1154 lines
42 KiB
Python
1154 lines
42 KiB
Python
"""Test script for ftplib module."""
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# Modified by Giampaolo Rodola' to test FTP class, IPv6 and TLS
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# environment
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import ftplib
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import asyncore
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import asynchat
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import socket
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import io
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import errno
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import os
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import threading
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import time
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try:
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import ssl
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except ImportError:
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ssl = None
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from unittest import TestCase, skipUnless
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from test import support
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from test.support import socket_helper
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from test.support.socket_helper import HOST, HOSTv6
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TIMEOUT = support.LOOPBACK_TIMEOUT
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DEFAULT_ENCODING = 'utf-8'
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# the dummy data returned by server over the data channel when
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# RETR, LIST, NLST, MLSD commands are issued
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RETR_DATA = 'abcde12345\r\n' * 1000 + 'non-ascii char \xAE\r\n'
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LIST_DATA = 'foo\r\nbar\r\n non-ascii char \xAE\r\n'
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NLST_DATA = 'foo\r\nbar\r\n non-ascii char \xAE\r\n'
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MLSD_DATA = ("type=cdir;perm=el;unique==keVO1+ZF4; test\r\n"
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"type=pdir;perm=e;unique==keVO1+d?3; ..\r\n"
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"type=OS.unix=slink:/foobar;perm=;unique==keVO1+4G4; foobar\r\n"
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"type=OS.unix=chr-13/29;perm=;unique==keVO1+5G4; device\r\n"
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"type=OS.unix=blk-11/108;perm=;unique==keVO1+6G4; block\r\n"
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"type=file;perm=awr;unique==keVO1+8G4; writable\r\n"
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"type=dir;perm=cpmel;unique==keVO1+7G4; promiscuous\r\n"
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"type=dir;perm=;unique==keVO1+1t2; no-exec\r\n"
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"type=file;perm=r;unique==keVO1+EG4; two words\r\n"
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"type=file;perm=r;unique==keVO1+IH4; leading space\r\n"
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"type=file;perm=r;unique==keVO1+1G4; file1\r\n"
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"type=dir;perm=cpmel;unique==keVO1+7G4; incoming\r\n"
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"type=file;perm=r;unique==keVO1+1G4; file2\r\n"
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"type=file;perm=r;unique==keVO1+1G4; file3\r\n"
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"type=file;perm=r;unique==keVO1+1G4; file4\r\n"
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"type=dir;perm=cpmel;unique==SGP1; dir \xAE non-ascii char\r\n"
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"type=file;perm=r;unique==SGP2; file \xAE non-ascii char\r\n")
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class DummyDTPHandler(asynchat.async_chat):
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dtp_conn_closed = False
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def __init__(self, conn, baseclass):
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asynchat.async_chat.__init__(self, conn)
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self.baseclass = baseclass
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self.baseclass.last_received_data = ''
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self.encoding = baseclass.encoding
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def handle_read(self):
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new_data = self.recv(1024).decode(self.encoding, 'replace')
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self.baseclass.last_received_data += new_data
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def handle_close(self):
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# XXX: this method can be called many times in a row for a single
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# connection, including in clear-text (non-TLS) mode.
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# (behaviour witnessed with test_data_connection)
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if not self.dtp_conn_closed:
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self.baseclass.push('226 transfer complete')
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self.close()
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self.dtp_conn_closed = True
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def push(self, what):
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if self.baseclass.next_data is not None:
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what = self.baseclass.next_data
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self.baseclass.next_data = None
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if not what:
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return self.close_when_done()
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super(DummyDTPHandler, self).push(what.encode(self.encoding))
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def handle_error(self):
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raise Exception
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class DummyFTPHandler(asynchat.async_chat):
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dtp_handler = DummyDTPHandler
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def __init__(self, conn, encoding=DEFAULT_ENCODING):
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asynchat.async_chat.__init__(self, conn)
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# tells the socket to handle urgent data inline (ABOR command)
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self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_OOBINLINE, 1)
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self.set_terminator(b"\r\n")
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self.in_buffer = []
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self.dtp = None
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self.last_received_cmd = None
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self.last_received_data = ''
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self.next_response = ''
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self.next_data = None
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self.rest = None
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self.next_retr_data = RETR_DATA
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self.push('220 welcome')
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self.encoding = encoding
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# We use this as the string IPv4 address to direct the client
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# to in response to a PASV command. To test security behavior.
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# https://bugs.python.org/issue43285/.
