forked from cerc-io/ipld-eth-server
Allow Parity as ingest node (#36)
* Upgrade go-ethereum to v1.8 * Add Node Info for parity nodes * Upgrade start_private_blockchain to use v1.8
This commit is contained in:
Matt K
GitHub
+41
@@ -0,0 +1,41 @@
|
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ethkey
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======
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ethkey is a simple command-line tool for working with Ethereum keyfiles.
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# Usage
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||||
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### `ethkey generate`
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|
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Generate a new keyfile.
|
||||
If you want to use an existing private key to use in the keyfile, it can be
|
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specified by setting `--privatekey` with the location of the file containing the
|
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private key.
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||||
|
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|
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### `ethkey inspect <keyfile>`
|
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|
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Print various information about the keyfile.
|
||||
Private key information can be printed by using the `--private` flag;
|
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make sure to use this feature with great caution!
|
||||
|
||||
|
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### `ethkey sign <keyfile> <message/file>`
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|
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Sign the message with a keyfile.
|
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It is possible to refer to a file containing the message.
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|
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|
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### `ethkey verify <address> <signature> <message/file>`
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|
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Verify the signature of the message.
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It is possible to refer to a file containing the message.
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|
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|
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## Passphrases
|
||||
|
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For every command that uses a keyfile, you will be prompted to provide the
|
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passphrase for decrypting the keyfile. To avoid this message, it is possible
|
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to pass the passphrase by using the `--passphrase` flag pointing to a file that
|
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contains the passphrase.
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+118
@@ -0,0 +1,118 @@
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// Copyright 2017 The go-ethereum Authors
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||||
// 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/>.
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|
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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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"path/filepath"
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"github.com/ethereum/go-ethereum/accounts/keystore"
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"github.com/ethereum/go-ethereum/cmd/utils"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/pborman/uuid"
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"gopkg.in/urfave/cli.v1"
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)
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type outputGenerate struct {
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Address string
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AddressEIP55 string
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}
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var commandGenerate = cli.Command{
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Name: "generate",
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Usage: "generate new keyfile",
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ArgsUsage: "[ <keyfile> ]",
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Description: `
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Generate a new keyfile.
|
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|
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If you want to encrypt an existing private key, it can be specified by setting
|
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--privatekey with the location of the file containing the private key.
|
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`,
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Flags: []cli.Flag{
|
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passphraseFlag,
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jsonFlag,
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cli.StringFlag{
|
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Name: "privatekey",
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Usage: "file containing a raw private key to encrypt",
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},
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},
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Action: func(ctx *cli.Context) error {
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// Check if keyfile path given and make sure it doesn't already exist.
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keyfilepath := ctx.Args().First()
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if keyfilepath == "" {
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keyfilepath = defaultKeyfileName
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}
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if _, err := os.Stat(keyfilepath); err == nil {
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utils.Fatalf("Keyfile already exists at %s.", keyfilepath)
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} else if !os.IsNotExist(err) {
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utils.Fatalf("Error checking if keyfile exists: %v", err)
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}
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var privateKey *ecdsa.PrivateKey
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var err error
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if file := ctx.String("privatekey"); file != "" {
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// Load private key from file.
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privateKey, err = crypto.LoadECDSA(file)
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if err != nil {
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utils.Fatalf("Can't load private key: %v", err)
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}
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} else {
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// If not loaded, generate random.
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privateKey, err = crypto.GenerateKey()
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if err != nil {
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utils.Fatalf("Failed to generate random private key: %v", err)
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}
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}
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// Create the keyfile object with a random UUID.
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id := uuid.NewRandom()
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key := &keystore.Key{
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Id: id,
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Address: crypto.PubkeyToAddress(privateKey.PublicKey),
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PrivateKey: privateKey,
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}
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|
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// Encrypt key with passphrase.
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passphrase := getPassPhrase(ctx, true)
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keyjson, err := keystore.EncryptKey(key, passphrase, keystore.StandardScryptN, keystore.StandardScryptP)
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if err != nil {
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utils.Fatalf("Error encrypting key: %v", err)
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}
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// Store the file to disk.
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if err := os.MkdirAll(filepath.Dir(keyfilepath), 0700); err != nil {
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utils.Fatalf("Could not create directory %s", filepath.Dir(keyfilepath))
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}
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if err := ioutil.WriteFile(keyfilepath, keyjson, 0600); err != nil {
|
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utils.Fatalf("Failed to write keyfile to %s: %v", keyfilepath, err)
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}
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// Output some information.
