132 lines
4.1 KiB
Go
132 lines
4.1 KiB
Go
// Copyright 2017 Vector Creations Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package postgres
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import (
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"context"
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"database/sql"
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"github.com/lib/pq"
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"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
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)
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const membershipSchema = `
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-- Stores data about users memberships to rooms.
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CREATE TABLE IF NOT EXISTS account_memberships (
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-- The Matrix user ID localpart for the member
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localpart TEXT NOT NULL,
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-- The room this user is a member of
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room_id TEXT NOT NULL,
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-- The ID of the join membership event
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event_id TEXT NOT NULL,
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-- A user can only be member of a room once
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PRIMARY KEY (localpart, room_id)
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);
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-- Use index to process deletion by ID more efficiently
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CREATE UNIQUE INDEX IF NOT EXISTS account_membership_event_id ON account_memberships(event_id);
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`
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const insertMembershipSQL = `
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INSERT INTO account_memberships(localpart, room_id, event_id) VALUES ($1, $2, $3)
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ON CONFLICT (localpart, room_id) DO UPDATE SET event_id = EXCLUDED.event_id
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`
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const selectMembershipsByLocalpartSQL = "" +
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"SELECT room_id, event_id FROM account_memberships WHERE localpart = $1"
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const selectMembershipInRoomByLocalpartSQL = "" +
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"SELECT event_id FROM account_memberships WHERE localpart = $1 AND room_id = $2"
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const deleteMembershipsByEventIDsSQL = "" +
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"DELETE FROM account_memberships WHERE event_id = ANY($1)"
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type membershipStatements struct {
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deleteMembershipsByEventIDsStmt *sql.Stmt
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insertMembershipStmt *sql.Stmt
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selectMembershipInRoomByLocalpartStmt *sql.Stmt
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selectMembershipsByLocalpartStmt *sql.Stmt
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}
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func (s *membershipStatements) prepare(db *sql.DB) (err error) {
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_, err = db.Exec(membershipSchema)
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if err != nil {
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return
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}
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if s.deleteMembershipsByEventIDsStmt, err = db.Prepare(deleteMembershipsByEventIDsSQL); err != nil {
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return
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}
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if s.insertMembershipStmt, err = db.Prepare(insertMembershipSQL); err != nil {
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return
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}
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if s.selectMembershipInRoomByLocalpartStmt, err = db.Prepare(selectMembershipInRoomByLocalpartSQL); err != nil {
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return
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}
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if s.selectMembershipsByLocalpartStmt, err = db.Prepare(selectMembershipsByLocalpartSQL); err != nil {
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return
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}
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return
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}
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func (s *membershipStatements) insertMembership(
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ctx context.Context, txn *sql.Tx, localpart, roomID, eventID string,
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) (err error) {
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stmt := txn.Stmt(s.insertMembershipStmt)
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_, err = stmt.ExecContext(ctx, localpart, roomID, eventID)
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return
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}
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func (s *membershipStatements) deleteMembershipsByEventIDs(
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ctx context.Context, txn *sql.Tx, eventIDs []string,
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) (err error) {
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stmt := txn.Stmt(s.deleteMembershipsByEventIDsStmt)
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_, err = stmt.ExecContext(ctx, pq.StringArray(eventIDs))
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return
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}
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func (s *membershipStatements) selectMembershipInRoomByLocalpart(
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ctx context.Context, localpart, roomID string,
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) (authtypes.Membership, error) {
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membership := authtypes.Membership{Localpart: localpart, RoomID: roomID}
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stmt := s.selectMembershipInRoomByLocalpartStmt
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err := stmt.QueryRowContext(ctx, localpart, roomID).Scan(&membership.EventID)
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return membership, err
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}
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func (s *membershipStatements) selectMembershipsByLocalpart(
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ctx context.Context, localpart string,
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) (memberships []authtypes.Membership, err error) {
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stmt := s.selectMembershipsByLocalpartStmt
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rows, err := stmt.QueryContext(ctx, localpart)
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if err != nil {
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return
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}
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memberships = []authtypes.Membership{}
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defer rows.Close() // nolint: errcheck
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for rows.Next() {
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var m authtypes.Membership
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m.Localpart = localpart
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if err = rows.Scan(&m.RoomID, &m.EventID); err != nil {
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return
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}
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memberships = append(memberships, m)
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}
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return memberships, rows.Err()
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}
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