# Twisted, the Framework of Your Internet # Copyright (C) 2001-2003 Matthew W. Lefkowitz # # This library is free software; you can redistribute it and/or # modify it under the terms of version 2.1 of the GNU Lesser General Public # License as published by the Free Software Foundation. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # import struct, errno from twisted.internet import defer, protocol from twisted.python import failure, log from common import NS, getNS from twisted.conch.interfaces import ISFTPServer, ISFTPFile class FileTransferBase(protocol.Protocol): versions = (3, ) packetTypes = {} def __init__(self): self.buf = '' self.otherVersion = None # this gets set def sendPacket(self, kind, data): self.transport.write(struct.pack('!LB', len(data)+1, kind) + data) def dataReceived(self, data): self.buf += data while len(self.buf) > 5: length, kind = struct.unpack('!LB', self.buf[:5]) if len(self.buf) < 4 + length: return data, self.buf = self.buf[5:4+length], self.buf[4+length:] packetType = self.packetTypes.get(kind, None) if not packetType: log.msg('no packet type for', kind) continue f = getattr(self, 'packet_%s' % packetType, None) if not f: log.msg('not implemented: %s' % packetType) log.msg(repr(data[4:])) reqId = struct.unpack('!L', data[:4])[0] self._sendStatus(reqId, FX_OP_UNSUPPORTED, "don't understand %s" % packetType) #XXX not implemented continue try: f(data) except Exception, e: log.err(e) continue reqId = struct.unpack('!L', data[:4])[0] self._ebStatus(failure.Failure(e), reqId) def _parseAttributes(self, data): flags = struct.unpack('!L', data[:4])[0] attrs = {} data = data[4:] if flags & FILEXFER_ATTR_SIZE == FILEXFER_ATTR_SIZE: size = struct.unpack('!Q', data[:8])[0] attrs['size'] = size data = data[8:] if flags & FILEXFER_ATTR_OWNERGROUP == FILEXFER_ATTR_OWNERGROUP: uid, gid = struct.unpack('!2L', data[:8]) attrs['uid'] = uid attrs['gid'] = gid data = data[8:] if flags & FILEXFER_ATTR_PERMISSIONS == FILEXFER_ATTR_PERMISSIONS: perms = struct.unpack('!L', data[:4])[0] attrs['permissions'] = perms data = data[4:] if flags & FILEXFER_ATTR_ACMODTIME == FILEXFER_ATTR_ACMODTIME: atime, mtime = struct.unpack('!2L', data[:8]) attrs['atime'] = atime attrs['mtime'] = mtime data = data[8:] if flags & FILEXFER_ATTR_EXTENDED == FILEXFER_ATTR_EXTENDED: extended_count = struct.unpack('!L', data[4:])[0] data = data[4:] for i in xrange(extended_count): extended_type, data = getNS(data) extended_data, data = getNS(data) attrs['ext_%s' % extended_type] = extended_data return attrs, data def _packAttributes(self, attrs): flags = 0 data = '' if 'size' in attrs: data += struct.pack('!Q', attrs['size']) flags |= FILEXFER_ATTR_SIZE if 'uid' in attrs and 'gid' in attrs: data += struct.pack('!2L', attrs['uid'], attrs['gid']) flags |= FILEXFER_ATTR_OWNERGROUP if 'permissions' in attrs: data += struct.pack('!L', attrs['permissions']) flags |= FILEXFER_ATTR_PERMISSIONS if 'atime' in attrs and 'mtime' in attrs: data += struct.pack('!2L', attrs['atime'], attrs['mtime']) flags |= FILEXFER_ATTR_ACMODTIME extended = [] for k in attrs: if k.startswith('ext_'): ext_type = NS(k[4:]) ext_data = NS(attrs[k]) extended.append(ext_type+ext_data) if extended: data += struct.pack('!L', len(extended)) data += ''.join(extended) flags |= FILEXFER_ATTR_EXTENDED return struct.pack('!L', flags) + data class FileTransferServer(FileTransferBase): def __init__(self, data=None, avatar=None): FileTransferBase.