mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-23 04:03:49 +00:00
636 lines
17 KiB
Go
636 lines
17 KiB
Go
package ethdb
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import (
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"bytes"
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"context"
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"crypto/tls"
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"crypto/x509"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"net"
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"time"
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"unsafe"
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"github.com/c2h5oh/datasize"
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"github.com/ledgerwatch/turbo-geth/common/dbutils"
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"github.com/ledgerwatch/turbo-geth/gointerfaces/remote"
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"github.com/ledgerwatch/turbo-geth/log"
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"google.golang.org/grpc"
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"google.golang.org/grpc/backoff"
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"google.golang.org/grpc/credentials"
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"google.golang.org/grpc/keepalive"
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"google.golang.org/grpc/test/bufconn"
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)
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// generate the messages and services
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//go:generate protoc --proto_path=../interfaces --go_out=. --go-grpc_out=. "remote/kv.proto" -I=. -I=./../build/include/google
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//go:generate protoc --proto_path=../interfaces --go_out=. --go-grpc_out=. "remote/db.proto" -I=. -I=./../build/include/google
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//go:generate protoc --proto_path=../interfaces --go_out=. --go-grpc_out=. "remote/ethbackend.proto" -I=. -I=./../build/include/google
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type remoteOpts struct {
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DialAddress string
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inMemConn *bufconn.Listener // for tests
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bucketsCfg BucketConfigsFunc
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}
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type RemoteKV struct {
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opts remoteOpts
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remoteKV remote.KVClient
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remoteDB remote.DBClient
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conn *grpc.ClientConn
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log log.Logger
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buckets dbutils.BucketsCfg
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}
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type remoteTx struct {
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ctx context.Context
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db *RemoteKV
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cursors []*remoteCursor
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stream remote.KV_TxClient
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streamCancelFn context.CancelFunc
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streamingRequested bool
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}
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type remoteCursor struct {
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initialized bool
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id uint32
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ctx context.Context
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stream remote.KV_TxClient
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tx *remoteTx
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bucketName string
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bucketCfg dbutils.BucketConfigItem
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}
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type remoteCursorDupSort struct {
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*remoteCursor
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}
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func (opts remoteOpts) ReadOnly() remoteOpts {
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return opts
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}
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func (opts remoteOpts) Path(path string) remoteOpts {
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opts.DialAddress = path
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return opts
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}
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func (opts remoteOpts) WithBucketsConfig(f BucketConfigsFunc) remoteOpts {
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opts.bucketsCfg = f
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return opts
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}
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func (opts remoteOpts) InMem(listener *bufconn.Listener) remoteOpts {
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opts.inMemConn = listener
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return opts
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}
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func (opts remoteOpts) Open(certFile, keyFile, caCert string) (RwKV, error) {
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var dialOpts []grpc.DialOption
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dialOpts = []grpc.DialOption{
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grpc.WithConnectParams(grpc.ConnectParams{Backoff: backoff.DefaultConfig, MinConnectTimeout: 10 * time.Minute}),
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grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(int(5 * datasize.MB))),
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grpc.WithKeepaliveParams(keepalive.ClientParameters{}),
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}
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if certFile == "" {
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dialOpts = append(dialOpts, grpc.WithInsecure())
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} else {
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var creds credentials.TransportCredentials
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var err error
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if caCert == "" {
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creds, err = credentials.NewClientTLSFromFile(certFile, "")
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if err != nil {
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return nil, err
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}
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} else {
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// load peer cert/key, ca cert
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peerCert, err := tls.LoadX509KeyPair(certFile, keyFile)
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if err != nil {
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log.Error("load peer cert/key error:%v", err)
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return nil, err
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}
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caCert, err := ioutil.ReadFile(caCert)
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if err != nil {
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log.Error("read ca cert file error:%v", err)
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return nil, err
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}
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caCertPool := x509.NewCertPool()
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caCertPool.AppendCertsFromPEM(caCert)
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creds = credentials.NewTLS(&tls.Config{
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Certificates: []tls.Certificate{peerCert},
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ClientCAs: caCertPool,
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ClientAuth: tls.RequireAndVerifyClientCert,
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//nolint:gosec
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InsecureSkipVerify: true, // This is to make it work when Common Name does not match - remove when procedure is updated for common name
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})
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}
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dialOpts = append(dialOpts, grpc.WithTransportCredentials(creds))
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}
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if opts.inMemConn != nil {
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dialOpts = append(dialOpts, grpc.WithContextDialer(func(ctx context.Context, url string) (net.Conn, error) {
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return opts.inMemConn.Dial()
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}))
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}
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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conn, err := grpc.DialContext(ctx, opts.DialAddress, dialOpts...)
