+/* Create a GPG context (GMime 2.6) */
+static notmuch_crypto_context_t *
+create_gpg_context (notmuch_crypto_t *crypto)
+{
+ notmuch_crypto_context_t *gpgctx;
+
+ if (crypto->gpgctx)
+ return crypto->gpgctx;
+
+ /* TODO: GMimePasswordRequestFunc */
+ gpgctx = g_mime_gpg_context_new (NULL, crypto->gpgpath ? crypto->gpgpath : "gpg");
+ if (! gpgctx) {
+ fprintf (stderr, "Failed to construct gpg context.\n");
+ return NULL;
+ }
+ crypto->gpgctx = gpgctx;
+
+ g_mime_gpg_context_set_use_agent ((GMimeGpgContext *) gpgctx, TRUE);
+ g_mime_gpg_context_set_always_trust ((GMimeGpgContext *) gpgctx, FALSE);
+
+ return gpgctx;
+}
+
+static const struct {
+ const char *protocol;
+ notmuch_crypto_context_t *(*get_context) (notmuch_crypto_t *crypto);
+} protocols[] = {
+ {
+ .protocol = "application/pgp-signature",
+ .get_context = create_gpg_context,
+ },
+ {
+ .protocol = "application/pgp-encrypted",
+ .get_context = create_gpg_context,
+ },
+};
+