OpenPrinting / OpenPrinting/cups

Support RFC 9449: OAuth 2.0 Demonstrating Proof of Possession (DPoP)

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enhancement
Dominant language
C
Stars
1.8k
Forks
331
Avg merge
9h 42m
Merged PRs (30d)
6

Description

Add support for DPoP when doing the device authorization flow:

  • Add DPoP HTTP header support
  • Detect AS metadata for DPoP and use it for the device auth flow
  • Cache DPoP information as needed

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source file, test, or entry point is named. Start by locating the C implementation of the device authorization flow and reviewing RFC 9449 alongside the authorization-server metadata handling. Done means the flow supports the DPoP HTTP header, detects and uses the advertised metadata, and caches DPoP information as needed.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
authentication, security
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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