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636 lines
24 KiB
636 lines
24 KiB
#!/usr/bin/perl
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#
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# $Id: formmail.pl,v 1.2 2004/01/13 19:22:04 jeffo Exp $
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#
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# FormMail Version 1.6 #
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# Copyright 1995-1997 Matt Wright mattw@worldwidemart.com #
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# Created 06/09/95 Last Modified 05/02/97 #
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# Matt's Script Archive, Inc.: http://www.worldwidemart.com/scripts/ #
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##############################################################################
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# COPYRIGHT NOTICE #
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# Copyright 1995-1997 Matthew M. Wright All Rights Reserved. #
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# #
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# FormMail may be used and modified free of charge by anyone so long as this #
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# copyright notice and the comments above remain intact. By using this #
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# code you agree to indemnify Matthew M. Wright from any liability that #
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# might arise from its use. #
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# #
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# Selling the code for this program without prior written consent is #
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# expressly forbidden. In other words, please ask first before you try and #
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# make money off of my program. #
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# #
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# Obtain permission before redistributing this software over the Internet or #
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# in any other medium. In all cases copyright and header must remain intact #
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##############################################################################
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# Define Variables #
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# Detailed Information Found In README File. #
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# $mailprog defines the location of your sendmail program on your unix #
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# system. #
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$mailprog = '/usr/lib/sendmail';
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# @referers allows forms to be located only on servers which are defined #
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# in this field. This security fix from the last version which allowed #
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# anyone on any server to use your FormMail script on their web site. #
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#@referers = ('worldwidemart.com','206.31.72.203');
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# Done #
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##############################################################################
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# Check Referring URL
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&check_url;
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# Retrieve Date
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&get_date;
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# Parse Form Contents
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&parse_form;
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# Check Required Fields
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&check_required;
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# Return HTML Page or Redirect User
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&return_html;
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# Send E-Mail
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&send_mail;
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sub check_url {
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# Localize the check_referer flag which determines if user is valid. #
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local($check_referer) = 0;
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# If a referring URL was specified, for each valid referer, make sure #
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# that a valid referring URL was passed to FormMail. #
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if ($ENV{'HTTP_REFERER'}) {
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foreach $referer (@referers) {
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if ($ENV{'HTTP_REFERER'} =~ m|https?://([^/]*)$referer|i) {
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$check_referer = 1;
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last;
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}
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}
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}
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else {
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$check_referer = 1;
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}
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# If the HTTP_REFERER was invalid, send back an error. #
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if ($check_referer != 1) { &error('bad_referer') }
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}
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sub get_date {
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# Define arrays for the day of the week and month of the year. #
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@days = ('Sunday','Monday','Tuesday','Wednesday',
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'Thursday','Friday','Saturday');
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@months = ('January','February','March','April','May','June','July',
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'August','September','October','November','December');
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# Get the current time and format the hour, minutes and seconds. Add #
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# 1900 to the year to get the full 4 digit year. #
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($sec,$min,$hour,$mday,$mon,$year,$wday) = (localtime(time))[0,1,2,3,4,5,6];
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$time = sprintf("%02d:%02d:%02d",$hour,$min,$sec);
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$year += 1900;
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# Format the date. #
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$date = "$days[$wday], $months[$mon] $mday, $year at $time";
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}
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sub parse_form {
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# Define the configuration associative array. #
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%Config = ('recipient','', 'subject','',
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'email','', 'realname','',
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'redirect','', 'bgcolor','',
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'background','', 'link_color','',
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'vlink_color','', 'text_color','',
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'alink_color','', 'title','',
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'sort','', 'print_config','',
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'required','', 'env_report','',
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'return_link_title','', 'return_link_url','',
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'print_blank_fields','', 'missing_fields_redirect','');
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# Determine the form's REQUEST_METHOD (GET or POST) and split the form #
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# fields up into their name-value pairs. If the REQUEST_METHOD was #
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# not GET or POST, send an error. #
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if ($ENV{'REQUEST_METHOD'} eq 'GET') {
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# Split the name-value pairs
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@pairs = split(/&/, $ENV{'QUERY_STRING'});
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}
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elsif ($ENV{'REQUEST_METHOD'} eq 'POST') {
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# Get the input
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read(STDIN, $buffer, $ENV{'CONTENT_LENGTH'});
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# Split the name-value pairs
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@pairs = split(/&/, $buffer);
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}
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else {
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&error('request_method');
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}
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# For each name-value pair: #
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foreach $pair (@pairs) {
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# Split the pair up into individual variables. #
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local($name, $value) = split(/=/, $pair);
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# Decode the form encoding on the name and value variables. #
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$name =~ tr/+/ /;
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$name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;
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$value =~ tr/+/ /;
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$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;
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# If they try to include server side includes, erase them, so they
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# aren't a security risk if the html gets returned. Another
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# security hole plugged up.