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out := outputGenerate{
|
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Address: key.Address.Hex(),
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}
|
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if ctx.Bool(jsonFlag.Name) {
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mustPrintJSON(out)
|
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} else {
|
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fmt.Println("Address:", out.Address)
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}
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return nil
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},
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}
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+91
@@ -0,0 +1,91 @@
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// Copyright 2017 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 (
|
||||
"encoding/hex"
|
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"fmt"
|
||||
"io/ioutil"
|
||||
|
||||
"github.com/ethereum/go-ethereum/accounts/keystore"
|
||||
"github.com/ethereum/go-ethereum/cmd/utils"
|
||||
"github.com/ethereum/go-ethereum/crypto"
|
||||
"gopkg.in/urfave/cli.v1"
|
||||
)
|
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|
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type outputInspect struct {
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Address string
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PublicKey string
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PrivateKey string
|
||||
}
|
||||
|
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var commandInspect = cli.Command{
|
||||
Name: "inspect",
|
||||
Usage: "inspect a keyfile",
|
||||
ArgsUsage: "<keyfile>",
|
||||
Description: `
|
||||
Print various information about the keyfile.
|
||||
|
||||
Private key information can be printed by using the --private flag;
|
||||
make sure to use this feature with great caution!`,
|
||||
Flags: []cli.Flag{
|
||||
passphraseFlag,
|
||||
jsonFlag,
|
||||
cli.BoolFlag{
|
||||
Name: "private",
|
||||
Usage: "include the private key in the output",
|
||||
},
|
||||
},
|
||||
Action: func(ctx *cli.Context) error {
|
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keyfilepath := ctx.Args().First()
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||||
|
||||
// Read key from file.
|
||||
keyjson, err := ioutil.ReadFile(keyfilepath)
|
||||
if err != nil {
|
||||
utils.Fatalf("Failed to read the keyfile at '%s': %v", keyfilepath, err)
|
||||
}
|
||||
|
||||
// Decrypt key with passphrase.
|
||||
passphrase := getPassPhrase(ctx, false)
|
||||
key, err := keystore.DecryptKey(keyjson, passphrase)
|
||||
if err != nil {
|
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utils.Fatalf("Error decrypting key: %v", err)
|
||||
}
|
||||
|
||||
// Output all relevant information we can retrieve.
|
||||
showPrivate := ctx.Bool("private")
|
||||
out := outputInspect{
|
||||
Address: key.Address.Hex(),
|
||||
PublicKey: hex.EncodeToString(
|
||||
crypto.FromECDSAPub(&key.PrivateKey.PublicKey)),
|
||||
}
|
||||
if showPrivate {
|
||||
out.PrivateKey = hex.EncodeToString(crypto.FromECDSA(key.PrivateKey))
|
||||
}
|
||||
|
||||
if ctx.Bool(jsonFlag.Name) {
|
||||
mustPrintJSON(out)
|
||||
} else {
|
||||
fmt.Println("Address: ", out.Address)
|
||||
fmt.Println("Public key: ", out.PublicKey)
|
||||
if showPrivate {
|
||||
fmt.Println("Private key: ", out.PrivateKey)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
},
|
||||
}
|
||||
+67
@@ -0,0 +1,67 @@
|
||||
// Copyright 2017 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 (
|
||||
"fmt"
|
||||
"os"
|
||||
|
||||
"github.com/ethereum/go-ethereum/cmd/utils"
|
||||
"gopkg.in/urfave/cli.v1"
|
||||
)
|
||||
|
||||
const (
|
||||
defaultKeyfileName = "keyfile.json"
|
||||
)
|
||||
|
||||
// Git SHA1 commit hash of the release (set via linker flags)
|
||||
var gitCommit = ""
|
||||
|
||||
var app *cli.App
|
||||
|
||||
func init() {
|
||||
app = utils.NewApp(gitCommit, "an Ethereum key manager")
|
||||
app.Commands = []cli.Command{
|
||||
commandGenerate,
|
||||
commandInspect,
|
||||
commandSignMessage,
|
||||
commandVerifyMessage,
|
||||
}
|
||||
}
|
||||
|
||||
// Commonly used command line flags.
