1 files changed, 36 insertions, 0 deletions
diff --git a/juick-server-web/src/main/java/com/juick/server/util/UserUtils.java b/juick-server-web/src/main/java/com/juick/server/util/UserUtils.java
new file mode 100644
index 00000000..eb86370e
--- /dev/null
+++ b/juick-server-web/src/main/java/com/juick/server/util/UserUtils.java
@@ -0,0 +1,36 @@
+package com.juick.server.util;
+
+import com.juick.User;
+import com.juick.server.helpers.AnonymousUser;
+import com.juick.service.security.entities.JuickUser;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+
+/**
+ * Created by aalexeev on 11/14/16.
+ */
+public class UserUtils {
+    private UserUtils() {
+        throw new IllegalStateException();
+    }
+
+    public static Authentication getAuthentication() {
+        return SecurityContextHolder.getContext().getAuthentication();
+    }
+
+    public static Object getPrincipal(final Authentication authentication) {
+        return authentication == null ? null : authentication.getPrincipal();
+    }
+
+    public static User getCurrentUser() {
+        Object principal = getPrincipal(getAuthentication());
+
+        if (principal instanceof JuickUser)
+            return ((JuickUser) principal).getUser();
+
+        if (principal instanceof User)
+            return (User) principal;
+
+        return AnonymousUser.INSTANCE;
+    }
+}