<?php

/**
 * Options Management Administration Screen.
 *
 * If accessed directly in a browser this page shows a list of all saved options
 * along with editable fields for their values. Serialized data is not supported
 * and there is no way to remove options via this page. It is not linked to from
 * anywhere else in the admin.
 *
 * This file is also the target of the forms in core and custom options pages
 * that use the Settings API. In this case it saves the new option values
 * and returns the user to their page of origin.
 *
 * @package WordPress
 * @subpackage Administration
 */


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

// Used in the HTML title tag.
$title       = __( 'Settings' );
$this_file   = 'options.php';
$parent_file = 'options-general.php';

wp_reset_vars( array( 'action', 'option_page' ) );

$capability = 'manage_options';

// This is for back compat and will eventually be removed.
if ( empty( $option_page ) ) {
  $option_page = 'options';
} else {

  
/**
 * Filters the capability required when using the Settings API.
 *
 * By default, the options groups for all registered settings require the manage_options capability.
 * This filter is required to change the capability required for a certain options page.
 *
 * @since 3.2.0
 *
 * @param string $capability The capability used for the page, which is manage_options by default.
 */
  $capability = apply_filters( "option_page_capability_{$option_page}", $capability );
}

if ( ! current_user_can( $capability ) ) {
  wp_die(
    '<h1>' . __( 'You need a higher level of permission.' ) . '</h1>' .
    '<p>' . __( 'Sorry, you are not allowed to manage options for this site.' ) . '</p>',
    403
  );
}

// Handle admin email change requests.
if ( ! empty( $_GET['adminhash'] ) ) {
  $new_admin_details = get_option( 'adminhash' );
  $redirect          = 'options-general.php?updated=false';

  if ( is_array( $new_admin_details )
    && hash_equals( $new_admin_details['hash'], $_GET['adminhash'] )
    && ! empty( $new_admin_details['newemail'] )
  ) {
    update_option( 'admin_email', $new_admin_details['newemail'] );
    delete_option( 'adminhash' );
    delete_option( 'new_admin_email' );
    $redirect = 'options-general.php?updated=true';
  }

  wp_redirect( admin_url( $redirect ) );
  exit;
} elseif ( ! empty( $_GET['dismiss'] ) && 'new_admin_email' === $_GET['dismiss'] ) {
  check_admin_referer( 'dismiss-' . get_current_blog_id() . '-new_admin_email' );
  delete_option( 'adminhash' );
  delete_option( 'new_admin_email' );
  wp_redirect( admin_url( 'options-general.php?updated=true' ) );
  exit;
}

if ( is_multisite() && ! current_user_can( 'manage_network_options' ) && 'update' !== $action ) {
  wp_die(
    '<h1>' . __( 'You need a higher level of permission.' ) . '</h1>' .
    '<p>' . __( 'Sorry, you are not allowed to delete these items.' ) . '</p>',
    403
  );
}

$allowed_options            = array(
  'general'    => array(
    'blogname',
    'blogdescription',
    'gmt_offset',
    'date_format',
    'time_format',
    'start_of_week',
    'timezone_string',
    'WPLANG',
    'new_admin_email',
  ),
  'discussion' => array(
    'default_pingback_flag',
    'default_ping_status',
    'default_comment_status',
    'comments_notify',
    'moderation_notify',
    'comment_moderation',
    'require_name_email',
    'comment_previously_approved',
    'comment_max_links',
    'moderation_keys',
    'disallowed_keys',
    'show_avatars',
    'avatar_rating',
    'avatar_default',
    'close_comments_for_old_posts',
    'close_comments_days_old',
    'thread_comments',
    'thread_comments_depth',
    'page_comments',
    'comments_per_page',
    'default_comments_page',
    'comment_order',
    'comment_registration',
    'show_comments_cookies_opt_in',
  ),
  'media'      => array(
    'thumbnail_size_w',
    'thumbnail_size_h',
    'thumbnail_crop',
    'medium_size_w',
    'medium_size_h',
    'large_size_w',
    'large_size_h',
    'image_default_size',
    'image_default_align',
    'image_default_link_type',
  ),
  'reading'    => array(
    'posts_per_page',
    'posts_per_rss',
    'rss_use_excerpt',
    'show_on_front',
    'page_on_front',
    'page_for_posts',
    'blog_public',
  ),
  'writing'    => array(
    'default_category',
    'default_email_category',
    'default_link_category',
    'default_post_format',
  ),
);
$allowed_options['misc']    = array();
$allowed_options['options'] = array();
$allowed_options['privacy'] = array();

