feat: Handle privilege escalation gracefully even without PolicyKit (#599)

* feat: Handle privilege escalation gracefully even without PolicyKit

* build: upgrade tslint => 5.9.1

* build: add uhk-agent/package-lock.json

* feat: add error animation

* fix: display agent icon when user use ALT + TAB

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "uhk-agent",
-  "version": "1.1.2",
+  "version": "1.1.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -1414,9 +1414,9 @@
       "dev": true
     },
     "commander": {
-      "version": "2.11.0",
+      "version": "2.15.1",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.11.0.tgz",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.15.1.tgz",
-      "integrity": "sha512-b0553uYA5YAEGgyYIGYROzKQ7X5RAqedkfjiZxwi0kL1g3bOaBNNZfYkzt/CL0umgD5wc9Jec2FbB98CjkMRvQ==",
+      "integrity": "sha512-VlfT9F3V0v+jr4yxPc5gg9s62/fIVWsd2Bk2iD435um1NlGMYdVCq+MjcXnhYq2icNOizHr1kK+5TI6H0Hy0ag==",
       "dev": true
     },
     "compare-func": {
@@ -9428,9 +9428,9 @@
       "dev": true
     },
     "resolve": {
-      "version": "1.4.0",
+      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.6.0.tgz",
-      "integrity": "sha512-aW7sVKPufyHqOmyyLzg/J+8606v5nevBgaliIlV7nUpVMsDnoBGV/cbSLNjZAg9q0Cfd/+easKVKQ8vOu8fn1Q==",
+      "integrity": "sha512-mw7JQNu5ExIkcw4LPih0owX/TZXjD/ZUF/ZQ/pDnkw3ZKhDcZZw5klmBlj6gVMwjQ3Pz5Jgu7F3d0jcDVuEWdw==",
       "dev": true,
       "requires": {
         "path-parse": "1.0.5"
@@ -10843,29 +10843,51 @@
       }
     },
     "tslib": {
-      "version": "1.7.1",
+      "version": "1.9.0",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.7.1.tgz",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.0.tgz",
-      "integrity": "sha1-vIAEFkaRkjp5/oN4u+s9ogF1OOw=",
+      "integrity": "sha512-f/qGG2tUkrISBlQZEjEqoZ3B2+npJjIf04H1wuAv9iA8i04Icp+61KRXxFdha22670NJopsZCIjhC3SnjPRKrQ==",
       "dev": true
     },
     "tslint": {
-      "version": "5.5.0",
+      "version": "5.9.1",
-      "resolved": "https://registry.npmjs.org/tslint/-/tslint-5.5.0.tgz",
+      "resolved": "https://registry.npmjs.org/tslint/-/tslint-5.9.1.tgz",
-      "integrity": "sha1-EOjas+MGH6YelELozuOYKs8gpqo=",
+      "integrity": "sha1-ElX4ej/1frCw4fDmEKi0dIBGya4=",
       "dev": true,
       "requires": {
         "babel-code-frame": "6.26.0",
-        "colors": "1.1.2",
+        "builtin-modules": "1.1.1",
-        "commander": "2.11.0",
+        "chalk": "2.3.2",
+        "commander": "2.15.1",
         "diff": "3.4.0",
         "glob": "7.1.2",
+        "js-yaml": "3.10.0",
         "minimatch": "3.0.4",
-        "resolve": "1.4.0",
+        "resolve": "1.6.0",
         "semver": "5.4.1",
-        "tslib": "1.7.1",
+        "tslib": "1.9.0",
-        "tsutils": "2.12.0"
+        "tsutils": "2.26.1"
       },
       "dependencies": {
+        "ansi-styles": {
+          "version": "3.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+          "dev": true,
+          "requires": {
+            "color-convert": "1.9.1"
+          }
+        },
+        "chalk": {
+          "version": "2.3.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.3.2.tgz",
+          "integrity": "sha512-ZM4j2/ld/YZDc3Ma8PgN7gyAk+kHMMMyzLNryCPGhWrsfAuDVeuid5bpRFTDgMH9JBK2lA4dyyAkkZYF/WcqDQ==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "3.2.1",
+            "escape-string-regexp": "1.0.5",
+            "supports-color": "5.3.0"
+          }
+        },
         "glob": {
           "version": "7.1.2",
           "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
@@ -10879,16 +10901,31 @@
             "once": "1.4.0",
             "path-is-absolute": "1.0.1"
           }
+        },
+        "has-flag": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
+          "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
+          "dev": true
+        },
+        "supports-color": {
+          "version": "5.3.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.3.0.tgz",
+          "integrity": "sha512-0aP01LLIskjKs3lq52EC0aGBAJhLq7B2Rd8HC/DR/PtNNpcLilNmHC12O+hu0usQpo7wtHNRqtrhBwtDb0+dNg==",
+          "dev": true,
+          "requires": {
+            "has-flag": "3.0.0"
+          }
         }
       }
     },
     "tsutils": {
-      "version": "2.12.0",
+      "version": "2.26.1",
-      "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-2.12.0.tgz",
+      "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-2.26.1.tgz",
-      "integrity": "sha1-yJKoTI8vjeE/jvMsLFw4tFfM6sY=",
+      "integrity": "sha512-bnm9bcjOqOr1UljleL94wVCDlpa6KjfGaTkefeLch4GRafgDkROxPizbB/FxTEdI++5JqhxczRy/Qub0syNqZA==",
       "dev": true,
       "requires": {
-        "tslib": "1.7.1"
+        "tslib": "1.9.0"
       }
     },
     "tty-browserify": {

