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Merge pull request #2175 from karalabe/refactor-http-rpc

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cmd, common, node, rpc: move HTTP RPC into node, drop singleton aspect
This commit is contained in:
Péter Szilágyi 2016-02-13 14:53:48 +02:00
commit 770b29fd80
19 changed files with 660 additions and 546 deletions
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30
cmd/geth/js_test.go
View File

@ -37,7 +37,6 @@ import (
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/cmd/utils"
)
const (
@ -47,7 +46,7 @@ const (
testKey = "e6fab74a43941f82d89cb7faa408e227cdad3153c4720e540e855c19b15e6674"
testAddress = "0x8605cdbbdb6d264aa742e77020dcbc58fcdce182"
testBalance = "10000000000000000000"
// of empty string
// of empty string
testHash = "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"
)
@ -141,8 +140,10 @@ func testREPL(t *testing.T, config func(*eth.Config)) (string, *testjethre, *nod
stack.Service(&ethereum)
assetPath := filepath.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "cmd", "mist", "assets", "ext")
//client := comms.NewInProcClient(codec.JSON)
client := utils.NewInProcRPCClient(stack)
client, err := stack.Attach()
if err != nil {
t.Fatalf("failed to attach to node: %v", err)
}
tf := &testjethre{client: ethereum.HTTPClient()}
repl := newJSRE(stack, assetPath, "", client, false)
tf.jsre = repl
@ -152,9 +153,6 @@ func testREPL(t *testing.T, config func(*eth.Config)) (string, *testjethre, *nod
func TestNodeInfo(t *testing.T) {
t.Skip("broken after p2p update")
tmp, repl, ethereum := testJEthRE(t)
if err := ethereum.Start(); err != nil {
t.Fatalf("error starting ethereum: %v", err)
}
defer ethereum.Stop()
defer os.RemoveAll(tmp)
@ -167,8 +165,8 @@ func TestAccounts(t *testing.T) {
defer node.Stop()
defer os.RemoveAll(tmp)
checkEvalJSON(t, repl, `eth.accounts`, `["` + testAddress + `"]`)
checkEvalJSON(t, repl, `eth.coinbase`, `"` + testAddress + `"`)
checkEvalJSON(t, repl, `eth.accounts`, `["`+testAddress+`"]`)
checkEvalJSON(t, repl, `eth.coinbase`, `"`+testAddress+`"`)
val, err := repl.re.Run(`jeth.newAccount("password")`)
if err != nil {
t.Errorf("expected no error, got %v", err)
@ -178,7 +176,7 @@ func TestAccounts(t *testing.T) {
t.Errorf("address not hex: %q", addr)
}
checkEvalJSON(t, repl, `eth.accounts`, `["` + testAddress + `","` + addr + `"]`)
checkEvalJSON(t, repl, `eth.accounts`, `["`+testAddress+`","`+addr+`"]`)
}
@ -206,13 +204,13 @@ func TestBlockChain(t *testing.T) {
node.Service(&ethereum)
ethereum.BlockChain().Reset()
checkEvalJSON(t, repl, `admin.exportChain(` + tmpfileq + `)`, `true`)
checkEvalJSON(t, repl, `admin.exportChain(`+tmpfileq+`)`, `true`)
if _, err := os.Stat(tmpfile); err != nil {
t.Fatal(err)
}
// check import, verify that dumpBlock gives the same result.
checkEvalJSON(t, repl, `admin.importChain(` + tmpfileq + `)`, `true`)
checkEvalJSON(t, repl, `admin.importChain(`+tmpfileq+`)`, `true`)
checkEvalJSON(t, repl, `debug.dumpBlock(eth.blockNumber)`, beforeExport)
}
@ -240,7 +238,7 @@ func TestCheckTestAccountBalance(t *testing.T) {
defer os.RemoveAll(tmp)
repl.re.Run(`primary = "` + testAddress + `"`)
checkEvalJSON(t, repl, `eth.getBalance(primary)`, `"` + testBalance + `"`)
checkEvalJSON(t, repl, `eth.getBalance(primary)`, `"`+testBalance+`"`)
}
func TestSignature(t *testing.T) {
@ -315,10 +313,10 @@ func TestContract(t *testing.T) {
if err != nil {
t.Fatalf("%v", err)
}
if checkEvalJSON(t, repl, `primary = eth.accounts[0]`, `"` + testAddress + `"`) != nil {
if checkEvalJSON(t, repl, `primary = eth.accounts[0]`, `"`+testAddress+`"`) != nil {
return
}
if checkEvalJSON(t, repl, `source = "` + source + `"`, `"` + source + `"`) != nil {
if checkEvalJSON(t, repl, `source = "`+source+`"`, `"`+source+`"`) != nil {
return
}
@ -396,7 +394,7 @@ multiply7 = Multiply7.at(contractaddress);
var contentHash = `"0x86d2b7cf1e72e9a7a3f8d96601f0151742a2f780f1526414304fbe413dc7f9bd"`
if sol != nil && solcVersion != sol.Version() {
modContractInfo := versionRE.ReplaceAll(contractInfo, []byte(`"compilerVersion":"` + sol.Version() + `"`))
modContractInfo := versionRE.ReplaceAll(contractInfo, []byte(`"compilerVersion":"`+sol.Version()+`"`))
fmt.Printf("modified contractinfo:\n%s\n", modContractInfo)
contentHash = `"` + common.ToHex(crypto.Sha3([]byte(modContractInfo))) + `"`
}

24
cmd/geth/main.go
View File

@ -399,7 +399,7 @@ func attach(ctx *cli.Context) {
// attach to a running geth instance
client, err := utils.NewRemoteRPCClient(ctx)
if err != nil {
utils.Fatalf("Unable to attach to geth - %v", err)
utils.Fatalf("Unable to attach to geth: %v", err)
}
repl := newLightweightJSRE(
@ -425,8 +425,10 @@ func console(ctx *cli.Context) {
startNode(ctx, node)
// Attach to the newly started node, and either execute script or become interactive
client := utils.NewInProcRPCClient(node)
client, err := node.Attach()
if err != nil {
utils.Fatalf("Failed to attach to the inproc geth: %v", err)
}
repl := newJSRE(node,
ctx.GlobalString(utils.JSpathFlag.Name),
ctx.GlobalString(utils.RPCCORSDomainFlag.Name),
@ -449,8 +451,10 @@ func execScripts(ctx *cli.Context) {
startNode(ctx, node)
// Attach to the newly started node and execute the given scripts
client := utils.NewInProcRPCClient(node)
client, err := node.Attach()
if err != nil {
utils.Fatalf("Failed to attach to the inproc geth: %v", err)
}
repl := newJSRE(node,
ctx.GlobalString(utils.JSpathFlag.Name),
ctx.GlobalString(utils.RPCCORSDomainFlag.Name),
@ -503,16 +507,6 @@ func startNode(ctx *cli.Context, stack *node.Node) {
}
}
// Start auxiliary services if enabled
if ctx.GlobalBool(utils.RPCEnabledFlag.Name) {
if err := utils.StartRPC(stack, ctx); err != nil {
utils.Fatalf("Failed to start RPC: %v", err)
}
}
if ctx.GlobalBool(utils.WSEnabledFlag.Name) {
if err := utils.StartWS(stack, ctx); err != nil {
utils.Fatalf("Failed to start WS: %v", err)
}
}
if ctx.GlobalBool(utils.MiningEnabledFlag.Name) {
if err := ethereum.StartMining(ctx.GlobalInt(utils.MinerThreadsFlag.Name), ctx.GlobalString(utils.MiningGPUFlag.Name)); err != nil {
utils.Fatalf("Failed to start mining: %v", err)

