[WIP] Read and update roles & permissions using database

packages/strapi-plugin-users-permissions/admin/src/components/ListRow/index.js

@@ -27,10 +27,10 @@ class ListRow extends React.Component { // eslint-disable-line react/prefer-stat
 
   // Roles that can't be deleted && modified
   // Don't delete this line
-  protectedRoleIDs = ['0'];
+  protectedRoleIDs = ['root'];
 
   // Roles that can't be deleted;
-  undeletableIDs = ['1'];
+  undeletableIDs = ['guest'];
 
   generateContent = () => {
     let icons = [
@@ -46,11 +46,11 @@ class ListRow extends React.Component { // eslint-disable-line react/prefer-stat
 
     switch (this.props.settingType) {
       case 'roles':
-        if (includes(this.protectedRoleIDs, get(this.props.item, 'id').toString())) {
+        if (includes(this.protectedRoleIDs, get(this.props.item, 'type').toString())) {
           icons = [];
         }
 
-        if (includes(this.undeletableIDs, get(this.props.item, 'id').toString())) {
+        if (includes(this.undeletableIDs, get(this.props.item, 'type').toString())) {
           icons = [{ icoType: 'pencil', onClick: this.handleClick }];
         }
 
@@ -135,7 +135,7 @@ class ListRow extends React.Component { // eslint-disable-line react/prefer-stat
   handleClick = () => {
     switch (this.props.settingType) {
       case 'roles': {
-        if (!includes(this.protectedRoleIDs, get(this.props.item, 'id').toString())) {
+        if (!includes(this.protectedRoleIDs, get(this.props.item, 'type').toString())) {
           return router.push(`${router.location.pathname}/edit/${this.props.item.id}`);
         }
         return;

packages/strapi-plugin-users-permissions/config/actions.json

@@ -0,0 +1 @@
+{"actions":["content-manager.contentmanager.models","content-manager.contentmanager.find","content-manager.contentmanager.count","content-manager.contentmanager.findOne","content-manager.contentmanager.create","content-manager.contentmanager.update","content-manager.contentmanager.delete","content-manager.contentmanager.identity","content-type-builder.contenttypebuilder.getModels","content-type-builder.contenttypebuilder.getModel","content-type-builder.contenttypebuilder.getConnections","content-type-builder.contenttypebuilder.createModel","content-type-builder.contenttypebuilder.updateModel","content-type-builder.contenttypebuilder.deleteModel","content-type-builder.contenttypebuilder.autoReload","content-type-builder.contenttypebuilder.checkTableExists","content-type-builder.contenttypebuilder.identity","settings-manager.settingsmanager.menu","settings-manager.settingsmanager.environments","settings-manager.settingsmanager.languages","settings-manager.settingsmanager.databases","settings-manager.settingsmanager.database","settings-manager.settingsmanager.databaseModel","settings-manager.settingsmanager.get","settings-manager.settingsmanager.update","settings-manager.settingsmanager.createLanguage","settings-manager.settingsmanager.deleteLanguage","settings-manager.settingsmanager.createDatabase","settings-manager.settingsmanager.updateDatabase","settings-manager.settingsmanager.deleteDatabase","settings-manager.settingsmanager.autoReload","settings-manager.settingsmanager.identity","users-permissions.auth.callback","users-permissions.auth.changePassword","users-permissions.auth.forgotPassword","users-permissions.auth.register","users-permissions.auth.identity","users-permissions.user.find","users-permissions.user.me","users-permissions.user.findOne","users-permissions.user.create","users-permissions.user.update","users-permissions.user.destroy","users-permissions.user.identity","users-permissions.userspermissions.createRole","users-permissions.userspermissions.deleteProvider","users-permissions.userspermissions.deleteRole","users-permissions.userspermissions.getPermissions","users-permissions.userspermissions.getPolicies","users-permissions.userspermissions.getRole","users-permissions.userspermissions.getRoles","users-permissions.userspermissions.getRoutes","users-permissions.userspermissions.index","users-permissions.userspermissions.init","users-permissions.userspermissions.searchUsers","users-permissions.userspermissions.updateRole","users-permissions.userspermissions.identity"]}