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self.fake_pasv_server_ip = '252.253.254.255'
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def collect_incoming_data(self, data):
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self.in_buffer.append(data)
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def found_terminator(self):
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line = b''.join(self.in_buffer).decode(self.encoding)
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self.in_buffer = []
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if self.next_response:
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self.push(self.next_response)
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self.next_response = ''
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cmd = line.split(' ')[0].lower()
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self.last_received_cmd = cmd
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space = line.find(' ')
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if space != -1:
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arg = line[space + 1:]
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else:
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arg = ""
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if hasattr(self, 'cmd_' + cmd):
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method = getattr(self, 'cmd_' + cmd)
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method(arg)
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else:
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self.push('550 command "%s" not understood.' %cmd)
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def handle_error(self):
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raise Exception
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def push(self, data):
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asynchat.async_chat.push(self, data.encode(self.encoding) + b'\r\n')
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def cmd_port(self, arg):
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addr = list(map(int, arg.split(',')))
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ip = '%d.%d.%d.%d' %tuple(addr[:4])
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port = (addr[4] * 256) + addr[5]
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s = socket.create_connection((ip, port), timeout=TIMEOUT)
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self.dtp = self.dtp_handler(s, baseclass=self)
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self.push('200 active data connection established')
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def cmd_pasv(self, arg):
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with socket.create_server((self.socket.getsockname()[0], 0)) as sock:
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sock.settimeout(TIMEOUT)
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port = sock.getsockname()[1]
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ip = self.fake_pasv_server_ip
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ip = ip.replace('.', ','); p1 = port / 256; p2 = port % 256
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self.push('227 entering passive mode (%s,%d,%d)' %(ip, p1, p2))
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conn, addr = sock.accept()
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self.dtp = self.dtp_handler(conn, baseclass=self)
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def cmd_eprt(self, arg):
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af, ip, port = arg.split(arg[0])[1:-1]
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port = int(port)
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s = socket.create_connection((ip, port), timeout=TIMEOUT)
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self.dtp = self.dtp_handler(s, baseclass=self)
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self.push('200 active data connection established')
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def cmd_epsv(self, arg):
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with socket.create_server((self.socket.getsockname()[0], 0),
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family=socket.AF_INET6) as sock:
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sock.settimeout(TIMEOUT)
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port = sock.getsockname()[1]
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self.push('229 entering extended passive mode (|||%d|)' %port)
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conn, addr = sock.accept()
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self.dtp = self.dtp_handler(conn, baseclass=self)
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def cmd_echo(self, arg):
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# sends back the received string (used by the test suite)
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self.push(arg)
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def cmd_noop(self, arg):
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self.push('200 noop ok')
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def cmd_user(self, arg):
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self.push('331 username ok')
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def cmd_pass(self, arg):
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self.push('230 password ok')
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def cmd_acct(self, arg):
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self.push('230 acct ok')
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def cmd_rnfr(self, arg):
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self.push('350 rnfr ok')
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def cmd_rnto(self, arg):
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self.push('250 rnto ok')
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def cmd_dele(self, arg):
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self.push('250 dele ok')
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def cmd_cwd(self, arg):
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self.push('250 cwd ok')
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def cmd_size(self, arg):
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self.push('250 1000')
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def cmd_mkd(self, arg):
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self.push('257 "%s"' %arg)
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def cmd_rmd(self, arg):
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self.push('250 rmd ok')
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def cmd_pwd(self, arg):
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self.push('257 "pwd ok"')
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def cmd_type(self, arg):
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self.push('200 type ok')
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def cmd_quit(self, arg):
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self.push('221 quit ok')
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self.close()
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def cmd_abor(self, arg):
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self.push('226 abor ok')
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def cmd_stor(self, arg):
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self.push('125 stor ok')
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def cmd_rest(self, arg):
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self.rest = arg
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self.push('350 rest ok')
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def cmd_retr(self, arg):
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self.push('125 retr ok')
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if self.rest is not None:
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offset = int(self.rest)
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else:
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offset = 0
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self.dtp.push(self.next_retr_data[offset:])
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self.dtp.close_when_done()
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self.rest = None
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def cmd_list(self, arg):
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self.push('125 list ok')
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self.dtp.push(LIST_DATA)
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self.dtp.close_when_done()
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def cmd_nlst(self, arg):
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self.push('125 nlst ok')
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self.dtp.push(NLST_DATA)
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self.dtp.close_when_done()
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def cmd_opts(self, arg):
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self.push('200 opts ok')
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def cmd_mlsd(self, arg):
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self.push('125 mlsd ok')
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self.dtp.push(MLSD_DATA)
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self.dtp.close_when_done()
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def cmd_setlongretr(self, arg):
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# For testing. Next RETR will return long line.
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self.next_retr_data = 'x' * int(arg)
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self.push('125 setlongretr ok')
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class DummyFTPServer(asyncore.dispatcher, threading.Thread):
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handler = DummyFTPHandler
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def __init__(self, address, af=socket.AF_INET, encoding=DEFAULT_ENCODING):
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threading.Thread.__init__(self)
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asyncore.dispatcher.__init__(self)
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self.daemon = True
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self.create_socket(af, socket.SOCK_STREAM)
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self.bind(address)
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self.listen(5)
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self.active = False
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self.active_lock = threading.Lock()
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self.host, self.port = self.socket.getsockname()[:2]
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self.handler_instance = None
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self.encoding = encoding
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def start(self):
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assert not self.active
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self.__flag = threading.Event()
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threading.Thread.start(self)
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self.__flag.wait()
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def run(self):
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self.active = True
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self.__flag.set()
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while self.active and asyncore.socket_map:
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self.active_lock.acquire()
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asyncore.loop(timeout=0.1, count=1)
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self.active_lock.release()
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asyncore.close_all(ignore_all=True)
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def stop(self):
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assert self.active
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self.active = False
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self.join()
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def handle_accepted(self, conn, addr):
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self.handler_instance = self.handler(conn, encoding=self.encoding)
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def handle_connect(self):
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self.close()
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handle_read = handle_connect
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def writable(self):
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return 0
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def handle_error(self):
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raise Exception
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if ssl is not None:
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CERTFILE = os.path.join(os.path.dirname(__file__), "keycert3.pem")
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CAFILE = os.path.join(os.path.dirname(__file__), "pycacert.pem")
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class SSLConnection(asyncore.dispatcher):
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"""An asyncore.dispatcher subclass supporting TLS/SSL."""
