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imaplib2.py
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imaplib2.py
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#!/usr/bin/env python
"""Threaded IMAP4 client.
Based on RFC 3501 and original imaplib module.
Public classes: IMAP4
IMAP4_SSL
IMAP4_stream
Public functions: Internaldate2Time
ParseFlags
Time2Internaldate
"""
__all__ = ("IMAP4", "IMAP4_SSL", "IMAP4_stream",
"Internaldate2Time", "ParseFlags", "Time2Internaldate")
__version__ = "2.36"
__release__ = "2"
__revision__ = "36"
__credits__ = """
Authentication code contributed by Donn Cave <donn@u.washington.edu> June 1998.
String method conversion by ESR, February 2001.
GET/SETACL contributed by Anthony Baxter <anthony@interlink.com.au> April 2001.
IMAP4_SSL contributed by Tino Lange <Tino.Lange@isg.de> March 2002.
GET/SETQUOTA contributed by Andreas Zeidler <az@kreativkombinat.de> June 2002.
PROXYAUTH contributed by Rick Holbert <holbert.13@osu.edu> November 2002.
IDLE via threads suggested by Philippe Normand <phil@respyre.org> January 2005.
GET/SETANNOTATION contributed by Tomas Lindroos <skitta@abo.fi> June 2005.
COMPRESS/DEFLATE contributed by Bron Gondwana <brong@brong.net> May 2009.
STARTTLS from Jython's imaplib by Alan Kennedy.
ID contributed by Dave Baggett <dave@baggett.org> November 2009.
Improved untagged responses handling suggested by Dave Baggett <dave@baggett.org> November 2009.
Improved thread naming, and 0 read detection contributed by Grant Edwards <grant.b.edwards@gmail.com> June 2010.
Improved timeout handling contributed by Ivan Vovnenko <ivovnenko@gmail.com> October 2010.
Timeout handling further improved by Ethan Glasser-Camp <glasse@cs.rpi.edu> December 2010.
Time2Internaldate() patch to match RFC2060 specification of English month names from bugs.python.org/issue11024 March 2011.
starttls() bug fixed with the help of Sebastian Spaeth <sebastian@sspaeth.de> April 2011.
Threads now set the "daemon" flag (suggested by offlineimap-project) April 2011.
Single quoting introduced with the help of Vladimir Marek <vladimir.marek@oracle.com> August 2011.
Support for specifying SSL version by Ryan Kavanagh <rak@debian.org> July 2013.
Fix for gmail "read 0" error provided by Jim Greenleaf <james.a.greenleaf@gmail.com> August 2013.
Fix for offlineimap "indexerror: string index out of range" bug provided by Eygene Ryabinkin <rea@codelabs.ru> August 2013."""
__author__ = "Piers Lauder <piers@janeelix.com>"
__URL__ = "http://imaplib2.sourceforge.net"
__license__ = "Python License"
import binascii, errno, os, Queue, random, re, select, socket, sys, time, threading, zlib
select_module = select
# Globals
CRLF = '\r\n'
Debug = None # Backward compatibility
IMAP4_PORT = 143
IMAP4_SSL_PORT = 993
IDLE_TIMEOUT_RESPONSE = '* IDLE TIMEOUT\r\n'
IDLE_TIMEOUT = 60*29 # Don't stay in IDLE state longer
READ_POLL_TIMEOUT = 30 # Without this timeout interrupted network connections can hang reader
READ_SIZE = 32768 # Consume all available in socket
DFLT_DEBUG_BUF_LVL = 3 # Level above which the logging output goes directly to stderr
AllowedVersions = ('IMAP4REV1', 'IMAP4') # Most recent first
# Commands
CMD_VAL_STATES = 0
CMD_VAL_ASYNC = 1
NONAUTH, AUTH, SELECTED, LOGOUT = 'NONAUTH', 'AUTH', 'SELECTED', 'LOGOUT'
Commands = {
# name valid states asynchronous
'APPEND': ((AUTH, SELECTED), False),
'AUTHENTICATE': ((NONAUTH,), False),
'CAPABILITY': ((NONAUTH, AUTH, SELECTED), True),