packages/strapi-plugin-users-permissions/config/functions/bootstrap.js

@@ -17,6 +17,7 @@ module.exports = cb => {
   if (!_.get(strapi.plugins['users-permissions'], 'config.jwtSecret')) {
     try {
       const jwtSecret = uuid();
+
       fs.writeFileSync(path.join(strapi.config.appPath, 'plugins', 'users-permissions', 'config', 'jwt.json'), JSON.stringify({
         jwtSecret
       }, null, 2), 'utf8');
@@ -28,6 +29,6 @@ module.exports = cb => {
   }
 
   strapi.plugins['users-permissions'].services.userspermissions.syncSchema(() => {
-    strapi.plugins['users-permissions'].services.userspermissions.updatePermissions(cb);
+    strapi.plugins['users-permissions'].services.userspermissions.initialize(cb);
   });
 };

packages/strapi-plugin-users-permissions/config/policies/isAuthenticated.js

@@ -1,6 +1,6 @@
 module.exports = async (ctx, next) => {
   if (!ctx.state.user) {
-    throw new Error('Authentication required.');
+    return ctx.unauthorized();
   }
 
   await next();

packages/strapi-plugin-users-permissions/config/policies/permissions.js

@@ -1,45 +1,54 @@
 const _ = require('lodash');
 
 module.exports = async (ctx, next) => {
-  const route = ctx.request.route;
-  let role = '1';
+  let role;
 
   if (ctx.request && ctx.request.header && ctx.request.header.authorization) {
     try {
-      const tokenUser = await strapi.plugins['users-permissions'].services.jwt.getToken(ctx);
-
-      ctx.state.user = await strapi.plugins['users-permissions'].services.user.fetch(_.pick(tokenUser, ['_id', 'id']));
+      const token = await strapi.plugins['users-permissions'].services.jwt.getToken(ctx);
 
+      ctx.state.user = await strapi.query('user', 'users-permissions').findOne(_.pick(token, ['_id', 'id']), ['role'])
     } catch (err) {
       return ctx.unauthorized(err);
     }
 
     if (!ctx.state.user) {
-      return ctx.unauthorized('This user doesn\'t exit.');
+      return ctx.unauthorized(`User Not Found.`);
     }
 
     role = ctx.state.user.role;
 
-    if (role.toString() === '0') {
+    if (role.type === 'root') {
       return await next();
     }
   }
 
-  const permission = _.get(strapi.plugins['users-permissions'].config, ['roles', role.toString(), 'permissions', route.plugin || 'application', 'controllers', route.controller, route.action]);
+  // Retrieve `guest` role.
+  if (!role) {
+    role = await strapi.query('role', 'users-permissions').findOne({ type: 'guest' }, []);
+  }
+
+  const route = ctx.request.route;
+
+  const permission = await strapi.query('permission', 'users-permissions').findOne({
+    role: role._id || role.id,
+    type: route.plugin || 'application',
+    controller: route.controller,
+    action: route.action,
+    enabled: true
+  }, []);
 
   if (!permission) {
-    return await next();
+    return ctx.unauthorized();
   }
 
-  if (permission.enabled && permission.policy) {
-    try {
-      await strapi.plugins['users-permissions'].config.policies[permission.policy](ctx, next);
-    } catch (err) {
-      ctx.unauthorized(err);
-    }
-  } else if (permission.enabled) {
-    await next();
-  } else {
-    ctx.unauthorized('Access restricted for this action.');
+  // Execute the policies.
+  if (permission.policy) {
+    await strapi.plugins['users-permissions'].config.policies[permission.policy](ctx, next);
   }
+
+  console.log("OKAY");
+
+  // Execute the action.
+  await next();
 };

packages/strapi-plugin-users-permissions/config/queries/mongoose.js

@@ -1,21 +1,22 @@
 const _ = require('lodash');
 
 module.exports = {
-  find: async function (params) {
+  find: async function (params = {}, populate) {
     return this
       .find(params.where)
       .limit(Number(params.limit))
       .sort(params.sort)
       .skip(Number(params.skip))
-      .populate(this.associations.map(x => x.alias).join(' '));
+      .populate(populate || this.associations.map(x => x.alias).join(' '))
+      .lean();
   },
 
