// 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 ( "crypto/ecdsa" "encoding/hex" "fmt" "io/ioutil" "os" "os/signal" "runtime" "sort" "strconv" "strings" "syscall" "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/crypto" "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/enode" "github.com/ethereum/go-ethereum/swarm" bzzapi "github.com/ethereum/go-ethereum/swarm/api" swarmmetrics "github.com/ethereum/go-ethereum/swarm/metrics" "github.com/ethereum/go-ethereum/swarm/tracing" sv "github.com/ethereum/go-ethereum/swarm/version" "gopkg.in/urfave/cli.v1" ) const clientIdentifier = "swarm" const helpTemplate = `NAME: {{.HelpName}} - {{.Usage}} USAGE: {{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}}{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Category}} CATEGORY: {{.Category}}{{end}}{{if .Description}} DESCRIPTION: {{.Description}}{{end}}{{if .VisibleFlags}} OPTIONS: {{range .VisibleFlags}}{{.}} {{end}}{{end}} ` var ( gitCommit string // Git SHA1 commit hash of the release (set via linker flags) ) var ( ChequebookAddrFlag = cli.StringFlag{ Name: "chequebook", Usage: "chequebook contract address", EnvVar: SWARM_ENV_CHEQUEBOOK_ADDR, } SwarmAccountFlag = cli.StringFlag{ Name: "bzzaccount", Usage: "Swarm account key file", EnvVar: SWARM_ENV_ACCOUNT, } SwarmListenAddrFlag = cli.StringFlag{ Name: "httpaddr", Usage: "Swarm HTTP API listening interface", EnvVar: SWARM_ENV_LISTEN_ADDR, } SwarmPortFlag = cli.StringFlag{ 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)", EnvVar: SWARM_ENV_NETWORK_ID, } SwarmSwapEnabledFlag = cli.BoolFlag{ 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", EnvVar: SWARM_ENV_SWAP_API, } SwarmSyncDisabledFlag = cli.BoolTFlag{ Name: "nosync", Usage: "Disable swarm syncing", EnvVar: SWARM_ENV_SYNC_DISABLE, } SwarmSyncUpdateDelay = cli.DurationFlag{ Name: "sync-update-delay", Usage: "Duration for sync subscriptions update after no new peers are added (default 15s)", EnvVar: SWARM_ENV_SYNC_UPDATE_DELAY, } SwarmMaxStreamPeerServersFlag = cli.IntFlag{ Name: "max-stream-peer-servers", Usage: "Limit of Stream peer servers, 0 denotes unlimited", EnvVar: SWARM_ENV_MAX_STREAM_PEER_SERVERS, Value: 10000, // A very large default value is possible as stream servers have very small memory footprint } SwarmLightNodeEnabled = cli.BoolFlag{ Name: "lightnode", Usage: "Enable Swarm LightNode (default false)", EnvVar: SWARM_ENV_LIGHT_NODE_ENABLE, } SwarmDeliverySkipCheckFlag = cli.BoolFlag{ Name: "delivery-skip-check", Usage: "Skip chunk delivery check (default false)", EnvVar: SWARM_ENV_DELIVERY_SKIP_CHECK, } 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", EnvVar: SWARM_ENV_ENS_API, } SwarmApiFlag = cli.StringFlag{ Name: "bzzapi", Usage: "Swarm HTTP endpoint", Value: "http://127.0.0.1:8500", } SwarmRecursiveFlag = cli.BoolFlag{ Name: "recursive", Usage: "Upload directories recursively", } SwarmWantManifestFlag = cli.BoolTFlag{ Name: "manifest", Usage: "Automatic manifest upload (default true)", } SwarmUploadDefaultPath = cli.StringFlag{ Name: "defaultpath", Usage: "path to file served for empty url path (none)", } SwarmAccessGrantKeyFlag = cli.StringFlag{ Name: "grant-key", Usage: "grants a given public key access to an ACT", } SwarmAccessGrantKeysFlag = cli.StringFlag{ Name: "grant-keys", Usage: "grants a given list of public keys in the following file (separated by line breaks) access to an ACT", } SwarmUpFromStdinFlag = cli.BoolFlag{ Name: "stdin", Usage: "reads data to be uploaded from stdin", } SwarmUploadMimeType = cli.StringFlag{ Name: "mime", Usage: "Manually specify MIME type", } SwarmEncryptedFlag = cli.BoolFlag{ Name: "encrypt", Usage: "use encrypted upload", } SwarmAccessPasswordFlag = cli.StringFlag{ Name: "password", Usage: "Password", EnvVar: SWARM_ACCESS_PASSWORD, } SwarmDryRunFlag = cli.BoolFlag{ Name: "dry-run", Usage: "dry-run", } CorsStringFlag = cli.StringFlag{ 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, } SwarmStorePath = cli.StringFlag{ Name: "store.path", Usage: "Path to leveldb chunk