forked from ScoDoc/ScoDoc
713 lines
26 KiB
Python
713 lines
26 KiB
Python
# -*- mode: python -*-
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# -*- coding: utf-8 -*-
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##############################################################################
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#
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# ScoDoc
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#
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# Copyright (c) 1999 - 2021 Emmanuel Viennet. All rights reserved.
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#
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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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#
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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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#
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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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#
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# Emmanuel Viennet emmanuel.viennet@viennet.net
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#
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##############################################################################
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"""
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Module users: interface gestion utilisateurs
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ré-écriture pour Flask ScoDoc7 / ZScoUsers.py
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Vues s'appuyant sur auth et sco_users
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Emmanuel Viennet, 2021
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"""
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import datetime
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import re
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from xml.etree import ElementTree
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import flask
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from flask import g, url_for, request
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from flask import redirect, render_template
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from flask_login import current_user
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from app import db
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from app.auth.forms import DeactivateUserForm
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from app.auth.models import Permission
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from app.auth.models import User
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from app.auth.models import Role
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from app.auth.models import UserRole
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from app.models import Departement
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from app.decorators import (
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scodoc,
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scodoc7func,
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permission_required,
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)
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from app.scodoc import html_sco_header, sco_import_users, sco_excel
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from app.scodoc import sco_users
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from app.scodoc import sco_utils as scu
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from app.scodoc import sco_xml
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from app import log
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from app.scodoc.sco_exceptions import AccessDenied, ScoValueError
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from app.scodoc.sco_permissions_check import can_handle_passwd
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from app.scodoc.TrivialFormulator import TrivialFormulator, tf_error_message
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from app.scodoc.sco_excel import send_excel_file
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from app.scodoc.sco_import_users import generate_excel_sample
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from app.views import users_bp as bp
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@bp.route("/")
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@bp.route("/index_html")
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@scodoc
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@permission_required(Permission.ScoUsersView)
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@scodoc7func
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def index_html(REQUEST, all_depts=False, with_inactives=False, format="html"):
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return sco_users.index_html(
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REQUEST=REQUEST,
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all_depts=all_depts,
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with_inactives=with_inactives,
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format=format,
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)
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@bp.route("/user_info")
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@scodoc
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@permission_required(Permission.ScoUsersView)
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@scodoc7func
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def user_info(user_name, format="json", REQUEST=None):
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info = sco_users.user_info(user_name)
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return scu.sendResult(REQUEST, info, name="user", format=format)
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@bp.route("/create_user_form", methods=["GET", "POST"])
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@scodoc
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@permission_required(Permission.ScoUsersAdmin)
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@scodoc7func
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def create_user_form(REQUEST, user_name=None, edit=0):
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"form. creation ou edit utilisateur"
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auth_dept = current_user.dept
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initvalues = {}
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edit = int(edit)
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H = [html_sco_header.sco_header(bodyOnLoad="init_tf_form('')")]
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F = html_sco_header.sco_footer()
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if edit:
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if not user_name:
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raise ValueError("missing argument: user_name")
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u = User.query.filter_by(user_name=user_name).first()
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if not u:
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raise ScoValueError("utilisateur inexistant")
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initvalues = u.to_dict()
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H.append("<h2>Modification de l'utilisateur %s</h2>" % user_name)
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else:
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H.append("<h2>Création d'un utilisateur</h2>")
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is_super_admin = False
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if current_user.has_permission(Permission.ScoSuperAdmin, g.scodoc_dept):
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H.append("""<p class="warning">Vous êtes super administrateur !</p>""")
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is_super_admin = True
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# Les rôles standards créés à l'initialisation de ScoDoc:
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standard_roles = [Role.get_named_role(r) for r in ("Ens", "Secr", "Admin")]
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# Rôles pouvant etre attribués aux utilisateurs via ce dialogue:
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# si SuperAdmin, tous les rôles standards dans tous les départements
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# sinon, les départements dans lesquels l'utilisateur a le droit
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if is_super_admin:
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log("create_user_form called by %s (super admin)" % (current_user.user_name,))
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dept_ids = [d.acronym for d in Departement.query.all()]
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else:
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# Si on n'est pas SuperAdmin, liste les départements dans lesquels on a la
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# permission ScoUsersAdmin
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dept_ids = sorted(
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set(
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[
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x.dept
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for x in UserRole.query.filter_by(user=current_user)
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if x.role.has_permission(Permission.ScoUsersAdmin) and x.dept
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]
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)
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)
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editable_roles_set = {(r, dept) for r in standard_roles for dept in dept_ids}
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#
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if not edit:
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submitlabel = "Créer utilisateur"
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orig_roles = set()
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else:
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submitlabel = "Modifier utilisateur"
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if "roles_string" in initvalues:
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initvalues["roles"] = initvalues["roles_string"].split(",")
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else:
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initvalues["roles"] = []
