1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
//
// SvcHttpHandler.cs
//
// Author:
// Ankit Jain <jankit@novell.com>
// Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2006,2009-2010 Novell, Inc. http://www.novell.com
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Web;
using System.Threading;
using System.ServiceModel;
using System.ServiceModel.Activation;
using System.ServiceModel.Channels.Http;
using System.ServiceModel.Configuration;
using System.ServiceModel.Description;
namespace System.ServiceModel.Channels
{
internal class SvcHttpHandler : IHttpHandler
{
internal static SvcHttpHandler Current;
static object type_lock = new object ();
Type type;
Type factory_type;
string path;
ServiceHostBase host;
Dictionary<HttpContext,ManualResetEvent> wcf_wait_handles = new Dictionary<HttpContext,ManualResetEvent> ();
int close_state;
public SvcHttpHandler (Type type, Type factoryType, string path)
{
this.type = type;
this.factory_type = factoryType;
this.path = path;
}
public bool IsReusable
{
get { return true; }
}
public ServiceHostBase Host {
get { return host; }
}
public void ProcessRequest (HttpContext context)
{
EnsureServiceHost ();
var table = HttpListenerManagerTable.GetOrCreate (host);
var manager = table.GetOrCreateManager (context.Request.Url, null);
if (manager == null)
manager = table.GetOrCreateManager (host.BaseAddresses [0], null);
var wait = new ManualResetEvent (false);
wcf_wait_handles [context] = wait;
manager.ProcessNewContext (new System.ServiceModel.Channels.Http.AspNetHttpContextInfo (this, context));
// This method must not return until the RequestContext
// explicitly finishes replying. Otherwise xsp will
// close the connection after this method call.
wait.WaitOne ();
}
public void EndHttpRequest (HttpContext context)
{
ManualResetEvent wait;
if (!wcf_wait_handles.TryGetValue (context, out wait))
return;
wcf_wait_handles.Remove (context);
if (wait != null)
wait.Set ();
}
// called from SvcHttpHandlerFactory's remove callback (i.e.
// unloading asp.net). It closes ServiceHost, then the host
// in turn closes the listener and the channels it opened.
// The channel listener calls CloseServiceChannel() to stop
// accepting further requests on its shutdown.
public void Close ()
{
host.Close ();
host = null;
}
void EnsureServiceHost ()
{
lock (type_lock) {
Current = this;
try {
EnsureServiceHostCore ();
} finally {
Current = null;
}
}
}
void EnsureServiceHostCore ()
{
if (host != null)
return;
//ServiceHost for this not created yet
var baseUri = new Uri (new Uri (HttpContext.Current.Request.Url.GetLeftPart (UriPartial.Authority)), path);
// if (factory_type != null) {
// host = ((ServiceHostFactory) Activator.CreateInstance (factory_type)).CreateServiceHost (type, new Uri [] {baseUri});
// }
// else
host = new ServiceHost (type, baseUri);
host.Extensions.Add (new VirtualPathExtension (baseUri.AbsolutePath));
host.Open ();
}
}
}
|