__init__(self) self.client = ISFTPServer(avatar) # yay interfaces self.openFiles = {} self.openDirs = {} def packet_INIT(self, data): version = struct.unpack('!L', data[:4])[0] self.version = min(list(self.versions) + [version]) data = data[4:] ext = {} while data: ext_name, data = getNS(data) ext_data, data = getNS(data) ext[ext_name] = ext_data our_ext = self.client.gotVersion(version, ext) our_ext_data = "" for (k,v) in our_ext.items(): our_ext_data += NS(k) + NS(v) self.sendPacket(FXP_VERSION, struct.pack('!L', self.version) + \ our_ext_data) def packet_OPEN(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] filename, data = getNS(data) flags, data = struct.unpack('!L', data[:4])[0], data[4:] attrs, data = self._parseAttributes(data) assert data == '', 'still have data in OPEN: %s' % repr(data) d = defer.maybeDeferred(self.client.openFile, filename, flags, attrs) d.addCallback(self._cbOpenFile, requestId) d.addErrback(self._ebStatus, requestId, "open failed") def _cbOpenFile(self, fileObj, requestId): fileId = str(hash(fileObj)) if fileId in self.openFiles: raise KeyError, 'id already open' self.openFiles[fileId] = fileObj self.sendPacket(FXP_HANDLE, struct.pack('!L', requestId) + NS(fileId)) def packet_CLOSE(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] handle, data = getNS(data) assert data == '', 'still have data in CLOSE: %s' % repr(data) if handle in self.openFiles: fileObj = self.openFiles[handle] d = defer.maybeDeferred(fileObj.close) d.addCallback(self._cbClose, handle, requestId) d.addErrback(self._ebStatus, requestId, "close failed") elif handle in self.openDirs: dirObj = self.openDirs[handle][0] d = defer.maybeDeferred(dirObj.close) d.addCallback(self._cbClose, handle, requestId, 1) d.addErrback(self._ebStatus, requestId, "close failed") else: self._ebClose(failure.Failure(KeyError()), requestId) def _cbClose(self, result, handle, requestId, isDir = 0): if isDir: del self.openDirs[handle] else: del self.openFiles[handle] self._sendStatus(requestId, FX_OK, 'file closed') def packet_READ(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] handle, data = getNS(data) (offset, length), data = struct.unpack('!QL', data[:12]), data[12:] assert data == '', 'still have data in READ: %s' % repr(data) if handle not in self.openFiles: self._ebRead(failure.Failure(KeyError()), requestId) else: fileObj = self.openFiles[handle] d = defer.maybeDeferred(fileObj.readChunk, offset, length) d.addCallback(self._cbRead, requestId) d.addErrback(self._ebStatus, requestId, "read failed") def _cbRead(self, result, requestId): if result == '': # python's read will return this for EOF raise EOFError() self.sendPacket(FXP_DATA, struct.pack('!L', requestId) + NS(result)) def packet_WRITE(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] handle, data = getNS(data) offset, data = struct.unpack('!Q', data[:8])[0], data[8:] writeData, data = getNS(data) assert data == '', 'still have data in WRITE: %s' % repr(data) if handle not in self.openFiles: self._ebWrite(failure.Failure(KeyError()), requestId) else: fileObj = self.openFiles[handle] d = defer.maybeDeferred(fileObj.writeChunk, offset, writeData) d.addCallback(self._cbStatus, requestId, "write succeeded") d.addErrback(self._ebStatus, requestId, "write failed") def packet_REMOVE(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] filename, data = getNS(data) assert data == '', 'still have data in REMOVE: %s' % repr(data) d = defer.maybeDeferred(self.client.removeFile, filename) d.addCallback(self._cbStatus, requestId, "remove succeeded") d.addErrback(self._ebStatus, requestId, "remove failed") def packet_RENAME(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] oldPath, data = getNS(data) newPath, data = getNS(data) assert data == '', 'still have data in RENAME: %s' % repr(data) d = defer.maybeDeferred(self.client.renameFile, oldPath, newPath) d.addCallback(self._cbStatus, requestId, "rename succeeded") d.addErrback(self._ebStatus, requestId, "rename failed") def packet_MKDIR(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] path, data = getNS(data) attrs, data = self._parseAttributes(data) assert data == '', 'still have data in MKDIR: %s' % repr(data) d = defer.maybeDeferred(self.client.makeDirectory, path, attrs) d.addCallback(self._cbStatus, requestId, "mkdir succeeded") d.addErrback(self._ebStatus, requestId, "mkdir failed") def packet_RMDIR(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] path, data = getNS(data) assert data == '', 'still have data in RMDIR: %s' % repr(data) d = defer.maybeDeferred(self.client.removeDirectory, path) d.addCallback(self._cbStatus, requestId, "rmdir