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;; Author: Yuuichi Teranishi <teranisi@gohome.org>
;; Keywords: ACAP
;; Copyright (C) 2001 Yuuichi Teranishi <teranisi@gohome.org>
;; This file is not part of GNU Emacs
;; This program 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.
;;
;; This program 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:
;;
;; acap.el is an elisp library providing an interface for talking to
;; ACAP (RFC2244) servers.
;;
;; This is a transcript of short interactive session for demonstration
;; purposes.
;; (setq proc (acap-open "my.acap.server" "username" "CRAM-MD5"))
;; => #<process ACAP>
;;
;; (acap-search proc "/addressbook/" '((RETURN ("*")))))
;; => ((done-ok nil "search completed")
;; (modtime . "20010828091433000010")
;; (entry "user"
;; ((("subdataset"
;; ("."))
;; ("modtime" "20010824004532000003")
;; ("entry" "user"))))
;; (entry ""
;; ((("modtime" "20010824004532000002")
;; ("entry" "")
;; ("dataset.owner" "anonymous")
;; ("dataset.acl" ("$anyone xrwia")))))
;;
;; (acap-close proc)
;; => t
;;
;; Todo:
;; * Send literal data for STORE.
;;; History:
;;
;; 27 Aug 2001 Created (Some codes are based on imap.el.).
;;; Code:
(eval-when-compile (require 'cl))
(require 'pces)
(require 'sasl)
;; User variables.
(defgroup acap nil
"Low level ACAP issues."
:group 'applications)
(defcustom acap-default-user (user-login-name)
"Default username to use."
:type 'string
:group 'acap)
(defcustom acap-default-port 674
"Default port for ACAP."
:type 'integer
:group 'acap)
(defcustom acap-stock-passphrase nil
"Stock passphrase on memory if t."
:type 'boolean
:group 'acap)
;; Constants.
(defconst acap-server-eol "\r\n"
"The EOL string sent from the server.")
(defconst acap-client-eol "\r\n"
"The EOL string sent from the server.")
;; Internal variables.
(defvar acap-state 'closed
"ACAP state.
Valid states are `closed', `initial', `auth'.")
(defvar acap-capability nil
"Capability for server.")
(defvar acap-reached-tag 0
"Lower limit on command tags that have been parsed.")
(defvar acap-tag 0
"Command tag number.")
(defvar acap-auth nil
"Authenticated mechanism name.")
(defvar acap-process nil
"Process for the buffer.")
(defvar acap-server nil
"Server name.")
(defvar acap-port nil
"Port number.")
(defvar acap-response nil
"ACAP Response.")
(defvar acap-logging-out nil
"Non-nil when ACAP is logging out.")
(make-variable-buffer-local 'acap-state)
(make-variable-buffer-local 'acap-auth)
(make-variable-buffer-local 'acap-capability)
(make-variable-buffer-local 'acap-reached-tag)
(make-variable-buffer-local 'acap-failed-tag)
(make-variable-buffer-local 'acap-tag)
(make-variable-buffer-local 'acap-server)
(make-variable-buffer-local 'acap-port)
(make-variable-buffer-local 'acap-response)
(make-variable-buffer-local 'acap-logging-out)
(defvar acap-network-stream-alist
'((default . open-network-stream-as-binary)))
(defun acap-network-stream-open (buffer server port &optional type)
(let* ((port (or port acap-default-port))
(process (progn
(message "Connecting to %s..." server)
(funcall (cdr (assq (or type 'default)
acap-network-stream-alist))
"ACAP" buffer server port))))
(when process
(with-current-buffer buffer
(while (and (memq (process-status process) '(open run))
(goto-char (point-min))
(not (setq acap-capability (acap-parse-greeting))))
(message "Waiting for response from %s..." server)
(accept-process-output process 1))
(message "Waiting for response from %s...done" server)
(when (memq (process-status process) '(open run))
process)))))
(defvar acap-passphrase nil)
(defvar acap-rp-user nil)
(defvar acap-rp-server nil)
(defvar acap-rp-auth nil)
(defvar acap-passphrase-alist nil)
(eval-and-compile
(autoload 'ange-ftp-read-passwd "ange-ftp"))
(defun acap-read-passphrase (prompt)
"Prompt is not used."
