示例#1
0
文件: sm.c 项目: norulesbozo/jabberd2
/** make a new action route */
static nad_t _sm_build_route(sess_t sess, bres_t res, const char *action, const char *target, const char *id) {
    nad_t nad;
    int ns, ans;

    nad = nad_new();

    ns = nad_add_namespace(nad, uri_COMPONENT, NULL);
    nad_append_elem(nad, ns, "route", 0);

    nad_append_attr(nad, -1, "to", sess->smcomp?sess->smcomp:((char *) res->jid->domain));
    nad_append_attr(nad, -1, "from", sess->c2s->id);

    ans = nad_add_namespace(nad, uri_SESSION, "sc");
    nad_append_elem(nad, ans, "session", 1);

    if(res->c2s_id[0] != '\0')
        nad_append_attr(nad, ans, "c2s", res->c2s_id);
    if(res->sm_id[0] != '\0')
        nad_append_attr(nad, ans, "sm", res->sm_id);

    nad_append_attr(nad, -1, "action", action);

    if(target != NULL) {
        nad_set_attr(nad, 0, -1, "target", target, NULL);
        nad_append_attr(nad, -1, "target", target);
    }
    if(id != NULL)
        nad_append_attr(nad, -1, "id", id);

    log_debug(ZONE, "built new route nad for %s action %s target %s id %s", jid_full(res->jid), action, target, id);

    return nad;
}
示例#2
0
/** send a new action route */
void sm_c2s_action(sess_t dest, const char *action, const char *target) {
    nad_t nad;
    int rns, sns;

    nad = nad_new();

    rns = nad_add_namespace(nad, uri_COMPONENT, NULL);
    nad_append_elem(nad, rns, "route", 0);

    nad_append_attr(nad, -1, "to", dest->c2s);
    nad_append_attr(nad, -1, "from", dest->user->sm->id);

    sns = nad_add_namespace(nad, uri_SESSION, "sc");
    nad_append_elem(nad, sns, "session", 1);

    if (dest->c2s_id[0] != '\0')
        nad_append_attr(nad, sns, "c2s", dest->c2s_id);
    if (dest->sm_id[0] != '\0')
        nad_append_attr(nad, sns, "sm", dest->sm_id);

    nad_append_attr(nad, -1, "action", action);
    if (target != NULL)
        nad_append_attr(nad, -1, "target", target);

    log_debug(ZONE,
              "routing nad to %s from %s c2s %s s2s %s action %s target %s",
              dest->c2s, dest->user->sm->id, dest->c2s_id, dest->sm_id,
              action, target);

    sx_nad_write(dest->user->sm->router, nad);
}
示例#3
0
文件: sasl_gsasl.c 项目: zipo/zipo
/** utility: generate a failure nad */
static nad_t _sx_sasl_failure(sx_t s, const char *err) {
    nad_t nad;
    int ns;

    nad = nad_new();
    ns = nad_add_namespace(nad, uri_SASL, NULL);

    nad_append_elem(nad, ns, "failure", 0);
    if(err != NULL)
        nad_append_elem(nad, ns, err, 1);

    return nad;
}
示例#4
0
文件: compress.c 项目: LEW21/jabberd2
static void _sx_compress_features(sx_t s, sx_plugin_t p, nad_t nad) {
    int ns;

    /* if the session is already compressed, or the app told us not to,
	 * or STARTTLS is required and stream is not encrypted yet, then we don't offer anything */
    if(s->compressed || !(s->flags & SX_COMPRESS_OFFER) || ((s->flags & SX_SSL_STARTTLS_REQUIRE) && s->ssf == 0))
        return;

    _sx_debug(ZONE, "offering compression");

    ns = nad_add_namespace(nad, uri_COMPRESS_FEATURE, NULL);
    nad_append_elem(nad, ns, "compression", 1);
    nad_append_elem(nad, ns, "method", 2);
    nad_append_cdata(nad, "zlib", 4, 3);
}
示例#5
0
文件: router.c 项目: 6wei/jabberd2
/** tell a component about all the others */
static void _router_advertise_reverse(const char *key, int keylen, void *val, void *arg) {
    component_t dest = (component_t) arg;
    routes_t routes = (routes_t) val;
    int el, ns, i;
    nad_t nad;

    assert((int) (routes->name != NULL));
    assert((int) (routes->comp != NULL));
    assert(routes->ncomp);

    /* don't tell me about myself */
    for(i = 0; i < routes->ncomp; i++)
        if(routes->comp[i] == dest)
            return;

    log_debug(ZONE, "informing component about %.*s", keylen, key);

    /* create a new packet */
    nad = nad_new();
    ns = nad_add_namespace(nad, uri_COMPONENT, NULL);
    el = nad_append_elem(nad, ns, "presence", 0);
    nad_set_attr(nad, el, -1, "from", key, keylen);

    sx_nad_write(dest->s, nad);
}
示例#6
0
文件: sasl_gsasl.c 项目: zipo/zipo
/** utility: generate an abort nad */
static nad_t _sx_sasl_abort(sx_t s) {
    nad_t nad;
    int ns;

    nad = nad_new();
    ns = nad_add_namespace(nad, uri_SASL, NULL);

    nad_append_elem(nad, ns, "abort", 0);

    return nad;
}
示例#7
0
文件: address.c 项目: 6wei/jabberd2
/** sx features callback */
static void _address_features(sx_t s, sx_plugin_t p, nad_t nad) {
    int ns;

    /* offer feature only when not authenticated yet */
    if(s->state >= state_OPEN)
        return;