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$value =~ s/<!--(.|\n)*-->//g;
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# If the field name has been specified in the %Config array, it will #
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# return a 1 for defined($Config{$name}}) and we should associate #
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# this value with the appropriate configuration variable. If this #
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# is not a configuration form field, put it into the associative #
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# array %Form, appending the value with a ', ' if there is already a #
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# value present. We also save the order of the form fields in the #
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# @Field_Order array so we can use this order for the generic sort. #
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if (defined($Config{$name})) {
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$Config{$name} = $value;
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}
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else {
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if ($Form{$name} && $value) {
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$Form{$name} = "$Form{$name}, $value";
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}
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elsif ($value) {
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push(@Field_Order,$name);
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$Form{$name} = $value;
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}
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}
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}
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# The next six lines remove any extra spaces or new lines from the #
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# configuration variables, which may have been caused if your editor #
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# wraps lines after a certain length or if you used spaces between field #
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# names or environment variables. #
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$Config{'required'} =~ s/(\s+|\n)?,(\s+|\n)?/,/g;
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$Config{'required'} =~ s/(\s+)?\n+(\s+)?//g;
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$Config{'env_report'} =~ s/(\s+|\n)?,(\s+|\n)?/,/g;
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$Config{'env_report'} =~ s/(\s+)?\n+(\s+)?//g;
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$Config{'print_config'} =~ s/(\s+|\n)?,(\s+|\n)?/,/g;
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$Config{'print_config'} =~ s/(\s+)?\n+(\s+)?//g;
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# Split the configuration variables into individual field names. #
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@Required = split(/,/,$Config{'required'});
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@Env_Report = split(/,/,$Config{'env_report'});
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@Print_Config = split(/,/,$Config{'print_config'});
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}
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sub check_required {
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# Localize the variables used in this subroutine. #
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local($require, @error);
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if (!$Config{'recipient'}) {
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if (!defined(%Form)) { &error('bad_referer') }
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else { &error('no_recipient') }
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}
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# For each require field defined in the form: #
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foreach $require (@Required) {
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# If the required field is the email field, the syntax of the email #
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# address if checked to make sure it passes a valid syntax. #
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if ($require eq 'email' && !&check_email($Config{$require})) {
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push(@error,$require);
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}
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# Otherwise, if the required field is a configuration field and it #
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# has no value or has been filled in with a space, send an error. #
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elsif (defined($Config{$require})) {
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if (!$Config{$require}) {
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push(@error,$require);
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}
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}
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# If it is a regular form field which has not been filled in or #
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# filled in with a space, flag it as an error field. #
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elsif (!$Form{$require}) {
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push(@error,$require);
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}
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}
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# If any error fields have been found, send error message to the user. #
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if (@error) { &error('missing_fields', @error) }