package.json

@@ -60,7 +60,7 @@
     "svg-sprite": "1.3.7",
     "ts-loader": "2.3.1",
     "ts-node": "3.0.4",
-    "tslint": "5.5.0",
+    "tslint": "5.9.1",
     "typescript": "2.5.2",
     "webpack": "2.4.1"
   },
@@ -76,11 +76,11 @@
     "test:uhk-web": "lerna exec --scope uhk-web npm test",
     "lint": "run-s -scn lint:ts lint:style",
     "lint:ts": "run-p -sn lint:ts:electron-main lint:ts:electron-renderer lint:ts:web lint:ts:test-serializer lint:ts:uhk-usb",
-    "lint:ts:electron-main": "tslint --type-check --project ./packages/uhk-agent/tsconfig.json",
+    "lint:ts:electron-main": "tslint --project ./packages/uhk-agent/tsconfig.json",
-    "lint:ts:electron-renderer": "tslint --type-check --project ./packages/uhk-web/src/tsconfig.renderer.json",
+    "lint:ts:electron-renderer": "tslint --project ./packages/uhk-web/src/tsconfig.renderer.json",
-    "lint:ts:web": "tslint --type-check --project ./packages/uhk-web/src/tsconfig.app.json",
+    "lint:ts:web": "tslint --project ./packages/uhk-web/src/tsconfig.app.json",
-    "lint:ts:test-serializer": "tslint --type-check --project ./packages/test-serializer/tsconfig.json",
+    "lint:ts:test-serializer": "tslint --project ./packages/test-serializer/tsconfig.json",
-    "lint:ts:uhk-usb": "tslint --type-check --project ./packages/uhk-usb/tsconfig.json",
+    "lint:ts:uhk-usb": "tslint --project ./packages/uhk-usb/tsconfig.json",
     "lint:style": "stylelint \"packages/uhk-agent/src/**/*.scss\" \"packages/uhk-web/src/**/*.scss\" --syntax scss",
     "build": "run-s build:common build:usb build:web build:electron",
     "build:web": "lerna exec --scope uhk-web npm run build",
@@ -92,6 +92,7 @@
     "server:web": "lerna exec --scope uhk-web npm start",
     "server:electron": "lerna exec --scope uhk-web npm run server:renderer",
     "electron": "lerna exec --scope uhk-agent npm start",
+    "electron:spe": "lerna exec --scope uhk-agent npm run electron:spe",
     "standard-version": "standard-version",
     "pack": "node ./scripts/release.js",
     "sprites": "node ./scripts/generate-svg-sprites",

packages/uhk-agent/package.json

@@ -30,6 +30,7 @@
   },
   "scripts": {
     "start": "electron ./dist/electron-main.js",
+    "electron:spe": "electron ./dist/electron-main.js --spe",
     "build": "webpack && npm run install:build-deps && npm run build:usb && npm run download-firmware && npm run copy-blhost",
     "build:usb": "electron-rebuild -w node-hid -p -m ./dist",
     "install:build-deps": "cd ./dist && npm i",

