Upload server.js

server.js

@@ -24,6 +24,9 @@ function normalizeUrl(u) {
   if (!u) return null
   let s = String(u).trim()
   if (!s) return null
+  if (!/^https?:\/\//i.test(s)) {
+    s = 'https://' + s
+  }
   try {
     const url = new URL(s)
     if (url.protocol !== 'http:' && url.protocol !== 'https:') return null
@@ -34,7 +37,7 @@ function normalizeUrl(u) {
   }
 }
 
-async function fetchText(url, timeoutMs) {
+async function fetchText(url, timeoutMs, clientUA) {
   const controller = new AbortController()
   const t = setTimeout(() => controller.abort(), timeoutMs)
 
@@ -43,7 +46,7 @@ async function fetchText(url, timeoutMs) {
       redirect: 'follow',
       signal: controller.signal,
       headers: {
-        'user-agent': 'lampa-es5-proxy/0.1'
+        'user-agent': clientUA ? (clientUA + ' Lampa') : 'Mozilla/5.0 (Web0S; Linux/SmartTV) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.79 Safari/537.36 Lampa'
       }
     })
 
@@ -136,9 +139,9 @@ function jsWrapper(serverBase, baseUrl, transpiledCode, needRegenerator) {
   return parts.join('\n')
 }
 
-async function cssInline(url, depth) {
+async function cssInline(url, depth, clientUA) {
   if (depth > MAX_CSS_DEPTH) return ''
-  const { text } = await fetchText(url, 25_000)
+  const { text } = await fetchText(url, 25_000, clientUA)
   const base = url.replace(/[?#].*$/, '').replace(/[^/]*$/, '')
   let css = text
 
@@ -160,7 +163,7 @@ async function cssInline(url, depth) {
   for (let i = 0; i < imports.length; i++) {
     let inlined = ''
     try {
-      inlined = await cssInline(imports[i], depth + 1)
+      inlined = await cssInline(imports[i], depth + 1, clientUA)
     } catch (e) {
       inlined = ''
     }
@@ -197,7 +200,7 @@ app.get('/s', async (req, res) => {
   if (!source) return res.status(400).type('text/plain').send('Bad url')
 
   try {
-    const css = await cssInline(source, 0)
+    const css = await cssInline(source, 0, req.headers['user-agent'])
     res.setHeader('content-type', 'text/css; charset=utf-8')
     res.setHeader('cache-control', 'public, max-age=600')
     res.status(200).send(css)
@@ -212,7 +215,7 @@ app.get('/p', async (req, res) => {
   if (!source) return res.status(400).type('text/plain').send('Bad url')
 
   try {
-    const { text } = await fetchText(source, 25_000)
+    const { text } = await fetchText(source, 25_000, req.headers['user-agent'])
     const result = await babel.transformAsync(text, {
       babelrc: false,
       configFile: false,