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swarm, cmd/swarm: Merge branch 'master' into multiple-ens-endpoints

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Merge with changes that implement config file PR #15548.

Field *EnsApi string* in swarm/api.Config is replaced with
*EnsAPIs []string*.

A new field *EnsDisabled bool* is added to swarm/api.Config for
easy way to disable ENS resolving with config file.

Signature of function swarm.NewSwarm is changed and simplified.
This commit is contained in:
Janos Guljas
2017-12-13 10:23:11 +01:00
parent 1dc19de5da 32516c768e
commit 19982f9467
140 changed files with 5014 additions and 2082 deletions
Download Patch File Download Diff File Expand all files Collapse all files

342
cmd/swarm/config.go Normal file
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@ -0,0 +1,342 @@
// Copyright 2017 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package main
import (
"errors"
"fmt"
"io"
"os"
"reflect"
"strconv"
"strings"
"unicode"
cli "gopkg.in/urfave/cli.v1"
"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/node"
"github.com/naoina/toml"
bzzapi "github.com/ethereum/go-ethereum/swarm/api"
)
var (
//flag definition for the dumpconfig command
DumpConfigCommand = cli.Command{
Action: utils.MigrateFlags(dumpConfig),
Name: "dumpconfig",
Usage: "Show configuration values",
ArgsUsage: "",
Flags: app.Flags,
Category: "MISCELLANEOUS COMMANDS",
Description: `The dumpconfig command shows configuration values.`,
}
//flag definition for the config file command
SwarmTomlConfigPathFlag = cli.StringFlag{
Name: "config",
Usage: "TOML configuration file",
}
)
//constants for environment variables
const (
SWARM_ENV_CHEQUEBOOK_ADDR = "SWARM_CHEQUEBOOK_ADDR"
SWARM_ENV_ACCOUNT = "SWARM_ACCOUNT"
SWARM_ENV_LISTEN_ADDR = "SWARM_LISTEN_ADDR"
SWARM_ENV_PORT = "SWARM_PORT"
SWARM_ENV_NETWORK_ID = "SWARM_NETWORK_ID"
SWARM_ENV_SWAP_ENABLE = "SWARM_SWAP_ENABLE"
SWARM_ENV_SWAP_API = "SWARM_SWAP_API"
SWARM_ENV_SYNC_ENABLE = "SWARM_SYNC_ENABLE"
SWARM_ENV_ENS_API = "SWARM_ENS_API"
SWARM_ENV_ENS_ADDR = "SWARM_ENS_ADDR"
SWARM_ENV_CORS = "SWARM_CORS"
SWARM_ENV_BOOTNODES = "SWARM_BOOTNODES"
GETH_ENV_DATADIR = "GETH_DATADIR"
)
// These settings ensure that TOML keys use the same names as Go struct fields.
var tomlSettings = toml.Config{
NormFieldName: func(rt reflect.Type, key string) string {
return key
},
FieldToKey: func(rt reflect.Type, field string) string {
return field
},
MissingField: func(rt reflect.Type, field string) error {
link := ""
if unicode.IsUpper(rune(rt.Name()[0])) && rt.PkgPath() != "main" {
link = fmt.Sprintf(", check github.com/ethereum/go-ethereum/swarm/api/config.go for available fields")
}
return fmt.Errorf("field '%s' is not defined in %s%s", field, rt.String(), link)
},
}
//before booting the swarm node, build the configuration
func buildConfig(ctx *cli.Context) (config *bzzapi.Config, err error) {
//check for deprecated flags
checkDeprecated(ctx)
//start by creating a default config
config = bzzapi.NewDefaultConfig()
//first load settings from config file (if provided)
config, err = configFileOverride(config, ctx)
//override settings provided by environment variables
config = envVarsOverride(config)
//override settings provided by command line
config = cmdLineOverride(config, ctx)
return
}
//finally, after the configuration build phase is finished, initialize
func initSwarmNode(config *bzzapi.Config, stack *node.Node, ctx *cli.Context) {
//at this point, all vars should be set in the Config
//get the account for the provided swarm account
prvkey := getAccount(config.BzzAccount, ctx, stack)
//set the resolved config path (geth --datadir)
config.Path = stack.InstanceDir()
//finally, initialize the configuration
config.Init(prvkey)
//configuration phase completed here
log.Debug("Starting Swarm with the following parameters:")
//after having created the config, print it to screen
log.Debug(printConfig(config))
}
//override the current config with whatever is in the config file, if a config file has been provided
func configFileOverride(config *bzzapi.Config, ctx *cli.Context) (*bzzapi.Config, error) {
var err error
//only do something if the -config flag has been set
if ctx.GlobalIsSet(SwarmTomlConfigPathFlag.Name) {
var filepath string
if filepath = ctx.GlobalString(SwarmTomlConfigPathFlag.Name); filepath == "" {
utils.Fatalf("Config file flag provided with invalid file path")
}
f, err := os.Open(filepath)
if err != nil {
return nil, err
}
defer f.Close()
//decode the TOML file into a Config struct
//note that we are decoding into the existing defaultConfig;
//if an entry is not present in the file, the default entry is kept
err = tomlSettings.NewDecoder(f).Decode(&config)
// Add file name to errors that have a line number.
