1456 lines
44 KiB
Python
1456 lines
44 KiB
Python
"""IMAP4 client.
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Based on RFC 2060.
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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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# Author: Piers Lauder <piers@cs.su.oz.au> December 1997.
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#
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# Authentication code contributed by Donn Cave <donn@u.washington.edu> June 1998.
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# String method conversion by ESR, February 2001.
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# GET/SETACL contributed by Anthony Baxter <anthony@interlink.com.au> April 2001.
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# IMAP4_SSL contributed by Tino Lange <Tino.Lange@isg.de> March 2002.
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# GET/SETQUOTA contributed by Andreas Zeidler <az@kreativkombinat.de> June 2002.
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# PROXYAUTH contributed by Rick Holbert <holbert.13@osu.edu> November 2002.
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__version__ = "2.54"
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import binascii, os, random, re, socket, sys, time
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__all__ = ["IMAP4", "IMAP4_SSL", "Internaldate2tuple",
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"Int2AP", "ParseFlags", "Time2Internaldate"]
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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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IMAP4_SSL_PORT = 993
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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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'GETACL': ('AUTH', 'SELECTED'),
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'GETQUOTA': ('AUTH', 'SELECTED'),
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'GETQUOTAROOT': ('AUTH', '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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'NAMESPACE': ('AUTH', 'SELECTED'),
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'NOOP': ('NONAUTH', 'AUTH', 'SELECTED', 'LOGOUT'),
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'PARTIAL': ('SELECTED',), # NB: obsolete
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'PROXYAUTH': ('AUTH',),
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'RENAME': ('AUTH', 'SELECTED'),
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'SEARCH': ('SELECTED',),
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'SELECT': ('AUTH', 'SELECTED'),
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'SETACL': ('AUTH', 'SELECTED'),
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'SETQUOTA': ('AUTH', 'SELECTED'),
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'SORT': ('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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'THREAD': ('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<size>\d+)}$')
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MapCRLF = re.compile(r'\r\n|\r|\n')
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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 any
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non-printing characters or white-space and isn't enclosed with
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either parentheses or double quotes) each string is quoted.
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However, the 'password' argument to the LOGIN command is always
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quoted. If you want to avoid having an argument string quoted
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(eg: the 'flags' argument to STORE) then enclose the string in
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parentheses (eg: "(\Deleted)").
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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. Each 'data'
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is either a string, or a tuple. If a tuple, then the first part
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is the header of the response, and the second part contains
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the data (ie: 'literal' value).
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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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"error" exceptions imply a program error.
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"abort" exceptions imply the connection should be reset, and
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the command re-tried.
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"readonly" exceptions imply the command should be re-tried.
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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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mustquote = re.compile(r"[^\w!#$%&'*+,.:;<=>?^`|~-]")
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def __init__(self, host = '', port = IMAP4_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.is_readonly = None # READ-ONLY desired state
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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__:
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self._cmd_log_len = 10
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self._cmd_log_idx = 0
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self._cmd_log = {} # Last `_cmd_log_len' interactions
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if self.debug >= 1:
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self._mesg('imaplib version %s' % __version__)
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self._mesg('new IMAP4 connection, tag=%s' % self.tagpre)
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self.welcome = self._get_response()
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if 'PREAUTH' in self.untagged_responses:
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self.state = 'AUTH'
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elif 'OK' in self.untagged_responses:
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self.state = 'NONAUTH'
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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 cap in self.untagged_responses:
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raise self.error('no CAPABILITY response from server')
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self.capabilities = tuple(self.untagged_responses[cap][-1].upper().split())
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if __debug__:
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if self.debug >= 3:
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self._mesg('CAPABILITIES: %r' % (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 attr in Commands:
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return getattr(self, attr.lower())
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raise AttributeError("Unknown IMAP4 command: '%s'" % attr)
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# Overridable methods
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def open(self, host = '', port = IMAP4_PORT):
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"""Setup connection to remote server on "host:port"
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(default: localhost:standard IMAP4 port).
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This connection will be used by the routines:
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read, readline, send, shutdown.
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"""
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self.host = host
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self.port = port
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self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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self.sock.connect((host, port))
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self.file = self.sock.makefile('rb')
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def read(self, size):
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"""Read 'size' bytes from remote."""
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return self.file.read(size)
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def readline(self):
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"""Read line from remote."""
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return self.file.readline()
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def send(self, data):
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"""Send data to remote."""
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self.sock.sendall(data)
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def shutdown(self):
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"""Close I/O established in "open"."""
