370 lines
12 KiB
Go
370 lines
12 KiB
Go
// Copyright (c) 2022 Tulir Asokan
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package sqlstatestore
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import (
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"database/sql"
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"embed"
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"encoding/json"
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"errors"
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"fmt"
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"strconv"
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"strings"
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"go.mau.fi/util/dbutil"
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"maunium.net/go/mautrix/event"
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"maunium.net/go/mautrix/id"
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)
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//go:embed *.sql
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var rawUpgrades embed.FS
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var UpgradeTable dbutil.UpgradeTable
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func init() {
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UpgradeTable.RegisterFS(rawUpgrades)
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}
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const VersionTableName = "mx_version"
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type SQLStateStore struct {
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*dbutil.Database
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IsBridge bool
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}
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func NewSQLStateStore(db *dbutil.Database, log dbutil.DatabaseLogger, isBridge bool) *SQLStateStore {
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return &SQLStateStore{
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Database: db.Child(VersionTableName, UpgradeTable, log),
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IsBridge: isBridge,
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}
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}
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func (store *SQLStateStore) IsRegistered(userID id.UserID) bool {
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var isRegistered bool
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err := store.
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QueryRow("SELECT EXISTS(SELECT 1 FROM mx_registrations WHERE user_id=$1)", userID).
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Scan(&isRegistered)
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if err != nil {
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store.Log.Warn("Failed to scan registration existence for %s: %v", userID, err)
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}
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return isRegistered
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}
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func (store *SQLStateStore) MarkRegistered(userID id.UserID) {
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_, err := store.Exec("INSERT INTO mx_registrations (user_id) VALUES ($1) ON CONFLICT (user_id) DO NOTHING", userID)
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if err != nil {
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store.Log.Warn("Failed to mark %s as registered: %v", userID, err)
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}
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}
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func (store *SQLStateStore) GetRoomMembers(roomID id.RoomID, memberships ...event.Membership) map[id.UserID]*event.MemberEventContent {
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members := make(map[id.UserID]*event.MemberEventContent)
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args := make([]any, len(memberships)+1)
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args[0] = roomID
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query := "SELECT user_id, membership, displayname, avatar_url FROM mx_user_profile WHERE room_id=$1"
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if len(memberships) > 0 {
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placeholders := make([]string, len(memberships))
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for i, membership := range memberships {
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args[i+1] = string(membership)
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placeholders[i] = fmt.Sprintf("$%d", i+2)
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}
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query = fmt.Sprintf("%s AND membership IN (%s)", query, strings.Join(placeholders, ","))
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}
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rows, err := store.Query(query, args...)
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if err != nil {
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return members
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}
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var userID id.UserID
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var member event.MemberEventContent
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for rows.Next() {
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err = rows.Scan(&userID, &member.Membership, &member.Displayname, &member.AvatarURL)
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if err != nil {
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store.Log.Warn("Failed to scan member in %s: %v", roomID, err)
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} else {
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members[userID] = &member
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}
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}
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return members
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}
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func (store *SQLStateStore) GetRoomJoinedOrInvitedMembers(roomID id.RoomID) (members []id.UserID, err error) {
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memberMap := store.GetRoomMembers(roomID, event.MembershipJoin, event.MembershipInvite)
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members = make([]id.UserID, len(memberMap))
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i := 0
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for userID := range memberMap {
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members[i] = userID
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i++
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}
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return
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}
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func (store *SQLStateStore) GetMembership(roomID id.RoomID, userID id.UserID) event.Membership {
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membership := event.MembershipLeave
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err := store.
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QueryRow("SELECT membership FROM mx_user_profile WHERE room_id=$1 AND user_id=$2", roomID, userID).
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Scan(&membership)
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if err != nil && !errors.Is(err, sql.ErrNoRows) {
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store.Log.Warn("Failed to scan membership of %s in %s: %v", userID, roomID, err)
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}
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return membership
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}
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func (store *SQLStateStore) GetMember(roomID id.RoomID, userID id.UserID) *event.MemberEventContent {
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member, ok := store.TryGetMember(roomID, userID)
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if !ok {
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member.Membership = event.MembershipLeave
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}
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return member
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}
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func (store *SQLStateStore) TryGetMember(roomID id.RoomID, userID id.UserID) (*event.MemberEventContent, bool) {
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var member event.MemberEventContent
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err := store.
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QueryRow("SELECT membership, displayname, avatar_url FROM mx_user_profile WHERE room_id=$1 AND user_id=$2", roomID, userID).