'CHECK': ((SELECTED,), True),
'CLOSE': ((SELECTED,), False),
'COMPRESS': ((AUTH,), False),
'COPY': ((SELECTED,), True),
'CREATE': ((AUTH, SELECTED), True),
'DELETE': ((AUTH, SELECTED), True),
'DELETEACL': ((AUTH, SELECTED), True),
'EXAMINE': ((AUTH, SELECTED), False),
'EXPUNGE': ((SELECTED,), True),
'FETCH': ((SELECTED,), True),
'GETACL': ((AUTH, SELECTED), True),
'GETANNOTATION':((AUTH, SELECTED), True),
'GETQUOTA': ((AUTH, SELECTED), True),
'GETQUOTAROOT': ((AUTH, SELECTED), True),
'ID': ((NONAUTH, AUTH, LOGOUT, SELECTED), True),
'IDLE': ((SELECTED,), False),
'LIST': ((AUTH, SELECTED), True),
'LOGIN': ((NONAUTH,), False),
'LOGOUT': ((NONAUTH, AUTH, LOGOUT, SELECTED), False),
'LSUB': ((AUTH, SELECTED), True),
'MYRIGHTS': ((AUTH, SELECTED), True),
'NAMESPACE': ((AUTH, SELECTED), True),
'NOOP': ((NONAUTH, AUTH, SELECTED), True),
'PARTIAL': ((SELECTED,), True),
'PROXYAUTH': ((AUTH,), False),
'RENAME': ((AUTH, SELECTED), True),
'SEARCH': ((SELECTED,), True),
'SELECT': ((AUTH, SELECTED), False),
'SETACL': ((AUTH, SELECTED), False),
'SETANNOTATION':((AUTH, SELECTED), True),
'SETQUOTA': ((AUTH, SELECTED), False),
'SORT': ((SELECTED,), True),
'STARTTLS': ((NONAUTH,), False),
'STATUS': ((AUTH, SELECTED), True),
'STORE': ((SELECTED,), True),
'SUBSCRIBE': ((AUTH, SELECTED), False),
'THREAD': ((SELECTED,), True),
'UID': ((SELECTED,), True),
'UNSUBSCRIBE': ((AUTH, SELECTED), False),
}
UID_direct = ('SEARCH', 'SORT', 'THREAD')
def Int2AP(num):
"""string = Int2AP(num)
Return 'num' converted to a string using characters from the set 'A'..'P'
"""
val, a2p = [], 'ABCDEFGHIJKLMNOP'
num = int(abs(num))
while num:
num, mod = divmod(num, 16)
val.insert(0, a2p[mod])
return ''.join(val)
class Request(object):
"""Private class to represent a request awaiting response."""
def __init__(self, parent, name=None, callback=None, cb_arg=None, cb_self=False):
self.parent = parent
self.name = name
self.callback = callback # Function called to process result
if not cb_self:
self.callback_arg = cb_arg # Optional arg passed to "callback"
else:
self.callback_arg = (self, cb_arg) # Self reference required in callback arg
self.tag = '%s%s' % (parent.tagpre, parent.tagnum)
parent.tagnum += 1
self.ready = threading.Event()
self.response = None
self.aborted = None
self.data = None
def abort(self, typ, val):
self.aborted = (typ, val)
self.deliver(None)
def get_response(self, exc_fmt=None):
self.callback = None
if __debug__: self.parent._log(3, '%s:%s.ready.wait' % (self.name, self.tag))
self.ready.wait()
if self.aborted is not None:
typ, val = self.aborted
if exc_fmt is None:
exc_fmt = '%s - %%s' % typ
raise typ(exc_fmt % str(val))
return self.response
def deliver(self, response):
if self.callback is not None:
self.callback((response, self.callback_arg, self.aborted))
return
self.response = response
self.ready.set()
if __debug__: self.parent._log(3, '%s:%s.ready.set' % (self.name, self.tag))
class IMAP4(object):
"""Threaded IMAP4 client class.
Instantiate with:
IMAP4(host=None, port=None, debug=None, debug_file=None, identifier=None, timeout=None, debug_buf_lvl=None)
host - host's name (default: localhost);
port - port number (default: standard IMAP4 port);
debug - debug level (default: 0 - no debug);
debug_file - debug stream (default: sys.stderr);
identifier - thread identifier prefix (default: host);
timeout - timeout in seconds when expecting a command response (default: no timeout),
debug_buf_lvl - debug level at which buffering is turned off.
