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POPerl help: Can't call method "display" on an undefined value
 

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  1. POPerl help: Can't call method "display" on an undefined value
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    <p>Let start with the basic back ground. We recently brought our web hosting in house. There are few old website still use Perl. I have no experience with Perl. Let's Begin. We have a this sub website on our main domain. </p> <p>Public link : <a href="http://www.gatewayrehab.org/eap" rel="nofollow">http://www.gatewayrehab.org/eap/</a> </p> <p>When you goto website we get the following error message</p> <pre><code> "Software error: Can't call method "display" on an undefined value at /var/www/www.gatewayrehab.org/app/webroot/eap/index.cgi line 47." </code></pre> <p>Looking at the EAP website/directory all files look in place with proper permission, again I have no experience with Perl/Cgi. Below is the index.cgi file :</p> <pre><code>#!/usr/bin/perl -w ### the main control file used in the system BEGIN { unshift @INC, qw(./cgi-bin/include/); } ### send all fatal errors to the browser use CGI::Carp qw(fatalsToBrowser); use CGI qw(:standard); use Error_Handler; use File_Handler; use Cookie_Handler; require "./cgi-bin/setup.cgi"; do "./cgi-bin/include/common.cgi"; ### initialize the file handling module my $File = new File_Handler; ### initialize the cookie handling module my $Cookie = new Cookie_Handler; ###parse $ENV{'REQUEST_METHOD'} =~ tr/a-z/A-Z/; if ($ENV{'REQUEST_METHOD'} eq "POST"){ read(STDIN, $buffer, $ENV{'CONTENT_LENGTH'}); } else { $buffer = $ENV{'QUERY_STRING'}; } @pairs = split(/&amp;/, $buffer); #&amp;error_check; foreach $pair (@pairs){ ($name, $value) = split(/=/, $pair); $value =~ tr/+/ /; $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg; $name =~ tr/+/ /; $name =~ s/\breq\_//ig; $name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg; $name =~ tr/A-Z/a-z/; $name = trim($name); $FORM{$name} = trim($value); } my %cookiedata = $Cookie -&gt; get_cookies(); ### read the summary database my $summary_ref = $File -&gt; read($login_summary)|| $Error -&gt; display("$!". __LINE__); my (@summary) = @$summary_ref; ### read the companies database my $companies_ref = $File -&gt; read($companies_db)|| $Error -&gt; display("$!". __LINE__); my (@companies) = @$companies_ref; my %COMP = (); foreach (@companies) { $_ =~ s/\n|\r//g; my ($c_num, $c_name) = split(/\t/, $_); $COMP{$c_num} = $c_name; } if ( $cookiedata{'LOGIN'} != 1 ) { my $found = 0; my $company_number = $ENV{'REMOTE_USER'}; $company_number =~ s/s|e|w//g; foreach (@summary) { $_ =~ s/\n|\r//g; my @field = split(/\t/, $_); $field[0] = &amp;trim($field[0]); $field[2] = &amp;trim($field[2]); $field[3] = &amp;trim($field[3]); $field[4] = &amp;trim($field[4]); $field[5] = &amp;trim($field[5]); $field[6] = &amp;trim($field[6]); if ( $field[0] eq "$company_number" ) { $found = 1; my $firstletters = substr($ENV{'REMOTE_USER'}, 0, 2); $firstletters = trim($firstletters); if ( $firstletters ne "sw" &amp;&amp; $firstletters ne "lf" ) { $firstletters = substr($firstletters, 0, 1); } if ( lc($firstletters) eq "e" ) { $field[3] = ($field[3] + 1); } elsif ( lc($firstletters) eq "s" ) { $field[2] = ($field[2] + 1); } elsif ( lc($firstletters) eq "w" ) { $field[4] = ($field[4] + 1); } elsif ( lc($firstletters) eq "sw" ) { $field[5] = ($field[2] + 1); } elsif ( lc($firstletters) eq "lf" ) { $field[6] = ($field[6] + 1); } else { $field[3] = ($field[3] + 1); } $_ = join("\t", @field); } } if ( $found == 1 ) { # write data back to file # append to summary file open(LOG, "&gt;$login_summary") || $Error -&gt; display("$!". __LINE__); flock(LOG,2); foreach (@summary) { print LOG $_ ."