mirror of
https://github.com/bitwarden/browser
synced 2025-12-06 00:13:28 +00:00
[PM-26944] fix(browser/phishing-detection): fix various issues (#17197)
This commit is contained in:
Will Martin
GitHub
@@ -1472,6 +1472,7 @@ export default class MainBackground {
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this.configService,
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this.logService,
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this.phishingDataService,
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messageListener,
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);
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this.ipcContentScriptManagerService = new IpcContentScriptManagerService(this.configService);
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@@ -9,7 +9,7 @@
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<p bitTypography="body1">{{ "phishingPageSummary" | i18n }}</p>
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<bit-callout class="tw-mb-0" type="danger" icon="bwi-globe" [title]="null">
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<span class="tw-font-mono">{{ phishingHost$ | async }}</span>
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<span class="tw-font-mono tw-break-all">{{ phishingHostname$ | async }}</span>
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</bit-callout>
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<bit-callout class="tw-mt-2" [icon]="null" type="default">
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@@ -4,9 +4,10 @@ import { CommonModule } from "@angular/common";
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import { Component, inject } from "@angular/core";
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// eslint-disable-next-line no-restricted-imports
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import { ActivatedRoute, RouterModule } from "@angular/router";
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import { map } from "rxjs";
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import { firstValueFrom, map } from "rxjs";
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import { JslibModule } from "@bitwarden/angular/jslib.module";
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import { BrowserApi } from "@bitwarden/browser/platform/browser/browser-api";
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import {
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AsyncActionsModule,
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ButtonModule,
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@@ -18,8 +19,12 @@ import {
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CalloutComponent,
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TypographyModule,
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} from "@bitwarden/components";
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import { MessageSender } from "@bitwarden/messaging";
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import { PhishingDetectionService } from "../services/phishing-detection.service";
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import {
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PHISHING_DETECTION_CANCEL_COMMAND,
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PHISHING_DETECTION_CONTINUE_COMMAND,
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} from "../services/phishing-detection.service";
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// FIXME(https://bitwarden.atlassian.net/browse/CL-764): Migrate to OnPush
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// eslint-disable-next-line @angular-eslint/prefer-on-push-component-change-detection
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@@ -44,14 +49,29 @@ import { PhishingDetectionService } from "../services/phishing-detection.service
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})
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export class PhishingWarning {
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private activatedRoute = inject(ActivatedRoute);
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protected phishingHost$ = this.activatedRoute.queryParamMap.pipe(
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map((params) => params.get("phishingHost") || ""),
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private messageSender = inject(MessageSender);
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private phishingUrl$ = this.activatedRoute.queryParamMap.pipe(
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map((params) => params.get("phishingUrl") || ""),
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);
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protected phishingHostname$ = this.phishingUrl$.pipe(map((url) => new URL(url).hostname));
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async closeTab() {
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await PhishingDetectionService.requestClosePhishingWarningPage();
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const tabId = await this.getTabId();
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this.messageSender.send(PHISHING_DETECTION_CANCEL_COMMAND, {
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tabId,
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});
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}
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async continueAnyway() {
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await PhishingDetectionService.requestContinueToDangerousUrl();
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const url = await firstValueFrom(this.phishingUrl$);
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const tabId = await this.getTabId();
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this.messageSender.send(PHISHING_DETECTION_CONTINUE_COMMAND, {
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tabId,
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url,
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});
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}
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private async getTabId() {
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return BrowserApi.getCurrentTab()?.then((tab) => tab.id);
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}
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}
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@@ -10,6 +10,7 @@ import { EnvironmentService } from "@bitwarden/common/platform/abstractions/envi
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import { I18nService } from "@bitwarden/common/platform/abstractions/i18n.service";
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import { PlatformUtilsService } from "@bitwarden/common/platform/abstractions/platform-utils.service";
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import { AnonLayoutComponent, I18nMockService } from "@bitwarden/components";
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import { MessageSender } from "@bitwarden/messaging";
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import { PhishingWarning } from "./phishing-warning.component";
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import { ProtectedByComponent } from "./protected-by-component";
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@@ -49,6 +50,13 @@ export default {
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provide: PlatformUtilsService,
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useClass: MockPlatformUtilsService,
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},
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{
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provide: MessageSender,
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useValue: {
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// eslint-disable-next-line no-console
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send: (...args: any[]) => console.debug("MessageSender called with:", args),
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} as Partial<MessageSender>,
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},
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{
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provide: I18nService,
