245 lines
8.0 KiB
TeX
245 lines
8.0 KiB
TeX
% Based on HTML documentation by Piers Lauder <piers@staff.cs.usyd.edu.au>;
|
|
% converted by Fred L. Drake, Jr. <fdrake@acm.org>.
|
|
|
|
\section{\module{imaplib} ---
|
|
IMAP4 protocol client}
|
|
|
|
\declaremodule{standard}{imaplib}
|
|
\modulesynopsis{IMAP4 protocol client (requires sockets).}
|
|
\moduleauthor{Piers Lauder}{piers@staff.cs.usyd.edu.au}
|
|
\sectionauthor{Piers Lauder}{piers@staff.cs.usyd.edu.au}
|
|
|
|
\indexii{IMAP4}{protocol}
|
|
|
|
This module defines a class, \class{IMAP4}, which encapsulates a
|
|
connection to an IMAP4 server and implements the IMAP4rev1 client
|
|
protocol as defined in \rfc{2060}. It is backward compatible with
|
|
IMAP4 (\rfc{1730}) servers, but note that the \samp{STATUS} command is
|
|
not supported in IMAP4.
|
|
|
|
A single class is provided by the \module{imaplib} module:
|
|
|
|
\begin{classdesc}{IMAP4}{\optional{host\optional{, port}}}
|
|
This class implements the actual IMAP4 protocol. The connection is
|
|
created and protocol version (IMAP4 or IMAP4rev1) is determined when
|
|
the instance is initialized.
|
|
If \var{host} is not specified, \code{''} (the local host) is used.
|
|
If \var{port} is omitted, the standard IMAP4 port (143) is used.
|
|
\end{classdesc}
|
|
|
|
Two exceptions are defined as attributes of the \class{IMAP4} class:
|
|
|
|
\begin{excdesc}{IMAP4.error}
|
|
Exception raised on any errors. The reason for the exception is
|
|
passed to the constructor as a string.
|
|
\end{excdesc}
|
|
|
|
\begin{excdesc}{IMAP4.abort}
|
|
IMAP4 server errors cause this exception to be raised. This is a
|
|
sub-class of \exception{IMAP4.error}. Note that closing the instance
|
|
and instantiating a new one will usually allow recovery from this
|
|
exception.
|
|
\end{excdesc}
|
|
|
|
The following utility functions are defined:
|
|
|
|
\begin{funcdesc}{Internaldate2tuple}{datestr}
|
|
Converts an IMAP4 INTERNALDATE string to Coordinated Universal
|
|
Time. Returns a \refmodule{time} module tuple.
|
|
\end{funcdesc}
|
|
|
|
\begin{funcdesc}{Int2AP}{num}
|
|
Converts an integer into a string representation using characters
|
|
from the set [\code{A} .. \code{P}].
|
|
\end{funcdesc}
|
|
|
|
\begin{funcdesc}{ParseFlags}{flagstr}
|
|
Converts an IMAP4 \samp{FLAGS} response to a tuple of individual
|
|
flags.
|
|
\end{funcdesc}
|
|
|
|
\begin{funcdesc}{Time2Internaldate}{date_time}
|
|
Converts a \refmodule{time} module tuple to an IMAP4
|
|
\samp{INTERNALDATE} representation. Returns a string in the form:
|
|
\code{"DD-Mmm-YYYY HH:MM:SS +HHMM"} (including double-quotes).
|
|
\end{funcdesc}
|
|
|
|
|
|
Note that IMAP4 message numbers change as the mailbox changes, so it
|
|
is highly advisable to use UIDs instead, with the UID command.
|
|
|
|
At the end of the module, there is a test section that contains a more
|
|
extensive example of usage.
|
|
|
|
\begin{seealso}
|
|
\seetext{Documents describing the protocol, and sources and binaries
|
|
for servers implementing it, can all be found at the
|
|
University of Washington's \emph{IMAP Information Center}
|
|
(\url{http://www.cac.washington.edu/imap/}).}
|
|
\end{seealso}
|
|
|
|
|
|
\subsection{IMAP4 Objects \label{imap4-objects}}
|
|
|
|
All IMAP4rev1 commands are represented by methods of the same name,
|
|
either upper-case or lower-case.
|
|
|
|
Each command returns a tuple: \code{(\var{type}, [\var{data},
|
|
...])} where \var{type} is usually \code{'OK'} or \code{'NO'},
|
|
and \var{data} is either the text from the command response, or
|
|
mandated results from the command.
