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04da10c7a2
""" Jochen Hayek has reported a problem with some versions of IMAP4 servers that choose to mix the case in their CAPABILITIES response. The patch below fixes the problem. """
1002 lines
25 KiB
Python
1002 lines
25 KiB
Python
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"""IMAP4 client.
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Based on RFC 2060.
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Author: Piers Lauder <piers@cs.su.oz.au> December 1997.
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Authentication code contributed by Donn Cave <donn@u.washington.edu> June 1998.
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Public class: IMAP4
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Public variable: Debug
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Public functions: Internaldate2tuple
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Int2AP
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ParseFlags
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Time2Internaldate
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"""
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__version__ = "2.15"
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import binascii, re, socket, string, time, random, sys
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# Globals
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CRLF = '\r\n'
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Debug = 0
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IMAP4_PORT = 143
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AllowedVersions = ('IMAP4REV1', 'IMAP4') # Most recent first
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# Commands
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Commands = {
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# name valid states
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'APPEND': ('AUTH', 'SELECTED'),
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'AUTHENTICATE': ('NONAUTH',),
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'CAPABILITY': ('NONAUTH', 'AUTH', 'SELECTED', 'LOGOUT'),
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'CHECK': ('SELECTED',),
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'CLOSE': ('SELECTED',),
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'COPY': ('SELECTED',),
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'CREATE': ('AUTH', 'SELECTED'),
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'DELETE': ('AUTH', 'SELECTED'),
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'EXAMINE': ('AUTH', 'SELECTED'),
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'EXPUNGE': ('SELECTED',),
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'FETCH': ('SELECTED',),
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'LIST': ('AUTH', 'SELECTED'),
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'LOGIN': ('NONAUTH',),
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'LOGOUT': ('NONAUTH', 'AUTH', 'SELECTED', 'LOGOUT'),
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'LSUB': ('AUTH', 'SELECTED'),
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'NOOP': ('NONAUTH', 'AUTH', 'SELECTED', 'LOGOUT'),
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'PARTIAL': ('SELECTED',),
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'RENAME': ('AUTH', 'SELECTED'),
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'SEARCH': ('SELECTED',),
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'SELECT': ('AUTH', 'SELECTED'),
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'STATUS': ('AUTH', 'SELECTED'),
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'STORE': ('SELECTED',),
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'SUBSCRIBE': ('AUTH', 'SELECTED'),
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'UID': ('SELECTED',),
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'UNSUBSCRIBE': ('AUTH', 'SELECTED'),
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}
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# Patterns to match server responses
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Continuation = re.compile(r'\+( (?P<data>.*))?')
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Flags = re.compile(r'.*FLAGS \((?P<flags>[^\)]*)\)')
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InternalDate = re.compile(r'.*INTERNALDATE "'
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r'(?P<day>[ 123][0-9])-(?P<mon>[A-Z][a-z][a-z])-(?P<year>[0-9][0-9][0-9][0-9])'
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r' (?P<hour>[0-9][0-9]):(?P<min>[0-9][0-9]):(?P<sec>[0-9][0-9])'
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r' (?P<zonen>[-+])(?P<zoneh>[0-9][0-9])(?P<zonem>[0-9][0-9])'
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r'"')
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Literal = re.compile(r'(?P<data>.*) {(?P<size>\d+)}$')
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Response_code = re.compile(r'\[(?P<type>[A-Z-]+)( (?P<data>[^\]]*))?\]')
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Untagged_response = re.compile(r'\* (?P<type>[A-Z-]+)( (?P<data>.*))?')
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Untagged_status = re.compile(r'\* (?P<data>\d+) (?P<type>[A-Z-]+)( (?P<data2>.*))?')
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class IMAP4:
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"""IMAP4 client class.
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Instantiate with: IMAP4([host[, port]])
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host - host's name (default: localhost);
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port - port number (default: standard IMAP4 port).
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All IMAP4rev1 commands are supported by methods of the same
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name (in lower-case).
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All arguments to commands are converted to strings, except for
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AUTHENTICATE, and the last argument to APPEND which is passed as
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an IMAP4 literal. If necessary (the string contains
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white-space and isn't enclosed with either parentheses or
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double quotes) each string is quoted.
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Each command returns a tuple: (type, [data, ...]) where 'type'
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is usually 'OK' or 'NO', and 'data' is either the text from the
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tagged response, or untagged results from command.