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Scan(&member.Membership, &member.Displayname, &member.AvatarURL)
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if err != nil && !errors.Is(err, sql.ErrNoRows) {
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store.Log.Warn("Failed to scan member info of %s in %s: %v", userID, roomID, err)
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}
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return &member, err == nil
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}
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func (store *SQLStateStore) FindSharedRooms(userID id.UserID) (rooms []id.RoomID) {
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query := `
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SELECT room_id FROM mx_user_profile
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LEFT JOIN portal ON portal.mxid=mx_user_profile.room_id
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WHERE mx_user_profile.user_id=$1 AND portal.encrypted=true
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`
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if !store.IsBridge {
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query = `
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SELECT mx_user_profile.room_id FROM mx_user_profile
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LEFT JOIN mx_room_state ON mx_room_state.room_id=mx_user_profile.room_id
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WHERE mx_user_profile.user_id=$1 AND mx_room_state.encryption IS NOT NULL
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`
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}
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rows, err := store.Query(query, userID)
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if err != nil {
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store.Log.Warn("Failed to query shared rooms with %s: %v", userID, err)
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return
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}
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for rows.Next() {
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var roomID id.RoomID
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err = rows.Scan(&roomID)
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if err != nil {
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store.Log.Warn("Failed to scan room ID: %v", err)
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} else {
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rooms = append(rooms, roomID)
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}
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}
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return
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}
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func (store *SQLStateStore) IsInRoom(roomID id.RoomID, userID id.UserID) bool {
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return store.IsMembership(roomID, userID, "join")
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}
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func (store *SQLStateStore) IsInvited(roomID id.RoomID, userID id.UserID) bool {
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return store.IsMembership(roomID, userID, "join", "invite")
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}
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func (store *SQLStateStore) IsMembership(roomID id.RoomID, userID id.UserID, allowedMemberships ...event.Membership) bool {
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membership := store.GetMembership(roomID, userID)
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for _, allowedMembership := range allowedMemberships {
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if allowedMembership == membership {
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return true
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}
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}
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return false
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}
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func (store *SQLStateStore) SetMembership(roomID id.RoomID, userID id.UserID, membership event.Membership) {
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_, err := store.Exec(`
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INSERT INTO mx_user_profile (room_id, user_id, membership, displayname, avatar_url) VALUES ($1, $2, $3, '', '')
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ON CONFLICT (room_id, user_id) DO UPDATE SET membership=excluded.membership
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`, roomID, userID, membership)
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if err != nil {
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store.Log.Warn("Failed to set membership of %s in %s to %s: %v", userID, roomID, membership, err)
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}
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}
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func (store *SQLStateStore) SetMember(roomID id.RoomID, userID id.UserID, member *event.MemberEventContent) {
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_, err := store.Exec(`
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INSERT INTO mx_user_profile (room_id, user_id, membership, displayname, avatar_url) VALUES ($1, $2, $3, $4, $5)
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ON CONFLICT (room_id, user_id) DO UPDATE SET membership=excluded.membership, displayname=excluded.displayname, avatar_url=excluded.avatar_url
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`, roomID, userID, member.Membership, member.Displayname, member.AvatarURL)
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if err != nil {
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store.Log.Warn("Failed to set membership of %s in %s to %s: %v", userID, roomID, member, err)
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}
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}
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func (store *SQLStateStore) ClearCachedMembers(roomID id.RoomID, memberships ...event.Membership) {
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query := "DELETE FROM mx_user_profile WHERE room_id=$1"
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params := make([]any, len(memberships)+1)
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params[0] = roomID
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if len(memberships) > 0 {
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placeholders := make([]string, len(memberships))
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for i, membership := range memberships {
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placeholders[i] = "$" + strconv.Itoa(i+2)
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params[i+1] = string(membership)
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}
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query += fmt.Sprintf(" AND membership IN (%s)", strings.Join(placeholders, ","))
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}
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_, err := store.Exec(query, params...)
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if err != nil {
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store.Log.Warn("Failed to clear cached members of %s: %v", roomID, err)
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}
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}
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func (store *SQLStateStore) SetEncryptionEvent(roomID id.RoomID, content *event.EncryptionEventContent) {
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contentBytes, err := json.Marshal(content)
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if err != nil {
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store.Log.Warn("Failed to marshal encryption config of %s: %v", roomID, err)
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return
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}
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_, err = store.Exec(`
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INSERT INTO mx_room_state (room_id, encryption) VALUES ($1, $2)
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ON CONFLICT (room_id) DO UPDATE SET encryption=excluded.encryption
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`, roomID, contentBytes)
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if err != nil {
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store.Log.Warn("Failed to store encryption config of %s: %v", roomID, err)
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}
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}
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func (store *SQLStateStore) GetEncryptionEvent(roomID id.RoomID) *event.EncryptionEventContent {
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var data []byte
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err := store.
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QueryRow("SELECT encryption FROM mx_room_state WHERE room_id=$1", roomID).
