<?php
//////////////////////////////////////////////////////////////////////////////////////////////////////
// L'encrier 1.2.0                                                                                  //
// Copyright (C) 2002-2004 Sylvain Eliade <sylvain@journalintime.com>                               //
// This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike License.   //
// To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/1.0/          //
// or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.    //
// Francais (brouillon): http://creativecommons.org/projects/international/fr/translated-license    //
//////////////////////////////////////////////////////////////////////////////////////////////////////

// Filtres de texte
// v0.1.0

class filtres
{
    var $err = array(
        "stop"  =>  "oui",
        "log"   =>  "oui",
        "debug" =>  "oui");

    var $types = array(
        "replace"   =>  "Remplacement");

    // Pour la détection du langage SMS, pourcentage de mots SMS autorisés dans un texte
    // avant la signification du texte en "langage SMS"
    var $sms_percent = 10;

    // Mots du langage SMS
    // (inspiré de trouvailles sur skyblogs ;o)
    var $sms_words = array("bjr","slt","kif","pcq","pkoi","pk","dc","ac","copin","c","kop1","bo","ché",
        "ya","foto","fotos","lol","mdr","ct","sui","ke","koi","kan","mm","jvé","jai","komen","vré","ki",
        "2m1","asv","bsr","ayé","cad","càd","keske","stp","qd","rdv","tjs","tjr","bcp","meuf","ct","msg",
        "pb","kkun","kk1","tt","fo","kune","ele","el","kil","pa","assé","pouré","ben","vs","ny","avai",
        "dechire","grave","po","koa","cho","otres","otre","ptit","pti","tro","jparle","voi","posible","ds",
        "moa","fè","bô","arf","acht","tit","ptin","j'ador","jador","hihi","poskeuh","zentil","jle","jui",
        "jsui","pis","vala","tits","ouej","keum","loul","tlm","alor","gt","tou","pe","ko","kon","kun");

    var $sms = array("found_words"=>array(),"found_percentage"=>0);

    // Gestion des erreurs
    function _err($err,$debug="") {
        // Si le debug est activé
        if($this->err[debug] == "oui" && !empty($debug)) $err.= "\n// DEBUG //\n".$debug;

        // Si on log les erreurs
        if($this->err[log] == "oui") $this->erreurs[] = $err;

        // Si on s'arrête sur les erreurs
        if($this->err[stop] == "oui") {
            echo "<pre>".htmlentities(stripslashes($err))."</pre>";
            exit;
        }
        $this->erreur = $err;
        return FALSE;
    }

    // Supprime les caractères bizarres laissés par Word et autres traitements de textes
    function kill_word($texte)
    {
        $unicode = array(
            "&#8211;" => "-", "&#8212;" => "-", "&#8216;" => "'", "&#8218;"=>",", "&#402;"=>"f",
            "&#8222;" => '"', "&#132;" => '"', "&#132;"=>'...', "&#8230;"=>"...", "&#710;"=>"^",
            "&#136;" => '^', "&#136;"=>"'", "&#139;"=>"'", "&#338;"=>"OE", "&#140;"=>"OE",
            "&#145;"=>"'", "&#8216;"=>"'", "&#146;"=>"'", "&#8217;"=>"'", "&#147;"=>'"', "&#8220;"=>'"',
            "&#148;"=>'"', "&#8221;"=>'"', "&#148;"=>"-", "&#8221;"=>"-", "&#150;"=>"-", "&#8211;"=>"-",
            "&#151;"=>"--", "&#8212;"=>"--", "&nbsp;"=>" ", "&lt;"=>"<", "&gt;"=>">");
        $texte = strtr($texte,$unicode);
        return trim($texte);
    }

    // Détection de langage SMS
    // ------------------------
    // Si pourcentage de langage SMS autorisé dépassé dans le texte, renvoie TRUE, sinon FALSE.
    // Le pourcentage de langage trouvé est stocké dans $this->sms['found_percentage']
    // Les mots SMS trouvés sont stockés dans $this->sms['found_words']
    // Un mot SMS du dictionnaire = 3 points
    // Un mot contenant des chiffres = 2 points
    // Un mot de 1 caractère = 1 point
    function is_sms($texte)
    {
        $this->sms = array('found_words' => array(), 'found_percentage' => 0);
        $texte = ereg_replace("[._:/,;?!'\n\r\t-]"," ",$texte);
        $texte = ereg_replace("[ ]{2,}"," ",$texte);
        $texte = strip_tags($texte);
        $texte = trim($texte);
        $texte = explode(" ",$texte);
        $sms_count = 0;
        foreach($texte as $mot)
        {
            if(!eregi("^[a-z0-9]+$",$mot))
                continue;
            if(in_array(strtolower($mot),$this->sms_words))
            {
                $sms_count += 3;
                $this->sms['found_words'][] = $mot;
            }
            elseif(eregi("[0-9]+",$mot))
                $sms_count += 2;
            elseif(strlen($mot) == 1)
                $sms_count++;
        }

        $sms_count = ($sms_count / 3);
        $this->sms['found_percentage'] = round(($sms_count / count($texte)) * 100,1);

        if($this->sms['found_percentage'] >= $this->sms_percent)
            return TRUE;
        return FALSE;
    }

    function add($journal,$type,$auto=FALSE,$opts="")
    {
        if(!array_key_exists($type,$this->types)) return FALSE;

        if(is_array($opts)) $opts = addslashes(serialize($opts));
        if($auto == TRUE) $auto = "oui";
        else $auto = "non";

        $requete = 'INSERT INTO filtres SET journal="'.$journal.'", type="'.$type.'", auto="'.$auto.'", opts="'.$opts.'"';
        $res = mysql_query($requete);
        $id = mysql_insert_id();
        mysql_free_result($res);

        return $id;
    }

    function liste($journal)
    {
        $requete = 'SELECT * FROM filtres WHERE journal="'.$journal.'"';
        $res = mysql_query($requete);

        $out = array();
        while($rec = mysql_fetch_assoc($res))
            $out[] = $rec;

        mysql_free_result($res);
        return $out;
    }

}
?>