if _, ok := err.(*toml.LineError); ok {
err = errors.New(filepath + ", " + err.Error())
}
}
return config, err
}
//override the current config with whatever is provided through the command line
//most values are not allowed a zero value (empty string), if not otherwise noted
func cmdLineOverride(currentConfig *bzzapi.Config, ctx *cli.Context) *bzzapi.Config {
if keyid := ctx.GlobalString(SwarmAccountFlag.Name); keyid != "" {
currentConfig.BzzAccount = keyid
}
if chbookaddr := ctx.GlobalString(ChequebookAddrFlag.Name); chbookaddr != "" {
currentConfig.Contract = common.HexToAddress(chbookaddr)
}
if networkid := ctx.GlobalString(SwarmNetworkIdFlag.Name); networkid != "" {
if id, _ := strconv.Atoi(networkid); id != 0 {
currentConfig.NetworkId = uint64(id)
}
}
if ctx.GlobalIsSet(utils.DataDirFlag.Name) {
if datadir := ctx.GlobalString(utils.DataDirFlag.Name); datadir != "" {
currentConfig.Path = datadir
}
}
bzzport := ctx.GlobalString(SwarmPortFlag.Name)
if len(bzzport) > 0 {
currentConfig.Port = bzzport
}
if bzzaddr := ctx.GlobalString(SwarmListenAddrFlag.Name); bzzaddr != "" {
currentConfig.ListenAddr = bzzaddr
}
if ctx.GlobalIsSet(SwarmSwapEnabledFlag.Name) {
currentConfig.SwapEnabled = true
}
if ctx.GlobalIsSet(SwarmSyncEnabledFlag.Name) {
currentConfig.SyncEnabled = true
}
currentConfig.SwapApi = ctx.GlobalString(SwarmSwapAPIFlag.Name)
if currentConfig.SwapEnabled && currentConfig.SwapApi == "" {
utils.Fatalf(SWARM_ERR_SWAP_SET_NO_API)
}
//EnsAPIs can be set to "", so can't check for empty string, as it is allowed!
if ctx.GlobalIsSet(EnsAPIFlag.Name) {
ensAPIs := ctx.GlobalStringSlice(EnsAPIFlag.Name)
// Disable ENS resolver if --ens-api="" is specified
if len(ensAPIs) == 1 && ensAPIs[0] == "" {
currentConfig.EnsDisabled = true
currentConfig.EnsAPIs = nil
} else {
currentConfig.EnsDisabled = false
currentConfig.EnsAPIs = ensAPIs
}
}
if ensaddr := ctx.GlobalString(DeprecatedEnsAddrFlag.Name); ensaddr != "" {
currentConfig.EnsRoot = common.HexToAddress(ensaddr)
}
if cors := ctx.GlobalString(CorsStringFlag.Name); cors != "" {
currentConfig.Cors = cors
}
if ctx.GlobalIsSet(utils.BootnodesFlag.Name) {
currentConfig.BootNodes = ctx.GlobalString(utils.BootnodesFlag.Name)
}
return currentConfig
}
//override the current config with whatver is provided in environment variables
//most values are not allowed a zero value (empty string), if not otherwise noted
func envVarsOverride(currentConfig *bzzapi.Config) (config *bzzapi.Config) {
if keyid := os.Getenv(SWARM_ENV_ACCOUNT); keyid != "" {
currentConfig.BzzAccount = keyid
}
if chbookaddr := os.Getenv(SWARM_ENV_CHEQUEBOOK_ADDR); chbookaddr != "" {
currentConfig.Contract = common.HexToAddress(chbookaddr)
}
if networkid := os.Getenv(SWARM_ENV_NETWORK_ID); networkid != "" {
if id, _ := strconv.Atoi(networkid); id != 0 {
currentConfig.NetworkId = uint64(id)
}
}
if datadir := os.Getenv(GETH_ENV_DATADIR); datadir != "" {
currentConfig.Path = datadir
}
bzzport := os.Getenv(SWARM_ENV_PORT)
if len(bzzport) > 0 {
currentConfig.Port = bzzport
}
if bzzaddr := os.Getenv(SWARM_ENV_LISTEN_ADDR); bzzaddr != "" {
currentConfig.ListenAddr = bzzaddr
}
if swapenable := os.Getenv(SWARM_ENV_SWAP_ENABLE); swapenable != "" {
if swap, err := strconv.ParseBool(swapenable); err != nil {
currentConfig.SwapEnabled = swap
}
}
if syncenable := os.Getenv(SWARM_ENV_SYNC_ENABLE); syncenable != "" {
if sync, err := strconv.ParseBool(syncenable); err != nil {
currentConfig.SyncEnabled = sync
}
}
if swapapi := os.Getenv(SWARM_ENV_SWAP_API); swapapi != "" {
currentConfig.SwapApi = swapapi
}
if currentConfig.SwapEnabled && currentConfig.SwapApi == "" {
utils.Fatalf(SWARM_ERR_SWAP_SET_NO_API)
}
//EnsAPIs can be set to "", so can't check for empty string, as it is allowed
if ensapi, exists := os.LookupEnv(SWARM_ENV_ENS_API); exists == true {
ensAPIs := strings.Split(ensapi, ",")
// Disable ENS resolver if SWARM_ENS_API="" is specified
if len(ensAPIs) == 0 {
currentConfig.EnsDisabled = true
currentConfig.EnsAPIs = nil
} else {
currentConfig.EnsDisabled = false
currentConfig.EnsAPIs = ensAPIs
}
}
if ensaddr := os.Getenv(SWARM_ENV_ENS_ADDR); ensaddr != "" {
currentConfig.EnsRoot = common.HexToAddress(ensaddr)
}
if cors := os.Getenv(SWARM_ENV_CORS); cors != "" {
currentConfig.Cors = cors
}
if bootnodes := os.Getenv(SWARM_ENV_BOOTNODES); bootnodes != "" {
currentConfig.BootNodes = bootnodes
}
return currentConfig
}
// dumpConfig is the dumpconfig command.
// writes a default config to STDOUT
func dumpConfig(ctx *cli.Context) error {
cfg, err := buildConfig(ctx)
if err != nil {
utils.Fatalf(fmt.Sprintf("Uh oh - dumpconfig triggered an error %v", err))
}
comment := ""
out, err := tomlSettings.Marshal(&cfg)
if err != nil {
return err
}
io.WriteString(os.Stdout, comment)
os.Stdout.Write(out)
return nil
}
//deprecated flags checked here
func checkDeprecated(ctx *cli.Context) {
// exit if the deprecated --ethapi flag is set
if ctx.GlobalString(DeprecatedEthAPIFlag.Name) != "" {
utils.Fatalf("--ethapi is no longer a valid command line flag, please use --ens-api and/or --swap-api.")
}
// warn if --ens-api flag is set
if ctx.GlobalString(DeprecatedEnsAddrFlag.Name) != "" {
log.Warn("--ens-addr is no longer a valid command line flag, please use --ens-api to specify contract address.")
