128 lines
3.0 KiB
PHP
128 lines
3.0 KiB
PHP
<?php
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/**
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* Class for filesystem operations.
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*/
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class WPCF7_Filesystem {
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/**
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* The singleton instance.
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*
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* @var WPCF7_Filesystem
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*/
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private static $instance;
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/**
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* Filesystem object.
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*
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* @var WP_Filesystem_Base
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*/
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private $filesystem;
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/**
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* Retrieves the singleton instance.
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*/
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public static function get_instance() {
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if ( empty( self::$instance ) ) {
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self::$instance = new self();
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}
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return self::$instance;
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}
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/**
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* Constructor.
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*/
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private function __construct() {
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$this->connect();
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}
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/**
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* Connects to the filesystem.
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*
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* @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
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*/
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private function connect() {
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global $wp_filesystem;
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if ( $this->filesystem ) {
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return false;
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}
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require_once ABSPATH . 'wp-admin/includes/file.php';
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require_once ABSPATH . 'wp-admin/includes/class-wp-filesystem-base.php';
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require_once ABSPATH . 'wp-admin/includes/class-wp-filesystem-direct.php';
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ob_start();
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$credentials = request_filesystem_credentials( '' );
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ob_end_clean();
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if ( false === $credentials or ! WP_Filesystem( $credentials ) ) {
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wp_trigger_error(
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__FUNCTION__,
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__( 'Could not access filesystem.', 'contact-form-7' )
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);
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}
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if ( $wp_filesystem instanceof WP_Filesystem_Base ) {
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$this->filesystem = $wp_filesystem;
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} else {
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$this->filesystem = new WP_Filesystem_Direct( 1 );
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}
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if ( ! defined( 'FS_CHMOD_DIR' ) ) {
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define( 'FS_CHMOD_DIR', fileperms( ABSPATH ) & 0777 | 0755 );
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}
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if ( ! defined( 'FS_CHMOD_FILE' ) ) {
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define( 'FS_CHMOD_FILE', fileperms( ABSPATH . 'index.php' ) & 0777 | 0644 );
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}
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}
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/**
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* Changes filesystem permissions.
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*
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* @param string $file Path to the file.
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* @param int|false $mode Optional. The permissions as octal number.
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* @param bool $recursive Optional. If set to true,
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* changes file permissions recursively. Default false.
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* @return bool True on success, false on failure.
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*/
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public function chmod( $file, $mode = false, $recursive = false ) {
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return $this->filesystem->chmod( $file, $mode, $recursive );
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}
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/**
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* Deletes a file or directory.
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*
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* @param string $file Path to the file or directory.
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* @param bool $recursive Optional. If set to true, deletes
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* files and folders recursively. Default false.
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* @param string|false $type Type of resource.
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* 'f' for file, 'd' for directory. Default false.
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* @return bool True on success, false on failure.
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*/
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public function delete( $file, $recursive = false, $type = false ) {
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return $this->filesystem->delete( $file, $recursive, $type );
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}
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/**
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* Writes a string to a file.
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*
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* @param string $file Path to the file where to write the data.
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* @param string $contents The data to write.
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* @param int $mode The file permissions as octal number.
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* @return bool True on success, false on failure.
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*/
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public function put_contents( $file, $contents, $mode = false ) {
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return $this->filesystem->put_contents( $file, $contents, $mode );
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}
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}
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