lockbitchat
98d42ac2fb
The site now speaks German, French, Spanish, Ukrainian, Russian, Chinese, Korean and Hindi alongside English — 623 strings per language, 5,607 translations, covering the landing page, the key exchange, the chat, group calls and every error along the way. Each locale is a real page at a real URL (/de/, /fr/, …), generated at build time from locales/*.json. That is the whole point: the app is client-rendered, so a language that only swaps strings at runtime has no address for a crawler to index and no link anyone can share. Each page carries its own canonical, a reciprocal hreflang cluster and translated schema.org. The URL decides the language, always. A stored preference only applies where the address does not say, and nothing ever redirects on Accept-Language — that is how sites become invisible to search engines outside one country. robots.txt and sitemap.xml did not exist before; both are generated now. Bugs found on the way, each with a test that would have caught it: - partner logos used page-relative paths and 404'd from any /xx/ page - post-build stamped ?v= only into the root shell, leaving locales behind - "Back online" appeared on every page load, not just after being offline - update timestamps were hard-coded to US format for every reader - t() threw on a partial window, taking whole components down with it
256 lines
13 KiB
JavaScript
256 lines
13 KiB
JavaScript
// The localized pages are generated, so the thing worth asserting is not their
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// content but the invariants a generator can silently break: that the committed
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// HTML is what the template actually produces, that every locale carries its own
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// canonical rather than pointing at the default one, and that the hreflang cluster
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// is complete. A canonical that points elsewhere tells Google not to index the page
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// at all, which is the exact opposite of why the locale exists.
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import assert from 'node:assert/strict';
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import { execFileSync } from 'node:child_process';
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import { readFileSync, writeFileSync, existsSync, mkdirSync, mkdtempSync, rmSync } from 'node:fs';
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import { tmpdir } from 'node:os';
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import { fileURLToPath } from 'node:url';
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import path from 'node:path';
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const ROOT = fileURLToPath(new URL('..', import.meta.url));
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const read = (rel) => readFileSync(path.join(ROOT, rel), 'utf8');
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const site = JSON.parse(read('locales/site.json'));
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const localeFile = (code) => JSON.parse(read(`locales/${code}.json`));
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const pageFor = (code) => (code === site.defaultLocale ? 'index.html' : `${code}/index.html`);
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const urlFor = (code) => (code === site.defaultLocale ? `${site.baseUrl}/` : `${site.baseUrl}/${code}/`);
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// Every locale in the registry must have a file and a generated page.
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{
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assert.ok(site.locales.includes(site.defaultLocale), 'defaultLocale must be listed in locales');
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for (const code of site.locales) {
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assert.ok(existsSync(path.join(ROOT, `locales/${code}.json`)), `locales/${code}.json is missing`);
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assert.ok(existsSync(path.join(ROOT, pageFor(code))), `${pageFor(code)} was never generated`);
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}
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}
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// The committed pages must be exactly what the generator produces. If someone edits
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// index.html by hand the change is lost on the next build, so catch it here instead.
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{
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const before = Object.fromEntries(site.locales.map((code) => [code, read(pageFor(code))]));
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execFileSync('node', [path.join(ROOT, 'scripts/build-i18n.js')], { stdio: 'pipe' });
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for (const code of site.locales) {
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assert.equal(
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read(pageFor(code)), before[code],
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`${pageFor(code)} is not what scripts/build-i18n.js generates — edit templates/ or locales/, then run \`npm run build:i18n\``
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);
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}
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}
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// Per-locale SEO identity.
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for (const code of site.locales) {
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const html = read(pageFor(code));
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const locale = localeFile(code);
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assert.match(html, new RegExp(`<html lang="${locale.htmlLang}">`), `${code}: wrong <html lang>`);
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assert.ok(
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html.includes(`<link rel="canonical" href="${urlFor(code)}">`),
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`${code}: canonical must point at its own URL, not another locale's`
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);
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assert.ok(html.includes(`<title>${locale.meta.title}</title>`), `${code}: title not from the locale file`);
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assert.ok(html.includes(`content="${locale.ogLocale}"`), `${code}: og:locale missing`);
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// The structured data must describe this page in this language.
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const ld = JSON.parse(html.match(/application\/ld\+json">([\s\S]*?)<\/script>/)[1]);
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const app = ld['@graph'].find((node) => node['@type'] === 'WebApplication');
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assert.equal(app.inLanguage, locale.htmlLang, `${code}: JSON-LD inLanguage disagrees with the page`);
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assert.equal(app.url, urlFor(code), `${code}: JSON-LD url disagrees with the canonical`);
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// A hreflang cluster only counts if every page lists every page, itself included.
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if (site.locales.length > 1) {
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for (const other of site.locales) {
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const lang = localeFile(other).htmlLang;
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assert.ok(
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html.includes(`hreflang="${lang}" href="${urlFor(other)}"`),
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`${code}: hreflang cluster is missing ${other}`
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);
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}
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assert.ok(html.includes('hreflang="x-default"'), `${code}: x-default is missing`);
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}
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}
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// robots.txt must not block what the crawler needs to render the page. The app is
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// client-rendered: block /src/ or /dist/ and Google sees an empty <div id="root">.
