Closes #306: Prevent deleting/renaming users/groups used in route models

docs-core/src/main/java/com/sismics/docs/core/dao/RouteModelDao.java

@@ -4,6 +4,7 @@ import com.google.common.base.Joiner;
 import com.sismics.docs.core.constant.AuditLogType;
 import com.sismics.docs.core.dao.criteria.RouteModelCriteria;
 import com.sismics.docs.core.dao.dto.RouteModelDto;
+import com.sismics.docs.core.model.jpa.File;
 import com.sismics.docs.core.model.jpa.RouteModel;
 import com.sismics.docs.core.util.AuditLogUtil;
 import com.sismics.docs.core.util.SecurityUtil;
@@ -88,6 +89,18 @@ public class RouteModelDao {
         }
     }
 
+    /**
+     * Returns the list of all route models.
+     *
+     * @return List of route models
+     */
+    @SuppressWarnings("unchecked")
+    public List<RouteModel> findAll() {
+        EntityManager em = ThreadLocalContext.get().getEntityManager();
+        Query q = em.createQuery("select r from RouteModel r where r.deleteDate is null");
+        return q.getResultList();
+    }
+
     /**
      * Deletes a route model.
      *

docs-core/src/main/java/com/sismics/docs/core/util/RoutingUtil.java

@@ -6,6 +6,7 @@ import com.sismics.docs.core.constant.AclType;
 import com.sismics.docs.core.constant.PermType;
 import com.sismics.docs.core.dao.AclDao;
 import com.sismics.docs.core.dao.DocumentDao;
+import com.sismics.docs.core.dao.RouteModelDao;
 import com.sismics.docs.core.dao.UserDao;
 import com.sismics.docs.core.dao.criteria.UserCriteria;
 import com.sismics.docs.core.dao.dto.RouteStepDto;
@@ -15,8 +16,14 @@ import com.sismics.docs.core.event.RouteStepValidateEvent;
 import com.sismics.docs.core.model.context.AppContext;
 import com.sismics.docs.core.model.jpa.Acl;
 import com.sismics.docs.core.model.jpa.Document;
+import com.sismics.docs.core.model.jpa.RouteModel;
 import com.sismics.util.context.ThreadLocalContext;
 
+import javax.json.Json;
+import javax.json.JsonArray;
+import javax.json.JsonObject;
+import javax.json.JsonReader;
+import java.io.StringReader;
 import java.util.List;
 
 /**
@@ -87,4 +94,31 @@ public class RoutingUtil {
             AppContext.getInstance().getMailEventBus().post(routeStepValidateEvent);
         }
     }
+
+    /**
+     * Find the first route model name matching a target type and name.
+     *
+     * @param targetType Target type
+     * @param targetName Target name
+     * @return Route model name or null if none is matching
+     */
+    public static String findRouteModelNameByTargetName(AclTargetType targetType, String targetName) {
+        RouteModelDao routeModelDao = new RouteModelDao();
+        List<RouteModel> routeModelList = routeModelDao.findAll();
+        for (RouteModel routeModel : routeModelList) {
+            try (JsonReader reader = Json.createReader(new StringReader(routeModel.getSteps()))) {
+                JsonArray stepsJson = reader.readArray();
+                for (int order = 0; order < stepsJson.size(); order++) {
+                    JsonObject step = stepsJson.getJsonObject(order);
+                    JsonObject target = step.getJsonObject("target");
+                    AclTargetType routeTargetType = AclTargetType.valueOf(target.getString("type"));
+                    String routeTargetName = target.getString("name");
+                    if (targetType == routeTargetType && targetName.equals(routeTargetName)) {
+                        return routeModel.getName();
+                    }
+                }
+            }
+        }
+        return null;
+    }
 }

docs-web/src/main/java/com/sismics/docs/rest/resource/GroupResource.java

@@ -2,6 +2,7 @@ package com.sismics.docs.rest.resource;
 