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Errors raise the exception class <instance>.error("<reason>").
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IMAP4 server errors raise <instance>.abort("<reason>"),
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which is a sub-class of 'error'. Mailbox status changes
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from READ-WRITE to READ-ONLY raise the exception class
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<instance>.readonly("<reason>"), which is a sub-class of 'abort'.
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Note: to use this module, you must read the RFCs pertaining
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to the IMAP4 protocol, as the semantics of the arguments to
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each IMAP4 command are left to the invoker, not to mention
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the results.
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"""
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class error(Exception): pass # Logical errors - debug required
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class abort(error): pass # Service errors - close and retry
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class readonly(abort): pass # Mailbox status changed to READ-ONLY
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def __init__(self, host = '', port = IMAP4_PORT):
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self.host = host
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self.port = port
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self.debug = Debug
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self.state = 'LOGOUT'
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self.literal = None # A literal argument to a command
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self.tagged_commands = {} # Tagged commands awaiting response
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self.untagged_responses = {} # {typ: [data, ...], ...}
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self.continuation_response = '' # Last continuation response
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self.tagnum = 0
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# Open socket to server.
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self.open(host, port)
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# Create unique tag for this session,
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# and compile tagged response matcher.
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self.tagpre = Int2AP(random.randint(0, 31999))
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self.tagre = re.compile(r'(?P<tag>'
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+ self.tagpre
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+ r'\d+) (?P<type>[A-Z]+) (?P<data>.*)')
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# Get server welcome message,
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# request and store CAPABILITY response.
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if __debug__ and self.debug >= 1:
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_mesg('new IMAP4 connection, tag=%s' % self.tagpre)
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self.welcome = self._get_response()
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if self.untagged_responses.has_key('PREAUTH'):
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self.state = 'AUTH'
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elif self.untagged_responses.has_key('OK'):
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self.state = 'NONAUTH'
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# elif self.untagged_responses.has_key('BYE'):
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else:
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raise self.error(self.welcome)
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cap = 'CAPABILITY'
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self._simple_command(cap)
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if not self.untagged_responses.has_key(cap):
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raise self.error('no CAPABILITY response from server')
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self.capabilities = tuple(string.split(string.upper(self.untagged_responses[cap][-1])))
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if __debug__ and self.debug >= 3:
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_mesg('CAPABILITIES: %s' % `self.capabilities`)
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for version in AllowedVersions:
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if not version in self.capabilities:
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continue
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self.PROTOCOL_VERSION = version
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return
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raise self.error('server not IMAP4 compliant')
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def __getattr__(self, attr):
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# Allow UPPERCASE variants of IMAP4 command methods.
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if Commands.has_key(attr):
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return eval("self.%s" % string.lower(attr))
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raise AttributeError("Unknown IMAP4 command: '%s'" % attr)
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# Public methods
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def open(self, host, port):
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"""Setup 'self.sock' and 'self.file'."""
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self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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self.sock.connect(self.host, self.port)
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self.file = self.sock.makefile('r')
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def recent(self):
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"""Return most recent 'RECENT' responses if any exist,
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else prompt server for an update using the 'NOOP' command.
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(typ, [data]) = <instance>.recent()
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'data' is None if no new messages,
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else list of RECENT responses, most recent last.
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"""
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name = 'RECENT'
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typ, dat = self._untagged_response('OK', [None], name)
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if dat[-1]:
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return typ, dat
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typ, dat = self.noop() # Prod server for response
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return self._untagged_response(typ, dat, name)
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def response(self, code):
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"""Return data for response 'code' if received, or None.
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Old value for response 'code' is cleared.
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(code, [data]) = <instance>.response(code)
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"""
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return self._untagged_response(code, [None], string.upper(code))
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def socket(self):
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"""Return socket instance used to connect to IMAP4 server.
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socket = <instance>.socket()
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"""
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return self.sock
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# IMAP4 commands
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def append(self, mailbox, flags, date_time, message):
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"""Append message to named mailbox.
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(typ, [data]) = <instance>.append(mailbox, flags, date_time, message)
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"""
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name = 'APPEND'
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if flags:
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if (flags[0],flags[-1]) != ('(',')'):
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flags = '(%s)' % flags
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else:
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flags = None
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if date_time:
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date_time = Time2Internaldate(date_time)
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else:
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date_time = None
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self.literal = message
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return self._simple_command(name, mailbox, flags, date_time)
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def authenticate(self, mechanism, authobject):
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"""Authenticate command - requires response processing.