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if "date_expiration" in initvalues:
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initvalues["date_expiration"] = (
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u.date_expiration.strftime("%d/%m/%Y") if u.date_expiration else ""
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)
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initvalues["status"] = "" if u.active else "old"
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orig_roles = { # set des roles existants avant édition
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UserRole.role_dept_from_string(role_dept)
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for role_dept in initvalues["roles"]
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}
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if not initvalues["active"]:
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editable_roles_set = set() # can't change roles of a disabled user
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editable_roles_strings = {r.name + "_" + dept for (r, dept) in editable_roles_set}
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orig_roles_strings = {r.name + "_" + dept for (r, dept) in orig_roles}
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# add existing user roles
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displayed_roles = list(editable_roles_set.union(orig_roles))
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displayed_roles.sort(key=lambda x: (x[1], x[0].name))
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displayed_roles_strings = [r.name + "_" + dept for (r, dept) in displayed_roles]
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displayed_roles_labels = [
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"{dept}: {r.name}".format(dept=dept, r=r) for (r, dept) in displayed_roles
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]
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disabled_roles = {} # pour desactiver les roles que l'on ne peut pas editer
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for i in range(len(displayed_roles_strings)):
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if displayed_roles_strings[i] not in editable_roles_strings:
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disabled_roles[i] = True
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descr = [
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("edit", {"input_type": "hidden", "default": edit}),
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("nom", {"title": "Nom", "size": 20, "allow_null": False}),
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("prenom", {"title": "Prénom", "size": 20, "allow_null": False}),
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]
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if current_user.user_name != user_name:
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# no one can change its own status
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descr.append(
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(
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"status",
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{
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"title": "Statut",
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"input_type": "radio",
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"labels": ("actif", "ancien"),
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"allowed_values": ("", "old"),
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},
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)
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)
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if not edit:
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descr += [
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(
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"user_name",
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{
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"title": "Pseudo (login)",
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"size": 20,
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"allow_null": False,
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"explanation": "nom utilisé pour la connexion. Doit être unique parmi tous les utilisateurs.",
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},
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),
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(
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"passwd",
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{
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"title": "Mot de passe",
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"input_type": "password",
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"size": 14,
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"allow_null": True,
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"explanation": "optionnel, l'utilisateur pourra le saisir avec son mail",
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},
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),
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(
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"passwd2",
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{
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"title": "Confirmer mot de passe",
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"input_type": "password",
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"size": 14,
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"allow_null": True,
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},
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),
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]
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else:
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descr += [
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(
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"user_name",
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{"input_type": "hidden", "default": initvalues["user_name"]},
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),
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("user_name", {"input_type": "hidden", "default": initvalues["user_name"]}),
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]
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descr += [
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(
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"email",
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{
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"title": "e-mail",
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"input_type": "text",
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"explanation": "requis, doit fonctionner",
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"size": 20,
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"allow_null": False,
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},
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)
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]
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if not auth_dept:
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# si auth n'a pas de departement (admin global)
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# propose de choisir le dept du nouvel utilisateur
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# sinon, il sera créé dans le même département que auth
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descr.append(
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(
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"dept",
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{
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"title": "Département",
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"input_type": "text",
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"size": 12,
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"allow_null": True,
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"explanation": """département d\'appartenance de l\'utilisateur (s'il s'agit d'un administrateur, laisser vide si vous voulez qu'il puisse créer des utilisateurs dans d'autres départements)""",
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},
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)
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)
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can_choose_dept = True
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else:
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can_choose_dept = False
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if edit:
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descr.append(
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(
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"d",
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{
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"input_type": "separator",
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"title": "L'utilisateur appartient au département %s"
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% auth_dept,
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},
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)
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)
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else:
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descr.append(
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(
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"d",
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{
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"input_type": "separator",
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"title": "L'utilisateur sera crée dans le département %s"
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% auth_dept,
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},
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)
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)
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descr += [
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(
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"date_expiration",
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{
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"title": "Date d'expiration", # j/m/a
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"input_type": "date",
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"explanation": "j/m/a, laisser vide si pas de limite",
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"size": 9,
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"allow_null": True,
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},
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),
