fix(deps): update dependency socket.io to v2.5.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
socket.io (source)	2.3.0 → 2.5.1

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Release Notes

socketio/socket.io (socket.io)

v2.5.1

Compare Source

Bug Fixes

• add a noop handler for the error event (d30630b)

Links:

• Diff: socketio/socket.io@2.5.0...2.5.1
• Client release: -
• engine.io version: ~3.6.0 (no change)
• ws version: ~7.5.10

v2.5.0

Compare Source

⚠️ WARNING ⚠️

The default value of the maxHttpBufferSize option has been decreased from 100 MB to 1 MB, in order to prevent attacks by denial of service.

Security advisory: GHSA-j4f2-536g-r55m

Bug Fixes

• fix race condition in dynamic namespaces (05e1278)
• ignore packet received after disconnection (22d4bdf)
• only set 'connected' to true after middleware execution (226cc16)
• prevent the socket from joining a room after disconnection (f223178)

Links:

• Diff: socketio/socket.io@2.4.1...2.5.0
• Client release: 2.5.0
• engine.io version: ~3.6.0 (diff)
• ws version: ~7.4.2

v2.4.1

Compare Source

This release reverts the breaking change introduced in 2.4.0 (f78a575).

If you are using Socket.IO v2, you should explicitly allow/disallow cross-origin requests:

• without CORS (server and client are served from the same domain):

const io = require("socket.io")(httpServer, {
  allowRequest: (req, callback) => {
    callback(null, req.headers.origin === undefined); // cross-origin requests will not be allowed
  }
});

• with CORS (server and client are served from distinct domains):

io.origins(["http://localhost:3000"]); // for local development
io.origins(["https://example.com"]);

In any case, please consider upgrading to Socket.IO v3, where this security issue is now fixed (CORS is disabled by default).

Reverts

• fix(security): do not allow all origins by default (a169050)

Links:

• Diff: socketio/socket.io@2.4.0...2.4.1
• Client release: -
• engine.io version: ~3.5.0
• ws version: ~7.4.2

v2.4.0

Compare Source

Related blog post: https://socket.io/blog/socket-io-2-4-0/

Features (from Engine.IO)

• add support for all cookie options (19cc582)
• disable perMessageDeflate by default (5ad2736)

Bug Fixes

• security: do not allow all origins by default (f78a575)
• properly overwrite the query sent in the handshake (d33a619)

⚠️ BREAKING CHANGE ⚠️

Previously, CORS was enabled by default, which meant that a Socket.IO server sent the necessary CORS headers (Access-Control-Allow-xxx) to any domain. This will not be the case anymore, and you now have to explicitly enable it.

Please note that you are not impacted if:

• you are using Socket.IO v2 and the origins option to restrict the list of allowed domains
• you are using Socket.IO v3 (disabled by default)

This commit also removes the support for '*' matchers and protocol-less URL:

io.origins('https://example.com:443'); => io.origins(['https://example.com']);
io.origins('localhost:3000');          => io.origins(['http://localhost:3000']);
io.origins('http://localhost:*');      => io.origins(['http://localhost:3000']);
io.origins('*:3000');                  => io.origins(['http://localhost:3000']);

To restore the previous behavior (please use with caution):

io.origins((_, callback) => {
  callback(null, true);
});

See also:

• https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS
• https://socket.io/docs/v3/handling-cors/
• https://socket.io/docs/v3/migrating-from-2-x-to-3-0/#CORS-handling

Thanks a lot to @​ni8walk3r for the security report.

Links:

• Milestone: 2.4.0
• Diff: socketio/socket.io@2.3.0...2.4.0
• Client release: 2.4.0
• engine.io version: ~3.5.0
• ws version: ~7.4.2

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.85%. Comparing base (53234ab) to head (25f5056).

❗ Current head 25f5056 differs from pull request most recent head 4e75e8c

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Additional details and impacted files

@@           Coverage Diff            @@
##           develop      #67   +/-   ##
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  Coverage    93.85%   93.85%           
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  Files           28       28           
  Lines          863      863           
  Branches       125      125           
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  Hits           810      810           
  Misses          52       52           
  Partials         1        1