-  count: async function (params) {
+  count: async function (params = {}) {
     return Number(await this
-      .count());
+      .count(params));
   },
 
-  findOne: async function (params) {
+  findOne: async function (params, populate) {
     if (!params[this.primaryKey] && params.id) {
       params[this.primaryKey] = params.id;
       delete params.id;
@@ -25,12 +26,12 @@ module.exports = {
 
     return this
       .findOne(params)
-      .populate(this.associations.map(x => x.alias).join(' '));
+      .populate(populate || this.associations.map(x => x.alias).join(' '));
   },
 
   create: async function (params) {
     return this.create(Object.keys(params).reduce((acc, current) => {
-      if (_.get(this._attributes, [current, 'type'])) {
+      if (_.get(this._attributes, [current, 'type']) || _.get(this._attributes, [current, 'model'])) {
         acc[current] = params[current];
       }
 
@@ -87,5 +88,20 @@ module.exports = {
         }
       }
     ]);
+  },
+
+  createRole: async function (params) {
+    return this.
+      create(params);
+  },
+
+  addPermission: async function (params) {
+    return this
+      .create(params);
+  },
+
+  removePermission: async function (params) {
+    return this
+      .remove(params);
   }
 };

packages/strapi-plugin-users-permissions/controllers/Auth.js

@@ -159,15 +159,18 @@ module.exports = {
     }
 
     // First, check if the user is the first one to register as admin.
-    const adminUsers = await strapi.query('user', 'users-permissions').find(strapi.utils.models.convertParams('user', { role: '0' }));
+    const hasAdmin = await strapi.query('user', 'users-permissions').count(strapi.utils.models.convertParams('user', { type: 'root' }));
 
     // Check if the user is the first to register
-    if (adminUsers.length === 0) {
-      params.role = '0';
-    } else {
-      params.role = '1';
+    const role = hasAdmin < 1 ?
+      await strapi.query('role', 'users-permissions').findOne({ type: 'root' }, []):
+      await strapi.query('role', 'users-permissions').findOne({ type: 'guest' }, []);
+
+    if (!role) {
+      return ctx.badRequest(null, ctx.request.admin ? [{ messages: [{ id: 'Auth.form.error.role.notFound' }] }] : 'Impossible to find the root role.');
     }
 
+    params.role = role._id || role.id;
     params.password = await strapi.plugins['users-permissions'].services.user.hashPassword(params);
 
     try {

packages/strapi-plugin-users-permissions/controllers/UsersPermissions.js

@@ -90,10 +90,12 @@ module.exports = {
 
   getRoles: async (ctx) => {
     try {
+      console.log("coucou");
       const roles = await strapi.plugins['users-permissions'].services.userspermissions.getRoles();
 
       ctx.send({ roles });
     } catch(err) {
+      console.log(err);
       ctx.badRequest(null, [{ messages: [{ id: 'Not found' }] }]);
     }
   },
@@ -118,7 +120,7 @@ module.exports = {
   },
 
   init: async (ctx) => {
-    const hasAdmin = await strapi.query('user', 'users-permissions').find(strapi.utils.models.convertParams('user', { role: '0' }));
+    const hasAdmin = await strapi.query('user', 'users-permissions').find(strapi.utils.models.convertParams('user', { type: 'guest' }));
 
