/usr/share/emacs/site-lisp/elpa-src/jabber-0.8.92/jabber-export.el is in elpa-jabber 0.8.92+git98dc8e-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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;; Copyright (C) 2005, 2007 Magnus Henoch
;; Author: Magnus Henoch <mange@freemail.hu>
;; This file 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 file 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.
(require 'cl)
(defvar jabber-export-roster-widget nil)
(defvar jabber-import-subscription-p-widget nil)
;;;###autoload
(defun jabber-export-roster (jc)
"Export roster for connection JC."
(interactive (list (jabber-read-account)))
(let ((state-data (fsm-get-state-data jc)))
(jabber-export-roster-do-it
(jabber-roster-to-sexp (plist-get state-data :roster)))))
(defun jabber-export-roster-do-it (roster)
"Create buffer from which ROSTER can be exported to a file."
(interactive)
(with-current-buffer (get-buffer-create "Export roster")
(jabber-init-widget-buffer nil)
(widget-insert (jabber-propertize "Export roster\n"
'face 'jabber-title-large))
(widget-insert "You are about to save your roster to a file. Here
you can edit it before saving. Changes done here will
not affect your actual roster.
")
(widget-create 'push-button :notify #'jabber-export-save "Save to file")
(widget-insert " ")
(widget-create 'push-button :notify #'jabber-export-remove-regexp "Remove by regexp")
(widget-insert "\n\n")
(make-local-variable 'jabber-export-roster-widget)
(jabber-export-display roster)
(widget-setup)
(widget-minor-mode 1)
(goto-char (point-min))
(switch-to-buffer (current-buffer))))
;;;###autoload
(defun jabber-import-roster (jc file)
"Create buffer for roster import for connection JC from FILE."
(interactive (list (jabber-read-account)
(read-file-name "Import roster from file: ")))
(let ((roster
(with-temp-buffer
(let ((coding-system-for-read 'utf-8))
(jabber-roster-xml-to-sexp
(car (xml-parse-file file)))))))
(with-current-buffer (get-buffer-create "Import roster")
(setq jabber-buffer-connection jc)
(jabber-init-widget-buffer nil)
(widget-insert (jabber-propertize "Import roster\n"
'face 'jabber-title-large))
(widget-insert "You are about to import the contacts below to your roster.
")
(make-local-variable 'jabber-import-subscription-p-widget)
(setq jabber-import-subscription-p-widget
(widget-create 'checkbox))
(widget-insert " Adjust subscriptions\n")
(widget-create 'push-button :notify #'jabber-import-doit "Import to roster")
(widget-insert " ")
(widget-create 'push-button :notify #'jabber-export-remove-regexp "Remove by regexp")
(widget-insert "\n\n")
(make-local-variable 'jabber-export-roster-widget)
(jabber-export-display roster)
(widget-setup)
(widget-minor-mode 1)
(goto-char (point-min))
(switch-to-buffer (current-buffer)))))
(defun jabber-export-remove-regexp (&rest ignore)
(let* ((value (widget-value jabber-export-roster-widget))
(length-before (length value))
(regexp (read-string "Remove JIDs matching regexp: ")))
(setq value (delete-if
#'(lambda (a)
(string-match regexp (nth 0 a)))
value))
(widget-value-set jabber-export-roster-widget value)
(widget-setup)
(message "%d items removed" (- length-before (length value)))))
(defun jabber-export-save (&rest ignore)
"Export roster to file."
(let ((items (mapcar #'jabber-roster-sexp-to-xml (widget-value jabber-export-roster-widget)))
(coding-system-for-write 'utf-8))
(with-temp-file (read-file-name "Export roster to file: ")
(insert "<iq xmlns='jabber:client'><query xmlns='jabber:iq:roster'>\n")
(dolist (item items)
(insert (jabber-sexp2xml item) "\n"))
(insert "</query></iq>\n"))
(message "Roster saved")))
(defun jabber-import-doit (&rest ignore)
"Import roster being edited in widget."
