Named bean for providing information about the current user

Former-commit-id: df5aef34a0

ccm-core/src/main/java/org/libreccm/ui/UserInfo.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2021 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package org.libreccm.ui;
+
+import org.libreccm.core.CoreConstants;
+import org.libreccm.security.PermissionChecker;
+import org.libreccm.security.Shiro;
+import org.libreccm.security.User;
+
+import javax.enterprise.context.RequestScoped;
+import javax.inject.Inject;
+import javax.inject.Named;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@RequestScoped
+@Named("UserInfo")
+public class UserInfo {
+
+    @Inject
+    private PermissionChecker permissionChecker;
+
+    @Inject
+    private Shiro shiro;
+
+    public String getCurrentUserName() {
+        return shiro
+            .getUser()
+            .map(User::getName)
+            .orElse("");
+    }
+
+    public boolean isAdmin() {
+        return permissionChecker.isPermitted(CoreConstants.PRIVILEGE_ADMIN);
+    }
+
+}