Add /_dendrite/admin/purgeRoom/{roomID} (#2662)

This adds a new admin endpoint `/_dendrite/admin/purgeRoom/{roomID}`. It
completely erases all database entries for a given room ID.

The roomserver will start by clearing all data for that room and then
will generate an output event to notify downstream components (i.e. the
sync API and federation API) to do the same.

It does not currently clear media and it is currently not implemented
for SQLite since it relies on SQL array operations right now.

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
Co-authored-by: Till Faelligen <2353100+S7evinK@users.noreply.github.com>
This commit is contained in:
Neil 2023-01-19 20:02:32 +00:00 committed by GitHub
parent 67f5c5bc1e
commit 738686ae68
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48 changed files with 1213 additions and 170 deletions

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@ -65,18 +65,22 @@ const selectMembershipCountSQL = "" +
const selectMembershipBeforeSQL = "" +
"SELECT membership, topological_pos FROM syncapi_memberships WHERE room_id = $1 and user_id = $2 AND topological_pos <= $3 ORDER BY topological_pos DESC LIMIT 1"
const purgeMembershipsSQL = "" +
"DELETE FROM syncapi_memberships WHERE room_id = $1"
const selectMembersSQL = `
SELECT event_id FROM (
SELECT DISTINCT ON (room_id, user_id) room_id, user_id, event_id, membership FROM syncapi_memberships WHERE room_id = $1 AND topological_pos <= $2 ORDER BY room_id, user_id, stream_pos DESC
) t
WHERE ($3::text IS NULL OR t.membership = $3)
AND ($4::text IS NULL OR t.membership <> $4)
SELECT event_id FROM (
SELECT DISTINCT ON (room_id, user_id) room_id, user_id, event_id, membership FROM syncapi_memberships WHERE room_id = $1 AND topological_pos <= $2 ORDER BY room_id, user_id, stream_pos DESC
) t
WHERE ($3::text IS NULL OR t.membership = $3)
AND ($4::text IS NULL OR t.membership <> $4)
`
type membershipsStatements struct {
upsertMembershipStmt *sql.Stmt
selectMembershipCountStmt *sql.Stmt
selectMembershipForUserStmt *sql.Stmt
purgeMembershipsStmt *sql.Stmt
selectMembersStmt *sql.Stmt
}
@ -90,6 +94,7 @@ func NewPostgresMembershipsTable(db *sql.DB) (tables.Memberships, error) {
{&s.upsertMembershipStmt, upsertMembershipSQL},
{&s.selectMembershipCountStmt, selectMembershipCountSQL},
{&s.selectMembershipForUserStmt, selectMembershipBeforeSQL},
{&s.purgeMembershipsStmt, purgeMembershipsSQL},
{&s.selectMembersStmt, selectMembersSQL},
}.Prepare(db)
}
@ -139,6 +144,13 @@ func (s *membershipsStatements) SelectMembershipForUser(
return membership, topologyPos, nil
}
func (s *membershipsStatements) PurgeMemberships(
ctx context.Context, txn *sql.Tx, roomID string,
) error {
_, err := sqlutil.TxStmt(txn, s.purgeMembershipsStmt).ExecContext(ctx, roomID)
return err
}
func (s *membershipsStatements) SelectMemberships(
ctx context.Context, txn *sql.Tx,
roomID string, pos types.TopologyToken,