Piers Lauder's IMAP module.

Lib/imaplib.py

+"""IMAP4 client.
+
+Based on RFC 2060.
+
+Author: Piers Lauder <piers@cs.su.oz.au> December 1997.
+
+Public class:		IMAP4
+Public variable:	Debug
+Public functions:	Internaldate2tuple
+			Int2AP
+			ParseFlags
+			Time2Internaldate
+"""
+
+import os, re, socket, string, time
+
+#	Globals
+
+CRLF = '\r\n'
+Debug = 0
+IMAP4_PORT = 143
+
+#	Commands
+
+Commands = {
+	# name		  valid states
+	'APPEND':	('AUTH', 'SELECTED'),
+	'AUTHENTICATE':	('NONAUTH',),
+	'CAPABILITY':	('NONAUTH', 'AUTH', 'SELECTED', 'LOGOUT'),
+	'CHECK':	('SELECTED',),
+	'CLOSE':	('SELECTED',),
+	'COPY':		('SELECTED',),
+	'CREATE':	('AUTH', 'SELECTED'),
+	'DELETE':	('AUTH', 'SELECTED'),
+	'EXAMINE':	('AUTH', 'SELECTED'),
+	'EXPUNGE':	('SELECTED',),
+	'FETCH':	('SELECTED',),
+	'LIST':		('AUTH', 'SELECTED'),
+	'LOGIN':	('NONAUTH',),
+	'LOGOUT':	('NONAUTH', 'AUTH', 'SELECTED', 'LOGOUT'),
+	'LSUB':		('AUTH', 'SELECTED'),
+	'NOOP':		('NONAUTH', 'AUTH', 'SELECTED', 'LOGOUT'),
+	'RENAME':	('AUTH', 'SELECTED'),
+	'SEARCH':	('SELECTED',),
+	'SELECT':	('AUTH', 'SELECTED'),
+	'STATUS':	('AUTH', 'SELECTED'),
+	'STORE':	('SELECTED',),
+	'SUBSCRIBE':	('AUTH', 'SELECTED'),
+	'UID':		('SELECTED',),
+	'UNSUBSCRIBE':	('AUTH', 'SELECTED'),
+	}
+
+#	Patterns to match server responses
+
+Continuation = re.compile(r'\+ (?P<data>.*)')
+Flags = re.compile(r'.*FLAGS \((?P<flags>[^\)]*)\)')
+InternalDate = re.compile(r'.*INTERNALDATE "'
+	r'(?P<day>[ 123][0-9])-(?P<mon>[A-Z][a-z][a-z])-(?P<year>[0-9][0-9][0-9][0-9])'
+	r' (?P<hour>[0-9][0-9]):(?P<min>[0-9][0-9]):(?P<sec>[0-9][0-9])'
+	r' (?P<zonen>[-+])(?P<zoneh>[0-9][0-9])(?P<zonem>[0-9][0-9])'
+	r'"')
+Literal = re.compile(r'(?P<data>.*) {(?P<size>\d+)}$')
+Response_code = re.compile(r'\[(?P<type>[A-Z-]+)( (?P<data>[^\]]*))?\]')
+Untagged_response = re.compile(r'\* (?P<type>[A-Z-]+) (?P<data>.*)')
+Untagged_status = re.compile(r'\* (?P<data>\d+) (?P<type>[A-Z-]+)( (?P<data2>.*))?')
+
+
+
+class IMAP4:
+
+	"""IMAP4 client class.
+
+	Instantiate with: IMAP4([host[, port]])
+
+		host - host's name (default: localhost);
+		port - port number (default: standard IMAP4 port).
+
+	All IMAP4rev1 commands are supported by methods of the same
+	name (in lower-case). Each command returns a tuple: (type, [data, ...])
+	where 'type' is usually 'OK' or 'NO', and 'data' is either the
+	text from the tagged response, or untagged results from command.
+
+	Errors raise the exception class <instance>.error("<reason>").
+	IMAP4 server errors raise <instance>.abort("<reason>"),
+	which is a sub-class of 'error'.
+	"""
+
+	class error(Exception): pass	# Logical errors - debug required
+	class abort(error): pass	# Service errors - close and retry
+	COUNT = [0]			# Count instantiations
+
+
+	def __init__(self, host = '', port = IMAP4_PORT):
+		self.host = host
+		self.port = port
+		self.debug = Debug
+		self.state = 'LOGOUT'
+		self.tagged_commands = {}	# Tagged commands awaiting response
+		self.untagged_responses = {}	# {typ: [data, ...], ...}
+		self.continuation_response = ''	# Last continuation response
+		self.tagnum = 0
+
+		# Open socket to server.
