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#!/usr/bin/perl -w
use strict;
use warnings;
use CGI;
use CGI::Carp "fatalsToBrowser";
use LWP::Simple;
use LWP::UserAgent;
use HTTP::Request;
use HTTP::Request::Common qw(GET);
use HTTP::Response;

#______________________________________________________________________________#
# PockBot.pl                      Version 0.01 PRE_RELEASE                     #
# Author                          Dan Adams , (User:PocklingtonDan)            #
# Created 29/11/06                Last Modified 04/12/06                       #
#______________________________________________________________________________#

#______________________________________________________________________________#
# RIGHTS MANAGEMENT ETC                                                        #
#                                                                              #
# The source code for PockBot is supplied solely for the purposes of allowing  #
# other editors to comment on and improve the code, and/or to run the code as  #
# a clone. It may be distributed and modified as required for these purposes.  #
#______________________________________________________________________________#

#______________________________________________________________________________#
# CHANGES STILL TO MAKE                                                        #
#                                                                              #
# - timesouts on larger categories                                             #
# - make it write to wiki talk page for the category in scrollbox              #
# - "PockBot ran successfully" presented even if category non-existent         #
#                                                                              #
# RECENT CHANGES                                                               #
#                                                                              #
# 05.12.06 - Version 0.01 source code released                                 #
#______________________________________________________________________________#


#______________________________________________________________________________#
# WHAT THE SCRIPT DOES                                                         #
#                                                                              #
# This script is a wikipedia bot. It acts as a web spider. Given a wikipedia   #
# category page to start from, it finds all articles listed in that category   #
# as well as all subcategories of that category. For every subcategory it      #
# pulls a list of articles. For all articles retrieved (a list of all articles #
# in that category and its subcategories) it then retrieves the CLASS flag for #
# each page from wikipedia. It then presents these resulsts in tabulated form. #
#                                                                              #
# INTENDED USE                                                                 #
#                                                                              #
# It is intended that this script would be useful to those trying to monitor   #
# all pages within a category for purposes of administration or for a project  #
# in order to monitor which articles need bringing up from stub or start class #
# to full article status.                                                      #
#                                                                              #
# CODE FORMATTING                                                              #
#                                                                              #
# Code is formatted for ease of editing with Textad (www.textpad.com) or       #
# similar editor with colour-coding meta-markup. It may be difficult to scan   #
# using a no-frills text editor.                                               #
#______________________________________________________________________________#


#______________________________________________________________________________#
# MAIN ROUTINE                                                                 #
#______________________________________________________________________________#

use CGI qw(:standard Vars);
my $action = param('action') || 'startBot';

if ($action eq 'intro') {&startBot;}
elsif ($action eq 'disableBot') {&disableBot;}
elsif ($action eq 'enableBot') {&enableBot;}
elsif ($action eq 'getMainCategory') {&getMainCategory;}
else {&error("Unrecognised action request");}
exit;

#______________________________________________________________________________#
# SUBROUTINES                                                                  #
#______________________________________________________________________________#


sub startBot {
    &checkIfBotOnline;
    &logAction("Bot requested");
    &printOnlineHeader;
    print "<p><font face=\"arial\">Please enter the wikipedia Category you wish to process below:</font></p>";
    print "<FORM action=\"http://ccgi.thepaty.plus.com/cgi-bin/PockBot.cgi\" method=\"post\">";
    print "<p><font face=\"arial\">Category:";
    print "<INPUT type=\"text\" style=\"font-family: arial, serif; font-size: 12px;\" size=\"50\" name=\"category_specified\" value=\"Enter category name here!\"></font></p>";
    print "<p><font face=\"arial\"><b>Note: Bot may take up to an hour to run for large categories.</b></font></p>";
    print "<INPUT type=\"hidden\" name=\"action\" value=\"getMainCategory\">";
    print "<INPUT type=\"submit\" value=\"Send\">";
    print " </FORM>";
    &printFooter;
}

