Perl

THEoriginalDAG22 · June 17, 2007

Hello PHP Freaks Staff,

I have a Perl script that allows people to contact you,

I guess you can call it a feedback form,

I know this is able to be done with PHP

but it is way more secure in PHP,

I was going to post it but there was no section for Perl,

if you guys are willing to make a Perl section or just a section for me

to post this, I will give you guys the code or post it myself,

if you guys are interested

Daniel0 · June 17, 2007

You can post it in the Miscellaneous forum.

Miscellaneous Topics that do not fall into all of the other forums. You can have personal discussions here about the weather' date=' your car, your dog or whatever.. Have fun [/quote']

THEoriginalDAG22 · June 18, 2007

If anyone out there wants to use a feedback form that is more secure than

PHP I have one written in Perl,

all it requires is your host to include Perl/CGI and this will work everytime,

heres what you do,

Name this file "cgi-bin/formmail.cgi"

#!/usr/bin/perl
##############################################################################

# Define Variables                                                           #

# $mailprog defines the location of your sendmail program on your unix       #
# system. The flags -i and -t should be passed to sendmail in order to       #
# have it ignore single dots on a line and to read message for recipients    #

$mailprog = '/usr/sbin/sendmail -i -t';

# @referers allows forms to be located only on servers which are defined     #
# in this field.  This security fix from the last version which allowed      #
# anyone on any server to use your FormMail script on their web site.        #

@referers = ('yourdomain.com','Website IP Address');

# @recipients defines the e-mail addresses or domain names that e-mail can   #
# be sent to.  This must be filled in correctly to prevent SPAM and allow    #
# valid addresses to receive e-mail.  It is EXTREMELY IMPORTANT.                         #
@recipients = &fill_recipients('yourdomain.com','sub.domain.com','etc.');

# Leave this as is #

@valid_ENV = ('REMOTE_HOST','REMOTE_ADDR','REMOTE_USER','HTTP_USER_AGENT');

# Done                                                                       #
##############################################################################

# Check Referring URL
&check_url;

# Retrieve Date
&get_date;

# Parse Form Contents
&parse_form;

# Check Required Fields
&check_required;

# Send E-Mail
&send_mail;

# Return HTML Page or Redirect User
&return_html;

# NOTE rev1.91: This function is no longer intended to stop abuse, that      #
#    functionality is now embedded in the checks made on @recipients and the #
#    recipient form field.                                                   #

sub check_url {

    # Localize the check_referer flag which determines if user is valid.     #
    local($check_referer) = 0;

    # If a referring URL was specified, for each valid referer, make sure    #
    # that a valid referring URL was passed to FormMail.                     #

    if ($ENV{'HTTP_REFERER'}) {
        foreach $referer (@referers) {
            if ($ENV{'HTTP_REFERER'} =~ m|https?://([^/]*)$referer|i) {
                $check_referer = 1;
                last;
            }
        }
    }
    else {
        $check_referer = 1;
    }

    # If the HTTP_REFERER was invalid, send back an error.                   #
    if ($check_referer != 1) { &error('bad_referer') }
}

sub get_date {

    # Define arrays for the day of the week and month of the year.           #
    @days   = ('Sunday','Monday','Tuesday','Wednesday',
               'Thursday','Friday','Saturday');
    @months = ('January','February','March','April','May','June','July',
               'August','September','October','November','December');

    # Get the current time and format the hour, minutes and seconds.  Add    #
    # 1900 to the year to get the full 4 digit year.                         #
    ($sec,$min,$hour,$mday,$mon,$year,$wday) = (localtime(time))[0,1,2,3,4,5,6];
    $time = sprintf("%02d:%02d:%02d",$hour,$min,$sec);
    $year += 1900;

    # Format the date.                                                       #
    $date = "$days[$wday], $months[$mon] $mday, $year at $time";