+
+		self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+		self.sock.connect(self.host, self.port)
+		self.file = self.sock.makefile('r')
+
+		# Create unique tag for this session,
+		# and compile tagged response matcher.
+
+		self.COUNT[0] = self.COUNT[0] + 1
+		self.tagpre = Int2AP((os.getpid()<<8)+self.COUNT[0])
+		self.tagre = re.compile(r'(?P<tag>'
+				+ self.tagpre
+				+ r'\d+) (?P<type>[A-Z]+) (?P<data>.*)')
+
+		# Get server welcome message,
+		# request and store CAPABILITY response.
+
+		if __debug__ and self.debug >= 1:
+			print '\tnew IMAP4 connection, tag=%s' % self.tagpre
+
+		self.welcome = self._get_response()
+		if self.untagged_responses.has_key('PREAUTH'):
+			self.state = 'AUTH'
+		elif self.untagged_responses.has_key('OK'):
+			self.state = 'NONAUTH'
+#		elif self.untagged_responses.has_key('BYE'):
+		else:
+			raise self.error(self.welcome)
+
+		cap = 'CAPABILITY'
+		self._simple_command(cap)
+		if not self.untagged_responses.has_key(cap):
+			raise self.error('no CAPABILITY response from server')
+		self.capabilities = tuple(string.split(self.untagged_responses[cap][-1]))
+		if not 'IMAP4REV1' in self.capabilities:
+			raise self.error('server not IMAP4REV1 compliant')
+
+		if __debug__ and self.debug >= 3:
+			print '\tCAPABILITIES: %s' % `self.capabilities`
+
+
+	def __getattr__(self, attr):
+		"""Allow UPPERCASE variants of all following IMAP4 commands."""
+		if Commands.has_key(attr):
+			return eval("self.%s" % string.lower(attr))
+		raise AttributeError("Unknown IMAP4 command: '%s'" % attr)
+
+
+	#	Public methods
+
+
+	def append(self, mailbox, flags, date_time, message):
+		"""Append message to named mailbox.
+
+		(typ, [data]) = <instance>.append(mailbox, flags, date_time, message)
+		"""
+		name = 'APPEND'
+		if flags:
+			flags = '(%s)' % flags
+		else:
+			flags = None
+		if date_time:
+			date_time = Time2Internaldate(date_time)
+		else:
+			date_time = None
+		tag = self._command(name, mailbox, flags, date_time, message)
+		return self._command_complete(name, tag)
+
+
+	def authenticate(self, func):
+		"""Authenticate command - requires response processing.
+
+		UNIMPLEMENTED
+		"""
+		raise self.error('UNIMPLEMENTED')
+
+
+	def check(self):
+		"""Checkpoint mailbox on server.
+
+		(typ, [data]) = <instance>.check()
+		"""
+		return self._simple_command('CHECK')
+
+
+	def close(self):
+		"""Close currently selected mailbox.
+		Deleted messages are removed from writable mailbox.
+		This is the recommended command before 'LOGOUT'.
+
+		(typ, [data]) = <instance>.close()
+		"""
+		try:
+			try: typ, dat = self._simple_command('CLOSE')
+			except EOFError: typ, dat = None, [None]
+		finally:
+			self.state = 'AUTH'
+		return typ, dat
+
+
+	def copy(self, message_set, new_mailbox):
+		"""Copy 'message_set' messages onto end of 'new_mailbox'.
+
+		(typ, [data]) = <instance>.copy(message_set, new_mailbox)
+		"""
+		return self._simple_command('COPY', message_set, new_mailbox)
+
+
+	def create(self, mailbox):
+		"""Create new mailbox.
+
+		(typ, [data]) = <instance>.create(mailbox)
+		"""
+		return self._simple_command('CREATE', mailbox)
+
+
+	def delete(self, mailbox):
+		"""Delete old mailbox.
+
+		(typ, [data]) = <instance>.delete(mailbox)
+		"""
+		return self._simple_command('DELETE', mailbox)
+
+
+	def expunge(self):
+		"""Permanently remove deleted items from selected mailbox.
+		Generates 'EXPUNGE' response for each deleted message.