DB (default <$GETH_ENV_DIR>/swarm/bzz-<$BZZ_KEY>/chunks)", EnvVar: SWARM_ENV_STORE_PATH, } SwarmStoreCapacity = cli.Uint64Flag{ Name: "store.size", Usage: "Number of chunks (5M is roughly 20-25GB) (default 5000000)", EnvVar: SWARM_ENV_STORE_CAPACITY, } SwarmStoreCacheCapacity = cli.UintFlag{ Name: "store.cache.size", Usage: "Number of recent chunks cached in memory (default 5000)", EnvVar: SWARM_ENV_STORE_CACHE_CAPACITY, } SwarmCompressedFlag = cli.BoolFlag{ Name: "compressed", Usage: "Prints encryption keys in compressed form", } SwarmFeedNameFlag = cli.StringFlag{ Name: "name", Usage: "User-defined name for the new feed, limited to 32 characters. If combined with topic, it will refer to a subtopic with this name", } SwarmFeedTopicFlag = cli.StringFlag{ Name: "topic", Usage: "User-defined topic this feed is tracking, hex encoded. Limited to 64 hexadecimal characters", } SwarmFeedDataOnCreateFlag = cli.StringFlag{ Name: "data", Usage: "Initializes the feed with the given hex-encoded data. Data must be prefixed by 0x", } SwarmFeedManifestFlag = cli.StringFlag{ Name: "manifest", Usage: "Refers to the feed through a manifest", } SwarmFeedUserFlag = cli.StringFlag{ Name: "user", Usage: "Indicates the user who updates the feed", } ) //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" ) // this help command gets added to any subcommand that does not define it explicitly var defaultSubcommandHelp = cli.Command{ Action: func(ctx *cli.Context) { cli.ShowCommandHelpAndExit(ctx, "", 1) }, CustomHelpTemplate: helpTemplate, Name: "help", Usage: "shows this help", Hidden: true, } var defaultNodeConfig = node.DefaultConfig // This init function sets defaults so cmd/swarm can run alongside geth. func init() { defaultNodeConfig.Name = clientIdentifier defaultNodeConfig.Version = sv.VersionWithCommit(gitCommit) defaultNodeConfig.P2P.ListenAddr = ":30399" defaultNodeConfig.IPCPath = "bzzd.ipc" // Set flag defaults for --help display. utils.ListenPortFlag.Value = 30399 } var app = utils.NewApp("", "Ethereum Swarm") // This init function creates the cli.App. func init() { app.Action = bzzd app.Version = sv.ArchiveVersion(gitCommit) app.Copyright = "Copyright 2013-2016 The go-ethereum Authors" app.Commands = []cli.Command{ { Action: version, CustomHelpTemplate: helpTemplate, Name: "version", Usage: "Print version numbers", Description: "The output of this command is supposed to be machine-readable", }, { Action: keys, CustomHelpTemplate: helpTemplate, Name: "print-keys", Flags: []cli.Flag{SwarmCompressedFlag}, Usage: "Print public key information", Description: "The output of this command is supposed to be machine-readable", }, { Action: upload, CustomHelpTemplate: helpTemplate, Name: "up", Usage: "uploads a file or directory to swarm using the HTTP API", ArgsUsage: "", Flags: []cli.Flag{SwarmEncryptedFlag}, Description: "uploads a file or directory to swarm using the HTTP API and prints the root hash", }, { CustomHelpTemplate: helpTemplate, Name: "access", Usage: "encrypts a reference and embeds it into a root manifest", ArgsUsage: "", Description: "encrypts a reference and embeds it into a root manifest", Subcommands: []cli.Command{ { CustomHelpTemplate: helpTemplate, Name: "new", Usage: "encrypts a reference and embeds it into a root manifest", ArgsUsage: "", Description: "encrypts a reference and embeds it into a root access manifest and prints the resulting manifest", Subcommands: []cli.Command{ { Action: accessNewPass, CustomHelpTemplate: helpTemplate, Flags: []cli.Flag{ utils.PasswordFileFlag, SwarmDryRunFlag, }, Name: "pass", Usage: "encrypts a reference with a password and embeds it into a root manifest", ArgsUsage: "", Description: "encrypts a reference and embeds it into a root access manifest and prints the resulting manifest", }, { Action: accessNewPK, CustomHelpTemplate: helpTemplate, Flags: []cli.Flag{ utils.PasswordFileFlag, SwarmDryRunFlag, SwarmAccessGrantKeyFlag, }, Name: "pk", Usage: "encrypts a reference with the node's private key and a given grantee's public key