#467 Pass context to authentication func

Author: justcoding121

Titanium.Web.Proxy/ProxyAuthorizationHandler.cs

@@ -98,7 +98,7 @@ private async Task<bool> authenticateUserBasic(SessionEventArgsBase session, str
 
             string username = decoded.Substring(0, colonIndex);
             string password = decoded.Substring(colonIndex + 1);
-            bool authenticated = await ProxyBasicAuthenticateFunc(username, password);
+            bool authenticated = await ProxyBasicAuthenticateFunc(session, username, password);
             if (!authenticated)
             {
                 session.WebSession.Response = createAuthentication407Response("Proxy Authentication Invalid");

Titanium.Web.Proxy/ProxyServer.cs

@@ -267,7 +267,7 @@ public ExceptionHandler ExceptionFunc
         ///     Parameters are username and password as provided by client.
         ///     Should return true for successful authentication.
         /// </summary>
-        public Func<string, string, Task<bool>> ProxyBasicAuthenticateFunc { get; set; }
+        public Func<SessionEventArgsBase, string, string, Task<bool>> ProxyBasicAuthenticateFunc { get; set; }
 
         /// <summary>
         ///     A pluggable callback to authenticate clients by scheme instead of requiring basic authentication through ProxyBasicAuthenticateFunc.