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Scan(&data)
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if err != nil {
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if !errors.Is(err, sql.ErrNoRows) {
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store.Log.Warn("Failed to scan encryption config of %s: %v", roomID, err)
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}
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return nil
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} else if data == nil {
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return nil
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}
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content := &event.EncryptionEventContent{}
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err = json.Unmarshal(data, content)
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if err != nil {
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store.Log.Warn("Failed to parse encryption config of %s: %v", roomID, err)
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return nil
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}
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return content
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}
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func (store *SQLStateStore) IsEncrypted(roomID id.RoomID) bool {
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cfg := store.GetEncryptionEvent(roomID)
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return cfg != nil && cfg.Algorithm == id.AlgorithmMegolmV1
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}
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func (store *SQLStateStore) SetPowerLevels(roomID id.RoomID, levels *event.PowerLevelsEventContent) {
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levelsBytes, err := json.Marshal(levels)
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if err != nil {
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store.Log.Warn("Failed to marshal power levels of %s: %v", roomID, err)
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return
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}
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_, err = store.Exec(`
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INSERT INTO mx_room_state (room_id, power_levels) VALUES ($1, $2)
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ON CONFLICT (room_id) DO UPDATE SET power_levels=excluded.power_levels
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`, roomID, levelsBytes)
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if err != nil {
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store.Log.Warn("Failed to store power levels of %s: %v", roomID, err)
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}
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}
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func (store *SQLStateStore) GetPowerLevels(roomID id.RoomID) (levels *event.PowerLevelsEventContent) {
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var data []byte
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err := store.
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QueryRow("SELECT power_levels FROM mx_room_state WHERE room_id=$1", roomID).
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Scan(&data)
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if err != nil {
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if !errors.Is(err, sql.ErrNoRows) {
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store.Log.Warn("Failed to scan power levels of %s: %v", roomID, err)
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}
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return
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} else if data == nil {
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return
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}
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levels = &event.PowerLevelsEventContent{}
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err = json.Unmarshal(data, levels)
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if err != nil {
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store.Log.Warn("Failed to parse power levels of %s: %v", roomID, err)
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return nil
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}
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return
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}
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func (store *SQLStateStore) GetPowerLevel(roomID id.RoomID, userID id.UserID) int {
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if store.Dialect == dbutil.Postgres {
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var powerLevel int
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err := store.
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QueryRow(`
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SELECT COALESCE((power_levels->'users'->$2)::int, (power_levels->'users_default')::int, 0)
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FROM mx_room_state WHERE room_id=$1
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`, roomID, userID).
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Scan(&powerLevel)
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if err != nil && !errors.Is(err, sql.ErrNoRows) {
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store.Log.Warn("Failed to scan power level of %s in %s: %v", userID, roomID, err)
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}
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return powerLevel
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}
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return store.GetPowerLevels(roomID).GetUserLevel(userID)
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}
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func (store *SQLStateStore) GetPowerLevelRequirement(roomID id.RoomID, eventType event.Type) int {
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if store.Dialect == dbutil.Postgres {
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defaultType := "events_default"
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defaultValue := 0
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if eventType.IsState() {
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defaultType = "state_default"
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defaultValue = 50
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}
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var powerLevel int
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err := store.
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QueryRow(`
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SELECT COALESCE((power_levels->'events'->$2)::int, (power_levels->'$3')::int, $4)
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FROM mx_room_state WHERE room_id=$1
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`, roomID, eventType.Type, defaultType, defaultValue).
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Scan(&powerLevel)
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if err != nil {
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if !errors.Is(err, sql.ErrNoRows) {
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store.Log.Warn("Failed to scan power level for %s in %s: %v", eventType, roomID, err)
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}
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return defaultValue
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}
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return powerLevel
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}
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return store.GetPowerLevels(roomID).GetEventLevel(eventType)
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}
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func (store *SQLStateStore) HasPowerLevel(roomID id.RoomID, userID id.UserID, eventType event.Type) bool {
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if store.Dialect == dbutil.Postgres {
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defaultType := "events_default"
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defaultValue := 0
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if eventType.IsState() {
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defaultType = "state_default"
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defaultValue = 50
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}
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var hasPower bool
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err := store.
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QueryRow(`SELECT
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COALESCE((power_levels->'users'->$2)::int, (power_levels->'users_default')::int, 0)
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>=
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COALESCE((power_levels->'events'->$3)::int, (power_levels->'$4')::int, $5)
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FROM mx_room_state WHERE room_id=$1`, roomID, userID, eventType.Type, defaultType, defaultValue).
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Scan(&hasPower)
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if err != nil {
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if !errors.Is(err, sql.ErrNoRows) {
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store.Log.Warn("Failed to scan power level for %s in %s: %v", eventType, roomID, err)
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}
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return defaultValue == 0
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}
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return hasPower
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}
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return store.GetPowerLevel(roomID, userID) >= store.GetPowerLevelRequirement(roomID, eventType)
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}
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