Verzeichnisstruktur phpBB-3.3.16


Veröffentlicht
27.04.2026

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file.php

Zuletzt modifiziert: 01.05.2026, 11:25 - Dateigröße: 9.80 KiB


 001  <?php
 002  /**
 003  *
 004  * This file is part of the phpBB Forum Software package.
 005  *
 006  * @copyright (c) phpBB Limited <https://www.phpbb.com>
 007  * @license GNU General Public License, version 2 (GPL-2.0)
 008  *
 009  * For full copyright and license information, please see
 010  * the docs/CREDITS.txt file.
 011  *
 012  */
 013   
 014  /**
 015  * @ignore
 016  */
 017  define('IN_PHPBB', true);
 018  $phpbb_root_path = (defined('PHPBB_ROOT_PATH')) ? PHPBB_ROOT_PATH : './../';
 019  $phpEx = substr(strrchr(__FILE__, '.'), 1);
 020   
 021  // Thank you sun.
 022  if (isset($_SERVER['CONTENT_TYPE']))
 023  {
 024      if ($_SERVER['CONTENT_TYPE'] === 'application/x-java-archive')
 025      {
 026          exit;
 027      }
 028  }
 029  else if (isset($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], 'Java') !== false)
 030  {
 031      exit;
 032  }
 033   
 034  if (isset($_GET['avatar']))
 035  {
 036      require($phpbb_root_path . 'includes/startup.' . $phpEx);
 037   
 038      require($phpbb_root_path . 'phpbb/class_loader.' . $phpEx);
 039      $phpbb_class_loader = new \phpbb\class_loader('phpbb\\', "{$phpbb_root_path}phpbb/", $phpEx);
 040      $phpbb_class_loader->register();
 041   
 042      $phpbb_config_php_file = new \phpbb\config_php_file($phpbb_root_path, $phpEx);
 043      extract($phpbb_config_php_file->get_all());
 044   
 045      if (!defined('PHPBB_ENVIRONMENT'))
 046      {
 047          @define('PHPBB_ENVIRONMENT', 'production');
 048      }
 049   
 050      if (!defined('PHPBB_INSTALLED') || empty($dbms) || empty($acm_type))
 051      {
 052          exit;
 053      }
 054   
 055      require($phpbb_root_path . 'includes/constants.' . $phpEx);
 056      require($phpbb_root_path . 'includes/functions.' . $phpEx);
 057      require($phpbb_root_path . 'includes/functions_download' . '.' . $phpEx);
 058      require($phpbb_root_path . 'includes/utf/utf_tools.' . $phpEx);
 059   
 060      // Setup class loader first
 061      $phpbb_class_loader_ext = new \phpbb\class_loader('\\', "{$phpbb_root_path}ext/", $phpEx);
 062      $phpbb_class_loader_ext->register();
 063   
 064      // Set up container
 065      $phpbb_container_builder = new \phpbb\di\container_builder($phpbb_root_path, $phpEx);
 066      $phpbb_container = $phpbb_container_builder->with_config($phpbb_config_php_file)->get_container();
 067   
 068      $phpbb_class_loader->set_cache($phpbb_container->get('cache.driver'));
 069      $phpbb_class_loader_ext->set_cache($phpbb_container->get('cache.driver'));
 070   
 071      // set up caching
 072      /* @var $cache \phpbb\cache\service */
 073      $cache = $phpbb_container->get('cache');
 074   
 075      /* @var $phpbb_dispatcher \phpbb\event\dispatcher */
 076      $phpbb_dispatcher = $phpbb_container->get('dispatcher');
 077   
 078      /* @var $request \phpbb\request\request_interface */
 079      $request    = $phpbb_container->get('request');
 080   
 081      /* @var $db \phpbb\db\driver\driver_interface */
 082      $db            = $phpbb_container->get('dbal.conn');
 083   
 084      /* @var $phpbb_log \phpbb\log\log_interface */
 085      $phpbb_log    = $phpbb_container->get('log');
 086   
 087      unset($dbpasswd);
 088   
 089      /* @var $config \phpbb\config\config */
 090      $config = $phpbb_container->get('config');
 091   
 092      // load extensions
 093      /* @var $phpbb_extension_manager \phpbb\extension\manager */
 094      $phpbb_extension_manager = $phpbb_container->get('ext.manager');
 095   
 096      // worst-case default
 097      $browser = strtolower($request->header('User-Agent', 'msie 6.0'));
 098   
