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# SchoolTool - common information systems platform for school administration
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# Copyright (c) 2005 Shuttleworth Foundation
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from zope.authentication.interfaces import IUnauthenticatedPrincipal
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from zope.component import getUtility
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from zope.intid.interfaces import IIntIds
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from zope.security.proxy import removeSecurityProxy
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from schooltool.app.membership import URIGroup
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from schooltool.contact.interfaces import IContact
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from schooltool.course.interfaces import ISection
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from schooltool.person.interfaces import IPerson
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from schooltool.relationship.relationship import getRelatedObjects
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from schooltool.securitypolicy import crowds
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from schooltool.intervention import InterventionGettext as _
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class InterventionInstructorsCrowd(crowds.Crowd):
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"""Crowd of instructors of the student indicated by the given
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intervention object."""
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title = _(u'Instructors')
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description = _(u'Instructors of a student in any of his sections.')
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def _getSections(self, ob):
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return [section for section in getRelatedObjects(ob, URIGroup)
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if ISection.providedBy(section)]
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def contains(self, principal):
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if IUnauthenticatedPrincipal.providedBy(principal):
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teacher = IPerson(principal)
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student = removeSecurityProxy(IPerson(self.context))
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for section in self._getSections(student):
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if teacher in section.instructors:
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class InterventionAdvisorsCrowd(crowds.Crowd):
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"""Crowd of advisors of the student indicated by the given
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intervention object."""
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title = _(u'Advisors')
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description = _(u'Advisors of a student.')
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def contains(self, principal):
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if IUnauthenticatedPrincipal.providedBy(principal):
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teacher = IPerson(principal)
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student = removeSecurityProxy(IPerson(self.context))
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return teacher in student.advisors
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class BaseResponsibleCrowd(crowds.Crowd):
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"""Crowd of any user who is on the list of persons responsible for the
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def contains(self, principal):
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if IUnauthenticatedPrincipal.providedBy(principal):
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if not interfaces.IInterventionMarker.providedBy(self.context):
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responsible = interfaces.IInterventionPersonsResponsible(self.context)
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contact_id = getUtility(IIntIds).getId(IContact(IPerson(principal)))
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return contact_id in responsible
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class StaffResponsibleCrowd(BaseResponsibleCrowd):
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"""Crowd of school staff who are on the list of persons responsible for the
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title = _(u'Staff responsible')
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description = _(u'Staff members responsible for the message or goal.')
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def contains(self, principal):
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if not super(StaffResponsibleCrowd, self).contains(principal):
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student = removeSecurityProxy(IPerson(self.context))
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return IPerson(principal).username != student.username
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class StudentResponsibleCrowd(BaseResponsibleCrowd):
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"""Crowd containing the student who is in the list of persons responsible
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for the message or goal."""
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title = _(u'Students responsible')
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description = _(u'Students responsible for the message or goal.')
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def contains(self, principal):
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if not super(StudentResponsibleCrowd, self).contains(principal):
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student = removeSecurityProxy(IPerson(self.context))
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return IPerson(principal).username == student.username
added
removed
src/schooltool/intervention/security.py
