6.3.1 (2023-01-12)

Dependencies

• ws@~8.11.0 (no change)

6.3.0 (2023-01-10)

Bug Fixes

• fix the ES module wrapper (ed87609)
• wait for all packets to be sent before closing the WebSocket connection (a65a047)

Features

• add the "addTrailingSlash" option (#655) (d0fd474)

The trailing slash which was added by default can now be disabled:

import { Server } from "engine.io";

const server = new Server();

server.attach(httpServer, {
  addTrailingSlash: false
});

In the example above, the clients can omit the trailing slash and use /engine.io instead of /engine.io/.

Performance Improvements

• add the wsPreEncodedFrame option (5e34722)

This will be used when broadcasting packets at the Socket.IO level.

See also: https://github.com/socketio/socket.io-adapter/commit/5f7b47d40f9daabe4e3c321eda620bbadfe5ce96

Dependencies

• ws@~8.11.0 (diff)

3.6.1 (2022-11-20)

:warning: This release contains an important security fix :warning:

A malicious client could send a specially crafted HTTP request, triggering an uncaught exception and killing the Node.js process:

Error: read ECONNRESET
    at TCP.onStreamRead (internal/stream_base_commons.js:209:20)
Emitted 'error' event on Socket instance at:
    at emitErrorNT (internal/streams/destroy.js:106:8)
    at emitErrorCloseNT (internal/streams/destroy.js:74:3)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  errno: -104,
  code: 'ECONNRESET',
  syscall: 'read'
}

Please upgrade as soon as possible.

Bug Fixes

• catch errors when destroying invalid upgrades (83c4071)

Dependencies

• ws@~7.4.2 (no change)

6.2.1 (2022-11-20)

:warning: This release contains an important security fix :warning:

A malicious client could send a specially crafted HTTP request, triggering an uncaught exception and killing the Node.js process:

Error: read ECONNRESET
    at TCP.onStreamRead (internal/stream_base_commons.js:209:20)
Emitted 'error' event on Socket instance at:
    at emitErrorNT (internal/streams/destroy.js:106:8)
    at emitErrorCloseNT (internal/streams/destroy.js:74:3)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  errno: -104,
  code: 'ECONNRESET',
  syscall: 'read'
}

Please upgrade as soon as possible.

Bug Fixes

• catch errors when destroying invalid upgrades (#658) (425e833)

Dependencies

• ws@~8.2.3 (no change)

3.6.0 (2022-06-06)

Bug Fixes

• add extension in the package.json main entry (#608) (3ad0567)
• do not reset the ping timer after upgrade (1f5d469), closes /github.com/socketio/socket.io-client-swift/pull/1309#issuecomment-768475704

Features

• decrease the default value of maxHttpBufferSize (58e274c)

This change reduces the default value from 100 mb to a more sane 1 mb.

This helps protect the server against denial of service attacks by malicious clients sending huge amounts of data.

See also: https://github.com/advisories/GHSA-j4f2-536g-r55m

• increase the default value of pingTimeout (f55a79a)

6.2.0 (2022-04-17)

Features

• add the "maxPayload" field in the handshake details (088dcb4)

So that clients in HTTP long-polling can decide how many packets they have to send to stay under the maxHttpBufferSize value.

This is a backward compatible change which should not mandate a new major revision of the protocol (we stay in v4), as we only add a field in the JSON-encoded handshake data:

0{"sid":"lv_VI97HAXpY6yYWAAAC","upgrades":["websocket"],"pingInterval":25000,"pingTimeout":5000,"maxPayload":1000000}

6.1.3 (2022-02-23)

Bug Fixes

• typings: allow CorsOptionsDelegate as cors options (#641) (a463d26)
• uws: properly handle chunked content (#642) (3367440)

6.1.2 (2022-01-18)

Bug Fixes

• uws: expose additional uWebSockets.js options (#634) (49bb7cf)
• uws: fix HTTP long-polling with CORS (45112a3)
• uws: handle invalid websocket upgrades (8b4d6a8)