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(
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"roles",
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{
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"title": "Rôles",
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"input_type": "checkbox",
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"vertical": True,
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"labels": displayed_roles_labels,
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"allowed_values": displayed_roles_strings,
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"disabled_items": disabled_roles,
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},
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),
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(
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"force",
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{
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"title": "Ignorer les avertissements",
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"input_type": "checkbox",
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"explanation": "passer outre les avertissements (homonymes, etc)",
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"labels": ("",),
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"allowed_values": ("1",),
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},
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),
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]
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if "tf_submitted" in REQUEST.form and not "roles" in REQUEST.form:
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REQUEST.form["roles"] = []
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if "tf_submitted" in REQUEST.form:
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# Ajoute roles existants mais non modifiables (disabled dans le form)
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REQUEST.form["roles"] = list(
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set(REQUEST.form["roles"]).union(
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orig_roles_strings - editable_roles_strings
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)
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)
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tf = TrivialFormulator(
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REQUEST.URL0,
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REQUEST.form,
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descr,
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initvalues=initvalues,
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submitlabel=submitlabel,
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cancelbutton="Annuler",
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)
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if tf[0] == 0:
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return "\n".join(H) + "\n" + tf[1] + F
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elif tf[0] == -1:
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return flask.redirect(scu.UsersURL())
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else:
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vals = tf[2]
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roles = set(vals["roles"]).intersection(editable_roles_strings)
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if "edit" in REQUEST.form:
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edit = int(REQUEST.form["edit"])
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else:
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edit = 0
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try:
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force = int(vals["force"][0])
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except (IndexError, ValueError, TypeError):
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force = 0
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if edit:
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user_name = initvalues["user_name"]
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else:
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user_name = vals["user_name"]
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# ce login existe ?
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err = None
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users = sco_users._user_list(user_name)
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if edit and not users: # safety net, le user_name ne devrait pas changer
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err = "identifiant %s inexistant" % user_name
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if not edit and users:
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err = "identifiant %s déjà utilisé" % user_name
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if err:
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H.append(tf_error_message("""Erreur: %s""" % err))
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return "\n".join(H) + "\n" + tf[1] + F
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if not force:
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ok, msg = sco_users.check_modif_user(
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edit,
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user_name=user_name,
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nom=vals["nom"],
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prenom=vals["prenom"],
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email=vals["email"],
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roles=vals["roles"],
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)
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if not ok:
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H.append(
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tf_error_message(
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"""Attention: %s (vous pouvez forcer l'opération en cochant "<em>Ignorer les avertissements</em>" en bas de page)"""
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% msg
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)
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)
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return "\n".join(H) + "\n" + tf[1] + F
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if edit: # modif utilisateur (mais pas passwd ni user_name !)
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if (not can_choose_dept) and "dept" in vals:
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del vals["dept"]
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if "passwd" in vals:
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del vals["passwd"]
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if "date_modif_passwd" in vals:
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del vals["date_modif_passwd"]
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if "user_name" in vals:
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del vals["user_name"]
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if (current_user.user_name == user_name) and "status" in vals:
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del vals["status"] # no one can't change its own status
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if "date_expiration" in vals:
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try:
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if vals["date_expiration"]:
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vals["date_expiration"] = datetime.datetime.strptime(
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vals["date_expiration"], "%d/%m/%Y"
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)
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else:
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vals["date_expiration"] = None
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except ValueError:
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H.append(tf_error_message("date expiration invalide"))
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return "\n".join(H) + "\n" + tf[1] + F
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if "status" in vals:
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vals["active"] = vals["status"] == ""
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# traitement des roles: ne doit pas affecter les roles
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# que l'on en controle pas:
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for role in orig_roles_strings: # { "Ens_RT", "Secr_CJ", ... }
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if role and not role in editable_roles_strings:
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roles.add(role)
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vals["roles_string"] = ",".join(roles)
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# ok, edit
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log("sco_users: editing %s by %s" % (user_name, current_user.user_name))
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log("sco_users: previous_values=%s" % initvalues)
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log("sco_users: new_values=%s" % vals)
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sco_users.user_edit(user_name, vals)
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return flask.redirect(
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"user_info_page?user_name=%s&head_message=Utilisateur %s modifié"
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% (user_name, user_name)
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)
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else: # creation utilisateur
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vals["roles_string"] = ",".join(vals["roles"])
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# check identifiant
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if not re.match(r"^[a-zA-Z0-9@\\\-_\\\.]+$", vals["user_name"]):
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msg = tf_error_message(
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"identifiant invalide (pas d'accents ni de caractères spéciaux)"
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)
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return "\n".join(H) + msg + "\n" + tf[1] + F
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# check passwords
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if vals["passwd"]:
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if vals["passwd"] != vals["passwd2"]:
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msg = tf_error_message(
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"""Les deux mots de passes ne correspondent pas !"""