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_ssl_accepting = False
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_ssl_closing = False
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def secure_connection(self):
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context = ssl.SSLContext()
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context.load_cert_chain(CERTFILE)
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socket = context.wrap_socket(self.socket,
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suppress_ragged_eofs=False,
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server_side=True,
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do_handshake_on_connect=False)
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self.del_channel()
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self.set_socket(socket)
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self._ssl_accepting = True
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def _do_ssl_handshake(self):
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try:
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self.socket.do_handshake()
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except ssl.SSLError as err:
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if err.args[0] in (ssl.SSL_ERROR_WANT_READ,
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ssl.SSL_ERROR_WANT_WRITE):
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return
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elif err.args[0] == ssl.SSL_ERROR_EOF:
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return self.handle_close()
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# TODO: SSLError does not expose alert information
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elif "SSLV3_ALERT_BAD_CERTIFICATE" in err.args[1]:
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return self.handle_close()
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raise
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except OSError as err:
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if err.args[0] == errno.ECONNABORTED:
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return self.handle_close()
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else:
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self._ssl_accepting = False
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def _do_ssl_shutdown(self):
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self._ssl_closing = True
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try:
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self.socket = self.socket.unwrap()
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except ssl.SSLError as err:
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if err.args[0] in (ssl.SSL_ERROR_WANT_READ,
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ssl.SSL_ERROR_WANT_WRITE):
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return
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except OSError:
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# Any "socket error" corresponds to a SSL_ERROR_SYSCALL return
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# from OpenSSL's SSL_shutdown(), corresponding to a
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# closed socket condition. See also:
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# http://www.mail-archive.com/openssl-users@openssl.org/msg60710.html
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pass
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self._ssl_closing = False
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if getattr(self, '_ccc', False) is False:
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super(SSLConnection, self).close()
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else:
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pass
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def handle_read_event(self):
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if self._ssl_accepting:
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self._do_ssl_handshake()
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elif self._ssl_closing:
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self._do_ssl_shutdown()
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else:
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super(SSLConnection, self).handle_read_event()
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def handle_write_event(self):
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if self._ssl_accepting:
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self._do_ssl_handshake()
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elif self._ssl_closing:
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self._do_ssl_shutdown()
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else:
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super(SSLConnection, self).handle_write_event()
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def send(self, data):
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try:
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return super(SSLConnection, self).send(data)
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except ssl.SSLError as err:
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if err.args[0] in (ssl.SSL_ERROR_EOF, ssl.SSL_ERROR_ZERO_RETURN,
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ssl.SSL_ERROR_WANT_READ,
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ssl.SSL_ERROR_WANT_WRITE):
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return 0
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raise
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def recv(self, buffer_size):
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try:
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return super(SSLConnection, self).recv(buffer_size)
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except ssl.SSLError as err:
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if err.args[0] in (ssl.SSL_ERROR_WANT_READ,
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ssl.SSL_ERROR_WANT_WRITE):
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return b''
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if err.args[0] in (ssl.SSL_ERROR_EOF, ssl.SSL_ERROR_ZERO_RETURN):
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self.handle_close()
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return b''
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raise
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def handle_error(self):
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raise Exception
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def close(self):
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if (isinstance(self.socket, ssl.SSLSocket) and
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self.socket._sslobj is not None):
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self._do_ssl_shutdown()
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else:
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super(SSLConnection, self).close()
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class DummyTLS_DTPHandler(SSLConnection, DummyDTPHandler):
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"""A DummyDTPHandler subclass supporting TLS/SSL."""
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def __init__(self, conn, baseclass):
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DummyDTPHandler.__init__(self, conn, baseclass)
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if self.baseclass.secure_data_channel:
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self.secure_connection()
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class DummyTLS_FTPHandler(SSLConnection, DummyFTPHandler):
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"""A DummyFTPHandler subclass supporting TLS/SSL."""
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dtp_handler = DummyTLS_DTPHandler
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def __init__(self, conn, encoding=DEFAULT_ENCODING):
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DummyFTPHandler.__init__(self, conn, encoding=encoding)
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self.secure_data_channel = False
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self._ccc = False
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def cmd_auth(self, line):
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"""Set up secure control channel."""
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self.push('234 AUTH TLS successful')
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self.secure_connection()
|
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def cmd_ccc(self, line):
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self.push('220 Reverting back to clear-text')
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self._ccc = True
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self._do_ssl_shutdown()
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def cmd_pbsz(self, line):
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"""Negotiate size of buffer for secure data transfer.
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|
For TLS/SSL the only valid value for the parameter is '0'.
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Any other value is accepted but ignored.
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"""
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self.push('200 PBSZ=0 successful.')
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|
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def cmd_prot(self, line):
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"""Setup un/secure data channel."""
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arg = line.upper()
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if arg == 'C':
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self.push('200 Protection set to Clear')
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self.secure_data_channel = False
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elif arg == 'P':
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self.push('200 Protection set to Private')
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self.secure_data_channel = True
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else:
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self.push("502 Unrecognized PROT type (use C or P).")
