mirror of
https://github.com/trambarhq/relaks-wordpress-example.git
synced 2025-09-02 04:32:37 +02:00
Upgraded to Babel 7.
Upgraded to latest version of Relaks and related libraries. Reduced indentation from 4 to 2.
This commit is contained in:
Chung Leong
256
server/index.js
256
server/index.js
@@ -14,9 +14,9 @@ const NginxCache = require('./nginx-cache');
|
||||
|
||||
// enable DNS caching
|
||||
const dnsCache = Bluebird.promisifyAll(DNSCache({
|
||||
enable: true,
|
||||
ttl: 300,
|
||||
cachesize: 100
|
||||
enable: true,
|
||||
ttl: 300,
|
||||
cachesize: 100
|
||||
}));
|
||||
|
||||
const SERVER_PORT = 80;
|
||||
@@ -42,166 +42,166 @@ app.listen(SERVER_PORT);
|
||||
scheduleCachePurge();
|
||||
|
||||
async function handleTimestampRequest(req, res, next) {
|
||||
try {
|
||||
const now = new Date;
|
||||
const ts = now.toISOString();
|
||||
res.set({ 'Cache-Control': CACHE_CONTROL });
|
||||
res.type('text').send(ts);
|
||||
} catch (err) {
|
||||
next(err);
|
||||
}
|
||||
try {
|
||||
const now = new Date;
|
||||
const ts = now.toISOString();
|
||||
res.set({ 'Cache-Control': CACHE_CONTROL });
|
||||
res.type('text').send(ts);
|
||||
} catch (err) {
|
||||
next(err);
|
||||
}
|
||||
}
|
||||
|
||||
async function handleCacheStatusRequest(req, res, next) {
|
||||
try {
|
||||
res.set({ 'X-Accel-Expires': 0 });
|
||||
res.type('html');
|
||||
res.write(`<html><head><title>Nginx Cache</title></head><body>`);
|
||||
res.write(`<table border="1" cellpadding="2">`);
|
||||
res.write(`<thead><th>URL</th><th>MD5</th><th>Modified time</th><th>Size</th></thead>`);
|
||||
res.write(`<tbody>`);
|
||||
const entries = await NginxCache.read();
|
||||
const total = 0;
|
||||
for (let { url, md5, mtime, size } of _.orderBy(entries, 'mtime', 'desc')) {
|
||||
const date = Moment(mtime).format('LLL');
|
||||
const sizeKB = _.round(size / 1024, 2);
|
||||
res.write(`<tr><td>${url}</td><td>${md5}</td><td>${date}</td><td>${sizeKB}KB</td></tr>`)
|
||||
total += size;
|
||||
}
|
||||
const totalMB = _.round(total / 1024 / 1024, 2);
|
||||
res.write(`<tr><td colspan="3">Total</td><td>${totalMB}MB</td></tr>`)
|
||||
res.write(`</tbody>`);
|
||||
res.write(`</table>`);
|
||||
res.write(`</body></html>`);
|
||||
res.end();
|
||||
} catch (err) {
|
||||
next(err);
|
||||
try {
|
||||
res.set({ 'X-Accel-Expires': 0 });
|
||||
res.type('html');
|
||||
res.write(`<html><head><title>Nginx Cache</title></head><body>`);
|
||||
res.write(`<table border="1" cellpadding="2">`);
|
||||
res.write(`<thead><th>URL</th><th>MD5</th><th>Modified time</th><th>Size</th></thead>`);
|
||||
res.write(`<tbody>`);
|
||||
const entries = await NginxCache.read();
|
||||
const total = 0;
|
||||
for (let { url, md5, mtime, size } of _.orderBy(entries, 'mtime', 'desc')) {
|
||||
const date = Moment(mtime).format('LLL');
|
||||
const sizeKB = _.round(size / 1024, 2);
|
||||
res.write(`<tr><td>${url}</td><td>${md5}</td><td>${date}</td><td>${sizeKB}KB</td></tr>`)
|
||||
total += size;
|
||||
}
|
||||
const totalMB = _.round(total / 1024 / 1024, 2);
|
||||
res.write(`<tr><td colspan="3">Total</td><td>${totalMB}MB</td></tr>`)
|
||||
res.write(`</tbody>`);
|
||||
res.write(`</table>`);
|
||||
res.write(`</body></html>`);
|
||||
res.end();
|
||||
} catch (err) {
|
||||
next(err);
|
||||
}
|
||||
}
|
||||
|
||||
async function handleJSONRequest(req, res, next) {
|
||||
try {
|
||||
// exclude asterisk
|
||||
const root = req.route.path.substr(0, req.route.path.length - 1);
|
||||
const path = `/wp-json/${req.url.substr(root.length)}`;
|
||||