|
||||
var (
|
||||
passphraseFlag = cli.StringFlag{
|
||||
Name: "passwordfile",
|
||||
Usage: "the file that contains the passphrase for the keyfile",
|
||||
}
|
||||
jsonFlag = cli.BoolFlag{
|
||||
Name: "json",
|
||||
Usage: "output JSON instead of human-readable format",
|
||||
}
|
||||
messageFlag = cli.StringFlag{
|
||||
Name: "message",
|
||||
Usage: "the file that contains the message to sign/verify",
|
||||
}
|
||||
)
|
||||
|
||||
func main() {
|
||||
if err := app.Run(os.Args); err != nil {
|
||||
fmt.Fprintln(os.Stderr, err)
|
||||
os.Exit(1)
|
||||
}
|
||||
}
|
||||
+159
@@ -0,0 +1,159 @@
|
||||
// Copyright 2017 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 (
|
||||
"encoding/hex"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
|
||||
"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/crypto"
|
||||
"gopkg.in/urfave/cli.v1"
|
||||
)
|
||||
|
||||
type outputSign struct {
|
||||
Signature string
|
||||
}
|
||||
|
||||
var msgfileFlag = cli.StringFlag{
|
||||
Name: "msgfile",
|
||||
Usage: "file containing the message to sign/verify",
|
||||
}
|
||||
|
||||
var commandSignMessage = cli.Command{
|
||||
Name: "signmessage",
|
||||
Usage: "sign a message",
|
||||
ArgsUsage: "<keyfile> <message>",
|
||||
Description: `
|
||||
Sign the message with a keyfile.
|
||||
|
||||
To sign a message contained in a file, use the --msgfile flag.
|
||||
`,
|
||||
Flags: []cli.Flag{
|
||||
passphraseFlag,
|
||||
jsonFlag,
|
||||
msgfileFlag,
|
||||
},
|
||||
Action: func(ctx *cli.Context) error {
|
||||
message := getMessage(ctx, 1)
|
||||
|
||||
// Load the keyfile.
|
||||
keyfilepath := ctx.Args().First()
|
||||
keyjson, err := ioutil.ReadFile(keyfilepath)
|
||||
if err != nil {
|
||||
utils.Fatalf("Failed to read the keyfile at '%s': %v", keyfilepath, err)
|
||||
}
|
||||
|
||||
// Decrypt key with passphrase.
|
||||
passphrase := getPassPhrase(ctx, false)
|
||||
key, err := keystore.DecryptKey(keyjson, passphrase)
|
||||
if err != nil {
|
||||
utils.Fatalf("Error decrypting key: %v", err)
|
||||
}
|
||||
|
||||
signature, err := crypto.Sign(signHash(message), key.PrivateKey)
|
||||
if err != nil {
|
||||
utils.Fatalf("Failed to sign message: %v", err)
|
||||
}
|
||||
out := outputSign{Signature: hex.EncodeToString(signature)}
|
||||
if ctx.Bool(jsonFlag.Name) {
|
||||
mustPrintJSON(out)
|
||||
} else {
|
||||
fmt.Println("Signature:", out.Signature)
|
||||
}
|
||||
return nil
|
||||
},
|
||||
}
|
||||
|
||||
type outputVerify struct {
|
||||
Success bool
|
||||
RecoveredAddress string
|
||||
RecoveredPublicKey string
|
||||
}
|
||||
|
||||
var commandVerifyMessage = cli.Command{
|
||||
Name: "verifymessage",
|
||||
Usage: "verify the signature of a signed message",
|
||||
ArgsUsage: "<address> <signature> <message>",
|
||||
Description: `
|
||||
Verify the signature of the message.