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{
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const robots = read('robots.txt');
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assert.ok(robots.includes(`Sitemap: ${site.baseUrl}/sitemap.xml`), 'robots.txt must advertise the sitemap');
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for (const critical of ['/src/', '/dist/', '/libs/', '/assets/', '/config/']) {
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assert.equal(
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robots.includes(`Disallow: ${critical}`), false,
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`robots.txt disallows ${critical}, which the page needs in order to render for a crawler`
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);
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}
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}
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// The sitemap must list every locale exactly once.
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{
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const sitemap = read('sitemap.xml');
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for (const code of site.locales) {
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const loc = `<loc>${urlFor(code)}</loc>`;
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assert.equal(sitemap.split(loc).length - 1, 1, `sitemap.xml must list ${urlFor(code)} exactly once`);
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}
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assert.equal(
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(sitemap.match(/<url>/g) || []).length, site.locales.length,
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'sitemap.xml has entries for URLs that are not locales'
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);
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}
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// Every shell must carry the same build stamp. scripts/build-i18n.js fills in ?v= from
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// meta.json, but meta.json is regenerated afterwards by post-build.js — which for a
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// while re-stamped only the root page, leaving the localized ones pointing at the
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// previous build.
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{
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const stamps = new Map();
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for (const code of site.locales) {
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const found = [...new Set(read(pageFor(code)).match(/\?v=[0-9A-Z_]+/g) || [])];
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assert.equal(found.length, 1, `${pageFor(code)} carries more than one build stamp: ${found.join(', ')}`);
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stamps.set(code, found[0]);
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}
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const distinct = new Set(stamps.values());
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assert.equal(
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distinct.size, 1,
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`the app shells disagree on the build stamp: ${[...stamps].map(([c, v]) => `${c}=${v}`).join(', ')}`
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);
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const meta = JSON.parse(read('meta.json'));
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assert.equal([...distinct][0], `?v=${meta.version}`, 'the shells are stamped with a version other than meta.json');
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}
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// Every key a component asks for must exist, and every key defined must be asked for.
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// A typo in t('community.titel') renders the key itself on the page — visible, but only
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// to whoever happens to look; and a string nobody uses is a string a translator pays to
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// translate. Only files that actually import the module are scanned, so an unrelated
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// local function called t() cannot be mistaken for a lookup.
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{
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// Match the module however it is reached — app.jsx sits a level up from the
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// components and imports it by a shorter path.
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const sources = execFileSync('grep', ['-rlE', "from '[^']*i18n/index\\.js'", path.join(ROOT, 'src')], {
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encoding: 'utf8', stdio: ['pipe', 'pipe', 'pipe'],
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}).trim().split('\n').filter(Boolean);
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const used = new Set();
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// Keys built from a template literal — t(`roadmap.${d.k}.title`) — cannot be read
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// literally, so each becomes a pattern and any defined key it matches counts as used.
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const patterns = [];
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for (const file of sources) {
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const text = readFileSync(file, 'utf8');
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for (const match of text.matchAll(/\bt(?:List)?\(\s*['"]([^'"]+)['"]/g)) used.add(match[1]);
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for (const match of text.matchAll(/\bt(?:List)?\(\s*`([^`]+)`/g)) {
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const source = match[1]
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.split(/\$\{[^}]*\}/)
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.map((part) => part.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'))
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.join('.+'); // a key built from a variable may itself contain dots
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patterns.push(new RegExp(`^${source}$`));
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}
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}
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const defined = new Set(Object.keys(JSON.parse(read(`locales/${site.defaultLocale}.json`)).ui || {}));
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const isUsed = (key) => used.has(key) || patterns.some((re) => re.test(key));
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const missing = [...used].filter((key) => !defined.has(key)).sort();
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const unused = [...defined].filter((key) => !isUsed(key)).sort();
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assert.deepEqual(missing, [],
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`these keys are used but not defined in locales/${site.defaultLocale}.json — they would render as the key itself`);
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assert.deepEqual(unused, [],
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`these keys are defined but never used — remove them rather than have them translated`);
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assert.ok(used.size > 0, 'the scan found no t() calls at all, which means it is not scanning anything');
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assert.ok(patterns.length > 0, 'no template-literal keys were found — the dynamic-key scan is not working');
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}
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// Every locale must define exactly the same keys, or a language silently falls back to
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// English in the places its translator missed.
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for (const code of site.locales) {
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const base = Object.keys(JSON.parse(read(`locales/${site.defaultLocale}.json`)).ui || {}).sort();
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const theirs = Object.keys(JSON.parse(read(`locales/${code}.json`)).ui || {}).sort();
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assert.deepEqual(theirs, base, `locales/${code}.json does not define the same ui keys as the default locale`);
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}
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// Most of what the generator does only becomes visible with a second locale, and a
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// half-translated locale is not something to add to the live site just to exercise
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// the code. So render a throwaway two-locale site into a temp directory instead.
