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':' . $this->options['port'] ) ); return false; } if ( ! $this->keys ) { if ( ! @ssh2_auth_password( $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; } } else { if ( ! @ssh2_auth_pubkey_file( $this->link, $this->options['username'], $this->options['public_key'], $this->options['private_key'], $this->options['password'] ) ) { $this->errors->add( 'auth', sprintf( /* translators: %s: Username. */ __( 'Public and Private keys incorrect for %s' ), $this->options['username'] ) ); return false; } } $this->sftp_link = ssh2_sftp( $this->link ); if ( ! $this->sftp_link ) { $this->errors->add( 'connect', sprintf( /* translators: %s: hostname:port */ __( 'Failed to initialize a SFTP subsystem session with the SSH2 Server %s' ), $this->options['hostname'] . ':' . $this->options['port'] ) ); return false; } return true; } /** * Gets the ssh2.sftp PHP stream wrapper path to open for the given file. * * This method also works around a PHP bug where the root directory (/) cannot * be opened by PHP functions, causing a false failure. In order to work around * this, the path is converted to /./ which is semantically the same as / * See https://bugs.php.net/bug.php?id=64169 for more details. * * @since 4.4.0 * * @param string $path The File/Directory path on the remote server to return * @return string The ssh2.sftp:// wrapped path to use. */ public function sftp_path( $path ) { if ( '/' === $path ) { $path = '/./'; } return 'ssh2.sftp://' . $this->sftp_link . '/' . ltrim( $path, '/' ); } /** * @since 2.7.0 * * @param string $command * @param bool $returnbool * @return bool|string True on success, false on failure. String if the command was executed, `$returnbool` * is false (default), and data from the resulting stream was retrieved. */ public function run_command( $command, $returnbool = false ) { if ( ! $this->link ) { return false; } $stream = ssh2_exec( $this->link, $command ); if ( ! $stream ) { $this->errors->add( 'command', sprintf( /* translators: %s: Command. */ __( 'Unable to perform command: %s' ), $command ) ); } else { stream_set_blocking( $stream, true ); stream_set_timeout( $stream, FS_TIMEOUT ); $data = stream_get_contents( $stream ); fclose( $stream ); if ( $returnbool ) { return ( false === $data ) ? false : '' !== trim( $data ); } else { return $data; } } return false; } /** * Reads entire file into a string. * * @since 2.7.0 * * @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 ) { return file_get_contents( $this->sftp_path( $file ) ); } /** * Reads entire file into an array. * * @since 2.7.0 * * @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 file( $this->sftp_path( $file ) ); } /** * Writes a string to a file. * * @since 2.7.0 * * @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 ) { $ret = file_put_contents( $this->sftp_path( $file ), $contents ); if ( strlen( $contents ) !== $ret ) { return false; } $this->chmod( $file, $mode ); return true; } /** * Gets the current working directory. * * @since 2.7.0 * * @return string|false The current working directory on success, false on failure. */ public function cwd() { $cwd = ssh2_sftp_realpath( $this->sftp_link, '.' ); if ( $cwd ) { $cwd = trailingslashit( trim( $cwd ) ); } return $cwd; } /** * Changes current directory. * * @since 2.7.0 * * @param string $dir The new current directory. * @return bool True on success, false on failure. */ public function chdir( $dir ) { return $this->run_command( 'cd ' . $dir, true ); } /** * Changes the file group. * * @since 2.7.0 * * @param string $file Path to the file. * @param string|int $group A group name or number. * @param bool $recursive Optional. If set to true, changes file group recursively. * Default false. * @return bool True on success, false on failure. */ public function chgrp( $file, $group, $recursive = false ) { if ( ! $this->exists( $file ) ) { return false; } if ( ! $recursive || ! $this->is_dir( $file ) ) { return $this->run_command( sprintf( 'chgrp %s %s', escapeshellarg( $group ), escapeshellarg( $file ) ), true ); } return $this->run_command( sprintf( 'chgrp -R %s %s', escapeshellarg( $group ), escapeshellarg( $file ) ), true ); } /** * Changes filesystem permissions. * * @since 2.7.0 * * @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 ( ! $this->exists( $file ) ) { return false; } if ( ! $mode ) { if ( $this->is_file( $file ) ) { $mode = FS_CHMOD_FILE; } elseif ( $this->is_dir( $file ) ) { $mode = FS_CHMOD_DIR; } else { return false; } } if ( ! $recursive || ! $this->is_dir( $file ) ) { return $this->run_command( sprintf( 'chmod %o %s', $mode, escapeshellarg( $file ) ), true ); } return $this->run_command( sprintf( 'chmod -R %o %s', $mode, escapeshellarg( $file ) ), true ); } /** * Changes the owner of a file or directory. * * @since 2.7.0 * * @param string $file Path to the file or directory. * @param string|int $owner A user name or number. * @param bool $recursive Optional. If set to true, changes file owner recursively. * Default false. * @return bool True on success, false on failure. */ public function chown( $file, $owner, $recursive = false ) { if ( ! $this->exists( $file ) ) { return false; } if ( ! $recursive || ! $this->is_dir( $file ) ) { return $this->run_command( sprintf( 'chown %s %s', escapeshellarg( $owner ), escapeshellarg( $file ) ), true ); } return $this->run_command( sprintf( 'chown -R %s %s', escapeshellarg( $owner ), escapeshellarg( $file ) ), true ); } /** * Gets the file owner. * * @since 2.7.0 * * @param string $file Path to the file. * @return string|false Username of the owner on success, false on failure. */ public function owner( $file ) { $owneruid = @fileowner( $this->sftp_path( $file ) ); if ( ! $owneruid ) { return false; } if ( ! function_exists( 'posix_getpwuid' ) ) { return $owneruid; } $ownerarray = posix_getpwuid( $owneruid ); if ( ! $ownerarray ) { return false; } return $ownerarray['name']; } /** * Gets the permissions of the specified file or filepath in their octal format. * * @since 2.7.0 * * @param string $file Path to the file. * @return string Mode of the file (the last 3 digits). */ public function getchmod( $file ) { return substr( decoct( @fileperms( $this->sftp_path( $file ) ) ), -3 ); } /** * Gets the file's group. * * @since 2.7.0 * * @param string $file Path to the file. * @return string|false The group on success, false on failure. */ public function group( $file ) { $gid = @filegroup( $this->sftp_path( $file ) ); if ( ! $gid ) { return false; } if ( ! function_exists( 'posix_getgrgid' ) ) { return $gid; } $grouparray = posix_getgrgid( $gid ); if ( ! $grouparray ) { return false; } return $grouparray['name']; } /** * Copies a file. * * @since 2.7.0 * * @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 2.7.0 * * @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 ) { if ( $this->exists( $destination ) ) { if ( $overwrite ) { // We need to remove the destination before we can rename the source. $this->delete( $destination, false, 'f' ); } else { // If we're not overwriting, the rename will fail, so return early. return false; } } return ssh2_sftp_rename( $this->sftp_link, $source, $destination ); } /** * Deletes a file or directory. * * @since 2.7.0 * * @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 ( 'f' === $type || $this->is_file( $file ) ) { return ssh2_sftp_unlink( $this->sftp_link, $file ); } if ( ! $recursive ) { return ssh2_sftp_rmdir( $this->sftp_link, $file ); } $filelist = $this->dirlist( $file ); if ( is_array( $filelist ) ) { foreach ( $filelist as $filename => $fileinfo ) { $this->delete( $file . '/' . $filename, $recursive, $fileinfo['type'] ); } } return ssh2_sftp_rmdir( $this->sftp_link, $file ); } /** * Checks if a file or directory exists. * * @since 2.7.0 * * @param string $path Path to file or directory. * @return bool Whether $path exists or not. */ public function exists( $path ) { return file_exists( $this->sftp_path( $path ) ); } /** * Checks if resource is a file. * * @since 2.7.0 * * @param string $file File path. * @return bool Whether $file is a file. */ public function is_file( $file ) { return is_file( $this->sftp_path( $file ) ); } /** * Checks if resource is a directory. * * @since 2.7.0 * * @param string $path Directory path. * @return bool Whether $path is a directory. */ public function is_dir( $path ) { return is_dir( $this->sftp_path( $path ) ); } /** * Checks if a file is readable. * * @since 2.7.0 * * @param string $file Path to file. * @return bool Whether $file is readable. */ public function is_readable( $file ) { return is_readable( $this->sftp_path( $file ) ); } /** * Checks if a file or directory is writable. * * @since 2.7.0 * * @param string $path Path to file or directory. * @return bool Whether $path is writable. */ public function is_writable( $path ) { // PHP will base its writable checks on system_user === file_owner, not ssh_user === file_owner. return true; } /** * Gets the file's last access time. * * @since 2.7.0 * * @param string $file Path to file. * @return int|false Unix timestamp representing last access time, false on failure. */ public function atime( $file ) { return fileatime( $this->sftp_path( $file ) ); } /** * Gets the file modification time. * * @since 2.7.0 * * @param string $file Path to file. * @return int|false Unix timestamp representing modification time, false on failure. */ public function mtime( $file ) { return filemtime( $this->sftp_path( $file ) ); } /** * Gets the file size (in bytes). * * @since 2.7.0 * * @param string $file Path to file. * @return int|false Size of the file in bytes on success, false on failure. */ public function size( $file ) { return filesize( $this->sftp_path( $file ) ); } /** * Sets the access and modification times of a file. * * Note: Not implemented. * * @since 2.7.0 * * @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 false Always returns false because not implemented. */ public function touch( $file, $time = 0, $atime = 0 ) { // Not implemented. return false; } /** * Creates a directory. * * @since 2.7.0 * * @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 ( ! $chmod ) { $chmod = FS_CHMOD_DIR; } if ( ! ssh2_sftp_mkdir( $this->sftp_link, $path, $chmod, true ) ) { return false; } // Set directory permissions. ssh2_sftp_chmod( $this->sftp_link, $path, $chmod ); if ( $chown ) { $this->chown( $path, $chown ); } if ( $chgrp ) { $this->chgrp( $path, $chgrp ); } return true; } /** * Deletes a directory. * * @since 2.7.0 * * @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 ); } /** * Gets details for files in a directory or a specific file. * * @since 2.7.0 * * @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 false $number File number. Always false in this context. * @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; } if ( ! $this->is_dir( $path ) || ! $this->is_readable( $path ) ) { return false; } $ret = array(); $dir = dir( $this->sftp_path( $path ) ); if ( ! $dir ) { return false; } $path = trailingslashit( $path ); while ( false !== ( $entry = $dir->read() ) ) { $struc = array(); $struc['name'] = $entry; if ( '.' === $struc['name'] || '..' === $struc['name'] ) { continue; // Do not care about these folders. } if ( ! $include_hidden && '.' === $struc['name'][0] ) { continue; } if ( $limit_file && $struc['name'] !== $limit_file ) { continue; } $struc['perms'] = $this->gethchmod( $path . $entry ); $struc['permsn'] = $this->getnumchmodfromh( $struc['perms'] ); $struc['number'] = false; $struc['owner'] = $this->owner( $path . $entry ); $struc['group'] = $this->group( $path . $entry ); $struc['size'] = $this->size( $path . $entry ); $struc['lastmodunix'] = $this->mtime( $path . $entry ); $struc['lastmod'] = gmdate( 'M j', $struc['lastmodunix'] ); $struc['time'] = gmdate( 'h:i:s', $struc['lastmodunix'] ); $struc['type'] = $this->is_dir( $path . $entry ) ? 'd' : 'f'; if ( 'd' === $struc['type'] ) { if ( $recursive ) { $struc['files'] = $this->dirlist( $path . $struc['name'], $include_hidden, $recursive ); } else { $struc['files'] = array(); } } $ret[ $struc['name'] ] = $struc; } $dir->close(); unset( $dir ); return $ret; } }