 import com.google.common.base.Strings;
 import com.google.common.collect.Sets;
+import com.sismics.docs.core.constant.AclTargetType;
 import com.sismics.docs.core.dao.GroupDao;
 import com.sismics.docs.core.dao.RoleBaseFunctionDao;
 import com.sismics.docs.core.dao.UserDao;
@@ -12,6 +13,7 @@ import com.sismics.docs.core.dao.dto.UserDto;
 import com.sismics.docs.core.model.jpa.Group;
 import com.sismics.docs.core.model.jpa.User;
 import com.sismics.docs.core.model.jpa.UserGroup;
+import com.sismics.docs.core.util.RoutingUtil;
 import com.sismics.docs.core.util.jpa.SortCriteria;
 import com.sismics.docs.rest.constant.BaseFunction;
 import com.sismics.rest.exception.ClientException;
@@ -149,6 +151,14 @@ public class GroupResource extends BaseResource {
             parentId = parentGroup.getId();
         }
 
+        // Check that this group is not used in any workflow in case of renaming
+        if (!name.equals(groupName)) {
+            String routeModelName = RoutingUtil.findRouteModelNameByTargetName(AclTargetType.GROUP, groupName);
+            if (routeModelName != null) {
+                throw new ClientException("GroupUsedInRouteModel", routeModelName);
+            }
+        }
+        
         // Update the group
         groupDao.update(group.setName(name)
                 .setParentId(parentId), principal.getId());
@@ -198,6 +208,12 @@ public class GroupResource extends BaseResource {
             }
         }
 
+        // Check that this group is not used in any workflow
+        String routeModelName = RoutingUtil.findRouteModelNameByTargetName(AclTargetType.GROUP, groupName);
+        if (routeModelName != null) {
+            throw new ClientException("GroupUsedInRouteModel", routeModelName);
+        }
+
         // Delete the group
         groupDao.delete(group.getId(), principal.getId());
         

docs-web/src/main/java/com/sismics/docs/rest/resource/UserResource.java

@@ -2,6 +2,7 @@ package com.sismics.docs.rest.resource;
 
 import com.google.common.base.Strings;
 import com.google.common.collect.Sets;
+import com.sismics.docs.core.constant.AclTargetType;
 import com.sismics.docs.core.constant.ConfigType;
 import com.sismics.docs.core.constant.Constants;
 import com.sismics.docs.core.dao.*;
@@ -15,6 +16,7 @@ import com.sismics.docs.core.event.PasswordLostEvent;
 import com.sismics.docs.core.model.context.AppContext;
 import com.sismics.docs.core.model.jpa.*;
 import com.sismics.docs.core.util.ConfigUtil;
+import com.sismics.docs.core.util.RoutingUtil;
 import com.sismics.docs.core.util.authentication.AuthenticationUtil;
 import com.sismics.docs.core.util.jpa.SortCriteria;
 import com.sismics.docs.rest.constant.BaseFunction;
@@ -450,6 +452,12 @@ public class UserResource extends BaseResource {
             throw new ClientException("ForbiddenError", "This user cannot be deleted");
         }
 
+        // Check that this user is not used in any workflow
+        String routeModelName = RoutingUtil.findRouteModelNameByTargetName(AclTargetType.USER, principal.getName());
+        if (routeModelName != null) {
+            throw new ClientException("UserUsedInRouteModel", routeModelName);
+        }
+        
         // Find linked data
         DocumentDao documentDao = new DocumentDao();
         List<Document> documentList = documentDao.findByUserId(principal.getId());
@@ -512,7 +520,7 @@ public class UserResource extends BaseResource {
             throw new ClientException("ForbiddenError", "The guest user cannot be deleted");
         }
 
-        // Check if the user exists
+        // Check that the user exists
         UserDao userDao = new UserDao();
         User user = userDao.getActiveByUsername(username);
         if (user == null) {
@@ -526,6 +534,12 @@ public class UserResource extends BaseResource {
             throw new ClientException("ForbiddenError", "The admin user cannot be deleted");
         }
 