     ctx.send({ hasAdmin: hasAdmin.length > 0 });
   },

packages/strapi-plugin-users-permissions/models/Permission.js

@@ -0,0 +1,54 @@
+'use strict';
+
+/**
+ * Lifecycle callbacks for the `User` model.
+ */
+
+module.exports = {
+  // Before saving a value.
+  // Fired before an `insert` or `update` query.
+  // beforeSave: async (model) => {},
+
+  // After saving a value.
+  // Fired after an `insert` or `update` query.
+  // afterSave: async (model, result) => {},
+
+  // Before fetching all values.
+  // Fired before a `fetchAll` operation.
+  // beforeFetchAll: async (model) => {},
+
+  // After fetching all values.
+  // Fired after a `fetchAll` operation.
+  // afterFetchAll: async (model, results) => {},
+
+  // Fired before a `fetch` operation.
+  // beforeFetch: async (model) => {},
+
+  // After fetching a value.
+  // Fired after a `fetch` operation.
+  // afterFetch: async (model, result) => {},
+
+  // Before creating a value.
+  // Fired before `insert` query.
+  // beforeCreate: async (model) => {},
+
+  // After creating a value.
+  // Fired after `insert` query.
+  // afterCreate: async (model, result) => {},
+
+  // Before updating a value.
+  // Fired before an `update` query.
+  // beforeUpdate: async (model) => {},
+
+  // After updating a value.
+  // Fired after an `update` query.
+  // afterUpdate: async (model, result) => {},
+
+  // Before destroying a value.
+  // Fired before a `delete` query.
+  // beforeDestroy: async (model) => {},
+
+  // After destroying a value.
+  // Fired after a `delete` query.
+  // afterDestroy: async (model, result) => {}
+};

packages/strapi-plugin-users-permissions/models/Permission.settings.json

@@ -0,0 +1,34 @@
+{
+  "connection": "default",
+  "info": {
+    "name": "permission",
+    "description": ""
+  },
+  "attributes": {
+    "type": {
+      "type": "string",
+      "required": true
+    },
+    "controller": {
+      "type": "string",
+      "required": true
+    },
+    "action": {
+      "type": "string",
+      "required": true
+    },
+    "enabled": {
+      "type": "boolean",
+      "required": true
+    },
+    "policy": {
+      "type": "json",
+      "required": true
+    },
+    "role": {
+      "model": "role",
+      "via": "permissions",
+      "plugin": "users-permissions"
+    }
+  }
+}

packages/strapi-plugin-users-permissions/models/Role.js

@@ -0,0 +1,54 @@
+'use strict';
+
+/**
+ * Lifecycle callbacks for the `User` model.
+ */
+
+module.exports = {
+  // Before saving a value.
+  // Fired before an `insert` or `update` query.
+  // beforeSave: async (model) => {},
+
+  // After saving a value.
+  // Fired after an `insert` or `update` query.
+  // afterSave: async (model, result) => {},
+
+  // Before fetching all values.
+  // Fired before a `fetchAll` operation.
+  // beforeFetchAll: async (model) => {},
+
+  // After fetching all values.
+  // Fired after a `fetchAll` operation.
+  // afterFetchAll: async (model, results) => {},
+
+  // Fired before a `fetch` operation.
+  // beforeFetch: async (model) => {},
+
+  // After fetching a value.
+  // Fired after a `fetch` operation.
+  // afterFetch: async (model, result) => {},
+
+  // Before creating a value.
+  // Fired before `insert` query.
+  // beforeCreate: async (model) => {},
+
+  // After creating a value.
+  // Fired after `insert` query.
+  // afterCreate: async (model, result) => {},
+
+  // Before updating a value.
+  // Fired before an `update` query.
+  // beforeUpdate: async (model) => {},
+
+  // After updating a value.
+  // Fired after an `update` query.
+  // afterUpdate: async (model, result) => {},
+
+  // Before destroying a value.
+  // Fired before a `delete` query.
+  // beforeDestroy: async (model) => {},
+
+  // After destroying a value.
+  // Fired after a `delete` query.
+  // afterDestroy: async (model, result) => {}
+};

packages/strapi-plugin-users-permissions/models/Role.settings.json

@@ -0,0 +1,31 @@
+{
+  "connection": "default",
+  "info": {
+    "name": "role",
+    "description": ""
+  },
+  "attributes": {
+    "name": {
+      "type": "string",
+      "minLength": 3,
+      "required": true
+    },
+    "description": {
+      "type": "string"
+    },
+    "type": {
+      "type": "string",
+      "unique": true
+    },
+    "users": {
+      "collection": "user",
+      "via": "role",
+      "plugin": "users-permissions"
+    },
+    "permissions": {
+      "collection": "permission",
+      "via": "role",
+      "plugin": "users-permissions"
+    }
+  }
+}

