rpc, whisper, xeth: polish whisper RPC interface

xeth/whisper_message.go

@@ -0,0 +1,31 @@
+// Contains the external API representation of a whisper message.
+
+package xeth
+
+import (
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/whisper"
+)
+
+// WhisperMessage is the external API representation of a whisper.Message.
+type WhisperMessage struct {
+	ref *whisper.Message
+
+	Payload string `json:"payload"`
+	To      string `json:"to"`
+	From    string `json:"from"`
+	Sent    int64  `json:"sent"`
+}
+
+// NewWhisperMessage converts an internal message into an API version.
+func NewWhisperMessage(message *whisper.Message) WhisperMessage {
+	return WhisperMessage{
+		ref: message,
+
+		Payload: common.ToHex(message.Payload),
+		From:    common.ToHex(crypto.FromECDSAPub(message.Recover())),
+		To:      common.ToHex(crypto.FromECDSAPub(message.To)),
+		Sent:    message.Sent,
+	}
+}