101 lines
3.0 KiB
C#
101 lines
3.0 KiB
C#
//
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// System.Net.BasicClient
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//
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// Authors:
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// Gonzalo Paniagua Javier (gonzalo@ximian.com)
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//
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// (C) 2003 Ximian, Inc (http://www.ximian.com)
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System.Text;
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namespace System.Net
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{
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class BasicClient : IAuthenticationModule
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{
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public Authorization Authenticate (string challenge, WebRequest webRequest, ICredentials credentials)
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{
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if (credentials == null || challenge == null)
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return null;
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string header = challenge.Trim ();
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if (header.ToLower ().IndexOf ("basic", StringComparison.Ordinal) == -1)
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return null;
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return InternalAuthenticate (webRequest, credentials);
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}
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static byte [] GetBytes (string str)
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{
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int i = str.Length;
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byte [] result = new byte [i];
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for (--i; i >= 0; i--)
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result [i] = (byte) str [i];
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return result;
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}
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static Authorization InternalAuthenticate (WebRequest webRequest, ICredentials credentials)
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{
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HttpWebRequest request = webRequest as HttpWebRequest;
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if (request == null || credentials == null)
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return null;
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NetworkCredential cred = credentials.GetCredential (request.AuthUri, "basic");
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if (cred == null)
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return null;
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string userName = cred.UserName;
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if (userName == null || userName == "")
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return null;
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string password = cred.Password;
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string domain = cred.Domain;
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byte [] bytes;
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// If domain is set, MS sends "domain\user:password".
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if (domain == null || domain == "" || domain.Trim () == "")
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bytes = GetBytes (userName + ":" + password);
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else
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bytes = GetBytes (domain + "\\" + userName + ":" + password);
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string auth = "Basic " + Convert.ToBase64String (bytes);
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return new Authorization (auth);
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}
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public Authorization PreAuthenticate (WebRequest webRequest, ICredentials credentials)
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{
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return InternalAuthenticate ( webRequest, credentials);
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}
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public string AuthenticationType {
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get { return "Basic"; }
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}
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public bool CanPreAuthenticate {
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get { return true; }
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}
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}
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}
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