 099      /* @var $phpbb_avatar_manager \phpbb\avatar\manager */
 100      $phpbb_avatar_manager = $phpbb_container->get('avatar.manager');
 101   
 102      $filename = $request->variable('avatar', '');
 103      $avatar_group = false;
 104      $exit = false;
 105   
 106      if (isset($filename[0]) && $filename[0] === 'g')
 107      {
 108          $avatar_group = true;
 109          $filename = substr($filename, 1);
 110      }
 111   
 112      // '==' is not a bug - . as the first char is as bad as no dot at all
 113      if (strpos($filename, '.') == false)
 114      {
 115          send_status_line(403, 'Forbidden');
 116          $exit = true;
 117      }
 118   
 119      if (!$exit)
 120      {
 121          $ext        = substr(strrchr($filename, '.'), 1);
 122          $stamp        = (int) substr(stristr($filename, '_'), 1);
 123          $filename    = (int) $filename;
 124          $exit = set_modified_headers($stamp, $browser);
 125      }
 126      if (!$exit && !in_array($ext, array('png', 'gif', 'jpg', 'jpeg')))
 127      {
 128          // no way such an avatar could exist. They are not following the rules, stop the show.
 129          send_status_line(403, 'Forbidden');
 130          $exit = true;
 131      }
 132   
 133   
 134      if (!$exit)
 135      {
 136          if (!$filename)
 137          {
 138              // no way such an avatar could exist. They are not following the rules, stop the show.
 139              send_status_line(403, 'Forbidden');
 140          }
 141          else
 142          {
 143              send_avatar_to_browser(($avatar_group ? 'g' : '') . $filename . '.' . $ext, $browser);
 144          }
 145      }
 146      file_gc();
 147  }
 148   
 149  // implicit else: we are not in avatar mode
 150  include($phpbb_root_path . 'common.' . $phpEx);
 151  require($phpbb_root_path . 'includes/functions_download' . '.' . $phpEx);
 152   
 153  $attach_id = $request->variable('id', 0);
 154  $mode = $request->variable('mode', '');
 155  $thumbnail = $request->variable('t', false);
 156   
 157  // Start session management, do not update session page.
 158  $user->session_begin(false);
 159  $auth->acl($user->data);
 160  $user->setup('viewtopic');
 161   
 162  $phpbb_content_visibility = $phpbb_container->get('content.visibility');
 163   
 164  if (!$config['allow_attachments'] && !$config['allow_pm_attach'])
 165  {
 166      send_status_line(404, 'Not Found');
 167      trigger_error('ATTACHMENT_FUNCTIONALITY_DISABLED');
 168  }
 169   
 170  if (!$attach_id)
 171  {
 172      send_status_line(404, 'Not Found');
 173      trigger_error('NO_ATTACHMENT_SELECTED');
 174  }
 175   
 176  $sql = 'SELECT attach_id, post_msg_id, topic_id, in_message, poster_id, is_orphan, physical_filename, real_filename, extension, mimetype, filesize, filetime
 177      FROM ' . ATTACHMENTS_TABLE . "
 178      WHERE attach_id = $attach_id";
 179  $result = $db->sql_query($sql);
 180  $attachment = $db->sql_fetchrow($result);
 181  $db->sql_freeresult($result);
 182   
 183  if (!$attachment)
 184  {
 185      send_status_line(404, 'Not Found');
 186      trigger_error('ERROR_NO_ATTACHMENT');
 187  }
 188  else if (!download_allowed())
 189  {
 190      send_status_line(403, 'Forbidden');
 191      trigger_error($user->lang['LINKAGE_FORBIDDEN']);
 192  }
 193  else
 194  {
 195      $attachment['physical_filename'] = utf8_basename($attachment['physical_filename']);
 196   
 197      if (!$attachment['in_message'] && !$config['allow_attachments'] || $attachment['in_message'] && !$config['allow_pm_attach'])
 198      {
 199          send_status_line(404, 'Not Found');
 200          trigger_error('ATTACHMENT_FUNCTIONALITY_DISABLED');
 201      }
 202   
 203      if ($attachment['is_orphan'])
 204      {
 205          // We allow admins having attachment permissions to see orphan attachments...
