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// 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 "content/browser/ssl/ssl_client_auth_handler.h"
#include "base/bind.h"
#include "base/logging.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/resource_request_info.h"
#include "net/cert/x509_certificate.h"
#include "net/ssl/client_cert_store.h"
#include "net/url_request/url_request.h"
namespace content {
namespace {
void CertificateSelectedOnUIThread(
const SSLClientAuthHandler::CertificateCallback& io_thread_callback,
net::X509Certificate* cert) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::Bind(io_thread_callback, make_scoped_refptr(cert)));
}
void SelectCertificateOnUIThread(
int render_process_host_id,
int render_frame_host_id,
net::SSLCertRequestInfo* cert_request_info,
const SSLClientAuthHandler::CertificateCallback& io_thread_callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
GetContentClient()->browser()->SelectClientCertificate(
render_process_host_id, render_frame_host_id, cert_request_info,
base::Bind(&CertificateSelectedOnUIThread, io_thread_callback));
}
} // namespace
// A reference-counted core to allow the ClientCertStore and SSLCertRequestInfo
// to outlive SSLClientAuthHandler if needbe.
class SSLClientAuthHandler::Core : public base::RefCountedThreadSafe<Core> {
public:
Core(const base::WeakPtr<SSLClientAuthHandler>& handler,
scoped_ptr<net::ClientCertStore> client_cert_store,
net::SSLCertRequestInfo* cert_request_info)
: handler_(handler),
client_cert_store_(client_cert_store.Pass()),
cert_request_info_(cert_request_info) {}
bool has_client_cert_store() const { return client_cert_store_; }
void GetClientCerts() {
if (client_cert_store_) {
// TODO(davidben): This is still a cyclical ownership where
// GetClientCerts' requirement that |client_cert_store_| remains alive
// until the call completes is maintained by the reference held in the
// callback.
client_cert_store_->GetClientCerts(
*cert_request_info_, &cert_request_info_->client_certs,
base::Bind(&SSLClientAuthHandler::Core::DidGetClientCerts, this));
} else {
DidGetClientCerts();
}
}
private:
friend class base::RefCountedThreadSafe<Core>;
~Core() {}
// Called when |client_cert_store_| is done retrieving the cert list.
void DidGetClientCerts() {
if (handler_)
handler_->DidGetClientCerts();
}
base::WeakPtr<SSLClientAuthHandler> handler_;
scoped_ptr<net::ClientCertStore> client_cert_store_;
scoped_refptr<net::SSLCertRequestInfo> cert_request_info_;
};
SSLClientAuthHandler::SSLClientAuthHandler(
scoped_ptr<net::ClientCertStore> client_cert_store,
net::URLRequest* request,
net::SSLCertRequestInfo* cert_request_info,
const SSLClientAuthHandler::CertificateCallback& callback)
: request_(request),
cert_request_info_(cert_request_info),
callback_(callback),
weak_factory_(this) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
core_ = new Core(weak_factory_.GetWeakPtr(), client_cert_store.Pass(),
cert_request_info_.get());
}
SSLClientAuthHandler::~SSLClientAuthHandler() {
}
void SSLClientAuthHandler::SelectCertificate() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// |core_| will call DidGetClientCerts when done.
core_->GetClientCerts();
}
void SSLClientAuthHandler::DidGetClientCerts() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// Note that if |client_cert_store_| is NULL, we intentionally fall through to
// DoCertificateSelected. This is for platforms where the client cert matching
// is not performed by Chrome. Those platforms handle the cert matching before
// showing the dialog.
if (core_->has_client_cert_store() &&
cert_request_info_->client_certs.empty()) {
// No need to query the user if there are no certs to choose from.
CertificateSelected(NULL);
return;
}
int render_process_host_id;
int render_frame_host_id;
if (!ResourceRequestInfo::ForRequest(request_)->GetAssociatedRenderFrame(
&render_process_host_id, &render_frame_host_id)) {
NOTREACHED();
CertificateSelected(NULL);
return;
}
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&SelectCertificateOnUIThread, render_process_host_id,
render_frame_host_id, cert_request_info_,
base::Bind(&SSLClientAuthHandler::CertificateSelected,
weak_factory_.GetWeakPtr())));
}
void SSLClientAuthHandler::CertificateSelected(net::X509Certificate* cert) {
DVLOG(1) << this << " DoCertificateSelected " << cert;
DCHECK_CURRENTLY_ON(BrowserThread::IO);
callback_.Run(cert);
// |this| may be deleted at this point.
}
} // namespace content
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