#define ARRAY_SIZE(arr) (sizeof (arr) / sizeof (arr[0]))
-#if (GMIME_MAJOR_VERSION < 3)
-/* Create or pass on a GPG context (GMime 2.6) */
-static notmuch_status_t
-get_gpg_context (_notmuch_crypto_t *crypto, GMimeCryptoContext **ctx)
+void _notmuch_crypto_cleanup (unused(_notmuch_crypto_t *crypto))
{
- if (ctx == NULL || crypto == NULL)
- return NOTMUCH_STATUS_NULL_POINTER;
-
- if (crypto->gpgctx) {
- *ctx = crypto->gpgctx;
- return NOTMUCH_STATUS_SUCCESS;
- }
-
- /* TODO: GMimePasswordRequestFunc */
- crypto->gpgctx = g_mime_gpg_context_new (NULL, crypto->gpgpath ? crypto->gpgpath : "gpg");
- if (! crypto->gpgctx) {
- return NOTMUCH_STATUS_FAILED_CRYPTO_CONTEXT_CREATION;
- }
-
- g_mime_gpg_context_set_use_agent ((GMimeGpgContext *) crypto->gpgctx, true);
- g_mime_gpg_context_set_always_trust ((GMimeGpgContext *) crypto->gpgctx, false);
-
- *ctx = crypto->gpgctx;
- return NOTMUCH_STATUS_SUCCESS;
}
-/* Create or pass on a PKCS7 context (GMime 2.6) */
-static notmuch_status_t
-get_pkcs7_context (_notmuch_crypto_t *crypto, GMimeCryptoContext **ctx)
+GMimeObject *
+_notmuch_crypto_decrypt (bool *attempted,
+ notmuch_decryption_policy_t decrypt,
+ notmuch_message_t *message,
+ g_mime_3_unused(GMimeCryptoContext* crypto_ctx),
+ GMimeMultipartEncrypted *part,
+ GMimeDecryptResult **decrypt_result,
+ GError **err)
{
- if (ctx == NULL || crypto == NULL)
- return NOTMUCH_STATUS_NULL_POINTER;
-
- if (crypto->pkcs7ctx) {
- *ctx = crypto->pkcs7ctx;
- return NOTMUCH_STATUS_SUCCESS;
- }
-
- /* TODO: GMimePasswordRequestFunc */
- crypto->pkcs7ctx = g_mime_pkcs7_context_new (NULL);
- if (! crypto->pkcs7ctx) {
- return NOTMUCH_STATUS_FAILED_CRYPTO_CONTEXT_CREATION;
+ GMimeObject *ret = NULL;
+ if (decrypt == NOTMUCH_DECRYPT_FALSE)
+ return NULL;
+
+ /* the versions of notmuch that can support session key decryption */
+#if HAVE_GMIME_SESSION_KEYS
+ if (message) {
+ notmuch_message_properties_t *list = NULL;
+
+ for (list = notmuch_message_get_properties (message, "session-key", TRUE);
+ notmuch_message_properties_valid (list); notmuch_message_properties_move_to_next (list)) {
+ if (err && *err) {
+ g_error_free (*err);
+ *err = NULL;
+ }
+ if (attempted)
+ *attempted = true;
+ ret = g_mime_multipart_encrypted_decrypt (part,
+ GMIME_DECRYPT_NONE,
+ notmuch_message_properties_value (list),
+ decrypt_result, err);
+ if (ret)
+ break;
+ }
+ if (list)
+ notmuch_message_properties_destroy (list);
+ if (ret)
+ return ret;
}
+#endif
- g_mime_pkcs7_context_set_always_trust ((GMimePkcs7Context *) crypto->pkcs7ctx,
- false);
-
- *ctx = crypto->pkcs7ctx;
- return NOTMUCH_STATUS_SUCCESS;
-}
-static const struct {
- const char *protocol;
- notmuch_status_t (*get_context) (_notmuch_crypto_t *crypto, GMimeCryptoContext **ctx);
-} protocols[] = {
- {
- .protocol = "application/pgp-signature",
- .get_context = get_gpg_context,
- },
- {
- .protocol = "application/pgp-encrypted",
- .get_context = get_gpg_context,
- },
- {
- .protocol = "application/pkcs7-signature",
- .get_context = get_pkcs7_context,
- },
- {
- .protocol = "application/x-pkcs7-signature",
- .get_context = get_pkcs7_context,
- },
-};
-
-/* for the specified protocol return the context pointer (initializing
- * if needed) */
-notmuch_status_t
-_notmuch_crypto_get_gmime_ctx_for_protocol (_notmuch_crypto_t *crypto,
- const char *protocol,
- GMimeCryptoContext **ctx)
-{
- if (! protocol)
- return NOTMUCH_STATUS_MALFORMED_CRYPTO_PROTOCOL;
-
- /* 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.
- */
- for (size_t i = 0; i < ARRAY_SIZE (protocols); i++) {
- if (strcasecmp (protocol, protocols[i].protocol) == 0)
- return protocols[i].get_context (crypto, ctx);
+ if (err && *err) {
+ g_error_free (*err);
+ *err = NULL;
}
- return NOTMUCH_STATUS_UNKNOWN_CRYPTO_PROTOCOL;
-}
-
-void
-_notmuch_crypto_cleanup (_notmuch_crypto_t *crypto)
-{
- if (crypto->gpgctx) {
- g_object_unref (crypto->gpgctx);
- crypto->gpgctx = NULL;
- }
+ if (decrypt == NOTMUCH_DECRYPT_AUTO)
+ return ret;
- if (crypto->pkcs7ctx) {
- g_object_unref (crypto->pkcs7ctx);
- crypto->pkcs7ctx = NULL;
- }
-}
+ if (attempted)
+ *attempted = true;
+#if (GMIME_MAJOR_VERSION < 3)
+#if HAVE_GMIME_SESSION_KEYS
+ gboolean oldgetsk = g_mime_crypto_context_get_retrieve_session_key (crypto_ctx);
+ gboolean newgetsk = (decrypt == NOTMUCH_DECRYPT_TRUE && decrypt_result);
+ if (newgetsk != oldgetsk)
+ /* This could return an error, but we can't do anything about it, so ignore it */
+ g_mime_crypto_context_set_retrieve_session_key (crypto_ctx, newgetsk, NULL);
+#endif
+ ret = g_mime_multipart_encrypted_decrypt(part, crypto_ctx,
+ decrypt_result, err);
+#if HAVE_GMIME_SESSION_KEYS
+ if (newgetsk != oldgetsk)
+ g_mime_crypto_context_set_retrieve_session_key (crypto_ctx, oldgetsk, NULL);
+#endif
#else
-void _notmuch_crypto_cleanup (unused(_notmuch_crypto_t *crypto))
-{
-}
+ GMimeDecryptFlags flags = GMIME_DECRYPT_NONE;
+ if (decrypt == NOTMUCH_DECRYPT_TRUE && decrypt_result)
+ flags |= GMIME_DECRYPT_EXPORT_SESSION_KEY;
+ ret = g_mime_multipart_encrypted_decrypt(part, flags, NULL,
+ decrypt_result, err);
#endif
+ return ret;
+}
projects / notmuch / blobdiff