}

sub parse_form {

    # Define the configuration associative array.                            #
    %Config = ('recipient','',          'subject','',
               'email','',              'realname','',
               'redirect','',           'bgcolor','',
               'background','',         'link_color','',
               'vlink_color','',        'text_color','',
               'alink_color','',        'title','',
               'sort','',               'print_config','',
               'required','',           'env_report','',
               'return_link_title','',  'return_link_url','',
               'print_blank_fields','', 'missing_fields_redirect','');

    # Determine the form's REQUEST_METHOD (GET or POST) and split the form   #
    # fields up into their name-value pairs.  If the REQUEST_METHOD was      #
    # not GET or POST, send an error.                                        #
    if ($ENV{'REQUEST_METHOD'} eq 'GET') {
        # Split the name-value pairs
        @pairs = split(/&/, $ENV{'QUERY_STRING'});
    }
    elsif ($ENV{'REQUEST_METHOD'} eq 'POST') {
        # Get the input
        read(STDIN, $buffer, $ENV{'CONTENT_LENGTH'});

        # Split the name-value pairs
        @pairs = split(/&/, $buffer);
    }
    else {
        &error('request_method');
    }

    # For each name-value pair:                                              #
    foreach $pair (@pairs) {

        # Split the pair up into individual variables.                       #
        local($name, $value) = split(/=/, $pair);

        # Decode the form encoding on the name and value variables.          #
        # v1.92: remove null bytes                                           #
        $name =~ tr/+/ /;
        $name =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;
        $name =~ tr/\0//d;

        $value =~ tr/+/ /;
        $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;
        $value =~ tr/\0//d;

        # If the field name has been specified in the %Config array, it will #
        # return a 1 for defined($Config{$name}}) and we should associate    #
        # this value with the appropriate configuration variable.  If this   #
        # is not a configuration form field, put it into the associative     #
        # array %Form, appending the value with a ', ' if there is already a #
        # value present.  We also save the order of the form fields in the   #
        # @Field_Order array so we can use this order for the generic sort.  #
        if (defined($Config{$name})) {
            $Config{$name} = $value;
        }
        else {
            if ($Form{$name} ne '') {
                $Form{$name} = "$Form{$name}, $value";
            }
            else {
                push(@Field_Order,$name);
                $Form{$name} = $value;
            }
        }
    }

    # The next six lines remove any extra spaces or new lines from the       #
    # configuration variables, which may have been caused if your editor     #
    # wraps lines after a certain length or if you used spaces between field #
    # names or environment variables.                                        #
    $Config{'required'} =~ s/(\s+|\n)?,(\s+|\n)?/,/g;
    $Config{'required'} =~ s/(\s+)?\n+(\s+)?//g;
    $Config{'env_report'} =~ s/(\s+|\n)?,(\s+|\n)?/,/g;
    $Config{'env_report'} =~ s/(\s+)?\n+(\s+)?//g;
    $Config{'print_config'} =~ s/(\s+|\n)?,(\s+|\n)?/,/g;
    $Config{'print_config'} =~ s/(\s+)?\n+(\s+)?//g;

    # Split the configuration variables into individual field names.         #
    @Required = split(/,/,$Config{'required'});
    @Env_Report = split(/,/,$Config{'env_report'});
    @Print_Config = split(/,/,$Config{'print_config'});

    # ACCESS CONTROL FIX: Only allow ENV variables in @valid_ENV in          #
    # @Env_Report for security reasons.                                      #
    foreach $env_item (@Env_Report) {
        foreach $valid_item (@valid_ENV) {
            if ( $env_item eq $valid_item ) { push(@temp_array, $env_item) }
        }
    } 
    @Env_Report = @temp_array;
}

sub check_required {

    # Localize the variables used in this subroutine.                        #
    local($require, @error);

    # The following insures that there were no newlines in any fields which  #
    # will be used in the header.                                            #
    if ($Config{'subject'} =~ /(\n|\r)/m || $Config{'email'} =~ /(\n|\r)/m ||
        $Config{'realname'} =~ /(\n|\r)/m || $Config{'recipient'} =~ /(\n|\r)/m) {
        &error('invalid_headers');
    }

    if (!$Config{'recipient'}) {
        if (!defined(%Form)) { &error('bad_referer') }
        else                 { &error('no_recipient') }
    }
    else {
        # This block of code requires that the recipient address end with    #
        # a valid domain or e-mail address as defined in @recipients.        #
        $valid_recipient = 0;
        foreach $send_to (split(/,/,$Config{'recipient'})) {
            foreach $recipient (@recipients) {
                if ($send_to =~ /$recipient$/i) {
                    push(@send_to,$send_to); last;
                }
            }
        }
        if ($#send_to < 0) { &error('no_recipient') }
        $Config{'recipient'} = join(',',@send_to);
    }

