Add Qt3 development HEAD version

1 files changed, 141 insertions, 0 deletions

diff --git a/examples/network/httpd/httpd.cpp b/examples/network/httpd/httpd.cpp
new file mode 100644
index 0000000..4c40961
--- /dev/null
+++ b/examples/network/httpd/httpd.cpp
@@ -0,0 +1,141 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+#include <stdlib.h>
+#include <qsocket.h>
+#include <qregexp.h>
+#include <qserversocket.h>
+#include <qapplication.h>
+#include <qmainwindow.h>
+#include <qtextstream.h>
+#include <qvbox.h>
+#include <qlabel.h>
+#include <qtextview.h>
+#include <qpushbutton.h>
+
+// HttpDaemon is the the class that implements the simple HTTP server.
+class HttpDaemon : public QServerSocket
+{
+    Q_OBJECT
+public:
+    HttpDaemon( QObject* parent=0 ) :
+	QServerSocket(8080,1,parent)
+    {
+	if ( !ok() ) {
+	    qWarning("Failed to bind to port 8080");
+	    exit( 1 );
+	}
+    }
+
+    void newConnection( int socket )
+    {
+	// When a new client connects, the server constructs a QSocket and all
+	// communication with the client is done over this QSocket. QSocket
+	// works asynchronouslyl, this means that all the communication is done
+	// in the two slots readClient() and discardClient().
+	QSocket* s = new QSocket( this );
+	connect( s, SIGNAL(readyRead()), this, SLOT(readClient()) );
+	connect( s, SIGNAL(delayedCloseFinished()), this, SLOT(discardClient()) );
+	s->setSocket( socket );
+	emit newConnect();
+    }
+
+signals:
+    void newConnect();
+    void endConnect();
+    void wroteToClient();
+
+private slots:
+    void readClient()
+    {
+	// This slot is called when the client sent data to the server. The
+	// server looks if it was a get request and sends a very simple HTML
+	// document back.
+	QSocket* socket = (QSocket*)sender();
+	if ( socket->canReadLine() ) {
+	    QStringList tokens = QStringList::split( QRegExp("[ \r\n][ \r\n]*"), socket->readLine() );
+	    if ( tokens[0] == "GET" ) {
+		QTextStream os( socket );
+		os.setEncoding( QTextStream::UnicodeUTF8 );
+		os << "HTTP/1.0 200 Ok\r\n"
+		    "Content-Type: text/html; charset=\"utf-8\"\r\n"
+		    "\r\n"
+		    "<h1>Nothing to see here</h1>\n";
+		socket->close();
+		emit wroteToClient();
+	    }
+	}
+    }
+    void discardClient()
+    {
+	QSocket* socket = (QSocket*)sender();
+	delete socket;
+	emit endConnect();
+    }
+};
+
+
+// HttpInfo provides a simple graphical user interface to the server and shows
+// the actions of the server.
+class HttpInfo : public QVBox
+{
+    Q_OBJECT
+public:
+    HttpInfo()
+    {
+	HttpDaemon *httpd = new HttpDaemon( this );
+
+	QString itext = QString(
+		"This is a small httpd example.\n"
+		"You can connect with your\n"
+		"web browser to port %1"
+	    ).arg( httpd->port() );
+	QLabel *lb = new QLabel( itext, this );
+	lb->setAlignment( AlignHCenter );
+	infoText = new QTextView( this );
+	QPushButton *quit = new QPushButton( "quit" , this );
+
+	connect( httpd, SIGNAL(newConnect()), SLOT(newConnect()) );
+	connect( httpd, SIGNAL(endConnect()), SLOT(endConnect()) );
+	connect( httpd, SIGNAL(wroteToClient()), SLOT(wroteToClient()) );
+	connect( quit, SIGNAL(pressed()), qApp, SLOT(quit()) );
+    }
+
+    ~HttpInfo()
+    {
+    }
+
+private slots:
+    void newConnect()
+    {
+	infoText->append( "New connection" );
+    }
+    void endConnect()
+    {
+	infoText->append( "Connection closed\n\n" );
+    }
+    void wroteToClient()
+    {
+	infoText->append( "Wrote to client" );
+    }
+
+private:
+    QTextView *infoText;
+};
+
+
+int main( int argc, char** argv )
+{
+    QApplication app( argc, argv );
+    HttpInfo info;
+    app.setMainWidget( &info );
+    info.show();
+    return app.exec();
+}
+
+#include "httpd.moc"