    _sx_debug(ZONE, "adding address feature");

    ns = nad_add_namespace(nad, uri_ADDRESS_FEATURE, NULL);
    nad_append_elem(nad, ns, "address", 1);
    nad_append_cdata(nad, s->ip, strlen(s->ip), 2);
}
示例#8
0
文件: sasl_gsasl.c 项目: zipo/zipo
/** utility: generate a response nad */
static nad_t _sx_sasl_response(sx_t s, char *data, int dlen) {
    nad_t nad;
    int ns;

    nad = nad_new();
    ns = nad_add_namespace(nad, uri_SASL, NULL);

    nad_append_elem(nad, ns, "response", 0);
    if(data != NULL)
        nad_append_cdata(nad, data, dlen, 1);

    return nad;
}
示例#9
0
static void _config_startElement(void *arg, const char *name, const char **atts)
{
    struct build_data *bd = (struct build_data *) arg;
    int i = 0;

    nad_append_elem(bd->nad, -1, (char *) name, bd->depth);
    while(atts[i] != NULL)
    {
        nad_append_attr(bd->nad, -1, (char *) atts[i], (char *) atts[i + 1]);
        i += 2;
    }

    bd->depth++;
}
示例#10
0
文件: mod_amp.c 项目: zipo/zipo
pkt_t amp_build_response_pkt(pkt_t pkt, amp_rule_t rule) {
    if (!pkt || !rule) return NULL;
    
    if (rule->result == AMP_TRIGGERED) {
        int ns;
        pkt_t res = pkt_create(pkt->sm, "message", NULL, jid_full(pkt->from), jid_full(pkt->to));
        pkt_id(pkt, res);
    
        ns = nad_add_namespace(res->nad, uri_AMP, NULL);
        nad_append_elem(res->nad, ns, "amp", 2);
        nad_append_attr(res->nad, -1, "status", rule->action);
        nad_append_attr(res->nad, -1, "from", jid_full(pkt->from));
        nad_append_attr(res->nad, -1, "to",  jid_full(pkt->to));
    
        nad_append_elem(res->nad, ns, "rule", 3);
        nad_append_attr(res->nad, -1, "condition", rule->condition);
        nad_append_attr(res->nad, -1, "value", rule->value);
        nad_append_attr(res->nad, -1, "action", rule->action);
        
        return res;
    }
    
    return NULL;   
}
示例#11
0
/** register get handler */
static void _authreg_register_get(c2s_t c2s, sess_t sess, nad_t nad) {
    int attr, ns;
    char id[128];

    /* registrations can happen if reg is enabled and we can create users and set passwords */
    if(sess->active || !(sess->host->ar->set_password != NULL && sess->host->ar->create_user != NULL &&
        (sess->host->ar_register_enable || sess->host->ar_register_oob))) {

        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_NOT_ALLOWED), 0));
        return;
    }

    /* extract the id */
    attr = nad_find_attr(nad, 0, -1, "id", NULL);
    if(attr >= 0)
        snprintf(id, 128, "%.*s", NAD_AVAL_L(nad, attr), NAD_AVAL(nad, attr));

    nad_free(nad);

    /* build a result packet */
    nad = nad_new();

    ns = nad_add_namespace(nad, uri_CLIENT, NULL);

    nad_append_elem(nad, ns, "iq", 0);
    nad_append_attr(nad, -1, "type", "result");

    if(attr >= 0)
        nad_append_attr(nad, -1, "id", id);

    ns = nad_add_namespace(nad, uri_REGISTER, NULL);
    nad_append_elem(nad, ns, "query", 1);
    
    nad_append_elem(nad, ns, "instructions", 2);
    nad_append_cdata(nad, sess->host->ar_register_instructions, strlen(sess->host->ar_register_instructions), 3);

    if(sess->host->ar_register_enable) {
        nad_append_elem(nad, ns, "username", 2);
        nad_append_elem(nad, ns, "password", 2);
    }

    if(sess->host->ar_register_oob) {
        int ns = nad_add_namespace(nad, uri_OOB, NULL);
        nad_append_elem(nad, ns, "x", 2);
        nad_append_elem(nad, ns, "url", 3);
        nad_append_cdata(nad, sess->host->ar_register_oob, strlen(sess->host->ar_register_oob), 4);
    }

    /* give it back to the client */
    sx_nad_write(sess->s, nad);
}
示例#12
0
文件: router.c 项目: 6wei/jabberd2
/** domain advertisement */
static void _router_advertise(router_t r, const char *domain, component_t src, int unavail) {
    struct broadcast_st bc;
    int ns;

    log_debug(ZONE, "advertising %s to all routes (unavail=%d)", domain, unavail);

    bc.r = r;
    bc.src = src;

    /* create a new packet */
    bc.nad = nad_new();
    ns = nad_add_namespace(bc.nad, uri_COMPONENT, NULL);
    nad_append_elem(bc.nad, ns, "presence", 0);
    nad_append_attr(bc.nad, -1, "from", domain);
    if(unavail)
        nad_append_attr(bc.nad, -1, "type", "unavailable");

    xhash_walk(r->routes, _router_broadcast, (void *) &bc);

    nad_free(bc.nad);
}
示例#13
0
static mod_ret_t _pep_out_sess(mod_instance_t mi, sess_t sess, pkt_t pkt) {
    /* add pep identity to disco results from bare JID */
    if(!(pkt->type & pkt_IQ) || pkt->ns != ns_DISCO_INFO || (pkt->from != NULL && strcmp(jid_user(sess->jid), jid_full(pkt->from))))
        return mod_PASS;

