101 lines
2.7 KiB
Python
101 lines
2.7 KiB
Python
# -*- coding: utf-8 -*-
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"""
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(c) 2015-2016 - Copyright Red Hat Inc
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Authors:
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Pierre-Yves Chibon <pingou@pingoured.fr>
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Farhaan Bukhsh <farhaan.bukhsh@gmail.com>
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"""
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import random
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import string
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import bcrypt
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import hashlib
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import pagure
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from pagure.lib import model
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from kitchen.text.converters import to_unicode, to_bytes
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from cryptography.hazmat.primitives import constant_time
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def id_generator(size=15, chars=string.ascii_uppercase + string.digits):
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""" Generates a random identifier for the given size and using the
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specified characters.
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If no size is specified, it uses 15 as default.
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If no characters are specified, it uses ascii char upper case and
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digits.
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:arg size: the size of the identifier to return.
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:arg chars: the list of characters that can be used in the
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idenfitier.
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"""
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return ''.join(random.choice(chars) for x in range(size))
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def get_session_by_visitkey(session, sessionid):
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''' Return a specified VisitUser via its session identifier (visit_key).
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:arg session: the session with which to connect to the database.
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'''
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query = session.query(
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model.PagureUserVisit
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).filter(
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model.PagureUserVisit.visit_key == sessionid
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)
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return query.first()
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def get_users_by_group(session, group):
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''' Return the list of users for a specified group.
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:arg session: the session with which to connect to the database.
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'''
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query = session.query(
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model.User
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).filter(
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model.User.id == model.PagureUserGroup.user_id
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).filter(
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model.PagureUserGroup.group_id == model.PagureGroup.id
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).filter(
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model.PagureGroup.group_name == group
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).order_by(
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model.User.user
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)
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return query.all()
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def generate_hashed_value(password):
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""" Generate hash value for password
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"""
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return '$2$' + bcrypt.hashpw(to_unicode(password), bcrypt.gensalt())
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def check_password(entered_password, user_password, seed=None):
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""" Version checking and returning the password
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"""
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if not user_password.count('$') >= 2:
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raise pagure.exceptions.PagureException(
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'Password of unknown version found in the database'
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)
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_, version, user_password = user_password.split('$', 2)
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if version == '2':
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password = bcrypt.hashpw(to_unicode(entered_password), user_password)
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elif version == '1':
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password = '%s%s' % (to_unicode(entered_password), seed)
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password = hashlib.sha512(password).hexdigest()
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else:
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raise pagure.exceptions.PagureException(
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'Password of unknown version found in the database'
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)
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return constant_time.bytes_eq(
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to_bytes(password), to_bytes(user_password))
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