#______________________________________________________________________________#

sub getArticlesinCategory {
    my $content_articles = $_[0];
    
    &logAction("Searching for articles in this category ");

   # if its not a wikipedia category page, return empty array
   unless ($content_articles =~ m/<div id="mw-pages">/){
       $content_articles = "";
       my @found_articles = split(/\|/,$content_articles);
       &logAction("Found 0 articles in this category ");
       return (@found_articles);
   }

   # empty array if no articles, else populate with article names
   if ($content_articles =~ m/There are 0 pages in this section of this category/){
       $content_articles = "";
       &logAction("Found 0 articles in this category");
   }
   else {
       $content_articles =~ s/[\s\S]*<div id="mw-pages">//;
       $content_articles =~ s/<\/div>[\s\S]*/<\/div>/;
       $content_articles =~ s/[\s\S]*?<ul>/<ul>/;
       $content_articles =~ s/<h3>[\s\S]*?<\/h3>//g;
       $content_articles =~ s/<ul>//g;
       $content_articles =~ s/<\/ul>//g;
       $content_articles =~ s/<td>//g;
       $content_articles =~ s/<\/td>//g;
       $content_articles =~ s/<\/div>//g;
       $content_articles =~ s/<\/tr>//g;
       $content_articles =~ s/<\/table>//g;
       $content_articles =~ s/<\/li>/|/g;
       $content_articles =~ s/<li>/|/g;
       $content_articles =~ s/\n//g;
       $content_articles =~ s/\|\|/\|/g;
       $content_articles =~ s/<a[\s\S]*?>//g;
       $content_articles =~ s/<\/a>//g;
       $content_articles =~ s/\|$//;
       $content_articles =~ s/^\|//;
       $content_articles =~ s/_/ /g;
       $content_articles =~ s/\s\|/\|/g;
       &logAction("Found 1 or more articles in this category");
   }
   
    my @found_articles = split(/\|/,$content_articles);
    return (@found_articles);
}

#______________________________________________________________________________#


sub getSubCatsinCategory {
    my $content_subcats = $_[0];
    
    &logAction("Searching for subcats in this category");

   # if its not a wikipedia category page, empty array
   unless ($content_subcats =~ m/<div id="mw-subcategories">/){
       $content_subcats = "";
       my @found_subcats = split(/\|/,$content_subcats);
       &logAction("Found 0 subcats in this category");
       return (@found_subcats);
   }

   # empty array if no subcats, else populate with subcat names
   if ($content_subcats =~ m/There are 0 subcategories to this category/){
       $content_subcats = "";
       &logAction("Found 0 subcats in this category");
   }
   else {
       $content_subcats =~ s/[\s\S]*<div id="mw-subcategories">//;
       $content_subcats =~ s/<div id="mw-pages">[\s\S]*//;
       $content_subcats =~ s/<h3>[\s\S]*?<\/h3>//g;
       $content_subcats =~ s/<div[\s\S]*?>//g;
       $content_subcats =~ s/<\/div>//g;
       $content_subcats =~ s/<span[\s\S]*?<\/span>//g;
       $content_subcats =~ s/[\s\S]*?<ul>/<ul>/;
       $content_subcats =~ s/<ul>//g;
       $content_subcats =~ s/<\/ul>//g;
       $content_subcats =~ s/<\/li>/|/g;
       $content_subcats =~ s/<li>/|/g;
       $content_subcats =~ s/<a[\s\S]*?>//g;
       $content_subcats =~ s/<\/a>//g;
       $content_subcats =~ s/\n//g;
       $content_subcats =~ s/\|\|/\|/g;
       $content_subcats =~ s/<td>//g;
       $content_subcats =~ s/<\/td>//g;
       $content_subcats =~ s/<\/tr>//g;
       $content_subcats =~ s/<\/table>//g;
       $content_subcats =~ s/[\s]*?\|/\|/g;
       $content_subcats =~ s/\|$//;
       $content_subcats =~ s/^\|//;
       $content_subcats =~ s/\|\|/\|/g;
       &logAction("Found 1 or more subcats in category $content_subcats");
    }

    my @found_subcats = split(/\|/,$content_subcats);
    return (@found_subcats);
}

#______________________________________________________________________________#

sub processContents {
    my $category = $_[0];
    my $contents = $_[1];
    $category =~ s/_/ /g;

