zecfoundation
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lightwalletd
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Add transparent txns

This commit is contained in:
Aditya Kulkarni 2019-09-13 16:02:58 -07:00
parent 7644852fc6
commit d36126ba9d
4 changed files with 220 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
cmd/server/main.go
View File

@ -160,7 +160,7 @@ func main() {
}
// Compact transaction service initialization
service, err := frontend.NewSQLiteStreamer(opts.dbPath, rpcClient)
service, err := frontend.NewSQLiteStreamer(opts.dbPath, rpcClient, log)
if err != nil {
log.WithFields(logrus.Fields{
"db_path": opts.dbPath,

61
frontend/service.go
View File

@ -13,6 +13,7 @@ import (
"github.com/adityapk00/btcd/rpcclient"
"github.com/golang/protobuf/proto"
"github.com/sirupsen/logrus"
// blank import for sqlite driver support
_ "github.com/mattn/go-sqlite3"
@ -29,9 +30,10 @@ var (
type SqlStreamer struct {
db *sql.DB
client *rpcclient.Client
log *logrus.Entry
}
func NewSQLiteStreamer(dbPath string, client *rpcclient.Client) (walletrpc.CompactTxStreamerServer, error) {
func NewSQLiteStreamer(dbPath string, client *rpcclient.Client, log *logrus.Entry) (walletrpc.CompactTxStreamerServer, error) {
db, err := sql.Open("sqlite3", fmt.Sprintf("file:%s?_busy_timeout=10000&cache=shared", dbPath))
db.SetMaxOpenConns(1)
if err != nil {
@ -44,7 +46,7 @@ func NewSQLiteStreamer(dbPath string, client *rpcclient.Client) (walletrpc.Compa
return nil, err
}
return &SqlStreamer{db, client}, nil
return &SqlStreamer{db, client, log}, nil
}
func (s *SqlStreamer) GracefulStop() error {
@ -86,6 +88,61 @@ func (s *SqlStreamer) GetBlock(ctx context.Context, id *walletrpc.BlockID) (*wal
return cBlock, err
}
func (s *SqlStreamer) GetAddressTxids(addressBlockFilter *walletrpc.TransparentAddressBlockFilter, resp walletrpc.CompactTxStreamer_GetAddressTxidsServer) error {
params := make([]json.RawMessage, 1)
st := "{\"addresses\": [\"" + addressBlockFilter.Address + "\"]," +
"\"start\": " + strconv.FormatUint(addressBlockFilter.Range.Start.Height, 10) +
", \"end\": " + strconv.FormatUint(addressBlockFilter.Range.End.Height, 10) + "}"
params[0] = json.RawMessage(st)
result, rpcErr := s.client.RawRequest("getaddresstxids", params)
var err error
var errCode int64
// For some reason, the error responses are not JSON
if rpcErr != nil {
s.log.Errorf("Got error: %s", rpcErr.Error())
errParts := strings.SplitN(rpcErr.Error(), ":", 2)
errCode, err = strconv.ParseInt(errParts[0], 10, 32)
//Check to see if we are requesting a height the zcashd doesn't have yet
if err == nil && errCode == -8 {
return nil
}
return nil
}
var txids []string
err = json.Unmarshal(result, &txids)
if err != nil {
s.log.Errorf("Got error: %s", err.Error())
return nil
}
timeout, cancel := context.WithTimeout(resp.Context(), 30*time.Second)
defer cancel()
for _, txidstr := range txids {
txid, _ := hex.DecodeString(txidstr)
// Txid is read as a string, which is in big-endian order. But when converting
// to bytes, it should be little-endian
for left, right := 0, len(txid)-1; left < right; left, right = left+1, right-1 {
txid[left], txid[right] = txid[right], txid[left]
}
tx, err := s.GetTransaction(timeout, &walletrpc.TxFilter{Hash: txid})
if err != nil {
s.log.Errorf("Got error: %s", err.Error())
return nil
}
resp.Send(tx)
}
return nil
}
func (s *SqlStreamer) GetUtxos(address *walletrpc.TransparentAddress, resp walletrpc.CompactTxStreamer_GetUtxosServer) error {
utxos, _ := s.client.GetAddressUtxos(address.Address)

