bitwarden-browser/src/background/runtime.background.ts

import { CipherType } from '../enums/cipherType.enum';

import BrowserApi from '../browser/browserApi';

import MainBackground from './main.background';

import AutofillService from '../services/autofill.service';
import CipherService from '../services/cipher.service';
import UtilsService from '../services/utils.service';

export default class RuntimeBackground {
    private runtime: any;
    private autofillTimeout: number;
    private pageDetailsToAutoFill: any[] = [];

    constructor(private main: MainBackground, private autofillService: AutofillService,
        private cipherService: CipherService) {
        this.runtime = chrome.runtime;
    }

    async init() {
        if (!this.runtime) {
            return;
        }

        this.runtime.onMessage.addListener(async (msg: any, sender: any, sendResponse: any) => {
            if (msg.command === 'loggedIn' || msg.command === 'unlocked' || msg.command === 'locked') {
                await this.main.setIcon();
                await this.main.refreshBadgeAndMenu();
            } else if (msg.command === 'logout') {
                await this.main.logout(msg.expired);
            } else if (msg.command === 'syncCompleted' && msg.successfully) {
                setTimeout(async () => await this.main.refreshBadgeAndMenu(), 2000);
            } else if (msg.command === 'bgOpenOverlayPopup') {
                await this.currentTabSendMessage('openOverlayPopup', msg.data);
            } else if (msg.command === 'bgCloseOverlayPopup') {
                await this.currentTabSendMessage('closeOverlayPopup');
            } else if (msg.command === 'bgOpenNotificationBar') {
                await BrowserApi.tabSendMessage(sender.tab, 'openNotificationBar', msg.data);
            } else if (msg.command === 'bgCloseNotificationBar') {
                await BrowserApi.tabSendMessage(sender.tab, 'closeNotificationBar');
            } else if (msg.command === 'bgAdjustNotificationBar') {
                await BrowserApi.tabSendMessage(sender.tab, 'adjustNotificationBar', msg.data);
            } else if (msg.command === 'bgCollectPageDetails') {
                this.main.collectPageDetailsForContentScript(sender.tab, msg.sender, sender.frameId);
            } else if (msg.command === 'bgAddLogin') {
                await this.addLogin(msg.login, sender.tab);
            } else if (msg.command === 'bgAddClose') {
                this.removeAddLogin(sender.tab);
            } else if (msg.command === 'bgAddSave') {
                await this.saveAddLogin(sender.tab);
            } else if (msg.command === 'bgNeverSave') {
                await this.saveNever(sender.tab);
            } else if (msg.command === 'collectPageDetailsResponse') {
                if (msg.sender === 'notificationBar') {
                    const forms = this.autofillService.getFormsWithPasswordFields(msg.details);
                    await BrowserApi.tabSendMessage(msg.tab, 'notificationBarPageDetails', {
                        details: msg.details,
                        forms: forms,
                    });
                } else if (msg.sender === 'autofiller' || msg.sender === 'autofill_cmd') {
                    await this.autofillService.doAutoFillForLastUsedLogin([{
                        frameId: sender.frameId,
                        tab: msg.tab,
                        details: msg.details,
                    }], msg.sender === 'autofill_cmd');
                } else if (msg.sender === 'contextMenu') {
                    clearTimeout(this.autofillTimeout);
                    this.pageDetailsToAutoFill.push({ frameId: sender.frameId, tab: msg.tab, details: msg.details });
                    this.autofillTimeout = setTimeout(async () => await this.autofillPage(), 300);
                }
            } else if (msg.command === 'bgUpdateContextMenu') {
                await this.main.refreshBadgeAndMenu();
            }
        });

        if (!this.runtime.onInstalled) {
            return;
        }

        this.runtime.onInstalled.addListener((details: any) => {
            (window as any).ga('send', {
                hitType: 'event',
                eventAction: 'onInstalled ' + details.reason,
            });

            if (details.reason === 'install') {
                chrome.tabs.create({ url: 'https://bitwarden.com/browser-start/' });
            }
        });
    }

    private async autofillPage() {
        await this.autofillService.doAutoFill({
            cipher: this.main.loginToAutoFill,
            pageDetails: this.pageDetailsToAutoFill,
            fromBackground: true,
        });

        // reset
        this.main.loginToAutoFill = null;
        this.pageDetailsToAutoFill = [];
    }

    private async saveAddLogin(tab: any) {
        for (let i = this.main.loginsToAdd.length - 1; i >= 0; i--) {
            if (this.main.loginsToAdd[i].tabId !== tab.id) {
                continue;
            }

            const loginInfo = this.main.loginsToAdd[i];
            const tabDomain = UtilsService.getDomain(tab.url);
            if (tabDomain != null && tabDomain !== loginInfo.domain) {
                continue;
            }

            this.main.loginsToAdd.splice(i, 1);

            const cipher = await this.cipherService.encrypt({
                id: null,
                folderId: null,
                favorite: false,
                name: loginInfo.name,
                notes: null,
                type: CipherType.Login,
                login: {
                    uri: loginInfo.uri,
                    username: loginInfo.username,
                    password: loginInfo.password,
                },
            });

            await this.cipherService.saveWithServer(cipher);
            (window as any).ga('send', {
                hitType: 'event',
                eventAction: 'Added Login from Notification Bar',
            });

            BrowserApi.tabSendMessage(tab, 'closeNotificationBar');
        }
    }

    private async saveNever(tab: any) {
        for (let i = this.main.loginsToAdd.length - 1; i >= 0; i--) {
            if (this.main.loginsToAdd[i].tabId !== tab.id) {
                continue;
            }

            const loginInfo = this.main.loginsToAdd[i];
            const tabDomain = UtilsService.getDomain(tab.url);
            if (tabDomain != null && tabDomain !== loginInfo.domain) {
                continue;
            }

            this.main.loginsToAdd.splice(i, 1);
            const hostname = UtilsService.getHostname(tab.url);
            await this.cipherService.saveNeverDomain(hostname);
            BrowserApi.tabSendMessage(tab, 'closeNotificationBar');
        }
    }

    private async addLogin(loginInfo: any, tab: any) {
        const loginDomain = UtilsService.getDomain(loginInfo.url);
        if (loginDomain == null) {
            return;
        }

        const ciphers = await this.cipherService.getAllDecryptedForDomain(loginDomain);

        let match = false;
        for (let i = 0; i < ciphers.length; i++) {
            if (ciphers[i].login.username === loginInfo.username) {
                match = true;
                break;
            }
        }

        if (!match) {
            // remove any old logins for this tab
            this.removeAddLogin(tab);

            this.main.loginsToAdd.push({
                username: loginInfo.username,
                password: loginInfo.password,
                name: loginDomain,
                domain: loginDomain,
                uri: loginInfo.url,
                tabId: tab.id,
                expires: new Date((new Date()).getTime() + 30 * 60000), // 30 minutes
            });

            await this.main.checkLoginsToAdd(tab);
        }
    }

    private removeAddLogin(tab: any) {
        for (let i = this.main.loginsToAdd.length - 1; i >= 0; i--) {
            if (this.main.loginsToAdd[i].tabId === tab.id) {
                this.main.loginsToAdd.splice(i, 1);
            }
        }
    }

    private async currentTabSendMessage(command: string, data: any = null) {
        const tab = await BrowserApi.getTabFromCurrentWindow();
        if (tab == null) {
            return;
        }

        await BrowserApi.tabSendMessage(tab, command, data);
    }
}