Strip leading and trailing whitespace before parsing.

dkim/__init__.py

@@ -296,10 +296,10 @@ class DKIM(object):
         return False
 
     # Currently, we only validate the first DKIM-Signature line found.
-    try:
+    #try:
     sig = parse_tag_value(sigheaders[0][1])
-    except InvalidTagValueList,e:
-        raise MessageFormatError(e)
+    #except InvalidTagValueList,e:
+    #    raise MessageFormatError(e)
 
     sig = parse_tag_value(sigheaders[0][1])
     logger = self.logger

dkim/util.py

@@ -55,7 +55,7 @@ def parse_tag_value(tag_list):
     @param tag_list: A string containing a DKIM Tag=Value list.
     """
     tags = {}
-    tag_specs = tag_list.split(b';')
+    tag_specs = tag_list.strip().split(b';')
     # Trailing semicolons are valid.
     if not tag_specs[-1]:
         tag_specs.pop()

dkimverify.py

@@ -32,7 +32,8 @@ if sys.version_info[0] >= 3:
     sys.stdin = sys.stdin.detach()
 
 message = sys.stdin.read()
-if not dkim.verify(message):
+d = dkim.DKIM(message)
+if not d.verify():
     print("signature verification failed")
     sys.exit(1)
 print("signature ok")

testutil.py

@@ -13,7 +13,8 @@ class ParseTestCase(unittest.TestCase):
         3KzW0yB9JHwiDCw1EioVkv+OMHhAYzoIypA0bQyi2bc=;
 '''
     sig = parse_tag_value(hval)
-    print sig
+    self.assertEquals(sig[b't'],'1308078492')
+    self.assertEquals(len(sig),11)
 
 def suite(): 
   s = unittest.makeSuite(ParseTestCase,'test')