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wizard.go
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wizard.go
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// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information
package wizard
import (
"bytes"
"fmt"
"net"
"os"
"github.com/spf13/cobra"
"github.com/zeebo/errs"
"golang.org/x/crypto/ssh/terminal"
"storj.io/common/storj"
)
// PromptForAccessName handles user input for access name to be used with wizards
func PromptForAccessName() (string, error) {
_, err := fmt.Printf("Choose an access name [\"default\"]: ")
if err != nil {
return "", err
}
var accessName string
n, err := fmt.Scanln(&accessName)
if err != nil && n != 0 {
return "", err
}
if accessName == "" {
return "default", nil
}
return accessName, nil
}
// PromptForSatellite handles user input for a satellite address to be used with wizards
func PromptForSatellite(cmd *cobra.Command) (string, error) {
satellites := []string{
"12EayRS2V1kEsWESU9QMRseFhdxYxKicsiFmxrsLZHeLUtdps3S@us-central-1.tardigrade.io:7777",
"12L9ZFwhzVpuEKMUNUqkaTLGzwY9G24tbiigLiXpmZWKwmcNDDs@europe-west-1.tardigrade.io:7777",
"121RTSDpyNZVcEU84Ticf2L1ntiuUimbWgfATz21tuvgk3vzoA6@asia-east-1.tardigrade.io:7777",
}
_, err := fmt.Print("Select your satellite:\n")
if err != nil {
return "", err
}
for iterator, value := range satellites {
nodeURL, err := storj.ParseNodeURL(value)
if err != nil {
return "", err
}
host, _, err := net.SplitHostPort(nodeURL.Address)
if err != nil {
return "", err
}
_, err = fmt.Printf("\t[%d] %s\n", iterator+1, host)
if err != nil {
return "", nil
}
}
_, err = fmt.Print(`Enter number or satellite address as "<nodeid>@<address>:<port>" [1]: `)
if err != nil {
return "", err
}
var satelliteAddress string
n, err := fmt.Scanln(&satelliteAddress)
if err != nil {
if n != 0 {
return "", err
}
// fmt.Scanln cannot handle empty input
satelliteAddress = satellites[0]
}
if len(satelliteAddress) == 0 {
return "", errs.New("satellite address cannot be empty")
}
if len(satelliteAddress) == 1 {
switch satelliteAddress {
case "1":
satelliteAddress = satellites[0]
case "2":
satelliteAddress = satellites[1]
case "3":
satelliteAddress = satellites[2]
default:
return "", errs.New("satellite address cannot be one character")
}
}
nodeURL, err := storj.ParseNodeURL(satelliteAddress)
if err != nil {
return "", err
}
if nodeURL.ID.IsZero() {
return "", errs.New(`missing node id, satellite address must be in the format "<nodeid>@<address>:<port>"`)
}
return satelliteAddress, nil
}
// PromptForAPIKey handles user input for an API key to be used with wizards
func PromptForAPIKey() (string, error) {
_, err := fmt.Print("Enter your API key: ")
if err != nil {
return "", err
}
var apiKey string
n, err := fmt.Scanln(&apiKey)
if err != nil && n != 0 {
return "", err
}
if apiKey == "" {
return "", errs.New("API key cannot be empty")
}
return apiKey, nil
}
// PromptForEncryptionPassphrase handles user input for an encryption passphrase to be used with wizards
func PromptForEncryptionPassphrase() (string, error) {
_, err := fmt.Print("Enter your encryption passphrase: ")
if err != nil {
return "", err
}
encKey, err := terminal.ReadPassword(int(os.Stdin.Fd()))
if err != nil {
return "", err
}
_, err = fmt.Println()
if err != nil {
return "", err
}
if len(encKey) == 0 {
return "", errs.New("Encryption passphrase cannot be empty")
}
_, err = fmt.Print("Enter your encryption passphrase again: ")
if err != nil {
return "", err
}
repeatedEncKey, err := terminal.ReadPassword(int(os.Stdin.Fd()))
if err != nil {
return "", err
}
_, err = fmt.Println()
if err != nil {
return "", err
}
if !bytes.Equal(encKey, repeatedEncKey) {
return "", errs.New("encryption passphrase does not match")
}
return string(encKey), nil
}