support srtp for sips sipuri outbound call (#224)

* support srtp for sips sipuri outbound call

* wip

* wip

* add env variable for disable the srtp for sipURI

lib/call-session.js

@@ -237,6 +237,11 @@ class CallSession extends Emitter {
         this.logger.info(`sending call to registered user ${destUri}`);
       }
       else if (this.req.locals.target === 'forward') {
+        if (process.env.JAMBONES_SIPS_FORWARD_SRTP && this.req.uri.startsWith('sips:')) {
+          this.logger.info({uri: this.req.uri}, 'using SRTP/TLS for forwarded sips: call');
+          this.rtpEngineOpts = makeRtpEngineOpts(this.req, false, true, false, false);
+          encryptedMedia = true;
+        }
         uris = [{
           private_network: await isPrivateVoipNetwork(this.req.uri),
           uri: this.req.uri

package-lock.json

@@ -21,7 +21,7 @@
         "cidr-matcher": "^2.1.1",
         "debug": "^4.4.3",
         "drachtio-fn-b2b-sugar": "^0.2.1",
-        "drachtio-srf": "^5.0.20",
+        "drachtio-srf": "^5.0.21",
         "express": "^4.21.2",
         "pino": "^10.1.0",
         "sdp-transform": "^2.15.0"
@@ -1597,9 +1597,9 @@
       "integrity": "sha512-bMtje8GWVTze+UG6WSGnlUfBaYCuFiApNXl/XxWc+X9uATZiZkV2jIqhf+Y4SY3nS8dZclJIVKd9qwoCa+i+Vw=="
     },
     "node_modules/drachtio-srf": {
-      "version": "5.0.20",
-      "resolved": "https://registry.npmjs.org/drachtio-srf/-/drachtio-srf-5.0.20.tgz",
-      "integrity": "sha512-gqWTfqFZhC93TVBaFtRseemmfHPASotMfHhCy/3wQUHZShUl+Zr7Vbq+pLD1kyTNr4/pzpMwEMLd0/6oq/fCtg==",
+      "version": "5.0.21",
+      "resolved": "https://registry.npmjs.org/drachtio-srf/-/drachtio-srf-5.0.21.tgz",
+      "integrity": "sha512-9hkQ7LURI1ceTMs49Nh2aosAd2v0565eD8Ccho5sSzXEHuq0DE3epjStlThq6LvIGVVAOXuSQGXFmlMWK92R3w==",
       "license": "MIT",
       "dependencies": {
         "debug": "^4.4.3",

package.json

@@ -39,7 +39,7 @@
     "cidr-matcher": "^2.1.1",
     "debug": "^4.4.3",
     "drachtio-fn-b2b-sugar": "^0.2.1",
-    "drachtio-srf": "^5.0.20",
+    "drachtio-srf": "^5.0.21",
     "express": "^4.21.2",
     "pino": "^10.1.0",
     "sdp-transform": "^2.15.0"