(or acap-passphrase
(progn
(setq prompt (format "%s passphrase for %s@%s: "
acap-rp-auth acap-rp-user acap-rp-server))
(if (functionp 'read-passwd)
(read-passwd prompt)
(if (load "passwd" t)
(read-passwd prompt)
(ange-ftp-read-passwd prompt))))))
;;; Debug.
(defvar acap-debug t)
(defvar acap-debug-buffer nil)
(defun acap-debug (string)
"Insert STRING to the debug buffer."
(when acap-debug
(if (or (null acap-debug-buffer)
(not (bufferp acap-debug-buffer))
(not (buffer-live-p acap-debug-buffer)))
(setq acap-debug-buffer (get-buffer-create "*Debug acap*")))
(with-current-buffer acap-debug-buffer
(goto-char (point-max))
(insert string))))
;;; Stock passphrase (Not implemented yet)
(defun acap-stock-passphrase (user server auth passphrase)
(let ((key (format "%s/%s/%s" user server auth))
pair)
(when (setq pair (assoc key acap-passphrase-alist))
(setq acap-passphrase-alist (delete pair acap-passphrase-alist)))
(setq acap-passphrase-alist (cons
(cons key passphrase)
acap-passphrase-alist))))
(defun acap-stocked-passphrase (user server auth)
(when acap-stock-passphrase
(let ((key (format "%s/%s/%s" user server auth)))
(cdr (assoc key acap-passphrase-alist)))))
(defun acap-remove-stocked-passphrase (user server auth)
(let ((key (format "%s/%s/%s" user server auth)))
(setq acap-passphrase-alist
(delq (assoc key acap-passphrase-alist)
acap-passphrase-alist))))
;;; Open, Close
(defun acap-open (server &optional user auth port type)
(let* ((user (or user acap-default-user))
(buffer (get-buffer-create (concat " *acap on " user " at " server)))
process passphrase mechanism tag)
(with-current-buffer buffer
(erase-buffer)
(if acap-process
(delete-process acap-process))
(setq process (acap-network-stream-open buffer server port type)
acap-process process)
(set-buffer-multibyte nil)
(buffer-disable-undo)
(setq acap-state 'initial)
(set-process-filter process 'acap-arrival-filter)
(set-process-sentinel process 'acap-sentinel)
(while (and (memq (process-status process) '(open run))
(not (eq acap-state 'auth)))
(setq acap-auth
(unwind-protect
(let* ((mechanism
(sasl-find-mechanism
(if auth
(list auth)
(cdr (or (assq 'Sasl acap-capability)
(assq 'SASL acap-capability))))))
(sclient
(sasl-make-client mechanism user "acap" server))
(sasl-read-passphrase 'acap-read-passphrase)
(acap-rp-user user)
(acap-rp-server server)
(acap-rp-auth (sasl-mechanism-name mechanism))
acap-passphrase step response cont-string)
(unless (string= (sasl-mechanism-name mechanism)
"ANONYMOUS")
(setq acap-passphrase (acap-read-passphrase nil)))
(setq tag (acap-send-command
process
(concat
(format "AUTHENTICATE \"%s\""
(sasl-mechanism-name mechanism))
(if (and (setq step
(sasl-next-step sclient nil))
(sasl-step-data step))
(concat " " (prin1-to-string
(sasl-step-data step)))))))
(when (setq response (acap-wait-for-response process tag))
(while (acap-response-cont-p response)
(sasl-step-set-data
step (acap-response-cont-string response))
(acap-response-clear process)
(if (setq step (sasl-next-step sclient step))
(with-temp-buffer
(insert (or (sasl-step-data step) ""))
(setq response (acap-send-data-wait
process (current-buffer) tag)))
(setq response nil)))
(if (acap-response-ok-p response)
(progn
(setq acap-state 'auth)
mechanism)
(message "Authentication failed.")