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useFactory: () =>
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@@ -79,7 +87,7 @@ export default {
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}).asObservable(),
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},
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},
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mockActivatedRoute({ phishingHost: "malicious-example.com" }),
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mockActivatedRoute({ phishingUrl: "http://malicious-example.com" }),
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],
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}),
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],
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@@ -95,14 +103,7 @@ export default {
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</auth-anon-layout>
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`,
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}),
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argTypes: {
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phishingHost: {
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control: "text",
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description: "The suspicious host that was blocked",
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},
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},
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args: {
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phishingHost: "malicious-example.com",
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pageIcon: DeactivatedOrg,
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},
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} satisfies Meta<StoryArgs & { pageIcon: any }>;
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@@ -110,26 +111,20 @@ export default {
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type Story = StoryObj<StoryArgs & { pageIcon: any }>;
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export const Default: Story = {
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args: {
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phishingHost: "malicious-example.com",
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},
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decorators: [
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moduleMetadata({
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providers: [mockActivatedRoute({ phishingHost: "malicious-example.com" })],
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providers: [mockActivatedRoute({ phishingUrl: "http://malicious-example.com" })],
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}),
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],
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};
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export const LongHostname: Story = {
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args: {
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phishingHost: "very-long-suspicious-phishing-domain-name-that-might-wrap.malicious-example.com",
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},
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decorators: [
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moduleMetadata({
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providers: [
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mockActivatedRoute({
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phishingHost:
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"very-long-suspicious-phishing-domain-name-that-might-wrap.malicious-example.com",
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phishingUrl:
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"http://verylongsuspiciousphishingdomainnamethatmightwrapmaliciousexample.com",
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}),
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],
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}),
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@@ -1 +1 @@
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<span class="tw-text-muted">{{ "protectedBy" | i18n: "Bitwarden Phishing Blocker" }}</span>
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<span class="tw-text-muted">{{ "protectedBy" | i18n: "Bitwarden phishing blocker" }}</span>
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@@ -5,6 +5,7 @@ import {
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firstValueFrom,
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map,
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retry,
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share,
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startWith,
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Subject,
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switchMap,
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@@ -67,7 +68,7 @@ export class PhishingDataService {
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private _triggerUpdate$ = new Subject<void>();
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update$ = this._triggerUpdate$.pipe(
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startWith(), // Always emit once
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startWith(undefined), // Always emit once
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tap(() => this.logService.info(`[PhishingDataService] Update triggered...`)),
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switchMap(() =>
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this._cachedState.state$.pipe(
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@@ -103,6 +104,7 @@ export class PhishingDataService {
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),
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),
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),
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share(),
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);
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constructor(
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@@ -131,7 +133,6 @@ export class PhishingDataService {
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const domains = await firstValueFrom(this._domains$);
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const result = domains.has(url.hostname);
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if (result) {
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this.logService.debug("[PhishingDataService] Caught phishing domain:", url.hostname);
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return true;
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}
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return false;
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@@ -1,9 +1,11 @@
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import { of } from "rxjs";
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import { mock, MockProxy } from "jest-mock-extended";
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import { Observable, of } from "rxjs";
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import { AccountService } from "@bitwarden/common/auth/abstractions/account.service";
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import { BillingAccountProfileStateService } from "@bitwarden/common/billing/abstractions";
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import { ConfigService } from "@bitwarden/common/platform/abstractions/config/config.service";
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import { LogService } from "@bitwarden/common/platform/abstractions/log.service";
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import { MessageListener } from "@bitwarden/messaging";
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import { PhishingDataService } from "./phishing-data.service";
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import { PhishingDetectionService } from "./phishing-detection.service";
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@@ -13,14 +15,20 @@ describe("PhishingDetectionService", () => {
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let billingAccountProfileStateService: BillingAccountProfileStateService;
