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authorAndrew Morgan <1342360+anoadragon453@users.noreply.github.com>2020-09-08 16:03:09 +0100
committerGitHub <noreply@github.com>2020-09-08 16:03:09 +0100
commit094896a69d44a69946df099da59adec0b52da0ac (patch)
treea48d0b0a27561276af44301b0bcada92c9ac4edd /synapse/handlers
parentClean up types for PaginationConfig (#8250) (diff)
downloadsynapse-094896a69d44a69946df099da59adec0b52da0ac.tar.xz
Add a config option for validating 'next_link' parameters against a domain whitelist (#8275)
This is a config option ported over from DINUM's Sydent: https://github.com/matrix-org/sydent/pull/285

They've switched to validating 3PIDs via Synapse rather than Sydent, and would like to retain this functionality.

This original purpose for this change is phishing prevention. This solution could also potentially be replaced by a similar one to https://github.com/matrix-org/synapse/pull/8004, but across all `*/submit_token` endpoint.

This option may still be useful to enterprise even with that safeguard in place though, if they want to be absolutely sure that their employees don't follow links to other domains.
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