const json = await JSONRetriever.fetch(path);
|
||||
if (json.total) {
|
||||
res.set({ 'X-WP-Total': json.total });
|
||||
}
|
||||
res.set({ 'Cache-Control': CACHE_CONTROL });
|
||||
res.send(json.text);
|
||||
} catch (err) {
|
||||
next(err);
|
||||
try {
|
||||
// exclude asterisk
|
||||
const root = req.route.path.substr(0, req.route.path.length - 1);
|
||||
const path = `/wp-json/${req.url.substr(root.length)}`;
|
||||
const json = await JSONRetriever.fetch(path);
|
||||
if (json.total) {
|
||||
res.set({ 'X-WP-Total': json.total });
|
||||
}
|
||||
res.set({ 'Cache-Control': CACHE_CONTROL });
|
||||
res.send(json.text);
|
||||
} catch (err) {
|
||||
next(err);
|
||||
}
|
||||
}
|
||||
|
||||
const pageDependencies = {};
|
||||
|
||||
async function handlePageRequest(req, res, next) {
|
||||
try {
|
||||
const path = req.url;
|
||||
const noJS = (req.query.js === '0');
|
||||
const target = (req.isSpider() || noJS) ? 'seo' : 'hydrate';
|
||||
const page = await PageRenderer.generate(path, target);
|
||||
if (target === 'seo') {
|
||||
// not caching content generated for SEO
|
||||
res.set({ 'X-Accel-Expires': 0 });
|
||||
} else {
|
||||
res.set({ 'Cache-Control': CACHE_CONTROL });
|
||||
try {
|
||||
const path = req.url;
|
||||
const noJS = (req.query.js === '0');
|
||||
const target = (req.isSpider() || noJS) ? 'seo' : 'hydrate';
|
||||
const page = await PageRenderer.generate(path, target);
|
||||
if (target === 'seo') {
|
||||
// not caching content generated for SEO
|
||||
res.set({ 'X-Accel-Expires': 0 });
|
||||
} else {
|
||||
res.set({ 'Cache-Control': CACHE_CONTROL });
|
||||
|
||||
// remember the URLs used by the page
|
||||
pageDependencies[path] = page.sourceURLs;
|
||||
}
|
||||
res.type('html').send(page.html);
|
||||
} catch (err) {
|
||||
next(err);
|
||||
// remember the URLs used by the page
|
||||
pageDependencies[path] = page.sourceURLs;
|
||||
}
|
||||
res.type('html').send(page.html);
|
||||
} catch (err) {
|
||||
next(err);
|
||||
}
|
||||
}
|
||||
|
||||
async function handlePurgeRequest(req, res) {
|
||||
// verify that require is coming from WordPress
|
||||
const remoteIP = req.connection.remoteAddress;
|
||||
res.end();
|
||||
const wordpressIP = await dnsCache.lookupAsync(WORDPRESS_HOST.replace(/^https?:\/\//, ''));
|
||||
if (remoteIP !== `::ffff:${wordpressIP}`) {
|
||||
return;
|
||||
// verify that require is coming from WordPress
|
||||
const remoteIP = req.connection.remoteAddress;
|
||||
res.end();
|
||||
const wordpressIP = await dnsCache.lookupAsync(WORDPRESS_HOST.replace(/^https?:\/\//, ''));
|
||||
if (remoteIP !== `::ffff:${wordpressIP}`) {
|
||||
return;
|
||||
}
|
||||
|
||||
const url = req.url;
|
||||
const method = req.headers['x-purge-method'];
|
||||
if (method === 'regex' && url === '/.*') {
|
||||
pageDependencies = {};
|
||||
await NginxCache.purge(/.*/);
|
||||
await PageRenderer.prefetch('/');
|
||||
} else if (method === 'default') {
|
||||
// look for URLs that looks like /wp-json/wp/v2/pages/4/
|
||||
const m = /^\/wp\-json\/(\w+\/\w+\/\w+)\/(\d+)\/$/.exec(url);
|
||||
if (!m) {
|
||||
return;
|
||||
}
|
||||
|
||||
const url = req.url;
|
||||
const method = req.headers['x-purge-method'];
|
||||
if (method === 'regex' && url === '/.*') {
|
||||
pageDependencies = {};
|
||||
await NginxCache.purge(/.*/);
|
||||
await PageRenderer.prefetch('/');
|
||||
} else if (method === 'default') {
|
||||
// look for URLs that looks like /wp-json/wp/v2/pages/4/
|
||||
const m = /^\/wp\-json\/(\w+\/\w+\/\w+)\/(\d+)\/$/.exec(url);
|
||||
if (!m) {
|
