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Support for MSC3906 v2#3193

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hughns wants to merge 12 commits intodevelopfrom
hughns/msc3906-v2
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Support for MSC3906 v2#3193
hughns wants to merge 12 commits intodevelopfrom
hughns/msc3906-v2

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@hughns hughns commented Mar 6, 2023 •
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This PR adds support for v2 of MSC3906 which is used for Sign in with QR.

Both v1 (default) and v2 are supported so compatibility is maintained.

Signed-off-by: Hugh Nimmo-Smith [email protected]

Checklist

  • Tests written for new code (and old code if feasible)
  • Linter and other CI checks pass
  • Sign-off given on the changes (see CONTRIBUTING.md)

Notes: Updates to protocol used for Sign in with QR code

Here's what your changelog entry will look like:

✨ Features

  • Updates to protocol used for Sign in with QR code (#3193). Contributed by @hughns.

@hughns hughns mentioned this pull request Mar 6, 2023
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@hughns hughns force-pushed the hughns/msc3906-v2 branch from 3639083 to b1d7788 Compare March 9, 2023 20:22
@hughns hughns force-pushed the hughns/msc3906-v2 branch from a8cc3a1 to 59ee0a2 Compare March 9, 2023 21:57
@hughns hughns force-pushed the hughns/msc3906-v2 branch from 59ee0a2 to 7bb10a1 Compare March 9, 2023 22:09
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hughns commented Mar 9, 2023

n.b. the code smells reported by SonarCloud are for deliberate use of deprecated MSC3906 v1 types

@hughns hughns marked this pull request as ready for review March 9, 2023 22:16
@hughns hughns requested a review from a team as a code owner March 9, 2023 22:16
@hughns hughns requested review from justjanne and richvdh March 9, 2023 22:16
@hughns hughns marked this pull request as draft March 9, 2023 22:19
@hughns hughns marked this pull request as ready for review March 9, 2023 22:32
@hughns hughns force-pushed the hughns/msc3906-v2 branch from 24a045d to b6699ba Compare March 9, 2023 22:34
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richvdh commented Mar 13, 2023

for links: previous impl was #2747

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Afraid I have to step away for a meeting, but I've left a few initial thoughts/stupid questions.

As a general theme: I would like to see more doc-comments explaining what things do/what they are for, even if it seems obvious. Writing out in words how an API is used/what it does can be really useful in terms of helping people understand, and maintaining a clean API.

src/rendezvous/MSC3906Rendezvous.ts Outdated
* @param channel - The secure channel used for communication
* @param client - The Matrix client in used on the device already logged in
* @param onFailure - Callback for when the rendezvous fails
* @param flow - The flow to use. Defaults to MSC3906 v1 for backwards compatibility.
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please could we have some more words explaining what a "flow" means and how I, as a user of this API, should pick one?

src/rendezvous/channels/MSC3903ECDHv2RendezvousChannel.ts
Comment on lines +102 to 103
flow,
intent,
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While trying to get a handle on how these pieces fit together, I find it a bit odd that this is implementing a "MSC3903 rendezvous channel", but there is no mention in MSC3903 of this bit. If this is specific to MSC3906, shouldn't it be in MSC3906Rendezvous rather than here?

src/rendezvous/MSC3906Rendezvous.ts
Comment on lines +136 to 140
/**
*
* @returns the checksum of the secure channel if the rendezvous set up was successful, otherwise undefined
*/
public async startAfterShowingCode(): Promise<string | undefined> {
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Particularly given this is a public function, please could it have a better doc-comment? What does it actually do, beyond returning a success flag?

@hughns hughns force-pushed the hughns/msc3906-v2 branch from e4559eb to c4ea55b Compare April 5, 2023 17:20
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justjanne commented May 8, 2023

Please make sure to rebase this PR so it can be compared against the current codebase cleanly

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richvdh commented Dec 5, 2023

@hughns what's the state of play with this? Can it be closed for now?

@hughns hughns marked this pull request as draft December 11, 2023 10:23
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hughns commented Dec 11, 2023

Closing this in preference to moving directly to supporting Sign in with QR with OIDC.

@hughns hughns closed this Dec 11, 2023
@hughns hughns deleted the hughns/msc3906-v2 branch August 20, 2025 12:28
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