static int l_siplua_pseudoVar(lua_State *L)
{
struct sipapi_object *o;
const char *name;
str s;
pv_elem_t *model;
int buf_size = 4096;
char *out;
o = luaL_checkudata(L, 1, "siplua.api");
name = luaL_checkstring(L, 2);
s.s = (char *)name;
s.len = strlen(name);
if (pv_parse_format(&s, &model) < 0)
{
lua_pushnil(L);
return 1;
}
out = pkg_malloc(buf_size);
if (!out)
{
pv_elem_free_all(model);
return luaL_error(L, "Not enough memory");
}
if (pv_printf(o->msg, model, out, &buf_size) < 0)
lua_pushnil(L);
else
lua_pushstring(L, out);
pkg_free(out);
pv_elem_free_all(model);
return 1;
}
/**
* Compile a string with pseudo variables substituted by their values.
* A string buffer is allocated. Deallocate afterwards!
*/
char *pv_sprintf(struct sip_msg *m, char *fmt) {
int buf_size = 4096;
pv_elem_t *model;
str s;
char *out = (char *)pkg_malloc(buf_size);
char *ret = NULL;
if (!out) {
LM_ERR("pv_sprintf: Memory exhausted!\n");
return NULL;
}
s.s = fmt; s.len = strlen(s.s);
if(pv_parse_format(&s, &model) < 0) {
LM_ERR("pv_sprintf: ERROR: wrong format[%s]!\n",
fmt);
return NULL;
}
if(pv_printf(m, model, out, &buf_size) < 0) {
ret = NULL;
} else {
ret = strdup(out);
}
pv_elem_free_all(model);
pkg_free(out);
return ret;
}
static void destroy(void)
{
if (auth_db_handle) {
auth_dbf.close(auth_db_handle);
auth_db_handle = 0;
}
if (credentials) {
pv_elem_free_all(credentials);
credentials = 0;
credentials_n = 0;
}
}
/** fparam_t free function.
* Frees the "content" of a fparam, but not the fparam itself.
* Note: it doesn't free fp->orig!
* Assumes pkg_malloc'ed content.
* @param fp - fparam to be freed
*
*/
void fparam_free_contents(fparam_t* fp)
{
if (fp==0)
return;
switch(fp->type) {
case FPARAM_UNSPEC:
case FPARAM_STRING: /* asciiz string, not str */
case FPARAM_INT:
case FPARAM_STR:
/* nothing to do */
break;
case FPARAM_REGEX:
if (fp->v.regex){
regfree(fp->v.regex);
pkg_free(fp->v.regex);
fp->v.regex=0;
}
break;
case FPARAM_AVP:
free_avp_name(&fp->v.avp.flags, &fp->v.avp.name);
break;
case FPARAM_SELECT:
if (fp->v.select){
free_select(fp->v.select);
fp->v.select=0;
}
break;
case FPARAM_SUBST:
if (fp->v.subst){
subst_expr_free(fp->v.subst);
fp->v.subst=0;
}
break;
case FPARAM_PVS:
if (fp->v.pvs){
pv_spec_free(fp->v.pvs);
fp->v.pvs=0;
}
break;
case FPARAM_PVE:
if (fp->v.pve){
pv_elem_free_all(fp->v.pve);
fp->v.pve=0;
}
break;
}
}
/*
* Parse extra credentials list
*/
int parse_aaa_pvs(char *definition, pv_elem_t **pv_def, int *cnt)
{
pv_elem_t *pve;
str pv;
char *p;
char *end;
char *sep;
p = definition;
if (p==0 || *p==0)
return 0;
*pv_def = 0;
*cnt = 0;
/* get element by element */
while ( (end=strchr(p,';'))!=0 || (end=p+strlen(p))!=p ) {
/* new pv_elem_t */
if ( (pve=(pv_elem_t*)pkg_malloc(sizeof(pv_elem_t)))==0 ) {
LM_ERR("no more pkg mem\n");
goto error;
}
memset( pve, 0, sizeof(pv_elem_t));
/* definition is between p and e */
/* search backwards because PV definition may contain '=' characters */
