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<?php /** * WordPress FTP Filesystem. * * @package WordPress * @subpackage Filesystem / /* * WordPress Filesystem Class for implementing FTP. * * @since 2.5.0 * * @see WP_Filesystem_Base / class WP_Filesystem_FTPext extends WP_Filesystem_Base { /* * @since 2.5.0 * @var resource / public $link; /* * Constructor. * * @since 2.5.0 * * @param array $opt / public function __construct( $opt = '' ) { $this->method = 'ftpext'; $this->errors = new WP_Error(); // Check if possible to use ftp functions. if ( ! extension_loaded( 'ftp' ) ) { $this->errors->add( 'no_ftp_ext', __( 'The ftp PHP extension is not available' ) ); return; } // This class uses the timeout on a per-connection basis, others use it on a per-action basis. if ( ! defined( 'FS_TIMEOUT' ) ) { define( 'FS_TIMEOUT', 4 MINUTE_IN_SECONDS ); } if ( empty( $opt['port'] ) ) { $this->options['port'] = 21; } else { $this->options['port'] = $opt['port']; } if ( empty( $opt['hostname'] ) ) { $this->errors->add( 'empty_hostname', __( 'FTP hostname is required' ) ); } else { $this->options['hostname'] = $opt['hostname']; } // Check if the options provided are OK. if ( empty( $opt['username'] ) ) { $this->errors->add( 'empty_username', __( 'FTP username is required' ) ); } else { $this->options['username'] = $opt['username']; } if ( empty( $opt['password'] ) ) { $this->errors->add( 'empty_password', __( 'FTP password is required' ) ); } else { $this->options['password'] = $opt['password']; } $this->options['ssl'] = false; if ( isset( $opt['connection_type'] ) && 'ftps' === $opt['connection_type'] ) { $this->options['ssl'] = true; } } /** * Connects filesystem. * * @since 2.5.0 * * @return bool True on success, false on failure. / public function connect() { if ( isset( $this->options['ssl'] ) && $this->options['ssl'] && function_exists( 'ftp_ssl_connect' ) ) { $this->link = @ftp_ssl_connect( $this->options['hostname'], $this->options['port'], FS_CONNECT_TIMEOUT ); } else { $this->link = @ftp_connect( $this->options['hostname'], $this->options['port'], FS_CONNECT_TIMEOUT ); } if ( ! $this->link ) { $this->errors->add( 'connect', sprintf( / translators: %s: hostname:port / __( 'Failed to connect to FTP Server %s' ), $this->options['hostname'] . ':' . $this->options['port'] ) ); return false; } if ( ! @ftp_login( $this->link, $this->options['username'], $this->options['password'] ) ) { $this->errors->add( 'auth', sprintf( / translators: %s: Username. / __( 'Username/Password incorrect for %s' ), $this->options['username'] ) ); return false; } // Set the connection to use Passive FTP. ftp_pasv( $this->link, true ); if ( @ftp_get_option( $this->link, FTP_TIMEOUT_SEC ) < FS_TIMEOUT ) { @ftp_set_option( $this->link, FTP_TIMEOUT_SEC, FS_TIMEOUT ); } return true; } /* * Reads entire file into a string. * * @since 2.5.0 * * @param string $file Name of the file to read. * @return string\|false Read data on success, false if no temporary file could be opened, * or if the file couldn't be retrieved. / public function get_contents( $file ) { $tempfile = wp_tempnam( $file ); $temphandle = fopen( $tempfile, 'w+' ); if ( ! $temphandle ) { unlink( $tempfile ); return false; } if ( ! ftp_fget( $this->link, $temphandle, $file, FTP_BINARY ) ) { fclose( $temphandle ); unlink( $tempfile ); return false; } fseek( $temphandle, 0 ); // Skip back to the start of the file being written to. $contents = ''; while ( ! feof( $temphandle ) ) { $contents .= fread( $temphandle, 8 KB_IN_BYTES ); } fclose( $temphandle ); unlink( $tempfile ); return $contents; } /** * Reads entire file into an array. * * @since 2.5.0 * * @param string $file Path to the file. * @return array\|false File contents in an array on success, false on failure. / public function get_contents_array( $file ) { return explode( "\n", $this->get_contents( $file ) ); } /* * Writes a string to a file. * * @since 2.5.0 * * @param string $file Remote path to the file where to write the data. * @param string $contents The data to write. * @param int\|false $mode Optional. The file permissions as octal number, usually 0644. * Default false. * @return bool True on success, false on failure. / public function put_contents( $file, $contents, $mode = false ) { $tempfile = wp_tempnam( $file ); $temphandle = fopen( $tempfile, 'wb+' ); if ( ! $temphandle ) { unlink( $tempfile ); return false; } mbstring_binary_safe_encoding(); $data_length = strlen( $contents ); $bytes_written = fwrite( $temphandle, $contents ); reset_mbstring_encoding(); if ( $data_length !