rpc: allow RPC requests on GET too

rpc/http.go

@@ -18,21 +18,19 @@ package rpc
 
 import (
 	"bufio"
-	"fmt"
-	"io"
-	"net"
-	"net/http"
-	"strconv"
-	"strings"
-	"time"
-
-	"errors"
-	"sync"
-
 	"bytes"
 	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
 	"io/ioutil"
+	"net"
+	"net/http"
 	"net/url"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
 
 	"github.com/ethereum/go-ethereum/logger"
 	"github.com/ethereum/go-ethereum/logger/glog"
@@ -57,8 +55,7 @@ var (
 type httpMessageStream struct {
 	conn             net.Conn          // TCP connection
 	rw               *bufio.ReadWriter // buffered where HTTP requests/responses are read/written from/to
-	currentReq       *http.Request     // pending request, codec can pass in a too small buffer for a single read
+	currentReq       *http.Request     // pending request, codec can pass in a too small buffer for a single read we need to keep track of the current requests if it was not read at once
-					   // we need to keep track of the current requests if it was not read at once
 	payloadBytesRead int64             // number of bytes which are read from the current request
 	allowedOrigins   *set.Set          // allowed CORS domains
 	origin           string            // origin of this connection/request
@@ -147,7 +144,7 @@ func (h *httpMessageStream) Read(buf []byte) (n int, err error) {
 			continue
 		}
 
-		if strings.EqualFold(h.currentReq.Method, "POST") {
+		if strings.EqualFold(h.currentReq.Method, "GET") || strings.EqualFold(h.currentReq.Method, "POST") {
 			n, err := h.currentReq.Body.Read(buf)
 			h.payloadBytesRead += int64(n)
 
@@ -164,12 +161,9 @@ func (h *httpMessageStream) Read(buf []byte) (n int, err error) {
 				h.currentReq = nil
 				h.payloadBytesRead = 0
 			}
-
 			// partial read of body
 			return n, err
 		}
-
-		h.currentReq = nil
 		return 0, fmt.Errorf("unsupported HTTP method '%s'", h.currentReq.Method)
 	}
 }