    &logAction("Starting to process category $category");

    #Seperate the page generation from spider work
    use threads;
    use Config;
    
    if ($Config{useithreads}) {
        # We have threads
        
        # Let user know spider is on the job.
        &logAction("Notifying user bot starting");
        &printOnlineHeader;
        print "<h3><font face=\"arial\">PockBot is now running - DO NOT CLOSE THIS WINDOW</font></h3>";
        print "<p><font face=\"arial\">Thank you for using PockBot. You wanted a list of article classes for ";
        print " wikipedia category <a href=\"http://en.wikipedia.org/wiki/Category:$category\">$category</a>.</font></p>";
        print "<p><font face=\"arial\">The content will take some time to generate. When complete, the results will be posted to wikipedia for you.<br>";
        print "In respect for wikipedia's servers, PockBot will only make one read request to wikipedia servers every second<br>";
        print "PockBot can read 3600 pages an hour under ideal network conditions. Large categories may therefore take up to an hour to run</font></p>";
        print "<p><font face=\"arial\"><b>Progress:</b><br>PockBot is running...<br></font></p>";
        &printFooter;
       
        # Set spider to work on requested category, in separate thread
        my $threadForSpidering = threads->new(\&workthread, $category, $contents);
        #$threadForSpidering->detach;
        my @listOfAllArticlesFound = $threadForSpidering->join;
    }
    else {
        &error("PockBot requires threads. This perl installation is not built with threads activated. PockBot cannot run.");
    }
}

#______________________________________________________________________________#

sub removeDuplicates {
    my @articles = @_;
    my @articles_no_duplicates = ();
    
    &logAction("Removing duplicates from found articles list.");
    
    foreach my $suggested_article (@articles) {
        my $already_exists = 0;
        foreach my $existing_article (@articles_no_duplicates) {
            if ($suggested_article eq $existing_article) {
                $already_exists = 1;
            }
        }
        if ($already_exists == 0) {
            push(@articles_no_duplicates, $suggested_article);
        }
    }
    return (@articles_no_duplicates);
}

#______________________________________________________________________________#

sub getAllArticlesIn {
    my @subcats = @_;
    my @new_articles = ();
    
    foreach my $individual_subcat (@subcats) {
    
        &logAction("Searching for new articles in subcat $individual_subcat");
    
        my ($subcategory, $subcategorycontents) = fetchContents($individual_subcat);
        my @found_articles = getArticlesinCategory($subcategorycontents);
        foreach my $found_article (@found_articles) {
            push(@new_articles, $found_article);
        }
    }
    return (@new_articles);
}

#______________________________________________________________________________#

sub getArticleClasses {
    my @articles_no_duplicates = @_;
    my %classes = ();
    
    foreach my $article_title (@articles_no_duplicates) {
        my ($talkpage, $contents) = fetchTalkContents($article_title);
        my $class = "?? (unclassified)";
        
        &logAction("Getting article class for article $article_title");
        