$mail_options = array( 'mailserver_url', 'mailserver_port', 'mailserver_login', 'mailserver_pass' );

if ( ! in_array( get_option( 'blog_charset' ), array( 'utf8', 'utf-8', 'UTF8', 'UTF-8' ), true ) ) {
  $allowed_options['reading'][] = 'blog_charset';
}

if ( get_site_option( 'initial_db_version' ) < 32453 ) {
  $allowed_options['writing'][] = 'use_smilies';
  $allowed_options['writing'][] = 'use_balanceTags';
}

if ( ! is_multisite() ) {
  if ( ! defined( 'WP_SITEURL' ) ) {
    $allowed_options['general'][] = 'siteurl';
  }
  if ( ! defined( 'WP_HOME' ) ) {
    $allowed_options['general'][] = 'home';
  }

  $allowed_options['general'][] = 'users_can_register';
  $allowed_options['general'][] = 'default_role';

  $allowed_options['writing']   = array_merge( $allowed_options['writing'], $mail_options );
  $allowed_options['writing'][] = 'ping_sites';

  $allowed_options['media'][] = 'uploads_use_yearmonth_folders';

  /*
	 * If upload_url_path is not the default (empty),
	 * or upload_path is not the default ('wp-content/uploads' or empty),
	 * they can be edited, otherwise they're locked.
	 */
  if ( get_option( 'upload_url_path' )
    || get_option( 'upload_path' ) && 'wp-content/uploads' !== get_option( 'upload_path' )
  ) {
    $allowed_options['media'][] = 'upload_path';
    $allowed_options['media'][] = 'upload_url_path';
  }
} else {
  
/**
 * Filters whether the post-by-email functionality is enabled.
 *
 * @since 3.0.0
 *
 * @param bool $enabled Whether post-by-email configuration is enabled. Default true.
 */
  if ( apply_filters( 'enable_post_by_email_configuration', true ) ) {
    $allowed_options['writing'] = array_merge( $allowed_options['writing'], $mail_options );
  }
}


/**
 * Filters the allowed options list.
 *
 * @since 2.7.0
 * @deprecated 5.5.0 Use {@see 'allowed_options'} instead.
 *
 * @param array $allowed_options The allowed options list.
 */
$allowed_options = apply_filters_deprecated(
  'whitelist_options',
  array( $allowed_options ),
  '5.5.0',
  'allowed_options',
  __( 'Please consider writing more inclusive code.' )
);


/**
 * Filters the allowed options list.
 *
 * @since 5.5.0
 *
 * @param array $allowed_options The allowed options list.
 */
$allowed_options = apply_filters( 'allowed_options', $allowed_options );

if ( 'update' === $action ) { // We are saving settings sent from a settings page.
  if ( 'options' === $option_page && ! isset( $_POST['option_page'] ) ) { // This is for back compat and will eventually be removed.
    $unregistered = true;
    check_admin_referer( 'update-options' );
  } else {
    $unregistered = false;
    check_admin_referer( $option_page . '-options' );
  }

  if ( ! isset( $allowed_options[ $option_page ] ) ) {
    wp_die(
      sprintf(
        /* translators: %s: The options page name. */
        __( '<strong>Error:</strong> The %s options page is not in the allowed options list.' ),
        '<code>' . esc_html( $option_page ) . '</code>'
      )
    );
  }

  if ( 'options' === $option_page ) {
    if ( is_multisite() && ! current_user_can( 'manage_network_options' ) ) {
      wp_die( __( 'Sorry, you are not allowed to modify unregistered settings for this site.' ) );
    }
    $options = isset( $_POST['page_options'] ) ? explode( ',', wp_unslash( $_POST['page_options'] ) ) : null;
  } else {
    $options = $allowed_options[ $option_page ];
  }

  if ( 'general' === $option_page ) {
    // Handle custom date/time formats.
    if ( ! empty( $_POST['date_format'] ) && isset( $_POST['date_format_custom'] )
      && '\c\u\s\t\o\m' === wp_unslash( $_POST['date_format'] )
    ) {
      $_POST['date_format'] = $_POST['date_format_custom'];
    }

    if ( ! empty( $_POST['time_format'] ) && isset( $_POST['time_format_custom'] )
      && '\c\u\s\t\o\m' === wp_unslash( $_POST['time_format'] )
    ) {
      $_POST['time_format'] = $_POST['time_format_custom'];
    }

    // Map UTC+- timezones to gmt_offsets and set timezone_string to empty.
    if ( ! empty( $_POST['timezone_string'] ) && preg_match( '/^UTC[+-]/', $_POST['timezone_string'] ) ) {
      $_POST['gmt_offset']      = $_POST['timezone_string'];
      $_POST['gmt_offset']      = preg_replace( '/UTC\+?/', '', $_POST['gmt_offset'] );
      $_POST['timezone_string'] = '';
    }

