static void stream_node_callback(int type, xode node, void *arg)
{
struct xmpp_private_data *priv = (struct xmpp_private_data *) arg;
char *id, *hash, *tag;
char buf[4096];
xode x;
LM_DBG("stream callback: %d: %s\n", type, node ? xode_get_name(node) : "n/a");
switch (type) {
case XODE_STREAM_ROOT:
id = xode_get_attrib(node, "id");
snprintf(buf, sizeof(buf), "%s%s", id, xmpp_password);
hash = shahash(buf);
x = xode_new_tag("handshake");
xode_insert_cdata(x, hash, -1);
xode_send(priv->fd, x);
xode_free(x);
break;
case XODE_STREAM_NODE:
tag = xode_get_name(node);
if (!strcmp(tag, "handshake")) {
LM_DBG("handshake succeeded\n");
} else if (!strcmp(tag, "message")) {
LM_DBG("XMPP IM received\n");
char *from = xode_get_attrib(node, "from");
char *to = xode_get_attrib(node, "to");
char *type = xode_get_attrib(node, "type");
xode body = xode_get_tag(node, "body");
char *msg;
if (!type)
type = "chat";
if (!strcmp(type, "error")) {
LM_DBG("received message error stanza\n");
goto out;
}
if (!from || !to || !body) {
LM_DBG("invalid <message/> attributes\n");
goto out;
}
if (!(msg = xode_get_data(body)))
msg = "";
xmpp_send_sip_msg(
encode_uri_xmpp_sip(from),
decode_uri_xmpp_sip(to),
msg);
} else if (!strcmp(tag, "presence")) {
/* call presence callbacks */
LM_DBG("XMPP Presence received\n");
run_xmpp_callbacks(XMPP_RCV_PRESENCE, xode_to_str(node));
} else if (!strcmp(tag, "iq")) {
/* call presence callbacks */
LM_DBG("XMPP IQ received\n");
run_xmpp_callbacks(XMPP_RCV_IQ, xode_to_str(node));
}
break;
case XODE_STREAM_ERROR:
LM_ERR("stream error\n");
/* fall-through */
case XODE_STREAM_CLOSE:
priv->running = 0;
break;
}
out:
xode_free(node);
}
/**
* authentication to the JABBER server
*/
int xj_jcon_user_auth(xj_jcon jbc, char *username, char *passwd,
char *resource)
{
char msg_buff[4096];
int n, i, err;
char *p0, *p1;
xode x, y, z;
/*** send open stream tag **/
sprintf(msg_buff, JB_CLIENT_OPEN_STREAM, jbc->hostname);
if(send(jbc->sock, msg_buff, strlen(msg_buff), 0) != strlen(msg_buff))
goto error;
n = recv(jbc->sock, msg_buff, 4096, 0);
msg_buff[n] = 0;
if(strncasecmp(msg_buff, JB_START_STREAM, JB_START_STREAM_LEN))
goto error;
p0 = strstr(msg_buff + JB_START_STREAM_LEN, "id='");
if(p0 == NULL)
goto error;
p0 += 4;
p1 = strchr(p0, '\'');
if(p1 == NULL)
goto error;
jbc->stream_id = (char*)_M_MALLOC(p1-p0+1);
strncpy(jbc->stream_id, p0, p1-p0);
jbc->stream_id[p1-p0] = 0;
sprintf(msg_buff, "%08X", jbc->seq_nr);
x = xode_new_tag("iq");
if(!x)
return -1;
xode_put_attrib(x, "id", msg_buff);
xode_put_attrib(x, "type", "get");
y = xode_insert_tag(x, "query");
xode_put_attrib(y, "xmlns", "jabber:iq:auth");
z = xode_insert_tag(y, "username");
xode_insert_cdata(z, username, -1);
p0 = xode_to_str(x);
n = strlen(p0);
i = send(jbc->sock, p0, n, 0);
if(i != n)
goto errorx;
xode_free(x);
// receive response
// try 10 times
i = 10;
while(i)
{
if((n = recv(jbc->sock, msg_buff, 4096, 0)) > 0)
{
msg_buff[n] = 0;
break;
}
usleep(1000);
i--;
}
if(!i)
goto error;
x = xode_from_strx(msg_buff, n, &err, &i);
p0 = msg_buff;
if(err)
p0 += i;
if(strncasecmp(xode_get_name(x), "iq", 2))
goto errorx;
if((x = xode_get_tag(x, "query?xmlns=jabber:iq:auth")) == NULL)
goto errorx;
y = xode_new_tag("query");
xode_put_attrib(y, "xmlns", "jabber:iq:auth");
z = xode_insert_tag(y, "username");
xode_insert_cdata(z, username, -1);
z = xode_insert_tag(y, "resource");
xode_insert_cdata(z, resource, -1);
if(xode_get_tag(x, "digest") != NULL)
{ // digest authentication
//sprintf(msg_buff, "%s%s", jbc->stream_id, passwd);
strcpy(msg_buff, jbc->stream_id);
strcat(msg_buff, passwd);
//DBG("XJAB:xj_jcon_user_auth: [%s:%s]\n", jbc->stream_id, passwd);
p1 = shahash(msg_buff);
z = xode_insert_tag(y, "digest");
xode_insert_cdata(z, p1, -1);
}
else
{ // plaint text authentication
z = xode_insert_tag(y, "password");
xode_insert_cdata(z, passwd, -1);
}
y = xode_wrap(y, "iq");
jbc->seq_nr++;
sprintf(msg_buff, "%08X", jbc->seq_nr);
xode_put_attrib(y, "id", msg_buff);
xode_put_attrib(y, "type", "set");
p1 = xode_to_str(y);
n = strlen(p1);
i = send(jbc->sock, p1, n, 0);
if(i != n)
{
xode_free(y);
goto errorx;
}
xode_free(x);
xode_free(y);
// receive response
// try 10 times
i = 10;
while(i)
{
if((n = recv(jbc->sock, msg_buff, 4096, 0)) > 0)
{
msg_buff[n] = 0;
break;
}
usleep(1000);
i--;
}
if(!i)
goto error;
x = xode_from_strx(msg_buff, n, &err, &i);
p0 = msg_buff;
if(err)
p0 += i;
if(strncasecmp(xode_get_name(x), "iq", 2) ||
strncasecmp(xode_get_attrib(x, "type"), "result", 6))
goto errorx;
jbc->resource = (char*)_M_MALLOC(strlen(resource)+1);
strcpy(jbc->resource, resource);
jbc->allowed = XJ_NET_ALL;
jbc->ready = XJ_NET_JAB;
return 0;
errorx:
xode_free(x);
error:
return -1;
}
