<reponame>leanhvu86/matrix-server
##############################################################################
#
# Copyright (c) 2002 Zope Foundation and Contributors.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Class initialization.
"""

import logging

from AccessControl.Permission import ApplicationDefaultPermissions  # NOQA


def InitializeClass(self):
    from AccessControl.Permission import registerPermissions
    from AccessControl.PermissionRole import PermissionRole

    dict = self.__dict__
    have = dict.__contains__
    ft = type(InitializeClass)
    dict_items = list(dict.items())

    for name, v in dict_items:
        if getattr(v, '_need__name__', 0):
            d = v.__dict__
            oldname = d.get('__name__', '')
            if d.get('_implicit__name__', 0):
                # Already supplied a name.
                if name != oldname:
                    # Tried to implicitly assign a different name!
                    try:
                        classname = '%s.%s' % (self.__module__, self.__name__)
                    except AttributeError:
                        classname = repr(self)
                    logging.getLogger("Init").warning(
                        'Ambiguous name for method of %s: %r != %r',
                        classname, d['__name__'], name)
            else:
                # Supply a name implicitly so that the method can
                # find the security assertions on its container.
                v._implicit__name__ = 1
                v.__name__ = name
            if name == 'manage' or name[:7] == 'manage_':
                name = name + '__roles__'
                if not have(name):
                    setattr(self, name, ('Manager',))
        elif name == 'manage' or name[:7] == 'manage_' and type(v) is ft:
            name = name + '__roles__'
            if not have(name):
                setattr(self, name, ('Manager',))

    # Look for a SecurityInfo object on the class. If found, call its
    # apply() method to generate __ac_permissions__ for the class. We
    # delete the SecurityInfo from the class dict after it has been
    # applied out of paranoia.
    for key, value in dict_items:
        if hasattr(value, '__security_info__'):
            security_info = value
            security_info.apply(self)
            delattr(self, key)
            break

    if '__ac_permissions__' in self.__dict__:
        registerPermissions(self.__ac_permissions__)
        for acp in self.__ac_permissions__:
            pname, mnames = acp[:2]
            if len(acp) > 2:
                roles = acp[2]
                pr = PermissionRole(pname, roles)
            else:
                pr = PermissionRole(pname)
            for mname in mnames:
                setattr(self, mname + '__roles__', pr)
                if mname and \
                   mname not in ('context', 'request') and \
                   not hasattr(self, mname):
                    # don't complain about context or request, as they are
                    # frequently not available as class attributes
                    logging.getLogger("Init").warning(
                        "Class %s.%s has a security declaration for "
                        "nonexistent method %r", self.__module__,
                        self.__name__, mname)


default__class_init__ = InitializeClass  # BBB: old name