for (sep = end; sep >= p && *sep != '='; sep--);
if (sep > p) {
/* pv=column style */
/* set column name */
pve->text.s = sep + 1;
pve->text.len = end - pve->text.s;
trim(&pve->text);
if (pve->text.len == 0) {
goto parse_error;
}
/* set pv spec */
pv.s = p;
pv.len = sep - p;
trim(&pv);
if (pv.len == 0) {
goto parse_error;
}
} else {
/* no pv, only column name */
pve->text.s = p;
pve->text.len = end - pve->text.s;
trim(&pve->text);
if (pve->text.len == 0) {
goto parse_error;
}
/* create an avp definition for the spec parser */
pv.s = (char*)pkg_malloc(pve->text.len + 7);
if (pv.s == NULL) {
LM_ERR("no more pkg mem\n");
goto parse_error;
}
pv.len = snprintf(pv.s, pve->text.len + 7, "$avp(%.*s)",
pve->text.len, pve->text.s);
}
/* create a pv spec */
LM_DBG("column: %.*s pv: %.*s\n", pve->text.len, pve->text.s, pv.len, pv.s);
pve->spec = pv_spec_lookup(&pv, NULL);
if(pve->spec==NULL || pve->spec->setf == NULL) {
LM_ERR("PV is not writeable: %.*s\n", pv.len, pv.s);
goto parse_error;
}
/* link the element */
pve->next = *pv_def;
*pv_def = pve;
(*cnt)++;
pve = 0;
/* go to the end */
p = end;
if (*p==';') {
p++;
}
if (*p==0) {
break;
}
}
return 0;
parse_error:
LM_ERR("parse failed in \"%s\" at pos %d(%s)\n",
definition, (int)(long)(p-definition),p);
error:
pkg_free( pve );
pv_elem_free_all( *pv_def );
*pv_def = 0;
*cnt = 0;
return -1;
}
int process_body(struct sip_msg* msg, str notify_body, udomain_t * domain) {
xmlDocPtr doc = NULL;
xmlNodePtr doc_root = NULL, registrations = NULL, contacts = NULL, uris = NULL;
str aor = {0, 0};
str callid = {0, 0};
str contact_uri = {0, 0};
str received = {0, 0};
str path = {0, 0};
str user_agent = {0, 0};
int reg_state, contact_state, event, expires, result, final_result = RESULT_ERROR;
char * expires_char=0, * cseq_char=0, *registration_state=0, *contact_state_s=0, *event_s=0;
int cseq = 0;
pv_elem_t *presentity_uri_pv;
doc = xmlParseMemory(notify_body.s, notify_body.len);
if (doc == NULL) {
LM_ERR("Error while parsing the xml body message, Body is:\n%.*s\n",
notify_body.len, notify_body.s);
return -1;
}
doc_root = xmlGetNodeByName(doc->children, "reginfo");
if (doc_root == NULL) {
LM_ERR("while extracting the reginfo node\n");
goto error;
}
registrations = doc_root->children;
while (registrations) {
/* Only process registration sub-items */
if (xmlStrcasecmp(registrations->name, BAD_CAST "registration") != 0)
goto next_registration;
registration_state = xmlGetAttrContentByName(registrations, "state");
reg_state = reginfo_parse_state(registration_state);
if (reg_state == STATE_UNKNOWN) {
LM_ERR("No state for this registration!\n");
goto next_registration;
}
aor.s = xmlGetAttrContentByName(registrations, "aor");
if (aor.s == NULL) {
LM_ERR("No AOR for this registration!\n");
goto next_registration;
}
aor.len = strlen(aor.s);
LM_DBG("AOR %.*s has reg_state \"%d\"\n", aor.len, aor.s, reg_state);
if (reg_state == STATE_TERMINATED) {