194
walletrpc/service.pb.go
View File

@ -424,6 +424,53 @@ func (m *TransparentAddress) GetAddress() string {
return ""
}
type TransparentAddressBlockFilter struct {
Address string `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
Range *BlockRange `protobuf:"bytes,2,opt,name=range,proto3" json:"range,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *TransparentAddressBlockFilter) Reset() { *m = TransparentAddressBlockFilter{} }
func (m *TransparentAddressBlockFilter) String() string { return proto.CompactTextString(m) }
func (*TransparentAddressBlockFilter) ProtoMessage() {}
func (*TransparentAddressBlockFilter) Descriptor() ([]byte, []int) {
return fileDescriptor_a0b84a42fa06f626, []int{9}
}
func (m *TransparentAddressBlockFilter) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_TransparentAddressBlockFilter.Unmarshal(m, b)
}
func (m *TransparentAddressBlockFilter) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_TransparentAddressBlockFilter.Marshal(b, m, deterministic)
}
func (m *TransparentAddressBlockFilter) XXX_Merge(src proto.Message) {
xxx_messageInfo_TransparentAddressBlockFilter.Merge(m, src)
}
func (m *TransparentAddressBlockFilter) XXX_Size() int {
return xxx_messageInfo_TransparentAddressBlockFilter.Size(m)
}
func (m *TransparentAddressBlockFilter) XXX_DiscardUnknown() {
xxx_messageInfo_TransparentAddressBlockFilter.DiscardUnknown(m)
}
var xxx_messageInfo_TransparentAddressBlockFilter proto.InternalMessageInfo
func (m *TransparentAddressBlockFilter) GetAddress() string {
if m != nil {
return m.Address
}
return ""
}
func (m *TransparentAddressBlockFilter) GetRange() *BlockRange {
if m != nil {
return m.Range
}
return nil
}
type Utxo struct {
Address *TransparentAddress `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
Txid []byte `protobuf:"bytes,2,opt,name=txid,proto3" json:"txid,omitempty"`
@ -440,7 +487,7 @@ func (m *Utxo) Reset() { *m = Utxo{} }
func (m *Utxo) String() string { return proto.CompactTextString(m) }
func (*Utxo) ProtoMessage() {}
func (*Utxo) Descriptor() ([]byte, []int) {
return fileDescriptor_a0b84a42fa06f626, []int{9}
return fileDescriptor_a0b84a42fa06f626, []int{10}
}
func (m *Utxo) XXX_Unmarshal(b []byte) error {
@ -513,51 +560,55 @@ func init() {
proto.RegisterType((*Empty)(nil), "cash.z.wallet.sdk.rpc.Empty")
proto.RegisterType((*LightdInfo)(nil), "cash.z.wallet.sdk.rpc.LightdInfo")
proto.RegisterType((*TransparentAddress)(nil), "cash.z.wallet.sdk.rpc.TransparentAddress")
proto.RegisterType((*TransparentAddressBlockFilter)(nil), "cash.z.wallet.sdk.rpc.TransparentAddressBlockFilter")
proto.RegisterType((*Utxo)(nil), "cash.z.wallet.sdk.rpc.Utxo")
}
func init() { proto.RegisterFile("service.proto", fileDescriptor_a0b84a42fa06f626) }
var fileDescriptor_a0b84a42fa06f626 = []byte{
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}
// Reference imports to suppress errors if they are not otherwise used.
@ -581,6 +632,7 @@ type CompactTxStreamerClient interface {
SendTransaction(ctx context.Context, in *RawTransaction, opts ...grpc.CallOption) (*SendResponse, error)
// t-Address support
GetUtxos(ctx context.Context, in *TransparentAddress, opts ...grpc.CallOption) (CompactTxStreamer_GetUtxosClient, error)
GetAddressTxids(ctx context.Context, in *TransparentAddressBlockFilter, opts ...grpc.CallOption) (CompactTxStreamer_GetAddressTxidsClient, error)
// Misc
GetLightdInfo(ctx context.Context, in *Empty, opts ...grpc.CallOption) (*LightdInfo, error)
}
@ -693,6 +745,38 @@ func (x *compactTxStreamerGetUtxosClient) Recv() (*Utxo, error) {
return m, nil
}
func (c *compactTxStreamerClient) GetAddressTxids(ctx context.Context, in *TransparentAddressBlockFilter, opts ...grpc.CallOption) (CompactTxStreamer_GetAddressTxidsClient, error) {
