152 lines
3.5 KiB
C#
152 lines
3.5 KiB
C#
#region License
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/*
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* AuthenticationBase.cs
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*
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* The MIT License
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*
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* Copyright (c) 2014 sta.blockhead
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* 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, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#endregion
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using System;
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using System.Collections.Specialized;
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using System.Text;
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namespace WebSocketSharp.Net
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{
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internal abstract class AuthenticationBase
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{
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#region Private Fields
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private AuthenticationSchemes _scheme;
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#endregion
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#region Internal Fields
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internal NameValueCollection Parameters;
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#endregion
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#region Protected Constructors
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protected AuthenticationBase (AuthenticationSchemes scheme, NameValueCollection parameters)
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{
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_scheme = scheme;
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Parameters = parameters;
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}
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#endregion
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#region Public Properties
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public string Algorithm {
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get {
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return Parameters["algorithm"];
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}
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}
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public string Nonce {
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get {
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return Parameters["nonce"];
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}
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}
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public string Opaque {
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get {
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return Parameters["opaque"];
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}
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}
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public string Qop {
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get {
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return Parameters["qop"];
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}
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}
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public string Realm {
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get {
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return Parameters["realm"];
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}
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}
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public AuthenticationSchemes Scheme {
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get {
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return _scheme;
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}
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}
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#endregion
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#region Internal Methods
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internal static string CreateNonceValue ()
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{
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var src = new byte[16];
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var rand = new Random ();
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rand.NextBytes (src);
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var res = new StringBuilder (32);
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foreach (var b in src)
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res.Append (b.ToString ("x2"));
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return res.ToString ();
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}
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internal static NameValueCollection ParseParameters (string value)
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{
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var res = new NameValueCollection ();
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foreach (var param in value.SplitHeaderValue (',')) {
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var i = param.IndexOf ('=');
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var name = i > 0 ? param.Substring (0, i).Trim () : null;
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var val = i < 0
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? param.Trim ().Trim ('"')
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: i < param.Length - 1
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? param.Substring (i + 1).Trim ().Trim ('"')
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: String.Empty;
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res.Add (name, val);
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}
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return res;
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}
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internal abstract string ToBasicString ();
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internal abstract string ToDigestString ();
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#endregion
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#region Public Methods
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public override string ToString ()
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{
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return _scheme == AuthenticationSchemes.Basic
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? ToBasicString ()
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: _scheme == AuthenticationSchemes.Digest
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? ToDigestString ()
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: String.Empty;
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}
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#endregion
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}
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}
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