 206          $own_attachment = ($auth->acl_get('a_attach') || $attachment['poster_id'] == $user->data['user_id']) ? true : false;
 207   
 208          if (!$own_attachment || ($attachment['in_message'] && !$auth->acl_get('u_pm_download')) || (!$attachment['in_message'] && !$auth->acl_get('u_download')))
 209          {
 210              send_status_line(404, 'Not Found');
 211              trigger_error('ERROR_NO_ATTACHMENT');
 212          }
 213   
 214          // Obtain all extensions...
 215          $extensions = $cache->obtain_attach_extensions(true);
 216      }
 217      else
 218      {
 219          if (!$attachment['in_message'])
 220          {
 221              phpbb_download_handle_forum_auth($db, $auth, $attachment['topic_id']);
 222   
 223              $sql = 'SELECT forum_id, poster_id, post_visibility
 224                  FROM ' . POSTS_TABLE . '
 225                  WHERE post_id = ' . (int) $attachment['post_msg_id'];
 226              $result = $db->sql_query($sql);
 227              $post_row = $db->sql_fetchrow($result);
 228              $db->sql_freeresult($result);
 229   
 230              if (!$post_row || !$phpbb_content_visibility->is_visible('post', $post_row['forum_id'], $post_row))
 231              {
 232                  // Attachment of a soft deleted post and the user is not allowed to see the post
 233                  send_status_line(404, 'Not Found');
 234                  trigger_error('ERROR_NO_ATTACHMENT');
 235              }
 236          }
 237          else
 238          {
 239              // Attachment is in a private message.
 240              $post_row = array('forum_id' => false);
 241              phpbb_download_handle_pm_auth($db, $auth, $user->data['user_id'], $attachment['post_msg_id']);
 242          }
 243   
 244          $extensions = array();
 245          if (!extension_allowed($post_row['forum_id'], $attachment['extension'], $extensions))
 246          {
 247              send_status_line(403, 'Forbidden');
 248              trigger_error(sprintf($user->lang['EXTENSION_DISABLED_AFTER_POSTING'], $attachment['extension']));
 249          }
 250      }
 251   
 252      $download_mode = (int) $extensions[$attachment['extension']]['download_mode'];
 253      $display_cat = $extensions[$attachment['extension']]['display_cat'];
 254   
 255      if ($display_cat == ATTACHMENT_CATEGORY_IMAGE || $display_cat == ATTACHMENT_CATEGORY_THUMB)
 256      {
 257          // Do not display if either display inline is disabled or user is not allowed to view images
 258          if (!$config['img_display_inlined'] || !$user->optionget('viewimg'))
 259          {
 260              $display_cat = ATTACHMENT_CATEGORY_NONE;
 261          }
 262      }
 263   
 264      /**
 265      * Event to modify data before sending file to browser
 266      *
 267      * @event core.download_file_send_to_browser_before
 268      * @var    int        attach_id            The attachment ID
 269      * @var    array    attachment            Array with attachment data
 270      * @var    int        display_cat            Attachment category
 271      * @var    int        download_mode        File extension specific download mode
