*
* Copyright (c) 2007-2010 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 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.
+ * 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
+ * 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
*
*/
}
+
+/*
+ * Convenience function to determine whether a particular session is visible to this user
+ */
+int xmpp_is_visible(struct CitContext *cptr) {
+ int aide = (CC->user.axlevel >= AxAideU);
+
+ if ( (cptr->logged_in)
+ && (((cptr->cs_flags&CS_STEALTH)==0) || (aide)) /* aides see everyone */
+ && (cptr->user.usernum != CC->user.usernum) /* don't show myself */
+ && (cptr->can_receive_im) /* IM-capable session */
+ ) {
+ return(1);
+ }
+ else {
+ return(0);
+ }
+}
+
+
/*
* Initial dump of the entire wholist
*/
struct CitContext *cptr = NULL;
int nContexts, i;
- int aide = (CC->user.axlevel >= AxAideU);
-
cptr = CtdlGetContextArray(&nContexts);
if (!cptr) {
return;
}
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 */
- ) {
- xmpp_indicate_presence(cptr[i].cs_inet_email);
- }
+ if (xmpp_is_visible(&cptr[i])) {
+ xmpp_indicate_presence(cptr[i].cs_inet_email);
}
}
free(cptr);
static int unsolicited_id;
int visible_sessions = 0;
int nContexts, i;
- int aide = (CC->user.axlevel >= AxAideU);
if (IsEmptyStr(presence_jid)) return;
if (CC->kill_me) return;
/* 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;
- }
+ if (xmpp_is_visible(&cptr[i])) {
+ ++visible_sessions;
}
}
/* Do an unsolicited roster update that adds a new contact. */
for (i=0; i<nContexts; i++) {
- if (cptr[i].logged_in) {
+ if (xmpp_is_visible(&cptr[i])) {
if (!strcasecmp(cptr[i].cs_inet_email, presence_jid)) {
cprintf("<iq id=\"unsolicited_%x\" type=\"result\">",
++unsolicited_id);
+void xmpp_fetch_mortuary_backend(long msgnum, void *userdata) {
+ HashList *mortuary = (HashList *) userdata;
+ struct CtdlMessage *msg;
+ char *ptr = NULL;
+ char *lasts = NULL;
+
+ msg = CtdlFetchMessage(msgnum, 1);
+ if (msg == NULL) {
+ return;
+ }
+
+ /* now add anyone we find into the hashlist */
+
+ /* skip past the headers */
+ ptr = strstr(msg->cm_fields['M'], "\n\n");
+ if (ptr != NULL) {
+ ptr += 2;
+ }
+ else {
+ ptr = strstr(msg->cm_fields['M'], "\n\r\n");
+ if (ptr != NULL) {
+ ptr += 3;
+ }
+ }
+
+ /* the remaining lines are addresses */
+ if (ptr != NULL) {
+ ptr = strtok_r(ptr, "\n", &lasts);
+ while (ptr != NULL) {
+ char *pch = strdup(ptr);
+ Put(mortuary, pch, strlen(pch), pch, NULL);
+ ptr = strtok_r(NULL, "\n", &lasts);
+ }
+ }
+
+ CtdlFreeMessage(msg);
+}
+
+
+
+/*
+ * Fetch the "mortuary" - a list of dead buddies which we keep around forever
+ * so we can remove them from any client's roster that still has them listed
+ */
+HashList *xmpp_fetch_mortuary(void) {
+ HashList *mortuary = NewHash(1, NULL);
+ if (!mortuary) {
+ CtdlLogPrintf(CTDL_ALERT, "NewHash() failed!\n");
+ return(NULL);
+ }
+
+ if (CtdlGetRoom(&CC->room, USERCONFIGROOM) != 0) {
+ /* no config room exists - no further processing is required. */
+ return(mortuary);
+ }
+ CtdlForEachMessage(MSGS_LAST, 1, NULL, XMPPMORTUARY, NULL,
+ xmpp_fetch_mortuary_backend, (void *)mortuary );
+
+ return(mortuary);
+}
+
+
+
+/*
+ * Fetch the "mortuary" - a list of dead buddies which we keep around forever
+ * so we can remove them from any client's roster that still has them listed
+ */
+void xmpp_store_mortuary(HashList *mortuary) {
+ HashPos *HashPos;
+ long len;
+ void *Value;
+ const char *Key;
+ StrBuf *themsg;
+
+ themsg = NewStrBuf();
+ StrBufPrintf(themsg, "Content-type: " XMPPMORTUARY "\n"
+ "Content-transfer-encoding: 7bit\n"
+ "\n"
+ );
+
+ HashPos = GetNewHashPos(mortuary, 0);
+ while (GetNextHashPos(mortuary, HashPos, &len, &Key, &Value) != 0)
+ {
+ StrBufAppendPrintf(themsg, "%s\n", (char *)Value);
+ }
+ DeleteHashPos(&HashPos);
+
+ /* Delete the old mortuary */
+ CtdlDeleteMessages(USERCONFIGROOM, NULL, 0, XMPPMORTUARY);
+
+ /* And save the new one to disk */
+ quickie_message("Citadel", NULL, NULL, USERCONFIGROOM, ChrPtr(themsg), 4, "XMPP Mortuary");
+ FreeStrBuf(&themsg);
+}
+
+
+
/*
* Upon logout we make an attempt to delete the whole roster, in order to
* try to keep "ghost" buddies from remaining in the client-side roster.