(sit-for 1))))
nil)))
(unless acap-auth
(message "acap: Connecting to %s...failed" server))
(setq acap-server server
acap-port port)
process)))
(defun acap-close (process)
(with-current-buffer (process-buffer process)
(setq acap-logging-out t)
(unless (acap-response-ok-p (acap-send-command-wait process "LOGOUT"))
(message "Server %s didn't let me log out" acap-server))
(when (memq (process-status process) '(open run))
(delete-process process))
(erase-buffer)
t))
;;; Commands
(defun acap-noop (process)
"Execute NOOP command on PROCESS."
(acap-send-command-wait process "NOOP"))
(defun acap-lang (process lang-list)
"Execute LANG command on PROCESS."
(acap-send-command-wait process
(mapconcat
'identity
(nconc (list "LANG")
(mapcar 'prin1-to-string lang-list))
" ")))
(defun acap-search (process target &optional modifier criteria)
"Execute SEARCH command on PROCESS.
TARGET is a string which specifies what is to be searched
\(dataset or context name\).
MODIFIER is an alist of modifiers. Each element should be a list like
\(MODIFIER-NAME DATA1 DATA2...\).
CRITERIA is a search criteria string.
If CRITERIA is not specified, \"ALL\" is assumed,
Modifiers and search criteria are described in section 6.4.1 of RFC2244.
Examples:
\(acap-search process
\"/addressbook/\"
'\((DEPTH 3\)
\(RETURN \(\"addressbook.Alias\"
\"addressbook.Email\"
\"addressbook.List\"\)\)\)
\"OR NOT EQUAL \\\"addressbook.Email\\\" \\\"i\;octed\\\" NIL\\
NOT EQUAL \\\"addressbook.Email\\\" \\\"i\;octed\\\" NIL\"\)
\(acap-search process
\"/addressbook/user/fred/\"
'\(\(RETURN \(\"*\"\)\)
\"EQUAL \\\"entry\\\" \\\"i\;octed\\\" \\\"A0345\\\"\"\)"
(acap-send-command-wait process
(concat "SEARCH " (prin1-to-string target)
(if modifier " ")
(mapconcat
'prin1-to-string
(acap-flatten modifier)
" ")
" "
(or criteria "ALL"))))
(defun acap-freecontext (process name)
"Execute FREECONTEXT command on PROCESS."
(acap-send-command-wait process
(concat "FREECONTEXT " name)))
(defun acap-updatecontext (process names)
"Execute UPDATECONTEXT command on PROCESS."
(acap-send-command-wait process
(mapconcat
'identity
(nconc (list "FREECONTEXT") names)
" ")))
(defun acap-store (process entries)
"Execute STORE command on PROCESS.
ENTRIES is a store-entry list."
(with-temp-buffer
;; As far as I know, current implementation of ACAP server
;; (cyrus-smlacapd 0.5) does not accept literal argument for STORE.
;; If literal argument is available, command arguments can be sent using
;; function `acap-send-command-wait'.
(set-buffer-multibyte nil)
(insert "STORE (")
(let (beg tag)
(while entries
(cond
((stringp (car entries))
(setq beg (point))
(insert (car entries))
(goto-char beg)
(while (re-search-forward "\\\\" nil t)
(replace-match "\\\\\\\\"))
(goto-char beg)
(while (re-search-forward "\"" nil t)
(replace-match "\\\\\""))
(goto-char beg)
(insert "\"")
(goto-char (point-max))
(insert "\""))
((symbolp (car entries))
(insert (prin1-to-string (car entries)))))
(if (cdr entries)(insert " "))
(setq entries (cdr entries)))
(insert ")")
(goto-char (point-min))
(insert (with-current-buffer (process-buffer process)
(number-to-string (setq tag (setq acap-tag (1+ acap-tag)))))
" ")
(process-send-region process (point-min) (point-max))
(acap-debug (concat (buffer-string) acap-client-eol))
(process-send-string process acap-client-eol)
(acap-wait-for-response process tag))))
(defun acap-deletedsince (process name time)
"Execute DELETEDSINCE command on PROCESS."