+
+		(typ, [data]) = <instance>.expunge()
+
+		'data' is list of 'EXPUNGE'd message numbers in order received.
+		"""
+		name = 'EXPUNGE'
+		typ, dat = self._simple_command(name)
+		return self._untagged_response(typ, name)
+
+
+	def fetch(self, message_set, message_parts):
+		"""Fetch (parts of) messages.
+
+		(typ, [data, ...]) = <instance>.fetch(message_set, message_parts)
+
+		'data' are tuples of message part envelope and data.
+		"""
+		name = 'FETCH'
+		typ, dat = self._simple_command(name, message_set, message_parts)
+		return self._untagged_response(typ, name)
+
+
+	def list(self, directory='""', pattern='*'):
+		"""List mailbox names in directory matching pattern.
+
+		(typ, [data]) = <instance>.list(directory='""', pattern='*')
+
+		'data' is list of LIST responses.
+		"""
+		name = 'LIST'
+		typ, dat = self._simple_command(name, directory, pattern)
+		return self._untagged_response(typ, name)
+
+
+	def login(self, user, password):
+		"""Identify client using plaintext password.
+
+		(typ, [data]) = <instance>.list(user, password)
+		"""
+		if not 'AUTH=LOGIN' in self.capabilities:
+			raise self.error("server doesn't allow LOGIN authorisation")
+		typ, dat = self._simple_command('LOGIN', user, password)
+		if typ != 'OK':
+			raise self.error(dat)
+		self.state = 'AUTH'
+		return typ, dat
+
+
+	def logout(self):
+		"""Shutdown connection to server.
+
+		(typ, [data]) = <instance>.logout()
+
+		Returns server 'BYE' response.
+		"""
+		self.state = 'LOGOUT'
+		try: typ, dat = self._simple_command('LOGOUT')
+		except EOFError: typ, dat = None, [None]
+		self.file.close()
+		self.sock.close()
+		if self.untagged_responses.has_key('BYE'):
+			return 'BYE', self.untagged_responses['BYE']
+		return typ, dat
+
+
+	def lsub(self, directory='""', pattern='*'):
+		"""List 'subscribed' mailbox names in directory matching pattern.
+
+		(typ, [data, ...]) = <instance>.lsub(directory='""', pattern='*')
+
+		'data' are tuples of message part envelope and data.
+		"""
+		name = 'LSUB'
+		typ, dat = self._simple_command(name, directory, pattern)
+		return self._untagged_response(typ, name)
+
+
+	def recent(self):
+		"""Prompt server for an update.
+
+		(typ, [data]) = <instance>.recent()
+
+		'data' is None if no new messages,
+		else value of RECENT response.
+		"""
+		name = 'RECENT'
+		typ, dat = self._untagged_response('OK', name)
+		if dat[-1]:
+			return typ, dat
+		typ, dat = self._simple_command('NOOP')
+		return self._untagged_response(typ, name)
+
+
+	def rename(self, oldmailbox, newmailbox):
+		"""Rename old mailbox name to new.
+
+		(typ, data) = <instance>.rename(oldmailbox, newmailbox)
+		"""
+		return self._simple_command('RENAME', oldmailbox, newmailbox)
+
+
+	def response(self, code):
+		"""Return data for response 'code' if received, or None.
+
+		(code, [data]) = <instance>.response(code)
+		"""
+		return code, self.untagged_responses.get(code, [None])
+
+
+	def search(self, charset, criteria):
+		"""Search mailbox for matching messages.
+
+		(typ, [data]) = <instance>.search(charset, criteria)
+
+		'data' is space separated list of matching message numbers.
+		"""
+		name = 'SEARCH'
+		if charset:
+			charset = 'CHARSET ' + charset
+		typ, dat = self._simple_command(name, charset, criteria)
+		return self._untagged_response(typ, name)
+
+
+	def select(self, mailbox='INBOX', readonly=None):
+		"""Select a mailbox.
+
+		(typ, [data]) = <instance>.select(mailbox='INBOX', readonly=None)
+
+		'data' is count of messages in mailbox ('EXISTS' response).