//TODO we if there is a IMPU record state here we should delete all contacts associated to it
//Right now we do it go through all the contacts
LM_DBG("AOR %.*s is in state terminated so unsubscribing from reginfo\n", aor.len, aor.s);
//we return a successful result here even if no contacts
final_result = RESULT_TERMINATED_SUCCESS;
if (pv_parse_format(&aor, &presentity_uri_pv) < 0) {
LM_ERR("wrong format[%.*s] - failed unsubscribing to reginfo\n", aor.len, aor.s);
}
reginfo_subscribe_real(msg, presentity_uri_pv, 0, 0);
pv_elem_free_all(presentity_uri_pv);
}
/* Now lets process the Contact's from this Registration: */
contacts = registrations->children;
while (contacts) {
if (xmlStrcasecmp(contacts->name, BAD_CAST "contact") != 0)
goto next_contact;
callid.s = xmlGetAttrContentByName(contacts, "callid");
if (callid.s == NULL) {
LM_DBG("No Call-ID for this contact!\n");
callid.len = 0;
} else {
callid.len = strlen(callid.s);
LM_DBG("contact has callid <%.*s>\n", callid.len, callid.s);
}
received.s = xmlGetAttrContentByName(contacts, "received");
if (received.s == NULL) {
LM_DBG("No received for this contact!\n");
received.len = 0;
} else {
received.len = strlen(received.s);
LM_DBG("contact has received <%.*s>\n", received.len, received.s);
}
path.s = xmlGetAttrContentByName(contacts, "path");
if (path.s == NULL) {
LM_DBG("No path for this contact!\n");
path.len = 0;
} else {
path.len = strlen(path.s);
LM_DBG("contact has path <%.*s>\n", path.len, path.s);
}
user_agent.s = xmlGetAttrContentByName(contacts, "user_agent");
if (user_agent.s == NULL) {
LM_DBG("No user_agent for this contact!\n");
user_agent.len = 0;
} else {
user_agent.len = strlen(user_agent.s);
LM_DBG("contact has user_agent <%.*s>\n", user_agent.len, user_agent.s);
}
event_s = xmlGetAttrContentByName(contacts, "event");
event = reginfo_parse_event(event_s);
if (event == EVENT_UNKNOWN) {
LM_ERR("No event for this contact - going to next contact!\n");
goto next_contact;
}
expires_char = xmlGetAttrContentByName(contacts, "expires");
if (expires_char == NULL) {
LM_ERR("No expires for this contact - going to next contact!\n");
goto next_contact;
}
expires = atoi(expires_char);
if (expires < 0) {
LM_ERR("No valid expires for this contact - going to next contact!\n");
goto next_contact;
}
contact_state_s = xmlGetAttrContentByName(contacts, "state");
contact_state = reginfo_parse_state(contact_state_s);
if (contact_state == STATE_UNKNOWN) {
LM_ERR("No state for this contact - going to next contact!\n");
goto next_contact;
}
LM_DBG("Contact state %d: Event \"%d\", expires %d\n", contact_state, event, expires);
cseq_char = xmlGetAttrContentByName(contacts, "cseq");
if (cseq_char == NULL) {
LM_DBG("No cseq for this contact!\n");
} else {
cseq = atoi(cseq_char);
if (cseq < 0) {
LM_DBG("No valid cseq for this contact!\n");
}
}
/* Now lets process the URI's from this Contact: */
uris = contacts->children;