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)
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return "\n".join(H) + msg + "\n" + tf[1] + F
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if not sco_users.is_valid_password(vals["passwd"]):
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msg = tf_error_message(
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"""Mot de passe trop simple, recommencez !"""
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)
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return "\n".join(H) + msg + "\n" + tf[1] + F
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if not can_choose_dept:
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vals["dept"] = auth_dept
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# ok, go
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log(
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"sco_users: new_user %s by %s"
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% (vals["user_name"], current_user.user_name)
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)
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u = User()
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u.from_dict(vals, new_user=True)
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db.session.add(u)
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db.session.commit()
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return flask.redirect(
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url_for(
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"users.user_info_page",
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scodoc_dept=g.scodoc_dept,
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user_name=user_name,
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head_message="Nouvel utilisateur créé",
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)
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)
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@bp.route("/import_users_generate_excel_sample")
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@scodoc
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@permission_required(Permission.ScoUsersAdmin)
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@scodoc7func
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def import_users_generate_excel_sample(REQUEST):
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"une feuille excel pour importation utilisateurs"
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data = sco_import_users.generate_excel_sample()
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return sco_excel.send_excel_file(
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REQUEST, data, "ImportUtilisateurs" + scu.XLSX_SUFFIX
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)
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@bp.route("/import_users_form", methods=["GET", "POST"])
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@scodoc
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@permission_required(Permission.ScoUsersAdmin)
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@scodoc7func
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def import_users_form(REQUEST=None):
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"""Import utilisateurs depuis feuille Excel"""
|
|
head = html_sco_header.sco_header(page_title="Import utilisateurs")
|
|
H = [
|
|
head,
|
|
"""<h2>Téléchargement d'une nouvelle liste d'utilisateurs</h2>
|
|
<p style="color: red">A utiliser pour importer de <b>nouveaux</b> utilisateurs (enseignants ou secrétaires)
|
|
</p>
|
|
<p>
|
|
L'opération se déroule en deux étapes. Dans un premier temps,
|
|
vous téléchargez une feuille Excel type. Vous devez remplir
|
|
cette feuille, une ligne décrivant chaque utilisateur. Ensuite,
|
|
vous indiquez le nom de votre fichier dans la case "Fichier Excel"
|
|
ci-dessous, et cliquez sur "Télécharger" pour envoyer au serveur
|
|
votre liste.