+		"""
+		# Mandated responses are ('FLAGS', 'EXISTS', 'RECENT', 'UIDVALIDITY')
+		# Remove immediately interesting responses
+		for r in ('EXISTS', 'READ-WRITE'):
+			if self.untagged_responses.has_key(r):
+				del self.untagged_responses[r]
+		if readonly:
+			name = 'EXAMINE'
+		else:
+			name = 'SELECT'
+		typ, dat = self._simple_command(name, mailbox)
+		if typ == 'OK':
+			self.state = 'SELECTED'
+		elif typ == 'NO':
+			self.state = 'AUTH'
+		if not readonly and not self.untagged_responses.has_key('READ-WRITE'):
+			raise self.error('%s is not writable' % mailbox)
+		return typ, self.untagged_responses.get('EXISTS', [None])
+
+
+	def status(self, mailbox, names):
+		"""Request named status conditions for mailbox.
+
+		(typ, [data]) = <instance>.status(mailbox, names)
+		"""
+		name = 'STATUS'
+		typ, dat = self._simple_command(name, mailbox, names)
+		return self._untagged_response(typ, name)
+
+
+	def store(self, message_set, command, flag_list):
+		"""Alters flag dispositions for messages in mailbox.
+
+		(typ, [data]) = <instance>.store(message_set, command, flag_list)
+		"""
+		command = '%s %s' % (command, flag_list)
+		typ, dat = self._simple_command('STORE', message_set, command)
+		return self._untagged_response(typ, 'FETCH')
+
+
+	def subscribe(self, mailbox):
+		"""Subscribe to new mailbox.
+
+		(typ, [data]) = <instance>.subscribe(mailbox)
+		"""
+		return self._simple_command('SUBSCRIBE', mailbox)
+
+
+	def uid(self, command, args):
+		"""Execute "command args" with messages identified by UID,
+		rather than message number.
+
+		(typ, [data]) = <instance>.uid(command, args)
+
+		Returns response appropriate to 'command'.
+		"""
+		name = 'UID'
+		typ, dat = self._simple_command('UID', command, args)
+		if command == 'SEARCH':
+			name = 'SEARCH'
+		else:
+			name = 'FETCH'
+		typ, dat2 = self._untagged_response(typ, name)
+		if dat2[-1]: dat = dat2
+		return typ, dat
+
+
+	def unsubscribe(self, mailbox):
+		"""Unsubscribe from old mailbox.
+
+		(typ, [data]) = <instance>.unsubscribe(mailbox)
+		"""
+		return self._simple_command('UNSUBSCRIBE', mailbox)
+
+
+	def xatom(self, name, arg1=None, arg2=None):
+		"""Allow simple extension commands
+		notified by server in CAPABILITY response.
+
+		(typ, [data]) = <instance>.xatom(name, arg1=None, arg2=None)
+		"""
+		if name[0] != 'X' or not name in self.capabilities:
+			raise self.error('unknown extension command: %s' % name)
+		return self._simple_command(name, arg1, arg2)
+
+
+
+	#	Private methods
+
+
+	def _append_untagged(self, typ, dat):
+
+		if self.untagged_responses.has_key(typ):
+			self.untagged_responses[typ].append(dat)
+		else:
+			self.untagged_responses[typ] = [dat]
+
+		if __debug__ and self.debug >= 5:
+			print '\tuntagged_responses[%s] += %.20s..' % (typ, `dat`)
+
+
+	def _command(self, name, dat1=None, dat2=None, dat3=None, literal=None):
+
+		if self.state not in Commands[name]:
+			raise self.error(
+			'command %s illegal in state %s' % (name, self.state))
+
+		tag = self._new_tag()
+		data = '%s %s' % (tag, name)
+		for d in (dat1, dat2, dat3):
+			if d is not None: data = '%s %s' % (data, d)
+		if literal is not None:
+			data = '%s {%s}' % (data, len(literal))
+
+		try:
+			self.sock.send('%s%s' % (data, CRLF))
+		except socket.error, val:
+			raise self.abort('socket error: %s' % val)
+
+		if __debug__ and self.debug >= 4:
+			print '\t> %s' % data
+
+		if literal is None:
+			return tag
+
+		# Wait for continuation response
+
+		while self._get_response():
+			if self.tagged_commands[tag]:	# BAD/NO?
+				return tag
+
+		# Send literal
+
+		if __debug__ and self.debug >= 4:
+			print '\twrite literal size %s' % len(literal)
+
+		try:
+			self.sock.send(literal)
+			self.sock.send(CRLF)
+		except socket.error, val:
+			raise self.abort('socket error: %s' % val)
+
+		return tag
+
+
+	def _command_complete(self, name, tag):
+		try:
+			typ, data = self._get_tagged_response(tag)
+		except self.abort, val:
+			raise self.abort('command: %s => %s' % (name, val))
+		except self.error, val:
+			raise self.error('command: %s => %s' % (name, val))
+		if self.untagged_responses.has_key('BYE') and name != 'LOGOUT':
+			raise self.abort(self.untagged_responses['BYE'][-1])
+		if typ == 'BAD':
+			raise self.error('%s command error: %s %s' % (name, typ, data))
+		return typ, data
+
+
+	def _get_response(self):
+
+		# Read response and store.
