import { BufReader, BufWriter } from "../io/bufio.ts";import { assert, assertEquals, assertThrowsAsync } from "../testing/asserts.ts";const { test } = Deno;import { TextProtoReader } from "../textproto/mod.ts";import * as bytes from "../bytes/mod.ts";import { acceptable, connectWebSocket, createSecAccept, createSecKey, handshake, OpCode, readFrame, unmask, writeFrame, createWebSocket,} from "./mod.ts";import { encode, decode } from "../encoding/utf8.ts";import Writer = Deno.Writer;import Reader = Deno.Reader;import Conn = Deno.Conn;import Buffer = Deno.Buffer;import { delay } from "../util/async.ts";
test("[ws] read unmasked text frame", async () => { const buf = new BufReader( new Buffer(new Uint8Array([0x81, 0x05, 0x48, 0x65, 0x6c, 0x6c, 0x6f])) ); const frame = await readFrame(buf); assertEquals(frame.opcode, OpCode.TextFrame); assertEquals(frame.mask, undefined); assertEquals(new Buffer(frame.payload).toString(), "Hello"); assertEquals(frame.isLastFrame, true);});
test("[ws] read masked text frame", async () => { const buf = new BufReader( new Buffer( new Uint8Array([ 0x81, 0x85, 0x37, 0xfa, 0x21, 0x3d, 0x7f, 0x9f, 0x4d, 0x51, 0x58, ]) ) ); const frame = await readFrame(buf); assertEquals(frame.opcode, OpCode.TextFrame); unmask(frame.payload, frame.mask); assertEquals(new Buffer(frame.payload).toString(), "Hello"); assertEquals(frame.isLastFrame, true);});
test("[ws] read unmasked split text frames", async () => { const buf1 = new BufReader( new Buffer(new Uint8Array([0x01, 0x03, 0x48, 0x65, 0x6c])) ); const buf2 = new BufReader( new Buffer(new Uint8Array([0x80, 0x02, 0x6c, 0x6f])) ); const [f1, f2] = await Promise.all([readFrame(buf1), readFrame(buf2)]); assertEquals(f1.isLastFrame, false); assertEquals(f1.mask, undefined); assertEquals(f1.opcode, OpCode.TextFrame); assertEquals(new Buffer(f1.payload).toString(), "Hel");
assertEquals(f2.isLastFrame, true); assertEquals(f2.mask, undefined); assertEquals(f2.opcode, OpCode.Continue); assertEquals(new Buffer(f2.payload).toString(), "lo");});
test("[ws] read unmasked ping / pong frame", async () => { const buf = new BufReader( new Buffer(new Uint8Array([0x89, 0x05, 0x48, 0x65, 0x6c, 0x6c, 0x6f])) ); const ping = await readFrame(buf); assertEquals(ping.opcode, OpCode.Ping); assertEquals(new Buffer(ping.payload).toString(), "Hello"); const pongFrame= [0x8a, 0x85, 0x37, 0xfa, 0x21, 0x3d, 0x7f, 0x9f, 0x4d, 0x51, 0x58] const buf2 = new BufReader(new Buffer(new Uint8Array(pongFrame))); const pong = await readFrame(buf2); assertEquals(pong.opcode, OpCode.Pong); assert(pong.mask !== undefined); unmask(pong.payload, pong.mask); assertEquals(new Buffer(pong.payload).toString(), "Hello");});
test("[ws] read unmasked big binary frame", async () => { const payloadLength = 0x100; const a = [0x82, 0x7e, 0x01, 0x00]; for (let i = 0; i < payloadLength; i++) { a.push(i); } const buf = new BufReader(new Buffer(new Uint8Array(a))); const bin = await readFrame(buf); assertEquals(bin.opcode, OpCode.BinaryFrame); assertEquals(bin.isLastFrame, true); assertEquals(bin.mask, undefined); assertEquals(bin.payload.length, payloadLength);});
test("[ws] read unmasked bigger binary frame", async () => { const payloadLength = 0x10000; const a = [0x82, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00]; for (let i = 0; i < payloadLength; i++) { a.push(i); } const buf = new BufReader(new Buffer(new Uint8Array(a))); const bin = await readFrame(buf); assertEquals(bin.opcode, OpCode.BinaryFrame); assertEquals(bin.isLastFrame, true); assertEquals(bin.mask, undefined); assertEquals(bin.payload.length, payloadLength);});