while (uris) {
if (xmlStrcasecmp(uris->name, BAD_CAST "uri") != 0)
goto next_uri;
contact_uri.s = (char*) xmlNodeGetContent(uris);
if (contact_uri.s == NULL) {
LM_ERR("No URI for this contact - going to next registration!\n");
goto next_registration;
}
contact_uri.len = strlen(contact_uri.s);
LM_DBG("Contact: %.*s\n",
contact_uri.len, contact_uri.s);
/* Add to Usrloc: */
result = process_contact(domain, expires, contact_uri, contact_state);
if (contact_uri.s && (strlen(contact_uri.s)>0)) {
xmlFree(contact_uri.s);
contact_uri.s = NULL;
}
/* Process the result */
if (final_result != RESULT_CONTACTS_FOUND) final_result = result;
next_uri:
uris = uris->next;
}
next_contact:
if (cseq_char && (strlen(cseq_char)>0)) {
xmlFree(cseq_char);
cseq_char=NULL;
}
if (expires_char && (strlen(expires_char)>0)) {
xmlFree(expires_char);
expires_char = NULL;
}
if (user_agent.s && (strlen(user_agent.s)>0)) {
xmlFree(user_agent.s);
user_agent.s = NULL;
}
if (path.s && (strlen(path.s)>0)) {
xmlFree(path.s);
path.s = NULL;
}
if (received.s && (strlen(received.s)>0)) {
xmlFree(received.s);
received.s = NULL;
}
if (callid.s && (strlen(callid.s)>0)) {
xmlFree(callid.s);
callid.s = NULL;
}
if (contact_state_s && (strlen(contact_state_s)>0)) {
xmlFree(contact_state_s);
contact_state_s = NULL;
}
if (event_s && (strlen(event_s)>0)) {
xmlFree(event_s);
event_s = NULL;
}
contacts = contacts->next;
}
next_registration:
// if (ul_record) ul.release_urecord(ul_record);
/* Unlock the domain for this AOR: */
//if (aor_key.len > 0)
// ul.unlock_udomain(domain, &aor_key);
if (registration_state && (strlen(registration_state)>0)) {
xmlFree(registration_state);
registration_state = NULL;
}
if (aor.len > 0 && aor.s) {
xmlFree(aor.s);
aor.s = NULL;
aor.len = 0;
}
registrations = registrations->next;
}
error:
/* Free the XML-Document */
if (doc) xmlFreeDoc(doc);
return final_result;
}
int pv_parse_format(str *in, pv_elem_p *el)
{
char *p, *p0;
int n = 0;
pv_elem_p e, e0;
str s;
int len;
if(in==NULL || in->s==NULL || el==NULL)
return -1;
/*LM_DBG("parsing [%.*s]\n", in->len, in->s);*/
if(in->len == 0)
{
*el = pkg_malloc(sizeof(pv_elem_t));
if(*el == NULL)
goto error;
memset(*el, 0, sizeof(pv_elem_t));
(*el)->text = *in;
return 0;
}
p = in->s;
*el = NULL;
e = e0 = NULL;
while(is_in_str(p,in))
{
e0 = e;
e = pkg_malloc(sizeof(pv_elem_t));
if(!e)
goto error;
memset(e, 0, sizeof(pv_elem_t));
n++;
if(*el == NULL)
*el = e;
if(e0)
e0->next = e;
e->text.s = p;
while(is_in_str(p,in) && *p!=PV_MARKER)
p++;
e->text.len = p - e->text.s;
if(*p == '\0' || !is_in_str(p,in))
break;
s.s = p;
s.len = in->s+in->len-p;
e->spec = pv_spec_lookup(&s, &len);
if(e->spec==NULL)
goto error;
p0 = p + len;
if(*p0 == '\0')
break;
p = p0;
}
/*LM_DBG("format parsed OK: [%d] items\n", n);*/
if(*el == NULL)
return -1;
return 0;
error:
pv_elem_free_all(*el);
*el = NULL;
return -1;
}
/**
* Save the contacts and their associated public ids.
