PrismarineJS / PrismarineJS/node-minecraft-protocol

Fix serialization issue in old version for mc server test

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bug
Dominant language
JavaScript
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Avg merge
4d 8h
Merged PRs (30d)
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Description

  1. mc-server 1.12.2v
    kicks clients when invalid credentials:
    Uncaught RangeError [ERR_OUT_OF_RANGE]: The value of "offset" is out of range. It must be >= 0 and <= 45. Received -847077210
    at new NodeError (node:internal/errors:405:5)
    at boundsError (node:internal/buffer:88:9)
    at Buffer.readUInt8 (node:internal/buffer:254:5)
    at readVarInt (node_modules/protodef/src/datatypes/utils.js:68:22)
    at Splitter._transform (src/transforms/framing.js:63:30)
    at Transform._write (node_modules/readable-stream/lib/internal/streams/transform.js:153:8)

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the mc-server 1.12.2 invalid-credentials test and trace the reported failure through src/transforms/framing.js and node_modules/protodef/src/datatypes/utils.js. Determine why readVarInt receives the negative offset; done means the test no longer throws ERR_OUT_OF_RANGE when clients are kicked for invalid credentials.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
networking
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
32/100

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