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# IVLE - Informatics Virtual Learning Environment
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# Copyright (C) 2007-2009 The University of Melbourne
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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# Author: Matt Giuca, Will Grant
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Database Classes and Utilities for Storm ORM
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This module provides all of the classes which map to database tables.
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It also provides miscellaneous utility functions for database interaction.
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from storm.locals import create_database, Store, Int, Unicode, DateTime, \
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def get_conn_string():
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Returns the Storm connection string, generated from the conf file.
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return "postgres://%s:%s@%s:%d/%s" % (ivle.conf.db_user,
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ivle.conf.db_password, ivle.conf.db_host, ivle.conf.db_port,
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Open a database connection and transaction. Return a storm.store.Store
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instance connected to the configured IVLE database.
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return Store(create_database(get_conn_string()))
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Represents an IVLE user.
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__storm_table__ = "login"
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id = Int(primary=True, name="loginid")
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last_login = DateTime()
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if self.rolenm is None:
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return ivle.caps.Role(self.rolenm)
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def _set_role(self, value):
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if not isinstance(value, ivle.caps.Role):
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raise TypeError("role must be an ivle.caps.Role")
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self.rolenm = unicode(value)
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role = property(_get_role, _set_role)
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def __init__(self, **kwargs):
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Create a new User object. Supply any columns as a keyword argument.
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for k,v in kwargs.items():
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if k.startswith('_') or not hasattr(self, k):
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raise TypeError("User got an unexpected keyword argument '%s'"
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return "<%s '%s'>" % (type(self).__name__, self.login)
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def authenticate(self, password):
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"""Validate a given password against this user.
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Returns True if the given password matches the password hash for this
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User, False if it doesn't match, and None if there is no hash for the
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if self.passhash is None:
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return self.hash_password(password) == self.passhash
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def hasCap(self, capability):
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"""Given a capability (which is a Role object), returns True if this
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User has that capability, False otherwise.
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return self.role.hasCap(capability)
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# XXX Should be @property
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def pass_expired(self):
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"""Determines whether the pass_exp field indicates that
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login should be denied.
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fieldval = self.pass_exp
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return fieldval is not None and time.localtime() > fieldval
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# XXX Should be @property
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def acct_expired(self):
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"""Determines whether the acct_exp field indicates that
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login should be denied.
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fieldval = self.acct_exp
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return fieldval is not None and time.localtime() > fieldval
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def hash_password(password):
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return md5.md5(password).hexdigest()
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def get_by_login(cls, store, login):
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Get the User from the db associated with a given store and
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return store.find(cls, cls.login == unicode(login)).one()