All IMAP4rev1 commands are supported by methods of the same name.
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. Each 'data' is
either a string, or a tuple. If a tuple, then the first part is the
header of the response, and the second part contains the data (ie:
'literal' value).
Errors raise the exception class <instance>.error("<reason>").
IMAP4 server errors raise <instance>.abort("<reason>"), which is
a sub-class of 'error'. Mailbox status changes from READ-WRITE to
READ-ONLY raise the exception class <instance>.readonly("<reason>"),
which is a sub-class of 'abort'.
"error" exceptions imply a program error.
"abort" exceptions imply the connection should be reset, and
the command re-tried.
"readonly" exceptions imply the command should be re-tried.
All commands take two optional named arguments:
'callback' and 'cb_arg'
If 'callback' is provided then the command is asynchronous, so after
the command is queued for transmission, the call returns immediately
with the tuple (None, None).
The result will be posted by invoking "callback" with one arg, a tuple:
callback((result, cb_arg, None))
or, if there was a problem:
callback((None, cb_arg, (exception class, reason)))
Otherwise the command is synchronous (waits for result). But note
that state-changing commands will both block until previous commands
have completed, and block subsequent commands until they have finished.
All (non-callback) arguments to commands are converted to strings,
except for AUTHENTICATE, and the last argument to APPEND which is
passed as an IMAP4 literal. If necessary (the string contains any
non-printing characters or white-space and isn't enclosed with
either parentheses or double or single quotes) each string is
quoted. However, the 'password' argument to the LOGIN command is
always quoted. If you want to avoid having an argument string
quoted (eg: the 'flags' argument to STORE) then enclose the string
in parentheses (eg: "(\Deleted)"). If you are using "sequence sets"
containing the wildcard character '*', then enclose the argument
in single quotes: the quotes will be removed and the resulting
string passed unquoted. Note also that you can pass in an argument
with a type that doesn't evaluate to 'basestring' (eg: 'bytearray')
and it will be converted to a string without quoting.
There is one instance variable, 'state', that is useful for tracking
whether the client needs to login to the server. If it has the
value "AUTH" after instantiating the class, then the connection
is pre-authenticated (otherwise it will be "NONAUTH"). Selecting a
mailbox changes the state to be "SELECTED", closing a mailbox changes
back to "AUTH", and once the client has logged out, the state changes
to "LOGOUT" and no further commands may be issued.
Note: to use this module, you must read the RFCs pertaining to the
IMAP4 protocol, as the semantics of the arguments to each IMAP4
command are left to the invoker, not to mention the results. Also,
most IMAP servers implement a sub-set of the commands available here.
Note also that you must call logout() to shut down threads before
discarding an instance.
"""
class error(Exception): pass # Logical errors - debug required
class abort(error): pass # Service errors - close and retry
class readonly(abort): pass # Mailbox status changed to READ-ONLY
continuation_cre = re.compile(r'\+( (?P<data>.*))?')
literal_cre = re.compile(r'.*{(?P<size>\d+)}$')
mapCRLF_cre = re.compile(r'\r\n|\r|\n')
# Need to quote "atom-specials" :-
# "(" / ")" / "{" / SP / 0x00 - 0x1f / 0x7f / "%" / "*" / DQUOTE / "\" / "]"
# so match not the inverse set
mustquote_cre = re.compile(r"[^!#$&'+,./0-9:;<=>?@A-Z\[^_`a-z|}~-]")
response_code_cre = re.compile(r'\[(?P<type>[A-Z-]+)( (?P<data>[^\]]*))?\]')
# sequence_set_cre = re.compile(r"^[0-9]+(:([0-9]+|\*))?(,[0-9]+(:([0-9]+|\*))?)*$")
untagged_response_cre = re.compile(r'\* (?P<type>[A-Z-]+)( (?P<data>.*))?')
untagged_status_cre = re.compile(r'\* (?P<data>\d+) (?P<type>[A-Z-]+)( (?P<data2>.*))?')
def __init__(self, host=None, port=None, debug=None, debug_file=None, identifier=None, timeout=None, debug_buf_lvl=None):
self.state = NONAUTH # IMAP4 protocol state
self.literal = None # A literal argument to a command
self.tagged_commands = {} # Tagged commands awaiting response
self.untagged_responses = [] # [[typ: [data, ...]], ...]
