| """IMAP4 client. |
| |
| Based on RFC 2060. |
| |
| Public class: IMAP4 |
| Public variable: Debug |
| Public functions: Internaldate2tuple |
| Int2AP |
| ParseFlags |
| Time2Internaldate |
| """ |
| |
| # Author: Piers Lauder <piers@cs.su.oz.au> December 1997. |
| # |
| # 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. |
| |
| __version__ = "2.49" |
| |
| import binascii, re, socket, time, random, sys |
| |
| __all__ = ["IMAP4", "Internaldate2tuple", |
| "Int2AP", "ParseFlags", "Time2Internaldate"] |
| |
| # Globals |
| |
| CRLF = '\r\n' |
| Debug = 0 |
| IMAP4_PORT = 143 |
| AllowedVersions = ('IMAP4REV1', 'IMAP4') # Most recent first |
| |
| # 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',), |
| 'GETACL': ('AUTH', 'SELECTED'), |
| 'LIST': ('AUTH', 'SELECTED'), |
| 'LOGIN': ('NONAUTH',), |
| 'LOGOUT': ('NONAUTH', 'AUTH', 'SELECTED', 'LOGOUT'), |
| 'LSUB': ('AUTH', 'SELECTED'), |
| 'NAMESPACE': ('AUTH', 'SELECTED'), |
| 'NOOP': ('NONAUTH', 'AUTH', 'SELECTED', 'LOGOUT'), |
| 'PARTIAL': ('SELECTED',), |
| 'RENAME': ('AUTH', 'SELECTED'), |
| 'SEARCH': ('SELECTED',), |
| 'SELECT': ('AUTH', 'SELECTED'), |
| 'SETACL': ('AUTH', 'SELECTED'), |
| 'SORT': ('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<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). |
| |
| All 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 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)"). |
| |
| 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'. 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. |
| |
| 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. |
| """ |
| |
| 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 |
| |
| mustquote = re.compile(r"[^\w!#$%&'*+,.:;<=>?^`|~-]") |
| |
| def __init__(self, host = '', port = IMAP4_PORT): |
| self.host = host |
| self.port = port |
| self.debug = Debug |
| self.state = 'LOGOUT' |
| self.literal = None # A literal argument to a command |
| self.tagged_commands = {} # Tagged commands awaiting response |
| self.untagged_responses = {} # {typ: [data, ...], ...} |
| self.continuation_response = '' # Last continuation response |
| self.is_readonly = None # READ-ONLY desired state |
| self.tagnum = 0 |
| |
| # Open socket to server. |
| |
| self.open(host, port) |
| |
| # Create unique tag for this session, |
| # and compile tagged response matcher. |
| |
| self.tagpre = Int2AP(random.randint(0, 31999)) |
| 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__: |
| if self.debug >= 1: |
| _mesg('imaplib version %s' % __version__) |
| _mesg('new 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' |
| 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(self.untagged_responses[cap][-1].upper().split()) |
| |
| if __debug__: |
| if self.debug >= 3: |
| _mesg('CAPABILITIES: %s' % `self.capabilities`) |
| |
| for version in AllowedVersions: |
| if not version in self.capabilities: |
| continue |
| self.PROTOCOL_VERSION = version |
| return |
| |
| raise self.error('server not IMAP4 compliant') |
| |
| |
| def __getattr__(self, attr): |
| # Allow UPPERCASE variants of IMAP4 command methods. |
| if Commands.has_key(attr): |
| return getattr(self, attr.lower()) |
| raise AttributeError("Unknown IMAP4 command: '%s'" % attr) |
| |
| |
| |
| # Overridable methods |
| |
| |
| def open(self, host, port): |
| """Setup connection to remote server on "host:port". |
| This connection will be used by the routines: |
| read, readline, send, shutdown. |
| """ |
| self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| self.sock.connect((self.host, self.port)) |
| self.file = self.sock.makefile('rb') |
| |
| |
| def read(self, size): |
| """Read 'size' bytes from remote.""" |
| return self.file.read(size) |
| |
| |
| def readline(self): |
| """Read line from remote.""" |
| return self.file.readline() |
| |
| |
| def send(self, data): |
| """Send data to remote.""" |
