Add serpent compilation to RPC

rpc/message.go

@@ -201,6 +201,21 @@ func (req *RpcRequest) ToGetCodeAtArgs() (*GetCodeAtArgs, error) {
 	return args, nil
 }
 
+func (req *RpcRequest) ToCompileArgs() (string, error) {
+	if len(req.Params) < 1 {
+		return "", NewErrorResponse(ErrorArguments)
+	}
+
+	var args string
+	err := json.Unmarshal(req.Params[0], &args)
+	if err != nil {
+		return "", NewErrorResponse(ErrorDecodeArgs)
+	}
+
+	rpclogger.DebugDetailf("%T %v", args, args)
+	return args, nil
+}
+
 func (req *RpcRequest) ToFilterArgs() (*FilterOptions, error) {
 	if len(req.Params) < 1 {
 		return nil, NewErrorResponse(ErrorArguments)

rpc/packages.go

@@ -300,6 +300,21 @@ func (p *EthereumApi) GetCodeAt(args *GetCodeAtArgs, reply *interface{}) error {
 	return nil
 }
 
+func (p *EthereumApi) GetCompilers(reply *interface{}) error {
+	c := []string{"serpent"}
+	*reply = c
+	return nil
+}
+
+func (p *EthereumApi) CompileSerpent(script string, reply *interface{}) error {
+	res, err := ethutil.Compile(script, false)
+	if err != nil {
+		return err
+	}
+	*reply = res
+	return nil
+}
+
 func (p *EthereumApi) Sha3(args *Sha3Args, reply *interface{}) error {
 	*reply = toHex(crypto.Sha3(fromHex(args.Data)))
 	return nil
@@ -490,6 +505,14 @@ func (p *EthereumApi) GetRequestReply(req *RpcRequest, reply *interface{}) error
 			return err
 		}
 		return p.WatchTx(args, reply)
+	case "eth_compilers":
+		return p.GetCompilers(reply)
+	case "eth_serpent":
+		args, err := req.ToCompileArgs()
+		if err != nil {
+			return err
+		}
+		return p.CompileSerpent(args, reply)
 	case "web3_sha3":
 		args, err := req.ToSha3Args()
 		if err != nil {