// 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 . package main import ( "context" "crypto/ecdsa" "fmt" "io/ioutil" "math/big" "os" "os/signal" "runtime" "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: " ", 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: " []", Description: ` Lists files and directories contained in a manifest. `, }, { Action: hash, Name: "hash", Usage: "print the swarm hash of a file or directory", ArgsUsage: " ", 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: " []", 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: " []", Description: ` Update the hash for an already existing path in the manifest `, }, { Action: remove, Name: "remove", Usage: "removes a path from the manifest", ArgsUsage: " ", Description: ` Removes a path from the manifest `, }, }, }, { Action: cleandb, Name: "cleandb", Usage: "Cleans database of corrupted entries", ArgsUsage: " ", Description: ` Cleans database of corrupted entries. `, }, } 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) } }