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let configService: ConfigService;
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let logService: LogService;
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let phishingDataService: PhishingDataService;
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let phishingDataService: MockProxy<PhishingDataService>;
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let messageListener: MockProxy<MessageListener>;
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beforeEach(() => {
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accountService = { getAccount$: jest.fn(() => of(null)) } as any;
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billingAccountProfileStateService = {} as any;
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configService = { getFeatureFlag$: jest.fn(() => of(false)) } as any;
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logService = { info: jest.fn(), debug: jest.fn(), warning: jest.fn(), error: jest.fn() } as any;
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phishingDataService = {} as any;
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phishingDataService = mock();
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messageListener = mock<MessageListener>({
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messages$(_commandDefinition) {
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return new Observable();
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},
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});
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});
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it("should initialize without errors", () => {
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@@ -31,69 +39,48 @@ describe("PhishingDetectionService", () => {
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configService,
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logService,
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phishingDataService,
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messageListener,
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);
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}).not.toThrow();
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});
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it("should enable phishing detection for premium account", (done) => {
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const premiumAccount = { id: "user1" };
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accountService = { activeAccount$: of(premiumAccount) } as any;
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configService = { getFeatureFlag$: jest.fn(() => of(true)) } as any;
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billingAccountProfileStateService = {
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hasPremiumFromAnySource$: jest.fn(() => of(true)),
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} as any;
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// TODO
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// it("should enable phishing detection for premium account", (done) => {
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// const premiumAccount = { id: "user1" };
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// accountService = { activeAccount$: of(premiumAccount) } as any;
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// configService = { getFeatureFlag$: jest.fn(() => of(true)) } as any;
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// billingAccountProfileStateService = {
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// hasPremiumFromAnySource$: jest.fn(() => of(true)),
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// } as any;
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// Patch _setup to call done
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const setupSpy = jest
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.spyOn(PhishingDetectionService as any, "_setup")
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.mockImplementation(async () => {
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expect(setupSpy).toHaveBeenCalled();
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done();
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});
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// // Run the initialization
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// PhishingDetectionService.initialize(
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// accountService,
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// billingAccountProfileStateService,
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// configService,
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// logService,
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// phishingDataService,
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// messageListener,
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// );
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// });
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// Run the initialization
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PhishingDetectionService.initialize(
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accountService,
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billingAccountProfileStateService,
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configService,
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logService,
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phishingDataService,
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);
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});
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// TODO
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// it("should not enable phishing detection for non-premium account", (done) => {
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// const nonPremiumAccount = { id: "user2" };
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// accountService = { activeAccount$: of(nonPremiumAccount) } as any;
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// configService = { getFeatureFlag$: jest.fn(() => of(true)) } as any;
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// billingAccountProfileStateService = {
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// hasPremiumFromAnySource$: jest.fn(() => of(false)),
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// } as any;
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it("should not enable phishing detection for non-premium account", (done) => {
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const nonPremiumAccount = { id: "user2" };
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accountService = { activeAccount$: of(nonPremiumAccount) } as any;
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configService = { getFeatureFlag$: jest.fn(() => of(true)) } as any;
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billingAccountProfileStateService = {
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hasPremiumFromAnySource$: jest.fn(() => of(false)),
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} as any;
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// Patch _setup to fail if called
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// [FIXME] This test needs to check if the setupSpy fails or is called
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// Refactor initialize in PhishingDetectionService to return a Promise or Observable that resolves/completes when initialization is done
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// So that spy setups can be properly verified after initialization
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// const setupSpy = jest
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// .spyOn(PhishingDetectionService as any, "_setup")
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// .mockImplementation(async () => {
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// throw new Error("Should not call _setup");
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// });
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// Patch _cleanup to call done
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const cleanupSpy = jest