2
cmd/geth/monitorcmd.go
View File

@ -36,7 +36,7 @@ import (
var (
monitorCommandAttachFlag = cli.StringFlag{
Name: "attach",
Value: "ipc:" + node.DefaultIpcEndpoint(),
Value: "ipc:" + node.DefaultIPCEndpoint(),
Usage: "API endpoint to attach to",
}
monitorCommandRowsFlag = cli.IntFlag{

40
cmd/gethrpctest/main.go
View File

@ -18,7 +18,6 @@
package main
import (
"errors"
"flag"
"io/ioutil"
"log"
@ -26,10 +25,10 @@ import (
"os/signal"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/tests"
@ -84,12 +83,6 @@ func main() {
}
log.Println("Initial test suite passed...")
// Start the RPC interface and wait until terminated
if err := StartRPC(stack); err != nil {
log.Fatalf("Failed to start RPC interface: %v", err)
}
log.Println("RPC Interface started, accepting requests...")
quit := make(chan os.Signal, 1)
signal.Notify(quit, os.Interrupt)
<-quit
@ -99,7 +92,16 @@ func main() {
// keystore path and initial pre-state.
func MakeSystemNode(keydir string, privkey string, test *tests.BlockTest) (*node.Node, error) {
// Create a networkless protocol stack
stack, err := node.New(&node.Config{IpcPath: node.DefaultIpcEndpoint(), NoDiscovery: true})
stack, err := node.New(&node.Config{
IPCPath: node.DefaultIPCEndpoint(),
HTTPHost: common.DefaultHTTPHost,
HTTPPort: common.DefaultHTTPPort,
HTTPModules: []string{"admin", "db", "eth", "debug", "miner", "net", "shh", "txpool", "personal", "web3"},
WSHost: common.DefaultWSHost,
WSPort: common.DefaultWSPort,
WSModules: []string{"admin", "db", "eth", "debug", "miner", "net", "shh", "txpool", "personal", "web3"},
NoDiscovery: true,
})
if err != nil {
return nil, err
}
@ -164,23 +166,3 @@ func RunTest(stack *node.Node, test *tests.BlockTest) error {
}
return nil
}
// StartRPC initializes an RPC interface to the given protocol stack.
func StartRPC(stack *node.Node) error {
/*
web3 := NewPublicWeb3API(stack)
server.RegisterName("web3", web3)
net := NewPublicNetAPI(stack.Server(), ethereum.NetVersion())
server.RegisterName("net", net)
*/
for _, api := range stack.APIs() {
if adminApi, ok := api.Service.(*node.PrivateAdminAPI); ok {
_, err := adminApi.StartRPC("127.0.0.1", 8545, "", "admin,db,eth,debug,miner,net,shh,txpool,personal,web3")
return err
}
}
glog.V(logger.Error).Infof("Unable to start RPC-HTTP interface, could not find admin API")
return errors.New("Unable to start RPC-HTTP interface")
}

121
cmd/utils/client.go
View File

@ -17,132 +17,14 @@
package utils
import (
"encoding/json"
"fmt"
"strings"
"github.com/codegangsta/cli"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/rpc"
)
// NewInProcRPCClient will start a new RPC server for the given node and returns a client to interact with it.
func NewInProcRPCClient(stack *node.Node) *inProcClient {
server := rpc.NewServer()
offered := stack.APIs()
for _, api := range offered {
server.RegisterName(api.Namespace, api.Service)
}
web3 := node.NewPublicWeb3API(stack)
server.RegisterName("web3", web3)
var ethereum *eth.Ethereum
if err := stack.Service(&ethereum); err == nil {
net := eth.NewPublicNetAPI(stack.Server(), ethereum.NetVersion())
server.RegisterName("net", net)
} else {
glog.V(logger.Warn).Infof("%v\n", err)
}
buf := &buf{
requests: make(chan []byte),
responses: make(chan []byte),
}
client := &inProcClient{
server: server,
buf: buf,
}
go func() {
server.ServeCodec(rpc.NewJSONCodec(client.buf))
}()
return client
}
// buf represents the connection between the RPC server and console
type buf struct {
readBuf []byte // store remaining request bytes after a partial read
requests chan []byte // list with raw serialized requests
responses chan []byte // list with raw serialized responses
}
// will read the next request in json format
func (b *buf) Read(p []byte) (int, error) {
// last read didn't read entire request, return remaining bytes
if len(b.readBuf) > 0 {
n := copy(p, b.readBuf)
if n < len(b.readBuf) {
b.readBuf = b.readBuf[:n]
} else {
b.readBuf = b.readBuf[:0]
}
return n, nil
}
// read next request
req := <-b.requests
n := copy(p, req)
if n < len(req) {
// buf too small, store remaining chunk for next read
b.readBuf = req[n:]
}
return n, nil
}
// Write send the given buffer to the backend
func (b *buf) Write(p []byte) (n int, err error) {
b.responses <- p
return len(p), nil
}
// Close cleans up obtained resources.
func (b *buf) Close() error {
close(b.requests)
close(b.responses)
return nil
}
// inProcClient starts a RPC server and uses buf to communicate with it.
type inProcClient struct {
server *rpc.Server
buf *buf
}
// Close will stop the RPC server
func (c *inProcClient) Close() {
c.server.Stop()
}
// Send a msg to the endpoint
func (c *inProcClient) Send(msg interface{}) error {
d, err := json.Marshal(msg)
if err != nil {
return err
}
c.buf.requests <- d
return nil
}
// Recv reads a message and tries to parse it into the given msg
func (c *inProcClient) Recv(msg interface{}) error {
data := <-c.buf.responses
return json.Unmarshal(data, &msg)
}
// Returns the collection of modules the RPC server offers.
func (c *inProcClient) SupportedModules() (map[string]string, error) {
return rpc.SupportedModules(c)
}
// NewRemoteRPCClient returns a RPC client which connects to a running geth instance.
// Depending on the given context this can either be a IPC or a HTTP client.
func NewRemoteRPCClient(ctx *cli.Context) (rpc.Client, error) {
@ -151,7 +33,7 @@ func NewRemoteRPCClient(ctx *cli.Context) (rpc.Client, error) {
return NewRemoteRPCClientFromString(endpoint)
}
// use IPC by default
return rpc.NewIPCClient(node.DefaultIpcEndpoint())
return rpc.NewIPCClient(node.DefaultIPCEndpoint())
}
// NewRemoteRPCClientFromString returns a RPC client which connects to the given
@ -169,6 +51,5 @@ func NewRemoteRPCClientFromString(endpoint string) (rpc.Client, error) {
if strings.HasPrefix(endpoint, "ws:") {
return rpc.NewWSClient(endpoint)
}
return nil, fmt.Errorf("invalid endpoint")
}

