@fastify/compress is using an unmaintained package (peek-stream), causing random issues

[debianw]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the bug has not already been reported

Fastify version

4.25.2

Plugin version

6.5.0

Node.js version

22.14

Operating system

Linux

Operating system version (i.e. 20.04, 11.3, 10)

20.04

Description

I am encountering an issue in my Fastify-based application where the @fastify/compress plugin is causing a random TypeError related to the peek-stream package. The error trace is as follows:

TypeError: Cannot read properties of null (reading 'length')
    at getStateLength (/path/to/node_modules/stream-shift/index.js:16:28)
    at shift (/path/to/node_modules/stream-shift/index.js:6:99)
    at Duplexify._forward (/path/to/node_modules/peek-stream/node_modules/duplexify/index.js:168:35)
    at Duplexify._read (/path/to/node_modules/peek-stream/node_modules/duplexify/index.js:159:8)
    at Duplexify.Readable.read (/path/to/node_modules/peek-stream/node_modules/readable-stream/lib/_stream_readable.js:443:10)
    at flow (/path/to/node_modules/peek-stream/node_modules/readable-stream/lib/_stream_readable.js:813:34)
    at ServerResponse.<anonymous> (/path/to/node_modules/peek-stream/node_modules/readable-stream/lib/_stream_readable.js:683:7)
    at ServerResponse.emit (node:events:518:28)
    at socketOnDrain (node:_http_server:785:9)
    at Socket.emit (node:events:518:28)
    at afterWrite (node:internal/streams/writable:705:12)
    at onwrite (node:internal/streams/writable:688:7)
    at WriteWrap.onWriteComplete [as oncomplete] (node:internal/stream_base_commons:105:10)

Upon investigating, I found that @fastify/compress still depends on peek-stream@1.1.3, which is an unmaintained package. This is problematic because peek-stream is no longer actively maintained and has known issues, which are leading to the error mentioned above.

I think this is due to the use of stream-shift

Take a look this issue: mafintosh/stream-shift#6

Link to code that reproduces the bug

mafintosh/stream-shift#6

Expected Behavior

No response

[mcollina]

I'm aware. This module needs some rewriting that removes all that detection logic.