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Support sqlite in addition to postgres (#869)

Browse source 
* Move current work into single branch

* Initial massaging of clientapi etc (not working yet)

* Interfaces for accounts/devices databases

* Duplicate postgres package for sqlite3 (no changes made to it yet)

* Some keydb, accountdb, devicedb, common partition fixes, some more syncapi tweaking

* Fix accounts DB, device DB

* Update naffka dependency for SQLite

* Naffka SQLite

* Update naffka to latest master

* SQLite support for federationsender

* Mostly not-bad support for SQLite in syncapi (although there are problems where lots of events get classed incorrectly as backward extremities, probably because of IN/ANY clauses that are badly supported)

* Update Dockerfile -> Go 1.13.7, add build-base (as gcc and friends are needed for SQLite)

* Implement GET endpoints for account_data in clientapi

* Nuke filtering for now...

* Revert "Implement GET endpoints for account_data in clientapi"

This reverts commit 4d80dff4583d278620d9b3ed437e9fcd8d4674ee.

* Implement GET endpoints for account_data in clientapi (#861)

* Implement GET endpoints for account_data in clientapi

* Fix accountDB parameter

* Remove fmt.Println

* Fix insertAccountData SQLite query

* Fix accountDB storage interfaces

* Add empty push rules into account data on account creation (#862)