|
||||
It is possible to refer to a file containing the message.`,
|
||||
Flags: []cli.Flag{
|
||||
jsonFlag,
|
||||
msgfileFlag,
|
||||
},
|
||||
Action: func(ctx *cli.Context) error {
|
||||
addressStr := ctx.Args().First()
|
||||
signatureHex := ctx.Args().Get(1)
|
||||
message := getMessage(ctx, 2)
|
||||
|
||||
if !common.IsHexAddress(addressStr) {
|
||||
utils.Fatalf("Invalid address: %s", addressStr)
|
||||
}
|
||||
address := common.HexToAddress(addressStr)
|
||||
signature, err := hex.DecodeString(signatureHex)
|
||||
if err != nil {
|
||||
utils.Fatalf("Signature encoding is not hexadecimal: %v", err)
|
||||
}
|
||||
|
||||
recoveredPubkey, err := crypto.SigToPub(signHash(message), signature)
|
||||
if err != nil || recoveredPubkey == nil {
|
||||
utils.Fatalf("Signature verification failed: %v", err)
|
||||
}
|
||||
recoveredPubkeyBytes := crypto.FromECDSAPub(recoveredPubkey)
|
||||
recoveredAddress := crypto.PubkeyToAddress(*recoveredPubkey)
|
||||
success := address == recoveredAddress
|
||||
|
||||
out := outputVerify{
|
||||
Success: success,
|
||||
RecoveredPublicKey: hex.EncodeToString(recoveredPubkeyBytes),
|
||||
RecoveredAddress: recoveredAddress.Hex(),
|
||||
}
|
||||
if ctx.Bool(jsonFlag.Name) {
|
||||
mustPrintJSON(out)
|
||||
} else {
|
||||
if out.Success {
|
||||
fmt.Println("Signature verification successful!")
|
||||
} else {
|
||||
fmt.Println("Signature verification failed!")
|
||||
}
|
||||
fmt.Println("Recovered public key:", out.RecoveredPublicKey)
|
||||
fmt.Println("Recovered address:", out.RecoveredAddress)
|
||||
}
|
||||
return nil
|
||||
},
|
||||
}
|
||||
|
||||
func getMessage(ctx *cli.Context, msgarg int) []byte {
|
||||
if file := ctx.String("msgfile"); file != "" {
|
||||
if len(ctx.Args()) > msgarg {
|
||||
utils.Fatalf("Can't use --msgfile and message argument at the same time.")
|
||||
}
|
||||
msg, err := ioutil.ReadFile(file)
|
||||
if err != nil {
|
||||
utils.Fatalf("Can't read message file: %v", err)
|
||||
}
|
||||
return msg
|
||||
} else if len(ctx.Args()) == msgarg+1 {
|
||||
return []byte(ctx.Args().Get(msgarg))
|
||||
}
|
||||
utils.Fatalf("Invalid number of arguments: want %d, got %d", msgarg+1, len(ctx.Args()))
|
||||
return nil
|
||||
}
|
||||
+70
@@ -0,0 +1,70 @@
|
||||
// Copyright 2018 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 (
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestMessageSignVerify(t *testing.T) {
|
||||
tmpdir, err := ioutil.TempDir("", "ethkey-test")
|
||||
if err != nil {
|
||||
t.Fatal("Can't create temporary directory:", err)
|
||||
}
|
||||
defer os.RemoveAll(tmpdir)
|
||||
|
||||
keyfile := filepath.Join(tmpdir, "the-keyfile")
|
||||
message := "test message"
|
||||
|
||||
// Create the key.
|
||||
generate := runEthkey(t, "generate", keyfile)
|
||||
generate.Expect(`
|
||||
!! Unsupported terminal, password will be echoed.
|
||||
Passphrase: {{.InputLine "foobar"}}
|
||||
Repeat passphrase: {{.InputLine "foobar"}}
|
||||
`)
|
||||
_, matches := generate.ExpectRegexp(`Address: (0x[0-9a-fA-F]{40})\n`)
|
||||
address := matches[1]
|
||||
generate.ExpectExit()
|
||||
|
||||
// Sign a message.
|
||||
sign := runEthkey(t, "signmessage", keyfile, message)
|
||||
sign.Expect(`
|
||||
!! Unsupported terminal, password will be echoed.
|
||||
Passphrase: {{.InputLine "foobar"}}
|
||||
`)
|
||||
_, matches = sign.ExpectRegexp(`Signature: ([0-9a-f]+)\n`)
|
||||
signature := matches[1]
|
||||
sign.ExpectExit()
|
||||
|
||||
// Verify the message.
|
||||
verify := runEthkey(t, "verifymessage", address, signature, message)
|
||||
_, matches = verify.ExpectRegexp(`
|
||||
Signature verification successful!
|
||||
Recovered public key: [0-9a-f]+
|
||||
Recovered address: (0x[0-9a-fA-F]{40})
|
||||
`)
|
||||
recovered := matches[1]
|
||||
verify.ExpectExit()
|
||||
|
||||
if recovered != address {
|
||||
t.Error("recovered address doesn't match generated key")
|
||||
}
|
||||
}
|
||||
+54
@@ -0,0 +1,54 @@
|
||||
// Copyright 2018 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 (
|
||||
"fmt"
|
||||
"os"
|
||||
"testing"
|
||||
|
||||
"github.com/docker/docker/pkg/reexec"
|
||||
"github.com/ethereum/go-ethereum/internal/cmdtest"
|
||||
)
|
||||
|
||||
type testEthkey struct {
|
||||
*cmdtest.TestCmd
|
||||
}
|
||||
|
||||
// spawns ethkey with the given command line args.