packages/uhk-agent/src/electron-main.ts

@@ -2,7 +2,7 @@
 /// <reference path="./custom_types/command-line-args.d.ts"/>
 
 import './polyfills';
-import { app, BrowserWindow, ipcMain } from 'electron';
+import { app, BrowserWindow } from 'electron';
 import { autoUpdater } from 'electron-updater';
 
 import * as path from 'path';
@@ -10,7 +10,7 @@ import * as url from 'url';
 import * as commandLineArgs from 'command-line-args';
 import { UhkHidDevice, UhkOperations } from 'uhk-usb';
 // import { ElectronDataStorageRepositoryService } from './services/electron-datastorage-repository.service';
-import { LogRegExps } from 'uhk-common';
+import { CommandLineArgs, LogRegExps } from 'uhk-common';
 import { DeviceService } from './services/device.service';
 import { logger } from './services/logger.service';
 import { AppUpdateService } from './services/app-update.service';
@@ -18,13 +18,13 @@ import { AppService } from './services/app.service';
 import { SudoService } from './services/sudo.service';
 import { UhkBlhost } from '../../uhk-usb/src';
 import * as isDev from 'electron-is-dev';
-import { CommandLineInputs } from './models/command-line-inputs';
 
 const optionDefinitions = [
-    {name: 'addons', type: Boolean}
+    {name: 'addons', type: Boolean},
+    {name: 'spe', type: Boolean} // simulate privilege escalation error
 ];
 
-const options: CommandLineInputs = commandLineArgs(optionDefinitions);
+const options: CommandLineArgs = commandLineArgs(optionDefinitions);
 
 // import './dev-extension';
 // require('electron-debug')({ showDevTools: true, enabled: true });
@@ -83,13 +83,13 @@ function createWindow() {
     });
     win.setMenuBarVisibility(false);
     win.maximize();
-    uhkHidDeviceService = new UhkHidDevice(logger);
+    uhkHidDeviceService = new UhkHidDevice(logger, options);
     uhkBlhost = new UhkBlhost(logger, packagesDir);
     uhkOperations = new UhkOperations(logger, uhkBlhost, uhkHidDeviceService, packagesDir);
     deviceService = new DeviceService(logger, win, uhkHidDeviceService, uhkOperations);
     appUpdateService = new AppUpdateService(logger, win, app);
     appService = new AppService(logger, win, deviceService, options, uhkHidDeviceService);
-    sudoService = new SudoService(logger);
+    sudoService = new SudoService(logger, options);
     // and load the index.html of the app.
 
     win.loadURL(url.format({

packages/uhk-agent/src/models/command-line-inputs.ts

@@ -1,3 +1,10 @@
 export interface CommandLineInputs {
+    /**
+     * addons menu visible or not
+     */
     addons?: boolean;
+    /**
+     * simulate privilege escalation error
+     */
+    spe?: boolean;
 }

packages/uhk-agent/src/services/sudo.service.ts

@@ -5,12 +5,13 @@ import * as sudo from 'sudo-prompt';
 import { dirSync } from 'tmp';
 import { emptyDir, copy } from 'fs-extra';
 
-import { IpcEvents, LogService, IpcResponse } from 'uhk-common';
+import { CommandLineArgs, IpcEvents, LogService, IpcResponse } from 'uhk-common';
 
 export class SudoService {
     private rootDir: string;
 
-    constructor(private logService: LogService) {
+    constructor(private logService: LogService,
+                private options: CommandLineArgs) {
         if (isDev) {
             this.rootDir = path.join(path.join(process.cwd(), process.argv[1]), '../../../../');
         } else {
@@ -21,6 +22,19 @@ export class SudoService {
     }
 
     private async setPrivilege(event: Electron.Event) {
+        if (this.options.spe) {
+            const error = new Error('No polkit authentication agent found.');
+            this.logService.error('[SudoService] Simulate privilege escalation error ', error);
+
+            const response = new IpcResponse();
+            response.success = false;
+            response.error = {message: error.message};
+
+            event.sender.send(IpcEvents.device.setPrivilegeOnLinuxReply, response);
+
+            return;
+        }
+
         switch (process.platform) {
             case 'linux':
                 await this.setPrivilegeOnLinux(event);
@@ -28,7 +42,7 @@ export class SudoService {
             default:
                 const response: IpcResponse = {
                     success: false,
-                    error: { message: 'Permissions couldn\'t be set. Invalid platform: ' + process.platform }
+                    error: {message: 'Permissions couldn\'t be set. Invalid platform: ' + process.platform}
                 };
 