    /* add PEP identity */
    nad_append_elem(pkt->nad, -1, "identity", 3);
    nad_append_attr(pkt->nad, -1, "category", "pubsub");
    nad_append_attr(pkt->nad, -1, "type", "pep");

	nad_append_elem(pkt->nad, -1, "feature", 3);
	nad_append_attr(pkt->nad, -1, "var", uri_PUBSUB "#access-presence");
	nad_append_elem(pkt->nad, -1, "feature", 3);
	nad_append_attr(pkt->nad, -1, "var", uri_PUBSUB "#auto-create");
	nad_append_elem(pkt->nad, -1, "feature", 3);
	nad_append_attr(pkt->nad, -1, "var", uri_PUBSUB "#auto-subscribe");
	nad_append_elem(pkt->nad, -1, "feature", 3);
	nad_append_attr(pkt->nad, -1, "var", uri_PUBSUB "#filtered-notifications");
	nad_append_elem(pkt->nad, -1, "feature", 3);
	nad_append_attr(pkt->nad, -1, "var", uri_PUBSUB "#publish");

    return mod_PASS;
}
示例#14
0
/** our master callback */
int sm_sx_callback(sx_t s, sx_event_t e, void *data, void *arg) {
    sm_t sm = (sm_t) arg;
    sx_buf_t buf = (sx_buf_t) data;
    sx_error_t *sxe;
    nad_t nad;
    pkt_t pkt;
    int len, ns, elem, attr;
    char *domain;

    switch(e) {
        case event_WANT_READ:
            log_debug(ZONE, "want read");
            mio_read(sm->mio, sm->fd);
            break;

        case event_WANT_WRITE:
            log_debug(ZONE, "want write");
            mio_write(sm->mio, sm->fd);
            break;

        case event_READ:
            log_debug(ZONE, "reading from %d", sm->fd->fd);

            /* do the read */
            len = recv(sm->fd->fd, buf->data, buf->len, 0);

            if (len < 0) {
                if (MIO_WOULDBLOCK) {
                    buf->len = 0;
                    return 0;
                }

                log_write(sm->log, LOG_NOTICE, "[%d] [router] read error: %s (%d)", sm->fd->fd, MIO_STRERROR(MIO_ERROR), MIO_ERROR);

                sx_kill(s);
                
                return -1;
            }

            else if (len == 0) {
                /* they went away */
                sx_kill(s);

                return -1;
            }

            log_debug(ZONE, "read %d bytes", len);

            buf->len = len;

            return len;

        case event_WRITE:
            log_debug(ZONE, "writing to %d", sm->fd->fd);

            len = send(sm->fd->fd, buf->data, buf->len, 0);
            if (len >= 0) {
                log_debug(ZONE, "%d bytes written", len);
                return len;
            }

            if (MIO_WOULDBLOCK)
                return 0;

            log_write(sm->log, LOG_NOTICE, "[%d] [router] write error: %s (%d)", sm->fd->fd, MIO_STRERROR(MIO_ERROR), MIO_ERROR);

            sx_kill(s);

            return -1;

        case event_ERROR:
            sxe = (sx_error_t *) data;
            log_write(sm->log, LOG_NOTICE, "error from router: %s (%s)", sxe->generic, sxe->specific);

            if(sxe->code == SX_ERR_AUTH)
                sx_close(s);

            break;

        case event_STREAM:
            break;

        case event_OPEN:
            log_write(sm->log, LOG_NOTICE, "connection to router established");

            /* set connection attempts counter */
            sm->retry_left = sm->retry_lost;

            nad = nad_new();
            ns = nad_add_namespace(nad, uri_COMPONENT, NULL);
            nad_append_elem(nad, ns, "bind", 0);
            nad_append_attr(nad, -1, "name", sm->id);
            log_debug(ZONE, "requesting component bind for '%s'", sm->id);
            sx_nad_write(sm->router, nad);
            
            if(xhash_iter_first(sm->hosts))
            do {
                xhash_iter_get(sm->hosts, (void *) &domain, &len, NULL);

                /* skip already requested SM id */
                if (strlen(sm->id) == len && strncmp(sm->id, domain, len) == 0)
                    continue;

                nad = nad_new();
                ns = nad_add_namespace(nad, uri_COMPONENT, NULL);
                elem = nad_append_elem(nad, ns, "bind", 0);
                nad_set_attr(nad, elem, -1, "name", domain, len);
                nad_append_attr(nad, -1, "multi", "to");
                log_debug(ZONE, "requesting domain bind for '%.*s'", len, domain);
                sx_nad_write(sm->router, nad);
            } while(xhash_iter_next(sm->hosts));
            
            sm_update_host = 1;
            
            break;

        case event_PACKET:
            nad = (nad_t) data;

            /* drop unqualified packets */
            if (NAD_ENS(nad, 0) < 0) {
                nad_free(nad);
                return 0;
            }
            /* watch for the features packet */
            if (s->state == state_STREAM) {
                if (NAD_NURI_L(nad, NAD_ENS(nad, 0)) != strlen(uri_STREAMS)
                    || strncmp(uri_STREAMS, NAD_NURI(nad, NAD_ENS(nad, 0)), strlen(uri_STREAMS)) != 0
                    || NAD_ENAME_L(nad, 0) != 8 || strncmp("features", NAD_ENAME(nad, 0), 8) != 0) {
                    log_debug(ZONE, "got a non-features packet on an unauth'd stream, dropping");
                    nad_free(nad);
                    return 0;
                }

#ifdef HAVE_SSL
                /* starttls if we can */
                if (sm->sx_ssl != NULL && s->ssf == 0) {
                    ns = nad_find_scoped_namespace(nad, uri_TLS, NULL);
                    if (ns >= 0) {
                        elem = nad_find_elem(nad, 0, ns, "starttls", 1);
                        if (elem >= 0) {
                            if (sx_ssl_client_starttls(sm->sx_ssl, s, NULL, NULL) == 0) {
                                nad_free(nad);
                                return 0;
                            }
                            log_write(sm->log, LOG_NOTICE, "unable to establish encrypted session with router");
                        }
                    }
                }
#endif

                /* !!! pull the list of mechanisms, and choose the best one.
                 *     if there isn't an appropriate one, error and bail */