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}
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sub return_html {
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# Local variables used in this subroutine initialized. #
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local($key,$sort_order,$sorted_field);
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# If redirect option is used, print the redirectional location header. #
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if ($Config{'redirect'}) {
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print "Location: $Config{'redirect'}\n\n";
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}
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# Otherwise, begin printing the response page. #
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else {
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# Print HTTP header and opening HTML tags. #
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print "Content-type: text/html\n\n";
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print "<html>\n <head>\n";
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# Print out title of page #
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if ($Config{'title'}) { print " <title>$Config{'title'}</title>\n" }
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else { print " <title>Thank You</title>\n" }
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print " </head>\n <body";
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# Get Body Tag Attributes #
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&body_attributes;
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# Close Body Tag #
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print ">\n <center>\n";
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# Print custom or generic title. #
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if ($Config{'title'}) { print " <h1>$Config{'title'}</h1>\n" }
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else { print " <h1>Thank You For Filling Out This Form</h1>\n" }
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print "</center>\n";
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print "Below is what you submitted to $Config{'recipient'} on ";
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print "$date<p><hr size=1 width=75\%><p>\n";
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# Sort alphabetically if specified: #
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if ($Config{'sort'} eq 'alphabetic') {
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foreach $field (sort keys %Form) {
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# If the field has a value or the print blank fields option #
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# is turned on, print out the form field and value. #
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if ($Config{'print_blank_fields'} || $Form{$field}) {
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print "<b>$field:</b> $Form{$field}<p>\n";
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}
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}
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}
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# If a sort order is specified, sort the form fields based on that. #
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elsif ($Config{'sort'} =~ /^order:.*,.*/) {
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# Set the temporary $sort_order variable to the sorting order, #
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# remove extraneous line breaks and spaces, remove the order: #
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# directive and split the sort fields into an array. #
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$sort_order = $Config{'sort'};
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$sort_order =~ s/(\s+|\n)?,(\s+|\n)?/,/g;
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$sort_order =~ s/(\s+)?\n+(\s+)?//g;
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$sort_order =~ s/order://;
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@sorted_fields = split(/,/, $sort_order);
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# For each sorted field, if it has a value or the print blank #
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# fields option is turned on print the form field and value. #
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foreach $sorted_field (@sorted_fields) {
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if ($Config{'print_blank_fields'} || $Form{$sorted_field}) {
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print "<b>$sorted_field:</b> $Form{$sorted_field}<p>\n";
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}
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}
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}
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# Otherwise, default to the order in which the fields were sent. #
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else {
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# For each form field, if it has a value or the print blank #
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# fields option is turned on print the form field and value. #
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foreach $field (@Field_Order) {
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if ($Config{'print_blank_fields'} || $Form{$field}) {
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print "<b>$field:</b> $Form{$field}<p>\n";
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}
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}
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}