                 event.sender.send(IpcEvents.device.setPrivilegeOnLinuxReply, response);
@@ -39,7 +53,7 @@ export class SudoService {
     private async setPrivilegeOnLinux(event: Electron.Event) {
         const tmpDirectory = dirSync();
         const rulesDir = path.join(this.rootDir, 'rules');
-        this.logService.debug('[SudoService] Copy rules dir', { src: rulesDir, dst: tmpDirectory.name });
+        this.logService.debug('[SudoService] Copy rules dir', {src: rulesDir, dst: tmpDirectory.name});
         await copy(rulesDir, tmpDirectory.name);
 
         const scriptPath = path.join(tmpDirectory.name, 'setup-rules.sh');
@@ -55,7 +69,7 @@ export class SudoService {
             if (error) {
                 this.logService.error('[SudoService] Error when set privilege: ', error);
                 response.success = false;
-                response.error = error;
+                response.error = {message: error.message};
             } else {
                 response.success = true;
             }

packages/uhk-common/src/models/command-line-args.ts

@@ -1,3 +1,10 @@
 export interface CommandLineArgs {
-    addons: boolean;
+    /**
+     * addons menu visible or not
+     */
+    addons?: boolean;
+    /**
+     * simulate privilege escalation error
+     */
+    spe?: boolean;
 }

packages/uhk-usb/src/uhk-hid-device.ts

@@ -1,5 +1,5 @@
 import { Device, devices, HID } from 'node-hid';
-import { LogService } from 'uhk-common';
+import { CommandLineArgs, LogService } from 'uhk-common';
 
 import {
     ConfigBufferId,
@@ -27,7 +27,8 @@ export class UhkHidDevice {
     private _device: HID;
     private _hasPermission = false;
 
-    constructor(private logService: LogService) {
+    constructor(private logService: LogService,
+                private options: CommandLineArgs) {
     }
 
     /**
@@ -38,6 +39,10 @@ export class UhkHidDevice {
      * @returns {boolean}
      */
     public hasPermission(): boolean {
+        if (this.options.spe) {
+            return false;
+        }
+
         try {
             if (this._hasPermission) {
                 return true;

packages/uhk-web/package-lock.json

@@ -6167,6 +6167,19 @@
 				"deep-freeze-strict": "1.1.1"
 			}
 		},
+		"ngx-clipboard": {
+			"version": "8.0.0",
+			"resolved": "https://registry.npmjs.org/ngx-clipboard/-/ngx-clipboard-8.0.0.tgz",
+			"integrity": "sha1-EJjC3G/oyAmJo1OUvlFvvwvJR3c=",
+			"requires": {
+				"ngx-window-token": "0.0.2"
+			}
+		},
+		"ngx-window-token": {
+			"version": "0.0.2",
+			"resolved": "https://registry.npmjs.org/ngx-window-token/-/ngx-window-token-0.0.2.tgz",
+			"integrity": "sha1-aA7phrvm+V0H2q3xVMDs815YmSA="
+		},
 		"no-case": {
 			"version": "2.3.2",
 			"resolved": "https://registry.npmjs.org/no-case/-/no-case-2.3.2.tgz",

packages/uhk-web/package.json

@@ -72,6 +72,7 @@
     "ng2-dragula": "1.5.0",
     "ng2-nouislider": "^1.7.6",
     "ng2-select2": "1.0.0-beta.10",
+    "ngx-clipboard": "8.0.0",
     "ngrx-store-freeze": "0.1.9",
     "node-hid": "0.5.4",
     "nouislider": "^10.1.0",

packages/uhk-web/src/app/components/privilege-checker/privilege-checker.component.html

