[Authentication] Token validation helper

Authentication/Business/JWT/TokenManager.cs

@@ -2,6 +2,7 @@
 using System.Configuration;
 using System.IdentityModel.Tokens;
 using System.Security.Claims;
+using System.ServiceModel.Security.Tokens;
 
 namespace iiie.Authentication.Business.JWT
 {
@@ -47,5 +48,30 @@ namespace iiie.Authentication.Business.JWT
             JwtSecurityTokenHandler jh = new JwtSecurityTokenHandler();
             return jh.WriteToken(jst);
         }
+
+        public static ClaimsPrincipal ParseToken(string token)
+        {
+            JwtSecurityTokenHandler tokenHandler = new JwtSecurityTokenHandler
+            {
+                Configuration = new SecurityTokenHandlerConfiguration()
+                {
+                    MaxClockSkew = new TimeSpan(0, 1, 0)
+                }
+            };
+
+            var stringValidator = ConfigurationManager.AppSettings["StringValidator"];
+            TokenValidationParameters validationParameters = new TokenValidationParameters()
+            {
+                RequireSignedTokens = true,
+                RequireExpirationTime = true,
+                ValidAudience = stringValidator,
+                ValidateIssuerSigningKey = true,
+                ValidIssuer = "urn:" + stringValidator,
+                IssuerSigningToken = new BinarySecretSecurityToken(Convert.FromBase64String(ConfigurationManager.AppSettings["CredentialKey"]))
+            };
+
+            SecurityToken validateToken;
+            return tokenHandler.ValidateToken(token, validationParameters, out validateToken);
+        }
     }
 }

Authentication/Business/JWT/TokenValidationHandler.cs

@@ -62,27 +62,7 @@ namespace iiie.Authentication.Business.JWT
 
             try
             {
-                JwtSecurityTokenHandler tokenHandler = new JwtSecurityTokenHandler
-                {
-                    Configuration = new SecurityTokenHandlerConfiguration()
-                    {
-                        MaxClockSkew = new TimeSpan(0, 1, 0)
-                    }
-                };
-
-                var stringValidator = ConfigurationManager.AppSettings["StringValidator"];
-                TokenValidationParameters validationParameters = new TokenValidationParameters()
-                {
-                    RequireSignedTokens = true,
-                    RequireExpirationTime = true,
-                    ValidAudience = stringValidator,
-                    ValidateIssuerSigningKey = true,
-                    ValidIssuer = "urn:" + stringValidator,
-                    IssuerSigningToken = new BinarySecretSecurityToken(Convert.FromBase64String(ConfigurationManager.AppSettings["CredentialKey"]))
-                };
-
-                SecurityToken validateToken;
-                ClaimsPrincipal claim = tokenHandler.ValidateToken(token, validationParameters, out validateToken);
+                var claim = TokenManager.ParseToken(token);
                 Thread.CurrentPrincipal = claim;
 
                 var name = ((ClaimsIdentity)claim.Identity).Claims.FirstOrDefault(x => x.Type == ClaimTypes.Name);