test("[ws] createSecAccept", () => { const nonce = "dGhlIHNhbXBsZSBub25jZQ=="; const d = createSecAccept(nonce); assertEquals(d, "s3pPLMBiTxaQ9kYGzzhZRbK+xOo=");});
test("[ws] acceptable", () => { const ret = acceptable({ headers: new Headers({ upgrade: "websocket", "sec-websocket-key": "aaa", }), }); assertEquals(ret, true);
assert( acceptable({ headers: new Headers([ ["connection", "Upgrade"], ["host", "127.0.0.1:9229"], [ "sec-websocket-extensions", "permessage-deflate; client_max_window_bits", ], ["sec-websocket-key", "dGhlIHNhbXBsZSBub25jZQ=="], ["sec-websocket-version", "13"], ["upgrade", "WebSocket"], ]), }) );});
test("[ws] acceptable should return false when headers invalid", () => { assertEquals( acceptable({ headers: new Headers({ "sec-websocket-key": "aaa" }), }), false ); assertEquals( acceptable({ headers: new Headers({ upgrade: "websocket" }), }), false ); assertEquals( acceptable({ headers: new Headers({ upgrade: "invalid", "sec-websocket-key": "aaa" }), }), false ); assertEquals( acceptable({ headers: new Headers({ upgrade: "websocket", "sec-websocket-ky": "" }), }), false );});
test("[ws] connectWebSocket should throw invalid scheme of url", async (): Promise< void> => { await assertThrowsAsync( async (): Promise<void> => { await connectWebSocket("file://hoge/hoge"); } );});
test("[ws] write and read masked frame", async () => { const mask = new Uint8Array([0, 1, 2, 3]); const msg = "hello"; const buf = new Buffer(); const r = new BufReader(buf); await writeFrame( { isLastFrame: true, mask, opcode: OpCode.TextFrame, payload: encode(msg), }, buf ); const frame = await readFrame(r); assertEquals(frame.opcode, OpCode.TextFrame); assertEquals(frame.isLastFrame, true); assertEquals(frame.mask, mask); unmask(frame.payload, frame.mask); assertEquals(frame.payload, encode(msg));});
test("[ws] handshake should not send search when it's empty", async () => { const writer = new Buffer(); const reader = new Buffer(encode("HTTP/1.1 400\r\n"));
await assertThrowsAsync( async (): Promise<void> => { await handshake( new URL("ws://example.com"), new Headers(), new BufReader(reader), new BufWriter(writer) ); } );
const tpReader = new TextProtoReader(new BufReader(writer)); const statusLine = await tpReader.readLine();
assertEquals(statusLine, "GET / HTTP/1.1");});
test("[ws] handshake should send search correctly", async function wsHandshakeWithSearch(): Promise< void> { const writer = new Buffer(); const reader = new Buffer(encode("HTTP/1.1 400\r\n"));
await assertThrowsAsync( async (): Promise<void> => { await handshake( new URL("ws://example.com?a=1"), new Headers(), new BufReader(reader), new BufWriter(writer) ); } );
const tpReader = new TextProtoReader(new BufReader(writer)); const statusLine = await tpReader.readLine();
assertEquals(statusLine, "GET /?a=1 HTTP/1.1");});
test("[ws] ws.close() should use 1000 as close code", async () => { const buf = new Buffer(); const bufr = new BufReader(buf); const conn = dummyConn(buf, buf); const ws = createWebSocket({ conn }); await ws.close(); const frame = await readFrame(bufr); assertEquals(frame.opcode, OpCode.Close); const code = (frame.payload[0] << 8) | frame.payload[1]; assertEquals(code, 1000);});