@@ -1,4 +1,39 @@
-<span class="privilege-checker-wrapper">
+<div class="privilege-checker-wrapper">
-    <uhk-message header="Cannot talk to your UHK" subtitle="Your UHK has been detected, but its permissions are not set up yet, so Agent can't talk to it."></uhk-message>
+    <uhk-message header="Cannot talk to your UHK"
-    <button class="btn btn-default btn-lg btn-primary" (click)="setUpPermissions()"> Set up permissions </button>
+                 subtitle="Your UHK has been detected, but its permissions are not set up yet, so Agent can't talk to it."></uhk-message>
-</span>
+
+    <button class="btn btn-default btn-lg btn-primary"
+            (click)="setUpPermissions()"> Set up permissions
+    </button>
+
+    <div class="mt-10">
+        <a class="link-inline"
+           *ngIf="state.showWhatWillThisDo"
+           (click)="whatWillThisDo()">What will this do?
+        </a>
+
+        <div>
+            <p class="privilege-error"
+               #privilegeError
+               *ngIf="state.permissionSetupFailed">
+                Agent wasn't able to set up permissions via PolicyKit. This is most likely because the
+                <code>polkit</code> package is not installed on your system.
+            </p>
+
+            <div *ngIf="state.showWhatWillThisDoContent">
+                Agent uses the following script to set up permissions. You can run it manually as root, then
+                <a class="link-inline"
+                   (click)="retry()">retry</a>.
+                <div class="copy-container">
+                    <span class="fa  fa-2x fa-copy"
+                          ngxClipboard
+                          [cbContent]="command"
+                          title="Copy to clipboard"
+                          data-toggle="tooltip"
+                          data-placement="top"></span>
+                    <pre><code>{{ command }}</code></pre>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>

packages/uhk-web/src/app/components/privilege-checker/privilege-checker.component.scss

@@ -9,3 +9,19 @@
 uhk-message {
     max-width: 50%;
 }
+
+.privilege-error {
+    animation: error-fade-in 2s;
+}
+
+@keyframes error-fade-in {
+    0% {
+        color: white;
+        background-color: red;
+    }
+
+    100% {
+        color: inherit;
+        background-color: inherit;
+    }
+}

packages/uhk-web/src/app/components/privilege-checker/privilege-checker.component.ts

@@ -1,26 +1,61 @@
-import { Component } from '@angular/core';
+import { ChangeDetectionStrategy, ChangeDetectorRef, Component, OnDestroy, OnInit } from '@angular/core';
-import { Router } from '@angular/router';
 import { Store } from '@ngrx/store';
-import 'rxjs/add/observable/of';
+import { Subscription } from 'rxjs/Subscription';
-import 'rxjs/add/observable/throw';
-import 'rxjs/add/operator/distinctUntilChanged';
-import 'rxjs/add/operator/ignoreElements';
-import 'rxjs/add/operator/takeWhile';
 
-import { AppState } from '../../store/index';
+import { AppState, getPrivilegePageState } from '../../store';
 import { SetPrivilegeOnLinuxAction } from '../../store/actions/device';
+import { LoadAppStartInfoAction, PrivilegeWhatWillThisDoAction } from '../../store/actions/app';
+import { PrivilagePageSate } from '../../models/privilage-page-sate';
 
 @Component({
     selector: 'privilege-checker',
+    changeDetection: ChangeDetectionStrategy.OnPush,
     templateUrl: './privilege-checker.component.html',
     styleUrls: ['./privilege-checker.component.scss']
 })
-export class PrivilegeCheckerComponent {
 
-    constructor(protected store: Store<AppState>) {
+export class PrivilegeCheckerComponent implements OnInit, OnDestroy {
+
+    state: PrivilagePageSate;
+
+    command = `cat <<EOF >/etc/udev/rules.d/50-uhk60.rules
+# Ultimate Hacking Keyboard rules
+# These are the udev rules for accessing the USB interfaces of the UHK as non-root users.
+# Copy this file to /etc/udev/rules.d and physically reconnect the UHK afterwards.
+SUBSYSTEMS=="usb", ATTRS{idVendor}=="1d50", ATTRS{idProduct}=="612[0-7]", MODE:="0666"
+EOF
+udevadm trigger
+udevadm settle`;
+
+    private stateSubscription: Subscription;
+
+    constructor(private store: Store<AppState>,
+                private cdRef: ChangeDetectorRef) {
+    }
+
+    ngOnInit(): void {
+        this.stateSubscription = this.store.select(getPrivilegePageState)
+            .subscribe(state => {
+                this.state = state;
+                this.cdRef.markForCheck();
+            });
+    }
+
+    ngOnDestroy(): void {
+        if (this.stateSubscription) {
+            this.stateSubscription.unsubscribe();
+        }
     }
 