| bytes = len(data) |
| while bytes > 0: |
| sent = self.sock.send(data) |
| if sent == bytes: |
| break # avoid copy |
| data = data[sent:] |
| bytes = bytes - sent |
| |
| |
| def shutdown(self): |
| """Close I/O established in "open".""" |
| self.file.close() |
| self.sock.close() |
| |
| |
| def socket(self): |
| """Return socket instance used to connect to IMAP4 server. |
| |
| socket = <instance>.socket() |
| """ |
| return self.sock |
| |
| |
| |
| # Utility methods |
| |
| |
| def recent(self): |
| """Return most recent 'RECENT' responses if any exist, |
| else prompt server for an update using the 'NOOP' command. |
| |
| (typ, [data]) = <instance>.recent() |
| |
| 'data' is None if no new messages, |
| else list of RECENT responses, most recent last. |
| """ |
| name = 'RECENT' |
| typ, dat = self._untagged_response('OK', [None], name) |
| if dat[-1]: |
| return typ, dat |
| typ, dat = self.noop() # Prod server for response |
| return self._untagged_response(typ, dat, name) |
| |
| |
| def response(self, code): |
| """Return data for response 'code' if received, or None. |
| |
| Old value for response 'code' is cleared. |
| |
| (code, [data]) = <instance>.response(code) |
| """ |
| return self._untagged_response(code, [None], code.upper()) |
| |
| |
| |
| # IMAP4 commands |
| |
| |
| def append(self, mailbox, flags, date_time, message): |
| """Append message to named mailbox. |
| |
| (typ, [data]) = <instance>.append(mailbox, flags, date_time, message) |
| |
| 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 = message |
| return self._simple_command(name, mailbox, flags, date_time) |
| |
| |
| def authenticate(self, 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. |
| """ |
| mech = mechanism.upper() |
| cap = 'AUTH=%s' % mech |
| if not cap in self.capabilities: |
| raise self.error("Server doesn't allow %s authentication." % mech) |
| self.literal = _Authenticator(authobject).process |
| typ, dat = self._simple_command('AUTHENTICATE', mech) |
| if typ != 'OK': |
| raise self.error(dat[-1]) |
| self.state = 'AUTH' |
| return typ, dat |
| |
| |
| 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: |
| typ, dat = self._simple_command('CLOSE') |
| 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, dat, name) |
| |
| |
| def fetch(self, message_set, message_parts): |
| """Fetch (parts of) messages. |
| |
| (typ, [data, ...]) = <instance>.fetch(message_set, message_parts) |
| |
| '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. |
| """ |
| name = 'FETCH' |
| typ, dat = self._simple_command(name, message_set, message_parts) |
| return self._untagged_response(typ, dat, name) |
| |
| |
| def getacl(self, mailbox): |
| """Get the ACLs for a mailbox. |
| |
| (typ, [data]) = <instance>.getacl(mailbox) |
| """ |
| typ, dat = self._simple_command('GETACL', mailbox) |
| return self._untagged_response(typ, dat, 'ACL') |
| |
| |
| 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, dat, name) |
| |
| |
| def login(self, user, password): |
| """Identify client using plaintext password. |
| |
| (typ, [data]) = <instance>.login(user, password) |
| |
| NB: 'password' will be quoted. |
| """ |
| #if not 'AUTH=LOGIN' in self.capabilities: |
| # raise self.error("Server doesn't allow LOGIN authentication." % mech) |
| typ, dat = self._simple_command('LOGIN', user, self._quote(password)) |
| if typ != 'OK': |
| raise self.error(dat[-1]) |
| 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: typ, dat = 'NO', ['%s: %s' % sys.exc_info()[:2]] |
| self.shutdown() |
| 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, dat, name) |
| |
| |
| def namespace(self): |
| """ Returns IMAP namespaces ala rfc2342 |
| |
| (typ, [data, ...]) = <instance>.namespace() |
| """ |
| name = 'NAMESPACE' |
| typ, dat = self._simple_command(name) |
| return self._untagged_response(typ, dat, name) |
| |
| |
| def noop(self): |
