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;; jabber-iq.el - infoquery functions
;; Copyright (C) 2003, 2004, 2007, 2008 - Magnus Henoch - mange@freemail.hu
;; Copyright (C) 2002, 2003, 2004 - tom berger - object@intelectronica.net
;; This file is a part of jabber.el.
;; 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 of the License, 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 this program; if not, write to the Free Software
;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
(require 'jabber-core)
(require 'jabber-util)
(require 'jabber-keymap)
(defvar *jabber-open-info-queries* nil
"an alist of open query id and their callback functions")
(defvar jabber-iq-get-xmlns-alist nil
"Mapping from XML namespace to handler for IQ GET requests.")
(defvar jabber-iq-set-xmlns-alist nil
"Mapping from XML namespace to handler for IQ SET requests.")
(defvar jabber-browse-mode-map
(let ((map (make-sparse-keymap)))
(set-keymap-parent map jabber-common-keymap)
(define-key map [mouse-2] 'jabber-popup-combined-menu)
map))
(defcustom jabber-browse-mode-hook nil
"Hook run when entering Browse mode."
:group 'jabber
:type 'hook)
(defgroup jabber-browse nil "browse display options"
:group 'jabber)
(defcustom jabber-browse-buffer-format "*-jabber-browse:-%n-*"
"The format specification for the name of browse buffers.
These fields are available at this moment:
%n JID to browse"
:type 'string
:group 'jabber-browse)
(defun jabber-browse-mode ()
"\\{jabber-browse-mode-map}"
(kill-all-local-variables)
(setq major-mode 'jabber-browse-mode
mode-name "jabber-browse")
(use-local-map jabber-browse-mode-map)
(setq buffer-read-only t)
(if (fboundp 'run-mode-hooks)
(run-mode-hooks 'jabber-browse-mode-hook)
(run-hooks 'jabber-browse-mode-hook)))
(put 'jabber-browse-mode 'mode-class 'special)
(add-to-list 'jabber-iq-chain 'jabber-process-iq)
(defun jabber-process-iq (jc xml-data)
"process an incoming iq stanza"
(let* ((id (jabber-xml-get-attribute xml-data 'id))
(type (jabber-xml-get-attribute xml-data 'type))
(from (jabber-xml-get-attribute xml-data 'from))
(query (jabber-iq-query xml-data))
(callback (assoc id *jabber-open-info-queries*)))
(cond
;; if type is "result" or "error", this is a response to a query we sent.
((or (string= type "result")
(string= type "error"))
(let ((callback-cons (nth (cdr (assoc type '(("result" . 0)
("error" . 1)))) (cdr callback))))
(if (consp callback-cons)
(funcall (car callback-cons) jc xml-data (cdr callback-cons))))
(setq *jabber-open-info-queries* (delq callback *jabber-open-info-queries*)))
;; if type is "get" or "set", correct action depends on namespace of request.
((and (listp query)
(or (string= type "get")
(string= type "set")))
(let* ((which-alist (eval (cdr (assoc type
(list
(cons "get" 'jabber-iq-get-xmlns-alist)
(cons "set" 'jabber-iq-set-xmlns-alist))))))
(handler (cdr (assoc (jabber-xml-get-attribute query 'xmlns) which-alist))))
(if handler
(condition-case error-var
(funcall handler jc xml-data)
(jabber-error
(apply 'jabber-send-iq-error jc from id query (cdr error-var)))
(error (jabber-send-iq-error jc from id query "wait" 'internal-server-error (error-message-string error-var))))
(jabber-send-iq-error jc from id query "cancel" 'feature-not-implemented)))))))
(defun jabber-send-iq (jc to type query success-callback success-closure-data
error-callback error-closure-data &optional result-id)
"Send an iq stanza to the specified entity, and optionally set up a callback.
JC is the Jabber connection.
TO is the addressee.
TYPE is one of \"get\", \"set\", \"result\" or \"error\".
QUERY is a list containing the child of the iq node in the format `jabber-sexp2xml'
accepts.
SUCCESS-CALLBACK is the function to be called when a successful result arrives.