 272      * @var    array    extensions            Array with file extensions data
 273      * @var    string    mode                Download mode
 274      * @var    bool    thumbnail            Flag indicating if the file is a thumbnail
 275      * @since 3.1.6-RC1
 276      * @changed 3.1.7-RC1    Fixing wrong name of a variable (replacing "extension" by "extensions")
 277      */
 278      $vars = array(
 279          'attach_id',
 280          'attachment',
 281          'display_cat',
 282          'download_mode',
 283          'extensions',
 284          'mode',
 285          'thumbnail',
 286      );
 287      extract($phpbb_dispatcher->trigger_event('core.download_file_send_to_browser_before', compact($vars)));
 288   
 289      if ($thumbnail)
 290      {
 291          $attachment['physical_filename'] = 'thumb_' . $attachment['physical_filename'];
 292      }
 293      else if ($display_cat == ATTACHMENT_CATEGORY_NONE && !$attachment['is_orphan'] && !phpbb_http_byte_range($attachment['filesize']))
 294      {
 295          // Update download count
 296          phpbb_increment_downloads($db, $attachment['attach_id']);
 297      }
 298   
 299      if ($display_cat == ATTACHMENT_CATEGORY_IMAGE && $mode === 'view' && (strpos($attachment['mimetype'], 'image') === 0) && (strpos(strtolower($user->browser), 'msie') !== false) && !phpbb_is_greater_ie_version($user->browser, 7))
 300      {
 301          wrap_img_in_html(append_sid($phpbb_root_path . 'download/file.' . $phpEx, 'id=' . $attachment['attach_id']), $attachment['real_filename']);
 302          file_gc();
 303      }
 304      else
 305      {
 306          // Determine the 'presenting'-method
 307          if ($download_mode == PHYSICAL_LINK)
 308          {
 309              // This presenting method should no longer be used
 310              if (!@is_dir($phpbb_root_path . $config['upload_path']))
 311              {
 312                  send_status_line(500, 'Internal Server Error');
 313                  trigger_error($user->lang['PHYSICAL_DOWNLOAD_NOT_POSSIBLE']);
 314              }
 315   
 316              redirect($phpbb_root_path . $config['upload_path'] . '/' . $attachment['physical_filename']);
 317              file_gc();
 318          }
 319          else
 320          {
 321              send_file_to_browser($attachment, $config['upload_path'], $display_cat);
 322              file_gc();
 323          }
 324      }
 325  }
 326   

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Verzeichnisstruktur phpBB-3.3.16

Zuletzt modifiziert: 01.05.2026, 11:25 - Dateigröße: 9.80 KiB

file.php


 001  <?php
 002  /**
 003  *
 004  * This file is part of the phpBB Forum Software package.
 005  *
 006  * @copyright (c) phpBB Limited <https://www.phpbb.com>
 007  * @license GNU General Public License, version 2 (GPL-2.0)
 008  *
 009  * For full copyright and license information, please see
 010  * the docs/CREDITS.txt file.
 011  *
 012  */
 013   
 014  /**
 015  * @ignore
 016  */
 017  define('IN_PHPBB', true);
 018  $phpbb_root_path = (defined('PHPBB_ROOT_PATH')) ? PHPBB_ROOT_PATH : './../';
 019  $phpEx = substr(strrchr(__FILE__, '.'), 1);
 020   
 021  // Thank you sun.