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if err != nil {
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return nil, err
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}
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db := &RemoteKV{
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opts: opts,
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conn: conn,
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remoteKV: remote.NewKVClient(conn),
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remoteDB: remote.NewDBClient(conn),
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log: log.New("remote_db", opts.DialAddress),
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buckets: dbutils.BucketsCfg{},
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}
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customBuckets := opts.bucketsCfg(dbutils.BucketsConfigs)
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for name, cfg := range customBuckets { // copy map to avoid changing global variable
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db.buckets[name] = cfg
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}
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return db, nil
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}
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func (opts remoteOpts) MustOpen() RwKV {
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db, err := opts.Open("", "", "")
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if err != nil {
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panic(err)
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}
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return db
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}
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func NewRemote() remoteOpts {
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return remoteOpts{bucketsCfg: DefaultBucketConfigs}
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}
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func (db *RemoteKV) AllBuckets() dbutils.BucketsCfg {
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return db.buckets
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}
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func (db *RemoteKV) GrpcConn() *grpc.ClientConn {
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return db.conn
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}
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// Close
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// All transactions must be closed before closing the database.
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func (db *RemoteKV) Close() {
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if db.conn != nil {
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if err := db.conn.Close(); err != nil {
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db.log.Warn("failed to close remote DB", "err", err)
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} else {
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db.log.Info("remote database closed")
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}
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db.conn = nil
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}
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}
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func (db *RemoteKV) DiskSize(ctx context.Context) (uint64, error) {
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sizeReply, err := db.remoteDB.Size(ctx, &remote.SizeRequest{})
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if err != nil {
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return 0, err
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}
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return sizeReply.Size, nil
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}
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func (db *RemoteKV) CollectMetrics() {}
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func (db *RemoteKV) Begin(ctx context.Context) (Tx, error) {
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streamCtx, streamCancelFn := context.WithCancel(ctx) // We create child context for the stream so we can cancel it to prevent leak
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stream, err := db.remoteKV.Tx(streamCtx)
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if err != nil {
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streamCancelFn()
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return nil, err
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}
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return &remoteTx{ctx: ctx, db: db, stream: stream, streamCancelFn: streamCancelFn}, nil
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}
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func (db *RemoteKV) BeginRw(ctx context.Context) (RwTx, error) {
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return nil, fmt.Errorf("remote db provider doesn't support .BeginRw method")
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}
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func (db *RemoteKV) View(ctx context.Context, f func(tx Tx) error) (err error) {
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tx, err := db.Begin(ctx)
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if err != nil {
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return err
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}
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defer tx.Rollback()
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return f(tx)
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}
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func (db *RemoteKV) Update(ctx context.Context, f func(tx RwTx) error) (err error) {
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return fmt.Errorf("remote db provider doesn't support .Update method")
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}
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func (tx *remoteTx) Comparator(bucket string) dbutils.CmpFunc { panic("not implemented yet") }
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func (tx *remoteTx) CHandle() unsafe.Pointer { panic("not implemented yet") }
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func (tx *remoteTx) IncrementSequence(bucket string, amount uint64) (uint64, error) {
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panic("not implemented yet")
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}
