test(http): add incoming known fields test

src/js/node/_http_incoming.ts

@@ -408,6 +408,50 @@ const IncomingMessagePrototype = {
   set socket(value) {
     this[fakeSocketSymbol] = value;
   },
+  _addHeaderLine(field: string, value: string | undefined, dest: any) {
+    field = String(field);
+    const key = field.toLowerCase();
+
+    if (key === "set-cookie") {
+      if (dest[key] !== undefined) {
+        dest[key].push(value);
+      } else {
+        dest[key] = [value];
+      }
+      return;
+    }
+
+    switch (key) {
+      case "content-type":
+      case "user-agent":
+      case "referer":
+      case "host":
+      case "authorization":
+      case "proxy-authorization":
+      case "if-modified-since":
+      case "if-unmodified-since":
+      case "location":
+      case "max-forwards":
+      case "retry-after":
+      case "etag":
+      case "last-modified":
+      case "server":
+      case "age":
+      case "expires":
+        if (dest[key] === undefined) dest[key] = value;
+        return;
+      case "cookie":
+        if (dest[key] === undefined) dest[key] = value;
+        else dest[key] += "; " + value;
+        return;
+    }
+
+    if (dest[key] === undefined) {
+      dest[key] = value;
+    } else {
+      dest[key] += ", " + value;
+    }
+  },
 } satisfies typeof import("node:http").IncomingMessage.prototype;
 IncomingMessage.prototype = IncomingMessagePrototype;
 $setPrototypeDirect.$call(IncomingMessage, Readable);

test/js/node/parallel/test-http-incoming-matchKnownFields.js

@@ -0,0 +1,92 @@
+require('../common');
+const assert = require('assert');
+const IncomingMessage = require('http').IncomingMessage;
+
+function checkDest(field, result, value) {
+  const dest = {};
+
+  const incomingMessage = new IncomingMessage(field);
+  // Dest is changed by IncomingMessage._addHeaderLine
+  if (value)
+    incomingMessage._addHeaderLine(field, 'test', dest);
+  incomingMessage._addHeaderLine(field, value, dest);
+  assert.deepStrictEqual(dest, result);
+}
+
+checkDest('', { '': undefined });
+checkDest('Content-Type', { 'content-type': undefined });
+checkDest('content-type', { 'content-type': 'test' }, 'value');
+checkDest('User-Agent', { 'user-agent': undefined });
+checkDest('user-agent', { 'user-agent': 'test' }, 'value');
+checkDest('Referer', { referer: undefined });
+checkDest('referer', { referer: 'test' }, 'value');
+checkDest('Host', { host: undefined });
+checkDest('host', { host: 'test' }, 'value');
+checkDest('Authorization', { authorization: undefined }, undefined);
+checkDest('authorization', { authorization: 'test' }, 'value');
+checkDest('Proxy-Authorization', { 'proxy-authorization': undefined });
+checkDest('proxy-authorization', { 'proxy-authorization': 'test' }, 'value');
+checkDest('If-Modified-Since', { 'if-modified-since': undefined });
+checkDest('if-modified-since', { 'if-modified-since': 'test' }, 'value');
+checkDest('If-Unmodified-Since', { 'if-unmodified-since': undefined });
+checkDest('if-unmodified-since', { 'if-unmodified-since': 'test' }, 'value');
+checkDest('Form', { form: undefined });
+checkDest('form', { form: 'test, value' }, 'value');
+checkDest('Location', { location: undefined });
+checkDest('location', { location: 'test' }, 'value');
+checkDest('Max-Forwards', { 'max-forwards': undefined });
+checkDest('max-forwards', { 'max-forwards': 'test' }, 'value');
+checkDest('Retry-After', { 'retry-after': undefined });
+checkDest('retry-after', { 'retry-after': 'test' }, 'value');
+checkDest('Etag', { etag: undefined });
+checkDest('etag', { etag: 'test' }, 'value');
+checkDest('Last-Modified', { 'last-modified': undefined });
+checkDest('last-modified', { 'last-modified': 'test' }, 'value');
+checkDest('Server', { server: undefined });
+checkDest('server', { server: 'test' }, 'value');
+checkDest('Age', { age: undefined });
+checkDest('age', { age: 'test' }, 'value');
+checkDest('Expires', { expires: undefined });
+checkDest('expires', { expires: 'test' }, 'value');
+checkDest('Set-Cookie', { 'set-cookie': [undefined] });
+checkDest('set-cookie', { 'set-cookie': ['test', 'value'] }, 'value');
+checkDest('Transfer-Encoding', { 'transfer-encoding': undefined });
+checkDest('transfer-encoding', { 'transfer-encoding': 'test, value' }, 'value');
+checkDest('Date', { date: undefined });
+checkDest('date', { date: 'test, value' }, 'value');
+checkDest('Connection', { connection: undefined });
+checkDest('connection', { connection: 'test, value' }, 'value');
+checkDest('Cache-Control', { 'cache-control': undefined });
+checkDest('cache-control', { 'cache-control': 'test, value' }, 'value');
+checkDest('Transfer-Encoding', { 'transfer-encoding': undefined });
+checkDest('transfer-encoding', { 'transfer-encoding': 'test, value' }, 'value');
+checkDest('Vary', { vary: undefined });
+checkDest('vary', { vary: 'test, value' }, 'value');
+checkDest('Content-Encoding', { 'content-encoding': undefined }, undefined);
+checkDest('content-encoding', { 'content-encoding': 'test, value' }, 'value');
+checkDest('Cookie', { cookie: undefined });
+checkDest('cookie', { cookie: 'test; value' }, 'value');
+checkDest('Origin', { origin: undefined });
+checkDest('origin', { origin: 'test, value' }, 'value');
+checkDest('Upgrade', { upgrade: undefined });
+checkDest('upgrade', { upgrade: 'test, value' }, 'value');
+checkDest('Expect', { expect: undefined });
+checkDest('expect', { expect: 'test, value' }, 'value');
+checkDest('If-Match', { 'if-match': undefined });
+checkDest('if-match', { 'if-match': 'test, value' }, 'value');
+checkDest('If-None-Match', { 'if-none-match': undefined });
+checkDest('if-none-match', { 'if-none-match': 'test, value' }, 'value');
+checkDest('Accept', { accept: undefined });
+checkDest('accept', { accept: 'test, value' }, 'value');
+checkDest('Accept-Encoding', { 'accept-encoding': undefined });
+checkDest('accept-encoding', { 'accept-encoding': 'test, value' }, 'value');
+checkDest('Accept-Language', { 'accept-language': undefined });
+checkDest('accept-language', { 'accept-language': 'test, value' }, 'value');
+checkDest('X-Forwarded-For', { 'x-forwarded-for': undefined });
+checkDest('x-forwarded-for', { 'x-forwarded-for': 'test, value' }, 'value');
+checkDest('X-Forwarded-Host', { 'x-forwarded-host': undefined });
+checkDest('x-forwarded-host', { 'x-forwarded-host': 'test, value' }, 'value');
+checkDest('X-Forwarded-Proto', { 'x-forwarded-proto': undefined });
+checkDest('x-forwarded-proto', { 'x-forwarded-proto': 'test, value' }, 'value');
+checkDest('X-Foo', { 'x-foo': undefined });
+checkDest('x-foo', { 'x-foo': 'test, value' }, 'value');