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emacs/lisp/gnus/imap.el

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;;; imap.el --- imap library
;; Copyright (C) 1998, 1999, 2000
;; Free Software Foundation, Inc.
;; Author: Simon Josefsson <jas@pdc.kth.se>
;; Keywords: mail
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;; imap.el is a elisp library providing an interface for talking to
;; IMAP servers.
;;
;; imap.el is roughly divided in two parts, one that parses IMAP
;; responses from the server and storing data into buffer-local
;; variables, and one for utility functions which send commands to
;; server, waits for an answer, and return information. The latter
;; part is layered on top of the previous.
;;
;; The imap.el API consist of the following functions, other functions
;; in this file should not be called directly and the result of doing
;; so are at best undefined.
;;
;; Global commands:
;;
;; imap-open, imap-opened, imap-authenticate, imap-close,
;; imap-capability, imap-namespace, imap-error-text
;;
;; Mailbox commands:
;;
;; imap-mailbox-get, imap-mailbox-map, imap-current-mailbox,
;; imap-current-mailbox-p, imap-search, imap-mailbox-select,
;; imap-mailbox-examine, imap-mailbox-unselect, imap-mailbox-expunge
;; imap-mailbox-close, imap-mailbox-create, imap-mailbox-delete
;; imap-mailbox-rename, imap-mailbox-lsub, imap-mailbox-list
;; imap-mailbox-subscribe, imap-mailbox-unsubscribe, imap-mailbox-status
;; imap-mailbox-acl-get, imap-mailbox-acl-set, imap-mailbox-acl-delete
;;
;; Message commands:
;;
;; imap-fetch-asynch, imap-fetch,
;; imap-current-message, imap-list-to-message-set,
;; imap-message-get, imap-message-map
;; imap-message-envelope-date, imap-message-envelope-subject,
;; imap-message-envelope-from, imap-message-envelope-sender,
;; imap-message-envelope-reply-to, imap-message-envelope-to,
;; imap-message-envelope-cc, imap-message-envelope-bcc
;; imap-message-envelope-in-reply-to, imap-message-envelope-message-id
;; imap-message-body, imap-message-flag-permanent-p
;; imap-message-flags-set, imap-message-flags-del
;; imap-message-flags-add, imap-message-copyuid
;; imap-message-copy, imap-message-appenduid
;; imap-message-append, imap-envelope-from
;; imap-body-lines
;;
;; It is my hope that theese commands should be pretty self
;; explanatory for someone that know IMAP. All functions have
;; additional documentation on how to invoke them.
;;
;; imap.el support RFC1730/2060 (IMAP4/IMAP4rev1), implemented IMAP
;; extensions are RFC2195 (CRAM-MD5), RFC2086 (ACL), RFC2342
;; (NAMESPACE), RFC2359 (UIDPLUS), the IMAP-part of RFC2595 (STARTTLS,
;; LOGINDISABLED) (with use of external library starttls.el and
;; program starttls) and the GSSAPI / kerberos V4 sections of RFC1731
;; (with use of external program `imtest'). It also take advantage
;; the UNSELECT extension in Cyrus IMAPD.
;;
;; Without the work of John McClary Prevost and Jim Radford this library
;; would not have seen the light of day. Many thanks.
;;
;; This is a transcript of short interactive session for demonstration
;; purposes.
;;
;; (imap-open "my.mail.server")
;; => " *imap* my.mail.server:0"
;;
;; The rest are invoked with current buffer as the buffer returned by
;; `imap-open'. It is possible to do all without this, but it would
;; look ugly here since `buffer' is always the last argument for all
;; imap.el API functions.
;;
;; (imap-authenticate "myusername" "mypassword")
;; => auth
;;
;; (imap-mailbox-lsub "*")
;; => ("INBOX.sentmail" "INBOX.private" "INBOX.draft" "INBOX.spam")
;;
;; (imap-mailbox-list "INBOX.n%")
;; => ("INBOX.namedroppers" "INBOX.nnimap" "INBOX.ntbugtraq")
;;
;; (imap-mailbox-select "INBOX.nnimap")
;; => "INBOX.nnimap"
;;
;; (imap-mailbox-get 'exists)
;; => 166
;;
;; (imap-mailbox-get 'uidvalidity)
;; => "908992622"
;;
;; (imap-search "FLAGGED SINCE 18-DEC-98")
;; => (235 236)
;;
;; (imap-fetch 235 "RFC822.PEEK" 'RFC822)
;; => "X-Sieve: cmu-sieve 1.3^M\nX-Username: <jas@pdc.kth.se>^M\r...."
;;
;; Todo:
;;
;; o Parse UIDs as strings? We need to overcome the 28 bit limit somehow.
;; o Don't use `read' at all (important places already fixed)
;; o Accept list of articles instead of message set string in most
;; imap-message-* functions.
;;
;; Revision history:
;;
;; - 19991218 added starttls/digest-md5 patch,
;; by Daiki Ueno <ueno@ueda.info.waseda.ac.jp>
;; NB! you need SLIM for starttls.el and digest-md5.el
;; - 19991023 commited to pgnus
;;
;;; Code:
(eval-when-compile (require 'cl))
(eval-and-compile
(autoload 'open-ssl-stream "ssl")
(autoload 'base64-decode-string "base64")
(autoload 'base64-encode-string "base64")
(autoload 'starttls-open-stream "starttls")
(autoload 'starttls-negotiate "starttls")
(autoload 'digest-md5-parse-digest-challenge "digest-md5")
(autoload 'digest-md5-digest-response "digest-md5")
(autoload 'digest-md5-digest-uri "digest-md5")
(autoload 'digest-md5-challenge "digest-md5")
(autoload 'rfc2104-hash "rfc2104")
(autoload 'md5 "md5")
(autoload 'utf7-encode "utf7")
(autoload 'utf7-decode "utf7")
(autoload 'format-spec "format-spec")
(autoload 'format-spec-make "format-spec")
;; Avoid use gnus-point-at-eol so we're independent of Gnus. These
;; days we have point-at-eol anyhow.
(if (fboundp 'point-at-eol)
(defalias 'imap-point-at-eol 'point-at-eol)
(defun imap-point-at-eol ()
(save-excursion
(end-of-line)
(point)))))
;; User variables.
(defgroup imap nil
"Low-level IMAP issues."
:version "21.1"
:group 'mail)
(defcustom imap-kerberos4-program '("imtest -m kerberos_v4 -u %l -p %p %s"
"imtest -kp %s %p")
"List of strings containing commands for Kerberos 4 authentication.
%s is replaced with server hostname, %p with port to connect to, and
%l with the value of `imap-default-user'. The program should accept
IMAP commands on stdin and return responses to stdout. Each entry in
the list is tried until a successful connection is made."
:group 'imap
:type '(repeat string))
(defcustom imap-gssapi-program '("imtest -m gssapi -u %l -p %p %s")
"List of strings containing commands for GSSAPI (krb5) authentication.
%s is replaced with server hostname, %p with port to connect to, and
%l with the value of `imap-default-user'. The program should accept
IMAP commands on stdin and return responses to stdout. Each entry in
the list is tried until a successful connection is made."
:group 'imap
:type '(repeat string))
(defcustom imap-ssl-program '("openssl s_client -ssl3 -connect %s:%p"
"openssl s_client -ssl2 -connect %s:%p"
"s_client -ssl3 -connect %s:%p"
"s_client -ssl2 -connect %s:%p")
"A string, or list of strings, containing commands for SSL connections.
Within a string, %s is replaced with the server address and %p with
port number on server. The program should accept IMAP commands on
stdin and return responses to stdout. Each entry in the list is tried
until a successful connection is made."
:group 'imap
:type '(choice string
(repeat string)))
(defcustom imap-shell-program '("ssh %s imapd"
"rsh %s imapd"
"ssh %g ssh %s imapd"
"rsh %g rsh %s imapd")
"A list of strings, containing commands for IMAP connection.
Within a string, %s is replaced with the server address, %p with port
number on server, %g with `imap-shell-host', and %l with
`imap-default-user'. The program should read IMAP commands from stdin
and write IMAP response to stdout. Each entry in the list is tried
until a successful connection is made."
:group 'imap
:type '(repeat string))
(defvar imap-shell-host "gateway"
"Hostname of rlogin proxy.")
(defvar imap-default-user (user-login-name)
"Default username to use.")
(defvar imap-error nil
"Error codes from the last command.")
;; Various variables.
(defvar imap-fetch-data-hook nil
"Hooks called after receiving each FETCH response.")
(defvar imap-streams '(gssapi kerberos4 starttls ssl network shell)
"Priority of streams to consider when opening connection to server.")
(defvar imap-stream-alist
'((gssapi imap-gssapi-stream-p imap-gssapi-open)
(kerberos4 imap-kerberos4-stream-p imap-kerberos4-open)
(ssl imap-ssl-p imap-ssl-open)
(network imap-network-p imap-network-open)
(shell imap-shell-p imap-shell-open)
(starttls imap-starttls-p imap-starttls-open))
"Definition of network streams.
(NAME CHECK OPEN)
NAME names the stream, CHECK is a function returning non-nil if the
server support the stream and OPEN is a function for opening the
stream.")
(defvar imap-authenticators '(gssapi
kerberos4
digest-md5
cram-md5
login
anonymous)
"Priority of authenticators to consider when authenticating to server.")
(defvar imap-authenticator-alist
'((gssapi imap-gssapi-auth-p imap-gssapi-auth)
(kerberos4 imap-kerberos4-auth-p imap-kerberos4-auth)
(cram-md5 imap-cram-md5-p imap-cram-md5-auth)
(login imap-login-p imap-login-auth)
(anonymous imap-anonymous-p imap-anonymous-auth)
(digest-md5 imap-digest-md5-p imap-digest-md5-auth))
"Definition of authenticators.
(NAME CHECK AUTHENTICATE)
NAME names the authenticator. CHECK is a function returning non-nil if
the server support the authenticator and AUTHENTICATE is a function
for doing the actuall authentification.")
(defvar imap-use-utf7 t
"If non-nil, do utf7 encoding/decoding of mailbox names.
Since the UTF7 decoding currently only decodes into ISO-8859-1
characters, you may disable this decoding if you need to access UTF7
encoded mailboxes which doesn't translate into ISO-8859-1.")
;; Internal constants. Change theese and die.
(defconst imap-default-port 143)
(defconst imap-default-ssl-port 993)
(defconst imap-default-stream 'network)
(defconst imap-coding-system-for-read 'binary)
(defconst imap-coding-system-for-write 'binary)
(defconst imap-local-variables '(imap-server
imap-port
imap-client-eol
imap-server-eol
imap-auth
imap-stream
imap-username
imap-password
imap-current-mailbox
imap-current-target-mailbox
imap-message-data
imap-capability
imap-namespace
imap-state
imap-reached-tag
imap-failed-tags
imap-tag
imap-process
imap-calculate-literal-size-first
imap-mailbox-data))
;; Internal variables.
(defvar imap-stream nil)
(defvar imap-auth nil)
(defvar imap-server nil)
(defvar imap-port nil)
(defvar imap-username nil)
(defvar imap-password nil)
(defvar imap-calculate-literal-size-first nil)
(defvar imap-state 'closed
"IMAP state.
Valid states are `closed', `initial', `nonauth', `auth', `selected'
and `examine'.")
(defvar imap-server-eol "\r\n"
"The EOL string sent from the server.")
(defvar imap-client-eol "\r\n"
"The EOL string we send to the server.")
(defvar imap-current-mailbox nil
"Current mailbox name.")
(defvar imap-current-target-mailbox nil
"Current target mailbox for COPY and APPEND commands.")