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print "<p><hr size=1 width=75%><p>\n";
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# Check for a Return Link and print one if found. #
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if ($Config{'return_link_url'} && $Config{'return_link_title'}) {
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print "<ul>\n";
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print "<li><a href=\"$Config{'return_link_url'}\">$Config{'return_link_title'}</a>\n";
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print "</ul>\n";
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}
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# Print the page footer. #
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print <<"(END HTML FOOTER)";
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<hr size=1 width=75%><p>
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<center><font size=-1><a href="http://www.worldwidemart.com/scripts/formmail.shtml">FormMail</a> V1.6 © 1995 -1997 Matt Wright<br>
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A Free Product of <a href="http://www.worldwidemart.com/scripts/">Matt's Script Archive, Inc.</a></font></center>
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</body>
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</html>
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(END HTML FOOTER)
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}
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}
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sub send_mail {
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# Localize variables used in this subroutine. #
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local($print_config,$key,$sort_order,$sorted_field,$env_report);
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# Open The Mail Program
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open(MAIL,"|$mailprog -t");
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print MAIL "To: $Config{'recipient'}\n";
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print MAIL "From: $Config{'email'} ($Config{'realname'})\n";
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# Check for Message Subject
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if ($Config{'subject'}) { print MAIL "Subject: $Config{'subject'}\n\n" }
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else { print MAIL "Subject: WWW Form Submission\n\n" }
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print MAIL "Below is the result of your feedback form. It was submitted by\n";
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print MAIL "$Config{'realname'} ($Config{'email'}) on $date\n";
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print MAIL "-" x 75 . "\n\n";
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if (@Print_Config) {
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foreach $print_config (@Print_Config) {
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if ($Config{$print_config}) {
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print MAIL "$print_config: $Config{$print_config}\n\n";
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}
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}
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}
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# Sort alphabetically if specified: #
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if ($Config{'sort'} eq 'alphabetic') {
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foreach $field (sort keys %Form) {
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# If the field has a value or the print blank fields option #
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# is turned on, print out the form field and value. #
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if ($Config{'print_blank_fields'} || $Form{$field} ||
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$Form{$field} eq '0') {
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print MAIL "$field: $Form{$field}\n\n";
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}
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}
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}
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# If a sort order is specified, sort the form fields based on that. #
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elsif ($Config{'sort'} =~ /^order:.*,.*/) {
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# Remove extraneous line breaks and spaces, remove the order: #
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# directive and split the sort fields into an array. #
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$Config{'sort'} =~ s/(\s+|\n)?,(\s+|\n)?/,/g;
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$Config{'sort'} =~ s/(\s+)?\n+(\s+)?//g;
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$Config{'sort'} =~ s/order://;
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@sorted_fields = split(/,/, $Config{'sort'});
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# For each sorted field, if it has a value or the print blank #
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# fields option is turned on print the form field and value. #
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foreach $sorted_field (@sorted_fields) {
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if ($Config{'print_blank_fields'} || $Form{$sorted_field} ||
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$Form{$sorted_field} eq '0') {
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print MAIL "$sorted_field: $Form{$sorted_field}\n\n";
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}
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}
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}