    # For each require field defined in the form:                            #
    foreach $require (@Required) {

        # If the required field is the email field, the syntax of the email  #
        # address if checked to make sure it passes a valid syntax.          #
        if ($require eq 'email' && !&check_email($Config{$require})) {
            push(@error,$require);
        }

        # Otherwise, if the required field is a configuration field and it   #
        # has no value or has been filled in with a space, send an error.    #
        elsif (defined($Config{$require})) {
            if ($Config{$require} eq '') { push(@error,$require); }
        }

        # If it is a regular form field which has not been filled in or      #
        # filled in with a space, flag it as an error field.                 #
        elsif (!defined($Form{$require}) || $Form{$require} eq '') {
            push(@error,$require);
        }
    }

    # If any error fields have been found, send error message to the user.   #
    if (@error) { &error('missing_fields', @error) }
}

sub return_html {
    # Local variables used in this subroutine initialized.                   #
    local($key,$sort_order,$sorted_field);

    # Now that we have finished using form values for any e-mail related     #
    # reasons, we will convert all of the form fields and config values      #
    # to remove any cross-site scripting security holes.                     #
    local($field);
    foreach $field (keys %Config) {
        $safeConfig{$field} = &clean_html($Config{$field});
    }

    foreach $field (keys %Form) {
        $Form{$field} = &clean_html($Form{$field});
    }


    # If redirect option is used, print the redirectional location header.   #
    if ($Config{'redirect'}) {
        print "Location: $safeConfig{'redirect'}\n\n";
    }

    # Otherwise, begin printing the response page.                           #
    else {

        # Print HTTP header and opening HTML tags.                           #
        print "Content-type: text/html\n\n";
        print "<html>\n <head>\n";

        # Print out title of page                                            #
        if ($Config{'title'}) { print "<title>$safeConfig{'title'}</title>\n" }
        else                  { print "<title>Thank You</title>\n"        }

        print " </head>\n <body";

        # Get Body Tag Attributes                                            #
        &body_attributes;

        # Close Body Tag                                                     #
        print ">\n  <center>\n";

        # Print custom or generic title.                                     #
        if ($Config{'title'}) { print "<h1>$safeConfig{'title'}</h1>\n" }
        else { print "<h1>Thank You For Filling Out This Form</h1>\n" }

        print "</center>\n";

        print "Below is what you submitted to $safeConfig{'recipient'} on ";
        print "$date<p><hr size=1 width=75\%><p>\n";

        # If a sort order is specified, sort the form fields based on that.  #
        if ($Config{'sort'} =~ /^order:.*,.*/) {

            # Set the temporary $sort_order variable to the sorting order,   #
            # remove extraneous line breaks and spaces, remove the order:    #
            # directive and split the sort fields into an array.             #
            $sort_order = $Config{'sort'};
            $sort_order =~ s/(\s+|\n)?,(\s+|\n)?/,/g;
            $sort_order =~ s/(\s+)?\n+(\s+)?//g;
            $sort_order =~ s/order://;
            @sorted_fields = split(/,/, $sort_order);

            # For each sorted field, if it has a value or the print blank    #
            # fields option is turned on print the form field and value.     #
            foreach $sorted_field (@sorted_fields) {
                local $sfname = &clean_html($sorted_field);

                if ($Config{'print_blank_fields'} || $Form{$sorted_field} ne '') {
                    print "<b>$sfname:</b> $Form{$sorted_field}<p>\n";
                }
            }
        }