 022  if (isset($_SERVER['CONTENT_TYPE']))
 023  {
 024      if ($_SERVER['CONTENT_TYPE'] === 'application/x-java-archive')
 025      {
 026          exit;
 027      }
 028  }
 029  else if (isset($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], 'Java') !== false)
 030  {
 031      exit;
 032  }
 033   
 034  if (isset($_GET['avatar']))
 035  {
 036      require($phpbb_root_path . 'includes/startup.' . $phpEx);
 037   
 038      require($phpbb_root_path . 'phpbb/class_loader.' . $phpEx);
 039      $phpbb_class_loader = new \phpbb\class_loader('phpbb\\', "{$phpbb_root_path}phpbb/", $phpEx);
 040      $phpbb_class_loader->register();
 041   
 042      $phpbb_config_php_file = new \phpbb\config_php_file($phpbb_root_path, $phpEx);
 043      extract($phpbb_config_php_file->get_all());
 044   
 045      if (!defined('PHPBB_ENVIRONMENT'))
 046      {
 047          @define('PHPBB_ENVIRONMENT', 'production');
 048      }
 049   
 050      if (!defined('PHPBB_INSTALLED') || empty($dbms) || empty($acm_type))
 051      {
 052          exit;
 053      }
 054   
 055      require($phpbb_root_path . 'includes/constants.' . $phpEx);
 056      require($phpbb_root_path . 'includes/functions.' . $phpEx);
 057      require($phpbb_root_path . 'includes/functions_download' . '.' . $phpEx);
 058      require($phpbb_root_path . 'includes/utf/utf_tools.' . $phpEx);
 059   
 060      // Setup class loader first
 061      $phpbb_class_loader_ext = new \phpbb\class_loader('\\', "{$phpbb_root_path}ext/", $phpEx);
 062      $phpbb_class_loader_ext->register();
 063   
 064      // Set up container
 065      $phpbb_container_builder = new \phpbb\di\container_builder($phpbb_root_path, $phpEx);
 066      $phpbb_container = $phpbb_container_builder->with_config($phpbb_config_php_file)->get_container();
 067   
 068      $phpbb_class_loader->set_cache($phpbb_container->get('cache.driver'));
 069      $phpbb_class_loader_ext->set_cache($phpbb_container->get('cache.driver'));
 070   
 071      // set up caching
 072      /* @var $cache \phpbb\cache\service */
 073      $cache = $phpbb_container->get('cache');
 074   
 075      /* @var $phpbb_dispatcher \phpbb\event\dispatcher */
 076      $phpbb_dispatcher = $phpbb_container->get('dispatcher');
 077   
 078      /* @var $request \phpbb\request\request_interface */
 079      $request    = $phpbb_container->get('request');
 080   
 081      /* @var $db \phpbb\db\driver\driver_interface */
 082      $db            = $phpbb_container->get('dbal.conn');
 083   
 084      /* @var $phpbb_log \phpbb\log\log_interface */
 085      $phpbb_log    = $phpbb_container->get('log');
 086   
 087      unset($dbpasswd);
 088   
 089      /* @var $config \phpbb\config\config */
 090      $config = $phpbb_container->get('config');
 091   
 092      // load extensions
 093      /* @var $phpbb_extension_manager \phpbb\extension\manager */
 094      $phpbb_extension_manager = $phpbb_container->get('ext.manager');
 095   
 096      // worst-case default
 097      $browser = strtolower($request->header('User-Agent', 'msie 6.0'));
 098   
 099      /* @var $phpbb_avatar_manager \phpbb\avatar\manager */
 100      $phpbb_avatar_manager = $phpbb_container->get('avatar.manager');
 101   
 102      $filename = $request->variable('avatar', '');
 103      $avatar_group = false;
 104      $exit = false;
 105   
 106      if (isset($filename[0]) && $filename[0] === 'g')
 107      {
 108          $avatar_group = true;
 109          $filename = substr($filename, 1);
 110      }
 111   
 112      // '==' is not a bug - . as the first char is as bad as no dot at all
 113      if (strpos($filename, '.') == false)
 114      {
 115          send_status_line(403, 'Forbidden');
 116          $exit = true;
 117      }
 118   
 119      if (!$exit)
 120      {
 121          $ext        = substr(strrchr($filename, '.'), 1);
 122          $stamp        = (int) substr(stristr($filename, '_'), 1);
 123          $filename    = (int) $filename;
 124          $exit = set_modified_headers($stamp, $browser);
 125      }
 126      if (!$exit && !in_array($ext, array('png', 'gif', 'jpg', 'jpeg')))
 127      {
 128          // no way such an avatar could exist. They are not following the rules, stop the show.
 129          send_status_line(403, 'Forbidden');
 130          $exit = true;
 131      }
 132   
 133   
 134      if (!$exit)
 135      {
 136          if (!$filename)
 137          {
 138              // no way such an avatar could exist. They are not following the rules, stop the show.
