Completed
Pull Request — master (#442)
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unknown
02:00
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Auth.run()   D

Complexity

Conditions 11

Size

Total Lines 56

Duplication

Lines 0
Ratio 0 %
Metric Value
cc 11
dl 0
loc 56
rs 4.4262

How to fix   Long Method    Complexity   

Long Method

Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.

For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.

Commonly applied refactorings include:

Complexity

Complex classes like Auth.run() often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.

Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.

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#!/usr/bin/env python
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# Licensed to the StackStorm, Inc ('StackStorm') under one or more
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# contributor license agreements.  See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License.  You may obtain a copy of the License at
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#
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#     http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import urllib
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from lib.actions import AuthAction
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class Auth(AuthAction):
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    def run(self, username, factor,
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            ipaddr, device, push_type, passcode, pushinfo):
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        """
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        Auth against the Duo Platorm.
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        Returns: An dict with info returned by Duo.
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        Raises:
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          ValueError: 'Duo config not found in config' or 'Invalid factor'
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          RuntimeError: 'Failed auth.'
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        """
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        auth_kargs = {}
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        if factor == "auto" or factor == "push":
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            auth_kargs['type'] = push_type
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            auth_kargs['device'] = device
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            if ipaddr is not None:
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                auth_kargs['ipaddr'] = ipaddr
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            if pushinfo is not None:
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                info = {}
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                for value in pushinfo.split('; '):
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                    (key, value) = value.split('=')
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                    info[key] = value
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                encoded = urllib.urlencode(info)
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                auth_kargs['pushinfo'] = encoded
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        elif factor == "passcode":
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            auth_kargs['passcode'] = passcode
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        elif factor == "phone":
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            auth_kargs['device'] = device
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        elif factor == "sms":
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            # As 'sms' just denies and then we do not support it
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            # requires re-authentication.
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            raise ValueError("Denied, we do not support SMS!")
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        else:
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            raise ValueError("Invalid factor!")
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        try:
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            data = self.duo_auth.auth(factor=factor,
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                                      username=username,
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                                      **auth_kargs)
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        except RuntimeError, e:
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            raise RuntimeError("Error: %s" % e)
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        else:
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            if data['result'] == "allow":
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                return data
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            elif data['result'] == "deny":
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                self.send_user_error(data['status_msg'])
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                raise RuntimeError("{}".format(
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                    data['status_msg']))
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            else:
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                raise RuntimeError("Invalid status")
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