            if ($contents =~ m/[\s\S]*class=Start[\s\S]*/) {
                $class = "Start";
            }
            if ($contents =~ m/[\s\S]*class= Start[\s\S]*/) {
                $class = "Start";
            }
            if ($contents =~ m/[\s\S]*class=Stub[\s\S]*/) {
                $class = "Stub";
            }
            if ($contents =~ m/[\s\S]*class= Stub[\s\S]*/) {
                $class = "Stub";
            }
            if ($contents =~ m/[\s\S]*class=A[\s\S]*/) {
                $class = "A";
            }
            if ($contents =~ m/[\s\S]*class= A[\s\S]*/) {
                $class = "A";
            }
            if ($contents =~ m/[\s\S]*class=B[\s\S]*/) {
                $class = "B";
            }
            if ($contents =~ m/[\s\S]*class= B[\s\S]*/) {
                $class = "B";
            }
            if ($contents =~ m/[\s\S]*class=FA[\s\S]*/) {
                $class = "FA";
            }
            if ($contents =~ m/[\s\S]*class= FA[\s\S]*/) {
                $class = "FA";
            }
        # add details of article class to hash
        $classes{'$article_title'} = $class;
    }
    return (%classes)
}

#______________________________________________________________________________#

sub writeResultsToFile {
    my $category = $_[0];
    my $text_to_print = $_[1];
    my $results_file = '/files/home2/thepaty/cgi-bin/results.htm';
    
    &logAction("Writing bot results to file.");
    
    open(RESULTSFILE,">$results_file") || &error("Cannot open bot results file.");
        flock(RESULTSFILE, 2)  || &error("Cannot lock bot results file.");
            print RESULTSFILE "$text_to_print";
        flock(RESULTSFILE, 8);        
    close (RESULTSFILE);
}

#______________________________________________________________________________#

sub getTimeStamp {
    my @months = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
    my @weekDays = qw(Sun Mon Tue Wed Thu Fri Sat Sun);
    my ($second, $minute, $hour, $dayOfMonth, $month, $yearOffset, $dayOfWeek, $dayOfYear, $daylightSavings) = localtime();
    my $year = 1900 + $yearOffset;
    my $timeNow = "$hour:$minute:$second, $weekDays[$dayOfWeek] $months[$month] $dayOfMonth, $year";
    return ($timeNow);
}

#______________________________________________________________________________#

sub logAction {
    my $actionToLog = $_[0];
    my $log_file = '/files/home2/thepaty/cgi-bin/log.htm';
    my $timeStamp = getTimeStamp();
    
    open(LOGFILE,">>$log_file") || &error("Cannot open log file.");
        flock(LOGFILE, 2)  || &error("Cannot lock log file.");       
            print LOGFILE "$timeStamp: $actionToLog<br>";
        flock(LOGFILE, 8);        
    close (LOGFILE);
}

#______________________________________________________________________________#

sub workthread {

    my $category = $_[0];
    my $contents = $_[1];
    
    &logAction("Starting work thread for category $category");
    
    my @subcats = getSubCatsinCategory($contents);
    my @articles = getArticlesinCategory($contents);
    my $new_subcats_found_this_round = 1;
    my @subcats_searched_aleady = ();

    # Keep searching until no new subcats are found.in any categories searched
    while ($new_subcats_found_this_round > 0) {
     
        $new_subcats_found_this_round = 0;
        my @proposed_extra_subcats = ();
        
        # Perform a search of every category we currently know of
        foreach my $existing_subcat (@subcats) {
            my $already_searched = 0;
            
            # If already searched this category in an earlier pass, skip it.
            foreach my $searched_subcat (@subcats_searched_aleady) {
                if ($existing_subcat eq $searched_subcat) {
                    $already_searched = 1;
                }
            }

            # If not already searched, get all subcats of that category
            if ($already_searched == 0) {
            
                &logAction("Have not searched subcat $existing_subcat already");
                my ($subcategory, $subcategorycontents) = fetchContents($existing_subcat);
                my @additional_subcats = getSubCatsinCategory($subcategorycontents);
                foreach my $proposed_additional_subcat (@additional_subcats) {
                    push(@proposed_extra_subcats, $proposed_additional_subcat);
                    &logAction("Found possible new subcat $proposed_additional_subcat");
                }
                push(@subcats_searched_aleady, $existing_subcat);
            }
            else {
                &logAction("Have searched subcat $existing_subcat already");         
            }
        }

