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[keyserver] Strip `member.permissions` for `FUTURE_CODE_VERSION` clients
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Authored by atul on Jul 16 2024, 2:45 PM.
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Details

Summary

Add stripMemberPermissions option to rawThreadInfoFromServerThreadInfo to strip member permissions for new clients.


Depends on D12763

Test Plan

Did some basic testing where I hardcoded stripMemberPermissions being passed to rawThreadInfoFromServerThreadInfo and set breakpoints to check output.

Will do additional testing with validators + after getting basic client migration working.

With stripMemberPermissions=false:

9dfcd0.png (1×2 px, 558 KB)

(can observe that each of the two members have permissions field set to string)

With stripMemberPermissions=true:

aac4a5.png (1×2 px, 411 KB)

Diff Detail

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july9 (branched from master)
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Event Timeline

atul published this revision for review.Jul 16 2024, 2:49 PM
atul added inline comments.
lib/shared/thread-utils.js
897–906

Wanted to specify exact type of object before "crossing boundary" and making call to stripMemberPermissionsFromRawThreadInfo. The output of rawThreadInfoFromServerThreadInfo is "enforced" at runtime via validators which makes this a "safe" any-cast IMO.

ashoat requested changes to this revision.Jul 17 2024, 12:29 PM
ashoat added inline comments.
keyserver/src/fetchers/thread-fetchers.js
311–314

Isn't this backwards? Don't we want to strip member permissions for newer clients, not for older clients?

lib/shared/thread-utils.js
875

It looks like this will be true for modern clients:

const specialRoleFieldSupported = hasMinCodeVersion(viewer.platformDetails, {
  native: 336,
  web: 79,
});

Doesn't that mean we'll never strip the member permissions?

This revision now requires changes to proceed.Jul 17 2024, 12:29 PM

rebase after addressing feedback in previous diffs in stack, still need to fix this diff up

atul planned changes to this revision.Jul 17 2024, 2:25 PM

Lot of things that need to be fixed up here.

keyserver/src/fetchers/thread-fetchers.js
311–314

Yeah, will flip.

lib/shared/thread-utils.js
875

Yeah this came up pretty immediately during testing, will update

fix logic, still need to do more testing

Updated test plan after some more testing.

ashoat added inline comments.
lib/shared/thread-utils.js
869 ↗(On Diff #42418)

Is the "deprecated" name really appropriate here? It seems like it's deprecated on the client, but will always be necessary in keyserver to go from a ServerThreadInfo to a type that works on clients (minimally-encoded)

This revision is now accepted and ready to land.Jul 18 2024, 10:29 AM
lib/shared/thread-utils.js
869 ↗(On Diff #42418)

That's fair, wanted to avoid "Legacy" but something like minimallyEncodeRawThreadInfoSansMemberPermissions or something might work.

869 ↗(On Diff #42418)

*minimallyEncodeRawThreadInfoWithMemberPermissions

lib/shared/thread-utils.js
869 ↗(On Diff #42418)

Doing this in a followup diff rn to avoid cluttering this one up with rename

This revision was landed with ongoing or failed builds.Jul 18 2024, 2:45 PM
This revision was automatically updated to reflect the committed changes.

Here's the followup diff I promised: D12799