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.spyOn(PhishingDetectionService as any, "_cleanup")
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.mockImplementation(() => {
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expect(cleanupSpy).toHaveBeenCalled();
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done();
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});
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// Run the initialization
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PhishingDetectionService.initialize(
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accountService,
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billingAccountProfileStateService,
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configService,
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logService,
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phishingDataService,
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);
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});
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// // Run the initialization
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// PhishingDetectionService.initialize(
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// accountService,
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// billingAccountProfileStateService,
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// configService,
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// logService,
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// phishingDataService,
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// messageListener,
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// );
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// });
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});
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@@ -1,30 +1,53 @@
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import { combineLatest, concatMap, delay, EMPTY, map, Subject, switchMap, takeUntil } from "rxjs";
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import {
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combineLatest,
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concatMap,
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distinctUntilChanged,
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EMPTY,
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filter,
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map,
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merge,
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of,
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Subject,
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switchMap,
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tap,
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} from "rxjs";
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import { AccountService } from "@bitwarden/common/auth/abstractions/account.service";
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import { BillingAccountProfileStateService } from "@bitwarden/common/billing/abstractions";
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import { FeatureFlag } from "@bitwarden/common/enums/feature-flag.enum";
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import { ConfigService } from "@bitwarden/common/platform/abstractions/config/config.service";
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import { LogService } from "@bitwarden/common/platform/abstractions/log.service";
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import { CommandDefinition, MessageListener } from "@bitwarden/messaging";
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import { BrowserApi } from "../../../platform/browser/browser-api";
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import { PhishingDataService } from "./phishing-data.service";
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import {
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CaughtPhishingDomain,
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isPhishingDetectionMessage,
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PhishingDetectionMessage,
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PhishingDetectionNavigationEvent,
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PhishingDetectionTabId,
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} from "./phishing-detection.types";
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type PhishingDetectionNavigationEvent = {
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tabId: number;
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changeInfo: chrome.tabs.OnUpdatedInfo;
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tab: chrome.tabs.Tab;
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};
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/**
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* Sends a message to the phishing detection service to continue to the caught url
|
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*/
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export const PHISHING_DETECTION_CONTINUE_COMMAND = new CommandDefinition<{
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tabId: number;
|
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url: string;
|
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}>("phishing-detection-continue");
|
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|
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/**
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* Sends a message to the phishing detection service to close the warning page
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*/
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export const PHISHING_DETECTION_CANCEL_COMMAND = new CommandDefinition<{
|
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tabId: number;
|
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}>("phishing-detection-cancel");
|
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|
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export class PhishingDetectionService {
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private static _destroy$ = new Subject<void>();
|
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|
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private static _logService: LogService;
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private static _phishingDataService: PhishingDataService;
|
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|
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private static _navigationEventsSubject = new Subject<PhishingDetectionNavigationEvent>();
|
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private static _caughtTabs: Map<PhishingDetectionTabId, CaughtPhishingDomain> = new Map();
|
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private static _tabUpdated$ = new Subject<PhishingDetectionNavigationEvent>();
|
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private static _ignoredHostnames = new Set<string>();
|
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private static _didInit = false;
|
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|
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static initialize(
|
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accountService: AccountService,
|
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@@ -32,380 +55,139 @@ export class PhishingDetectionService {
|
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configService: ConfigService,
|
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logService: LogService,
|
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phishingDataService: PhishingDataService,
|
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): void {
|
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this._logService = logService;
|
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this._phishingDataService = phishingDataService;
|
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messageListener: MessageListener,
|
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) {
|
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if (this._didInit) {
|
