#!/usr/bin/perl

# Guestbook for the World Wide Web
# Created by Matt Wright           Version 2.3.1
# Created on: 4/21/95      Last Modified: 10/29/95

#############################################################################
# Set Variables


$guestlog = "/data/Lkr_Usr_/nwcc/public_html/adlog.html";
$cgiurl = "http://www.pionet.net/pionet-cgi-bin/users/nwcc/guestbook.pl";
$date_command = "/usr/bin/date";

# Set Your Options:
$mail = 1;              # 1 = Yes; 0 = No
$uselog = 1;            # 1 = Yes; 0 = No
$linkmail = 1;          # 1 = Yes; 0 = No
$separator = 1;         # 1 = <hr>; 0 = <p>
$redirection = 1;       # 1 = Yes; 0 = No
$entry_order = 1;       # 1 = Newest entries added first;
                        # 0 = Newest Entries added last.
$remote_mail = 1;       # 1 = Yes; 0 = No
$allow_html = 1;        # 1 = Yes; 0 = No
$line_breaks = 0;	# 1 = Yes; 0 = No

# If you answered 1 to $mail or $remote_mail you will need to fill out 
# these variables below:
$mailprog = '/usr/sbin/sendmail';
$recipient = 'nwcc@pionet.net';

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


# Get the Date for Entry
$date = `$date_command +"%A, %B %d, %Y at %T (%Z)"`; chop($date);
$shortdate = `$date_command +"%D %T %Z"`; chop($shortdate);

# Get the input
read(STDIN, $buffer, $ENV{'CONTENT_LENGTH'});

# Split the name-value pairs
@pairs = split(/&/, $buffer);

foreach $pair (@pairs) {
   ($name, $value) = split(/=/, $pair);

   # Un-Webify plus signs and %-encoding
   $value =~ tr/+/ /;
   $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;
   $value =~ s/<!--(.|\n)*-->//g;

   if ($allow_html != 1) {
      $value =~ s/<([^>]|\n)*>//g;
   }
		
   $FORM{$name} = $value;
}

# Print the Blank Response Subroutines
&no_comments unless $FORM{'comments'};
&no_name unless $FORM{'realname'};



# Begin the Editing of the Guestbook File
open (FILE,"$FORM{'catreal'}") || die "Can't Open $FORM{'catreal'}: $!\n";
@LINES=<FILE>;
close(FILE);
$SIZE=@LINES;

# Open Link File to Output
open (GUEST,">$FORM{'catreal'}") || die "Can't Open $FORM{'catreal'}: $!\n";

for ($i=0;$i<=$SIZE;$i++) {
   $_=$LINES[$i];
   if (/<!--begin-->/) { 

      if ($entry_order eq '1') {
         print GUEST "<!--begin-->\n";
      }
   
      if ($line_breaks == 1) {
         $FORM{'comments'} =~ s/\cM\n/<br>\n/g;
      }

      print GUEST "<b>$FORM{'comments'}</b><br>\n";

      if ($FORM{'url'}) {
         print GUEST "<a href=\"$FORM{'url'}\">$FORM{'realname'}</a>";
      }
      else {
         print GUEST "$FORM{'realname'}";
      }

      if ( $FORM{'username'} ){
         if ($linkmail eq '1') {
            print GUEST " \&lt;<a href=\"mailto:$FORM{'username'}\">";
            print GUEST "$FORM{'username'}</a>\&gt;";
         }
         else {
            print GUEST " &lt;$FORM{'username'}&gt;";
         }
      }

      print GUEST "<br>\n";

      if ( $FORM{'city'} ){
         print GUEST "$FORM{'city'},";
      }
     
      if ( $FORM{'state'} ){
         print GUEST " $FORM{'state'}";
      }

      if ( $FORM{'country'} ){
         print GUEST " $FORM{'country'}";
      }

      if ($separator eq '1') {
         print GUEST " - $date<hr>\n\n";
      }
      else {
         print GUEST " - $date<p>\n\n";
      }

      if ($entry_order eq '0') {
         print GUEST "<!--begin-->\n";
      }

   }
   else {
      print GUEST $_;
   }
}

close (GUEST);

# Log The Entry

if ($uselog eq '1') {
   &log('entry');
}


#########
# Options

# Mail Option
if ($mail eq '1') {
   open (MAIL, "|$mailprog $recipient") || die "Can't open $mailprog!\n";

   print MAIL "Reply-to: $FORM{'username'} ($FORM{'realname'})\n";
   print MAIL "From: $FORM{'username'} ($FORM{'realname'})\n";
   print MAIL "Subject: New Ads\n\n";
   print MAIL "You have a new entry on NWCC:\n\n";
   print MAIL "------------------------------------------------------\n";
   print MAIL "$FORM{'comments'}\n";
   print MAIL "$FORM{'realname'}";

   if ( $FORM{'username'} ){
      print MAIL " <$FORM{'username'}>";
   }

   print MAIL "\n";