self.mailbox = None # Current mailbox selected
self.mailboxes = {} # Untagged responses state per mailbox
self.is_readonly = False # READ-ONLY desired state
self.idle_rqb = None # Server IDLE Request - see _IdleCont
self.idle_timeout = None # Must prod server occasionally
self._expecting_data = False # Expecting message data
self._expecting_data_len = 0 # How many characters we expect
self._accumulated_data = [] # Message data accumulated so far
self._literal_expected = None # Message data descriptor
self.compressor = None # COMPRESS/DEFLATE if not None
self.decompressor = None
# Create unique tag for this session,
# and compile tagged response matcher.
self.tagnum = 0
self.tagpre = Int2AP(random.randint(4096, 65535))
self.tagre = re.compile(r'(?P<tag>'
+ self.tagpre
+ r'\d+) (?P<type>[A-Z]+) (?P<data>.*)')
if __debug__: self._init_debug(debug, debug_file, debug_buf_lvl)
self.resp_timeout = timeout # Timeout waiting for command response
if timeout is not None and timeout < READ_POLL_TIMEOUT:
self.read_poll_timeout = timeout
else:
self.read_poll_timeout = READ_POLL_TIMEOUT
self.read_size = READ_SIZE
# Open socket to server.
self.open(host, port)
if __debug__:
if debug:
self._mesg('connected to %s on port %s' % (self.host, self.port))
# Threading
if identifier is not None:
self.identifier = identifier
else:
self.identifier = self.host
if self.identifier:
self.identifier += ' '
self.Terminate = self.TerminateReader = False
self.state_change_free = threading.Event()
self.state_change_pending = threading.Lock()
self.commands_lock = threading.Lock()
self.idle_lock = threading.Lock()
self.ouq = Queue.Queue(10)
self.inq = Queue.Queue()
self.wrth = threading.Thread(target=self._writer)
self.wrth.setDaemon(True)
self.wrth.start()
self.rdth = threading.Thread(target=self._reader)
self.rdth.setDaemon(True)
self.rdth.start()
self.inth = threading.Thread(target=self._handler)
self.inth.setDaemon(True)
self.inth.start()
# Get server welcome message,
# request and store CAPABILITY response.
try:
self.welcome = self._request_push(tag='continuation').get_response('IMAP4 protocol error: %s')[1]
if self._get_untagged_response('PREAUTH'):
self.state = AUTH
if __debug__: self._log(1, 'state => AUTH')
elif self._get_untagged_response('OK'):
if __debug__: self._log(1, 'state => NONAUTH')
else:
raise self.error('unrecognised server welcome message: %s' % `self.welcome`)
typ, dat = self.capability()
if dat == [None]:
raise self.error('no CAPABILITY response from server')
self.capabilities = tuple(dat[-1].upper().split())
if __debug__: self._log(1, 'CAPABILITY: %r' % (self.capabilities,))
for version in AllowedVersions:
if not version in self.capabilities:
continue
self.PROTOCOL_VERSION = version
break
else:
raise self.error('server not IMAP4 compliant')
except:
self._close_threads()
raise
def __getattr__(self, attr):
# Allow UPPERCASE variants of IMAP4 command methods.
if attr in Commands:
return getattr(self, attr.lower())
raise AttributeError("Unknown IMAP4 command: '%s'" % attr)
# Overridable methods
def open(self, host=None, port=None):
"""open(host=None, port=None)
Setup connection to remote server on "host:port"
(default: localhost:standard IMAP4 port).
This connection will be used by the routines:
read, send, shutdown, socket."""
self.host = self._choose_nonull_or_dflt('', host)
self.port = self._choose_nonull_or_dflt(IMAP4_PORT, port)
self.sock = self.open_socket()
self.read_fd = self.sock.fileno()
def open_socket(self):
"""open_socket()
Open socket choosing first address family available."""