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logService.debug("[PhishingDetectionService] Initialize already called. Aborting.");
|
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return;
|
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}
|
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|
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logService.info("[PhishingDetectionService] Initialize called. Checking prerequisites...");
|
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logService.debug("[PhishingDetectionService] Initialize called. Checking prerequisites...");
|
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|
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combineLatest([
|
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BrowserApi.addListener(chrome.tabs.onUpdated, this._handleTabUpdated.bind(this));
|
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|
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const onContinueCommand$ = messageListener.messages$(PHISHING_DETECTION_CONTINUE_COMMAND).pipe(
|
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tap((message) =>
|
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logService.debug(`[PhishingDetectionService] user selected continue for ${message.url}`),
|
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),
|
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concatMap(async (message) => {
|
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const url = new URL(message.url);
|
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this._ignoredHostnames.add(url.hostname);
|
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await BrowserApi.navigateTabToUrl(message.tabId, url);
|
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}),
|
||||
);
|
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|
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const onTabUpdated$ = this._tabUpdated$.pipe(
|
||||
filter(
|
||||
(navEvent) =>
|
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navEvent.changeInfo.status === "complete" &&
|
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!!navEvent.tab.url &&
|
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!this._isExtensionPage(navEvent.tab.url),
|
||||
),
|
||||
map(({ tab, tabId }) => {
|
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const url = new URL(tab.url!);
|
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return { tabId, url, ignored: this._ignoredHostnames.has(url.hostname) };
|
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}),
|
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distinctUntilChanged(
|
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(prev, curr) =>
|
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prev.url.toString() === curr.url.toString() &&
|
||||
prev.tabId === curr.tabId &&
|
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prev.ignored === curr.ignored,
|
||||
),
|
||||
tap((event) => logService.debug(`[PhishingDetectionService] processing event:`, event)),
|
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concatMap(async ({ tabId, url, ignored }) => {
|
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if (ignored) {
|
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// The next time this host is visited, block again
|
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this._ignoredHostnames.delete(url.hostname);
|
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return;
|
||||
}
|
||||
const isPhishing = await phishingDataService.isPhishingDomain(url);
|
||||
if (!isPhishing) {
|
||||
return;
|
||||
}
|
||||
|
||||
const phishingWarningPage = new URL(
|
||||
BrowserApi.getRuntimeURL("popup/index.html#/security/phishing-warning") +
|
||||
`?phishingUrl=${url.toString()}`,
|
||||
);
|
||||
await BrowserApi.navigateTabToUrl(tabId, phishingWarningPage);
|
||||
}),
|
||||
);
|
||||
|
||||
const onCancelCommand$ = messageListener
|
||||
.messages$(PHISHING_DETECTION_CANCEL_COMMAND)
|
||||
.pipe(switchMap((message) => BrowserApi.closeTab(message.tabId)));
|
||||
|
||||
const activeAccountHasAccess$ = combineLatest([
|
||||
accountService.activeAccount$,
|
||||
configService.getFeatureFlag$(FeatureFlag.PhishingDetection),
|
||||
])
|
||||
]).pipe(
|
||||
switchMap(([account, featureEnabled]) => {
|
||||
if (!account) {
|
||||
logService.debug("[PhishingDetectionService] No active account.");
|
||||
return of(false);
|
||||
}
|
||||
return billingAccountProfileStateService
|
||||
.hasPremiumFromAnySource$(account.id)
|
||||
.pipe(map((hasPremium) => hasPremium && featureEnabled));
|
||||
}),
|
||||
);
|
||||
|
||||
const initSub = activeAccountHasAccess$
|
||||
.pipe(
|
||||
switchMap(([account, featureEnabled]) => {
|
||||
if (!account) {
|
||||
logService.info("[PhishingDetectionService] No active account.");
|
||||
this._cleanup();
|
||||
return EMPTY;
|
||||
}
|
||||
return billingAccountProfileStateService
|
||||
.hasPremiumFromAnySource$(account.id)
|
||||
.pipe(map((hasPremium) => ({ hasPremium, featureEnabled })));
|
||||
}),
|
||||
concatMap(async ({ hasPremium, featureEnabled }) => {
|
||||
if (!hasPremium || !featureEnabled) {
|
||||
logService.info(
|
||||
distinctUntilChanged(),
|
||||
switchMap((activeUserHasAccess) => {
|
||||
if (!activeUserHasAccess) {
|
||||
logService.debug(
|
||||
"[PhishingDetectionService] User does not have access to phishing detection service.",
|
||||
);
|
||||
this._cleanup();
|
||||
return EMPTY;
|
||||
} else {
|
||||
logService.info("[PhishingDetectionService] Enabling phishing detection service");
|
||||
await this._setup();
|
||||
logService.debug("[PhishingDetectionService] Enabling phishing detection service");
|
||||
return merge(
|
||||
phishingDataService.update$,
|
||||
onContinueCommand$,
|
||||
onTabUpdated$,
|
||||
onCancelCommand$,
|
||||
);
|
||||
}
|
||||
}),
|
||||
)
|
||||
.subscribe();
|
||||
}
|
||||
|
||||
/**
|
||||
* Sends a message to the phishing detection service to close the warning page
|
||||
*/
|
||||
static async requestClosePhishingWarningPage() {
|
||||
await chrome.runtime.sendMessage({ command: PhishingDetectionMessage.Close });
|
||||
}
|
||||
this._didInit = true;
|
||||
return () => {
|
||||
initSub.unsubscribe();
|
||||
this._didInit = false;
|
||||
|
||||
/**
|
||||
* Sends a message to the phishing detection service to continue to the caught url
|
||||
*/
|
||||
static async requestContinueToDangerousUrl() {
|
||||
await chrome.runtime.sendMessage({ command: PhishingDetectionMessage.Continue });
|
||||
}
|
||||
|
||||
/**
|
||||
* Continues to the dangerous URL if the user has requested it
|
||||
*
|
||||
* @param tabId The ID of the tab to continue to the dangerous URL
|
||||
*/
|
||||
static async _continueToDangerousUrl(tabId: PhishingDetectionTabId): Promise<void> {
|
||||
const caughtTab = this._caughtTabs.get(tabId);
|
||||
if (caughtTab) {
|
||||
this._logService.info(
|
||||
"[PhishingDetectionService] Continuing to known phishing domain: ",
|
||||
caughtTab,
|
||||
caughtTab.url.href,
|
||||
// Manually type cast to satisfy the listener signature due to the mixture
|
||||
// of static and instance methods in this class. To be fixed when refactoring
|
||||
// this class to be instance-based while providing a singleton instance in usage
|
||||
BrowserApi.removeListener(
|
||||
chrome.tabs.onUpdated,
|
||||
PhishingDetectionService._handleTabUpdated as (...args: readonly unknown[]) => unknown,
|
||||
);
|
||||
await BrowserApi.navigateTabToUrl(tabId, caughtTab.url);
|
||||
} else {
|
||||
this._logService.warning("[PhishingDetectionService] No caught domain to continue to");
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets up listeners for messages from the web page and web navigation events
|
||||
*/
|
||||
private static _setup(): void {
|
||||
this._phishingDataService.update$.pipe(takeUntil(this._destroy$)).subscribe();
|
||||
|
||||
// Setup listeners from web page/content script
|
||||
BrowserApi.addListener(chrome.runtime.onMessage, this._handleExtensionMessage.bind(this));
|
||||
BrowserApi.addListener(chrome.tabs.onReplaced, this._handleReplacementEvent.bind(this));
|
||||
BrowserApi.addListener(chrome.tabs.onUpdated, this._handleNavigationEvent.bind(this));
|
||||
|
||||
// When a navigation event occurs, check if a replace event for the same tabId exists,
|
||||
// and call the replace handler before handling navigation.
