plugeth/cmd/swarm/main.go

604 lines
18 KiB
Go

// Copyright 2016 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 (
"context"
"crypto/ecdsa"
"fmt"
"io/ioutil"
"math/big"
"os"
"os/signal"
"runtime"
"sort"
"strconv"
"strings"
"syscall"
"time"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/console"
"github.com/ethereum/go-ethereum/contracts/ens"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/ethereum/go-ethereum/internal/debug"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/discover"
"github.com/ethereum/go-ethereum/params"
"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"
)
const clientIdentifier = "swarm"
var (
gitCommit string // Git SHA1 commit hash of the release (set via linker flags)
testbetBootNodes = []string{
"enode://ec8ae764f7cb0417bdfb009b9d0f18ab3818a3a4e8e7c67dd5f18971a93510a2e6f43cd0b69a27e439a9629457ea804104f37c85e41eed057d3faabbf7744cdf@13.74.157.139:30429",
"enode://c2e1fceb3bf3be19dff71eec6cccf19f2dbf7567ee017d130240c670be8594bc9163353ca55dd8df7a4f161dd94b36d0615c17418b5a3cdcbb4e9d99dfa4de37@13.74.157.139:30430",
"enode://fe29b82319b734ce1ec68b84657d57145fee237387e63273989d354486731e59f78858e452ef800a020559da22dcca759536e6aa5517c53930d29ce0b1029286@13.74.157.139:30431",
"enode://1d7187e7bde45cf0bee489ce9852dd6d1a0d9aa67a33a6b8e6db8a4fbc6fcfa6f0f1a5419343671521b863b187d1c73bad3603bae66421d157ffef357669ddb8@13.74.157.139:30432",
"enode://0e4cba800f7b1ee73673afa6a4acead4018f0149d2e3216be3f133318fd165b324cd71b81fbe1e80deac8dbf56e57a49db7be67f8b9bc81bd2b7ee496434fb5d@13.74.157.139:30433",
}
)
var (
ChequebookAddrFlag = cli.StringFlag{
Name: "chequebook",
Usage: "chequebook contract address",
}
SwarmAccountFlag = cli.StringFlag{
Name: "bzzaccount",
Usage: "Swarm account key file",
}
SwarmListenAddrFlag = cli.StringFlag{
Name: "httpaddr",
Usage: "Swarm HTTP API listening interface",
}
SwarmPortFlag = cli.StringFlag{
Name: "bzzport",
Usage: "Swarm local http api port",
}
SwarmNetworkIdFlag = cli.IntFlag{
Name: "bzznetworkid",
Usage: "Network identifier (integer, default 3=swarm testnet)",
}
SwarmConfigPathFlag = cli.StringFlag{
Name: "bzzconfig",
Usage: "Swarm config file path (datadir/bzz)",
}
SwarmSwapEnabledFlag = cli.BoolFlag{
Name: "swap",
Usage: "Swarm SWAP enabled (default false)",
}
SwarmSwapAPIFlag = cli.StringFlag{
Name: "swap-api",
Usage: "URL of the Ethereum API provider to use to settle SWAP payments",
}
SwarmSyncEnabledFlag = cli.BoolTFlag{
Name: "sync",
Usage: "Swarm Syncing enabled (default true)",
}
EnsAPIFlag = cli.StringFlag{
Name: "ens-api",
Usage: "URL of the Ethereum API provider to use for ENS record lookups",
Value: node.DefaultIPCEndpoint("geth"),
}
EnsAddrFlag = cli.StringFlag{
Name: "ens-addr",
Usage: "ENS contract address (default is detected as testnet or mainnet using --ens-api)",
}
SwarmApiFlag = cli.StringFlag{
Name: "bzzapi",
Usage: "Swarm HTTP endpoint",
Value: "http://127.0.0.1:8500",
}
SwarmRecursiveUploadFlag = cli.BoolFlag{
Name: "recursive",
Usage: "Upload directories recursively",
}
SwarmWantManifestFlag = cli.BoolTFlag{
Name: "manifest",
Usage: "Automatic manifest upload",
}
SwarmUploadDefaultPath = cli.StringFlag{
Name: "defaultpath",
Usage: "path to file served for empty url path (none)",
}
SwarmUpFromStdinFlag = cli.BoolFlag{
Name: "stdin",
Usage: "reads data to be uploaded from stdin",
}
SwarmUploadMimeType = cli.StringFlag{
Name: "mime",
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 ',')",
}
// the following flags are deprecated and should be removed in the future
DeprecatedEthAPIFlag = cli.StringFlag{
Name: "ethapi",
Usage: "DEPRECATED: please use --ens-api and --swap-api",
}
)
var defaultNodeConfig = node.DefaultConfig
// This init function sets defaults so cmd/swarm can run alongside geth.