and embeds it into a root manifest", ArgsUsage: "", Description: "encrypts a reference and embeds it into a root access manifest and prints the resulting manifest", }, { Action: accessNewACT, CustomHelpTemplate: helpTemplate, Flags: []cli.Flag{ SwarmAccessGrantKeysFlag, SwarmDryRunFlag, utils.PasswordFileFlag, }, Name: "act", Usage: "encrypts a reference with the node's private key and a given grantee's public key and embeds it into a root manifest", ArgsUsage: "", Description: "encrypts a reference and embeds it into a root access manifest and prints the resulting manifest", }, }, }, }, }, { CustomHelpTemplate: helpTemplate, Name: "feed", Usage: "(Advanced) Create and update Swarm Feeds", ArgsUsage: "", Description: "Works with Swarm Feeds", Subcommands: []cli.Command{ { Action: feedCreateManifest, CustomHelpTemplate: helpTemplate, Name: "create", Usage: "creates and publishes a new feed manifest", Description: `creates and publishes a new feed manifest pointing to a specified user's updates about a particular topic. The feed topic can be built in the following ways: * use --topic to set the topic to an arbitrary binary hex string. * use --name to set the topic to a human-readable name. For example --name could be set to "profile-picture", meaning this feed allows to get this user's current profile picture. * use both --topic and --name to create named subtopics. For example, --topic could be set to an Ethereum contract address and --name could be set to "comments", meaning this feed tracks a discussion about that contract. The --user flag allows to have this manifest refer to a user other than yourself. If not specified, it will then default to your local account (--bzzaccount)`, Flags: []cli.Flag{SwarmFeedNameFlag, SwarmFeedTopicFlag, SwarmFeedUserFlag}, }, { Action: feedUpdate, CustomHelpTemplate: helpTemplate, Name: "update", Usage: "updates the content of an existing Swarm Feed", ArgsUsage: "<0x Hex data>", Description: `publishes a new update on the specified topic The feed topic can be built in the following ways: * use --topic to set the topic to an arbitrary binary hex string. * use --name to set the topic to a human-readable name. For example --name could be set to "profile-picture", meaning this feed allows to get this user's current profile picture. * use both --topic and --name to create named subtopics. For example, --topic could be set to an Ethereum contract address and --name could be set to "comments", meaning this feed tracks a discussion about that contract. If you have a manifest, you can specify it with --manifest to refer to the feed, instead of using --topic / --name `, Flags: []cli.Flag{SwarmFeedManifestFlag, SwarmFeedNameFlag, SwarmFeedTopicFlag}, }, { Action: feedInfo, CustomHelpTemplate: helpTemplate, Name: "info", Usage: "obtains information about an existing Swarm feed", Description: `obtains information about an existing Swarm feed The topic can be specified directly with the --topic flag as an hex string If no topic is specified, the default topic (zero) will be used The --name flag can be used to specify subtopics with a specific name. The --user flag allows to refer to a user other than yourself. If not specified, it will then default to your local account (--bzzaccount) If you have a manifest, you can specify it with --manifest instead of --topic / --name / ---user to refer to the feed`, Flags: []cli.Flag{SwarmFeedManifestFlag, SwarmFeedNameFlag, SwarmFeedTopicFlag, SwarmFeedUserFlag}, }, }, }, { Action: list, CustomHelpTemplate: helpTemplate, Name: "ls", Usage: "list files and directories contained in a manifest", ArgsUsage: " []", Description: "Lists files and directories contained in a manifest", }, { Action: hash, CustomHelpTemplate: helpTemplate, Name: "hash", Usage: "print the swarm hash of a file or directory", ArgsUsage: "", Description: "Prints the swarm hash of file or directory", }, { Action: download, Name: "down", Flags: []cli.Flag{SwarmRecursiveFlag, SwarmAccessPasswordFlag}, Usage: "downloads a swarm manifest or a file inside a manifest", ArgsUsage: " []", Description: `Downloads a swarm bzz uri to the given dir. When no dir is provided, working directory is assumed. --recursive flag is expected when downloading a manifest with multiple entries.