# Twisted, the Framework of Your Internet # Copyright (C) 2001 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 """FTP tests. Server Test Maintainer: slyphon (Jonathan D. Simms) Client Test Maintainer: spiv """ from __future__ import nested_scopes import sys, types, os.path, re from StringIO import StringIO from twisted import internet from twisted.trial import unittest from twisted.protocols import basic from twisted.internet import reactor, protocol, defer, interfaces from twisted.cred import error, portal, checkers, credentials from twisted.python import log, components, failure from twisted.protocols import ftp, loopback class NonClosingStringIO(StringIO): def close(self): pass StringIOWithoutClosing = NonClosingStringIO class CustomFileWrapper(protocol.FileWrapper): def write(self, data): protocol.FileWrapper.write(self, data) #self._checkProducer() #def loseConnection(self): #self.closed = 1 class CustomLogObserver(log.FileLogObserver): '''a log observer that prints more than the default''' def emit(self, eventDict): pass class IOPump: """Utility to pump data between clients and servers for protocol testing. Perhaps this is a utility worthy of being in protocol.py? """ def __init__(self, client, server, clientIO, serverIO): self.client = client self.server = server self.clientIO = clientIO self.serverIO = serverIO def flush(self): "Pump until there is no more input or output." reactor.iterate() while self.pump(): reactor.iterate() reactor.iterate() def pumpAndCount(self): numMessages = 0 while True: result = self.pump() if result == 0: return numMessages else: numMessages += result def pump(self): """Move data back and forth. Returns whether any data was moved. """ self.clientIO.seek(0) self.serverIO.seek(0) cData = self.clientIO.read() sData = self.serverIO.read() self.clientIO.seek(0) self.serverIO.seek(0) self.clientIO.truncate() self.serverIO.truncate() self.client.transport._checkProducer() self.server.transport._checkProducer() for byte in cData: self.server.dataReceived(byte) for byte in sData: self.client.dataReceived(byte) if cData or sData: return 1 else: return 0 def getTuple(self): return (self.client, self.server, self.pump, self.flush) def getPortal(): port = portal.Portal(ftp.FTPRealm()) port.registerChecker(checkers.AllowAnonymousAccess(), credentials.IAnonymous) return port class ServerFactoryForTest(protocol.Factory): def __init__(self, portal): self.protocol = ftp.FTP self.allowAnonymous = True self.userAnonymous = 'anonymous' self.timeOut = 30 self.dtpTimeout = 10 self.maxProtocolInstances = 100 self.instances = [] self.portal = portal class Dummy(basic.LineReceiver): logname = None def __init__(self): self.lines = [] self.rawData = [] def connectionMade(self): self.f = self.factory # to save typing in pdb :-) def lineReceived(self,line): self.lines.append(line) def rawDataReceived(self, data): self.rawData.append(data) def lineLengthExceeded(self, line): pass class ConnectedFTPServer(object): c = None s = None iop = None dc = None ds = None diop = None def __init__(self): self.deferred = defer.Deferred() s = ftp.FTP() c = Dummy() c.logname = 'ftp-pi' self.cio, self.sio = NonClosingStringIO(), NonClosingStringIO() s.factory = ServerFactoryForTest(getPortal()) s.factory.timeOut = None s.factory.dtpTimeout = None c.factory = protocol.ClientFactory() c.factory.protocol = Dummy c.makeConnection(CustomFileWrapper(self.cio)) s.makeConnection(CustomFileWrapper(self.sio)) iop = IOPump(c, s, self.cio, self.sio) self.c, self.s, self.iop = c, s, iop def hookUpDTP(self): log.debug('hooking up dtp') self.dcio, self.dsio = NonClosingStringIO(), NonClosingStringIO() ds = ftp.DTP() ds.pi = self.s ds.pi.dtpInstance = ds ds.pi.dtpPort = ('i','',0) ds.factory = ftp.DTPFactory(self.s) self.s.dtpFactory = ds.factory self.s.TestingSoJustSkipTheReactorStep = True ds.makeConnection(CustomFileWrapper(self.dsio)) dc = Dummy() dc.logname = 'ftp-dtp' dc.factory = protocol.ClientFactory() dc.factory.protocol = Dummy dc.setRawMode() del dc.lines dc.makeConnection(CustomFileWrapper(self.dcio)) iop = IOPump(dc, ds, self.dcio, self.dsio) self.dc, self.ds, self.diop = dc, ds, iop log.debug('flushing pi buffer') self.iop.flush() log.debug('hooked up dtp') return def getDtpCSTuple(self): if not self.s.shell: self.loadAvatar() if not self.dc: self.hookUpDTP() return (self.dc, self.ds, self.diop) def getCSTuple(self): return (self.c, self.s, self.iop, self.srvReceive) def srvReceive(self, *args): for msg in args: self.s.lineReceived(msg) self.iop.flush() def loadAvatar(self): log.debug('BogusAvatar.loadAvatar') shell = BogusAvatar() shell.tld = '/home/foo' shell.debug = True shell.clientwd = '/' shell.user = 'anonymous' shell.uid = 1000 shell.gid = 1000 self.s.shell = shell self.s.user = 'anonymous' return shell bogusfiles = [ {'type': 'f', 'name': 'foo.txt', 'size': 1586, 'date': '20030102125902', 'listrep': '-rwxr-xr-x 1 anonymous anonymous 1586 Jan 02 12:59 foo.txt\r\n' }, {'type': 'f', 'name': 'bar.tar.gz', 'size': 4872, 'date': '2003 11 22 01 55 22', 'listrep': '-rwxr-xr-x 1 anonymous anonymous 4872 Nov 22 01:55 bar.tar.gz\r\n' } ] bogusDirs = { 'name': '/home/foo', 'subdirs': [ {'name': '/home/foo/dir1', 'subdirs': []}, {'name': '/home/foo/dir2', 'subdirs': []} ] } class BogusAvatar(object): __implements__ = (ftp.IFTPShell,) filesize = None def __init__(self): self.user = None # user name self.uid = None # uid of anonymous user for shell self.gid = None # gid of anonymous user for shell self.clientwd = None self.tld = None self.debug = True def pwd(self): pass def cwd(self, path): pass def cdup(self): pass def dele(self, path): pass def mkd(self, path): pass def rmd(self, path): pass def retr(self, path=None): log.debug('BogusAvatar.retr') if path == 'ASCII': text = """this is a line with a dos terminator\r\n this is a line with a unix terminator\n""" else: self.path = path if self.filesize is not None: # self.filesize is used in the sanity check size = self.filesize else: size = bogusfiles[0]['size'] endln = ['\r','\n'] text = [] for n in xrange(size/26): line = [chr(x) for x in xrange(97,123)] line.extend(endln) text.extend(line) del text[(size - 2):] text.extend(endln) sio = NonClosingStringIO(''.join(text)) self.finalFileSize = len(sio.getvalue()) log.msg("BogusAvatar.retr: file size = %d" % self.finalFileSize) sio.seek(0) self.sentfile = sio return (sio, self.finalFileSize) def stor(self, params): pass def list(self, path): sio = NonClosingStringIO() for f in bogusfiles: sio.write(f['listrep']) sio.seek(0) self.sentlist = sio return (sio, len(sio.getvalue())) def mdtm(self, path): pass def size(self, path): pass def nlist(self, path): pass class FTPTestCase(unittest.TestCase): def setUp(self): self.cnx = ConnectedFTPServer() def tearDown(self): delayeds = reactor.getDelayedCalls() for d in delayeds: d.cancel() self.cnx = None class TestUtilityFunctions(unittest.TestCase): def testCleanPath(self): import os.path as osp evilPaths = [r"..\/*/foobar/ding//dong/\\**", r"../../\\**/*/fhet/*/..///\\//..///#$#221./*"] exorcisedPaths = ["..