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fix(ext/node): refactor http.ServerResponse into function class (#26210)
While testing, I found out that light-my-request relies on `ServerResponse.connection`, which is deprecated, so I added that and `socket`, the non deprecated property. It also relies on an undocumented `_header` property, apparently for [raw header processing](https://github.com/fastify/light-my-request/blob/v6.1.0/lib/response.js#L180-L186). I added it as an empty string, feel free to provide other approaches. Fixes #19901 Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
This commit is contained in:
Nicola Bovolato
GitHub
parent
fd8bf08271
commit
8dd6177c62
@ -34,6 +34,7 @@ import {
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finished,
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Readable as NodeReadable,
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Writable as NodeWritable,
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WritableOptions as NodeWritableOptions,
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} from "node:stream";
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import {
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kUniqueHeaders,
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@ -70,6 +71,7 @@ import { resourceForReadableStream } from "ext:deno_web/06_streams.js";
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import { UpgradedConn } from "ext:deno_net/01_net.js";
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import { STATUS_CODES } from "node:_http_server";
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import { methods as METHODS } from "node:_http_common";
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import { deprecate } from "node:util";
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const { internalRidSymbol } = core;
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const { ArrayIsArray, StringPrototypeToLowerCase } = primordials;
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@ -1184,49 +1186,95 @@ function onError(self, error, cb) {
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}
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}
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export class ServerResponse extends NodeWritable {
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statusCode = 200;
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statusMessage?: string = undefined;
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#headers: Record<string, string | string[]> = { __proto__: null };
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#hasNonStringHeaders: boolean = false;
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#readable: ReadableStream;
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override writable = true;
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// used by `npm:on-finished`
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finished = false;
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headersSent = false;
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#resolve: (value: Response | PromiseLike<Response>) => void;
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export type ServerResponse = {
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statusCode: number;
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statusMessage?: string;
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_headers: Record<string, string | string[]>;
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_hasNonStringHeaders: boolean;
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_readable: ReadableStream;
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finished: boolean;
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headersSent: boolean;
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_resolve: (value: Response | PromiseLike<Response>) => void;
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// deno-lint-ignore no-explicit-any
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#socketOverride: any | null = null;
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_socketOverride: any | null;
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// deno-lint-ignore no-explicit-any
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socket: any | null;
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static #enqueue(controller: ReadableStreamDefaultController, chunk: Chunk) {
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try {
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if (typeof chunk === "string") {
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controller.enqueue(ENCODER.encode(chunk));
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} else {
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controller.enqueue(chunk);
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}
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} catch (_) {
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// The stream might have been closed. Ignore the error.
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}
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}
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setHeader(name: string, value: string | string[]): void;
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appendHeader(name: string, value: string | string[]): void;
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getHeader(name: string): string | string[];
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removeHeader(name: string): void;
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getHeaderNames(): string[];
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getHeaders(): Record<string, string | number | string[]>;
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hasHeader(name: string): boolean;
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/** Returns true if the response body should be null with the given
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* http status code */
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static #bodyShouldBeNull(status: number) {
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return status === 101 || status === 204 || status === 205 || status === 304;
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}
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writeHead(
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status: number,
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statusMessage?: string,
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headers?:
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| Record<string, string | number | string[]>
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| Array<[string, string]>,
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): void;
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writeHead(
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status: number,
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headers?:
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| Record<string, string | number | string[]>
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| Array<[string, string]>,
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): void;
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constructor(
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_ensureHeaders(singleChunk?: Chunk): void;
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respond(final: boolean, singleChunk?: Chunk): void;
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// deno-lint-ignore no-explicit-any
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end(chunk?: any, encoding?: any, cb?: any): void;
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flushHeaders(): void;
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_implicitHeader(): void;
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// Undocumented field used by `npm:light-my-request`.
