WIP: Implement gRPC

btcrpc/generate-protos.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+VERSION_PROTOC="libprotoc 3.5.1"
+
+# Make sure the correct version of protoc is installed.
+LOCAL_PROTOC="$(protoc --version)"
+if [ "$LOCAL_PROTOC" != "$VERSION_PROTOC" ]
+then
+	echo "Wrong protoc version. Got $LOCAL_PROTOC; need $VERSION_PROTOC."
+	exit 1
+fi
+
+#TODO add version check for 
+# - protoc-gen-go
+# - protoc-gen-grpc-gateway
+
+# Generate the protos.
+protoc -I/usr/local/include -I. \
+       -I$GOPATH/src \
+       --go_out=plugins=grpc:. \
+       btcrpc.proto
+

btcrpc/rpcutils.go

@@ -0,0 +1,46 @@
+package btcrpc
+
+import (
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/btcsuite/btcd/wire"
+	"github.com/btcsuite/btcutil"
+)
+
+// NewBlockLocatorHash creates a new BlockLocator using the given block hash.
+func NewBlockLocatorHash(hash *chainhash.Hash) *BlockLocator {
+	return &BlockLocator{
+		Locator: &BlockLocator_Hash{
+			Hash: hash[:],
+		},
+	}
+}
+
+// NewBlockLocatorHeight creates a new BlockLocator using the given block height.
+func NewBlockLocatorHeight(height int32) *BlockLocator {
+	return &BlockLocator{
+		Locator: &BlockLocator_Height{
+			Height: height,
+		},
+	}
+}
+
+// NewTransactionFilter creates a new transaction filter with the given addresses
+// and outpoints.
+func NewTransactionFilter(addresses []btcutil.Address, outpoints []wire.OutPoint) *TransactionFilter {
+	f := TransactionFilter{
+		Addresses: make([]string, len(addresses)),
+		Outpoints: make([]*Transaction_Input_Outpoint, len(outpoints)),
+	}
+
+	for i, addr := range addresses {
+		f.Addresses[i] = addr.EncodeAddress()
+	}
+	for i, op := range outpoints {
+		f.Outpoints[i] = &Transaction_Input_Outpoint{
+			Hash:  op.Hash[:],
+			Index: op.Index,
+		}
+	}
+
+	return &f
+}