                /* authenticate */
                sx_sasl_auth(sm->sx_sasl, s, "jabberd-router", "DIGEST-MD5", sm->router_user, sm->router_pass);

                nad_free(nad);
                return 0;
            }

            /* watch for the bind response */
            if (s->state == state_OPEN && !sm->online) {
                if (NAD_NURI_L(nad, NAD_ENS(nad, 0)) != strlen(uri_COMPONENT)
                    || strncmp(uri_COMPONENT, NAD_NURI(nad, NAD_ENS(nad, 0)), strlen(uri_COMPONENT)) != 0
                    || NAD_ENAME_L(nad, 0) != 4 || strncmp("bind", NAD_ENAME(nad, 0), 4)) {
                    log_debug(ZONE, "got a packet from router, but we're not online, dropping");
                    nad_free(nad);
                    return 0;
                }

                /* catch errors */
                attr = nad_find_attr(nad, 0, -1, "error", NULL);
                if(attr >= 0) {
                    log_write(sm->log, LOG_NOTICE, "router refused bind request (%.*s)", NAD_AVAL_L(nad, attr), NAD_AVAL(nad, attr));
                    exit(1);
                }

                log_debug(ZONE, "coming online");

                /* we're online */
                sm->online = sm->started = 1;
                log_write(sm->log, LOG_NOTICE, "%s ready for sessions", sm->id);

                nad_free(nad);
                return 0;
            }

            log_debug(ZONE, "got a packet");

            pkt = pkt_new(sm, nad);
            if (pkt == NULL) {
                log_debug(ZONE, "invalid packet, dropping");
                return 0;
            }

            /* go */
            dispatch(sm, pkt);

            return 0;

        case event_CLOSED:
            mio_close(sm->mio, sm->fd);
            sm->fd = NULL;
            return -1;
    }

    return 0;
}
示例#15
0
static nad_t _pbx_presence_nad(int available, char *cmd)
{
	nad_t nad;
	int ns;
	char *show = NULL;

	nad = nad_new();
	ns = nad_add_namespace(nad, uri_CLIENT, NULL);
	nad_append_elem(nad, ns, "presence", 0);

	if(!available) {
		nad_append_attr(nad, -1, "type", "unavailable");
	}
	else {
		char *cont;
		long int priority;
		char prioritystr[5]; // -128 to +127 + \0

		priority = strtol(cmd, &cont, 10);
		log_debug(ZONE, "Read %ld priority", priority);
		if(cmd == cont) priority = -1; // use -1 priority if not given
		if(priority < -128) priority = -128;
		if(priority > 127) priority = 127;
		nad_append_elem(nad, -1, "priority", 1);
		snprintf(prioritystr, 5, "%ld", priority);
		nad_append_cdata(nad, prioritystr, strlen(prioritystr), 2);
		if(cmd != cont) {
			cmd = cont;
			while(*cmd == ' ') { cmd++; }
		}


		if(!strncmp("CHAT", cmd, 4)) {
			cmd += 4;
			show = "chat";
		}
		if(!strncmp("ONLINE", cmd, 6)) {
			cmd += 6;
		}
		if(!strncmp("DND", cmd, 3)) {
			cmd += 3;
			show = "dnd";
		}
		if(!strncmp("AWAY", cmd, 4)) {
			cmd += 4;
			show = "away";
		}
		if(!strncmp("XA", cmd, 2)) {
			cmd += 2;
			show = "xa";
		}
		if(show) {
			nad_append_elem(nad, -1, "show", 1);
			nad_append_cdata(nad, show, strlen(show), 2);
		}
	}

	while(*cmd == ' ') { cmd++; }

	if(*cmd != '\0' && *cmd != '\n') {
		int len = strlen(cmd);
		nad_append_elem(nad, -1, "status", 1);
		nad_append_cdata(nad, cmd, len - (cmd[len-1] == '\n' ? 1 : 0), 2);
	}

	return nad;
}
示例#16
0
文件: in.c 项目: zipo/zipo
/** auth requests */
static void _in_result(conn_t in, nad_t nad) {
    int attr, ns;
    jid_t from, to;
    char *rkey;
    nad_t verify;
    pkt_t pkt;
    time_t now;

    attr = nad_find_attr(nad, 0, -1, "from", NULL);
    if(attr < 0 || (from = jid_new(NAD_AVAL(nad, attr), NAD_AVAL_L(nad, attr))) == NULL) {
        log_debug(ZONE, "missing or invalid from on db result packet");
        nad_free(nad);
        return;
    }

    attr = nad_find_attr(nad, 0, -1, "to", NULL);
    if(attr < 0 || (to = jid_new(NAD_AVAL(nad, attr), NAD_AVAL_L(nad, attr))) == NULL) {
        log_debug(ZONE, "missing or invalid to on db result packet");
        jid_free(from);
        nad_free(nad);
        return;
    }

    rkey = s2s_route_key(NULL, to->domain, from->domain);

    log_write(in->s2s->log, LOG_NOTICE, "[%d] [%s, port=%d] received dialback auth request for route '%s'", in->fd->fd, in->ip, in->port, rkey);

    /* get current state */
    if((conn_state_t) xhash_get(in->states, rkey) == conn_VALID) {
        log_write(in->s2s->log, LOG_NOTICE, "[%d] [%s, port=%d] route '%s' is already valid: sending valid", in->fd->fd, in->ip, in->port, rkey);

        /* its already valid, just reply right now */
        stanza_tofrom(nad, 0);
        nad_set_attr(nad, 0, -1, "type", "valid", 5);
        nad->elems[0].icdata = nad->elems[0].itail = -1;
        nad->elems[0].lcdata = nad->elems[0].ltail = 0;

        sx_nad_write(in->s, nad);

        free(rkey);

        jid_free(from);
        jid_free(to);

        return;
    }

    /* not valid, so we need to verify */

    /* need the key */
    if(NAD_CDATA_L(nad, 0) <= 0) {
        log_write(in->s2s->log, LOG_NOTICE, "[%d] [%s, port=%d] no dialback key given with db result packet", in->fd->fd, in->ip, in->port, rkey);
        free(rkey);
        nad_free(nad);
        jid_free(from);
        jid_free(to);
        return;
    }

    log_debug(ZONE, "requesting verification for route %s", rkey);

