From f1a4a6e563ea72affe365d89513e5c83a35e4c28 Mon Sep 17 00:00:00 2001
From: Bas van Kervel <bas@ethdev.com>
Date: Wed, 24 Jun 2015 13:53:37 +0200
Subject: added eth.pendingTransactions

---
 rpc/api/eth.go      | 40 +++++++++++++++++++++++++++++++++++-----
 rpc/api/eth_args.go | 34 ++++++++++++++++++++++++++++++++++
 rpc/api/eth_js.go   |  8 ++++++++
 rpc/api/utils.go    |  3 ++-
 4 files changed, 79 insertions(+), 6 deletions(-)

(limited to 'rpc/api')

diff --git a/rpc/api/eth.go b/rpc/api/eth.go
index 0dff138c6..77c710fb0 100644
--- a/rpc/api/eth.go
+++ b/rpc/api/eth.go
@@ -6,9 +6,11 @@ import (
 	"math/big"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/rpc/codec"
 	"github.com/ethereum/go-ethereum/rpc/shared"
 	"github.com/ethereum/go-ethereum/xeth"
+	"gopkg.in/fatih/set.v0"
 )
 
 const (
@@ -18,9 +20,10 @@ const (
 // eth api provider
 // See https://github.com/ethereum/wiki/wiki/JSON-RPC
 type ethApi struct {
-	xeth    *xeth.XEth
-	methods map[string]ethhandler
-	codec   codec.ApiCoder
+	xeth     *xeth.XEth
+	ethereum *eth.Ethereum
+	methods  map[string]ethhandler
+	codec    codec.ApiCoder
 }
 
 // eth callback handler
@@ -71,12 +74,13 @@ var (
 		"eth_hashrate":                            (*ethApi).Hashrate,
 		"eth_getWork":                             (*ethApi).GetWork,
 		"eth_submitWork":                          (*ethApi).SubmitWork,
+		"eth_pendingTransactions":                 (*ethApi).PendingTransactions,
 	}
 )
 
 // create new ethApi instance
-func NewEthApi(xeth *xeth.XEth, codec codec.Codec) *ethApi {
-	return &ethApi{xeth, ethMapping, codec.New(nil)}
+func NewEthApi(xeth *xeth.XEth, eth *eth.Ethereum, codec codec.Codec) *ethApi {
+	return &ethApi{xeth, eth, ethMapping, codec.New(nil)}
 }
 
 // collection with supported methods
@@ -556,3 +560,29 @@ 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) PendingTransactions(req *shared.Request) (interface{}, error) {
+	txs := self.ethereum.TxPool().GetTransactions()
+
+	// grab the accounts from the account manager. This will help with determening which
+	// transactions should be returned.
+	accounts, err := self.ethereum.AccountManager().Accounts()
+	if err != nil {
+		return nil, err
+	}
+
+	// Add the accouns to a new set
+	accountSet := set.New()
+	for _, account := range accounts {
+		accountSet.Add(account.Address)
+	}
+
+	var ltxs []*tx
+	for _, tx := range txs {
+		if from, _ := tx.From(); accountSet.Has(from) {
+			ltxs = append(ltxs, newTx(tx))
+		}
+	}
+
+	return ltxs, nil
+}
diff --git a/rpc/api/eth_args.go b/rpc/api/eth_args.go
index bf8ffead6..39c003f66 100644
--- a/rpc/api/eth_args.go
+++ b/rpc/api/eth_args.go
@@ -5,8 +5,11 @@ import (
 	"fmt"
 	"math/big"
 
+	"strconv"
+
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/state"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/rpc/shared"
 )
 
@@ -858,3 +861,34 @@ func (args *SubmitWorkArgs) UnmarshalJSON(b []byte) (err error) {
 
 	return nil
 }
+
+type tx struct {
+	tx *types.Transaction
+
+	To       string
+	From     string
+	Nonce    string
+	Value    string
+	Data     string
+	GasLimit string
+	GasPrice string
+}
+
+func newTx(t *types.Transaction) *tx {
+	from, _ := t.From()
+	var to string
+	if t := t.To(); t != nil {
+		to = t.Hex()
+	}
+
+	return &tx{
+		tx:       t,
+		To:       to,
+		From:     from.Hex(),
+		Value:    t.Amount.String(),
+		Nonce:    strconv.Itoa(int(t.Nonce())),
+		Data:     "0x" + common.Bytes2Hex(t.Data()),
+		GasLimit: t.GasLimit.String(),
+		GasPrice: t.GasPrice().String(),
+	}
+}
diff --git a/rpc/api/eth_js.go b/rpc/api/eth_js.go
index e1268eb76..8d0fe8f0a 100644
--- a/rpc/api/eth_js.go
+++ b/rpc/api/eth_js.go
@@ -15,6 +15,14 @@ web3._extend({
 			inputFormatter: [web3._extend.formatters.formatInputString,web3._extend.formatters.formatInputString],
 			outputFormatter: web3._extend.formatters.formatOutputString
 		})
+	],
+	properties:
+	[
+		new web3._extend.Property({
+			name: 'pendingTransactions',
+			getter: 'eth_pendingTransactions',
+			outputFormatter: function(obj) { return obj; }
+		})
 	]
 });
 `
diff --git a/rpc/api/utils.go b/rpc/api/utils.go
index 6e4835de6..3d46f78d3 100644
--- a/rpc/api/utils.go
+++ b/rpc/api/utils.go
@@ -84,6 +84,7 @@ var (
 			"hashrate",
 			"getWork",
 			"submitWork",
+			"pendingTransactions",
 		},
 		"miner": []string{
 			"hashrate",
@@ -149,7 +150,7 @@ func ParseApiString(apistr string, codec codec.Codec, xeth *xeth.XEth, eth *eth.
 		case shared.DbApiName:
 			apis[i] = NewDbApi(xeth, eth, codec)
 		case shared.EthApiName:
-			apis[i] = NewEthApi(xeth, codec)
+			apis[i] = NewEthApi(xeth, eth, codec)
 		case shared.MinerApiName:
 			apis[i] = NewMinerApi(eth, codec)
 		case shared.NetApiName:
-- 
cgit