94
cmd/utils/flags.go
View File

@ -18,7 +18,6 @@ package utils
import (
"crypto/ecdsa"
"errors"
"fmt"
"io/ioutil"
"math"
@ -233,12 +232,12 @@ var (
RPCListenAddrFlag = cli.StringFlag{
Name: "rpcaddr",
Usage: "HTTP-RPC server listening interface",
Value: "127.0.0.1",
Value: common.DefaultHTTPHost,
}
RPCPortFlag = cli.IntFlag{
Name: "rpcport",
Usage: "HTTP-RPC server listening port",
Value: 8545,
Value: common.DefaultHTTPPort,
}
RPCCORSDomainFlag = cli.StringFlag{
Name: "rpccorsdomain",
@ -248,7 +247,7 @@ var (
RPCApiFlag = cli.StringFlag{
Name: "rpcapi",
Usage: "API's offered over the HTTP-RPC interface",
Value: rpc.DefaultHttpRpcApis,
Value: rpc.DefaultHTTPApis,
}
IPCDisabledFlag = cli.BoolFlag{
Name: "ipcdisable",
@ -257,12 +256,12 @@ var (
IPCApiFlag = cli.StringFlag{
Name: "ipcapi",
Usage: "API's offered over the IPC-RPC interface",
Value: rpc.DefaultIpcApis,
Value: rpc.DefaultIPCApis,
}
IPCPathFlag = DirectoryFlag{
Name: "ipcpath",
Usage: "Filename for IPC socket/pipe within the datadir (explicit paths escape it)",
Value: DirectoryString{common.DefaultIpcSocket()},
Value: DirectoryString{common.DefaultIPCSocket},
}
WSEnabledFlag = cli.BoolFlag{
Name: "ws",
@ -271,21 +270,21 @@ var (
WSListenAddrFlag = cli.StringFlag{
Name: "wsaddr",
Usage: "WS-RPC server listening interface",
Value: "127.0.0.1",
Value: common.DefaultWSHost,
}
WSPortFlag = cli.IntFlag{
Name: "wsport",
Usage: "WS-RPC server listening port",
Value: 8546,
Value: common.DefaultWSPort,
}
WSApiFlag = cli.StringFlag{
Name: "wsapi",
Usage: "API's offered over the WS-RPC interface",
Value: rpc.DefaultHttpRpcApis,
Value: rpc.DefaultHTTPApis,
}
WSAllowedDomainsFlag = cli.StringFlag{
Name: "wsdomains",
Usage: "Domains from which to accept websockets requests",
Usage: "Domains from which to accept websockets requests (can be spoofed)",
Value: "",
}
ExecFlag = cli.StringFlag{
@ -394,9 +393,9 @@ func MustMakeDataDir(ctx *cli.Context) string {
return ""
}
// MakeIpcPath creates an IPC path configuration from the set command line flags,
// MakeIPCPath creates an IPC path configuration from the set command line flags,
// returning an empty string if IPC was explicitly disabled, or the set path.
func MakeIpcPath(ctx *cli.Context) string {
func MakeIPCPath(ctx *cli.Context) string {
if ctx.GlobalBool(IPCDisabledFlag.Name) {
return ""
}
@ -482,6 +481,24 @@ func MakeNAT(ctx *cli.Context) nat.Interface {
return natif
}
// MakeHTTPRpcHost creates the HTTP RPC listener interface string from the set
// command line flags, returning empty if the HTTP endpoint is disabled.
func MakeHTTPRpcHost(ctx *cli.Context) string {
if !ctx.GlobalBool(RPCEnabledFlag.Name) {
return ""
}
return ctx.GlobalString(RPCListenAddrFlag.Name)
}
// MakeWSRpcHost creates the WebSocket RPC listener interface string from the set
// command line flags, returning empty if the HTTP endpoint is disabled.
func MakeWSRpcHost(ctx *cli.Context) string {
if !ctx.GlobalBool(WSEnabledFlag.Name) {
return ""
}
return ctx.GlobalString(WSListenAddrFlag.Name)
}
// MakeGenesisBlock loads up a genesis block from an input file specified in the
// command line, or returns the empty string if none set.
func MakeGenesisBlock(ctx *cli.Context) string {
@ -591,7 +608,6 @@ func MakeSystemNode(name, version string, extra []byte, ctx *cli.Context) *node.
// Configure the node's service container
stackConf := &node.Config{
DataDir: MustMakeDataDir(ctx),
IpcPath: MakeIpcPath(ctx),
PrivateKey: MakeNodeKey(ctx),
Name: MakeNodeName(name, version, ctx),
NoDiscovery: ctx.GlobalBool(NoDiscoverFlag.Name),
@ -600,6 +616,15 @@ func MakeSystemNode(name, version string, extra []byte, ctx *cli.Context) *node.
NAT: MakeNAT(ctx),
MaxPeers: ctx.GlobalInt(MaxPeersFlag.Name),
MaxPendingPeers: ctx.GlobalInt(MaxPendingPeersFlag.Name),
IPCPath: MakeIPCPath(ctx),
HTTPHost: MakeHTTPRpcHost(ctx),
HTTPPort: ctx.GlobalInt(RPCPortFlag.Name),
HTTPCors: ctx.GlobalString(RPCCORSDomainFlag.Name),
HTTPModules: strings.Split(ctx.GlobalString(RPCApiFlag.Name), ","),
WSHost: MakeWSRpcHost(ctx),
WSPort: ctx.GlobalInt(WSPortFlag.Name),
WSDomains: ctx.GlobalString(WSAllowedDomainsFlag.Name),
WSModules: strings.Split(ctx.GlobalString(WSApiFlag.Name), ","),
}
// Configure the Ethereum service
accman := MakeAccountManager(ctx)
@ -740,48 +765,5 @@ func MakeChain(ctx *cli.Context) (chain *core.BlockChain, chainDb ethdb.Database
if err != nil {
Fatalf("Could not start chainmanager: %v", err)
}
return chain, chainDb
}
// StartRPC starts a HTTP JSON-RPC API server.
func StartRPC(stack *node.Node, ctx *cli.Context) error {
for _, api := range stack.APIs() {
if adminApi, ok := api.Service.(*node.PrivateAdminAPI); ok {
address := ctx.GlobalString(RPCListenAddrFlag.Name)
port := ctx.GlobalInt(RPCPortFlag.Name)
cors := ctx.GlobalString(RPCCORSDomainFlag.Name)
apiStr := ""
if ctx.GlobalIsSet(RPCApiFlag.Name) {
apiStr = ctx.GlobalString(RPCApiFlag.Name)
}
_, err := adminApi.StartRPC(address, port, cors, apiStr)
return err
}
}
glog.V(logger.Error).Infof("Unable to start RPC-HTTP interface, could not find admin API")
return errors.New("Unable to start RPC-HTTP interface")
}
// StartWS starts a websocket JSON-RPC API server.
func StartWS(stack *node.Node, ctx *cli.Context) error {
for _, api := range stack.APIs() {
if adminApi, ok := api.Service.(*node.PrivateAdminAPI); ok {
address := ctx.GlobalString(WSListenAddrFlag.Name)
port := ctx.GlobalInt(WSAllowedDomainsFlag.Name)
allowedDomains := ctx.GlobalString(WSAllowedDomainsFlag.Name)
apiStr := ""
if ctx.GlobalIsSet(WSApiFlag.Name) {
apiStr = ctx.GlobalString(WSApiFlag.Name)
}
_, err := adminApi.StartWS(address, port, allowedDomains, apiStr)
return err
}
}
glog.V(logger.Error).Infof("Unable to start RPC-WS interface, could not find admin API")
return errors.New("Unable to start RPC-WS interface")
}