        # If this new found subcat isn't a duplicate of one we already know about...
        foreach my $proposed_new_subcat (@proposed_extra_subcats) {
            my $already_exists = 0;
            foreach my $existing_subcat (@subcats) {
                if ($proposed_new_subcat eq $existing_subcat) {
                    $already_exists = 1;
                }
            }
            
            # then add it to our master list
            if ($already_exists == 0) {
                &logAction("subcat $proposed_new_subcat is a genuinely new subcategory, adding to master list");
                push(@subcats, $proposed_new_subcat);
                $new_subcats_found_this_round++;
            }
            else {
                &logAction("subcat $proposed_new_subcat already existed in master list, ignoring");
            }
        }
        &logAction("$new_subcats_found_this_round new subcats found this round. If greater than zero, should run through again");
    }
    
    # And now get a list of every article in every subcat
    my @new_articles = getAllArticlesIn(@subcats);
    my @articles = (@articles, @new_articles);

    # Remove duplicates from article list.
    my @articles_no_duplicates = removeDuplicates(@articles);

    # Search talk pages for each article to find "class=X" classification
    my %classes = getArticleClasses(@articles_no_duplicates);

    # Prepare text to print to results file
    my $text_to_print = "<p><font face=\"arial\">Pages in category <a href=\"http://en.wikipedia.org/wiki/Category:$category\">$category</a>";
    $text_to_print .= " retrieved by <a href=\"http://en.wikipedia.org/wiki/User:PockBot\">PockBot</a>.<br><br>";
    $text_to_print .= "<b>PockBot is currently In Development and the below does not represent final output.</b></font></p>";
    $text_to_print .= "<table border=\"1\" cellpadding=\"2\"><tr>";
    $text_to_print .= "<th style=\"background:#ffdead;\" width=\"350\">Article</th>";
    $text_to_print .= "<th style=\"background:#ffdead;\" width=\"100\">Class / Status</th></tr>";
    foreach my $article_title (@articles_no_duplicates) {
        $text_to_print .= "<tr>";
        $text_to_print .= "<td><a href=\"http://en.wikipedia.org/wiki/$article_title\" title=\"$article_title\">";
        $text_to_print .= "$article_title</a></td><td>$classes{'$article_title'}</td>";
        $text_to_print .= "</tr>";
    }
    $text_to_print .= "</table>";

    # write results to results.htm
    &writeResultsToFile($text_to_print,$category);
    
    return (@articles_no_duplicates);
}

#______________________________________________________________________________#

sub fetchContents {
    my $category = $_[0];
    $category =~ s/\s/_/g;
    my $category_url = "http://en.wikipedia.org/wiki/Category:" . $category;
    &logAction("Fetching page contents for category $category");
    my $browser = LWP::UserAgent->new();
    $browser->timeout(60);
    my $request = HTTP::Request->new(GET => $category_url);
    my $response = $browser->request($request);
    if ($response->is_error()) {printf "%s\n", $response->status_line;}
    my $contents = $response->content();
    sleep(1); # don't hammer the server! One read request every 1 second.
    return($category,$contents);
}

#______________________________________________________________________________#

sub fetchTalkContents {
    my $category = $_[0];
    $category =~ s/\s/_/g;
    my $category_url = "http://en.wikipedia.org/wiki/Talk:" . $category;
    &logAction("Fetching talk page contents for category $category");
    my $browser = LWP::UserAgent->new();
    $browser->timeout(60);
    my $request = HTTP::Request->new(GET => $category_url);
    my $response = $browser->request($request);
    if ($response->is_error()) {printf "%s\n", $response->status_line;}
    my $contents = $response->content();
    sleep(1); # don't hammer the server! One read request every 1 second.
    return($category,$contents);
}

#______________________________________________________________________________#

sub finishedRunning {
    my $category = $_[0];
    my $category_url = "http://en.wikipedia.org/wiki/Talk:" . $category;
    &logAction("Finished processing category $category");
    print "<p><font face=\"arial\">PockBot has finished running. The results should be visible on the talk page at <a href=\"$category_url\">Category_talk:$category</a></font></p>";
    &printFooter;    
}

