From e258540edb22f348d292135756bb3aa7cb91383d Mon Sep 17 00:00:00 2001
From: Harald Wolff <haraldwolff@skyoffice>
Date: Thu, 4 Apr 2019 19:34:21 +0200
Subject: [PATCH] WIP

---
 SNMPInterface.cs | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/SNMPInterface.cs b/SNMPInterface.cs
index e13cc3f..2973032 100644
--- a/SNMPInterface.cs
+++ b/SNMPInterface.cs
@@ -5,6 +5,7 @@ using System.Collections.Generic;
 using System.Linq;
 using ln.snmp.endpoint;
 using System.Reflection;
+using ln.types;
 
 namespace ln.snmp
 {
@@ -12,6 +13,39 @@ namespace ln.snmp
 
     public abstract class SnmpInterface : IDisposable
     {
+        public static SnmpInterface FromURI(URI uri) => FromURI(uri, SNMPEngine.DefaultEngine);
+        public static SnmpInterface FromURI(URI uri,SNMPEngine engine)
+        {
+            if (uri.Scheme.Equals("snmp"))
+            {
+                switch (uri.Fragment)
+                {
+                    case "1":
+                        return new SnmpV1Endpoint(engine, new IPEndPoint(IPAddress.Parse(uri.Host), 161), uri.UserInfo[0]);
+                    case "2":
+                        return new SnmpV2Endpoint(engine, new IPEndPoint(IPAddress.Parse(uri.Host), 161), uri.UserInfo[0]);
+                    case "3":
+                        string[] auth = uri.UserInfo;
+                        USMEndpoint endpoint = new USMEndpoint(engine, new IPEndPoint(IPAddress.Parse(uri.Host), 161));
+                        if (auth.Length > 0)
+                            endpoint.Username = auth[0];
+                        if (auth.Length > 1)
+                        {
+                            endpoint.AuthMethod = SnmpV3AuthMethod.SHA;
+                            endpoint.AuthKeyPhrase = auth[1];
+                        }
+                        if (auth.Length > 2)
+                        {
+                            endpoint.PrivMethod = SnmpV3PrivMethod.DES;
+                            endpoint.PrivKeyPhrase = auth[2];
+                        }
+                        return endpoint;
+                }
+            }
+            throw new NotSupportedException();
+        }
+
+
         public abstract SnmpVersion SnmpVersion { get; }
 
         public SnmpInterface()