packages/strapi-plugin-users-permissions/models/User.settings.json

@@ -1,5 +1,5 @@
 {
-  "collectionName": "",
+  "connection": "default",
   "info": {
     "name": "user",
     "description": ""
@@ -34,9 +34,10 @@
       "configurable": false
     },
     "role": {
-      "type": "integer",
+      "model": "role",
+      "via": "users",
+      "plugin": "users-permissions",
       "configurable": false
     }
-  },
-  "connection": "default"
+  }
 }

packages/strapi-plugin-users-permissions/services/UsersPermissions.js

@@ -2,7 +2,6 @@
 
 const fs = require('fs')
 const path = require('path');
-const stringify = JSON.stringify;
 const _ = require('lodash');
 const request = require('request');
 
@@ -59,7 +58,7 @@ module.exports = {
     });
   },
 
-  getActions: (plugins = []) => {
+  getActions: (plugins = [], withInfo = true) => {
     const generateActions = (data) => (
       Object.keys(data).reduce((acc, key) => {
         acc[key] = { enabled: false, policy: '' };
@@ -74,12 +73,20 @@ module.exports = {
     }, { controllers: {} });
 
     const pluginsPermissions = Object.keys(strapi.plugins).reduce((acc, key) => {
+      const initialState = {
+        controllers: {}
+      };
+
+      if (withInfo) {
+        initialState.information = plugins.find(plugin => plugin.id === key) || {};
+      }
+
       acc[key] = Object.keys(strapi.plugins[key].controllers).reduce((obj, k) => {
         obj.controllers[k] = generateActions(strapi.plugins[key].controllers[k]);
 
         return obj;
 
-      }, { controllers: {}, information: plugins.find(plugin => plugin.id === key) || {} });
+      }, initialState);
 
       return acc;
     }, {});
@@ -108,111 +115,107 @@ module.exports = {
   },
 
   getRoles: async () => {
-    const roles = strapi.plugins['users-permissions'].config.roles;
-    const usersCount = await strapi.query('user', 'users-permissions').countByRoles();
-    const formattedRoles = Object.keys(roles).reduce((acc, key) => {
-      const role = _.pick(roles[key], ['name', 'description']);
+    const roles = await strapi.query('role', 'users-permissions').find({ sort: 'name ASC' }, []);
 
-      _.set(role, 'id', key);
-      _.set(role, 'nb_users', _.get(_.find(usersCount, { _id: parseFloat(key) }), 'total', 0));
-      acc.push(role);
+    for (let i = 0; i < roles.length; ++i) {
+      role.nb_users = await strapi.query('user', 'users-permissions').count({ role: roles[i].id || roles[i]._id });
+    }
 
-      return acc;
-    }, []);
-
-    return formattedRoles;
+    return roles;
   },
 
   getRoutes: async () => {
-    const apiRoutes = strapi.api ? Object.keys(strapi.api).reduce((acc, current) => {
+    const routes = Object.keys(strapi.api || {}).reduce((acc, current) => {
       return acc.concat(strapi.api[current].config.routes);
-    }, []) : [];
+    }, []);
 
-    const pluginsRoutes = Object.keys(strapi.plugins).reduce((acc, current) => {
+    const pluginsRoutes = Object.keys(strapi.plugins || {}).reduce((acc, current) => {
       acc[current] = strapi.plugins[current].config.routes;
 
       return acc;
     }, []);
 
-    return _.merge({ application: apiRoutes}, pluginsRoutes);
+    return _.merge({ application: routes }, pluginsRoutes);
   },
 
-  getRoleConfigPath: () => (
-    path.join(
-      strapi.config.appPath,
-      'plugins',
-      'users-permissions',
-      'config',
-      'roles.json',
-    )
-  ),
+  updatePermissions: async function (cb) {
+    const actions = strapi.plugins['users-permissions'].config.actions || [];
 
