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cmd/swarm: add config file (#15548)

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This commit adds a TOML configuration option to swarm. It reuses
the TOML configuration structure used in geth with swarm
customized items.

The commit:

* Adds a "dumpconfig" command to the swarm executable which
  allows printing the (default) configuration to stdout, which
  then can be redirected to a file in order to customize it.
* Adds a "--config <file>" option to the swarm executable which will
  allow to load a configuration file in TOML format from the
  specified location in order to initialize the Swarm node The
  override priorities are like follows: environment variables
  override command line arguments override config file override
  default config.
This commit is contained in:
holisticode
2017-12-11 16:56:06 -05:00
committed by Felix Lange
parent 1a32bdf92c
commit 32516c768e
13 changed files with 1015 additions and 292 deletions
Download Patch File Download Diff File Expand all files Collapse all files

321
cmd/swarm/config.go Normal file
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@ -0,0 +1,321 @@
// 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"
"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)
}
//EnsApi can be set to "", so can't check for empty string, as it is allowed!
if ctx.GlobalIsSet(EnsAPIFlag.Name) {
currentConfig.EnsApi = ctx.GlobalString(EnsAPIFlag.Name)
}
if ensaddr := ctx.GlobalString(EnsAddrFlag.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)
}
//EnsApi 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 {
currentConfig.EnsApi = ensapi
}
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.")
}
}
//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()
}

172
cmd/swarm/main.go
View File

@ -48,6 +48,7 @@ import (
"github.com/ethereum/go-ethereum/rpc"
"github.com/ethereum/go-ethereum/swarm"
bzzapi "github.com/ethereum/go-ethereum/swarm/api"
"gopkg.in/urfave/cli.v1"
)
@ -66,49 +67,58 @@ 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.StringFlag{
Name: "ens-api",
Usage: "URL of the Ethereum API provider to use for ENS record lookups",
Value: node.DefaultIPCEndpoint("geth"),
Name: "ens-api",
Usage: "URL of the Ethereum API provider to use for ENS record lookups",
EnvVar: SWARM_ENV_ENS_API,
}
EnsAddrFlag = cli.StringFlag{
Name: "ens-addr",
Usage: "ENS contract address (default is detected as testnet or mainnet using --ens-api)",
Name: "ens-addr",
Usage: "ENS contract address (default is detected as testnet or mainnet using --ens-api)",
EnvVar: SWARM_ENV_ENS_ADDR,
}
SwarmApiFlag = cli.StringFlag{
Name: "bzzapi",
@ -136,8 +146,9 @@ 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
@ -147,6 +158,12 @@ 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.
@ -302,6 +319,8 @@ Remove corrupt entries from a local chunk database.
DEPRECATED: use 'swarm db clean'.
`,
},
// See config.go
DumpConfigCommand,
}
sort.Sort(cli.CommandsByName(app.Commands))
@ -325,6 +344,7 @@ DEPRECATED: use 'swarm db clean'.
CorsStringFlag,
EnsAPIFlag,
EnsAddrFlag,
SwarmTomlConfigPathFlag,
SwarmConfigPathFlag,
SwarmSwapEnabledFlag,
SwarmSwapAPIFlag,
@ -377,19 +397,32 @@ 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() {
@ -401,13 +434,12 @@ 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)
}
}
@ -448,61 +480,31 @@ func detectEnsAddr(client *rpc.Client) (common.Address, error) {
}
}
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")
}
ensapi := ctx.GlobalString(EnsAPIFlag.Name)
ensAddr := ctx.GlobalString(EnsAddrFlag.Name)
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)
}
}
var ensClient *ethclient.Client
if ensapi != "" {
log.Info("connecting to ENS API", "url", ensapi)
client, err := rpc.Dial(ensapi)
if bzzconfig.EnsApi != "" {
log.Info("connecting to ENS API", "url", bzzconfig.EnsApi)
client, err := rpc.Dial(bzzconfig.EnsApi)
if err != nil {
return nil, fmt.Errorf("error connecting to ENS API %s: %s", ensapi, err)
return nil, fmt.Errorf("error connecting to ENS API %s: %s", bzzconfig.EnsApi, err)
}
ensClient = ethclient.NewClient(client)
if ensAddr != "" {
bzzconfig.EnsRoot = common.HexToAddress(ensAddr)
} else {
//no ENS root address set yet
if bzzconfig.EnsRoot == (common.Address{}) {
ensAddr, err := detectEnsAddr(client)
if err == nil {
bzzconfig.EnsRoot = ensAddr
@ -512,21 +514,21 @@ func registerBzzService(ctx *cli.Context, stack *node.Node) {
}
}
return swarm.NewSwarm(ctx, swapClient, ensClient, bzzconfig, swapEnabled, syncEnabled, cors)
return swarm.NewSwarm(ctx, swapClient, ensClient, bzzconfig, bzzconfig.SwapEnabled, bzzconfig.SyncEnabled, bzzconfig.Cors)
}
//register within the ethereum node
if err := stack.Register(boot); err != nil {
utils.Fatalf("Failed to register the Swarm service: %v", err)
}
}
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
}
@ -534,7 +536,7 @@ 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 {
@ -552,7 +554,7 @@ 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 {

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 {