X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=crypto.c;h=6f4a6db9d0f1be2026f73068b6696e5557640d80;hp=cb361e11557a99b33de25564afe53aff96dde463;hb=4e2c351c588ad74f4800ca0344232be90387c54a;hpb=c5c5770b22dfdb930558979668756cf51a7cc482

diff --git a/crypto.c b/crypto.c
index cb361e11..6f4a6db9 100644
--- a/crypto.c
+++ b/crypto.c
@@ -20,6 +20,48 @@
 
 #include "notmuch-client.h"
 
+#ifdef GMIME_ATLEAST_26
+
+/* Create a GPG context (GMime 2.6) */
+static notmuch_crypto_context_t *
+create_gpg_context (void)
+{
+    notmuch_crypto_context_t *gpgctx;
+
+    /* TODO: GMimePasswordRequestFunc */
+    gpgctx = g_mime_gpg_context_new (NULL, "gpg");
+    if (! gpgctx)
+	return NULL;
+
+    g_mime_gpg_context_set_use_agent ((GMimeGpgContext *) gpgctx, TRUE);
+    g_mime_gpg_context_set_always_trust ((GMimeGpgContext *) gpgctx, FALSE);
+
+    return gpgctx;
+}
+
+#else /* GMIME_ATLEAST_26 */
+
+/* Create a GPG context (GMime 2.4) */
+static notmuch_crypto_context_t *
+create_gpg_context (void)
+{
+    GMimeSession *session;
+    notmuch_crypto_context_t *gpgctx;
+
+    session = g_object_new (g_mime_session_get_type (), NULL);
+    gpgctx = g_mime_gpg_context_new (session, "gpg");
+    g_object_unref (session);
+
+    if (! gpgctx)
+	return NULL;
+
+    g_mime_gpg_context_set_always_trust ((GMimeGpgContext *) gpgctx, FALSE);
+
+    return gpgctx;
+}
+
+#endif /* GMIME_ATLEAST_26 */
+
 /* for the specified protocol return the context pointer (initializing
  * if needed) */
 notmuch_crypto_context_t *
@@ -27,34 +69,25 @@ notmuch_crypto_get_context (notmuch_crypto_t *crypto, const char *protocol)
 {
     notmuch_crypto_context_t *cryptoctx = NULL;
 
+    if (! protocol) {
+	fprintf (stderr, "Cryptographic protocol is empty.\n");
+	return cryptoctx;
+    }
+
     /* As per RFC 1847 section 2.1: "the [protocol] value token is
      * comprised of the type and sub-type tokens of the Content-Type".
      * As per RFC 1521 section 2: "Content-Type values, subtypes, and
      * parameter names as defined in this document are
      * case-insensitive."  Thus, we use strcasecmp for the protocol.
      */
-    if ((strcasecmp (protocol, "application/pgp-signature") == 0)
-	|| (strcasecmp (protocol, "application/pgp-encrypted") == 0)) {
-	if (!crypto->gpgctx) {
-#ifdef GMIME_ATLEAST_26
-	    /* TODO: GMimePasswordRequestFunc */
-	    crypto->gpgctx = g_mime_gpg_context_new (NULL, "gpg");
-#else
-	    GMimeSession* session = g_object_new (g_mime_session_get_type(), NULL);
-	    crypto->gpgctx = g_mime_gpg_context_new (session, "gpg");
-	    g_object_unref (session);
-#endif
-	    if (crypto->gpgctx) {
-#ifdef GMIME_ATLEAST_26
-		g_mime_gpg_context_set_use_agent ((GMimeGpgContext*) crypto->gpgctx, TRUE);
-#endif
-		g_mime_gpg_context_set_always_trust ((GMimeGpgContext*) crypto->gpgctx, FALSE);
-	    } else {
+    if (strcasecmp (protocol, "application/pgp-signature") == 0 ||
+	strcasecmp (protocol, "application/pgp-encrypted") == 0) {
+	if (! crypto->gpgctx) {
+	    crypto->gpgctx = create_gpg_context ();
+	    if (! crypto->gpgctx)
 		fprintf (stderr, "Failed to construct gpg context.\n");
-	    }
 	}
 	cryptoctx = crypto->gpgctx;
-
     } else {
 	fprintf (stderr, "Unknown or unsupported cryptographic protocol.\n");
     }