68 lines
1.3 KiB
Go
68 lines
1.3 KiB
Go
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package decrypt
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import (
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"fmt"
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"os"
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"syscall"
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"github.com/Kichiyaki/gootp/internal/andotp"
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"golang.org/x/term"
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"github.com/urfave/cli/v2"
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)
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func NewCommand() *cli.Command {
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return &cli.Command{
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Name: "decrypt",
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Usage: "decrypt backup file generated by andotp",
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Action: func(c *cli.Context) error {
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var err error
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password := []byte(c.String("password"))
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if len(password) == 0 {
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password, err = getPassword()
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}
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if err != nil {
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return err
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}
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b, err := os.ReadFile(c.String("path"))
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if err != nil {
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return fmt.Errorf("something went wrong while reading file: %w", err)
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}
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result, err := andotp.Decrypt(password, b)
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if err != nil {
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return fmt.Errorf("something went wrong while decrypting file: %w", err)
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}
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fmt.Print("\n")
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fmt.Print(string(result))
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return nil
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},
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Flags: []cli.Flag{
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&cli.StringFlag{
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Name: "path",
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Usage: "path to backup file",
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Required: true,
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},
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&cli.StringFlag{
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Name: "password",
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Usage: "encryption password",
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Required: false,
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},
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},
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}
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}
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func getPassword() ([]byte, error) {
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fmt.Print("Password: ")
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pass, err := term.ReadPassword(syscall.Stdin)
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if err != nil {
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return nil, fmt.Errorf("term.ReadPassword: %w", err)
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}
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return pass, nil
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}
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