mirror of https://github.com/ethereum/go-ethereum
Felix Lange
8 years ago
parent
5cd4430a8d
commit
e336b0d60e
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// Copyright 2016 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// go-ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package main |
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import ( |
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"crypto/ecdsa" |
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"fmt" |
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"io/ioutil" |
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"os" |
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"runtime" |
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"strconv" |
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"github.com/ethereum/go-ethereum/accounts" |
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"github.com/ethereum/go-ethereum/cmd/utils" |
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"github.com/ethereum/go-ethereum/common" |
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"github.com/ethereum/go-ethereum/console" |
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"github.com/ethereum/go-ethereum/crypto" |
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"github.com/ethereum/go-ethereum/ethclient" |
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"github.com/ethereum/go-ethereum/internal/debug" |
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"github.com/ethereum/go-ethereum/logger" |
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"github.com/ethereum/go-ethereum/logger/glog" |
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"github.com/ethereum/go-ethereum/node" |
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"github.com/ethereum/go-ethereum/p2p" |
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"github.com/ethereum/go-ethereum/p2p/discover" |
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"github.com/ethereum/go-ethereum/swarm" |
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bzzapi "github.com/ethereum/go-ethereum/swarm/api" |
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"gopkg.in/urfave/cli.v1" |
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) |
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const clientIdentifier = "bzzd" |
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var ( |
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gitCommit string // Git SHA1 commit hash of the release (set via linker flags)
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app = utils.NewApp(gitCommit, "Ethereum Swarm server daemon") |
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) |
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var ( |
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ChequebookAddrFlag = cli.StringFlag{ |
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Name: "chequebook", |
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Usage: "chequebook contract address", |
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} |
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SwarmAccountFlag = cli.StringFlag{ |
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Name: "bzzaccount", |
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Usage: "Swarm account key file", |
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} |
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SwarmPortFlag = cli.StringFlag{ |
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Name: "bzzport", |
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Usage: "Swarm local http api port", |
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} |
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SwarmConfigPathFlag = cli.StringFlag{ |
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Name: "bzzconfig", |
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Usage: "Swarm config file path (datadir/bzz)", |
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} |
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SwarmSwapDisabled = cli.BoolFlag{ |
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Name: "bzznoswap", |
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Usage: "Swarm SWAP disabled (default false)", |
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} |
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SwarmSyncDisabled = cli.BoolFlag{ |
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Name: "bzznosync", |
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Usage: "Swarm Syncing disabled (default false)", |
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} |
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EthAPI = cli.StringFlag{ |
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Name: "ethapi", |
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Usage: "URL of the Ethereum API provider", |
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Value: node.DefaultIPCEndpoint("geth"), |
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} |
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) |
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var defaultBootnodes = []string{} |
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func init() { |
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// Override flag defaults so bzzd can run alongside geth.
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utils.ListenPortFlag.Value = 30399 |
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utils.IPCPathFlag.Value = utils.DirectoryString{Value: "bzzd.ipc"} |
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// Set up the cli app.
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app.Commands = nil |
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app.Action = bzzd |
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app.Flags = []cli.Flag{ |
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utils.IdentityFlag, |
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utils.DataDirFlag, |
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utils.BootnodesFlag, |
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utils.KeyStoreDirFlag, |
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utils.ListenPortFlag, |
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utils.MaxPeersFlag, |
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utils.NATFlag, |
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utils.NodeKeyFileFlag, |
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utils.NodeKeyHexFlag, |
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utils.IPCDisabledFlag, |
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utils.IPCApiFlag, |
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utils.IPCPathFlag, |
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// bzzd-specific flags
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EthAPI, |
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SwarmConfigPathFlag, |
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SwarmSwapDisabled, |
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SwarmSyncDisabled, |
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SwarmPortFlag, |
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SwarmAccountFlag, |
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ChequebookAddrFlag, |
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} |
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app.Flags = append(app.Flags, debug.Flags...) |
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app.Before = func(ctx *cli.Context) error { |
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runtime.GOMAXPROCS(runtime.NumCPU()) |
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return debug.Setup(ctx) |
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} |
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app.After = func(ctx *cli.Context) error { |
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debug.Exit() |
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return nil |
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} |
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} |
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func main() { |
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if err := app.Run(os.Args); err != nil { |
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fmt.Fprintln(os.Stderr, err) |
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os.Exit(1) |
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} |
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} |
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func bzzd(ctx *cli.Context) error { |
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stack := utils.MakeNode(ctx, clientIdentifier, gitCommit) |
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registerBzzService(ctx, stack) |
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utils.StartNode(stack) |
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// Add bootnodes as initial peers.
