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fix(node/http): normalize header names in ServerResponse (#26339)

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Fixes https://github.com/denoland/deno/issues/26115.

We weren't normalizing the headers to lower case, so code that attempted
to delete the `Content-Length` header (but used a different case) wasn't
actually removing the header.
This commit is contained in:
Nathan Whitaker 2024-10-16 17:42:15 -07:00 committed by GitHub
parent 3385d1252e
commit 458d6278d2
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2 changed files with 38 additions and 9 deletions
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19
ext/node/polyfills/http.ts
View file

@ -72,7 +72,7 @@ import { STATUS_CODES } from "node:_http_server";
import { methods as METHODS } from "node:_http_common";
const { internalRidSymbol } = core;
const { ArrayIsArray } = primordials;
const { ArrayIsArray, StringPrototypeToLowerCase } = primordials;
type Chunk = string | Buffer | Uint8Array;
@ -1270,20 +1270,21 @@ export class ServerResponse extends NodeWritable {
if (Array.isArray(value)) {
this.#hasNonStringHeaders = true;
}
this.#headers[name] = value;
this.#headers[StringPrototypeToLowerCase(name)] = value;
return this;
}
appendHeader(name: string, value: string | string[]) {
if (this.#headers[name] === undefined) {
const key = StringPrototypeToLowerCase(name);
if (this.#headers[key] === undefined) {
if (Array.isArray(value)) this.#hasNonStringHeaders = true;
this.#headers[name] = value;
this.#headers[key] = value;
} else {
this.#hasNonStringHeaders = true;
if (!Array.isArray(this.#headers[name])) {
this.#headers[name] = [this.#headers[name]];
if (!Array.isArray(this.#headers[key])) {
this.#headers[key] = [this.#headers[key]];
}
const header = this.#headers[name];
const header = this.#headers[key];
if (Array.isArray(value)) {
header.push(...value);
} else {
@ -1294,10 +1295,10 @@ export class ServerResponse extends NodeWritable {
}
getHeader(name: string) {
return this.#headers[name];
return this.#headers[StringPrototypeToLowerCase(name)];
}
removeHeader(name: string) {
delete this.#headers[name];
delete this.#headers[StringPrototypeToLowerCase(name)];
}
getHeaderNames() {
return Object.keys(this.#headers);

28
tests/unit_node/http_test.ts
View file

@ -1147,6 +1147,34 @@ Deno.test("[node/http] ServerResponse appendHeader set-cookie", async () => {
await promise;
});
Deno.test("[node/http] ServerResponse header names case insensitive", async () => {
const { promise, resolve } = Promise.withResolvers<void>();
const server = http.createServer((_req, res) => {
res.setHeader("Content-Length", "12345");
res.removeHeader("content-length");
assertEquals(res.getHeader("Content-Length"), undefined);
assert(!res.hasHeader("Content-Length"));
res.appendHeader("content-length", "12345");
res.removeHeader("Content-Length");
assertEquals(res.getHeader("content-length"), undefined);
assert(!res.hasHeader("content-length"));
res.end("Hello World");
});
server.listen(async () => {
const { port } = server.address() as { port: number };
const res = await fetch(`http://localhost:${port}`);
assertEquals(res.headers.get("Content-Length"), null);
assertEquals(res.headers.get("content-length"), null);
assertEquals(await res.text(), "Hello World");
server.close(() => {
resolve();
});
});
await promise;
});
Deno.test("[node/http] IncomingMessage override", () => {
const req = new http.IncomingMessage(new net.Socket());
// https://github.com/dougmoscrop/serverless-http/blob/3aaa6d0fe241109a8752efb011c242d249f32368/lib/request.js#L20-L30