Make user role mappings configurable

src/IConfigOptions.ts

@@ -207,6 +207,12 @@ export interface IConfigOptions {
             client_id: string;
         }
     >;
+
+    custom_power_level_roles?: {
+        [level: string]: {
+            [lang: string]: string;
+        };
+    };
 }
 
 export interface ISsoRedirectOptions {

src/Roles.ts

@@ -14,9 +14,30 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import { _t } from "./languageHandler";
+import { safeSet } from "matrix-js-sdk/src/utils";
+
+import SdkConfig from "./SdkConfig";
+import { _t, pickBestLanguage } from "./languageHandler";
 
 export function levelRoleMap(usersDefault: number): Record<number | "undefined", string> {
+    const customPowerLevelRoles = SdkConfig.get().custom_power_level_roles;
+    if (customPowerLevelRoles) {
+        const mappings: Record<number | "undefined", string> = {
+            undefined: _t("Default"),
+        };
+
+        Object.entries(customPowerLevelRoles).forEach(([levelString, langs]) => {
+            const lang = pickBestLanguage(Object.keys(langs));
+            if (lang && langs[lang]) {
+                safeSet(mappings, parseInt(levelString), langs[lang]);
+            }
+        });
+
+        if (Object.keys(mappings).length > 1) {
+            return mappings;
+        }
+    }
+
     return {
         undefined: _t("Default"),
         0: _t("Restricted"),

src/components/views/elements/PowerSelector.tsx

@@ -22,6 +22,8 @@ import Field from "./Field";
 import { KeyBindingAction } from "../../../accessibility/KeyboardShortcuts";
 import { getKeyBindingsManager } from "../../../KeyBindingsManager";
 import { objectHasDiff } from "../../../utils/objects";
+import SettingsStore from "../../../settings/SettingsStore";
+import { UIFeature } from "../../../settings/UIFeature";
 
 const CUSTOM_VALUE = "SELECT_VALUE_CUSTOM";
 
@@ -173,7 +175,9 @@ export default class PowerSelector<K extends undefined | string> extends React.C
                     text: Roles.textualPowerLevel(level, this.props.usersDefault),
                 };
             });
-            options.push({ value: CUSTOM_VALUE, text: _t("Custom level") });
+            if (SettingsStore.getValue(UIFeature.CustomPowerLevel)) {
+                options.push({ value: CUSTOM_VALUE, text: _t("Custom level") });
+            }
             const optionsElements = options.map((op) => {
                 return (
                     <option value={op.value} key={op.value} data-testid={`power-level-option-${op.value}`}>

src/settings/Settings.tsx

@@ -1142,6 +1142,10 @@ export const SETTINGS: { [setting: string]: ISetting } = {
         supportedLevels: LEVELS_UI_FEATURE,
         default: true,
     },
+    [UIFeature.CustomPowerLevel]: {
+        supportedLevels: LEVELS_UI_FEATURE,
+        default: true,
+    },
 
     // Electron-specific settings, they are stored by Electron and set/read over an IPC.
     // We store them over there are they are necessary to know before the renderer process launches.

src/settings/UIFeature.ts

@@ -33,6 +33,7 @@ export const enum UIFeature {
     RoomHistorySettings = "UIFeature.roomHistorySettings",
     TimelineEnableRelativeDates = "UIFeature.timelineEnableRelativeDates",
     BulkUnverifiedSessionsReminder = "UIFeature.BulkUnverifiedSessionsReminder",
+    CustomPowerLevel = "UIFeature.customPowerLevel",
 }
 
 export enum UIComponent {

test/Roles-test.ts

@@ -0,0 +1,91 @@
+/*
+Copyright 2023 Nordeck IT + Consulting GmbH.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { levelRoleMap } from "../src/Roles";
+import SdkConfig from "../src/SdkConfig";
+import { setLanguage } from "../src/languageHandler";
+
+describe("levelRoleMap", () => {
+    beforeEach(async () => {
+        await setLanguage("en");
+    });
+
+    it("returns default role labels", async () => {
+        expect(levelRoleMap(0)).toEqual({
+            undefined: "Default",
+            0: "Default",
+            50: "Moderator",
+            100: "Admin",
+        });
+    });
+
+    it("returns a restricted level with custom default user level", async () => {
+        expect(levelRoleMap(10)).toEqual({
+            undefined: "Default",
+            0: "Restricted",
+            10: "Default",
+            50: "Moderator",
+            100: "Admin",
+        });
+    });
+
+    it("returns custom levels if present in the configuration", async () => {
+        SdkConfig.put({
+            custom_power_level_roles: {
+                "0": { en: "Regular" },
+                "1": { en: "Mod" },
+                "2": { en: "Admin" },
+            },
+        });
+
+        expect(levelRoleMap(0)).toEqual({
+            undefined: "Default",
+            0: "Regular",
+            1: "Mod",
+            2: "Admin",
+        });
+    });
+
+    it("returns custom levels in the correct language", async () => {
+        SdkConfig.put({
+            custom_power_level_roles: {
+                "0": { en: "Regular", de: "Normal" },
+                "1": { "en": "Mod", "de-DE": "Moderator" },
+                "2": { en: "Admin" },
+            },
+        });
+
+        await setLanguage("de");
+
+        expect(levelRoleMap(0)).toEqual({
+            undefined: "Standard",
+            0: "Normal",
+            1: "Moderator",
+            2: "Admin",
+        });
+    });
+
+    it("returns default levels if custom configuration is empty", async () => {
+        SdkConfig.put({ custom_power_level_roles: { "0": {} } });
+
+        expect(levelRoleMap(0)).toEqual({
+            undefined: "Default",
+            0: "Default",
+            50: "Moderator",
+            100: "Admin",
+        });
+    });
+});