NP_RejectASCIIComment/tags/NP_RejectASCIIComment.php

   1 <?php
   2
   3 /**
   4   * REJECT 'ONLY ASCII' COMMENT AND TRACKBACK PLUGIN FOR NucleusCMS
   5   * PHP versions 4 and 5
   6   *
   7   * This program is free software; you can redistribute it and/or
   8   * modify it under the terms of the GNU General Public License
   9   * as published by the Free Software Foundation; either version 2
  10   * of the License, or (at your option) any later version.
  11   * (see nucleus/documentation/index.html#license for more info)
  12   *
  13   *
  14   * @author     shizuki
  15   * @copyright  2006-2007 shizuki
  16   * @license    http://www.gnu.org/licenses/gpl.txt
  17   *             GNU GENERAL PUBLIC LICENSE Version 2, June 1991
  18   * @version    0.3
  19   * @link       http://shizuki.kinezumi.net
  20   *
  21   * 0.3  Release version
  22   * 0.2  supports SpamCheck API 2
  23   *      supports NP_TrackBack
  24   * 0.1  initial
  25   *
  26   **/
  27
  28 class NP_RejectASCIIComment extends NucleusPlugin
  29 {
  30
  31         // name of plugin
  32         function getName()
  33         {
  34                 $retData = 'Reject ASCII Comment and TrackBack';
  35                 return $retData;
  36         }
  37
  38         // author of plugin
  39         function getAuthor()
  40         {
  41                 $retData = 'shizuki';
  42                 return $retData;
  43         }
  44
  45         // an URL to the plugin website
  46         function getURL()
  47         {
  48                 $retData = 'http://shizuki.kinezumi.net';
  49                 return $retData;
  50         }
  51
  52         // version of the plugin
  53         function getVersion()
  54         {
  55                 $retData = '0.3';
  56                 return $retData;
  57         }
  58
  59         // a description to be shown on the installed plugins listing
  60         function getDescription()
  61         {
  62                 $retData = _REJECT_ASCII_DESCRIPTION;
  63                 if (_CHARSET != 'UTF-8') {
  64                         mb_convert_encoding($retData, _CHARSET, 'UTF-8');
  65                 }
  66                 return $retData;
  67         }
  68
  69         function getEventList()
  70         {
  71                 return array(
  72                                          'SpamCheck',
  73                                          'ValidateForm'
  74                                         );
  75         }
  76
  77         function install()
  78         {
  79                 $optionData = _REJECT_ASCII_HOOK;
  80                 if (_CHARSET != 'UTF-8') {
  81                         mb_convert_encoding($optionData, _CHARSET, 'UTF-8');
  82                 }
  83                 $this->createBlogOption('hook',  $optionData, 'yesno', 'no');
  84                 $optionData = _REJECT_ASCII_DELTB;
  85                 if (_CHARSET != 'UTF-8') {
  86                         mb_convert_encoding($optionData, _CHARSET, 'UTF-8');
  87                 }
  88                 $this->createBlogOption('deltb', $optionData, 'yesno', 'no');
  89         }
  90
  91         function supportsFeature ($what)
  92         {
  93                 switch ($what)
  94                 {
  95                         case 'SqlTablePrefix':
  96                                 return 1;
  97                         default:
  98                                 return 0;
  99                 }
 100         }
 101
 102         function init()
 103         {
 104                 global $admin;
 105                 $langFile = $this->getDirectory() . 'japanese.php';
 106                 if (file_exists($langFile)) {
 107                         include_once($langFile);
 108                 }
 109         }
 110
 111         function event_SpamCheck(&$data)
 112         {
 113                 global $DIR_PLUGINS, $member;
 114
 115                 $spamCheck = $data['spamcheck'];
 116                 if ($spamCheck['result'] == TRUE) {
 117                         return FALSE;
 118                 }
 119
 120                 if ($member->isLoggedIn()) {
 121                         return FALSE;
 122                 }
 123
 124                 $type     = (!empty($spamCheck['type'])) ? $spamCheck['type'] : 'post';
 125                 $encoding = $this->_detect_encoding($excerpt);
 126                 switch ($type) {
 127                         case 'comment':
 128                                 $checkData = $spamCheck['body'];
 129                                 $item_id   = intval($spamCheck['id']);
 130                                 break;
 131                         case 'trackback':
 132                                 $checkData = $spamCheck['excerpt'] . $spamCheck['title'] . $spamCheck['blogname'];
 133                                 $item_id   = intval($spamCheck['id']);