func init() {
defaultNodeConfig.Name = clientIdentifier
defaultNodeConfig.Version = params.VersionWithCommit(gitCommit)
defaultNodeConfig.P2P.ListenAddr = ":30399"
defaultNodeConfig.IPCPath = "bzzd.ipc"
// Set flag defaults for --help display.
utils.ListenPortFlag.Value = 30399
}
var app = utils.NewApp(gitCommit, "Ethereum Swarm")
// This init function creates the cli.App.
func init() {
app.Action = bzzd
app.HideVersion = true // we have a command to print the version
app.Copyright = "Copyright 2013-2016 The go-ethereum Authors"
app.Commands = []cli.Command{
{
Action: version,
Name: "version",
Usage: "Print version numbers",
ArgsUsage: " ",
Description: `
The output of this command is supposed to be machine-readable.
`,
},
{
Action: upload,
Name: "up",
Usage: "upload a file or directory to swarm using the HTTP API",
ArgsUsage: " <file>",
Description: `
"upload a file or directory to swarm using the HTTP API and prints the root hash",
`,
},
{
Action: list,
Name: "ls",
Usage: "list files and directories contained in a manifest",
ArgsUsage: " <manifest> [<prefix>]",
Description: `
Lists files and directories contained in a manifest.
`,
},
{
Action: hash,
Name: "hash",
Usage: "print the swarm hash of a file or directory",
ArgsUsage: " <file>",
Description: `
Prints the swarm hash of file or directory.
`,
},
{
Name: "manifest",
Usage: "update a MANIFEST",
ArgsUsage: "manifest COMMAND",
Description: `
Updates a MANIFEST by adding/removing/updating the hash of a path.
`,
Subcommands: []cli.Command{
{
Action: add,
Name: "add",
Usage: "add a new path to the manifest",
ArgsUsage: "<MANIFEST> <path> <hash> [<content-type>]",
Description: `
Adds a new path to the manifest
`,
},
{
Action: update,
Name: "update",
Usage: "update the hash for an already existing path in the manifest",
ArgsUsage: "<MANIFEST> <path> <newhash> [<newcontent-type>]",
Description: `
Update the hash for an already existing path in the manifest
`,
},
{
Action: remove,
Name: "remove",
Usage: "removes a path from the manifest",
ArgsUsage: "<MANIFEST> <path>",
Description: `
Removes a path from the manifest
`,
},
},
},
{
Name: "db",
Usage: "manage the local chunk database",
ArgsUsage: "db COMMAND",
Description: `
Manage the local chunk database.
`,
Subcommands: []cli.Command{
{
Action: dbExport,
Name: "export",
Usage: "export a local chunk database as a tar archive (use - to send to stdout)",
ArgsUsage: "<chunkdb> <file>",
Description: `
Export a local chunk database as a tar archive (use - to send to stdout).
swarm db export ~/.ethereum/swarm/bzz-KEY/chunks chunks.tar
The export may be quite large, consider piping the output through the Unix
pv(1) tool to get a progress bar:
swarm db export ~/.ethereum/swarm/bzz-KEY/chunks - | pv > chunks.tar
`,
},
{
Action: dbImport,
Name: "import",
Usage: "import chunks from a tar archive into a local chunk database (use - to read from stdin)",
ArgsUsage: "<chunkdb> <file>",
Description: `
Import chunks from a tar archive into a local chunk database (use - to read from stdin).
swarm db import ~/.ethereum/swarm/bzz-KEY/chunks chunks.tar
The import may be quite large, consider piping the input through the Unix
pv(1) tool to get a progress bar:
pv chunks.tar | swarm db import ~/.ethereum/swarm/bzz-KEY/chunks -
`,
},
{
Action: dbClean,
Name: "clean",
Usage: "remove corrupt entries from a local chunk database",
ArgsUsage: "<chunkdb>",
Description: `
Remove corrupt entries from a local chunk database.
