Improve packaging (esp. security)

[lgpl/argeo-commons.git] / security / eclipse / plugins / org.argeo.security.ui / src / main / java / org / argeo / security / ui / CurrentUser.java

diff --git a/security/eclipse/plugins/org.argeo.security.ui/src/main/java/org/argeo/security/ui/CurrentUser.java b/security/eclipse/plugins/org.argeo.security.ui/src/main/java/org/argeo/security/ui/CurrentUser.java
new file mode 100644 (file)
index 0000000..a864c3a
--- /dev/null
+++ b/security/eclipse/plugins/org.argeo.security.ui/src/main/java/org/argeo/security/ui/CurrentUser.java
@@ -0,0 +1,43 @@
+package org.argeo.security.ui;
+
+import java.security.AccessController;
+import java.security.Principal;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+
+import javax.security.auth.Subject;
+
+import org.argeo.ArgeoException;
+import org.springframework.security.Authentication;
+import org.springframework.security.GrantedAuthority;
+
+public class CurrentUser {
+       public final static String getUsername() {
+               Subject subject = getSubject();
+               if (subject == null)
+                       return null;
+               Principal principal = subject.getPrincipals().iterator().next();
+               return principal.getName();
+
+       }
+
+       public final static Set<String> roles() {
+               Principal principal = getSubject().getPrincipals().iterator().next();
+               Authentication authentication = (Authentication) principal;
+               Set<String> roles = Collections.synchronizedSet(new HashSet<String>());
+               for (GrantedAuthority ga : authentication.getAuthorities()) {
+                       roles.add(ga.getAuthority());
+               }
+               return Collections.unmodifiableSet(roles);
+       }
+
+       public final static Subject getSubject() {
+
+               Subject subject = Subject.getSubject(AccessController.getContext());
+               if (subject == null)
+                       throw new ArgeoException("Not authenticated.");
+               return subject;
+
+       }
+}