1#!/usr/bin/env perl 2# ************************************************************* 3# 4# Licensed to the Apache Software Foundation (ASF) under one 5# or more contributor license agreements. See the NOTICE file 6# distributed with this work for additional information 7# regarding copyright ownership. The ASF licenses this file 8# to you under the Apache License, Version 2.0 (the 9# "License"); you may not use this file except in compliance 10# with the License. You may obtain a copy of the License at 11# 12# http://www.apache.org/licenses/LICENSE-2.0 13# 14# Unless required by applicable law or agreed to in writing, 15# software distributed under the License is distributed on an 16# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17# KIND, either express or implied. See the License for the 18# specific language governing permissions and limitations 19# under the License. 20# 21# ************************************************************* 22 23require "common.pl"; 24 25print "Content-type: text/html\n\n"; 26print "<HTML>"; 27 28# get current and last shown picture id 29$sCurrPic = join( "", common::File_read( "currpic.txt" ) ); 30 31%aRequestMap = common::HTTP_getRequest(); 32$sLastPic = $aRequestMap{ "LastPic" }; 33 34print "<HEAD>"; 35 print "<META http-equiv=\"refresh\" CONTENT=\"" . $common::REFRESH_TIME . "; URL=poll.pl?LastPic=" . $sCurrPic . "\">"; 36print "</HEAD>"; 37 38#' a new picture was chosen ? 39if( $sLastPic ne $sCurrPic ) 40{ 41 # then show the new picture 42 print "<BODY bgcolor=\"red\" onLoad=\"parent.frame1.location.href='./show.pl?" . $sCurrPic . "'\">"; 43} 44else 45{ 46 # otherwise do nothing 47 print "<BODY bgcolor=\"green\">"; 48} 49 50print "</BODY>"; 51 52print "</HTML>"; 53