`,
},
},
},
{
Action: func(ctx *cli.Context) {
utils.Fatalf("ERROR: 'swarm cleandb' has been removed, please use 'swarm db clean'.")
},
Name: "cleandb",
Usage: "DEPRECATED: use 'swarm db clean'",
ArgsUsage: " ",
Description: `
DEPRECATED: use 'swarm db clean'.
`,
},
}
sort.Sort(cli.CommandsByName(app.Commands))
app.Flags = []cli.Flag{
utils.IdentityFlag,
utils.DataDirFlag,
utils.BootnodesFlag,
utils.KeyStoreDirFlag,
utils.ListenPortFlag,
utils.NoDiscoverFlag,
utils.DiscoveryV5Flag,
utils.NetrestrictFlag,
utils.NodeKeyFileFlag,
utils.NodeKeyHexFlag,
utils.MaxPeersFlag,
utils.NATFlag,
utils.IPCDisabledFlag,
utils.IPCPathFlag,
utils.PasswordFileFlag,
// bzzd-specific flags
CorsStringFlag,
EnsAPIFlag,
EnsAddrFlag,
SwarmConfigPathFlag,
SwarmSwapEnabledFlag,
SwarmSwapAPIFlag,
SwarmSyncEnabledFlag,
SwarmListenAddrFlag,
SwarmPortFlag,
SwarmAccountFlag,
SwarmNetworkIdFlag,
ChequebookAddrFlag,
// upload flags
SwarmApiFlag,
SwarmRecursiveUploadFlag,
SwarmWantManifestFlag,
SwarmUploadDefaultPath,
SwarmUpFromStdinFlag,
SwarmUploadMimeType,
//deprecated flags
DeprecatedEthAPIFlag,
}
app.Flags = append(app.Flags, debug.Flags...)
app.Before = func(ctx *cli.Context) error {
runtime.GOMAXPROCS(runtime.NumCPU())
return debug.Setup(ctx)
}
app.After = func(ctx *cli.Context) error {
debug.Exit()
return nil
}
}
func main() {
if err := app.Run(os.Args); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}
func version(ctx *cli.Context) error {
fmt.Println(strings.Title(clientIdentifier))
fmt.Println("Version:", params.Version)
if gitCommit != "" {
fmt.Println("Git Commit:", gitCommit)
}
fmt.Println("Network Id:", ctx.GlobalInt(utils.NetworkIdFlag.Name))
fmt.Println("Go Version:", runtime.Version())
fmt.Println("OS:", runtime.GOOS)
fmt.Printf("GOPATH=%s\n", os.Getenv("GOPATH"))
fmt.Printf("GOROOT=%s\n", runtime.GOROOT())
return nil
}
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.")
}
cfg := defaultNodeConfig
utils.SetNodeConfig(ctx, &cfg)
stack, err := node.New(&cfg)
if err != nil {
utils.Fatalf("can't create node: %v", err)
}
registerBzzService(ctx, stack)
utils.StartNode(stack)
go func() {
sigc := make(chan os.Signal, 1)
signal.Notify(sigc, syscall.SIGTERM)
defer signal.Stop(sigc)
<-sigc
log.Info("Got sigterm, shutting swarm down...")