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|
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class DummyTLS_FTPServer(DummyFTPServer):
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handler = DummyTLS_FTPHandler
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class TestFTPClass(TestCase):
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def setUp(self, encoding=DEFAULT_ENCODING):
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self.server = DummyFTPServer((HOST, 0), encoding=encoding)
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self.server.start()
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self.client = ftplib.FTP(timeout=TIMEOUT, encoding=encoding)
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self.client.connect(self.server.host, self.server.port)
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|
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def tearDown(self):
|
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self.client.close()
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self.server.stop()
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# Explicitly clear the attribute to prevent dangling thread
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self.server = None
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asyncore.close_all(ignore_all=True)
|
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|
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def check_data(self, received, expected):
|
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self.assertEqual(len(received), len(expected))
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self.assertEqual(received, expected)
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|
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def test_getwelcome(self):
|
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self.assertEqual(self.client.getwelcome(), '220 welcome')
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|
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def test_sanitize(self):
|
|
self.assertEqual(self.client.sanitize('foo'), repr('foo'))
|
|
self.assertEqual(self.client.sanitize('pass 12345'), repr('pass *****'))
|
|
self.assertEqual(self.client.sanitize('PASS 12345'), repr('PASS *****'))
|
|
|
|
def test_exceptions(self):
|
|
self.assertRaises(ValueError, self.client.sendcmd, 'echo 40\r\n0')
|
|
self.assertRaises(ValueError, self.client.sendcmd, 'echo 40\n0')
|
|
self.assertRaises(ValueError, self.client.sendcmd, 'echo 40\r0')
|
|
self.assertRaises(ftplib.error_temp, self.client.sendcmd, 'echo 400')
|
|
self.assertRaises(ftplib.error_temp, self.client.sendcmd, 'echo 499')
|
|
self.assertRaises(ftplib.error_perm, self.client.sendcmd, 'echo 500')
|
|
self.assertRaises(ftplib.error_perm, self.client.sendcmd, 'echo 599')
|
|
self.assertRaises(ftplib.error_proto, self.client.sendcmd, 'echo 999')
|
|
|
|
def test_all_errors(self):
|
|
exceptions = (ftplib.error_reply, ftplib.error_temp, ftplib.error_perm,
|
|
ftplib.error_proto, ftplib.Error, OSError,
|
|
EOFError)
|
|
for x in exceptions:
|
|
try:
|
|
raise x('exception not included in all_errors set')
|
|
except ftplib.all_errors:
|
|
pass
|
|
|
|
def test_set_pasv(self):
|
|
# passive mode is supposed to be enabled by default
|
|
self.assertTrue(self.client.passiveserver)
|
|
self.client.set_pasv(True)
|
|
self.assertTrue(self.client.passiveserver)
|
|
self.client.set_pasv(False)
|
|
self.assertFalse(self.client.passiveserver)
|
|
|
|
def test_voidcmd(self):
|
|
self.client.voidcmd('echo 200')
|
|
self.client.voidcmd('echo 299')
|
|
self.assertRaises(ftplib.error_reply, self.client.voidcmd, 'echo 199')
|
|
self.assertRaises(ftplib.error_reply, self.client.voidcmd, 'echo 300')
|
|
|
|
def test_login(self):
|
|
self.client.login()
|
|
|
|
def test_acct(self):
|
|
self.client.acct('passwd')
|
|
|
|
def test_rename(self):
|
|
self.client.rename('a', 'b')
|
|
self.server.handler_instance.next_response = '200'
|
|
self.assertRaises(ftplib.error_reply, self.client.rename, 'a', 'b')
|
|
|
|
def test_delete(self):
|
|
self.client.delete('foo')
|
|
self.server.handler_instance.next_response = '199'
|
|
self.assertRaises(ftplib.error_reply, self.client.delete, 'foo')
|
|
|
|
def test_size(self):
|
|
self.client.size('foo')
|
|
|
|
def test_mkd(self):
|
|
dir = self.client.mkd('/foo')
|
|
self.assertEqual(dir, '/foo')
|
|
|
|
def test_rmd(self):
|
|
self.client.rmd('foo')
|
|
|
|
def test_cwd(self):
|
|
dir = self.client.cwd('/foo')
|
|
self.assertEqual(dir, '250 cwd ok')
|
|
|
|
def test_pwd(self):
|
|
dir = self.client.pwd()
|
|
self.assertEqual(dir, 'pwd ok')
|
|
|
|
def test_quit(self):
|
|
self.assertEqual(self.client.quit(), '221 quit ok')
|
|
# Ensure the connection gets closed; sock attribute should be None
|
|
self.assertEqual(self.client.sock, None)
|
|
|
|
def test_abort(self):
|
|
self.client.abort()
|
|
|
|
def test_retrbinary(self):
|
|
def callback(data):
|
|
received.append(data.decode(self.client.encoding))
|
|
received = []
|
|
self.client.retrbinary('retr', callback)
|
|
self.check_data(''.join(received), RETR_DATA)
|
|
|
|
def test_retrbinary_rest(self):
|
|
def callback(data):
|
|
received.append(data.decode(self.client.encoding))
|
|
for rest in (0, 10, 20):
|
|
received = []
|
|
self.client.retrbinary('retr', callback, rest=rest)
|
|
self.check_data(''.join(received), RETR_DATA[rest:])
|
|
|
|
def test_retrlines(self):
