aerc/lib/crypto/gpg/gpgbin/decrypt.go
Tim Culverhouse 57699b1fa6 feat: add gpg integration
This commit adds gpg system integration. This is done through two new
packages: gpgbin, which handles the system calls and parsing; and gpg
which is mostly a copy of emersion/go-pgpmail with modifications to
interface with package gpgbin. gpg includes tests for many cases, and
by it's nature also tests package gpgbin. I separated these in case an
external dependency is ever used for the gpg sys-calls/parsing (IE we
mirror how go-pgpmail+openpgp currently are dependencies)

Two new config options are introduced:
* pgp-provider. If it is not explicitly set to "gpg", aerc will default to
it's internal pgp provider
* pgp-key-id: (Optionally) specify a key by short or long keyId

Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>
Acked-by: Koni Marti <koni.marti@gmail.com>
Acked-by: Robin Jarry <robin@jarry.cc>
2022-04-27 09:46:25 +02:00

34 lines
730 B
Go

package gpgbin
import (
"bytes"
"io"
"io/ioutil"
"git.sr.ht/~rjarry/aerc/models"
)
// Decrypt runs gpg --decrypt on the contents of r. If the packet is signed,
// the signature is also verified
func Decrypt(r io.Reader) (*models.MessageDetails, error) {
md := new(models.MessageDetails)
orig, err := ioutil.ReadAll(r)
if err != nil {
return md, err
}
args := []string{"--decrypt"}
g := newGpg(bytes.NewReader(orig), args)
err = g.cmd.Run()
if err != nil {
err = parseError(g.stderr.String())
switch GPGErrors[err.Error()] {
case ERROR_NO_PGP_DATA_FOUND:
md.Body = bytes.NewReader(orig)
return md, nil
default:
}
}
outRdr := bytes.NewReader(g.stdout.Bytes())
parse(outRdr, md)
return md, nil
}