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integrityService.ts
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integrityService.ts
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { localize } from '../../../../nls.js';
import Severity from '../../../../base/common/severity.js';
import { URI } from '../../../../base/common/uri.js';
import { ChecksumPair, IIntegrityService, IntegrityTestResult } from '../common/integrity.js';
import { ILifecycleService, LifecyclePhase } from '../../lifecycle/common/lifecycle.js';
import { IProductService } from '../../../../platform/product/common/productService.js';
import { INotificationService, NotificationPriority } from '../../../../platform/notification/common/notification.js';
import { IStorageService, StorageScope, StorageTarget } from '../../../../platform/storage/common/storage.js';
import { InstantiationType, registerSingleton } from '../../../../platform/instantiation/common/extensions.js';
import { IOpenerService } from '../../../../platform/opener/common/opener.js';
import { FileAccess, AppResourcePath } from '../../../../base/common/network.js';
import { IChecksumService } from '../../../../platform/checksum/common/checksumService.js';
import { ILogService } from '../../../../platform/log/common/log.js';
interface IStorageData {
readonly dontShowPrompt: boolean;
readonly commit: string | undefined;
}
class IntegrityStorage {
private static readonly KEY = 'integrityService';
private value: IStorageData | null;
constructor(private readonly storageService: IStorageService) {
this.value = this._read();
}
private _read(): IStorageData | null {
const jsonValue = this.storageService.get(IntegrityStorage.KEY, StorageScope.APPLICATION);
if (!jsonValue) {
return null;
}
try {
return JSON.parse(jsonValue);
} catch (err) {
return null;
}
}
get(): IStorageData | null {
return this.value;
}
set(data: IStorageData | null): void {
this.value = data;
this.storageService.store(IntegrityStorage.KEY, JSON.stringify(this.value), StorageScope.APPLICATION, StorageTarget.MACHINE);
}
}
export class IntegrityService implements IIntegrityService {
declare readonly _serviceBrand: undefined;
private readonly _storage = new IntegrityStorage(this.storageService);
private readonly _isPurePromise = this._isPure();
isPure(): Promise<IntegrityTestResult> {
return this._isPurePromise;
}
constructor(
@INotificationService private readonly notificationService: INotificationService,
@IStorageService private readonly storageService: IStorageService,
@ILifecycleService private readonly lifecycleService: ILifecycleService,
@IOpenerService private readonly openerService: IOpenerService,
@IProductService private readonly productService: IProductService,
@IChecksumService private readonly checksumService: IChecksumService,
@ILogService private readonly logService: ILogService
) {
this._compute();
}
private async _compute(): Promise<void> {
const { isPure } = await this.isPure();
if (isPure) {
return; // all is good
}
this.logService.warn(`
----------------------------------------------
*** Installation has been modified on disk ***
----------------------------------------------
`);
const storedData = this._storage.get();
if (storedData?.dontShowPrompt && storedData.commit === this.productService.commit) {
return; // Do not prompt
}
this._showNotification();
}
private async _isPure(): Promise<IntegrityTestResult> {
const expectedChecksums = this.productService.checksums || {};
await this.lifecycleService.when(LifecyclePhase.Eventually);
const allResults = await Promise.all(Object.keys(expectedChecksums).map(filename => this._resolve(<AppResourcePath>filename, expectedChecksums[filename])));
let isPure = true;
for (let i = 0, len = allResults.length; i < len; i++) {
if (!allResults[i].isPure) {
isPure = false;
break;
}
}
return {
isPure,
proof: allResults
};
}
private async _resolve(filename: AppResourcePath, expected: string): Promise<ChecksumPair> {
const fileUri = FileAccess.asFileUri(filename);
try {
const checksum = await this.checksumService.checksum(fileUri);
return IntegrityService._createChecksumPair(fileUri, checksum, expected);
} catch (error) {
return IntegrityService._createChecksumPair(fileUri, '', expected);
}
}
private static _createChecksumPair(uri: URI, actual: string, expected: string): ChecksumPair {
return {
uri: uri,
actual: actual,
expected: expected,
isPure: (actual === expected)
};
}
private _showNotification(): void {
const checksumFailMoreInfoUrl = this.productService.checksumFailMoreInfoUrl;
const message = localize('integrity.prompt', "Your {0} installation appears to be corrupt. Please reinstall.", this.productService.nameShort);
if (checksumFailMoreInfoUrl) {
this.notificationService.prompt(
Severity.Warning,
message,
[
{
label: localize('integrity.moreInformation', "More Information"),
run: () => this.openerService.open(URI.parse(checksumFailMoreInfoUrl))
},
{
label: localize('integrity.dontShowAgain', "Don't Show Again"),
isSecondary: true,
run: () => this._storage.set({ dontShowPrompt: true, commit: this.productService.commit })
}
],
{
sticky: true,
priority: NotificationPriority.URGENT
}
);
} else {
this.notificationService.notify({
severity: Severity.Warning,
message,
sticky: true,
priority: NotificationPriority.URGENT
});
}
}
}
registerSingleton(IIntegrityService, IntegrityService, InstantiationType.Delayed);