        # Otherwise, use the order the fields were sent, or alphabetic.      #
        else {

            # Sort alphabetically if requested.
            if ($Config{'sort'} eq 'alphabetic') {
                @Field_Order = sort @Field_Order;
            }

            # For each form field, if it has a value or the print blank      #
            # fields option is turned on print the form field and value.     #
            foreach $field (@Field_Order) {
                local $fname = &clean_html($field);

                if ($Config{'print_blank_fields'} || $Form{$field} ne '') {
                    print "<b>$fname:</b> $Form{$field}<p>\n";
                }
            }
        }

        print "<p><hr size=1 width=75%><p>\n";

        # Check for a Return Link and print one if found.                    #
        if ($Config{'return_link_url'} && $Config{'return_link_title'}) {
            print "<ul>\n";
            print "<li><a href=\"$safeConfig{'return_link_url'}\">$safeConfig{'return_link_title'}</a>\n";
            print "</ul>\n";
        }

        # Print the page footer.                                             #
        print <<"(END HTML FOOTER)";
        <hr size=1 width=75%><p> 
        <center><font size=-1>Provided by <a href="http://northernflame.com">Northern Flame</a></font></center>
        </body>
       </html>
(END HTML FOOTER)
    }
}

sub send_mail {
    # Localize variables used in this subroutine.                            #
    local($print_config,$key,$sort_order,$sorted_field,$env_report);

    # Open The Mail Program
    open(MAIL,"|$mailprog");

    print MAIL "To: $Config{'recipient'}\n";
    print MAIL "From: $Config{'email'} ($Config{'realname'})\n";

    # Check for Message Subject
    if ($Config{'subject'}) { print MAIL "Subject: $Config{'subject'}\n\n" }
    else                    { print MAIL "Subject: WWW Form Submission\n\n" }

    print MAIL "Below is the result of your feedback form.  It was submitted by\n";
    print MAIL "$Config{'realname'} ($Config{'email'}) on $date\n";
    print MAIL "-" x 75 . "\n\n";

    if (@Print_Config) {
        foreach $print_config (@Print_Config) {
            if ($Config{$print_config}) {
                print MAIL "$print_config: $Config{$print_config}\n\n";
            }
        }
    }

    # If a sort order is specified, sort the form fields based on that.      #
    if ($Config{'sort'} =~ /^order:.*,.*/) {

        # Remove extraneous line breaks and spaces, remove the order:        #
        # directive and split the sort fields into an array.                 #
        local $sort_order = $Config{'sort'};
        $sort_order =~ s/(\s+|\n)?,(\s+|\n)?/,/g;
        $sort_order =~ s/(\s+)?\n+(\s+)?//g;
        $sort_order =~ s/order://;
        @sorted_fields = split(/,/, $sort_order);

        # For each sorted field, if it has a value or the print blank        #
        # fields option is turned on print the form field and value.         #
        foreach $sorted_field (@sorted_fields) {
            if ($Config{'print_blank_fields'} || $Form{$sorted_field} ne '') {
                print MAIL "$sorted_field: $Form{$sorted_field}\n\n";
            }
        }
    }

    # Otherwise, print fields in order they were sent or alphabetically.     #
    else {

        # Sort alphabetically if specified:                                  #
        if ($Config{'sort'} eq 'alphabetic') {
            @Field_Order = sort @Field_Order;
        }

        # For each form field, if it has a value or the print blank          #
        # fields option is turned on print the form field and value.         #
        foreach $field (@Field_Order) {
            if ($Config{'print_blank_fields'} || $Form{$field} ne '') {
                print MAIL "$field: $Form{$field}\n\n";
            }
        }
    }

    print MAIL "-" x 75 . "\n\n";

    # Send any specified Environment Variables to recipient.                 #
    foreach $env_report (@Env_Report) {
        if ($ENV{$env_report}) {
            print MAIL "$env_report: $ENV{$env_report}\n";
        }
    }

    close (MAIL);
}

sub check_email {
    # Initialize local email variable with input to subroutine.              #
    $email = $_[0];

    # If the e-mail address contains:                                        #
    if ($email =~ /(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/ ||