-  updateData: (data, diff = 'unset') => {
-    const dataToCompare = strapi.plugins['users-permissions'].services.userspermissions.getActions();
+    // Aggregate first level actions.
+    const appActions = Object.keys(strapi.api || {}).reduce((acc, api) => {
+      Object.keys(strapi.api[api].controllers)
+        .map(controller => {
+          const actions = Object.keys(strapi.api[api].controllers[controller])
+            .map(action => `application.${controller}.${action}`);
 
-    _.forEach(data, (roleData, roleId) => {
-      const obj = diff === 'unset' ? roleData.permissions : dataToCompare;
-
-      _.forEach(obj, (pluginData, pluginName) => {
-        _.forEach(pluginData.controllers, (controllerActions, controllerName) => {
-          _.forEach(controllerActions, (actionData, actionName) => {
-            if (diff === 'unset') {
-              if (!_.get(dataToCompare, [pluginName, 'controllers', controllerName])) {
-                _.unset(data, [roleId, 'permissions',  pluginName, 'controllers', controllerName]);
-                return;
-              }
-
-              if (!_.get(dataToCompare, [pluginName, 'controllers', controllerName, actionName])) {
-                _.unset(data, [roleId, 'permissions', pluginName, 'controllers', controllerName, actionName]);
-              }
-            } else if (!_.get(data, [roleId, 'permissions', pluginName, 'controllers', controllerName, actionName])) {
-              const isCallback = actionName === 'callback' && controllerName === 'auth' && pluginName === 'users-permissions' && roleId === '1';
-              const isRegister = actionName === 'register' && controllerName === 'auth' && pluginName === 'users-permissions' && roleId === '1';
-              const isPassword = actionName === 'forgotPassword' && controllerName === 'auth' && pluginName === 'users-permissions' && roleId === '1';
-              const isNewPassword = actionName === 'changePassword' && controllerName === 'auth' && pluginName === 'users-permissions' && roleId === '1';
-              const isInit = actionName === 'init' && controllerName === 'userspermissions';
-              const isMe = actionName === 'me' && controllerName === 'user' && pluginName === 'users-permissions';
-              const enabled = isCallback || isRegister || roleId === '0' || isInit || isPassword || isNewPassword || isMe;
-
-              _.set(data, [roleId, 'permissions', pluginName, 'controllers', controllerName, actionName], { enabled, policy: '' })
-            }
-          });
-        });
+          acc = acc.concat(actions);
       });
-    });
 
-    return data;
-  },
+      return acc;
+    }, []);
 
-  updatePermissions: async (cb) => {
-    const appActions = module.exports.getActions();
-    const writePermissions = module.exports.writePermissions;
-    const currentRoles = strapi.plugins['users-permissions'].config.roles || {
-      '0': {
-        description: '',
-        name: 'Administrator',
-        permissions: {
-          application: {
-            controllers: {},
-          },
-        },
-      },
-      '1': {
-        description: '',
-        name: 'Guest',
-        permissions: {
-          application: {
-            controllers: {},
-          },
-        },
-      },
-    };
+    // Aggregate plugins' actions.
+    const pluginsActions = Object.keys(strapi.plugins).reduce((acc, plugin) => {
+      Object.keys(strapi.plugins[plugin].controllers)
+        .map(controller => {
+          const actions = Object.keys(strapi.plugins[plugin].controllers[controller])
+            .map(action => `${plugin}.${controller}.${action}`);
 
-    const remove = await module.exports.updateData(_.cloneDeep(currentRoles));
-    const added = await module.exports.updateData(_.cloneDeep(remove), 'set');
+          acc = acc.concat(actions);
+      });
 
