aboutsummaryrefslogtreecommitdiffstats
path: root/rpc/util.go
diff options
context:
space:
mode:
Diffstat (limited to 'rpc/util.go')
-rw-r--r--rpc/util.go102
1 files changed, 102 insertions, 0 deletions
diff --git a/rpc/util.go b/rpc/util.go
new file mode 100644
index 000000000..509d9a17d
--- /dev/null
+++ b/rpc/util.go
@@ -0,0 +1,102 @@
+/*
+ This file is part of go-ethereum
+
+ go-ethereum is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ go-ethereum 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+*/
+package rpc
+
+import (
+ "encoding/json"
+ "io"
+ "net/http"
+
+ "github.com/ethereum/go-ethereum/ethutil"
+ "github.com/ethereum/go-ethereum/logger"
+ "github.com/ethereum/go-ethereum/state"
+)
+
+var rpclogger = logger.NewLogger("RPC")
+
+type JsonWrapper struct{}
+
+func (self JsonWrapper) Send(writer io.Writer, v interface{}) (n int, err error) {
+ var payload []byte
+ payload, err = json.Marshal(v)
+ if err != nil {
+ rpclogger.Fatalln("Error marshalling JSON", err)
+ return 0, err
+ }
+ rpclogger.DebugDetailf("Sending payload: %s", payload)
+
+ return writer.Write(payload)
+}
+
+func (self JsonWrapper) ParseRequestBody(req *http.Request) (RpcRequest, error) {
+ var reqParsed RpcRequest
+
+ // Convert JSON to native types
+ d := json.NewDecoder(req.Body)
+ // d.UseNumber()
+ defer req.Body.Close()
+ err := d.Decode(&reqParsed)
+
+ if err != nil {
+ rpclogger.Errorln("Error decoding JSON: ", err)
+ return reqParsed, err
+ }
+ rpclogger.DebugDetailf("Parsed request: %s", reqParsed)
+
+ return reqParsed, nil
+}
+
+func toHex(b []byte) string {
+ return "0x" + ethutil.Bytes2Hex(b)
+}
+func fromHex(s string) []byte {
+ if len(s) > 1 {
+ if s[0:2] == "0x" {
+ s = s[2:]
+ }
+ return ethutil.Hex2Bytes(s)
+ }
+ return nil
+}
+
+type RpcServer interface {
+ Start()
+ Stop()
+}
+
+type Log struct {
+ Address string `json:"address"`
+ Topics []string `json:"topics"`
+ Data string `json:"data"`
+}
+
+func toLogs(logs state.Logs) (ls []Log) {
+ ls = make([]Log, len(logs))
+
+ for i, log := range logs {
+ var l Log
+ l.Topics = make([]string, len(log.Topics()))
+ l.Address = toHex(log.Address())
+ l.Data = toHex(log.Data())
+ for j, topic := range log.Topics() {
+ l.Topics[j] = toHex(topic)
+ }
+ ls[i] = l
+ }
+
+ return
+}