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{
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const tmp = mkdtempSync(path.join(tmpdir(), 'sb-i18n-'));
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const localesDir = path.join(tmp, 'locales');
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const outRoot = path.join(tmp, 'out');
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mkdirSync(localesDir, { recursive: true });
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mkdirSync(outRoot, { recursive: true });
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const en = JSON.parse(read('locales/en.json'));
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const xx = JSON.parse(JSON.stringify(en));
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Object.assign(xx, { htmlLang: 'xx', ogLocale: 'xx_XX', nativeName: 'Test' });
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xx.manifest = { name: 'XX name', short_name: 'XX', description: 'XX description' };
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writeFileSync(path.join(localesDir, 'en.json'), JSON.stringify(en, null, 2));
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writeFileSync(path.join(localesDir, 'xx.json'), JSON.stringify(xx, null, 2));
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writeFileSync(
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path.join(localesDir, 'site.json'),
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JSON.stringify({ ...site, locales: ['en', 'xx'] }, null, 2)
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);
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execFileSync('node', [path.join(ROOT, 'scripts/build-i18n.js')], {
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stdio: 'pipe',
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env: { ...process.env, I18N_LOCALES_DIR: localesDir, I18N_OUT_ROOT: outRoot },
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});
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const at = (rel) => readFileSync(path.join(outRoot, rel), 'utf8');
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const secondary = at('xx/index.html');
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const primary = at('index.html');
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// The secondary locale points at itself, not at the default one.
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assert.ok(secondary.includes('<link rel="canonical" href="https://securebit.chat/xx/">'),
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'a secondary locale must be canonical to itself, or Google will not index it');
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assert.match(secondary, /<html lang="xx">/);
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// hreflang has to be reciprocal: both pages list both locales plus x-default.
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for (const page of [primary, secondary]) {
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assert.ok(page.includes('hreflang="en" href="https://securebit.chat/"'));
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assert.ok(page.includes('hreflang="xx" href="https://securebit.chat/xx/"'));
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assert.ok(page.includes('hreflang="x-default" href="https://securebit.chat/"'));
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}
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assert.ok(secondary.includes('<meta property="og:locale:alternate" content="en_US">'));
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// Nothing on a subdirectory page may use a relative asset path: "src/app.js" from
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// /xx/ resolves to /xx/src/app.js and 404s. CSP forbids <base>, so absolute is the
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// only option available.
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const relative = [...secondary.matchAll(/\b(?:src|href)="(?!https?:|data:|#|\/)([^"]+)"/g)];
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assert.deepEqual(relative.map((m) => m[1]), [],
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'subdirectory pages must reference every asset with a root-absolute path');
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// The locale needs its own manifest: the root one resolves "./" against itself.
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assert.ok(secondary.includes('<link rel="manifest" href="/xx/manifest.json">'));
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const manifest = JSON.parse(at('xx/manifest.json'));
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assert.equal(manifest.lang, 'xx');
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assert.equal(manifest.start_url, '/xx/', 'an installed locale must launch into its own page');
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assert.equal(manifest.scope, '/', 'scope must still cover the whole site');
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assert.equal(manifest.name, 'XX name', 'manifest name should come from the locale file');
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for (const icon of manifest.icons) {
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assert.ok(icon.src.startsWith('/'), `manifest icon ${icon.src} would resolve under /xx/`);
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}
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// The Service Worker caches by exact path, so it needs the locale list stamped in;
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// without it a localized page has no shell to fall back to when offline.
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const sw = at('sw.js');
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assert.ok(sw.includes("const SW_LOCALES = ['xx'];"),
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'scripts/build-i18n.js must stamp the secondary locales into sw.js');
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assert.ok(sw.includes('LOCALE_SHELLS'), 'sw.js lost the localized-shell wiring');
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// Both served configs must route deep links inside a locale to that locale's shell.
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const nginx = at('deploy/nginx.conf');
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assert.ok(nginx.includes('~^/xx/ /xx/index.html;'), 'nginx.conf lost its locale shell entry');
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assert.ok(nginx.includes('try_files $uri $uri/ $sb_shell;'), 'nginx.conf must use the shell map');
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const htaccess = at('.htaccess');
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assert.ok(htaccess.includes('RewriteRule ^xx(/.*)?$ /xx/index.html [L]'), '.htaccess lost its locale rewrite');
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// The sitemap must carry the alternates too, not just the URLs.
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const sitemap = at('sitemap.xml');
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assert.equal((sitemap.match(/<url>/g) || []).length, 2);
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assert.ok(sitemap.includes('<xhtml:link rel="alternate" hreflang="xx" href="https://securebit.chat/xx/"/>'));
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rmSync(tmp, { recursive: true, force: true });
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}
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console.log('i18n-build.test.mjs: all assertions passed');
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