99CGI Programming with Perl

CGIProgrammingwithPerl#!/usr/bin/perl#ItCameFromtheCrypt!$q=q&9RM8ba1cHtJprcG6SJ3dkaQM8pjp8vsYi3UnTfkcRJk9wxW2vh2GVK3YL1gNvfYEXdBQdETIdpMuWD9YCAvK0BrsuKn9kXUwkaNpj8qISZgRZkUg2I8W9jJsG8Rg9yeE8LvqZR7AHoPDIRVAVCgafA9MZjFb31Ea5bqr7gCgXzPpgkPsHjTP8iC2TtVYE0PURbzYb3EQiZrZiIm6Nc81WYqsUg7mQzHM2VjY62II5Bg7Nekkt75JLD86&;$u=$q=~s&\s&&xg&&−2;@v=unpackq&c3&,qq&i\nm&;unshift@v,2**2*2**2*2;%l=map{chr$_}reverse@v;$i=2*2*2&&$q,$q=$i&&8;while($i=~m&[^*]{$q}&x){$y=substr(crypt($&,$&),$u,print);print!$l{$y}&&$yney?$y:$l{$y};$i=~s+$&++x}$y=~m&ymum~my&KirrilyRobertPaulFenwickJacintaRichardsonCGIProgrammingwithPerlbyKirrilyRobert,PaulFenwick,andJacintaRichardsonCopyright©1999-2000byNetizenPtyLtdCopyright©2000byKirrilyRobertCopyright©2001byObsidianConsultingGroupPtyLtdCopyright©2001-2004byPaulFenwickCopyright©2001-2004byJacintaRichardsonCopyright©2001-2004byPerlTrainingAustraliaOpenPublicationsLicense1.0CoverartworkCopyright(c)2001JoeLesko.Usedwithpermission.ThismaterialmaybedistributedonlysubjecttothetermsandconditionssetforthintheOpenPublicationLicense,v1.0orlater(thelatestversionispresentlyavailableat).Distributionofthisworkorderivativeofthisworkinanystandard(paper)bookformisprohibitedunlesspriorpermissionisobtainedfromthecopyrightholder.ThisdocumentisagreatlyrevisedandeditedcopyofthetrainingnotesoriginallycreatedbyKirrilyRobertandNetizenPtyLtd.TheserevisionsweremadebyPaulFenwickandJacintaRichardson.Copiesoftheoriginaltrainingmanualscanbefoundat://://’sPerlProgrammingwithCGItrainingmanual.TableofContents1.Introduction.....................................................................................................................................1Courseoutline.............................................................................................................................1Assumedknowledge...................................................................................................................1Moduleobjectives.......................................................................................................................1Platformandversiondetails........................................................................................................1Thecoursenotes..........................................................................................................................2Othermaterials............................................................................................................................32.WhatisCGI?...................................................................................................................................5Inthischapter..............................................................................................................................5DefinitionofCGI........................................................................................................................5IntroductiontoHTTP..................................................................................................................5Terminology......................................................................................................................6HTTPMethods..................................................................................................................6GET..........................................................................................................................6HEAD......................................................................................................................6POST........................................................................................................................6WhatisneededtorunPerlCGIprograms?................................................................................7Chaptersummary........................................................................................................................73.GeneratingwebpageswithPerl....................................................................................................9Inthischapter..............................................................................................................................9Yourpublic_htmldirectory.........................................................................................................9TheCGIdirectory.......................................................................................................................9CGI.pm.MakingCGIprogrammingabreeze............................................................................9Thatheaderthing.............................................................................................................10Quotingandroll-your-ownquotes.....