== $bytes_written ) { fclose( $temphandle ); unlink( $tempfile ); return false; } fseek( $temphandle, 0 ); // Skip back to the start of the file being written to. $ret = ftp_fput( $this->link, $file, $temphandle, FTP_BINARY ); fclose( $temphandle ); unlink( $tempfile ); $this->chmod( $file, $mode ); return $ret; } /* * Gets the current working directory. * * @since 2.5.0 * * @return string\|false The current working directory on success, false on failure. / public function cwd() { $cwd = ftp_pwd( $this->link ); if ( $cwd ) { $cwd = trailingslashit( $cwd ); } return $cwd; } /* * Changes current directory. * * @since 2.5.0 * * @param string $dir The new current directory. * @return bool True on success, false on failure. / public function chdir( $dir ) { return @ftp_chdir( $this->link, $dir ); } /* * Changes filesystem permissions. * * @since 2.5.0 * * @param string $file Path to the file. * @param int\|false $mode Optional. The permissions as octal number, usually 0644 for files, * 0755 for directories. Default false. * @param bool $recursive Optional. If set to true, changes file permissions recursively. * Default false. * @return bool True on success, false on failure. / public function chmod( $file, $mode = false, $recursive = false ) { if ( ! $mode ) { if ( $this->is_file( $file ) ) { $mode = FS_CHMOD_FILE; } elseif ( $this->is_dir( $file ) ) { $mode = FS_CHMOD_DIR; } else { return false; } } // chmod any sub-objects if recursive. if ( $recursive && $this->is_dir( $file ) ) { $filelist = $this->dirlist( $file ); foreach ( (array) $filelist as $filename => $filemeta ) { $this->chmod( $file . '/' . $filename, $mode, $recursive ); } } // chmod the file or directory. if ( ! function_exists( 'ftp_chmod' ) ) { return (bool) ftp_site( $this->link, sprintf( 'CHMOD %o %s', $mode, $file ) ); } return (bool) ftp_chmod( $this->link, $mode, $file ); } /* * Gets the file owner. * * @since 2.5.0 * * @param string $file Path to the file. * @return string\|false Username of the owner on success, false on failure. / public function owner( $file ) { $dir = $this->dirlist( $file ); return $dir[ $file ]['owner']; } /* * Gets the permissions of the specified file or filepath in their octal format. * * @since 2.5.0 * * @param string $file Path to the file. * @return string Mode of the file (the last 3 digits). / public function getchmod( $file ) { $dir = $this->dirlist( $file ); return $dir[ $file ]['permsn']; } /* * Gets the file's group. * * @since 2.5.0 * * @param string $file Path to the file. * @return string\|false The group on success, false on failure. / public function group( $file ) { $dir = $this->dirlist( $file ); return $dir[ $file ]['group']; } /* * Copies a file. * * @since 2.5.0 * * @param string $source Path to the source file. * @param string $destination Path to the destination file. * @param bool $overwrite Optional. Whether to overwrite the destination file if it exists. * Default false. * @param int\|false $mode Optional. The permissions as octal number, usually 0644 for files, * 0755 for dirs. Default false. * @return bool True on success, false on failure. / public function copy( $source, $destination, $overwrite = false, $mode = false ) { if ( ! $overwrite && $this->exists( $destination ) ) { return false; } $content = $this->get_contents( $source ); if ( false === $content ) { return false; } return $this->put_contents( $destination, $content, $mode ); } /* * Moves a file or directory. * * After moving files or