debug=3
fork=no
log_stderror=yes

listen=192.168.1.15
port=5060
children=4

dns=no
rev_dns=no

mpath="/usr/local/lib/openser/modules/"

loadmodule "mysql.so"
loadmodule "sl.so"
loadmodule "tm.so"
loadmodule "rr.so"
loadmodule "maxfwd.so"
loadmodule "usrloc.so"
loadmodule "registrar.so"
loadmodule "auth.so"
loadmodule "auth_db.so"
loadmodule "uri_db.so"
loadmodule "mi_fifo.so"
loadmodule "xlog.so"
loadmodule "textops.so"

modparam("auth_db","calculate_ha1",1)
modparam("auth_db","password_column","password")
modparam("usrloc","db_mode",2)
modparam("rr","enable_full_lr",1)
modparam("mi_fifo","fifo_name","/tmp/openser_fifo")

route
{
  t_on_reply("1");

  if(!mf_process_maxfwd_header("10")) {
    sl_send_reply("483","Too Many Hops");
    exit;
  }

  if(msg:len>max_len) {
    sl_send_reply("513","Message Overflow");
    exit;
  }

  # displaying only the INVITE requests
  if(method=="INVITE")
  {
    xlog("L_NOTICE","$rm from $si\n$Cbg$mb$Cxx\n");
    if(search("^P-hint: [Ss]elf-[Ll]ooped"))
    {
      # if the second arrival relay it, without further processing
      # namely without another Record-Route (which will cause looping
      # of all messages of the dialog, e.g. of the BYE and its replies)
      xlog("L_NOTICE","Self-Looped INVITE is received\n");
      if(search("^Proxy-Authorization:"))
      {
        xlog("L_NOTICE","$CrxThe credentials are being forwarded to the next hop:$Cxx\n");
        xlog("L_NOTICE","$Crx$hdr(Proxy-Authorization[*])$Cxx\n");
      }
      else
        xlog("L_NOTICE","$CgxNo credentials of the originating user are found$Cxx\n");
      route(1);
      exit;
    }
  }

  if(method!="REGISTER") {
    record_route();
  }

  if(loose_route()) {
    xlog("L_NOTICE","Loose Route $rm\n");
    route(1);
    exit;
  }

  if(uri!=myself) {
    xlog("L_NOTICE","Not my URI\n");
    route(1);
    exit;
  }

  if(method=="ACK") {
    xlog("L_NOTICE","ACK\n");
    route(1);
    exit;
  } else if (method=="INVITE") {
    xlog("L_NOTICE","Processing by INVITE handler ...\n");
    route(3);
    exit;
  } else if (method=="REGISTER") {
    xlog("L_NOTICE","REGISTER from $si\n");
    route(2);
    exit;
  }

  lookup("aliases");
  if(uri!=myself) {
    xlog("L_NOTICE","Not my URI after lookup for aliases\n");
    route(1);
    exit;
  }

  if(!lookup("location")) {
    xlog("L_NOTICE","User is not found\n");
    sl_send_reply("404","User Not Found");
    exit;
  }

  xlog("L_NOTICE","Routing logic's last relay statement\n");
  route(1);
}

route[1]
{
  if(!t_relay()) {
    sl_reply_error();
  }
}

route[2]
{
  sl_send_reply("100","Trying to Register");
  if(!www_authorize("","subscriber")) {
    www_challenge("","0");
    exit;
  }

  if(!check_to()) {
    sl_send_reply("401","Unauthorized");
    exit;
  }

  consume_credentials();

  if(!save("location")) {
    sl_reply_error();
  }
}

route[3]
{
  if(!proxy_authorize("","subscriber")) {
    proxy_challenge("","0");
    exit;
  } else if (!check_from()) {
    sl_send_reply("403","Use From=ID");
    exit;
  }

  consume_credentials();
  # Without consume_credentials() function the Proxy-Authorization header,
  # like the one shown below:
  # Proxy-Authorization: Digest username="11", realm="192.168.1.15", algorithm=MD5, uri="sip:10@192.168.1.15", nonce="4626337a5b022fd5e90dc62a4c2bd896c5a4d162", response="7d5221b309b68186651dd3af6f6f6dd0"
  # will be forwarded to the next hope, e.g. to
  # the callee User Agent

  lookup("aliases");
  if(uri!=myself) {
    route(1);
    exit;
  }

  if(!lookup("location")) {
    sl_send_reply("404","User Not Found");
    exit;
  }

  append_hf("P-hint: Self-Looped\r\n");
  xlog("L_NOTICE","Sending out first to myself for examining the content\n");
  t_relay("192.168.1.15");
  exit;

  route(1);
}

onreply_route[1]
{
  xlog("L_NOTICE","$Cbx$rs ($rr) concerning $rm$Cxx\n");
}