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_header: string;
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assignSocket(socket): void;
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detachSocket(socket): void;
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} & { -readonly [K in keyof NodeWritable]: NodeWritable[K] };
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type ServerResponseStatic = {
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new (
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resolve: (value: Response | PromiseLike<Response>) => void,
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socket: FakeSocket,
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) {
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let controller: ReadableByteStreamController;
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const readable = new ReadableStream({
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start(c) {
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controller = c as ReadableByteStreamController;
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},
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});
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super({
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): ServerResponse;
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_enqueue(controller: ReadableStreamDefaultController, chunk: Chunk): void;
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_bodyShouldBeNull(statusCode: number): boolean;
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};
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export const ServerResponse = function (
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this: ServerResponse,
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resolve: (value: Response | PromiseLike<Response>) => void,
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socket: FakeSocket,
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) {
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this.statusCode = 200;
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this.statusMessage = undefined;
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this._headers = { __proto__: null };
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this._hasNonStringHeaders = false;
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this.writable = true;
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// used by `npm:on-finished`
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this.finished = false;
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this.headersSent = false;
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this._socketOverride = null;
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let controller: ReadableByteStreamController;
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const readable = new ReadableStream({
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start(c) {
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controller = c as ReadableByteStreamController;
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},
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});
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NodeWritable.call(
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this,
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{
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autoDestroy: true,
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defaultEncoding: "utf-8",
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emitClose: true,
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@ -1235,16 +1283,16 @@ export class ServerResponse extends NodeWritable {
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write: (chunk, encoding, cb) => {
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// Writes chunks are directly written to the socket if
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// one is assigned via assignSocket()
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if (this.#socketOverride && this.#socketOverride.writable) {
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this.#socketOverride.write(chunk, encoding);
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if (this._socketOverride && this._socketOverride.writable) {
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this._socketOverride.write(chunk, encoding);
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return cb();
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}
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if (!this.headersSent) {
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ServerResponse.#enqueue(controller, chunk);
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ServerResponse._enqueue(controller, chunk);
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this.respond(false);
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return cb();
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}
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ServerResponse.#enqueue(controller, chunk);
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ServerResponse._enqueue(controller, chunk);
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return cb();
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},
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final: (cb) => {
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@ -1260,193 +1308,269 @@ export class ServerResponse extends NodeWritable {
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}
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return cb(null);
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},
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});
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this.#readable = readable;
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this.#resolve = resolve;
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this.socket = socket;
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}
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} satisfies NodeWritableOptions,
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);
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setHeader(name: string, value: string | string[]) {
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if (Array.isArray(value)) {
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this.#hasNonStringHeaders = true;
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}
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this.#headers[StringPrototypeToLowerCase(name)] = value;
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return this;
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}
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this._readable = readable;
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this._resolve = resolve;
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this.socket = socket;
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appendHeader(name: string, value: string | string[]) {
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const key = StringPrototypeToLowerCase(name);
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if (this.#headers[key] === undefined) {
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if (Array.isArray(value)) this.#hasNonStringHeaders = true;
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this.#headers[key] = value;
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this._header = "";
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} as unknown as ServerResponseStatic;
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Object.setPrototypeOf(ServerResponse.prototype, NodeWritable.prototype);
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Object.setPrototypeOf(ServerResponse, NodeWritable);
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ServerResponse._enqueue = function (
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this: ServerResponse,
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controller: ReadableStreamDefaultController,
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chunk: Chunk,
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) {
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try {
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if (typeof chunk === "string") {
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controller.enqueue(ENCODER.encode(chunk));
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} else {
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this.#hasNonStringHeaders = true;
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if (!Array.isArray(this.#headers[key])) {
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this.#headers[key] = [this.#headers[key]];
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controller.enqueue(chunk);
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}
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} catch (_) {
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// The stream might have been closed. Ignore the error.