|
|
</p>
|
|
""",
|
|
]
|
|
help = """<p class="help">
|
|
Lors de la creation des utilisateurs, les opérations suivantes sont effectuées:
|
|
</p>
|
|
<ol class="help">
|
|
<li>vérification des données;</li>
|
|
<li>génération d'un mot de passe alétoire pour chaque utilisateur;</li>
|
|
<li>création de chaque utilisateur;</li>
|
|
<li>envoi à chaque utilisateur de son <b>mot de passe initial par mail</b>.</li>
|
|
</ol>"""
|
|
H.append(
|
|
"""<ol><li><a class="stdlink" href="import_users_generate_excel_sample">
|
|
Obtenir la feuille excel à remplir</a></li><li>"""
|
|
)
|
|
F = html_sco_header.sco_footer()
|
|
tf = TrivialFormulator(
|
|
REQUEST.URL0,
|
|
REQUEST.form,
|
|
(
|
|
(
|
|
"xlsfile",
|
|
{"title": "Fichier Excel:", "input_type": "file", "size": 40},
|
|
),
|
|
("formsemestre_id", {"input_type": "hidden"}),
|
|
),
|
|
submitlabel="Télécharger",
|
|
)
|
|
if tf[0] == 0:
|
|
return "\n".join(H) + tf[1] + "</li></ol>" + help + F
|
|
elif tf[0] == -1:
|
|
return flask.redirect(back_url)
|
|
else:
|
|
# IMPORT
|
|
ok, diag, nb_created = sco_import_users.import_excel_file(tf[2]["xlsfile"])
|
|
H = [html_sco_header.sco_header(page_title="Import utilisateurs")]
|
|
H.append("<ul>")
|
|
for d in diag:
|
|
H.append("<li>%s</li>" % d)
|
|
H.append("</ul>")
|
|
if ok:
|
|
dest = url_for("users.index_html", scodoc_dept=g.scodoc_dept)
|
|
H.append("<p>Ok, Import terminé (%s utilisateurs créés)!</p>" % nb_created)
|
|
H.append('<p><a class="stdlink" href="%s">Continuer</a></p>' % dest)
|
|
else:
|
|
dest = url_for("users.import_users_form", scodoc_dept=g.scodoc_dept)
|
|
H.append("<p>Erreur, importation annulée !</p>")
|
|
H.append('<p><a class="stdlink" href="%s">Continuer</a></p>' % dest)
|
|
return "\n".join(H) + html_sco_header.sco_footer()
|
|
|
|
|
|
@bp.route("/user_info_page")
|
|
@scodoc
|
|
@permission_required(Permission.ScoUsersView)
|
|
@scodoc7func
|
|
def user_info_page(user_name):
|
|
return sco_users.user_info_page(user_name=user_name)
|
|
|
|
|
|
@bp.route("/get_user_list_xml")
|
|
@scodoc
|
|
@permission_required(Permission.ScoView)
|
|
@scodoc7func
|
|
def get_user_list_xml(dept=None, start="", limit=25, REQUEST=None):
|
|
"""Returns XML list of users with name (nomplogin) starting with start.
|
|
Used for forms auto-completion."""
|
|
userlist = sco_users.get_user_list(dept=dept)
|
|
start = scu.suppress_accents(start).lower()
|
|
# TODO : à refaire avec une requete SQL #py3
|
|
# (et en json)
|
|
userlist = [
|
|
user
|
|
for user in userlist
|
|
if scu.suppress_accents((user.nom or "").lower()).startswith(start)
|
|
]
|
|
if REQUEST:
|
|
REQUEST.RESPONSE.setHeader("content-type", scu.XML_MIMETYPE)
|
|
doc = ElementTree.Element("results")
|
|
for user in userlist[:limit]:
|
|
x_rs = ElementTree.Element("rs", id=str(user.id), info="")
|
|
x_rs.text = user.get_nomplogin()
|
|
doc.append(x_rs)
|
|
return sco_xml.XML_HEADER + ElementTree.tostring(doc).decode(scu.SCO_ENCODING)
|
|
|
|
|
|
@bp.route("/form_change_password")
|
|
@scodoc
|
|
@permission_required(Permission.ScoView)
|
|
@scodoc7func
|
|
def form_change_password(REQUEST, user_name=None):
|
|
"""Formulaire de changement mot de passe de l'utilisateur user_name.
|
|
Un utilisateur peut toujours changer son propre mot de passe.
|
|
"""
|
|
if not user_name:
|
|
u = current_user
|
|
else:
|
|
u = User.query.filter_by(user_name=user_name).first()
|
|
H = [html_sco_header.sco_header(user_check=False)]
|
|
F = html_sco_header.sco_footer()
|
|
# check access
|
|
if not can_handle_passwd(u):
|
|
return (
|
|
"\n".join(H)
|
|
+ "<p>Vous n'avez pas la permission de changer ce mot de passe</p>"
|
|
+ F
|
|
)
|
|
#
|
|
H.append(
|
|
"""<h2>Changement du mot de passe de <font color="red">%(nomplogin)s</font></h2>
|
|
<p>
|
|
<form action="change_password" method="post"><table>
|
|
<tr><td>Nouveau mot de passe:</td><td><input type="password" size="14" name="password"/></td></tr>
|
|
<tr><td>Confirmation: </td><td><input type="password" size="14" name="password2" /></td></tr>
|
|
</table>
|
|
<input type="hidden" value="%(user_name)s" name="user_name">
|
|
<input type="submit" value="Changer">
|
|
</p>
|
|
<p class="help">Note: en ScoDoc 9, les utilisateurs peuvent changer eux-même leur mot de passe
|
|
en indiquant l'adresse mail associée à leur compte.