|
||||
func runEthkey(t *testing.T, args ...string) *testEthkey {
|
||||
tt := new(testEthkey)
|
||||
tt.TestCmd = cmdtest.NewTestCmd(t, tt)
|
||||
tt.Run("ethkey-test", args...)
|
||||
return tt
|
||||
}
|
||||
|
||||
func TestMain(m *testing.M) {
|
||||
// Run the app if we've been exec'd as "ethkey-test" in runEthkey.
|
||||
reexec.Register("ethkey-test", func() {
|
||||
if err := app.Run(os.Args); err != nil {
|
||||
fmt.Fprintln(os.Stderr, err)
|
||||
os.Exit(1)
|
||||
}
|
||||
os.Exit(0)
|
||||
})
|
||||
// check if we have been reexec'd
|
||||
if reexec.Init() {
|
||||
return
|
||||
}
|
||||
os.Exit(m.Run())
|
||||
}
|
||||
+83
@@ -0,0 +1,83 @@
|
||||
// Copyright 2017 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 (
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"strings"
|
||||
|
||||
"github.com/ethereum/go-ethereum/cmd/utils"
|
||||
"github.com/ethereum/go-ethereum/console"
|
||||
"github.com/ethereum/go-ethereum/crypto"
|
||||
"gopkg.in/urfave/cli.v1"
|
||||
)
|
||||
|
||||
// getPassPhrase obtains a passphrase given by the user. It first checks the
|
||||
// --passphrase command line flag and ultimately prompts the user for a
|
||||
// passphrase.
|
||||
func getPassPhrase(ctx *cli.Context, confirmation bool) string {
|
||||
// Look for the --passphrase flag.
|
||||
passphraseFile := ctx.String(passphraseFlag.Name)
|
||||
if passphraseFile != "" {
|
||||
content, err := ioutil.ReadFile(passphraseFile)
|
||||
if err != nil {
|
||||
utils.Fatalf("Failed to read passphrase file '%s': %v",
|
||||
passphraseFile, err)
|
||||
}
|
||||
return strings.TrimRight(string(content), "\r\n")
|
||||
}
|
||||
|
||||
// Otherwise prompt the user for the passphrase.
|
||||
passphrase, err := console.Stdin.PromptPassword("Passphrase: ")
|
||||
if err != nil {
|
||||
utils.Fatalf("Failed to read passphrase: %v", err)
|
||||
}
|
||||
if confirmation {
|
||||
confirm, err := console.Stdin.PromptPassword("Repeat passphrase: ")
|
||||
if err != nil {
|
||||
utils.Fatalf("Failed to read passphrase confirmation: %v", err)
|
||||
}
|
||||
if passphrase != confirm {
|
||||
utils.Fatalf("Passphrases do not match")
|
||||
}
|
||||
}
|
||||
return passphrase
|
||||
}
|
||||
|
||||
// signHash is a helper function that calculates a hash for the given message
|
||||
// that can be safely used to calculate a signature from.
|
||||
//
|
||||
// The hash is calulcated as
|
||||
// keccak256("\x19Ethereum Signed Message:\n"${message length}${message}).
|
||||
//
|
||||
// This gives context to the signed message and prevents signing of transactions.
|
||||
func signHash(data []byte) []byte {
|
||||
msg := fmt.Sprintf("\x19Ethereum Signed Message:\n%d%s", len(data), data)
|
||||
return crypto.Keccak256([]byte(msg))
|
||||
}
|
||||
|
||||
// mustPrintJSON prints the JSON encoding of the given object and
|
||||
// exits the program with an error message when the marshaling fails.
|
||||
func mustPrintJSON(jsonObject interface{}) {
|
||||
str, err := json.MarshalIndent(jsonObject, "", " ")
|
||||
if err != nil {
|
||||
utils.Fatalf("Failed to marshal JSON object: %v", err)
|
||||
}
|
||||
fmt.Println(string(str))
|
||||
}
|
||||
Reference in New Issue
Block a user