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self.file.close()
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self.sock.close()
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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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# Utility methods
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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], code.upper())
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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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All args except `message' can be None.
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"""
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name = 'APPEND'
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if not mailbox:
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mailbox = 'INBOX'
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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 = MapCRLF.sub(CRLF, 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 = mechanism.upper()
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# XXX: shouldn't this code be removed, not commented out?
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#cap = 'AUTH=%s' % mech
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#if not cap in self.capabilities: # Let the server decide!
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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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'message_parts' should be a string of selected parts
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enclosed in parentheses, eg: "(UID BODY[TEXT])".
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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 getacl(self, mailbox):
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"""Get the ACLs for a mailbox.
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(typ, [data]) = <instance>.getacl(mailbox)
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"""
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typ, dat = self._simple_command('GETACL', mailbox)
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return self._untagged_response(typ, dat, 'ACL')
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def getquota(self, root):
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"""Get the quota root's resource usage and limits.
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Part of the IMAP4 QUOTA extension defined in rfc2087.
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(typ, [data]) = <instance>.getquota(root)
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"""
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typ, dat = self._simple_command('GETQUOTA', root)
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return self._untagged_response(typ, dat, 'QUOTA')
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def getquotaroot(self, mailbox):
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"""Get the list of quota roots for the named mailbox.
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(typ, [[QUOTAROOT responses...], [QUOTA responses]]) = <instance>.getquotaroot(mailbox)
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"""
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typ, dat = self._simple_command('GETQUOTA', mailbox)
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typ, quota = self._untagged_response(typ, dat, 'QUOTA')
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typ, quotaroot = self._untagged_response(typ, dat, 'QUOTAROOT')
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return typ, [quotaroot, quota]
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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>.login(user, password)
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NB: 'password' will be quoted.
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"""
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typ, dat = self._simple_command('LOGIN', user, self._quote(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 login_cram_md5(self, user, password):
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""" Force use of CRAM-MD5 authentication.
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(typ, [data]) = <instance>.login_cram_md5(user, password)
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"""
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self.user, self.password = user, password
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return self.authenticate('CRAM-MD5', self._CRAM_MD5_AUTH)
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def _CRAM_MD5_AUTH(self, challenge):
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""" Authobject to use with CRAM-MD5 authentication. """
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import hmac
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return self.user + " " + hmac.HMAC(self.password, challenge).hexdigest()
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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.shutdown()
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if 'BYE' in self.untagged_responses:
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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 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:
|
|
self._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 proxyauth(self, user):
|
|
"""Assume authentication as "user".
|
|
|
|
Allows an authorised administrator to proxy into any user's
|
|
mailbox.
|
|
|
|
(typ, [data]) = <instance>.proxyauth(user)
|
|
"""
|
|
|
|
name = 'PROXYAUTH'
|
|
return self._simple_command('PROXYAUTH', user)
|
|
|
|
|
|
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, criterion, ...)
|
|
|
|
'data' is space separated list of matching message numbers.
|
|
"""
|
|
name = 'SEARCH'
|
|
if charset:
|
|
typ, dat = self._simple_command(name, 'CHARSET', charset, *criteria)
|
|
else:
|
|
typ, dat = 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 is not None:
|
|
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 'READ-ONLY' in self.untagged_responses \
|
|
and not readonly:
|
|
if __debug__:
|
|
if self.debug >= 1:
|
|
self._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>.setacl(mailbox, who, what)
|
|
"""
|
|
return self._simple_command('SETACL', mailbox, who, what)
|
|
|
|
|
|
def setquota(self, root, limits):
|
|
"""Set the quota root's resource limits.
|
|
|
|
(typ, [data]) = <instance>.setquota(root, limits)
|
|
"""
|
|
typ, dat = self._simple_command('SETQUOTA', root, limits)
|
|
return self._untagged_response(typ, dat, 'QUOTA')
|
|
|
|
|
|
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 = 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 thread(self, threading_algorithm, charset, *search_criteria):
|
|
"""IMAPrev1 extension THREAD command.
|
|
|
|
(type, [data]) = <instance>.thread(threading_alogrithm, charset, search_criteria, ...)
