/**
* Looks for the P-Asserted-Identity header and extracts its content
* @param msg - the sip message
* @returns the asserted identity
*/
str cscf_get_asserted_identity(struct sip_msg *msg, int is_shm) {
int len;
str uri = { 0, 0 };
if (!msg || !msg->pai)
return uri;
if ((parse_pai_header(msg) == 0) && (msg->pai) && (msg->pai->parsed)) {
to_body_t *pai = get_pai(msg)->id;
if (!is_shm)
return pai->uri;
//make a pkg malloc str to return to consuming function
len = pai->uri.len + 1;
uri.s = (char*) pkg_malloc(pai->uri.len + 1);
if (!uri.s) {
LM_ERR("no more pkg mem\n");
return uri;
}
memset(uri.s, 0, len);
memcpy(uri.s, pai->uri.s, pai->uri.len);
uri.len = pai->uri.len;
p_id_body_t* ptr = (p_id_body_t*) msg->pai->parsed;
msg->pai->parsed = 0;
free_pai_ppi_body(ptr);
}
return uri;
}
/*
* Get user part from P-Asserted-Identity header
* param msg SIP message
* param user User part of P-Asserted-Identity header
* param bufsize Size of fromuser buffer
* return 0 success, 1 without PAI, -1 failure
*/
int ospGetPaiUserpart(
struct sip_msg* msg,
char* paiuser,
int bufsize)
{
struct to_body* pai;
struct sip_uri uri;
int result = -1;
if ((paiuser != NULL) && (bufsize > 0)) {
paiuser[0] = '\0';
if (msg->pai != NULL) {
if (parse_pai_header(msg) == 0) {
pai = get_pai(msg);
if (parse_uri(pai->uri.s, pai->uri.len, &uri) == 0) {
ospCopyStrToBuffer(&uri.user, paiuser, bufsize);
ospSkipUserParam(paiuser);
result = 0;
} else {
LM_ERR("failed to parse PAI uri\n");
}
} else {
LM_ERR("failed to parse PAI uri\n");
}
} else {
LM_DBG("without PAI header\n");
result = 1;
}
} else {
LM_ERR("bad parameters to parse user part from PAI\n");
}
return result;
}