#!/usr/bin/perl

use strict;
use CGI qw/:standard/;
use CGI::Carp qw(fatalsToBrowser carpout);

###########################################################################
#                                                                         #
#  addalias version 2.0 by deadlock (deadlock@cheeseheadz.net)            #
#                                                                         #
#  This script can be used on a webpage for users to enter and edit their #
#  own info for the pisg ircstats program by mbrix.                       #
#                                                                         #
#  addalias v2+ is based on the original addalias program by Doomshammer  #
#                                                                         #
###########################################################################

######################
### Config section ###
######################

# File locations:

my $pisg_config="/path/to/pisg.cfg";

# Page layout:

my $c_bgcolor="#FFFFFF";
my $c_text="#000000";
my $c_link="blue";
my $c_vlink="#C0C0C0";
my $c_alink="#C0FFC0";
my $c_border="#FFFFFF";

my $title="IRC statistics - user addition page";

# Text on the main page

my $txthead1="In this form you can enter the settings (aliases, link and user picture) for your nickname in the IRC-stats.";
my $txthead2="Nicknames are allowed only once.";
my $txtnick="Nickname";
my $txtalias="Alias(es)";
my $txturl="URL/E-Mail";
my $txtpic="Userpic";
my $txtsex="Sex";
my $txtmale="M";
my $txtfemale="F";
my $txtignore="Ignore me";
my $btnsubmit="Submit";
my $btnupdate="Update";
my $txtfoot1="To update your settings, just enter your nickname and click Submit to retrieve your current settings.";
my $txthelp="For help on this form click <a href=\"addalias.pl/help\" target=\"_blank\">here</a>.";
my $txtupdate="These are your current settings. Edit them where needed and click Update to update your info.";
my $txtaddok="Your nickname was successfully added.:";
my $txtignoreon="You activated ignore and will not appear in the stats.";
my $txtupdateok="Your info was successfully updated.:";

# Helptext:

my $nickhelp="Enter the name you want to use in the stats here.";
my $aliashelp="Add all aliases you use here, seperated by spaces, so they will be joined in the stats. A * is allowed as a wildcard. For example: MyNick[Zzz], MyNick-afk and MyNick-work could be entered as 'MyNick[Zzz] MyNick-*' or just as 'MyNick*'";
my $urlhelp="You can enter a webpage or e-mail adress here to be linked to your nick in the stats.";
my $pichelp="If you enter a link to a picture here it will be added to your stats on the page.";
my $sexhelp="This setting is used to determine if lines in the stats should read 'his' or 'her' when referring to you.";
my $ignorehelp="If you don't want to be included in the stats, select this option.";


###################################
### End config section          ###
### do not edit below this line ###
###################################

# Main program

my $path = path_info();
$path =~ s!^/!!;
my (%oldnicks, @users, @nick);
my ($frm_nick, $frm_alias, $frm_link, $frm_pic, $frm_sex, $frm_ignore);
my ($old_nick, $old_alias, $old_link, $old_pic, $old_sex, $old_ignore);
my ($old_sexm, $old_sexf, $old_ignr);
my ($cfg, $fnd);
my ($submitbtn, $frmaction);

htmlheader();

if (!$path) {
   $submitbtn = $btnsubmit;
   $frmaction="\"addalias.pl/input\"";
   $txtupdate = ""; 
   mainpage();
}

elsif ($path eq 'help') {
   helppage();
}

elsif ($path eq 'input') {
   readparams();
   $cfg = read_config();
      if ($cfg ne "1") {
        $fnd = check_if_found();
        if ($fnd eq "1") {
          $submitbtn = $btnupdate;
          $frmaction="\"update\"";
          if ($old_sex eq "m" or $old_sex eq "M"){
            $old_sexm = "checked";
          }
          elsif ($old_sex eq "f" or $old_sex eq "F"){
            $old_sexf = "checked";
          }
          if ($old_ignore eq "1"){
            $old_ignr = "checked";
          }
          $txtfoot1="";
          mainpage();
        }
        else {
          addinfo();      
        }
      }
      else {
        addinfo();
      }
}

elsif ($path eq 'update') {
   readparams();
   $cfg = read_config();
   updateinfo();
}

else {
print "Illegal calling of script<br>\n";
}

htmlfooter();



# Subs

sub htmlheader
{
print <<HTML
Content-Type: text/html


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 <head>
  <title>$title</title>
 </head>
 <body bgcolor="$c_bgcolor" text="$c_text" link="$c_link" vlink="$c_vlink" alink="$c_alink">
HTML