msg = (-1, 'could not open socket')
for res in socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM):
af, socktype, proto, canonname, sa = res
try:
s = socket.socket(af, socktype, proto)
except socket.error, msg:
continue
try:
for i in (0, 1):
try:
s.connect(sa)
break
except socket.error, msg:
if len(msg.args) < 2 or msg.args[0] != errno.EINTR:
raise
else:
raise socket.error(msg)
except socket.error, msg:
s.close()
continue
break
else:
raise socket.error(msg)
return s
def ssl_wrap_socket(self):
# Allow sending of keep-alive messages - seems to prevent some servers
# from closing SSL, leading to deadlocks.
self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
try:
import ssl
if self.ca_certs is not None:
cert_reqs = ssl.CERT_REQUIRED
else:
cert_reqs = ssl.CERT_NONE
if self.ssl_version == "tls1":
ssl_version = ssl.PROTOCOL_TLSv1
elif self.ssl_version == "ssl2":
ssl_version = ssl.PROTOCOL_SSLv2
elif self.ssl_version == "ssl3":
ssl_version = ssl.PROTOCOL_SSLv3
elif self.ssl_version == "ssl23" or self.ssl_version is None:
ssl_version = ssl.PROTOCOL_SSLv23
else:
raise socket.sslerror("Invalid SSL version requested: %s", self.ssl_version)
self.sock = ssl.wrap_socket(self.sock, self.keyfile, self.certfile, ca_certs=self.ca_certs, cert_reqs=cert_reqs, ssl_version=ssl_version)
ssl_exc = ssl.SSLError
self.read_fd = self.sock.fileno()
except ImportError:
# No ssl module, and socket.ssl has no fileno(), and does not allow certificate verification
raise socket.sslerror("imaplib2 SSL mode does not work without ssl module")
if self.cert_verify_cb is not None:
cert_err = self.cert_verify_cb(self.sock.getpeercert(), self.host)
if cert_err:
raise ssl_exc(cert_err)
def start_compressing(self):
"""start_compressing()
Enable deflate compression on the socket (RFC 4978)."""
# rfc 1951 - pure DEFLATE, so use -15 for both windows
self.decompressor = zlib.decompressobj(-15)
self.compressor = zlib.compressobj(zlib.Z_DEFAULT_COMPRESSION, zlib.DEFLATED, -15)
def read(self, size):
"""data = read(size)
Read at most 'size' bytes from remote."""
if self.decompressor is None:
return self.sock.recv(size)
if self.decompressor.unconsumed_tail:
data = self.decompressor.unconsumed_tail
else:
data = self.sock.recv(READ_SIZE)
return self.decompressor.decompress(data, size)
def send(self, data):
"""send(data)
Send 'data' to remote."""
if self.compressor is not None:
data = self.compressor.compress(data)
data += self.compressor.flush(zlib.Z_SYNC_FLUSH)
self.sock.sendall(data)
def shutdown(self):
"""shutdown()
Close I/O established in "open"."""
self.sock.close()
def socket(self):
"""socket = socket()
Return socket instance used to connect to IMAP4 server."""
return self.sock
# Utility methods
def enable_compression(self):
"""enable_compression()
Ask the server to start compressing the connection.
Should be called from user of this class after instantiation, as in:
if 'COMPRESS=DEFLATE' in imapobj.capabilities:
imapobj.enable_compression()"""
try:
typ, dat = self._simple_command('COMPRESS', 'DEFLATE')
if typ == 'OK':
self.start_compressing()
if __debug__: self._log(1, 'Enabled COMPRESS=DEFLATE')
finally:
self._release_state_change()
def pop_untagged_responses(self):
""" for typ,data in pop_untagged_responses(): pass
Generator for any remaining untagged responses.
Returns and removes untagged responses in order of reception.
Use at your own risk!"""
while self.untagged_responses:
self.commands_lock.acquire()
try:
yield self.untagged_responses.pop(0)
finally:
self.commands_lock.release()
def recent(self, **kw):
"""(typ, [data]) = recent()
Return 'RECENT' responses if any exist,
else prompt server for an update using the 'NOOP' command.
'data' is None if no new messages,
else list of RECENT responses, most recent last."""
name = 'RECENT'
typ, dat = self._untagged_response(None, [None], name)
if dat != [None]:
return self._deliver_dat(typ, dat, kw)
kw['untagged_response'] = name
return self.noop(**kw) # Prod server for response
def response(self, code, **kw):
"""(code, [data]) = response(code)
Return data for response 'code' if received, or None.
Old value for response 'code' is cleared."""
typ, dat = self._untagged_response(code, [None], code.upper())
return self._deliver_dat(typ, dat, kw)
# IMAP4 commands
def append(self, mailbox, flags, date_time, message, **kw):
"""(typ, [data]) = append(mailbox, flags, date_time, message)
Append message to named mailbox.
