2 // System.Net.WebConnectionGroup
5 // Gonzalo Paniagua Javier (gonzalo@ximian.com)
7 // (C) 2003 Ximian, Inc (http://www.ximian.com)
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 using System.Collections;
33 using System.Net.Configuration;
34 using System.Net.Sockets;
38 class WebConnectionGroup
42 ArrayList connections;
46 public WebConnectionGroup (ServicePoint sPoint, string name)
50 connections = new ArrayList (1);
54 public WebConnection GetConnection (HttpWebRequest request)
56 WebConnection cnc = null;
58 WeakReference cncRef = null;
60 // Remove disposed connections
61 int end = connections.Count;
62 ArrayList removed = null;
63 for (int i = 0; i < end; i++) {
64 cncRef = (WeakReference) connections [i];
65 cnc = cncRef.Target as WebConnection;
68 removed = new ArrayList (1);
74 if (removed != null) {
75 for (int i = removed.Count - 1; i >= 0; i--)
76 connections.RemoveAt ((int) removed [i]);
79 cnc = CreateOrReuseConnection (request);
85 static void PrepareSharingNtlm (WebConnection cnc, HttpWebRequest request)
87 if (!cnc.NtlmAuthenticated)
90 bool needs_reset = false;
91 NetworkCredential cnc_cred = cnc.NtlmCredential;
92 NetworkCredential req_cred = request.Credentials.GetCredential (request.RequestUri, "NTLM");
93 if (cnc_cred.Domain != req_cred.Domain || cnc_cred.UserName != req_cred.UserName ||
94 cnc_cred.Password != req_cred.Password) {
99 bool req_sharing = request.UnsafeAuthenticatedConnectionSharing;
100 bool cnc_sharing = cnc.UnsafeAuthenticatedConnectionSharing;
101 needs_reset = (req_sharing == false || req_sharing != cnc_sharing);
105 cnc.Close (false); // closes the authenticated connection
110 WebConnection CreateOrReuseConnection (HttpWebRequest request)
114 WeakReference cncRef;
116 int count = connections.Count;
117 for (int i = 0; i < count; i++) {
118 WeakReference wr = connections [i] as WeakReference;
119 cnc = wr.Target as WebConnection;
121 connections.RemoveAt (i);
130 PrepareSharingNtlm (cnc, request);
134 if (sPoint.ConnectionLimit > count) {
135 cnc = new WebConnection (this, sPoint);
136 connections.Add (new WeakReference (cnc));
143 int idx = (count > 1) ? rnd.Next (0, count - 1) : 0;
144 cncRef = (WeakReference) connections [idx];
145 cnc = cncRef.Target as WebConnection;
147 cnc = new WebConnection (this, sPoint);
148 connections.RemoveAt (idx);
149 connections.Add (new WeakReference (cnc));
158 internal Queue Queue {
159 get { return queue; }