\/foobar/ding/dong","../../../#$#221."] for i in range(len(evilPaths)): cp = ftp.cleanPath(evilPaths[i]) self.failUnlessEqual(cp, exorcisedPaths[i]) log.msg(cp) testCleanPath.skip = 'this test needs more work' class TestFTPFactory(FTPTestCase): def testBuildProtocol(self): ftpf = ftp.FTPFactory(maxProtocolInstances=1) cinum = ftpf.currentInstanceNum p = ftpf.buildProtocol(('i', None, 30000)) self.failUnless(components.implements(ftpf, interfaces.IProtocolFactory), "FTPFactory does not implement interfaces.IProtocolFactory") self.failUnless(components.implements(p, interfaces.IProtocol), "protocol instance does not implement interfaces.IProtocol") self.failUnlessEqual(p.protocol, ftpf.protocol) self.failUnlessEqual(p.protocol, ftp.FTP) self.failUnlessEqual(p.portal, ftpf.portal) self.failUnlessEqual(p.timeOut, ftp.FTPFactory.timeOut) self.failUnlessEqual(p.factory, ftpf) self.failUnlessEqual(ftpf.currentInstanceNum, cinum + 1) self.failUnlessEqual(p.instanceNum, ftpf.currentInstanceNum) self.failUnlessEqual(len(ftpf.instances), 1) self.failUnlessEqual(ftpf.instances[0], p) testBuildProtocol.skip = "add test for maxProtocolInstances=None" class TestFTPServer(FTPTestCase): def testNotLoggedInReply(self): cli, sr, iop, send = self.cnx.getCSTuple() cmdlist = ['CDUP', 'CWD', 'LIST', 'MODE', 'PASV', 'PORT', 'PWD', 'RETR', 'STRU', 'SYST', 'TYPE'] for cmd in cmdlist: send(cmd) self.failUnless(cli.lines > 0) self.assertEqual(cli.lines[-1], ftp.RESPONSE[ftp.NOT_LOGGED_IN]) def testBadCmdSequenceReply(self): cli, sr, iop, send = self.cnx.getCSTuple() send('PASS') self.failUnless(cli.lines > 0) self.assertEqual(cli.lines[-1], ftp.RESPONSE[ftp.BAD_CMD_SEQ] % 'USER required before PASS') def testBadCmdSequenceReplyPartTwo(self): cli, sr, iop, send = self.cnx.getCSTuple() self.cnx.loadAvatar() self.failUnlessRaises(ftp.BadCmdSequenceError, self.cnx.s.ftp_RETR,'foo') #self.assertEqual(cli.lines[-1], ftp.RESPONSE[ftp.BAD_CMD_SEQ] % 'must send PORT or PASV before RETR') log.flushErrors(ftp.BadCmdSequenceError) def testCmdNotImplementedForArgErrors(self): cli, sr, iop, send = self.cnx.getCSTuple() self.cnx.loadAvatar() self.failUnlessRaises(ftp.CmdNotImplementedForArgError, self.cnx.s.ftp_MODE, 'z') self.failUnlessRaises(ftp.CmdNotImplementedForArgError, self.cnx.s.ftp_STRU, 'I') def testDecodeHostPort(self): self.assertEquals(self.cnx.s.decodeHostPort('25,234,129,22,100,23'), ('25.234.129.22', 25623)) def testPASV(self): cli, sr, iop, send = self.cnx.getCSTuple() self.cnx.loadAvatar() self.cnx.s.ftp_PASV() iop.flush() reply = cli.lines[-1] self.assert_(re.search(r'227 =.*,[0-2]?[0-9]?[0-9],[0-2]?[0-9]?[0-9]',cli.lines[-1])) def testTYPE(self): cli, sr, iop, send = self.cnx.getCSTuple() self.cnx.loadAvatar() for n in ['I', 'A', 'L', 'i', 'a', 'l']: self.cnx.s.ftp_TYPE(n) iop.flush() self.assertEquals(cli.lines[-1], ftp.RESPONSE[ftp.TYPE_SET_OK] % n.upper()) if n in ['I', 'L', 'i', 'l']: self.assertEquals(self.cnx.s.binary, True) else: self.assertEquals(self.cnx.s.binary, False) s = ftp.FTP() okParams = ['i', 'a', 'l'] for n in [chr(x) for x in xrange(97,123)]: if n not in okParams: self.failUnlessRaises(ftp.CmdArgSyntaxError, s.ftp_TYPE, n) self.cnx.hookUpDTP() dc, ds, diop = self.cnx.getDtpCSTuple() sr.dtpTxfrMode = ftp.PASV sr.ftp_TYPE('A') # set ascii mode self.assertEquals(self.cnx.s.binary, False) iop.flush() diop.flush() log.debug('flushed buffers, about to run RETR') sr.ftp_RETR('ASCII') iop.flush() diop.flush() self.failUnless(len(dc.rawData) >= 1) log.msg(dc.rawData) rx = ''.join(dc.rawData) log.msg(rx) self.failUnlessEqual(rx.count('\r\n'), 2, "more than 2 \\r\\n's ") self.fail('test is not complete') testTYPE.skip = 'rework tests to make sure only binary is supported' def testRETR(self): cli, sr, iop, send = self.cnx.getCSTuple() avatar = self.cnx.loadAvatar() sr.ftp_TYPE('L') self.assert_(self.cnx.s.binary == True) iop.flush() self.cnx.hookUpDTP() dc, ds, diop = self.cnx.getDtpCSTuple() sr.dtpTxfrMode = ftp.PASV self.assert_(sr.blocked is None) self.assert_(sr.dtpTxfrMode == ftp.PASV) log.msg('about to send RETR command') filename = '/home/foo/foo.txt' send('RETR %s' % filename) iop.flush() diop.flush() log.msg('dc.rawData: %s' % dc.rawData) self.assert_(len(dc.rawData) >= 1) self.failUnlessEqual(avatar.path, filename) rx = ''.join(dc.rawData) self.failUnlessEqual(rx, avatar.sentfile.getvalue()) testRETR.skip = 'awaiting MASSIVE refactoring of ftp.py' def testSYST(self): cli, sr, iop, send = self.cnx.getCSTuple() self.cnx.loadAvatar() self.cnx.s.ftp_SYST() iop.flush() self.assertEquals(cli.lines[-1], ftp.RESPONSE[ftp.NAME_SYS_TYPE]) def testLIST(self): cli, sr, iop, send = self.cnx.getCSTuple() avatar = self.cnx.loadAvatar() sr.dtpTxfrMode = ftp.PASV self.cnx.hookUpDTP() dc, ds, diop = self.cnx.getDtpCSTuple() self.assert_(hasattr(self.cnx.s, 'binary')) self.cnx.s.binary = True sr.ftp_LIST('/') iop.flush() diop.flush() log.debug('dc.rawData: %s' % dc.rawData) self.assert_(len(dc.rawData) > 1) avatarsent = avatar.sentlist.getvalue() dcrx = ''.join(dc.rawData) #print avatarsent.strip(), dcrx.strip() self.assertEqual(avatarsent, dcrx, """ avatar's sentlist != dtp client's ''.join(rawData) avatar's sentlist: %s ''.join(dc.rawData): %s """ % (avatarsent, dcrx)) #testLIST.todo = 'something is b0rK3n' class TestDTPTesting(FTPTestCase): def testDTPTestingSanityCheck(self): filesizes = [(n*100) for n in xrange(100,110)] for fs in filesizes: self.tearDown() self.setUp() self.runtest(fs) def runtest(self, filesize): cli, sr, iop, send = self.cnx.getCSTuple() avatar = self.cnx.loadAvatar() avatar.filesize = filesize sr.dtpTxfrMode = ftp.PASV sr.binary = True # set transfer mode to binary self.cnx.hookUpDTP() dc, ds, diop = self.cnx.getDtpCSTuple() sr.ftp_RETR('') iop.flush() diop.flush() log.debug('dc.rawData size: %d' % len(dc.rawData)) rxLines = ''.join(dc.rawData) lenRxLines = len(rxLines) sizes = 'filesize before txmit: %d, filesize after txmit: %d' % (avatar.finalFileSize, lenRxLines) percent = 'percent actually received %f' % ((float(lenRxLines) / float(avatar.finalFileSize))*100) log.debug(sizes) log.debug(percent) self.assertEquals(lenRxLines, avatar.finalFileSize) class TestAnonymousAvatar(FTPTestCase): def testAnonymousLogin(self): c, s, pump, send = self.cnx.getCSTuple() pump.flush() got = c.lines[-2:] wanted = ftp.RESPONSE[ftp.WELCOME_MSG].split('\r\n') self.assertEquals(wanted, got, "wanted: %s\n\ngot: %s" % (wanted,got)) c.sendLine('USER anonymous') pump.flush() self.assertEquals(c.lines[-1], ftp.RESPONSE[ftp.GUEST_NAME_OK_NEED_EMAIL]) c.sendLine('PASS w00t@twistedmatrix.com') pump.flush() wanted = ftp.RESPONSE[ftp.GUEST_LOGGED_IN_PROCEED] got = c.lines[-1] self.assertEquals(wanted, got, "wanted: %s\n\ngot: %s" % (wanted,got)) testAnonymousLogin.skip = 'this test needs to be refactored' def doAnonymousLogin(self,c,s,pump): c, s, pump, send = self.cnx.getCSTuple() pump.flush() c.sendLine('USER anonymous') pump.flush() c.sendLine('PASS w00t@twistedmatrix.com') pump.flush() def testPWDOnLogin(self): c, s, pump, send = self.cnx.getCSTuple() self.doAnonymousLogin(c,s,pump) c.sendLine('PWD') pump.flush() self.assertEquals(c.lines[-1], '257 "/" is current directory.') testPWDOnLogin.skip = 'need to implement fake filesystem for testing' def testCWD(self): import warnings warnings.warn("""This test is VERY FRAGILE! in fact, its so fragile it won't run on any other computer but mine""") c, s, pump, send = self.cnx.getCSTuple() send = c.sendLine flush = pump.flush self.doAnonymousLogin(c,s,pump) send('CWD