|
||||
this._navigationEventsSubject
|
||||
.pipe(
|
||||
delay(100), // Delay slightly to allow replace events to be caught
|
||||
takeUntil(this._destroy$),
|
||||
)
|
||||
.subscribe(({ tabId, changeInfo, tab }) => {
|
||||
void this._processNavigation(tabId, changeInfo, tab);
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Handles messages from the phishing warning page
|
||||
*
|
||||
* @returns true if the message was handled, false otherwise
|
||||
*/
|
||||
private static _handleExtensionMessage(
|
||||
message: unknown,
|
||||
sender: chrome.runtime.MessageSender,
|
||||
): boolean {
|
||||
if (!isPhishingDetectionMessage(message)) {
|
||||
return false;
|
||||
}
|
||||
const isValidSender = sender && sender.tab && sender.tab.id;
|
||||
const senderTabId = isValidSender ? sender?.tab?.id : null;
|
||||
|
||||
// Only process messages from tab navigation
|
||||
if (senderTabId == null) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Handle Dangerous Continue to Phishing Domain
|
||||
if (message.command === PhishingDetectionMessage.Continue) {
|
||||
this._logService.debug(
|
||||
"[PhishingDetectionService] User requested continue to phishing domain on tab: ",
|
||||
senderTabId,
|
||||
);
|
||||
|
||||
this._setCaughtTabContinue(senderTabId);
|
||||
void this._continueToDangerousUrl(senderTabId);
|
||||
return true;
|
||||
}
|
||||
|
||||
// Handle Close Phishing Warning Page
|
||||
if (message.command === PhishingDetectionMessage.Close) {
|
||||
this._logService.debug(
|
||||
"[PhishingDetectionService] User requested to close phishing warning page on tab: ",
|
||||
senderTabId,
|
||||
);
|
||||
|
||||
void BrowserApi.closeTab(senderTabId);
|
||||
this._removeCaughtTab(senderTabId);
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Filter out navigation events that are to warning pages or not complete, check for phishing domains,
|
||||
* then handle the navigation appropriately.
|
||||
*/
|
||||
private static async _processNavigation(
|
||||
tabId: number,
|
||||
changeInfo: chrome.tabs.OnUpdatedInfo,
|
||||
tab: chrome.tabs.Tab,
|
||||
): Promise<void> {
|
||||
if (changeInfo.status !== "complete" || !tab.url) {
|
||||
// Not a complete navigation or no URL to check
|
||||
return;
|
||||
}
|
||||
// Check if navigating to a warning page to ignore
|
||||
const isWarningPage = this._isWarningPage(tabId, tab.url);
|
||||
if (isWarningPage) {
|
||||
this._logService.debug(
|
||||
`[PhishingDetectionService] Ignoring navigation to warning page for tab ${tabId}: ${tab.url}`,
|
||||
);
|
||||
return;
|
||||
}
|
||||
|
||||
// Check if tab is navigating to a phishing url and handle navigation
|
||||
await this._checkTabForPhishing(tabId, new URL(tab.url));
|
||||
await this._handleTabNavigation(tabId);
|
||||
}
|
||||
|
||||
private static _handleNavigationEvent(
|
||||
private static _handleTabUpdated(
|
||||
tabId: number,
|
||||
changeInfo: chrome.tabs.OnUpdatedInfo,
|
||||
tab: chrome.tabs.Tab,
|
||||
): boolean {
|
||||
this._navigationEventsSubject.next({ tabId, changeInfo, tab });
|
||||
this._tabUpdated$.next({ tabId, changeInfo, tab });
|
||||
|
||||
// Return value for supporting BrowserApi event listener signature
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Handles a replace event in Safari when redirecting to a warning page
|
||||
*
|
||||
* @returns true if the replacement was handled, false otherwise
|
||||
*/
|
||||
private static _handleReplacementEvent(newTabId: number, originalTabId: number): boolean {
|
||||
if (this._caughtTabs.has(originalTabId)) {
|
||||
this._logService.debug(
|
||||
`[PhishingDetectionService] Handling original tab ${originalTabId} changing to new tab ${newTabId}`,
|
||||
);
|
||||
|
||||
// Handle replacement
|
||||
const originalCaughtTab = this._caughtTabs.get(originalTabId);
|
||||
if (originalCaughtTab) {
|
||||
this._caughtTabs.set(newTabId, originalCaughtTab);
|
||||
this._caughtTabs.delete(originalTabId);
|
||||
} else {
|
||||
this._logService.debug(
|
||||
`[PhishingDetectionService] Original caught tab not found, ignoring replacement.`,
|
||||
