refs #741 #742: reorganize repository by application

vpd-backoffice/src/main/java/com/cloudhandson/vpdbackoffice/web/SecurityModelAdvice.java

@@ -0,0 +1,28 @@
+package com.cloudhandson.vpdbackoffice.web;
+
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ModelAttribute;
+
+@ControllerAdvice
+public class SecurityModelAdvice {
+
+  @ModelAttribute("canMutate")
+  public boolean canMutate() {
+    Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
+    if (authentication == null || !authentication.isAuthenticated()) {
+      return false;
+    }
+    return authentication.getAuthorities().stream()
+        .map(GrantedAuthority::getAuthority)
+        .anyMatch("ROLE_ADMIN"::equals);
+  }
+
+  @ModelAttribute("readOnlyMode")
+  public boolean readOnlyMode() {
+    Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
+    return authentication != null && authentication.isAuthenticated() && !canMutate();
+  }
+}