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}
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};
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/** Returns true if the response body should be null with the given
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* http status code */
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ServerResponse._bodyShouldBeNull = function (
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this: ServerResponse,
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status: number,
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) {
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return status === 101 || status === 204 || status === 205 || status === 304;
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};
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ServerResponse.prototype.setHeader = function (
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this: ServerResponse,
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name: string,
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value: string | string[],
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) {
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if (Array.isArray(value)) {
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this._hasNonStringHeaders = true;
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}
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this._headers[StringPrototypeToLowerCase(name)] = value;
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return this;
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};
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ServerResponse.prototype.appendHeader = function (
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this: ServerResponse,
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name: string,
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value: string | string[],
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) {
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const key = StringPrototypeToLowerCase(name);
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if (this._headers[key] === undefined) {
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if (Array.isArray(value)) this._hasNonStringHeaders = true;
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this._headers[key] = value;
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} else {
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this._hasNonStringHeaders = true;
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if (!Array.isArray(this._headers[key])) {
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this._headers[key] = [this._headers[key]];
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}
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const header = this._headers[key];
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if (Array.isArray(value)) {
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header.push(...value);
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} else {
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header.push(value);
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}
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}
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return this;
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};
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ServerResponse.prototype.getHeader = function (
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this: ServerResponse,
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name: string,
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) {
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return this._headers[StringPrototypeToLowerCase(name)];
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};
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ServerResponse.prototype.removeHeader = function (
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this: ServerResponse,
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name: string,
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) {
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delete this._headers[StringPrototypeToLowerCase(name)];
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};
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ServerResponse.prototype.getHeaderNames = function (this: ServerResponse) {
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return Object.keys(this._headers);
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};
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ServerResponse.prototype.getHeaders = function (
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this: ServerResponse,
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): Record<string, string | number | string[]> {
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return { __proto__: null, ...this._headers };
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};
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ServerResponse.prototype.hasHeader = function (
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this: ServerResponse,
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name: string,
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) {
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return Object.hasOwn(this._headers, name);
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};
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ServerResponse.prototype.writeHead = function (
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this: ServerResponse,
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status: number,
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statusMessageOrHeaders?:
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| string
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| Record<string, string | number | string[]>
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| Array<[string, string]>,
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maybeHeaders?:
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| Record<string, string | number | string[]>
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| Array<[string, string]>,
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) {
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this.statusCode = status;
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let headers = null;
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if (typeof statusMessageOrHeaders === "string") {
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this.statusMessage = statusMessageOrHeaders;
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if (maybeHeaders !== undefined) {
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headers = maybeHeaders;
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}
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} else if (statusMessageOrHeaders !== undefined) {
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headers = statusMessageOrHeaders;
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}
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if (headers !== null) {
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if (ArrayIsArray(headers)) {
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headers = headers as Array<[string, string]>;
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for (let i = 0; i < headers.length; i++) {
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this.appendHeader(headers[i][0], headers[i][1]);
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}
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const header = this.#headers[key];
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if (Array.isArray(value)) {
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header.push(...value);
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} else {
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header.push(value);
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} else {
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headers = headers as Record<string, string>;
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for (const k in headers) {
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if (Object.hasOwn(headers, k)) {
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this.setHeader(k, headers[k]);
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}
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}
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}
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return this;
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}
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getHeader(name: string) {
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return this.#headers[StringPrototypeToLowerCase(name)];
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}
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removeHeader(name: string) {
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delete this.#headers[StringPrototypeToLowerCase(name)];
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}
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getHeaderNames() {
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return Object.keys(this.#headers);
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}
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getHeaders(): Record<string, string | number | string[]> {
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// @ts-ignore Ignore null __proto__
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return { __proto__: null, ...this.#headers };
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}
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hasHeader(name: string) {
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return Object.hasOwn(this.#headers, name);
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}
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return this;
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};
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writeHead(
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status: number,
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statusMessage?: string,
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headers?:
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| Record<string, string | number | string[]>
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| Array<[string, string]>,