    // Handle translation installation.
    if ( ! empty( $_POST['WPLANG'] ) && current_user_can( 'install_languages' ) ) {
      require_once ABSPATH . 'wp-admin/includes/translation-install.php';

      if ( wp_can_install_language_pack() ) {
        $language = wp_download_language_pack( $_POST['WPLANG'] );
        if ( $language ) {
          $_POST['WPLANG'] = $language;
        }
      }
    }
  }

  if ( $options ) {
    $user_language_old = get_user_locale();

    foreach ( $options as $option ) {
      if ( $unregistered ) {
        _deprecated_argument(
          'options.php',
          '2.7.0',
          sprintf(
            /* translators: %s: The option/setting. */
            __( 'The %s setting is unregistered. Unregistered settings are deprecated. See https://developer.wordpress.org/plugins/settings/settings-api/' ),
            '<code>' . esc_html( $option ) . '</code>'
          )
        );
      }

      $option = trim( $option );
      $value  = null;
      if ( isset( $_POST[ $option ] ) ) {
        $value = $_POST[ $option ];
        if ( ! is_array( $value ) ) {
          $value = trim( $value );
        }
        $value = wp_unslash( $value );
      }
      update_option( $option, $value );
    }

    /*
		 * Switch translation in case WPLANG was changed.
		 * The global $locale is used in get_locale() which is
		 * used as a fallback in get_user_locale().
		 */
    unset( $GLOBALS['locale'] );
    $user_language_new = get_user_locale();
    if ( $user_language_old !== $user_language_new ) {
      load_default_textdomain( $user_language_new );
    }
  } else {
    add_settings_error( 'general', 'settings_updated', __( 'Settings save failed.' ), 'error' );
  }

  /*
	 * Handle settings errors and return to options page.
	 */

  // If no settings errors were registered add a general 'updated' message.
  if ( ! count( get_settings_errors() ) ) {
    add_settings_error( 'general', 'settings_updated', __( 'Settings saved.' ), 'success' );
  }

  set_transient( 'settings_errors', get_settings_errors(), 30 ); // 30 seconds.

  // Redirect back to the settings page that was submitted.
  $goback = add_query_arg( 'settings-updated', 'true', wp_get_referer() );
  wp_redirect( $goback );
  exit;
}

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

<div class="wrap">
	<h1><?php esc_html_e( 'All Settings' ); ?></h1>

	<div class="notice notice-warning">
		<p><strong><?php _e( 'Warning:' ); ?></strong> <?php _e( 'This page allows direct access to your site settings. You can break things here. Please be cautious!' ); ?></p>
	</div>

	<form name="form" action="options.php" method="post" id="all-options">
		<?php wp_nonce_field( 'options-options' ); ?>
		<input type="hidden" name="action" value="update" />
		<input type="hidden" name="option_page" value="options" />
		<table class="form-table" role="presentation">
<?php
$options = $wpdb->get_results( "SELECT * FROM $wpdb->options ORDER BY option_name" );

foreach ( (array) $options as $option ) :
  $disabled = false;

  if ( '' === $option->option_name ) {
    continue;
  }

  if ( is_serialized( $option->option_value ) ) {
    if ( is_serialized_string( $option->option_value ) ) {
      // This is a serialized string, so we should display it.
      $value               = maybe_unserialize( $option->option_value );
      $options_to_update[] = $option->option_name;
      $class               = 'all-options';
    } else {
      $value    = 'SERIALIZED DATA';
      $disabled = true;
      $class    = 'all-options disabled';
    }
  } else {
    $value               = $option->option_value;
    $options_to_update[] = $option->option_name;
    $class               = 'all-options';
  }

  $name = esc_attr( $option->option_name );
  ?>
<tr>
	<th scope="row"><label for="<?php echo $name; ?>"><?php echo esc_html( $option->option_name ); ?></label></th>
<td>
	<?php if ( strpos( $value, "\n" ) !== false ) : ?>
		<textarea class="<?php echo $class; ?>" name="<?php echo $name; ?>" id="<?php echo $name; ?>" cols="30" rows="5"><?php echo esc_textarea( $value ); ?></textarea>
	<?php else : ?>
		<input class="regular-text <?php echo $class; ?>" type="text" name="<?php echo $name; ?>" id="<?php echo $name; ?>" value="<?php echo esc_attr( $value ); ?>"<?php disabled( $disabled, true ); ?> />
	<?php endif; ?></td>
</tr>
<?php endforeach; ?>
</table>

<input type="hidden" name="page_options" value="<?php echo esc_attr( implode( ',', $options_to_update ) ); ?>" />

<?php submit_button( __( 'Save Changes' ), 'primary', 'Update' ); ?>

</form>
</div>

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