+++ /dev/null
-/*
- * Handle <iq> <get> <query> type situations (namespace queries)
- *
- * Copyright (c) 2007-2015 by Art Cancro and citadel.org
- *
- * This program is open source software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 3.
- *
- * 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.
- */
-
-#include "sysdep.h"
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <pwd.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <time.h>
-#include <sys/wait.h>
-#include <string.h>
-#include <limits.h>
-#include <ctype.h>
-#include <expat.h>
-#include <libcitadel.h>
-#include "citadel.h"
-#include "server.h"
-#include "citserver.h"
-#include "support.h"
-#include "config.h"
-#include "internet_addressing.h"
-#include "ctdl_module.h"
-#include "serv_xmpp.h"
-
-
-/*
- * Output a single roster item, for roster queries or pushes
- */
-void xmpp_roster_item(struct CitContext *cptr) {
- char xmlbuf1[256];
- char xmlbuf2[256];
-
- cprintf("<item jid=\"%s\" name=\"%s\" subscription=\"both\">",
- xmlesc(xmlbuf1, cptr->cs_principal_id, sizeof xmlbuf1),
- xmlesc(xmlbuf2, cptr->user.fullname, sizeof xmlbuf2)
- );
- cprintf("<group>%s</group>", xmlesc(xmlbuf1, CtdlGetConfigStr("c_humannode"), sizeof xmlbuf1));
- cprintf("</item>");
-}
-
-
-/*
- * Return the results for a "jabber:iq:roster:query"
- *
- * Since we are not yet managing a roster, we simply return the entire wholist
- * (minus any entries for this user -- don't tell me about myself)
- *
- */
-void xmpp_iq_roster_query(void)
-{
- struct CitContext *cptr;
- int nContexts, i;
-
- syslog(LOG_DEBUG, "xmpp: roster push!");
- cprintf("<query xmlns=\"jabber:iq:roster\">");
- cptr = CtdlGetContextArray(&nContexts);
- if (cptr) {
- for (i=0; i<nContexts; i++) {
- if (xmpp_is_visible(&cptr[i], CC)) {
- syslog(LOG_DEBUG, "xmpp: rosterizing %s", cptr[i].user.fullname);
- xmpp_roster_item(&cptr[i]);
- }
- }
- free (cptr);
- }
- cprintf("</query>");
-}
-
-
-/*
- * Client is doing a namespace query. These are all handled differently.
- */
-void xmpp_query_namespace(char *iq_id, char *iq_from, char *iq_to, char *query_xmlns)
-{
- int supported_namespace = 0;
- int roster_query = 0;
- char xmlbuf[256];
- int reply_must_be_from_my_jid = 0;
-
- /* We need to know before we begin the response whether this is a supported namespace, so
- * unfortunately all supported namespaces need to be defined here *and* down below where
- * they are handled.
- */
- if (
- (!strcasecmp(query_xmlns, "jabber:iq:roster:query"))
- || (!strcasecmp(query_xmlns, "jabber:iq:auth:query"))
- || (!strcasecmp(query_xmlns, "http://jabber.org/protocol/disco#items:query"))
- || (!strcasecmp(query_xmlns, "http://jabber.org/protocol/disco#info:query"))
- ) {
- supported_namespace = 1;
- }
-
- syslog(LOG_DEBUG, "xmpp: xmpp_query_namespace(id=%s, from=%s, to=%s, xmlns=%s)", iq_id, iq_from, iq_to, query_xmlns);
-
- /*
- * Beginning of query result.
- */
-
- if (!strcasecmp(query_xmlns, "jabber:iq:roster:query")) {
- reply_must_be_from_my_jid = 1;
- }
-
- char dom[1024]; // client is expecting to see the reply
- if (reply_must_be_from_my_jid) { // coming "from" the user's jid
- safestrncpy(dom, XMPP->client_jid, sizeof(dom));
- char *slash = strchr(dom, '/');
- if (slash) {
- *slash = 0;
- }
- }
- else {
- safestrncpy(dom, XMPP->client_jid, sizeof(dom)); // client is expecting to see the reply
- if (IsEmptyStr(dom)) { // coming "from" the domain of the user's jid
- safestrncpy(dom, XMPP->server_name, sizeof(dom));
- }
- char *at = strrchr(dom, '@');
- if (at) {
- strcpy(dom, ++at);
- }
- char *slash = strchr(dom, '/');
- if (slash) {
- *slash = 0;
- }
- }
-
- if (supported_namespace) {
- cprintf("<iq type=\"result\" from=\"%s\" ", xmlesc(xmlbuf, dom, sizeof xmlbuf) );
- }
- else {
- cprintf("<iq type=\"error\" from=\"%s\" ", xmlesc(xmlbuf, dom, sizeof xmlbuf) );
- }
- if (!IsEmptyStr(iq_from)) {
- cprintf("to=\"%s\" ", xmlesc(xmlbuf, iq_from, sizeof xmlbuf));
- }
- cprintf("id=\"%s\">", xmlesc(xmlbuf, iq_id, sizeof xmlbuf));
-
- /*
- * Is this a query we know how to handle?
- */
-
- if (!strcasecmp(query_xmlns, "jabber:iq:roster:query")) {
- roster_query = 1;
- xmpp_iq_roster_query();
- }
-
- else if (!strcasecmp(query_xmlns, "jabber:iq:auth:query")) {
- cprintf("<query xmlns=\"jabber:iq:auth\">"
- "<username/><password/><resource/>"
- "</query>"
- );
- }
-
- // Extension "xep-0030" (http://xmpp.org/extensions/xep-0030.html) (return an empty set of results)
- else if (!strcasecmp(query_xmlns, "http://jabber.org/protocol/disco#items:query")) {
- cprintf("<query xmlns=\"%s\"/>", xmlesc(xmlbuf, query_xmlns, sizeof xmlbuf));
- }
-
- // Extension "xep-0030" (http://xmpp.org/extensions/xep-0030.html) (return an empty set of results)
- else if (!strcasecmp(query_xmlns, "http://jabber.org/protocol/disco#info:query")) {
- cprintf("<query xmlns=\"%s\"/>", xmlesc(xmlbuf, query_xmlns, sizeof xmlbuf));
- }
-
- /*
- * If we didn't hit any known query namespaces then we should deliver a
- * "service unavailable" error (see RFC3921 section 2.4 and 11.1.5.4)
- */
-
- else {
- syslog(LOG_DEBUG, "xmpp: unknown query namespace '%s' - returning <service-unavailable/>", query_xmlns);
- cprintf("<error code=\"503\" type=\"cancel\">"
- "<service-unavailable xmlns=\"urn:ietf:params:xml:ns:xmpp-stanzas\"/>"
- "</error>"
- );
- }
-
- cprintf("</iq>");
-
- /* If we told the client who is on the roster, we also need to tell the client
- * who is *not* on the roster. (It's down here because we can't do it in the same
- * stanza; this will be an unsolicited push.)
- */
- if (roster_query) {
- xmpp_delete_old_buddies_who_no_longer_exist_from_the_client_roster();
- }
-}
projects / citadel.git / blobdiff