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): this;
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writeHead(
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status: number,
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headers?:
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| Record<string, string | number | string[]>
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| Array<[string, string]>,
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): this;
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writeHead(
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status: number,
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statusMessageOrHeaders?:
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| string
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| Record<string, string | number | string[]>
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| Array<[string, string]>,
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maybeHeaders?:
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| Record<string, string | number | string[]>
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| Array<[string, string]>,
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): this {
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this.statusCode = status;
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ServerResponse.prototype._ensureHeaders = function (
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this: ServerResponse,
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singleChunk?: Chunk,
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) {
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if (this.statusCode === 200 && this.statusMessage === undefined) {
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this.statusMessage = "OK";
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}
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if (typeof singleChunk === "string" && !this.hasHeader("content-type")) {
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this.setHeader("content-type", "text/plain;charset=UTF-8");
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}
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};
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let headers = null;
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if (typeof statusMessageOrHeaders === "string") {
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this.statusMessage = statusMessageOrHeaders;
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if (maybeHeaders !== undefined) {
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headers = maybeHeaders;
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}
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} else if (statusMessageOrHeaders !== undefined) {
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headers = statusMessageOrHeaders;
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}
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if (headers !== null) {
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if (ArrayIsArray(headers)) {
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headers = headers as Array<[string, string]>;
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for (let i = 0; i < headers.length; i++) {
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this.appendHeader(headers[i][0], headers[i][1]);
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ServerResponse.prototype.respond = function (
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this: ServerResponse,
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final: boolean,
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singleChunk?: Chunk,
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) {
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this.headersSent = true;
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this._ensureHeaders(singleChunk);
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let body = singleChunk ?? (final ? null : this._readable);
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if (ServerResponse._bodyShouldBeNull(this.statusCode)) {
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body = null;
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}
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let headers: Record<string, string> | [string, string][] = this
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._headers as Record<string, string>;
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if (this._hasNonStringHeaders) {
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headers = [];
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// Guard is not needed as this is a null prototype object.
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// deno-lint-ignore guard-for-in
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for (const key in this._headers) {
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const entry = this._headers[key];
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if (Array.isArray(entry)) {
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for (const value of entry) {
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headers.push([key, value]);
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}
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} else {
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headers = headers as Record<string, string>;
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for (const k in headers) {
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if (Object.hasOwn(headers, k)) {
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this.setHeader(k, headers[k]);
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}
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}
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headers.push([key, entry]);
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}
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}
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return this;
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}
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#ensureHeaders(singleChunk?: Chunk) {
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if (this.statusCode === 200 && this.statusMessage === undefined) {
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this.statusMessage = "OK";
|
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}
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if (
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typeof singleChunk === "string" &&
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!this.hasHeader("content-type")
|
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) {
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this.setHeader("content-type", "text/plain;charset=UTF-8");
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}
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}
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respond(final: boolean, singleChunk?: Chunk) {
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this.headersSent = true;
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this.#ensureHeaders(singleChunk);
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let body = singleChunk ?? (final ? null : this.#readable);
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if (ServerResponse.#bodyShouldBeNull(this.statusCode)) {
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body = null;
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}
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let headers: Record<string, string> | [string, string][] = this
|
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.#headers as Record<string, string>;
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if (this.#hasNonStringHeaders) {
|
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headers = [];
|
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// Guard is not needed as this is a null prototype object.
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// deno-lint-ignore guard-for-in
|
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for (const key in this.#headers) {
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const entry = this.#headers[key];
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if (Array.isArray(entry)) {
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for (const value of entry) {
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headers.push([key, value]);
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}
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} else {
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headers.push([key, entry]);
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}
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}
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}
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this.#resolve(
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new Response(body, {
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headers,
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status: this.statusCode,
|
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statusText: this.statusMessage,
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}),
|
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);
|
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}
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this._resolve(
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new Response(body, {
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headers,
|
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status: this.statusCode,
|
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statusText: this.statusMessage,
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}),
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);
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};
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ServerResponse.prototype.end = function (
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this: ServerResponse,
|
||||
// deno-lint-ignore no-explicit-any
|
||||
override end(chunk?: any, encoding?: any, cb?: any): this {
|
||||
this.finished = true;
|
||||
if (!chunk && "transfer-encoding" in this.#headers) {
|
||||
// FIXME(bnoordhuis) Node sends a zero length chunked body instead, i.e.,
|
||||
// the trailing "0\r\n", but respondWith() just hangs when I try that.
