Merge bug23837 (ipv6 support)

Author: Simon MacMullen

projects/client/RabbitMQ.Client/src/client/api/AmqpTcpEndpoint.cs

@@ -40,6 +40,7 @@
 
 using System;
 using System.Collections;
+using System.Text.RegularExpressions;
 using RabbitMQ.Client.Impl;
 
 namespace RabbitMQ.Client
@@ -243,9 +244,24 @@ public override int GetHashCode()
         /// entire string is used as the hostname, and the port-number
         /// is set to -1 (meaning the default number for the protocol
         /// variant specified).
+        /// Hostnames provided as IPv6 must appear in square brackets ([]).
         ///</remarks>
         public static AmqpTcpEndpoint Parse(IProtocol protocol, string address) {
-            int index = address.IndexOf(':');
+            Match match = Regex.Match(address, @"^\s*\[([%:0-9A-Fa-f]+)\](:(.*))?\s*$");
+            if (match.Success)
+            {
+                GroupCollection groups = match.Groups;
+                int portNum = -1;
+                if (groups[2].Success)
+                {
+                    string portStr = groups[3].Value;
+                    portNum = (portStr.Length == 0) ? -1 : int.Parse(portStr);
+                }
+                return new AmqpTcpEndpoint(protocol,
+                                           match.Groups[1].Value,
+                                           portNum);
+            }
+            int index = address.LastIndexOf(':');
             if (index == -1) {
                 return new AmqpTcpEndpoint(protocol, address, -1);
             } else {

projects/client/RabbitMQ.Client/src/client/impl/SocketFrameHandler_0_9.cs

@@ -60,8 +60,24 @@ public class SocketFrameHandler_0_9 : IFrameHandler
         public SocketFrameHandler_0_9(AmqpTcpEndpoint endpoint)
         {
             m_endpoint = endpoint;
-            m_socket = new TcpClient();
-            m_socket.Connect(endpoint.HostName, endpoint.Port);
+            m_socket = null;
+            if (Socket.OSSupportsIPv6)
+            {
+                try
+                {
+                    m_socket = new TcpClient(AddressFamily.InterNetworkV6);
+                    m_socket.Connect(endpoint.HostName, endpoint.Port);
+                }
+                catch(SocketException)
+                {
+                    m_socket = null;
+                }
+            }
+            if (m_socket == null)
+            {
+                m_socket = new TcpClient(AddressFamily.InterNetwork);
+                m_socket.Connect(endpoint.HostName, endpoint.Port);
+            }
             // disable Nagle's algorithm, for more consistently low latency 
             m_socket.NoDelay = true;
 
@@ -88,12 +104,12 @@ public AmqpTcpEndpoint Endpoint
 
         public int Timeout
         {
-            set
-            {
-                if (m_socket.Connected)
-                {
-                    m_socket.ReceiveTimeout = value;
-                }
+            set
+            {
+                if (m_socket.Connected)
+                {
+                    m_socket.ReceiveTimeout = value;
+                }
             }
         }
 

projects/client/Unit/src/unit/TestAmqpTcpEndpointParsing.cs

@@ -145,5 +145,23 @@ public void TestMultipleTwoMultipleCommas()
             Assert.AreEqual("other", es[1].HostName);
             Assert.AreEqual(2345, es[1].Port);
         }
+
+        [Test]
+        public void TestIpv6WithPort()
+        {
+            AmqpTcpEndpoint e = AmqpTcpEndpoint.Parse(Protocols.DefaultProtocol, "[::1]:1234");
+            Assert.AreEqual(Protocols.DefaultProtocol, e.Protocol);
+            Assert.AreEqual("::1", e.HostName);
+            Assert.AreEqual(1234, e.Port);
+        }
+
+        [Test]
+        public void TestIpv6WithoutPort()
+        {
+            AmqpTcpEndpoint e = AmqpTcpEndpoint.Parse(Protocols.DefaultProtocol, "[::1]");
+            Assert.AreEqual(Protocols.DefaultProtocol, e.Protocol);
+            Assert.AreEqual("::1", e.HostName);
+            Assert.AreEqual(Protocols.DefaultProtocol.DefaultPort, e.Port);
+        }
     }
 }