[Sommaire] [Imprimer]

   1  <?php
   2  
   3  ////////////////////////////////////////////////////////////////////////////////
   4  //                                                                            //
   5  //   Copyright (C) 2006  Phorum Development Team                              //
   6  //   http://www.phorum.org                                                    //
   7  //                                                                            //
   8  //   This program is free software. You can redistribute it and/or modify     //
   9  //   it under the terms of either the current Phorum License (viewable at     //
  10  //   phorum.org) or the Phorum License that was distributed with this file    //
  11  //                                                                            //
  12  //   This program is distributed in the hope that it will be useful,          //
  13  //   but WITHOUT ANY WARRANTY, without even the implied warranty of           //
  14  //   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.                     //
  15  //                                                                            //
  16  //   You should have received a copy of the Phorum License                    //
  17  //   along with this program.                                                 //
  18  ////////////////////////////////////////////////////////////////////////////////
  19  
  20  if ( !defined( "PHORUM" ) ) return;
  21  
  22  /**
  23   * Formats forum messages.
  24   *
  25   * @param data - An array containing a messages to be formatted.
  26   * @return data - The formatted messages.
  27   */
  28  function phorum_format_messages ($data)
  29  {
  30      $PHORUM = $GLOBALS["PHORUM"];
  31  
  32      // Prepare the bad-words replacement code.
  33      $bad_word_check= false;
  34      $banlists = phorum_db_get_banlists();
  35      if (isset($banlists[PHORUM_BAD_WORDS]) && is_array($banlists[PHORUM_BAD_WORDS])) {
  36          $replace_vals  = array();
  37          $replace_words = array();
  38          foreach ($banlists[PHORUM_BAD_WORDS] as $item) {
  39              $replace_words[] = "/\b".preg_quote($item['string'])."(ing|ed|s|er|es)*\b/i";
  40              $replace_vals[]  = PHORUM_BADWORD_REPLACE;
  41              $bad_word_check  = true;
  42          }
  43      }
  44  
  45      // A special <br> tag to keep track of breaks that are added by phorum.
  46      $phorum_br = '<phorum break>';
  47  
  48      // Apply Phorum's formatting rules to all messages.
  49      foreach( $data as $key => $message )
  50      {
  51          // Work on the message body ========================
  52  
  53          if (isset($message["body"]))
  54          {
  55              $body = $message["body"];
  56  
  57              // Convert legacy <> urls into bare urls.
  58              $body = preg_replace("/<((http|https|ftp):\/\/[a-z0-9;\/\?:@=\&\$\-_\.\+!*'\(\),~%]+?)>/i", "$1", $body);
  59  
  60              // Escape special HTML characters. The function htmlspecialchars()
  61              // does too much, prior to PHP version 4.0.3.
  62              $body = str_replace(array("&","<",">"), array("&amp;","&lt;","&gt;"), $body);
  63  
  64              // Replace newlines with $phorum_br temporarily.
  65              // This way the mods know what Phorum did vs the user.
  66              $body = str_replace("\n", "$phorum_br\n", $body);
  67  
  68              // Run bad word replacement code.
  69              if($bad_word_check) {
  70                 $body = preg_replace($replace_words, $replace_vals, $body);
  71              }
  72  
  73              $data[$key]["body"] = $body;
  74          }
  75  
  76          // Work on the other fields ========================
  77  
  78          // Run bad word replacement code on subject and author.
  79          if($bad_word_check) {
  80              if (isset($message["subject"]))
  81                  $message["subject"] = preg_replace($replace_words, $replace_vals, $message["subject"]);
  82              if (isset($message["author"]))
  83                  $message["author"] = preg_replace($replace_words, $replace_vals, $message["author"]);
  84          }
  85  
  86          // Escape special HTML characters in fields.
  87          if (isset($message["email"]))
  88              $data[$key]["email"] = str_replace(array("<",">"), array("&lt;","&gt;"), $message["email"]);
  89          if (isset($message["subject"]))
  90              $data[$key]["subject"] = str_replace(array("&","<",">"), array("&amp;","&lt;","&gt;"), $message["subject"]);
  91  
  92          // Some special things we have to do for the escaped author name.
  93          // We never should have put HTML in the core. Now we have to
  94          // do this hack to get the escaped author name in the linked_author.
  95          if (isset($message["author"])) {
  96              $data[$key]["author"]  = str_replace(array("<",">"), array("&lt;","&gt;"), $message["author"]);
  97              $safe_author = str_replace(array("&","<",">"), array("&amp;","&lt;","&gt;"), $message["author"]);
  98              if ($safe_author != $data[$key]["author"] && isset($data[$key]["linked_author"])) {
  99                  $data[$key]["linked_author"] = str_replace($data[$key]["author"], $safe_author, $data[$key]["linked_author"]);
 100                  $data[$key]["author"] = $safe_author;
 101              }
 102          }
 103      }
 104  
 105      // A hook for module writers to apply custom message formatting.
