This reverts commit 1adf6a55.

This reverts commit 6f431936, reversing
changes made to 0d775fcc.

Adds a request_token_inhibit_errors configuration flag (disabled by
default) which, if enabled, change the behaviour of all /requestToken
endpoints so that they return a 200 and a fake sid if the 3PID was/was
not found associated with an account (depending on the endpoint),
instead of an error.

Co-Authored-By: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>

Also adjust sample_config.yaml

Signed-off-by: Lars Franke <frcl@mailbox.org>

Log warning when filesystem path is used.

Signed-off-by: Martin Milata <martin@martinmilata.cz>

This reverts commit 0122ef10.

This was incorrectly merged to master.

This reverts commit 319c41f5, reversing
changes made to 229eb814.

That fallback sets the redirect URL to itself (so it can process the login
token then return gracefully to the client). This would make it pointless to
ask the user for confirmation, since the URL the confirmation page would be
showing wouldn't be the client's.

Signed-off-by: Aaron Raimist <aaron@raim.ist>

Attempts to clarify the sample config for databases, and add some stuff about
tcp keepalives to `postgres.md`.

This reverts commit 54dd2862, reversing
changes made to 6640460d.

 * Give `notif_template_html`, `notif_template_text` default values (fixes #6960)
 * Don't complain if `smtp_host` and `smtp_port` are unset, since they have sensible defaults (fixes #6961)
 * Set the example for `enable_notifs` to `True`, for consistency and because it's more useful
 * Raise errors as ConfigError rather than RuntimeError for nicer formatting

Fixes #6916.

Generally try to make this more comprehensible, and make it match the
conventions.

I've removed the documentation for all the settings which allow you to change
the names of the template files, because I can't really see why they are
useful.

Have a purge job running every 5min is probably not something we want to advise admins to do as a sort-of default.

This looks like it got half-killed back in #888.

Fixes #6567.

I want to do some key rotation, and it is silly that we don't have a way to do
this.