+		#
+		# Returns None for continuation responses,
+		# otherwise first response line received
+
+		# Protocol mandates all lines terminated by CRLF.
+
+		resp = self._get_line()[:-2]
+
+		# Command completion response?
+
+		if self._match(self.tagre, resp):
+			tag = self.mo.group('tag')
+			if not self.tagged_commands.has_key(tag):
+				raise self.abort('unexpected tagged response: %s' % resp)
+
+			typ = self.mo.group('type')
+			dat = self.mo.group('data')
+			self.tagged_commands[tag] = (typ, [dat])
+		else:
+			dat2 = None
+
+			# '*' (untagged) responses?
+
+			if not self._match(Untagged_response, resp):
+				if self._match(Untagged_status, resp):
+					dat2 = self.mo.group('data2')
+
+			if self.mo is None:
+				# Only other possibility is '+' (continuation) rsponse...
+
+				if self._match(Continuation, resp):
+					self.continuation_response = self.mo.group('data')
+					return None	# NB: indicates continuation
+
+				raise self.abort('unexpected response: %s' % resp)
+
+			typ = self.mo.group('type')
+			dat = self.mo.group('data')
+			if dat2: dat = dat + ' ' + dat2
+
+			# Is there a literal to come?
+
+			while self._match(Literal, dat):
+
+				# Read literal direct from connection.
+
+				size = string.atoi(self.mo.group('size'))
+				if __debug__ and self.debug >= 4:
+					print '\tread literal size %s' % size
+				data = self.file.read(size)
+
+				# Store response with literal as tuple
+
+				self._append_untagged(typ, (dat, data))
+
+				# Read trailer - possibly containing another literal
+
+				dat = self._get_line()[:-2]
+
+			self._append_untagged(typ, dat)
+
+		# Bracketed response information?
+
+		if typ in ('OK', 'NO', 'BAD') and self._match(Response_code, dat):
+			self._append_untagged(self.mo.group('type'), self.mo.group('data'))
+
+		return resp
+
+
+	def _get_tagged_response(self, tag):
+
+		while 1:
+			result = self.tagged_commands[tag]
+			if result is not None:
+				del self.tagged_commands[tag]
+				return result
+			self._get_response()
+
+
+	def _get_line(self):
+
+		line = self.file.readline()
+		if not line:
+			raise EOFError
+
+		# Protocol mandates all lines terminated by CRLF
+
+		if __debug__ and self.debug >= 4:
+			print '\t< %s' % line[:-2]
+		return line
+
+
+	def _match(self, cre, s):
+
+		# Run compiled regular expression match method on 's'.
+		# Save result, return success.
+
+		self.mo = cre.match(s)
+		if __debug__ and self.mo is not None and self.debug >= 5:
+			print "\tmatched r'%s' => %s" % (cre.pattern, `self.mo.groups()`)
+		return self.mo is not None
+
+
+	def _new_tag(self):
+
+		tag = '%s%s' % (self.tagpre, self.tagnum)
+		self.tagnum = self.tagnum + 1
+		self.tagged_commands[tag] = None
+		return tag
+
+
+	def _simple_command(self, name, dat1=None, dat2=None):
+
+		return self._command_complete(name, self._command(name, dat1, dat2))
+
+
+	def _untagged_response(self, typ, name):
+
+		if not self.untagged_responses.has_key(name):
+			return typ, [None]
+		data = self.untagged_responses[name]
+		del self.untagged_responses[name]
+		return typ, data
+
+
+
+Mon2num = {'Jan': 1, 'Feb': 2, 'Mar': 3, 'Apr': 4, 'May': 5, 'Jun': 6,
+	'Jul': 7, 'Aug': 8, 'Sep': 9, 'Oct': 10, 'Nov': 11, 'Dec': 12}
+
+def Internaldate2tuple(resp):
+
+	"""
+		Convert IMAP4 INTERNALDATE to UT.
+
+		Returns Python time module tuple.