#______________________________________________________________________________#

sub resetLogAndResultsFiles {

    my $log_file = '/files/home2/thepaty/cgi-bin/log.htm';
    my $results_file = '/files/home2/thepaty/cgi-bin/results.htm';
    
    &logAction("Resetting log and results files to empty");

    open(LOGFILE,">$log_file") || &error("Cannot open log file.");
        flock(LOGFILE, 2)  || &error("Cannot lock log file.");       
            print LOGFILE "";
        flock(LOGFILE, 8);        
    close (LOGFILE);
    
    open(RESULTSFILE,">$results_file") || &error("Cannot open log file.");
        flock(RESULTSFILE, 2)  || &error("Cannot lock log file.");       
            print RESULTSFILE "";
        flock(RESULTSFILE, 8);        
    close (RESULTSFILE);

}

#______________________________________________________________________________#

sub getMainCategory{
    my $category = "BLANK";
    $category = param('category_specified');
    
    &resetLogAndResultsFiles();
    &logAction("Bot started for category $category");
    
    if ($category eq "BLANK") {
        &error("Error receiving category name");
    }
    else {
        my ($category, $contents) = fetchContents($category);
        &processContents($category,$contents);
        &finishedRunning($category);
    }
}

#______________________________________________________________________________#

sub enableBot {

    my $status_file = "/files/home2/thepaty/cgi-bin/status.txt";
    
    &logAction("Bot enable request made");
    
    open(STATUSFILE,"$status_file") || &error("Cannot open bot status file.");
        flock(STATUSFILE, 2)  || &error("Cannot lock bot status file.");              
        my $current_status = <STATUSFILE>;
        flock(STATUSFILE, 8);        
    close (STATUSFILE);
    
    chomp($current_status);
    my $bot_enabled = $current_status;

    if ($bot_enabled == 1) {
        &logAction("Bot already enabled, no action necesary");
        &printOnlineHeader;
        print "<p><font face=\"arial\">PockBot is already enabled. <a href=\"http://ccgi.thepaty.plus.com/cgi-bin/PockBot.cgi?action=disableBot\">Disable PockBot</a></font></p>";
        &printFooter;
        exit;
    }
    elsif ($bot_enabled == 0) {
    
        &logAction("Bot currently disabled. Enabling bot.");

        open(STATUSFILE,">$status_file") || &error("Cannot open bot status file.");
            flock(STATUSFILE, 2)  || &error("Cannot lock bot status file.");            
                print STATUSFILE "1";
            flock(STATUSFILE, 8);        
        close (STATUSFILE);

        &printOnlineHeader;
        print "<p><font face=\"arial\">PockBot is now enabled. <a href=\"http://ccgi.thepaty.plus.com/cgi-bin/PockBot.cgi?action=disableBot\">Disable Pockbot</a></font></p>";
        &printFooter;
        exit;
    }
    else {
        &error("Unrecognised bot status. Something has gone wrong.");
    }
}

#______________________________________________________________________________#

sub disableBot {

    my $status_file = "/files/home2/thepaty/cgi-bin/status.txt";
    
    &logAction("Bot disable request made");

    open(STATUSFILE,"$status_file") || &error("Cannot open bot status file.");
        flock(STATUSFILE, 2)  || &error("Cannot lock bot status file.");              
        my $current_status = <STATUSFILE>;
        flock(STATUSFILE, 8);        
    close (STATUSFILE);
    
    chomp($current_status);
    my $bot_enabled = $current_status;

    if ($bot_enabled == 0) {
    
        &logAction("Bot is already disabled. No action necessary");
    
        &printOfflineHeader;
        print "<p><font face=\"arial\">PockBot is already disabled. <a href=\"http://ccgi.thepaty.plus.com/cgi-bin/PockBot.cgi?action=enableBot\">Enable PockBot</a></font></p>";
        &printFooter;
        exit;
    }
    elsif ($bot_enabled == 1) {
    
