wasSharpNET – Diff between revs 16 and 19

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Rev 16 Rev 19
1 /////////////////////////////////////////////////////////////////////////// 1 ///////////////////////////////////////////////////////////////////////////
2 // Copyright (C) Wizardry and Steamworks 2016 - License: GNU GPLv3 // 2 // Copyright (C) Wizardry and Steamworks 2016 - License: GNU GPLv3 //
3 // Please see: http://www.gnu.org/licenses/gpl.html for legal details, // 3 // Please see: http://www.gnu.org/licenses/gpl.html for legal details, //
4 // rights of fair usage, the disclaimer and warranty conditions. // 4 // rights of fair usage, the disclaimer and warranty conditions. //
5 /////////////////////////////////////////////////////////////////////////// 5 ///////////////////////////////////////////////////////////////////////////
6   6  
7 using System; 7 using System;
8 using System.Collections.Generic; 8 using System.Collections.Generic;
9 using System.Net; 9 using System.Net;
10 using System.Threading; 10 using System.Threading;
11   11  
12 namespace wasSharpNET.Network.HTTP 12 namespace wasSharpNET.Network.HTTP
13 { 13 {
14 public abstract class HTTPServer : IDisposable 14 public abstract class HTTPServer : IDisposable
15 { 15 {
16 private int activeRequests; 16 private int activeRequests;
17   17  
18 private HttpListener HTTPListener = new HttpListener() -  
19 { -  
20 AuthenticationSchemes = AuthenticationSchemes.None -  
21 }; 18 private HttpListener HTTPListener = null;
22   19  
23 private int processedRequests; 20 private int processedRequests;
24   21  
25 public AuthenticationSchemes AuthenticationSchemes -  
26 { -  
27 get -  
28 { -  
29 return HTTPListener.AuthenticationSchemes; -  
30 } -  
31 set -  
32 { 22 public AuthenticationSchemes AuthenticationSchemes { get; set; } =
33 HTTPListener.AuthenticationSchemes = value; -  
34 } -  
35 } 23 AuthenticationSchemes.None;
36   24  
37 public bool IsRunning => HTTPListener.IsListening; 25 public bool IsRunning => HTTPListener != null && HTTPListener.IsListening;
38   26  
39 public bool Start(IEnumerable<string> prefixes) 27 public bool Start(IEnumerable<string> prefixes)
40 { 28 {
41 // Do not start the HTTP server if it is already running. 29 HTTPListener = new HttpListener()
-   30 {
42 if (HTTPListener.IsListening) 31 AuthenticationSchemes = AuthenticationSchemes
43 return false; 32 };
44   33  
45 // Add all prefixes. 34 // Add all prefixes.
46 HTTPListener.Prefixes.Clear(); 35 HTTPListener.Prefixes.Clear();
47 foreach (var prefix in prefixes) 36 foreach (var prefix in prefixes)
48 { 37 {
49 HTTPListener.Prefixes.Add(prefix); 38 HTTPListener.Prefixes.Add(prefix);
50 } 39 }
51   40  
52 // Do not bomb if the client disconnects. 41 // Do not bomb if the client disconnects.
53 HTTPListener.IgnoreWriteExceptions = true; 42 HTTPListener.IgnoreWriteExceptions = true;
54 HTTPListener.Start(); 43 HTTPListener.Start();
55 ThreadPool.QueueUserWorkItem(Listen, new HTTPServerCallbackState(HTTPListener)); 44 ThreadPool.QueueUserWorkItem(Listen, new HTTPServerCallbackState(HTTPListener));
56 return true; 45 return true;
57 } 46 }
58   47  
59 public bool Stop() 48 public void Stop()
60 { 49 {
61 HTTPListener.Stop(); -  
62 return true; 50 HTTPListener.Stop();
63 } 51 }
64   52  
65 private void Listen(object state) 53 private void Listen(object state)
66 { 54 {
67 var callbackState = (HTTPServerCallbackState)state; 55 var callbackState = (HTTPServerCallbackState)state;
68   56  
69 while (callbackState.Listener.IsListening) 57 while (callbackState.Listener.IsListening)
70 { 58 {
71 callbackState.Listener.BeginGetContext(ContextCallback, callbackState); 59 callbackState.Listener.BeginGetContext(ContextCallback, callbackState);
72 callbackState.ContextRetrieved.WaitOne(); 60 callbackState.ContextRetrieved.WaitOne();
73 } 61 }
74 } 62 }
75   63  
76 public abstract void ProcessHTTPContext(HttpListenerContext context); 64 public abstract void ProcessHTTPContext(HttpListenerContext context);
77   65  
78 private void ContextCallback(IAsyncResult ar) 66 private void ContextCallback(IAsyncResult ar)
79 { 67 {
80 var callbackState = (HTTPServerCallbackState)ar.AsyncState; 68 var callbackState = (HTTPServerCallbackState)ar.AsyncState;
81 HttpListenerContext httpContext = null; 69 HttpListenerContext httpContext = null;
82   70  
83 Interlocked.Increment(ref processedRequests); 71 Interlocked.Increment(ref processedRequests);
84 Interlocked.Increment(ref activeRequests); 72 Interlocked.Increment(ref activeRequests);
85   73  
86 try 74 try
87 { 75 {
88 httpContext = callbackState.Listener.EndGetContext(ar); 76 httpContext = callbackState.Listener.EndGetContext(ar);
89 } 77 }
90 catch (Exception) 78 catch (Exception)
91 { 79 {
92 Interlocked.Decrement(ref activeRequests); 80 Interlocked.Decrement(ref activeRequests);
93 return; 81 return;
94 } 82 }
95 finally 83 finally
96 { 84 {
97 callbackState.ContextRetrieved.Set(); 85 callbackState.ContextRetrieved.Set();
98 } 86 }
99   87  
100 if (httpContext == null) 88 if (httpContext == null)
101 return; 89 return;
102   90  
103 try 91 try
104 { 92 {
105 ProcessHTTPContext(httpContext); 93 ProcessHTTPContext(httpContext);
106 } 94 }
107 finally 95 finally
108 { 96 {
109 Interlocked.Decrement(ref activeRequests); 97 Interlocked.Decrement(ref activeRequests);
110 } 98 }
111 } 99 }
112   100  
113 public void Dispose() 101 public void Dispose()
114 { 102 {
115 Stop(); 103 Stop();
116 HTTPListener = null; 104 HTTPListener = null;
117 } 105 }
118   106  
119 private class HTTPServerCallbackState 107 private class HTTPServerCallbackState
120 { 108 {
121 public HTTPServerCallbackState(HttpListener listener) 109 public HTTPServerCallbackState(HttpListener listener)
122 { 110 {
123 if (listener == null) 111 if (listener == null)
124 throw new ArgumentNullException("listener"); 112 throw new ArgumentNullException("listener");
125 Listener = listener; 113 Listener = listener;
126 ContextRetrieved = new AutoResetEvent(false); 114 ContextRetrieved = new AutoResetEvent(false);
127 } 115 }
128   116  
129 public HttpListener Listener { get; } 117 public HttpListener Listener { get; }
130   118  
131 public AutoResetEvent ContextRetrieved { get; } 119 public AutoResetEvent ContextRetrieved { get; }
132 } 120 }
133 } 121 }
134 } 122 }
135   123