Added AuthenticationBase.cs

websocket-sharp/Net/AuthenticationBase.cs

@@ -0,0 +1,104 @@
+#region License
+/*
+ * AuthenticationBase.cs
+ *
+ * The MIT License
+ *
+ * Copyright (c) 2014 sta.blockhead
+ *
+ * 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.
+ */
+#endregion
+
+using System;
+using System.Collections.Specialized;
+using System.Text;
+
+namespace WebSocketSharp.Net
+{
+  internal abstract class AuthenticationBase
+  {
+    #region Private Fields
+
+    private AuthenticationSchemes _scheme;
+
+    #endregion
+
+    #region Internal Fields
+
+    internal NameValueCollection Parameters;
+
+    #endregion
+
+    #region Protected Constructors
+
+    protected AuthenticationBase (AuthenticationSchemes scheme, NameValueCollection parameters)
+    {
+      _scheme = scheme;
+      Parameters = parameters;
+    }
+
+    #endregion
+
+    #region Public Properties
+
+    public AuthenticationSchemes Scheme {
+      get {
+        return _scheme;
+      }
+    }
+
+    #endregion
+
+    #region Internal Methods
+
+    internal static string CreateNonceValue ()
+    {
+      var src = new byte[16];
+      var rand = new Random ();
+      rand.NextBytes (src);
+
+      var res = new StringBuilder (32);
+      foreach (var b in src)
+        res.Append (b.ToString ("x2"));
+
+      return res.ToString ();
+    }
+
+    internal static NameValueCollection ParseParameters (string value)
+    {
+      var res = new NameValueCollection ();
+      foreach (var param in value.SplitHeaderValue (',')) {
+        var i = param.IndexOf ('=');
+        var name = i > 0 ? param.Substring (0, i).Trim () : null;
+        var val = i < 0
+                  ? param.Trim ().Trim ('"')
+                  : i < param.Length - 1
+                    ? param.Substring (i + 1).Trim ().Trim ('"')
+                    : String.Empty;
+
+        res.Add (name, val);
+      }
+
+      return res;
+    }
+
+    #endregion
+  }
+}

websocket-sharp/Net/AuthenticationChallenge.cs

@@ -32,21 +32,13 @@ using System.Text;
 
 namespace WebSocketSharp.Net
 {
-  internal class AuthenticationChallenge
+  internal class AuthenticationChallenge : AuthenticationBase
   {
-    #region Private Fields
-
-    private NameValueCollection   _parameters;
-    private AuthenticationSchemes _scheme;
-
-    #endregion
-
     #region Private Constructors
 
     private AuthenticationChallenge (AuthenticationSchemes scheme, NameValueCollection parameters)
+      : base (scheme, parameters)
     {
-      _scheme = scheme;
-      _parameters = parameters;
     }
 
     #endregion
@@ -54,23 +46,13 @@ namespace WebSocketSharp.Net
     #region Internal Constructors
 
     internal AuthenticationChallenge (AuthenticationSchemes scheme, string realm)
-      : this (scheme, new NameValueCollection ())
+      : base (scheme, new NameValueCollection ())
     {
-      _parameters["realm"] = realm;
+      Parameters["realm"] = realm;
       if (scheme == AuthenticationSchemes.Digest) {
-        _parameters["nonce"] = AuthenticationResponse.CreateNonceValue ();
+        Parameters["nonce"] = CreateNonceValue ();
-        _parameters["algorithm"] = "MD5";
+        Parameters["algorithm"] = "MD5";
-        _parameters["qop"] = "auth";
+        Parameters["qop"] = "auth";
-      }
-    }
-
-    #endregion
-
-    #region Internal Properties
-
-    internal NameValueCollection Parameters {
-      get {
-        return _parameters;
       }
     }
 
@@ -80,49 +62,43 @@ namespace WebSocketSharp.Net
 
     public string Algorithm {
       get {
-        return _parameters["algorithm"];
+        return Parameters["algorithm"];
       }
     }
 
     public string Domain {
       get {
-        return _parameters["domain"];
+        return Parameters["domain"];
       }
     }
 
     public string Nonce {
       get {
-        return _parameters["nonce"];
+        return Parameters["nonce"];
       }
     }
 
     public string Opaque {
       get {
-        return _parameters["opaque"];
+        return Parameters["opaque"];
       }
     }
 
     public string Qop {
       get {
-        return _parameters["qop"];
+        return Parameters["qop"];
       }
     }
 
     public string Realm {
       get {
-        return _parameters["realm"];
+        return Parameters["realm"];
-      }
-    }
-
-    public AuthenticationSchemes Scheme {
-      get {
-        return _scheme;
       }
     }
 
     public string Stale {
       get {
-        return _parameters["stale"];
+        return Parameters["stale"];
       }
     }
 
