1 files changed, 54 insertions, 0 deletions
diff --git a/src/server/Utilities/ExtensionMethods.cs b/src/server/Utilities/ExtensionMethods.cs
new file mode 100644
index 0000000..d6bce94
--- /dev/null
+++ b/src/server/Utilities/ExtensionMethods.cs
@@ -0,0 +1,54 @@
+using System;
+using System.Linq;
+using System.Security.Claims;
+using System.Security.Principal;
+
+namespace Dough.Utilities
+{
+    public static class ExtentionMethods
+    {
+        public static Guid ToGuidOrDefault(this string value)
+        {
+            if (value.IsMissing()) return default;
+            try
+            {
+                return new Guid(value);
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine(e);
+                return default;
+            }
+        }
+
+        public static DateTime ToDateTimeOrDefault(this string value)
+        {
+            if (value.IsMissing()) return default;
+            try
+            {
+                return DateTime.Parse(value);
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine(e);
+                return default;
+            }
+        }
+
+        public static bool IsMissing(this string value) => string.IsNullOrWhiteSpace(value);
+        public static bool IsPresent(this string value) => !value.IsMissing();
+
+        public static bool IsValidUrl(this string value)
+        {
+            return Uri.TryCreate(value, UriKind.Absolute, out var uriResult)
+                   && (uriResult.Scheme == Uri.UriSchemeHttp || uriResult.Scheme == Uri.UriSchemeHttps);
+        }
+
+        public static string GetClaimValueOrDefault(this IPrincipal currentPrincipal, string claimName)
+        {
+            var identity = currentPrincipal.Identity as ClaimsIdentity;
+            var claim = identity?.Claims.SingleOrDefault(c => c.Type == claimName);
+            return claim?.Value;
+        }
+    }
+}