(defvar imap-mailbox-data nil
"Obarray with mailbox data.")
(defvar imap-mailbox-prime 997
"Length of imap-mailbox-data.")
(defvar imap-current-message nil
"Current message number.")
(defvar imap-message-data nil
"Obarray with message data.")
(defvar imap-message-prime 997
"Length of imap-message-data.")
(defvar imap-capability nil
"Capability for server.")
(defvar imap-namespace nil
"Namespace for current server.")
(defvar imap-reached-tag 0
"Lower limit on command tags that have been parsed.")
(defvar imap-failed-tags nil
"Alist of tags that failed.
Each element is a list with four elements; tag (a integer), response
state (a symbol, `OK', `NO' or `BAD'), response code (a string), and
human readable response text (a string).")
(defvar imap-tag 0
"Command tag number.")
(defvar imap-process nil
"Process.")
(defvar imap-continuation nil
"Non-nil indicates that the server emitted a continuation request.
The actually value is really the text on the continuation line.")
(defvar imap-log nil
"Name of buffer for imap session trace.
For example: (setq imap-log \"*imap-log*\")")
(defvar imap-debug nil ;"*imap-debug*"
"Name of buffer for random debug spew.
For example: (setq imap-debug \"*imap-debug*\")")
;; Utility functions:
(defsubst imap-disable-multibyte ()
"Enable multibyte in the current buffer."
(when (fboundp 'set-buffer-multibyte)
(set-buffer-multibyte nil)))
(defun imap-read-passwd (prompt &rest args)
"Read a password using PROMPT.
If ARGS, PROMPT is used as an argument to `format'."
(let ((prompt (if args
(apply 'format prompt args)
prompt)))
(funcall (if (or (fboundp 'read-passwd)
(and (load "subr" t)
(fboundp 'read-passwd))
(and (load "passwd" t)
(fboundp 'read-passwd)))
'read-passwd
(autoload 'ange-ftp-read-passwd "ange-ftp")
'ange-ftp-read-passwd)
prompt)))
(defsubst imap-utf7-encode (string)
(if imap-use-utf7
(and string
(condition-case ()
(utf7-encode string t)
(error (message
"imap: Could not UTF7 encode `%s', using it unencoded..."
string)
string)))
string))
(defsubst imap-utf7-decode (string)
(if imap-use-utf7
(and string
(condition-case ()
(utf7-decode string t)
(error (message
"imap: Could not UTF7 decode `%s', using it undecoded..."
string)
string)))
string))
(defsubst imap-ok-p (status)
(if (eq status 'OK)
t
(setq imap-error status)
nil))
(defun imap-error-text (&optional buffer)
(with-current-buffer (or buffer (current-buffer))
(nth 3 (car imap-failed-tags))))
;; Server functions; stream stuff:
(defun imap-kerberos4-stream-p (buffer)
(imap-capability 'AUTH=KERBEROS_V4 buffer))
(defun imap-kerberos4-open (name buffer server port)
(let ((cmds imap-kerberos4-program)
cmd done)
(while (and (not done) (setq cmd (pop cmds)))
(message "Opening Kerberos 4 IMAP connection with `%s'..." cmd)
(erase-buffer)
(let* ((port (or port imap-default-port))
(coding-system-for-read imap-coding-system-for-read)
(coding-system-for-write imap-coding-system-for-write)
(process (start-process
name buffer shell-file-name shell-command-switch
(format-spec
cmd
(format-spec-make
?s server
?p (number-to-string port)
?l imap-default-user))))
response)
(when process
(with-current-buffer buffer
(setq imap-client-eol "\n"
imap-calculate-literal-size-first t)
(while (and (memq (process-status process) '(open run))
(goto-char (point-min))
;; cyrus 1.6.x (13? < x <= 22) queries capabilities
(or (while (looking-at "^C:")
(forward-line))
t)
;; cyrus 1.6 imtest print "S: " before server greeting
(or (not (looking-at "S: "))
(forward-char 3)
t)
(not (and (imap-parse-greeting)
;; success in imtest < 1.6:
(or (re-search-forward
"^__\\(.*\\)__\n" nil t)
;; success in imtest 1.6:
(re-search-forward
"^\\(Authenticat.*\\)" nil t))
(setq response (match-string 1)))))
(accept-process-output process 1)
(sit-for 1))
(and imap-log
(with-current-buffer (get-buffer-create imap-log)
(imap-disable-multibyte)
(buffer-disable-undo)
(goto-char (point-max))
(insert-buffer-substring buffer)))
(erase-buffer)
(message "Opening Kerberos 4 IMAP connection with `%s'...%s" cmd
(if response (concat "done, " response) "failed"))
(if (and response (let ((case-fold-search nil))
(not (string-match "failed" response))))
(setq done process)
(if (memq (process-status process) '(open run))
(imap-send-command-wait "LOGOUT"))
(delete-process process)
nil)))))
done))
(defun imap-gssapi-stream-p (buffer)
(imap-capability 'AUTH=GSSAPI buffer))
(defun imap-gssapi-open (name buffer server port)
(let ((cmds imap-gssapi-program)
cmd done)
(while (and (not done) (setq cmd (pop cmds)))
(message "Opening GSSAPI IMAP connection with `%s'..." cmd)
(let* ((port (or port imap-default-port))
(coding-system-for-read imap-coding-system-for-read)
(coding-system-for-write imap-coding-system-for-write)
(process (start-process
name buffer shell-file-name shell-command-switch
(format-spec
cmd
(format-spec-make
?s server
?p (number-to-string port)
?l imap-default-user))))
response)
(when process
(with-current-buffer buffer
(setq imap-client-eol "\n")
(while (and (memq (process-status process) '(open run))
(goto-char (point-min))
;; cyrus 1.6.x (13? < x <= 22) queries capabilities
(or (while (looking-at "^C:")
(forward-line))
t)
;; cyrus 1.6 imtest print "S: " before server greeting
(or (not (looking-at "S: "))
(forward-char 3)
t)
(not (and (imap-parse-greeting)
;; success in imtest 1.6:
(re-search-forward
"^\\(Authenticat.*\\)" nil t)
(setq response (match-string 1)))))
(accept-process-output process 1)
(sit-for 1))
(and imap-log
(with-current-buffer (get-buffer-create imap-log)
(imap-disable-multibyte)
(buffer-disable-undo)
(goto-char (point-max))
(insert-buffer-substring buffer)))
(erase-buffer)
(message "GSSAPI IMAP connection: %s" (or response "failed"))
(if (and response (let ((case-fold-search nil))
(not (string-match "failed" response))))
(setq done process)
(if (memq (process-status process) '(open run))
(imap-send-command-wait "LOGOUT"))
(delete-process process)
nil)))))
done))
(defun imap-ssl-p (buffer)
nil)
(defun imap-ssl-open (name buffer server port)
"Open a SSL connection to server."
(let ((cmds (if (listp imap-ssl-program) imap-ssl-program
(list imap-ssl-program)))
cmd done)
(while (and (not done) (setq cmd (pop cmds)))
(message "imap: Opening SSL connection with `%s'..." cmd)
(let* ((port (or port imap-default-ssl-port))
(coding-system-for-read imap-coding-system-for-read)
(coding-system-for-write imap-coding-system-for-write)
(ssl-program-name shell-file-name)
(ssl-program-arguments
(list shell-command-switch
(format-spec cmd (format-spec-make
?s server
?p (number-to-string port)))))
process)
(when (setq process (ignore-errors (open-ssl-stream
name buffer server port)))
(with-current-buffer buffer
(goto-char (point-min))
(while (and (memq (process-status process) '(open run))
(goto-char (point-max))
(forward-line -1)
(not (imap-parse-greeting)))
(accept-process-output process 1)
(sit-for 1))
(and imap-log
(with-current-buffer (get-buffer-create imap-log)
(imap-disable-multibyte)
(buffer-disable-undo)
(goto-char (point-max))
(insert-buffer-substring buffer)))
(erase-buffer)
(when (memq (process-status process) '(open run))
(setq done process))))))
(if done
(progn
(message "imap: Opening SSL connection with `%s'...done" cmd)
done)
(message "imap: Opening SSL connection with `%s'...failed" cmd)
nil)))
(defun imap-network-p (buffer)
t)
(defun imap-network-open (name buffer server port)
(let* ((port (or port imap-default-port))
(coding-system-for-read imap-coding-system-for-read)
(coding-system-for-write imap-coding-system-for-write)
(process (open-network-stream name buffer server port)))
(when process
(while (and (memq (process-status process) '(open run))
(goto-char (point-min))
(not (imap-parse-greeting)))
(accept-process-output process 1)
(sit-for 1))
(and imap-log
(with-current-buffer (get-buffer-create imap-log)
(imap-disable-multibyte)
(buffer-disable-undo)
(goto-char (point-max))
(insert-buffer-substring buffer)))
(when (memq (process-status process) '(open run))
process))))
(defun imap-shell-p (buffer)
nil)
(defun imap-shell-open (name buffer server port)
(let ((cmds imap-shell-program)
cmd done)
(while (and (not done) (setq cmd (pop cmds)))
(message "imap: Opening IMAP connection with `%s'..." cmd)
(setq imap-client-eol "\n")
(let* ((port (or port imap-default-port))
(coding-system-for-read imap-coding-system-for-read)
(coding-system-for-write imap-coding-system-for-write)
(process (start-process
name buffer shell-file-name shell-command-switch
(format-spec
cmd
(format-spec-make
?s server
?g imap-shell-host
?p (number-to-string port)
?l imap-default-user)))))
(when process
(while (and (memq (process-status process) '(open run))
(goto-char (point-min))
(not (imap-parse-greeting)))
(accept-process-output process 1)
(sit-for 1))
(erase-buffer)
(and imap-log
(with-current-buffer (get-buffer-create imap-log)
(imap-disable-multibyte)
(buffer-disable-undo)
(goto-char (point-max))
(insert-buffer-substring buffer)))
(when (memq (process-status process) '(open run))
(setq done process)))))
(if done
(progn
(message "imap: Opening IMAP connection with `%s'...done" cmd)
done)
(message "imap: Opening IMAP connection with `%s'...failed" cmd)
nil)))
(defun imap-starttls-p (buffer)
(and (imap-capability 'STARTTLS buffer)
(condition-case ()
(progn
(require 'starttls)
(call-process "starttls"))
(error nil))))
(defun imap-starttls-open (name buffer server port)
(let* ((port (or port imap-default-port))
(coding-system-for-read imap-coding-system-for-read)
(coding-system-for-write imap-coding-system-for-write)
(process (starttls-open-stream name buffer server port))
done)
(message "imap: Connecting with STARTTLS...")
(when process
(while (and (memq (process-status process) '(open run))
(goto-char (point-min))
(not (imap-parse-greeting)))
(accept-process-output process 1)
(sit-for 1))
(and imap-log
(with-current-buffer (get-buffer-create imap-log)
(buffer-disable-undo)
(goto-char (point-max))
(insert-buffer-substring buffer)))
(let ((imap-process process))
(unwind-protect
(progn
(set-process-filter imap-process 'imap-arrival-filter)
(when (and (eq imap-stream 'starttls)
(imap-ok-p (imap-send-command-wait "STARTTLS")))
(starttls-negotiate imap-process)))
(set-process-filter imap-process nil)))
(when (memq (process-status process) '(open run))
(setq done process)))
(if done
(progn
(message "imap: Connecting with STARTTLS...done")
done)
(message "imap: Connecting with STARTTLS...failed")
nil)))
;; Server functions; authenticator stuff:
(defun imap-interactive-login (buffer loginfunc)
"Login to server in BUFFER.