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func (tx *remoteTx) ReadSequence(bucket string) (uint64, error) {
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panic("not implemented yet")
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}
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func (tx *remoteTx) Commit(ctx context.Context) error {
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panic("remote db is read-only")
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}
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func (tx *remoteTx) Rollback() {
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for _, c := range tx.cursors {
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c.Close()
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}
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tx.closeGrpcStream()
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}
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func (c *remoteCursor) Prefix(v []byte) Cursor {
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return c
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}
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func (c *remoteCursor) Prefetch(v uint) Cursor {
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return c
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}
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func (tx *remoteTx) BucketSize(name string) (uint64, error) {
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sizeReply, err := tx.db.remoteDB.BucketSize(tx.ctx, &remote.BucketSizeRequest{BucketName: name})
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if err != nil {
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return 0, err
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}
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return sizeReply.Size, nil
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}
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func (tx *remoteTx) GetOne(bucket string, key []byte) (val []byte, err error) {
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c := tx.Cursor(bucket)
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defer c.Close()
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_, val, err = c.SeekExact(key)
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return val, err
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}
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func (tx *remoteTx) HasOne(bucket string, key []byte) (bool, error) {
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c := tx.Cursor(bucket)
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defer c.Close()
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k, _, err := c.Seek(key)
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if err != nil {
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return false, err
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}
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return bytes.Equal(key, k), nil
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}
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func (c *remoteCursor) SeekExact(key []byte) (k, val []byte, err error) {
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if err := c.initCursor(); err != nil {
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return []byte{}, nil, err
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}
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return c.seekExact(key)
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}
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func (c *remoteCursor) Prev() ([]byte, []byte, error) {
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if err := c.initCursor(); err != nil {
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return []byte{}, nil, err
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}
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return c.prev()
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}
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func (tx *remoteTx) Cursor(bucket string) Cursor {
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b := tx.db.buckets[bucket]
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c := &remoteCursor{tx: tx, ctx: tx.ctx, bucketName: bucket, bucketCfg: b, stream: tx.stream}
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tx.cursors = append(tx.cursors, c)
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return c
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}
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func (c *remoteCursor) initCursor() error {
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if c.initialized {
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return nil
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}
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if err := c.stream.Send(&remote.Cursor{Op: remote.Op_OPEN, BucketName: c.bucketName}); err != nil {
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return err
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}
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msg, err := c.stream.Recv()
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if err != nil {
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return err
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}
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c.id = msg.CursorID
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c.initialized = true
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return nil
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}
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func (c *remoteCursor) Put(key []byte, value []byte) error { panic("not supported") }
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func (c *remoteCursor) PutNoOverwrite(key []byte, value []byte) error { panic("not supported") }
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func (c *remoteCursor) Append(key []byte, value []byte) error { panic("not supported") }
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func (c *remoteCursor) Delete(k, v []byte) error { panic("not supported") }
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func (c *remoteCursor) DeleteCurrent() error { panic("not supported") }
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func (c *remoteCursor) Count() (uint64, error) { panic("not supported") }
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func (c *remoteCursor) first() ([]byte, []byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_FIRST}); err != nil {
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return []byte{}, nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return []byte{}, nil, err
