aerc/lib/crypto/gpg/gpgbin/encrypt.go

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package gpgbin
import (
"bytes"
"fmt"
"io"
"git.sr.ht/~rjarry/aerc/models"
)
// Encrypt runs gpg --encrypt [--sign] -r [recipient]. The default is to have
// --trust-model always set
func Encrypt(r io.Reader, to []string, from string) ([]byte, error) {
// TODO probably shouldn't have --trust-model always a default
args := []string{
"--armor",
"--trust-model", "always",
}
if from != "" {
args = append(args, "--sign", "--default-key", from)
}
for _, rcpt := range to {
args = append(args, "--recipient", rcpt)
}
args = append(args, "--encrypt", "-")
g := newGpg(r, args)
_ = g.cmd.Run()
outRdr := bytes.NewReader(g.stdout.Bytes())
var md models.MessageDetails
err := parse(outRdr, &md)
if err != nil {
return nil, fmt.Errorf("gpg: failure to encrypt: %w. check public key(s)", err)
}
var buf bytes.Buffer
_, _ = io.Copy(&buf, md.Body)
return buf.Bytes(), nil
}