Revert "Better host parse"

This reverts commit d1e8f38767.

shadowsocks-csharp/Controller/Service/Http2Socks5.cs

@@ -378,25 +378,6 @@ namespace Shadowsocks.Controller.Service
             private int _targetPort;
             private readonly Queue<string> _headers = new Queue<string>();
 
-            private bool ParseHost(string host)
-            {
-                var locs = host.Split(':');
-                _targetHost = locs[0];
-                if (locs.Length > 1)
-                {
-                    if (!int.TryParse(locs[1], out _targetPort))
-                    {
-                        return false;
-                    }
-                }
-                else
-                {
-                    _targetPort = 80;
-                }
-
-                return true;
-            }
-
             private bool OnLineRead(string line, object state)
             {
                 if (_closed)
@@ -422,9 +403,19 @@ namespace Shadowsocks.Controller.Service
                         {
                             _isConnect = true;
 
-                            if (!ParseHost(m.Groups[2].Value))
+                            var location = m.Groups[2].Value;
+                            var locs = location.Split(':');
+                            _targetHost = locs[0];
+                            if (locs.Length > 1)
                             {
-                                throw new Exception("Bad http header: " + line);
+                                if (!int.TryParse(locs[1], out _targetPort))
+                                {
+                                    throw new Exception("Bad http header: " + line);
+                                }
+                            }
+                            else
+                            {
+                                _targetPort = 80;
                             }
                         }
                     }
@@ -440,9 +431,19 @@ namespace Shadowsocks.Controller.Service
                     {
                         if (line.StartsWith("Host: "))
                         {
-                            if (!ParseHost(line.Substring(6).Trim()))
+                            var location = line.Substring(6).Trim();
+                            var locs = location.Split(':');
+                            _targetHost = locs[0];
+                            if (locs.Length > 1)
+                            {
+                                if (!int.TryParse(locs[1], out _targetPort))
+                                {
+                                    throw new Exception("Bad http header: " + line);
+                                }
+                            }
+                            else
                             {
-                                throw new Exception("Bad http header: " + line);
+                                _targetPort = 80;
                             }
                         }
                     }