(let* ((state-data (fsm-get-state-data jabber-buffer-connection))
(jabber-roster (plist-get state-data :roster))
roster-delta)
(dolist (n (widget-value jabber-export-roster-widget))
(let* ((jid (nth 0 n))
(name (and (not (zerop (length (nth 1 n))))
(nth 1 n)))
(subscription (nth 2 n))
(groups (nth 3 n))
(jid-symbol (jabber-jid-symbol jid))
(in-roster-p (memq jid-symbol jabber-roster))
(jid-name (and in-roster-p (get jid-symbol 'name)))
(jid-subscription (and in-roster-p (get jid-symbol 'subscription)))
(jid-groups (and in-roster-p (get jid-symbol 'groups))))
;; Do we need to change the roster?
(when (or
;; If the contact is not in the roster already,
(not in-roster-p)
;; or if the import introduces a name,
(and name (not jid-name))
;; or changes a name,
(and name jid-name (not (string= name jid-name)))
;; or introduces new groups.
(set-difference groups jid-groups :test #'string=))
(push (jabber-roster-sexp-to-xml
(list jid (or name jid-name) nil (union groups jid-groups :test #'string=))
t)
roster-delta))
;; And adujst subscription.
(when (widget-value jabber-import-subscription-p-widget)
(let ((want-to (member subscription '("to" "both")))
(want-from (member subscription '("from" "both")))
(have-to (member jid-subscription '("to" "both")))
(have-from (member jid-subscription '("from" "both"))))
(flet ((request-subscription
(type)
(jabber-send-sexp jabber-buffer-connection
`(presence ((to . ,jid)
(type . ,type))))))
(cond
((and want-to (not have-to))
(request-subscription "subscribe"))
((and have-to (not want-to))
(request-subscription "unsubscribe")))
(cond
((and want-from (not have-from))
;; not much to do here
)
((and have-from (not want-from))
(request-subscription "unsubscribed"))))))))
(when roster-delta
(jabber-send-iq jabber-buffer-connection
nil "set"
`(query ((xmlns . "jabber:iq:roster")) ,@roster-delta)
#'jabber-report-success "Roster import"
#'jabber-report-success "Roster import"))))
(defun jabber-roster-to-sexp (roster)
"Convert ROSTER to simpler sexp format.
Return a list, where each item is a vector:
\[jid name subscription groups]
where groups is a list of strings."
(mapcar
#'(lambda (n)
(list
(symbol-name n)
(or (get n 'name) "")
(get n 'subscription)
(get n 'groups)))
roster))
(defun jabber-roster-sexp-to-xml (sexp &optional omit-subscription)
"Convert SEXP to XML format.
Return an XML node."
`(item ((jid . ,(nth 0 sexp))
,@(let ((name (nth 1 sexp)))
(unless (zerop (length name))
`((name . ,name))))
,@(unless omit-subscription
`((subscription . ,(nth 2 sexp)))))
,@(mapcar
#'(lambda (g)
(list 'group nil g))
(nth 3 sexp))))
(defun jabber-roster-xml-to-sexp (xml-data)
"Convert XML-DATA to simpler sexp format.
XML-DATA is an <iq> node with a <query xmlns='jabber:iq:roster'> child.
See `jabber-roster-to-sexp' for description of output format."
(assert (eq (jabber-xml-node-name xml-data) 'iq))
(let ((query (car (jabber-xml-get-children xml-data 'query))))
(assert query)
(mapcar
#'(lambda (n)
(list
(jabber-xml-get-attribute n 'jid)
(or (jabber-xml-get-attribute n 'name) "")
(jabber-xml-get-attribute n 'subscription)
(mapcar
#'(lambda (g)
(car (jabber-xml-node-children g)))
(jabber-xml-get-children n 'group))))
(jabber-xml-get-children query 'item))))
(defun jabber-export-display (roster)
(setq jabber-export-roster-widget
(widget-create
'(repeat
:tag "Roster"
(list :format "%v"
(string :tag "JID")
(string :tag "Name")
(choice :tag "Subscription"
(const "none")
(const "both")
(const "to")
(const "from"))
(repeat :tag "Groups"
(string :tag "Group"))))
:value roster)))
(provide 'jabber-export)
;;; arch-tag: 9c6b94a9-290a-4c0f-9286-72bd9c1fb8a3
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