modified

build/node_modules/inflation/index.js

@@ -0,0 +1,41 @@
+
+var zlib = require('zlib')
+
+module.exports = inflate
+
+function inflate(stream, options) {
+  if (!stream) {
+    throw new TypeError('argument stream is required')
+  }
+
+  options = options || {}
+
+  var encoding = options.encoding
+    || (stream.headers && stream.headers['content-encoding'])
+    || 'identity'
+  
+  var decompression
+  switch (encoding) {
+  case 'gzip':
+  case 'deflate':
+    delete options.brotli
+    delete options.encoding
+    decompression = zlib.createUnzip(options)
+    break
+  case 'br':
+    if (zlib.createBrotliDecompress) {
+      decompression = zlib.createBrotliDecompress(options.brotli)
+    }
+    break
+  case 'identity':
+    return stream
+  }
+
+  if (!decompression) {
+    var err = new Error('Unsupported Content-Encoding: ' + encoding)
+    err.status = 415
+    throw err
+  }
+
+  return stream.pipe(decompression)
+}