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<?php

/**
 * Multisite themes administration panel.
 *
 * @package WordPress
 * @subpackage Multisite
 * @since 3.1.0
 */


/** Load WordPress Administration Bootstrap */
require_once __DIR__ . '/admin.php';

if ( ! current_user_can( 'manage_network_themes' ) ) {
  wp_die( __( 'Sorry, you are not allowed to manage network themes.' ) );
}

$wp_list_table = _get_list_table( 'WP_MS_Themes_List_Table' );
$pagenum       = $wp_list_table->get_pagenum();

$action = $wp_list_table->current_action();

$s = isset( $_REQUEST['s'] ) ? $_REQUEST['s'] : '';

// Clean up request URI from temporary args for screen options/paging uri's to work as expected.
$temp_args = array(
  'enabled',
  'disabled',
  'deleted',
  'error',
  'enabled-auto-update',
  'disabled-auto-update',
);

$_SERVER['REQUEST_URI'] = remove_query_arg( $temp_args, $_SERVER['REQUEST_URI'] );
$referer                = remove_query_arg( $temp_args, wp_get_referer() );

if ( $action ) {
  switch ( $action ) {
    case 'enable':
      check_admin_referer( 'enable-theme_' . $_GET['theme'] );
      WP_Theme::WP_Theme::network_enable_theme( $_GET['theme'] );
      if ( false === strpos( $referer, '/network/themes.php' ) ) {
        wp_redirect( network_admin_url( 'themes.php?enabled=1' ) );
      } else {
        wp_safe_redirect( add_query_arg( 'enabled', 1, $referer ) );
      }
      exit;
    case 'disable':
      check_admin_referer( 'disable-theme_' . $_GET['theme'] );
      WP_Theme::WP_Theme::network_disable_theme( $_GET['theme'] );
      wp_safe_redirect( add_query_arg( 'disabled', '1', $referer ) );
      exit;
    case 'enable-selected':
      check_admin_referer( 'bulk-themes' );
      $themes = isset( $_POST['checked'] ) ? (array) $_POST['checked'] : array();
      if ( empty( $themes ) ) {
        wp_safe_redirect( add_query_arg( 'error', 'none', $referer ) );
        exit;
      }
      WP_Theme::WP_Theme::network_enable_theme( (array) $themes );
      wp_safe_redirect( add_query_arg( 'enabled', count( $themes ), $referer ) );
      exit;
    case 'disable-selected':
      check_admin_referer( 'bulk-themes' );
      $themes = isset( $_POST['checked'] ) ? (array) $_POST['checked'] : array();
      if ( empty( $themes ) ) {
        wp_safe_redirect( add_query_arg( 'error', 'none', $referer ) );
        exit;
      }
      WP_Theme::WP_Theme::network_disable_theme( (array) $themes );
      wp_safe_redirect( add_query_arg( 'disabled', count( $themes ), $referer ) );
      exit;
    case 'update-selected':
      check_admin_referer( 'bulk-themes' );

      if ( isset( $_GET['themes'] ) ) {
        $themes = explode( ',', $_GET['themes'] );
      } elseif ( isset( $_POST['checked'] ) ) {
        $themes = (array) $_POST['checked'];
      } else {
        $themes = array();
      }

      // Used in the HTML title tag.
      $title       = __( 'Update Themes' );
      $parent_file = 'themes.php';

      require_once ABSPATH . 'wp-admin/admin-header.php';

      echo '<div class="wrap">';
      echo '<h1>' . esc_html( $title ) . '</h1>';

      $url = Telf_admin_url( 'update.php?action=update-selected-themes&amp;themes=' . urlencode( implode( ',', $themes ) ) );
      $url = wp_nonce_url( $url, 'bulk-update-themes' );

      echo "<iframe src='$url' style='width: 100%; height:100%; min-height:850px;'></iframe>";
      echo '</div>';
      require_once ABSPATH . 'wp-admin/admin-footer.php';
      exit;
    case 'delete-selected':
      if ( ! current_user_can( 'delete_themes' ) ) {
        wp_die( __( 'Sorry, you are not allowed to delete themes for this site.' ) );
      }

      check_admin_referer( 'bulk-themes' );

      $themes = isset( $_REQUEST['checked'] ) ? (array) $_REQUEST['checked'] : array();

      if ( empty( $themes ) ) {
        wp_safe_redirect( add_query_arg( 'error', 'none', $referer ) );
        exit;
      }

      $themes = array_diff( $themes, array( get_option( 'stylesheet' ), get_option( 'template' ) ) );

      if ( empty( $themes ) ) {
        wp_safe_redirect( add_query_arg( 'error', 'main', $referer ) );
        exit;
      }