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# Otherwise, default to the order in which the fields were sent. #
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else {
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# For each form field, if it has a value or the print blank #
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# fields option is turned on print the form field and value. #
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foreach $field (@Field_Order) {
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if ($Config{'print_blank_fields'} || $Form{$field} ||
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$Form{$field} eq '0') {
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print MAIL "$field: $Form{$field}\n\n";
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}
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}
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}
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print MAIL "-" x 75 . "\n\n";
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# Send any specified Environment Variables to recipient. #
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foreach $env_report (@Env_Report) {
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if ($ENV{$env_report}) {
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print MAIL "$env_report: $ENV{$env_report}\n";
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}
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}
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close (MAIL);
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}
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sub check_email {
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# Initialize local email variable with input to subroutine. #
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$email = $_[0];
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# If the e-mail address contains: #
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if ($email =~ /(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/ ||
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# the e-mail address contains an invalid syntax. Or, if the #
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# syntax does not match the following regular expression pattern #
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# it fails basic syntax verification. #
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$email !~ /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/) {
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# Basic syntax requires: one or more characters before the @ sign, #
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# followed by an optional '[', then any number of letters, numbers, #
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# dashes or periods (valid domain/IP characters) ending in a period #
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# and then 2 or 3 letters (for domain suffixes) or 1 to 3 numbers #
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# (for IP addresses). An ending bracket is also allowed as it is #
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# valid syntax to have an email address like: user@[255.255.255.0] #
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# Return a false value, since the e-mail address did not pass valid #
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# syntax. #
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return 0;
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}
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else {
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# Return a true value, e-mail verification passed. #
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return 1;
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}
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}
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sub body_attributes {
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# Check for Background Color
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if ($Config{'bgcolor'}) { print " bgcolor=\"$Config{'bgcolor'}\"" }
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# Check for Background Image
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if ($Config{'background'}) { print " background=\"$Config{'background'}\"" }
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# Check for Link Color
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if ($Config{'link_color'}) { print " link=\"$Config{'link_color'}\"" }
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# Check for Visited Link Color
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if ($Config{'vlink_color'}) { print " vlink=\"$Config{'vlink_color'}\"" }
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# Check for Active Link Color
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if ($Config{'alink_color'}) { print " alink=\"$Config{'alink_color'}\"" }
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# Check for Body Text Color
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if ($Config{'text_color'}) { print " text=\"$Config{'text_color'}\"" }
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}
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sub error {
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# Localize variables and assign subroutine input. #
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local($error,@error_fields) = @_;
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local($host,$missing_field,$missing_field_list);
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if ($error eq 'bad_referer') {
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if ($ENV{'HTTP_REFERER'} =~ m|^https?://([\w\.]+)|i) {
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$host = $1;