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}
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return pair.K, pair.V, nil
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}
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func (c *remoteCursor) next() ([]byte, []byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_NEXT}); err != nil {
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return []byte{}, nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return []byte{}, nil, err
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}
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return pair.K, pair.V, nil
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}
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func (c *remoteCursor) nextDup() ([]byte, []byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_NEXT_DUP}); err != nil {
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return []byte{}, nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return []byte{}, nil, err
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}
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return pair.K, pair.V, nil
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}
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func (c *remoteCursor) nextNoDup() ([]byte, []byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_NEXT_NO_DUP}); err != nil {
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return []byte{}, nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return []byte{}, nil, err
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}
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return pair.K, pair.V, nil
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}
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func (c *remoteCursor) prev() ([]byte, []byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_PREV}); err != nil {
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return []byte{}, nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return []byte{}, nil, err
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}
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return pair.K, pair.V, nil
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}
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func (c *remoteCursor) prevDup() ([]byte, []byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_PREV_DUP}); err != nil {
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return []byte{}, nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return []byte{}, nil, err
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}
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return pair.K, pair.V, nil
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}
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func (c *remoteCursor) prevNoDup() ([]byte, []byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_PREV_NO_DUP}); err != nil {
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return []byte{}, nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return []byte{}, nil, err
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}
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return pair.K, pair.V, nil
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}
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func (c *remoteCursor) last() ([]byte, []byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_LAST}); err != nil {
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return []byte{}, nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return []byte{}, nil, err
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}
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return pair.K, pair.V, nil
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}
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func (c *remoteCursor) setRange(k []byte) ([]byte, []byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_SEEK, K: k}); err != nil {
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return []byte{}, nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return []byte{}, nil, err
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}
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return pair.K, pair.V, nil
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}
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func (c *remoteCursor) seekExact(k []byte) ([]byte, []byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_SEEK_EXACT, K: k}); err != nil {
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return []byte{}, nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return []byte{}, nil, err
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}
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return pair.K, pair.V, nil
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}
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func (c *remoteCursor) getBothRange(k, v []byte) ([]byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_SEEK_BOTH, K: k, V: v}); err != nil {
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return nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return nil, err
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}
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return pair.V, nil
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}
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func (c *remoteCursor) seekBothExact(k, v []byte) ([]byte, []byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_SEEK_BOTH_EXACT, K: k, V: v}); err != nil {
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return []byte{}, nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return []byte{}, nil, err
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}
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return pair.K, pair.V, nil
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}
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func (c *remoteCursor) firstDup() ([]byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_FIRST_DUP}); err != nil {
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return nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return nil, err
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}
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return pair.V, nil
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}
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func (c *remoteCursor) lastDup() ([]byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_LAST_DUP}); err != nil {
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return nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return nil, err