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'mechanism' specifies which authentication mechanism is to
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be used - it must appear in <instance>.capabilities in the
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form AUTH=<mechanism>.
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'authobject' must be a callable object:
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data = authobject(response)
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It will be called to process server continuation responses.
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It should return data that will be encoded and sent to server.
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It should return None if the client abort response '*' should
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be sent instead.
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"""
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mech = string.upper(mechanism)
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cap = 'AUTH=%s' % mech
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if not cap in self.capabilities:
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raise self.error("Server doesn't allow %s authentication." % mech)
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self.literal = _Authenticator(authobject).process
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typ, dat = self._simple_command('AUTHENTICATE', mech)
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if typ != 'OK':
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raise self.error(dat[-1])
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self.state = 'AUTH'
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return typ, dat
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def check(self):
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"""Checkpoint mailbox on server.
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(typ, [data]) = <instance>.check()
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"""
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return self._simple_command('CHECK')
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def close(self):
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"""Close currently selected mailbox.
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Deleted messages are removed from writable mailbox.
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This is the recommended command before 'LOGOUT'.
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(typ, [data]) = <instance>.close()
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"""
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try:
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typ, dat = self._simple_command('CLOSE')
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finally:
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self.state = 'AUTH'
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return typ, dat
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def copy(self, message_set, new_mailbox):
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"""Copy 'message_set' messages onto end of 'new_mailbox'.
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(typ, [data]) = <instance>.copy(message_set, new_mailbox)
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"""
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return self._simple_command('COPY', message_set, new_mailbox)
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def create(self, mailbox):
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"""Create new mailbox.
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(typ, [data]) = <instance>.create(mailbox)
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"""
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return self._simple_command('CREATE', mailbox)
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def delete(self, mailbox):
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"""Delete old mailbox.
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(typ, [data]) = <instance>.delete(mailbox)
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"""
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return self._simple_command('DELETE', mailbox)
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def expunge(self):
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"""Permanently remove deleted items from selected mailbox.
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Generates 'EXPUNGE' response for each deleted message.
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(typ, [data]) = <instance>.expunge()
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'data' is list of 'EXPUNGE'd message numbers in order received.
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"""
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name = 'EXPUNGE'
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typ, dat = self._simple_command(name)
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return self._untagged_response(typ, dat, name)
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def fetch(self, message_set, message_parts):
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"""Fetch (parts of) messages.
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(typ, [data, ...]) = <instance>.fetch(message_set, message_parts)
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'data' are tuples of message part envelope and data.
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"""
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name = 'FETCH'
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typ, dat = self._simple_command(name, message_set, message_parts)
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return self._untagged_response(typ, dat, name)
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def list(self, directory='""', pattern='*'):
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"""List mailbox names in directory matching pattern.
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(typ, [data]) = <instance>.list(directory='""', pattern='*')
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'data' is list of LIST responses.
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"""
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name = 'LIST'
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typ, dat = self._simple_command(name, directory, pattern)
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return self._untagged_response(typ, dat, name)
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def login(self, user, password):
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"""Identify client using plaintext password.
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(typ, [data]) = <instance>.list(user, password)
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"""
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typ, dat = self._simple_command('LOGIN', user, password)
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if typ != 'OK':
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raise self.error(dat[-1])
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self.state = 'AUTH'
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return typ, dat
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def logout(self):
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"""Shutdown connection to server.
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(typ, [data]) = <instance>.logout()
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Returns server 'BYE' response.
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"""
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self.state = 'LOGOUT'
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try: typ, dat = self._simple_command('LOGOUT')
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except: typ, dat = 'NO', ['%s: %s' % sys.exc_info()[:2]]
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self.file.close()
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self.sock.close()
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if self.untagged_responses.has_key('BYE'):
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return 'BYE', self.untagged_responses['BYE']
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return typ, dat
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def lsub(self, directory='""', pattern='*'):
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"""List 'subscribed' mailbox names in directory matching pattern.
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(typ, [data, ...]) = <instance>.lsub(directory='""', pattern='*')
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'data' are tuples of message part envelope and data.
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"""
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name = 'LSUB'
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typ, dat = self._simple_command(name, directory, pattern)
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return self._untagged_response(typ, dat, name)
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def noop(self):
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"""Send NOOP command.