|
||||
this.#headers["content-length"] = "0";
|
||||
delete this.#headers["transfer-encoding"];
|
||||
}
|
||||
|
||||
// @ts-expect-error The signature for cb is stricter than the one implemented here
|
||||
return super.end(chunk, encoding, cb);
|
||||
chunk?: any,
|
||||
// deno-lint-ignore no-explicit-any
|
||||
encoding?: any,
|
||||
// deno-lint-ignore no-explicit-any
|
||||
cb?: any,
|
||||
) {
|
||||
this.finished = true;
|
||||
if (!chunk && "transfer-encoding" in this._headers) {
|
||||
// FIXME(bnoordhuis) Node sends a zero length chunked body instead, i.e.,
|
||||
// the trailing "0\r\n", but respondWith() just hangs when I try that.
|
||||
this._headers["content-length"] = "0";
|
||||
delete this._headers["transfer-encoding"];
|
||||
}
|
||||
|
||||
flushHeaders() {
|
||||
// no-op
|
||||
}
|
||||
// @ts-expect-error The signature for cb is stricter than the one implemented here
|
||||
NodeWritable.prototype.end.call(this, chunk, encoding, cb);
|
||||
};
|
||||
|
||||
// Undocumented API used by `npm:compression`.
|
||||
_implicitHeader() {
|
||||
this.writeHead(this.statusCode);
|
||||
}
|
||||
ServerResponse.prototype.flushHeaders = function (this: ServerResponse) {
|
||||
// no-op
|
||||
};
|
||||
|
||||
assignSocket(socket) {
|
||||
if (socket._httpMessage) {
|
||||
throw new ERR_HTTP_SOCKET_ASSIGNED();
|
||||
}
|
||||
socket._httpMessage = this;
|
||||
this.#socketOverride = socket;
|
||||
}
|
||||
// Undocumented API used by `npm:compression`.
|
||||
ServerResponse.prototype._implicitHeader = function (this: ServerResponse) {
|
||||
this.writeHead(this.statusCode);
|
||||
};
|
||||
|
||||
detachSocket(socket) {
|
||||
assert(socket._httpMessage === this);
|
||||
socket._httpMessage = null;
|
||||
this.#socketOverride = null;
|
||||
ServerResponse.prototype.assignSocket = function (
|
||||
this: ServerResponse,
|
||||
socket,
|
||||
) {
|
||||
if (socket._httpMessage) {
|
||||
throw new ERR_HTTP_SOCKET_ASSIGNED();
|
||||
}
|
||||
}
|
||||
socket._httpMessage = this;
|
||||
this._socketOverride = socket;
|
||||
};
|
||||
|
||||
ServerResponse.prototype.detachSocket = function (
|
||||
this: ServerResponse,
|
||||
socket,
|
||||
) {
|
||||
assert(socket._httpMessage === this);
|
||||
socket._httpMessage = null;
|
||||
this._socketOverride = null;
|
||||
};
|
||||
|
||||
Object.defineProperty(ServerResponse.prototype, "connection", {
|
||||
get: deprecate(
|
||||
function (this: ServerResponse) {
|
||||
return this._socketOverride;
|
||||
},
|
||||
"ServerResponse.prototype.connection is deprecated",
|
||||
"DEP0066",
|
||||
),
|
||||
set: deprecate(
|
||||
// deno-lint-ignore no-explicit-any
|
||||
function (this: ServerResponse, socket: any) {
|
||||
this._socketOverride = socket;
|
||||
},
|
||||
"ServerResponse.prototype.connection is deprecated",
|
||||
"DEP0066",
|
||||
),
|
||||
});
|
||||
|
||||
// TODO(@AaronO): optimize
|
||||
export class IncomingMessageForServer extends NodeReadable {
|
||||
|
||||
@ -3,10 +3,14 @@
|
||||
// deno-lint-ignore-file no-console
|
||||
|
||||
import EventEmitter from "node:events";
