(cert_request_info_, this, cert);
content::NotificationService* service =
content::NotificationService::current();
service->Notify(content::NOTIFICATION_SSL_CLIENT_AUTH_CERT_SELECTED,
content::Source<net::HttpNetworkSession>(
http_network_session()),
content::Details<SSLClientAuthNotificationDetails>(&details));
CertificateSelectedNoNotify(cert);
}
// Notifies the IO thread that we have selected a cert.
void SSLClientAuthHandler::CertificateSelectedNoNotify(
net::X509Certificate* cert) {
VLOG(1) << this << " CertificateSelectedNoNotify " << cert;
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::Bind(
&SSLClientAuthHandler::DoCertificateSelected, this,
make_scoped_refptr(cert)));
}
void SSLClientAuthHandler::DoCertificateSelected(net::X509Certificate* cert) {
VLOG(1) << this << " DoCertificateSelected " << cert;
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
// request_ could have been NULLed if the request was cancelled while the
// user was choosing a cert, or because we have already responded to the
// certificate.
if (request_) {
request_->ContinueWithCertificate(cert);
ResourceDispatcherHostRequestInfo* info =
ResourceDispatcherHost::InfoForRequest(request_);
if (info)
info->set_ssl_client_auth_handler(NULL);
request_ = NULL;
}
}
void SSLClientAuthHandler::DoSelectCertificate(
int render_process_host_id, int render_view_host_id) {
content::GetContentClient()->browser()->SelectClientCertificate(
render_process_host_id, render_view_host_id, this);
}
SSLClientAuthObserver::SSLClientAuthObserver(
net::SSLCertRequestInfo* cert_request_info,
SSLClientAuthHandler* handler)
: cert_request_info_(cert_request_info), handler_(handler) {
}
SSLClientAuthObserver::~SSLClientAuthObserver() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
}
void SSLClientAuthObserver::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
VLOG(1) << "SSLClientAuthObserver::Observe " << this << " " << handler_.get();
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(type == content::NOTIFICATION_SSL_CLIENT_AUTH_CERT_SELECTED);
SSLClientAuthNotificationDetails* auth_details =
content::Details<SSLClientAuthNotificationDetails>(details).ptr();
if (auth_details->IsSameHandler(handler_.get())) {
VLOG(1) << "got notification from ourself " << handler_.get();
return;
}
if (!auth_details->IsSameHost(cert_request_info_))
return;
VLOG(1) << this << " got matching notification for "
<< handler_.get() << ", selecting cert "
<< auth_details->selected_cert();
StopObserving();
handler_->CertificateSelectedNoNotify(auth_details->selected_cert());
OnCertSelectedByNotification();
}
void SSLClientAuthObserver::StartObserving() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
notification_registrar_.Add(
this, content::NOTIFICATION_SSL_CLIENT_AUTH_CERT_SELECTED,
content::Source<net::HttpNetworkSession>(
handler_->http_network_session()));
}
void SSLClientAuthObserver::StopObserving() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
notification_registrar_.RemoveAll();
}
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