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############################################################## 
## MOD Title: Visual Confirmation for Guests 
## MOD Author: Kanuck < aaron@kanuck.net > (Aaron Adams) http://kanuck.net/ 
## MOD Description: Adds visual confirmation for guest posts, eliminating spam. 
## MOD Version: 1.0.1 
## 
## Installation Level: Easy 
## Installation Time: 3 Minutes 
## Files To Edit: posting.php, templates/subSilver/posting_body.tpl 
## Included Files: n/a 
############################################################## 
## For Security Purposes, Please Check: http://www.phpbb.com/mods/ for the 
## latest version of this MOD. Downloading this MOD from other sites could cause malicious code 
## to enter into your phpBB Forum. As such, phpBB will not offer support for MOD's not offered 
## in our MOD-Database, located at: http://www.phpbb.com/mods/ 
############################################################## 
## Author Notes: None 
## 
############################################################## 
## MOD History: 
## 
##   2005-02-18 - Version 1.0.1 
##      - It works now. No more parse errors. 
## 
############################################################## 
## Before Adding This MOD To Your Forum, You Should Back Up All Files Related To This MOD 
############################################################## 

# 
#-----[ OPEN ]------------------------------------------ 
# 

posting.php 

# 
#-----[ FIND ]------------------------------------------ 
# 

/*************************************************************************** 
 * 
 *   This program is free software; you can redistribute it and/or modify 
 *   it under the terms of the GNU General Public License as published by 
 *   the Free Software Foundation; either version 2 of the License, or 
 *   (at your option) any later version. 
 * 
 ***************************************************************************/ 
  
# 
#-----[ AFTER, ADD ]------------------------------------------ 
# 

/* 

   png visual confirmation system : (c) phpBB Group, 2003 : All Rights Reserved 

*/ 

# 
#-----[ FIND ]------------------------------------------ 
# 

      case 'editpost': 
      case 'newtopic': 
      case 'reply': 
       
# 
#-----[ AFTER, ADD ]------------------------------------------ 
# 

         if ( $board_config['enable_confirm'] && !$userdata['session_logged_in'] ) 
         { 
            if ( empty($HTTP_POST_VARS['confirm_id']) || empty($HTTP_POST_VARS['confirm_code']) ) 
            { 
               $error = TRUE; 
               $error_msg .= ( ( isset($error_msg) ) ? '<br />' : '' ) . $lang['Confirm_code_wrong']; 
            } 
            else 
            { 
               $confirm_id = htmlspecialchars($HTTP_POST_VARS['confirm_id']); 
               if (!preg_match('/^[A-Za-z0-9]+$/', $confirm_id)) 
               { 
                  $confirm_id = ''; 
               } 
                
               $sql = 'SELECT code 
                  FROM ' . CONFIRM_TABLE . " 
                  WHERE confirm_id = '$confirm_id' 
                     AND session_id = '" . $userdata['session_id'] . "'"; 
               if (!($result = $db->sql_query($sql))) 
               { 
                  message_die(GENERAL_ERROR, 'Could not obtain confirmation code', __LINE__, __FILE__, $sql); 
               } 
       
               if ($row = $db->sql_fetchrow($result)) 
               { 
                  if ($row['code'] != $HTTP_POST_VARS['confirm_code']) 
                  { 
                     $error = TRUE; 
                     $error_msg .= ( ( isset($error_msg) ) ? '<br />' : '' ) . $lang['Confirm_code_wrong']; 
                  } 
                  else 
                  { 
                     $sql = 'DELETE FROM ' . CONFIRM_TABLE . " 
                        WHERE confirm_id = '$confirm_id' 
                           AND session_id = '" . $userdata['session_id'] . "'"; 
                     if (!$db->sql_query($sql)) 
                     { 
                        message_die(GENERAL_ERROR, 'Could not delete confirmation code', __LINE__, __FILE__, $sql); 
                     } 
                  } 
               } 
               else 
               {       
                  $error = TRUE; 
                  $error_msg .= ( ( isset($error_msg) ) ? '<br />' : '' ) . $lang['Confirm_code_wrong']; 
               } 
               $db->sql_freeresult($result); 
            } 
         } 

# 
#-----[ FIND ]------------------------------------------ 
# 

// Generate smilies listing for page output 
generate_smilies('inline', PAGE_POSTING); 

# 
#-----[ BEFORE, ADD ]------------------------------------------ 
# 

// 
// Visual confirmation for guests 
// 
$confirm_image = ''; 
if( !$userdata['session_logged_in'] && (!empty($board_config['enable_confirm'])) ) 
{ 
   $sql = 'SELECT session_id 
      FROM ' . SESSIONS_TABLE; 
   if (!($result = $db->sql_query($sql))) 
   { 
      message_die(GENERAL_ERROR, 'Could not select session data', '', __LINE__, __FILE__, $sql); 
   } 
    
   if ($row = $db->sql_fetchrow($result)) 
   { 
      $confirm_sql = ''; 
      do 
      { 
         $confirm_sql .= (($confirm_sql != '') ? ', ' : '') . "'" . $row['session_id'] . "'"; 
      } 
      while ($row = $db->sql_fetchrow($result)); 
    
