angular-cn/aio/tests/deployment/shared/helpers.ts

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import { resolve as resolvePath } from 'canonical-path';
import { load as loadJson } from 'cjson';
import { readFileSync } from 'fs';
import { get as httpGet } from 'http';
import { get as httpsGet } from 'https';
import { processNavigationUrls } from '../../../../packages/service-worker/config/src/generator';
import { FirebaseRedirector, FirebaseRedirectConfig } from '../../../tools/firebase-test-utils/FirebaseRedirector';
const AIO_DIR = resolvePath(__dirname, '../../..');
export function getRedirector() {
return new FirebaseRedirector(loadRedirects());
}
export function getSwNavigationUrlChecker() {
const config = loadJson(`${AIO_DIR}/ngsw-config.json`);
const navigationUrlSpecs = processNavigationUrls('', config.navigationUrls);
const includePatterns = navigationUrlSpecs
.filter(spec => spec.positive)
.map(spec => new RegExp(spec.regex));
const excludePatterns = navigationUrlSpecs
.filter(spec => !spec.positive)
.map(spec => new RegExp(spec.regex));
return (url: string) =>
includePatterns.some(regex => regex.test(url))
&& !excludePatterns.some(regex => regex.test(url));
}
export function loadRedirects(): FirebaseRedirectConfig[] {
const pathToFirebaseJSON = `${AIO_DIR}/firebase.json`;
const contents = loadJson(pathToFirebaseJSON);
return contents.hosting.redirects;
}
export function loadLegacyUrls() {
const pathToLegacyUrls = `${__dirname}/URLS_TO_REDIRECT.txt`;
const urls = readFileSync(pathToLegacyUrls, 'utf8').split('\n').map(line => line.split('\t'));
return urls;
}
export function loadLocalSitemapUrls() {
const pathToSiteMap = `${AIO_DIR}/src/generated/sitemap.xml`;
const xml = readFileSync(pathToSiteMap, 'utf8');
return extractSitemapUrls(xml);
}
export async function loadRemoteSitemapUrls(host: string) {
host = host.replace(/\/$/, '');
const urlToSiteMap = `${host}/generated/sitemap.xml`;
const get = /^https:/.test(host) ? httpsGet : httpGet;
const xml = await new Promise<string>((resolve, reject) => {
let responseText = '';
get(urlToSiteMap, res => res
.on('data', chunk => responseText += chunk)
.on('end', () => resolve(responseText))
.on('error', reject));
});
return extractSitemapUrls(xml);
}
// Private functions
function extractSitemapUrls(xml: string) {
// Currently, all sitemaps use `angular.io` as host in URLs (which is fine since we only use the
// sitemap in `angular.io`). See also `aio/src/extra-files/*/robots.txt`.
const host = 'https://angular.io';
const urls: string[] = [];
xml.replace(/<loc>([^<]+)<\/loc>/g, (_, loc) => urls.push(loc.replace(host, '')) as any);
// Ensure none of the URLs contains the scheme/host.
// (That would mean that the URL contains a different than expected host, which can in turn lead
// to tests passing while they shouldn't).
urls.forEach(url => {
if (url.includes('://')) {
throw new Error(`Sitemap URL (${url}) contains unexpected host. Expected: ${host}`);
}
});
return urls;
}