@@ -146,29 +122,36 @@ namespace WebSocketSharp.Net
       if (chal.Length != 2)
         return null;
 
-      var scheme = chal[0].ToLower ();
+      var schm = chal[0].ToLower ();
-      return scheme == "basic"
+      return schm == "basic"
              ? new AuthenticationChallenge (
-                 AuthenticationSchemes.Basic, AuthenticationResponse.ParseParameters (chal[1]))
+                 AuthenticationSchemes.Basic, ParseParameters (chal[1]))
-             : scheme == "digest"
+             : schm == "digest"
                ? new AuthenticationChallenge (
-                   AuthenticationSchemes.Digest, AuthenticationResponse.ParseParameters (chal[1]))
+                   AuthenticationSchemes.Digest, ParseParameters (chal[1]))
                : null;
     }
 
     internal string ToBasicString ()
     {
-      return String.Format ("Basic realm=\"{0}\"", _parameters["realm"]);
+      return String.Format ("Basic realm=\"{0}\"", Parameters["realm"]);
     }
 
     internal string ToDigestString ()
     {
-      return String.Format (
+      var output = new StringBuilder (64);
-        "Digest realm=\"{0}\", nonce=\"{1}\", algorithm={2}, qop=\"{3}\"",
+      output.AppendFormat ("Digest realm=\"{0}\"", Parameters["realm"]);
-        _parameters["realm"],
+      output.AppendFormat (", nonce=\"{0}\"", Parameters["nonce"]);
-        _parameters["nonce"],
+
-        _parameters["algorithm"],
+      var algo = Parameters["algorithm"];
-        _parameters["qop"]);
+      if (algo != null)
+        output.AppendFormat (", algorithm={0}", algo);
+
+      var qop = Parameters["qop"];
+      if (qop != null)
+        output.AppendFormat (", qop=\"{0}\"", qop);
+
+      return output.ToString ();
     }
 
     #endregion
@@ -177,9 +160,10 @@ namespace WebSocketSharp.Net
 
     public override string ToString ()
     {
-      return _scheme == AuthenticationSchemes.Basic
+      var schm = Scheme;
+      return schm == AuthenticationSchemes.Basic
              ? ToBasicString ()
-             : _scheme == AuthenticationSchemes.Digest
+             : schm == AuthenticationSchemes.Digest
                ? ToDigestString ()
                : String.Empty;
     }

websocket-sharp/Net/AuthenticationResponse.cs

@@ -38,22 +38,19 @@ using System.Text;
 
 namespace WebSocketSharp.Net
 {
-  internal class AuthenticationResponse
+  internal class AuthenticationResponse : AuthenticationBase
   {
     #region Private Fields
 
-    private uint                  _nonceCount;
+    private uint _nonceCount;
-    private NameValueCollection   _parameters;
-    private AuthenticationSchemes _scheme;
 
     #endregion
 
     #region Private Constructors
 
     private AuthenticationResponse (AuthenticationSchemes scheme, NameValueCollection parameters)
+      : base (scheme, parameters)
     {
-      _scheme = scheme;
-      _parameters = parameters;
     }
 
     #endregion
@@ -76,11 +73,11 @@ namespace WebSocketSharp.Net
       NameValueCollection parameters,
       NetworkCredential credentials,
       uint nonceCount)
-      : this (scheme, parameters)
+      : base (scheme, parameters)
     {
-      _parameters["username"] = credentials.UserName;
+      Parameters["username"] = credentials.UserName;
-      _parameters["password"] = credentials.Password;
+      Parameters["password"] = credentials.Password;
-      _parameters["uri"] = credentials.Domain;
+      Parameters["uri"] = credentials.Domain;
       _nonceCount = nonceCount;
       if (scheme == AuthenticationSchemes.Digest)
         initAsDigest ();
@@ -98,85 +95,73 @@ namespace WebSocketSharp.Net
       }
     }
 
-    internal NameValueCollection Parameters {
-      get {
-        return _parameters;
-      }
-    }
-
     #endregion
 