48
common/defaults.go Normal file
View File

@ -0,0 +1,48 @@
// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package common
import (
"path/filepath"
"runtime"
)
const (
DefaultIPCSocket = "geth.ipc" // Default (relative) name of the IPC RPC socket
DefaultHTTPHost = "localhost" // Default host interface for the HTTP RPC server
DefaultHTTPPort = 8545 // Default TCP port for the HTTP RPC server
DefaultWSHost = "localhost" // Default host interface for the websocket RPC server
DefaultWSPort = 8546 // Default TCP port for the websocket RPC server
)
// DefaultDataDir is the default data directory to use for the databases and other
// persistence requirements.
func DefaultDataDir() string {
// Try to place the data folder in the user's home dir
home := HomeDir()
if home != "" {
if runtime.GOOS == "darwin" {
return filepath.Join(home, "Library", "Ethereum")
} else if runtime.GOOS == "windows" {
return filepath.Join(home, "AppData", "Roaming", "Ethereum")
} else {
return filepath.Join(home, ".ethereum")
}
}
// As we cannot guess a stable location, return empty and handle later
return ""
}

22
common/path.go
View File

@ -72,25 +72,3 @@ func HomeDir() string {
}
return ""
}
func DefaultDataDir() string {
// Try to place the data folder in the user's home dir
home := HomeDir()
if home != "" {
if runtime.GOOS == "darwin" {
return filepath.Join(home, "Library", "Ethereum")
} else if runtime.GOOS == "windows" {
return filepath.Join(home, "AppData", "Roaming", "Ethereum")
} else {
return filepath.Join(home, ".ethereum")
}
}
// As we cannot guess a stable location, return empty and handle later
return ""
}
// DefaultIpcSocket returns the relative name of the default IPC socket. The path
// resolution is done by a node with other contextual infos.
func DefaultIpcSocket() string {
return "geth.ipc"
}

95
node/api.go
View File

@ -25,10 +25,7 @@ import (
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/discover"
"github.com/ethereum/go-ethereum/rpc"
"github.com/rcrowley/go-metrics"
"gopkg.in/fatih/set.v0"
)
// PrivateAdminAPI is the collection of administrative API methods exposed only
@ -61,83 +58,55 @@ func (api *PrivateAdminAPI) AddPeer(url string) (bool, error) {
}
// StartRPC starts the HTTP RPC API server.
func (api *PrivateAdminAPI) StartRPC(address string, port int, cors string, apis string) (bool, error) {
var offeredAPIs []rpc.API
if len(apis) > 0 {
namespaces := set.New()
for _, a := range strings.Split(apis, ",") {
namespaces.Add(strings.TrimSpace(a))
}
for _, api := range api.node.APIs() {
if namespaces.Has(api.Namespace) {
offeredAPIs = append(offeredAPIs, api)
}
}
} else { // use by default all public API's
for _, api := range api.node.APIs() {
if api.Public {
offeredAPIs = append(offeredAPIs, api)
}
}
}
func (api *PrivateAdminAPI) StartRPC(host string, port int, cors string, apis string) (bool, error) {
api.node.lock.Lock()
defer api.node.lock.Unlock()
if address == "" {
address = "127.0.0.1"
if api.node.httpHandler != nil {
return false, fmt.Errorf("HTTP RPC already running on %s", api.node.httpEndpoint)
}
if port == 0 {
port = 8545
if err := api.node.startHTTP(fmt.Sprintf("%s:%d", host, port), api.node.rpcAPIs, strings.Split(apis, ","), cors); err != nil {
return false, err
}
corsDomains := strings.Split(cors, " ")
err := rpc.StartHTTP(address, port, corsDomains, offeredAPIs)
return err == nil, err
return true, nil
}
// StopRPC terminates an already running HTTP RPC API endpoint.
func (api *PrivateAdminAPI) StopRPC() (bool, error) {
err := rpc.StopHTTP()
return err == nil, err
api.node.lock.Lock()
defer api.node.lock.Unlock()
if api.node.httpHandler == nil {
return false, fmt.Errorf("HTTP RPC not running")
}
api.node.stopHTTP()
return true, nil
}
// StartWS starts the websocket RPC API server.
func (api *PrivateAdminAPI) StartWS(address string, port int, cors string, apis string) (bool, error) {
var offeredAPIs []rpc.API
if len(apis) > 0 {
namespaces := set.New()
for _, a := range strings.Split(apis, ",") {
namespaces.Add(strings.TrimSpace(a))
}
for _, api := range api.node.APIs() {
if namespaces.Has(api.Namespace) {
offeredAPIs = append(offeredAPIs, api)
}
}
} else {
// use by default all public API's
for _, api := range api.node.APIs() {
if api.Public {
offeredAPIs = append(offeredAPIs, api)
}
}
}
func (api *PrivateAdminAPI) StartWS(host string, port int, cors string, apis string) (bool, error) {
api.node.lock.Lock()
defer api.node.lock.Unlock()
if address == "" {
address = "127.0.0.1"
if api.node.wsHandler != nil {
return false, fmt.Errorf("WebSocket RPC already running on %s", api.node.wsEndpoint)
}
if port == 0 {
port = 8546
if err := api.node.startWS(fmt.Sprintf("%s:%d", host, port), api.node.rpcAPIs, strings.Split(apis, ","), cors); err != nil {
return false, err
}
corsDomains := strings.Split(cors, " ")
err := rpc.StartWS(address, port, corsDomains, offeredAPIs)
return err == nil, err
return true, nil
}
// StopRPC terminates an already running websocket RPC API endpoint.
func (api *PrivateAdminAPI) StopWS() (bool, error) {
err := rpc.StopWS()
return err == nil, err
api.node.lock.Lock()
defer api.node.lock.Unlock()
if api.node.wsHandler == nil {
return false, fmt.Errorf("WebSocket RPC not running")
}
api.node.stopWS()
return true, nil
}
// PublicAdminAPI is the collection of administrative API methods exposed over

