emacs: Add support for PGP/MIME verification/decryption

[notmuch] / show-message.c

diff --git a/show-message.c b/show-message.c
index c90f310ca3c45b77b412b2ded67239e9e566b4c8..37252b22b2d05f8d4f01dc47fb9b9f2dabd8cf8d 100644 (file)
--- a/show-message.c
+++ b/show-message.c
@@ -58,7 +58,34 @@ show_message_part (GMimeObject *part,
        GMimeMultipart *multipart = GMIME_MULTIPART (part);
        GError* err = NULL;
 
-       if (GMIME_IS_MULTIPART_SIGNED (part))
+       if (GMIME_IS_MULTIPART_ENCRYPTED (part) && params->decrypt)
+       {
+           if ( g_mime_multipart_get_count (multipart) != 2 ) {
+               /* this violates RFC 3156 section 4, so we won't bother with it. */
+               fprintf (stderr,
+                        "Error: %d part(s) for a multipart/encrypted message (should be exactly 2)\n",
+                        g_mime_multipart_get_count (multipart));
+           } else {
+               GMimeMultipartEncrypted *encrypteddata = GMIME_MULTIPART_ENCRYPTED (part);
+               GMimeObject *decryptedpart = g_mime_multipart_encrypted_decrypt (encrypteddata, params->cryptoctx, &err);
+               if (decryptedpart) {
+                   if ((selected || state->in_zone) && format->part_encstatus)
+                       format->part_encstatus (1);
+                   const GMimeSignatureValidity *sigvalidity = g_mime_multipart_encrypted_get_signature_validity (encrypteddata);
+                   if (!sigvalidity)
+                       fprintf (stderr, "Failed to verify signed part: %s\n", (err ? err->message : "no error explanation given"));
+                   if ((selected || state->in_zone) && format->part_sigstatus)
+                       format->part_sigstatus (sigvalidity);
+                   /* swap the part with the decrypted part */
+                   part = decryptedpart;
+               } else {
+                   fprintf (stderr, "Failed to decrypt part: %s\n", (err ? err->message : "no error explanation given"));
+                   if ((selected || state->in_zone) && format->part_encstatus)
+                       format->part_encstatus (0);
+               }
+           }
+       }
+       else if (GMIME_IS_MULTIPART_SIGNED (part))
        {
            if ( g_mime_multipart_get_count (multipart) != 2 ) {
                /* this violates RFC 3156 section 5, so we won't bother with it. */