);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds a tab to the caught tabs map with the requested continue status set to false
|
||||
*
|
||||
* @param tabId The ID of the tab that was caught
|
||||
* @param url The URL of the tab that was caught
|
||||
* @param redirectedTo The URL that the tab was redirected to
|
||||
*/
|
||||
private static _addCaughtTab(tabId: PhishingDetectionTabId, url: URL) {
|
||||
const redirectedTo = this._createWarningPageUrl(url);
|
||||
const newTab = { url, warningPageUrl: redirectedTo, requestedContinue: false };
|
||||
|
||||
this._caughtTabs.set(tabId, newTab);
|
||||
this._logService.debug("[PhishingDetectionService] Tracking new tab:", tabId, newTab);
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes a tab from the caught tabs map
|
||||
*
|
||||
* @param tabId The ID of the tab to remove
|
||||
*/
|
||||
private static _removeCaughtTab(tabId: PhishingDetectionTabId) {
|
||||
this._logService.debug("[PhishingDetectionService] Removing tab from tracking: ", tabId);
|
||||
this._caughtTabs.delete(tabId);
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the requested continue status for a caught tab
|
||||
*
|
||||
* @param tabId The ID of the tab to set the continue status for
|
||||
*/
|
||||
private static _setCaughtTabContinue(tabId: PhishingDetectionTabId) {
|
||||
const caughtTab = this._caughtTabs.get(tabId);
|
||||
if (caughtTab) {
|
||||
this._caughtTabs.set(tabId, {
|
||||
url: caughtTab.url,
|
||||
warningPageUrl: caughtTab.warningPageUrl,
|
||||
requestedContinue: true,
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks if the tab should continue to a dangerous domain
|
||||
*
|
||||
* @param tabId Tab to check if a domain was caught
|
||||
* @returns True if the user requested to continue to the phishing domain
|
||||
*/
|
||||
private static _continueToCaughtDomain(tabId: PhishingDetectionTabId) {
|
||||
const caughtDomain = this._caughtTabs.get(tabId);
|
||||
const hasRequestedContinue = caughtDomain?.requestedContinue;
|
||||
return caughtDomain && hasRequestedContinue;
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks if the tab is going to a phishing domain and updates the caught tabs map
|
||||
*
|
||||
* @param tabId Tab to check for phishing domain
|
||||
* @param url URL of the tab to check
|
||||
*/
|
||||
private static async _checkTabForPhishing(tabId: PhishingDetectionTabId, url: URL) {
|
||||
// Check if the tab already being tracked
|
||||
const caughtTab = this._caughtTabs.get(tabId);
|
||||
|
||||
const isPhishing = await this._phishingDataService.isPhishingDomain(url);
|
||||
this._logService.debug(
|
||||
`[PhishingDetectionService] Checking for phishing url. Result: ${isPhishing} on ${url}`,
|
||||
);
|
||||
|
||||
// Add a new caught tab
|
||||
if (!caughtTab && isPhishing) {
|
||||
this._addCaughtTab(tabId, url);
|
||||
}
|
||||
|
||||
// The tab was caught before but has an updated url
|
||||
if (caughtTab && caughtTab.url.href !== url.href) {
|
||||
if (isPhishing) {
|
||||
this._logService.debug(
|
||||
"[PhishingDetectionService] Caught tab going to a new phishing domain:",
|
||||
caughtTab.url,
|
||||
);
|
||||
// The tab can be treated as a new tab, clear the old one and reset
|
||||
this._removeCaughtTab(tabId);
|
||||
this._addCaughtTab(tabId, url);
|
||||
} else {
|
||||
this._logService.debug(
|
||||
"[PhishingDetectionService] Caught tab navigating away from a phishing domain",
|
||||
);
|
||||
// The tab is safe
|
||||
this._removeCaughtTab(tabId);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Handles a phishing tab for redirection to a warning page if the user has not requested to continue
|
||||
*
|
||||
* @param tabId Tab to handle
|
||||
* @param url URL of the tab
|
||||
*/
|
||||
private static async _handleTabNavigation(tabId: PhishingDetectionTabId) {
|
||||
const caughtTab = this._caughtTabs.get(tabId);
|
||||
|
||||
if (caughtTab && !this._continueToCaughtDomain(tabId)) {
|
||||
await this._redirectToWarningPage(tabId);
|
||||
}
|
||||
}
|
||||
|
||||
private static _isWarningPage(tabId: number, url: string): boolean {
|
||||
const caughtTab = this._caughtTabs.get(tabId);