(acap-send-command-wait process
(concat "DELETEDSINCE "
(prin1-to-string name)
" "
(prin1-to-string (acap-encode-time time)))))
(defun acap-setacl (process object identifier rights)
"Execute SETACL command on PROCESS."
(acap-send-command-wait process
(concat "SETACL "
(prin1-to-string object)
" "
(prin1-to-string identifier)
" "
(prin1-to-string rights))))
(defun acap-deleteacl (process object &optional identifier)
"Execute DELETEACL command on PROCESS."
(acap-send-command-wait process
(concat
"DELETEACL "
(prin1-to-string object)
(if identifier
(concat " " (prin1-to-string identifier))))))
(defun acap-myrights (process object)
"Execute MYRIGHTS command on PROCESS."
(acap-send-command-wait process
(concat
"MYRIGHTS "
(prin1-to-string object))))
(defun acap-listrights (process object identifier)
"Execute LISTRIGHTS command on PROCESS."
(acap-send-command-wait process
(concat
"LISTRIGHTS "
(prin1-to-string object)
" "
(prin1-to-string identifier))))
(defun acap-getquota (process dataset)
"Execute GETQUOTA command on PROCESS."
(acap-send-command-wait process
(concat
"GETQUOTA "
(prin1-to-string dataset))))
;;; response accessor.
(defun acap-response-ok-p (response)
(assq 'done-ok response))
(defun acap-response-bye-p (response)
(assq 'bye response))
(defun acap-response-bye-message (response)
(nth 1 (cdr (assq 'bye response))))
(defun acap-response-cont-p (response)
(assq 'cont response))
(defun acap-response-cont-string (response)
(cdr (assq 'cont response)))
(defun acap-response-body (response)
(cdr (or (assq 'done-ok response)
(assq 'done-no response)
(assq 'done-bad response))))
(defun acap-response-entries (response)
(let (entries)
(dolist (ent response)
(if (eq (car ent) 'entry)
(setq entries (cons ent entries))))
entries))
(defun acap-response-entry-entry (entry)
(car (cdr entry)))
(defun acap-response-entry-return-data-list (entry)
(nth 1 (cdr entry)))
(defun acap-response-return-data-list-get-value (name return-data-list)
(nth 1 (assoc name return-data-list)))
(defun acap-response-listrights (response)
(cdr (assq 'listrights response)))
;;; Send command, data.
(defun acap-response-clear (process)
(with-current-buffer (process-buffer process)
(setq acap-response nil)))
(defun acap-send-command-wait (process command)
(acap-wait-for-response process (acap-send-command process command)))
(defun acap-send-data-wait (process string tag)
(cond ((stringp string)
(acap-send-command-1 process string))
((bufferp string)
(with-current-buffer string
(acap-response-clear process)
(acap-send-command-1 process (format "{%d}" (buffer-size)))
(if (acap-response-cont-p (acap-wait-for-response process tag))
(with-current-buffer string
(acap-response-clear process)
(process-send-region process (point-min)
(point-max))
(process-send-string process acap-client-eol)))
(acap-debug (concat (buffer-string) acap-client-eol)))))
(acap-wait-for-response process tag))
(defun acap-send-command-1 (process cmdstr)
(acap-debug (concat "<-" cmdstr acap-client-eol))
(process-send-string process (concat cmdstr acap-client-eol)))
(defun acap-send-command (process command)
(with-current-buffer (process-buffer process)
(setq acap-response nil)
(if (not (listp command)) (setq command (list command)))
(let ((tag (setq acap-tag (1+ acap-tag)))
cmd cmdstr response)
(setq cmdstr (concat (number-to-string acap-tag) " "))
(while (setq cmd (pop command))
(cond ((stringp cmd)
(setq cmdstr (concat cmdstr cmd)))