     setUpPermissions(): void {
         this.store.dispatch(new SetPrivilegeOnLinuxAction());
     }
+
+    whatWillThisDo(): void {
+        this.store.dispatch(new PrivilegeWhatWillThisDoAction());
+    }
+
+    retry(): void {
+        this.store.dispatch(new LoadAppStartInfoAction());
+    }
 }

packages/uhk-web/src/app/models/privilage-page-sate.ts

@@ -0,0 +1,5 @@
+export interface PrivilagePageSate {
+    showWhatWillThisDo: boolean;
+    showWhatWillThisDoContent: boolean;
+    permissionSetupFailed: boolean;
+}

packages/uhk-web/src/app/shared.module.ts

@@ -8,6 +8,7 @@ import { ConfirmationPopoverModule } from 'angular-confirmation-popover';
 import { DragulaModule } from 'ng2-dragula/ng2-dragula';
 import { Select2Module } from 'ng2-select2/ng2-select2';
 import { NouisliderModule } from 'ng2-nouislider';
+import { ClipboardModule } from 'ngx-clipboard';
 
 import { AddOnComponent } from './components/add-on';
 import { KeyboardSliderComponent } from './components/keyboard/slider';
@@ -186,7 +187,8 @@ import { Autofocus } from './directives/autofocus/autofocus.directive';
         NotifierModule.withConfig(angularNotifierConfig),
         ConfirmationPopoverModule.forRoot({
             confirmButtonType: 'danger' // set defaults here
-        })
+        }),
+        ClipboardModule
     ],
     providers: [
         SvgModuleProviderService,

packages/uhk-web/src/app/store/actions/app.ts

@@ -17,7 +17,10 @@ export const ActionTypes = {
     DISMISS_UNDO_NOTIFICATION: type(PREFIX + 'dismiss notification action'),
     LOAD_HARDWARE_CONFIGURATION_SUCCESS: type(PREFIX + 'load hardware configuration success'),
     ELECTRON_MAIN_LOG_RECEIVED: type(PREFIX + 'Electron main log received'),
-    OPEN_URL_IN_NEW_WINDOW: type(PREFIX + 'Open URL in new Window')
+    OPEN_URL_IN_NEW_WINDOW: type(PREFIX + 'Open URL in new Window'),
+    PRIVILEGE_WHAT_WILL_THIS_DO: type(PREFIX + 'What will this do clicked'),
+    SETUP_PERMISSION_ERROR: type(PREFIX + 'Setup permission error'),
+    LOAD_APP_START_INFO: type(PREFIX + 'Load app start info')
 };
 
 export class AppBootsrappedAction implements Action {
@@ -31,25 +34,29 @@ export class AppStartedAction implements Action {
 export class ShowNotificationAction implements Action {
     type = ActionTypes.APP_SHOW_NOTIFICATION;
 
-    constructor(public payload: Notification) { }
+    constructor(public payload: Notification) {
+    }
 }
 
 export class ApplyCommandLineArgsAction implements Action {
     type = ActionTypes.APPLY_COMMAND_LINE_ARGS;
 
-    constructor(public payload: CommandLineArgs) { }
+    constructor(public payload: CommandLineArgs) {
+    }
 }
 
 export class ProcessAppStartInfoAction implements Action {
     type = ActionTypes.APP_PROCESS_START_INFO;
 
-    constructor(public payload: AppStartInfo) { }
+    constructor(public payload: AppStartInfo) {
+    }
 }
 
 export class UndoLastAction implements Action {
     type = ActionTypes.UNDO_LAST;
 
-    constructor(public payload: any) {}
+    constructor(public payload: any) {
+    }
 }
 
 export class UndoLastSuccessAction implements Action {
@@ -63,19 +70,37 @@ export class DismissUndoNotificationAction implements Action {
 export class LoadHardwareConfigurationSuccessAction implements Action {
     type = ActionTypes.LOAD_HARDWARE_CONFIGURATION_SUCCESS;
 
-    constructor(public payload: HardwareConfiguration) {}
+    constructor(public payload: HardwareConfiguration) {
+    }
 }
 
 export class ElectronMainLogReceivedAction implements Action {
     type = ActionTypes.ELECTRON_MAIN_LOG_RECEIVED;
 