|
|
|
|
An \class{IMAP4} instance has the following methods:
|
|
|
|
|
|
\begin{methoddesc}{append}{mailbox, flags, date_time, message}
|
|
Append message to named mailbox.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{authenticate}{func}
|
|
Authenticate command --- requires response processing. This is
|
|
currently unimplemented, and raises an exception.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{check}{}
|
|
Checkpoint mailbox on server.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{close}{}
|
|
Close currently selected mailbox. Deleted messages are removed from
|
|
writable mailbox. This is the recommended command before
|
|
\samp{LOGOUT}.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{copy}{message_set, new_mailbox}
|
|
Copy \var{message_set} messages onto end of \var{new_mailbox}.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{create}{mailbox}
|
|
Create new mailbox named \var{mailbox}.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{delete}{mailbox}
|
|
Delete old mailbox named \var{mailbox}.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{expunge}{}
|
|
Permanently remove deleted items from selected mailbox. Generates an
|
|
\samp{EXPUNGE} response for each deleted message. Returned data
|
|
contains a list of \samp{EXPUNGE} message numbers in order
|
|
received.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{fetch}{message_set, message_parts}
|
|
Fetch (parts of) messages. Returned data are tuples of message part
|
|
envelope and data.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{list}{\optional{directory\optional{, pattern}}}
|
|
List mailbox names in \var{directory} matching
|
|
\var{pattern}. \var{directory} defaults to the top-level mail
|
|
folder, and \var{pattern} defaults to match anything. Returned data
|
|
contains a list of \samp{LIST} responses.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{login}{user, password}
|
|
Identify the client using a plaintext password.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{logout}{}
|
|
Shutdown connection to server. Returns server \samp{BYE} response.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{lsub}{\optional{directory\optional{, pattern}}}
|
|
List subscribed mailbox names in directory matching pattern.
|
|
\var{directory} defaults to the top level directory and
|
|
\var{pattern} defaults to match any mailbox.
|
|
Returned data are tuples of message part envelope and data.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{recent}{}
|
|
Prompt server for an update. Returned data is \code{None} if no new
|
|
messages, else value of \samp{RECENT} response.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{rename}{oldmailbox, newmailbox}
|
|
Rename mailbox named \var{oldmailbox} to \var{newmailbox}.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{response}{code}
|
|
Return data for response \var{code} if received, or
|
|
\code{None}. Returns the given code, instead of the usual type.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{search}{charset, criteria}
|
|
Search mailbox for matching messages. Returned data contains a space
|
|
separated list of matching message numbers.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{select}{\optional{mailbox\optional{, readonly}}}
|
|
Select a mailbox. Returned data is the count of messages in
|
|
\var{mailbox} (\samp{EXISTS} response). The default \var{mailbox}
|
|
is \code{'INBOX'}. If the \var{readonly} flag is set, modifications
|
|
to the mailbox are not allowed.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{status}{mailbox, names}
|
|
Request named status conditions for \var{mailbox}.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{store}{message_set, command, flag_list}
|
|
Alters flag dispositions for messages in mailbox.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{subscribe}{mailbox}
|
|
Subscribe to new mailbox.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{uid}{command, args}
|
|
Execute command args with messages identified by UID, rather than
|
|
message number. Returns response appropriate to command.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{unsubscribe}{mailbox}
|
|
Unsubscribe from old mailbox.
|
|
\end{methoddesc}
|
|
|
|
\begin{methoddesc}{xatom}{name\optional{, arg1\optional{, arg2}}}
|
|
Allow simple extension commands notified by server in
|
|
\samp{CAPABILITY} response.
|
|
\end{methoddesc}
|
|
|
|
|
|
The following attributes are defined on instances of \class{IMAP4}:
|
|
|
|
|
|
\begin{memberdesc}{PROTOCOL_VERSION}
|
|
The most recent supported protocol in the
|
|
\samp{CAPABILITY} response from the server.
|
|
\end{memberdesc}
|
|
|
|
\begin{memberdesc}{debug}
|
|
Integer value to control debugging output. The initialize value is
|
|
taken from the module variable \code{Debug}. Values greater than
|
|
three trace each command.
|
|
\end{memberdesc}
|
|
|
|
|
|
\subsection{IMAP4 Example \label{imap4-example}}
|
|
|
|
Here is a minimal example (without error checking) that opens a
|
|
mailbox and retrieves and prints all messages:
|
|
|
|
\begin{verbatim}
|
|
import getpass, imaplib, string
|
|
|
|
M = imaplib.IMAP4()
|
|
M.login(getpass.getuser(), getpass.getpass())
|
|
M.select()
|
|
typ, data = M.search(None, 'ALL')
|
|
for num in string.split(data[0]):
|
|
typ, data = M.fetch(num, '(RFC822)')
|
|
print 'Message %s\n%s\n' % (num, data[0][1])
|
|
M.logout()
|
|
\end{verbatim}
|