|
|
</p>
|
|
"""
|
|
% {"nomplogin": u.get_nomplogin(), "user_name": user_name}
|
|
)
|
|
return "\n".join(H) + F
|
|
|
|
|
|
@bp.route("/change_password", methods=["POST"])
|
|
@scodoc
|
|
@permission_required(Permission.ScoView)
|
|
@scodoc7func
|
|
def change_password(user_name, password, password2, REQUEST):
|
|
"Change the password for user given by user_name"
|
|
u = User.query.filter_by(user_name=user_name).first()
|
|
# Check access permission
|
|
if not can_handle_passwd(u):
|
|
# access denied
|
|
log(
|
|
"change_password: access denied (authuser=%s, user_name=%s, ip=%s)"
|
|
% (REQUEST.AUTHENTICATED_USER, user_name, REQUEST.REMOTE_ADDR)
|
|
)
|
|
raise AccessDenied("vous n'avez pas la permission de changer ce mot de passe")
|
|
H = []
|
|
F = html_sco_header.sco_footer()
|
|
# check password
|
|
if password != password2:
|
|
H.append(
|
|
"""<p>Les deux mots de passes saisis sont différents !</p>
|
|
<p><a href="form_change_password?user_name=%s" class="stdlink">Recommencer</a></p>"""
|
|
% user_name
|
|
)
|
|
else:
|
|
if not sco_users.is_valid_password(password):
|
|
H.append(
|
|
"""<p><b>ce mot de passe n\'est pas assez compliqué !</b><br/>(oui, il faut un mot de passe vraiment compliqué !)</p>
|
|
<p><a href="form_change_password?user_name=%s" class="stdlink">Recommencer</a></p>
|
|
"""
|
|
% user_name
|
|
)
|
|
else:
|
|
# ok, strong password
|
|
db.session.add(u)
|
|
u.set_password(password)
|
|
db.session.commit()
|
|
#
|
|
# ici page simplifiee car on peut ne plus avoir
|
|
# le droit d'acceder aux feuilles de style
|
|
H.append(
|
|
"<h2>Changement effectué !</h2><p>Ne notez pas ce mot de passe, mais mémorisez le !</p><p>Rappel: il est <b>interdit</b> de communiquer son mot de passe à un tiers, même si c'est un collègue de confiance !</p><p><b>Si vous n'êtes pas administrateur, le système va vous redemander votre login et nouveau mot de passe au prochain accès.</b></p>"
|
|
)
|
|
return (
|
|
"""<?xml version="1.0" encoding="%s"?>
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html>
|
|
<head>
|
|
<title>Mot de passe changé</title>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=%s" />
|
|
<body><h1>Mot de passe changé !</h1>
|
|
"""
|
|
% (scu.SCO_ENCODING, scu.SCO_ENCODING)
|
|
+ "\n".join(H)
|
|
+ '<a href="%s" class="stdlink">Continuer</a></body></html>'
|
|
% scu.ScoURL()
|
|
)
|
|
return html_sco_header.sco_header() + "\n".join(H) + F
|
|
|
|
|
|
@bp.route("/toggle_active_user/<user_name>", methods=["GET", "POST"])
|
|
@scodoc
|
|
@permission_required(Permission.ScoUsersAdmin)
|
|
def toggle_active_user(user_name: str = None):
|
|
"""Change active status of a user account"""
|
|
u = User.query.filter_by(user_name=user_name).first()
|
|
if not u:
|
|
raise ScoValueError("invalid user_name")
|
|
form = DeactivateUserForm()
|
|
if (
|
|
request.method == "POST" and form.cancel.data
|
|
): # if cancel button is clicked, the form.cancel.data will be True
|
|
# flash
|
|
return redirect(url_for("users.index_html", scodoc_dept=g.scodoc_dept))
|
|
if form.validate_on_submit():
|
|
u.active = not u.active
|
|
db.session.add(u)
|
|
db.session.commit()
|
|
return redirect(url_for("users.index_html", scodoc_dept=g.scodoc_dept))
|
|
return render_template("auth/toogle_active_user.html", form=form, u=u)
|