<?php
/********************************************************************************
* include/rule.inc.php : The class representing One rule
* --------------------
*
* This file is part of the philter distribution
* Copyright: See COPYING files that comes with this distribution
********************************************************************************/

function rule_cmp($r1, $r2) {
    return ($r1->rank - $r2->rank);
}

function to_js_str($s) {
    if((string)((int)($s))==$s)
        return((int)($s));
    $s = addslashes(stripslashes($s));
    $s = str_replace("\r\n", '\n', $s);
    $s = str_replace("\n", '\n', $s);
    return  "'$s'";
}

/** this class represents One rule of filtering
 */
class Rule {
    /** rank of the rule */
    var $rank;
    /** all the matches that the Rule use */
    var $matches;
    /** all the actions that the Rule use */
    var $actions;
    /** name of the rule */
    var $name;
    /** true if we must stop if the rule matches */
    var $block;
    /** true if all matches must match, false if only one is enough */
    var $all;

    function Rule($_rank,$_flags,$_name) {
        $this->matches = array();
        $this->actions = array();
        $this->rank = $_rank;
        $this->name = $_name;
        $this->all = (stristr($_flags,'all')!==false);
        $this->block = (stristr($_flags,'block')!==false);
    }

    function sql_get_actions($_uid, $_rid) {
        global $philter;

        $left_joins = "";
        foreach($philter->config['action_plugins'] as $plug)
            $left_joins .= $plug->sql_get();
       
        $bd = bd()."actions";
        $sql = mysql_query("SELECT * FROM $bd WHERE $bd.uid='$_uid' AND $bd.rid='$_rid' ".$left_joins);
        
        while($t = mysql_fetch_assoc($sql))
            $this->actions[] = $philter->config['action_plugins'][$t['pid']]->sql_to_data($t);
    }

    function sql_get_matches($_uid, $_rid) {
        global $philter;
        
        $left_joins = "";
        foreach($philter->config['match_plugins'] as $plug)
            $left_joins .= $plug->sql_get();
        
        $bd = bd()."matches";
        $sql = mysql_query("SELECT * FROM $bd WHERE $bd.uid='$_uid' AND $bd.rid='$_rid' ".$left_joins);
       
        if($_rid)
            while($t = mysql_fetch_assoc($sql))
                $this->matches[] = $philter->config['match_plugins'][$t['pid']]->sql_to_data($t);
        else
            while($t = mysql_fetch_assoc($sql))
                $this->matches[] = $philter->config['global_plugins'][$t['pid']]->sql_to_data($t);
    }

    function move_to($_new_rank, $_uid, $_rid) {
        if($this->rank == $_new_rank)
            return;
        $this->rank = $_new_rank;
        mysql_query("UPDATE ".bd()."rules SET rank='$_new_rank' WHERE uid='$_uid' AND rid='$_rid'");
    }

    function to_string() {
        return "";
    }

    function sql_clean($_uid, $_rid) {
        global $philter;

        mysql_query("DELETE FROM ".bd()."rules WHERE uid='$_uid' AND rid='$_rid'");
        mysql_query("DELETE FROM ".bd()."actions WHERE uid='$_uid' AND rid='$_rid'");
        mysql_query("DELETE FROM ".bd()."matches WHERE uid='$_uid' AND rid='$_rid'");
        foreach($philter->config['action_plugins'] as $plug)
            $plug->sql_clean($_uid, $_rid);
        foreach($philter->config['match_plugins'] as $plug)
            $plug->sql_clean($_uid, $_rid);
    }
    
    function sql_store($_uid, $_rid) {
        global $philter;
        
        $flags = Array();
        if($this->all)      $flags[] = 'all';
        if($this->block)    $flags[] = 'block';
        $flags = implode(',',$flags);

        $this->sql_clean($_uid,$_rid);

        mysql_query("INSERT INTO ".bd()."rules SET uid='$_uid',rid='$_rid',rank='{$this->rank}',flags='$flags',name='{$this->name}'");

        if($_rid) {
            foreach($this->matches as $match)
                $philter->config['match_plugins'][$match[0]]->sql_store($_uid, $_rid, $match);

            foreach($this->actions as $action)
                $philter->config['action_plugins'][$action[0]]->sql_store($_uid, $_rid, $action);
        } else
            foreach($this->matches as $match)
                $philter->config['global_plugins'][$match[0]]->sql_store($_uid, $_rid, $match);
    }

    function to_js() {
        $matches = array();
        ksort($this->matches);
        foreach($this->matches as $data) {
            $data = array_map('to_js_str', $data);
            $matches[] = '[' . implode(',', $data) . ']';
        }
        $matches = '['.implode(',',$matches).']';

        $actions = array();
        foreach($this->actions as $data) {
            $data = array_map('to_js_str', $data);
            $actions[] = '[' . implode(',', $data) . ']';
        }
        $actions = '['.implode(',',$actions).']';

        return "{ all: ".($this->all ? "1" : "0")
            .", block: ".($this->block ? "1" : "0")
            .", name: '{$this->name}', matches: ".$matches
            .", actions: ".$actions." }";
    }
}

/********************************************************************************
* $Id$
* vim: set expandtab shiftwidth=4 tabstop=4 softtabstop=4 textwidth=100:
********************************************************************************/
?>