|
|
"""
|
|
name = 'THREAD'
|
|
typ, dat = self._simple_command(name, threading_algorithm, charset, *search_criteria)
|
|
return self._untagged_response(typ, dat, name)
|
|
|
|
|
|
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 command in Commands:
|
|
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 = 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 name in Commands:
|
|
Commands[name] = (self.state,)
|
|
return 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:
|
|
self._mesg('untagged_responses[%s] %s += ["%s"]' %
|
|
(typ, len(ur.get(typ,'')), dat))
|
|
if typ in ur:
|
|
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 typ in self.untagged_responses:
|
|
del self.untagged_responses[typ]
|
|
|
|
if 'READ-ONLY' in self.untagged_responses \
|
|
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:
|
|
self._mesg('> %s' % data)
|
|
else:
|
|
self._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:
|
|
self._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 tag in self.tagged_commands:
|
|
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:
|
|
self._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'):
|
|
self._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:
|
|
self.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:
|
|
self._mesg('< %s' % line)
|
|
else:
|
|
self._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:
|
|
self._mesg("\tmatched r'%s' => %r" % (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, self._command(name, *args))
|
|
|
|
|
|
def _untagged_response(self, typ, dat, name):
|
|
|
|
if typ == 'NO':
|
|
return typ, dat
|
|
if not name in self.untagged_responses:
|
|
return typ, [None]
|
|
data = self.untagged_responses.pop(name)
|
|
if __debug__:
|
|
if self.debug >= 5:
|
|
self._mesg('untagged_responses[%s] => %s' % (name, data))
|
|
return typ, data
|
|
|
|
|
|
if __debug__:
|
|
|
|
def _mesg(self, 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(self, 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)
|
|
self._mesg('untagged responses dump:%s%s' % (t, t.join(l)))
|
|
|
|
def _log(self, line):
|
|
# Keep log of last `_cmd_log_len' interactions for debugging.
|
|
self._cmd_log[self._cmd_log_idx] = (line, time.time())
|
|
self._cmd_log_idx += 1
|
|
if self._cmd_log_idx >= self._cmd_log_len:
|
|
self._cmd_log_idx = 0
|
|
|
|
def print_log(self):
|
|
self._mesg('last %d IMAP4 interactions:' % len(self._cmd_log))
|
|
i, n = self._cmd_log_idx, self._cmd_log_len
|
|
while n:
|
|
try:
|
|
self._mesg(*self._cmd_log[i])
|
|
except:
|
|
pass
|
|
i += 1
|
|
if i >= self._cmd_log_len:
|
|
i = 0
|
|
n -= 1
|
|
|
|
|
|
|
|
class IMAP4_SSL(IMAP4):
|
|
|
|
"""IMAP4 client class over SSL connection
|
|
|
|
Instantiate with: IMAP4_SSL([host[, port[, keyfile[, certfile]]]])
|
|
|
|
host - host's name (default: localhost);
|
|
port - port number (default: standard IMAP4 SSL port).
|
|
keyfile - PEM formatted file that contains your private key (default: None);
|
|
certfile - PEM formatted certificate chain file (default: None);
|
|
|
|
for more documentation see the docstring of the parent class IMAP4.
|
|
"""
|
|
|
|
|
|
def __init__(self, host = '', port = IMAP4_SSL_PORT, keyfile = None, certfile = None):
|
|
self.keyfile = keyfile
|
|
self.certfile = certfile
|
|
IMAP4.__init__(self, host, port)
|
|
|
|
|
|
def open(self, host = '', port = IMAP4_SSL_PORT):
|
|
"""Setup connection to remote server on "host:port".
|
|
(default: localhost:standard IMAP4 SSL port).
|
|
This connection will be used by the routines:
|
|
read, readline, send, shutdown.
|
|
"""
|
|
self.host = host
|
|
self.port = port
|
|
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
self.sock.connect((host, port))
|
|
self.sslobj = socket.ssl(self.sock, self.keyfile, self.certfile)
|
|
|
|
|
|
def read(self, size):
|
|
"""Read 'size' bytes from remote."""
|
|
# sslobj.read() sometimes returns < size bytes
|
|
chunks = []
|
|
read = 0
|
|
while read < size:
|
|
data = self.sslobj.read(size-read)
|
|
read += len(data)
|
|
chunks.append(data)
|
|
|
|
return ''.join(chunks)
|
|
|
|
|
|
def readline(self):
|
|
"""Read line from remote."""
|
|
# NB: socket.ssl needs a "readline" method, or perhaps a "makefile" method.
|
|
line = []
|
|
while 1:
|
|
char = self.sslobj.read(1)
|
|
line.append(char)
|
|
if char == "\n": return ''.join(line)
|
|
|
|
|
|
def send(self, data):
|
|
"""Send data to remote."""