src'); flush() self.assertEquals(c.lines[-1], ftp.RESPONSE[ftp.REQ_FILE_ACTN_COMPLETED_OK]) send('PWD'); flush() self.assertEquals(c.lines[-1], '257 "/src" is current directory.') send('CWD freemind'); flush() self.assertEquals(c.lines[-1], ftp.RESPONSE[ftp.REQ_FILE_ACTN_COMPLETED_OK]) send('PWD'); flush() self.assertEquals(c.lines[-1], '257 "/src/freemind" is current directory.') send('CWD ../radix'); flush() self.assertEquals(c.lines[-1], ftp.RESPONSE[ftp.REQ_FILE_ACTN_COMPLETED_OK]) send('PWD'); flush() send('CWD ../../../'); flush() testCWD.skip = 'need to implement fake filesystem for testing' def testCDUP(self): c, s, pump, send = self.cnx.getCSTuple() send = c.sendLine flush = pump.flush self.doAnonymousLogin(c,s,pump) send('CWD src/freemind/doc'); flush() send('PWD'); flush() self.assertEquals(c.lines[-1], '257 "/src/freemind/doc" is current directory.') send('CDUP'); flush() send('PWD'); flush() self.assertEquals(c.lines[-1], '257 "/src/freemind" is current directory.') send('CDUP'); flush() send('PWD'); flush() self.assertEquals(c.lines[-1], '257 "/src" is current directory.') send('CDUP'); flush() send('PWD'); flush() self.assertEquals(c.lines[-1], '257 "/" is current directory.') testCDUP.skip = 'need to implement fake filesystem for testing' # def testWelcomeMessage(self): # c, s, pump, send = self.cnx.getCSTuple() # pump.flush() # self.assertEquals(c.lines[-1], ftp.RESPONSE[ftp.WELCOME_MSG]) # # testWelcomeMessage.todo = 'not ready yet' def testGetUserUIDAndGID(self): pass #TestAnonymousAvatar.skip = 'skip until we can support it' # -- Experimenting with process protocol class ChildProcessProtocol(protocol.ProcessProtocol): def __init__(self, doneLoading): self.doneLoading = doneLoading def outReceived(self, data): if 'set uid/gid' in data: self.doneLoading.callback("twistd ready") def errReceived(self, data): self.doneLoading.errback(data) def processEnded(self, status): self.doneLoading.callback("It's done") # -- Client Tests ----------------------------------------------------------- class PrintLines(protocol.Protocol): """Helper class used by FTPFileListingTests.""" def __init__(self, lines): self._lines = lines def connectionMade(self): for line in self._lines: self.transport.write(line + "\r\n") self.transport.loseConnection() class MyFTPFileListProtocol(ftp.FTPFileListProtocol): def __init__(self): self.other = [] ftp.FTPFileListProtocol.__init__(self) def unknownLine(self, line): self.other.append(line) class FTPFileListingTests(unittest.TestCase): def getFilesForLines(self, lines): fileList = MyFTPFileListProtocol() loopback.loopback(PrintLines(lines), fileList) return fileList.files, fileList.other def testOneLine(self): # This example line taken from the docstring for FTPFileListProtocol line = '-rw-r--r-- 1 root other 531 Jan 29 03:26 README' (file,), other = self.getFilesForLines([line]) self.failIf(other, 'unexpect unparsable lines: %s' % repr(other)) self.failUnless(file['filetype'] == '-', 'misparsed fileitem') self.failUnless(file['perms'] == 'rw-r--r--', 'misparsed perms') self.failUnless(file['owner'] == 'root', 'misparsed fileitem') self.failUnless(file['group'] == 'other', 'misparsed fileitem') self.failUnless(file['size'] == 531, 'misparsed fileitem') self.failUnless(file['date'] == 'Jan 29 03:26', 'misparsed fileitem') self.failUnless(file['filename'] == 'README', 'misparsed fileitem') self.failUnless(file['nlinks'] == 1, 'misparsed nlinks') self.failIf(file['linktarget'], 'misparsed linktarget') def testVariantLines(self): line1 = 'drw-r--r-- 2 root other 531 Jan 9 2003 A' line2 = 'lrw-r--r-- 1 root other 1 Jan 29 03:26 B -> A' line3 = 'woohoo! ' (file1, file2), (other,) = self.getFilesForLines([line1, line2, line3]) self.failUnless(other == 'woohoo! \r', 'incorrect other line') # file 1 self.failUnless(file1['filetype'] == 'd', 'misparsed fileitem') self.failUnless(file1['perms'] == 'rw-r--r--', 'misparsed perms') self.failUnless(file1['owner'] == 'root', 'misparsed owner') self.failUnless(file1['group'] == 'other', 'misparsed group') self.failUnless(file1['size'] == 531, 'misparsed size') self.failUnless(file1['date'] == 'Jan 9 2003', 'misparsed date') self.failUnless(file1['filename'] == 'A', 'misparsed filename') self.failUnless(file1['nlinks'] == 2, 'misparsed nlinks') self.failIf(file1['linktarget'], 'misparsed linktarget') # file 2 self.failUnless(file2['filetype'] == 'l', 'misparsed fileitem') self.failUnless(file2['perms'] == 'rw-r--r--', 'misparsed perms') self.failUnless(file2['owner'] == 'root', 'misparsed owner') self.failUnless(file2['group'] == 'other', 'misparsed group') self.failUnless(file2['size'] == 1, 'misparsed size') self.failUnless(file2['date'] == 'Jan 29 03:26', 'misparsed date') self.failUnless(file2['filename'] == 'B', 'misparsed filename') self.failUnless(file2['nlinks'] == 1, 'misparsed nlinks') self.failUnless(file2['linktarget'] == 'A', 'misparsed linktarget') def testUnknownLine(self): files, others = self.getFilesForLines(['ABC', 'not a file']) self.failIf(files, 'unexpected file entries') self.failUnless(others == ['ABC\r', 'not a file\r'], 'incorrect unparsable lines: %s' % repr(others)) def testYear(self): # This example derived from bug description in issue 514. fileList = ftp.FTPFileListProtocol() class PrintLine(protocol.Protocol): def connectionMade(self): self.transport.write('-rw-r--r-- 1 root other 531 Jan 29 2003 README\n') self.transport.loseConnection() loopback.loopback(PrintLine(), fileList) file = fileList.files[0] self.failUnless(file['size'] == 531, 'misparsed fileitem') self.failUnless(file['date'] == 'Jan 29 2003', 'misparsed fileitem') self.failUnless(file['filename'] == 'README', 'misparsed fileitem') class FTPClientTests(unittest.TestCase): def testFailedRETR(self): try: f = protocol.Factory() f.noisy = 0 f.protocol = protocol.Protocol port = reactor.listenTCP(0, f, interface="127.0.0.1") n = port.getHost()[2] # This test data derived from a bug report by ranty on #twisted responses = ['220 ready, dude (vsFTPd 1.0.0: beat me, break me)', # USER anonymous '331 Please specify the password.', # PASS twisted@twistedmatrix.com '230 Login successful. Have fun.', # TYPE I '200 Binary it is, then.', # PASV '227 Entering Passive Mode (127,0,0,1,%d,%d)' % (n>>8, n&0xff), # RETR /file/that/doesnt/exist '550 Failed to open file.'] b = StringIOWithoutClosing() client = ftp.FTPClient(passive=1) client.makeConnection(protocol.FileWrapper(b)) self.writeResponses(client, responses) p = protocol.Protocol() d = client.retrieveFile('/file/that/doesnt/exist', p) d.addCallback(lambda r, self=self: self.fail('Callback incorrectly called: %r' % r)) d.addBoth(lambda ignored,r=reactor: r.crash()) id = reactor.callLater(2, self.timeout) reactor.run() log.flushErrors(ftp.FTPError) try: id.cancel() except: pass finally: try: port.stopListening() reactor.iterate() except: pass def timeout(self): reactor.crash() self.fail('Timed out') def writeResponses(self, protocol, responses): for response in responses: reactor.callLater(0.1, protocol.lineReceived, response) def testErrbacksUponDisconnect(self): ftpClient = ftp.FTPClient() d = ftpClient.list('some path', Dummy()) m = [] def _eb(failure): m.append(failure) return None d.addErrback(_eb) from twisted.internet.main import CONNECTION_LOST ftpClient.connectionLost(failure.Failure(CONNECTION_LOST)) self.failUnless(1, len(m))