WebStart.php 3.6 KB

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  1. <?php
  2. /**
  3. * This does the initial set up for a web request.
  4. *
  5. * It does some security checks, loads autoloaders, constants, and
  6. * global functions, starts the profiler, loads the configuration,
  7. * and loads Setup.php, which loads extensions using the extension
  8. * registration system and initializes the application's global state.
  9. *
  10. * This program is free software; you can redistribute it and/or modify
  11. * it under the terms of the GNU General Public License as published by
  12. * the Free Software Foundation; either version 2 of the License, or
  13. * (at your option) any later version.
  14. *
  15. * This program is distributed in the hope that it will be useful,
  16. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18. * GNU General Public License for more details.
  19. *
  20. * You should have received a copy of the GNU General Public License along
  21. * with this program; if not, write to the Free Software Foundation, Inc.,
  22. * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  23. * http://www.gnu.org/copyleft/gpl.html
  24. *
  25. * @file
  26. */
  27. # T17461: Make IE8 turn off content sniffing. Everybody else should ignore this
  28. # We're adding it here so that it's *always* set, even for alternate entry
  29. # points and when $wgOut gets disabled or overridden.
  30. header( 'X-Content-Type-Options: nosniff' );
  31. # Valid web server entry point, enable includes.
  32. # Please don't move this line to includes/Defines.php. This line essentially
  33. # defines a valid entry point. If you put it in includes/Defines.php, then
  34. # any script that includes it becomes an entry point, thereby defeating
  35. # its purpose.
  36. define( 'MEDIAWIKI', true );
  37. # Full path to the installation directory.
  38. $IP = getenv( 'MW_INSTALL_PATH' );
  39. if ( $IP === false ) {
  40. $IP = dirname( __DIR__ );
  41. }
  42. // If no LocalSettings file exists, try to display an error page
  43. // (use a callback because it depends on TemplateParser)
  44. if ( !defined( 'MW_CONFIG_CALLBACK' ) ) {
  45. if ( !defined( 'MW_CONFIG_FILE' ) ) {
  46. define( 'MW_CONFIG_FILE', "$IP/LocalSettings.php" );
  47. }
  48. if ( !is_readable( MW_CONFIG_FILE ) ) {
  49. function wfWebStartNoLocalSettings() {
  50. # LocalSettings.php is the per-site customization file. If it does not exist
  51. # the wiki installer needs to be launched or the generated file uploaded to
  52. # the root wiki directory. Give a hint, if it is not readable by the server.
  53. global $IP;
  54. require_once "$IP/includes/NoLocalSettings.php";
  55. die();
  56. }
  57. define( 'MW_CONFIG_CALLBACK', 'wfWebStartNoLocalSettings' );
  58. }
  59. }
  60. // Custom setup for WebStart entry point
  61. if ( !defined( 'MW_SETUP_CALLBACK' ) ) {
  62. function wfWebStartSetup() {
  63. // Initialise output buffering
  64. // Check for previously set up buffers, to avoid a mix of gzip and non-gzip output.
  65. if ( ob_get_level() == 0 ) {
  66. ob_start( 'MediaWiki\\OutputHandler::handle' );
  67. }
  68. }
  69. define( 'MW_SETUP_CALLBACK', 'wfWebStartSetup' );
  70. }
  71. require_once "$IP/includes/Setup.php";
  72. # Multiple DBs or commits might be used; keep the request as transactional as possible
  73. if ( isset( $_SERVER['REQUEST_METHOD'] ) && $_SERVER['REQUEST_METHOD'] === 'POST' ) {
  74. ignore_user_abort( true );
  75. }
  76. if ( !defined( 'MW_API' ) &&
  77. RequestContext::getMain()->getRequest()->getHeader( 'Promise-Non-Write-API-Action' )
  78. ) {
  79. header( 'Cache-Control: no-cache' );
  80. header( 'Content-Type: text/html; charset=utf-8' );
  81. HttpStatus::header( 400 );
  82. $errorHtml = wfMessage( 'nonwrite-api-promise-error' )
  83. ->useDatabase( false )
  84. ->inContentLanguage()
  85. ->escaped();
  86. $content = <<<HTML
  87. <!DOCTYPE html>
  88. <html>
  89. <head><meta charset="UTF-8" /></head>
  90. <body>
  91. $errorHtml
  92. </body>
  93. </html>
  94. HTML;
  95. header( 'Content-Length: ' . strlen( $content ) );
  96. echo $content;
  97. die();
  98. }