 106      $data = phorum_hook("format", $data);
 107  
 108      // Clean up after the mods are done.
 109      foreach( $data as $key => $message ) {
 110  
 111          // Clean up line breaks inside pre and xmp tags. These tags
 112          // take care of showing newlines as breaks themselves.
 113          if (isset($message["body"])) {
 114              foreach (array("pre","goep","xmp") as $tagname) {
 115                  if (preg_match_all( "/(<$tagname.*?>).+?(<\/$tagname>)/si", $message["body"], $matches)) {
 116                      foreach ($matches[0] as $match) {
 117                          $stripped = str_replace ($phorum_br, "", $match);
 118                          $message["body"] = str_replace ($match, $stripped, $message["body"]);
 119                      }
 120                  }
 121              }
 122              // Remove line break after quote and code tags. These tags have
 123              // their own line break. Without this, there would be to much
 124              // white lines.
 125              $message["body"] = preg_replace("/\s*(<\/*(xmp|blockquote|pre).*?>)\s*\Q$phorum_br\E/", "$1", $message["body"]);
 126  
 127              // Normalize the Phorum line breaks that are left.
 128              $data[$key]["body"] = str_replace($phorum_br, "<br />", $message["body"]);
 129          }
 130      }
 131  
 132      return $data;
 133  }
 134  
 135  /**
 136   * Formats an epoch timestamp to a date/time for displaying on screen.
 137   *
 138   * @param picture - The time formatting to use, in strftime() format
 139   * @param ts - The epoch timestamp to format
 140   * @return datetime - The formatted date/time string
 141   */
 142  function phorum_date( $picture, $ts )
 143  {
 144      $PHORUM = $GLOBALS["PHORUM"];
 145  
 146      // Setting locale.
 147      if (!isset($PHORUM['locale']))
 148          $PHORUM['locale']="EN";
 149      setlocale(LC_TIME, $PHORUM['locale']);
 150  
 151      // Format the date.
 152      if ($PHORUM["user_time_zone"] && isset($PHORUM["user"]["tz_offset"]) && $PHORUM["user"]["tz_offset"]!=-99) {
 153          $ts += $PHORUM["user"]["tz_offset"] * 3600;
 154          return gmstrftime( $picture, $ts );
 155      } else {
 156          $ts += $PHORUM["tz_offset"] * 3600;
 157          return strftime( $picture, $ts );
 158      }
 159  }
 160  
 161  /**
 162   * Strips HTML <tags> and BBcode [tags] from the body.
 163   *
 164   * @param body - The block of body text to strip
 165   * @return stripped - The stripped body
 166   */
 167  function phorum_strip_body( $body )
 168  {
 169      // Strip HTML <tags>
 170      $stripped = preg_replace("|</*[a-z][^>]*>|i", "", $body);
 171      // Strip BB Code [tags]
 172      $stripped = preg_replace("|\[/*[a-z][^\]]*\]|i", "", $stripped);
 173  
 174      // do badwords check
 175      // Prepare the bad-words replacement code.
 176      $bad_word_check= false;
 177      $banlists = phorum_db_get_banlists();
 178      if (isset($banlists[PHORUM_BAD_WORDS]) && is_array($banlists[PHORUM_BAD_WORDS])) {
 179          $replace_vals  = array();
 180          $replace_words = array();
 181          foreach ($banlists[PHORUM_BAD_WORDS] as $item) {
 182              $replace_words[] = "/\b".preg_quote($item['string'])."(ing|ed|s|er|es)*\b/i";
 183              $replace_vals[]  = PHORUM_BADWORD_REPLACE;
 184              $bad_word_check  = true;
 185          }
 186      }
 187  
 188      if ($bad_word_check) {
 189          $stripped = preg_replace($replace_words, $replace_vals, $stripped);
 190      }
 191      return $stripped;
 192  }
 193  
 194  /**
 195   * Formats a file size in bytes to a human readable format. Human
 196   * readable formats are MB (MegaByte), KB (KiloByte) and byte.
 197   *
 198   * @param bytes - The number of bytes
 199   * @param formatted - The formatted size
 200   */
 201  function phorum_filesize( $bytes )
 202  {
 203      if ($bytes >= 1024*1024) {
 204          return round($bytes/1024/1024, 2) . "MB";
 205      } elseif ($bytes >= 1024) {
 206          return round($bytes/1024, 1) . "KB";
 207      } else {
 208          return $bytes . ($bytes == 1 ? " byte" : " bytes");
 209      }
 210  }
 211  
 212  ?>