function dummyConn(r: Reader, w: Writer): Conn { return { rid: -1, closeRead: (): void => {}, closeWrite: (): void => {}, read: (x): Promise<number | Deno.EOF> => r.read(x), write: (x): Promise<number> => w.write(x), close: (): void => {}, localAddr: { transport: "tcp", hostname: "0.0.0.0", port: 0 }, remoteAddr: { transport: "tcp", hostname: "0.0.0.0", port: 0 }, };}
function delayedWriter(ms: number, dest: Writer): Writer { return { write(p: Uint8Array): Promise<number> { return new Promise<number>((resolve) => { setTimeout(async (): Promise<void> => { resolve(await dest.write(p)); }, ms); }); }, };}test({ name: "[ws] WebSocket.send(), WebSocket.ping() should be exclusive", fn: async (): Promise<void> => { const buf = new Buffer(); const conn = dummyConn(new Buffer(), delayedWriter(1, buf)); const sock = createWebSocket({ conn }); await Promise.all([ sock.send("first"), sock.send("second"), sock.ping(), sock.send(new Uint8Array([3])), ]); const bufr = new BufReader(buf); const first = await readFrame(bufr); const second = await readFrame(bufr); const ping = await readFrame(bufr); const third = await readFrame(bufr); assertEquals(first.opcode, OpCode.TextFrame); assertEquals(decode(first.payload), "first"); assertEquals(first.opcode, OpCode.TextFrame); assertEquals(decode(second.payload), "second"); assertEquals(ping.opcode, OpCode.Ping); assertEquals(third.opcode, OpCode.BinaryFrame); assertEquals(bytes.equal(third.payload, new Uint8Array([3])), true); },});
test("[ws] createSecKeyHasCorrectLength", () => { const secKey = createSecKey(); assertEquals(atob(secKey).length, 16);});
test("[ws] WebSocket should throw `Deno.errors.ConnectionReset` when peer closed connection without close frame", async () => { const buf = new Buffer(); const eofReader: Deno.Reader = { read(_: Uint8Array): Promise<number | Deno.EOF> { return Promise.resolve(Deno.EOF); }, }; const conn = dummyConn(eofReader, buf); const sock = createWebSocket({ conn }); sock.closeForce(); await assertThrowsAsync( () => sock.send("hello"), Deno.errors.ConnectionReset ); await assertThrowsAsync(() => sock.ping(), Deno.errors.ConnectionReset); await assertThrowsAsync(() => sock.close(0), Deno.errors.ConnectionReset);});
test("[ws] WebSocket shouldn't throw `Deno.errors.UnexpectedEof` on recive()", async () => { const buf = new Buffer(); const eofReader: Deno.Reader = { read(_: Uint8Array): Promise<number | Deno.EOF> { return Promise.resolve(Deno.EOF); }, }; const conn = dummyConn(eofReader, buf); const sock = createWebSocket({ conn }); const it = sock.receive(); const { value, done } = await it.next(); assertEquals(value, undefined); assertEquals(done, true);});
test({ name: "[ws] WebSocket should reject sending promise when connection reset forcely", fn: async () => { const buf = new Buffer(); let timer: number | undefined; const lazyWriter: Deno.Writer = { write(_: Uint8Array): Promise<number> { return new Promise((resolve) => { timer = setTimeout(() => resolve(0), 1000); }); }, }; const conn = dummyConn(buf, lazyWriter); const sock = createWebSocket({ conn }); const onError = (e: unknown): unknown => e; const p = Promise.all([ sock.send("hello").catch(onError), sock.send(new Uint8Array([1, 2])).catch(onError), sock.ping().catch(onError), ]); sock.closeForce(); assertEquals(sock.isClosed, true); const [a, b, c] = await p; assert(a instanceof Deno.errors.ConnectionReset); assert(b instanceof Deno.errors.ConnectionReset); assert(c instanceof Deno.errors.ConnectionReset); clearTimeout(timer); await delay(10); },});