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Move WebSocket op codes to enum (#171)
This commit is contained in:
Dmitry Sharshakov
Ryan Dahl
parent
214fb8d2c6
commit
56579ed6ad
2 changed files with 34 additions and 41 deletions
48
ws/mod.ts
48
ws/mod.ts
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@ -5,12 +5,14 @@ import { BufReader, BufWriter } from "../io/bufio.ts";
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import { readLong, readShort, sliceLongToBytes } from "../io/ioutil.ts";
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import { Sha1 } from "./sha1.ts";
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export const OpCodeContinue = 0x0;
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export const OpCodeTextFrame = 0x1;
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export const OpCodeBinaryFrame = 0x2;
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export const OpCodeClose = 0x8;
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export const OpcodePing = 0x9;
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export const OpcodePong = 0xa;
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export enum OpCode {
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Continue = 0x0,
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TextFrame = 0x1,
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BinaryFrame = 0x2,
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Close = 0x8,
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Ping = 0x9,
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Pong = 0xa
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}
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export type WebSocketEvent =
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| string
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@ -77,9 +79,9 @@ class WebSocketImpl implements WebSocket {
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for await (const frame of receiveFrame(this.conn)) {
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unmask(frame.payload, frame.mask);
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switch (frame.opcode) {
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case OpCodeTextFrame:
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case OpCodeBinaryFrame:
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case OpCodeContinue:
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case OpCode.TextFrame:
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case OpCode.BinaryFrame:
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case OpCode.Continue:
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frames.push(frame);
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payloadsLength += frame.payload.length;
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if (frame.isLastFrame) {
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@ -89,7 +91,7 @@ class WebSocketImpl implements WebSocket {
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concat.set(frame.payload, offs);
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offs += frame.payload.length;
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}
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if (frames[0].opcode === OpCodeTextFrame) {
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if (frames[0].opcode === OpCode.TextFrame) {
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// text
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yield new Buffer(concat).toString();
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} else {
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@ -100,7 +102,7 @@ class WebSocketImpl implements WebSocket {
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payloadsLength = 0;
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}
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break;
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case OpCodeClose:
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case OpCode.Close:
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const code = (frame.payload[0] << 16) | frame.payload[1];
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const reason = new Buffer(
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frame.payload.subarray(2, frame.payload.length)
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@ -108,10 +110,10 @@ class WebSocketImpl implements WebSocket {
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this._isClosed = true;
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yield { code, reason };
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return;
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case OpcodePing:
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case OpCode.Ping:
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yield ["ping", frame.payload] as WebSocketPingEvent;
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break;
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case OpcodePong:
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case OpCode.Pong:
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yield ["pong", frame.payload] as WebSocketPongEvent;
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break;
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}
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@ -123,7 +125,7 @@ class WebSocketImpl implements WebSocket {
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throw new SocketClosedError("socket has been closed");
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}
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const opcode =
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typeof data === "string" ? OpCodeTextFrame : OpCodeBinaryFrame;
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typeof data === "string" ? OpCode.TextFrame : OpCode.BinaryFrame;
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const payload = typeof data === "string" ? this.encoder.encode(data) : data;
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const isLastFrame = true;
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await writeFrame(
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@ -142,7 +144,7 @@ class WebSocketImpl implements WebSocket {
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await writeFrame(
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{
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isLastFrame: true,
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opcode: OpCodeClose,
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opcode: OpCode.Close,
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mask: this.mask,
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payload
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},
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@ -170,7 +172,7 @@ class WebSocketImpl implements WebSocket {
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await writeFrame(
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{
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isLastFrame: true,
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opcode: OpCodeClose,
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opcode: OpCode.Close,
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mask: this.mask,
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payload
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},
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@ -205,12 +207,12 @@ export async function* receiveFrame(
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const frame = await readFrame(reader);
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const { opcode, payload } = frame;
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switch (opcode) {
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case OpCodeTextFrame:
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case OpCodeBinaryFrame:
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case OpCodeContinue:
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case OpCode.TextFrame:
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case OpCode.BinaryFrame:
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case OpCode.Continue:
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yield frame;
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break;
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case OpCodeClose:
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case OpCode.Close:
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await writeFrame(
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{
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opcode,
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@ -223,18 +225,18 @@ export async function* receiveFrame(
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yield frame;