     #region Public Properties
 
     public string Algorithm {
       get {
-        return _parameters["algorithm"];
+        return Parameters["algorithm"];
       }
     }
 
     public string Cnonce {
       get {
-        return _parameters["cnonce"];
+        return Parameters["cnonce"];
       }
     }
 
     public string Nc {
       get {
-        return _parameters["nc"];
+        return Parameters["nc"];
       }
     }
 
     public string Nonce {
       get {
-        return _parameters["nonce"];
+        return Parameters["nonce"];
       }
     }
 
     public string Opaque {
       get {
-        return _parameters["opaque"];
+        return Parameters["opaque"];
       }
     }
 
     public string Password {
       get {
-        return _parameters["password"];
+        return Parameters["password"];
       }
     }
 
     public string Qop {
       get {
-        return _parameters["qop"];
+        return Parameters["qop"];
       }
     }
 
     public string Realm {
       get {
-        return _parameters["realm"];
+        return Parameters["realm"];
       }
     }
 
     public string Response {
       get {
-        return _parameters["response"];
+        return Parameters["response"];
-      }
-    }
-
-    public AuthenticationSchemes Scheme {
-      get {
-        return _scheme;
       }
     }
 
     public string Uri {
       get {
-        return _parameters["uri"];
+        return Parameters["uri"];
       }
     }
 
     public string UserName {
       get {
-        return _parameters["username"];
+        return Parameters["username"];
       }
     }
 
@@ -203,7 +188,7 @@ namespace WebSocketSharp.Net
 
     private static string createA2 (string method, string uri, string entity)
     {
-      return String.Format ("{0}:{1}:{2}", method, uri, entity);
+      return String.Format ("{0}:{1}:{2}", method, uri, hash (entity));
     }
 
     private static string hash (string value)
@@ -221,55 +206,42 @@ namespace WebSocketSharp.Net
 
     private void initAsDigest ()
     {
-      var qops = _parameters["qop"];
+      var qops = Parameters["qop"];
       if (qops != null) {
         if (qops.Split (',').Contains (qop => qop.Trim ().ToLower () == "auth")) {
-          _parameters["qop"] = "auth";
+          Parameters["qop"] = "auth";
-          _parameters["nc"] = String.Format ("{0:x8}", ++_nonceCount);
+          Parameters["nc"] = String.Format ("{0:x8}", ++_nonceCount);
-          _parameters["cnonce"] = CreateNonceValue ();
+          Parameters["cnonce"] = CreateNonceValue ();
         }
         else {
-          _parameters["qop"] = null;
+          Parameters["qop"] = null;
         }
       }
 
-      _parameters["method"] = "GET";
+      Parameters["method"] = "GET";
-      _parameters["response"] = CreateRequestDigest (_parameters);
+      Parameters["response"] = CreateRequestDigest (Parameters);
     }
 
     #endregion
 
     #region Internal Methods
 
-    internal static string CreateNonceValue ()
-    {
-      var src = new byte[16];
-      var rand = new Random ();
-      rand.NextBytes (src);
-
-      var res = new StringBuilder (32);
-      foreach (var b in src)
-        res.Append (b.ToString ("x2"));
-
-      return res.ToString ();
-    }
-
     internal static string CreateRequestDigest (NameValueCollection parameters)
     {
-      var username = parameters["username"];
+      var user = parameters["username"];
-      var password = parameters["password"];
+      var pass = parameters["password"];
       var realm = parameters["realm"];
       var nonce = parameters["nonce"];
       var uri = parameters["uri"];
-      var algorithm = parameters["algorithm"];
+      var algo = parameters["algorithm"];
       var qop = parameters["qop"];
       var nc = parameters["nc"];
       var cnonce = parameters["cnonce"];
       var method = parameters["method"];
 
-      var a1 = algorithm != null && algorithm.ToLower () == "md5-sess"
+      var a1 = algo != null && algo.ToLower () == "md5-sess"
-               ? createA1 (username, password, realm, nonce, cnonce)
+               ? createA1 (user, pass, realm, nonce, cnonce)
-               : createA1 (username, password, realm);
+               : createA1 (user, pass, realm);
 
       var a2 = qop != null && qop.ToLower () == "auth-int"
                ? createA2 (method, uri, parameters["entity"])
@@ -290,11 +262,11 @@ namespace WebSocketSharp.Net
         if (cred.Length != 2)
           return null;
 
-        var scheme = cred[0].ToLower ();
+        var schm = cred[0].ToLower ();
-        return scheme == "basic"
+        return schm == "basic"
                ? new AuthenticationResponse (
                    AuthenticationSchemes.Basic, ParseBasicCredentials (cred[1]))
-               : scheme == "digest"
+               : schm == "digest"
                  ? new AuthenticationResponse (
                      AuthenticationSchemes.Digest, ParseParameters (cred[1]))
                  : null;
@@ -327,27 +299,9 @@ namespace WebSocketSharp.Net
       return res;
     }
 
