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#!/usr/bin/perl -w
## This program is based on an example program for Qt. It
## may be used, distributed and modified without limitation.
##
## Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
# When a new client connects, the server constructs a Qt::Socket and all
# communication with the client is done over this Socket object. Qt::Socket
# works asynchronously - this means that all the communication is done
# through the two slots readClient() and discardClient().
package HttpDaemon;
use Qt;
use Qt::isa qw(Qt::ServerSocket);
use Qt::signals
newConnect => [],
endConnect => [],
wroteToClient => [];
use Qt::slots
readClient => [],
discardClient => [];
use Qt::attributes qw(
sockets
);
sub NEW
{
shift->SUPER::NEW(8080, 1, $_[0]);
if( !this->ok() )
{
die "Failed to bind to port 8080\n";
}
sockets = {};
}
sub newConnection
{
my $s = Qt::Socket( this );
this->connect( $s, SIGNAL 'readyRead()', this, SLOT 'readClient()' );
this->connect( $s, SIGNAL 'delayedCloseFinished()', this, SLOT 'discardClient()' );
$s->setSocket( shift );
sockets->{ $s } = $s;
emit newConnect();
}
sub 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.
my $s = sender();
if ( $s->canReadLine() )
{
my @tokens = split( /\s\s*/, $s->readLine() );
if ( $tokens[0] eq "GET" )
{
my $string = "HTTP/1.0 200 Ok\n\rContent-Type: text/html; charset=\"utf-8\"\n\r".
"\n\r<h1>Nothing to see here</h1>\n";
$s->writeBlock($string, length($string));
$s->close();
emit wroteToClient();
}
}
}
sub discardClient
{
my $s = sender();
sockets->{$s} = 0;
emit endConnect();
}
1;
# HttpInfo provides a simple graphical user interface to the server and shows
# the actions of the server.
package HttpInfo;
use Qt;
use Qt::isa qw(Qt::VBox);
use Qt::slots
newConnect => [],
endConnect => [],
wroteToClient => [];
use Qt::attributes qw(
httpd
infoText
);
use HttpDaemon;
sub NEW
{
shift->SUPER::NEW(@_);
httpd = HttpDaemon( this );
my $port = httpd->port();
my $itext = "This is a small httpd example.\n".
"You can connect with your\n".
"web browser to port $port\n";
my $lb = Label( $itext, this );
$lb->setAlignment( &AlignHCenter );
infoText = TextView( this );
my $quit = PushButton( "quit" , this );
this->connect( httpd, SIGNAL 'newConnect()', SLOT 'newConnect()' );
this->connect( httpd, SIGNAL 'endConnect()', SLOT 'endConnect()' );
this->connect( httpd, SIGNAL 'wroteToClient()', SLOT 'wroteToClient()' );
this->connect( $quit, SIGNAL 'pressed()', Qt::app(), SLOT 'quit()' );
}
sub newConnect
{
infoText->append( "New connection" );
}
sub endConnect
{
infoText->append( "Connection closed\n\n" );
}
sub wroteToClient
{
infoText->append( "Wrote to client" );
}
1;
package main;
use Qt;
use HttpInfo;
my $app = Qt::Application(\@ARGV);
my $info = HttpInfo;
$app->setMainWidget($info);
$info->show;
exit $app->exec;
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