* Put SaveAccountData into the right function this time

* Not sure if roomserver is better or worse now

* sqlite work

* Allow empty last sent ID for the first event

* sqlite: room creation works

* Support sending messages

* Nuke fmt.println

* Move QueryVariadic etc into common, other device fixes

* Fix some linter issues

* Fix bugs

* Fix some linting errors

* Fix errcheck lint errors

* Make naffka use postgres as fallback, fix couple of compile errors

* What on earth happened to the /rooms/{roomID}/send/{eventType} routing

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
This commit is contained in:
Kegsay 2020-02-13 17:27:33 +00:00 • committed by GitHub
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commit b6ea1bc67a
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syncapi/storage/sqlite3/output_room_events_table.go Normal file
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// Copyright 2017-2018 New Vector Ltd
// Copyright 2019-2020 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 sqlite3
import (
"context"
"database/sql"
"encoding/json"
"sort"
"github.com/matrix-org/dendrite/roomserver/api"
"github.com/matrix-org/dendrite/syncapi/types"
"github.com/lib/pq"
"github.com/matrix-org/dendrite/common"
"github.com/matrix-org/gomatrixserverlib"
log "github.com/sirupsen/logrus"
)
const outputRoomEventsSchema = `
-- Stores output room events received from the roomserver.
CREATE TABLE IF NOT EXISTS syncapi_output_room_events (
id INTEGER PRIMARY KEY AUTOINCREMENT,
event_id TEXT NOT NULL UNIQUE,
room_id TEXT NOT NULL,
event_json TEXT NOT NULL,
type TEXT NOT NULL,
sender TEXT NOT NULL,
contains_url BOOL NOT NULL,
add_state_ids TEXT[],
remove_state_ids TEXT[],
session_id BIGINT,
transaction_id TEXT,
exclude_from_sync BOOL DEFAULT FALSE
);
`
const insertEventSQL = "" +
"INSERT INTO syncapi_output_room_events (" +
"id, room_id, event_id, event_json, type, sender, contains_url, add_state_ids, remove_state_ids, session_id, transaction_id, exclude_from_sync" +
") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12) " +
"ON CONFLICT (event_id) DO UPDATE SET exclude_from_sync = $11"
const selectLastInsertedEventSQL = "" +
"SELECT id FROM syncapi_output_room_events WHERE rowid = last_insert_rowid()"
const selectEventsSQL = "" +
"SELECT id, event_json, session_id, exclude_from_sync, transaction_id FROM syncapi_output_room_events WHERE event_id = $1"
const selectRecentEventsSQL = "" +
"SELECT id, event_json, session_id, exclude_from_sync, transaction_id FROM syncapi_output_room_events" +
" WHERE room_id = $1 AND id > $2 AND id <= $3" +
" ORDER BY id DESC LIMIT $4"
const selectRecentEventsForSyncSQL = "" +
"SELECT id, event_json, session_id, exclude_from_sync, transaction_id FROM syncapi_output_room_events" +
" WHERE room_id = $1 AND id > $2 AND id <= $3 AND exclude_from_sync = FALSE" +
" ORDER BY id DESC LIMIT $4"
const selectEarlyEventsSQL = "" +
"SELECT id, event_json, session_id, exclude_from_sync, transaction_id FROM syncapi_output_room_events" +
" WHERE room_id = $1 AND id > $2 AND id <= $3" +
" ORDER BY id ASC LIMIT $4"
const selectMaxEventIDSQL = "" +
"SELECT MAX(id) FROM syncapi_output_room_events"
// In order for us to apply the state updates correctly, rows need to be ordered in the order they were received (id).
/*
$1 = oldPos,
$2 = newPos,
$3 = pq.StringArray(stateFilterPart.Senders),
$4 = pq.StringArray(stateFilterPart.NotSenders),
$5 = pq.StringArray(filterConvertTypeWildcardToSQL(stateFilterPart.Types)),
$6 = pq.StringArray(filterConvertTypeWildcardToSQL(stateFilterPart.NotTypes)),
$7 = stateFilterPart.ContainsURL,
$8 = stateFilterPart.Limit,
*/
const selectStateInRangeSQL = "" +
"SELECT id, event_json, exclude_from_sync, add_state_ids, remove_state_ids" +
" FROM syncapi_output_room_events" +
" WHERE (id > $1 AND id <= $2)" + // old/new pos
" AND (add_state_ids IS NOT NULL OR remove_state_ids IS NOT NULL)" +
/* " AND ( $3 IS NULL OR sender IN ($3) )" + // sender
" AND ( $4 IS NULL OR NOT(sender IN ($4)) )" + // not sender
" AND ( $5 IS NULL OR type IN ($5) )" + // type
" AND ( $6 IS NULL OR NOT(type IN ($6)) )" + // not type
" AND ( $7 IS NULL OR contains_url = $7)" + // contains URL? */
" ORDER BY id ASC" +
" LIMIT $8" // limit
type outputRoomEventsStatements struct {
streamIDStatements *streamIDStatements
insertEventStmt *sql.Stmt
selectLastInsertedEventStmt *sql.Stmt
selectEventsStmt *sql.Stmt
selectMaxEventIDStmt *sql.Stmt
selectRecentEventsStmt *sql.Stmt
selectRecentEventsForSyncStmt *sql.Stmt
selectEarlyEventsStmt *sql.Stmt
selectStateInRangeStmt *sql.Stmt
}
