source: trip-planner-front/node_modules/engine.io-parser/lib/index.js@ 6a80231

Last change on this file since 6a80231 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 1.2 KB
Line 
1const encodePacket = require("./encodePacket");
2const decodePacket = require("./decodePacket");
3
4const SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text
5
6const encodePayload = (packets, callback) => {
7 // some packets may be added to the array while encoding, so the initial length must be saved
8 const length = packets.length;
9 const encodedPackets = new Array(length);
10 let count = 0;
11
12 packets.forEach((packet, i) => {
13 // force base64 encoding for binary packets
14 encodePacket(packet, false, encodedPacket => {
15 encodedPackets[i] = encodedPacket;
16 if (++count === length) {
17 callback(encodedPackets.join(SEPARATOR));
18 }
19 });
20 });
21};
22
23const decodePayload = (encodedPayload, binaryType) => {
24 const encodedPackets = encodedPayload.split(SEPARATOR);
25 const packets = [];
26 for (let i = 0; i < encodedPackets.length; i++) {
27 const decodedPacket = decodePacket(encodedPackets[i], binaryType);
28 packets.push(decodedPacket);
29 if (decodedPacket.type === "error") {
30 break;
31 }
32 }
33 return packets;
34};
35
36module.exports = {
37 protocol: 4,
38 encodePacket,
39 encodePayload,
40 decodePacket,
41 decodePayload
42};
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