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<?php

/**
 * WPSEO plugin file.
 *
 * @package WPSEO\Admin
 */

if ( ! defined( 'WPSEO_VERSION' ) ) {
  header( 'Status: 403 Forbidden' );
  header( 'HTTP/1.1 403 Forbidden' );
  exit();
}

$yform     = Yoast_Form::get_instance();
$home_path = get_home_path();

if ( ! is_writable( $home_path ) && ! empty( $_SERVER['DOCUMENT_ROOT'] ) ) {
  $home_path = $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR;
}

$robots_file    = $home_path . 'robots.txt';
$ht_access_file = $home_path . '.htaccess';

if ( isset( $_POST['create_robots'] ) ) {
  if ( ! current_user_can( 'edit_files' ) ) {
    $die_msg = sprintf(
      /* translators: %s expands to robots.txt. */
      __( 'You cannot create a %s file.', 'wordpress-seo' ),
      'robots.txt'
    );
    die( esc_html( $die_msg ) );
  }

  check_admin_referer( 'wpseo_create_robots' );

  ob_start();
  error_reporting( 0 );
  do_robots();
  $robots_content = ob_get_clean();

  $f = fopen( $robots_file, 'x' );
  fwrite( $f, $robots_content );
}

if ( isset( $_POST['submitrobots'] ) ) {
  if ( ! current_user_can( 'edit_files' ) ) {
    $die_msg = sprintf(
      /* translators: %s expands to robots.txt. */
      __( 'You cannot edit the %s file.', 'wordpress-seo' ),
      'robots.txt'
    );
    die( esc_html( $die_msg ) );
  }

  check_admin_referer( 'wpseo-robotstxt' );

  if ( isset( $_POST['robotsnew'] ) && file_exists( $robots_file ) ) {
    $robotsnew = sanitize_textarea_field( wp_unslash( $_POST['robotsnew'] ) );
    if ( is_writable( $robots_file ) ) {
      $f = fopen( $robots_file, 'w+' );
      fwrite( $f, $robotsnew );
      fclose( $f );
      $msg = sprintf(
        /* translators: %s expands to robots.txt. */
        __( 'Updated %s', 'wordpress-seo' ),
        'robots.txt'
      );
    }
  }
}

if ( isset( $_POST['submithtaccess'] ) ) {
  if ( ! current_user_can( 'edit_files' ) ) {
    $die_msg = sprintf(
      /* translators: %s expands to ".htaccess". */
      __( 'You cannot edit the %s file.', 'wordpress-seo' ),
      '.htaccess'
    );
    die( esc_html( $die_msg ) );
  }

  check_admin_referer( 'wpseo-htaccess' );

  if ( isset( $_POST['htaccessnew'] ) && file_exists( $ht_access_file ) ) {
    $ht_access_new = wp_unslash( $_POST['htaccessnew'] );
    if ( is_writable( $ht_access_file ) ) {
      $f = fopen( $ht_access_file, 'w+' );
      fwrite( $f, $ht_access_new );
      fclose( $f );
    }
  }
}

if ( is_multisite() ) {
  $action_url = network_admin_url( 'admin.php?page=wpseo_files' );
  $yform->admin_header( false, 'wpseo_ms' );
}
else {
  $action_url = admin_url( 'admin.php?page=wpseo_tools&tool=file-editor' );

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