}


sub htmlfooter
{
print <<HTML
 </body>
</html>
HTML
}


sub mainpage
{
print <<HTML
  <p>$txthead1<br> $txthead2</p>
  $txtupdate<br>
  <form action=$frmaction method="POST">
   <table width="400" cellpadding="2" cellpadding="2" border="0" style="border: 1px
   ridge $c_border">
    <tr>
     <td><b>$txtnick</b></td>
     <td><input name="nick" type="text" width="30" value="$old_nick"></td>
    </tr>
    <tr>
     <td><b>$txtalias</b></td>
     <td><input name="alias" type="text" width="30" value="$old_alias"></td>
    </tr>
    <tr>
     <td><b>$txturl</b></td>
     <td><input name="link" type="text" width="30" value="$old_link"></td>
    </tr>
    <tr>
     <td><b>$txtpic</b></td>
     <td><input name="pic" type="text" width="30" value="$old_pic"></td>
    </tr>
    <tr>
     <td><b>$txtsex</b></td>
     <td>$txtmale<input type="radio" name="sex" value="m" $old_sexm>$txtfemale<input type="radio" name="sex" value="f" $old_sexf></td>
    </tr>
    <tr>
     <td><b>$txtignore</B></td>
     <td><input type="checkbox" name="ignore" $old_ignr></td>
    </tr>
    <tr>
     <td colspan="2" align="center">
      <input type="submit" value="$submitbtn">
     </td>
    </tr>
   </table>
  </form>
  $txtfoot1<br>
  $txthelp<br>
HTML
}


sub helppage
{
print <<HTML
  <b>$txtnick:</b><br>
  $nickhelp<br>
  <b>$txtalias:</b><br>
  $aliashelp<br>
  <b>$txturl:</b><br>
  $urlhelp<br>
  <b>$txtpic:</b><br>
  $pichelp<br>
  <b>$txtsex:</b><br>
  $sexhelp<br>
  <b>$txtignore:</b><br>
  $ignorehelp<br>
HTML
}

sub readparams
{
   $frm_nick = param('nick');
   $frm_alias = param('alias');
   $frm_link = param('link');
   $frm_pic = param('pic');
   $frm_sex = param('sex');
   $frm_ignore = param('ignore');
}

sub read_config
{
    open(FILE, "<$pisg_config") or die("Error opening pisg config file: $!");
    my $i = 0;
    while(<FILE>) {
        if($_ =~ /^<user/) {
            $users[$i] = $_;
            chomp $users[$i];
            $i++;
        }
    }
    close(FILE);

    my $search = 0;
    $i = 0;
    foreach(@users) {
        if($users[$i] =~ /nick=/) {
            if ($users[$i] =~ /nick="(\S+)"(.*)/) {
                $nick[$i] = $1;
                $oldnicks{$nick[$i]}{'nick'} = $nick[$i];
            }
            if ($users[$i] =~ /alias="(\S+)".*/ or $users[$i] =~ /alias="(.*)"\s.* / or $users[$i] =~ /alias="(.*)">/ ) {
                my $alias = $1;
                $oldnicks{$nick[$i]}{'alias'} = $alias;
            }
            if ($users[$i] =~ /link="(\S+)"(.*)/) {
                my $link = $1;
                $oldnicks{$nick[$i]}{'link'} = $link;
            }
            if ($users[$i] =~ /pic="(\S+)"(.*)/) {
                my $pic = $1;
                $oldnicks{$nick[$i]}{'pic'} = $pic;
            }
            if ($users[$i] =~ /sex="(\S+)"(.*)/) {
                my $sex = $1;
                $oldnicks{$nick[$i]}{'sex'} = $sex;
            }
            if($users[$i] =~ /ignore="(\S+)"(.*)/) {
                my $ignore = $1;
                if($ignore eq "y" or $ignore eq "Y") { 
                    $ignore = 1; 
                } else {
                    $ignore = 0;
                }
                $oldnicks{$nick[$i]}{'ignore'} = $ignore;
            }
        } else {
            $search = 1;
        }
        $i++;
    }
    return $search;
}


sub check_if_found
{

    my $found = 0;
    foreach (@nick) {
        if ($oldnicks{$_}{'nick'} eq $frm_nick) {
            $found = 1;
        }
    }
    if ($found eq "1") {
        $old_nick = $oldnicks{$frm_nick}{'nick'};
        $old_alias = $oldnicks{$frm_nick}{'alias'};
        $old_link = $oldnicks{$frm_nick}{'link'};
        $old_pic = $oldnicks{$frm_nick}{'pic'};
        $old_sex = $oldnicks{$frm_nick}{'sex'};
        $old_ignore = $oldnicks{$frm_nick}{'ignore'};
    }
    return $found;
}

sub addinfo
{
    my $line_to_add = "<user";
    if($frm_nick) {
        $line_to_add .= " nick=\"$frm_nick\"";
    }
    if($frm_alias) {
        $line_to_add .= " alias=\"$frm_alias\"";
    }
    if($frm_link) {
        $line_to_add .= " link=\"$frm_link\"";
    }
    if($frm_pic) {
        $line_to_add .= " pic=\"$frm_pic\"";
    }
    if($frm_sex) {
        $line_to_add .= " sex=\"$frm_sex\"";
    }
    if($frm_ignore eq "on") {
        $line_to_add .= " ignore=\"y\"";
    }