((bufferp cmd)
(with-current-buffer cmd
(setq cmdstr (concat cmdstr (format "{%d}" (buffer-size)))))
(unwind-protect
(progn
(acap-send-command-1 process cmdstr)
(setq cmdstr nil
response (acap-wait-for-response process tag))
(if (not (acap-response-cont-p response))
(setq command nil) ;; abort command if no cont-req
(with-current-buffer cmd
(process-send-region process (point-min)
(point-max))
(process-send-string process acap-client-eol))))))
(t (error "Unknown command type"))))
(when cmdstr
(acap-send-command-1 process cmdstr))
tag)))
(defun acap-wait-for-response (process tag)
(with-current-buffer (process-buffer process)
(while (and (not (acap-response-cont-p acap-response))
(< acap-reached-tag tag))
(when (acap-response-bye-p acap-response)
(if acap-logging-out
(setq acap-response nil)
(error "%s"
(prog1 (acap-response-bye-message acap-response)
(setq acap-response nil)))))
(or (and (not (memq (process-status process) '(open run)))
(sit-for 1))
(let ((len (/ (point-max) 1024))
message-log-max)
(unless (< len 10)
(message "acap read: %dk" len))
(accept-process-output process 1))))
(message "")
acap-response))
;;; Sentinel, Filter.
(defun acap-sentinel (process string)
(delete-process process))
(defun acap-find-next-line ()
(when (re-search-forward (concat acap-server-eol "\\|{\\([0-9+]+\\)}"
acap-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))))
(acap-find-next-line))
(point))))
(defun acap-arrival-filter (proc string)
"ACAP process filter."
(acap-debug string)
(with-current-buffer (process-buffer proc)
(goto-char (point-max))
(insert string)
(let (end)
(goto-char (point-min))
(while (setq end (acap-find-next-line))
(save-restriction
(narrow-to-region (point-min) end)
(delete-char (- (length acap-server-eol)))
(goto-char (point-min))
(unwind-protect
(cond ((or (eq acap-state 'auth)
(eq acap-state 'initial)
(eq acap-state 'nonauth))
(acap-parse-response))
(t
(message "Unknown state %s in arrival filter"
acap-state)))
(delete-region (point-min) (point-max))))))))
;;; acap parser.
(defsubst acap-forward ()
(or (eobp) (forward-char)))
(defsubst acap-parse-number ()
(when (looking-at "[0-9]+")
(prog1
(string-to-number (match-string 0))
(goto-char (match-end 0)))))
(defsubst acap-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))))))
(defun acap-parse-greeting ()
(when (looking-at "* ACAP")
(goto-char (match-end 0))
(acap-forward)
(let (capabilities)
(while (eq (following-char) ?\()
(push (read (current-buffer)) capabilities)
(acap-forward))
(nreverse capabilities))))
;; resp-body = ["(" resp-code ")" SP] quoted
(defun acap-parse-resp-body ()
(let ((body (read (current-buffer))))
(if (listp body) ; resp-code
(list body (read (current-buffer)))
(list nil body) ; no resp-code.
)))
;; 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 acap-parse-string ()
(cond ((eq (following-char) ?\")
(forward-char)
(let ((p (point)) (name ""))
(skip-chars-forward "^\"\\\\")
(setq name (buffer-substring p (point)))
(while (eq (following-char) ?\\)
(setq p (1+ (point)))
(forward-char 2)
(skip-chars-forward "^\"\\\\")
(setq name (concat name (buffer-substring p (point)))))
(forward-char)
name))
((eq (following-char) ?{)
(acap-parse-literal))))
;; nil = "NIL"
(defsubst acap-parse-nil ()
(if (looking-at "NIL")
(goto-char (match-end 0))))
;; entry = entry-name / entry-path
;; entry-name = string-utf8
;; ;; entry name MUST NOT contain slash
;; ;; MUST NOT begin with "."