+ *
+ * Since the client is probably not still alive, also remember the current
+ * roster for next time so we can delete dead buddies then.
*/
void xmpp_massacre_roster(void)
{
struct CitContext *cptr;
int nContexts, i;
- int aide = (CC->user.axlevel >= AxAideU);
+ HashList *mortuary = xmpp_fetch_mortuary();
cptr = CtdlGetContextArray(&nContexts);
if (cptr) {
for (i=0; i<nContexts; i++) {
- if (cptr[i].logged_in) {
- if (
- (((cptr[i].cs_flags&CS_STEALTH)==0) || (aide))
- && (cptr[i].user.usernum != CC->user.usernum)
- ) {
- xmpp_destroy_buddy(cptr[i].cs_inet_email);
+ if (xmpp_is_visible(&cptr[i])) {
+ if (mortuary) {
+ char *buddy = strdup(cptr[i].cs_inet_email);
+ Put(mortuary, buddy, strlen(buddy), buddy, NULL);
}
}
}
free (cptr);
}
+
+ if (mortuary) {
+ xmpp_store_mortuary(mortuary);
+ DeleteHash(&mortuary);
+ }
}
+/*
+ * Stupidly, XMPP does not specify a way to tell the client to flush its client-side roster
+ * and prepare to receive a new one. So instead we remember every buddy we've ever told the
+ * client about, and push delete operations out at the beginning of a session.
+ *
+ * We omit any users who happen to be online right now, but we still keep them in the mortuary,
+ * which needs to be maintained as a list of every buddy the user has ever seen. We don't know
+ * when they're connecting from the same client and when they're connecting from a different client,
+ * so we have no guarantee of what is in the client side roster at connect time.
+ */
+void xmpp_delete_old_buddies_who_no_longer_exist_from_the_client_roster(void)
+{
+ long len;
+ void *Value;
+ const char *Key;
+ struct CitContext *cptr;
+ int nContexts, i;
+ int online_now = 0;
+ HashList *mortuary = xmpp_fetch_mortuary();
+ HashPos *HashPos = GetNewHashPos(mortuary, 0);
+
+ /* we need to omit anyone who is currently online */
+ cptr = CtdlGetContextArray(&nContexts);
+
+ /* go through the list of users in the mortuary... */
+ while (GetNextHashPos(mortuary, HashPos, &len, &Key, &Value) != 0)
+ {
+
+ online_now = 0;
+ if (cptr) for (i=0; i<nContexts; i++) {
+ if (xmpp_is_visible(&cptr[i])) {
+ if (!strcasecmp(cptr[i].cs_inet_email, (char *)Value)) {
+ online_now = 1;
+ }
+ }
+ }
+
+ if (!online_now) {
+ xmpp_destroy_buddy((char *)Value);
+ }
+
+ }
+ DeleteHashPos(&HashPos);
+ DeleteHash(&mortuary);
+ free(cptr);
+}
+
projects / citadel.git / blobdiff