    $line_to_add .= ">";
    
    open(FILE, ">>$pisg_config") or die("Error writing to configfile: $!");
    print FILE "$line_to_add\n";
    close(FILE);

print <<HTML
$txtaddok<br><br>\n
<table>
 <tr>
  <td>$txtnick:</td><td>$frm_nick</td>
 </tr>
HTML
;
    if($frm_alias) { 
        print " <tr>\n";
        print "  <td>$txtalias:</td><td>$frm_alias</td>\n";
        print " </tr>\n";
    }
    if($frm_link) {
        print " <tr>\n";
        if($frm_link =~ /^http:|ftp:/) {
            print "  <td>$txturl:</td><td><a href=\"$frm_link\">$frm_link</a></td>\n";
        }
        elsif ($frm_link =~ /(.*)@(.*).(.*)/) {
            print "  <td>$txturl:</td><td><a href=\"mailto:$frm_link\">$frm_link</a></td>\n";
        }
        else {
            print "  <td>$txturl:</td><td>$frm_link</td>\n";
        }
        print " </tr>\n";
    }
    if($frm_pic) {
        print " <tr>\n";
        print "  <td>$txtpic:</td><td><img src=\"$frm_pic\"></td>\n";
        print " </tr>\n";
    }
    if($frm_sex eq "m") {
        print " <tr>\n";
        print "  <td>$txtsex:</td><td>$txtmale</td>\n";
        print " </tr>\n";
    }
    if($frm_sex eq "f") {
        print " <tr>\n";
        print "  <td>$txtsex:</td><td>$txtfemale</td>\n";
        print " </tr>\n";
    }
    if($frm_ignore eq "on") {
        print " <tr>\n";
        print "  <td>$txtignore:</td><td>$txtignoreon</td>\n";
        print " </tr>\n";
    }
}

sub updateinfo
{
    my $line;
    my $line_to_add = "<user";
    if($frm_nick) {
        $line_to_add .= " nick=\"$frm_nick\"";
    }
    if($frm_alias) {
        $line_to_add .= " alias=\"$frm_alias\"";
    }
    if($frm_link) {
        $line_to_add .= " link=\"$frm_link\"";
    }
    if($frm_pic) {
        $line_to_add .= " pic=\"$frm_pic\"";
    }
    if($frm_sex) {
        $line_to_add .= " sex=\"$frm_sex\"";
    }
    if($frm_ignore eq "on") {
        $line_to_add .= " ignore=\"y\"";
    }

    $line_to_add .= ">";

    open(OLDFILE, "$pisg_config") or die("Error reading configfile: $!");
    &lock_file(*OLDFILE);
    my @lines = <OLDFILE>;
    close(OLDFILE);
    open(NEWFILE, ">$pisg_config") or die("Error updating configfile: $!");
    &lock_file(*NEWFILE);
    foreach $line (@lines) {
       if ($line =~ /^<user.*nick=\"$frm_nick\"/) {
         print NEWFILE "$line_to_add\n"
       }
       else {
         print NEWFILE $line;
       }
    }
    close (NEWFILE);
print <<HTML
$txtupdateok<br><br>\n
<table>
 <tr>
  <td>$txtnick:</td><td>$frm_nick</td>
 </tr>
HTML
;
    if($frm_alias) {
        print " <tr>\n";
        print "  <td>$txtalias:</td><td>$frm_alias</td>\n";
        print " </tr>\n";
    }
    if($frm_link) {
        print " <tr>\n";
        if($frm_link =~ /^http:|ftp:/) {
            print "  <td>$txturl:</td><td><a href=\"$frm_link\">$frm_link</a></td>\n";
        }
        elsif ($frm_link =~ /(.*)@(.*).(.*)/) {
            print "  <td>$txturl:</td><td><a href=\"mailto:$frm_link\">$frm_link</a></td>\n";
        }
        else {
            print "  <td>$txturl:</td><td>$frm_link</td>\n";
        }
        print " </tr>\n";
    }
    if($frm_pic) {
        print " <tr>\n";
        print "  <td>$txtpic:</td><td><img src=\"$frm_pic\"></td>\n";
        print " </tr>\n";
    }
    if($frm_sex eq "m") {
        print " <tr>\n";
        print "  <td>$txtsex:</td><td>$txtmale</td>\n";
        print " </tr>\n";
    }
    if($frm_sex eq "f") {
        print " <tr>\n";
        print "  <td>$txtsex:</td><td>$txtfemale</td>\n";
        print " </tr>\n";
    }
    if($frm_ignore eq "on") {
        print " <tr>\n";
        print "  <td>$txtignore:</td><td>$txtignoreon</td>\n";
        print " </tr>\n";
    }
}

sub lock_file {
    my $lock = 2;
    flock($_[0], $lock);
}