Linux permission setup

Closes #260

electron/src/components/privilege-checker/privilege-checker.component.ts

@@ -2,12 +2,17 @@ import { Component } from '@angular/core';
 import { Router } from '@angular/router';
 
 import { Observable } from 'rxjs/Observable';
+import { ReplaySubject } from 'rxjs/ReplaySubject';
 import 'rxjs/add/observable/of';
 import 'rxjs/add/observable/throw';
 import 'rxjs/add/operator/distinctUntilChanged';
 import 'rxjs/add/operator/ignoreElements';
 import 'rxjs/add/operator/takeWhile';
 
+import { remote } from 'electron';
+import * as path from 'path';
+import * as sudo from 'sudo-prompt';
+
 import { UhkDeviceService } from './../../services/uhk-device.service';
 
 @Component({
@@ -27,13 +32,44 @@ export class PrivilegeCheckerComponent {
                     router.navigate(['/detection']);
                 }
             });
-
     }
 
-    checkPermissions(): Observable<boolean> {
-        return Observable.of(true);
+    setUpPermissions(): void {
+        let permissionSetter: Observable<void>;
+        switch (process.platform) {
+            case 'linux':
+                permissionSetter = this.setUpPermissionsOnLinux();
+                break;
+            default:
+                permissionSetter = Observable.throw('Permissions couldn\'t be set. Invalid platform: ' + process.platform);
+                break;
+        }
+        permissionSetter.subscribe({
+            error: e => console.error(e),
+            complete: () => {
+                console.log('Permissions has been successfully set');
+                this.uhkDevice.initialize();
+                this.router.navigate(['/']);
+            }
+        });
     }
 
-    setUpPermissions() { }
+    private setUpPermissionsOnLinux(): Observable<void> {
+        const subject = new ReplaySubject<void>();
+        const rootDir = path.resolve(path.join(remote.process.cwd(), remote.process.argv[1]), '..');
+        const scriptPath = path.resolve(rootDir, 'rules/setup-rules.sh');
+        const options = {
+            name: 'Setting UHK access rules'
+        };
+        sudo.exec(`sh ${scriptPath}`, options, (error: any) => {
+            if (error) {
+                subject.error(error);
+            } else {
+                subject.complete();
+            }
+        });
+
+        return subject.asObservable();
+    }
 
 }

electron/src/custom_types/sudo-prompt.d.ts

@@ -0,0 +1 @@
+declare module 'sudo-prompt';

electron/src/vendor.ts

@@ -0,0 +1,3 @@
+import './shared/vendor.ts';
+
+import 'sudo-prompt';

electron/src/webpack.config.js

@@ -10,7 +10,7 @@ var rootDir = path.resolve(__dirname, '../');
 module.exports = {
     entry: {
         polyfills: path.resolve(rootDir, 'src/shared/polyfills.ts'),
-        vendor: path.resolve(rootDir, 'src/shared/vendor.ts'),
+        vendor: path.resolve(rootDir, 'src/vendor.ts'),
         app: path.resolve(rootDir, 'src/main.ts')
     },
     output: {
@@ -75,6 +75,10 @@ module.exports = {
                     from: 'images',
                     to: 'images'
                 },
+                {
+                    from: 'rules',
+                    to: 'rules'
+                },
                 {
                     from: 'node_modules/usb',
                     to: 'vendor/usb'

package.json

@@ -59,6 +59,7 @@
     "ng2-select2": "1.0.0-beta.10",
     "rxjs": "5.1.1",
     "select2": "^4.0.3",
+    "sudo-prompt": "^6.2.1",
     "typescript": "2.1.6",
     "usb": "git+https://github.com/aktary/node-usb.git",
     "xml-loader": "^1.1.0",

rules/50-uhk-write-access.rules

@@ -1,5 +1,5 @@
 # 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.
 # TODO: Restore VID to 16d0 for the latest prototype.
-SUBSYSTEMS=="usb", ATTRS{idVendor}=="16d2", ATTRS{idProduct}=="05e[abcd]", MODE:="0666"
-KERNEL=="ttyACM*", ATTRS{idVendor}=="16d2", ATTRS{idProduct}=="05ec", MODE:="0666", SYMLINK+="uhk-right-bootloader"
+SUBSYSTEMS=="usb", ATTRS{idVendor}=="16d3", ATTRS{idProduct}=="05e[abcd]", MODE:="0666"
+KERNEL=="ttyACM*", ATTRS{idVendor}=="16d3", ATTRS{idProduct}=="05ec", MODE:="0666", SYMLINK+="uhk-right-bootloader"

rules/setup-rules.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+cd $(dirname $0)
+cp 50-uhk-write-access.rules /etc/udev/rules.d
+udevadm trigger
+udevadm settle