func (s *outputRoomEventsStatements) prepare(db *sql.DB, streamID *streamIDStatements) (err error) {
s.streamIDStatements = streamID
_, err = db.Exec(outputRoomEventsSchema)
if err != nil {
return
}
if s.insertEventStmt, err = db.Prepare(insertEventSQL); err != nil {
return
}
if s.selectLastInsertedEventStmt, err = db.Prepare(selectLastInsertedEventSQL); err != nil {
return
}
if s.selectEventsStmt, err = db.Prepare(selectEventsSQL); err != nil {
return
}
if s.selectMaxEventIDStmt, err = db.Prepare(selectMaxEventIDSQL); err != nil {
return
}
if s.selectRecentEventsStmt, err = db.Prepare(selectRecentEventsSQL); err != nil {
return
}
if s.selectRecentEventsForSyncStmt, err = db.Prepare(selectRecentEventsForSyncSQL); err != nil {
return
}
if s.selectEarlyEventsStmt, err = db.Prepare(selectEarlyEventsSQL); err != nil {
return
}
if s.selectStateInRangeStmt, err = db.Prepare(selectStateInRangeSQL); err != nil {
return
}
return
}
// selectStateInRange returns the state events between the two given PDU stream positions, exclusive of oldPos, inclusive of newPos.
// Results are bucketed based on the room ID. If the same state is overwritten multiple times between the
// two positions, only the most recent state is returned.
func (s *outputRoomEventsStatements) selectStateInRange(
ctx context.Context, txn *sql.Tx, oldPos, newPos types.StreamPosition,
stateFilterPart *gomatrixserverlib.StateFilter,
) (map[string]map[string]bool, map[string]types.StreamEvent, error) {
stmt := common.TxStmt(txn, s.selectStateInRangeStmt)
rows, err := stmt.QueryContext(
ctx, oldPos, newPos,
/*pq.StringArray(stateFilterPart.Senders),
pq.StringArray(stateFilterPart.NotSenders),
pq.StringArray(filterConvertTypeWildcardToSQL(stateFilterPart.Types)),
pq.StringArray(filterConvertTypeWildcardToSQL(stateFilterPart.NotTypes)),
stateFilterPart.ContainsURL,*/
stateFilterPart.Limit,
)
if err != nil {
return nil, nil, err
}
// Fetch all the state change events for all rooms between the two positions then loop each event and:
// - Keep a cache of the event by ID (99% of state change events are for the event itself)
// - For each room ID, build up an array of event IDs which represents cumulative adds/removes
// For each room, map cumulative event IDs to events and return. This may need to a batch SELECT based on event ID
// if they aren't in the event ID cache. We don't handle state deletion yet.
eventIDToEvent := make(map[string]types.StreamEvent)
// RoomID => A set (map[string]bool) of state event IDs which are between the two positions
stateNeeded := make(map[string]map[string]bool)
for rows.Next() {
var (
streamPos types.StreamPosition
eventBytes []byte
excludeFromSync bool
addIDs pq.StringArray
delIDs pq.StringArray
)
if err := rows.Scan(&streamPos, &eventBytes, &excludeFromSync, &addIDs, &delIDs); err != nil {
return nil, nil, err
}
// Sanity check for deleted state and whine if we see it. We don't need to do anything
// since it'll just mark the event as not being needed.
if len(addIDs) < len(delIDs) {
log.WithFields(log.Fields{
"since": oldPos,
"current": newPos,
"adds": addIDs,
"dels": delIDs,
}).Warn("StateBetween: ignoring deleted state")
}
// TODO: Handle redacted events
ev, err := gomatrixserverlib.NewEventFromTrustedJSON(eventBytes, false)
if err != nil {
return nil, nil, err
}
needSet := stateNeeded[ev.RoomID()]
if needSet == nil { // make set if required
needSet = make(map[string]bool)
}
for _, id := range delIDs {
needSet[id] = false
}
for _, id := range addIDs {
needSet[id] = true
}
stateNeeded[ev.RoomID()] = needSet
eventIDToEvent[ev.EventID()] = types.StreamEvent{
Event: ev,
StreamPosition: streamPos,
ExcludeFromSync: excludeFromSync,
}
}
return stateNeeded, eventIDToEvent, nil
}
// MaxID returns the ID of the last inserted event in this table. 'txn' is optional. If it is not supplied,
// then this function should only ever be used at startup, as it will race with inserting events if it is
// done afterwards. If there are no inserted events, 0 is returned.
func (s *outputRoomEventsStatements) selectMaxEventID(
ctx context.Context, txn *sql.Tx,
) (id int64, err error) {
var nullableID sql.NullInt64
stmt := common.TxStmt(txn, s.selectMaxEventIDStmt)
err = stmt.QueryRowContext(ctx).Scan(&nullableID)
if nullableID.Valid {
id = nullableID.Int64
}
return
}
// InsertEvent into the output_room_events table. addState and removeState are an optional list of state event IDs. Returns the position
// of the inserted event.
func (s *outputRoomEventsStatements) insertEvent(
ctx context.Context, txn *sql.Tx,
event *gomatrixserverlib.Event, addState, removeState []string,