-    constructor(public payload: ElectronLogEntry) {}
+    constructor(public payload: ElectronLogEntry) {
+    }
 }
 
 export class OpenUrlInNewWindowAction implements Action {
     type = ActionTypes.OPEN_URL_IN_NEW_WINDOW;
 
-    constructor(public payload: string) {}
+    constructor(public payload: string) {
+    }
+}
+
+export class PrivilegeWhatWillThisDoAction implements Action {
+    type = ActionTypes.PRIVILEGE_WHAT_WILL_THIS_DO;
+}
+
+export class SetupPermissionErrorAction implements Action {
+    type = ActionTypes.SETUP_PERMISSION_ERROR;
+
+    constructor(public payload: string) {
+    }
+}
+
+export class LoadAppStartInfoAction implements Action {
+    type = ActionTypes.LOAD_APP_START_INFO;
 }
 
 export type Actions
@@ -90,4 +115,7 @@ export type Actions
     | LoadHardwareConfigurationSuccessAction
     | ElectronMainLogReceivedAction
     | OpenUrlInNewWindowAction
+    | PrivilegeWhatWillThisDoAction
+    | SetupPermissionErrorAction
+    | LoadAppStartInfoAction
     ;

packages/uhk-web/src/app/store/effects/app.ts

@@ -40,6 +40,13 @@ export class ApplicationEffects {
             this.logService.info('Renderer appStart effect end');
         });
 
+    @Effect({dispatch: false})
+    appStartInfo$: Observable<Action> = this.actions$
+        .ofType(ActionTypes.LOAD_APP_START_INFO)
+        .do(() => {
+            this.appRendererService.getAppStartInfo();
+        });
+
     @Effect({dispatch: false})
     showNotification$: Observable<Action> = this.actions$
         .ofType<ShowNotificationAction>(ActionTypes.APP_SHOW_NOTIFICATION)

packages/uhk-web/src/app/store/effects/device.ts

@@ -31,7 +31,7 @@ import {
     UpdateFirmwareWithAction
 } from '../actions/device';
 import { DeviceRendererService } from '../../services/device-renderer.service';
-import { ShowNotificationAction } from '../actions/app';
+import { SetupPermissionErrorAction, ShowNotificationAction } from '../actions/app';
 import { AppState } from '../index';
 import {
     ActionTypes as UserConfigActions,
@@ -78,21 +78,15 @@ export class DeviceEffects {
     setPrivilegeOnLinuxReply$: Observable<Action> = this.actions$
         .ofType<SetPrivilegeOnLinuxReplyAction>(ActionTypes.SET_PRIVILEGE_ON_LINUX_REPLY)
         .map(action => action.payload)
-        .mergeMap((response: any) => {
+        .map((response: any): any => {
             if (response.success) {
-                return [
+                return new ConnectionStateChangedAction({
-                    new ConnectionStateChangedAction({
+                    connected: true,
-                        connected: true,
+                    hasPermission: true
-                        hasPermission: true
+                });
-                    })
-                ];
             }
-            return [
+
-                <any>new ShowNotificationAction({
+            return new SetupPermissionErrorAction(response.error);
-                    type: NotificationType.Error,
-                    message: response.error.message || response.error
-                })
-            ];
         });
 
     @Effect({dispatch: false})
@@ -166,8 +160,8 @@ export class DeviceEffects {
     @Effect() saveResetUserConfigurationToDevice$ = this.actions$
         .ofType<ApplyUserConfigurationFromFileAction
             | LoadResetUserConfigurationAction>(
-                UserConfigActions.LOAD_RESET_USER_CONFIGURATION,
+            UserConfigActions.LOAD_RESET_USER_CONFIGURATION,
-                UserConfigActions.APPLY_USER_CONFIGURATION_FROM_FILE)
+            UserConfigActions.APPLY_USER_CONFIGURATION_FROM_FILE)
         .map(action => action.payload)
         .switchMap((config: UserConfiguration) => {
             this.dataStorageRepository.saveConfig(config);

packages/uhk-web/src/app/store/index.ts

@@ -51,6 +51,7 @@ export const getHardwareConfiguration = createSelector(appState, fromApp.getHard
 export const getKeyboardLayout = createSelector(appState, fromApp.getKeyboardLayout);
 export const deviceConfigurationLoaded = createSelector(appState, fromApp.deviceConfigurationLoaded);
 export const getAgentVersionInfo = createSelector(appState, fromApp.getAgentVersionInfo);
+export const getPrivilegePageState = createSelector(appState, fromApp.getPrivilagePageState);
 
