Merge pull request #88 from fbeutel/carbons

* Implemented XEP-0280: Message Carbons

1 files changed, 115 insertions, 0 deletions

diff --git a/src/client/QXmppCarbonsManager.cpp b/src/client/QXmppCarbonsManager.cpp
new file mode 100644
index 00000000..f09e149c
--- /dev/null
+++ b/src/client/QXmppCarbonsManager.cpp
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2008-2014 The QXmpp developers
+ *
+ * Author:
+ *  Manjeet Dahiya
+ *
+ * Source:
+ *  https://github.com/qxmpp-project/qxmpp
+ *
+ * This file is a part of QXmpp library.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ */
+
+#include <QDomElement>
+
+#include "QXmppCarbonsManager.h"
+#include "QXmppConstants.h"
+#include "QXmppClient.h"
+#include "QXmppDiscoveryManager.h"
+#include "QXmppMessage.h"
+#include "QXmppUtils.h"
+
+
+QXmppCarbonsManager::QXmppCarbonsManager()
+    : m_carbonsEnabled(false)
+{
+
+}
+
+QXmppCarbonsManager::~QXmppCarbonsManager()
+{
+
+}
+
+/// Returns whether message carbons are currently enabled
+
+bool QXmppCarbonsManager::carbonsEnabled() const
+{
+    return m_carbonsEnabled;
+}
+
+/// Enable or disable message carbons.
+/// This function does not check whether the server supports
+/// message carbons, but just sends the corresponding stanza
+/// to the server, so one must check in advance by using the
+/// discovery manager.
+///
+/// By default, carbon copies are disabled.
+
+void QXmppCarbonsManager::setCarbonsEnabled(bool enabled)
+{
+    if(m_carbonsEnabled == enabled)
+        return;
+
+    m_carbonsEnabled = enabled;
+
+    if(client()) {
+        QXmppIq iq(QXmppIq::Set);
+        QXmppElement carbonselement;
+        carbonselement.setTagName(m_carbonsEnabled ? "enable" : "disable");
+        carbonselement.setAttribute("xmlns", ns_carbons);
+
+        iq.setExtensions(QXmppElementList() << carbonselement);
+        client()->sendPacket(iq);
+    }
+}
+
+QStringList QXmppCarbonsManager::discoveryFeatures() const
+{
+    return QStringList() << ns_carbons;
+}
+
+bool QXmppCarbonsManager::handleStanza(const QDomElement &element)
+{
+    if(element.tagName() != "message")
+        return false;
+
+    bool sent = true;
+    QDomElement carbon = element.firstChildElement("sent");
+    if(carbon.isNull()) {
+        carbon = element.firstChildElement("received");
+        sent = false;
+    }
+
+    if(carbon.isNull() || carbon.namespaceURI() != ns_carbons)
+        return false;   // Neither sent nor received -> no carbon message
+
+    QDomElement forwarded = carbon.firstChildElement("forwarded");
+    if(forwarded.isNull())
+        return false;
+
+    QDomElement messageelement = forwarded.firstChildElement("message");
+    if(messageelement.isNull())
+        return false;
+
+    QXmppMessage message;
+    message.parse(messageelement);
+
+    if(sent)
+        emit messageSent(message);
+    else
+        emit messageReceived(message);
+
+    return true;
+}