directories, OPcache will need to be invalidated. * * If moving a directory fails, `copy_dir()` can be used for a recursive copy. * * Use `move_dir()` for moving directories with OPcache invalidation and a * fallback to `copy_dir()`. * * @since 2.5.0 * * @param string $source Path to the source file or directory. * @param string $destination Path to the destination file or directory. * @param bool $overwrite Optional. Whether to overwrite the destination if it exists. * Default false. * @return bool True on success, false on failure. / public function move( $source, $destination, $overwrite = false ) { return ftp_rename( $this->link, $source, $destination ); } /* * Deletes a file or directory. * * @since 2.5.0 * * @param string $file Path to the file or directory. * @param bool $recursive Optional. If set to true, deletes files and folders recursively. * Default false. * @param string\|false $type Type of resource. 'f' for file, 'd' for directory. * Default false. * @return bool True on success, false on failure. / public function delete( $file, $recursive = false, $type = false ) { if ( empty( $file ) ) { return false; } if ( 'f' === $type \|\| $this->is_file( $file ) ) { return ftp_delete( $this->link, $file ); } if ( ! $recursive ) { return ftp_rmdir( $this->link, $file ); } $filelist = $this->dirlist( trailingslashit( $file ) ); if ( ! empty( $filelist ) ) { foreach ( $filelist as $delete_file ) { $this->delete( trailingslashit( $file ) . $delete_file['name'], $recursive, $delete_file['type'] ); } } return ftp_rmdir( $this->link, $file ); } /* * Checks if a file or directory exists. * * @since 2.5.0 * @since 6.3.0 Returns false for an empty path. * * @param string $path Path to file or directory. * @return bool Whether $path exists or not. / public function exists( $path ) { / * Check for empty path. If ftp_nlist() receives an empty path, * it checks the current working directory and may return true. * * See https://core.trac.wordpress.org/ticket/33058. / if ( '' === $path ) { return false; } $list = ftp_nlist( $this->link, $path ); if ( empty( $list ) && $this->is_dir( $path ) ) { return true; // File is an empty directory. } return ! empty( $list ); // Empty list = no file, so invert. } /* * Checks if resource is a file. * * @since 2.5.0 * * @param string $file File path. * @return bool Whether $file is a file. / public function is_file( $file ) { return $this->exists( $file ) && ! $this->is_dir( $file ); } /* * Checks if resource is a directory. * * @since 2.5.0 * * @param string $path Directory path. * @return bool Whether $path is a directory. / public function is_dir( $path ) { $cwd = $this->cwd(); $result = @ftp_chdir( $this->link, trailingslashit( $path ) ); if ( $result && $path === $this->cwd() \|\| $this->cwd() !== $cwd ) { @ftp_chdir( $this->link, $cwd ); return true; } return false; } /* * Checks if a file is readable. * * @since 2.5.0 * * @param string $file Path to file. * @return bool Whether $file is readable. / public function is_readable( $file ) { return true; } /* * Checks if a file or directory is writable. * * @since 2.5.0 * * @param string $path Path to file or directory. * @return bool Whether $path is writable. / public function is_writable( $path ) { return true; } /* * Gets the file's last access time. * * @since 2.5.0 * * @param string $file Path to file. * @return int\|false Unix timestamp representing last access time, false on failure. / public function atime( $file ) { return false; } /* * Gets the file modification time. * * @since 2.5.0 * * @param string $file Path to file. * @return int\|false Unix timestamp representing modification time, false on failure. / public function mtime( $file ) { return ftp_mdtm( $this->link, $file ); } /* * Gets the file size (in bytes). * * @since 2.5.0 * * @param string $file Path to file. * @return int\|false Size of the file in bytes on success, false on failure. / public function size( $file ) { $size = ftp_size( $this->link, $file ); return ( $size > -1 ) ? $size : false; } /* * Sets