      $theme_info = array();
      foreach ( $themes as $key => $theme ) {
        $theme_info[ $theme ] = wp_get_theme( $theme );
      }

      require ABSPATH . 'wp-admin/update.php';

      $parent_file = 'themes.php';

      if ( ! isset( $_REQUEST['verify-delete'] ) ) {
        wp_enqueue_script( 'jquery' );
        require_once ABSPATH . 'wp-admin/admin-header.php';
        $themes_to_delete = count( $themes );
        ?>
				<div class="wrap">
				<?php if ( 1 === $themes_to_delete ) : ?>
					<h1><?php _e( 'Delete Theme' ); ?></h1>
					<div class="error"><p><strong><?php _e( 'Caution:' ); ?></strong> <?php _e( 'This theme may be active on other sites in the network.' ); ?></p></div>
					<p><?php _e( 'You are about to remove the following theme:' ); ?></p>
				<?php else : ?>
					<h1><?php _e( 'Delete Themes' ); ?></h1>
					<div class="error"><p><strong><?php _e( 'Caution:' ); ?></strong> <?php _e( 'These themes may be active on other sites in the network.' ); ?></p></div>
					<p><?php _e( 'You are about to remove the following themes:' ); ?></p>
				<?php endif; ?>
					<ul class="ul-disc">
					<?php
          foreach ( $theme_info as $theme ) {
            echo '<li>' . sprintf(
              /* translators: 1: Theme name, 2: Theme author. */
              _x( '%1$s by %2$s', 'theme' ),
              '<strong>' . $theme->display( 'Name' ) . '</strong>',
              '<em>' . $theme->display( 'Author' ) . '</em>'
            ) . '</li>';
          }
          ?>
					</ul>
				<?php if ( 1 === $themes_to_delete ) : ?>
					<p><?php _e( 'Are you sure you want to delete this theme?' ); ?></p>
				<?php else : ?>
					<p><?php _e( 'Are you sure you want to delete these themes?' ); ?></p>
				<?php endif; ?>
				<form method="post" action="<?php echo esc_url( $_SERVER['REQUEST_URI'] ); ?>" style="display:inline;">
					<input type="hidden" name="verify-delete" value="1" />
					<input type="hidden" name="action" value="delete-selected" />
					<?php

          foreach ( (array) $themes as $theme ) {
            echo '<input type="hidden" name="checked[]" value="' . esc_attr( $theme ) . '" />';
          }

          wp_nonce_field( 'bulk-themes' );

          if ( 1 === $themes_to_delete ) {
            submit_button( __( 'Yes, delete this theme' ), '', 'submit', false );
          } else {
            submit_button( __( 'Yes, delete these themes' ), '', 'submit', false );
          }

          ?>
				</form>
				<?php $referer = wp_get_referer(); ?>
				<form method="post" action="<?php echo $referer ? esc_url( $referer ) : ''; ?>" style="display:inline;">
					<?php submit_button( __( 'No, return me to the theme list' ), '', 'submit', false ); ?>
				</form>
				</div>
				<?php

        require_once ABSPATH . 'wp-admin/admin-footer.php';
        exit;
      } // End if verify-delete.

      foreach ( $themes as $theme ) {
        $delete_result = delete_theme(
          $theme,
          esc_url(
            add_query_arg(
              array(
                'verify-delete' => 1,
                'action'        => 'delete-selected',
                'checked'       => $_REQUEST['checked'],
                '_wpnonce'      => $_REQUEST['_wpnonce'],
              ),
              network_admin_url( 'themes.php' )
            )
          )
        );
      }

      $paged = ( $_REQUEST['paged'] ) ? $_REQUEST['paged'] : 1;
      wp_redirect(
        add_query_arg(
          array(
            'deleted' => count( $themes ),
            'paged'   => $paged,
            's'       => $s,
          ),
          network_admin_url( 'themes.php' )
        )
      );
      exit;
    case 'enable-auto-update':
    case 'disable-auto-update':
    case 'enable-auto-update-selected':
    case 'disable-auto-update-selected':
      if ( ! ( current_user_can( 'update_themes' ) && wp_is_auto_update_enabled_for_type( 'theme' ) ) ) {
        wp_die( __( 'Sorry, you are not allowed to change themes automatic update settings.' ) );
      }

      if ( 'enable-auto-update' === $action || 'disable-auto-update' === $action ) {
        check_admin_referer( 'updates' );
      } else {
        if ( empty( $_POST['checked'] ) ) {
          // Nothing to do.
          wp_safe_redirect( add_query_arg( 'error', 'none', $referer ) );
          exit;
        }

        check_admin_referer( 'bulk-themes' );
      }

      $auto_updates = (array) get_site_option( 'auto_update_themes', array() );

