663 lines
16 KiB
PHP
663 lines
16 KiB
PHP
<?php
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/**
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* WordPress FTP Sockets Filesystem.
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*
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* @package WordPress
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* @subpackage Filesystem
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*/
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/**
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* WordPress Filesystem Class for implementing FTP Sockets.
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*
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* @since 2.5.0
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*
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* @see WP_Filesystem_Base
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*/
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class WP_Filesystem_ftpsockets extends WP_Filesystem_Base {
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/**
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* @since 2.5.0
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* @var ftp
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*/
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public $ftp;
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/**
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* Constructor.
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*
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* @since 2.5.0
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*
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* @param array $opt
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*/
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public function __construct( $opt = '' ) {
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$this->method = 'ftpsockets';
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$this->errors = new WP_Error();
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// Check if possible to use ftp functions.
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if ( ! include_once ABSPATH . 'wp-admin/includes/class-ftp.php' ) {
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return;
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}
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$this->ftp = new ftp();
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if ( empty( $opt['port'] ) ) {
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$this->options['port'] = 21;
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} else {
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$this->options['port'] = (int) $opt['port'];
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}
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if ( empty( $opt['hostname'] ) ) {
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$this->errors->add( 'empty_hostname', __( 'FTP hostname is required' ) );
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} else {
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$this->options['hostname'] = $opt['hostname'];
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}
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// Check if the options provided are OK.
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if ( empty( $opt['username'] ) ) {
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$this->errors->add( 'empty_username', __( 'FTP username is required' ) );
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} else {
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$this->options['username'] = $opt['username'];
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}
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if ( empty( $opt['password'] ) ) {
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$this->errors->add( 'empty_password', __( 'FTP password is required' ) );
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} else {
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$this->options['password'] = $opt['password'];
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}
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}
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/**
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* Connects filesystem.
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*
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* @since 2.5.0
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*
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* @return bool True on success, false on failure.
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*/
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public function connect() {
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if ( ! $this->ftp ) {
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return false;
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}
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$this->ftp->setTimeout( FS_CONNECT_TIMEOUT );
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if ( ! $this->ftp->SetServer( $this->options['hostname'], $this->options['port'] ) ) {
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$this->errors->add(
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'connect',
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sprintf(
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/* translators: %s: hostname:port */
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__( 'Failed to connect to FTP Server %s' ),
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$this->options['hostname'] . ':' . $this->options['port']
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)
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);
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return false;
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}
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if ( ! $this->ftp->connect() ) {
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$this->errors->add(
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'connect',
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sprintf(
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/* translators: %s: hostname:port */
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__( 'Failed to connect to FTP Server %s' ),
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$this->options['hostname'] . ':' . $this->options['port']
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)
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);
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return false;
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}
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if ( ! $this->ftp->login( $this->options['username'], $this->options['password'] ) ) {
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$this->errors->add(
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'auth',
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sprintf(
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/* translators: %s: Username. */
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__( 'Username/Password incorrect for %s' ),
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$this->options['username']
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)
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);
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return false;
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}
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$this->ftp->SetType( FTP_BINARY );
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$this->ftp->Passive( true );
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$this->ftp->setTimeout( FS_TIMEOUT );
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return true;
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}
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/**
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* Reads entire file into a string.
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*
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* @since 2.5.0
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*
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* @param string $file Name of the file to read.
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* @return string|false Read data on success, false if no temporary file could be opened,
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* or if the file couldn't be retrieved.
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*/
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public function get_contents( $file ) {
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if ( ! $this->exists( $file ) ) {
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return false;
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}
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$temp = wp_tempnam( $file );
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$temphandle = fopen( $temp, 'w+' );
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if ( ! $temphandle ) {
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unlink( $temp );
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return false;
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}
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mbstring_binary_safe_encoding();
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if ( ! $this->ftp->fget( $temphandle, $file ) ) {
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fclose( $temphandle );
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unlink( $temp );
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reset_mbstring_encoding();
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return ''; // Blank document. File does exist, it's just blank.
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}
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reset_mbstring_encoding();
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fseek( $temphandle, 0 ); // Skip back to the start of the file being written to.
