added net API

rpc/api/api.go

@@ -4,12 +4,13 @@ import "github.com/ethereum/go-ethereum/rpc/shared"
 
 const (
 	// List with all API's which are offered over the IPC interface by default
-	DefaultIpcApis = "eth,web3,miner"
+	DefaultIpcApis = "eth,miner,net,web3"
 
-	EthApiName = "eth"
+	EthApiName    = "eth"
 	MergedApiName = "merged"
-	MinerApiName = "miner"
-	Web3ApiName = "web3"
+	MinerApiName  = "miner"
+	NetApiName    = "net"
+	Web3ApiName   = "web3"
 )
 
 // Ethereum RPC API interface

rpc/api/mergedapi.go

@@ -4,7 +4,7 @@ import "github.com/ethereum/go-ethereum/rpc/shared"
 
 // combines multiple API's
 type mergedApi struct {
-	apis []string
+	apis    []string
 	methods map[string]EthereumApi
 }
 
@@ -48,7 +48,7 @@ func (self *mergedApi) Name() string {
 }
 
 func (self *mergedApi) handle(req *shared.Request) (interface{}, error) {
-	if req.Method == "support_apis" {	// provided API's
+	if req.Method == "support_apis" { // provided API's
 		return self.apis, nil
 	}
 

rpc/api/miner.go

@@ -13,7 +13,7 @@ const (
 )
 
 var (
-// mapping between methods and handlers
+	// mapping between methods and handlers
 	MinerMapping = map[string]minerhandler{
 		"miner_hashrate":     (*miner).Hashrate,
 		"miner_makeDAG":      (*miner).MakeDAG,

rpc/api/net.go

@@ -0,0 +1,81 @@
+package api
+
+import (
+	"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"
+)
+
+var (
+	// mapping between methods and handlers
+	netMapping = map[string]nethandler{
+		"net_id":        (*net).NetworkVersion,
+		"net_peerCount": (*net).PeerCount,
+		"net_listening": (*net).IsListening,
+		"net_peers":     (*net).Peers,
+	}
+)
+
+// net callback handler
+type nethandler func(*net, *shared.Request) (interface{}, error)
+
+// net api provider
+type net struct {
+	xeth     *xeth.XEth
+	ethereum *eth.Ethereum
+	methods  map[string]nethandler
+	codec    codec.ApiCoder
+}
+
+// create a new net api instance
+func NewNetApi(xeth *xeth.XEth, eth *eth.Ethereum, coder codec.Codec) *net {
+	return &net{
+		xeth:     xeth,
+		ethereum: eth,
+		methods:  netMapping,
+		codec:    coder.New(nil),
+	}
+}
+
+// collection with supported methods
+func (self *net) Methods() []string {
+	methods := make([]string, len(self.methods))
+	i := 0
+	for k := range self.methods {
+		methods[i] = k
+		i++
+	}
+	return methods
+}
+
+// Execute given request
+func (self *net) Execute(req *shared.Request) (interface{}, error) {
+	if callback, ok := self.methods[req.Method]; ok {
+		return callback(self, req)
+	}
+
+	return nil, shared.NewNotImplementedError(req.Method)
+}
+
+func (self *net) Name() string {
+	return NetApiName
+}
+
+// Network version
+func (self *net) NetworkVersion(req *shared.Request) (interface{}, error) {
+	return self.xeth.NetworkVersion(), nil
+}
+
+// Number of connected peers
+func (self *net) PeerCount(req *shared.Request) (interface{}, error) {
+	return self.xeth.PeerCount(), nil
+}
+
+func (self *net) IsListening(req *shared.Request) (interface{}, error) {
+	return self.xeth.IsListening(), nil
+}
+
+func (self *net) Peers(req *shared.Request) (interface{}, error) {
+	return self.ethereum.PeersInfo(), nil
+}

rpc/api/net_js.go

@@ -0,0 +1,44 @@
+package api
+
+const Net_JS = `
+web3.extend({
+	property: 'network',
+	methods:
+	[
+		new web3.extend.Method({
+			name: 'id',
+			call: 'net_id',
+			params: 0,
+			inputFormatter: [],
+			outputFormatter: web3.extend.formatters.formatOutputString
+		}),
+		new web3.extend.Method({
+			name: 'getPeerCount',
+			call: 'net_peerCount',
+			params: 0,
+			inputFormatter: [],
+			outputFormatter: web3.extend.formatters.formatOutputString
+		}),
+		new web3.extend.Method({
+			name: 'peers',
+			call: 'net_peers',
+			params: 0,
+			inputFormatter: [],
+			outputFormatter: function(obj) { return obj; }
+		})
+	],
+	properties:
+	[
+		new web3.extend.Property({
+			name: 'listening',
+			getter: 'net_listening',
+			outputFormatter: web3.extend.formatters.formatOutputBool
+		}),
+		new web3.extend.Property({
+			name: 'peerCount',
+			getter: 'net_peerCount',
+			outputFormatter: web3.extend.utils.toDecimal
+		})
+	]
+});
+`

rpc/api/utils.go

@@ -25,6 +25,8 @@ func ParseApiString(apistr string, codec codec.Codec, xeth *xeth.XEth, eth *eth.
 			apis[i] = NewEthApi(xeth, codec)
 		case MinerApiName:
 			apis[i] = NewMinerApi(eth, codec)
+		case NetApiName:
+			apis[i] = NewNetApi(xeth, eth, codec)
 		case Web3ApiName:
 			apis[i] = NewWeb3(xeth, codec)
 		default:
@@ -39,6 +41,8 @@ func Javascript(name string) string {
 	switch strings.ToLower(strings.TrimSpace(name)) {
 	case MinerApiName:
 		return Miner_JS
+	case NetApiName:
+		return Net_JS
 	}
 
 	return ""

rpc/api/web3.go

@@ -13,7 +13,7 @@ const (
 )
 
 var (
-// mapping between methods and handlers
+	// mapping between methods and handlers
 	Web3Mapping = map[string]web3handler{
 		"web3_sha3":          (*web3).Sha3,
 		"web3_clientVersion": (*web3).ClientVersion,