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#!/usr/bin/perl -w #========================================================================= # Copyright 1999-2001 Idocs Guide to HTML, http://www.idocs.com/ # You may distribute this program freely, but keep # this notice in place. #========================================================================= #========================================================================= # modules # use strict; use CGI; use CGI::Carp 'fatalsToBrowser', 'croak'; # use lib 'pt/PtLib'; # use lib 'ads/'; # use Banner; # # modules #========================================================================= #========================================================================= # variables # my ( $query, # CGI query object $maxFields, # maximum number of fields to accept $rand, # random number for banners $inputdata, # filehandle for uploaded files @inputVals, # values for a field (they can send more than one) $inputVal, # a single values for a field $modval, # modified value of $fileinfo, # uploaded file information @params, # array of all fields sent $key,$val, # key an value for $fileinfo hash $ad,$adcode, ); $query=CGI->new; # get CGI object $maxFields=100; # maximum number of fields to accept $rand = int(rand(100000)); # random number for ad banner # # variables #========================================================================= #========================================================================= # top of page # print $query->header; print <<"(TOPOFPAGE)"; Idocs Guide to HTML: My CGI

My CGI

This CGI displays the name=value pairs sent to it. Feel free to use this CGI for practice making HTML forms. This CGI is provided compliments of the HTML Code Tutorial.

(TOPOFPAGE) # # top of page #========================================================================= #========================================================================= # list # # get list of fields @params = $query->param; if (@params > $maxFields) {croak "No more than $maxFields fields please"} # open table if necessary print "

n" if @params; PARAMLOOP: foreach my $paramKey (@params) { print ''; #---------------------------------------------------------------- # value # $inputdata = $query->param($paramKey); # print STDERR "[b]n"; # TESTING # the problem with "Use of uninitialized value in hash element at (eval 6) line 3." # happens during the next line $fileinfo = $query->uploadInfo($inputdata); # if it's an uploaded file if (defined $fileinfo) { print "", "n'; } # # value #---------------------------------------------------------------- print "n"; } # close table if necessary print "

", tablesc($paramKey), "

n"; while (($key,$val) = each %{$fileinfo}) { # content-disposition gives several pieces of # information about the file, so let's parse it up if (lc($key) eq 'content-disposition') { foreach my $dis (split(m|s*;s*|,$val)) { my @dispieces=split(m/s*=s*/,$dis,2); next unless defined $dispieces[1]; next if $dispieces[0] =~ m|^name$|i; print 'n"; } } # else just print the field else { print 'n"; } } # output the file size seek($inputdata,0,2); # go to end of file handle print 'n"; print '

', tablesc($dispieces[0]), '	`', tablesc($dispieces[1]), "`
', tablesc($key), '	`', tablesc($val), "`
size	', tell($inputdata), "

'; # } # else it's not an uploaded file else { # get array of input values @inputVals=$query->param($paramKey); @inputVals=grep(tablesc($_),@inputVals); # name of field print '

', tablesc($paramKey), '

';
		
		#out put value(s) for field
		foreach $inputVal (@inputVals)
			{$inputVal = tablesc($inputVal)}
		print 
			join("

", @inputVals), 
			'

n" if @params; # # list #========================================================================= #======================================================================= # bottom of document # # ************************************************************************ # *** IF YOU COPY My CGI, ABSOLUTELY PLEASE DO NOT CHANGE THIS SECTION *** # ************************************************************************ print <<"(END BOTTOM OF PAGE)";

A lot of people have asked to see the code for this CGI. OK, here it is. (END BOTTOM OF PAGE) # # bottom of document #======================================================================= #======================================================================= # tablesc # return undefined or for space-only/empty string, # otherwise change < > and & to character entities # sub tablesc { return " " if (! defined $_[0]) || ($_[0] !~ m|S|); $_[0] =~ s|&|&|gso; $_[0] =~ s|<|<|gso; $_[0] =~ s|>|>|gso; $_[0]; } # # tablesc #=======================================================================

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My CGI