\n"; } flock(LOG,8); close(LOG); #$File -&gt; file($login_summary); #$File -&gt; data(\@summary); #$File -&gt; write() || $Error -&gt; display("$!". __LINE__); } else { $e = 0; $s = 0; $w = 0; $sw = 0; $lf = 0; my $firstletters = substr($ENV{'REMOTE_USER'}, 0, 2); $firstletters = trim($firstletters); if ( $firstletters ne "sw" &amp;&amp; $firstletters ne "lf" ) { $firstletters = substr($firstletters, 0, 1); } if ( lc($firstletters) eq "e" ) { $e = 1; } elsif ( lc($firstletters) eq "s" ) { $s = 1; } elsif ( lc($firstletters) eq "w" ) { $w = 1; } elsif ( lc($firstletters) eq "sw" ) { #$sw = 1; $s = 1; } elsif ( lc($firstletters) eq "lf" ) { $lf = 1; } else { $e = 1; } # append to summary file open(LOG, "&gt;&gt;$login_summary") || $Error -&gt; display("$!". __LINE__); flock(LOG,2); print LOG $company_number ."\t". $COMP{$company_number} ."\t". $s ."\t". $e ."\t". $w . "\t". $sw ."\t". $lf ."\n"; flock(LOG,8); close(LOG); } my (@login_logs) = (); my $logline = ""; $login_logs[0] = $ENV{'REMOTE_USER'}; $login_logs[1] = $ENV{'REMOTE_ADDR'}; $login_logs[2] = time(); open(LOG, "&gt;&gt;$login_logs") || $Error -&gt; display("$!". __LINE__); flock(LOG,2); print LOG $ENV{'REMOTE_USER'} ."\t". $ENV{'REMOTE_ADDR'} ."\t". time() ."\n"; flock(LOG,8); close(LOG); print "Set-Cookie: LOGIN=1"; print "; path=$cookiepath; domain=$cookiedomain;\n"; } my $firstletters = substr($ENV{'REMOTE_USER'}, 0, 2); $firstletters = trim($firstletters); if ( $firstletters ne "sw" &amp;&amp; $firstletters ne "lf") { $firstletters = substr($firstletters, 0, 1); } if ( lc($firstletters) eq "e" ) { print "Location: http://www.gatewayrehab.org/eap/new/employee/member.htm\n\n"; } elsif ( lc($firstletters) eq "s" ) { print "Location: http://www.gatewayrehab.org/eap/supervisor/\n\n"; } elsif ( lc($firstletters) eq "w" ) { print "Location: http://www.gatewayrehab.org/eap/new/worklife/member.htm\n\n"; } elsif ( lc($firstletters) eq "sw" ) { print "Location: http://www.gatewayrehab.org/eap/supervisor-wl/\n\n"; exit; } elsif ( lc($firstletters) eq "lf" ) { print "Location: http://www.gatewayrehab.org/eap/legalandfinancial/\n\n"; exit; } else { print "Location: http://www.gatewayrehab.org/eap/new/employee/member.htm\n\n"; } #output html print "Content-type: text/html\n\n"; print "&lt;h1&gt;hello world!&lt;/h1&gt;"; $e = `perl -ver`; $r = `whereis perl5`; $z = `whereis sendmail`;# $w = `top`;# $d = `w`; print "&lt;pre&gt;perl version:&lt;br&gt;$e&lt;hr&gt;perl path:&lt;br&gt;$r&lt;hr&gt;sendmail path:&lt;br&gt;$z&lt;hr&gt;top:&lt;br&gt;$w&lt;hr&gt;w:&lt;br&gt;$d&lt;hr&gt;environment vars:&lt;br&gt;";## while (($key, $val) = each %ENV) { print "$key = $val\n"; } $x= 'lowercase'; print "&lt;hr&gt;path tranlsated(NT)&lt;br&gt;$ENV{'PATH_TRANSLATED'}&lt;/pre&gt;"; #$x = uc($x); print "&lt;br&gt;$x"; exit; </code></pre> <p>Please let me know what I am missing. If you need to look at more "included" files let me know.</p> <p>Also here is the link for our cgi config. <a href="http://www.gatewayrehab.org/eap/cgi-bin/cgi.cgi" rel="nofollow">http://www.gatewayrehab.org/eap/cgi-bin/cgi.cgi</a></p> <p>Thank You.</p>
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    1. COWhile I sympathize with your situation, this question would fit this site better if had a "help me learn enough Perl to fix this" focus, rather than "here's everything I see; tell me what to do".
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      1. POPerl help: Can't call method "display" on an undefined value
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    2. CO@ysth: Very true. But you someone was going to learn Perl then I'd really hope that they wouldn't start with this monstrosity of a program that looks like it was written in about 1996 :-/
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    3. CO@Dave Cross: you, sir, are not a maintenance programmer :)
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