70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
package gpg
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import (
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"bytes"
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"io"
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"os/exec"
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"git.sr.ht/~rjarry/aerc/lib/crypto/gpg/gpgbin"
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"git.sr.ht/~rjarry/aerc/models"
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"github.com/ProtonMail/go-crypto/openpgp"
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"github.com/emersion/go-message/mail"
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)
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// Mail satisfies the PGPProvider interface in aerc
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type Mail struct{}
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func (m *Mail) Init() error {
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_, err := exec.LookPath("gpg")
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return err
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}
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func (m *Mail) Decrypt(r io.Reader, decryptKeys openpgp.PromptFunction) (*models.MessageDetails, error) {
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gpgReader, err := Read(r)
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if err != nil {
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return nil, err
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}
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md := gpgReader.MessageDetails
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md.SignatureValidity = models.Valid
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if md.SignatureError != "" {
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md.SignatureValidity = handleSignatureError(md.SignatureError)
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}
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return md, nil
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}
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func (m *Mail) ImportKeys(r io.Reader) error {
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return gpgbin.Import(r)
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}
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func (m *Mail) Encrypt(buf *bytes.Buffer, rcpts []string, signer string, decryptKeys openpgp.PromptFunction, header *mail.Header) (io.WriteCloser, error) {
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return Encrypt(buf, header.Header.Header, rcpts, signer)
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}
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func (m *Mail) Sign(buf *bytes.Buffer, signer string, decryptKeys openpgp.PromptFunction, header *mail.Header) (io.WriteCloser, error) {
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return Sign(buf, header.Header.Header, signer)
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}
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func (m *Mail) Close() {}
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func (m *Mail) GetSignerKeyId(s string) (string, error) {
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return gpgbin.GetPrivateKeyId(s)
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}
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func (m *Mail) GetKeyId(s string) (string, error) {
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return gpgbin.GetKeyId(s)
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}
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func (m *Mail) ExportKey(k string) (io.Reader, error) {
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return gpgbin.ExportPublicKey(k)
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}
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func handleSignatureError(e string) models.SignatureValidity {
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if e == "gpg: missing public key" {
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return models.UnknownEntity
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}
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if e == "gpg: header hash does not match actual sig hash" {
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return models.MicalgMismatch
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}
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return models.UnknownValidity
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}
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