All args except `message' can be None."""
name = 'APPEND'
if not mailbox:
mailbox = 'INBOX'
if flags:
if (flags[0],flags[-1]) != ('(',')'):
flags = '(%s)' % flags
else:
flags = None
if date_time:
date_time = Time2Internaldate(date_time)
else:
date_time = None
self.literal = self.mapCRLF_cre.sub(CRLF, message)
try:
return self._simple_command(name, mailbox, flags, date_time, **kw)
finally:
self._release_state_change()
def authenticate(self, mechanism, authobject, **kw):
"""(typ, [data]) = authenticate(mechanism, authobject)
Authenticate command - requires response processing.
'mechanism' specifies which authentication mechanism is to
be used - it must appear in <instance>.capabilities in the
form AUTH=<mechanism>.
'authobject' must be a callable object:
data = authobject(response)
It will be called to process server continuation responses.
It should return data that will be encoded and sent to server.
It should return None if the client abort response '*' should
be sent instead."""
self.literal = _Authenticator(authobject).process
try:
typ, dat = self._simple_command('AUTHENTICATE', mechanism.upper())
if typ != 'OK':
self._deliver_exc(self.error, dat[-1], kw)
self.state = AUTH
if __debug__: self._log(1, 'state => AUTH')
finally:
self._release_state_change()
return self._deliver_dat(typ, dat, kw)
def capability(self, **kw):
"""(typ, [data]) = capability()
Fetch capabilities list from server."""
name = 'CAPABILITY'
kw['untagged_response'] = name
return self._simple_command(name, **kw)
def check(self, **kw):
"""(typ, [data]) = check()
Checkpoint mailbox on server."""
return self._simple_command('CHECK', **kw)
def close(self, **kw):
"""(typ, [data]) = close()
Close currently selected mailbox.
Deleted messages are removed from writable mailbox.
This is the recommended command before 'LOGOUT'."""
if self.state != 'SELECTED':
raise self.error('No mailbox selected.')
try:
typ, dat = self._simple_command('CLOSE')
finally:
self.state = AUTH
if __debug__: self._log(1, 'state => AUTH')
self._release_state_change()
return self._deliver_dat(typ, dat, kw)
def copy(self, message_set, new_mailbox, **kw):
"""(typ, [data]) = copy(message_set, new_mailbox)
Copy 'message_set' messages onto end of 'new_mailbox'."""
return self._simple_command('COPY', message_set, new_mailbox, **kw)
def create(self, mailbox, **kw):
"""(typ, [data]) = create(mailbox)
Create new mailbox."""
return self._simple_command('CREATE', mailbox, **kw)
def delete(self, mailbox, **kw):
"""(typ, [data]) = delete(mailbox)
Delete old mailbox."""
return self._simple_command('DELETE', mailbox, **kw)
def deleteacl(self, mailbox, who, **kw):
"""(typ, [data]) = deleteacl(mailbox, who)
Delete the ACLs (remove any rights) set for who on mailbox."""
return self._simple_command('DELETEACL', mailbox, who, **kw)
def examine(self, mailbox='INBOX', **kw):
"""(typ, [data]) = examine(mailbox='INBOX')
Select a mailbox for READ-ONLY access. (Flushes all untagged responses.)
'data' is count of messages in mailbox ('EXISTS' response).
Mandated responses are ('FLAGS', 'EXISTS', 'RECENT', 'UIDVALIDITY'), so
other responses should be obtained via "response('FLAGS')" etc."""
return self.select(mailbox=mailbox, readonly=True, **kw)
def expunge(self, **kw):
"""(typ, [data]) = expunge()
Permanently remove deleted items from selected mailbox.
Generates 'EXPUNGE' response for each deleted message.
'data' is list of 'EXPUNGE'd message numbers in order received."""
name = 'EXPUNGE'
kw['untagged_response'] = name
return self._simple_command(name, **kw)
def fetch(self, message_set, message_parts, **kw):
"""(typ, [data, ...]) = fetch(message_set, message_parts)
Fetch (parts of) messages.
'message_parts' should be a string of selected parts
enclosed in parentheses, eg: "(UID BODY[TEXT])".