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$contents = '';
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while ( ! feof( $temphandle ) ) {
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$contents .= fread( $temphandle, 8 * KB_IN_BYTES );
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}
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fclose( $temphandle );
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unlink( $temp );
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return $contents;
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}
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/**
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* Reads entire file into an array.
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*
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* @since 2.5.0
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*
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* @param string $file Path to the file.
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* @return array|false File contents in an array on success, false on failure.
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*/
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public function get_contents_array( $file ) {
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return explode( "\n", $this->get_contents( $file ) );
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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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* @since 2.5.0
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*
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* @param string $file Remote 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|false $mode Optional. The file permissions as octal number, usually 0644.
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* Default false.
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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, $mode = false ) {
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$temp = wp_tempnam( $file );
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$temphandle = @fopen( $temp, 'w+' );
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if ( ! $temphandle ) {
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unlink( $temp );
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return false;
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}
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// The FTP class uses string functions internally during file download/upload.
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mbstring_binary_safe_encoding();
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$bytes_written = fwrite( $temphandle, $contents );
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if ( false === $bytes_written || $bytes_written != strlen( $contents ) ) {
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fclose( $temphandle );
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unlink( $temp );
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reset_mbstring_encoding();
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return false;
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}
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fseek( $temphandle, 0 ); // Skip back to the start of the file being written to.
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$ret = $this->ftp->fput( $file, $temphandle );
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reset_mbstring_encoding();
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fclose( $temphandle );
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unlink( $temp );
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$this->chmod( $file, $mode );
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return $ret;
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}
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/**
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* Gets the current working directory.
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*
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* @since 2.5.0
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*
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* @return string|false The current working directory on success, false on failure.
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*/
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public function cwd() {
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$cwd = $this->ftp->pwd();
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if ( $cwd ) {
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$cwd = trailingslashit( $cwd );
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}
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return $cwd;
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}
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/**
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* Changes current directory.
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*
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* @since 2.5.0
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*
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* @param string $dir The new current directory.
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* @return bool True on success, false on failure.
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*/
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public function chdir( $dir ) {
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return $this->ftp->chdir( $dir );
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}
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/**
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* Changes filesystem permissions.
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*
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* @since 2.5.0
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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, usually 0644 for files,
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* 0755 for directories. Default false.
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* @param bool $recursive Optional. If set to true, changes file permissions recursively.
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* 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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if ( ! $mode ) {
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if ( $this->is_file( $file ) ) {
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$mode = FS_CHMOD_FILE;
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} elseif ( $this->is_dir( $file ) ) {
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$mode = FS_CHMOD_DIR;
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} else {
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return false;
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}
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}
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// chmod any sub-objects if recursive.
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if ( $recursive && $this->is_dir( $file ) ) {
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$filelist = $this->dirlist( $file );
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foreach ( (array) $filelist as $filename => $filemeta ) {
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$this->chmod( $file . '/' . $filename, $mode, $recursive );
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}
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}
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// chmod the file or directory.
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return $this->ftp->chmod( $file, $mode );
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}
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/**
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* Gets the file owner.
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*
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* @since 2.5.0
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*
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* @param string $file Path to the file.
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* @return string|false Username of the owner on success, false on failure.
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*/
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public function owner( $file ) {
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$dir = $this->dirlist( $file );
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return $dir[ $file ]['owner'];
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}
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/**
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* Gets the permissions of the specified file or filepath in their octal format.
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*
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* @since 2.5.0
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*
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* @param string $file Path to the file.
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* @return string Mode of the file (the last 3 digits).
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*/
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public function getchmod( $file ) {
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$dir = $this->dirlist( $file );
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return $dir[ $file ]['permsn'];
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}
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/**
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* Gets the file's group.
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*
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* @since 2.5.0
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*
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* @param string $file Path to the file.
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* @return string|false The group on success, false on failure.
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*/
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public function group( $file ) {
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$dir = $this->dirlist( $file );
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return $dir[ $file ]['group'];
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}
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/**
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* Copies a file.
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*
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* @since 2.5.0
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*
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* @param string $source Path to the source file.
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* @param string $destination Path to the destination file.
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* @param bool $overwrite Optional. Whether to overwrite the destination file if it exists.