}
}
//print a Config as string
func printConfig(config *bzzapi.Config) string {
out, err := tomlSettings.Marshal(&config)
if err != nil {
return (fmt.Sprintf("Something is not right with the configuration: %v", err))
}
return string(out)
}

459
cmd/swarm/config_test.go Normal file
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// Copyright 2017 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package main
import (
"fmt"
"io"
"io/ioutil"
"os"
"os/exec"
"testing"
"time"
"github.com/ethereum/go-ethereum/rpc"
"github.com/ethereum/go-ethereum/swarm"
"github.com/ethereum/go-ethereum/swarm/api"
"github.com/docker/docker/pkg/reexec"
)
func TestDumpConfig(t *testing.T) {
swarm := runSwarm(t, "dumpconfig")
defaultConf := api.NewDefaultConfig()
out, err := tomlSettings.Marshal(&defaultConf)
if err != nil {
t.Fatal(err)
}
swarm.Expect(string(out))
swarm.ExpectExit()
}
func TestFailsSwapEnabledNoSwapApi(t *testing.T) {
flags := []string{
fmt.Sprintf("--%s", SwarmNetworkIdFlag.Name), "42",
fmt.Sprintf("--%s", SwarmPortFlag.Name), "54545",
fmt.Sprintf("--%s", SwarmSwapEnabledFlag.Name),
}
swarm := runSwarm(t, flags...)
swarm.Expect("Fatal: " + SWARM_ERR_SWAP_SET_NO_API + "\n")
swarm.ExpectExit()
}
func TestFailsNoBzzAccount(t *testing.T) {
flags := []string{
fmt.Sprintf("--%s", SwarmNetworkIdFlag.Name), "42",
fmt.Sprintf("--%s", SwarmPortFlag.Name), "54545",
}
swarm := runSwarm(t, flags...)
swarm.Expect("Fatal: " + SWARM_ERR_NO_BZZACCOUNT + "\n")
swarm.ExpectExit()
}
func TestCmdLineOverrides(t *testing.T) {
dir, err := ioutil.TempDir("", "bzztest")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
conf, account := getTestAccount(t, dir)
node := &testNode{Dir: dir}
// assign ports
httpPort, err := assignTCPPort()
if err != nil {
t.Fatal(err)
}
flags := []string{
fmt.Sprintf("--%s", SwarmNetworkIdFlag.Name), "42",
fmt.Sprintf("--%s", SwarmPortFlag.Name), httpPort,
fmt.Sprintf("--%s", SwarmSyncEnabledFlag.Name),
fmt.Sprintf("--%s", CorsStringFlag.Name), "*",
fmt.Sprintf("--%s", SwarmAccountFlag.Name), account.Address.String(),
fmt.Sprintf("--%s", EnsAPIFlag.Name), "",
"--datadir", dir,
"--ipcpath", conf.IPCPath,
}
node.Cmd = runSwarm(t, flags...)
node.Cmd.InputLine(testPassphrase)
defer func() {
if t.Failed() {
node.Shutdown()
}
}()
// wait for the node to start
for start := time.Now(); time.Since(start) < 10*time.Second; time.Sleep(50 * time.Millisecond) {
node.Client, err = rpc.Dial(conf.IPCEndpoint())
if err == nil {
break
}
}
if node.Client == nil {
t.Fatal(err)
}
// load info
var info swarm.Info
if err := node.Client.Call(&info, "bzz_info"); err != nil {
t.Fatal(err)
}
if info.Port != httpPort {
t.Fatalf("Expected port to be %s, got %s", httpPort, info.Port)
}
if info.NetworkId != 42 {
t.Fatalf("Expected network ID to be %d, got %d", 42, info.NetworkId)
}
if info.SyncEnabled != true {
t.Fatal("Expected Sync to be enabled, but is false")
}
if info.Cors != "*" {
t.Fatalf("Expected Cors flag to be set to %s, got %s", "*", info.Cors)
}
node.Shutdown()
}
func TestFileOverrides(t *testing.T) {
// assign ports
httpPort, err := assignTCPPort()
if err != nil {
t.Fatal(err)
}
//create a config file
//first, create a default conf
defaultConf := api.NewDefaultConfig()
//change some values in order to test if they have been loaded
defaultConf.SyncEnabled = true
defaultConf.NetworkId = 54
defaultConf.Port = httpPort
defaultConf.StoreParams.DbCapacity = 9000000
defaultConf.ChunkerParams.Branches = 64
defaultConf.HiveParams.CallInterval = 6000000000
defaultConf.Swap.Params.Strategy.AutoCashInterval = 600 * time.Second
defaultConf.SyncParams.KeyBufferSize = 512
//create a TOML string
out, err := tomlSettings.Marshal(&defaultConf)
if err != nil {
t.Fatalf("Error creating TOML file in TestFileOverride: %v", err)
}
//create file
f, err := ioutil.TempFile("", "testconfig.toml")
if err != nil {
t.Fatalf("Error writing TOML file in TestFileOverride: %v", err)
}
//write file
_, err = f.WriteString(string(out))
if err != nil {
t.Fatalf("Error writing TOML file in TestFileOverride: %v", err)
}
f.Sync()
dir, err := ioutil.TempDir("", "bzztest")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
conf, account := getTestAccount(t, dir)
node := &testNode{Dir: dir}
flags := []string{
fmt.Sprintf("--%s", SwarmTomlConfigPathFlag.Name), f.Name(),
fmt.Sprintf("--%s", SwarmAccountFlag.Name), account.Address.String(),
"--ens-api", "",
"--ipcpath", conf.IPCPath,
"--datadir", dir,
}
node.Cmd = runSwarm(t, flags...)