-    internal static NameValueCollection ParseParameters (string value)
-    {
-      var res = new NameValueCollection ();
-      foreach (var param in value.SplitHeaderValue (',')) {
-        var i = param.IndexOf ('=');
-        var name = i > 0 ? param.Substring (0, i).Trim () : null;
-        var val = i < 0
-                  ? param.Trim ().Trim ('"')
-                  : i < param.Length - 1
-                    ? param.Substring (i + 1).Trim ().Trim ('"')
-                    : String.Empty;
-
-        res.Add (name, val);
-      }
-
-      return res;
-    }
-
     internal string ToBasicString ()
     {
-      var userPass = String.Format ("{0}:{1}", _parameters["username"], _parameters["password"]);
+      var userPass = String.Format ("{0}:{1}", Parameters["username"], Parameters["password"]);
       var cred = Convert.ToBase64String (Encoding.UTF8.GetBytes (userPass));
 
       return "Basic " + cred;
@@ -356,25 +310,25 @@ namespace WebSocketSharp.Net
     internal string ToDigestString ()
     {
       var res = new StringBuilder (64);
-      res.AppendFormat ("username=\"{0}\"", _parameters["username"]);
+      res.AppendFormat ("username=\"{0}\"", Parameters["username"]);
-      res.AppendFormat (", realm=\"{0}\"", _parameters["realm"]);
+      res.AppendFormat (", realm=\"{0}\"", Parameters["realm"]);
-      res.AppendFormat (", nonce=\"{0}\"", _parameters["nonce"]);
+      res.AppendFormat (", nonce=\"{0}\"", Parameters["nonce"]);
-      res.AppendFormat (", uri=\"{0}\"", _parameters["uri"]);
+      res.AppendFormat (", uri=\"{0}\"", Parameters["uri"]);
 
-      var algorithm = _parameters["algorithm"];
+      var algo = Parameters["algorithm"];
-      if (algorithm != null)
+      if (algo != null)
-        res.AppendFormat (", algorithm={0}", algorithm);
+        res.AppendFormat (", algorithm={0}", algo);
 
-      res.AppendFormat (", response=\"{0}\"", _parameters["response"]);
+      res.AppendFormat (", response=\"{0}\"", Parameters["response"]);
 
-      var qop = _parameters["qop"];
+      var qop = Parameters["qop"];
       if (qop != null) {
         res.AppendFormat (", qop={0}", qop);
-        res.AppendFormat (", nc={0}", _parameters["nc"]);
+        res.AppendFormat (", nc={0}", Parameters["nc"]);
-        res.AppendFormat (", cnonce=\"{0}\"", _parameters["cnonce"]);
+        res.AppendFormat (", cnonce=\"{0}\"", Parameters["cnonce"]);
       }
 
-      var opaque = _parameters["opaque"];
+      var opaque = Parameters["opaque"];
       if (opaque != null)
         res.AppendFormat (", opaque=\"{0}\"", opaque);
 
@@ -387,18 +341,20 @@ namespace WebSocketSharp.Net
 
     public IIdentity ToIdentity ()
     {
-      return _scheme == AuthenticationSchemes.Basic
+      var schm = Scheme;
-             ? new HttpBasicIdentity (_parameters["username"], _parameters["password"]) as IIdentity
+      return schm == AuthenticationSchemes.Basic
-             : _scheme == AuthenticationSchemes.Digest
+             ? new HttpBasicIdentity (Parameters["username"], Parameters["password"]) as IIdentity
-               ? new HttpDigestIdentity (_parameters)
+             : schm == AuthenticationSchemes.Digest
+               ? new HttpDigestIdentity (Parameters)
                : null;
     }
 
     public override string ToString ()
     {
-      return _scheme == AuthenticationSchemes.Basic
+      var schm = Scheme;
+      return schm == AuthenticationSchemes.Basic
              ? ToBasicString ()
-             : _scheme == AuthenticationSchemes.Digest
+             : schm == AuthenticationSchemes.Digest
                ? ToDigestString ()
                : String.Empty;
     }

websocket-sharp/websocket-sharp.csproj

@@ -135,6 +135,7 @@
     <Compile Include="WebSocketFrame.cs" />
     <Compile Include="Net\AuthenticationChallenge.cs" />
     <Compile Include="Net\AuthenticationResponse.cs" />
+    <Compile Include="Net\AuthenticationBase.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>