removed old rpc structure and added new inproc api client

rpc/http.go

@@ -1,163 +0,0 @@
-package rpc
-
-import (
-	"encoding/json"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"strings"
-
-	"github.com/ethereum/go-ethereum/logger"
-	"github.com/ethereum/go-ethereum/logger/glog"
-	"github.com/ethereum/go-ethereum/xeth"
-	"github.com/rs/cors"
-)
-
-var rpclistener *stoppableTCPListener
-
-const (
-	jsonrpcver       = "2.0"
-	maxSizeReqLength = 1024 * 1024 // 1MB
-)
-
-func Start(pipe *xeth.XEth, config RpcConfig) error {
-	if rpclistener != nil {
-		if fmt.Sprintf("%s:%d", config.ListenAddress, config.ListenPort) != rpclistener.Addr().String() {
-			return fmt.Errorf("RPC service already running on %s ", rpclistener.Addr().String())
-		}
-		return nil // RPC service already running on given host/port
-	}
-
-	l, err := newStoppableTCPListener(fmt.Sprintf("%s:%d", config.ListenAddress, config.ListenPort))
-	if err != nil {
-		glog.V(logger.Error).Infof("Can't listen on %s:%d: %v", config.ListenAddress, config.ListenPort, err)
-		return err
-	}
-	rpclistener = l
-
-	var handler http.Handler
-	if len(config.CorsDomain) > 0 {
-		var opts cors.Options
-		opts.AllowedMethods = []string{"POST"}
-		opts.AllowedOrigins = strings.Split(config.CorsDomain, " ")
-
-		c := cors.New(opts)
-		handler = newStoppableHandler(c.Handler(JSONRPC(pipe)), l.stop)
-	} else {
-		handler = newStoppableHandler(JSONRPC(pipe), l.stop)
-	}
-
-	go http.Serve(l, handler)
-
-	return nil
-}
-
-func Stop() error {
-	if rpclistener != nil {
-		rpclistener.Stop()
-		rpclistener = nil
-	}
-
-	return nil
-}
-
-// JSONRPC returns a handler that implements the Ethereum JSON-RPC API.
-func JSONRPC(pipe *xeth.XEth) http.Handler {
-	api := NewEthereumApi(pipe)
-
-	return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
-		w.Header().Set("Content-Type", "application/json")
-
-		// Limit request size to resist DoS
-		if req.ContentLength > maxSizeReqLength {
-			jsonerr := &RpcErrorObject{-32700, "Request too large"}
-			send(w, &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: nil, Error: jsonerr})
-			return
-		}
-
-		// Read request body
-		defer req.Body.Close()
-		body, err := ioutil.ReadAll(req.Body)
-		if err != nil {
-			jsonerr := &RpcErrorObject{-32700, "Could not read request body"}
-			send(w, &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: nil, Error: jsonerr})
-		}
-
-		// Try to parse the request as a single
-		var reqSingle RpcRequest
-		if err := json.Unmarshal(body, &reqSingle); err == nil {
-			response := RpcResponse(api, &reqSingle)
-			if reqSingle.Id != nil {
-				send(w, &response)
-			}
-			return
-		}
-
-		// Try to parse the request to batch
-		var reqBatch []RpcRequest
-		if err := json.Unmarshal(body, &reqBatch); err == nil {
-			// Build response batch
-			resBatch := make([]*interface{}, len(reqBatch))
-			resCount := 0
-
-			for i, request := range reqBatch {
-				response := RpcResponse(api, &request)
-				// this leaves nil entries in the response batch for later removal
-				if request.Id != nil {
-					resBatch[i] = response
-					resCount = resCount + 1
-				}
-			}
-
-			// make response omitting nil entries
-			respBatchComp := make([]*interface{}, resCount)
-			for _, v := range resBatch {
-				if v != nil {
-					respBatchComp[len(respBatchComp)-resCount] = v
-					resCount = resCount - 1
-				}
-			}
-
-			send(w, respBatchComp)
-			return
-		}
-
-		// Not a batch or single request, error
-		jsonerr := &RpcErrorObject{-32600, "Could not decode request"}
-		send(w, &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: nil, Error: jsonerr})
-	})
-}
-
-func RpcResponse(api *EthereumApi, request *RpcRequest) *interface{} {
-	var reply, response interface{}
-	reserr := api.GetRequestReply(request, &reply)
-	switch reserr.(type) {
-	case nil:
-		response = &RpcSuccessResponse{Jsonrpc: jsonrpcver, Id: request.Id, Result: reply}
-	case *NotImplementedError, *NotAvailableError:
-		jsonerr := &RpcErrorObject{-32601, reserr.Error()}
-		response = &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: request.Id, Error: jsonerr}
-	case *DecodeParamError, *InsufficientParamsError, *ValidationError, *InvalidTypeError:
-		jsonerr := &RpcErrorObject{-32602, reserr.Error()}
-		response = &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: request.Id, Error: jsonerr}
-	default:
-		jsonerr := &RpcErrorObject{-32603, reserr.Error()}
-		response = &RpcErrorResponse{Jsonrpc: jsonrpcver, Id: request.Id, Error: jsonerr}
-	}
-
-	glog.V(logger.Detail).Infof("Generated response: %T %s", response, response)
-	return &response
-}
-
-func send(writer io.Writer, v interface{}) (n int, err error) {
-	var payload []byte
-	payload, err = json.MarshalIndent(v, "", "\t")
-	if err != nil {
-		glog.V(logger.Error).Infoln("Error marshalling JSON", err)
-		return 0, err
-	}
-	glog.V(logger.Detail).Infof("Sending payload: %s", payload)
-
-	return writer.Write(payload)
-}