   if ( $FORM{'city'} ){
      print MAIL "$FORM{'city'},";
   }

   if ( $FORM{'state'} ){
      print MAIL " $FORM{'state'}";
   }

   if ( $FORM{'country'} ){
      print MAIL " $FORM{'country'}";
   }

   print MAIL " - $date\n";
   print MAIL "------------------------------------------------------\n";

   close (MAIL);
}

if ($remote_mail eq '1' && $FORM{'username'}) {
   open (MAIL, "|$mailprog -t") || die "Can't open $mailprog!\n";

   print MAIL "To: $FORM{'username'}\n";
   print MAIL "From: $recipient\n";
   print MAIL "Subject: New Ads\n\n";
   print MAIL "Thank you for placing an ad on NWCC.\n\n";
   print MAIL "------------------------------------------------------\n";
   print MAIL "$FORM{'comments'}\n";
   print MAIL "$FORM{'realname'}";

   if ( $FORM{'username'} ){
      print MAIL " <$FORM{'username'}>";
   }

   print MAIL "\n";

   if ( $FORM{'city'} ){
      print MAIL "$FORM{'city'},";
   }

   if ( $FORM{'state'} ){
      print MAIL " $FORM{'state'}";
   }

   if ( $FORM{'country'} ){
     print MAIL " $FORM{'country'}";
   }

   print MAIL " - $date\n";
   print MAIL "------------------------------------------------------\n";

   close (MAIL);
}

# Print Out Initial Output Location Heading
if ($redirection eq '1') {
   print "Location: $FORM{'caturl'}\n\n";
}
else { 
   &no_redirection;
}

#######################
# Subroutines

sub no_comments {
   print "Content-type: text/html\n\n";
   print "<html><head><title>No Description</title></head>\n";
   print "<body><h1>Your Description appears to be blank</h1>\n";
   print "The Description section in the fillout form appears\n";
   print "to be blank and therefore your Ad information was not\n";
   print "posted.  Please <A href=\"$FORM{'formurl'}\">return </A>\n";
   print "to the Ad Submission Page and fill in a description.\n";
   print "Thank You! ";
   print "<HR>\n";
   print "Return to the <a href=\"$FORM{'caturl'}\">Ads</a>.";
   print "\n</body></html>\n";

   # Log The Error
   if ($uselog eq '1') {
      &log('no_comments');
   }

   exit;
}

sub no_name {
   print "Content-type: text/html\n\n";
   print "<html><head><title>No Name</title></head>\n";
   print "<body><h1>Your Name appears to be blank</h1>\n";
   print "The Name Section in the fillout form appears to\n";
   print "be blank and therefore your ad infromation was not\n";
   print "posted.  Please <A href=\"$FORM{'formurl'}\">return </A>\n";
   print "to the Ad Submission Page and fill in your name.\n";
   print "<HR>\n";
   print "Return to the <a href=\"$FORM{'caturl'}\">Ads</a>.";
   print "\n</body></html>\n";

   # Log The Error
   if ($uselog eq '1') {
      &log('no_name');
   }

   exit;
}

# Log the Entry or Error
sub log {
   $log_type = $_[0];
   open (LOG, ">>$guestlog");
   if ($log_type eq 'entry') {
      print LOG "$ENV{'REMOTE_HOST'} - [$shortdate]<br>\n";
   }
   elsif ($log_type eq 'no_name') {
      print LOG "$ENV{'REMOTE_HOST'} - [$shortdate] - ERR: No Name<br>\n";
   }
   elsif ($log_type eq 'no_comments') {
      print LOG "$ENV{'REMOTE_HOST'} - [$shortdate] - ERR: No ";
      print LOG "Comments<br>\n";
   }
}

# Redirection Option
sub no_redirection {

   # Print Beginning of HTML
   print "Content-Type: text/html\n\n";
   print "<html><head><title>Thank You</title></head>\n";
   print "<body><h1>Thank You For Placing An Ad On NWCC</h1>\n";

   # Print Response
   print "Thank you for placing an ad on NWCC.  Your entry has\n";
   print "been added.<hr>\n";
   print "Here is what you submitted:<p>\n";
   print "<b>$FORM{'comments'}</b><br>\n";

   if ($FORM{'url'}) {
      print "<a href=\"$FORM{'url'}\">$FORM{'realname'}</a>";
   }
   else {
      print "$FORM{'realname'}";
   }

   if ( $FORM{'username'} ){
      if ($linkmail eq '1') {
         print " &lt;<a href=\"mailto:$FORM{'username'}\">";
         print "$FORM{'username'}</a>&gt;";
      }
      else {
         print " &lt;$FORM{'username'}&gt;";
      }
   }

   print "<br>\n";

   if ( $FORM{'city'} ){
      print "$FORM{'city'},";
   }

   if ( $FORM{'state'} ){
      print " $FORM{'state'}";
   }

   if ( $FORM{'country'} ){
      print " $FORM{'country'}";
   }

   print " - $date<p>\n";

   # Print End of HTML
   print "<hr>\n";
   print "<a href=\"$FORM{'caturl'}\">Back to the Ads</a>\n";         print "- You may need to reload it when you get there to see your\n";
   print "entry.\n";
   print "</body></html>\n";

   exit;
}