    /* set the route status to INPROGRESS and set timestamp */
    xhash_put(in->states, pstrdup(xhash_pool(in->states), rkey), (void *) conn_INPROGRESS);

    /* record the time that we set conn_INPROGRESS state */
    now = time(NULL);
    xhash_put(in->states_time, pstrdup(xhash_pool(in->states_time), rkey), (void *) now);

    free(rkey);

    /* new packet */
    verify = nad_new();
    ns = nad_add_namespace(verify, uri_DIALBACK, "db");

    nad_append_elem(verify, ns, "verify", 0);
    nad_append_attr(verify, -1, "to", from->domain);
    nad_append_attr(verify, -1, "from", to->domain);
    nad_append_attr(verify, -1, "id", in->s->id);
    nad_append_cdata(verify, NAD_CDATA(nad, 0), NAD_CDATA_L(nad, 0), 1);

    /* new packet */
    pkt = (pkt_t) calloc(1, sizeof(struct pkt_st));

    pkt->nad = verify;

    pkt->to = from;
    pkt->from = to;

    pkt->db = 1;

    /* its away */
    out_packet(in->s2s, pkt);

    nad_free(nad);
}
示例#17
0
/** auth get handler */
static void _authreg_auth_get(c2s_t c2s, sess_t sess, nad_t nad) {
    int ns, elem, attr;
    char username[1024], id[128];
    int ar_mechs;

    /* can't auth if they're active */
    if(sess->active) {
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_NOT_ALLOWED), 0));
        return;
    }

    /* sort out the username */
    ns = nad_find_scoped_namespace(nad, uri_AUTH, NULL);
    elem = nad_find_elem(nad, 1, ns, "username", 1);
    if(elem < 0)
    {
        log_debug(ZONE, "auth get with no username, bouncing it");

        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_BAD_REQUEST), 0));

        return;
    }

    snprintf(username, 1024, "%.*s", NAD_CDATA_L(nad, elem), NAD_CDATA(nad, elem));
    if(stringprep_xmpp_nodeprep(username, 1024) != 0) {
        log_debug(ZONE, "auth get username failed nodeprep, bouncing it");
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_JID_MALFORMED), 0));
        return;
    }

    ar_mechs = c2s->ar_mechanisms;
    if (sess->s->ssf>0) 
        ar_mechs = ar_mechs | c2s->ar_ssl_mechanisms;
        
    /* no point going on if we have no mechanisms */
    if(!(ar_mechs & (AR_MECH_TRAD_PLAIN | AR_MECH_TRAD_DIGEST))) {
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_FORBIDDEN), 0));
        return;
    }
    
    /* do we have the user? */
    if((c2s->ar->user_exists)(c2s->ar, username, sess->host->realm) == 0) {
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_OLD_UNAUTH), 0));
        return;
    }

    /* extract the id */
    attr = nad_find_attr(nad, 0, -1, "id", NULL);
    if(attr >= 0)
        snprintf(id, 128, "%.*s", NAD_AVAL_L(nad, attr), NAD_AVAL(nad, attr));

    nad_free(nad);

    /* build a result packet */
    nad = nad_new();

    ns = nad_add_namespace(nad, uri_CLIENT, NULL);

    nad_append_elem(nad, ns, "iq", 0);
    nad_append_attr(nad, -1, "type", "result");

    if(attr >= 0)
        nad_append_attr(nad, -1, "id", id);

    ns = nad_add_namespace(nad, uri_AUTH, NULL);
    nad_append_elem(nad, ns, "query", 1);
    
    nad_append_elem(nad, ns, "username", 2);
    nad_append_cdata(nad, username, strlen(username), 3);

    nad_append_elem(nad, ns, "resource", 2);

    /* fill out the packet with available auth mechanisms */
    if(ar_mechs & AR_MECH_TRAD_PLAIN && (c2s->ar->get_password != NULL || c2s->ar->check_password != NULL))
        nad_append_elem(nad, ns, "password", 2);

    if(ar_mechs & AR_MECH_TRAD_DIGEST && c2s->ar->get_password != NULL)
        nad_append_elem(nad, ns, "digest", 2);

    /* give it back to the client */
    sx_nad_write(sess->s, nad);

    return;
}
示例#18
0
/** Send archiving preferences */
void send_arch_prefs(mod_instance_t mi, sess_t sess, pkt_t pkt) {
    module_t mod = mi->mod;
    int prefs;
    int archive=default_mode;
    int section;
    int check;
    char buff[2060]; // 2048 is jid_user maximum length
    char* ret_str=buff;
    os_t os = NULL;
    os_object_t o = NULL;
    pkt_t reply;

    // Create a new packet
    log_debug(ZONE, "Construction of reply with current settings");
    reply = pkt_create(sess->user->sm, "iq", "result", NULL, NULL);

    // Defaults
    log_debug(ZONE, "Getting defaults");
    prefs = nad_append_elem(reply->nad, nad_add_namespace(reply->nad, archive_uri, NULL), "prefs", 2);

    // Load defaults
    snprintf(buff, 2060, "(jid=%s)", jid_user(sess->jid));
    if((storage_get(sess->user->sm->st, tbl_name "_settings", jid_user(sess->jid), buff, &os) == st_SUCCESS) &&
        (os_iter_first(os)) && ((o=os_iter_object(os))!=NULL))
            os_object_get_int(os, o, "setting", &archive);

