aboutsummaryrefslogtreecommitdiffstats
path: root/cmd/swarm/main.go
blob: 1c8da43aefeae301d63620b26f84d1fed90d1044 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
// 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 (
    "crypto/ecdsa"
    "fmt"
    "io/ioutil"
    "os"
    "runtime"
    "strconv"
    "strings"

    "github.com/ethereum/go-ethereum/accounts"
    "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/ethclient"
    "github.com/ethereum/go-ethereum/internal/debug"
    "github.com/ethereum/go-ethereum/logger"
    "github.com/ethereum/go-ethereum/logger/glog"
    "github.com/ethereum/go-ethereum/node"
    "github.com/ethereum/go-ethereum/p2p"
    "github.com/ethereum/go-ethereum/p2p/discover"
    "github.com/ethereum/go-ethereum/swarm"
    bzzapi "github.com/ethereum/go-ethereum/swarm/api"
    "github.com/ethereum/go-ethereum/swarm/network"
    "gopkg.in/urfave/cli.v1"
)

const (
    clientIdentifier = "swarm"
    versionString    = "0.2"
)

var (
    gitCommit        string // Git SHA1 commit hash of the release (set via linker flags)
    app              = utils.NewApp(gitCommit, "Ethereum Swarm")
    testbetBootNodes = []string{
        "enode://330dce4992f5ec50a4a6f9e16bf35b9d8ee739236b6530e7846fcb058ed24b666e6027513a4b921fd2ec40ff22f6ddec0937bcbc697a8937d9cde83d8fde8a06@13.79.165.39:30403",
        "enode://7ea1cc1723b4d51f08f76f6380f5f9faa92232313c6568e79ab1e1a98148f7549a3f8d05b2e6f94c10796e015a224ed2e46df7033077d63a888eeec52fae6fd2@13.79.165.39:30404",
        "enode://4363f21af9e94e32b3ad22d88ed04f6e5bcf9407b7cb38a61216c57bbdcb9d5c5beb4f9aac1b78049e8d3a516097f5b92fc116928e35c92e48fc9b68086b78f5@13.79.165.39:30405",
        "enode://79b616c70d309b27319461219032ff7f5901c3e522bb5d5b084e4372666f7f006803387e81563bd1bb06937a4adb8efa16c0ea86e921edf49a09e58ac3a90845@13.79.165.39:30406",
        "enode://83b4df39d90720193717ccd5476feca81a962a31090fc440a9085941fcbfcd765285edb00c549286be33703d9bfb2723576dc85d705c9bfe1a74ee454d61f2cc@13.79.165.39:30407",
    }
)

var (
    ChequebookAddrFlag = cli.StringFlag{
        Name:  "chequebook",
        Usage: "chequebook contract address",
    }
    SwarmAccountFlag = cli.StringFlag{
        Name:  "bzzaccount",
        Usage: "Swarm account key file",
    }
    SwarmPortFlag = cli.StringFlag{
        Name:  "bzzport",
        Usage: "Swarm local http api port",
    }
    SwarmNetworkIdFlag = cli.IntFlag{
        Name:  "bzznetworkid",
        Usage: "Network identifier (integer, default 3=swarm testnet)",
        Value: network.NetworkId,
    }
    SwarmConfigPathFlag = cli.StringFlag{
        Name:  "bzzconfig",
        Usage: "Swarm config file path (datadir/bzz)",
    }
    SwarmSwapEnabled = cli.BoolFlag{
        Name:  "swap",
        Usage: "Swarm SWAP enabled (default false)",
    }
    SwarmSyncEnabled = cli.BoolTFlag{
        Name:  "sync",
        Usage: "Swarm Syncing enabled (default true)",
    }
    EthAPI = cli.StringFlag{
        Name:  "ethapi",
        Usage: "URL of the Ethereum API provider",
        Value: node.DefaultIPCEndpoint("geth"),
    }
    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)",
    }
)

func init() {
    // Override flag defaults so bzzd can run alongside geth.
    utils.ListenPortFlag.Value = 30399
    utils.IPCPathFlag.Value = utils.DirectoryString{Value: "bzzd.ipc"}
    utils.IPCApiFlag.Value = "admin, bzz, chequebook, debug, rpc, web3"

    // Set up the cli app.
    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{
        cli.Command{
            Action:    version,
            Name:      "version",
            Usage:     "Print version numbers",
            ArgsUsage: " ",
            Description: `
The output of this command is supposed to be machine-readable.
`,
        },
        cli.Command{
            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",
`,
        },
        cli.Command{
            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.
`,
        },
    }

    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.IPCApiFlag,
        utils.IPCPathFlag,
        // bzzd-specific flags
        EthAPI,
        SwarmConfigPathFlag,
        SwarmSwapEnabled,
        SwarmSyncEnabled,
        SwarmPortFlag,
        SwarmAccountFlag,
        SwarmNetworkIdFlag,
        ChequebookAddrFlag,
        // upload flags
        SwarmApiFlag,
        SwarmRecursiveUploadFlag,
        SwarmWantManifestFlag,
        SwarmUploadDefaultPath,
    }
    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:", versionString)
    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 {
    stack := utils.MakeNode(ctx, clientIdentifier, gitCommit)
    registerBzzService(ctx, stack)
    utils.StartNode(stack)
    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
}

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
    }
    swapEnabled := ctx.GlobalBool(SwarmSwapEnabled.Name)
    syncEnabled := ctx.GlobalBoolT(SwarmSyncEnabled.Name)

    ethapi := ctx.GlobalString(EthAPI.Name)

    boot := func(ctx *node.ServiceContext) (node.Service, error) {
        var client *ethclient.Client
        if len(ethapi) > 0 {
            client, err = ethclient.Dial(ethapi)
            if err != nil {
                utils.Fatalf("Can't connect: %v", err)
            }
        }
        return swarm.NewSwarm(ctx, client, bzzconfig, swapEnabled, syncEnabled)
    }
    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 {
        glog.V(logger.Info).Infof("swarm account key loaded: %#x", crypto.PubkeyToAddress(key.PublicKey))
        return key
    }
    // Otherwise try getting it from the keystore.
    return decryptStoreAccount(stack.AccountManager(), keyid)
}

func decryptStoreAccount(accman *accounts.Manager, account string) *ecdsa.PrivateKey {
    var a accounts.Account
    var err error
    if common.IsHexAddress(account) {
        a, err = accman.Find(accounts.Account{Address: common.HexToAddress(account)})
    } else if ix, ixerr := strconv.Atoi(account); ixerr == nil {
        a, err = accman.AccountByIndex(ix)
    } 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.File)
    if err != nil {
        utils.Fatalf("Can't load swarm account key: %v", err)
    }
    for i := 1; i <= 3; i++ {
        passphrase := promptPassphrase(fmt.Sprintf("Unlocking swarm account %s [%d/3]", a.Address.Hex(), i))
        key, err := accounts.DecryptKey(keyjson, passphrase)
        if err == nil {
            return key.PrivateKey
        }
    }
    utils.Fatalf("Can't decrypt swarm account key")
    return nil
}

func promptPassphrase(prompt string) string {
    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 {
            glog.Errorf("invalid bootnode %q", err)
            continue
        }
        srv.AddPeer(n)
    }
}