kotti.security

class kotti.security.AbstractPrincipals[source]

This class serves as documentation and defines what methods are expected from a Principals database.

Principals mostly provides dict-like access to the principal objects in the database. In addition, there’s the ‘search’ method which allows searching users and groups.

‘hash_password’ is for initial hashing of a clear text password, while ‘validate_password’ is used by the login to see if the entered password matches the hashed password that’s already in the database.

Use the ‘kotti.principals’ settings variable to override Kotti’s default Principals implementation with your own.

hash_password(password)[source]

Return a hash of the given password.

This is what’s stored in the database as ‘principal.password’.

keys()[source]

Return a list of principal ids that are in the database.

search(**kwargs)[source]

Return an iterable with principal objects that correspond to the search arguments passed in.

This example would return all principals with the id ‘bob’:

get_principals().search(name=u’bob’)

Here, we ask for all principals that have ‘bob’ in either their ‘name’ or their ‘title’. We pass ‘bob‘ instead of ‘bob’ to indicate that we want case-insensitive substring matching:

get_principals().search(name=u’bob‘, title=u’bob‘)

This call should fail with AttributeError unless there’s a ‘foo’ attribute on principal objects that supports search:

get_principals().search(name=u’bob’, foo=u’bar’)
validate_password(clear, hashed)[source]

Returns True if the clear text password matches the hash.

class kotti.security.Principal(name, password=None, active=True, confirm_token=None, title=u'', email=None, groups=())[source]

A minimal ‘Principal’ implementation.

The attributes on this object correspond to what one ought to implement to get full support by the system. You’re free to add additional attributes.

  • As convenience, when passing ‘password’ in the initializer, it is hashed using ‘get_principals().hash_password’
  • The boolean ‘active’ attribute defines whether a principal may log in. This allows the deactivation of accounts without deleting them.
  • The ‘confirm_token’ attribute is set whenever a user has forgotten their password. This token is used to identify the receiver of the email. This attribute should be set to ‘None’ once confirmation has succeeded.
class kotti.security.Principals[source]

Kotti’s default principal database.

Look at ‘AbstractPrincipals’ for documentation.

This is a default implementation that may be replaced by using the ‘kotti.principals’ settings variable.

factory

alias of Principal

kotti.security.list_groups(name, context=None)[source]

List groups for principal with a given name.

The optional context argument may be passed to check the list of groups in a given context.

kotti.security.or_(*clauses)

Produce a conjunction of expressions joined by OR.

E.g.:

from sqlalchemy import or_

stmt = select([users_table]).where(
                or_(
                    users_table.c.name == 'wendy',
                    users_table.c.name == 'jack'
                )
            )

The or_() conjunction is also available using the Python | operator (though note that compound expressions need to be parenthesized in order to function with Python operator precedence behavior):

stmt = select([users_table]).where(
                (users_table.c.name == 'wendy') |
                (users_table.c.name == 'jack')
            )

See also

and_()

kotti.security.principals_with_local_roles(context, inherit=True)[source]

Return a list of principal names that have local roles in the context.

kotti.security.set_groups(name, context, groups_to_set=())[source]

Set the list of groups for principal with given name and in given context.