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);
56 //TODO: what do we do with the queue? Empty it out and abort the requests?
57 //TODO: abort requests or wait for them to finish
59 WeakReference cncRef = null;
61 int end = connections.Count;
62 // ArrayList removed = null;
63 for (int i = 0; i < end; i++) {
64 cncRef = (WeakReference) connections [i];
65 WebConnection cnc = cncRef.Target as WebConnection;
74 public WebConnection GetConnection (HttpWebRequest request)
76 WebConnection cnc = null;
78 WeakReference cncRef = null;
80 // Remove disposed connections
81 int end = connections.Count;
82 ArrayList removed = null;
83 for (int i = 0; i < end; i++) {
84 cncRef = (WeakReference) connections [i];
85 cnc = cncRef.Target as WebConnection;
88 removed = new ArrayList (1);
94 if (removed != null) {
95 for (int i = removed.Count - 1; i >= 0; i--)
96 connections.RemoveAt ((int) removed [i]);
99 cnc = CreateOrReuseConnection (request);
105 static void PrepareSharingNtlm (WebConnection cnc, HttpWebRequest request)
107 if (!cnc.NtlmAuthenticated)
110 bool needs_reset = false;
111 NetworkCredential cnc_cred = cnc.NtlmCredential;
112 NetworkCredential req_cred = request.Credentials.GetCredential (request.RequestUri, "NTLM");
113 if (cnc_cred.Domain != req_cred.Domain || cnc_cred.UserName != req_cred.UserName ||
114 cnc_cred.Password != req_cred.Password) {
119 bool req_sharing = request.UnsafeAuthenticatedConnectionSharing;
120 bool cnc_sharing = cnc.UnsafeAuthenticatedConnectionSharing;
121 needs_reset = (req_sharing == false || req_sharing != cnc_sharing);
125 cnc.Close (false); // closes the authenticated connection
130 WebConnection CreateOrReuseConnection (HttpWebRequest request)
134 WeakReference cncRef;
136 int count = connections.Count;
137 for (int i = 0; i < count; i++) {
138 WeakReference wr = connections [i] as WeakReference;
139 cnc = wr.Target as WebConnection;
141 connections.RemoveAt (i);
150 PrepareSharingNtlm (cnc, request);
154 if (sPoint.ConnectionLimit > count) {
155 cnc = new WebConnection (this, sPoint);
156 connections.Add (new WeakReference (cnc));
163 int idx = (count > 1) ? rnd.Next (0, count - 1) : 0;
164 cncRef = (WeakReference) connections [idx];
165 cnc = cncRef.Target as WebConnection;
167 cnc = new WebConnection (this, sPoint);
168 connections.RemoveAt (idx);
169 connections.Add (new WeakReference (cnc));
178 internal Queue Queue {
179 get { return queue; }