101
node/config.go
View File

@ -19,6 +19,7 @@ package node
import (
"crypto/ecdsa"
"encoding/json"
"fmt"
"io/ioutil"
"net"
"os"
@ -52,11 +53,11 @@ type Config struct {
// in memory.
DataDir string
// IpcPath is the requested location to place the IPC endpoint. If the path is
// IPCPath is the requested location to place the IPC endpoint. If the path is
// a simple file name, it is placed inside the data directory (or on the root
// pipe path on Windows), whereas if it's a resolvable path name (absolute or
// relative), then that specific path is enforced. An empty path disables IPC.
IpcPath string
IPCPath string
// This field should be a valid secp256k1 private key that will be used for both
// remote peer identification as well as network traffic encryption. If no key
@ -97,37 +98,105 @@ type Config struct {
// handshake phase, counted separately for inbound and outbound connections.
// Zero defaults to preset values.
MaxPendingPeers int
// HTTPHost is the host interface on which to start the HTTP RPC server. If this
// field is empty, no HTTP API endpoint will be started.
HTTPHost string
// HTTPPort is the TCP port number on which to start the HTTP RPC server. The
// default zero value is/ valid and will pick a port number randomly (useful
// for ephemeral nodes).
HTTPPort int
// HTTPCors is the Cross-Origin Resource Sharing header to send to requesting
// clients. Please be aware that CORS is a browser enforced security, it's fully
// useless for custom HTTP clients.
HTTPCors string
// HTTPModules is a list of API modules to expose via the HTTP RPC interface.
// If the module list is empty, all RPC API endpoints designated public will be
// exposed.
HTTPModules []string
// WSHost is the host interface on which to start the websocket RPC server. If
// this field is empty, no websocket API endpoint will be started.
WSHost string
// WSPort is the TCP port number on which to start the websocket RPC server. The
// default zero value is/ valid and will pick a port number randomly (useful for
// ephemeral nodes).
WSPort int
// WSDomains is the list of domain to accept websocket requests from. Please be
// aware that the server can only act upon the HTTP request the client sends and
// cannot verify the validity of the request header.
WSDomains string
// WSModules is a list of API modules to expose via the websocket RPC interface.
// If the module list is empty, all RPC API endpoints designated public will be
// exposed.
WSModules []string
}
// IpcEndpoint resolves an IPC endpoint based on a configured value, taking into
// IPCEndpoint resolves an IPC endpoint based on a configured value, taking into
// account the set data folders as well as the designated platform we're currently
// running on.
func (c *Config) IpcEndpoint() string {
func (c *Config) IPCEndpoint() string {
// Short circuit if IPC has not been enabled
if c.IpcPath == "" {
if c.IPCPath == "" {
return ""
}
// On windows we can only use plain top-level pipes
if runtime.GOOS == "windows" {
if strings.HasPrefix(c.IpcPath, `\\.\pipe\`) {
return c.IpcPath
if strings.HasPrefix(c.IPCPath, `\\.\pipe\`) {
return c.IPCPath
}
return `\\.\pipe\` + c.IpcPath
return `\\.\pipe\` + c.IPCPath
}
// Resolve names into the data directory full paths otherwise
if filepath.Base(c.IpcPath) == c.IpcPath {
if filepath.Base(c.IPCPath) == c.IPCPath {
if c.DataDir == "" {
return filepath.Join(os.TempDir(), c.IpcPath)
return filepath.Join(os.TempDir(), c.IPCPath)
}
return filepath.Join(c.DataDir, c.IpcPath)
return filepath.Join(c.DataDir, c.IPCPath)
}
return c.IpcPath
return c.IPCPath
}
// DefaultIpcEndpoint returns the IPC path used by default.
func DefaultIpcEndpoint() string {
config := &Config{DataDir: common.DefaultDataDir(), IpcPath: common.DefaultIpcSocket()}
return config.IpcEndpoint()
// DefaultIPCEndpoint returns the IPC path used by default.
func DefaultIPCEndpoint() string {
config := &Config{DataDir: common.DefaultDataDir(), IPCPath: common.DefaultIPCSocket}
return config.IPCEndpoint()
}
// HTTPEndpoint resolves an HTTP endpoint based on the configured host interface
// and port parameters.
func (c *Config) HTTPEndpoint() string {
if c.HTTPHost == "" {
return ""
}
return fmt.Sprintf("%s:%d", c.HTTPHost, c.HTTPPort)
}
// DefaultHTTPEndpoint returns the HTTP endpoint used by default.
func DefaultHTTPEndpoint() string {
config := &Config{HTTPHost: common.DefaultHTTPHost, HTTPPort: common.DefaultHTTPPort}
return config.HTTPEndpoint()
}
// WSEndpoint resolves an websocket endpoint based on the configured host interface
// and port parameters.
func (c *Config) WSEndpoint() string {
if c.WSHost == "" {
return ""
}
return fmt.Sprintf("%s:%d", c.WSHost, c.WSPort)
}
// DefaultWSEndpoint returns the websocket endpoint used by default.
func DefaultWSEndpoint() string {
config := &Config{WSHost: common.DefaultWSHost, WSPort: common.DefaultWSPort}
return config.WSEndpoint()
}
// NodeKey retrieves the currently configured private key of the node, checking

6
node/config_test.go
View File

@ -63,10 +63,10 @@ func TestDatadirCreation(t *testing.T) {
// Tests that IPC paths are correctly resolved to valid endpoints of different
// platforms.
func TestIpcPathResolution(t *testing.T) {
func TestIPCPathResolution(t *testing.T) {
var tests = []struct {
DataDir string
IpcPath string
IPCPath string
Windows bool
Endpoint string
}{
@ -85,7 +85,7 @@ func TestIpcPathResolution(t *testing.T) {
for i, test := range tests {
// Only run when platform/test match
if (runtime.GOOS == "windows") == test.Windows {
if endpoint := (&Config{DataDir: test.DataDir, IpcPath: test.IpcPath}).IpcEndpoint(); endpoint != test.Endpoint {
if endpoint := (&Config{DataDir: test.DataDir, IPCPath: test.IPCPath}).IPCEndpoint(); endpoint != test.Endpoint {
t.Errorf("test %d: IPC endpoint mismatch: have %s, want %s", i, endpoint, test.Endpoint)
}
}

