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"""Decorators for Kytos-utils.""" |
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import logging |
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import os |
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from getpass import getpass |
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import requests |
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from kytos.utils.config import KytosConfig |
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LOG = logging.getLogger(__name__) |
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# This class is used as decorator, so this class name is lowercase and the |
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# invalid-name warning from pylint is disabled below. |
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class kytos_auth: # pylint: disable=invalid-name |
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"""Class to be used as decorator to require authentication.""" |
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def __init__(self, func): |
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"""Init method. |
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Save the function on the func attribute and bootstrap a new config. |
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""" |
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self.func = func |
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self.config = KytosConfig().config |
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self.cls = None |
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self.obj = None |
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def __call__(self, *args, **kwargs): |
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"""Code run when func is called.""" |
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if not (self.config.has_option('napps', 'api') and |
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self.config.has_option('napps', 'repo')): |
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uri = input("Enter the kytos napps server address: ") |
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self.config.set('napps', 'api', os.path.join(uri, 'api', '')) |
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self.config.set('napps', 'repo', os.path.join(uri, 'repo', '')) |
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if not self.config.has_option('auth', 'user'): |
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user = input("Enter the username: ") |
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self.config.set('auth', 'user', user) |
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else: |
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user = self.config.get('auth', 'user') |
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if not self.config.has_option('auth', 'token'): |
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token = self.authenticate() |
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else: |
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token = self.config.get('auth', 'token') |
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# Ignore private attribute warning. We don't wanna make it public only |
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# because of a decorator. |
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config = self.obj._config # pylint: disable=protected-access |
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config.set('auth', 'user', user) |
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config.set('auth', 'token', token) |
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self.func.__call__(self.obj, *args, **kwargs) |
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def __get__(self, instance, owner): |
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"""Deal with owner class.""" |
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self.cls = owner |
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self.obj = instance |
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return self.__call__ |
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# pylint: disable=inconsistent-return-statements |
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def authenticate(self): |
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"""Check the user authentication.""" |
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endpoint = os.path.join(self.config.get('napps', 'api'), 'auth', '') |
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username = self.config.get('auth', 'user') |
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password = getpass('Enter the password for {}: '.format(username)) |
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try: |
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response = requests.get(endpoint, auth=(username, password), |
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timeout=20) |
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except (requests.exceptions.ConnectionError, |
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requests.exceptions.Timeout): |
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print(f"It couldn't connect to {endpoint}. Try again later.") |
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# Check if it is unauthorized |
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if response.status_code == 401: |
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print(f'Error with status code: {response.status_code}.\n' |
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'Possible causes: incorrect credentials, the token was ' |
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'not set or was expired.') |
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if response.status_code != 201: |
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LOG.error(response.content) |
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LOG.error('ERROR: %s: %s', response.status_code, response.reason) |
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print('Press Ctrl+C or CTRL+Z to stop the process.') |
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user = input('Enter the username: ') |
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self.config.set('auth', 'user', user) |
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self.authenticate() |
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else: |
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data = response.json() |
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KytosConfig().save_token(username, data.get('hash')) |
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return data.get('hash') |
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kytos-ng /
kytos-utils
