/usr/share/emacs/site-lisp/elpa-src/jabber-0.8.92/jabber-vcard-avatars.el is in elpa-jabber 0.8.92+git98dc8e-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 | ;;; jabber-vcard-avatars.el --- Avatars by JEP-0153
;; Copyright (C) 2006, 2007, 2008 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., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;
;;; Code:
(require 'jabber-avatar)
(defcustom jabber-vcard-avatars-retrieve (and (fboundp 'display-images-p)
(display-images-p))
"Automatically download vCard avatars?"
:group 'jabber-avatar
:type 'boolean)
(defcustom jabber-vcard-avatars-publish t
"Publish your vCard photo as avatar?"
:group 'jabber-avatar
:type 'boolean)
(defvar jabber-vcard-avatars-current-hash
(make-hash-table :test 'equal)
"For each connection, SHA1 hash of current avatar.
Keys are full JIDs.")
(add-to-list 'jabber-presence-chain 'jabber-vcard-avatars-presence)
(defun jabber-vcard-avatars-presence (jc xml-data)
"Look for vCard avatar mark in <presence/> stanza."
;; Only look at ordinary presence
(when (and jabber-vcard-avatars-retrieve
(null (jabber-xml-get-attribute xml-data 'type)))
(let* ((from (jabber-jid-user (jabber-xml-get-attribute xml-data 'from)))
(photo (jabber-xml-path xml-data '(("vcard-temp:x:update" . "x") photo)))
(sha1-hash (car (jabber-xml-node-children photo))))
(cond
((null sha1-hash)
;; User has removed avatar
(jabber-avatar-set from nil))
((string= sha1-hash (get (jabber-jid-symbol from) 'avatar-hash))
;; Same avatar as before; do nothing
)
((jabber-avatar-find-cached sha1-hash)
;; Avatar is cached
(jabber-avatar-set from sha1-hash))
(t
;; Avatar is not cached; retrieve it
(jabber-vcard-avatars-fetch jc from sha1-hash))))))
(defun jabber-vcard-avatars-fetch (jc who sha1-hash)
"Fetch WHO's vCard, and extract avatar."
(interactive (list (jabber-read-account)
(jabber-read-jid-completing "Fetch whose vCard avatar: ")
nil))
(jabber-send-iq jc who "get" '(vCard ((xmlns . "vcard-temp")))
#'jabber-vcard-avatars-vcard (cons who sha1-hash)
#'ignore nil))
(defun jabber-vcard-avatars-vcard (jc iq closure)
"Get the photo from the vCard, and set the avatar."
(let ((from (car closure))
(sha1-hash (cdr closure))
(photo (assq 'PHOTO (jabber-vcard-parse (jabber-iq-query iq)))))
(if photo
(let ((avatar (jabber-avatar-from-base64-string (nth 2 photo)
(nth 1 photo))))
(unless (or (null sha1-hash)
(string= sha1-hash (avatar-sha1-sum avatar)))
(when jabber-avatar-verbose
(message "%s's avatar should have SHA1 sum %s, but has %s"
(jabber-jid-displayname from)
sha1-hash
(avatar-sha1-sum avatar))))
(jabber-avatar-cache avatar)
(jabber-avatar-set from avatar))
(jabber-avatar-set from nil))))
(defun jabber-vcard-avatars-find-current (jc)
"Request our own vCard, to find hash of avatar."
(when jabber-vcard-avatars-publish
(jabber-send-iq jc nil "get" '(vCard ((xmlns . "vcard-temp")))
#'jabber-vcard-avatars-find-current-1 t
#'jabber-vcard-avatars-find-current-1 nil)))
(defun jabber-vcard-avatars-find-current-1 (jc xml-data success)
(jabber-vcard-avatars-update-current
jc
(and success
(let ((photo (assq 'PHOTO (jabber-vcard-parse (jabber-iq-query xml-data)))))
(when photo
(let ((avatar (jabber-avatar-from-base64-string (nth 2 photo)
(nth 1 photo))))
(avatar-sha1-sum avatar)))))))
(defun jabber-vcard-avatars-update-current (jc new-hash)
(let ((old-hash (gethash
(jabber-connection-bare-jid jc)
jabber-vcard-avatars-current-hash)))
(when (not (string= old-hash new-hash))
(puthash (jabber-connection-bare-jid jc)
new-hash jabber-vcard-avatars-current-hash)
(jabber-send-current-presence jc))))
(add-to-list 'jabber-presence-element-functions 'jabber-vcard-avatars-presence-element)
(defun jabber-vcard-avatars-presence-element (jc)
(when jabber-vcard-avatars-publish
(let ((hash (gethash
(jabber-connection-bare-jid jc)
jabber-vcard-avatars-current-hash)))
(list
`(x ((xmlns . "vcard-temp:x:update"))
;; if "not yet ready to advertise image", don't.
;; that is, we haven't yet checked what avatar we have.
,(when hash
`(photo () ,hash)))))))
(provide 'jabber-vcard-avatars)
;; arch-tag: 3e50d460-8eae-11da-826c-000a95c2fcd0
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