210 lines
7.2 KiB
Python
210 lines
7.2 KiB
Python
# -*- mode: python -*-
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# -*- coding: utf-8 -*-
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"""Functions checking permissions for some common operations
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"""
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from flask import g
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from flask_login import current_user
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import app.scodoc.notesdb as ndb
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from app.scodoc.sco_permissions import Permission
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from app.scodoc import html_sco_header
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from app.scodoc import sco_etud
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from app.scodoc import sco_exceptions
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from app.scodoc import sco_moduleimpl
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def can_edit_notes(authuser, moduleimpl_id, allow_ens=True):
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"""True if authuser can enter or edit notes in this module.
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If allow_ens, grant access to all ens in this module
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Si des décisions de jury ont déjà été saisies dans ce semestre,
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seul le directeur des études peut saisir des notes (et il ne devrait pas).
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"""
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from app.scodoc import sco_formsemestre
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from app.scodoc import sco_parcours_dut
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context = None # XXX #context
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uid = str(authuser)
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M = sco_moduleimpl.do_moduleimpl_list(context, moduleimpl_id=moduleimpl_id)[0]
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sem = sco_formsemestre.get_formsemestre(context, M["formsemestre_id"])
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if not sem["etat"]:
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return False # semestre verrouillé
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if sco_parcours_dut.formsemestre_has_decisions(context, sem["formsemestre_id"]):
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# il y a des décisions de jury dans ce semestre !
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return (
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authuser.has_permission(Permission.ScoEditAllNotes)
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or uid in sem["responsables"]
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)
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else:
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if (
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(not authuser.has_permission(Permission.ScoEditAllNotes))
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and uid != M["responsable_id"]
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and uid not in sem["responsables"]
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):
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# enseignant (chargé de TD) ?
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if allow_ens:
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for ens in M["ens"]:
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if ens["ens_id"] == uid:
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return True
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return False
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else:
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return True
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def can_edit_evaluation(moduleimpl_id=None):
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"""Vérifie que l'on a le droit de modifier, créer ou détruire une
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évaluation dans ce module.
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Sinon, lance une exception.
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(nb: n'implique pas le droit de saisir ou modifier des notes)
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"""
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context = None # #context
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# was _evaluation_check_write_access
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# AccessDenied("Modification évaluation impossible pour %s" % (uid,))
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from app.scodoc import sco_formsemestre
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# acces pour resp. moduleimpl et resp. form semestre (dir etud)
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if moduleimpl_id is None:
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raise ValueError("no moduleimpl specified") # bug
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uid = current_user.user_name
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M = sco_moduleimpl.do_moduleimpl_list(context, moduleimpl_id=moduleimpl_id)[0]
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sem = sco_formsemestre.get_formsemestre(context, M["formsemestre_id"])
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if (
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current_user.has_permission(Permission.ScoEditAllEvals)
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or uid == M["responsable_id"]
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or uid in sem["responsables"]
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):
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return True
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elif sem["ens_can_edit_eval"]:
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for ens in M["ens"]:
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if ens["ens_id"] == uid:
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return True
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return False
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def can_suppress_annotation(annotation_id):
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"""True if current user can suppress this annotation
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Seuls l'auteur de l'annotation et le chef de dept peuvent supprimer
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une annotation.
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"""
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cnx = ndb.GetDBConnexion()
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annos = sco_etud.etud_annotations_list(cnx, args={"id": annotation_id})
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if len(annos) != 1:
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raise sco_exceptions.ScoValueError("annotation inexistante !")
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anno = annos[0]
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return (
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current_user.user_name == anno["zope_authenticated_user"]
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) or current_user.has_permission(Permission.ScoEtudAddAnnotations)
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def can_edit_suivi():
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"""Vrai si l'utilisateur peut modifier les informations de suivi sur la page etud" """
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return current_user.has_permission(Permission.ScoEtudChangeAdr)
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def can_validate_sem(formsemestre_id):
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"Vrai si utilisateur peut saisir decision de jury dans ce semestre"
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from app.scodoc import sco_formsemestre
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context = None # XXX #context
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sem = sco_formsemestre.get_formsemestre(context, formsemestre_id)
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if not sem["etat"]:
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return False # semestre verrouillé
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return is_chef_or_diretud(sem)
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def can_edit_pv(formsemestre_id):
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"Vrai si utilisateur peut editer un PV de jury de ce semestre"
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from app.scodoc import sco_formsemestre
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context = None # XXX #context
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sem = sco_formsemestre.get_formsemestre(context, formsemestre_id)
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if is_chef_or_diretud(sem):
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return True
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# Autorise les secrétariats, repérés via la permission ScoEtudChangeAdr
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# (ceci nous évite d'ajouter une permission Zope aux installations existantes)
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return current_user.has_permission(Permission.ScoEtudChangeAdr)
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def is_chef_or_diretud(sem):
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"Vrai si utilisateur est admin, chef dept ou responsable du semestre"
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if (
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current_user.has_permission(Permission.ScoImplement)
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or current_user.user_name in sem["responsables"]
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):
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return True
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return False
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def check_access_diretud(formsemestre_id, required_permission=Permission.ScoImplement):
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"""Check if access granted: responsable or ScoImplement
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Return True|False, HTML_error_page
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"""
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from app.scodoc import sco_formsemestre
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context = None # XXX #context
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sem = sco_formsemestre.get_formsemestre(context, formsemestre_id)
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header = html_sco_header.sco_header(page_title="Accès interdit")
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footer = html_sco_header.sco_footer()
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if (
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current_user.user_name not in sem["responsables"]
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) and not current_user.has_permission(required_permission):
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return (
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False,
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"\n".join(
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[
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header,
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"<h2>Opération non autorisée pour %s</h2>" % current_user,
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"<p>Responsable de ce semestre : <b>%s</b></p>"
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% ", ".join(sem["responsables"]),
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footer,
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]
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),
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)
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else:
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return True, ""
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def can_change_groups(formsemestre_id):
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"Vrai si l'utilisateur peut changer les groupes dans ce semestre"
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from app.scodoc import sco_formsemestre
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context = None # XXX #context
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sem = sco_formsemestre.get_formsemestre(context, formsemestre_id)
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if not sem["etat"]:
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return False # semestre verrouillé
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if current_user.has_permission(Permission.ScoEtudChangeGroups):
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return True # admin, chef dept
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if current_user.user_name in sem["responsables"]:
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return True
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return False
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def can_handle_passwd(user, allow_admindepts=False):
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"""True if the current user can see or change passwd info of user.
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If allow_admindepts, allow Admin from all depts (so they can view users from other depts
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and add roles to them).
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user is a User instance.
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"""
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if not user:
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return False
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if current_user.is_administrator():
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return True # super admin
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# Anyone can change his own passwd (or see his informations)
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if user.user_name == current_user.user_name:
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return True
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# If don't have permission in the current dept, abort
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if not current_user.has_permission(Permission.ScoUsersAdmin, g.scodoc_dept):
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return False
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# Now check that current_user can manage users from this departement
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if not current_user.dept:
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return True # if no dept, can access users from all depts !
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if (current_user.dept == user.dept) or allow_admindepts:
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return True
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else:
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return False |