From dc58568a25e54ea601aefb8e97f427cae0814612 Mon Sep 17 00:00:00 2001
From: Bas van Kervel <bas@ethdev.com>
Date: Wed, 24 Jun 2015 14:56:53 +0200
Subject: added eth.resend

---
 rpc/api/eth.go      | 18 ++++++++++++++++++
 rpc/api/eth_args.go | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 rpc/api/eth_js.go   |  7 +++++++
 rpc/api/utils.go    |  1 +
 4 files changed, 76 insertions(+)

diff --git a/rpc/api/eth.go b/rpc/api/eth.go
index 77c710fb0..2bd7e4cdb 100644
--- a/rpc/api/eth.go
+++ b/rpc/api/eth.go
@@ -6,6 +6,7 @@ import (
 	"math/big"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/rpc/codec"
 	"github.com/ethereum/go-ethereum/rpc/shared"
@@ -74,6 +75,7 @@ var (
 		"eth_hashrate":                            (*ethApi).Hashrate,
 		"eth_getWork":                             (*ethApi).GetWork,
 		"eth_submitWork":                          (*ethApi).SubmitWork,
+		"eth_resend":                              (*ethApi).Resend,
 		"eth_pendingTransactions":                 (*ethApi).PendingTransactions,
 	}
 )
@@ -561,6 +563,22 @@ func (self *ethApi) SubmitWork(req *shared.Request) (interface{}, error) {
 	return self.xeth.RemoteMining().SubmitWork(args.Nonce, common.HexToHash(args.Digest), common.HexToHash(args.Header)), nil
 }
 
+func (self *ethApi) Resend(req *shared.Request) (interface{}, error) {
+	args := new(ResendArgs)
+	if err := self.codec.Decode(req.Params, &args); err != nil {
+		return nil, shared.NewDecodeParamError(err.Error())
+	}
+
+	ret, err := self.xeth.Transact(args.Tx.From, args.Tx.To, args.Tx.Nonce, args.Tx.Value, args.GasLimit, args.GasPrice, args.Tx.Data)
+	if err != nil {
+		return nil, err
+	}
+
+	self.ethereum.TxPool().RemoveTransactions(types.Transactions{args.Tx.tx})
+
+	return ret, nil
+}
+
 func (self *ethApi) PendingTransactions(req *shared.Request) (interface{}, error) {
 	txs := self.ethereum.TxPool().GetTransactions()
 
diff --git a/rpc/api/eth_args.go b/rpc/api/eth_args.go
index 39c003f66..a75fdbdee 100644
--- a/rpc/api/eth_args.go
+++ b/rpc/api/eth_args.go
@@ -892,3 +892,53 @@ func newTx(t *types.Transaction) *tx {
 		GasPrice: t.GasPrice().String(),
 	}
 }
+
+type ResendArgs struct {
+	Tx       *tx
+	GasPrice string
+	GasLimit string
+}
+
+func (args *ResendArgs) UnmarshalJSON(b []byte) (err error) {
+	var obj []interface{}
+	if err = json.Unmarshal(b, &obj); err != nil {
+		return shared.NewDecodeParamError(err.Error())
+	}
+
+	if len(obj) < 1 {
+		return shared.NewInsufficientParamsError(len(obj), 1)
+	}
+
+	data, err := json.Marshal(obj[0])
+	if err != nil {
+		return shared.NewDecodeParamError("Unable to parse transaction object")
+	}
+
+	trans := new(tx)
+	err = json.Unmarshal(data, trans)
+	if err != nil {
+		return shared.NewDecodeParamError("Unable to parse transaction object.")
+	}
+
+	gasLimit, gasPrice := trans.GasLimit, trans.GasPrice
+
+	if len(obj) > 1 && obj[1] != nil {
+		if gp, ok := obj[1].(string); ok {
+			gasPrice = gp
+		} else {
+			return shared.NewInvalidTypeError("gasPrice", "not a string")
+		}
+	}
+	if len(obj) > 2 && obj[2] != nil {
+		if gl, ok := obj[2].(string); ok {
+			gasLimit = gl
+		} else {
+			return shared.NewInvalidTypeError("gasLimit", "not a string")
+		}
+	}
+	args.Tx = trans
+	args.GasPrice = gasPrice
+	args.GasLimit = gasLimit
+
+	return nil
+}
diff --git a/rpc/api/eth_js.go b/rpc/api/eth_js.go
index 8d0fe8f0a..4512cc147 100644
--- a/rpc/api/eth_js.go
+++ b/rpc/api/eth_js.go
@@ -14,6 +14,13 @@ web3._extend({
 			params: 2,
 			inputFormatter: [web3._extend.formatters.formatInputString,web3._extend.formatters.formatInputString],
 			outputFormatter: web3._extend.formatters.formatOutputString
+		}),
+		new web3._extend.Method({
+			name: 'resend',
+			call: 'eth_resend',
+			params: 3,
+			inputFormatter: [function(obj) { return obj; },web3._extend.formatters.formatInputString,web3._extend.formatters.formatInputString],
+			outputFormatter: web3._extend.formatters.formatOutputString
 		})
 	],
 	properties:
diff --git a/rpc/api/utils.go b/rpc/api/utils.go
index 3d46f78d3..e6a01d3d6 100644
--- a/rpc/api/utils.go
+++ b/rpc/api/utils.go
@@ -85,6 +85,7 @@ var (
 			"getWork",
 			"submitWork",
 			"pendingTransactions",
+			"resend",
 		},
 		"miner": []string{
 			"hashrate",
-- 
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