 134                                 break;
 135                         default:
 136                 }
 137                 $bid       = intval(getBlogIDFromItemID($item_id));
 138                 $bname     = getBlogNameFromID($bid);
 139                 $inque     = 'SELECT ititle as result FROM %s WHERE inumber = %d';
 140                 $inque     = sprintf($inque, sql_table('item'), $item_id);
 141                 $iname     = quickQuery($inque);
 142                 $checkData = str_replace($bname, '', $checkData);
 143                 $checkData = str_replace($iname, '', $checkData);
 144                 $checkData = ereg_replace("\r|\n","",$checkData);
 145                 $checkData = mb_convert_encoding($checkData, 'UTF-8', $encoding);
 146                 if ($checkData && !preg_match('/[\x80-\xff]/', $checkData)) {
 147                         $checkType = array(
 148                                                            'comment'   => _REJECT_ASCII_COMMENT,
 149                                                            'trackback' => _REJECT_ASCII_TRACKBACK,
 150                                                           );
 151                         $info      = _REJECT_ASCII_INFOHEAD . $item_id . $checkType[$type];
 152                         if (_CHARSET != 'UTF-8') {
 153                                 mb_convert_encoding($info, _CHARSET, 'UTF-8');
 154                         }
 155 //                      ACTIONLOG :: add(INFO, 'RejectASCII: ' . $info . shorten(strip_tags($checkData), 50, '...') . ')');
 156                         $data['spamcheck']['result'] = TRUE;
 157                         if ($type == 'trackback' && $this->getBlogOption($bid, 'deltb') == 'yes') {
 158                                 header("Location: " . createItemLink($item_id));
 159                                 exit();
 160                         }
 161                         return TRUE;
 162                 } else {
 163                         return FALSE;
 164                 }
 165         }
 166
 167         function event_ValidateForm(&$data) {
 168                 global $DIR_PLUGINS, $member;
 169                 if (getNucleusVersion() >= '330' || $data['type'] != 'comment') {
 170                         return TRUE;
 171                 }
 172                 $item_id = intval($data['comment']['itemid']);
 173                 $blog_id = intval(getBlogIDFromItemID($item_id));
 174
 175                 if ($this->getBlogOption($blog_id, 'hook') == 'no') {
 176                         return TRUE;
 177                 }
 178
 179                 if ($member->isLoggedIn()) {
 180                         return TRUE;
 181                 }
 182
 183                 $spamcheck = array(
 184                                                    'type' => 'comment',
 185                                                    'id'   => $item_id,
 186                                                    'user' => $data['comment']['user'],
 187                                                    'body' => $data['comment']['body'],
 188                                                   );
 189
 190                 $param     = array(
 191                                                    'spamcheck' => &$spamcheck
 192                                                   );
 193                 $this->event_SpamCheck($param);
 194
 195                 if (isset($spamcheck['result']) && $spamcheck['result'] == TRUE) {
 196                         $data['error'] = -1;
 197                         header("Location: " . createItemLink($item_id));
 198                         exit();
 199                 }
 200
 201                 return true;
 202         }
 203
 204         function _detect_encoding($string)
 205         {
 206                 if (preg_match("/;\s*charset=([^\n]+)/is", serverVar("CONTENT_TYPE"), $regs)) {
 207                         $encoding =  strtoupper(trim($regs[1]));
 208                 } else {
 209                         $encoding = '';
 210                 }
 211                 $mbstrInput = strtolower(ini_get("mbstring.http_input"));
 212                 if (!empty($encoding) && (mb_http_input('P') == '' || $mbstrInput == 'pass')) {
 213                         return $encoding;
 214                 } else {
 215                         if (_CHARSET == 'UTF-8') {
 216                                 $encChars = 'UTF-8,EUC-JP,SJIS,ISO-8859-1,ASCII,JIS';
 217                         } else {
 218                                 $encChars = 'EUC-JP,UTF-8,SJIS,ISO-8859-1,ASCII,JIS';
 219                         }
 220                         $encoding = mb_detect_encoding($string, $encChars);
 221                 }
 222                 return ($encoding) ? $encoding : 'ISO-8859-1';
 223         }
 224
 225 }
 226