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Prepare for authenticated media freeze #17433

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merged 8 commits into from
Jul 22, 2024
Merged

Prepare for authenticated media freeze #17433

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99840b3
add column `authenticated` to tables `local_media_repository` and `re…
H-Shay Jul 10, 2024
7569c77
add config options to set and enforce authenticated media
H-Shay Jul 10, 2024
f5ec081
get and set authenticated status when storing/fetching local/remote m…
H-Shay Jul 10, 2024
87ae2c2
disallow authenticated media over unauthenticated endpoints if config…
H-Shay Jul 10, 2024
0c787b4
tests
H-Shay Jul 11, 2024
11cfc0a
newsfragment
H-Shay Jul 11, 2024
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requested changes
H-Shay Jul 16, 2024
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request doc changes
H-Shay Jul 17, 2024
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5 changes: 4 additions & 1 deletion synapse/storage/schema/__init__.py
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Expand Up @@ -19,7 +19,7 @@
#
#

SCHEMA_VERSION = 85 # remember to update the list below when updating
SCHEMA_VERSION = 86 # remember to update the list below when updating
"""Represents the expectations made by the codebase about the database schema

This should be incremented whenever the codebase changes its requirements on the
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Changes in SCHEMA_VERSION = 85
- Add a column `suspended` to the `users` table

Changes in SCHEMA_VERSION = 86
- Add a column `authenticated` to the tables `local_media_repository` and `remote_media_cache`
"""


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16 changes: 16 additions & 0 deletions synapse/storage/schema/main/delta/86/01_authenticate_media.sql
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--
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-- This file is licensed under the Affero General Public License (AGPL) version 3.
--
-- Copyright (C) 2024 New Vector, Ltd
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as
-- published by the Free Software Foundation, either version 3 of the
-- License, or (at your option) any later version.
--
-- See the GNU Affero General Public License for more details:
-- <https://www.gnu.org/licenses/agpl-3.0.html>.


ALTER TABLE remote_media_cache ADD COLUMN authenticated BOOLEAN;
ALTER TABLE local_media_repository ADD COLUMN authenticated BOOLEAN;
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should we have a DEFAULT value here, and make it NOT NULL?

It would be nice to add a comment describing the semantics of the value here, even briefly. If it's a nullable column, that should be described too, which is why I'm tempted to suggest making this NOT NULL.

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I guess the default could be False, although the code essentially assumes any media item for which this column isn't True is unauthenticated so I think the null works (but is probably unclear, as you are pointing out)- setting the default might make that clearer. Essentially all existing media in the table should be either null or False once the column is added, but I can make that clearer.

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Note that setting a DEFAULT means that the table needs to get rewritten to insert the new values, which takes a while. Leaving it as NULLABLE is somewhat annoying but by far the easiest.

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This isn't the case anymore since Postgres 11: https://www.dbi-services.com/blog/postgresql-11-instant-add-column-with-a-non-null-default-value/

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🤯