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}
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return pair.V, nil
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}
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func (c *remoteCursor) getCurrent() ([]byte, []byte, error) {
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if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_CURRENT}); err != nil {
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return []byte{}, nil, err
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}
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pair, err := c.stream.Recv()
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if err != nil {
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return []byte{}, nil, err
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}
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return pair.K, pair.V, nil
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}
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func (c *remoteCursor) Current() ([]byte, []byte, error) {
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if err := c.initCursor(); err != nil {
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return []byte{}, nil, err
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}
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return c.getCurrent()
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}
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// Seek - doesn't start streaming (because much of code does only several .Seek calls without reading sequence of data)
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// .Next() - does request streaming (if configured by user)
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func (c *remoteCursor) Seek(seek []byte) ([]byte, []byte, error) {
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if err := c.initCursor(); err != nil {
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return []byte{}, nil, err
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}
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return c.setRange(seek)
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}
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func (c *remoteCursor) First() ([]byte, []byte, error) {
|
|
if err := c.initCursor(); err != nil {
|
|
return []byte{}, nil, err
|
|
}
|
|
return c.first()
|
|
}
|
|
|
|
// Next - returns next data element from server, request streaming (if configured by user)
|
|
func (c *remoteCursor) Next() ([]byte, []byte, error) {
|
|
if err := c.initCursor(); err != nil {
|
|
return []byte{}, nil, err
|
|
}
|
|
return c.next()
|
|
}
|
|
|
|
func (c *remoteCursor) Last() ([]byte, []byte, error) {
|
|
if err := c.initCursor(); err != nil {
|
|
return []byte{}, nil, err
|
|
}
|
|
return c.last()
|
|
}
|
|
|
|
func (tx *remoteTx) closeGrpcStream() {
|
|
if tx.stream == nil {
|
|
return
|
|
}
|
|
defer tx.streamCancelFn() // hard cancel stream if graceful wasn't successful
|
|
|
|
if tx.streamingRequested {
|
|
// if streaming is in progress, can't use `CloseSend` - because
|
|
// server will not read it right not - it busy with streaming data
|
|
// TODO: set flag 'tx.streamingRequested' to false when got terminator from server (nil key or os.EOF)
|
|
tx.streamCancelFn()
|
|
} else {
|
|
// try graceful close stream
|
|
err := tx.stream.CloseSend()
|
|
if err != nil {
|
|
if !errors.Is(err, io.EOF) && !errors.Is(err, context.Canceled) {
|
|
log.Warn("couldn't send msg CloseSend to server", "err", err)
|
|
}
|
|
} else {
|
|
_, err = tx.stream.Recv()
|
|
if err != nil && !errors.Is(err, io.EOF) && !errors.Is(err, context.Canceled) {
|
|
log.Warn("received unexpected error from server after CloseSend", "err", err)
|
|
}
|
|
}
|
|
}
|
|
tx.stream = nil
|
|
tx.streamingRequested = false
|
|
}
|
|
|
|
func (c *remoteCursor) Close() {
|
|
if c.initialized {
|
|
if err := c.stream.Send(&remote.Cursor{Cursor: c.id, Op: remote.Op_CLOSE}); err == nil {
|
|
_, _ = c.stream.Recv()
|
|
}
|
|
c.initialized = false
|
|
}
|
|
}
|
|
|
|
func (tx *remoteTx) CursorDupSort(bucket string) CursorDupSort {
|
|
return &remoteCursorDupSort{remoteCursor: tx.Cursor(bucket).(*remoteCursor)}
|
|
}
|
|
|
|
//func (c *remoteCursorDupSort) initCursor() error {
|
|
// if c.initialized {
|
|
// return nil
|
|
// }
|
|
//
|
|
// if c.bucketCfg.AutoDupSortKeysConversion {
|
|
// return fmt.Errorf("class remoteCursorDupSort not compatible with AutoDupSortKeysConversion buckets")
|
|
// }
|
|
//
|
|
// if c.bucketCfg.Flags&dbutils.DupSort == 0 {
|
|
// return fmt.Errorf("class remoteCursorDupSort can be used only if bucket created with flag dbutils.DupSort")
|
|
// }
|
|
//
|
|
// return c.remoteCursor.initCursor()
|
|
//}
|
|
|
|
func (c *remoteCursorDupSort) SeekBothExact(key, value []byte) ([]byte, []byte, error) {
|
|
if err := c.initCursor(); err != nil {
|
|
return []byte{}, nil, err
|
|
}
|
|
return c.seekBothExact(key, value)
|
|
}
|
|
|
|
func (c *remoteCursorDupSort) SeekBothRange(key, value []byte) ([]byte, error) {
|
|
if err := c.initCursor(); err != nil {
|
|
return nil, err
|
|
}
|
|
return c.getBothRange(key, value)
|
|
}
|
|
|
|
func (c *remoteCursorDupSort) DeleteExact(k1, k2 []byte) error { panic("not supported") }
|
|
func (c *remoteCursorDupSort) AppendDup(k []byte, v []byte) error { panic("not supported") }
|
|
func (c *remoteCursorDupSort) PutNoDupData(key, value []byte) error { panic("not supported") }
|
|
func (c *remoteCursorDupSort) DeleteCurrentDuplicates() error { panic("not supported") }
|
|
func (c *remoteCursorDupSort) CountDuplicates() (uint64, error) { panic("not supported") }
|
|
|
|
func (c *remoteCursorDupSort) FirstDup() ([]byte, error) {
|
|
if err := c.initCursor(); err != nil {
|
|
return nil, err
|
|
}
|
|
return c.firstDup()
|
|
}
|
|
func (c *remoteCursorDupSort) NextDup() ([]byte, []byte, error) {
|
|
if err := c.initCursor(); err != nil {
|
|
return []byte{}, nil, err
|
|
}
|
|
return c.nextDup()
|
|
}
|
|
func (c *remoteCursorDupSort) NextNoDup() ([]byte, []byte, error) {
|
|
if err := c.initCursor(); err != nil {
|
|
return []byte{}, nil, err
|
|
}
|
|
return c.nextNoDup()
|
|
}
|
|
func (c *remoteCursorDupSort) PrevDup() ([]byte, []byte, error) {
|
|
if err := c.initCursor(); err != nil {
|
|
return []byte{}, nil, err
|
|
}
|
|
return c.prevDup()
|
|
}
|
|
func (c *remoteCursorDupSort) PrevNoDup() ([]byte, []byte, error) {
|
|
if err := c.initCursor(); err != nil {
|
|
return []byte{}, nil, err
|
|
}
|
|
return c.prevNoDup()
|
|
}
|
|
func (c *remoteCursorDupSort) LastDup() ([]byte, error) {
|
|
if err := c.initCursor(); err != nil {
|
|
return nil, err
|
|
}
|
|
return c.lastDup()
|
|
}
|