        # the e-mail address contains an invalid syntax.  Or, if the         #
        # syntax does not match the following regular expression pattern     #
        # it fails basic syntax verification.                                #

        $email !~ /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z0-9]+)(\]?)$/) {

        # Basic syntax requires:  one or more characters before the @ sign,  #
        # followed by an optional '[', then any number of letters, numbers,  #
        # dashes or periods (valid domain/IP characters) ending in a period  #
        # and then 2 or 3 letters (for domain suffixes) or 1 to 3 numbers    #
        # (for IP addresses).  An ending bracket is also allowed as it is    #
        # valid syntax to have an email address like: user@[255.255.255.0]   #

        # Return a false value, since the e-mail address did not pass valid  #
        # syntax.                                                            #
        return 0;
    }

    else {

        # Return a true value, e-mail verification passed.                   #
        return 1;
    }
}

# This was added into v1.91 to further secure the recipients array.  Now, by #
# default it will assume that valid recipients include only users with       #
# usernames A-Z, a-z, 0-9, _ and - that match your domain exactly.  If this  #
# is not what you want, you should read more detailed instructions regarding #
# the configuration of the @recipients variable in the documentation.        #
sub fill_recipients {
    local(@domains) = @_;
    local($domain,@return_recips);

    foreach $domain (@domains) {
        if ($domain =~ /^\d+\.\d+\.\d+\.\d+$/) {
            $domain =~ s/\./\\\./g;
            push(@return_recips,'^[\w\-\.]+\@\[' . $domain . '\]');
        }
        else {
            $domain =~ s/\./\\\./g;
            $domain =~ s/\-/\\\-/g;
            push(@return_recips,'^[\w\-\.]+\@' . $domain);
        }
    }

    return @return_recips;
}

# This function will convert <, >, & and " to their HTML equivalents.        #
sub clean_html {
    local $value = $_[0];
    $value =~ s/\&/\&/g;
    $value =~ s/</\</g;
    $value =~ s/>/\>/g;
    $value =~ s/"/\"/g;
    return $value;
}

sub body_attributes {
    # Check for Background Color
    if ($Config{'bgcolor'}) { print " bgcolor=\"$safeConfig{'bgcolor'}\"" }

    # Check for Background Image
    if ($Config{'background'}) { print " background=\"$safeConfig{'background'}\"" }

    # Check for Link Color
    if ($Config{'link_color'}) { print " link=\"$safeConfig{'link_color'}\"" }

    # Check for Visited Link Color
    if ($Config{'vlink_color'}) { print " vlink=\"$safeConfig{'vlink_color'}\"" }

    # Check for Active Link Color
    if ($Config{'alink_color'}) { print " alink=\"$safeConfig{'alink_color'}\"" }

    # Check for Body Text Color
    if ($Config{'text_color'}) { print " text=\"$safeConfig{'text_color'}\"" }
}

sub error { 
    # Localize variables and assign subroutine input.                        #
    local($error,@error_fields) = @_;
    local($host,$missing_field,$missing_field_list);

    if ($error eq 'bad_referer') {
        if ($ENV{'HTTP_REFERER'} =~ m|^https?://([\w\.]+)|i) {
            $host = $1;
            my $referer = &clean_html($ENV{'HTTP_REFERER'});
            print <<"(END ERROR HTML)";
Content-type: text/html

<html>
<head>
  <title>Bad Referrer - Access Denied</title>
</head>
<body bgcolor=#FFFFFF text=#000000>
  <center>
   <table border=0 width=600 bgcolor=#9C9C9C>
    <tr><th><font size=+2>Bad Referrer - Access Denied</font></th></tr>
   </table>
   <table border=0 width=600 bgcolor=#CFCFCF>
    <tr><td>The form attempting to use
     <a href="http://www.scriptarchive.com/formmail.html">FormMail</a>
     resides at <tt>$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 
     <a href="http://www.scriptarchive.com/readme/formmail.html">README</a> file.<p>