succeeded") d.addErrback(self._ebStatus, requestId, "rmdir failed") def packet_OPENDIR(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] path, data = getNS(data) assert data == '', 'still have data in OPENDIR: %s' % repr(data) d = defer.maybeDeferred(self.client.openDirectory, path) d.addCallback(self._cbOpenDirectory, requestId) d.addErrback(self._ebStatus, requestId, "opendir failed") def _cbOpenDirectory(self, dirObj, requestId): handle = str(hash(dirObj)) if handle in self.openDirs: raise KeyError, "already opened this directory" self.openDirs[handle] = [dirObj, iter(dirObj)] self.sendPacket(FXP_HANDLE, struct.pack('!L', requestId) + NS(handle)) def packet_READDIR(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] handle, data = getNS(data) assert data == '', 'still have data in READDIR: %s' % repr(data) if handle not in self.openDirs: self._ebStatus(failure.Failure(KeyError()), requestId) else: dirObj, dirIter = self.openDirs[handle] d = defer.maybeDeferred(self._scanDirectory, dirIter, []) d.addCallback(self._cbSendDirectory, requestId) d.addErrback(self._ebStatus, requestId, "scan directory failed") def _scanDirectory(self, dirIter, f): while len(f) < 250: try: info = dirIter.next() except StopIteration: if not f: raise EOFError return f if isinstance(info, defer.Deferred): d.addCallback(self._cbScanDirectory, dirIter, f) return else: f.append(info) return f def _cbScanDirectory(self, result, dirIter, f): f.append(result) return self._scanDirectory(dirIter, f) def _cbSendDirectory(self, result, requestId): data = '' for (filename, longname, attrs) in result: data += NS(filename) data += NS(longname) data += self._packAttributes(attrs) self.sendPacket(FXP_NAME, struct.pack('!2L', requestId, len(result))+data) def packet_STAT(self, data, followLinks = 1): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] path, data = getNS(data) assert data == '', 'still have data in STAT/LSTAT: %s' % repr(data) d = defer.maybeDeferred(self.client.getAttrs, path, followLinks) d.addCallback(self._cbStat, requestId) d.addErrback(self._ebStatus, requestId, 'stat/lstat failed') def packet_LSTAT(self, data): self.packet_STAT(data, 0) def packet_FSTAT(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] handle, data = getNS(data) assert data == '', 'still have data in FSTAT: %s' % repr(data) if handle not in self.openDirs: self._ebStatus(failure.Failure(KeyError()), requestId) else: fileObj = self.openFiles[handle] d = defer.maybeDeferred(fileObj.getAttrs) d.addCallback(self._cbStat, requestId) d.addErrback(self._ebStatus, requestId, 'fstat failed') def _cbStat(self, result, requestId): data = struct.pack('!L', requestId) + self._packAttributes(result) self.sendPacket(FXP_ATTRS, data) def packet_SETSTAT(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] path, data = getNS(data) attrs, data = self._parseAttributes(data) assert data == '', 'still have data in SETSTAT: %s' % repr(data) d = defer.maybeDeferred(self.client.setAttrs, path, attrs) d.addCallback(self._cbStatus, requestId, 'setstat succeeded') d.addErrback(self._ebStatus, requestId, 'setstat failed') def packet_FSETSTAT(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] handle, data = getNS(data) attrs, data = self._parseAttributes(data) assert data == '', 'still have data in FSETSTAT: %s' % repr(data) if handle not in self.openFiles: self._ebStatus(failure.Failure(KeyError()), requestId) else: fileObj = self.openFiles[handle] d = defer.maybeDeferred(fileObj.setAttrs, attrs) d.addCallback(self._cbStatus, requestId, 'fsetstat succeeded') d.addErrback(self._ebStatus, requestId, 'fsetstat failed') def packet_READLINK(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] path, data = getNS(data) assert data == '', 'still have data in READLINK: %s' % repr(data) d = defer.maybeDeferred(self.client.readLink, path) d.addCallback(self._cbReadLink, requestId) d.addErrback(self._ebStatus, requestId, 'readlink failed') def _cbReadLink(self, result, requestId): self._cbSendDirectory([(result, '', {})], requestId) def