|
|
# NB: socket.ssl needs a "sendall" method to match socket objects.
|
|
bytes = len(data)
|
|
while bytes > 0:
|
|
sent = self.sslobj.write(data)
|
|
if sent == bytes:
|
|
break # avoid copy
|
|
data = data[sent:]
|
|
bytes = bytes - sent
|
|
|
|
|
|
def shutdown(self):
|
|
"""Close I/O established in "open"."""
|
|
self.sock.close()
|
|
|
|
|
|
def socket(self):
|
|
"""Return socket instance used to connect to IMAP4 server.
|
|
|
|
socket = <instance>.socket()
|
|
"""
|
|
return self.sock
|
|
|
|
|
|
def ssl(self):
|
|
"""Return SSLObject instance used to communicate with the IMAP4 server.
|
|
|
|
ssl = <instance>.socket.ssl()
|
|
"""
|
|
return self.sslobj
|
|
|
|
|
|
|
|
class IMAP4_stream(IMAP4):
|
|
|
|
"""IMAP4 client class over a stream
|
|
|
|
Instantiate with: IMAP4_stream(command)
|
|
|
|
where "command" is a string that can be passed to os.popen2()
|
|
|
|
for more documentation see the docstring of the parent class IMAP4.
|
|
"""
|
|
|
|
|
|
def __init__(self, command):
|
|
self.command = command
|
|
IMAP4.__init__(self)
|
|
|
|
|
|
def open(self, host = None, port = None):
|
|
"""Setup a stream connection.
|
|
This connection will be used by the routines:
|
|
read, readline, send, shutdown.
|
|
"""
|
|
self.host = None # For compatibility with parent class
|
|
self.port = None
|
|
self.sock = None
|
|
self.file = None
|
|
self.writefile, self.readfile = os.popen2(self.command)
|
|
|
|
|
|
def read(self, size):
|
|
"""Read 'size' bytes from remote."""
|
|
return self.readfile.read(size)
|
|
|
|
|
|
def readline(self):
|
|
"""Read line from remote."""
|
|
return self.readfile.readline()
|
|
|
|
|
|
def send(self, data):
|
|
"""Send data to remote."""
|
|
self.writefile.write(data)
|
|
self.writefile.flush()
|
|
|
|
|
|
def shutdown(self):
|
|
"""Close I/O established in "open"."""
|
|
self.readfile.close()
|
|
self.writefile.close()
|
|
|
|
|
|
|
|
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"'
|
|
"""
|
|
|
|
if isinstance(date_time, (int, float)):
|
|
tt = time.localtime(date_time)
|
|
elif isinstance(date_time, (tuple, time.struct_time)):
|
|
tt = date_time
|
|
elif isinstance(date_time, str) and (date_time[0],date_time[-1]) == ('"','"'):
|
|
return date_time # Assume in correct format
|
|
else:
|
|
raise ValueError("date_time not of a known type")
|
|
|
|
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 + " %+03d%02d" % divmod(zone/60, 60) + '"'
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
|
# To test: invoke either as 'python imaplib.py [IMAP4_server_hostname]'
|
|
# or 'python imaplib.py -s "rsh IMAP4_server_hostname exec /etc/rimapd"'
|
|
# to test the IMAP4_stream class
|
|
|
|
import getopt, getpass
|
|
|
|
try:
|
|
optlist, args = getopt.getopt(sys.argv[1:], 'd:s:')
|
|
except getopt.error, val:
|
|
optlist, args = (), ()
|
|
|
|
stream_command = None
|
|
for opt,val in optlist:
|
|
if opt == '-d':
|
|
Debug = int(val)
|
|
elif opt == '-s':
|
|
stream_command = val
|
|
if not args: args = (stream_command,)
|
|
|
|
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':'\n'}
|
|
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')),
|
|
('fetch', ('1', '(FLAGS INTERNALDATE RFC822)')),
|
|
('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):
|
|
M._mesg('%s %s' % (cmd, args))
|
|
typ, dat = getattr(M, cmd)(*args)
|
|
M._mesg('%s => %s %s' % (cmd, typ, dat))
|
|
if typ == 'NO': raise dat[0]
|
|
return dat
|
|
|
|
try:
|
|
if stream_command:
|
|
M = IMAP4_stream(stream_command)
|
|
else:
|
|
M = IMAP4(host)
|
|
if M.state == 'AUTH':
|
|
test_seq1 = test_seq1[1:] # Login not needed
|
|
M._mesg('PROTOCOL_VERSION = %s' % M.PROTOCOL_VERSION)
|
|
M._mesg('CAPABILITIES = %r' % (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
|