     Add <tt>'$host'</tt> to your <tt><b>\@referers</b></tt> array.<hr size=1>
     <center><font size=-1>
      Provided by <a href="http://northernflame.com">Northern Flame</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</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>Provided by <A href="http://northernflame.com">Northern Flame</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>
      Provided by <A href="http://northernflame.com">Northern Flame</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: Bad/No Recipient</title>
</head>
<body bgcolor=#FFFFFF text=#000000>
  <center>
   <table border=0 width=600 bgcolor=#9C9C9C>
    <tr><th><font size=+2>Error: Bad/No Recipient</font></th></tr>
   </table>
   <table border=0 width=600 bgcolor=#CFCFCF>
    <tr><td>There was no recipient or an invalid recipient specified in the data sent to FormMail.  Please
     make sure you have filled in the <tt>recipient</tt> form field with an e-mail
     address that has been configured in <tt>\@recipients</tt>.  More information on filling in <tt>recipient</tt> form fields and variables can be
     found in the <a href="http://www.scriptarchive.com/readme/formmail.html">README</a> file.<hr size=1>

     <center><font size=-1>
      Provided by <a href="http://northernflame.com">Northern Flame</a>
     </font></center>
    </td></tr>
   </table>
  </center>
</body>
</html>
(END ERROR HTML)
    }

    elsif ($error eq 'invalid_headers') {
            print <<"(END ERROR HTML)";
Content-type: text/html

<html>
<head>
  <title>Error: Bad Header Fields</title>
</head>
<body bgcolor=#FFFFFF text=#000000>
  <center>
   <table border=0 width=600 bgcolor=#9C9C9C>
    <tr><th><font size=+2>Error: Bad Header Fields</font></th></tr>
   </table>
   <table border=0 width=600 bgcolor=#CFCFCF>
    <tr><td>The header fields, which include <tt>recipient</tt>, <tt>email</tt>, <tt>realname</tt> and <tt>subject</tt> were
     filled in with invalid values. You may not include any newline characters in these parameters.
     More information on filling in these form fields and variables can be
     found in the <a href="http://www.scriptarchive.com/readme/formmail.html">README</a> file.<hr size=1>

     <center><font size=-1>
      Provided by<a href="http://northernflame.com">Northern Flame</a>
     </font></center>
    </td></tr>
   </table>
  </center>
</body>
</html>
(END ERROR HTML)
    }

    elsif ($error eq 'missing_fields') {
        if ($Config{'missing_fields_redirect'}) {
            print "Location: " . &clean_html($Config{'missing_fields_redirect'}) . "\n\n";
        }
        else {
            foreach $missing_field (@error_fields) {
                $missing_field_list .= "<li>" . &clean_html($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>
      Provided by <A href="http://northernflame.com">Northern Flame</a>
     </font></center>
    </td></tr>
   </table>
  </center>
</body>
</html>
(END ERROR HTML)
        }
    }

    exit;
}

At the top where it says,

#!/usr/bin/perl

you need to change this to the location of your Perl folder,

if you do not know what it is, ask your web host provider

Where it says,

$mailprog = '/usr/sbin/sendmail -i -t';

this is the location of your send mail program,

if you do not know what it is,

ask your web host provider

Now, your form should look like this:

<form name="formmail"  action="cgi-bin/formmail.cgi" method="post">
		        <input type=hidden name="redirect" value="http://northernflame.com/thanks.html">
	            <input type=hidden name="recipient" value="you@domain.com">
	            <input type=hidden name="required" value="email,realname,subject,message">
			    <p><b><font color="red">*</font>Full Name:</b><br>
		        <input type=text name="realname" size="35" value=""></p>
			    <p><b><font color="red">*</font>Your Email Address:</b><br>
                    <input type=text name="email" size="35" value=""></p>
			    <p><b>Phone Number (optional):</b><br>
	            <input type=text name="phone" size="45" value=""></p>
			    <p><b><font color="red">*</font>Subject:</b><br>
	            <input type=text name="subject" size="45" value=""></p>
                    <p><b><font color="red">*</font>Message:</b><br>
			    <textarea name="message" rows="7" cols="35" class="text_field"></textarea>
			    <p><input type="submit" value="Send Email">
			    <input type="reset" value="Reset Form"></p>
		    </form>