packet_SYMLINK(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] linkPath, data = getNS(data) targetPath, data = getNS(data) d = defer.maybeDeferred(self.client.makeLink, linkPath, targetPath) d.addCallback(self._cbStatus, requestId, 'symlink succeeded') d.addErrback(self._ebStatus, requestId, 'symlink failed') def packet_REALPATH(self, data): requestId, data = struct.unpack('!L', data[:4])[0], data[4:] path, data = getNS(data) assert data == '', 'still have data in REALPATH: %s' % repr(data) d = defer.maybeDeferred(self.client.realPath, path) d.addCallback(self._cbReadLink, requestId) # same return format d.addErrback(self._ebStatus, requestId, 'realpath failed') def _cbStatus(self, result, requestId, msg = "request succeeded"): self._sendStatus(requestId, FX_OK, msg) def _ebStatus(self, reason, requestId, msg = "request failed"): code = FX_FAILURE message = msg if reason.type in (IOError, OSError): if reason.value.errno == errno.ENOENT: # no such file code = FX_NO_SUCH_FILE message = reason.value.strerror elif reason.value.errno == errno.EACCES: # permission denied code = FX_PERMISSION_DENIED message = reason.value.strerror else: log.err(reason) elif reason.type == EOFError: # EOF code = FX_EOF if reason.value.args: message = reason.value.args[0] elif reason.type == SFTPError: code = reason.value.code message = reason.value.message else: log.err(reason) self._sendStatus(requestId, code, message) def _sendStatus(self, requestId, code, message, lang = ''): """ Helper method to send a FXP_STATUS message. """ data = struct.pack('!2L', requestId, code) data += NS(message) data += NS(lang) self.sendPacket(FXP_STATUS, data) class FileTransferClient(FileTransferBase): def __init__(self, extData = {}): """ extData is a dict of extended_name : extended_data items to be sent to the server. """ FileTransferBase.__init__(self) self.extData = {} self.counter = 0 self.openRequests = {} # id -> Deferred self.wasAFile = {} # Deferred -> 1 TERRIBLE HACK def connectionMade(self): data = struct.pack('!L', max(self.versions)) for k,v in self.extData.itervalues(): data += NS(k) + NS(v) self.sendPacket(FXP_INIT, data) def _sendRequest(self, msg, data): data = struct.pack('!L', self.counter) + data d = defer.Deferred() self.openRequests[self.counter] = d self.counter += 1 self.sendPacket(msg, data) return d def _parseRequest(self, data): (id,) = struct.unpack('!L', data[:4]) d = self.openRequests[id] del self.openRequests[id] return d, data[4:] def openFile(self, filename, flags, attrs): """ Open a file. filename is a string representing the file to open. flags is a integer of the flags to open the file with, ORed together. The flags and their values are listed at the bottom of this file. attrs is a list of attributes to open the file with. It is a dictionary, consisting of 0 or more keys. The possible keys are: size: the size of the file in bytes uid: the user ID of the file as an integer gid: the group ID of the file as an integer permissions: the permissions of the file with as an integer. the bit representation of this field is defined by POSIX. atime: the access time of the file as seconds since the epoch. mtime: the modification time of the file as seconds since the epoch. ext_*: extended attributes. The server is not required to understand this, but it may. NOTE: there is no way to indicate text or binary files. it is up to the SFTP client to deal with this. This method returns an Deferred that is called back with an object that meets the ISFTPFile interface. """ data = NS(filename) + struct.pack('!L', flags) + self._packAttrs(attrs) d = self._sendRequest(FXP_OPEN, data) self.wasAFile[d] = 1 # HACK return d def removeFile(self, filename): """ Remove the given file. filename is the name of the file as a string. This method returns a Deferred that is called back when it succeeds. """ return self._sendRequest(FXP_REMOVE, NS(filename)) def renameFile(self, oldpath, newpath): """ Rename the given file. oldpath is the current location of the file. newpath is the new file