;; entry-path = string-utf8
;; ;; slash-separated path to entry
;; ;; begins with slash
(defsubst acap-parse-quoted ()
(if (eq (following-char) ?\")
(read (current-buffer))))
(defun acap-parse-entry ()
(acap-parse-quoted))
;; value = string
(defun acap-parse-value ()
(acap-parse-string))
;; value-list = "(" [value *(SP value)] ")"
(defun acap-parse-value-list ()
;; same as acl.
(when (eq (following-char) ?\()
(let (values)
(while (not (eq (following-char) ?\)))
(acap-forward)
(push (acap-parse-value) values))
(acap-forward)
(nreverse values))))
;;
;; return-data-list = return-data *(SP return-data)
;;
;; return-data = return-metadata / return-metalist /
;; return-attr-list
(defun acap-parse-return-data-list ()
(let (rlist r)
(setq rlist (list (acap-parse-return-metadata-or-return-metalist)))
(acap-forward)
(while (setq r (acap-parse-return-metadata-or-return-metalist))
(setq rlist (nconc rlist (list r)))
(acap-forward))
rlist))
(defun acap-parse-return-metadata-or-return-metalist ()
(or (acap-parse-string)
(acap-parse-value-or-return-metalist)
(and (acap-parse-nil) nil)))
(defun acap-parse-value-or-return-metalist ()
(when (eq (following-char) ?\()
(let (elems)
(while (not (eq (following-char) ?\)))
(acap-forward)
(push (or (acap-parse-value)
(acap-parse-return-metalist))
elems))
(acap-forward)
(nreverse elems))))
;; return-metalist = "(" return-metadata *(SP return-metadata) ")"
;; ;; occurs when multiple metadata items requested
;;
(defun acap-parse-return-metalist ()
(when (eq (following-char) ?\()
(let (metadatas)
(while (not (eq (following-char) ?\)))
(acap-forward)
(push (acap-parse-return-metadata) metadatas))
(acap-forward)
(nreverse metadatas))))
;; return-metadata = nil / string / value-list / acl
(defun acap-parse-return-metadata ()
(or (acap-parse-string)
(acap-parse-value-list)
(and (acap-parse-nil) nil)
;; (acap-parse-acl) acl is same as value-list.
))
;; return-attr-list = "(" return-metalist *(SP return-metalist) ")"
;; ;; occurs when "*" in RETURN pattern on SEARCH
(defun acap-parse-return-attr-list ()
(when (eq (following-char) ?\()
(let (metalists)
(while (not (eq (following-char) ?\)))
(acap-forward)
(push (acap-parse-return-metalist) metalists))
(acap-forward)
(nreverse metalists))))
(defun acap-parse-time ()
(acap-parse-quoted))
;; quoted *(SP quoted)
(defun acap-parse-quoted-list ()
(let (qlist q)
(setq qlist (list (acap-parse-quoted)))
(acap-forward)
(while (setq q (acap-parse-quoted))
(setq qlist (nconc qlist (list q)))
(acap-forward))
qlist))
(defun acap-parse-any ()
(read (current-buffer)))
(defun acap-parse-extension-data ()
(let (elist e)
(setq elist (list (acap-parse-any)))
(acap-forward)
(while (setq e (acap-parse-any))
(setq elist (nconc elist (list e)))
(acap-forward))
elist))
(defun acap-parse-response ()
"Parse a ACAP command response."
(let ((token (read (current-buffer)))
tag)
(setq
acap-response
(cons
(cond
((eq token '+)
(acap-forward)
(cons 'cont (acap-parse-string)))
((eq token '*)
;; untagged response.