      $sql = 'DELETE FROM ' .  CONFIRM_TABLE . " 
         WHERE session_id NOT IN ($confirm_sql)"; 
      if (!$db->sql_query($sql)) 
      { 
         message_die(GENERAL_ERROR, 'Could not delete stale confirm data', '', __LINE__, __FILE__, $sql); 
      } 
   } 
   $db->sql_freeresult($result); 
    
   $confirm_chars = array('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',  'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',  'U', 'V', 'W', 'X', 'Y', 'Z', '1', '2', '3', '4', '5', '6', '7', '8', '9'); 
    
   list($usec, $sec) = explode(' ', microtime()); 
   mt_srand($sec * $usec); 
    
   $max_chars = count($confirm_chars) - 1; 
   $code = ''; 
   for ($i = 0; $i < 6; $i++) 
   { 
      $code .= $confirm_chars[mt_rand(0, $max_chars)]; 
   } 
    
   $confirm_id = md5(uniqid($user_ip)); 
    
   $sql = 'INSERT INTO ' . CONFIRM_TABLE . " (confirm_id, session_id, code) 
      VALUES ('$confirm_id', '". $userdata['session_id'] . "', '$code')"; 
   if (!$db->sql_query($sql)) 
   { 
      message_die(GENERAL_ERROR, 'Could not insert new confirm code information', '', __LINE__, __FILE__, $sql); 
   } 
    
   unset($code); 
    
   $confirm_image = (@extension_loaded('zlib')) ? '<img src="' . append_sid("profile.$phpEx?mode=confirm&id=$confirm_id") . '" alt="" title="" />' : '<img src="' . append_sid("profile.$phpEx?mode=confirm&id=$confirm_id&c=1") . '" alt="" title="" /><img src="' . append_sid("profile.$phpEx?mode=confirm&id=$confirm_id&c=2") . '" alt="" title="" /><img src="' . append_sid("profile.$phpEx?mode=confirm&id=$confirm_id&c=3") . '" alt="" title="" /><img src="' . append_sid("profile.$phpEx?mode=confirm&id=$confirm_id&c=4") . '" alt="" title="" /><img src="' . append_sid("profile.$phpEx?mode=confirm&id=$confirm_id&c=5") . '" alt="" title="" /><img src="' . append_sid("profile.$phpEx?mode=confirm&id=$confirm_id&c=6") . '" alt="" title="" />'; 
   $hidden_form_fields .= '<input type="hidden" name="confirm_id" value="' . $confirm_id . '" />'; 
    
   $template->assign_block_vars('switch_confirm', array()); 
} 

# 
#-----[ FIND ]------------------------------------------ 
# 

   'SMILIES_STATUS' => $smilies_status, 

# 
#-----[ AFTER, ADD ]------------------------------------------ 
# 

   'CONFIRM_IMG' => $confirm_image, 
    
# 
#-----[ FIND ]------------------------------------------ 
# 

   'L_DELETE_POST' => $lang['Delete_post'], 

# 
#-----[ AFTER, ADD ]------------------------------------------ 
# 

   'L_CONFIRM_CODE_IMPAIRED'   => sprintf($lang['Confirm_code_impaired'], '<a href="mailto:' . $board_config['board_email'] . '">', '</a>'), 
   'L_CONFIRM_CODE' => $lang['Confirm_code'], 
   'L_CONFIRM_CODE_EXPLAIN' => $lang['Confirm_code_explain'], 

# 
#-----[ OPEN ]------------------------------------------ 
# 

templates/subSilver/posting_body.tpl 

# 
#-----[ FIND ]------------------------------------------ 
# 

   {POLLBOX} 

# 
#-----[ AFTER, ADD ]------------------------------------------ 
# 

   <!-- Visual Confirmation --> 
   <!-- BEGIN switch_confirm --> 
   <tr> 
      <td class="row1" colspan="2" align="center"><span class="gensmall">{L_CONFIRM_CODE_IMPAIRED}</span><br /><br />{CONFIRM_IMG}<br /><br /></td> 
   </tr> 
   <tr> 
     <td class="row1"><span class="gen">{L_CONFIRM_CODE}: * </span><br /><span class="gensmall">{L_CONFIRM_CODE_EXPLAIN}</span></td> 
     <td class="row2"><input type="text" class="post" style="width: 200px" name="confirm_code" size="6" maxlength="6" value="" /></td> 
   </tr> 
   <!-- END switch_confirm --> 

# 
#-----[ SAVE/CLOSE ALL FILES ]------------------------------------------ 
# 
# EoM