      if ( 'enable-auto-update' === $action ) {
        $auto_updates[] = $_GET['theme'];
        $auto_updates   = array_unique( $auto_updates );
        $referer        = add_query_arg( 'enabled-auto-update', 1, $referer );
      } elseif ( 'disable-auto-update' === $action ) {
        $auto_updates = array_diff( $auto_updates, array( $_GET['theme'] ) );
        $referer      = add_query_arg( 'disabled-auto-update', 1, $referer );
      } else {
        // Bulk enable/disable.
        $themes = (array) wp_unslash( $_POST['checked'] );

        if ( 'enable-auto-update-selected' === $action ) {
          $auto_updates = array_merge( $auto_updates, $themes );
          $auto_updates = array_unique( $auto_updates );
          $referer      = add_query_arg( 'enabled-auto-update', count( $themes ), $referer );
        } else {
          $auto_updates = array_diff( $auto_updates, $themes );
          $referer      = add_query_arg( 'disabled-auto-update', count( $themes ), $referer );
        }
      }

      $all_items = wp_get_themes();

      // Remove themes that don't exist or have been deleted since the option was last updated.
      $auto_updates = array_intersect( $auto_updates, array_keys( $all_items ) );

      update_site_option( 'auto_update_themes', $auto_updates );

      wp_safe_redirect( $referer );
      exit;
    default:
      $themes = isset( $_POST['checked'] ) ? (array) $_POST['checked'] : array();
      if ( empty( $themes ) ) {
        wp_safe_redirect( add_query_arg( 'error', 'none', $referer ) );
        exit;
      }
      check_admin_referer( 'bulk-themes' );

      
/** This action is documented in wp-admin/network/site-themes.php */
      $referer = apply_filters( 'handle_network_bulk_actions-' . get_current_screen()->id, $referer, $action, $themes ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores

      wp_safe_redirect( $referer );
      exit;
  }
}

$wp_list_table->prepare_items();

add_thickbox();

add_screen_option( 'per_page' );

get_current_screen()->add_help_tab(
  array(
    'id'      => 'overview',
    'title'   => __( 'Overview' ),
    'content' =>
      '<p>' . __( 'This screen enables and disables the inclusion of themes available to choose in the Appearance menu for each site. It does not activate or deactivate which theme a site is currently using.' ) . '</p>' .
      '<p>' . __( 'If the network admin disables a theme that is in use, it can still remain selected on that site. If another theme is chosen, the disabled theme will not appear in the site’s Appearance > Themes screen.' ) . '</p>' .
      '<p>' . __( 'Themes can be enabled on a site by site basis by the network admin on the Edit Site screen (which has a Themes tab); get there via the Edit action link on the All Sites screen. Only network admins are able to install or edit themes.' ) . '</p>',
  )
);

$help_sidebar_autoupdates = '';

if ( current_user_can( 'update_themes' ) && wp_is_auto_update_enabled_for_type( 'theme' ) ) {
  get_current_screen()->add_help_tab(
    array(
      'id'      => 'plugins-themes-auto-updates',
      'title'   => __( 'Auto-updates' ),
      'content' =>
        '<p>' . __( 'Auto-updates can be enabled or disabled for each individual theme. Themes with auto-updates enabled will display the estimated date of the next auto-update. Auto-updates depends on the WP-Cron task scheduling system.' ) . '</p>' .
        '<p>' . __( 'Please note: Third-party themes and plugins, or custom code, may override WordPress scheduling.' ) . '</p>',
    )
  );

  $help_sidebar_autoupdates = '<p>' . __( '<a href="https://wordpress.org/documentation/article/plugins-themes-auto-updates/">Documentation on Auto-updates</a>' ) . '</p>';
}

get_current_screen()->set_help_sidebar(
  '<p><strong>' . __( 'For more information:' ) . '</strong></p>' .
  '<p>' . __( '<a href="https://codex.wordpress.org/Network_Admin_Themes_Screen">Documentation on Network Themes</a>' ) . '</p>' .
  $help_sidebar_autoupdates .
  '<p>' . __( '<a href="https://wordpress.org/support/forums/">Support forums</a>' ) . '</p>'
);

get_current_screen()->set_screen_reader_content(
  array(
    'heading_views'      => __( 'Filter themes list' ),
    'heading_pagination' => __( 'Themes list navigation' ),
    'heading_list'       => __( 'Themes list' ),
  )
);

// Used in the HTML title tag.
$title       = __( 'Themes' );
$parent_file = 'themes.php';

wp_enqueue_script( 'updates' );
wp_enqueue_script( 'theme-preview' );

require_once ABSPATH . 'wp-admin/admin-header.php';