'data' are tuples of message part envelope and data,
followed by a string containing the trailer."""
name = 'FETCH'
kw['untagged_response'] = name
return self._simple_command(name, message_set, message_parts, **kw)
def getacl(self, mailbox, **kw):
"""(typ, [data]) = getacl(mailbox)
Get the ACLs for a mailbox."""
kw['untagged_response'] = 'ACL'
return self._simple_command('GETACL', mailbox, **kw)
def getannotation(self, mailbox, entry, attribute, **kw):
"""(typ, [data]) = getannotation(mailbox, entry, attribute)
Retrieve ANNOTATIONs."""
kw['untagged_response'] = 'ANNOTATION'
return self._simple_command('GETANNOTATION', mailbox, entry, attribute, **kw)
def getquota(self, root, **kw):
"""(typ, [data]) = getquota(root)
Get the quota root's resource usage and limits.
(Part of the IMAP4 QUOTA extension defined in rfc2087.)"""
kw['untagged_response'] = 'QUOTA'
return self._simple_command('GETQUOTA', root, **kw)
def getquotaroot(self, mailbox, **kw):
# Hmmm, this is non-std! Left for backwards-compatibility, sigh.
# NB: usage should have been defined as:
# (typ, [QUOTAROOT responses...]) = getquotaroot(mailbox)
# (typ, [QUOTA responses...]) = response('QUOTA')
"""(typ, [[QUOTAROOT responses...], [QUOTA responses...]]) = getquotaroot(mailbox)
Get the list of quota roots for the named mailbox."""
typ, dat = self._simple_command('GETQUOTAROOT', mailbox)
typ, quota = self._untagged_response(typ, dat, 'QUOTA')
typ, quotaroot = self._untagged_response(typ, dat, 'QUOTAROOT')
return self._deliver_dat(typ, [quotaroot, quota], kw)
def id(self, *kv_pairs, **kw):
"""(typ, [data]) = <instance>.id(kv_pairs)
'kv_pairs' is a possibly empty list of keys and values.
'data' is a list of ID key value pairs or NIL.
NB: a single argument is assumed to be correctly formatted and is passed through unchanged
(for backward compatibility with earlier version).
Exchange information for problem analysis and determination.
The ID extension is defined in RFC 2971. """
name = 'ID'
kw['untagged_response'] = name
if not kv_pairs:
data = 'NIL'
elif len(kv_pairs) == 1:
data = kv_pairs[0] # Assume invoker passing correctly formatted string (back-compat)
else:
data = '(%s)' % ' '.join([(arg and self._quote(arg) or 'NIL') for arg in kv_pairs])
return self._simple_command(name, (data,), **kw)
def idle(self, timeout=None, **kw):
""""(typ, [data]) = idle(timeout=None)
Put server into IDLE mode until server notifies some change,
or 'timeout' (secs) occurs (default: 29 minutes),
or another IMAP4 command is scheduled."""
name = 'IDLE'
self.literal = _IdleCont(self, timeout).process
try:
return self._simple_command(name, **kw)
finally:
self._release_state_change()
def list(self, directory='""', pattern='*', **kw):
"""(typ, [data]) = list(directory='""', pattern='*')
List mailbox names in directory matching pattern.
'data' is list of LIST responses.
NB: for 'pattern':
% matches all except separator ( so LIST "" "%" returns names at root)
* matches all (so LIST "" "*" returns whole directory tree from root)"""
name = 'LIST'
kw['untagged_response'] = name
return self._simple_command(name, directory, pattern, **kw)
def login(self, user, password, **kw):
"""(typ, [data]) = login(user, password)
Identify client using plaintext password.
NB: 'password' will be quoted."""
try:
typ, dat = self._simple_command('LOGIN', user, self._quote(password))
if typ != 'OK':
self._deliver_exc(self.error, dat[-1], kw)
self.state = AUTH
if __debug__: self._log(1, 'state => AUTH')
finally:
self._release_state_change()
return self._deliver_dat(typ, dat, kw)
def login_cram_md5(self, user, password, **kw):
"""(typ, [data]) = login_cram_md5(user, password)
Force use of CRAM-MD5 authentication."""
self.user, self.password = user, password
return self.authenticate('CRAM-MD5', self._CRAM_MD5_AUTH, **kw)
def _CRAM_MD5_AUTH(self, challenge):
"""Authobject to use with CRAM-MD5 authentication."""
import hmac
return self.user + " " + hmac.HMAC(self.password, challenge).hexdigest()
def logout(self, **kw):
"""(typ, [data]) = logout()
Shutdown connection to server.