| """Send NOOP command. |
| |
| (typ, data) = <instance>.noop() |
| """ |
| if __debug__: |
| if self.debug >= 3: |
| _dump_ur(self.untagged_responses) |
| return self._simple_command('NOOP') |
| |
| |
| def partial(self, message_num, message_part, start, length): |
| """Fetch truncated part of a message. |
| |
| (typ, [data, ...]) = <instance>.partial(message_num, message_part, start, length) |
| |
| 'data' is tuple of message part envelope and data. |
| """ |
| name = 'PARTIAL' |
| typ, dat = self._simple_command(name, message_num, message_part, start, length) |
| return self._untagged_response(typ, dat, 'FETCH') |
| |
| |
| 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 search(self, charset, *criteria): |
| """Search mailbox for matching messages. |
| |
| (typ, [data]) = <instance>.search(charset, criterium, ...) |
| |
| 'data' is space separated list of matching message numbers. |
| """ |
| name = 'SEARCH' |
| if charset: |
| typ, dat = apply(self._simple_command, (name, 'CHARSET', charset) + criteria) |
| else: |
| typ, dat = apply(self._simple_command, (name,) + criteria) |
| return self._untagged_response(typ, dat, name) |
| |
| |
| def select(self, mailbox='INBOX', readonly=None): |
| """Select a mailbox. |
| |
| Flush all untagged responses. |
| |
| (typ, [data]) = <instance>.select(mailbox='INBOX', readonly=None) |
| |
| 'data' is count of messages in mailbox ('EXISTS' response). |
| """ |
| # Mandated responses are ('FLAGS', 'EXISTS', 'RECENT', 'UIDVALIDITY') |
| self.untagged_responses = {} # Flush old responses. |
| self.is_readonly = readonly |
| if readonly: |
| name = 'EXAMINE' |
| else: |
| name = 'SELECT' |
| typ, dat = self._simple_command(name, mailbox) |
| if typ != 'OK': |
| self.state = 'AUTH' # Might have been 'SELECTED' |
| return typ, dat |
| self.state = 'SELECTED' |
| if self.untagged_responses.has_key('READ-ONLY') \ |
| and not readonly: |
| if __debug__: |
| if self.debug >= 1: |
| _dump_ur(self.untagged_responses) |
| raise self.readonly('%s is not writable' % mailbox) |
| return typ, self.untagged_responses.get('EXISTS', [None]) |
| |
| |
| def setacl(self, mailbox, who, what): |
| """Set a mailbox acl. |
| |
| (typ, [data]) = <instance>.create(mailbox, who, what) |
| """ |
| return self._simple_command('SETACL', mailbox, who, what) |
| |
| |
| def sort(self, sort_criteria, charset, *search_criteria): |
| """IMAP4rev1 extension SORT command. |
| |
| (typ, [data]) = <instance>.sort(sort_criteria, charset, search_criteria, ...) |
| """ |
| name = 'SORT' |
| #if not name in self.capabilities: # Let the server decide! |
| # raise self.error('unimplemented extension command: %s' % name) |
| if (sort_criteria[0],sort_criteria[-1]) != ('(',')'): |
| sort_criteria = '(%s)' % sort_criteria |
| typ, dat = apply(self._simple_command, (name, sort_criteria, charset) + search_criteria) |
| return self._untagged_response(typ, dat, name) |
| |
| |
| def status(self, mailbox, names): |
| """Request named status conditions for mailbox. |
| |
| (typ, [data]) = <instance>.status(mailbox, names) |
| """ |
| name = 'STATUS' |
| #if self.PROTOCOL_VERSION == 'IMAP4': # Let the server decide! |
| # raise self.error('%s unimplemented in IMAP4 (obtain IMAP4rev1 server, or re-code)' % name) |
| typ, dat = self._simple_command(name, mailbox, names) |
| return self._untagged_response(typ, dat, name) |
| |
| |
| def store(self, message_set, command, flags): |
| """Alters flag dispositions for messages in mailbox. |
| |
| (typ, [data]) = <instance>.store(message_set, command, flags) |
| """ |
| if (flags[0],flags[-1]) != ('(',')'): |
| flags = '(%s)' % flags # Avoid quoting the flags |
| typ, dat = self._simple_command('STORE', message_set, command, flags) |
| return self._untagged_response(typ, dat, '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 arg ..." with messages identified by UID, |
| rather than message number. |
