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Merge pull request #3475 from stefanberger/gpg2-passphrase-via-file

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ECI: gpg: Pass the passphrase to the gpg2 tool using a pipe
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Phil Estes 2019-08-02 13:59:17 -04:00 committed by GitHub
commit f0821348b4
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 16 additions and 1 deletions
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17
pkg/encryption/gpg.go
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@ -131,9 +131,24 @@ func (gc *gpgv2Client) GetGPGPrivateKey(keyid uint64, passphrase string) ([]byte
args = append(args, []string{"--homedir", gc.gpgHomeDir}...)
}
args = append(args, []string{"--pinentry-mode", "loopback", "--batch", "--passphrase", passphrase, "--export-secret-key", fmt.Sprintf("0x%x", keyid)}...)
rfile, wfile, err := os.Pipe()
if err != nil {
return nil, errors.Wrapf(err, "could not create pipe")
}
defer func() {
rfile.Close()
wfile.Close()
}()
// fill pipe in background
go func(passphrase string) {
wfile.Write([]byte(passphrase))
wfile.Close()
}(passphrase)
args = append(args, []string{"--pinentry-mode", "loopback", "--batch", "--passphrase-fd", fmt.Sprintf("%d", 3), "--export-secret-key", fmt.Sprintf("0x%x", keyid)}...)
cmd := exec.Command("gpg2", args...)
cmd.ExtraFiles = []*os.File{rfile}
return runGPGGetOutput(cmd)
}