[BB10-internal] SSL: Implement session sharing and use it from QNetworkAccessManager

This improves performance since a network round trip can be avoided.

Change-Id: I1aaff7e48ef9638cb137de0f43942c3a4dd2884a
Initial-patch-by: Markus Goetz <markus@woboq.com>
Reviewed-by: Richard J. Moore <rich@kde.org>

Author: Marcel Krems <m.krems@software-vision.eu>
Date:   Thu Feb 7 05:24:52 2013 +0100
SSL: Use correct signature for SSL_get1_session

This fixes a compilation error with GCC 4.7
which was introduced in b5652df775efbd1c52eecee5f08e40e600e5d70b
In function ‘SSL_SESSION* q_SSL_get1_session(const SSL*)’:
invalid conversion from ‘const SSL* {aka const ssl_st*}’ to ‘SSL* {aka ssl_st*}’ [-fpermissive]

Change-Id: I909f7fb4295b2019283a7af66a038d4711e5f7cb
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Peter Hartmann <phartmann@rim.com>

(backport of b5652df775efbd1c52eecee5f08e40e600e5d70b and
9b5ec67c18cba4e7b0b8a4d5c8c52b64da7549a9 squashed together)

Signed-off-by: Peter Hartmann <phartmann@rim.com>

1 files changed, 88 insertions, 0 deletions

diff --git a/src/network/ssl/qsslcontext_p.h b/src/network/ssl/qsslcontext_p.h
new file mode 100644
index 0000000000..7f2fc4bc9c
--- /dev/null
+++ b/src/network/ssl/qsslcontext_p.h
@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtNetwork 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#ifndef QSSLCONTEXT_H
+#define QSSLCONTEXT_H
+
+#include <QtCore/qvariant.h>
+#include <QtNetwork/qsslcertificate.h>
+#include <QtNetwork/qsslconfiguration.h>
+#include <openssl/ssl.h>
+
+QT_BEGIN_NAMESPACE
+
+#ifndef QT_NO_OPENSSL
+
+class QSslContextPrivate;
+
+class QSslContext
+{
+public:
+
+    ~QSslContext();
+
+    static QSslContext* fromConfiguration(QSslSocket::SslMode mode, const QSslConfiguration &configuration,
+                                          bool allowRootCertOnDemandLoading);
+
+    QSslError::SslError error() const;
+    QString errorString() const;
+
+    SSL* createSsl();
+    bool cacheSession(SSL*); // should be called when handshake completed
+
+protected:
+    QSslContext();
+
+private:
+    SSL_CTX* ctx;
+    EVP_PKEY *pkey;
+    SSL_SESSION *session;
+    QSslError::SslError errorCode;
+    QString errorStr;
+    QSslConfiguration sslConfiguration;
+};
+
+#endif // QT_NO_OPENSSL
+
+QT_END_NAMESPACE
+
+#endif // QSSLCONTEXT_H