| |
| (typ, [data]) = <instance>.uid(command, arg1, arg2, ...) |
| |
| Returns response appropriate to 'command'. |
| """ |
| command = command.upper() |
| if not Commands.has_key(command): |
| raise self.error("Unknown IMAP4 UID command: %s" % command) |
| if self.state not in Commands[command]: |
| raise self.error('command %s illegal in state %s' |
| % (command, self.state)) |
| name = 'UID' |
| typ, dat = apply(self._simple_command, (name, command) + args) |
| if command in ('SEARCH', 'SORT'): |
| name = command |
| else: |
| name = 'FETCH' |
| return self._untagged_response(typ, dat, name) |
| |
| |
| 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. |
| |
| Assumes command is legal in current state. |
| |
| (typ, [data]) = <instance>.xatom(name, arg, ...) |
| |
| Returns response appropriate to extension command `name'. |
| """ |
| name = name.upper() |
| #if not name in self.capabilities: # Let the server decide! |
| # raise self.error('unknown extension command: %s' % name) |
| if not Commands.has_key(name): |
| Commands[name] = (self.state,) |
| return apply(self._simple_command, (name,) + args) |
| |
| |
| |
| # Private methods |
| |
| |
| def _append_untagged(self, typ, dat): |
| |
| if dat is None: dat = '' |
| ur = self.untagged_responses |
| if __debug__: |
| if 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 _check_bye(self): |
| bye = self.untagged_responses.get('BYE') |
| if bye: |
| raise self.abort(bye[-1]) |
| |
| |
| 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-ONLY') \ |
| and not self.is_readonly: |
| raise self.readonly('mailbox status changed to READ-ONLY') |
| |
| tag = self._new_tag() |
| data = '%s %s' % (tag, name) |
| for arg in args: |
| if arg is None: continue |
| data = '%s %s' % (data, self._checkquote(arg)) |
| |
| 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)) |
| |
| if __debug__: |
| if self.debug >= 4: |
| _mesg('> %s' % data) |
| else: |
| _log('> %s' % data) |
| |
| try: |
| self.send('%s%s' % (data, CRLF)) |
| except (socket.error, OSError), val: |
| raise self.abort('socket error: %s' % val) |
| |
| 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__: |
| if self.debug >= 4: |
| _mesg('write literal size %s' % len(literal)) |
| |
| try: |
| self.send(literal) |
| self.send(CRLF) |
| except (socket.error, OSError), val: |
| raise self.abort('socket error: %s' % val) |
| |
| if not literator: |
| break |
| |
| return tag |
| |
| |
| def _command_complete(self, name, tag): |
| self._check_bye() |
| 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)) |
| self._check_bye() |
| 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) response... |
| |
| 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 = int(self.mo.group('size')) |
| if __debug__: |
| if self.debug >= 4: |
| _mesg('read literal size %s' % size) |
| data = self.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__: |
| if self.debug >= 1 and typ in ('NO', 'BAD', 'BYE'): |
| _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 |
| |
| # Some have reported "unexpected response" exceptions. |
| # Note that ignoring them here causes loops. |
| # Instead, send me details of the unexpected response and |
| # I'll update the code in `_get_response()'. |
| |
| try: |
| self._get_response() |
| except self.abort, val: |
| if __debug__: |
| if self.debug >= 1: |
| print_log() |
| raise |
| |
| |
| def _get_line(self): |
| |
| line = self.readline() |
| if not line: |
| raise self.abort('socket error: EOF') |
| |
| # Protocol mandates all lines terminated by CRLF |
| |
| line = line[:-2] |
| if __debug__: |
| if self.debug >= 4: |
| _mesg('< %s' % line) |
| else: |
| _log('< %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__: |
| if 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 _checkquote(self, arg): |
| |
| # Must quote command args if non-alphanumeric chars present, |