node.Cmd.InputLine(testPassphrase)
defer func() {
if t.Failed() {
node.Shutdown()
}
}()
// wait for the node to start
for start := time.Now(); time.Since(start) < 10*time.Second; time.Sleep(50 * time.Millisecond) {
node.Client, err = rpc.Dial(conf.IPCEndpoint())
if err == nil {
break
}
}
if node.Client == nil {
t.Fatal(err)
}
// load info
var info swarm.Info
if err := node.Client.Call(&info, "bzz_info"); err != nil {
t.Fatal(err)
}
if info.Port != httpPort {
t.Fatalf("Expected port to be %s, got %s", httpPort, info.Port)
}
if info.NetworkId != 54 {
t.Fatalf("Expected network ID to be %d, got %d", 54, info.NetworkId)
}
if info.SyncEnabled != true {
t.Fatal("Expected Sync to be enabled, but is false")
}
if info.StoreParams.DbCapacity != 9000000 {
t.Fatalf("Expected network ID to be %d, got %d", 54, info.NetworkId)
}
if info.ChunkerParams.Branches != 64 {
t.Fatalf("Expected chunker params branches to be %d, got %d", 64, info.ChunkerParams.Branches)
}
if info.HiveParams.CallInterval != 6000000000 {
t.Fatalf("Expected HiveParams CallInterval to be %d, got %d", uint64(6000000000), uint64(info.HiveParams.CallInterval))
}
if info.Swap.Params.Strategy.AutoCashInterval != 600*time.Second {
t.Fatalf("Expected SwapParams AutoCashInterval to be %ds, got %d", 600, info.Swap.Params.Strategy.AutoCashInterval)
}
if info.SyncParams.KeyBufferSize != 512 {
t.Fatalf("Expected info.SyncParams.KeyBufferSize to be %d, got %d", 512, info.SyncParams.KeyBufferSize)
}
node.Shutdown()
}
func TestEnvVars(t *testing.T) {
// assign ports
httpPort, err := assignTCPPort()
if err != nil {
t.Fatal(err)
}
envVars := os.Environ()
envVars = append(envVars, fmt.Sprintf("%s=%s", SwarmPortFlag.EnvVar, httpPort))
envVars = append(envVars, fmt.Sprintf("%s=%s", SwarmNetworkIdFlag.EnvVar, "999"))
envVars = append(envVars, fmt.Sprintf("%s=%s", CorsStringFlag.EnvVar, "*"))
envVars = append(envVars, fmt.Sprintf("%s=%s", SwarmSyncEnabledFlag.EnvVar, "true"))
dir, err := ioutil.TempDir("", "bzztest")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
conf, account := getTestAccount(t, dir)
node := &testNode{Dir: dir}
flags := []string{
fmt.Sprintf("--%s", SwarmAccountFlag.Name), account.Address.String(),
"--ens-api", "",
"--datadir", dir,
"--ipcpath", conf.IPCPath,
}
//node.Cmd = runSwarm(t,flags...)
//node.Cmd.cmd.Env = envVars
//the above assignment does not work, so we need a custom Cmd here in order to pass envVars:
cmd := &exec.Cmd{
Path: reexec.Self(),
Args: append([]string{"swarm-test"}, flags...),
Stderr: os.Stderr,
Stdout: os.Stdout,
}
cmd.Env = envVars
//stdout, err := cmd.StdoutPipe()
//if err != nil {
// t.Fatal(err)
//}
//stdout = bufio.NewReader(stdout)
var stdin io.WriteCloser
if stdin, err = cmd.StdinPipe(); err != nil {
t.Fatal(err)
}
if err := cmd.Start(); err != nil {
t.Fatal(err)
}
//cmd.InputLine(testPassphrase)
io.WriteString(stdin, testPassphrase+"\n")
defer func() {
if t.Failed() {
node.Shutdown()
cmd.Process.Kill()
}
}()
// wait for the node to start
for start := time.Now(); time.Since(start) < 10*time.Second; time.Sleep(50 * time.Millisecond) {
node.Client, err = rpc.Dial(conf.IPCEndpoint())
if err == nil {
break
}
}
if node.Client == nil {
t.Fatal(err)
}
// load info
var info swarm.Info
if err := node.Client.Call(&info, "bzz_info"); err != nil {
t.Fatal(err)
}
if info.Port != httpPort {
t.Fatalf("Expected port to be %s, got %s", httpPort, info.Port)
}
if info.NetworkId != 999 {
t.Fatalf("Expected network ID to be %d, got %d", 999, info.NetworkId)
}
if info.Cors != "*" {
t.Fatalf("Expected Cors flag to be set to %s, got %s", "*", info.Cors)
}
if info.SyncEnabled != true {
t.Fatal("Expected Sync to be enabled, but is false")
}
node.Shutdown()
cmd.Process.Kill()
}
func TestCmdLineOverridesFile(t *testing.T) {
// assign ports
httpPort, err := assignTCPPort()
if err != nil {
t.Fatal(err)
}
//create a config file
//first, create a default conf
defaultConf := api.NewDefaultConfig()
//change some values in order to test if they have been loaded
defaultConf.SyncEnabled = false
defaultConf.NetworkId = 54
defaultConf.Port = "8588"
defaultConf.StoreParams.DbCapacity = 9000000
defaultConf.ChunkerParams.Branches = 64
defaultConf.HiveParams.CallInterval = 6000000000
defaultConf.Swap.Params.Strategy.AutoCashInterval = 600 * time.Second
defaultConf.SyncParams.KeyBufferSize = 512
//create a TOML file
out, err := tomlSettings.Marshal(&defaultConf)
if err != nil {
t.Fatalf("Error creating TOML file in TestFileOverride: %v", err)
}
//write file
f, err := ioutil.TempFile("", "testconfig.toml")
if err != nil {
t.Fatalf("Error writing TOML file in TestFileOverride: %v", err)
}
//write file
_, err = f.WriteString(string(out))
if err != nil {
t.Fatalf("Error writing TOML file in TestFileOverride: %v", err)
}
f.Sync()
dir, err := ioutil.TempDir("", "bzztest")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
conf, account := getTestAccount(t, dir)
node := &testNode{Dir: dir}
expectNetworkId := uint64(77)
flags := []string{
fmt.Sprintf("--%s", SwarmNetworkIdFlag.Name), "77",
fmt.Sprintf("--%s", SwarmPortFlag.Name), httpPort,
fmt.Sprintf("--%s", SwarmSyncEnabledFlag.Name),
fmt.Sprintf("--%s", SwarmTomlConfigPathFlag.Name), f.Name(),
fmt.Sprintf("--%s", SwarmAccountFlag.Name), account.Address.String(),
"--ens-api", "",
"--datadir", dir,
"--ipcpath", conf.IPCPath,
}
node.Cmd = runSwarm(t, flags...)