282
node/node.go
View File

@ -55,10 +55,25 @@ type Node struct {
serviceFuncs []ServiceConstructor // Service constructors (in dependency order)
services map[reflect.Type]Service // Currently running services
rpcAPIs []rpc.API // List of APIs currently provided by the node
inprocHandler *rpc.Server // In-process RPC request handler to process the API requests
ipcEndpoint string // IPC endpoint to listen at (empty = IPC disabled)
ipcListener net.Listener // IPC RPC listener socket to serve API requests
ipcHandler *rpc.Server // IPC RPC request handler to process the API requests
httpEndpoint string // HTTP endpoint (interface + port) to listen at (empty = HTTP disabled)
httpWhitelist []string // HTTP RPC modules to allow through this endpoint
httpCors string // HTTP RPC Cross-Origin Resource Sharing header
httpListener net.Listener // HTTP RPC listener socket to server API requests
httpHandler *rpc.Server // HTTP RPC request handler to process the API requests
wsEndpoint string // Websocket endpoint (interface + port) to listen at (empty = websocket disabled)
wsWhitelist []string // Websocket RPC modules to allow through this endpoint
wsDomains string // Websocket RPC allowed origin domains
wsListener net.Listener // Websocket RPC listener socket to server API requests
wsHandler *rpc.Server // Websocket RPC request handler to process the API requests
stop chan struct{} // Channel to wait for termination notifications
lock sync.RWMutex
}
@ -94,7 +109,13 @@ func New(conf *Config) (*Node, error) {
MaxPendingPeers: conf.MaxPendingPeers,
},
serviceFuncs: []ServiceConstructor{},
ipcEndpoint: conf.IpcEndpoint(),
ipcEndpoint: conf.IPCEndpoint(),
httpEndpoint: conf.HTTPEndpoint(),
httpWhitelist: conf.HTTPModules,
httpCors: conf.HTTPCors,
wsEndpoint: conf.WSEndpoint(),
wsWhitelist: conf.WSModules,
wsDomains: conf.WSDomains,
eventmux: new(event.TypeMux),
}, nil
}
@ -188,35 +209,88 @@ func (n *Node) Start() error {
return nil
}
// startRPC initializes and starts the IPC RPC endpoints.
// startRPC is a helper method to start all the various RPC endpoint during node
// startup. It's not meant to be called at any time afterwards as it makes certain
// assumptions about the state of the node.
func (n *Node) startRPC(services map[reflect.Type]Service) error {
// Gather and register all the APIs exposed by the services
// Gather all the possible APIs to surface
apis := n.apis()
for _, service := range services {
apis = append(apis, service.APIs()...)
}
ipcHandler := rpc.NewServer()
for _, api := range apis {
if err := ipcHandler.RegisterName(api.Namespace, api.Service); err != nil {
// Start the various API endpoints, terminating all in case of errors
if err := n.startInProc(apis); err != nil {
return err
}
glog.V(logger.Debug).Infof("Register %T under namespace '%s'", api.Service, api.Namespace)
if err := n.startIPC(apis); err != nil {
n.stopInProc()
return err
}
// All APIs registered, start the IPC and HTTP listeners
if err := n.startHTTP(n.httpEndpoint, apis, n.httpWhitelist, n.httpCors); err != nil {
n.stopIPC()
n.stopInProc()
return err
}
if err := n.startWS(n.wsEndpoint, apis, n.wsWhitelist, n.wsDomains); err != nil {
n.stopHTTP()
n.stopIPC()
n.stopInProc()
return err
}
// All API endpoints started successfully
n.rpcAPIs = apis
return nil
}
// startInProc initializes an in-process RPC endpoint.
func (n *Node) startInProc(apis []rpc.API) error {
// Register all the APIs exposed by the services
handler := rpc.NewServer()
for _, api := range apis {
if err := handler.RegisterName(api.Namespace, api.Service); err != nil {
return err
}
glog.V(logger.Debug).Infof("InProc registered %T under '%s'", api.Service, api.Namespace)
}
n.inprocHandler = handler
return nil
}
// stopInProc terminates the in-process RPC endpoint.
func (n *Node) stopInProc() {
if n.inprocHandler != nil {
n.inprocHandler.Stop()
n.inprocHandler = nil
}
}
// startIPC initializes and starts the IPC RPC endpoint.
func (n *Node) startIPC(apis []rpc.API) error {
// Short circuit if the IPC endpoint isn't being exposed
if n.ipcEndpoint == "" {
return nil
}
// Register all the APIs exposed by the services
handler := rpc.NewServer()
for _, api := range apis {
if err := handler.RegisterName(api.Namespace, api.Service); err != nil {
return err
}
glog.V(logger.Debug).Infof("IPC registered %T under '%s'", api.Service, api.Namespace)
}
// All APIs registered, start the IPC listener
var (
ipcListener net.Listener
listener net.Listener
err error
)
if n.ipcEndpoint != "" {
if ipcListener, err = rpc.CreateIPCListener(n.ipcEndpoint); err != nil {
if listener, err = rpc.CreateIPCListener(n.ipcEndpoint); err != nil {
return err
}
go func() {
glog.V(logger.Info).Infof("IPC endpoint opened: %s", n.ipcEndpoint)
defer glog.V(logger.Info).Infof("IPC endpoint closed: %s", n.ipcEndpoint)
for {
conn, err := ipcListener.Accept()
conn, err := listener.Accept()
if err != nil {
// Terminate if the listener was closed
n.lock.RLock()
@ -229,17 +303,140 @@ func (n *Node) startRPC(services map[reflect.Type]Service) error {
glog.V(logger.Error).Infof("IPC accept failed: %v", err)
continue
}
go ipcHandler.ServeCodec(rpc.NewJSONCodec(conn))
go handler.ServeCodec(rpc.NewJSONCodec(conn))
}
}()
}
// All listeners booted successfully
n.ipcListener = ipcListener
n.ipcHandler = ipcHandler
n.ipcListener = listener
n.ipcHandler = handler
return nil
}
// stopIPC terminates the IPC RPC endpoint.
func (n *Node) stopIPC() {
if n.ipcListener != nil {
n.ipcListener.Close()
n.ipcListener = nil
glog.V(logger.Info).Infof("IPC endpoint closed: %s", n.ipcEndpoint)
}
if n.ipcHandler != nil {
n.ipcHandler.Stop()
n.ipcHandler = nil
}
}
// startHTTP initializes and starts the HTTP RPC endpoint.
func (n *Node) startHTTP(endpoint string, apis []rpc.API, modules []string, cors string) error {
// Short circuit if the HTTP endpoint isn't being exposed
if endpoint == "" {
return nil
}
// Generate the whitelist based on the allowed modules
whitelist := make(map[string]bool)
for _, module := range modules {
whitelist[module] = true
}
// Register all the APIs exposed by the services
handler := rpc.NewServer()
for _, api := range apis {
if whitelist[api.Namespace] || (len(whitelist) == 0 && api.Public) {
if err := handler.RegisterName(api.Namespace, api.Service); err != nil {
return err
}
glog.V(logger.Debug).Infof("HTTP registered %T under '%s'", api.Service, api.Namespace)
}
}
// All APIs registered, start the HTTP listener
var (
listener net.Listener
err error
)
if listener, err = net.Listen("tcp", endpoint); err != nil {
return err
}
go rpc.NewHTTPServer(cors, handler).Serve(listener)
glog.V(logger.Info).Infof("HTTP endpoint opened: http://%s", endpoint)
// All listeners booted successfully
n.httpEndpoint = endpoint
n.httpListener = listener
n.httpHandler = handler
n.httpCors = cors
return nil
}
// stopHTTP terminates the HTTP RPC endpoint.
func (n *Node) stopHTTP() {
if n.httpListener != nil {
n.httpListener.Close()
n.httpListener = nil
glog.V(logger.Info).Infof("HTTP endpoint closed: http://%s", n.httpEndpoint)
}
if n.httpHandler != nil {
n.httpHandler.Stop()
n.httpHandler = nil
}
}
// startWS initializes and starts the websocket RPC endpoint.
func (n *Node) startWS(endpoint string, apis []rpc.API, modules []string, cors string) error {
// Short circuit if the WS endpoint isn't being exposed
if endpoint == "" {
return nil
}
// Generate the whitelist based on the allowed modules
whitelist := make(map[string]bool)
for _, module := range modules {
whitelist[module] = true
}
// Register all the APIs exposed by the services
handler := rpc.NewServer()
for _, api := range apis {
if whitelist[api.Namespace] || (len(whitelist) == 0 && api.Public) {
if err := handler.RegisterName(api.Namespace, api.Service); err != nil {
return err
}
glog.V(logger.Debug).Infof("WebSocket registered %T under '%s'", api.Service, api.Namespace)
}
}
// All APIs registered, start the HTTP listener
var (
listener net.Listener
err error
)
if listener, err = net.Listen("tcp", endpoint); err != nil {
return err
}
go rpc.NewWSServer(cors, handler).Serve(listener)
glog.V(logger.Info).Infof("WebSocket endpoint opened: ws://%s", endpoint)
// All listeners booted successfully
n.wsEndpoint = endpoint
n.wsListener = listener
n.wsHandler = handler
n.wsDomains = cors
return nil
}
// stopWS terminates the websocket RPC endpoint.
func (n *Node) stopWS() {
if n.wsListener != nil {
n.wsListener.Close()
n.wsListener = nil
glog.V(logger.Info).Infof("WebSocket endpoint closed: ws://%s", n.wsEndpoint)
}
if n.wsHandler != nil {
n.wsHandler.Stop()
n.wsHandler = nil
}
}
// Stop terminates a running node along with all it's services. In the node was
// not started, an error is returned.
func (n *Node) Stop() error {
@ -251,14 +448,11 @@ func (n *Node) Stop() error {
return ErrNodeStopped
}
// Otherwise terminate the API, all services and the P2P server too
if n.ipcListener != nil {
n.ipcListener.Close()
n.ipcListener = nil
}
if n.ipcHandler != nil {
n.ipcHandler.Stop()
n.ipcHandler = nil
}
n.stopWS()
n.stopHTTP()
n.stopIPC()
n.rpcAPIs = nil
failure := &StopError{
Services: make(map[reflect.Type]error),
}
@ -304,6 +498,19 @@ func (n *Node) Restart() error {
return nil
}
// Attach creates an RPC client attached to an in-process API handler.
func (n *Node) Attach() (rpc.Client, error) {
n.lock.RLock()
defer n.lock.RUnlock()
// Short circuit if the node's not running
if n.server == nil {
return nil, ErrNodeStopped
}
// Otherwise attach to the API and return
return rpc.NewInProcRPCClient(n.inprocHandler), nil
}
// Server retrieves the currently running P2P network layer. This method is meant
// only to inspect fields of the currently running server, life cycle management
// should be left to this Node entity.
@ -337,11 +544,21 @@ func (n *Node) DataDir() string {
return n.datadir
}
// IpcEndpoint retrieves the current IPC endpoint used by the protocol stack.
func (n *Node) IpcEndpoint() string {
// IPCEndpoint retrieves the current IPC endpoint used by the protocol stack.
func (n *Node) IPCEndpoint() string {
return n.ipcEndpoint
}
// HTTPEndpoint retrieves the current HTTP endpoint used by the protocol stack.
func (n *Node) HTTPEndpoint() string {
return n.httpEndpoint
}
// WSEndpoint retrieves the current WS endpoint used by the protocol stack.
func (n *Node) WSEndpoint() string {
return n.wsEndpoint
}
// EventMux retrieves the event multiplexer used by all the network services in
// the current protocol stack.
func (n *Node) EventMux() *event.TypeMux {
@ -377,14 +594,3 @@ func (n *Node) apis() []rpc.API {
},
}
}
// APIs returns the collection of RPC descriptor this node offers. This method
// is just a quick placeholder passthrough for the RPC update, which in the next
// step will be fully integrated into the node itself.
func (n *Node) APIs() []rpc.API {
apis := n.apis()
for _, api := range n.services {
apis = append(apis, api.APIs()...)
}
return apis
}