SUCCESS-CLOSURE-DATA is an extra argument to SUCCESS-CALLBACK.
ERROR-CALLBACK is the function to be called when an error arrives.
ERROR-CLOSURE-DATA is an extra argument to ERROR-CALLBACK.
RESULT-ID is the id to be used for a response to a received iq message.
`jabber-report-success' and `jabber-process-data' are common callbacks.
The callback functions are called like this:
\(funcall CALLBACK JC XML-DATA CLOSURE-DATA)
with XML-DATA being the IQ stanza received in response. "
(let ((id (or result-id (apply 'format "emacs-iq-%d.%d.%d" (current-time)))))
(if (or success-callback error-callback)
(setq *jabber-open-info-queries* (cons (list id
(cons success-callback success-closure-data)
(cons error-callback error-closure-data))
*jabber-open-info-queries*)))
(jabber-send-sexp jc
(list 'iq (append
(if to (list (cons 'to to)))
(list (cons 'type type))
(list (cons 'id id)))
query))))
(defun jabber-send-iq-error (jc to id original-query error-type condition
&optional text app-specific)
"Send an error iq stanza to the specified entity in response to a
previously sent iq stanza.
TO is the addressee.
ID is the id of the iq stanza that caused the error.
ORIGINAL-QUERY is the original query, which should be included in the
error, or nil.
ERROR-TYPE is one of \"cancel\", \"continue\", \"modify\", \"auth\"
and \"wait\".
CONDITION is a symbol denoting a defined XMPP condition.
TEXT is a string to be sent in the error message, or nil for no text.
APP-SPECIFIC is a list of extra XML tags.
See section 9.3 of XMPP Core."
(jabber-send-sexp
jc
`(iq (,@(when to `((to . ,to)))
(type . "error")
(id . ,(or id "")))
,original-query
(error ((type . ,error-type))
(,condition ((xmlns . "urn:ietf:params:xml:ns:xmpp-stanzas")))
,(if text
`(text ((xmlns . "urn:ietf:params:xml:ns:xmpp-stanzas"))
,text))
,@app-specific))))
(defun jabber-process-data (jc xml-data closure-data)
"Process random results from various requests."
(let ((from (or (jabber-xml-get-attribute xml-data 'from) (plist-get (fsm-get-state-data jc) :server)))
(xmlns (jabber-iq-xmlns xml-data))
(type (jabber-xml-get-attribute xml-data 'type)))
(with-current-buffer (get-buffer-create (format-spec jabber-browse-buffer-format
(list (cons ?n from))))
(if (not (eq major-mode 'jabber-browse-mode))
(jabber-browse-mode))
(setq buffer-read-only nil)
(goto-char (point-max))
(insert (jabber-propertize from
'face 'jabber-title-large) "\n\n")
;; Put point at beginning of data
(save-excursion
;; If closure-data is a function, call it. If it is a string,
;; output it along with a description of the error. For other
;; values (e.g. nil), just dump the XML.
(cond
((functionp closure-data)
(funcall closure-data jc xml-data))
((stringp closure-data)
(insert closure-data ": " (jabber-parse-error (jabber-iq-error xml-data)) "\n\n"))
(t
(insert (format "%S\n\n" xml-data))))
(dolist (hook '(jabber-info-message-hooks jabber-alert-info-message-hooks))
(run-hook-with-args hook 'browse (current-buffer) (funcall jabber-alert-info-message-function 'browse (current-buffer))))))))
(defun jabber-silent-process-data (jc xml-data closure-data)
"Process random results from various requests to only alert hooks."
(let ((text (cond
((functionp closure-data)
(funcall closure-data jc xml-data))
((stringp closure-data)
(concat closure-data ": " (jabber-parse-error (jabber-iq-error xml-data))))
(t
(format "%S" xml-data)))))
(dolist (hook '(jabber-info-message-hooks jabber-alert-info-message-hooks))
(run-hook-with-args hook 'browse (current-buffer)
text))))
(provide 'jabber-iq)
;;; arch-tag: 5585dfa3-b59a-42ee-9292-803652c85e26
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