node.Cmd.InputLine(testPassphrase)
defer func() {
if t.Failed() {
node.Shutdown()
}
}()
// wait for the node to start
for start := time.Now(); time.Since(start) < 10*time.Second; time.Sleep(50 * time.Millisecond) {
node.Client, err = rpc.Dial(conf.IPCEndpoint())
if err == nil {
break
}
}
if node.Client == nil {
t.Fatal(err)
}
// load info
var info swarm.Info
if err := node.Client.Call(&info, "bzz_info"); err != nil {
t.Fatal(err)
}
if info.Port != httpPort {
t.Fatalf("Expected port to be %s, got %s", httpPort, info.Port)
}
if info.NetworkId != expectNetworkId {
t.Fatalf("Expected network ID to be %d, got %d", expectNetworkId, info.NetworkId)
}
if info.SyncEnabled != true {
t.Fatal("Expected Sync to be enabled, but is false")
}
if info.StoreParams.DbCapacity != 9000000 {
t.Fatalf("Expected network ID to be %d, got %d", 54, info.NetworkId)
}
if info.ChunkerParams.Branches != 64 {
t.Fatalf("Expected chunker params branches to be %d, got %d", 64, info.ChunkerParams.Branches)
}
if info.HiveParams.CallInterval != 6000000000 {
t.Fatalf("Expected HiveParams CallInterval to be %d, got %d", uint64(6000000000), uint64(info.HiveParams.CallInterval))
}
if info.Swap.Params.Strategy.AutoCashInterval != 600*time.Second {
t.Fatalf("Expected SwapParams AutoCashInterval to be %ds, got %d", 600, info.Swap.Params.Strategy.AutoCashInterval)
}
if info.SyncParams.KeyBufferSize != 512 {
t.Fatalf("Expected info.SyncParams.KeyBufferSize to be %d, got %d", 512, info.SyncParams.KeyBufferSize)
}
node.Shutdown()
}

229
cmd/swarm/main.go
View File

@ -27,7 +27,6 @@ import (
"strconv"
"strings"
"syscall"
"unicode"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/accounts/keystore"
@ -44,6 +43,7 @@ import (
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/swarm"
bzzapi "github.com/ethereum/go-ethereum/swarm/api"
"gopkg.in/urfave/cli.v1"
)
@ -62,44 +62,53 @@ var (
var (
ChequebookAddrFlag = cli.StringFlag{
Name: "chequebook",
Usage: "chequebook contract address",
Name: "chequebook",
Usage: "chequebook contract address",
EnvVar: SWARM_ENV_CHEQUEBOOK_ADDR,
}
SwarmAccountFlag = cli.StringFlag{
Name: "bzzaccount",
Usage: "Swarm account key file",
Name: "bzzaccount",
Usage: "Swarm account key file",
EnvVar: SWARM_ENV_ACCOUNT,
}
SwarmListenAddrFlag = cli.StringFlag{
Name: "httpaddr",
Usage: "Swarm HTTP API listening interface",
Name: "httpaddr",
Usage: "Swarm HTTP API listening interface",
EnvVar: SWARM_ENV_LISTEN_ADDR,
}
SwarmPortFlag = cli.StringFlag{
Name: "bzzport",
Usage: "Swarm local http api port",
Name: "bzzport",
Usage: "Swarm local http api port",
EnvVar: SWARM_ENV_PORT,
}
SwarmNetworkIdFlag = cli.IntFlag{
Name: "bzznetworkid",
Usage: "Network identifier (integer, default 3=swarm testnet)",
Name: "bzznetworkid",
Usage: "Network identifier (integer, default 3=swarm testnet)",
EnvVar: SWARM_ENV_NETWORK_ID,
}
SwarmConfigPathFlag = cli.StringFlag{
Name: "bzzconfig",
Usage: "Swarm config file path (datadir/bzz)",
Usage: "DEPRECATED: please use --config path/to/TOML-file",
}
SwarmSwapEnabledFlag = cli.BoolFlag{
Name: "swap",
Usage: "Swarm SWAP enabled (default false)",
Name: "swap",
Usage: "Swarm SWAP enabled (default false)",
EnvVar: SWARM_ENV_SWAP_ENABLE,
}
SwarmSwapAPIFlag = cli.StringFlag{
Name: "swap-api",
Usage: "URL of the Ethereum API provider to use to settle SWAP payments",
Name: "swap-api",
Usage: "URL of the Ethereum API provider to use to settle SWAP payments",
EnvVar: SWARM_ENV_SWAP_API,
}
SwarmSyncEnabledFlag = cli.BoolTFlag{
Name: "sync",
Usage: "Swarm Syncing enabled (default true)",
Name: "sync",
Usage: "Swarm Syncing enabled (default true)",
EnvVar: SWARM_ENV_SYNC_ENABLE,
}
EnsAPIFlag = cli.StringSliceFlag{
Name: "ens-api",
Usage: "ENS API endpoint for a TLD and with contract address, can be repeated, format [tld:][contract-addr@]url",
Name: "ens-api",
Usage: "ENS API endpoint for a TLD and with contract address, can be repeated, format [tld:][contract-addr@]url",
EnvVar: SWARM_ENV_ENS_API,
}
SwarmApiFlag = cli.StringFlag{
Name: "bzzapi",
@ -127,8 +136,9 @@ var (
Usage: "force mime type",
}
CorsStringFlag = cli.StringFlag{
Name: "corsdomain",
Usage: "Domain on which to send Access-Control-Allow-Origin header (multiple domains can be supplied separated by a ',')",
Name: "corsdomain",
Usage: "Domain on which to send Access-Control-Allow-Origin header (multiple domains can be supplied separated by a ',')",
EnvVar: SWARM_ENV_CORS,
}
// the following flags are deprecated and should be removed in the future
@ -142,6 +152,12 @@ var (
}
)
//declare a few constant error messages, useful for later error check comparisons in test
var (
SWARM_ERR_NO_BZZACCOUNT = "bzzaccount option is required but not set; check your config file, command line or environment variables"
SWARM_ERR_SWAP_SET_NO_API = "SWAP is enabled but --swap-api is not set"
)
var defaultNodeConfig = node.DefaultConfig
// This init function sets defaults so cmd/swarm can run alongside geth.
