Merge ethereum/poc-9 into accounts-integration

Conflicts:
	cmd/utils/cmd.go
	cmd/utils/flags.go
	core/manager.go
	eth/backend.go
	rpc/http/server.go
	xeth/xeth.go

2 files changed, 12 insertions, 15 deletions

diff --git a/rpc/api.go b/rpc/api.go
index c3aa7186b..d6854bbab 100644
--- a/rpc/api.go
+++ b/rpc/api.go
@@ -9,7 +9,6 @@ For each request type, define the following:
 package rpc
 
 import (
-	"fmt"
 	"math/big"
 	"path"
 	"strings"
@@ -24,7 +23,6 @@ import (
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/event/filter"
 	"github.com/ethereum/go-ethereum/state"
-	"github.com/ethereum/go-ethereum/ui"
 	"github.com/ethereum/go-ethereum/xeth"
 )
 
@@ -84,7 +82,7 @@ func (self *EthereumApi) setStateByBlockNumber(num int64) {
 	block = chain.GetBlockByNumber(uint64(num))
 
 	if block != nil {
-		self.useState(state.New(block.Root(), self.xeth().Backend().Db()))
+		self.useState(state.New(block.Root(), self.xeth().Backend().StateDb()))
 	} else {
 		self.useState(chain.State())
 	}
@@ -702,14 +700,3 @@ func (self *EthereumApi) useState(statedb *state.StateDB) {
 
 	self.eth = self.eth.UseState(statedb)
 }
-
-func t(f ui.Frontend) {
-	// Call the password dialog
-	ret, err := f.Call("PasswordDialog")
-	if err != nil {
-		fmt.Println(err)
-	}
-	// Get the first argument
-	t, _ := ret.Get(0)
-	fmt.Println("return:", t)
-}
diff --git a/rpc/http.go b/rpc/http.go
index 44e2ad6ab..857cf3221 100644
--- a/rpc/http.go
+++ b/rpc/http.go
@@ -9,10 +9,14 @@ import (
 
 var rpchttplogger = logger.NewLogger("RPC-HTTP")
 
+const (
+	jsonrpcver       = "2.0"
+	maxSizeReqLength = 1024 * 1024 // 1MB
+)
+
 // JSONRPC returns a handler that implements the Ethereum JSON-RPC API.
 func JSONRPC(pipe *xeth.XEth, dataDir string) http.Handler {
 	var json JsonWrapper
-	const jsonrpcver = "2.0"
 	api := NewEthereumApi(pipe, dataDir)
 
 	return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
@@ -20,6 +24,12 @@ func JSONRPC(pipe *xeth.XEth, dataDir string) http.Handler {
 
 		rpchttplogger.DebugDetailln("Handling request")
 
+		if req.ContentLength > maxSizeReqLength {
+			jsonerr := &RpcErrorObject{-32700, "Error: Request too large"}
+			json.Send(w, &RpcErrorResponse{JsonRpc: jsonrpcver, ID: nil, Error: jsonerr})
+			return
+		}
+
 		reqParsed, reqerr := json.ParseRequestBody(req)
 		if reqerr != nil {
 			jsonerr := &RpcErrorObject{-32700, "Error: Could not parse request"}