Returns server 'BYE' response.
NB: You must call this to shut down threads before discarding an instance."""
self.state = LOGOUT
if __debug__: self._log(1, 'state => LOGOUT')
try:
try:
typ, dat = self._simple_command('LOGOUT')
except:
typ, dat = 'NO', ['%s: %s' % sys.exc_info()[:2]]
if __debug__: self._log(1, dat)
self._close_threads()
finally:
self._release_state_change()
if __debug__: self._log(1, 'connection closed')
bye = self._get_untagged_response('BYE', leave=True)
if bye:
typ, dat = 'BYE', bye
return self._deliver_dat(typ, dat, kw)
def lsub(self, directory='""', pattern='*', **kw):
"""(typ, [data, ...]) = lsub(directory='""', pattern='*')
List 'subscribed' mailbox names in directory matching pattern.
'data' are tuples of message part envelope and data."""
name = 'LSUB'
kw['untagged_response'] = name
return self._simple_command(name, directory, pattern, **kw)
def myrights(self, mailbox, **kw):
"""(typ, [data]) = myrights(mailbox)
Show my ACLs for a mailbox (i.e. the rights that I have on mailbox)."""
name = 'MYRIGHTS'
kw['untagged_response'] = name
return self._simple_command(name, mailbox, **kw)
def namespace(self, **kw):
"""(typ, [data, ...]) = namespace()
Returns IMAP namespaces ala rfc2342."""
name = 'NAMESPACE'
kw['untagged_response'] = name
return self._simple_command(name, **kw)
def noop(self, **kw):
"""(typ, [data]) = noop()
Send NOOP command."""
if __debug__: self._dump_ur(3)
return self._simple_command('NOOP', **kw)
def partial(self, message_num, message_part, start, length, **kw):
"""(typ, [data, ...]) = partial(message_num, message_part, start, length)
Fetch truncated part of a message.
'data' is tuple of message part envelope and data.
NB: obsolete."""
name = 'PARTIAL'
kw['untagged_response'] = 'FETCH'
return self._simple_command(name, message_num, message_part, start, length, **kw)
def proxyauth(self, user, **kw):
"""(typ, [data]) = proxyauth(user)
Assume authentication as 'user'.
(Allows an authorised administrator to proxy into any user's mailbox.)"""
try:
return self._simple_command('PROXYAUTH', user, **kw)
finally:
self._release_state_change()
def rename(self, oldmailbox, newmailbox, **kw):
"""(typ, [data]) = rename(oldmailbox, newmailbox)
Rename old mailbox name to new."""
return self._simple_command('RENAME', oldmailbox, newmailbox, **kw)
def search(self, charset, *criteria, **kw):
"""(typ, [data]) = search(charset, criterion, ...)
Search mailbox for matching messages.
'data' is space separated list of matching message numbers."""
name = 'SEARCH'
kw['untagged_response'] = name
if charset:
return self._simple_command(name, 'CHARSET', charset, *criteria, **kw)
return self._simple_command(name, *criteria, **kw)
def select(self, mailbox='INBOX', readonly=False, **kw):
"""(typ, [data]) = select(mailbox='INBOX', readonly=False)
Select a mailbox. (Restores any previous untagged responses.)
'data' is count of messages in mailbox ('EXISTS' response).
Mandated responses are ('FLAGS', 'EXISTS', 'RECENT', 'UIDVALIDITY'), so
other responses should be obtained via "response('FLAGS')" etc."""
self.commands_lock.acquire()
# Save state of old mailbox, restore state for new...
self.mailboxes[self.mailbox] = self.untagged_responses
self.untagged_responses = self.mailboxes.setdefault(mailbox, [])
self.commands_lock.release()
self.mailbox = mailbox
self.is_readonly = readonly and True or False
if readonly:
name = 'EXAMINE'
else:
name = 'SELECT'
try:
rqb = self._command(name, mailbox)
typ, dat = rqb.get_response('command: %s => %%s' % rqb.name)
if typ != 'OK':