@ -297,6 +313,8 @@ Remove corrupt entries from a local chunk database.
DEPRECATED: use 'swarm db clean'.
`,
},
// See config.go
DumpConfigCommand,
}
sort.Sort(cli.CommandsByName(app.Commands))
@ -319,6 +337,7 @@ DEPRECATED: use 'swarm db clean'.
// bzzd-specific flags
CorsStringFlag,
EnsAPIFlag,
SwarmTomlConfigPathFlag,
SwarmConfigPathFlag,
SwarmSwapEnabledFlag,
SwarmSwapAPIFlag,
@ -372,19 +391,32 @@ func version(ctx *cli.Context) error {
}
func bzzd(ctx *cli.Context) error {
// exit if the deprecated --ethapi flag is set
if ctx.GlobalString(DeprecatedEthAPIFlag.Name) != "" {
utils.Fatalf("--ethapi is no longer a valid command line flag, please use --ens-api and/or --swap-api.")
//build a valid bzzapi.Config from all available sources:
//default config, file config, command line and env vars
bzzconfig, err := buildConfig(ctx)
if err != nil {
utils.Fatalf("unable to configure swarm: %v", err)
}
cfg := defaultNodeConfig
//geth only supports --datadir via command line
//in order to be consistent within swarm, if we pass --datadir via environment variable
//or via config file, we get the same directory for geth and swarm
if _, err := os.Stat(bzzconfig.Path); err == nil {
cfg.DataDir = bzzconfig.Path
}
//setup the ethereum node
utils.SetNodeConfig(ctx, &cfg)
stack, err := node.New(&cfg)
if err != nil {
utils.Fatalf("can't create node: %v", err)
}
registerBzzService(ctx, stack)
//a few steps need to be done after the config phase is completed,
//due to overriding behavior
initSwarmNode(bzzconfig, stack, ctx)
//register BZZ as node.Service in the ethereum node
registerBzzService(bzzconfig, ctx, stack)
//start the node
utils.StartNode(stack)
go func() {
@ -396,13 +428,12 @@ func bzzd(ctx *cli.Context) error {
stack.Stop()
}()
networkId := ctx.GlobalUint64(SwarmNetworkIdFlag.Name)
// Add bootnodes as initial peers.
if ctx.GlobalIsSet(utils.BootnodesFlag.Name) {
bootnodes := strings.Split(ctx.GlobalString(utils.BootnodesFlag.Name), ",")
if bzzconfig.BootNodes != "" {
bootnodes := strings.Split(bzzconfig.BootNodes, ",")
injectBootnodes(stack.Server(), bootnodes)
} else {
if networkId == 3 {
if bzzconfig.NetworkId == 3 {
injectBootnodes(stack.Server(), testbetBootNodes)
}
}
@ -411,139 +442,35 @@ func bzzd(ctx *cli.Context) error {
return nil
}
func registerBzzService(ctx *cli.Context, stack *node.Node) {
prvkey := getAccount(ctx, stack)
chbookaddr := common.HexToAddress(ctx.GlobalString(ChequebookAddrFlag.Name))
bzzdir := ctx.GlobalString(SwarmConfigPathFlag.Name)
if bzzdir == "" {
bzzdir = stack.InstanceDir()
}
bzzconfig, err := bzzapi.NewConfig(bzzdir, chbookaddr, prvkey, ctx.GlobalUint64(SwarmNetworkIdFlag.Name))
if err != nil {
utils.Fatalf("unable to configure swarm: %v", err)
}
bzzport := ctx.GlobalString(SwarmPortFlag.Name)
if len(bzzport) > 0 {
bzzconfig.Port = bzzport
}
if bzzaddr := ctx.GlobalString(SwarmListenAddrFlag.Name); bzzaddr != "" {
bzzconfig.ListenAddr = bzzaddr
}
swapEnabled := ctx.GlobalBool(SwarmSwapEnabledFlag.Name)
syncEnabled := ctx.GlobalBoolT(SwarmSyncEnabledFlag.Name)
swapapi := ctx.GlobalString(SwarmSwapAPIFlag.Name)
if swapEnabled && swapapi == "" {
utils.Fatalf("SWAP is enabled but --swap-api is not set")
}
ensAPIs := ctx.GlobalStringSlice(EnsAPIFlag.Name)
ensAddr := ctx.GlobalString(DeprecatedEnsAddrFlag.Name)
if ensAddr != "" {
log.Warn("--ens-addr is no longer a valid command line flag, please use --ens-api to specify contract address.")
}
cors := ctx.GlobalString(CorsStringFlag.Name)
func registerBzzService(bzzconfig *bzzapi.Config, ctx *cli.Context, stack *node.Node) {
//define the swarm service boot function
boot := func(ctx *node.ServiceContext) (node.Service, error) {
var swapClient *ethclient.Client
if swapapi != "" {
log.Info("connecting to SWAP API", "url", swapapi)
swapClient, err = ethclient.Dial(swapapi)
var err error
if bzzconfig.SwapApi != "" {
log.Info("connecting to SWAP API", "url", bzzconfig.SwapApi)
swapClient, err = ethclient.Dial(bzzconfig.SwapApi)
if err != nil {
return nil, fmt.Errorf("error connecting to SWAP API %s: %s", swapapi, err)
return nil, fmt.Errorf("error connecting to SWAP API %s: %s", bzzconfig.SwapApi, err)
}
}
ensClientConfigs := []swarm.ENSClientConfig{}
switch len(ensAPIs) {
case 0:
ensClientConfigs = append(ensClientConfigs, swarm.ENSClientConfig{
Endpoint: node.DefaultIPCEndpoint("geth"),
ContractAddress: ensAddr,
})
case 1:
// Check if "--ens-api ''" is specified in order to disable ENS.