 139              send_status_line(403, 'Forbidden');
 140          }
 141          else
 142          {
 143              send_avatar_to_browser(($avatar_group ? 'g' : '') . $filename . '.' . $ext, $browser);
 144          }
 145      }
 146      file_gc();
 147  }
 148   
 149  // implicit else: we are not in avatar mode
 150  include($phpbb_root_path . 'common.' . $phpEx);
 151  require($phpbb_root_path . 'includes/functions_download' . '.' . $phpEx);
 152   
 153  $attach_id = $request->variable('id', 0);
 154  $mode = $request->variable('mode', '');
 155  $thumbnail = $request->variable('t', false);
 156   
 157  // Start session management, do not update session page.
 158  $user->session_begin(false);
 159  $auth->acl($user->data);
 160  $user->setup('viewtopic');
 161   
 162  $phpbb_content_visibility = $phpbb_container->get('content.visibility');
 163   
 164  if (!$config['allow_attachments'] && !$config['allow_pm_attach'])
 165  {
 166      send_status_line(404, 'Not Found');
 167      trigger_error('ATTACHMENT_FUNCTIONALITY_DISABLED');
 168  }
 169   
 170  if (!$attach_id)
 171  {
 172      send_status_line(404, 'Not Found');
 173      trigger_error('NO_ATTACHMENT_SELECTED');
 174  }
 175   
 176  $sql = 'SELECT attach_id, post_msg_id, topic_id, in_message, poster_id, is_orphan, physical_filename, real_filename, extension, mimetype, filesize, filetime
 177      FROM ' . ATTACHMENTS_TABLE . "
 178      WHERE attach_id = $attach_id";
 179  $result = $db->sql_query($sql);
 180  $attachment = $db->sql_fetchrow($result);
 181  $db->sql_freeresult($result);
 182   
 183  if (!$attachment)
 184  {
 185      send_status_line(404, 'Not Found');
 186      trigger_error('ERROR_NO_ATTACHMENT');
 187  }
 188  else if (!download_allowed())
 189  {
 190      send_status_line(403, 'Forbidden');
 191      trigger_error($user->lang['LINKAGE_FORBIDDEN']);
 192  }
 193  else
 194  {
 195      $attachment['physical_filename'] = utf8_basename($attachment['physical_filename']);
 196   
 197      if (!$attachment['in_message'] && !$config['allow_attachments'] || $attachment['in_message'] && !$config['allow_pm_attach'])
 198      {
 199          send_status_line(404, 'Not Found');
 200          trigger_error('ATTACHMENT_FUNCTIONALITY_DISABLED');
 201      }
 202   
 203      if ($attachment['is_orphan'])
 204      {
 205          // We allow admins having attachment permissions to see orphan attachments...
 206          $own_attachment = ($auth->acl_get('a_attach') || $attachment['poster_id'] == $user->data['user_id']) ? true : false;
 207   
 208          if (!$own_attachment || ($attachment['in_message'] && !$auth->acl_get('u_pm_download')) || (!$attachment['in_message'] && !$auth->acl_get('u_download')))
 209          {
 210              send_status_line(404, 'Not Found');
 211              trigger_error('ERROR_NO_ATTACHMENT');
 212          }
 213   
 214          // Obtain all extensions...
 215          $extensions = $cache->obtain_attach_extensions(true);
 216      }
 217      else
 218      {
 219          if (!$attachment['in_message'])
 220          {
 221              phpbb_download_handle_forum_auth($db, $auth, $attachment['topic_id']);
 222   
 223              $sql = 'SELECT forum_id, poster_id, post_visibility
 224                  FROM ' . POSTS_TABLE . '
 225                  WHERE post_id = ' . (int) $attachment['post_msg_id'];
 226              $result = $db->sql_query($sql);
 227              $post_row = $db->sql_fetchrow($result);
 228              $db->sql_freeresult($result);
 229   
 230              if (!$post_row || !$phpbb_content_visibility->is_visible('post', $post_row['forum_id'], $post_row))
 231              {
 232                  // Attachment of a soft deleted post and the user is not allowed to see the post
 233                  send_status_line(404, 'Not Found');
 234                  trigger_error('ERROR_NO_ATTACHMENT');
 235              }
 236          }
 237          else
 238          {
 239              // Attachment is in a private message.
