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108 lines
5.1 KiB
108 lines
5.1 KiB
import {GristLoadConfig} from 'app/common/gristUrls';
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import {getTagManagerSnippet} from 'app/common/tagManager';
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import {isAnonymousUser} from 'app/server/lib/Authorizer';
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import {RequestWithOrg} from 'app/server/lib/extractOrg';
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import {GristServer} from 'app/server/lib/GristServer';
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import {getSupportedEngineChoices} from 'app/server/lib/serverUtils';
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import * as express from 'express';
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import * as fse from 'fs-extra';
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import * as path from 'path';
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export interface ISendAppPageOptions {
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path: string; // Ignored if .content is present (set to "" for clarity).
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content?: string;
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status: number;
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config: Partial<GristLoadConfig>;
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tag?: string; // If present, override version tag.
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// If present, enable Google Tag Manager on this page (if GOOGLE_TAG_MANAGER_ID env var is set).
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// Used on the welcome page to track sign-ups. We don't intend to use it for in-app analytics.
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// Set to true to insert tracker unconditionally; false to omit it; "anon" to insert
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// it only when the user is not logged in.
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googleTagManager?: true | false | 'anon';
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}
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export function makeGristConfig(homeUrl: string|null, extra: Partial<GristLoadConfig>,
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baseDomain?: string, req?: express.Request
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): GristLoadConfig {
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// .invalid is a TLD the IETF promises will never exist.
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const pluginUrl = process.env.APP_UNTRUSTED_URL || 'http://plugins.invalid';
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const pathOnly = (process.env.GRIST_ORG_IN_PATH === "true") ||
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(homeUrl && new URL(homeUrl).hostname === 'localhost') || false;
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const mreq = req as RequestWithOrg|undefined;
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return {
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homeUrl,
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org: process.env.GRIST_SINGLE_ORG || (mreq && mreq.org),
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baseDomain,
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singleOrg: process.env.GRIST_SINGLE_ORG,
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pathOnly,
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supportAnon: shouldSupportAnon(),
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supportEngines: getSupportedEngineChoices(),
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pluginUrl,
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stripeAPIKey: process.env.STRIPE_PUBLIC_API_KEY,
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googleClientId: process.env.GOOGLE_CLIENT_ID,
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googleDriveScope: process.env.GOOGLE_DRIVE_SCOPE,
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helpScoutBeaconId: process.env.HELP_SCOUT_BEACON_ID_V2,
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maxUploadSizeImport: (Number(process.env.GRIST_MAX_UPLOAD_IMPORT_MB) * 1024 * 1024) || undefined,
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maxUploadSizeAttachment: (Number(process.env.GRIST_MAX_UPLOAD_ATTACHMENT_MB) * 1024 * 1024) || undefined,
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timestampMs: Date.now(),
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enableWidgetRepository: Boolean(process.env.GRIST_WIDGET_LIST_URL),
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survey: Boolean(process.env.DOC_ID_NEW_USER_INFO),
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tagManagerId: process.env.GOOGLE_TAG_MANAGER_ID,
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...extra,
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};
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}
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/**
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* Creates a method that will send html page that will immediately post a message to a parent window.
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* Primary used for Google Auth Grist's endpoint, but can be used in future in any other server side
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* authentication flow.
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*/
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export function makeMessagePage(staticDir: string) {
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return async (req: express.Request, resp: express.Response, message: any) => {
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const fileContent = await fse.readFile(path.join(staticDir, "message.html"), 'utf8');
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const content = fileContent
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.replace("<!-- INSERT MESSAGE -->", `<script>window.message = ${JSON.stringify(message)};</script>`);
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resp.status(200).type('html').send(content);
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};
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}
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/**
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* Send a simple template page, read from file at pagePath (relative to static/), with certain
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* placeholders replaced.
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*/
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export function makeSendAppPage(opts: {
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server: GristServer|null, staticDir: string, tag: string, testLogin?: boolean,
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baseDomain?: string
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}) {
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const {server, staticDir, tag, testLogin} = opts;
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return async (req: express.Request, resp: express.Response, options: ISendAppPageOptions) => {
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// .invalid is a TLD the IETF promises will never exist.
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const config = makeGristConfig(server ? server.getHomeUrl(req) : null, options.config,
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opts.baseDomain, req);
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// We could cache file contents in memory, but the filesystem does caching too, and compared
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// to that, the performance gain is unlikely to be meaningful. So keep it simple here.
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const fileContent = options.content || await fse.readFile(path.join(staticDir, options.path), 'utf8');
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const needTagManager = (options.googleTagManager === 'anon' && isAnonymousUser(req)) ||
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options.googleTagManager === true;
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const tagManagerSnippet = needTagManager ? getTagManagerSnippet(process.env.GOOGLE_TAG_MANAGER_ID) : '';
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const staticOrigin = process.env.APP_STATIC_URL || "";
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const staticBaseUrl = `${staticOrigin}/v/${options.tag || tag}/`;
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const customHeadHtmlSnippet = server?.create.getExtraHeadHtml?.() ?? "";
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const warning = testLogin ? "<div class=\"dev_warning\">Authentication is not enforced</div>" : "";
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const content = fileContent
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.replace("<!-- INSERT WARNING -->", warning)
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.replace("<!-- INSERT BASE -->", `<base href="${staticBaseUrl}">` + tagManagerSnippet)
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.replace("<!-- INSERT CUSTOM -->", customHeadHtmlSnippet)
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.replace("<!-- INSERT CONFIG -->", `<script>window.gristConfig = ${JSON.stringify(config)};</script>`);
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resp.status(options.status).type('html').send(content);
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};
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}
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function shouldSupportAnon() {
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// Enable UI for anonymous access if a flag is explicitly set in the environment
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return process.env.GRIST_SUPPORT_ANON === "true";
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}
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