modules/websocket: Updated example configuration file

- Use qop="auth" for MSRP authentication
- Support Expires: header in MSRP AUTH requests
- Add Expires: header to 200 OK responses to MSRP AUTH requests
- Authenticate MSRP AUTH requests off subscriber DB

modules/websocket/example/kamailio.cfg

@@ -12,6 +12,8 @@
 #!substdef "!MY_WS_ADDR!tcp:MY_IP_ADDR:MY_WS_PORT!g"
 #!substdef "!MY_WSS_ADDR!tls:MY_IP_ADDR:MY_WSS_PORT!g"
 #!substdef "!MY_MSRP_ADDR!tls:MY_IP_ADDR:MY_MSRP_PORT!g"
+#!substdef "!MSRP_MIN_EXPIRES!1800!g"
+#!substdef "!MSRP_MAX_EXPIRES!3600!g"
 
 ##!define LOCAL_TEST_RUN
 #!define WITH_TLS
@@ -110,6 +112,10 @@ modparam("registrar", "gruu_enabled", 0)
 modparam("usrloc", "db_url", "DBURL")
 modparam("usrloc", "db_mode", 0)
 
+# ----- auth params -----
+modparam("auth", "nonce_count", 1)
+modparam("auth", "qop", "auth")
+
 # ----- auth_db params -----
 modparam("auth_db", "db_url", "DBURL")
 modparam("auth_db", "calculate_ha1", yes)
@@ -137,7 +143,7 @@ modparam("nathelper|registrar", "received_avp", "$avp(RECEIVED)")
 
 #!ifdef WITH_MSRP
 # ----- htable params -----
-modparam("htable", "htable", "msrp=>size=8;autoexpire=3600;")
+modparam("htable", "htable", "msrp=>size=8;autoexpire=MSRP_MAX_EXPIRES;")
 #!endif
 
 
@@ -416,12 +422,10 @@ event_route[msrp:frame-in] {
 			msrp_relay();
 			exit;
 		}
-		# frame for local server - send Use-Path
-		# -- passwd can be loaded from DB based on $au
-		$var(passwd) = "xyz123";
-		if(!pv_www_authenticate("myrealm", "$var(passwd)", "0"))
+
+		if(!www_authenticate("MY_DOMAIN", "subscriber"))
 		{
-			if(auth_get_www_authenticate("myrealm", "0",
+			if(auth_get_www_authenticate("myrealm", "1",
 						"$var(wauth)"))
 			{
 				msrp_reply("401", "Authorization Required",
@@ -431,14 +435,32 @@ event_route[msrp:frame-in] {
 			}
 			exit;
 		}
+
+		if ($hdr(Expires) != $null) {
+			$var(expires) = (int) $hdr(Expires);
+
+			if ($var(expires) < MSRP_MIN_EXPIRES) {
+				msrp_reply("423", "Interval Out-of-Bounds",
+					"Min-Expires: MSRP_MIN_EXPIRES\r\n");
+				exit;
+			} else if ($var(expires) > MSRP_MAX_EXPIRES) {
+				msrp_reply("423", "Interval Out-of-Bounds",
+					"Max-Expires: MSRP_MAX_EXPIRES\r\n");
+					exit;
+			}
+		} else
+			$var(expires) = MSRP_MAX_EXPIRES;
+
 		$var(cnt) = $var(cnt) + 1;
 		pv_printf("$var(sessid)", "s.$(pp).$(var(cnt)).$(RANDOM)");
 		$sht(msrp=>$var(sessid)::srcaddr) = $msrp(srcaddr);
 		$sht(msrp=>$var(sessid)::srcsock) = $msrp(srcsock);
+		$shtex(msrp=>$var(sessid)) = MSRP_MAX_EXPIRES + 5;
 		# - Use-Path: the MSRP address for server + session id
-		$var(UsePath) = "Use-Path: msrp://MY_IP_ADDR:MY_MSRP_PORT/"
-				+ $var(sessid) + ";tcp\r\n";
-		msrp_reply("200", "OK", "$var(UsePath)");
+		$var(headers) = "Use-Path: msrp://MY_IP_ADDR:MY_MSRP_PORT/"
+				+ $var(sessid) + ";tcp\r\n"
+				+ "Expires: " + $var(expires) + "\r\n";
+		msrp_reply("200", "OK", "$var(expires)");
 		exit;
 	}