LOGINFUNC is passed a username and a password, it should return t if
it where sucessful authenticating itself to the server, nil otherwise.
Returns t if login was successful, nil otherwise."
(with-current-buffer buffer
(make-variable-buffer-local 'imap-username)
(make-variable-buffer-local 'imap-password)
(let (user passwd ret)
;; (condition-case ()
(while (or (not user) (not passwd))
(setq user (or imap-username
(read-from-minibuffer
(concat "IMAP username for " imap-server ": ")
(or user imap-default-user))))
(setq passwd (or imap-password
(imap-read-passwd
(concat "IMAP password for " user "@"
imap-server ": "))))
(when (and user passwd)
(if (funcall loginfunc user passwd)
(progn
(setq ret t
imap-username user)
(if (and (not imap-password)
(y-or-n-p "Store password for this session? "))
(setq imap-password passwd)))
(message "Login failed...")
(setq passwd nil)
(sit-for 1))))
;; (quit (with-current-buffer buffer
;; (setq user nil
;; passwd nil)))
;; (error (with-current-buffer buffer
;; (setq user nil
;; passwd nil))))
ret)))
(defun imap-gssapi-auth-p (buffer)
(imap-capability 'AUTH=GSSAPI buffer))
(defun imap-gssapi-auth (buffer)
(message "imap: Authenticating using GSSAPI...%s"
(if (eq imap-stream 'gssapi) "done" "failed"))
(eq imap-stream 'gssapi))
(defun imap-kerberos4-auth-p (buffer)
(imap-capability 'AUTH=KERBEROS_V4 buffer))
(defun imap-kerberos4-auth (buffer)
(message "imap: Authenticating using Kerberos 4...%s"
(if (eq imap-stream 'kerberos4) "done" "failed"))
(eq imap-stream 'kerberos4))
(defun imap-cram-md5-p (buffer)
(imap-capability 'AUTH=CRAM-MD5 buffer))
(defun imap-cram-md5-auth (buffer)
"Login to server using the AUTH CRAM-MD5 method."
(message "imap: Authenticating using CRAM-MD5...")
(let ((done (imap-interactive-login
buffer
(lambda (user passwd)
(imap-ok-p
(imap-send-command-wait
(list
"AUTHENTICATE CRAM-MD5"
(lambda (challenge)
(let* ((decoded (base64-decode-string challenge))
(hash (rfc2104-hash 'md5 64 16 passwd decoded))
(response (concat user " " hash))
(encoded (base64-encode-string response)))
encoded)))))))))
(if done
(message "imap: Authenticating using CRAM-MD5...done")
(message "imap: Authenticating using CRAM-MD5...failed"))))
(defun imap-login-p (buffer)
(and (not (imap-capability 'LOGINDISABLED buffer))
(not (imap-capability 'X-LOGIN-CMD-DISABLED buffer))))
(defun imap-login-auth (buffer)
"Login to server using the LOGIN command."
(message "imap: Plaintext authentication...")
(imap-interactive-login buffer
(lambda (user passwd)
(imap-ok-p (imap-send-command-wait
(concat "LOGIN \"" user "\" \""
passwd "\""))))))
(defun imap-anonymous-p (buffer)
t)
(defun imap-anonymous-auth (buffer)
(message "imap: Loging in anonymously...")
(with-current-buffer buffer
(imap-ok-p (imap-send-command-wait
(concat "LOGIN anonymous \"" (concat (user-login-name) "@"
(system-name)) "\"")))))
(defun imap-digest-md5-p (buffer)
(and (imap-capability 'AUTH=DIGEST-MD5 buffer)
(condition-case ()
(require 'digest-md5)
(error nil))))
(defun imap-digest-md5-auth (buffer)
"Login to server using the AUTH DIGEST-MD5 method."
(message "imap: Authenticating using DIGEST-MD5...")
(imap-interactive-login
buffer
(lambda (user passwd)
(let ((tag
(imap-send-command
(list
"AUTHENTICATE DIGEST-MD5"
(lambda (challenge)
(digest-md5-parse-digest-challenge
(base64-decode-string challenge))
(let* ((digest-uri
(digest-md5-digest-uri
"imap" (digest-md5-challenge 'realm)))
(response
(digest-md5-digest-response
user passwd digest-uri)))
(base64-encode-string response 'no-line-break))))
)))
(if (not (eq (imap-wait-for-tag tag) 'INCOMPLETE))
nil
(setq imap-continuation nil)
(imap-send-command-1 "")
(imap-ok-p (imap-wait-for-tag tag)))))))
;; Server functions:
(defun imap-open-1 (buffer)
(with-current-buffer buffer
(erase-buffer)
(setq imap-current-mailbox nil
imap-current-message nil
imap-state 'initial
imap-process (condition-case ()
(funcall (nth 2 (assq imap-stream
imap-stream-alist))
"imap" buffer imap-server imap-port)
((error quit) nil)))
(when imap-process
(set-process-filter imap-process 'imap-arrival-filter)
(set-process-sentinel imap-process 'imap-sentinel)
(while (and (eq imap-state 'initial)
(memq (process-status imap-process) '(open run)))
(message "Waiting for response from %s..." imap-server)
(accept-process-output imap-process 1))
(message "Waiting for response from %s...done" imap-server)
(and (memq (process-status imap-process) '(open run))
imap-process))))
(defun imap-open (server &optional port stream auth buffer)
"Open a IMAP connection to host SERVER at PORT returning a buffer.
If PORT is unspecified, a default value is used (143 except
for SSL which use 993).
STREAM indicates the stream to use, see `imap-streams' for available
streams. If nil, it choices the best stream the server is capable of.
AUTH indicates authenticator to use, see `imap-authenticators' for
available authenticators. If nil, it choices the best stream the
server is capable of.
BUFFER can be a buffer or a name of a buffer, which is created if
necessery. If nil, the buffer name is generated."
(setq buffer (or buffer (format " *imap* %s:%d" server (or port 0))))
(with-current-buffer (get-buffer-create buffer)
(if (imap-opened buffer)
(imap-close buffer))
(mapcar 'make-variable-buffer-local imap-local-variables)
(imap-disable-multibyte)
(buffer-disable-undo)
(setq imap-server (or server imap-server))
(setq imap-port (or port imap-port))
(setq imap-auth (or auth imap-auth))
(setq imap-stream (or stream imap-stream))
(message "imap: Connecting to %s..." imap-server)
(if (let ((imap-stream (or imap-stream imap-default-stream)))
(imap-open-1 buffer))
;; Choose stream.
(let (stream-changed)
(message "imap: Connecting to %s...done" imap-server)
(when (null imap-stream)
(let ((streams imap-streams))
(while (setq stream (pop streams))
(if (funcall (nth 1 (assq stream imap-stream-alist)) buffer)
(setq stream-changed (not (eq (or imap-stream
imap-default-stream)
stream))
imap-stream stream
streams nil)))
(unless imap-stream
(error "Couldn't figure out a stream for server"))))
(when stream-changed
(message "imap: Reconnecting with stream `%s'..." imap-stream)
(imap-close buffer)
(if (imap-open-1 buffer)
(message "imap: Reconnecting with stream `%s'...done"
imap-stream)
(message "imap: Reconnecting with stream `%s'...failed"
imap-stream))
(setq imap-capability nil))
(if (imap-opened buffer)
;; Choose authenticator
(when (and (null imap-auth) (not (eq imap-state 'auth)))
(let ((auths imap-authenticators))
(while (setq auth (pop auths))
(if (funcall (nth 1 (assq auth imap-authenticator-alist))
buffer)
(setq imap-auth auth
auths nil)))
(unless imap-auth
(error "Couldn't figure out authenticator for server"))))))
(message "imap: Connecting to %s...failed" imap-server))
(when (imap-opened buffer)
(setq imap-mailbox-data (make-vector imap-mailbox-prime 0))
buffer)))
(defun imap-opened (&optional buffer)
"Return non-nil if connection to imap server in BUFFER is open.
If BUFFER is nil then the current buffer is used."
(and (setq buffer (get-buffer (or buffer (current-buffer))))
(buffer-live-p buffer)
(with-current-buffer buffer
(and imap-process
(memq (process-status imap-process) '(open run))))))
(defun imap-authenticate (&optional user passwd buffer)
"Authenticate to server in BUFFER, using current buffer if nil.
It uses the authenticator specified when opening the server. If the
authenticator requires username/passwords, they are queried from the
user and optionally stored in the buffer. If USER and/or PASSWD is
specified, the user will not be questioned and the username and/or
password is remembered in the buffer."
(with-current-buffer (or buffer (current-buffer))
(if (not (eq imap-state 'nonauth))
(or (eq imap-state 'auth)
(eq imap-state 'select)
(eq imap-state 'examine))
(make-variable-buffer-local 'imap-username)
(make-variable-buffer-local 'imap-password)
(if user (setq imap-username user))
(if passwd (setq imap-password passwd))
(if (funcall (nth 2 (assq imap-auth imap-authenticator-alist)) buffer)
(setq imap-state 'auth)))))
(defun imap-close (&optional buffer)
"Close connection to server in BUFFER.
If BUFFER is nil, the current buffer is used."
(with-current-buffer (or buffer (current-buffer))
(and (imap-opened)
(not (imap-ok-p (imap-send-command-wait "LOGOUT")))
(message "Server %s didn't let me log out" imap-server))
(when (and imap-process
(memq (process-status imap-process) '(open run)))
(delete-process imap-process))
(setq imap-current-mailbox nil
imap-current-message nil
imap-process nil)
(erase-buffer)
t))
(defun imap-capability (&optional identifier buffer)
"Return a list of identifiers which server in BUFFER support.
If IDENTIFIER, return non-nil if it's among the servers capabilities.
If BUFFER is nil, the current buffer is assumed."
(with-current-buffer (or buffer (current-buffer))
(unless imap-capability
(unless (imap-ok-p (imap-send-command-wait "CAPABILITY"))
(setq imap-capability '(IMAP2))))
(if identifier
(memq (intern (upcase (symbol-name identifier))) imap-capability)
imap-capability)))
(defun imap-namespace (&optional buffer)
"Return a namespace hierarchy at server in BUFFER.
If BUFFER is nil, the current buffer is assumed."
(with-current-buffer (or buffer (current-buffer))
(unless imap-namespace
(when (imap-capability 'NAMESPACE)
(imap-send-command-wait "NAMESPACE")))
imap-namespace))
(defun imap-send-command-wait (command &optional buffer)
(imap-wait-for-tag (imap-send-command command buffer) buffer))
;; Mailbox functions:
(defun imap-mailbox-put (propname value &optional mailbox buffer)
(with-current-buffer (or buffer (current-buffer))
(if imap-mailbox-data
(put (intern (or mailbox imap-current-mailbox) imap-mailbox-data)
propname value)
(error "Imap-mailbox-data is nil, prop %s value %s mailbox %s buffer %s"
propname value mailbox (current-buffer)))
t))
(defsubst imap-mailbox-get-1 (propname &optional mailbox)
(get (intern-soft (or mailbox imap-current-mailbox) imap-mailbox-data)
propname))
(defun imap-mailbox-get (propname &optional mailbox buffer)
(let ((mailbox (imap-utf7-encode mailbox)))
(with-current-buffer (or buffer (current-buffer))
(imap-mailbox-get-1 propname (or mailbox imap-current-mailbox)))))
(defun imap-mailbox-map-1 (func &optional mailbox-decoder buffer)
(with-current-buffer (or buffer (current-buffer))
(let (result)
(mapatoms
(lambda (s)
(push (funcall func (if mailbox-decoder
(funcall mailbox-decoder (symbol-name s))
(symbol-name s))) result))
imap-mailbox-data)
result)))
(defun imap-mailbox-map (func &optional buffer)
"Map a function across each mailbox in `imap-mailbox-data', returning a list.