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(typ, data) = <instance>.noop()
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"""
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if __debug__ and self.debug >= 3:
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_dump_ur(self.untagged_responses)
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return self._simple_command('NOOP')
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def partial(self, message_num, message_part, start, length):
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"""Fetch truncated part of a message.
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(typ, [data, ...]) = <instance>.partial(message_num, message_part, start, length)
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'data' is tuple of message part envelope and data.
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"""
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name = 'PARTIAL'
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typ, dat = self._simple_command(name, message_num, message_part, start, length)
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return self._untagged_response(typ, dat, 'FETCH')
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def rename(self, oldmailbox, newmailbox):
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"""Rename old mailbox name to new.
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(typ, data) = <instance>.rename(oldmailbox, newmailbox)
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"""
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return self._simple_command('RENAME', oldmailbox, newmailbox)
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def search(self, charset, criteria):
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"""Search mailbox for matching messages.
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(typ, [data]) = <instance>.search(charset, criteria)
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'data' is space separated list of matching message numbers.
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"""
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name = 'SEARCH'
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if charset:
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charset = 'CHARSET ' + charset
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typ, dat = self._simple_command(name, charset, criteria)
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return self._untagged_response(typ, dat, name)
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def select(self, mailbox='INBOX', readonly=None):
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"""Select a mailbox.
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Flush all untagged responses.
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(typ, [data]) = <instance>.select(mailbox='INBOX', readonly=None)
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'data' is count of messages in mailbox ('EXISTS' response).
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"""
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# Mandated responses are ('FLAGS', 'EXISTS', 'RECENT', 'UIDVALIDITY')
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self.untagged_responses = {} # Flush old responses.
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if readonly:
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name = 'EXAMINE'
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else:
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name = 'SELECT'
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typ, dat = self._simple_command(name, mailbox)
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if typ != 'OK':
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self.state = 'AUTH' # Might have been 'SELECTED'
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return typ, dat
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self.state = 'SELECTED'
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if not self.untagged_responses.has_key('READ-WRITE') \
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and not readonly:
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if __debug__ and self.debug >= 1: _dump_ur(self.untagged_responses)
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raise self.readonly('%s is not writable' % mailbox)
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return typ, self.untagged_responses.get('EXISTS', [None])
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def status(self, mailbox, names):
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"""Request named status conditions for mailbox.
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(typ, [data]) = <instance>.status(mailbox, names)
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"""
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name = 'STATUS'
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if self.PROTOCOL_VERSION == 'IMAP4':
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raise self.error('%s unimplemented in IMAP4 (obtain IMAP4rev1 server, or re-code)' % name)
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typ, dat = self._simple_command(name, mailbox, names)
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return self._untagged_response(typ, dat, name)
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def store(self, message_set, command, flag_list):
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"""Alters flag dispositions for messages in mailbox.
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(typ, [data]) = <instance>.store(message_set, command, flag_list)
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"""
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typ, dat = self._simple_command('STORE', message_set, command, flag_list)
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return self._untagged_response(typ, dat, 'FETCH')
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def subscribe(self, mailbox):
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"""Subscribe to new mailbox.
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(typ, [data]) = <instance>.subscribe(mailbox)
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"""
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return self._simple_command('SUBSCRIBE', mailbox)
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def uid(self, command, *args):
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"""Execute "command arg ..." with messages identified by UID,
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rather than message number.
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(typ, [data]) = <instance>.uid(command, arg1, arg2, ...)
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Returns response appropriate to 'command'.
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"""
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command = string.upper(command)
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if not Commands.has_key(command):
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raise self.error("Unknown IMAP4 UID command: %s" % command)
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if self.state not in Commands[command]:
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raise self.error('command %s illegal in state %s'
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% (command, self.state))
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name = 'UID'
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typ, dat = apply(self._simple_command, (name, command) + args)
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if command == 'SEARCH':
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name = 'SEARCH'
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else:
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name = 'FETCH'
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return self._untagged_response(typ, dat, name)
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|
def unsubscribe(self, mailbox):
|
|
"""Unsubscribe from old mailbox.
|
|
|
|
(typ, [data]) = <instance>.unsubscribe(mailbox)
|
|
"""
|
|
return self._simple_command('UNSUBSCRIBE', mailbox)
|
|
|
|
|
|
def xatom(self, name, *args):
|
|
"""Allow simple extension commands
|
|
notified by server in CAPABILITY response.
|
|
|
|
(typ, [data]) = <instance>.xatom(name, arg, ...)