+	"""
+
+	mo = InternalDate.match(resp)
+	if not mo:
+		return None
+
+	mon = Mon2num[mo.group('mon')]
+	zonen = mo.group('zonen')
+
+	for name in ('day', 'year', 'hour', 'min', 'sec', 'zoneh', 'zonem'):
+		exec "%s = string.atoi(mo.group('%s'))" % (name, name)
+
+	# INTERNALDATE timezone must be subtracted to get UT
+
+	zone = (zoneh*60 + zonem)*60
+	if zonen == '-':
+		zone = -zone
+
+	tt = (year, mon, day, hour, min, sec, -1, -1, -1)
+
+	utc = time.mktime(tt)
+
+	# Following is necessary because the time module has no 'mkgmtime'.
+	# 'mktime' assumes arg in local timezone, so adds timezone/altzone.
+
+	lt = time.localtime(utc)
+	if time.daylight and lt[-1]:
+		zone = zone + time.altzone
+	else:
+		zone = zone + time.timezone
+
+	return time.localtime(utc - zone)
+
+
+
+def Int2AP(num):
+
+	"""Convert integer to A-P string representation. """
+
+	val = ''; AP = 'ABCDEFGHIJKLMNOP'
+	while num:
+		num, mod = divmod(num, 16)
+		val = AP[mod] + val
+	return val
+
+
+
+def ParseFlags(resp):
+
+	"""Convert IMAP4 flags response to python tuple. """
+
+	mo = Flags.match(resp)
+	if not mo:
+		return ()
+
+	return tuple(string.split(mo.group('flags')))
+
+
+def Time2Internaldate(date_time):
+
+	"""Convert 'date_time' to IMAP4 INTERNALDATE representation.
+
+	Return string in form: '"DD-Mmm-YYYY HH:MM:SS +HHMM"'
+	"""
+
+	dttype = type(date_time)
+	if dttype is type(1):
+		tt = time.localtime(date_time)
+	elif dttype is type(()):
+		tt = date_time
+	elif dttype is type(""):
+		return date_time	# Assume in correct format
+	else: raise ValueError
+
+	dt = time.strftime("%d-%b-%Y %H:%M:%S", tt)
+	if dt[0] == '0':
+		dt = ' ' + dt[1:]
+	if time.daylight and tt[-1]:
+		zone = -time.altzone
+	else:
+		zone = -time.timezone
+	return '"' + dt + " %+02d%02d" % divmod(zone/60, 60) + '"'
+
+
+
+if __debug__ and __name__ == '__main__':
+
+	import getpass
+	USER = getpass.getuser()
+	PASSWD = getpass.getpass()
+
+	test_seq1 = (
+	('login', (USER, PASSWD)),
+	('create', ('/tmp/xxx',)),
+	('rename', ('/tmp/xxx', '/tmp/yyy')),
+	('CREATE', ('/tmp/yyz',)),
+	('append', ('/tmp/yyz', None, None, 'From: anon@x.y.z\n\ndata...')),
+	('select', ('/tmp/yyz',)),
+	('recent', ()),
+	('uid', ('SEARCH', 'ALL')),
+	('fetch', ('1', '(INTERNALDATE RFC822)')),
+	('store', ('1', 'FLAGS', '(\Deleted)')),
+	('expunge', ()),
+	('close', ()),
+	)
+
+	test_seq2 = (
+	('select', ()),
+	('response',('UIDVALIDITY',)),
+	('uid', ('SEARCH', 'ALL')),
+	('recent', ()),
+	('response', ('EXISTS',)),
+	('logout', ()),
+	)
+
+	def run(cmd, args):
+		typ, dat = apply(eval('M.%s' % cmd), args)
+		print ' %s %s\n  => %s %s' % (cmd, args, typ, dat)
+		return dat
+
+	Debug = 4
+	M = IMAP4()
+
+	for cmd,args in test_seq1:
+		run(cmd, args)
+
+	for ml in M.list('/tmp/', 'yy%')[1]:
+		path = string.split(ml)[-1]
+		print '%s %s' % M.delete(path)
+
+	for cmd,args in test_seq2:
+		dat = run(cmd, args)
+
+		if (cmd,args) == ('uid', ('SEARCH', 'ALL')):
+			uid = string.split(dat[0])[-1]
+			run('uid', ('FETCH', '%s (FLAGS INTERNALDATE RFC822.SIZE RFC822.HEADER RFC822)' % uid))