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prose-im / prose-app-web

Prose Web application. XMPP client for team messaging.
https://prose.org/downloads
Mozilla Public License 2.0
19 stars 2 forks source link

Extend logout dialog to optionally delete cached data #108

Closed nesium closed 1 week ago

nesium commented 3 weeks ago

Once OMEMO support lands, messages will be end-to-end encrypted when the feature is enabled.

This means that when a user logs out from the app and we delete their locally cached encryption keys and messages that they won't be able to decrypt/read them again on the same device when they log back in.

As such a user should make the decision if they want the cached data to be deleted or not. For this purpose the logout dialog should contain a checkbox.

Here's an idea for the label and an additional description:

[ ] Delete all cached data (including messages and encryption keys)

Note: Deleting cached data will permanently remove your messages from this device. You will not be able to read them when you log back in.

Cached data is now segregated by account since https://github.com/prose-im/prose-core-client/commit/1f4c1d3219bca71f9640a044d2fe31cdc7cf418f. This also means that we could support multiple simultaneous accounts from a data storage point of view.

poVoq commented 3 weeks ago

Might be a bit confusing for non-encrypted messages that will be readable again just fine. Maybe add "decrypted" somewhere in the note?