fix id_dsa check error (#458)

* fix id_dsa check error

* fix 邮件修改密码 token错误

* fix 3c8aec9 add )

apps/common/utils.py

@@ -180,15 +180,14 @@ def timesince(dt, since='', default="just now"):
 
 
 def ssh_key_string_to_obj(text):
-    key_f = StringIO(text)
     key = None
     try:
-        key = paramiko.RSAKey.from_private_key(key_f)
+        key = paramiko.RSAKey.from_private_key( StringIO(text) )
     except paramiko.SSHException:
         pass
 
     try:
-        key = paramiko.DSSKey.from_private_key(key_f)
+        key = paramiko.DSSKey.from_private_key( StringIO(text) )
     except paramiko.SSHException:
         pass
     return key

apps/users/models/user.py

@@ -189,7 +189,7 @@ class User(AbstractUser):
         return 'https://www.gravatar.com/avatar/c6812ab450230979465d7bf288eadce2a?s=120&d=identicon'
 
     def generate_reset_token(self):
-        return signer.sign_t({'reset': self.id, 'email': self.email}, expires_in=3600)
+        return signer.sign_t({'reset': self.id, 'email': self.email}, expires_in=3600).decode('utf-8')
 
     def to_json(self):
         return OrderedDict({