DX-2100 webrtc standalone transfer verb

Bandwidth.Standard/WebRtc/Utils/WebRtcTransfer.cs

@@ -1,17 +1,34 @@
-using System.ComponentModel;
-
 namespace Bandwidth.Standard.WebRtc.Utils
 {
     public static class WebRtcTransfer {
-        public static string generateBxml(string deviceToken) {
-            return WebRtcTransfer.generateBxml(deviceToken, "sip:sipx.webrtc.bandwidth.com:5060");
+        private const string SipUri = "sip:sipx.webrtc.bandwidth.com:5060";
+
+        public static string GenerateBxml(string deviceToken, string sipUri = SipUri)
+        {
+            var bxmlVerb = GenerateBxmlVerb(deviceToken, sipUri);
+            return GenerateBxml(bxmlVerb);
+        }
+
+        public static string GenerateBxmlVoiceCallId(string deviceToken, string voiceCallId, string sipUri = SipUri)
+        {
+            var bxmlVerb = GenerateBxmlVerbVoiceCallId(deviceToken, voiceCallId, sipUri);
+            return GenerateBxml(bxmlVerb);
+        }
+
+        public static string GenerateBxmlVerb(string deviceToken, string sipUri = SipUri)
+        {
+            return $"<Transfer><SipUri uui=\"{deviceToken};encoding=jwt\">{sipUri}</SipUri></Transfer>";
+        }
+
+        public static string GenerateBxmlVerbVoiceCallId(string deviceToken, string voiceCallId, string sipUri = SipUri)
+        {
+            voiceCallId = voiceCallId.Substring(1).Replace("-", "");
+            return $"<Transfer><SipUri uui=\"{voiceCallId};encoding=base64,{deviceToken};encoding=jwt\">{sipUri}</SipUri></Transfer>";
         }
 
-        public static string generateBxml(string deviceToken, string sipUri) {
-            return "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n"
-                + "<Response><Transfer>\n"
-                + "\t<SipUri uui=\"" + deviceToken + ";encoding=jwt\">" + sipUri + "</SipUri>\n"
-                + "</Transfer></Response>\n";
+        private static string GenerateBxml(string response)
+        {
+            return $"<?xml version=\"1.0\" encoding=\"UTF-8\" ?><Response>{response}</Response>";
         }
     }
 }

Bandwidth.StandardTests/WebRtc/BxmlTests.cs

@@ -0,0 +1,56 @@
+using Bandwidth.Standard.WebRtc.Utils;
+using Xunit;
+
+namespace Bandwidth.StandardTests.WebRtc
+{
+    public class BxmlTests
+    {
+        [Fact]
+        public void GenerateBxml()
+        {
+            const string deviceToken = "test-device-token";
+            var bxml = WebRtcTransfer.GenerateBxml(deviceToken);
+
+            const string expected = "<?xml version=\"1.0\" encoding=\"UTF-8\" ?><Response><Transfer><SipUri uui=\"test-device-token;encoding=jwt\">sip:sipx.webrtc.bandwidth.com:5060</SipUri></Transfer></Response>";
+
+            Assert.Equal(expected, bxml);
+        }
+
+        [Fact]
+        public void GenerateBxmlWithCustomSipUri()
+        {
+            const string deviceToken = "test-device-token";
+            const string sipUri = "sip:sipx.acme.com:6112";
+            var bxml = WebRtcTransfer.GenerateBxml(deviceToken, sipUri);
+
+            const string expected = "<?xml version=\"1.0\" encoding=\"UTF-8\" ?><Response><Transfer><SipUri uui=\"test-device-token;encoding=jwt\">sip:sipx.acme.com:6112</SipUri></Transfer></Response>";
+
+            Assert.Equal(expected, bxml);
+        }
+
+        [Fact]
+        public void GenerateBxmlVoiceCallId()
+        {
+            const string deviceToken = "test-device-token";
+            const string voiceCallId = "c-93d6f3c0-be584596-0b74-4fa2-8015-d8ede84bd1a4";
+            var bxml = WebRtcTransfer.GenerateBxmlVoiceCallId(deviceToken, voiceCallId);
+
+            const string expected = "<?xml version=\"1.0\" encoding=\"UTF-8\" ?><Response><Transfer><SipUri uui=\"93d6f3c0be5845960b744fa28015d8ede84bd1a4;encoding=base64,test-device-token;encoding=jwt\">sip:sipx.webrtc.bandwidth.com:5060</SipUri></Transfer></Response>";
+
+            Assert.Equal(expected, bxml);
+        }
+
+        [Fact]
+        public void GenerateBxmlVoiceCallIdWithCustomSipUri()
+        {
+            var deviceToken = "test-device-token";
+            var voiceCallId = "c-93d6f3c0-be584596-0b74-4fa2-8015-d8ede84bd1a4";
+            var sipUri = "sip:sipx.acme.com:6112";
+            var bxml = WebRtcTransfer.GenerateBxmlVoiceCallId(deviceToken, voiceCallId, sipUri);
+
+            const string expected = "<?xml version=\"1.0\" encoding=\"UTF-8\" ?><Response><Transfer><SipUri uui=\"93d6f3c0be5845960b744fa28015d8ede84bd1a4;encoding=base64,test-device-token;encoding=jwt\">sip:sipx.acme.com:6112</SipUri></Transfer></Response>";
+
+            Assert.Equal(expected, bxml);
+        }
+    }
+}