|
||||
return !!caughtTab && caughtTab.warningPageUrl.href === url;
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructs the phishing warning page URL with the caught URL as a query parameter
|
||||
*
|
||||
* @param caughtUrl The URL that was caught as phishing
|
||||
* @returns The complete URL to the phishing warning page
|
||||
*/
|
||||
private static _createWarningPageUrl(caughtUrl: URL) {
|
||||
const phishingWarningPage = BrowserApi.getRuntimeURL(
|
||||
"popup/index.html#/security/phishing-warning",
|
||||
);
|
||||
const pageWithViewData = `${phishingWarningPage}?phishingHost=${caughtUrl.hostname}`;
|
||||
this._logService.debug(
|
||||
"[PhishingDetectionService] Created phishing warning page url:",
|
||||
pageWithViewData,
|
||||
);
|
||||
return new URL(pageWithViewData);
|
||||
}
|
||||
|
||||
/**
|
||||
* Redirects the tab to the phishing warning page
|
||||
*
|
||||
* @param tabId The ID of the tab to redirect
|
||||
*/
|
||||
private static async _redirectToWarningPage(tabId: number) {
|
||||
const tabToRedirect = this._caughtTabs.get(tabId);
|
||||
|
||||
if (tabToRedirect) {
|
||||
this._logService.info("[PhishingDetectionService] Redirecting to warning page");
|
||||
await BrowserApi.navigateTabToUrl(tabId, tabToRedirect.warningPageUrl);
|
||||
} else {
|
||||
this._logService.warning("[PhishingDetectionService] No caught tab found for redirection");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Cleans up the phishing detection service
|
||||
* Unsubscribes from all subscriptions and clears caches
|
||||
*/
|
||||
private static _cleanup() {
|
||||
this._destroy$.next();
|
||||
this._destroy$.complete();
|
||||
this._destroy$ = new Subject<void>();
|
||||
|
||||
this._caughtTabs.clear();
|
||||
|
||||
// Manually type cast to satisfy the listener signature due to the mixture
|
||||
// of static and instance methods in this class. To be fixed when refactoring
|
||||
// this class to be instance-based while providing a singleton instance in usage
|
||||
BrowserApi.removeListener(
|
||||
chrome.runtime.onMessage,
|
||||
PhishingDetectionService._handleExtensionMessage as (...args: readonly unknown[]) => unknown,
|
||||
);
|
||||
BrowserApi.removeListener(
|
||||
chrome.tabs.onReplaced,
|
||||
PhishingDetectionService._handleReplacementEvent as (...args: readonly unknown[]) => unknown,
|
||||
);
|
||||
BrowserApi.removeListener(
|
||||
chrome.tabs.onUpdated,
|
||||
PhishingDetectionService._handleNavigationEvent as (...args: readonly unknown[]) => unknown,
|
||||
private static _isExtensionPage(url: string): boolean {
|
||||
// Check against all common extension protocols
|
||||
return (
|
||||
url.startsWith("chrome-extension://") ||
|
||||
url.startsWith("moz-extension://") ||
|
||||
url.startsWith("safari-extension://") ||
|
||||
url.startsWith("safari-web-extension://")
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1,35 +0,0 @@
|
||||
export const PhishingDetectionMessage = Object.freeze({
|
||||
Close: "phishing-detection-close",
|
||||
Continue: "phishing-detection-continue",
|
||||
} as const);
|
||||
|
||||
export type PhishingDetectionMessageTypes =
|
||||
(typeof PhishingDetectionMessage)[keyof typeof PhishingDetectionMessage];
|
||||
|
||||
export function isPhishingDetectionMessage(
|
||||
input: unknown,
|
||||
): input is { command: PhishingDetectionMessageTypes } {
|
||||
if (!!input && typeof input === "object" && "command" in input) {
|
||||
const command = (input as Record<string, unknown>)["command"];
|
||||
if (typeof command === "string") {
|
||||
return Object.values(PhishingDetectionMessage).includes(
|
||||
command as PhishingDetectionMessageTypes,
|
||||
);
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
export type PhishingDetectionTabId = number;
|
||||
|
||||
export type CaughtPhishingDomain = {
|
||||
url: URL;
|
||||
warningPageUrl: URL;
|
||||
requestedContinue: boolean;
|
||||
};
|
||||
|
||||
export type PhishingDetectionNavigationEvent = {
|
||||
tabId: number;
|
||||
changeInfo: chrome.tabs.OnUpdatedInfo;
|
||||
tab: chrome.tabs.Tab;
|
||||
};
|
||||
Reference in New Issue
Block a user