middleware/xmpp: add an example

- this is a minimal qt client that can be used with a jabber/xmpp server
- have a look at the README file for the test setup

Signed-off-by: Manuel Traut <manut@mecka.net>

5 files changed, 116 insertions, 0 deletions

diff --git a/frameworks/middleware/examples/xmpp/README b/frameworks/middleware/examples/xmpp/README
new file mode 100644
index 0000000..ef147ce
--- /dev/null
+++ b/frameworks/middleware/examples/xmpp/README
@@ -0,0 +1,28 @@
+a) apt-get install libqxmpp-dev psi ejabberd
+
+b) edit /etc/ejabberd/ejabberd.cfg to allow inband registration:
+
+   --8<---
+   %% No username can be registered via in-band registration:
+   %% To enable in-band registration, replace 'deny' with 'allow'
+   % (note that if you remove mod_register from modules list then users will not
+   % be able to change their password as well as register).
+   % This setting is default because it's more safe.
+   {access, register, [{allow, all}]}.
+   --8<---
+
+c) start psi and configure it to use 'localhost' as server and create two
+    accounts: <yourname>:<yourpass>
+              qtapp:test
+
+d) login with <yourname> and qtapp, add both accounts to their contact list,
+    and try to send messages. logoff the qtapp account.
+
+e) build the qt client application and start it:
+
+qmake
+make
+./client
+
+f) the qtapp account needs now to be online in psi, write a messagte to qtapp
+    the message should be displayed in the commandline
diff --git a/frameworks/middleware/examples/xmpp/client.cpp b/frameworks/middleware/examples/xmpp/client.cpp
new file mode 100644
index 0000000..9390438
--- /dev/null
+++ b/frameworks/middleware/examples/xmpp/client.cpp
@@ -0,0 +1,24 @@
+/*
+* Copyright (C) 2008-2010 Manjeet Dahiya
+*
+* Author:
+*    Manjeet Dahiya
+*    modified 2014 by Manuel Traut <manut@linutronix.de>
+*/
+
+#include <QtCore/QCoreApplication>
+
+//#include <qxmpp/QXmppLogger.h>
+
+#include "myclient.h"
+
+int main(int argc, char *argv[])
+{
+    QCoreApplication a(argc, argv);
+    // QXmppLogger::getLogger()->setLoggingType(QXmppLogger::StdoutLogging);
+
+    MyClient client;
+    client.connectToServer("qtapp@localhost", "test");
+
+    return a.exec();
+}
diff --git a/frameworks/middleware/examples/xmpp/myclient.cpp b/frameworks/middleware/examples/xmpp/myclient.cpp
new file mode 100644
index 0000000..fa28603
--- /dev/null
+++ b/frameworks/middleware/examples/xmpp/myclient.cpp
@@ -0,0 +1,32 @@
+/*
+* Copyright (C) 2008-2010 Manjeet Dahiya
+*
+* Author:
+*    Manjeet Dahiya
+*
+* modified 2014 by Manuel Traut <manut@linutronix.de>
+*/
+
+#include <qxmpp/QXmppMessage.h>
+#include <iostream>
+
+#include "myclient.h"
+
+MyClient::MyClient() : QXmppClient()
+{
+    bool check = connect(this,
+                         SIGNAL(messageReceived(QXmppMessage)),
+                         SLOT(message_rx(QXmppMessage)));
+    Q_ASSERT(check);
+    Q_UNUSED(check);
+}
+
+MyClient::~MyClient() { ; }
+
+void MyClient::message_rx(const QXmppMessage& message)
+{
+    QString from = message.from();
+    QString msg = message.body();
+    std::cout<<from.toStdString()<<": "<<msg.toStdString()<<std::endl;
+    sendPacket(QXmppMessage("", from, "you mean " + msg + "??"));
+}
diff --git a/frameworks/middleware/examples/xmpp/myclient.h b/frameworks/middleware/examples/xmpp/myclient.h
new file mode 100644
index 0000000..22d864c
--- /dev/null
+++ b/frameworks/middleware/examples/xmpp/myclient.h
@@ -0,0 +1,17 @@
+#ifndef CLIENT_H
+#define CLIENT_H
+
+#include <qxmpp/QXmppClient.h>
+
+class MyClient : public QXmppClient
+{
+    Q_OBJECT
+public:
+    MyClient();
+    ~MyClient();
+
+public slots:
+    void message_rx(const QXmppMessage&);
+};
+
+#endif
diff --git a/frameworks/middleware/examples/xmpp/xmpp.pro b/frameworks/middleware/examples/xmpp/xmpp.pro
new file mode 100644
index 0000000..7f0be00
--- /dev/null
+++ b/frameworks/middleware/examples/xmpp/xmpp.pro
@@ -0,0 +1,15 @@
+######################################################################
+# Automatically generated by qmake (2.01a) Tue Feb 18 19:47:09 2014
+######################################################################
+
+TEMPLATE = app
+TARGET = client
+DEPENDPATH += .
+INCLUDEPATH += .
+
+# Input
+SOURCES += client.cpp myclient.cpp
+HEADERS += myclient.h
+
+QT += network
+LIBS += -lqxmpp