|
|
received = []
|
|
self.client.retrlines('retr', received.append)
|
|
self.check_data(''.join(received), RETR_DATA.replace('\r\n', ''))
|
|
|
|
def test_storbinary(self):
|
|
f = io.BytesIO(RETR_DATA.encode(self.client.encoding))
|
|
self.client.storbinary('stor', f)
|
|
self.check_data(self.server.handler_instance.last_received_data, RETR_DATA)
|
|
# test new callback arg
|
|
flag = []
|
|
f.seek(0)
|
|
self.client.storbinary('stor', f, callback=lambda x: flag.append(None))
|
|
self.assertTrue(flag)
|
|
|
|
def test_storbinary_rest(self):
|
|
data = RETR_DATA.replace('\r\n', '\n').encode(self.client.encoding)
|
|
f = io.BytesIO(data)
|
|
for r in (30, '30'):
|
|
f.seek(0)
|
|
self.client.storbinary('stor', f, rest=r)
|
|
self.assertEqual(self.server.handler_instance.rest, str(r))
|
|
|
|
def test_storlines(self):
|
|
data = RETR_DATA.replace('\r\n', '\n').encode(self.client.encoding)
|
|
f = io.BytesIO(data)
|
|
self.client.storlines('stor', f)
|
|
self.check_data(self.server.handler_instance.last_received_data, RETR_DATA)
|
|
# test new callback arg
|
|
flag = []
|
|
f.seek(0)
|
|
self.client.storlines('stor foo', f, callback=lambda x: flag.append(None))
|
|
self.assertTrue(flag)
|
|
|
|
f = io.StringIO(RETR_DATA.replace('\r\n', '\n'))
|
|
# storlines() expects a binary file, not a text file
|
|
with support.check_warnings(('', BytesWarning), quiet=True):
|
|
self.assertRaises(TypeError, self.client.storlines, 'stor foo', f)
|
|
|
|
def test_nlst(self):
|
|
self.client.nlst()
|
|
self.assertEqual(self.client.nlst(), NLST_DATA.split('\r\n')[:-1])
|
|
|
|
def test_dir(self):
|
|
l = []
|
|
self.client.dir(lambda x: l.append(x))
|
|
self.assertEqual(''.join(l), LIST_DATA.replace('\r\n', ''))
|
|
|
|
def test_mlsd(self):
|
|
list(self.client.mlsd())
|
|
list(self.client.mlsd(path='/'))
|
|
list(self.client.mlsd(path='/', facts=['size', 'type']))
|
|
|
|
ls = list(self.client.mlsd())
|
|
for name, facts in ls:
|
|
self.assertIsInstance(name, str)
|
|
self.assertIsInstance(facts, dict)
|
|
self.assertTrue(name)
|
|
self.assertIn('type', facts)
|
|
self.assertIn('perm', facts)
|
|
self.assertIn('unique', facts)
|
|
|
|
def set_data(data):
|
|
self.server.handler_instance.next_data = data
|
|
|
|
def test_entry(line, type=None, perm=None, unique=None, name=None):
|
|
type = 'type' if type is None else type
|
|
perm = 'perm' if perm is None else perm
|
|
unique = 'unique' if unique is None else unique
|
|
name = 'name' if name is None else name
|
|
set_data(line)
|
|
_name, facts = next(self.client.mlsd())
|
|
self.assertEqual(_name, name)
|
|
self.assertEqual(facts['type'], type)
|
|
self.assertEqual(facts['perm'], perm)
|
|
self.assertEqual(facts['unique'], unique)
|
|
|
|
# plain
|
|
test_entry('type=type;perm=perm;unique=unique; name\r\n')
|
|
# "=" in fact value
|
|
test_entry('type=ty=pe;perm=perm;unique=unique; name\r\n', type="ty=pe")
|
|
test_entry('type==type;perm=perm;unique=unique; name\r\n', type="=type")
|
|
test_entry('type=t=y=pe;perm=perm;unique=unique; name\r\n', type="t=y=pe")
|
|
test_entry('type=====;perm=perm;unique=unique; name\r\n', type="====")
|
|
# spaces in name
|
|
test_entry('type=type;perm=perm;unique=unique; na me\r\n', name="na me")
|
|
test_entry('type=type;perm=perm;unique=unique; name \r\n', name="name ")
|
|
test_entry('type=type;perm=perm;unique=unique; name\r\n', name=" name")
|
|
test_entry('type=type;perm=perm;unique=unique; n am e\r\n', name="n am e")
|
|
# ";" in name
|
|
test_entry('type=type;perm=perm;unique=unique; na;me\r\n', name="na;me")
|
|
test_entry('type=type;perm=perm;unique=unique; ;name\r\n', name=";name")
|
|
test_entry('type=type;perm=perm;unique=unique; ;name;\r\n', name=";name;")
|
|
test_entry('type=type;perm=perm;unique=unique; ;;;;\r\n', name=";;;;")
|
|
# case sensitiveness
|
|
set_data('Type=type;TyPe=perm;UNIQUE=unique; name\r\n')
|
|
_name, facts = next(self.client.mlsd())
|
|
for x in facts:
|
|
self.assertTrue(x.islower())
|
|
# no data (directory empty)
|
|
set_data('')
|
|
self.assertRaises(StopIteration, next, self.client.mlsd())
|
|
set_data('')
|
|
for x in self.client.mlsd():
|
|
self.fail("unexpected data %s" % x)
|
|
|
|
def test_makeport(self):
|
|
with self.client.makeport():
|
|
# IPv4 is in use, just make sure send_eprt has not been used
|
|
self.assertEqual(self.server.handler_instance.last_received_cmd,
|
|
'port')
|
|
|
|
def test_makepasv(self):
|
|
host, port = self.client.makepasv()
|
|
conn = socket.create_connection((host, port), timeout=TIMEOUT)
|
|
conn.close()
|
|
# IPv4 is in use, just make sure send_epsv has not been used
|
|
self.assertEqual(self.server.handler_instance.last_received_cmd, 'pasv')
|
|
|
|
def test_makepasv_issue43285_security_disabled(self):
|
|
"""Test the opt-in to the old vulnerable behavior."""
|
|
self.client.trust_server_pasv_ipv4_address = True
|
|
bad_host, port = self.client.makepasv()
|
|
self.assertEqual(
|
|
bad_host, self.server.handler_instance.fake_pasv_server_ip)
|
|
# Opening and closing a connection keeps the dummy server happy
|
|
# instead of timing out on accept.
|
|
socket.create_connection((self.client.sock.getpeername()[0], port),
|
|
timeout=TIMEOUT).close()
|
|
|
|
def test_makepasv_issue43285_security_enabled_default(self):
|
|
self.assertFalse(self.client.trust_server_pasv_ipv4_address)
|
|
trusted_host, port = self.client.makepasv()
|
|
self.assertNotEqual(
|
|
trusted_host, self.server.handler_instance.fake_pasv_server_ip)
