Added validation to reject things disallowed on the current user

airsonic-main/src/main/java/org/airsonic/player/validator/UserSettingsValidator.java

@@ -29,6 +29,8 @@ import org.springframework.stereotype.Component;
 import org.springframework.validation.Errors;
 import org.springframework.validation.Validator;
 
+import javax.servlet.http.HttpServletRequest;
+
 /**
  * Validator for {@link UserSettingsController}.
  *
@@ -41,6 +43,8 @@ public class UserSettingsValidator implements Validator {
     private SecurityService securityService;
     @Autowired
     private SettingsService settingsService;
+    @Autowired
+    private HttpServletRequest request;
 
     /**
      * {@inheritDoc}
@@ -85,6 +89,16 @@ public class UserSettingsValidator implements Validator {
             errors.rejectValue("password", "usersettings.passwordnotsupportedforldap");
         }
 
+        if (securityService.getCurrentUser(request).getUsername().equals(username)) {
+            // These errors don't need translation since the option isn't exposed to the user
+            if (command.isDeleteUser()) {
+                errors.rejectValue("deleteUser", null, "Cannot delete the current user");
+            }
+            if (! command.isAdminRole()) {
+                errors.rejectValue("adminRole", null, "Cannot remove admin from the current user");
+            }
+        }
+
     }
 
 }

airsonic-main/src/main/webapp/WEB-INF/jsp/userSettings.jsp

@@ -66,6 +66,7 @@
             <tr style="${command.currentUser ? 'display:none' : ''}">
                 <td><form:checkbox path="adminRole" id="admin" cssClass="checkbox"/></td>
                 <td><label for="admin"><fmt:message key="usersettings.admin"/></label></td>
+                <td class="warning"><form:errors path="adminRole"/></td>
             </tr>
             <tr>
                 <td><form:checkbox path="settingsRole" id="settings" cssClass="checkbox"/></td>
@@ -141,6 +142,7 @@
             <tr>
                 <td><form:checkbox path="deleteUser" id="delete" cssClass="checkbox"/></td>
                 <td><label for="delete"><fmt:message key="usersettings.delete"/></label></td>
+                <td class="warning"><form:errors path="deleteUser"/></td>
             </tr>
         </table>
     </c:if>