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), ",")
injectBootnodes(stack.Server(), bootnodes)
} else {
if networkId == 3 {
injectBootnodes(stack.Server(), testbetBootNodes)
}
}
stack.Wait()
return nil
}
// detectEnsAddr determines the ENS contract address by getting both the
// version and genesis hash using the client and matching them to either
// mainnet or testnet addresses
func detectEnsAddr(client *rpc.Client) (common.Address, error) {
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
var version string
if err := client.CallContext(ctx, &version, "net_version"); err != nil {
return common.Address{}, err
}
block, err := ethclient.NewClient(client).BlockByNumber(ctx, big.NewInt(0))
if err != nil {
return common.Address{}, err
}
switch {
case version == "1" && block.Hash() == params.MainnetGenesisHash:
log.Info("using Mainnet ENS contract address", "addr", ens.MainNetAddress)
return ens.MainNetAddress, nil
case version == "3" && block.Hash() == params.TestnetGenesisHash:
log.Info("using Testnet ENS contract address", "addr", ens.TestNetAddress)
return ens.TestNetAddress, nil
default:
return common.Address{}, fmt.Errorf("unknown version and genesis hash: %s %s", version, block.Hash())
}
}
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)
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)
if err != nil {
return nil, fmt.Errorf("error connecting to SWAP API %s: %s", swapapi, err)
}
}
var ensClient *ethclient.Client
if ensapi != "" {
log.Info("connecting to ENS API", "url", ensapi)
client, err := rpc.Dial(ensapi)
if err != nil {
return nil, fmt.Errorf("error connecting to ENS API %s: %s", ensapi, err)
}
ensClient = ethclient.NewClient(client)
if ensAddr != "" {
bzzconfig.EnsRoot = common.HexToAddress(ensAddr)
} else {
ensAddr, err := detectEnsAddr(client)
if err == nil {
bzzconfig.EnsRoot = ensAddr
} else {
log.Warn(fmt.Sprintf("could not determine ENS contract address, using default %s", bzzconfig.EnsRoot), "err", err)
}
}
}
return swarm.NewSwarm(ctx, swapClient, ensClient, bzzconfig, swapEnabled, syncEnabled, cors)
}
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)
}
// Try to load the arg as a hex key file.
if key, err := crypto.LoadECDSA(keyid); err == nil {
log.Info("Swarm account key loaded", "address", crypto.PubkeyToAddress(key.PublicKey))
return key
}
// Otherwise try getting it from the keystore.
am := stack.AccountManager()
ks := am.Backends(keystore.KeyStoreType)[0].(*keystore.KeyStore)
return decryptStoreAccount(ks, keyid, utils.MakePasswordList(ctx))
}
func decryptStoreAccount(ks *keystore.KeyStore, account string, passwords []string) *ecdsa.PrivateKey {
var a accounts.Account
var err error
if common.IsHexAddress(account) {
a, err = ks.Find(accounts.Account{Address: common.HexToAddress(account)})
} else if ix, ixerr := strconv.Atoi(account); ixerr == nil && ix > 0 {
if accounts := ks.Accounts(); len(accounts) > ix {
a = accounts[ix]
} else {
err = fmt.Errorf("index %d higher than number of accounts %d", ix, len(accounts))
}
} else {
utils.Fatalf("Can't find swarm account key %s", account)
}
if err != nil {
utils.Fatalf("Can't find swarm account key: %v", err)
}
keyjson, err := ioutil.ReadFile(a.URL.Path)
if err != nil {
utils.Fatalf("Can't load swarm account key: %v", err)
}
for i := 0; i < 3; i++ {
password := getPassPhrase(fmt.Sprintf("Unlocking swarm account %s [%d/3]", a.Address.Hex(), i+1), i, passwords)
key, err := keystore.DecryptKey(keyjson, password)
if err == nil {
return key.PrivateKey
}
}
utils.Fatalf("Can't decrypt swarm account key")
return nil
}
// getPassPhrase retrieves the password associated with bzz account, either by fetching
// from a list of pre-loaded passwords, or by requesting it interactively from user.
func getPassPhrase(prompt string, i int, passwords []string) string {
// non-interactive
if len(passwords) > 0 {
if i < len(passwords) {
return passwords[i]
}
return passwords[len(passwords)-1]
}
// fallback to interactive mode
if prompt != "" {
fmt.Println(prompt)
}
password, err := console.Stdin.PromptPassword("Passphrase: ")
if err != nil {
utils.Fatalf("Failed to read passphrase: %v", err)
}
return password
}
func injectBootnodes(srv *p2p.Server, nodes []string) {
for _, url := range nodes {
n, err := discover.ParseNode(url)
if err != nil {
log.Error("Invalid swarm bootnode", "err", err)
continue
}
srv.AddPeer(n)
}
}