Move algorithm checks to Signer

Author: fulder

httpsig/sign.py

@@ -30,6 +30,8 @@ def __init__(self, secret, algorithm=None, sign_algorithm=None):
 
         if algorithm != DEFAULT_ALGORITHM:
             print("Algorithm: {} is deprecated please update to {}".format(algorithm, DEFAULT_ALGORITHM))
+        elif algorithm == DEFAULT_ALGORITHM and sign_algorithm is None:
+            raise HttpSigException("Required sign algorithm for {} algorithm not set".format(DEFAULT_ALGORITHM))
 
         if isinstance(secret, six.string_types):
             secret = secret.encode("ascii")

httpsig/verify.py

@@ -92,13 +92,8 @@ def __init__(self, headers, secret, required_headers=None, method=None,
         self.host = host
         self.derived_algorithm = algorithm
 
-        if self.auth_dict['algorithm'] != DEFAULT_ALGORITHM:
-            print("Algorithm: {} is deprecated please update to {}".format(self.auth_dict['algorithm'], DEFAULT_ALGORITHM))
-        elif self.auth_dict['algorithm'] == DEFAULT_ALGORITHM and sign_algorithm is None:
-            raise HttpSigException("Required sign algorithm for {} algorithm not set".format(DEFAULT_ALGORITHM))
-
         super(HeaderVerifier, self).__init__(
-                secret, algorithm=self.auth_dict['algorithm'], sign_algorithm=sign_algorithm)
+            secret, algorithm=self.auth_dict['algorithm'], sign_algorithm=sign_algorithm)
 
     def verify(self):
         """