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receiving = false;
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break;
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case OpcodePing:
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case OpCode.Ping:
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await writeFrame(
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{
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payload,
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isLastFrame,
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opcode: OpcodePong
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opcode: OpCode.Pong
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},
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conn
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);
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yield frame;
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break;
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case OpcodePong:
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case OpCode.Pong:
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yield frame;
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break;
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}
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27
ws/test.ts
27
ws/test.ts
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@ -2,16 +2,7 @@
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import { Buffer } from "deno";
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import { BufReader } from "../io/bufio.ts";
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import { test, assert, assertEqual } from "../testing/mod.ts";
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import {
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createSecAccept,
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OpCodeBinaryFrame,
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OpCodeContinue,
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OpcodePing,
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OpcodePong,
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OpCodeTextFrame,
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readFrame,
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unmask
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} from "./mod.ts";
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import { createSecAccept, OpCode, readFrame, unmask } from "./mod.ts";
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import { serve } from "../http/http.ts";
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test(async function testReadUnmaskedTextFrame() {
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@ -20,7 +11,7 @@ test(async function testReadUnmaskedTextFrame() {
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new Buffer(new Uint8Array([0x81, 0x05, 0x48, 0x65, 0x6c, 0x6c, 0x6f]))
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);
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const frame = await readFrame(buf);
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assertEqual(frame.opcode, OpCodeTextFrame);
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assertEqual(frame.opcode, OpCode.TextFrame);
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assertEqual(frame.mask, undefined);
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assertEqual(new Buffer(frame.payload).toString(), "Hello");
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assertEqual(frame.isLastFrame, true);
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@ -47,7 +38,7 @@ test(async function testReadMakedTextFrame() {
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);
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const frame = await readFrame(buf);
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console.dir(frame);
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assertEqual(frame.opcode, OpCodeTextFrame);
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assertEqual(frame.opcode, OpCode.TextFrame);
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unmask(frame.payload, frame.mask);
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assertEqual(new Buffer(frame.payload).toString(), "Hello");
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assertEqual(frame.isLastFrame, true);
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@ -63,12 +54,12 @@ test(async function testReadUnmaskedSplittedTextFrames() {
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const [f1, f2] = await Promise.all([readFrame(buf1), readFrame(buf2)]);
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assertEqual(f1.isLastFrame, false);
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assertEqual(f1.mask, undefined);
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assertEqual(f1.opcode, OpCodeTextFrame);
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assertEqual(f1.opcode, OpCode.TextFrame);
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assertEqual(new Buffer(f1.payload).toString(), "Hel");
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assertEqual(f2.isLastFrame, true);
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assertEqual(f2.mask, undefined);
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assertEqual(f2.opcode, OpCodeContinue);
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assertEqual(f2.opcode, OpCode.Continue);
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assertEqual(new Buffer(f2.payload).toString(), "lo");
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});
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@ -78,7 +69,7 @@ test(async function testReadUnmaksedPingPongFrame() {
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new Buffer(new Uint8Array([0x89, 0x05, 0x48, 0x65, 0x6c, 0x6c, 0x6f]))
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);
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const ping = await readFrame(buf);
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assertEqual(ping.opcode, OpcodePing);
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assertEqual(ping.opcode, OpCode.Ping);
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assertEqual(new Buffer(ping.payload).toString(), "Hello");
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const buf2 = new BufReader(
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@ -99,7 +90,7 @@ test(async function testReadUnmaksedPingPongFrame() {
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)
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);
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const pong = await readFrame(buf2);
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assertEqual(pong.opcode, OpcodePong);
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assertEqual(pong.opcode, OpCode.Pong);
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assert(pong.mask !== undefined);
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unmask(pong.payload, pong.mask);
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assertEqual(new Buffer(pong.payload).toString(), "Hello");
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@ -112,7 +103,7 @@ test(async function testReadUnmaksedBigBinaryFrame() {
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}
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const buf = new BufReader(new Buffer(new Uint8Array(a)));
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const bin = await readFrame(buf);
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assertEqual(bin.opcode, OpCodeBinaryFrame);
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assertEqual(bin.opcode, OpCode.BinaryFrame);
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assertEqual(bin.isLastFrame, true);
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assertEqual(bin.mask, undefined);
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assertEqual(bin.payload.length, 256);
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@ -125,7 +116,7 @@ test(async function testReadUnmaskedBigBigBinaryFrame() {
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}
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const buf = new BufReader(new Buffer(new Uint8Array(a)));
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const bin = await readFrame(buf);
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assertEqual(bin.opcode, OpCodeBinaryFrame);
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assertEqual(bin.opcode, OpCode.BinaryFrame);
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assertEqual(bin.isLastFrame, true);
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assertEqual(bin.mask, undefined);
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assertEqual(bin.payload.length, 0xffff + 1);
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