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🗂️ DB functionality to execute the data retention.
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102 changes: 102 additions & 0 deletions
102
roomserver/storage/postgres/data_retention_statements.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| // Copyright 2022 The Matrix.org Foundation C.I.C. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package postgres | ||
|
|
||
| import ( | ||
| "context" | ||
| "database/sql" | ||
|
|
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| "github.com/matrix-org/dendrite/internal/sqlutil" | ||
| "github.com/matrix-org/dendrite/roomserver/api" | ||
| "github.com/matrix-org/dendrite/roomserver/types" | ||
| ) | ||
|
|
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| const dataRetentionEventJSONSQL = "" + | ||
| "DELETE FROM roomserver_event_json WHERE event_nid = ANY(" + | ||
| " SELECT re.event_nid" + | ||
| " FROM roomserver_events AS re" + | ||
| " JOIN roomserver_event_json AS rej ON re.event_nid = rej.event_nid" + | ||
| " WHERE rej.event_json LIKE '%\"type\":\"m.room.encrypted\"%'" + | ||
| " AND CAST(rej.event_json::jsonb->>'origin_server_ts' AS BIGINT) >= EXTRACT(EPOCH FROM NOW()) * 1000 - $2" + | ||
| " AND re.room_nid = $1" + | ||
| ")" | ||
|
|
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| const dataRetentionEventsSQL = "" + | ||
| "DELETE FROM roomserver_events WHERE event_nid = ANY(" + | ||
| " SELECT re.event_nid" + | ||
| " FROM roomserver_events AS re" + | ||
| " JOIN roomserver_event_json AS rej ON re.event_nid = rej.event_nid" + | ||
| " WHERE rej.event_json LIKE '%\"type\":\"m.room.encrypted\"%'" + | ||
| " AND CAST(rej.event_json::jsonb->>'origin_server_ts' AS BIGINT) >= EXTRACT(EPOCH FROM NOW()) * 1000 - $2" + | ||
| " AND re.room_nid = $1" + | ||
| ")" | ||
|
|
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| const dataRetentionPreviousEventsSQL = "" + | ||
| "UPDATE roomserver_previous_events SET event_nids = array_remove(event_nids, subquery.event_nid) FROM (" + | ||
| " SELECT re.event_nid" + | ||
| " FROM roomserver_events AS re" + | ||
| " JOIN roomserver_event_json AS rej ON re.event_nid = rej.event_nid" + | ||
| " WHERE rej.event_json LIKE '%\"type\":\"m.room.encrypted\"%'" + | ||
| " AND CAST(rej.event_json::jsonb->>'origin_server_ts' AS BIGINT) >= EXTRACT(EPOCH FROM NOW()) * 1000 - $2" + | ||
| " AND re.room_nid = $1" + | ||
| ") AS subquery" + | ||
| "WHERE event_nids @> ARRAY[subquery.event_nid]" | ||
|
|
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| const dataRetentionStateBlockEntriesSQL = "" + | ||
| "UPDATE roomserver_state_block SET event_nids = array_remove(event_nids, subquery.event_nid) FROM (" + | ||
| " SELECT re.event_nid" + | ||
| " FROM roomserver_events AS re" + | ||
| " JOIN roomserver_event_json AS rej ON re.event_nid = rej.event_nid" + | ||
| " WHERE rej.event_json LIKE '%\"type\":\"m.room.encrypted\"%'" + | ||
| " AND CAST(rej.event_json::jsonb->>'origin_server_ts' AS BIGINT) >= EXTRACT(EPOCH FROM NOW()) * 1000 - $2" + | ||
| " AND re.room_nid = $1" + | ||
| ") AS subquery" + | ||
| "WHERE event_nids @> ARRAY[subquery.event_nid]" | ||
|
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| type dataRetentionStatements struct { | ||
| dataRetentionEventJSONStmt *sql.Stmt | ||
| dataRetentionEventsStmt *sql.Stmt | ||
| dataRetentionPreviousEventsStmt *sql.Stmt | ||
| dataRetentionStateBlockEntriesStmt *sql.Stmt | ||
| } | ||
|
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| func PrepareDataRetentionStatements(db *sql.DB) (*dataRetentionStatements, error) { | ||
| s := &dataRetentionStatements{} | ||
|
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| return s, sqlutil.StatementList{ | ||
| {&s.dataRetentionEventJSONStmt, dataRetentionEventJSONSQL}, | ||
| {&s.dataRetentionEventsStmt, dataRetentionEventsSQL}, | ||
| {&s.dataRetentionPreviousEventsStmt, dataRetentionPreviousEventsSQL}, | ||
| {&s.dataRetentionStateBlockEntriesStmt, dataRetentionStateBlockEntriesSQL}, | ||
| }.Prepare(db) | ||
| } | ||
|
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| func (s *dataRetentionStatements) DataRetentionInRoom( | ||
| ctx context.Context, txn *sql.Tx, dr *api.PerformDataRetentionRequest, roomNID types.RoomNID, roomID string, | ||
| ) error { | ||
| dataRetentionByRoomNID := []*sql.Stmt{ | ||
| s.dataRetentionEventJSONStmt, | ||
| s.dataRetentionEventsStmt, | ||
| s.dataRetentionPreviousEventsStmt, | ||
| s.dataRetentionStateBlockEntriesStmt, | ||
| } | ||
| for _, stmt := range dataRetentionByRoomNID { | ||
| _, err := sqlutil.TxStmt(txn, stmt).ExecContext(ctx, roomNID) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| return nil | ||
| } |
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