        &logAction("Bot is currently enabled. Disabling bot.");

        open(STATUSFILE,">$status_file") || &error("Cannot open bot status file.");
            flock(STATUSFILE, 2)  || &error("Cannot lock bot status file.");            
                print STATUSFILE "0";
            flock(STATUSFILE, 8);        
        close (STATUSFILE);

        &printOfflineHeader;
        print "<p><font face=\"arial\">PockBot is now disabled. <a href=\"http://ccgi.thepaty.plus.com/cgi-bin/PockBot.cgi?action=enableBot\">Enable Pockbot</a></font></p>";
        &printFooter;
        exit;
    }
    else {
        &error("Unrecognised bot status. Something has gone wrong.");
    }
}

#______________________________________________________________________________#

sub checkIfBotOnline {

    my $status_file = '/files/home2/thepaty/cgi-bin/status.txt';
    
    &logAction("Checking if bot is online");

    open(STATUSFILE,"$status_file") || &error("Cannot open bot status file.");
        flock(STATUSFILE, 2)  || &error("Cannot lock bot status file.");              
        my $current_status = <STATUSFILE>;
        flock(STATUSFILE, 8);        
    close (STATUSFILE);
    
    chomp($current_status);
    my $bot_enabled = $current_status;

    if ($bot_enabled == 0) {
    
        &logAction("Bot is disabled, cannot perform action");
    
        &printOfflineHeader;
        print "<p><font face=\"arial\">PockBot is currently disabled. If you are certain it has nt been disabled for a reason, you can <a href=\"http://ccgi.thepaty.plus.com/cgi-bin/PockBot.cgi?action=enableBot\">Enable PockBot</a></font></p>";
        &printFooter;
        exit;
    }
    elsif ($bot_enabled == 1) {
    
        &logAction("Bot is enabled, we are good to go.");
    
        #no action necessary
    }
    else {
        &error("Unrecognised bot status. Something has gone wrong.");
    }
}

#______________________________________________________________________________#

sub printOnlineHeader {
    print "Content-type: text/html\n\n";
    print "<html><head><title>PockBot</title></head><body>";
    print "<p><font face=\"arial\" size=\"1\"><a href=\"http://en.wikipedia.org/wiki/Main_Page\">Wikipedia</a> > <a href=\"http://en.wikipedia.org/wiki/User:PockBot\">Pockbot's User Page</a></font></p>";
    print "<p><font face=\"arial\"><b>Pockbot is currently ONLINE / ENABLED</b> (<a href=\"http://ccgi.thepaty.plus.com/cgi-bin/PockBot.cgi?action=disableBot\">Disable PockBot</a>)</font><p>";
    print "<img src=\"http://www.thepaty.plus.com/pockbot.gif\">";
}

sub printOfflineHeader {
    print "Content-type: text/html\n\n";
    print "<html><head><title>PockBot</title></head><body>";
    print "<p><font face=\"arial\" size=\"1\"><a href=\"http://en.wikipedia.org/wiki/Main_Page\">Wikipedia</a> > <a href=\"http://en.wikipedia.org/wiki/User:PockBot\">Pockbot's User Page</a></font></p>";
    print "<p><font face=\"arial\"><b>Pockbot is currently OFFLINE / DISABLED</b> (<a href=\"http://ccgi.thepaty.plus.com/cgi-bin/PockBot.cgi?action=enableBot\">Enable PockBot</a>)</font><p>";
    print "<img src=\"http://www.thepaty.plus.com/pockbot.gif\">";
}

#______________________________________________________________________________#

sub printFooter {
    print "</body></html>";
}

#______________________________________________________________________________#

sub error {
    &checkIfBotOnline;
    &logAction("ERROR: $_[0]");
    &printOnlineHeader;
    print "<p><font face=\"arial\">ERROR: $_[0]</font></p>";
    &printFooter;
    exit;
}