|
|
# Opening and closing a connection keeps the dummy server happy
|
|
# instead of timing out on accept.
|
|
socket.create_connection((trusted_host, port), timeout=TIMEOUT).close()
|
|
|
|
def test_with_statement(self):
|
|
self.client.quit()
|
|
|
|
def is_client_connected():
|
|
if self.client.sock is None:
|
|
return False
|
|
try:
|
|
self.client.sendcmd('noop')
|
|
except (OSError, EOFError):
|
|
return False
|
|
return True
|
|
|
|
# base test
|
|
with ftplib.FTP(timeout=TIMEOUT) as self.client:
|
|
self.client.connect(self.server.host, self.server.port)
|
|
self.client.sendcmd('noop')
|
|
self.assertTrue(is_client_connected())
|
|
self.assertEqual(self.server.handler_instance.last_received_cmd, 'quit')
|
|
self.assertFalse(is_client_connected())
|
|
|
|
# QUIT sent inside the with block
|
|
with ftplib.FTP(timeout=TIMEOUT) as self.client:
|
|
self.client.connect(self.server.host, self.server.port)
|
|
self.client.sendcmd('noop')
|
|
self.client.quit()
|
|
self.assertEqual(self.server.handler_instance.last_received_cmd, 'quit')
|
|
self.assertFalse(is_client_connected())
|
|
|
|
# force a wrong response code to be sent on QUIT: error_perm
|
|
# is expected and the connection is supposed to be closed
|
|
try:
|
|
with ftplib.FTP(timeout=TIMEOUT) as self.client:
|
|
self.client.connect(self.server.host, self.server.port)
|
|
self.client.sendcmd('noop')
|
|
self.server.handler_instance.next_response = '550 error on quit'
|
|
except ftplib.error_perm as err:
|
|
self.assertEqual(str(err), '550 error on quit')
|
|
else:
|
|
self.fail('Exception not raised')
|
|
# needed to give the threaded server some time to set the attribute
|
|
# which otherwise would still be == 'noop'
|
|
time.sleep(0.1)
|
|
self.assertEqual(self.server.handler_instance.last_received_cmd, 'quit')
|
|
self.assertFalse(is_client_connected())
|
|
|
|
def test_source_address(self):
|
|
self.client.quit()
|
|
port = socket_helper.find_unused_port()
|
|
try:
|
|
self.client.connect(self.server.host, self.server.port,
|
|
source_address=(HOST, port))
|
|
self.assertEqual(self.client.sock.getsockname()[1], port)
|
|
self.client.quit()
|
|
except OSError as e:
|
|
if e.errno == errno.EADDRINUSE:
|
|
self.skipTest("couldn't bind to port %d" % port)
|
|
raise
|
|
|
|
def test_source_address_passive_connection(self):
|
|
port = socket_helper.find_unused_port()
|
|
self.client.source_address = (HOST, port)
|
|
try:
|
|
with self.client.transfercmd('list') as sock:
|
|
self.assertEqual(sock.getsockname()[1], port)
|
|
except OSError as e:
|
|
if e.errno == errno.EADDRINUSE:
|
|
self.skipTest("couldn't bind to port %d" % port)
|
|
raise
|
|
|
|
def test_parse257(self):
|
|
self.assertEqual(ftplib.parse257('257 "/foo/bar"'), '/foo/bar')
|
|
self.assertEqual(ftplib.parse257('257 "/foo/bar" created'), '/foo/bar')
|
|
self.assertEqual(ftplib.parse257('257 ""'), '')
|
|
self.assertEqual(ftplib.parse257('257 "" created'), '')
|
|
self.assertRaises(ftplib.error_reply, ftplib.parse257, '250 "/foo/bar"')
|
|
# The 257 response is supposed to include the directory
|
|
# name and in case it contains embedded double-quotes
|
|
# they must be doubled (see RFC-959, chapter 7, appendix 2).
|
|
self.assertEqual(ftplib.parse257('257 "/foo/b""ar"'), '/foo/b"ar')
|
|
self.assertEqual(ftplib.parse257('257 "/foo/b""ar" created'), '/foo/b"ar')
|
|
|
|
def test_line_too_long(self):
|
|
self.assertRaises(ftplib.Error, self.client.sendcmd,
|
|
'x' * self.client.maxline * 2)
|
|
|
|
def test_retrlines_too_long(self):
|
|
self.client.sendcmd('SETLONGRETR %d' % (self.client.maxline * 2))
|
|
received = []
|
|
self.assertRaises(ftplib.Error,
|
|
self.client.retrlines, 'retr', received.append)
|
|
|
|
def test_storlines_too_long(self):
|
|
f = io.BytesIO(b'x' * self.client.maxline * 2)
|
|
self.assertRaises(ftplib.Error, self.client.storlines, 'stor', f)
|
|
|
|
def test_encoding_param(self):
|
|
encodings = ['latin-1', 'utf-8']
|
|
for encoding in encodings:
|
|
with self.subTest(encoding=encoding):
|
|
self.tearDown()
|
|
self.setUp(encoding=encoding)
|
|
self.assertEqual(encoding, self.client.encoding)
|
|
self.test_retrbinary()
|
|
self.test_storbinary()
|
|
self.test_retrlines()
|
|
new_dir = self.client.mkd('/non-ascii dir \xAE')
|
|
self.check_data(new_dir, '/non-ascii dir \xAE')
|
|
# Check default encoding
|
|
client = ftplib.FTP(timeout=TIMEOUT)
|
|
self.assertEqual(DEFAULT_ENCODING, client.encoding)
|
|
|
|
|
|
@skipUnless(socket_helper.IPV6_ENABLED, "IPv6 not enabled")
|
|
class TestIPv6Environment(TestCase):
|
|
|
|
def setUp(self):
|
|
self.server = DummyFTPServer((HOSTv6, 0),
|
|
af=socket.AF_INET6,
|
|
encoding=DEFAULT_ENCODING)
|
|
self.server.start()
|
|
self.client = ftplib.FTP(timeout=TIMEOUT, encoding=DEFAULT_ENCODING)
|
|
self.client.connect(self.server.host, self.server.port)
|
|
|
|
def tearDown(self):
|
|
self.client.close()
|
|
self.server.stop()
|
|
# Explicitly clear the attribute to prevent dangling thread
|
|
self.server = None
|
|
asyncore.close_all(ignore_all=True)
|
|
|
|
def test_af(self):
|
|
self.assertEqual(self.client.af, socket.AF_INET6)
|
|
|
|
def test_makeport(self):
|
|
with self.client.makeport():
|
|
self.assertEqual(self.server.handler_instance.last_received_cmd,
|
|
'eprt')
|
|
|
|
def test_makepasv(self):
|
|
host, port = self.client.makepasv()
|
|
conn = socket.create_connection((host, port), timeout=TIMEOUT)
|
|
conn.close()
|
|
self.assertEqual(self.server.handler_instance.last_received_cmd, 'epsv')
|
|
|
|
def test_transfer(self):
|
|
def retr():
|
|
def callback(data):
|
|
received.append(data.decode(self.client.encoding))
|
|
received = []
|
|
self.client.retrbinary('retr', callback)
|
|
self.assertEqual(len(''.join(received)), len(RETR_DATA))
|
|
self.assertEqual(''.join(received), RETR_DATA)
|
|
self.client.set_pasv(True)
|
|
retr()
|
|
self.client.set_pasv(False)
|
|
retr()
|
|
|
|
|
|
@skipUnless(ssl, "SSL not available")
|
|
class TestTLS_FTPClassMixin(TestFTPClass):
|
|
"""Repeat TestFTPClass tests starting the TLS layer for both control
|
|
and data connections first.
