Add HTTP and proxy authentication signals directly to QWebEnginePage

This allows handling calls that would be signaled by QNetworkAccessManager
in QtWebKit.
This pulls QtNetwork as a dependency of the QtWebEngineWidgets module
to be able to use QAuthenticator, but isn't required otherwise.

Only the request URL is available in the case of HTTP authentication
(no access to HTTP request headers that the QNetworkReply would allow)
and only the proxy host name in the case case of proxy authentication.

This keeps the API synchronous the same way, as QtWebKit did, in
favor of source compatibility at the cost of requiring a modal
dialog, even though the implementation doesn't require it.

Change-Id: I9e021def38e6107c9e66d2de8f86bd0328d543df
Reviewed-by: Michael Bruning <michael.bruning@digia.com>

1 files changed, 128 insertions, 0 deletions

diff --git a/src/core/resource_dispatcher_host_delegate_qt.cpp b/src/core/resource_dispatcher_host_delegate_qt.cpp
new file mode 100644
index 000000000..3e650afb7
--- /dev/null
+++ b/src/core/resource_dispatcher_host_delegate_qt.cpp
@@ -0,0 +1,128 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtWebEngine module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// Copyright 2013 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 "resource_dispatcher_host_delegate_qt.h"
+
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/render_view_host.h"
+#include "content/public/browser/resource_dispatcher_host.h"
+#include "content/public/browser/resource_request_info.h"
+#include "net/url_request/url_request.h"
+
+#include "type_conversion.h"
+#include "web_contents_view_qt.h"
+
+ResourceDispatcherHostLoginDelegateQt::ResourceDispatcherHostLoginDelegateQt(net::AuthChallengeInfo *authInfo, net::URLRequest *request)
+    : m_request(request)
+{
+    Q_ASSERT(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
+    content::ResourceRequestInfo::ForRequest(request)->GetAssociatedRenderView(&m_renderProcessId,  &m_renderViewId);
+
+    m_url = toQt(request->url());
+    m_realm = QString::fromStdString(authInfo->realm);
+    m_isProxy = authInfo->is_proxy;
+    m_host = QString::fromStdString(authInfo->challenger.ToString());
+
+    content::BrowserThread::PostTask(
+        content::BrowserThread::UI, FROM_HERE,
+        base::Bind(&ResourceDispatcherHostLoginDelegateQt::triggerDialog, this));
+}
+
+ResourceDispatcherHostLoginDelegateQt::~ResourceDispatcherHostLoginDelegateQt()
+{
+    // We must have called ClearLoginDelegateForRequest if we didn't receive an OnRequestCancelled.
+    Q_ASSERT(!m_request);
+}
+
+void ResourceDispatcherHostLoginDelegateQt::OnRequestCancelled()
+{
+    m_request = 0;
+}
+
+void ResourceDispatcherHostLoginDelegateQt::triggerDialog()
+{
+    Q_ASSERT(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+    content::RenderViewHost* renderViewHost = content::RenderViewHost::FromID(m_renderProcessId, m_renderViewId);
+    content::WebContents *webContents = content::WebContents::FromRenderViewHost(renderViewHost);
+    WebContentsAdapterClient *client = WebContentsViewQt::from(webContents->GetView())->client();
+
+    // The widgets API will ask for credentials synchronouly, keep it simple for now.
+    // We'll have to figure out a mechanism to keep a ref to the ResourceDispatcherHostLoginDelegateQt
+    // to avoid crashing in the OnRequestCancelled case if we want to allow the credentials to
+    // come back asynchronously in the QtQuick API.
+    QString user, password;
+    client->authenticationRequired(m_url , m_realm , m_isProxy , m_host, &user, &password);
+
+    bool success = !user.isEmpty() || !password.isEmpty();
+    content::BrowserThread::PostTask(
+        content::BrowserThread::IO, FROM_HERE,
+        base::Bind(&ResourceDispatcherHostLoginDelegateQt::sendAuthToRequester, this, success, user, password));
+}
+
+void ResourceDispatcherHostLoginDelegateQt::sendAuthToRequester(bool success, const QString &user, const QString &password)
+{
+    Q_ASSERT(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
+    if (!m_request)
+        return;
+
+    if (success)
+        m_request->SetAuth(net::AuthCredentials(toString16(user), toString16(password)));
+    else
+        m_request->CancelAuth();
+    content::ResourceDispatcherHost::Get()->ClearLoginDelegateForRequest(m_request);
+
+    m_request = 0;
+}
+
+bool ResourceDispatcherHostDelegateQt::AcceptAuthRequest(net::URLRequest *, net::AuthChallengeInfo *)
+{
+    return true;
+}
+
+content::ResourceDispatcherHostLoginDelegate *ResourceDispatcherHostDelegateQt::CreateLoginDelegate(net::AuthChallengeInfo *authInfo, net::URLRequest *request)
+{
+    // ResourceDispatcherHostLoginDelegateQt is ref-counted and will be released after we called ClearLoginDelegateForRequest.
+    return new ResourceDispatcherHostLoginDelegateQt(authInfo, request);
+}