the access and modification times of a file. * * Note: If $file doesn't exist, it will be created. * * @since 2.5.0 * * @param string $file Path to file. * @param int $time Optional. Modified time to set for file. * Default 0. * @param int $atime Optional. Access time to set for file. * Default 0. * @return bool True on success, false on failure. / public function touch( $file, $time = 0, $atime = 0 ) { return false; } /* * Creates a directory. * * @since 2.5.0 * * @param string $path Path for new directory. * @param int\|false $chmod Optional. The permissions as octal number (or false to skip chmod). * Default false. * @param string\|int\|false $chown Optional. A user name or number (or false to skip chown). * Default false. * @param string\|int\|false $chgrp Optional. A group name or number (or false to skip chgrp). * Default false. * @return bool True on success, false on failure. / public function mkdir( $path, $chmod = false, $chown = false, $chgrp = false ) { $path = untrailingslashit( $path ); if ( empty( $path ) ) { return false; } if ( ! ftp_mkdir( $this->link, $path ) ) { return false; } $this->chmod( $path, $chmod ); return true; } /* * Deletes a directory. * * @since 2.5.0 * * @param string $path Path to directory. * @param bool $recursive Optional. Whether to recursively remove files/directories. * Default false. * @return bool True on success, false on failure. / public function rmdir( $path, $recursive = false ) { return $this->delete( $path, $recursive ); } /* * @param string $line * @return array { * Array of file information. * * @type string $name Name of the file or directory. * @type string $perms nix representation of permissions. @type string $permsn Octal representation of permissions. * @type string\|false $number File number as a string, or false if not available. * @type string\|false $owner Owner name or ID, or false if not available. * @type string\|false $group File permissions group, or false if not available. * @type string\|false $size Size of file in bytes as a string, or false if not available. * @type string\|false $lastmodunix Last modified unix timestamp as a string, or false if not available. * @type string\|false $lastmod Last modified month (3 letters) and day (without leading 0), or * false if not available. * @type string\|false $time Last modified time, or false if not available. * @type string $type Type of resource. 'f' for file, 'd' for directory, 'l' for link. * @type array\|false $files If a directory and `$recursive` is true, contains another array of files. * False if unable to list directory contents. * } / public function parselisting( $line ) { static $is_windows = null; if ( is_null( $is_windows ) ) { $is_windows = stripos( ftp_systype( $this->link ), 'win' ) !== false; } if ( $is_windows && preg_match( '/([0-9]{2})-([0-9]{2})-([0-9]{2}) +([0-9]{2}):([0-9]{2})(AM\|PM) +([0-9]+\|<DIR>) +(.+)/', $line, $lucifer ) ) { $b = array(); if ( $lucifer[3] < 70 ) { $lucifer[3] += 2000; } else { $lucifer[3] += 1900; // 4-digit year fix. } $b['isdir'] = ( '<DIR>' === $lucifer[7] ); if ( $b['isdir'] ) { $b['type'] = 'd'; } else { $b['type'] = 'f'; } $b['size'] = $lucifer[7]; $b['month'] = $lucifer[1]; $b['day'] = $lucifer[2]; $b['year'] = $lucifer[3]; $b['hour'] = $lucifer[4]; $b['minute'] = $lucifer[5]; $b['time'] = mktime( $lucifer[4] + ( strcasecmp( $lucifer[6], 'PM' ) === 0 ? 12 : 0 ), $lucifer[5], 0, $lucifer[1], $lucifer[2], $lucifer[3] ); $b['am/pm'] = $lucifer[6]; $b['name'] = $lucifer[8]; } elseif ( ! $is_windows ) { $lucifer = preg_split( '/[ ]/', $line, 9, PREG_SPLIT_NO_EMPTY ); if ( $lucifer ) { // echo $line."