stream, err := c.cc.NewStream(ctx, &_CompactTxStreamer_serviceDesc.Streams[2], "/cash.z.wallet.sdk.rpc.CompactTxStreamer/GetAddressTxids", opts...)
if err != nil {
return nil, err
}
x := &compactTxStreamerGetAddressTxidsClient{stream}
if err := x.ClientStream.SendMsg(in); err != nil {
return nil, err
}
if err := x.ClientStream.CloseSend(); err != nil {
return nil, err
}
return x, nil
}
type CompactTxStreamer_GetAddressTxidsClient interface {
Recv() (*RawTransaction, error)
grpc.ClientStream
}
type compactTxStreamerGetAddressTxidsClient struct {
grpc.ClientStream
}
func (x *compactTxStreamerGetAddressTxidsClient) Recv() (*RawTransaction, error) {
m := new(RawTransaction)
if err := x.ClientStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
func (c *compactTxStreamerClient) GetLightdInfo(ctx context.Context, in *Empty, opts ...grpc.CallOption) (*LightdInfo, error) {
out := new(LightdInfo)
err := c.cc.Invoke(ctx, "/cash.z.wallet.sdk.rpc.CompactTxStreamer/GetLightdInfo", in, out, opts...)
@ -713,6 +797,7 @@ type CompactTxStreamerServer interface {
SendTransaction(context.Context, *RawTransaction) (*SendResponse, error)
// t-Address support
GetUtxos(*TransparentAddress, CompactTxStreamer_GetUtxosServer) error
GetAddressTxids(*TransparentAddressBlockFilter, CompactTxStreamer_GetAddressTxidsServer) error
// Misc
GetLightdInfo(context.Context, *Empty) (*LightdInfo, error)
}
@ -739,6 +824,9 @@ func (*UnimplementedCompactTxStreamerServer) SendTransaction(ctx context.Context
func (*UnimplementedCompactTxStreamerServer) GetUtxos(req *TransparentAddress, srv CompactTxStreamer_GetUtxosServer) error {
return status.Errorf(codes.Unimplemented, "method GetUtxos not implemented")
}
func (*UnimplementedCompactTxStreamerServer) GetAddressTxids(req *TransparentAddressBlockFilter, srv CompactTxStreamer_GetAddressTxidsServer) error {
return status.Errorf(codes.Unimplemented, "method GetAddressTxids not implemented")
}
func (*UnimplementedCompactTxStreamerServer) GetLightdInfo(ctx context.Context, req *Empty) (*LightdInfo, error) {
return nil, status.Errorf(codes.Unimplemented, "method GetLightdInfo not implemented")
}
@ -861,6 +949,27 @@ func (x *compactTxStreamerGetUtxosServer) Send(m *Utxo) error {
return x.ServerStream.SendMsg(m)
}
func _CompactTxStreamer_GetAddressTxids_Handler(srv interface{}, stream grpc.ServerStream) error {
m := new(TransparentAddressBlockFilter)
if err := stream.RecvMsg(m); err != nil {
return err
}
return srv.(CompactTxStreamerServer).GetAddressTxids(m, &compactTxStreamerGetAddressTxidsServer{stream})
}
type CompactTxStreamer_GetAddressTxidsServer interface {
Send(*RawTransaction) error
grpc.ServerStream
}
type compactTxStreamerGetAddressTxidsServer struct {
grpc.ServerStream
}
func (x *compactTxStreamerGetAddressTxidsServer) Send(m *RawTransaction) error {
return x.ServerStream.SendMsg(m)
}
func _CompactTxStreamer_GetLightdInfo_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(Empty)
if err := dec(in); err != nil {
@ -915,6 +1024,11 @@ var _CompactTxStreamer_serviceDesc = grpc.ServiceDesc{
Handler: _CompactTxStreamer_GetUtxos_Handler,
ServerStreams: true,
},
{
StreamName: "GetAddressTxids",
Handler: _CompactTxStreamer_GetAddressTxids_Handler,
ServerStreams: true,
},
},
Metadata: "service.proto",
}

6
walletrpc/service.proto
View File

@ -52,6 +52,11 @@ message TransparentAddress {
string address = 1;
}
message TransparentAddressBlockFilter {
string address = 1;
BlockRange range = 2;
}
message Utxo {
TransparentAddress address = 1;
bytes txid = 2;
@ -73,6 +78,7 @@ service CompactTxStreamer {
// t-Address support
rpc GetUtxos(TransparentAddress) returns (stream Utxo) {}
rpc GetAddressTxids(TransparentAddressBlockFilter) returns (stream RawTransaction) {}
// Misc
rpc GetLightdInfo(Empty) returns (LightdInfo) {}