?>

<div class="wrap">
<h1 class="wp-heading-inline"><?php echo esc_html( $title ); ?></h1>

<?php if ( current_user_can( 'install_themes' ) ) : ?>
	<a href="theme-install.php" class="page-title-action"><?php echo esc_html_x( 'Add New', 'theme' ); ?></a>
<?php endif; ?>

<?php
if ( isset( $_REQUEST['s'] ) && strlen( $_REQUEST['s'] ) ) {
  echo '<span class="subtitle">';
  printf(
    /* translators: %s: Search query. */
    __( 'Search results for: %s' ),
    '<strong>' . esc_html( $s ) . '</strong>'
  );
  echo '</span>';
}
?>

<hr class="wp-header-end">

<?php
if ( isset( $_GET['enabled'] ) ) {
  $enabled = absint( $_GET['enabled'] );
  if ( 1 === $enabled ) {
    $message = __( 'Theme enabled.' );
  } else {
    /* translators: %s: Number of themes. */
    $message = _n( '%s theme enabled.', '%s themes enabled.', $enabled );
  }
  echo '<div id="message" class="notice notice-success is-dismissible"><p>' . sprintf( $message, number_format_i18n( $enabled ) ) . '</p></div>';
} elseif ( isset( $_GET['disabled'] ) ) {
  $disabled = absint( $_GET['disabled'] );
  if ( 1 === $disabled ) {
    $message = __( 'Theme disabled.' );
  } else {
    /* translators: %s: Number of themes. */
    $message = _n( '%s theme disabled.', '%s themes disabled.', $disabled );
  }
  echo '<div id="message" class="notice notice-success is-dismissible"><p>' . sprintf( $message, number_format_i18n( $disabled ) ) . '</p></div>';
} elseif ( isset( $_GET['deleted'] ) ) {
  $deleted = absint( $_GET['deleted'] );
  if ( 1 === $deleted ) {
    $message = __( 'Theme deleted.' );
  } else {
    /* translators: %s: Number of themes. */
    $message = _n( '%s theme deleted.', '%s themes deleted.', $deleted );
  }
  echo '<div id="message" class="notice notice-success is-dismissible"><p>' . sprintf( $message, number_format_i18n( $deleted ) ) . '</p></div>';
} elseif ( isset( $_GET['enabled-auto-update'] ) ) {
  $enabled = absint( $_GET['enabled-auto-update'] );
  if ( 1 === $enabled ) {
    $message = __( 'Theme will be auto-updated.' );
  } else {
    /* translators: %s: Number of themes. */
    $message = _n( '%s theme will be auto-updated.', '%s themes will be auto-updated.', $enabled );
  }
  echo '<div id="message" class="notice notice-success is-dismissible"><p>' . sprintf( $message, number_format_i18n( $enabled ) ) . '</p></div>';
} elseif ( isset( $_GET['disabled-auto-update'] ) ) {
  $disabled = absint( $_GET['disabled-auto-update'] );
  if ( 1 === $disabled ) {
    $message = __( 'Theme will no longer be auto-updated.' );
  } else {
    /* translators: %s: Number of themes. */
    $message = _n( '%s theme will no longer be auto-updated.', '%s themes will no longer be auto-updated.', $disabled );
  }
  echo '<div id="message" class="notice notice-success is-dismissible"><p>' . sprintf( $message, number_format_i18n( $disabled ) ) . '</p></div>';
} elseif ( isset( $_GET['error'] ) && 'none' === $_GET['error'] ) {
  echo '<div id="message" class="notice notice-error is-dismissible"><p>' . __( 'No theme selected.' ) . '</p></div>';
} elseif ( isset( $_GET['error'] ) && 'main' === $_GET['error'] ) {
  echo '<div id="message" class="notice notice-error is-dismissible"><p>' . __( 'You cannot delete a theme while it is active on the main site.' ) . '</p></div>';
}

?>

<form method="get">
<?php $wp_list_table->search_box( __( 'Search Installed Themes' ), 'theme' ); ?>
</form>

<?php
$wp_list_table->views();

if ( 'broken' === $status ) {
  echo '<p class="clear">' . __( 'The following themes are installed but incomplete.' ) . '</p>';
}
?>

<form id="bulk-action-form" method="post">
<input type="hidden" name="theme_status" value="<?php echo esc_attr( $status ); ?>" />
<input type="hidden" name="paged" value="<?php echo esc_attr( $page ); ?>" />

<?php $wp_list_table->display(); ?>
</form>

</div>

<?php
wp_print_request_filesystem_credentials_modal();
wp_print_admin_notice_templates();
wp_print_update_row_templates();

require_once ABSPATH . 'wp-admin/admin-footer.php';