feat: Add custom OAuth setting to allow merging users to others from …

…distinct services (RocketChat#28783)

* Merge OAuth users with existing users from distinct services when setting is enabled

* Add changesets

* Fix changesets

* Apply requested changes

---------

Co-authored-by: Diego Sampaio <chinello@gmail.com>
Co-authored-by: Rafael Tapia <rafael.tapia@rocket.chat>
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>
Co-authored-by: Gabriel Casals <83978645+casalsgh@users.noreply.github.com>

.changeset/dirty-singers-promise.md

@@ -0,0 +1,6 @@
+---
+"@rocket.chat/meteor": minor
+"@rocket.chat/rest-typings": minor
+---
+
+feat: Add custom OAuth setting to allow merging users to others from distinct services

apps/meteor/app/custom-oauth/server/custom_oauth_server.js

@@ -81,6 +81,7 @@ export class CustomOAuth {
 		this.nameField = (options.nameField || '').trim();
 		this.avatarField = (options.avatarField || '').trim();
 		this.mergeUsers = options.mergeUsers;
+		this.mergeUsersDistinctServices = options.mergeUsersDistinctServices;
 		this.rolesClaim = options.rolesClaim || 'roles';
 		this.accessTokenParam = options.accessTokenParam;
 		this.channelsAdmin = options.channelsAdmin || 'rocket.cat';
@@ -333,9 +334,13 @@ export class CustomOAuth {
 				let user = undefined;
 
 				if (this.keyField === 'username') {
-					user = await Users.findOneByUsernameAndServiceNameIgnoringCase(serviceData.username, serviceData._id, serviceName);
+					user = this.mergeUsersDistinctServices
+						? await Users.findOneByUsernameIgnoringCase(serviceData.username)
+						: await Users.findOneByUsernameAndServiceNameIgnoringCase(serviceData.username, serviceData.id, serviceName);
 				} else if (this.keyField === 'email') {
-					user = await Users.findOneByEmailAddressAndServiceNameIgnoringCase(serviceData.email, serviceData._id, serviceName);
+					user = this.mergeUsersDistinctServices
+						? await Users.findOneByEmailAddress(serviceData.email)
+						: await Users.findOneByEmailAddressAndServiceNameIgnoringCase(serviceData.email, serviceData.id, serviceName);
 				}
 
 				if (!user) {

apps/meteor/app/lib/server/functions/addOAuthService.ts

@@ -230,6 +230,18 @@ export async function addOAuthService(name: string, values: { [k: string]: strin
 		i18nLabel: 'Accounts_OAuth_Custom_Merge_Users',
 		persistent: true,
 	});
+	await settingsRegistry.add(`Accounts_OAuth_Custom-${name}-merge_users_distinct_services`, values.mergeUsersDistinctServices || false, {
+		type: 'boolean',
+		group: 'OAuth',
+		section: `Custom OAuth: ${name}`,
+		i18nLabel: 'Accounts_OAuth_Custom_Merge_Users_Distinct_Services',
+		i18nDescription: 'Accounts_OAuth_Custom_Merge_Users_Distinct_Services_Description',
+		enableQuery: {
+			_id: `Accounts_OAuth_Custom-${name}-merge_users`,
+			value: true,
+		},
+		persistent: true,
+	});
 	await settingsRegistry.add(`Accounts_OAuth_Custom-${name}-show_button`, values.showButton || true, {
 		type: 'boolean',
 		group: 'OAuth',

