static void iks_sasl_challenge(struct stream_data *data, iks *challenge)
{
char *message;
iks *x;
char *tmp;
tmp = iks_cdata(iks_child(challenge));
if(!tmp) return;
/* decode received blob */
message = iks_base64_decode(tmp, NULL);
if(!message) return;
/* reply the challenge */
if(strstr(message, "rspauth"))
{
x = iks_new("response");
}
else
{
x = make_sasl_response(data, message);
}
if(x)
{
iks_insert_attrib(x, "xmlns", IKS_NS_XMPP_SASL);
iks_send(data->prs, x);
iks_delete(x);
}
iks_free(message);
}
/**
* Parse authzid, authcid, and password tokens from base64 PLAIN auth message.
* @param message the base-64 encoded authentication message
* @param authzid the authorization id in the message - free this string when done with parsed message
* @param authcid the authentication id in the message
* @param password the password in the message
*/
void parse_plain_auth_message(const char *message, char **authzid, char **authcid, char **password)
{
char *decoded = iks_base64_decode(message);
int maxlen = strlen(message) * 6 / 8 + 1;
int pos = 0;
*authzid = NULL;
*authcid = NULL;
*password = NULL;
if (decoded == NULL) {
goto end;
}
pos = strlen(decoded) + 1;
if (pos >= maxlen) {
goto end;
}
*authcid = strdup(decoded + pos);
pos += strlen(*authcid) + 1;
if (pos >= maxlen) {
goto end;
}
*password = strdup(decoded + pos);
if (zstr(decoded)) {
*authzid = strdup(*authcid);
} else {
*authzid = strdup(decoded);
}
end:
switch_safe_free(decoded);
}
// xxx needs error return value
static void
send_sasl_challenge (ikss_Stream *self, iks *challenge)
{
char *message;
iks *x;
char *tmp;
tmp = iks_cdata (iks_child (challenge));
if (!tmp) return;
/* decode received blob */
message = iks_base64_decode (tmp);
if (!message) return;
/* reply the challenge */
if (strstr (message, "rspauth")) {
x = iks_new ("response");
} else {
x = make_sasl_response (self, message);
}
if (x) {
iks_insert_attrib (x, "xmlns", IKS_NS_XMPP_SASL);
ikss_Stream_send_node (self, x); // xxx check return value
iks_delete (x);
}
iks_free (message);
}