+        // Check that this user is not used in any workflow
+        String routeModelName = RoutingUtil.findRouteModelNameByTargetName(AclTargetType.USER, username);
+        if (routeModelName != null) {
+            throw new ClientException("UserUsedInRouteModel", routeModelName);
+        }
+        
         // Find linked data
         DocumentDao documentDao = new DocumentDao();
         List<Document> documentList = documentDao.findByUserId(user.getId());

docs-web/src/main/webapp/src/app/docs/controller/settings/SettingsGroupEdit.js

@@ -51,6 +51,11 @@ angular.module('docs').controller('SettingsGroupEdit', function($scope, $dialog,
         var msg = $translate.instant('settings.group.edit.edit_group_failed_message');
         var btns = [{result: 'ok', label: $translate.instant('ok'), cssClass: 'btn-primary'}];
         $dialog.messageBox(title, msg, btns);
+      } else if (e.data.type === 'GroupUsedInRouteModel') {
+        var title = $translate.instant('settings.group.edit.group_used_title');
+        var msg = $translate.instant('settings.group.edit.group_used_message', { name: e.data.message });
+        var btns = [{result: 'ok', label: $translate.instant('ok'), cssClass: 'btn-primary'}];
+        $dialog.messageBox(title, msg, btns);
       }
     });
   };
@@ -71,8 +76,13 @@ angular.module('docs').controller('SettingsGroupEdit', function($scope, $dialog,
         Restangular.one('group', $stateParams.name).remove().then(function() {
           $scope.loadGroups();
           $state.go('settings.group');
-        }, function() {
+        }, function(e) {
-          $state.go('settings.group');
+          if (e.data.type === 'GroupUsedInRouteModel') {
+            var title = $translate.instant('settings.group.edit.group_used_title');
+            var msg = $translate.instant('settings.group.edit.group_used_message', { name: e.data.message });
+            var btns = [{result: 'ok', label: $translate.instant('ok'), cssClass: 'btn-primary'}];
+            $dialog.messageBox(title, msg, btns);
+          }
         });
       }
     });

docs-web/src/main/webapp/src/app/docs/controller/settings/SettingsUserEdit.js

@@ -70,8 +70,13 @@ angular.module('docs').controller('SettingsUserEdit', function($scope, $dialog,
         Restangular.one('user', $stateParams.username).remove().then(function () {
           $scope.loadUsers();
           $state.go('settings.user');
-        }, function() {
+        }, function(e) {
-          $state.go('settings.user');
+          if (e.data.type === 'UserUsedInRouteModel') {
+            var title = $translate.instant('settings.user.edit.user_used_title');
+            var msg = $translate.instant('settings.user.edit.user_used_message', { name: e.data.message });
+            var btns = [{result: 'ok', label: $translate.instant('ok'), cssClass: 'btn-primary'}];
+            $dialog.messageBox(title, msg, btns);
+          }
         });
       }
     });

docs-web/src/main/webapp/src/locale/en.json

@@ -288,6 +288,8 @@
       "edit": {
         "delete_user_title": "Delete user",
         "delete_user_message": "Do you really want to delete this user? All associated documents, files and tags will be deleted",
+        "user_used_title": "User in use",
+        "user_used_message": "This user is used in the workflow \"{{ name }}\"",
         "edit_user_failed_title": "User already exists",
         "edit_user_failed_message": "This username is already taken by another user",
         "edit_user_title": "Edit \"{{ username }}\"",
@@ -363,6 +365,8 @@
         "delete_group_message": "Do you really want to delete this group?",
         "edit_group_failed_title": "Group already exists",
         "edit_group_failed_message": "This group name is already taken by another group",
+        "group_used_title": "Group in use",
+        "group_used_message": "This group is used in the workflow \"{{ name }}\"",
         "edit_group_title": "Edit \"{{ name }}\"",
         "add_group_title": "Add a group",
         "name": "Name",

docs-web/src/main/webapp/src/locale/fr.json

@@ -325,7 +325,7 @@
         "type_approve": "Approbation",
         "type_validate": "Validation",
         "target": "Assigné à",
-        "target_help": "<strong>Approbation :</strong> Accepter ou rejeter l'étape de workflow<br/><strong>Validation :</strong> Examiner et poursuivre le workflow",
+        "target_help": "<strong>Approbation :</strong> Accepter ou rejeter l\\'étape de workflow<br/><strong>Validation :</strong> Examiner et poursuivre le workflow",
         "add_step": "Ajouter une étape de workflow",
         "actions": "Qu'est-ce qui se passe après?",
         "remove_action": "Supprimer l'action",