/*****************************************************************************
* @name
* @description
* @param
* @return
*/
void send_sip_invite(sip_session_t *session)
{
int l;
char *s;
struct sockaddr_in addr;
s = gen_call_id(session);
session->call->id = (char *) malloc(strlen(s)*sizeof(char));
memcpy(session->call->id,s,strlen(s));
session->call->socket = open_udp_socket(session->localip,0);
l = sizeof(addr);
if(getsockname(session->call->socket,(struct sockaddr *) &addr,(socklen_t *) &l))
die_with_error("getsockname() failed");
session->call->sport = ntohs(addr.sin_port);
s = mk_sip_msg(session,0,INVITE);
if((l =sendto(session->socket,s,strlen(s)+1,0,(struct sockaddr *) &(session->addr), sizeof(session->addr)) ) != strlen(s)+1)
die_with_error("sendto() failed");
session->prev_state = REGISTERED;
session->curr_state = INVITING;
}
//==========================================================================================================
// Get the value for a variable that appear in the script in brackets (like [call_id]). Some are static to
// the test (received from MServer), some generated, some stored from previous messages.
//==========================================================================================================
string ScriptReader::get_value(string var, int call_number, bool try_as_last)
{
smatch match;
if(!regex_match(var, match, var_regex))
{
throw string("Wrong format for var in ScriptReader::get_value(): " + var);
}
// var_regex: "(last_)?(((cseq)\\+(\\d+))|([-\\w]+))(:value)?"
// submatches: 1 234 5 6 7
bool is_last = (match[1].length() > 0);
bool just_value = (match[7].length() > 0);
int add_to_cseq = 0;
string name = match[2];
if(match[3].length() > 0)
{
name = match[4];
add_to_cseq = stoi(match[5]);
}
if(is_last || (try_as_last && (SipMessage::is_message_var(name) || SipParser::inst().match(HEADER_NAME, name))))
{
string result = get_last_value(name, call_number, just_value);
if(name == CSEQ)
{
return to_string(stoi(result) + add_to_cseq);
}
return result;
}
if(name == BRANCH)
{
return gen_branch();
}
CallIDKind cid_kind = string_to_call_id_kind(name);
if(cid_kind != NONE)
{
return gen_call_id(cid_kind);
}
if(name == TAG)
{
return gen_tag();
}
if(vars.count(name) != 0)
{
return vars[name];
}
if(static_vars.count(name) != 0)
{
return static_vars.at(name);
}
return MServer::inst.get_value(name);
}