if ensAPIs[0] == "" {
break
}
// Check if only one --ens-api is specified in order to use --ens-addr value
// to preserve the backward compatibility with single --ens-api flag.
c := parseFlagEnsAPI(ensAPIs[0])
if ensAddr != "" {
// If contract address is specified in both cases, check for conflict.
if c.ContractAddress != "" && ensAddr != c.ContractAddress {
utils.Fatalf("--ens-addr flag in conflict with --ens-api flag contract address")
}
c.ContractAddress = ensAddr
}
ensClientConfigs = append(ensClientConfigs, c)
default:
// Backward compatibility with single --ens-api flag and --ens-addr is preserved.
// Check for case where multiple --ens-api flags are set with --ens-addr where
// the specified contract address is not clear to which api belongs.
if ensAddr != "" {
utils.Fatalf("--ens-addr flag can not be used with multiple --ens-api flags")
}
for _, s := range ensAPIs {
if s != "" {
ensClientConfigs = append(ensClientConfigs, parseFlagEnsAPI(s))
}
}
}
if len(ensClientConfigs) == 0 {
log.Warn("No ENS, please specify non-empty --ens-api to use domain name resolution")
}
return swarm.NewSwarm(ctx, swapClient, ensClientConfigs, bzzconfig, swapEnabled, syncEnabled, cors)
return swarm.NewSwarm(ctx, swapClient, bzzconfig)
}
//register within the ethereum node
if err := stack.Register(boot); err != nil {
utils.Fatalf("Failed to register the Swarm service: %v", err)
}
}
// parseFlagEnsAPI parses EnsAPIFlag according to format
// [tld:][contract-addr@]url and returns ENSClientConfig structure
// with endpoint, contract address and TLD.
func parseFlagEnsAPI(s string) swarm.ENSClientConfig {
isAllLetterString := func(s string) bool {
for _, r := range s {
if !unicode.IsLetter(r) {
return false
}
}
return true
}
endpoint := s
var addr, tld string
if i := strings.Index(endpoint, ":"); i > 0 {
if isAllLetterString(endpoint[:i]) && len(endpoint) > i+2 && endpoint[i+1:i+3] != "//" {
tld = endpoint[:i]
endpoint = endpoint[i+1:]
}
}
if i := strings.Index(endpoint, "@"); i > 0 {
addr = endpoint[:i]
endpoint = endpoint[i+1:]
}
return swarm.ENSClientConfig{
Endpoint: endpoint,
ContractAddress: addr,
TLD: tld,
}
}
func getAccount(ctx *cli.Context, stack *node.Node) *ecdsa.PrivateKey {
keyid := ctx.GlobalString(SwarmAccountFlag.Name)
if keyid == "" {
utils.Fatalf("Option %q is required", SwarmAccountFlag.Name)
func getAccount(bzzaccount string, ctx *cli.Context, stack *node.Node) *ecdsa.PrivateKey {
//an account is mandatory
if bzzaccount == "" {
utils.Fatalf(SWARM_ERR_NO_BZZACCOUNT)
}
// Try to load the arg as a hex key file.
if key, err := crypto.LoadECDSA(keyid); err == nil {
if key, err := crypto.LoadECDSA(bzzaccount); err == nil {
log.Info("Swarm account key loaded", "address", crypto.PubkeyToAddress(key.PublicKey))
return key
}
@ -551,7 +478,7 @@ func getAccount(ctx *cli.Context, stack *node.Node) *ecdsa.PrivateKey {
am := stack.AccountManager()
ks := am.Backends(keystore.KeyStoreType)[0].(*keystore.KeyStore)
return decryptStoreAccount(ks, keyid, utils.MakePasswordList(ctx))
return decryptStoreAccount(ks, bzzaccount, utils.MakePasswordList(ctx))
}
func decryptStoreAccount(ks *keystore.KeyStore, account string, passwords []string) *ecdsa.PrivateKey {
@ -569,7 +496,7 @@ func decryptStoreAccount(ks *keystore.KeyStore, account string, passwords []stri
utils.Fatalf("Can't find swarm account key %s", account)
}
if err != nil {
utils.Fatalf("Can't find swarm account key: %v", err)
utils.Fatalf("Can't find swarm account key: %v - Is the provided bzzaccount(%s) from the right datadir/Path?", err, account)
}
keyjson, err := ioutil.ReadFile(a.URL.Path)
if err != nil {

141
cmd/swarm/main_test.go
View File

@ -1,141 +0,0 @@
// Copyright 2017 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package main
import (
"testing"
"github.com/ethereum/go-ethereum/swarm"
)
func TestParseFlagEnsAPI(t *testing.T) {
for _, x := range []struct {
description string
value string
config swarm.ENSClientConfig
}{
{
description: "IPC endpoint",
value: "/data/testnet/geth.ipc",
config: swarm.ENSClientConfig{
Endpoint: "/data/testnet/geth.ipc",
},
},
{
description: "HTTP endpoint",
value: "http://127.0.0.1:1234",
config: swarm.ENSClientConfig{
Endpoint: "http://127.0.0.1:1234",
},
},
{
description: "WS endpoint",
value: "ws://127.0.0.1:1234",
config: swarm.ENSClientConfig{
Endpoint: "ws://127.0.0.1:1234",
},
},
{
description: "IPC Endpoint and TLD",
value: "test:/data/testnet/geth.ipc",
config: swarm.ENSClientConfig{
Endpoint: "/data/testnet/geth.ipc",
TLD: "test",
},
},
{
description: "HTTP endpoint and TLD",
value: "test:http://127.0.0.1:1234",
config: swarm.ENSClientConfig{
Endpoint: "http://127.0.0.1:1234",
TLD: "test",
},
},
{
description: "WS endpoint and TLD",
value: "test:ws://127.0.0.1:1234",
config: swarm.ENSClientConfig{
Endpoint: "ws://127.0.0.1:1234",