12
node/node_test.go
View File

@ -18,9 +18,7 @@ package node
import (
"errors"
"fmt"
"io/ioutil"
"math/rand"
"os"
"reflect"
"testing"
@ -37,7 +35,6 @@ var (
func testNodeConfig() *Config {
return &Config{
IpcPath: fmt.Sprintf("test-%d.ipc", rand.Int63()),
PrivateKey: testNodeKey,
Name: "test node",
}
@ -541,10 +538,11 @@ func TestAPIGather(t *testing.T) {
defer stack.Stop()
// Connect to the RPC server and verify the various registered endpoints
ipcClient, err := rpc.NewIPCClient(stack.IpcEndpoint())
client, err := stack.Attach()
if err != nil {
t.Fatalf("failed to connect to the IPC API server: %v", err)
t.Fatalf("failed to connect to the inproc API server: %v", err)
}
defer client.Close()
tests := []struct {
Method string
@ -556,11 +554,11 @@ func TestAPIGather(t *testing.T) {
{"multi.v2.nested_theOneMethod", "multi.v2.nested"},
}
for i, test := range tests {
if err := ipcClient.Send(rpc.JSONRequest{Id: new(int64), Version: "2.0", Method: test.Method}); err != nil {
if err := client.Send(rpc.JSONRequest{Id: new(int64), Version: "2.0", Method: test.Method}); err != nil {
t.Fatalf("test %d: failed to send API request: %v", i, err)
}
reply := new(rpc.JSONSuccessResponse)
if err := ipcClient.Recv(reply); err != nil {
if err := client.Recv(reply); err != nil {
t.Fatalf("test %d: failed to read API reply: %v", i, err)
}
select {

63
rpc/http.go
View File

@ -20,7 +20,6 @@ import (
"bufio"
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"io/ioutil"
@ -29,7 +28,6 @@ import (
"net/url"
"strconv"
"strings"
"sync"
"time"
"github.com/ethereum/go-ethereum/logger"
@ -41,12 +39,6 @@ const (
httpReadDeadLine = 60 * time.Second // wait max httpReadDeadeline for next request
)
var (
httpServerMu sync.Mutex // prevent concurrent access to the httpListener and httpServer
httpListener net.Listener // listener for the http server
httpRPCServer *Server // the node can only start 1 HTTP RPC server instance
)
// httpMessageStream is the glue between a HTTP connection which is message based
// and the RPC codecs that expect json requests to be read from a stream. It will
// parse HTTP messages and offer the bodies of these requests as a stream through
@ -249,53 +241,14 @@ func (h *httpConnHijacker) ServeHTTP(w http.ResponseWriter, req *http.Request) {
go h.rpcServer.ServeCodec(codec)
}
// StartHTTP will start the JSONRPC HTTP RPC interface when its not yet running.
func StartHTTP(address string, port int, corsdomains []string, apis []API) error {
httpServerMu.Lock()
defer httpServerMu.Unlock()
if httpRPCServer != nil {
return fmt.Errorf("HTTP RPC interface already started on %s", httpListener.Addr())
// NewHTTPServer creates a new HTTP RPC server around an API provider.
func NewHTTPServer(cors string, handler *Server) *http.Server {
return &http.Server{
Handler: &httpConnHijacker{
corsdomains: strings.Split(cors, ","),
rpcServer: handler,
},
}
rpcServer := NewServer()
for _, api := range apis {
if err := rpcServer.RegisterName(api.Namespace, api.Service); err != nil {
return err
}
}
listener, err := net.Listen("tcp", fmt.Sprintf("%s:%d", address, port))
if err != nil {
return err
}
httpServer := http.Server{Handler: &httpConnHijacker{corsdomains, rpcServer}}
go httpServer.Serve(listener)
httpListener = listener
httpRPCServer = rpcServer
return nil
}
// StopHTTP will stop the running HTTP interface. If it is not running an error will be returned.
func StopHTTP() error {
httpServerMu.Lock()
defer httpServerMu.Unlock()
if httpRPCServer == nil {
return errors.New("HTTP RPC interface not started")
}
httpListener.Close()
httpRPCServer.Stop()
httpRPCServer = nil
httpListener = nil
return nil
}
// httpClient connects to a geth RPC server over HTTP.
@ -306,7 +259,7 @@ type httpClient struct {
// NewHTTPClient create a new RPC clients that connection to a geth RPC server
// over HTTP.
func NewHTTPClient(endpoint string) (*httpClient, error) {
func NewHTTPClient(endpoint string) (Client, error) {
url, err := url.Parse(endpoint)
if err != nil {
return nil, err

