rpc: migrated the RPC insterface to a new reflection based RPC layer

1 files changed, 0 insertions, 166 deletions

diff --git a/rpc/useragent/remote_frontend.go b/rpc/useragent/remote_frontend.go
deleted file mode 100644
index 944ab287a..000000000
--- a/rpc/useragent/remote_frontend.go
+++ /dev/null
@@ -1,166 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package useragent
-
-import (
-	"encoding/json"
-	"fmt"
-	"net"
-
-	"github.com/ethereum/go-ethereum/accounts"
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/logger"
-	"github.com/ethereum/go-ethereum/logger/glog"
-	"github.com/ethereum/go-ethereum/rpc/shared"
-)
-
-// remoteFrontend implements xeth.Frontend and will communicate with an external
-// user agent over a connection
-type RemoteFrontend struct {
-	enabled bool
-	mgr     *accounts.Manager
-	d       *json.Decoder
-	e       *json.Encoder
-	n       int
-}
-
-// NewRemoteFrontend creates a new frontend which will interact with an user agent
-// over the given connection
-func NewRemoteFrontend(conn net.Conn, mgr *accounts.Manager) *RemoteFrontend {
-	return &RemoteFrontend{false, mgr, json.NewDecoder(conn), json.NewEncoder(conn), 0}
-}
-
-// Enable will enable user interaction
-func (fe *RemoteFrontend) Enable() {
-	fe.enabled = true
-}
-
-func (fe *RemoteFrontend) AskPassword() (string, bool) {
-	if !fe.enabled {
-		return "", false
-	}
-
-	err := fe.send(AskPasswordMethod)
-	if err != nil {
-		glog.V(logger.Error).Infof("Unable to send password request to agent - %v\n", err)
-		return "", false
-	}
-
-	passwdRes, err := fe.recv()
-	if err != nil {
-		glog.V(logger.Error).Infof("Unable to recv password response from agent - %v\n", err)
-		return "", false
-	}
-
-	if passwd, ok := passwdRes.Result.(string); ok {
-		return passwd, true
-	}
-
-	return "", false
-
-}
-
-// UnlockAccount asks the user agent for the user password and tries to unlock the account.
-// It will try 3 attempts before giving up.
-func (fe *RemoteFrontend) UnlockAccount(address []byte) bool {
-	if !fe.enabled {
-		return false
-	}
-
-	err := fe.send(AskPasswordMethod, common.Bytes2Hex(address))
-	if err != nil {
-		glog.V(logger.Error).Infof("Unable to send password request to agent - %v\n", err)
-		return false
-	}
-
-	passwdRes, err := fe.recv()
-	if err != nil {
-		glog.V(logger.Error).Infof("Unable to recv password response from agent - %v\n", err)
-		return false
-	}
-
-	if passwd, ok := passwdRes.Result.(string); ok {
-		err = fe.mgr.Unlock(common.BytesToAddress(address), passwd)
-	}
-
-	if err == nil {
-		return true
-	}
-
-	glog.V(logger.Debug).Infoln("3 invalid account unlock attempts")
-	return false
-}
-
-// ConfirmTransaction asks the user for approval
-func (fe *RemoteFrontend) ConfirmTransaction(tx string) bool {
-	if !fe.enabled {
-		return true // backwards compatibility
-	}
-
-	err := fe.send(ConfirmTransactionMethod, tx)
-	if err != nil {
-		glog.V(logger.Error).Infof("Unable to send tx confirmation request to agent - %v\n", err)
-		return false
-	}
-
-	confirmResponse, err := fe.recv()
-	if err != nil {
-		glog.V(logger.Error).Infof("Unable to recv tx confirmation response from agent - %v\n", err)
-		return false
-	}
-
-	if confirmed, ok := confirmResponse.Result.(bool); ok {
-		return confirmed
-	}
-
-	return false
-}
-
-// send request to the agent
-func (fe *RemoteFrontend) send(method string, params ...interface{}) error {
-	fe.n += 1
-
-	p, err := json.Marshal(params)
-	if err != nil {
-		glog.V(logger.Info).Infof("Unable to send agent request %v\n", err)
-		return err
-	}
-
-	req := shared.Request{
-		Method:  method,
-		Jsonrpc: shared.JsonRpcVersion,
-		Id:      fe.n,
-		Params:  p,
-	}
-
-	return fe.e.Encode(&req)
-}
-
-// recv user response from agent
-func (fe *RemoteFrontend) recv() (*shared.SuccessResponse, error) {
-	var res json.RawMessage
-	if err := fe.d.Decode(&res); err != nil {
-		return nil, err
-	}
-
-	var response shared.SuccessResponse
-	if err := json.Unmarshal(res, &response); err == nil {
-		return &response, nil
-	}
-
-	return nil, fmt.Errorf("Invalid user agent response")
-}