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* Default false.
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* @param int|false $mode Optional. The permissions as octal number, usually 0644 for files,
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* 0755 for dirs. Default false.
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* @return bool True on success, false on failure.
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*/
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public function copy( $source, $destination, $overwrite = false, $mode = false ) {
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if ( ! $overwrite && $this->exists( $destination ) ) {
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return false;
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}
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$content = $this->get_contents( $source );
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if ( false === $content ) {
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return false;
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}
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return $this->put_contents( $destination, $content, $mode );
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}
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/**
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* Moves a file.
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*
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* @since 2.5.0
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*
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* @param string $source Path to the source file.
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* @param string $destination Path to the destination file.
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* @param bool $overwrite Optional. Whether to overwrite the destination file if it exists.
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* Default false.
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* @return bool True on success, false on failure.
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*/
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public function move( $source, $destination, $overwrite = false ) {
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return $this->ftp->rename( $source, $destination );
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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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* @since 2.5.0
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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 files and folders recursively.
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* Default false.
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* @param string|false $type Type of resource. 'f' for file, 'd' for directory.
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* 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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if ( empty( $file ) ) {
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return false;
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}
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if ( 'f' == $type || $this->is_file( $file ) ) {
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return $this->ftp->delete( $file );
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}
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if ( ! $recursive ) {
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return $this->ftp->rmdir( $file );
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}
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return $this->ftp->mdel( $file );
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}
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/**
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* Checks if a file or directory exists.
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*
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* @since 2.5.0
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*
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* @param string $file Path to file or directory.
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* @return bool Whether $file exists or not.
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*/
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public function exists( $file ) {
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$list = $this->ftp->nlist( $file );
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if ( empty( $list ) && $this->is_dir( $file ) ) {
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return true; // File is an empty directory.
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}
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return ! empty( $list ); // Empty list = no file, so invert.
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// Return $this->ftp->is_exists($file); has issues with ABOR+426 responses on the ncFTPd server.
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}
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/**
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* Checks if resource is a file.
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*
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* @since 2.5.0
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*
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* @param string $file File path.
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* @return bool Whether $file is a file.
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*/
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public function is_file( $file ) {
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if ( $this->is_dir( $file ) ) {
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return false;
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}
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if ( $this->exists( $file ) ) {
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return true;
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}
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return false;
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}
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/**
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* Checks if resource is a directory.
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*
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* @since 2.5.0
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*
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* @param string $path Directory path.
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* @return bool Whether $path is a directory.
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*/
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public function is_dir( $path ) {
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$cwd = $this->cwd();
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if ( $this->chdir( $path ) ) {
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$this->chdir( $cwd );
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return true;
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}
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return false;
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}
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/**
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* Checks if a file is readable.
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*
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* @since 2.5.0
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*
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* @param string $file Path to file.
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* @return bool Whether $file is readable.
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*/
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public function is_readable( $file ) {
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return true;
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}
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/**
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* Checks if a file or directory is writable.
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*
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* @since 2.5.0
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*
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* @param string $file Path to file or directory.
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* @return bool Whether $file is writable.
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*/
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public function is_writable( $file ) {
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return true;
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}
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/**
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* Gets the file's last access time.
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*
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* @since 2.5.0
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*
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* @param string $file Path to file.
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* @return int|false Unix timestamp representing last access time, false on failure.
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*/
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public function atime( $file ) {
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return false;
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}
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/**
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* Gets the file modification time.
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*
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* @since 2.5.0
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*
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* @param string $file Path to file.
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* @return int|false Unix timestamp representing modification time, false on failure.
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*/
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public function mtime( $file ) {
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return $this->ftp->mdtm( $file );
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}
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/**
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* Gets the file size (in bytes).
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*
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* @since 2.5.0
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*
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* @param string $file Path to file.
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* @return int|false Size of the file in bytes on success, false on failure.
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*/
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public function size( $file ) {
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return $this->ftp->filesize( $file );
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}
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/**
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* Sets the access and modification times of a file.
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*
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* Note: If $file doesn't exist, it will be created.
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*
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* @since 2.5.0
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*
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* @param string $file Path to file.
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* @param int $time Optional. Modified time to set for file.