Function should take a mailbox name (a string) as
the only argument."
(imap-mailbox-map-1 func 'imap-utf7-decode buffer))
(defun imap-current-mailbox (&optional buffer)
(with-current-buffer (or buffer (current-buffer))
(imap-utf7-decode imap-current-mailbox)))
(defun imap-current-mailbox-p-1 (mailbox &optional examine)
(and (string= mailbox imap-current-mailbox)
(or (and examine
(eq imap-state 'examine))
(and (not examine)
(eq imap-state 'selected)))))
(defun imap-current-mailbox-p (mailbox &optional examine buffer)
(with-current-buffer (or buffer (current-buffer))
(imap-current-mailbox-p-1 (imap-utf7-encode mailbox) examine)))
(defun imap-mailbox-select-1 (mailbox &optional examine)
"Select MAILBOX on server in BUFFER.
If EXAMINE is non-nil, do a read-only select."
(if (imap-current-mailbox-p-1 mailbox examine)
imap-current-mailbox
(setq imap-current-mailbox mailbox)
(if (imap-ok-p (imap-send-command-wait
(concat (if examine "EXAMINE" "SELECT") " \""
mailbox "\"")))
(progn
(setq imap-message-data (make-vector imap-message-prime 0)
imap-state (if examine 'examine 'selected))
imap-current-mailbox)
;; Failed SELECT/EXAMINE unselects current mailbox
(setq imap-current-mailbox nil))))
(defun imap-mailbox-select (mailbox &optional examine buffer)
(with-current-buffer (or buffer (current-buffer))
(imap-utf7-decode
(imap-mailbox-select-1 (imap-utf7-encode mailbox) examine))))
(defun imap-mailbox-examine-1 (mailbox &optional buffer)
(with-current-buffer (or buffer (current-buffer))
(imap-mailbox-select-1 mailbox 'examine)))
(defun imap-mailbox-examine (mailbox &optional buffer)
"Examine MAILBOX on server in BUFFER."
(imap-mailbox-select mailbox 'examine buffer))
(defun imap-mailbox-unselect (&optional buffer)
"Close current folder in BUFFER, without expunging articles."
(with-current-buffer (or buffer (current-buffer))
(when (or (eq imap-state 'auth)
(and (imap-capability 'UNSELECT)
(imap-ok-p (imap-send-command-wait "UNSELECT")))
(and (imap-ok-p
(imap-send-command-wait (concat "EXAMINE \""
imap-current-mailbox
"\"")))
(imap-ok-p (imap-send-command-wait "CLOSE"))))
(setq imap-current-mailbox nil
imap-message-data nil
imap-state 'auth)
t)))
(defun imap-mailbox-expunge (&optional buffer)
"Expunge articles in current folder in BUFFER.
If BUFFER is nil the current buffer is assumed."
(with-current-buffer (or buffer (current-buffer))
(when (and imap-current-mailbox (not (eq imap-state 'examine)))
(imap-ok-p (imap-send-command-wait "EXPUNGE")))))
(defun imap-mailbox-close (&optional buffer)
"Expunge articles and close current folder in BUFFER.
If BUFFER is nil the current buffer is assumed."
(with-current-buffer (or buffer (current-buffer))
(when (and imap-current-mailbox
(imap-ok-p (imap-send-command-wait "CLOSE")))
(setq imap-current-mailbox nil
imap-message-data nil
imap-state 'auth)
t)))
(defun imap-mailbox-create-1 (mailbox)
(imap-ok-p (imap-send-command-wait (list "CREATE \"" mailbox "\""))))
(defun imap-mailbox-create (mailbox &optional buffer)
"Create MAILBOX on server in BUFFER.
If BUFFER is nil the current buffer is assumed."
(with-current-buffer (or buffer (current-buffer))
(imap-mailbox-create-1 (imap-utf7-encode mailbox))))
(defun imap-mailbox-delete (mailbox &optional buffer)
"Delete MAILBOX on server in BUFFER.
If BUFFER is nil the current buffer is assumed."
(let ((mailbox (imap-utf7-encode mailbox)))
(with-current-buffer (or buffer (current-buffer))
(imap-ok-p
(imap-send-command-wait (list "DELETE \"" mailbox "\""))))))
(defun imap-mailbox-rename (oldname newname &optional buffer)
"Rename mailbox OLDNAME to NEWNAME on server in BUFFER.
If BUFFER is nil the current buffer is assumed."
(let ((oldname (imap-utf7-encode oldname))
(newname (imap-utf7-encode newname)))
(with-current-buffer (or buffer (current-buffer))
(imap-ok-p
(imap-send-command-wait (list "RENAME \"" oldname "\" "
"\"" newname "\""))))))
(defun imap-mailbox-lsub (&optional root reference add-delimiter buffer)
"Return a list of subscribed mailboxes on server in BUFFER.
If ROOT is non-nil, only list matching mailboxes. If ADD-DELIMITER is
non-nil, a hierarchy delimiter is added to root. REFERENCE is a
implementation-specific string that has to be passed to lsub command."
(with-current-buffer (or buffer (current-buffer))
;; Make sure we know the hierarchy separator for root's hierarchy
(when (and add-delimiter (null (imap-mailbox-get-1 'delimiter root)))
(imap-send-command-wait (concat "LIST \"" reference "\" \""
(imap-utf7-encode root) "\"")))
;; clear list data (NB not delimiter and other stuff)
(imap-mailbox-map-1 (lambda (mailbox)
(imap-mailbox-put 'lsub nil mailbox)))
(when (imap-ok-p
(imap-send-command-wait
(concat "LSUB \"" reference "\" \"" (imap-utf7-encode root)
(and add-delimiter (imap-mailbox-get-1 'delimiter root))
"%\"")))
(let (out)
(imap-mailbox-map-1 (lambda (mailbox)
(when (imap-mailbox-get-1 'lsub mailbox)
(push (imap-utf7-decode mailbox) out))))
(nreverse out)))))
(defun imap-mailbox-list (root &optional reference add-delimiter buffer)
"Return a list of mailboxes matching ROOT on server in BUFFER.
If ADD-DELIMITER is non-nil, a hierarchy delimiter is added to
root. REFERENCE is a implementation-specific string that has to be
passed to list command."
(with-current-buffer (or buffer (current-buffer))
;; Make sure we know the hierarchy separator for root's hierarchy
(when (and add-delimiter (null (imap-mailbox-get-1 'delimiter root)))
(imap-send-command-wait (concat "LIST \"" reference "\" \""
(imap-utf7-encode root) "\"")))
;; clear list data (NB not delimiter and other stuff)
(imap-mailbox-map-1 (lambda (mailbox)
(imap-mailbox-put 'list nil mailbox)))
(when (imap-ok-p
(imap-send-command-wait
(concat "LIST \"" reference "\" \"" (imap-utf7-encode root)
(and add-delimiter (imap-mailbox-get-1 'delimiter root))
"%\"")))
(let (out)
(imap-mailbox-map-1 (lambda (mailbox)
(when (imap-mailbox-get-1 'list mailbox)
(push (imap-utf7-decode mailbox) out))))
(nreverse out)))))
(defun imap-mailbox-subscribe (mailbox &optional buffer)
"Send the SUBSCRIBE command on the mailbox to server in BUFFER.
Returns non-nil if successful."
(with-current-buffer (or buffer (current-buffer))
(imap-ok-p (imap-send-command-wait (concat "SUBSCRIBE \""
(imap-utf7-encode mailbox)
"\"")))))
(defun imap-mailbox-unsubscribe (mailbox &optional buffer)
"Send the SUBSCRIBE command on the mailbox to server in BUFFER.
Returns non-nil if successful."
(with-current-buffer (or buffer (current-buffer))
(imap-ok-p (imap-send-command-wait (concat "UNSUBSCRIBE "
(imap-utf7-encode mailbox)
"\"")))))
(defun imap-mailbox-status (mailbox items &optional buffer)
"Get status items ITEM in MAILBOX from server in BUFFER.
ITEMS can be a symbol or a list of symbols, valid symbols are one of
the STATUS data items -- ie 'messages, 'recent, 'uidnext, 'uidvalidity
or 'unseen. If ITEMS is a list of symbols, a list of values is
returned, if ITEMS is a symbol only it's value is returned."
(with-current-buffer (or buffer (current-buffer))
(when (imap-ok-p
(imap-send-command-wait (list "STATUS \""
(imap-utf7-encode mailbox)
"\" "
(format "%s"
(if (listp items)
items
(list items))))))
(if (listp items)
(mapcar (lambda (item)
(imap-mailbox-get item mailbox))
items)
(imap-mailbox-get items mailbox)))))
(defun imap-mailbox-acl-get (&optional mailbox buffer)
"Get ACL on mailbox from server in BUFFER."
(let ((mailbox (imap-utf7-encode mailbox)))
(with-current-buffer (or buffer (current-buffer))
(when (imap-ok-p
(imap-send-command-wait (list "GETACL \""
(or mailbox imap-current-mailbox)
"\"")))
(imap-mailbox-get-1 'acl (or mailbox imap-current-mailbox))))))
(defun imap-mailbox-acl-set (identifier rights &optional mailbox buffer)
"Change/set ACL for IDENTIFIER to RIGHTS in MAILBOX from server in BUFFER."
(let ((mailbox (imap-utf7-encode mailbox)))
(with-current-buffer (or buffer (current-buffer))
(imap-ok-p
(imap-send-command-wait (list "SETACL \""
(or mailbox imap-current-mailbox)
"\" "
identifier
" "
rights))))))
(defun imap-mailbox-acl-delete (identifier &optional mailbox buffer)
"Removes any <identifier,rights> pair for IDENTIFIER in MAILBOX from server in BUFFER."
(let ((mailbox (imap-utf7-encode mailbox)))
(with-current-buffer (or buffer (current-buffer))
(imap-ok-p
(imap-send-command-wait (list "DELETEACL \""
(or mailbox imap-current-mailbox)
"\" "
identifier))))))
;; Message functions:
(defun imap-current-message (&optional buffer)
(with-current-buffer (or buffer (current-buffer))
imap-current-message))
(defun imap-list-to-message-set (list)
(mapconcat (lambda (item)
(number-to-string item))
(if (listp list)
list
(list list))
","))
(defun imap-range-to-message-set (range)
(mapconcat
(lambda (item)
(if (consp item)
(format "%d:%d"
(car item) (cdr item))
(format "%d" item)))
(if (and (listp range) (not (listp (cdr range))))
(list range) ;; make (1 . 2) into ((1 . 2))
range)
","))
(defun imap-fetch-asynch (uids props &optional nouidfetch buffer)
(with-current-buffer (or buffer (current-buffer))
(imap-send-command (format "%sFETCH %s %s" (if nouidfetch "" "UID ")
(if (listp uids)
(imap-list-to-message-set uids)
uids)
props))))
(defun imap-fetch (uids props &optional receive nouidfetch buffer)
"Fetch properties PROPS from message set UIDS from server in BUFFER.
UIDS can be a string, number or a list of numbers. If RECEIVE
is non-nil return theese properties."