|
||||
import http, { type RequestOptions, type ServerResponse } from "node:http";
|
||||
import http, {
|
||||
IncomingMessage,
|
||||
type RequestOptions,
|
||||
ServerResponse,
|
||||
} from "node:http";
|
||||
import url from "node:url";
|
||||
import https from "node:https";
|
||||
import net from "node:net";
|
||||
import net, { Socket } from "node:net";
|
||||
import fs from "node:fs";
|
||||
import { text } from "node:stream/consumers";
|
||||
|
||||
@ -1704,3 +1708,75 @@ Deno.test("[node/http] upgraded socket closes when the server closed without clo
|
||||
await clientSocketClosed.promise;
|
||||
await serverProcessClosed.promise;
|
||||
});
|
||||
|
||||
// deno-lint-ignore require-await
|
||||
Deno.test("[node/http] ServerResponse.call()", async () => {
|
||||
function Wrapper(this: unknown, req: IncomingMessage) {
|
||||
ServerResponse.call(this, req);
|
||||
}
|
||||
Object.setPrototypeOf(Wrapper.prototype, ServerResponse.prototype);
|
||||
|
||||
// deno-lint-ignore no-explicit-any
|
||||
const wrapper = new (Wrapper as any)(new IncomingMessage(new Socket()));
|
||||
|
||||
assert(wrapper instanceof ServerResponse);
|
||||
});
|
||||
|
||||
Deno.test("[node/http] ServerResponse _header", async () => {
|
||||
const { promise, resolve } = Promise.withResolvers<void>();
|
||||
const server = http.createServer((_req, res) => {
|
||||
assert(Object.hasOwn(res, "_header"));
|
||||
res.end();
|
||||
});
|
||||
|
||||
server.listen(async () => {
|
||||
const { port } = server.address() as { port: number };
|
||||
const res = await fetch(`http://localhost:${port}`);
|
||||
await res.body?.cancel();
|
||||
server.close(() => {
|
||||
resolve();
|
||||
});
|
||||
});
|
||||
|
||||
await promise;
|
||||
});
|
||||
|
||||
Deno.test("[node/http] ServerResponse connection", async () => {
|
||||
const { promise, resolve } = Promise.withResolvers<void>();
|
||||
const server = http.createServer((_req, res) => {
|
||||
assert(Object.hasOwn(res, "connection"));
|
||||
assert(res.connection instanceof Socket);
|
||||
res.end();
|
||||
});
|
||||
|
||||
server.listen(async () => {
|
||||
const { port } = server.address() as { port: number };
|
||||
const res = await fetch(`http://localhost:${port}`);
|
||||
await res.body?.cancel();
|
||||
server.close(() => {
|
||||
resolve();
|
||||
});
|
||||
});
|
||||
|
||||
await promise;
|
||||
});
|
||||
|
||||
Deno.test("[node/http] ServerResponse socket", async () => {
|
||||
const { promise, resolve } = Promise.withResolvers<void>();
|
||||
const server = http.createServer((_req, res) => {
|
||||
assert(Object.hasOwn(res, "socket"));
|
||||
assert(res.socket instanceof Socket);
|
||||
res.end();
|
||||
});
|
||||
|
||||
server.listen(async () => {
|
||||
const { port } = server.address() as { port: number };
|
||||
const res = await fetch(`http://localhost:${port}`);
|
||||
await res.body?.cancel();
|
||||
server.close(() => {
|
||||
resolve();
|
||||
});
|
||||
});
|
||||
|
||||
await promise;
|
||||
});
|
||||
|
||||
Loading…
Reference in New Issue
Block a user