Where it says:

<input type=hidden name="redirect" value="thanks.html">

This is where they are redirected to after they complete your form,

if you choose to delete this, it already has a default thank you page inside the Perl script

where it says,

		            <input type=hidden name="recipient" value="you@domain.com">

enter the e-mail address you want to recieve the e-mail

where it says,

		            <input type=hidden name="required" value="email,realname,subject,message">

These are the required fields, you can add or delete fields from this

Now I have added a link to my website on the script,

this will only be show if you decide to use the default thank you page

inserted in the script, and if their is an error when completing the form,

they will see the link on the error page,

you can feel free to take off that link but I just put it in there incase

any of you guys dont mind linking to my page

If there are any questions you can message me and I will help you

trq · June 18, 2007

If anyone out there wants to use a feedback form that is more secure than
PHP

What makes this more secure than using a PHP solution?

effigy · June 18, 2007

...but it is way more secure in PHP

What's your reasoning for this?

THEoriginalDAG22 · June 19, 2007

Reason for what?

a more secure form,

well I dont really need a more secure form but some people might and i was bored.....

Also, it could help prevent spam,

and prevent other people from hacking your script and making it so they recieve your mail,

so if anyone has been having any problems with this kind of stuff,

this is an alternative....

THEoriginalDAG22 · June 19, 2007

I just explained it in the other Perl subject up,

Reason for what?
a more secure form,

well I dont really need a more secure form but some people might and i was bored.....

Also, it could help prevent spam,

and prevent other people from hacking your script and making it so they recieve your mail,

so if anyone has been having any problems with this kind of stuff,

this is an alternative....

can you delete the other Perl subject so this is less confusing?

effigy · June 19, 2007

No--Why do you think PHP is more secure than Perl?

Daniel0 · June 19, 2007

Which solution is the most secure depends on how the scripts are coded.

Daniel0 · June 19, 2007

I just explained it in the other Perl subject up,

Reason for what?
a more secure form,

well I dont really need a more secure form but some people might and i was bored.....

Also, it could help prevent spam,

and prevent other people from hacking your script and making it so they recieve your mail,

so if anyone has been having any problems with this kind of stuff,

this is an alternative....

can you delete the other Perl subject so this is less confusing?

He asked why it would be more secure than a contact form written in PHP. You didn't really answer that.

THEoriginalDAG22 · June 20, 2007

o lol,

well im not no Perl expert but perl is a hacking language

and knowing hacking languages like perl you can find certain strings

on a PHP form that will enable you to hack it,

but the Perl script has certain things inside of it that is like a counter attack,

for example,

it asks for you IP,

and it does this so that the form will only work on your site,

and it also asks you to name some domains,

this is becuase the domains that you enter will be the ones that

e-mails can be sent to,

for example if you type in 'domain.com'

it will only send e-mails to anyname@domain.com

this way people cant mess with your script so that they can recieve your messages

THEoriginalDAG22 · June 20, 2007

i said perl is more secure than php,

and check the other topic titled "Perl Script"

Daniel0 · June 20, 2007

Look, that's bullshit. There is no such thing as a hacking language. Also, neither of the two languages are more secure than the other. It's simply a matter of how you make it. If you are more proficient in Perl, then it might be likely that you are also able to create more secure Perl scripts than secure PHP scripts, but that doesn't make the language itself more secure. You can do the things you mentioned in PHP as well.

Also, the referring URL can be forged. That information comes from the user itself and can therefore not be relied on for security.

Also, in the shebang line, it's not the path to your "Perl folder" but to the Perl binary. It's an instruction to Unix-like operating systems which interpreter that should be used.

THEoriginalDAG22 · June 21, 2007

it doesnt really matter how you make the PHP script,

there are still ways to hack it,

and im sure there are ways of hacking the Perl script too,

but its harder to do....

and i didnt mean to say that Perl is a "hacking language",

but it does help to know Perl....

trq · June 21, 2007

Give it up buddy, you have no idea what your talking about.

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