| # and not already quoted. |
| |
| if type(arg) is not type(''): |
| return arg |
| if (arg[0],arg[-1]) in (('(',')'),('"','"')): |
| return arg |
| if self.mustquote.search(arg) is None: |
| return arg |
| return self._quote(arg) |
| |
| |
| def _quote(self, arg): |
| |
| arg = arg.replace('\\', '\\\\') |
| arg = arg.replace('"', '\\"') |
| |
| return '"%s"' % arg |
| |
| |
| 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__: |
| if 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') |
| |
| day = int(mo.group('day')) |
| year = int(mo.group('year')) |
| hour = int(mo.group('hour')) |
| min = int(mo.group('min')) |
| sec = int(mo.group('sec')) |
| zoneh = int(mo.group('zoneh')) |
| zonem = int(mo.group('zonem')) |
| |
| # 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(mo.group('flags').split()) |
| |
| |
| 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) or dttype is type(1.1): |
| 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, secs=None): |
| if secs is None: |
| secs = time.time() |
| tm = time.strftime('%M:%S', time.localtime(secs)) |
| sys.stderr.write(' %s.%02d %s\n' % (tm, (secs*100)%100, s)) |
| sys.stderr.flush() |
| |
| def _dump_ur(dict): |
| # Dump untagged responses (in `dict'). |
| l = dict.items() |
| if not l: return |
| t = '\n\t\t' |
| l = map(lambda x:'%s: "%s"' % (x[0], x[1][0] and '" "'.join(x[1]) or ''), l) |
| _mesg('untagged responses dump:%s%s' % (t, t.join(l))) |
| |
| _cmd_log = [] # Last `_cmd_log_len' interactions |
| _cmd_log_len = 10 |
| |
| def _log(line): |
| # Keep log of last `_cmd_log_len' interactions for debugging. |
| if len(_cmd_log) == _cmd_log_len: |
| del _cmd_log[0] |
| _cmd_log.append((time.time(), line)) |
| |
| def print_log(): |
| _mesg('last %d IMAP4 interactions:' % len(_cmd_log)) |
| for secs,line in _cmd_log: |
| _mesg(line, secs) |
| |
| |
| |
| if __name__ == '__main__': |
| |
| import getopt, getpass |
| |
| try: |
| optlist, args = getopt.getopt(sys.argv[1:], 'd:') |
| except getopt.error, val: |
| pass |
| |
| for opt,val in optlist: |
| if opt == '-d': |
| Debug = int(val) |
| |
| if not args: args = ('',) |
| |
| host = args[0] |
| |
| USER = getpass.getuser() |
| PASSWD = getpass.getpass("IMAP password for %s on %s: " % (USER, host or "localhost")) |
| |
| test_mesg = 'From: %(user)s@localhost%(lf)sSubject: IMAP4 test%(lf)s%(lf)sdata...%(lf)s' % {'user':USER, 'lf':CRLF} |
| 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, test_mesg)), |
| ('list', ('/tmp', 'yy*')), |
| ('select', ('/tmp/yyz 2',)), |
| ('search', (None, 'SUBJECT', 'test')), |
| ('partial', ('1', 'RFC822', 1, 1024)), |
| ('store', ('1', 'FLAGS', '(\Deleted)')), |
| ('namespace', ()), |
| ('expunge', ()), |
| ('recent', ()), |
| ('close', ()), |
| ) |
| |
| test_seq2 = ( |
| ('select', ()), |
| ('response',('UIDVALIDITY',)), |
| ('uid', ('SEARCH', 'ALL')), |
| ('response', ('EXISTS',)), |
| ('append', (None, None, None, test_mesg)), |
| ('recent', ()), |
| ('logout', ()), |
| ) |
| |
| def run(cmd, args): |
| _mesg('%s %s' % (cmd, args)) |
| typ, dat = apply(getattr(M, cmd), args) |
| _mesg('%s => %s %s' % (cmd, typ, dat)) |
| return dat |
| |
| try: |
| M = IMAP4(host) |
| _mesg('PROTOCOL_VERSION = %s' % M.PROTOCOL_VERSION) |
| _mesg('CAPABILITIES = %s' % `M.capabilities`) |
| |
| 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 = ml.split()[-1] |
| run('delete', (path,)) |
| |
| for cmd,args in test_seq2: |
| dat = run(cmd, args) |
| |
| if (cmd,args) != ('uid', ('SEARCH', 'ALL')): |
| continue |
| |
| uid = dat[-1].split() |
| if not uid: continue |
| run('uid', ('FETCH', '%s' % uid[-1], |
| '(FLAGS INTERNALDATE RFC822.SIZE RFC822.HEADER RFC822.TEXT)')) |
| |
| print '\nAll tests OK.' |
| |
| except: |
| print '\nTests failed.' |
| |
| if not Debug: |
| print ''' |
| If you would like to see debugging output, |
| try: %s -d5 |
| ''' % sys.argv[0] |
| |
| raise |