111
rpc/inproc.go Normal file
View File

@ -0,0 +1,111 @@
// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package rpc
import "encoding/json"
// NewInProcRPCClient creates an in-process buffer stream attachment to a given
// RPC server.
func NewInProcRPCClient(handler *Server) Client {
buffer := &inprocBuffer{
requests: make(chan []byte, 16),
responses: make(chan []byte, 16),
}
client := &inProcClient{
server: handler,
buffer: buffer,
}
go handler.ServeCodec(NewJSONCodec(client.buffer))
return client
}
// inProcClient is an in-process buffer stream attached to an RPC server.
type inProcClient struct {
server *Server
buffer *inprocBuffer
}
// Close tears down the request channel of the in-proc client.
func (c *inProcClient) Close() {
c.buffer.Close()
}
// Send marshals a message into a json format and injects in into the client
// request channel.
func (c *inProcClient) Send(msg interface{}) error {
d, err := json.Marshal(msg)
if err != nil {
return err
}
c.buffer.requests <- d
return nil
}
// Recv reads a message from the response channel and tries to parse it into the
// given msg interface.
func (c *inProcClient) Recv(msg interface{}) error {
data := <-c.buffer.responses
return json.Unmarshal(data, &msg)
}
// Returns the collection of modules the RPC server offers.
func (c *inProcClient) SupportedModules() (map[string]string, error) {
return SupportedModules(c)
}
// inprocBuffer represents the connection between the RPC server and console
type inprocBuffer struct {
readBuf []byte // store remaining request bytes after a partial read
requests chan []byte // list with raw serialized requests
responses chan []byte // list with raw serialized responses
}
// Read will read the next request in json format.
func (b *inprocBuffer) Read(p []byte) (int, error) {
// last read didn't read entire request, return remaining bytes
if len(b.readBuf) > 0 {
n := copy(p, b.readBuf)
if n < len(b.readBuf) {
b.readBuf = b.readBuf[:n]
} else {
b.readBuf = b.readBuf[:0]
}
return n, nil
}
// read next request
req := <-b.requests
n := copy(p, req)
if n < len(req) {
// inprocBuffer too small, store remaining chunk for next read
b.readBuf = req[n:]
}
return n, nil
}
// Write sends the given buffer to the backend.
func (b *inprocBuffer) Write(p []byte) (n int, err error) {
b.responses <- p
return len(p), nil
}
// Close cleans up obtained resources.
func (b *inprocBuffer) Close() error {
close(b.requests)
close(b.responses)
return nil
}

2
rpc/ipc.go
View File

@ -38,7 +38,7 @@ type ipcClient struct {
// NewIPCClient create a new IPC client that will connect on the given endpoint. Messages are JSON encoded and encoded.
// On Unix it assumes the endpoint is the full path to a unix socket, and Windows the endpoint is an identifier for a
// named pipe.
func NewIPCClient(endpoint string) (*ipcClient, error) {
func NewIPCClient(endpoint string) (Client, error) {
conn, err := newIPCConnection(endpoint)
if err != nil {
return nil, err

4
rpc/server.go
View File

@ -33,8 +33,8 @@ import (
const (
stopPendingRequestTimeout = 3 * time.Second // give pending requests stopPendingRequestTimeout the time to finish when the server is stopped
DefaultIpcApis = "admin,eth,debug,miner,net,shh,txpool,personal,web3"
DefaultHttpRpcApis = "eth,net,web3"
DefaultIPCApis = "admin,eth,debug,miner,net,shh,txpool,personal,web3"
DefaultHTTPApis = "eth,net,web3"
)
// NewServer will create a new server instance with no registered handlers.

3
rpc/utils.go
View File

@ -20,13 +20,12 @@ import (
"crypto/rand"
"encoding/hex"
"errors"
"fmt"
"math/big"
"reflect"
"unicode"
"unicode/utf8"
"fmt"
"golang.org/x/net/context"
)

78
rpc/websocket.go
View File

@ -17,13 +17,11 @@
package rpc
import (
"errors"
"fmt"
"net"
"net/http"
"sync"
"os"
"strings"
"sync"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
@ -31,12 +29,6 @@ import (
"gopkg.in/fatih/set.v0"
)
var (
wsServerMu sync.Mutex
wsRPCServer *Server
wsListener net.Listener
)
// wsReaderWriterCloser reads and write payloads from and to a websocket connection.
type wsReaderWriterCloser struct {
c *websocket.Conn
@ -57,14 +49,6 @@ func (rw *wsReaderWriterCloser) Close() error {
return rw.c.Close()
}
// wsHandler accepts a websocket connection and handles incoming RPC requests.
// Will return when the websocket connection is closed, either by the client or
// server.
func wsHandler(conn *websocket.Conn) {
rwc := &wsReaderWriterCloser{conn}
wsRPCServer.ServeCodec(NewJSONCodec(rwc))
}
// wsHandshakeValidator returns a handler that verifies the origin during the
// websocket upgrade process. When a '*' is specified as an allowed origins all
// connections are accepted.
@ -103,54 +87,16 @@ func wsHandshakeValidator(allowedOrigins []string) func(*websocket.Config, *http
return f
}
// StartWS will start a websocket RPC server on the given address and port.
func StartWS(address string, port int, corsdomains []string, apis []API) error {
wsServerMu.Lock()
defer wsServerMu.Unlock()
if wsRPCServer != nil {
return fmt.Errorf("WS RPC interface already started on %s", wsListener.Addr())
// NewWSServer creates a new websocket RPC server around an API provider.
func NewWSServer(cors string, handler *Server) *http.Server {
return &http.Server{
Handler: websocket.Server{
Handshake: wsHandshakeValidator(strings.Split(cors, ",")),
Handler: func(conn *websocket.Conn) {
handler.ServeCodec(NewJSONCodec(&wsReaderWriterCloser{conn}))
},
},
}
rpcServer := NewServer()
for _, api := range apis {
if err := rpcServer.RegisterName(api.Namespace, api.Service); err != nil {
return err
}
}
listener, err := net.Listen("tcp", fmt.Sprintf("%s:%d", address, port))
if err != nil {
return err
}
wsServer := websocket.Server{Handshake: wsHandshakeValidator(corsdomains), Handler: wsHandler}
wsHTTPServer := http.Server{Handler: wsServer}
go wsHTTPServer.Serve(listener)
wsListener = listener
wsRPCServer = rpcServer
return nil
}
// StopWS stops the running websocket RPC server.
func StopWS() error {
wsServerMu.Lock()
defer wsServerMu.Unlock()
if wsRPCServer == nil {
return errors.New("HTTP RPC interface not started")
}
wsListener.Close()
wsRPCServer.Stop()
wsRPCServer = nil
wsListener = nil
return nil
}
// wsClient represents a RPC client that communicates over websockets with a
@ -163,7 +109,7 @@ type wsClient struct {
// NewWSClientj creates a new RPC client that communicates with a RPC server
// that is listening on the given endpoint using JSON encoding.
func NewWSClient(endpoint string) (*wsClient, error) {
func NewWSClient(endpoint string) (Client, error) {
return &wsClient{endpoint: endpoint}, nil
}