<?php
/*****************************************************************************

    phpCF - Copyright 2005 Anders K. Madsen <madsen@lillesvin.net>

    This file is part of phpCF.

    phpCF is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    phpCF is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with phpCF; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

*****************************************************************************/

/**
* NAMING CONVENTIONS:
*   Content check functions are prefixed with "c_"
*   Email check functions are prefixed with "ec_"
*   Failing to obey these simple naming conventions, will result
*   in the check never being run.
*/

require_once 'class.CFBase.php';

class CF extends CFBase
{
    // Scanning methods
    function c_num_urls($text)
    {
        global $NUM_URLS;
    
        // The hardcore regex for url matching:
        preg_match_all("/((f|ht)tps?\:\/\/)([a-z0-9@:%_.~#\-\?&-]+)((\=|[a-z0-9]|\?|&|%|\/|\.|-|:|æ|ø|å)+){0,}/msi", $text, $matches);
        // And the light, but efficient:
        // preg_match_all("/(ht|f)tp(s?)\:\/\//msi", $text, $matches);
        $urls = count($matches[0]);

        $this->log[] = "num_urls: $urls URL(s) found";
        return ($NUM_URLS * $urls);
    }
    function c_poker_ref($text)
    {
        global $POKER_REF;
        
        preg_match_all("/\b(poker|texas(\s|-)hold(\s?)em|blackjack|gambling)\b/msi", $text, $matches);
        $ref = count($matches[0]);

        $this->log[] = "poker_ref: $ref poker reference(s) found.";
        return ($POKER_REF * $ref);
    }
    function c_html_percentage($text)
    {
        global $HTML_PERCENTAGE;

        $percent = round(((strlen($text)-strlen(strip_tags($text))) / strlen($text)) * 100);

        $this->log[] = "html_percentage: $percent";
        return ($HTML_PERCENTAGE * $percent);
    }

    // Email checking methods:
    function ec_alpha_num($email)
    {
        global $ALPHA_NUM;

        if (preg_match("/^[a-z\_\-]+[0-9]+@/i", $email)) {
            $this->log[] = "alpha_num: Email username ending in numeric characters.";
            return $ALPHA_NUM;
        } else {
            return 0;
        }
    }
}
?>