 export const appUpdateState = (state: AppState) => state.appUpdate;
 export const getShowAppUpdateAvailable = createSelector(appUpdateState, fromAppUpdate.getShowAppUpdateAvailable);

packages/uhk-web/src/app/store/reducers/app.reducer.ts

@@ -1,13 +1,20 @@
 import { ROUTER_NAVIGATION } from '@ngrx/router-store';
 import { Action } from '@ngrx/store';
-import { VersionInformation } from 'uhk-common';
+import {
+    HardwareConfiguration,
+    Notification,
+    NotificationType,
+    runInElectron,
+    UserConfiguration,
+    VersionInformation
+} from 'uhk-common';
 
-import { HardwareConfiguration, Notification, NotificationType, runInElectron, UserConfiguration } from 'uhk-common';
 import { ActionTypes, ShowNotificationAction } from '../actions/app';
 import { ActionTypes as UserConfigActionTypes } from '../actions/user-config';
 import { ActionTypes as DeviceActionTypes } from '../actions/device';
 import { KeyboardLayout } from '../../keyboard/keyboard-layout.enum';
 import { getVersions } from '../../util';
+import { PrivilagePageSate } from '../../models/privilage-page-sate';
 
 export interface State {
     started: boolean;
@@ -19,6 +26,8 @@ export interface State {
     configLoading: boolean;
     hardwareConfig?: HardwareConfiguration;
     agentVersionInfo?: VersionInformation;
+    privilegeWhatWillThisDoClicked: boolean;
+    permissionError?: any;
 }
 
 export const initialState: State = {
@@ -27,7 +36,8 @@ export const initialState: State = {
     navigationCountAfterNotification: 0,
     runningInElectron: runInElectron(),
     configLoading: true,
-    agentVersionInfo: getVersions()
+    agentVersionInfo: getVersions(),
+    privilegeWhatWillThisDoClicked: false
 };
 
 export function reducer(state = initialState, action: Action & { payload: any }) {
@@ -115,6 +125,24 @@ export function reducer(state = initialState, action: Action & { payload: any })
             };
         }
 
+        case ActionTypes.PRIVILEGE_WHAT_WILL_THIS_DO:
+            return {
+                ...state,
+                privilegeWhatWillThisDoClicked: true
+            };
+
+        case ActionTypes.SETUP_PERMISSION_ERROR:
+            return {
+                ...state,
+                permissionError: action.payload
+            };
+
+        case DeviceActionTypes.SET_PRIVILEGE_ON_LINUX:
+            return {
+                ...state,
+                permissionError: null
+            };
+
         default:
             return state;
     }
@@ -134,3 +162,12 @@ export const getKeyboardLayout = (state: State): KeyboardLayout => {
 };
 export const deviceConfigurationLoaded = (state: State) => !state.runningInElectron ? true : !!state.hardwareConfig;
 export const getAgentVersionInfo = (state: State) => state.agentVersionInfo || {} as VersionInformation;
+export const getPrivilagePageState = (state: State): PrivilagePageSate => {
+    const permissionSetupFailed = !!state.permissionError;
+
+    return {
+        permissionSetupFailed,
+        showWhatWillThisDo: !state.privilegeWhatWillThisDoClicked && !permissionSetupFailed,
+        showWhatWillThisDoContent: state.privilegeWhatWillThisDoClicked || permissionSetupFailed
+    };
+};

packages/uhk-web/src/styles.scss

@@ -115,3 +115,43 @@ a.disabled {
         display: block;
     }
 }
+
+a.link-inline {
+    cursor: pointer;
+}
+
+@mixin code-style() {
+    color: #6a737d;
+    background-color: #f6f8fa;
+    text-align: left;
+}
+
+code {
+    @include code-style();
+}
+
+pre {
+    code {
+        @include code-style();
+    }
+}
+
+.mt-10 {
+    margin-top: 10px;
+}
+
+.copy-container {
+    position: relative;
+
+    .fa-copy {
+        cursor: pointer;
+        color: #6a737d;
+        position: absolute;
+        right: 4px;
+        top: 4px;
+
+        &:hover {
+            color: darken(#6a737d, 15);
+        }
+    }
+}