|
|
"""
|
|
|
|
def setUp(self, encoding=DEFAULT_ENCODING):
|
|
self.server = DummyTLS_FTPServer((HOST, 0), encoding=encoding)
|
|
self.server.start()
|
|
self.client = ftplib.FTP_TLS(timeout=TIMEOUT, encoding=encoding)
|
|
self.client.connect(self.server.host, self.server.port)
|
|
# enable TLS
|
|
self.client.auth()
|
|
self.client.prot_p()
|
|
|
|
|
|
@skipUnless(ssl, "SSL not available")
|
|
class TestTLS_FTPClass(TestCase):
|
|
"""Specific TLS_FTP class tests."""
|
|
|
|
def setUp(self, encoding=DEFAULT_ENCODING):
|
|
self.server = DummyTLS_FTPServer((HOST, 0), encoding=encoding)
|
|
self.server.start()
|
|
self.client = ftplib.FTP_TLS(timeout=TIMEOUT)
|
|
self.client.connect(self.server.host, self.server.port)
|
|
|
|
def tearDown(self):
|
|
self.client.close()
|
|
self.server.stop()
|
|
# Explicitly clear the attribute to prevent dangling thread
|
|
self.server = None
|
|
asyncore.close_all(ignore_all=True)
|
|
|
|
def test_control_connection(self):
|
|
self.assertNotIsInstance(self.client.sock, ssl.SSLSocket)
|
|
self.client.auth()
|
|
self.assertIsInstance(self.client.sock, ssl.SSLSocket)
|
|
|
|
def test_data_connection(self):
|
|
# clear text
|
|
with self.client.transfercmd('list') as sock:
|
|
self.assertNotIsInstance(sock, ssl.SSLSocket)
|
|
self.assertEqual(sock.recv(1024),
|
|
LIST_DATA.encode(self.client.encoding))
|
|
self.assertEqual(self.client.voidresp(), "226 transfer complete")
|
|
|
|
# secured, after PROT P
|
|
self.client.prot_p()
|
|
with self.client.transfercmd('list') as sock:
|
|
self.assertIsInstance(sock, ssl.SSLSocket)
|
|
# consume from SSL socket to finalize handshake and avoid
|
|
# "SSLError [SSL] shutdown while in init"
|
|
self.assertEqual(sock.recv(1024),
|
|
LIST_DATA.encode(self.client.encoding))
|
|
self.assertEqual(self.client.voidresp(), "226 transfer complete")
|
|
|
|
# PROT C is issued, the connection must be in cleartext again
|
|
self.client.prot_c()
|
|
with self.client.transfercmd('list') as sock:
|
|
self.assertNotIsInstance(sock, ssl.SSLSocket)
|
|
self.assertEqual(sock.recv(1024),
|
|
LIST_DATA.encode(self.client.encoding))
|
|
self.assertEqual(self.client.voidresp(), "226 transfer complete")
|
|
|
|
def test_login(self):
|
|
# login() is supposed to implicitly secure the control connection
|
|
self.assertNotIsInstance(self.client.sock, ssl.SSLSocket)
|
|
self.client.login()
|
|
self.assertIsInstance(self.client.sock, ssl.SSLSocket)
|
|
# make sure that AUTH TLS doesn't get issued again
|
|
self.client.login()
|
|
|
|
def test_auth_issued_twice(self):
|
|
self.client.auth()
|
|
self.assertRaises(ValueError, self.client.auth)
|
|
|
|
def test_context(self):
|
|
self.client.quit()
|
|
ctx = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
|
|
ctx.check_hostname = False
|
|
ctx.verify_mode = ssl.CERT_NONE
|
|
self.assertRaises(ValueError, ftplib.FTP_TLS, keyfile=CERTFILE,
|
|
context=ctx)
|
|
self.assertRaises(ValueError, ftplib.FTP_TLS, certfile=CERTFILE,
|
|
context=ctx)
|
|
self.assertRaises(ValueError, ftplib.FTP_TLS, certfile=CERTFILE,
|
|
keyfile=CERTFILE, context=ctx)
|
|
|
|
self.client = ftplib.FTP_TLS(context=ctx, timeout=TIMEOUT)
|
|
self.client.connect(self.server.host, self.server.port)
|
|
self.assertNotIsInstance(self.client.sock, ssl.SSLSocket)
|
|
self.client.auth()
|
|
self.assertIs(self.client.sock.context, ctx)
|
|
self.assertIsInstance(self.client.sock, ssl.SSLSocket)
|
|
|
|
self.client.prot_p()
|
|
with self.client.transfercmd('list') as sock:
|
|
self.assertIs(sock.context, ctx)
|
|
self.assertIsInstance(sock, ssl.SSLSocket)
|
|
|
|
def test_ccc(self):
|
|
self.assertRaises(ValueError, self.client.ccc)
|
|
self.client.login(secure=True)
|
|
self.assertIsInstance(self.client.sock, ssl.SSLSocket)
|
|
self.client.ccc()
|
|
self.assertRaises(ValueError, self.client.sock.unwrap)
|
|
|
|
@skipUnless(False, "FIXME: bpo-32706")
|
|
def test_check_hostname(self):
|
|
self.client.quit()
|
|
ctx = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
|
|
self.assertEqual(ctx.verify_mode, ssl.CERT_REQUIRED)
|
|
self.assertEqual(ctx.check_hostname, True)
|
|
ctx.load_verify_locations(CAFILE)
|
|
self.client = ftplib.FTP_TLS(context=ctx, timeout=TIMEOUT)
|
|
|
|
# 127.0.0.1 doesn't match SAN
|
|
self.client.connect(self.server.host, self.server.port)
|
|
with self.assertRaises(ssl.CertificateError):
|
|
self.client.auth()
|
|
# exception quits connection
|
|
|
|
self.client.connect(self.server.host, self.server.port)
|
|
self.client.prot_p()
|
|
with self.assertRaises(ssl.CertificateError):
|
|
with self.client.transfercmd("list") as sock:
|
|
pass
|
|
self.client.quit()
|
|
|
|
self.client.connect("localhost", self.server.port)
|
|
self.client.auth()
|
|
self.client.quit()
|
|
|
|
self.client.connect("localhost", self.server.port)
|
|
self.client.prot_p()
|
|
with self.client.transfercmd("list") as sock:
|
|
pass
|
|
|
|
|
|
class TestTimeouts(TestCase):
|
|
|
|
def setUp(self):
|
|
self.evt = threading.Event()
|
|
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
self.sock.settimeout(20)
|
|
self.port = socket_helper.bind_port(self.sock)
|
|
self.server_thread = threading.Thread(target=self.server)
|
|
self.server_thread.daemon = True
|
|
self.server_thread.start()