(with-current-buffer (or buffer (current-buffer))
(when (imap-ok-p (imap-send-command-wait
(format "%sFETCH %s %s" (if nouidfetch "" "UID ")
(if (listp uids)
(imap-list-to-message-set uids)
uids)
props)))
(if (or (null receive) (stringp uids))
t
(if (listp uids)
(mapcar (lambda (uid)
(if (listp receive)
(mapcar (lambda (prop)
(imap-message-get uid prop))
receive)
(imap-message-get uid receive)))
uids)
(imap-message-get uids receive))))))
(defun imap-message-put (uid propname value &optional buffer)
(with-current-buffer (or buffer (current-buffer))
(if imap-message-data
(put (intern (number-to-string uid) imap-message-data)
propname value)
(error "Imap-message-data is nil, uid %s prop %s value %s buffer %s"
uid propname value (current-buffer)))
t))
(defun imap-message-get (uid propname &optional buffer)
(with-current-buffer (or buffer (current-buffer))
(get (intern-soft (number-to-string uid) imap-message-data)
propname)))
(defun imap-message-map (func propname &optional buffer)
"Map a function across each mailbox in `imap-message-data', returning a list."
(with-current-buffer (or buffer (current-buffer))
(let (result)
(mapatoms
(lambda (s)
(push (funcall func (get s 'UID) (get s propname)) result))
imap-message-data)
result)))
(defmacro imap-message-envelope-date (uid &optional buffer)
`(with-current-buffer (or ,buffer (current-buffer))
(elt (imap-message-get ,uid 'ENVELOPE) 0)))
(defmacro imap-message-envelope-subject (uid &optional buffer)
`(with-current-buffer (or ,buffer (current-buffer))
(elt (imap-message-get ,uid 'ENVELOPE) 1)))
(defmacro imap-message-envelope-from (uid &optional buffer)
`(with-current-buffer (or ,buffer (current-buffer))
(elt (imap-message-get ,uid 'ENVELOPE) 2)))
(defmacro imap-message-envelope-sender (uid &optional buffer)
`(with-current-buffer (or ,buffer (current-buffer))
(elt (imap-message-get ,uid 'ENVELOPE) 3)))
(defmacro imap-message-envelope-reply-to (uid &optional buffer)
`(with-current-buffer (or ,buffer (current-buffer))
(elt (imap-message-get ,uid 'ENVELOPE) 4)))
(defmacro imap-message-envelope-to (uid &optional buffer)
`(with-current-buffer (or ,buffer (current-buffer))
(elt (imap-message-get ,uid 'ENVELOPE) 5)))
(defmacro imap-message-envelope-cc (uid &optional buffer)
`(with-current-buffer (or ,buffer (current-buffer))
(elt (imap-message-get ,uid 'ENVELOPE) 6)))
(defmacro imap-message-envelope-bcc (uid &optional buffer)
`(with-current-buffer (or ,buffer (current-buffer))
(elt (imap-message-get ,uid 'ENVELOPE) 7)))
(defmacro imap-message-envelope-in-reply-to (uid &optional buffer)
`(with-current-buffer (or ,buffer (current-buffer))
(elt (imap-message-get ,uid 'ENVELOPE) 8)))
(defmacro imap-message-envelope-message-id (uid &optional buffer)
`(with-current-buffer (or ,buffer (current-buffer))
(elt (imap-message-get ,uid 'ENVELOPE) 9)))
(defmacro imap-message-body (uid &optional buffer)
`(with-current-buffer (or ,buffer (current-buffer))
(imap-message-get ,uid 'BODY)))
(defun imap-search (predicate &optional buffer)
(with-current-buffer (or buffer (current-buffer))
(imap-mailbox-put 'search 'dummy)
(when (imap-ok-p (imap-send-command-wait (concat "UID SEARCH " predicate)))
(if (eq (imap-mailbox-get-1 'search imap-current-mailbox) 'dummy)
(error "Missing SEARCH response to a SEARCH command")
(imap-mailbox-get-1 'search imap-current-mailbox)))))
(defun imap-message-flag-permanent-p (flag &optional mailbox buffer)
"Return t iff FLAG can be permanently (between IMAP sessions) saved on articles, in MAILBOX on server in BUFFER."
(with-current-buffer (or buffer (current-buffer))
(or (member "\\*" (imap-mailbox-get 'permanentflags mailbox))
(member flag (imap-mailbox-get 'permanentflags mailbox)))))
(defun imap-message-flags-set (articles flags &optional silent buffer)
(when (and articles flags)
(with-current-buffer (or buffer (current-buffer))
(imap-ok-p (imap-send-command-wait
(concat "UID STORE " articles
" FLAGS" (if silent ".SILENT") " (" flags ")"))))))
(defun imap-message-flags-del (articles flags &optional silent buffer)
(when (and articles flags)
(with-current-buffer (or buffer (current-buffer))
(imap-ok-p (imap-send-command-wait
(concat "UID STORE " articles
" -FLAGS" (if silent ".SILENT") " (" flags ")"))))))
(defun imap-message-flags-add (articles flags &optional silent buffer)
(when (and articles flags)
(with-current-buffer (or buffer (current-buffer))
(imap-ok-p (imap-send-command-wait
(concat "UID STORE " articles
" +FLAGS" (if silent ".SILENT") " (" flags ")"))))))
(defun imap-message-copyuid-1 (mailbox)
(if (imap-capability 'UIDPLUS)
(list (nth 0 (imap-mailbox-get-1 'copyuid mailbox))
(string-to-number (nth 2 (imap-mailbox-get-1 'copyuid mailbox))))
(let ((old-mailbox imap-current-mailbox)
(state imap-state)
(imap-message-data (make-vector 2 0)))
(when (imap-mailbox-examine-1 mailbox)
(prog1
(and (imap-fetch "*" "UID")
(list (imap-mailbox-get-1 'uidvalidity mailbox)
(apply 'max (imap-message-map
(lambda (uid prop) uid) 'UID))))
(if old-mailbox
(imap-mailbox-select old-mailbox (eq state 'examine))
(imap-mailbox-unselect)))))))
(defun imap-message-copyuid (mailbox &optional buffer)
(with-current-buffer (or buffer (current-buffer))
(imap-message-copyuid-1 (imap-utf7-decode mailbox))))
(defun imap-message-copy (articles mailbox
&optional dont-create no-copyuid buffer)
"Copy ARTICLES (a string message set) to MAILBOX on server in
BUFFER, creating mailbox if it doesn't exist. If dont-create is
non-nil, it will not create a mailbox. On success, return a list with
the UIDVALIDITY of the mailbox the article(s) was copied to as the
first element, rest of list contain the saved articles' UIDs."
(when articles
(with-current-buffer (or buffer (current-buffer))
(let ((mailbox (imap-utf7-encode mailbox)))
(if (let ((cmd (concat "UID COPY " articles " \"" mailbox "\""))
(imap-current-target-mailbox mailbox))
(if (imap-ok-p (imap-send-command-wait cmd))
t
(when (and (not dont-create)
(imap-mailbox-get-1 'trycreate mailbox))
(imap-mailbox-create-1 mailbox)
(imap-ok-p (imap-send-command-wait cmd)))))
(or no-copyuid
(imap-message-copyuid-1 mailbox)))))))
(defun imap-message-appenduid-1 (mailbox)
(if (imap-capability 'UIDPLUS)
(imap-mailbox-get-1 'appenduid mailbox)
(let ((old-mailbox imap-current-mailbox)
(state imap-state)
(imap-message-data (make-vector 2 0)))
(when (imap-mailbox-examine-1 mailbox)
(prog1
(and (imap-fetch "*" "UID")
(list (imap-mailbox-get-1 'uidvalidity mailbox)
(apply 'max (imap-message-map
(lambda (uid prop) uid) 'UID))))
(if old-mailbox
(imap-mailbox-select old-mailbox (eq state 'examine))
(imap-mailbox-unselect)))))))
(defun imap-message-appenduid (mailbox &optional buffer)
(with-current-buffer (or buffer (current-buffer))
(imap-message-appenduid-1 (imap-utf7-encode mailbox))))
(defun imap-message-append (mailbox article &optional flags date-time buffer)
"Append ARTICLE (a buffer) to MAILBOX on server in BUFFER.
FLAGS and DATE-TIME is currently not used. Return a cons holding
uidvalidity of MAILBOX and UID the newly created article got, or nil
on failure."
(let ((mailbox (imap-utf7-encode mailbox)))
(with-current-buffer (or buffer (current-buffer))
(and (let ((imap-current-target-mailbox mailbox))
(imap-ok-p
(imap-send-command-wait
(list "APPEND \"" mailbox "\" " article))))
(imap-message-appenduid-1 mailbox)))))
(defun imap-body-lines (body)
"Return number of lines in article by looking at the mime bodystructure BODY."
(if (listp body)
(if (stringp (car body))
(cond ((and (string= (upcase (car body)) "TEXT")
(numberp (nth 7 body)))
(nth 7 body))
((and (string= (upcase (car body)) "MESSAGE")
(numberp (nth 9 body)))
(nth 9 body))
(t 0))
(apply '+ (mapcar 'imap-body-lines body)))
0))
(defun imap-envelope-from (from)
"Return a from string line."
(and from
(concat (aref from 0)
(if (aref from 0) " <")
(aref from 2)
"@"
(aref from 3)
(if (aref from 0) ">"))))
;; Internal functions.
(defun imap-send-command-1 (cmdstr)
(setq cmdstr (concat cmdstr imap-client-eol))
(and imap-log
(with-current-buffer (get-buffer-create imap-log)
(imap-disable-multibyte)
(buffer-disable-undo)
(goto-char (point-max))
(insert cmdstr)))
(process-send-string imap-process cmdstr))
(defun imap-send-command (command &optional buffer)
(with-current-buffer (or buffer (current-buffer))
(if (not (listp command)) (setq command (list command)))
(let ((tag (setq imap-tag (1+ imap-tag)))
cmd cmdstr)
(setq cmdstr (concat (number-to-string imap-tag) " "))
(while (setq cmd (pop command))
(cond ((stringp cmd)
(setq cmdstr (concat cmdstr cmd)))
((bufferp cmd)
(let ((eol imap-client-eol)
(calcfirst imap-calculate-literal-size-first)
size)
(with-current-buffer cmd
(if calcfirst
(setq size (buffer-size)))
(when (not (equal eol "\r\n"))
;; XXX modifies buffer!
(goto-char (point-min))
(while (search-forward "\r\n" nil t)
(replace-match eol)))
(if (not calcfirst)
(setq size (buffer-size))))
(setq cmdstr
(concat cmdstr (format "{%d}" size))))
(unwind-protect
(progn
(imap-send-command-1 cmdstr)
(setq cmdstr nil)
(if (not (eq (imap-wait-for-tag tag) 'INCOMPLETE))
(setq command nil);; abort command if no cont-req
(let ((process imap-process)
(stream imap-stream)
(eol imap-client-eol))
(with-current-buffer cmd
(and imap-log
(with-current-buffer (get-buffer-create
imap-log)
(imap-disable-multibyte)
(buffer-disable-undo)
(goto-char (point-max))
(insert-buffer-substring cmd)))
(process-send-region process (point-min)
(point-max)))
(process-send-string process imap-client-eol))))
(setq imap-continuation nil)))
((functionp cmd)
(imap-send-command-1 cmdstr)
(setq cmdstr nil)
(unwind-protect
(if (not (eq (imap-wait-for-tag tag) 'INCOMPLETE))
(setq command nil);; abort command if no cont-req
(setq command (cons (funcall cmd imap-continuation)
command)))
(setq imap-continuation nil)))
(t
(error "Unknown command type"))))
(if cmdstr
(imap-send-command-1 cmdstr))
tag)))
(defun imap-wait-for-tag (tag &optional buffer)
(with-current-buffer (or buffer (current-buffer))
(while (and (null imap-continuation)
(< imap-reached-tag tag))
(or (and (not (memq (process-status imap-process) '(open run)))
(sit-for 1))
(accept-process-output imap-process 1)))
(or (assq tag imap-failed-tags)
(if imap-continuation
'INCOMPLETE
'OK))))
(defun imap-sentinel (process string)
(delete-process process))
(defun imap-find-next-line ()
"Return point at end of current line, taking into account literals.