|
|
"""
|
|
if name[0] != 'X' or not name in self.capabilities:
|
|
raise self.error('unknown extension command: %s' % name)
|
|
return apply(self._simple_command, (name,) + args)
|
|
|
|
|
|
|
|
# Private methods
|
|
|
|
|
|
def _append_untagged(self, typ, dat):
|
|
|
|
ur = self.untagged_responses
|
|
if __debug__ and self.debug >= 5:
|
|
_mesg('untagged_responses[%s] %s += %s' %
|
|
(typ, len(ur.get(typ,'')), dat))
|
|
if ur.has_key(typ):
|
|
ur[typ].append(dat)
|
|
else:
|
|
ur[typ] = [dat]
|
|
|
|
|
|
def _command(self, name, *args):
|
|
|
|
if self.state not in Commands[name]:
|
|
self.literal = None
|
|
raise self.error(
|
|
'command %s illegal in state %s' % (name, self.state))
|
|
|
|
for typ in ('OK', 'NO', 'BAD'):
|
|
if self.untagged_responses.has_key(typ):
|
|
del self.untagged_responses[typ]
|
|
|
|
if self.untagged_responses.has_key('READ-WRITE') \
|
|
and self.untagged_responses.has_key('READ-ONLY'):
|
|
del self.untagged_responses['READ-WRITE']
|
|
raise self.readonly('mailbox status changed to READ-ONLY')
|
|
|
|
tag = self._new_tag()
|
|
data = '%s %s' % (tag, name)
|
|
for d in args:
|
|
if d is None: continue
|
|
if type(d) is type(''):
|
|
l = len(string.split(d))
|
|
else:
|
|
l = 1
|
|
if l == 0 or l > 1 and (d[0],d[-1]) not in (('(',')'),('"','"')):
|
|
data = '%s "%s"' % (data, d)
|
|
else:
|
|
data = '%s %s' % (data, d)
|
|
|
|
literal = self.literal
|
|
if literal is not None:
|
|
self.literal = None
|
|
if type(literal) is type(self._command):
|
|
literator = literal
|
|
else:
|
|
literator = 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:
|
|
_mesg('> %s' % data)
|
|
|
|
if literal is None:
|
|
return tag
|
|
|
|
while 1:
|
|
# Wait for continuation response
|
|
|
|
while self._get_response():
|
|
if self.tagged_commands[tag]: # BAD/NO?
|
|
return tag
|
|
|
|
# Send literal
|
|
|
|
if literator:
|
|
literal = literator(self.continuation_response)
|
|
|
|
if __debug__ and self.debug >= 4:
|
|
_mesg('write 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)
|
|
|
|
if not literator:
|
|
break
|
|
|
|
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.
|
|
|
|
resp = self._get_line()
|
|
|
|
# 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 dat is None: dat = '' # Null untagged response
|
|
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:
|
|
_mesg('read 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()
|
|
|
|
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'))
|
|
|
|
if __debug__ and self.debug >= 1 and typ in ('NO', 'BAD'):
|
|
_mesg('%s response: %s' % (typ, dat))
|
|
|
|
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 self.abort('socket error: EOF')
|
|
|
|
# Protocol mandates all lines terminated by CRLF
|
|
|
|
line = line[:-2]
|
|
if __debug__ and self.debug >= 4:
|
|
_mesg('< %s' % line)
|
|
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:
|
|
_mesg("\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, *args):
|
|
|
|
return self._command_complete(name, apply(self._command, (name,) + args))
|
|
|
|
|
|
def _untagged_response(self, typ, dat, name):
|
|
|
|
if typ == 'NO':
|
|
return typ, dat
|
|
if not self.untagged_responses.has_key(name):
|
|
return typ, [None]
|
|
data = self.untagged_responses[name]
|
|
if __debug__ and self.debug >= 5:
|
|
_mesg('untagged_responses[%s] => %s' % (name, data))
|
|
del self.untagged_responses[name]
|
|
return typ, data
|
|
|
|
|
|
|
|
class _Authenticator:
|
|
|
|
"""Private class to provide en/decoding
|
|
for base64-based authentication conversation.
