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MSC1954: Proposal to remove prev_content from the essential keys list #1954

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merged 3 commits into from
Apr 21, 2019
Merged

MSC1954: Proposal to remove prev_content from the essential keys list #1954

merged 3 commits into from
Apr 21, 2019

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neilisfragile
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@neilisfragile neilisfragile added proposal A matrix spec change proposal proposal-in-review labels Apr 5, 2019
@turt2live turt2live changed the title Proposal to remove prev_content from the essential keys list MSC1954: Proposal to remove prev_content from the essential keys list Apr 5, 2019
@neilisfragile neilisfragile mentioned this pull request Apr 5, 2019
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turt2live
turt2live approved these changes Apr 5, 2019
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seems like the right approach to me

KitsuneRal
KitsuneRal requested changes Apr 6, 2019
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proposals/1954-remove-prev_event-from-essential-keys-list.md Show resolved Hide resolved
proposals/1954-remove-prev_event-from-essential-keys-list.md Outdated
## Security considerations

I am unaware of any security issues related to this proposal, but can certainly
see issues with a precedent that the federation deviates from the spec.
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Actually, keeping prev_content as the current text of the spec says carries a security implication: if somebody stuffed, e.g., illegal or abusive data into a state event and then overwritten the same state event once, those data would be carefully preserved and disseminated via prev_content even after redaction (if implemented as-per-spec). Therefore prev_content is not just inessential, it's harmful if kept by redaction. Not sure if we should add it specifically here but it's probably worth stating at least.

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in an attempt to help @neilisfragile get this through:

@mscbot fcp merge

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mscbot commented Apr 9, 2019 •
edited by erikjohnston
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Team member @turt2live has proposed to merge this. The next step is review by the rest of the tagged people:

No concerns currently listed.

Once a majority of reviewers approve (and none object), this will enter its final comment period. If you spot a major issue that hasn't been raised at any point in this process, please speak up!

See this document for info about what commands tagged team members can give me.

@mscbot mscbot added proposed-final-comment-period Currently awaiting signoff of a majority of team members in order to enter the final comment period. disposition-merge labels Apr 9, 2019
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dbkr commented Apr 9, 2019

Seems entirely reasonable

KitsuneRal
KitsuneRal reviewed Apr 9, 2019
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proposals/1954-remove-prev_event-from-essential-keys-list.md Outdated
the server(s). Client authors will have to update their code to drop
```prev_content``` - however, given that prev_content should not be used in
important calculations and/or visualisations, this ought to be relatively
uninvaisive change.
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Suggested change
uninvaisive change.
uninvasive change.

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noninvasive

KitsuneRal
KitsuneRal approved these changes Apr 9, 2019
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Approve the contents, modulo the typo

anoadragon453
anoadragon453 reviewed Apr 9, 2019
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proposals/1954-remove-prev_event-from-essential-keys-list.md Outdated
## Potential issues

It is theoretically possible that a closed federation could exist whose servers
do follow the spec as is. This MSC would render those servers uncompliant with
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Suggested change
do follow the spec as is. This MSC would render those servers uncompliant with
do follow the spec as is. This MSC would render those servers incompliant with

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Makes sense to me.

@mscbot mscbot added final-comment-period This MSC has entered a final comment period in interest to approval, postpone, or delete in 5 days. and removed proposed-final-comment-period Currently awaiting signoff of a majority of team members in order to enter the final comment period. labels Apr 15, 2019
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mscbot commented Apr 15, 2019

🔔 This is now entering its final comment period, as per the review above. 🔔

@mscbot mscbot added finished-final-comment-period and removed final-comment-period This MSC has entered a final comment period in interest to approval, postpone, or delete in 5 days. labels Apr 21, 2019
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mscbot commented Apr 21, 2019

The final comment period, with a disposition to merge, as per the review above, is now complete.

@anoadragon453 anoadragon453 merged commit 5792e5f into master Apr 21, 2019
@KitsuneRal KitsuneRal mentioned this pull request Apr 22, 2019
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@turt2live turt2live added this to To add to spec in Matrix 1.0 workflow via automation May 20, 2019
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This doesn't need an implementation because the implementation is already correct. The spec is wrong in this scenario. Flagging it as spec-pr-missing and spec-bug due to the nature of the problem.

@turt2live turt2live added spec-bug Something which is in the spec, but is wrong spec-pr-missing Proposal has been implemented and is being used in the wild but hasn't yet been added to the spec and removed proposal-in-review labels May 20, 2019
@turt2live turt2live moved this from To add to spec to In progress in Matrix 1.0 workflow May 24, 2019
@turt2live turt2live self-assigned this May 24, 2019
turt2live added a commit that referenced this pull request May 24, 2019
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Remove prev_content from the redaction essential keys list
3c38956 
As per [MSC1954](#1954)

No known changes since the proposal was accepted.
@turt2live turt2live mentioned this pull request May 24, 2019
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Spec PR: #2016

@turt2live turt2live added spec-pr-in-review A proposal which has been PR'd against the spec and is in review merged A proposal whose PR has merged into the spec! and removed spec-pr-missing Proposal has been implemented and is being used in the wild but hasn't yet been added to the spec spec-pr-in-review A proposal which has been PR'd against the spec and is in review labels May 24, 2019
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merged 🎉

@turt2live turt2live moved this from In progress to Done in Matrix 1.0 workflow May 25, 2019
@aaronraimist aaronraimist mentioned this pull request Jan 12, 2020
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@turt2live turt2live added the kind:maintenance MSC which clarifies/updates existing spec label Apr 20, 2020
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@anoadragon453 anoadragon453 anoadragon453 left review comments

@turt2live turt2live turt2live approved these changes

@KitsuneRal KitsuneRal KitsuneRal approved these changes

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disposition-merge kind:maintenance MSC which clarifies/updates existing spec merged A proposal whose PR has merged into the spec! proposal A matrix spec change proposal spec-bug Something which is in the spec, but is wrong
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@neilisfragile @turt2live @mscbot @dbkr @anoadragon453 @KitsuneRal