Return nil if no complete line has arrived."
(when (re-search-forward (concat imap-server-eol "\\|{\\([0-9]+\\)}"
imap-server-eol)
nil t)
(if (match-string 1)
(if (< (point-max) (+ (point) (string-to-number (match-string 1))))
nil
(goto-char (+ (point) (string-to-number (match-string 1))))
(imap-find-next-line))
(point))))
(defun imap-arrival-filter (proc string)
"IMAP process filter."
(with-current-buffer (process-buffer proc)
(goto-char (point-max))
(insert string)
(and imap-log
(with-current-buffer (get-buffer-create imap-log)
(imap-disable-multibyte)
(buffer-disable-undo)
(goto-char (point-max))
(insert string)))
(let (end)
(goto-char (point-min))
(while (setq end (imap-find-next-line))
(save-restriction
(narrow-to-region (point-min) end)
(delete-backward-char (length imap-server-eol))
(goto-char (point-min))
(unwind-protect
(cond ((eq imap-state 'initial)
(imap-parse-greeting))
((or (eq imap-state 'auth)
(eq imap-state 'nonauth)
(eq imap-state 'selected)
(eq imap-state 'examine))
(imap-parse-response))
(t
(message "Unknown state %s in arrival filter"
imap-state)))
(delete-region (point-min) (point-max))))))))
;; Imap parser.
(defsubst imap-forward ()
(or (eobp) (forward-char)))
;; number = 1*DIGIT
;; ; Unsigned 32-bit integer
;; ; (0 <= n < 4,294,967,296)
(defsubst imap-parse-number ()
(when (looking-at "[0-9]+")
(prog1
(string-to-number (match-string 0))
(goto-char (match-end 0)))))
;; literal = "{" number "}" CRLF *CHAR8
;; ; Number represents the number of CHAR8s
(defsubst imap-parse-literal ()
(when (looking-at "{\\([0-9]+\\)}\r\n")
(let ((pos (match-end 0))
(len (string-to-number (match-string 1))))
(if (< (point-max) (+ pos len))
nil
(goto-char (+ pos len))
(buffer-substring pos (+ pos len))))))
;; string = quoted / literal
;;
;; quoted = DQUOTE *QUOTED-CHAR DQUOTE
;;
;; QUOTED-CHAR = <any TEXT-CHAR except quoted-specials> /
;; "\" quoted-specials
;;
;; quoted-specials = DQUOTE / "\"
;;
;; TEXT-CHAR = <any CHAR except CR and LF>
(defsubst imap-parse-string ()
(cond ((eq (char-after) ?\")
(forward-char 1)
(let ((p (point)) (name ""))
(skip-chars-forward "^\"\\\\")
(setq name (buffer-substring p (point)))
(while (eq (char-after) ?\\)
(setq p (1+ (point)))
(forward-char 2)
(skip-chars-forward "^\"\\\\")
(setq name (concat name (buffer-substring p (point)))))
(forward-char 1)
name))
((eq (char-after) ?{)
(imap-parse-literal))))
;; nil = "NIL"
(defsubst imap-parse-nil ()
(if (looking-at "NIL")
(goto-char (match-end 0))))
;; nstring = string / nil
(defsubst imap-parse-nstring ()
(or (imap-parse-string)
(and (imap-parse-nil)
nil)))
;; astring = atom / string
;;
;; atom = 1*ATOM-CHAR
;;
;; ATOM-CHAR = <any CHAR except atom-specials>
;;
;; atom-specials = "(" / ")" / "{" / SP / CTL / list-wildcards /
;; quoted-specials
;;
;; list-wildcards = "%" / "*"
;;
;; quoted-specials = DQUOTE / "\"
(defsubst imap-parse-astring ()
(or (imap-parse-string)
(buffer-substring (point)
(if (re-search-forward "[(){ \r\n%*\"\\]" nil t)
(goto-char (1- (match-end 0)))
(end-of-line)
(point)))))
;; address = "(" addr-name SP addr-adl SP addr-mailbox SP
;; addr-host ")"
;;
;; addr-adl = nstring
;; ; Holds route from [RFC-822] route-addr if
;; ; non-NIL
;;
;; addr-host = nstring
;; ; NIL indicates [RFC-822] group syntax.
;; ; Otherwise, holds [RFC-822] domain name
;;
;; addr-mailbox = nstring
;; ; NIL indicates end of [RFC-822] group; if
;; ; non-NIL and addr-host is NIL, holds
;; ; [RFC-822] group name.
;; ; Otherwise, holds [RFC-822] local-part
;; ; after removing [RFC-822] quoting
;;
;; addr-name = nstring
;; ; If non-NIL, holds phrase from [RFC-822]
;; ; mailbox after removing [RFC-822] quoting
;;
(defsubst imap-parse-address ()
(let (address)
(when (eq (char-after) ?\()
(imap-forward)
(setq address (vector (prog1 (imap-parse-nstring)
(imap-forward))
(prog1 (imap-parse-nstring)
(imap-forward))
(prog1 (imap-parse-nstring)
(imap-forward))
(imap-parse-nstring)))
(when (eq (char-after) ?\))
(imap-forward)
address))))
;; address-list = "(" 1*address ")" / nil
;;
;; nil = "NIL"
(defsubst imap-parse-address-list ()
(if (eq (char-after) ?\()
(let (address addresses)
(imap-forward)
(while (and (not (eq (char-after) ?\)))
;; next line for MS Exchange bug
(progn (and (eq (char-after) ? ) (imap-forward)) t)
(setq address (imap-parse-address)))
(setq addresses (cons address addresses)))
(when (eq (char-after) ?\))
(imap-forward)
(nreverse addresses)))
(assert (imap-parse-nil))))
;; mailbox = "INBOX" / astring
;; ; INBOX is case-insensitive. All case variants of
;; ; INBOX (e.g. "iNbOx") MUST be interpreted as INBOX
;; ; not as an astring. An astring which consists of
;; ; the case-insensitive sequence "I" "N" "B" "O" "X"
;; ; is considered to be INBOX and not an astring.
;; ; Refer to section 5.1 for further
;; ; semantic details of mailbox names.
(defsubst imap-parse-mailbox ()
(let ((mailbox (imap-parse-astring)))
(if (string-equal "INBOX" (upcase mailbox))
"INBOX"
mailbox)))
;; greeting = "*" SP (resp-cond-auth / resp-cond-bye) CRLF
;;
;; resp-cond-auth = ("OK" / "PREAUTH") SP resp-text
;; ; Authentication condition
;;
;; resp-cond-bye = "BYE" SP resp-text
(defun imap-parse-greeting ()
"Parse a IMAP greeting."
(cond ((looking-at "\\* OK ")
(setq imap-state 'nonauth))
((looking-at "\\* PREAUTH ")
(setq imap-state 'auth))
((looking-at "\\* BYE ")
(setq imap-state 'closed))))
;; response = *(continue-req / response-data) response-done
;;
;; continue-req = "+" SP (resp-text / base64) CRLF
;;
;; response-data = "*" SP (resp-cond-state / resp-cond-bye /
;; mailbox-data / message-data / capability-data) CRLF
;;
;; response-done = response-tagged / response-fatal
;;
;; response-fatal = "*" SP resp-cond-bye CRLF
;; ; Server closes connection immediately
;;
;; response-tagged = tag SP resp-cond-state CRLF
;;
;; resp-cond-state = ("OK" / "NO" / "BAD") SP resp-text
;; ; Status condition
;;
;; resp-cond-bye = "BYE" SP resp-text
;;
;; mailbox-data = "FLAGS" SP flag-list /
;; "LIST" SP mailbox-list /
;; "LSUB" SP mailbox-list /
;; "SEARCH" *(SP nz-number) /
;; "STATUS" SP mailbox SP "("
;; [status-att SP number *(SP status-att SP number)] ")" /
;; number SP "EXISTS" /
;; number SP "RECENT"
;;
;; message-data = nz-number SP ("EXPUNGE" / ("FETCH" SP msg-att))
;;
;; capability-data = "CAPABILITY" *(SP capability) SP "IMAP4rev1"
;; *(SP capability)
;; ; IMAP4rev1 servers which offer RFC 1730
;; ; compatibility MUST list "IMAP4" as the first
;; ; capability.
(defun imap-parse-response ()
"Parse a IMAP command response."
(let (token)
(case (setq token (read (current-buffer)))
(+ (setq imap-continuation
(or (buffer-substring (min (point-max) (1+ (point)))
(point-max))
t)))
(* (case (prog1 (setq token (read (current-buffer)))
(imap-forward))
(OK (imap-parse-resp-text))
(NO (imap-parse-resp-text))
(BAD (imap-parse-resp-text))
(BYE (imap-parse-resp-text))
(FLAGS (imap-mailbox-put 'flags (imap-parse-flag-list)))
(LIST (imap-parse-data-list 'list))
(LSUB (imap-parse-data-list 'lsub))
(SEARCH (imap-mailbox-put
'search
(read (concat "(" (buffer-substring (point) (point-max)) ")"))))
(STATUS (imap-parse-status))
(CAPABILITY (setq imap-capability
(read (concat "(" (upcase (buffer-substring
(point) (point-max)))
")"))))
(ACL (imap-parse-acl))
(t (case (prog1 (read (current-buffer))
(imap-forward))
(EXISTS (imap-mailbox-put 'exists token))
(RECENT (imap-mailbox-put 'recent token))
(EXPUNGE t)
(FETCH (imap-parse-fetch token))
(t (message "Garbage: %s" (buffer-string)))))))
(t (let (status)
(if (not (integerp token))
(message "Garbage: %s" (buffer-string))
(case (prog1 (setq status (read (current-buffer)))
(imap-forward))
(OK (progn
(setq imap-reached-tag (max imap-reached-tag token))
(imap-parse-resp-text)))
(NO (progn
(setq imap-reached-tag (max imap-reached-tag token))
(save-excursion
(imap-parse-resp-text))
(let (code text)
(when (eq (char-after) ?\[)
(setq code (buffer-substring (point)
(search-forward "]")))
(imap-forward))
(setq text (buffer-substring (point) (point-max)))
(push (list token status code text)
imap-failed-tags))))
(BAD (progn
(setq imap-reached-tag (max imap-reached-tag token))
(save-excursion
(imap-parse-resp-text))
(let (code text)
(when (eq (char-after) ?\[)
(setq code (buffer-substring (point)
(search-forward "]")))
(imap-forward))
(setq text (buffer-substring (point) (point-max)))
(push (list token status code text) imap-failed-tags)
(error "Internal error, tag %s status %s code %s text %s"
token status code text))))
(t (message "Garbage: %s" (buffer-string))))))))))
;; resp-text = ["[" resp-text-code "]" SP] text
;;
;; text = 1*TEXT-CHAR
;;
;; TEXT-CHAR = <any CHAR except CR and LF>
(defun imap-parse-resp-text ()
(imap-parse-resp-text-code))
;; resp-text-code = "ALERT" /
;; "BADCHARSET [SP "(" astring *(SP astring) ")" ] /
;; "NEWNAME" SP string SP string /
;; "PARSE" /
;; "PERMANENTFLAGS" SP "("
;; [flag-perm *(SP flag-perm)] ")" /
;; "READ-ONLY" /
;; "READ-WRITE" /
;; "TRYCREATE" /
;; "UIDNEXT" SP nz-number /
;; "UIDVALIDITY" SP nz-number /
;; "UNSEEN" SP nz-number /
;; resp-text-atom [SP 1*<any TEXT-CHAR except "]">]
;;
;; resp_code_apnd = "APPENDUID" SPACE nz_number SPACE uniqueid
;;
;; resp_code_copy = "COPYUID" SPACE nz_number SPACE set SPACE set
;;
;; set = sequence-num / (sequence-num ":" sequence-num) /
;; (set "," set)
;; ; Identifies a set of messages. For message
;; ; sequence numbers, these are consecutive
;; ; numbers from 1 to the number of messages in
;; ; the mailbox
;; ; Comma delimits individual numbers, colon
;; ; delimits between two numbers inclusive.