name. This method returns a Deferred that is called back when it succeeds. """ return self._sendRequest(FXP_RENAME, NS(oldpath)+NS(newpath)) def makeDirectory(self, path, attrs): """ Make a directory. path is the name of the directory to create as a string. attrs is a dictionary of attributes to create the directory with. It's meaning is the same as the attrs in the openFile method. This method returns a Deferred that is called back when it is created. """ return self._sendRequest(FXP_MKDIR, NS(path)+self._packAttrs(attrs)) def removeDirectory(self, path): """ Remove a directory (non-recursively) path is the directory to remove. It is an error to remove a directory that has files or directories in it. This method returns a Deferred that is called back when it is removed. """ return self._sendRequest(FXP_RMDIR, NS(path)) def openDirectory(self, path): """ Open a directory for scanning. path is the directory to open. This method returns a Deferred that is called back with an iterable object that has a close() method, The close() method is called when the client is finished reading from the directory. At this point, the iterable will no longer be used. The iterable returns triples of the form (filename, longname, attrs) or a Deferred that returns the same. The sequence must support __getitem__, but otherwise may be any 'sequence-like' object. filename is the name of the file relative to the directory. logname is an expanded format of the filename. The recommended format is: -rwxr-xr-x 1 mjos staff 348911 Mar 25 14:29 t-filexfer 1234567890 123 12345678 12345678 12345678 123456789012 The first line is sample output, the second is the length of the field. The fields are: permissions, link count, user owner, group owner, size in bytes, modification time. attrs is a dictionary in the format of the attrs argument to openFile. """ return self._sendRequest(FXP_OPENDIR, NS(path)) def getAttrs(self, path, followLinks): """ Return the attributes for the given path. path is the path to return attributes for as a string. followLinks is a boolean. if it is True, follow symbolic links and return attributes for the real path at the base. if it is False, return attributes for the specified path. This method returns a dictionary in the same format as the attrs argument to openFile or a Deferred that is called back with same. """ if followLinks: m = FXP_STAT else: m = FXP_LSTAT return self._sendRequest(m, NS(path)) def setAttrs(self, path, attrs): """ Set the attributes for the path. path is the path to set attributes for as a string. attrs is a idctionary in the same format as the attrs argument to openFile. This method returns when the attributes are set or a Deferred that is called back when they are. """ data = NS(path) + self._packAttributes(attrs) return self._sendRequest(FXP_SETSTAT, data) def readLink(self, path): """ Find the root of a set of symbolic links. path is the path of the symlink to read. This method returns the target of the link, or a Deferred that returns the same. """ return self._sendRequest(FXP_READLINK, NS(path)) def makeLink(self, linkPath, targetPath): """ Create a symbolic link. linkPath is is the pathname of the symlink as a string targetPath is the path of the target of the link as a string. This method returns when the link is made, or a Deferred that returns the same. """ return self._sendRequest(FXP_SYMLINK, NS(linkpath)+NS(targetpath)) def realPath(self, path): """ Convert any path to an absolute path. path is the path to convert as a string. This method returns the absolute path as a string, or a Deferred that returns the same. """ return self._sendRequest(FXP_REALPATH, NS(path)) def extendedRequest(self, request, data): return self._sendRequest(FXP_EXTENDED, data) def packet_VERSION(self, data): version, data = struct.unpack('!L', data[:4])[0], data[4:] d = {} while data: k, data = getNS(data) v, data = getNS(data) d[k]=v self.version = version self.gotServerVersion(version, d) def packet_STATUS(self, data): d, data = self._parseRequest(data) code, data = struct.unpack('!L', data[:4])[0], data[4:] msg, data = getNS(data) lang = getNS(data) if code == FX_OK: d.callback((msg, lang)) else: d.errback(SFTPError(code, msg, lang)) def packet_HANDLE(self, data): d, data = self._parseRequest(data) print 'got a handle' if self.wasAFile.has_key(d): d.callback(ClientFile(self, getNS(data)[0])) del self.wasAFile[d] else: print 'was a directory' d.callback(ClientDirectory(self, getNS(data)[0])) def packet_DATA(self, data): d, data = self._parseRequest(data) d.callback(getNS(data)[0]) def packet_NAME(self, data): print 'got a name request' d, data = self._parseRequest(data) count, data = struct.unpack('!L', data[:4])[0], data[4:] files = [] for i in range(count): filename, data = getNS(data) longname, data = getNS(data) attrs, data = self._parseAttributes(data) files.append((filename, longname, attrs)) d.callback(files) def packet_ATTRS(self, data): d, data = self._parseRequest(data) d.callback(self._parseAttributes(data)[0]) def packet_EXTENDED_REPLY(self, data): d, data = self._parseRequest(data) d.callback(data) def gotServerVersion(self, serverVersion, extData): """ Called when the client sends their version info. otherVersion is an integer representing the version of the SFTP protocol they are claiming. extData is a dictionary of extended_name : extended_data items. These items are sent by the client to indicate additional features. """ class ClientFile: def __init__(self, parent, handle): self.parent = parent self.handle = NS(handle) def close(self): return self.parent._sendRequest(FXP_CLOSE, self.handle) def readChunk(self, offset, length): data = self.handle + struct.pack("!QL", offset, length) return self.parent._sendRequest(FXP_READ, data) def writeChunk(self, offset, length): data = self.handle + struct.pack("!QL", offset, length) return self.parent._sendRequest(FXP_WRITE, data) def getAttrs(self): return self.parent._sendRequest(FXP_FSTAT, self.handle) def setAttrs(self, attrs): data = self.handle + self.parent._packAttributes(attrs) return self.parent._sendRequest(FXP_FSTAT, data) class ClientDirectory: def __init__(self, parent, handle): self.parent = parent self.handle = NS(handle) self.filesCache = [] def close(self): return self.parent._sendRequest(FXP_CLOSE, self.handle) def __iter__(self): return self def next(self): if self.filesCache: return self.filesCache.pop(0) d = self.parent._sendRequest(FXP_READDIR, self.handle) d.addCallback(self._cbReadDir) return d def _cbReadDir(self, names): self.filesCache = names[1:] return names[0] class SFTPError(Exception): def __init__(self, errorCode, errorMessage, lang = ''): Exception.__init__(self) self.code = errorCode self.message = errorMessage self.lang = lang def __str__(self): return 'SFTPError %s: %s' % (self.code, self.message) FXP_INIT = 1 FXP_VERSION = 2 FXP_OPEN = 3 FXP_CLOSE = 4 FXP_READ = 5 FXP_WRITE = 6 FXP_LSTAT = 7 FXP_FSTAT = 8 FXP_SETSTAT = 9 FXP_FSETSTAT = 10 FXP_OPENDIR = 11 FXP_READDIR = 12 FXP_REMOVE = 13 FXP_MKDIR = 14 FXP_RMDIR = 15 FXP_REALPATH = 16 FXP_STAT = 17 FXP_RENAME = 18 FXP_READLINK = 19 FXP_SYMLINK = 20 FXP_STATUS = 101 FXP_HANDLE = 102 FXP_DATA = 103 FXP_NAME = 104 FXP_ATTRS = 105 FXP_EXTENDED = 200 FXP_EXTENDED_REPLY = 201 FILEXFER_ATTR_SIZE = 0x00000001 FILEXFER_ATTR_OWNERGROUP = 0x00000002 FILEXFER_ATTR_PERMISSIONS = 0x00000004 FILEXFER_ATTR_ACMODTIME = 0x00000009 FILEXFER_ATTR_EXTENDED = 0x+80000000 FILEXFER_TYPE_REGULAR = 1 FILEXFER_TYPE_DIRECTORY = 2 FILEXFER_TYPE_SYMLINK = 3 FILEXFER_TYPE_SPECIAL = 4 FILEXFER_TYPE_UNKNOWN = 5 FXF_READ = 0x00000001 FXF_WRITE = 0x00000002 FXF_APPEND = 0x00000004 FXF_CREAT = 0x00000008 FXF_TRUNC = 0x00000010 FXF_EXCL = 0x00000020 FXF_TEXT = 0x00000040 FX_OK = 0 FX_EOF = 1 FX_NO_SUCH_FILE = 2 FX_PERMISSION_DENIED = 3 FX_FAILURE = 4 FX_BAD_MESSAGE = 5 FX_NO_CONNECTION = 6 FX_CONNECTION_LOST = 7 FX_OP_UNSUPPORTED = 8 # initialize FileTransferBase.packetTypes: g = globals() for name in g.keys(): if name.startswith('FXP_'): value = g[name] FileTransferBase.packetTypes[value] = name[4:] del g, name, value