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print <<"(END ERROR HTML)";
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Content-type: text/html
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<html>
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<head>
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<title>Bad Referrer - Access Denied</title>
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</head>
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<body bgcolor=#FFFFFF text=#000000>
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<center>
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<table border=0 width=600 bgcolor=#9C9C9C>
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<tr><th><font size=+2>Bad Referrer - Access Denied</font></th></tr>
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</table>
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<table border=0 width=600 bgcolor=#CFCFCF>
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<tr><td>The form attempting to use
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<a href="http://www.worldwidemart.com/scripts/formmail.shtml">FormMail</a>
|
|
resides at <tt>$ENV{'HTTP_REFERER'}</tt>, which is not allowed to access
|
|
this cgi script.<p>
|
|
|
|
If you are attempting to configure FormMail to run with this form, you need
|
|
to add the following to \@referers, explained in detail in the README file.<p>
|
|
|
|
Add <tt>'$host'</tt> to your <tt><b>\@referers</b></tt> array.<hr size=1>
|
|
<center><font size=-1>
|
|
<a href="http://www.worldwidemart.com/scripts/formmail.shtml">FormMail</a> V1.6 © 1995 - 1997 Matt Wright<br>
|
|
A Free Product of <a href="http://www.worldwidemart.com/scripts/">Matt's Script Archive, Inc.</a>
|
|
</font></center>
|
|
</td></tr>
|
|
</table>
|
|
</center>
|
|
</body>
|
|
</html>
|
|
(END ERROR HTML)
|
|
}
|
|
else {
|
|
print <<"(END ERROR HTML)";
|
|
Content-type: text/html
|
|
|
|
<html>
|
|
<head>
|
|
<title>FormMail v1.6</title>
|
|
</head>
|
|
<body bgcolor=#FFFFFF text=#000000>
|
|
<center>
|
|
<table border=0 width=600 bgcolor=#9C9C9C>
|
|
<tr><th><font size=+2>FormMail</font></th></tr>
|
|
</table>
|
|
<table border=0 width=600 bgcolor=#CFCFCF>
|
|
<tr><th><tt><font size=+1>Copyright 1995 - 1997 Matt Wright<br>
|
|
Version 1.6 - Released May 02, 1997<br>
|
|
A Free Product of <a href="http://www.worldwidemart.com/scripts/">Matt's Script Archive,
|
|
Inc.</a></font></tt></th></tr>
|
|
</table>
|
|
</center>
|
|
</body>
|
|
</html>
|
|
(END ERROR HTML)
|
|
}
|
|
}
|
|
|
|
elsif ($error eq 'request_method') {
|
|
print <<"(END ERROR HTML)";
|
|
Content-type: text/html
|
|
|
|
<html>
|
|
<head>
|
|
<title>Error: Request Method</title>
|
|
</head>
|
|
<body bgcolor=#FFFFFF text=#000000>
|
|
<center>
|
|
<table border=0 width=600 bgcolor=#9C9C9C>
|
|
<tr><th><font size=+2>Error: Request Method</font></th></tr>
|
|
</table>
|
|
<table border=0 width=600 bgcolor=#CFCFCF>
|
|
<tr><td>The Request Method of the Form you submitted did not match
|
|
either <tt>GET</tt> or <tt>POST</tt>. Please check the form and make sure the
|
|
<tt>method=</tt> statement is in upper case and matches <tt>GET</tt> or <tt>POST</tt>.<p>
|
|
|
|
<center><font size=-1>
|
|
<a href="http://www.worldwidemart.com/scripts/formmail.shtml">FormMail</a> V1.6 © 1995 - 1997 Matt Wright<br>
|
|
A Free Product of <a href="http://www.worldwidemart.com/scripts/">Matt's Script Archive, Inc.</a>
|
|
</font></center>
|
|
</td></tr>
|
|
</table>
|
|
</center>
|
|
</body>
|
|
</html>
|
|
(END ERROR HTML)
|
|
}
|
|
|
|
elsif ($error eq 'no_recipient') {
|
|
print <<"(END ERROR HTML)";
|
|
Content-type: text/html
|
|
|
|
<html>
|
|
<head>
|
|
<title>Error: No Recipient</title>
|
|
</head>
|
|
<body bgcolor=#FFFFFF text=#000000>
|
|
<center>
|
|
<table border=0 width=600 bgcolor=#9C9C9C>
|
|
<tr><th><font size=+2>Error: No Recipient</font></th></tr>
|
|
</table>
|
|
<table border=0 width=600 bgcolor=#CFCFCF>
|
|
<tr><td>No Recipient was specified in the data sent to FormMail. Please
|
|
make sure you have filled in the 'recipient' form field with an e-mail
|
|
address. More information on filling in recipient form fields can be
|
|
found in the README file.<hr size=1>
|
|
|
|
<center><font size=-1>
|
|
<a href="http://www.worldwidemart.com/scripts/formmail.shtml">FormMail</a> V1.6 © 1995 - 1997 Matt Wright<br>
|
|
A Free Product of <a href="http://www.worldwidemart.com/scripts/">Matt's Script Archive, Inc.</a>
|
|
</font></center>
|
|
</td></tr>
|
|
</table>
|
|
</center>
|
|
</body>
|
|
</html>
|
|
(END ERROR HTML)
|
|
}
|
|
|
|
elsif ($error eq 'missing_fields') {
|
|
if ($Config{'missing_fields_redirect'}) {
|
|
print "Location: $Config{'missing_fields_redirect'}\n\n";
|
|
}
|
|
else {
|
|
foreach $missing_field (@error_fields) {
|
|
$missing_field_list .= " <li>$missing_field\n";
|
|
}
|
|
|
|
print <<"(END ERROR HTML)";
|
|
Content-type: text/html
|
|
|
|
<html>
|
|
<head>
|
|
<title>Error: Blank Fields</title>
|
|
</head>
|
|
<center>
|
|
<table border=0 width=600 bgcolor=#9C9C9C>
|
|
<tr><th><font size=+2>Error: Blank Fields</font></th></tr>
|
|
</table>
|
|
<table border=0 width=600 bgcolor=#CFCFCF>
|
|
<tr><td>The following fields were left blank in your submission form:<p>
|
|
<ul>
|
|
$missing_field_list
|
|
</ul><br>
|
|
|
|
These fields must be filled in before you can successfully submit the form.<p>
|
|
Please use your browser's back button to return to the form and try again.<hr size=1>
|
|
<center><font size=-1>
|
|
<a href="http://www.worldwidemart.com/scripts/formmail.shtml">FormMail</a> V1.6 © 1995 - 1997 Matt Wright<br>
|
|
A Free Product of <a href="http://www.worldwidemart.com/scripts/">Matt's Script Archive, Inc.</a>
|
|
</font></center>
|
|
</td></tr>
|
|
</table>
|
|
</center>
|
|
</body>
|
|
</html>
|
|
(END ERROR HTML)
|
|
}
|
|
}
|
|
exit;
|
|
}
|
|
|
|
|