;; ; Example: 2,4:7,9,12:* is 2,4,5,6,7,9,12,13,
;; ; 14,15 for a mailbox with 15 messages.
;;
;; sequence-num = nz-number / "*"
;; ; * is the largest number in use. For message
;; ; sequence numbers, it is the number of messages
;; ; in the mailbox. For unique identifiers, it is
;; ; the unique identifier of the last message in
;; ; the mailbox.
;;
;; flag-perm = flag / "\*"
;;
;; flag = "\Answered" / "\Flagged" / "\Deleted" /
;; "\Seen" / "\Draft" / flag-keyword / flag-extension
;; ; Does not include "\Recent"
;;
;; flag-extension = "\" atom
;; ; Future expansion. Client implementations
;; ; MUST accept flag-extension flags. Server
;; ; implementations MUST NOT generate
;; ; flag-extension flags except as defined by
;; ; future standard or standards-track
;; ; revisions of this specification.
;;
;; flag-keyword = atom
;;
;; resp-text-atom = 1*<any ATOM-CHAR except "]">
(defun imap-parse-resp-text-code ()
(when (eq (char-after) ?\[)
(imap-forward)
(cond ((search-forward "PERMANENTFLAGS " nil t)
(imap-mailbox-put 'permanentflags (imap-parse-flag-list)))
((search-forward "UIDNEXT " nil t)
(imap-mailbox-put 'uidnext (read (current-buffer))))
((search-forward "UNSEEN " nil t)
(imap-mailbox-put 'unseen (read (current-buffer))))
((looking-at "UIDVALIDITY \\([0-9]+\\)")
(imap-mailbox-put 'uidvalidity (match-string 1)))
((search-forward "READ-ONLY" nil t)
(imap-mailbox-put 'read-only t))
((search-forward "NEWNAME " nil t)
(let (oldname newname)
(setq oldname (imap-parse-string))
(imap-forward)
(setq newname (imap-parse-string))
(imap-mailbox-put 'newname newname oldname)))
((search-forward "TRYCREATE" nil t)
(imap-mailbox-put 'trycreate t imap-current-target-mailbox))
((looking-at "APPENDUID \\([0-9]+\\) \\([0-9]+\\)")
(imap-mailbox-put 'appenduid
(list (match-string 1)
(string-to-number (match-string 2)))
imap-current-target-mailbox))
((looking-at "COPYUID \\([0-9]+\\) \\([0-9,:]+\\) \\([0-9,:]+\\)")
(imap-mailbox-put 'copyuid (list (match-string 1)
(match-string 2)
(match-string 3))
imap-current-target-mailbox))
((search-forward "ALERT] " nil t)
(message "Imap server %s information: %s" imap-server
(buffer-substring (point) (point-max)))))))
;; mailbox-list = "(" [mbx-list-flags] ")" SP
;; (DQUOTE QUOTED-CHAR DQUOTE / nil) SP mailbox
;;
;; mbx-list-flags = *(mbx-list-oflag SP) mbx-list-sflag
;; *(SP mbx-list-oflag) /
;; mbx-list-oflag *(SP mbx-list-oflag)
;;
;; mbx-list-oflag = "\Noinferiors" / flag-extension
;; ; Other flags; multiple possible per LIST response
;;
;; mbx-list-sflag = "\Noselect" / "\Marked" / "\Unmarked"
;; ; Selectability flags; only one per LIST response
;;
;; QUOTED-CHAR = <any TEXT-CHAR except quoted-specials> /
;; "\" quoted-specials
;;
;; quoted-specials = DQUOTE / "\"
(defun imap-parse-data-list (type)
(let (flags delimiter mailbox)
(setq flags (imap-parse-flag-list))
(when (looking-at " NIL\\| \"\\\\?\\(.\\)\"")
(setq delimiter (match-string 1))
(goto-char (1+ (match-end 0)))
(when (setq mailbox (imap-parse-mailbox))
(imap-mailbox-put type t mailbox)
(imap-mailbox-put 'list-flags flags mailbox)
(imap-mailbox-put 'delimiter delimiter mailbox)))))
;; msg_att ::= "(" 1#("ENVELOPE" SPACE envelope /
;; "FLAGS" SPACE "(" #(flag / "\Recent") ")" /
;; "INTERNALDATE" SPACE date_time /
;; "RFC822" [".HEADER" / ".TEXT"] SPACE nstring /
;; "RFC822.SIZE" SPACE number /
;; "BODY" ["STRUCTURE"] SPACE body /
;; "BODY" section ["<" number ">"] SPACE nstring /
;; "UID" SPACE uniqueid) ")"
;;
;; date_time ::= <"> date_day_fixed "-" date_month "-" date_year
;; SPACE time SPACE zone <">
;;
;; section ::= "[" [section_text / (nz_number *["." nz_number]
;; ["." (section_text / "MIME")])] "]"
;;
;; section_text ::= "HEADER" / "HEADER.FIELDS" [".NOT"]
;; SPACE header_list / "TEXT"
;;
;; header_fld_name ::= astring
;;
;; header_list ::= "(" 1#header_fld_name ")"
(defsubst imap-parse-header-list ()
(when (eq (char-after) ?\()
(let (strlist)
(while (not (eq (char-after) ?\)))
(imap-forward)
(push (imap-parse-astring) strlist))
(imap-forward)
(nreverse strlist))))
(defsubst imap-parse-fetch-body-section ()
(let ((section
(buffer-substring (point) (1- (re-search-forward "[] ]" nil t)))))
(if (eq (char-before) ? )
(prog1
(mapconcat 'identity (cons section (imap-parse-header-list)) " ")
(search-forward "]" nil t))
section)))
(defun imap-parse-fetch (response)
(when (eq (char-after) ?\()
(let (uid flags envelope internaldate rfc822 rfc822header rfc822text
rfc822size body bodydetail bodystructure)
(while (not (eq (char-after) ?\)))
(imap-forward)
(let ((token (read (current-buffer))))
(imap-forward)
(cond ((eq token 'UID)
(setq uid (ignore-errors (read (current-buffer)))))
((eq token 'FLAGS)
(setq flags (imap-parse-flag-list)))
((eq token 'ENVELOPE)
(setq envelope (imap-parse-envelope)))
((eq token 'INTERNALDATE)
(setq internaldate (imap-parse-string)))
((eq token 'RFC822)
(setq rfc822 (imap-parse-nstring)))
((eq token 'RFC822.HEADER)
(setq rfc822header (imap-parse-nstring)))
((eq token 'RFC822.TEXT)
(setq rfc822text (imap-parse-nstring)))
((eq token 'RFC822.SIZE)
(setq rfc822size (read (current-buffer))))
((eq token 'BODY)
(if (eq (char-before) ?\[)
(push (list
(upcase (imap-parse-fetch-body-section))
(and (eq (char-after) ?<)
(buffer-substring (1+ (point))
(search-forward ">" nil t)))
(progn (imap-forward)
(imap-parse-nstring)))
bodydetail)
(setq body (imap-parse-body))))
((eq token 'BODYSTRUCTURE)
(setq bodystructure (imap-parse-body))))))
(when uid
(setq imap-current-message uid)
(imap-message-put uid 'UID uid)
(and flags (imap-message-put uid 'FLAGS flags))
(and envelope (imap-message-put uid 'ENVELOPE envelope))
(and internaldate (imap-message-put uid 'INTERNALDATE internaldate))
(and rfc822 (imap-message-put uid 'RFC822 rfc822))
(and rfc822header (imap-message-put uid 'RFC822.HEADER rfc822header))
(and rfc822text (imap-message-put uid 'RFC822.TEXT rfc822text))
(and rfc822size (imap-message-put uid 'RFC822.SIZE rfc822size))
(and body (imap-message-put uid 'BODY body))
(and bodydetail (imap-message-put uid 'BODYDETAIL bodydetail))
(and bodystructure (imap-message-put uid 'BODYSTRUCTURE bodystructure))
(run-hooks 'imap-fetch-data-hook)))))
;; mailbox-data = ...
;; "STATUS" SP mailbox SP "("
;; [status-att SP number
;; *(SP status-att SP number)] ")"
;; ...
;;
;; status-att = "MESSAGES" / "RECENT" / "UIDNEXT" / "UIDVALIDITY" /
;; "UNSEEN"
(defun imap-parse-status ()
(let ((mailbox (imap-parse-mailbox)))
(when (and mailbox (search-forward "(" nil t))
(while (not (eq (char-after) ?\)))
(let ((token (read (current-buffer))))
(cond ((eq token 'MESSAGES)
(imap-mailbox-put 'messages (read (current-buffer)) mailbox))
((eq token 'RECENT)
(imap-mailbox-put 'recent (read (current-buffer)) mailbox))
((eq token 'UIDNEXT)
(imap-mailbox-put 'uidnext (read (current-buffer)) mailbox))
((eq token 'UIDVALIDITY)
(and (looking-at " \\([0-9]+\\)")
(imap-mailbox-put 'uidvalidity (match-string 1) mailbox)
(goto-char (match-end 1))))
((eq token 'UNSEEN)
(imap-mailbox-put 'unseen (read (current-buffer)) mailbox))
(t
(message "Unknown status data %s in mailbox %s ignored"
token mailbox))))))))
;; acl_data ::= "ACL" SPACE mailbox *(SPACE identifier SPACE
;; rights)
;;
;; identifier ::= astring
;;
;; rights ::= astring
(defun imap-parse-acl ()
(let ((mailbox (imap-parse-mailbox))
identifier rights acl)
(while (eq (char-after) ?\ )
(imap-forward)
(setq identifier (imap-parse-astring))
(imap-forward)
(setq rights (imap-parse-astring))
(setq acl (append acl (list (cons identifier rights)))))
(imap-mailbox-put 'acl acl mailbox)))
;; flag-list = "(" [flag *(SP flag)] ")"
;;
;; flag = "\Answered" / "\Flagged" / "\Deleted" /
;; "\Seen" / "\Draft" / flag-keyword / flag-extension
;; ; Does not include "\Recent"
;;
;; flag-keyword = atom
;;
;; flag-extension = "\" atom
;; ; Future expansion. Client implementations
;; ; MUST accept flag-extension flags. Server
;; ; implementations MUST NOT generate
;; ; flag-extension flags except as defined by
;; ; future standard or standards-track
;; ; revisions of this specification.
