philter/philter/include/rule.inc.php

   1 <?php
   2 /********************************************************************************
   3 * include/rule.inc.php : The class representing One rule
   4 * --------------------
   5 *
   6 * This file is part of the philter distribution
   7 * Copyright: See COPYING files that comes with this distribution
   8 ********************************************************************************/
   9
  10 function rule_cmp($r1, $r2) {
  11     return ($r1->rank - $r2->rank);
  12 }
  13
  14 function to_js_str($s) {
  15     if((string)((int)($s))==$s)
  16         return((int)($s));
  17     $s = addslashes(stripslashes($s));
  18     $s = str_replace("\r\n", '\n', $s);
  19     $s = str_replace("\n", '\n', $s);
  20     return  "'$s'";
  21 }
  22
  23 /** this class represents One rule of filtering
  24  */
  25 class Rule {
  26     /** rank of the rule */
  27     var $rank;
  28     /** all the matches that the Rule use */
  29     var $matches;
  30     /** all the actions that the Rule use */
  31     var $actions;
  32     /** name of the rule */
  33     var $name;
  34     /** true if we must stop if the rule matches */
  35     var $block;
  36     /** true if all matches must match, false if only one is enough */
  37     var $all;
  38
  39     function Rule($_rank,$_flags,$_name) {
  40         $this->matches = array();
  41         $this->actions = array();
  42         $this->rank = $_rank;
  43         $this->name = $_name;
  44         $this->all = (stristr($_flags,'all')!==false);
  45         $this->block = (stristr($_flags,'block')!==false);
  46     }
  47
  48     function sql_get_actions($_uid, $_rid) {
  49         global $philter;
  50         /*
  51         $left_joins = "";
  52         foreach($philter->config['action_plugins'] as $plug)
  53             $left_joins .= $plug->sql_get();
  54         */
  55         $bd = bd()."actions";
  56         $sql = mysql_query("SELECT * FROM $bd WHERE $bd.uid='$_uid' AND $bd.rid='$_rid'");
  57
  58         while($t = mysql_fetch_assoc($sql))
  59             $this->actions[] = $philter->config['action_plugins'][$t['pid']]->sql_to_data($t);
  60     }
  61
  62     function sql_get_matches($_uid, $_rid) {
  63         global $philter;
  64
  65         /*
  66         $left_joins = "";
  67         foreach($philter->config['match_plugins'] as $plug)
  68             $left_joins .= $plug->sql_get();
  69         */
  70
  71         $bd = bd()."matches";
  72         $sql = mysql_query("SELECT * FROM $bd WHERE $bd.uid='$_uid' AND $bd.rid='$_rid'");
  73
  74         if($_rid)
  75             while($t = mysql_fetch_assoc($sql))
  76                 $this->matches[] = $philter->config['match_plugins'][$t['pid']]->sql_to_data($t);
  77         else
  78             while($t = mysql_fetch_assoc($sql))
  79                 $this->matches[] = $philter->config['global_plugins'][$t['pid']]->sql_to_data($t);
  80     }
  81
  82     function move_to($_new_rank, $_uid, $_rid) {
  83         if($this->rank == $_new_rank)
  84             return;
  85         $this->rank = $_new_rank;
  86         mysql_query("UPDATE ".bd()."rules SET rank='$_new_rank' WHERE uid='$_uid' AND rid='$_rid'");
  87     }
  88
  89     function to_string() {
  90         global $philter;
  91
  92         $res = $this->block  ? ":0\n" : ":0 c\n";
  93
  94         if($this->all) {
  95             foreach($this->matches as $match)
  96                 $res .= $philter->config['match_plugins'][$match[0]]->to_string($match);
  97         } else {
  98             $i = 0; $res = '';
  99             foreach($this->matches as $match) {
 100                 $res .= (empty($i) ? ":0 f\n" : ":0 fE\n");
 101                 $res .= $philter->config['match_plugins'][$match[0]]->to_string($match);
 102                 $res .= "| formail -I'X-Philter-Or: yes'\n";
 103                 $i++;
 104             }
 105
 106             $res.= ":0 f\n"
 107                 .  "* ^X-Philter-Or: yes\n"
 108                 .  "| formail -I'X-Philter-Or'\n"
 109                 .  ($this->block ? ":0 A\n" : ":0 Ac\n");
 110         }
 111
 112         $res.= "{\n";
 113         foreach($this->actions as $action)
 114             $res .= $philter->config['action_plugins'][$action[0]]->to_string($action);
 115         $res.= "    :0\n"
 116             .  "    /dev/null\n"
 117             .  "}\n\n";
 118
 119         return $res;
 120     }
 121
 122     function sql_clean($_uid, $_rid) {
 123         global $philter;
 124
 125         mysql_query("DELETE FROM ".bd()."rules WHERE uid='$_uid' AND rid='$_rid'");
 126         mysql_query("DELETE FROM ".bd()."actions WHERE uid='$_uid' AND rid='$_rid'");
 127         mysql_query("DELETE FROM ".bd()."matches WHERE uid='$_uid' AND rid='$_rid'");
 128         /*
 129         foreach($philter->config['action_plugins'] as $plug)
 130             $plug->sql_clean($_uid, $_rid);
 131         foreach($philter->config['match_plugins'] as $plug)
 132             $plug->sql_clean($_uid, $_rid);
 133         */
 134     }
 135
 136     function sql_store($_uid, $_rid) {
 137         global $philter;
 138
 139         $flags = Array();
 140         if($this->all)      $flags[] = 'all';
 141         if($this->block)    $flags[] = 'block';
 142         $flags = implode(',',$flags);
 143
 144         $this->sql_clean($_uid,$_rid);
 145
 146         mysql_query("INSERT INTO ".bd()."rules SET uid='$_uid',rid='$_rid',rank='{$this->rank}',flags='$flags',name='{$this->name}'");
 147
 148         if($_rid) {
 149             foreach($this->matches as $match)
 150                 $philter->config['match_plugins'][$match[0]]->sql_store($_uid, $_rid, $match);
 151
 152             foreach($this->actions as $action)
 153                 $philter->config['action_plugins'][$action[0]]->sql_store($_uid, $_rid, $action);
 154         } else
 155             foreach($this->matches as $match)
 156                 $philter->config['global_plugins'][$match[0]]->sql_store($_uid, $_rid, $match);
 157     }
 158
 159     function to_js() {
 160         $matches = array();
 161         foreach($this->matches as $data) {
 162             ksort($data);
 163             $data = array_map('to_js_str', $data);
 164             $matches[] = '[' . implode(',', $data) . ']';
 165         }
 166         $matches = '['.implode(',',$matches).']';
 167
 168         $actions = array();
 169         foreach($this->actions as $data) {
 170             ksort($data);
 171             $data = array_map('to_js_str', $data);
 172             $actions[] = '[' . implode(',', $data) . ']';
 173         }
 174         $actions = '['.implode(',',$actions).']';
 175
 176         return "{ all: ".($this->all ? "1" : "0")
 177             .", block: ".($this->block ? "1" : "0")
 178             .", name: '{$this->name}', matches: ".$matches
 179             .", actions: ".$actions." }";
 180     }
 181 }
 182
 183 /********************************************************************************
 184 * $Id$
 185 * vim: set expandtab shiftwidth=4 tabstop=4 softtabstop=4 textwidth=100:
 186 ********************************************************************************/
 187 ?>