transactionID *api.TransactionID, excludeFromSync bool,
) (streamPos types.StreamPosition, err error) {
var txnID *string
var sessionID *int64
if transactionID != nil {
sessionID = &transactionID.SessionID
txnID = &transactionID.TransactionID
}
// Parse content as JSON and search for an "url" key
containsURL := false
var content map[string]interface{}
if json.Unmarshal(event.Content(), &content) != nil {
// Set containsURL to true if url is present
_, containsURL = content["url"]
}
streamPos, err = s.streamIDStatements.nextStreamID(ctx, txn)
if err != nil {
return
}
insertStmt := common.TxStmt(txn, s.insertEventStmt)
selectStmt := common.TxStmt(txn, s.selectLastInsertedEventStmt)
_, err = insertStmt.ExecContext(
ctx,
streamPos,
event.RoomID(),
event.EventID(),
event.JSON(),
event.Type(),
event.Sender(),
containsURL,
pq.StringArray(addState),
pq.StringArray(removeState),
sessionID,
txnID,
excludeFromSync,
)
if err != nil {
return
}
err = selectStmt.QueryRowContext(ctx).Scan(&streamPos)
return
}
// selectRecentEvents returns the most recent events in the given room, up to a maximum of 'limit'.
// If onlySyncEvents has a value of true, only returns the events that aren't marked as to exclude
// from sync.
func (s *outputRoomEventsStatements) selectRecentEvents(
ctx context.Context, txn *sql.Tx,
roomID string, fromPos, toPos types.StreamPosition, limit int,
chronologicalOrder bool, onlySyncEvents bool,
) ([]types.StreamEvent, error) {
var stmt *sql.Stmt
if onlySyncEvents {
stmt = common.TxStmt(txn, s.selectRecentEventsForSyncStmt)
} else {
stmt = common.TxStmt(txn, s.selectRecentEventsStmt)
}
rows, err := stmt.QueryContext(ctx, roomID, fromPos, toPos, limit)
if err != nil {
return nil, err
}
defer rows.Close() // nolint: errcheck
events, err := rowsToStreamEvents(rows)
if err != nil {
return nil, err
}
if chronologicalOrder {
// The events need to be returned from oldest to latest, which isn't
// necessary the way the SQL query returns them, so a sort is necessary to
// ensure the events are in the right order in the slice.
sort.SliceStable(events, func(i int, j int) bool {
return events[i].StreamPosition < events[j].StreamPosition
})
}
return events, nil
}
// selectEarlyEvents returns the earliest events in the given room, starting
// from a given position, up to a maximum of 'limit'.
func (s *outputRoomEventsStatements) selectEarlyEvents(
ctx context.Context, txn *sql.Tx,
roomID string, fromPos, toPos types.StreamPosition, limit int,
) ([]types.StreamEvent, error) {
stmt := common.TxStmt(txn, s.selectEarlyEventsStmt)
rows, err := stmt.QueryContext(ctx, roomID, fromPos, toPos, limit)
if err != nil {
return nil, err
}
defer rows.Close() // nolint: errcheck
events, err := rowsToStreamEvents(rows)
if err != nil {
return nil, err
}
// The events need to be returned from oldest to latest, which isn't
// necessarily the way the SQL query returns them, so a sort is necessary to
// ensure the events are in the right order in the slice.
sort.SliceStable(events, func(i int, j int) bool {
return events[i].StreamPosition < events[j].StreamPosition
})
return events, nil
}
// selectEvents returns the events for the given event IDs. If an event is
// missing from the database, it will be omitted.
func (s *outputRoomEventsStatements) selectEvents(
ctx context.Context, txn *sql.Tx, eventIDs []string,
) ([]types.StreamEvent, error) {
var returnEvents []types.StreamEvent
stmt := common.TxStmt(txn, s.selectEventsStmt)
for _, eventID := range eventIDs {
rows, err := stmt.QueryContext(ctx, eventID)
if err != nil {
return nil, err
}
if streamEvents, err := rowsToStreamEvents(rows); err == nil {
returnEvents = append(returnEvents, streamEvents...)
}
rows.Close() // nolint: errcheck
}
return returnEvents, nil
}
func rowsToStreamEvents(rows *sql.Rows) ([]types.StreamEvent, error) {
var result []types.StreamEvent
for rows.Next() {
var (
streamPos types.StreamPosition
eventBytes []byte
excludeFromSync bool
sessionID *int64
txnID *string
transactionID *api.TransactionID
)
if err := rows.Scan(&streamPos, &eventBytes, &sessionID, &excludeFromSync, &txnID); err != nil {
return nil, err
}
// TODO: Handle redacted events
ev, err := gomatrixserverlib.NewEventFromTrustedJSON(eventBytes, false)
if err != nil {
return nil, err
}
if sessionID != nil && txnID != nil {
transactionID = &api.TransactionID{
SessionID: *sessionID,
TransactionID: *txnID,
}
}
result = append(result, types.StreamEvent{
Event: ev,
StreamPosition: streamPos,
TransactionID: transactionID,
ExcludeFromSync: excludeFromSync,
})
}
return result, nil
}