TLD: "test",
},
},
{
description: "IPC Endpoint and contract address",
value: "314159265dD8dbb310642f98f50C066173C1259b@/data/testnet/geth.ipc",
config: swarm.ENSClientConfig{
Endpoint: "/data/testnet/geth.ipc",
ContractAddress: "314159265dD8dbb310642f98f50C066173C1259b",
},
},
{
description: "HTTP endpoint and contract address",
value: "314159265dD8dbb310642f98f50C066173C1259b@http://127.0.0.1:1234",
config: swarm.ENSClientConfig{
Endpoint: "http://127.0.0.1:1234",
ContractAddress: "314159265dD8dbb310642f98f50C066173C1259b",
},
},
{
description: "WS endpoint and contract address",
value: "314159265dD8dbb310642f98f50C066173C1259b@ws://127.0.0.1:1234",
config: swarm.ENSClientConfig{
Endpoint: "ws://127.0.0.1:1234",
ContractAddress: "314159265dD8dbb310642f98f50C066173C1259b",
},
},
{
description: "IPC Endpoint, TLD and contract address",
value: "test:314159265dD8dbb310642f98f50C066173C1259b@/data/testnet/geth.ipc",
config: swarm.ENSClientConfig{
Endpoint: "/data/testnet/geth.ipc",
ContractAddress: "314159265dD8dbb310642f98f50C066173C1259b",
TLD: "test",
},
},
{
description: "HTTP endpoint, TLD and contract address",
value: "eth:314159265dD8dbb310642f98f50C066173C1259b@http://127.0.0.1:1234",
config: swarm.ENSClientConfig{
Endpoint: "http://127.0.0.1:1234",
ContractAddress: "314159265dD8dbb310642f98f50C066173C1259b",
TLD: "eth",
},
},
{
description: "WS endpoint, TLD and contract address",
value: "eth:314159265dD8dbb310642f98f50C066173C1259b@ws://127.0.0.1:1234",
config: swarm.ENSClientConfig{
Endpoint: "ws://127.0.0.1:1234",
ContractAddress: "314159265dD8dbb310642f98f50C066173C1259b",
TLD: "eth",
},
},
} {
t.Run(x.description, func(t *testing.T) {
config := parseFlagEnsAPI(x.value)
if config.Endpoint != x.config.Endpoint {
t.Errorf("expected Endpoint %q, got %q", x.config.Endpoint, config.Endpoint)
}
if config.ContractAddress != x.config.ContractAddress {
t.Errorf("expected ContractAddress %q, got %q", x.config.ContractAddress, config.ContractAddress)
}
if config.TLD != x.config.TLD {
t.Errorf("expected TLD %q, got %q", x.config.TLD, config.TLD)
}
})
}
}

8
cmd/swarm/manifest.go
View File

@ -30,6 +30,8 @@ import (
"gopkg.in/urfave/cli.v1"
)
const bzzManifestJSON = "application/bzz-manifest+json"
func add(ctx *cli.Context) {
args := ctx.Args()
if len(args) < 3 {
@ -145,7 +147,7 @@ func addEntryToManifest(ctx *cli.Context, mhash, path, hash, ctype string) strin
if path == entry.Path {
utils.Fatalf("Path %s already present, not adding anything", path)
} else {
if entry.ContentType == "application/bzz-manifest+json" {
if entry.ContentType == bzzManifestJSON {
prfxlen := strings.HasPrefix(path, entry.Path)
if prfxlen && len(path) > len(longestPathEntry.Path) {
longestPathEntry = entry
@ -207,7 +209,7 @@ func updateEntryInManifest(ctx *cli.Context, mhash, path, hash, ctype string) st
if path == entry.Path {
newEntry = entry
} else {
if entry.ContentType == "application/bzz-manifest+json" {
if entry.ContentType == bzzManifestJSON {
prfxlen := strings.HasPrefix(path, entry.Path)
if prfxlen && len(path) > len(longestPathEntry.Path) {
longestPathEntry = entry
@ -281,7 +283,7 @@ func removeEntryFromManifest(ctx *cli.Context, mhash, path string) string {
if path == entry.Path {
entryToRemove = entry
} else {
if entry.ContentType == "application/bzz-manifest+json" {
if entry.ContentType == bzzManifestJSON {
prfxlen := strings.HasPrefix(path, entry.Path)
if prfxlen && len(path) > len(longestPathEntry.Path) {
longestPathEntry = entry

17
cmd/swarm/run_test.go
View File

@ -27,6 +27,7 @@ import (
"time"
"github.com/docker/docker/pkg/reexec"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/internal/cmdtest"
"github.com/ethereum/go-ethereum/node"
@ -156,9 +157,9 @@ type testNode struct {
const testPassphrase = "swarm-test-passphrase"
func newTestNode(t *testing.T, dir string) *testNode {
func getTestAccount(t *testing.T, dir string) (conf *node.Config, account accounts.Account) {
// create key
conf := &node.Config{
conf = &node.Config{
DataDir: dir,
IPCPath: "bzzd.ipc",
NoUSB: true,
@ -167,18 +168,24 @@ func newTestNode(t *testing.T, dir string) *testNode {
if err != nil {
t.Fatal(err)
}
account, err := n.AccountManager().Backends(keystore.KeyStoreType)[0].(*keystore.KeyStore).NewAccount(testPassphrase)
account, err = n.AccountManager().Backends(keystore.KeyStoreType)[0].(*keystore.KeyStore).NewAccount(testPassphrase)
if err != nil {
t.Fatal(err)
}
node := &testNode{Dir: dir}
// use a unique IPCPath when running tests on Windows
if runtime.GOOS == "windows" {
conf.IPCPath = fmt.Sprintf("bzzd-%s.ipc", account.Address.String())
}
return conf, account
}
func newTestNode(t *testing.T, dir string) *testNode {
conf, account := getTestAccount(t, dir)
node := &testNode{Dir: dir}
// assign ports
httpPort, err := assignTCPPort()
if err != nil {