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author | Janos Guljas <janos@resenje.org> | 2018-02-09 19:23:30 +0800 |
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committer | Janos Guljas <janos@resenje.org> | 2018-02-22 21:23:17 +0800 |
commit | a3a07350dcef0ba39829a20d8ddba4bd3463d293 (patch) | |
tree | 100f2515cadd92105537a12e6981fab2193435ee /cmd/ethkey/inspect.go | |
parent | 820cf09c98706f71d4b02b6c25e62db15830f3fb (diff) | |
parent | 1a4e68721a901e86322631fed1191025a6d14c52 (diff) | |
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swarm, cmd/swarm: Merge branch 'master' into multiple-ens-endpoints
Diffstat (limited to 'cmd/ethkey/inspect.go')
-rw-r--r-- | cmd/ethkey/inspect.go | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/cmd/ethkey/inspect.go b/cmd/ethkey/inspect.go new file mode 100644 index 000000000..219a5460b --- /dev/null +++ b/cmd/ethkey/inspect.go @@ -0,0 +1,75 @@ +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/crypto" + "gopkg.in/urfave/cli.v1" +) + +type outputInspect struct { + Address string + PublicKey string + PrivateKey string +} + +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 { + keyfilepath := ctx.Args().First() + + // 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 { + 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 + }, +} |