    // Set defaults
    switch(archive) {
        case A_ALWAYS:
            nad_set_attr(reply->nad, prefs, -1,"default", "always", 6);
            break;
        case A_ROSTER:
            nad_set_attr(reply->nad, prefs, -1,"default", "roster", 6);
            break;
        default:
            nad_set_attr(reply->nad, prefs, -1,"default", "never", 5);
            break;
    }


    // Cleanup
    if(o != NULL) {
        os_object_free(o);
        o=NULL;
    }
    if(os != NULL) {
        os_free(os);
        os=NULL;
    }

    // Always archiving
    log_debug(ZONE, "Getting what to archive always");
    section = nad_append_elem(reply->nad, -1, "always", 3);
    if(storage_get(sess->user->sm->st, tbl_name "_settings", jid_user(sess->jid), "(setting=1)", &os) == st_SUCCESS)
    if(os_iter_first(os))
        do {
            o = os_iter_object(os);
            if((o != NULL) && (os_object_get_str(os, o, "jid", &ret_str)) && (ret_str != NULL)) {
                nad_append_elem(reply->nad, -1, "jid", 4);
                nad_append_cdata(reply->nad, ret_str, strlen(ret_str), 5);
            }
        } while(os_iter_next(os));

    // Cleanup
    if(o != NULL) {
        os_object_free(o);
        o=NULL;
    }
    if(os != NULL) {
        os_free(os);
        os=NULL;
    }

    // Never archiving
    log_debug(ZONE, "Getting what to never archive");
    section = nad_append_elem(reply->nad, -1, "never", 3);
    if(storage_get(sess->user->sm->st, tbl_name "_settings", jid_user(sess->jid), "(setting=0)", &os) == st_SUCCESS)
    if(os_iter_first(os))
        do {
            o = os_iter_object(os);
            if((o != NULL) && (os_object_get_str(os, o, "jid", &ret_str)) && (ret_str != NULL)) {
                nad_append_elem(reply->nad, -1, "jid", 4);
                nad_append_cdata(reply->nad, ret_str, strlen(ret_str), 5);
            }
        } while(os_iter_next(os));

    // Cleanup
    if(o != NULL) {
        os_object_free(o);
        o=NULL;
    }
    if(os != NULL) {
        os_free(os);
        os=NULL;
    }

    // Send packet
    pkt_id(pkt, reply);
    pkt_sess(reply, sess);
    pkt_free(pkt);
}
示例#19
0
/** auth set handler */
static void _authreg_auth_set(c2s_t c2s, sess_t sess, nad_t nad) {
    int ns, elem, attr, authd = 0;
    char username[1024], resource[1024], str[1024], hash[280];
    int ar_mechs;

    /* can't auth if they're active */
    if(sess->active) {
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_NOT_ALLOWED), 0));
        return;
    }

    ns = nad_find_scoped_namespace(nad, uri_AUTH, NULL);

    /* sort out the username */
    elem = nad_find_elem(nad, 1, ns, "username", 1);
    if(elem < 0)
    {
        log_debug(ZONE, "auth set with no username, bouncing it");

        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_BAD_REQUEST), 0));

        return;
    }

    snprintf(username, 1024, "%.*s", NAD_CDATA_L(nad, elem), NAD_CDATA(nad, elem));
    if(stringprep_xmpp_nodeprep(username, 1024) != 0) {
        log_debug(ZONE, "auth set username failed nodeprep, bouncing it");
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_JID_MALFORMED), 0));
        return;
    }

    /* make sure we have the resource */
    elem = nad_find_elem(nad, 1, ns, "resource", 1);
    if(elem < 0)
    {
        log_debug(ZONE, "auth set with no resource, bouncing it");

        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_BAD_REQUEST), 0));

        return;
    }

    snprintf(resource, 1024, "%.*s", NAD_CDATA_L(nad, elem), NAD_CDATA(nad, elem));
    if(stringprep_xmpp_resourceprep(resource, 1024) != 0) {
        log_debug(ZONE, "auth set resource failed resourceprep, bouncing it");
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_JID_MALFORMED), 0));
        return;
    }

    ar_mechs = c2s->ar_mechanisms;
    if (sess->s->ssf > 0)
        ar_mechs = ar_mechs | c2s->ar_ssl_mechanisms;
    
    /* no point going on if we have no mechanisms */
    if(!(ar_mechs & (AR_MECH_TRAD_PLAIN | AR_MECH_TRAD_DIGEST))) {
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_FORBIDDEN), 0));
        return;
    }
    
    /* do we have the user? */
    if((c2s->ar->user_exists)(c2s->ar, username, sess->host->realm) == 0) {
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_OLD_UNAUTH), 0));
        return;
    }
    
    /* digest auth */
    if(!authd && ar_mechs & AR_MECH_TRAD_DIGEST && c2s->ar->get_password != NULL)
    {
        elem = nad_find_elem(nad, 1, ns, "digest", 1);
        if(elem >= 0)
        {
            if((c2s->ar->get_password)(c2s->ar, username, sess->host->realm, str) == 0)
            {
                snprintf(hash, 280, "%s%s", sess->s->id, str);
                shahash_r(hash, hash);

                if(strlen(hash) == NAD_CDATA_L(nad, elem) && strncmp(hash, NAD_CDATA(nad, elem), NAD_CDATA_L(nad, elem)) == 0)
                {
                    log_debug(ZONE, "digest auth succeeded");
                    authd = 1;
                    _authreg_auth_log(c2s, sess, "traditional.digest", username, resource, TRUE);
                }
            }
        }
    }

    /* plaintext auth (compare) */
    if(!authd && ar_mechs & AR_MECH_TRAD_PLAIN && c2s->ar->get_password != NULL)
    {
        elem = nad_find_elem(nad, 1, ns, "password", 1);
        if(elem >= 0)
        {
            if((c2s->ar->get_password)(c2s->ar, username, sess->host->realm, str) == 0 && strlen(str) == NAD_CDATA_L(nad, elem) && strncmp(str, NAD_CDATA(nad, elem), NAD_CDATA_L(nad, elem)) == 0)
            {
                log_debug(ZONE, "plaintext auth (compare) succeeded");
                authd = 1;
                _authreg_auth_log(c2s, sess, "traditional.plain(compare)", username, resource, TRUE);
            }
        }
    }

