aboutsummaryrefslogtreecommitdiffstats
path: root/ethereum/ethereum.go
blob: 128e111393a7a1928af4f4bc999a7ad1920edb7a (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
package main

import (
    "fmt"
    "github.com/ethereum/eth-go"
    "github.com/ethereum/eth-go/ethchain"
    "github.com/ethereum/eth-go/ethutil"
    "github.com/ethereum/go-ethereum/utils"
    "log"
    "os"
    "os/signal"
    "runtime"
    "strings"
)

const Debug = true

// Register interrupt handlers so we can stop the ethereum
func RegisterInterrupts(s *eth.Ethereum) {
    // Buffered chan of one is enough
    c := make(chan os.Signal, 1)
    // Notify about interrupts for now
    signal.Notify(c, os.Interrupt)
    go func() {
        for sig := range c {
            fmt.Printf("Shutting down (%v) ... \n", sig)
            s.Stop()
        }
    }()
}

func confirm(message string) bool {
    fmt.Println(message, "Are you sure? (y/n)")
    var r string
    fmt.Scanln(&r)
    for ; ; fmt.Scanln(&r) {
        if r == "n" || r == "y" {
            break
        } else {
            fmt.Printf("Yes or no?", r)
        }
    }
    return r == "y"
}

func main() {
    Init()

    runtime.GOMAXPROCS(runtime.NumCPU())

    // set logger
    var logSys *log.Logger
    flags := log.LstdFlags

    if StartJsConsole {
        ethutil.ReadConfig(DataDir, ethutil.LogFile)
    } else {
        ethutil.ReadConfig(DataDir, ethutil.LogFile|ethutil.LogStd)
    }

    logger := ethutil.Config.Log

    if LogFile != "" {
        logfile, err := os.OpenFile(LogFile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
        if err != nil {
            panic(fmt.Sprintf("error opening log file '%s': %v", LogFile, err))
        }
        defer logfile.Close()
        log.SetOutput(logfile)
        logSys = log.New(logfile, "", flags)
        logger.AddLogSystem(logSys)
    } else {
        logSys = log.New(os.Stdout, "", flags)
    }

    ethchain.InitFees()

    // Instantiated a eth stack
    ethereum, err := eth.New(eth.CapDefault, UseUPnP)
    if err != nil {
        log.Println("eth start err:", err)
        return
    }
    ethereum.Port = OutboundPort

    // bookkeeping tasks
    switch {
    case GenAddr:
        if NonInteractive || confirm("This action overwrites your old private key.") {
            utils.CreateKeyPair(true)
        }
        os.Exit(0)
    case len(ImportKey) > 0:
        if NonInteractive || confirm("This action overwrites your old private key.") {
            mnemonic := strings.Split(ImportKey, " ")
            if len(mnemonic) == 24 {
                logSys.Println("Got mnemonic key, importing.")
                key := ethutil.MnemonicDecode(mnemonic)
                utils.ImportPrivateKey(key)
            } else if len(mnemonic) == 1 {
                logSys.Println("Got hex key, importing.")
                utils.ImportPrivateKey(ImportKey)
            } else {
                logSys.Println("Did not recognise format, exiting.")
            }
        }
        os.Exit(0)
    case ExportKey:
        keyPair := ethutil.GetKeyRing().Get(0)
        fmt.Printf(`
Generating new address and keypair.
Please keep your keys somewhere save.

++++++++++++++++ KeyRing +++++++++++++++++++
addr: %x
prvk: %x
pubk: %x
++++++++++++++++++++++++++++++++++++++++++++
save these words so you can restore your account later: %s
`, keyPair.Address(), keyPair.PrivateKey, keyPair.PublicKey)

        os.Exit(0)
    case ShowGenesis:
        logSys.Println(ethereum.BlockChain().Genesis())
        os.Exit(0)
    default:
        // Creates a keypair if non exists
        utils.CreateKeyPair(false)
    }

    // client
    logger.Infoln(fmt.Sprintf("Starting Ethereum v%s", ethutil.Config.Ver))

    // Set the max peers
    ethereum.MaxPeers = MaxPeer

    // Set Mining status
    ethereum.Mining = StartMining

    if StartMining {
        utils.DoMining(ethereum)
    }

    if StartConsole {
        err := os.Mkdir(ethutil.Config.ExecPath, os.ModePerm)
        // Error is OK if the error is ErrExist
        if err != nil && !os.IsExist(err) {
            log.Panic("Unable to create EXECPATH:", err)
        }

        console := NewConsole(ethereum)
        go console.Start()
    } else if StartJsConsole {
        c := NewJSConsole(ethereum)

        go c.Start()
    }

    if StartRpc {
        utils.DoRpc(ethereum, RpcPort)
    }

    RegisterInterrupts(ethereum)

    ethereum.Start(UseSeed)

    // Wait for shutdown
    ethereum.WaitForShutdown()
}