\n"; $lcount = count( $lucifer ); if ( $lcount < 8 ) { return ''; } $b = array(); $b['isdir'] = 'd' === $lucifer[0][0]; $b['islink'] = 'l' === $lucifer[0][0]; if ( $b['isdir'] ) { $b['type'] = 'd'; } elseif ( $b['islink'] ) { $b['type'] = 'l'; } else { $b['type'] = 'f'; } $b['perms'] = $lucifer[0]; $b['permsn'] = $this->getnumchmodfromh( $b['perms'] ); $b['number'] = $lucifer[1]; $b['owner'] = $lucifer[2]; $b['group'] = $lucifer[3]; $b['size'] = $lucifer[4]; if ( 8 === $lcount ) { sscanf( $lucifer[5], '%d-%d-%d', $b['year'], $b['month'], $b['day'] ); sscanf( $lucifer[6], '%d:%d', $b['hour'], $b['minute'] ); $b['time'] = mktime( $b['hour'], $b['minute'], 0, $b['month'], $b['day'], $b['year'] ); $b['name'] = $lucifer[7]; } else { $b['month'] = $lucifer[5]; $b['day'] = $lucifer[6]; if ( preg_match( '/([0-9]{2}):([0-9]{2})/', $lucifer[7], $l2 ) ) { $b['year'] = gmdate( 'Y' ); $b['hour'] = $l2[1]; $b['minute'] = $l2[2]; } else { $b['year'] = $lucifer[7]; $b['hour'] = 0; $b['minute'] = 0; } $b['time'] = strtotime( sprintf( '%d %s %d %02d:%02d', $b['day'], $b['month'], $b['year'], $b['hour'], $b['minute'] ) ); $b['name'] = $lucifer[8]; } } } // Replace symlinks formatted as "source -> target" with just the source name. if ( isset( $b['islink'] ) && $b['islink'] ) { $b['name'] = preg_replace( '/(\s->\s.)$/', '', $b['name'] ); } return $b; } /** * Gets details for files in a directory or a specific file. * * @since 2.5.0 * * @param string $path Path to directory or file. * @param bool $include_hidden Optional. Whether to include details of hidden ("." prefixed) files. * Default true. * @param bool $recursive Optional. Whether to recursively include file details in nested directories. * Default false. * @return array\|false { * Array of arrays containing file information. False if unable to list directory contents. * * @type array ...$0 { * Array of file information. Note that some elements may not be available on all filesystems. * * @type string $name Name of the file or directory. * @type string $perms nix representation of permissions. @type string $permsn Octal representation of permissions. * @type int\|string\|false $number File number. May be a numeric string. False if not available. * @type string\|false $owner Owner name or ID, or false if not available. * @type string\|false $group File permissions group, or false if not available. * @type int\|string\|false $size Size of file in bytes. May be a numeric string. * False if not available. * @type int\|string\|false $lastmodunix Last modified unix timestamp. May be a numeric string. * False if not available. * @type string\|false $lastmod Last modified month (3 letters) and day (without leading 0), or * false if not available. * @type string\|false $time Last modified time, or false if not available. * @type string $type Type of resource. 'f' for file, 'd' for directory, 'l' for link. * @type array\|false $files If a directory and `$recursive` is true, contains another array of * files. False if unable to list directory contents. * } * } / public function dirlist( $path = '.', $include_hidden = true, $recursive = false ) { if ( $this->is_file( $path ) ) { $limit_file = basename( $path ); $path = dirname( $path ) . '/'; } else { $limit_file = false; } $pwd = ftp_pwd( $this->link ); if ( ! @ftp_chdir( $this->link, $path ) ) { // Can't change to folder = folder doesn't exist. return false; } $list = ftp_rawlist( $this->link, '-a', false ); @ftp_chdir( $this->link, $pwd ); if ( empty( $list ) ) { // Empty array = non-existent folder (real folder will show . at least). return false; } $dirlist = array(); foreach ( $list as $k => $v ) { $entry = $this->parselisting( $v ); if ( empty( $entry ) ) { continue; } if ( '.' === $entry['name'] \|\| '..' === $entry['name'] ) { continue; } if ( ! $include_hidden && '.' === $entry['name'][0] ) { continue; } if ( $limit_file && $entry['name'] !== $limit_file ) { continue; } $dirlist[ $entry['name'] ] = $entry; } $path = trailingslashit( $path ); $ret = array(); foreach ( (array) $dirlist as $struc ) { if ( 'd' === $struc['type'] ) { if ( $recursive ) { $struc['files'] = $this->dirlist( $path . $struc['name'], $include_hidden, $recursive ); } else { $struc['files'] = array(); } } $ret[ $struc['name'] ] = $struc; } return $ret; } /* * Destructor. * * @since 2.5.0 */ public function __destruct() { if ( $this->link ) { ftp_close( $this->link ); } } }