* @param rpl - the SIP Register 200 OK response that contains the Expire and Contact and P-associated-uri headers
* @param _d - domain
* @param _cflags - flags
* @returns #CSCF_RETURN_TRUE if OK, #CSCF_RETURN_ERROR on error
*/
int save(struct sip_msg* _m, udomain_t* _d, int _cflags) {
struct sip_msg* req;
int expires_hdr = 0;
contact_body_t* cb = 0;
str *public_ids=0;
int num_public_ids = 0;
str *service_routes=0;
int num_service_routes = 0;
pv_elem_t *presentity_uri_pv;
//get request from reply
req = get_request_from_reply(_m);
if (!req) {
LM_ERR("Unable to get request from reply for REGISTER. No transaction\n");
goto error;
}
expires_hdr = cscf_get_expires_hdr(_m, 0);
cb = cscf_parse_contacts(_m);
if (!cb || (!cb->contacts && !cb->star)) {
LM_DBG("No contact headers and not *\n");
goto error;
}
cscf_get_p_associated_uri(_m, &public_ids, &num_public_ids, 1);
service_routes = cscf_get_service_route(_m, &num_service_routes, 1);
//update contacts
if (!update_contacts(req, _m, _d, cb->star, expires_hdr, public_ids, num_public_ids, service_routes, num_service_routes, 0)) {
LM_ERR("failed to update pcontact\n");
goto error;
}
if(subscribe_to_reginfo == 1){
//use the first p_associated_uri - i.e. the default IMPU
LM_DBG("Subscribe to reg event for primary p_associated_uri");
if(num_public_ids > 0){
//find the first routable (not a tel: URI and use that that presentity)
//if you can not find one then exit
int i = 0;
int found_presentity_uri=0;
while (i < num_public_ids && found_presentity_uri == 0)
{
//check if public_id[i] is NOT a tel URI - if it isn't then concert to pv format and set found presentity_uri to 1
if (strncasecmp(public_ids[i].s,"tel:",4)==0) {
LM_DBG("This is a tel URI - it is not routable so we don't use it to subscribe");
i++;
}
else {
//convert primary p_associated_uri to pv_elem_t
if(pv_parse_format(&public_ids[i], &presentity_uri_pv)<0) {
LM_ERR("wrong format[%.*s]\n",public_ids[i].len, public_ids[i].s);
goto error;
}
found_presentity_uri=1;
}
}
if(found_presentity_uri!=1){
LM_ERR("Could not find routable URI in p_assoiated_uri list - failed to subscribe");
goto error;
}
}else{
//Now some how check if there is a pua record and what the presentity uri is from there - if nothing there
LM_DBG("No p_associated_uri in 200 OK this must be a de-register - we ignore this - will unsubscribe when the notify is received");
goto done;
}
reginfo_subscribe_real(_m, presentity_uri_pv, service_routes, subscription_expires);
pv_elem_free_all(presentity_uri_pv);
}
done:
if (public_ids && public_ids->s) pkg_free(public_ids);
if (service_routes && service_routes->s) pkg_free(service_routes);
return 1;
error:
if (public_ids && public_ids->s) pkg_free(public_ids);
if (service_routes && service_routes->s) pkg_free(service_routes);
return -1;
}
int do_acc_fixup(void** param, int param_no)
{
str s;
pv_elem_p el;
unsigned long long ival;
unsigned long long* ival_p;
acc_type_param_t* acc_param;
do_acc_parser parser;
if (param_no < 1 || param_no > 3) {
LM_ERR("invalid param_no <%d>!\n", param_no);
return -1;
}
switch (param_no) {
case 1:
parser=do_acc_type_parser;
s.s = *param;
s.len = strlen(s.s);
if (pv_parse_format(&s, &el) < 0) {
LM_ERR("invalid format <%.*s>!\n", s.len, s.s);
return -1;
}
acc_param=pkg_malloc(sizeof(acc_type_param_t));
if (acc_param == NULL) {
LM_ERR("no more pkg mem!\n");
return -1;
}
memset(acc_param, 0, sizeof(acc_type_param_t));
if (el->next == 0 && el->spec.getf == 0) {
pv_elem_free_all(el);
if ( (ival=do_acc_parse(&el->text, parser)) < 0) {
LM_ERR("Invalid value <%.*s>!\n", el->text.len, el->text.s);
return -1;
}
acc_param->t = DO_ACC_PARAM_TYPE_VALUE;
acc_param->u.ival = ival;
} else {
acc_param->t = DO_ACC_PARAM_TYPE_PV;
acc_param->u.pval = el;
}
*param = acc_param;
break;
case 2:
parser=do_acc_flags_parser;
s.s = *param;
s.len = strlen(s.s);
if ( (ival=do_acc_parse(&s, parser)) < 0) {
LM_ERR("Invalid value <%.*s>!\n", s.len, s.s);
return -1;
}
if ((ival_p=pkg_malloc(sizeof(unsigned long long))) == NULL) {
LM_ERR("no more pkg mem!\n");
return -1;
}
*ival_p = ival;
*param = ival_p;
break;
case 3:
return fixup_sgp(param);
}
return 0;
}