|
|
"""
|
|
|
|
def __init__(self, mechinst):
|
|
self.mech = mechinst # Callable object to provide/process data
|
|
|
|
def process(self, data):
|
|
ret = self.mech(self.decode(data))
|
|
if ret is None:
|
|
return '*' # Abort conversation
|
|
return self.encode(ret)
|
|
|
|
def encode(self, inp):
|
|
#
|
|
# Invoke binascii.b2a_base64 iteratively with
|
|
# short even length buffers, strip the trailing
|
|
# line feed from the result and append. "Even"
|
|
# means a number that factors to both 6 and 8,
|
|
# so when it gets to the end of the 8-bit input
|
|
# there's no partial 6-bit output.
|
|
#
|
|
oup = ''
|
|
while inp:
|
|
if len(inp) > 48:
|
|
t = inp[:48]
|
|
inp = inp[48:]
|
|
else:
|
|
t = inp
|
|
inp = ''
|
|
e = binascii.b2a_base64(t)
|
|
if e:
|
|
oup = oup + e[:-1]
|
|
return oup
|
|
|
|
def decode(self, inp):
|
|
if not inp:
|
|
return ''
|
|
return binascii.a2b_base64(inp)
|
|
|
|
|
|
|
|
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'
|
|
num = int(abs(num))
|
|
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__:
|
|
|
|
def _mesg(s):
|
|
# if len(s) > 70: s = '%.70s..' % s
|
|
sys.stderr.write('\t'+s+'\n')
|
|
sys.stderr.flush()
|
|
|
|
def _dump_ur(dict):
|
|
# Dump untagged responses (in `dict').
|
|
l = dict.items()
|
|
if not l: return
|
|
t = '\n\t\t'
|
|
j = string.join
|
|
l = map(lambda x,j=j:'%s: "%s"' % (x[0], x[1][0] and j(x[1], '" "') or ''), l)
|
|
_mesg('untagged responses dump:%s%s' % (t, j(l, t)))
|
|
|
|
|
|
|
|
if __debug__ and __name__ == '__main__':
|
|
|
|
import getpass, sys
|
|
|
|
host = ''
|
|
if sys.argv[1:]: host = sys.argv[1]
|
|
|
|
USER = getpass.getuser()
|
|
PASSWD = getpass.getpass("IMAP password for %s: " % (host or "localhost"))
|
|
|
|
test_seq1 = (
|
|
('login', (USER, PASSWD)),
|
|
('create', ('/tmp/xxx 1',)),
|
|
('rename', ('/tmp/xxx 1', '/tmp/yyy')),
|
|
('CREATE', ('/tmp/yyz 2',)),
|
|
('append', ('/tmp/yyz 2', None, None, 'From: anon@x.y.z\n\ndata...')),
|
|
('select', ('/tmp/yyz 2',)),
|
|
('search', (None, '(TO zork)')),
|
|
('partial', ('1', 'RFC822', 1, 1024)),
|
|
('store', ('1', 'FLAGS', '(\Deleted)')),
|
|
('expunge', ()),
|
|
('recent', ()),
|
|
('close', ()),
|
|
)
|
|
|
|
test_seq2 = (
|
|
('select', ()),
|
|
('response',('UIDVALIDITY',)),
|
|
('uid', ('SEARCH', 'ALL')),
|
|
('response', ('EXISTS',)),
|
|
('recent', ()),
|
|
('logout', ()),
|
|
)
|
|
|
|
def run(cmd, args):
|
|
typ, dat = apply(eval('M.%s' % cmd), args)
|
|
_mesg(' %s %s\n => %s %s' % (cmd, args, typ, dat))
|
|
return dat
|
|
|
|
Debug = 5
|
|
M = IMAP4(host)
|
|
_mesg('PROTOCOL_VERSION = %s' % M.PROTOCOL_VERSION)
|
|
|
|
for cmd,args in test_seq1:
|
|
run(cmd, args)
|
|
|
|
for ml in run('list', ('/tmp/', 'yy%')):
|
|
mo = re.match(r'.*"([^"]+)"$', ml)
|
|
if mo: path = mo.group(1)
|
|
else: path = string.split(ml)[-1]
|
|
run('delete', (path,))
|
|
|
|
for cmd,args in test_seq2:
|
|
dat = run(cmd, args)
|
|
|
|
if (cmd,args) != ('uid', ('SEARCH', 'ALL')):
|
|
continue
|
|
|
|
uid = string.split(dat[-1])[-1]
|
|
run('uid', ('FETCH', '%s' % uid,
|
|
'(FLAGS INTERNALDATE RFC822.SIZE RFC822.HEADER RFC822.TEXT)'))
|