apps/meteor/app/lib/server/startup/oAuthServicesUpdate.js

@@ -53,6 +53,7 @@ async function _OAuthServicesUpdate() {
 				data.channelsMap = settings.get(`${key}-groups_channel_map`);
 				data.channelsAdmin = settings.get(`${key}-channels_admin`);
 				data.mergeUsers = settings.get(`${key}-merge_users`);
+				data.mergeUsersDistinctServices = settings.get(`${key}-merge_users_distinct_services`);
 				data.mapChannels = settings.get(`${key}-map_channels`);
 				data.mergeRoles = settings.get(`${key}-merge_roles`);
 				data.rolesToSync = settings.get(`${key}-roles_to_sync`);
@@ -78,6 +79,7 @@ async function _OAuthServicesUpdate() {
 					channelsMap: data.channelsMap,
 					channelsAdmin: data.channelsAdmin,
 					mergeUsers: data.mergeUsers,
+					mergeUsersDistinctServices: data.mergeUsersDistinctServices,
 					mergeRoles: data.mergeRoles,
 					rolesToSync: data.rolesToSync,
 					accessTokenParam: data.accessTokenParam,
@@ -187,6 +189,7 @@ async function customOAuthServicesInit() {
 					channelsMap: process.env[`${serviceKey}_groups_channel_map`],
 					channelsAdmin: process.env[`${serviceKey}_channels_admin`],
 					mergeUsers: process.env[`${serviceKey}_merge_users`] === 'true',
+					mergeUsersDistinctServices: process.env[`${serviceKey}_merge_users_distinct_services`] === 'true',
 					mapChannels: process.env[`${serviceKey}_map_channels`],
 					mergeRoles: process.env[`${serviceKey}_merge_roles`] === 'true',
 					rolesToSync: process.env[`${serviceKey}_roles_to_sync`],

apps/meteor/packages/rocketchat-i18n/i18n/en.i18n.json

@@ -135,6 +135,8 @@
   "Accounts_OAuth_Custom_Map_Channels": "Map Roles/Groups to channels",
   "Accounts_OAuth_Custom_Merge_Roles": "Merge Roles from SSO",
   "Accounts_OAuth_Custom_Merge_Users": "Merge users",
+  "Accounts_OAuth_Custom_Merge_Users_Distinct_Services": "Merge users from distinct services",
+  "Accounts_OAuth_Custom_Merge_Users_Distinct_Services_Description": "When the given key field matches the one of an existing user, allow users from this OAuth service to be merged to existing users regardless of their origin service.",
   "Accounts_OAuth_Custom_Name_Field": "Name field",
   "Accounts_OAuth_Custom_Roles_Claim": "Roles/Groups field name",
   "Accounts_OAuth_Custom_Roles_To_Sync": "Roles to Sync",

apps/meteor/server/startup/migrations/v300.ts

@@ -0,0 +1,27 @@
+import { Settings } from '@rocket.chat/models';
+
+import { settingsRegistry } from '../../../app/settings/server';
+import { addMigration } from '../../lib/migrations';
+
+addMigration({
+	version: 300,
+	async up() {
+		const customOauthServices = await Settings.find({ _id: /Accounts_OAuth_Custom-[^-]+$/ }, { projection: { _id: 1 } }).toArray();
+		const serviceNames = customOauthServices.map(({ _id }) => _id.replace('Accounts_OAuth_Custom-', ''));
+
+		for await (const serviceName of serviceNames) {
+			await settingsRegistry.add(`Accounts_OAuth_Custom-${serviceName}-merge_users_distinct_services`, false, {
+				type: 'boolean',
+				group: 'OAuth',
+				section: `Custom OAuth: ${serviceName}`,
+				i18nLabel: 'Accounts_OAuth_Custom_Merge_Users_Distinct_Services',
+				i18nDescription: 'Accounts_OAuth_Custom_Merge_Users_Distinct_Services_Description',
+				enableQuery: {
+					_id: `Accounts_OAuth_Custom-${serviceName}-merge_users`,
+					value: true,
+				},
+				persistent: true,
+			});
+		}
+	},
+});

packages/rest-typings/src/v1/settings.ts

@@ -32,6 +32,7 @@ export type OauthCustomConfiguration = {
 	channelsMap: string;
 	channelsAdmin: string;
 	mergeUsers: boolean;
+	mergeUsersDistinctServices: boolean;
 	mergeRoles: boolean;
 	accessTokenParam: string;
 	showButton: boolean;