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if ctx.GlobalIsSet(utils.BootnodesFlag.Name) { |
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injectBootnodes(stack.Server(), ctx.GlobalStringSlice(utils.BootnodesFlag.Name)) |
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} else { |
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injectBootnodes(stack.Server(), defaultBootnodes) |
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} |
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stack.Wait() |
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return nil |
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} |
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func registerBzzService(ctx *cli.Context, stack *node.Node) { |
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prvkey := getAccount(ctx, stack) |
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chbookaddr := common.HexToAddress(ctx.GlobalString(ChequebookAddrFlag.Name)) |
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bzzdir := ctx.GlobalString(SwarmConfigPathFlag.Name) |
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if bzzdir == "" { |
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bzzdir = stack.InstanceDir() |
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} |
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bzzconfig, err := bzzapi.NewConfig(bzzdir, chbookaddr, prvkey) |
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if err != nil { |
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utils.Fatalf("unable to configure swarm: %v", err) |
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} |
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bzzport := ctx.GlobalString(SwarmPortFlag.Name) |
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if len(bzzport) > 0 { |
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bzzconfig.Port = bzzport |
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} |
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swapEnabled := !ctx.GlobalBool(SwarmSwapDisabled.Name) |
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syncEnabled := !ctx.GlobalBool(SwarmSyncDisabled.Name) |
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ethapi := ctx.GlobalString(EthAPI.Name) |
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if ethapi == "" { |
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utils.Fatalf("Option %q must not be empty", EthAPI.Name) |
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} |
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boot := func(ctx *node.ServiceContext) (node.Service, error) { |
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client, err := ethclient.Dial(ethapi) |
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if err != nil { |
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utils.Fatalf("Can't connect: %v", err) |
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} |
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return swarm.NewSwarm(ctx, client, bzzconfig, swapEnabled, syncEnabled) |
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} |
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if err := stack.Register(boot); err != nil { |
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utils.Fatalf("Failed to register the Swarm service: %v", err) |
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} |
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} |
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func getAccount(ctx *cli.Context, stack *node.Node) *ecdsa.PrivateKey { |
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keyid := ctx.GlobalString(SwarmAccountFlag.Name) |
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if keyid == "" { |
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utils.Fatalf("Option %q is required", SwarmAccountFlag.Name) |
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} |
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// Try to load the arg as a hex key file.
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if key, err := crypto.LoadECDSA(keyid); err == nil { |
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glog.V(logger.Info).Infof("swarm account key loaded: %#x", crypto.PubkeyToAddress(key.PublicKey)) |
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return key |
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} |
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// Otherwise try getting it from the keystore.
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return decryptStoreAccount(stack.AccountManager(), keyid) |
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} |
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func decryptStoreAccount(accman *accounts.Manager, account string) *ecdsa.PrivateKey { |
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var a accounts.Account |
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var err error |
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if common.IsHexAddress(account) { |
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a, err = accman.Find(accounts.Account{Address: common.HexToAddress(account)}) |
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} else if ix, ixerr := strconv.Atoi(account); ixerr == nil { |
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a, err = accman.AccountByIndex(ix) |
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} else { |
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utils.Fatalf("Can't find swarm account key %s", account) |
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} |
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if err != nil { |
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utils.Fatalf("Can't find swarm account key: %v", err) |
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} |
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keyjson, err := ioutil.ReadFile(a.File) |
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if err != nil { |
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utils.Fatalf("Can't load swarm account key: %v", err) |
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} |
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for i := 1; i <= 3; i++ { |
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passphrase := promptPassphrase(fmt.Sprintf("Unlocking swarm account %s [%d/3]", a.Address.Hex(), i)) |
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key, err := accounts.DecryptKey(keyjson, passphrase) |
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if err == nil { |
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return key.PrivateKey |
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} |
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} |
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utils.Fatalf("Can't decrypt swarm account key") |
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return nil |
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} |
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func promptPassphrase(prompt string) string { |
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if prompt != "" { |
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fmt.Println(prompt) |
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} |
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password, err := console.Stdin.PromptPassword("Passphrase: ") |
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if err != nil { |
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utils.Fatalf("Failed to read passphrase: %v", err) |
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} |
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return password |
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} |
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func injectBootnodes(srv *p2p.Server, nodes []string) { |
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for _, url := range nodes { |
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n, err := discover.ParseNode(url) |
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if err != nil { |
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glog.Errorf("invalid bootnode %q", err) |
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} |
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srv.AddPeer(n) |
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} |
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} |
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