/* returns -1 on error. */
int osip_message_set_contact(osip_message_t * sip, const char *hvalue)
{
int i;
osip_contact_t *contact;
if (hvalue == NULL || hvalue[0] == '\0')
return OSIP_SUCCESS;
i = osip_contact_init(&contact);
if (i != 0)
return i;
i = osip_contact_parse(contact, hvalue);
if (i != 0) {
osip_contact_free(contact);
return i;
}
sip->message_property = 2;
osip_list_add(&sip->contacts, contact, -1);
return OSIP_SUCCESS; /* ok */
}
/*
* SIP_REWRITE_CONTACT
*
* rewrite the Contact header
*
* RETURNS
* STS_SUCCESS on success
* STS_FAILURE on error
*/
int sip_rewrite_contact (sip_ticket_t *ticket, int direction,
struct in_addr *local_ip) {
osip_message_t *sip_msg=ticket->sipmsg;
osip_contact_t *contact;
int i;
#if UNREG_WITHOUT_REG_HG522
char tmpUserName[128] = {0};
char tmpPort[6] = {0};
#endif
if (sip_msg == NULL) return STS_FAILURE;
osip_message_get_contact(sip_msg, 0, &contact);
if (contact == NULL)
{
printsip("sip: rewrite_contact contact is NULL \r\n");
return STS_FAILURE;
}
for (i=0;i<URLMAP_SIZE;i++){
if (urlmap[i].active == 0) continue;
if ((direction == DIR_OUTGOING) &&
(compare_url(contact->url, urlmap[i].true_url)==STS_SUCCESS)) break;
if ((direction == DIR_INCOMING) &&
(compare_url(contact->url, urlmap[i].masq_url)==STS_SUCCESS)) break;
#if UNREG_WITHOUT_REG_HG522
if ((direction == DIR_OUTGOING) && (NULL != contact->url) && (NULL != urlmap[i].true_url)
&& (NULL != contact->url->host) && (NULL != urlmap[i].true_url->host)
&& (strcmp(contact->url->host, urlmap[i].true_url->host) == 0))
{
strcpy(tmpUserName, contact->url->username);
if (NULL != contact->url->port)
{
strncpy(tmpPort, contact->url->port, 6);
}
break;
}
#endif
}
/* found a mapping entry */
if (i<URLMAP_SIZE) {
char *tmp;
if (NULL != contact->url)
{
printsip("************* sip: rewrote Contact header %s@%s:%s -> %s@%s:%s \r\n",
(contact->url->username)? contact->url->username : "******",
(contact->url->host)? contact->url->host : "*NULL*",
(contact->url->port)? contact->url->port : "NULL port",
urlmap[i].masq_url->username, urlmap[i].masq_url->host,
(urlmap[i].masq_url->port)? urlmap[i].masq_url->port : "NULL port");
}
/* remove old entry */
osip_list_remove(sip_msg->contacts,0);
osip_contact_to_str(contact, &tmp);
osip_contact_free(contact);
/* clone the url from urlmap */
osip_contact_init(&contact);
osip_contact_parse(contact,tmp);
osip_free(tmp);
osip_uri_free(contact->url);
if (direction == DIR_OUTGOING) {
/* outgoing, use masqueraded url */
osip_uri_clone(urlmap[i].masq_url, &contact->url);
if (local_ip != NULL) {
char *ip = malloc(20);
strncpy(ip, inet_ntoa(*local_ip), 20);
free(contact->url->host);
contact->url->host = ip;
}
#if UNREG_WITHOUT_REG_HG522
if ('\0' != tmpUserName[0])
{
char *username = malloc(strlen(tmpUserName)+1);
strncpy(username, tmpUserName, strlen(tmpUserName)+1);
free(contact->url->username);
contact->url->username = username;
}
if ((NULL == urlmap[i].masq_url->port) && ('\0' != tmpPort[0]))
{
char *port = malloc(strlen(tmpPort)+1);
strncpy(port, tmpPort, strlen(tmpPort)+1);
contact->url->port = port;
}
#endif
} else {
/* incoming, use true url */
osip_uri_clone(urlmap[i].true_url, &contact->url);
printsip("incoming: osip_uri_clone from %s \r\n",
urlmap[i].true_url->host);
}
osip_list_add(sip_msg->contacts,contact,-1);
} else {
return STS_FAILURE;
}
return STS_SUCCESS;
}
/*
* SIP_REWRITE_CONTACT
*
* rewrite the Contact header
*
* RETURNS
* STS_SUCCESS on success
* STS_FAILURE on error
*/
int sip_rewrite_contact (sip_ticket_t *ticket, int direction) {
osip_message_t *sip_msg=ticket->sipmsg;
osip_contact_t *contact;
int i, j;
int replaced=0;
if (sip_msg == NULL) return STS_FAILURE;
/* at least one contact header present? */
osip_message_get_contact(sip_msg, 0, &contact);
if (contact == NULL) return STS_FAILURE;
/* loop for all existing contact headers in message */
for (j=0; contact != NULL; j++) {
osip_message_get_contact(sip_msg, j, &contact);
if (contact == NULL) break;
if (contact->url == NULL) continue;
/* search for an entry */
for (i=0;i<URLMAP_SIZE;i++){
if (urlmap[i].active == 0) continue;
if ((direction == DIR_OUTGOING) &&
(compare_url(contact->url, urlmap[i].true_url)==STS_SUCCESS)) break;
if ((direction == DIR_INCOMING) &&
(compare_url(contact->url, urlmap[i].masq_url)==STS_SUCCESS)) break;
}
/* found a mapping entry */
if (i<URLMAP_SIZE) {
char *tmp;
if (direction == DIR_OUTGOING) {
DEBUGC(DBCLASS_PROXY, "rewriting Contact header %s@%s -> %s@%s",
(contact->url->username)? contact->url->username : "******",
(contact->url->host)? contact->url->host : "*NULL*",
urlmap[i].masq_url->username, urlmap[i].masq_url->host);
} else {
DEBUGC(DBCLASS_PROXY, "rewriting Contact header %s@%s -> %s@%s",
(contact->url->username)? contact->url->username : "******",
(contact->url->host)? contact->url->host : "*NULL*",
urlmap[i].true_url->username, urlmap[i].true_url->host);
}
/* remove old entry */
osip_list_remove(sip_msg->contacts,j);
osip_contact_to_str(contact, &tmp);
osip_contact_free(contact);
/* clone the url from urlmap*/
osip_contact_init(&contact);
osip_contact_parse(contact,tmp);
osip_free(tmp);
osip_uri_free(contact->url);
if (direction == DIR_OUTGOING) {
/* outgoing, use masqueraded url */
osip_uri_clone(urlmap[i].masq_url, &contact->url);
} else {
/* incoming, use true url */
osip_uri_clone(urlmap[i].true_url, &contact->url);
}
osip_list_add(sip_msg->contacts,contact,j);
replaced=1;
}
}
if (replaced == 0) {
DEBUGC(DBCLASS_PROXY, "no Contact header rewritten");
return STS_FAILURE;
}
return STS_SUCCESS;
}