-    if (!_.isEqual(currentRoles, added)) {
-      writePermissions(added);
+      return acc;
+    }, []);
+
+    // Merge array into one.
+    const currentActions = appActions.concat(pluginsActions);
+    // Count permissions available.
+    const permissions = await strapi.query('permission', 'users-permissions').count();
+
+    // Compare to know if actions have been added or removed from controllers.
+    if (!_.isEqual(actions, currentActions) || permissions < 1) {
+      const splitted = (str) => {
+        const [type, controller, action] = str.split('.');
+
+        return { type, controller, action };
+      };
+
+      const defaultPolicy = (obj, role) => {
+        const isCallback = obj.action === 'callback' && obj.controller === 'auth' && obj.type === 'users-permissions' && role.type === 'guest';
+        const isRegister = obj.action === 'register' && obj.controller === 'auth' && obj.type === 'users-permissions' && role.type === 'guest';
+        const isPassword = obj.action === 'forgotPassword' && obj.controller === 'auth' && obj.type === 'users-permissions' && role.type === 'guest';
+        const isNewPassword = obj.action === 'changePassword' && obj.controller === 'auth' && obj.type === 'users-permissions' && role.type === 'guest';
+        const isInit = obj.action === 'init' && obj.controller === 'userspermissions';
+        const isMe = obj.action === 'me' && obj.controller === 'user' && obj.type === 'users-permissions';
+        const enabled = isCallback || isRegister || role.type === 'root' || isInit || isPassword || isNewPassword || isMe;
+
+        return Object.assign(obj, { enabled, policy: '' });
+      };
+
+      // Retrieve roles
+      const roles = await strapi.query('role', 'users-permissions').find();
+
+      // We have to know the difference to add or remove
+      // the permissions entries in the database.
+      const toRemove = _.difference(actions, currentActions).map(splitted);
+      const toAdd = (permissions < 1 ? currentActions : _.difference(currentActions, actions))
+          .map(splitted);
+
+      // Execute request to update entries in database for each role.
+      await Promise.all(
+        roles.map(role =>
+          Promise.all(
+            toAdd
+              .map(action => defaultPolicy(action, role))
+              .map(action => strapi.query('permission', 'users-permissions')
+                .addPermission(Object.assign(action, { role: role.id || role._id }))
+              )
+          )
+        ),
+        Promise.all(toRemove.map(action => strapi.query('permission', 'users-permissions').removePermission(action)))
+      );
+
+      this.writeActions(currentActions);
     }
 
     if (cb) {
@@ -220,11 +223,40 @@ module.exports = {
     }
   },
 
+  initialize: async function (cb) {
+    const roles = await strapi.query('role', 'users-permissions').count();
+
+    // It's has been already initialized.
+    if (roles > 0) {
+      return await this.updatePermissions(cb);
+    }
+
+    // Create two first default roles.
+    await Promise.all([
+      strapi.query('role', 'users-permissions').createRole({
+        name: 'Administrator',
+        description: 'These users have all access in the project.',
+        type: 'root'
+      }),
+      strapi.query('role', 'users-permissions').createRole({
+        name: 'Guest',
+        description: 'Default role given to unauthenticated user.',
+        type: 'guest'
+      }),
+    ]);
+
+    await this.updatePermissions(cb);
+  },
+
   updateRole: async (roleId, body) => {
     const appRoles = strapi.plugins['users-permissions'].config.roles
     const updatedRole = _.pick(body, ['name', 'description', 'permissions']);
     _.set(appRoles, [roleId], updatedRole);
 
+    // TODO:
+    // - Call request.
+    // Role.update()
+
     module.exports.writePermissions(appRoles);
 
     const currentUsers = await strapi.query('user', 'users-permissions').find(strapi.utils.models.convertParams('user', {
@@ -248,11 +280,13 @@ module.exports = {
     });
   },
 
-  writePermissions: (data) => {
-    const roleConfigPath = module.exports.getRoleConfigPath();
+  writeActions: (data) => {
+    const actionsPath = path.join(strapi.config.appPath, 'plugins', 'users-permissions', 'config', 'actions.json');
 
     try {
-      fs.writeFileSync(roleConfigPath, stringify({ roles: data }, null, 2), 'utf8');
+      // Rewrite actions.json file.
+      fs.writeFileSync(actionsPath, JSON.stringify({ actions: data }), 'utf8');
+      // Set value to AST to avoid restart.
       _.set(strapi.plugins['users-permissions'], 'config.roles', data);
     } catch(err) {
       strapi.log.error(err);