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Fix newly joined users presence (#2854)

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Fixes #2803 
Also refactors the presence stream to not hit the database for every
user, instead queries all users at once now.
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Till 2022-12-08 08:25:03 +01:00 • committed by GitHub
parent 0351618ff4
commit c136a450d5
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11 changed files with 263 additions and 75 deletions
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48
syncapi/storage/sqlite3/presence_table.go
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@ -17,12 +17,14 @@ package sqlite3
import (
"context"
"database/sql"
"strings"
"time"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/syncapi/types"
"github.com/matrix-org/gomatrixserverlib"
)
const presenceSchema = `
@ -62,9 +64,9 @@ const upsertPresenceFromSyncSQL = "" +
" RETURNING id"
const selectPresenceForUserSQL = "" +
"SELECT presence, status_msg, last_active_ts" +
"SELECT user_id, presence, status_msg, last_active_ts" +
" FROM syncapi_presence" +
" WHERE user_id = $1 LIMIT 1"
" WHERE user_id IN ($1)"
const selectMaxPresenceSQL = "" +
"SELECT COALESCE(MAX(id), 0) FROM syncapi_presence"
@ -134,20 +136,38 @@ func (p *presenceStatements) UpsertPresence(
return
}
// GetPresenceForUser returns the current presence of a user.
func (p *presenceStatements) GetPresenceForUser(
// GetPresenceForUsers returns the current presence for a list of users.
// If the user doesn't have a presence status yet, it is omitted from the response.
func (p *presenceStatements) GetPresenceForUsers(
ctx context.Context, txn *sql.Tx,
userID string,
) (*types.PresenceInternal, error) {
result := &types.PresenceInternal{
UserID: userID,
userIDs []string,
) ([]*types.PresenceInternal, error) {
qry := strings.Replace(selectPresenceForUserSQL, "($1)", sqlutil.QueryVariadic(len(userIDs)), 1)
prepStmt, err := p.db.Prepare(qry)
if err != nil {
return nil, err
}
stmt := sqlutil.TxStmt(txn, p.selectPresenceForUsersStmt)
err := stmt.QueryRowContext(ctx, userID).Scan(&result.Presence, &result.ClientFields.StatusMsg, &result.LastActiveTS)
if err == sql.ErrNoRows {
return nil, nil
defer internal.CloseAndLogIfError(ctx, prepStmt, "GetPresenceForUsers: stmt.close() failed")
params := make([]interface{}, len(userIDs))
for i := range userIDs {
params[i] = userIDs[i]
}
rows, err := sqlutil.TxStmt(txn, prepStmt).QueryContext(ctx, params...)
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "GetPresenceForUsers: rows.close() failed")
result := make([]*types.PresenceInternal, 0, len(userIDs))
for rows.Next() {
presence := &types.PresenceInternal{}
if err = rows.Scan(&presence.UserID, &presence.Presence, &presence.ClientFields.StatusMsg, &presence.LastActiveTS); err != nil {
return nil, err
}
presence.ClientFields.Presence = presence.Presence.String()
result = append(result, presence)
}
result.ClientFields.Presence = result.Presence.String()
return result, err
}