From c70f915b491a9d10120bd2d11c8048e1a87ebddd Mon Sep 17 00:00:00 2001
From: Roberto Rosario <Roberto.Rosario.Gonzalez@gmail.com>
Date: Tue, 3 Jan 2012 06:53:44 -0400
Subject: [PATCH] Add 'has_embedded_signature' helper method to the GPG class

---
 apps/django_gpg/api.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/apps/django_gpg/api.py b/apps/django_gpg/api.py
index ecda9a97a5..329ffe612e 100644
--- a/apps/django_gpg/api.py
+++ b/apps/django_gpg/api.py
@@ -278,6 +278,14 @@ class GPG(object):
         if not destination:
             return signed_data
 
+    def has_embedded_signature(self, *args, **kwargs):
+        try:
+            self.decrypt_file(*args, **kwargs)
+        except GPGDecryptionError:
+            return False
+        else:
+            return True
+
     def decrypt_file(self, file_input, close_descriptor=True):
         input_descriptor = GPG.get_descriptor(file_input)