Merge pull request #151 from forrest-mao/add_callback_feature

add callback feature

Author: longbai

qiniu/auth.py

@@ -14,6 +14,8 @@
     'callbackUrl',
     'callbackBody',
     'callbackHost',
+    'callbackBodyType',
+    'callbackFetchKey',
 
     'returnUrl',
     'returnBody',
@@ -67,6 +69,7 @@ def token_of_request(self, url, body=None, content_type=None):
         if body:
             mimes = [
                 'application/x-www-form-urlencoded',
+                'application/json'
             ]
             if content_type in mimes:
                 data += body
@@ -115,8 +118,8 @@ def __upload_token(self, policy):
         data = json.dumps(policy, separators=(',', ':'))
         return self.token_with_data(data)
 
-    def verify_callback(self, origin_authorization, url, body):
-        token = self.token_of_request(url, body, 'application/x-www-form-urlencoded')
+    def verify_callback(self, origin_authorization, url, body, content_type='application/x-www-form-urlencoded'):
+        token = self.token_of_request(url, body, content_type)
         authorization = 'QBox {0}'.format(token)
         return origin_authorization == authorization