    /* plaintext auth (check) */
    if(!authd && ar_mechs & AR_MECH_TRAD_PLAIN && c2s->ar->check_password != NULL)
    {
        elem = nad_find_elem(nad, 1, ns, "password", 1);
        if(elem >= 0)
        {
            snprintf(str, 1024, "%.*s", NAD_CDATA_L(nad, elem), NAD_CDATA(nad, elem));
            if((c2s->ar->check_password)(c2s->ar, username, sess->host->realm, str) == 0)
            {
                log_debug(ZONE, "plaintext auth (check) succeded");
                authd = 1;
                _authreg_auth_log(c2s, sess, "traditional.plain", username, resource, TRUE);
            }
        }
    }

    /* now, are they authenticated? */
    if(authd)
    {
        /* create new bound jid holder */
        if(sess->resources == NULL) {
            sess->resources = (bres_t) calloc(1, sizeof(struct bres_st));
        }

        /* our local id */
        sprintf(sess->resources->c2s_id, "%d", sess->s->tag);

        /* the full user jid for this session */
        sess->resources->jid = jid_new(sess->s->req_to, -1);
        jid_reset_components(sess->resources->jid, username, sess->resources->jid->domain, resource);

        log_write(sess->c2s->log, LOG_NOTICE, "[%d] requesting session: jid=%s", sess->s->tag, jid_full(sess->resources->jid));

        /* build a result packet, we'll send this back to the client after we have a session for them */
        sess->result = nad_new();

        ns = nad_add_namespace(sess->result, uri_CLIENT, NULL);

        nad_append_elem(sess->result, ns, "iq", 0);
        nad_set_attr(sess->result, 0, -1, "type", "result", 6);

        attr = nad_find_attr(nad, 0, -1, "id", NULL);
        if(attr >= 0)
            nad_set_attr(sess->result, 0, -1, "id", NAD_AVAL(nad, attr), NAD_AVAL_L(nad, attr));

        /* start a session with the sm */
        sm_start(sess, sess->resources);

        /* finished with the nad */
        nad_free(nad);

        return;
    }

    _authreg_auth_log(c2s, sess, "traditional", username, resource, FALSE);

    /* auth failed, so error */
    sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_OLD_UNAUTH), 0));

    return;
}
示例#20
0
文件: ack.c 项目: 6wei/jabberd2
/** sx features callback */
static void _sx_ack_features(sx_t s, sx_plugin_t p, nad_t nad) {
    /* offer feature only when authenticated and not enabled yet */
    if(s->state == state_OPEN && s->plugin_data[p->index] == NULL)
        nad_append_elem(nad, -1, "ack:ack", 1);
}
示例#21
0
static void _nad_parse_element_start(void *arg, const char *name, const char **atts) {
    struct build_data *bd = (struct build_data *) arg;
    char buf[1024];
    char *uri, *elem, *prefix;
    const char **attr;
    int el, ns;

    /* make a copy */
    strncpy(buf, name, 1024);
    buf[1023] = '\0';

    /* expat gives us:
         prefixed namespaced elem: uri|elem|prefix
          default namespaced elem: uri|elem
               un-namespaced elem: elem
     */

    /* extract all the bits */
    uri = buf;
    elem = strchr(uri, '|');
    if(elem != NULL) {
        *elem = '\0';
        elem++;
        prefix = strchr(elem, '|');
        if(prefix != NULL) {
            *prefix = '\0';
            prefix++;
        }
        ns = nad_add_namespace(bd->nad, uri, prefix);
    } else {
        /* un-namespaced, just take it as-is */
        uri = NULL;
        elem = buf;
        prefix = NULL;
        ns = -1;
    }

    /* add it */
    el = nad_append_elem(bd->nad, ns, elem, bd->depth);

    /* now the attributes, one at a time */
    attr = atts;
    while(attr[0] != NULL) {

        /* make a copy */
        strncpy(buf, attr[0], 1024);
        buf[1023] = '\0';

        /* extract all the bits */
        uri = buf;
        elem = strchr(uri, '|');
        if(elem != NULL) {
            *elem = '\0';
            elem++;
            prefix = strchr(elem, '|');
            if(prefix != NULL) {
                *prefix = '\0';
                prefix++;
            }
            ns = nad_append_namespace(bd->nad, el, uri, prefix);
        } else {
            /* un-namespaced, just take it as-is */
            uri = NULL;
            elem = buf;
            prefix = NULL;
            ns = -1;
        }

        /* add it */
        nad_append_attr(bd->nad, ns, elem, (char *) attr[1]);

        attr += 2;
    }

    bd->depth++;
}
示例#22
0
/** register set handler */
static void _authreg_register_set(c2s_t c2s, sess_t sess, nad_t nad)
{
    int ns = 0, elem, attr;
    char username[1024], password[1024];

    /* if we're not configured for registration (or pw changes), or we can't set passwords, fail outright */
    if(!(sess->host->ar_register_enable || sess->host->ar_register_password) || c2s->ar->set_password == NULL) {
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_NOT_ALLOWED), 0));
        return;
    }

    ns = nad_find_scoped_namespace(nad, uri_REGISTER, NULL);

    /* removals */
    if(sess->active && nad_find_elem(nad, 1, ns, "remove", 1) >= 0) {
        /* only if full reg is enabled */
        if(!sess->host->ar_register_enable) {
            sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_NOT_ALLOWED), 0));
            return;
        }

        log_debug(ZONE, "user remove requested");

