1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
package crypto
import (
"bytes"
"io"
"git.sr.ht/~rjarry/aerc/lib/crypto/gpg"
"git.sr.ht/~rjarry/aerc/lib/crypto/pgp"
"git.sr.ht/~rjarry/aerc/log"
"git.sr.ht/~rjarry/aerc/models"
"github.com/ProtonMail/go-crypto/openpgp"
"github.com/emersion/go-message/mail"
)
type Provider interface {
Decrypt(io.Reader, openpgp.PromptFunction) (*models.MessageDetails, error)
Encrypt(*bytes.Buffer, []string, string, openpgp.PromptFunction, *mail.Header) (io.WriteCloser, error)
Sign(*bytes.Buffer, string, openpgp.PromptFunction, *mail.Header) (io.WriteCloser, error)
ImportKeys(io.Reader) error
Init() error
Close()
GetSignerKeyId(string) (string, error)
GetKeyId(string) (string, error)
ExportKey(string) (io.Reader, error)
}
func New(s string) Provider {
switch s {
case "auto":
internal := &pgp.Mail{}
if internal.KeyringExists() {
log.Debugf("internal pgp keyring exists")
return internal
}
log.Debugf("no internal pgp keyring, using system gpg")
fallthrough
case "gpg":
return &gpg.Mail{}
case "internal":
return &pgp.Mail{}
default:
return nil
}
}
func IsEncrypted(bs *models.BodyStructure) bool {
if bs == nil {
return false
}
if bs.MIMEType == "application" && bs.MIMESubType == "pgp-encrypted" {
return true
}
for _, part := range bs.Parts {
if IsEncrypted(part) {
return true
}
}
return false
}
|