 240              $post_row = array('forum_id' => false);
 241              phpbb_download_handle_pm_auth($db, $auth, $user->data['user_id'], $attachment['post_msg_id']);
 242          }
 243   
 244          $extensions = array();
 245          if (!extension_allowed($post_row['forum_id'], $attachment['extension'], $extensions))
 246          {
 247              send_status_line(403, 'Forbidden');
 248              trigger_error(sprintf($user->lang['EXTENSION_DISABLED_AFTER_POSTING'], $attachment['extension']));
 249          }
 250      }
 251   
 252      $download_mode = (int) $extensions[$attachment['extension']]['download_mode'];
 253      $display_cat = $extensions[$attachment['extension']]['display_cat'];
 254   
 255      if ($display_cat == ATTACHMENT_CATEGORY_IMAGE || $display_cat == ATTACHMENT_CATEGORY_THUMB)
 256      {
 257          // Do not display if either display inline is disabled or user is not allowed to view images
 258          if (!$config['img_display_inlined'] || !$user->optionget('viewimg'))
 259          {
 260              $display_cat = ATTACHMENT_CATEGORY_NONE;
 261          }
 262      }
 263   
 264      /**
 265      * Event to modify data before sending file to browser
 266      *
 267      * @event core.download_file_send_to_browser_before
 268      * @var    int        attach_id            The attachment ID
 269      * @var    array    attachment            Array with attachment data
 270      * @var    int        display_cat            Attachment category
 271      * @var    int        download_mode        File extension specific download mode
 272      * @var    array    extensions            Array with file extensions data
 273      * @var    string    mode                Download mode
 274      * @var    bool    thumbnail            Flag indicating if the file is a thumbnail
 275      * @since 3.1.6-RC1
 276      * @changed 3.1.7-RC1    Fixing wrong name of a variable (replacing "extension" by "extensions")
 277      */
 278      $vars = array(
 279          'attach_id',
 280          'attachment',
 281          'display_cat',
 282          'download_mode',
 283          'extensions',
 284          'mode',
 285          'thumbnail',
 286      );
 287      extract($phpbb_dispatcher->trigger_event('core.download_file_send_to_browser_before', compact($vars)));
 288   
 289      if ($thumbnail)
 290      {
 291          $attachment['physical_filename'] = 'thumb_' . $attachment['physical_filename'];
 292      }
 293      else if ($display_cat == ATTACHMENT_CATEGORY_NONE && !$attachment['is_orphan'] && !phpbb_http_byte_range($attachment['filesize']))
 294      {
 295          // Update download count
 296          phpbb_increment_downloads($db, $attachment['attach_id']);
 297      }
 298   
 299      if ($display_cat == ATTACHMENT_CATEGORY_IMAGE && $mode === 'view' && (strpos($attachment['mimetype'], 'image') === 0) && (strpos(strtolower($user->browser), 'msie') !== false) && !phpbb_is_greater_ie_version($user->browser, 7))
 300      {
 301          wrap_img_in_html(append_sid($phpbb_root_path . 'download/file.' . $phpEx, 'id=' . $attachment['attach_id']), $attachment['real_filename']);
 302          file_gc();
 303      }
 304      else
 305      {
 306          // Determine the 'presenting'-method
 307          if ($download_mode == PHYSICAL_LINK)
 308          {
 309              // This presenting method should no longer be used
 310              if (!@is_dir($phpbb_root_path . $config['upload_path']))
 311              {
 312                  send_status_line(500, 'Internal Server Error');
 313                  trigger_error($user->lang['PHYSICAL_DOWNLOAD_NOT_POSSIBLE']);
 314              }
 315   
 316              redirect($phpbb_root_path . $config['upload_path'] . '/' . $attachment['physical_filename']);
 317              file_gc();
 318          }
 319          else
 320          {
 321              send_file_to_browser($attachment, $config['upload_path'], $display_cat);
 322              file_gc();
 323          }
 324      }
 325  }
 326   

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