`, }, { Name: "manifest", CustomHelpTemplate: helpTemplate, Usage: "perform operations on swarm manifests", ArgsUsage: "COMMAND", Description: "Updates a MANIFEST by adding/removing/updating the hash of a path.\nCOMMAND could be: add, update, remove", Subcommands: []cli.Command{ { Action: manifestAdd, CustomHelpTemplate: helpTemplate, Name: "add", Usage: "add a new path to the manifest", ArgsUsage: " ", Description: "Adds a new path to the manifest", }, { Action: manifestUpdate, CustomHelpTemplate: helpTemplate, 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: manifestRemove, CustomHelpTemplate: helpTemplate, Name: "remove", Usage: "removes a path from the manifest", ArgsUsage: " ", Description: "Removes a path from the manifest", }, }, }, { Name: "fs", CustomHelpTemplate: helpTemplate, Usage: "perform FUSE operations", ArgsUsage: "fs COMMAND", Description: "Performs FUSE operations by mounting/unmounting/listing mount points. This assumes you already have a Swarm node running locally. For all operation you must reference the correct path to bzzd.ipc in order to communicate with the node", Subcommands: []cli.Command{ { Action: mount, CustomHelpTemplate: helpTemplate, Name: "mount", Flags: []cli.Flag{utils.IPCPathFlag}, Usage: "mount a swarm hash to a mount point", ArgsUsage: "swarm fs mount --ipcpath ", Description: "Mounts a Swarm manifest hash to a given mount point. This assumes you already have a Swarm node running locally. You must reference the correct path to your bzzd.ipc file", }, { Action: unmount, CustomHelpTemplate: helpTemplate, Name: "unmount", Flags: []cli.Flag{utils.IPCPathFlag}, Usage: "unmount a swarmfs mount", ArgsUsage: "swarm fs unmount --ipcpath ", Description: "Unmounts a swarmfs mount residing at . This assumes you already have a Swarm node running locally. You must reference the correct path to your bzzd.ipc file", }, { Action: listMounts, CustomHelpTemplate: helpTemplate, Name: "list", Flags: []cli.Flag{utils.IPCPathFlag}, Usage: "list swarmfs mounts", ArgsUsage: "swarm fs list --ipcpath ", Description: "Lists all mounted swarmfs volumes. This assumes you already have a Swarm node running locally. You must reference the correct path to your bzzd.ipc file", }, }, }, { Name: "db", CustomHelpTemplate: helpTemplate, Usage: "manage the local chunk database", ArgsUsage: "db COMMAND", Description: "Manage the local chunk database", Subcommands: []cli.Command{ { Action: dbExport, CustomHelpTemplate: helpTemplate, Name: "export", Usage: "export a local chunk database as a tar archive (use - to send to stdout)", ArgsUsage: " ", 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, CustomHelpTemplate: helpTemplate, Name: "import", Usage: "import chunks from a tar archive into a local chunk database (use - to read from stdin)", ArgsUsage: " ", 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 -`, }, }, }, // See config.go DumpConfigCommand, } // append a hidden help subcommand to all commands that have subcommands // if a help command was already defined above, that one will take precedence. addDefaultHelpSubcommands(app.Commands) 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, SwarmTomlConfigPathFlag, SwarmSwapEnabledFlag, SwarmSwapAPIFlag, SwarmSyncDisabledFlag, SwarmSyncUpdateDelay, SwarmMaxStreamPeerServersFlag, SwarmLightNodeEnabled, SwarmDeliverySkipCheckFlag, SwarmListenAddrFlag, SwarmPortFlag, SwarmAccountFlag, SwarmNetworkIdFlag, ChequebookAddrFlag, // upload flags SwarmApiFlag, SwarmRecursiveFlag, SwarmWantManifestFlag, SwarmUploadDefaultPath, SwarmUpFromStdinFlag, SwarmUploadMimeType, // storage flags SwarmStorePath, SwarmStoreCapacity, SwarmStoreCacheCapacity, } rpcFlags := []cli.Flag{ utils.WSEnabledFlag, utils.WSListenAddrFlag, utils.WSPortFlag, utils.WSApiFlag, utils.WSAllowedOriginsFlag, } app.Flags = append(app.Flags, rpcFlags...) app.Flags = append(app.Flags, debug.Flags...) app.Flags = append(app.Flags, swarmmetrics.Flags...) app.Flags = append(app.Flags, tracing.Flags...) app.Before = func(ctx *cli.Context) error { runtime.GOMAXPROCS(runtime.NumCPU()) if err := debug.Setup(ctx, ""); err != nil { return err } swarmmetrics.Setup(ctx) tracing.Setup(ctx) return nil } 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 keys(ctx *cli.Context) error { privateKey := getPrivKey(ctx) pub := hex.EncodeToString(crypto.FromECDSAPub(&privateKey.PublicKey)) pubCompressed := hex.EncodeToString(crypto.CompressPubkey(&privateKey.PublicKey)) if !ctx.Bool(SwarmCompressedFlag.Name) { fmt.Println(fmt.Sprintf("publicKey=%s", pub)) } fmt.Println(fmt.Sprintf("publicKeyCompressed=%s", pubCompressed)) return nil } func version(ctx *cli.Context) error { fmt.Println(strings.Title(clientIdentifier)) fmt.Println("Version:", sv.VersionWithMeta) if gitCommit != "" { fmt.Println("Git Commit:", gitCommit) } fmt.Println("Go Version:", runtime.Version()) fmt.Println("OS:", runtime.GOOS) return nil } func bzzd(ctx *cli.Context) error { //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 //pss operates on ws cfg.WSModules = append(cfg.WSModules, "pss") //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 } //optionally set the bootnodes before configuring the node setSwarmBootstrapNodes(ctx, &cfg) //setup the ethereum node utils.SetNodeConfig(ctx, &cfg) stack, err := node.New(&cfg) if err != nil { utils.Fatalf("can't create node: %v", err) } //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, stack) //start the node 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() }() stack.Wait() return nil } func registerBzzService(bzzconfig *bzzapi.Config, stack *node.Node) { //define the swarm service boot function boot := func(_ *node.ServiceContext) (node.Service, error) { // In production, mockStore must be always nil. return swarm.NewSwarm(bzzconfig, nil) } //register within the ethereum node if err := stack.Register(boot); err != nil { utils.Fatalf("Failed to register the Swarm service: %v", err) } } 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(bzzaccount); 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, bzzaccount, utils.MakePasswordList(ctx)) } // getPrivKey returns the private key of the specified bzzaccount // Used only by client commands, such as `feed` func getPrivKey(ctx *cli.Context) *ecdsa.PrivateKey { // booting up the swarm node just as we do in bzzd action bzzconfig, err := buildConfig(ctx) if err != nil { utils.Fatalf("unable to configure swarm: %v", err) } cfg := defaultNodeConfig if _, err := os.Stat(bzzconfig.Path); err == nil { cfg.DataDir = bzzconfig.Path } utils.SetNodeConfig(ctx, &cfg) stack, err := node.New(&cfg) if err != nil { utils.Fatalf("can't create node: %v", err) } return getAccount(bzzconfig.BzzAccount, ctx, stack) } 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 - Is the provided bzzaccount(%s) from the right datadir/Path?", err, account) } 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 } // addDefaultHelpSubcommand scans through defined CLI commands and adds // a basic help subcommand to each // if a help command is already defined, it will take precedence over the default. func addDefaultHelpSubcommands(commands []cli.Command) { for i := range commands { cmd := &commands[i] if cmd.Subcommands != nil { cmd.Subcommands = append(cmd.Subcommands, defaultSubcommandHelp) addDefaultHelpSubcommands(cmd.Subcommands) } } } func setSwarmBootstrapNodes(ctx *cli.Context, cfg *node.Config) { if ctx.GlobalIsSet(utils.BootnodesFlag.Name) || ctx.GlobalIsSet(utils.BootnodesV4Flag.Name) { return } cfg.P2P.BootstrapNodes = []*enode.Node{} for _, url := range SwarmBootnodes { node, err := enode.ParseV4(url) if err != nil { log.Error("Bootstrap URL invalid", "enode", url, "err", err) } cfg.P2P.BootstrapNodes = append(cfg.P2P.BootstrapNodes, node) } log.Debug("added default swarm bootnodes", "length", len(cfg.P2P.BootstrapNodes)) }