||||
return;
|
||||
}
|
||||
|
||||
// purge matching JSON files
|
||||
const folderPath = m[1];
|
||||
const pattern = new RegExp(`^/json/${folderPath}.*`);
|
||||
await NginxCache.purge(pattern);
|
||||
|
||||
// purge the timestamp so CSR code knows something has changed
|
||||
await NginxCache.purge('/.mtime');
|
||||
|
||||
// look for pages that made use of the purged JSONs
|
||||
for (let [ path, sourceURLs ] of Object.entries(pageDependencies)) {
|
||||
const affected = sourceURLs.some((sourceURL) => {
|
||||
return pattern.test(sourceURL);
|
||||
});
|
||||
if (affected) {
|
||||
// purge the cached page
|
||||
await NginxCache.purge(path);
|
||||
delete pageDependencies[path];
|
||||
|
||||
if (path === '/') {
|
||||
await PageRenderer.prefetch('/');
|
||||
}
|
||||
}
|
||||
// purge matching JSON files
|
||||
const folderPath = m[1];
|
||||
const pattern = new RegExp(`^/json/${folderPath}.*`);
|
||||
await NginxCache.purge(pattern);
|
||||
|
||||
// purge the timestamp so CSR code knows something has changed
|
||||
await NginxCache.purge('/.mtime');
|
||||
|
||||
// look for pages that made use of the purged JSONs
|
||||
for (let [ path, sourceURLs ] of Object.entries(pageDependencies)) {
|
||||
const affected = sourceURLs.some((sourceURL) => {
|
||||
return pattern.test(sourceURL);
|
||||
});
|
||||
if (affected) {
|
||||
// purge the cached page
|
||||
await NginxCache.purge(path);
|
||||
delete pageDependencies[path];
|
||||
|
||||
if (path === '/') {
|
||||
await PageRenderer.prefetch('/');
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function handleError(err, req, res, next) {
|
||||
if (!res.headersSent) {
|
||||
const status = err.status || 400;
|
||||
res.type('text').status(status).send(err.message);
|
||||
}
|
||||
console.error(err);
|
||||
if (!res.headersSent) {
|
||||
const status = err.status || 400;
|
||||
res.type('text').status(status).send(err.message);
|
||||
}
|
||||
console.error(err);
|
||||
}
|
||||
|
||||
async function scheduleCachePurge() {
|
||||
await Bluebird.delay(1000);
|
||||
for(;;) {
|
||||
try {
|
||||
await NginxCache.purge(/.*/);
|
||||
await PageRenderer.prefetch('/');
|
||||
await Bluebird.delay(1000);
|
||||
for(;;) {
|
||||
try {
|
||||
await NginxCache.purge(/.*/);
|
||||
await PageRenderer.prefetch('/');
|
||||
|
||||
// purge the cache again the next day at 4 AM
|
||||
const tomorrow = Moment().add(1, 'day').startOf('day').add(4, 'hour');
|
||||
await Bluebird.delay(tomorrow - Moment());
|
||||
} catch (err) {
|
||||
await Bluebird.delay(60000);
|
||||
}
|
||||
// purge the cache again the next day at 4 AM
|
||||
const tomorrow = Moment().add(1, 'day').startOf('day').add(4, 'hour');
|
||||
await Bluebird.delay(tomorrow - Moment());
|
||||
} catch (err) {
|
||||
await Bluebird.delay(60000);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// restart process when a source file changes
|
||||
Object.keys(require.cache).forEach((path) => {
|
||||
if (!/node_modules/.test(path)) {
|
||||
FS.watchFile(path, (curr, prev) => {
|
||||
if (curr.mtime !== prev.mtime) {
|
||||
console.log('Restarting');
|
||||
process.exit(0);
|
||||
}
|
||||
});
|
||||
}
|
||||
if (!/node_modules/.test(path)) {
|
||||
FS.watchFile(path, (curr, prev) => {
|
||||
if (curr.mtime !== prev.mtime) {
|
||||
console.log('Restarting');
|
||||
process.exit(0);
|
||||
}
|
||||
});
|
||||
}
|
||||
});
|
||||
|
||||
process.on('unhandledRejection', (err) => {
|
||||
console.error(err);
|
||||
console.error(err);
|
||||
});
|
||||
|
||||
Reference in New Issue
Block a user