maintenance/dev/includes/router.php

   1 <?php
   2 /**
   3  * Router for the php cli-server built-in webserver.
   4  * https://secure.php.net/manual/en/features.commandline.webserver.php
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19  * http://www.gnu.org/copyleft/gpl.html
  20  *
  21  * @file
  22  */
  23
  24 if ( PHP_SAPI != 'cli-server' ) {
  25         die( "This script can only be run by php's cli-server sapi." );
  26 }
  27
  28 ini_set( 'display_errors', 1 );
  29 error_reporting( E_ALL );
  30
  31 if ( isset( $_SERVER["SCRIPT_FILENAME"] ) ) {
  32         # Known resource, sometimes a script sometimes a file
  33         $file = $_SERVER["SCRIPT_FILENAME"];
  34 } elseif ( isset( $_SERVER["SCRIPT_NAME"] ) ) {
  35         # Usually unknown, document root relative rather than absolute
  36         # Happens with some cases like /wiki/File:Image.png
  37         if ( is_readable( $_SERVER['DOCUMENT_ROOT'] . $_SERVER["SCRIPT_NAME"] ) ) {
  38                 # Just in case this actually IS a file, set it here
  39                 $file = $_SERVER['DOCUMENT_ROOT'] . $_SERVER["SCRIPT_NAME"];
  40         } else {
  41                 # Otherwise let's pretend that this is supposed to go to index.php
  42                 $file = $_SERVER['DOCUMENT_ROOT'] . '/index.php';
  43         }
  44 } else {
  45         # Meh, we'll just give up
  46         return false;
  47 }
  48
  49 # And now do handling for that $file
  50
  51 if ( !is_readable( $file ) ) {
  52         # Let the server throw the error if it doesn't exist
  53         return false;
  54 }
  55 $ext = pathinfo( $file, PATHINFO_EXTENSION );
  56 if ( $ext == 'php' || $ext == 'php5' ) {
  57         return false;
  58 }
  59 $mime = false;
  60 // Borrow mime type file from MimeAnalyzer
  61 $lines = explode( "\n", file_get_contents( "includes/libs/mime/mime.types" ) );
  62 foreach ( $lines as $line ) {
  63         $exts = explode( " ", $line );
  64         $mime = array_shift( $exts );
  65         if ( in_array( $ext, $exts ) ) {
  66                 break; # this is the right value for $mime
  67         }
  68         $mime = false;
  69 }
  70 if ( !$mime ) {
  71         $basename = basename( $file );
  72         if ( $basename == strtoupper( $basename ) ) {
  73                 # IF it's something like README serve it as text
  74                 $mime = "text/plain";
  75         }
  76 }
  77 if ( $mime ) {
  78         # Use custom handling to serve files with a known MIME type
  79         # This way we can serve things like .svg files that the built-in
  80         # PHP webserver doesn't understand.
  81         # ;) Nicely enough we just happen to bundle a mime.types file
  82         $f = fopen( $file, 'rb' );
  83         if ( preg_match( '#^text/#', $mime ) ) {
  84                 # Text should have a charset=UTF-8 (php's webserver does this too)
  85                 header( "Content-Type: $mime; charset=UTF-8" );
  86         } else {
  87                 header( "Content-Type: $mime" );
  88         }
  89         header( "Content-Length: " . filesize( $file ) );
  90         // Stream that out to the browser
  91         fpassthru( $f );
  92
  93         return true;
  94 }
  95
  96 # Let the php server handle things on its own otherwise
  97 return false;