10000 ) );
// Encode the API response body.
$checksumapibody = json_decode( wp_remote_retrieve_body( $checksumapi ), true );
set_transient( 'health-check-checksums', $checksumapibody, 2 * HOUR_IN_SECONDS );
// Remove the wp-content/ files from checking
foreach ( $checksumapibody['checksums'] as $file => $checksum ) {
if ( false !== strpos( $file, 'wp-content/' ) ) {
unset( $checksumapibody['checksums'][ $file ] );
}
}
return $checksumapibody;
}
/**
* Parses the results from the WordPress API call
*
* @uses file_exists()
* @uses md5_file()
* @uses ABSPATH
*
* @param array $checksums
*
* @return array
*/
static function parse_checksum_results( $checksums ) {
$filepath = ABSPATH;
$files = array();
// Parse the results.
foreach ( $checksums['checksums'] as $file => $checksum ) {
// Check the files.
if ( file_exists( $filepath . $file ) && md5_file( $filepath . $file ) !== $checksum ) {
$reason = esc_html__( 'Content changed', 'health-check' ) . ' ' . esc_html__( '(View Diff)', 'health-check' ) . '';
array_push( $files, array( $file, $reason ) );
} elseif ( ! file_exists( $filepath . $file ) ) {
$reason = esc_html__( 'File not found', 'health-check' );
array_push( $files, array( $file, $reason ) );
}
}
return $files;
}
/**
* Generates the response
*
* @uses wp_send_json_success()
* @uses wp_die()
* @uses ABSPATH
*
* @param null|array $files
*
* @return void
*/
static function create_the_response( $files ) {
$filepath = ABSPATH;
$output = '';
if ( empty( $files ) ) {
$output .= '';
$output .= esc_html__( 'All files passed the check. Everything seems to be ok!', 'health-check' );
$output .= '
';
$output .= esc_html__( 'It appears as if some files may have been modified.', 'health-check' );
$output .= '
' . esc_html__( 'One possible reason for this may be that your installation contains translated versions. An easy way to clear this is to reinstall WordPress. Don\'t worry. This will only affect WordPress\' own files, not your themes, plugins or uploaded media.', 'health-check' );
$output .= '
| ';
$output .= esc_html__( 'Status', 'health-check' );
$output .= ' | ';
$output .= esc_html__( 'File', 'health-check' );
$output .= ' | ';
$output .= esc_html__( 'Reason', 'health-check' );
$output .= ' |
|---|
| ';
$output .= esc_html__( 'Status', 'health-check' );
$output .= ' | ';
$output .= esc_html__( 'File', 'health-check' );
$output .= ' | ';
$output .= esc_html__( 'Reason', 'health-check' );
$output .= ' |
';
foreach ( $files as $tampered ) {
$output .= '';
$output .= ' | ';
$output .= '' . $filepath . $tampered[0] . ' | ';
$output .= '' . $tampered[1] . ' | ';
$output .= '
';
}
$output .= '';
$output .= '
';
}
$response = array(
'message' => $output,
);
wp_send_json_success( $response );
wp_die();
}
/**
* Generates Diff view
*
* @uses get_bloginfo()
* @uses wp_remote_get()
* @uses wp_remote_retrieve_body()
* @uses wp_send_json_success()
* @uses wp_die()
* @uses ABSPATH
* @uses FILE_USE_INCLUDE_PATH
* @uses wp_text_diff()
*
*
* @return void
*/
static function view_file_diff() {
check_ajax_referer( 'health-check-view-file-diff' );
if ( ! current_user_can( 'manage_options' ) ) {
wp_send_json_error();
}
$filepath = ABSPATH;
$file = $_POST['file'];
$wpversion = get_bloginfo( 'version' );
if ( 0 !== validate_file( $filepath . $file ) ) {
wp_send_json_error( array( 'message' => esc_html__( 'You do not have access to this file.' , 'health-check' ) ) );
}
$allowed_files = get_transient( 'health-check-checksums' );
if ( false === $allowed_files ) {
Health_Check_Files_Integrity::call_checksum_api();
$allowed_files = get_transient( 'health-check-checksums' );
}
if ( ! isset( $allowed_files['checksums'][ $file ] ) ) {
wp_send_json_error( array( 'message' => esc_html__( 'You do not have access to this file.' , 'health-check' ) ) );
}
$local_file_body = file_get_contents( $filepath . $file, FILE_USE_INCLUDE_PATH );
$remote_file = wp_remote_get( 'https://core.svn.wordpress.org/tags/' . $wpversion . '/' . $file );
$remote_file_body = wp_remote_retrieve_body( $remote_file );
$diff_args = array(
'show_split_view' => true,
);
$output = '| ';
$output .= esc_html__( 'Original', 'health-check' );
$output .= ' | ';
$output .= esc_html__( 'Modified', 'health-check' );
$output .= ' |
|---|
';
$output .= wp_text_diff( $remote_file_body, $local_file_body, $diff_args );
$response = array(
'message' => $output,
);
wp_send_json_success( $response );
wp_die();
}
/**
* Add the Files integrity checker to the tools tab.
*
* @param array $tabs
*
* @return array
*/
static function tools_tab( $tabs ) {
ob_start();
?>
checksums provided by the WordPress API to see if they are intact. If there are changes you will be able to make a Diff between the files hosted on WordPress.org and your installation to see what has been changed.', 'health-check' ); ?>
esc_html__( 'File Integrity', 'health-check' ),
'content' => $tab_content,
);
return $tabs;
}
}