        /* make sure we can delete them */
        if(c2s->ar->delete_user == NULL) {
            sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_NOT_ALLOWED), 0));
            return;
        }

        /* otherwise, delete them */
        if((c2s->ar->delete_user)(c2s->ar, sess->resources->jid->node, sess->host->realm) != 0) {
            log_debug(ZONE, "user delete failed");
            sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_INTERNAL_SERVER_ERROR), 0));
            return;
        }

        log_write(c2s->log, LOG_NOTICE, "[%d] deleted user: user=%s; realm=%s", sess->s->tag, sess->resources->jid->node, sess->host->realm);

        log_write(c2s->log, LOG_NOTICE, "[%d] registration remove succeeded, requesting user deletion: jid=%s", sess->s->tag, jid_user(sess->resources->jid));

        /* make a result nad */
        sess->result = nad_new();

        ns = nad_add_namespace(sess->result, uri_CLIENT, NULL);

        nad_append_elem(sess->result, ns, "iq", 0);
        nad_set_attr(sess->result, 0, -1, "type", "result", 6);

        /* extract the id */
        attr = nad_find_attr(nad, 0, -1, "id", NULL);
        if(attr >= 0)
            nad_set_attr(sess->result, 0, -1, "id", NAD_AVAL(nad, attr), NAD_AVAL_L(nad, attr));

        nad_free(nad);

        sx_nad_write(sess->s, sess->result);
        sess->result = NULL;

        /* get the sm to delete them (it will force their sessions to end) */
        sm_delete(sess, sess->resources);

        return;
    }

    /* username is required */
    elem = nad_find_elem(nad, 1, ns, "username", 1);
    if(elem < 0)
    {
        log_debug(ZONE, "register set with no username, bouncing it");
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_BAD_REQUEST), 0));
        return;
    }

    snprintf(username, 1024, "%.*s", NAD_CDATA_L(nad, elem), NAD_CDATA(nad, elem));
    if(stringprep_xmpp_nodeprep(username, 1024) != 0) {
        log_debug(ZONE, "register set username failed nodeprep, bouncing it");
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_JID_MALFORMED), 0));
        return;
    }

    elem = nad_find_elem(nad, 1, ns, "password", 1);
    if(elem < 0)
    {
        log_debug(ZONE, "register set with no password, bouncing it");
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_BAD_REQUEST), 0));
        return;
    }

    /* if they're already auth'd, its a password change */
    if(sess->active)
    {
        /* confirm that the username matches their auth id */
        if(strcmp(username, sess->resources->jid->node) != 0)
        {
            log_debug(ZONE, "%s is trying to change password for %s, bouncing it", jid_full(sess->resources->jid), username);
            sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_OLD_UNAUTH), 0));
            return;
        }
    }

    /* can't go on if we're not doing full reg */
    else if(!sess->host->ar_register_enable) {
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_NOT_ALLOWED), 0));
        return;
    }

    /* if they exist, bounce */
    else if((c2s->ar->user_exists)(c2s->ar, username, sess->host->realm))
    {
        log_debug(ZONE, "attempt to register %s, but they already exist", username);
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_CONFLICT), 0));
        return;
    }

    /* make sure we can create them */
    else if(c2s->ar->create_user == NULL)
    {
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_NOT_ALLOWED), 0));
        return;
    }

    /* otherwise, create them */
    else if((c2s->ar->create_user)(c2s->ar, username, sess->host->realm) != 0)
    {
        log_debug(ZONE, "user create failed");
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_INTERNAL_SERVER_ERROR), 0));
        return;
    }

    else
        log_write(c2s->log, LOG_NOTICE, "[%d] created user: user=%s; realm=%s", sess->s->tag, username, sess->host->realm);

    /* extract the password */
    snprintf(password, 257, "%.*s", NAD_CDATA_L(nad, elem), NAD_CDATA(nad, elem));

    /* change it */
    if((c2s->ar->set_password)(c2s->ar, username, sess->host->realm, password) != 0)
    {
        log_debug(ZONE, "password store failed");
        sx_nad_write(sess->s, stanza_tofrom(stanza_error(nad, 0, stanza_err_INTERNAL_SERVER_ERROR), 0));
        return;
    }

    log_debug(ZONE, "updated auth creds for %s", username);

    /* make a result nad */
    sess->result = nad_new();

    ns = nad_add_namespace(sess->result, uri_CLIENT, NULL);

    nad_append_elem(sess->result, ns, "iq", 0);
    nad_set_attr(sess->result, 0, -1, "type", "result", 6);

    /* extract the id */
    attr = nad_find_attr(nad, 0, -1, "id", NULL);
    if(attr >= 0)
        nad_set_attr(sess->result, 0, -1, "id", NAD_AVAL(nad, attr), NAD_AVAL_L(nad, attr));

    /* if they're active, then this was just a password change, and we're done */
    if(sess->active) {
        log_write(c2s->log, LOG_NOTICE, "[%d] password changed: jid=%s", sess->s->tag, jid_user(sess->resources->jid));
        sx_nad_write(sess->s, sess->result);
        sess->result = NULL;
        return;
    }

    /* create new bound jid holder */
    if(sess->resources == NULL) {
        sess->resources = (bres_t) calloc(1, sizeof(struct bres_st));
    }

    /* our local id */
    sprintf(sess->resources->c2s_id, "%d", sess->s->tag);

    /* the user jid for this transaction */
    sess->resources->jid = jid_new(sess->s->req_to, -1);
    jid_reset_components(sess->resources->jid, username, sess->resources->jid->domain, sess->resources->jid->resource);

    log_write(c2s->log, LOG_NOTICE, "[%d] registration succeeded, requesting user creation: jid=%s", sess->s->tag, jid_user(sess->resources->jid));

    /* get the sm to create them */
    sm_create(sess, sess->resources);

    nad_free(nad);

    return;
}