*
* Handle XMPP presence exchanges
*
- * Copyright (c) 2007 by Art Cancro
- * This code is released under the terms of the GNU General Public License.
+ * Copyright (c) 2007-2009 by Art Cancro
+ *
+ * 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 3 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
*
*/
#include <string.h>
#include <limits.h>
#include <ctype.h>
+#include <expat.h>
#include <libcitadel.h>
#include "citadel.h"
#include "server.h"
#include "internet_addressing.h"
#include "md5.h"
#include "ctdl_module.h"
-
-#ifdef HAVE_EXPAT
-#include <expat.h>
#include "serv_xmpp.h"
*/
void jabber_wholist_presence_dump(void)
{
- struct CitContext *cptr;
+ struct CitContext *cptr = NULL;
+ int nContexts, i;
+
int aide = (CC->user.axlevel >= 6);
- for (cptr = ContextList; cptr != NULL; cptr = cptr->next) {
- if (
- (((cptr->cs_flags&CS_STEALTH)==0) || (aide)) /* aides can see everyone */
- && (cptr->user.usernum != CC->user.usernum) /* don't tell me about myself */
- ) {
- cprintf("<presence type=\"available\" from=\"%s\"></presence>", cptr->cs_inet_email);
+ cptr = CtdlGetContextArray(&nContexts);
+ if (!cptr)
+ return ; /** FIXME: Does jabber need to send something to maintain the protocol? */
+
+ for (i=0; i<nContexts; i++) {
+ if (cptr[i].logged_in) {
+ if (
+ (((cptr[i].cs_flags&CS_STEALTH)==0) || (aide)) /* aides see everyone */
+ && (cptr[i].user.usernum != CC->user.usernum) /* don't show myself */
+ && (cptr[i].can_receive_im) /* IM-capable session */
+ ) {
+ cprintf("<presence type=\"available\" from=\"%s\"></presence>",
+ cptr[i].cs_inet_email);
+ }
}
}
+ free(cptr);
}
-void xmpp_presence_notify(char *presence_jid, char *presence_type) {
- /* FIXME subject this to the same conditions as above */
- cprintf("<presence type=\"%s\" from=\"%s\">", presence_type, presence_jid);
-}
+/*
+ * When a user logs in or out of the local Citadel system, notify all Jabber sessions
+ * about it.
+ */
+void xmpp_presence_notify(char *presence_jid, int event_type) {
+ struct CitContext *cptr;
+ static int unsolicited_id;
+ int visible_sessions = 0;
+ int nContexts, i;
+ int aide = (CC->user.axlevel >= 6);
+
+ if (IsEmptyStr(presence_jid)) return;
-#endif /* HAVE_EXPAT */
+ cptr = CtdlGetContextArray(&nContexts);
+ if (!cptr)
+ return ; /** FIXME: Does jabber need to send something to maintain the protocol? */
+
+ /* Count the visible sessions for this user */
+ for (i=0; i<nContexts; i++) {
+ if (cptr[i].logged_in) {
+ if (
+ (!strcasecmp(cptr[i].cs_inet_email, presence_jid))
+ && (((cptr[i].cs_flags&CS_STEALTH)==0) || (aide))
+ && (cptr[i].can_receive_im)
+ ) {
+ ++visible_sessions;
+ }
+ }
+ }
+
+ CtdlLogPrintf(CTDL_DEBUG, "%d sessions for <%s> are now visible to session %d\n",
+ visible_sessions, presence_jid, CC->cs_pid);
+
+ if ( (event_type == XMPP_EVT_LOGIN) && (visible_sessions == 1) ) {
+
+ CtdlLogPrintf(CTDL_DEBUG, "Telling session %d that <%s> logged in\n", CC->cs_pid, presence_jid);
+
+ /* Do an unsolicited roster update that adds a new contact. */
+ for (i=0; i<nContexts; i++) {
+ if (cptr[i].logged_in) {
+ if (!strcasecmp(cptr[i].cs_inet_email, presence_jid)) {
+ cprintf("<iq id=\"unsolicited_%x\" type=\"result\">",
+ ++unsolicited_id);
+ cprintf("<query xmlns=\"jabber:iq:roster\">");
+ jabber_roster_item(&cptr[i]);
+ cprintf("</query>"
+ "</iq>");
+ }
+ }
+ }
+
+ /* Transmit presence information */
+ cprintf("<presence type=\"available\" from=\"%s\"></presence>", presence_jid);
+ }
+
+ if (visible_sessions == 0) {
+ CtdlLogPrintf(CTDL_DEBUG, "Telling session %d that <%s> logged out\n", CC->cs_pid, presence_jid);
+
+ /* Transmit non-presence information */
+ cprintf("<presence type=\"unavailable\" from=\"%s\"></presence>", presence_jid);
+ cprintf("<presence type=\"unsubscribed\" from=\"%s\"></presence>", presence_jid);
+
+ /* Do an unsolicited roster update that deletes the contact. */
+ cprintf("<iq id=\"unsolicited_%x\" type=\"result\">", ++unsolicited_id);
+ cprintf("<query xmlns=\"jabber:iq:roster\">");
+ cprintf("<item jid=\"%s\" subscription=\"remove\">", presence_jid);
+ cprintf("<group>%s</group>", config.c_humannode);
+ cprintf("</item>");
+ cprintf("</query>"
+ "</iq>");
+ }
+ free(cptr);
+}
projects / citadel.git / blobdiff