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Permalinks cannot be routed by room ID, and aliases are not permanent. #355

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turt2live opened this issue Aug 28, 2018 · 4 comments
Open

Permalinks cannot be routed by room ID, and aliases are not permanent. #355

turt2live opened this issue Aug 28, 2018 · 4 comments
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A-Client-Server Issues affecting the CS API feature Suggestion for a significant extension which needs considerable consideration

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@turt2live
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turt2live commented Aug 28, 2018 •
edited

Original bug: element-hq/element-web#2925

Room IDs have a server component for namespacing, but there's no guarantee that the server is still a participant in the room. This makes room IDs canonical for the room, but without a routing component they are impossible to resolve unless you're already part of the room. Aliases meanwhile do have routing through the included server name (leading to further queries about resident servers), but can change which room ID they point to easily.

We patched over the routability issues for room IDs by adding ?via= parameters to permalinks, though this still has a chance to include servers which are no longer present when the link is clicked. Ideally, the room ID itself is routable to a resident server able to join the room.

There are no currently known solutions to this - MSCs are required.
@turt2live turt2live added the feature Suggestion for a significant extension which needs considerable consideration label Aug 28, 2018
@turt2live turt2live added the A-Client-Server Issues affecting the CS API label Sep 6, 2018
@turt2live turt2live mentioned this issue Apr 5, 2019
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@richvdh richvdh transferred this issue from matrix-org/matrix-spec-proposals Mar 1, 2022
@richvdh
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richvdh commented Jul 22, 2024

It seems like element-hq/element-web#2925 has been closed, so we can probably close this one too?

@richvdh richvdh closed this as completed Jul 22, 2024
@turt2live
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?via= params are a bit of a hack and not permanently routable.

@turt2live turt2live reopened this Jul 23, 2024
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richvdh commented Jul 23, 2024

Ok, can you update the description to be clearer about what the actual problem is, rather than just referring to a closed issue?

@turt2live
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done

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