(defun imap-parse-flag-list ()
(let (flag-list start)
(assert (eq (char-after) ?\())
(while (and (not (eq (char-after) ?\)))
(setq start (progn (imap-forward) (point)))
(> (skip-chars-forward "^ )" (imap-point-at-eol)) 0))
(push (buffer-substring start (point)) flag-list))
(assert (eq (char-after) ?\)))
(imap-forward)
(nreverse flag-list)))
;; envelope = "(" env-date SP env-subject SP env-from SP env-sender SP
;; env-reply-to SP env-to SP env-cc SP env-bcc SP
;; env-in-reply-to SP env-message-id ")"
;;
;; env-bcc = "(" 1*address ")" / nil
;;
;; env-cc = "(" 1*address ")" / nil
;;
;; env-date = nstring
;;
;; env-from = "(" 1*address ")" / nil
;;
;; env-in-reply-to = nstring
;;
;; env-message-id = nstring
;;
;; env-reply-to = "(" 1*address ")" / nil
;;
;; env-sender = "(" 1*address ")" / nil
;;
;; env-subject = nstring
;;
;; env-to = "(" 1*address ")" / nil
(defun imap-parse-envelope ()
(when (eq (char-after) ?\()
(imap-forward)
(vector (prog1 (imap-parse-nstring);; date
(imap-forward))
(prog1 (imap-parse-nstring);; subject
(imap-forward))
(prog1 (imap-parse-address-list);; from
(imap-forward))
(prog1 (imap-parse-address-list);; sender
(imap-forward))
(prog1 (imap-parse-address-list);; reply-to
(imap-forward))
(prog1 (imap-parse-address-list);; to
(imap-forward))
(prog1 (imap-parse-address-list);; cc
(imap-forward))
(prog1 (imap-parse-address-list);; bcc
(imap-forward))
(prog1 (imap-parse-nstring);; in-reply-to
(imap-forward))
(prog1 (imap-parse-nstring);; message-id
(imap-forward)))))
;; body-fld-param = "(" string SP string *(SP string SP string) ")" / nil
(defsubst imap-parse-string-list ()
(cond ((eq (char-after) ?\();; body-fld-param
(let (strlist str)
(imap-forward)
(while (setq str (imap-parse-string))
(push str strlist)
;; buggy stalker communigate pro 3.0 doesn't print SPC
;; between body-fld-param's sometimes
(or (eq (char-after) ?\")
(imap-forward)))
(nreverse strlist)))
((imap-parse-nil)
nil)))
;; body-extension = nstring / number /
;; "(" body-extension *(SP body-extension) ")"
;; ; Future expansion. Client implementations
;; ; MUST accept body-extension fields. Server
;; ; implementations MUST NOT generate
;; ; body-extension fields except as defined by
;; ; future standard or standards-track
;; ; revisions of this specification.
(defun imap-parse-body-extension ()
(if (eq (char-after) ?\()
(let (b-e)
(imap-forward)
(push (imap-parse-body-extension) b-e)
(while (eq (char-after) ?\ )
(imap-forward)
(push (imap-parse-body-extension) b-e))
(assert (eq (char-after) ?\)))
(imap-forward)
(nreverse b-e))
(or (imap-parse-number)
(imap-parse-nstring))))
;; body-ext-1part = body-fld-md5 [SP body-fld-dsp [SP body-fld-lang
;; *(SP body-extension)]]
;; ; MUST NOT be returned on non-extensible
;; ; "BODY" fetch
;;
;; body-ext-mpart = body-fld-param [SP body-fld-dsp [SP body-fld-lang
;; *(SP body-extension)]]
;; ; MUST NOT be returned on non-extensible
;; ; "BODY" fetch
(defsubst imap-parse-body-ext ()
(let (ext)
(when (eq (char-after) ?\ );; body-fld-dsp
(imap-forward)
(let (dsp)
(if (eq (char-after) ?\()
(progn
(imap-forward)
(push (imap-parse-string) dsp)
(imap-forward)
(push (imap-parse-string-list) dsp)
(imap-forward))
(assert (imap-parse-nil)))
(push (nreverse dsp) ext))
(when (eq (char-after) ?\ );; body-fld-lang
(imap-forward)
(if (eq (char-after) ?\()
(push (imap-parse-string-list) ext)
(push (imap-parse-nstring) ext))
(while (eq (char-after) ?\ );; body-extension
(imap-forward)
(setq ext (append (imap-parse-body-extension) ext)))))
ext))
;; body = "(" body-type-1part / body-type-mpart ")"
;;
;; body-ext-1part = body-fld-md5 [SP body-fld-dsp [SP body-fld-lang
;; *(SP body-extension)]]
;; ; MUST NOT be returned on non-extensible
;; ; "BODY" fetch
;;
;; body-ext-mpart = body-fld-param [SP body-fld-dsp [SP body-fld-lang
;; *(SP body-extension)]]
;; ; MUST NOT be returned on non-extensible
;; ; "BODY" fetch
;;
;; body-fields = body-fld-param SP body-fld-id SP body-fld-desc SP
;; body-fld-enc SP body-fld-octets
;;
;; body-fld-desc = nstring
;;
;; body-fld-dsp = "(" string SP body-fld-param ")" / nil
;;
;; body-fld-enc = (DQUOTE ("7BIT" / "8BIT" / "BINARY" / "BASE64"/
;; "QUOTED-PRINTABLE") DQUOTE) / string
;;
;; body-fld-id = nstring
;;
;; body-fld-lang = nstring / "(" string *(SP string) ")"
;;
;; body-fld-lines = number
;;
;; body-fld-md5 = nstring
;;
;; body-fld-octets = number
;;
;; body-fld-param = "(" string SP string *(SP string SP string) ")" / nil
;;
;; body-type-1part = (body-type-basic / body-type-msg / body-type-text)
;; [SP body-ext-1part]
;;
;; body-type-basic = media-basic SP body-fields
;; ; MESSAGE subtype MUST NOT be "RFC822"
;;
;; body-type-msg = media-message SP body-fields SP envelope
;; SP body SP body-fld-lines
;;
;; body-type-text = media-text SP body-fields SP body-fld-lines
;;
;; body-type-mpart = 1*body SP media-subtype
;; [SP body-ext-mpart]
;;
;; media-basic = ((DQUOTE ("APPLICATION" / "AUDIO" / "IMAGE" /
;; "MESSAGE" / "VIDEO") DQUOTE) / string) SP media-subtype
;; ; Defined in [MIME-IMT]
;;
;; media-message = DQUOTE "MESSAGE" DQUOTE SP DQUOTE "RFC822" DQUOTE
;; ; Defined in [MIME-IMT]
;;
;; media-subtype = string
;; ; Defined in [MIME-IMT]
;;
;; media-text = DQUOTE "TEXT" DQUOTE SP media-subtype
;; ; Defined in [MIME-IMT]
(defun imap-parse-body ()
(let (body)
(when (eq (char-after) ?\()
(imap-forward)
(if (eq (char-after) ?\()
(let (subbody)
(while (and (eq (char-after) ?\()
(setq subbody (imap-parse-body)))
;; buggy stalker communigate pro 3.0 insert a SPC between
;; parts in multiparts
(when (and (eq (char-after) ?\ )
(eq (char-after (1+ (point))) ?\())
(imap-forward))
(push subbody body))
(imap-forward)
(push (imap-parse-string) body);; media-subtype
(when (eq (char-after) ?\ );; body-ext-mpart:
(imap-forward)
(if (eq (char-after) ?\();; body-fld-param
(push (imap-parse-string-list) body)
(push (and (imap-parse-nil) nil) body))
(setq body
(append (imap-parse-body-ext) body)));; body-ext-...
(assert (eq (char-after) ?\)))
(imap-forward)
(nreverse body))
(push (imap-parse-string) body);; media-type
(imap-forward)
(push (imap-parse-string) body);; media-subtype
(imap-forward)
;; next line for Sun SIMS bug
(and (eq (char-after) ? ) (imap-forward))
(if (eq (char-after) ?\();; body-fld-param
(push (imap-parse-string-list) body)
(push (and (imap-parse-nil) nil) body))
(imap-forward)
(push (imap-parse-nstring) body);; body-fld-id
(imap-forward)
(push (imap-parse-nstring) body);; body-fld-desc
(imap-forward)
;; next `or' for Sun SIMS bug, it regard body-fld-enc as a
;; nstring and return NIL instead of defaulting back to 7BIT
;; as the standard says.
(push (or (imap-parse-nstring) "7BIT") body);; body-fld-enc
(imap-forward)
(push (imap-parse-number) body);; body-fld-octets
;; ok, we're done parsing the required parts, what comes now is one
;; of three things:
;;
;; envelope (then we're parsing body-type-msg)
;; body-fld-lines (then we're parsing body-type-text)
;; body-ext-1part (then we're parsing body-type-basic)
;;
;; the problem is that the two first are in turn optionally followed
;; by the third. So we parse the first two here (if there are any)...
(when (eq (char-after) ?\ )
(imap-forward)
(let (lines)
(cond ((eq (char-after) ?\();; body-type-msg:
(push (imap-parse-envelope) body);; envelope
(imap-forward)
(push (imap-parse-body) body);; body
;; buggy stalker communigate pro 3.0 doesn't print
;; number of lines in message/rfc822 attachment
(if (eq (char-after) ?\))
(push 0 body)
(imap-forward)
(push (imap-parse-number) body))) ;; body-fld-lines
((setq lines (imap-parse-number)) ;; body-type-text:
(push lines body)) ;; body-fld-lines
(t
(backward-char))))) ;; no match...
;; ...and then parse the third one here...
(when (eq (char-after) ?\ );; body-ext-1part:
(imap-forward)
(push (imap-parse-nstring) body);; body-fld-md5
(setq body (append (imap-parse-body-ext) body)));; body-ext-1part..
(assert (eq (char-after) ?\)))
(imap-forward)
(nreverse body)))))
(when imap-debug ; (untrace-all)
(require 'trace)
(buffer-disable-undo (get-buffer-create imap-debug))
(mapcar (lambda (f) (trace-function-background f imap-debug))
'(
imap-read-passwd
imap-utf7-encode
imap-utf7-decode
imap-error-text
imap-kerberos4s-p
imap-kerberos4-open
imap-ssl-p
imap-ssl-open
imap-network-p
imap-network-open
imap-interactive-login
imap-kerberos4a-p
imap-kerberos4-auth
imap-cram-md5-p
imap-cram-md5-auth
imap-login-p
imap-login-auth
imap-anonymous-p
imap-anonymous-auth
imap-open-1
imap-open
imap-opened
imap-authenticate
imap-close
imap-capability
imap-namespace
imap-send-command-wait
imap-mailbox-put
imap-mailbox-get
imap-mailbox-map-1
imap-mailbox-map
imap-current-mailbox
imap-current-mailbox-p-1
imap-current-mailbox-p
imap-mailbox-select-1
imap-mailbox-select
imap-mailbox-examine-1
imap-mailbox-examine
imap-mailbox-unselect
imap-mailbox-expunge
imap-mailbox-close
imap-mailbox-create-1
imap-mailbox-create
imap-mailbox-delete
imap-mailbox-rename
imap-mailbox-lsub
imap-mailbox-list
imap-mailbox-subscribe
imap-mailbox-unsubscribe
imap-mailbox-status
imap-mailbox-acl-get
imap-mailbox-acl-set
imap-mailbox-acl-delete
imap-current-message
imap-list-to-message-set
imap-fetch-asynch
imap-fetch
imap-message-put
imap-message-get
imap-message-map
imap-search
imap-message-flag-permanent-p
imap-message-flags-set
imap-message-flags-del
imap-message-flags-add
imap-message-copyuid-1
imap-message-copyuid
imap-message-copy
imap-message-appenduid-1
imap-message-appenduid
imap-message-append
imap-body-lines
imap-envelope-from
imap-send-command-1
imap-send-command
imap-wait-for-tag
imap-sentinel
imap-find-next-line
imap-arrival-filter
imap-parse-greeting
imap-parse-response
imap-parse-resp-text
imap-parse-resp-text-code
imap-parse-data-list
imap-parse-fetch
imap-parse-status
imap-parse-acl
imap-parse-flag-list
imap-parse-envelope
imap-parse-body-extension
imap-parse-body
)))
(provide 'imap)
;;; imap.el ends here