|
|
# Wait for the server to be ready.
|
|
self.evt.wait()
|
|
self.evt.clear()
|
|
self.old_port = ftplib.FTP.port
|
|
ftplib.FTP.port = self.port
|
|
|
|
def tearDown(self):
|
|
ftplib.FTP.port = self.old_port
|
|
self.server_thread.join()
|
|
# Explicitly clear the attribute to prevent dangling thread
|
|
self.server_thread = None
|
|
|
|
def server(self):
|
|
# This method sets the evt 3 times:
|
|
# 1) when the connection is ready to be accepted.
|
|
# 2) when it is safe for the caller to close the connection
|
|
# 3) when we have closed the socket
|
|
self.sock.listen()
|
|
# (1) Signal the caller that we are ready to accept the connection.
|
|
self.evt.set()
|
|
try:
|
|
conn, addr = self.sock.accept()
|
|
except socket.timeout:
|
|
pass
|
|
else:
|
|
conn.sendall(b"1 Hola mundo\n")
|
|
conn.shutdown(socket.SHUT_WR)
|
|
# (2) Signal the caller that it is safe to close the socket.
|
|
self.evt.set()
|
|
conn.close()
|
|
finally:
|
|
self.sock.close()
|
|
|
|
def testTimeoutDefault(self):
|
|
# default -- use global socket timeout
|
|
self.assertIsNone(socket.getdefaulttimeout())
|
|
socket.setdefaulttimeout(30)
|
|
try:
|
|
ftp = ftplib.FTP(HOST)
|
|
finally:
|
|
socket.setdefaulttimeout(None)
|
|
self.assertEqual(ftp.sock.gettimeout(), 30)
|
|
self.evt.wait()
|
|
ftp.close()
|
|
|
|
def testTimeoutNone(self):
|
|
# no timeout -- do not use global socket timeout
|
|
self.assertIsNone(socket.getdefaulttimeout())
|
|
socket.setdefaulttimeout(30)
|
|
try:
|
|
ftp = ftplib.FTP(HOST, timeout=None)
|
|
finally:
|
|
socket.setdefaulttimeout(None)
|
|
self.assertIsNone(ftp.sock.gettimeout())
|
|
self.evt.wait()
|
|
ftp.close()
|
|
|
|
def testTimeoutValue(self):
|
|
# a value
|
|
ftp = ftplib.FTP(HOST, timeout=30)
|
|
self.assertEqual(ftp.sock.gettimeout(), 30)
|
|
self.evt.wait()
|
|
ftp.close()
|
|
|
|
# bpo-39259
|
|
with self.assertRaises(ValueError):
|
|
ftplib.FTP(HOST, timeout=0)
|
|
|
|
def testTimeoutConnect(self):
|
|
ftp = ftplib.FTP()
|
|
ftp.connect(HOST, timeout=30)
|
|
self.assertEqual(ftp.sock.gettimeout(), 30)
|
|
self.evt.wait()
|
|
ftp.close()
|
|
|
|
def testTimeoutDifferentOrder(self):
|
|
ftp = ftplib.FTP(timeout=30)
|
|
ftp.connect(HOST)
|
|
self.assertEqual(ftp.sock.gettimeout(), 30)
|
|
self.evt.wait()
|
|
ftp.close()
|
|
|
|
def testTimeoutDirectAccess(self):
|
|
ftp = ftplib.FTP()
|
|
ftp.timeout = 30
|
|
ftp.connect(HOST)
|
|
self.assertEqual(ftp.sock.gettimeout(), 30)
|
|
self.evt.wait()
|
|
ftp.close()
|
|
|
|
|
|
class MiscTestCase(TestCase):
|
|
def test__all__(self):
|
|
blacklist = {'MSG_OOB', 'FTP_PORT', 'MAXLINE', 'CRLF', 'B_CRLF',
|
|
'Error', 'parse150', 'parse227', 'parse229', 'parse257',
|
|
'print_line', 'ftpcp', 'test'}
|
|
support.check__all__(self, ftplib, blacklist=blacklist)
|
|
|
|
|
|
def test_main():
|
|
tests = [TestFTPClass, TestTimeouts,
|
|
TestIPv6Environment,
|
|
TestTLS_FTPClassMixin, TestTLS_FTPClass,
|
|
MiscTestCase]
|
|
|
|
thread_info = support.threading_setup()
|
|
try:
|
|
support.run_unittest(*tests)
|
|
finally:
|
|
support.threading_cleanup(*thread_info)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
test_main()
|