Document how to export user data

[aaronraimist]

Description:

There is a command to export user data: python -m synapse.app.admin_cmd -c <config_file> export-data <user_id> but as far as I can tell it is not documented anywhere.

[aceArt-GmbH]

The data will be exported to a folder under /tmp

But as far as I can tell, only room events are exported.
To be GDPR/DSGVO complaint, I think all data needs to be exported. Like the session info (user-agent, ip, ...).

But element already allows one to export their chat and see their session info 🤔

[aceArt-GmbH]

Looking at what the this export provides, this does not seem to be GDPR or DSGVO compliant alone.
It exports only some room events, but not session information or similar

How do server administrators currently provide this data to the user?
Is there a custom script that one can use?
how does matrix.org i.e. do this?

[squahtx]

There's no one-click script that will do a GDPR export yet. I hear the way matrix.org handles GDPR requests involves some amount of manual work.

[aceArt-GmbH]

https://github.com/philipaconrad/matrix-archiver-sqlite seems to be a potential option as it also exports devices and files

[ankit-pn]

Should we need to document it? If yes , then assign this issue to me, i will do it.

[dklimpel]

Probably the easiest is if you make a pull request. Issues are rarely assigned directly.

[tjay27]

I'd like to document this, where should this be added?

[dklimpel]

Perhaps there: https://matrix-org.github.io/synapse/latest/usage/administration/admin_faq.html

Or an dedicated sub page to https://matrix-org.github.io/synapse/latest/usage/administration/index.html

[thezaidbintariq]

#14883