(case (prog1 (setq token (read (current-buffer)))
(acap-forward))
(ADDTO (cons 'addto
(list (acap-parse-quoted)
(progn
(acap-forward)
(acap-parse-quoted))
(progn
(acap-forward)
(acap-parse-number))
(progn
(acap-forward)
(acap-parse-return-data-list)))))
(ALERT
;;; (cons 'alert (acap-parse-resp-body))
(message "%s" (nth 1 (acap-parse-resp-body))))
((BYE Bye bye)
(cons 'bye (acap-parse-resp-body)))
(CHANGE (cons 'change
(list (acap-parse-quoted)
(progn
(acap-forward)
(acap-parse-quoted))
(progn
(acap-forward)
(acap-parse-number))
(progn
(acap-forward)
(acap-parse-number))
(progn
(acap-forward)
(acap-parse-return-data-list)))))
(LANG (cons 'lang (list (acap-parse-quoted-list))))
;; response-stat
(OK (cons 'stat-ok (acap-parse-resp-body)))
(NO (cons 'stat-no (acap-parse-resp-body)))
(BAD
;;; (cons 'stat-bad (acap-parse-resp-body))
;; XXX cyrus-sml-acap does not return tagged bad response?
(error "%s" (nth 1 (acap-parse-resp-body))))))
((integerp token)
;; tagged response.
(setq tag token)
(case (prog1 (setq token (read (current-buffer)))
(acap-forward))
(DELETED (cons 'deleted (acap-parse-quoted)))
;; response-done
((OK Ok ok) (prog1 (cons 'done-ok (acap-parse-resp-body))
(setq acap-reached-tag tag)))
((NO No no) (prog1 (cons 'done-no (acap-parse-resp-body))
(setq acap-reached-tag tag)))
((BAD Bad bad) (prog1 (cons 'done-bad (acap-parse-resp-body))
(setq acap-reached-tag tag)))
(ENTRY (cons 'entry
(list
(acap-parse-entry)
(progn (acap-forward)
(acap-parse-return-data-list)))))
(LISTRIGHTS (cons 'listrights
(acap-parse-quoted-list)))
(MODTIME (cons 'modtime (acap-parse-time)))
(MYRIGHTS (cons 'myrights (acap-parse-quoted)))
(QUOTA (cons 'quota
(list (acap-parse-quoted)
(progn
(acap-forward)
(acap-parse-number))
(progn
(acap-forward)
(acap-parse-number))
(acap-parse-extension-data))))
(REFER (cons 'refer (list (acap-parse-quoted)
(acap-parse-quoted))))
(REMOVEFROM (cons 'removefrom
(list (acap-parse-quoted)
(progn
(acap-forward)
(acap-parse-quoted))
(progn
(acap-forward)
(acap-parse-number)))))
;; response-extend
(t ; extend-token
(cons 'extend (list token (acap-parse-extension-data))))))
(t ; garbage
(list 'garbage token)))
acap-response))))
;;; Utilities.
(defun acap-flatten (l)
"Flatten list-of-list."
(unless (null l)
(append
(if (and (car l)
(listp (car l)))
(car l)
(list (car l)))
(acap-flatten (cdr l)))))
(defun acap-flatten-r (l)
"Flatten list-of-list recursively."
(cond
((null l) '())
((listp l)
(append (acap-flatten (car l)) (acap-flatten (cdr l))))
(t (list l))))
(defun acap-encode-time (time)
(format-time-string "%Y%m%d%H%M%S" (current-time) t)) ; Universal time.
(defun acap-decode-time (acap-time)
(when (string-match "^\\([0-9][0-9][0-9][0-9]\\)\\([0-1][0-9]\\)\\([0-3][0-9]\\)\\([0-2][0-9]\\)\\([0-5][0-9]\\)\\([0-5][0-9]\\)" acap-time)
(encode-time (string-to-number (match-string 6 acap-time))
(string-to-number (match-string 5 acap-time))
(string-to-number (match-string 4 acap-time))
(string-to-number (match-string 3 acap-time))
(string-to-number (match-string 2 acap-time))
(string-to-number (match-string 1 acap-time))
t)))
(provide 'acap)
;;; acap.el ends here
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