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* Default 0.
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* @param int $atime Optional. Access time to set for file.
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* Default 0.
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* @return bool True on success, false on failure.
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*/
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public function touch( $file, $time = 0, $atime = 0 ) {
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return false;
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}
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/**
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* Creates a directory.
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*
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* @since 2.5.0
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*
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* @param string $path Path for new directory.
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* @param int|false $chmod Optional. The permissions as octal number (or false to skip chmod).
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* Default false.
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* @param string|int $chown Optional. A user name or number (or false to skip chown).
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* Default false.
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* @param string|int $chgrp Optional. A group name or number (or false to skip chgrp).
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* Default false.
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* @return bool True on success, false on failure.
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*/
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public function mkdir( $path, $chmod = false, $chown = false, $chgrp = false ) {
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$path = untrailingslashit( $path );
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if ( empty( $path ) ) {
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return false;
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}
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if ( ! $this->ftp->mkdir( $path ) ) {
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return false;
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}
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if ( ! $chmod ) {
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$chmod = FS_CHMOD_DIR;
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}
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$this->chmod( $path, $chmod );
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return true;
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}
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/**
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* Deletes a directory.
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*
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* @since 2.5.0
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*
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* @param string $path Path to directory.
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* @param bool $recursive Optional. Whether to recursively remove files/directories.
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* Default false.
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* @return bool True on success, false on failure.
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*/
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public function rmdir( $path, $recursive = false ) {
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return $this->delete( $path, $recursive );
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}
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/**
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* Gets details for files in a directory or a specific file.
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*
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* @since 2.5.0
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*
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* @param string $path Path to directory or file.
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* @param bool $include_hidden Optional. Whether to include details of hidden ("." prefixed) files.
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* Default true.
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* @param bool $recursive Optional. Whether to recursively include file details in nested directories.
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* Default false.
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* @return array|false {
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* Array of files. False if unable to list directory contents.
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*
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* @type string $name Name of the file or directory.
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* @type string $perms *nix representation of permissions.
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* @type int $permsn Octal representation of permissions.
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* @type string $owner Owner name or ID.
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* @type int $size Size of file in bytes.
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* @type int $lastmodunix Last modified unix timestamp.
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* @type mixed $lastmod Last modified month (3 letter) and day (without leading 0).
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* @type int $time Last modified time.
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* @type string $type Type of resource. 'f' for file, 'd' for directory.
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* @type mixed $files If a directory and $recursive is true, contains another array of files.
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* }
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*/
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public function dirlist( $path = '.', $include_hidden = true, $recursive = false ) {
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if ( $this->is_file( $path ) ) {
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$limit_file = basename( $path );
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$path = dirname( $path ) . '/';
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} else {
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$limit_file = false;
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}
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mbstring_binary_safe_encoding();
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$list = $this->ftp->dirlist( $path );
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if ( empty( $list ) && ! $this->exists( $path ) ) {
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reset_mbstring_encoding();
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return false;
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}
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$ret = array();
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foreach ( $list as $struc ) {
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if ( '.' == $struc['name'] || '..' == $struc['name'] ) {
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continue;
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}
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if ( ! $include_hidden && '.' == $struc['name'][0] ) {
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continue;
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}
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if ( $limit_file && $struc['name'] != $limit_file ) {
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continue;
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}
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if ( 'd' == $struc['type'] ) {
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if ( $recursive ) {
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$struc['files'] = $this->dirlist( $path . '/' . $struc['name'], $include_hidden, $recursive );
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} else {
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$struc['files'] = array();
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}
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}
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// Replace symlinks formatted as "source -> target" with just the source name.
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if ( $struc['islink'] ) {
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$struc['name'] = preg_replace( '/(\s*->\s*.*)$/', '', $struc['name'] );
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}
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// Add the octal representation of the file permissions.
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$struc['permsn'] = $this->getnumchmodfromh( $struc['perms'] );
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$ret[ $struc['name'] ] = $struc;
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}
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reset_mbstring_encoding();
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return $ret;
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}
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/**
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* Destructor.
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*
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* @since 2.5.0
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*/
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public function __destruct() {
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$this->ftp->quit();
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}
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}
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