560 lines
21 KiB
Python
560 lines
21 KiB
Python
# -*- mode: python -*-
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# -*- coding: utf-8 -*-
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##############################################################################
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#
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# Gestion scolarite IUT
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#
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# Copyright (c) 1999 - 2024 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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"""Accès aux emplois du temps
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Lecture et conversion des ics.
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"""
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from datetime import timezone
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import glob
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import os
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import re
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import time
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import icalendar
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from flask import g, url_for
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from app import log
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from app.auth.models import User
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from app.models import FormSemestre, GroupDescr, ModuleImpl, ScoDocSiteConfig
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from app.scodoc.sco_exceptions import ScoValueError
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import app.scodoc.sco_utils as scu
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def get_ics_filename(edt_id: str) -> str | None:
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"Le chemin vers l'ics de cet edt_id"
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edt_ics_path = ScoDocSiteConfig.get("edt_ics_path")
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if not edt_ics_path.strip():
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return None
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return edt_ics_path.format(edt_id=edt_id)
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def get_ics_directory() -> str | None:
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"Le répertoire contenant les ics: prend le parent de edt_ics_path"
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edt_ics_path = ScoDocSiteConfig.get("edt_ics_path")
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if not edt_ics_path.strip():
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return None
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return os.path.split(edt_ics_path)[0]
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def get_ics_user_edt_filename(edt_id) -> str | None:
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"""Le chemin vers le fichier ics de l'emploi du temps de l'utilisateur,
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ou None.
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edt_id est l'edt_id de l'utilisateur
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"""
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if not edt_id:
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return None
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edt_ics_user_path = ScoDocSiteConfig.get("edt_ics_user_path")
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if not edt_ics_user_path.strip():
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return None
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return edt_ics_user_path.format(edt_id=edt_id)
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def list_edt_calendars() -> list[str]:
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"""Liste des chemins complets vers tous les ics des calendriers de semestres"""
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path = get_ics_directory()
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return glob.glob(path + "/*.ics") if path else []
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def is_edt_configured() -> bool:
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"True si accès EDT configuré"
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return bool(ScoDocSiteConfig.get("edt_ics_path"))
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def formsemestre_load_calendar(
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formsemestre: FormSemestre = None, edt_id: str = None
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) -> tuple[bytes, icalendar.cal.Calendar]:
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"""Load ics data, return raw ics and decoded calendar.
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Raises ScoValueError if not configured or not available or invalid format.
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"""
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edt_ids = []
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if edt_id is None:
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if formsemestre:
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edt_ids = formsemestre.get_edt_ids()
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else:
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edt_ids = [edt_id]
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if not edt_ids:
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raise ScoValueError(
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"accès aux emplois du temps non configuré pour ce semestre (pas d'edt_id)"
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)
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# Ne charge qu'un seul ics pour le semestre, prend uniquement
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# le premier edt_id
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ics_filename = get_ics_filename(edt_ids[0])
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return load_calendar(ics_filename, formsemestre=formsemestre, edt_id=edt_id)
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def load_calendar(
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ics_filename: str, formsemestre: FormSemestre | None = None, edt_id: str = None
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) -> tuple[bytes, icalendar.cal.Calendar]:
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"""Load ics from given (full) path. Return raw ics and decoded calendar.
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formsemestre and edt_id are optionaly used for error messages.
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May raise ScoValueError.
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"""
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if ics_filename is None:
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raise ScoValueError("accès aux emplois du temps non configuré (pas de chemin)")
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try:
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with open(ics_filename, "rb") as file:
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log(f"Loading edt from {ics_filename}")
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data = file.read()
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try:
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calendar = icalendar.Calendar.from_ical(data)
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except ValueError as exc:
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log(
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f"""formsemestre_load_calendar: error importing ics for {
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formsemestre or ''}\npath='{ics_filename}'"""
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)
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raise ScoValueError(
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f"calendrier ics illisible (edt_id={edt_id})"
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) from exc
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except FileNotFoundError as exc:
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log(
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f"""formsemestre_load_calendar: ics not found for {
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formsemestre or ''}\npath='{ics_filename}'"""
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)
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raise ScoValueError(
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f"Fichier ics introuvable (filename={ics_filename})"
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) from exc
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except PermissionError as exc:
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log(
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f"""formsemestre_load_calendar: permission denied for {formsemestre or ''
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}\npath='{ics_filename}'"""
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)
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raise ScoValueError(
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f"Fichier ics inaccessible: vérifier permissions (filename={ics_filename})"
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) from exc
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return data, calendar
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# --- Couleurs des évènements emploi du temps
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_COLOR_PALETTE = [
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"#ff6961",
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"#ffb480",
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"#f8f38d",
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"#42d6a4",
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"#08cad1",
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"#59adf6",
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"#9d94ff",
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"#c780e8",
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]
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_EVENT_DEFAULT_COLOR = "rgb(214, 233, 248)"
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def formsemestre_edt_dict(
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formsemestre: FormSemestre,
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group_ids: list[int] = None,
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show_modules_titles=True,
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) -> list[dict]:
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"""EDT complet du semestre, comme une liste de dict serialisable en json.
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Fonction appelée par l'API /formsemestre/<int:formsemestre_id>/edt
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group_ids indiquer les groupes ScoDoc à afficher (les autres sont filtrés).
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Les évènements pour lesquels le groupe ScoDoc n'est pas reconnu sont
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toujours présents.
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TODO: spécifier intervalle de dates start et end
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"""
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t0 = time.time()
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try:
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events_scodoc, _ = load_and_convert_ics(formsemestre)
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except ScoValueError as exc:
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return exc.args[0]
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edt_dict = translate_calendar(
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events_scodoc, group_ids, show_modules_titles=show_modules_titles
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)
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log(
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f"formsemestre_edt_dict: loaded edt for {formsemestre} in {(time.time()-t0):g}s"
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)
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return edt_dict
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def translate_calendar(
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events_scodoc: list[dict],
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group_ids: list[int] = None,
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show_modules_titles=True,
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) -> list[dict]:
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"""Génération des événements pour le calendrier html"""
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group_ids_set = set(group_ids) if group_ids else set()
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promo_icon = f"""<img height="18px" src="{scu.STATIC_DIR}/icons/promo.svg"
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title="promotion complète" alt="promotion"/>"""
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abs_icon = f"""<img height="28px" src="{scu.STATIC_DIR}/icons/absences.svg"
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title="saisir absences" alt="saisir absences"/>"""
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events_cal = []
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for event in events_scodoc:
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group: GroupDescr | bool = event["group"]
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if group is False:
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group_disp = f"""<div class="group-edt">
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<span title="extraction emploi du temps non configurée">
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{scu.EMO_WARNING} non configuré</span>
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</div>"""
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else:
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group_disp = (
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f"""<div class="group-name">{group.get_nom_with_part(default=promo_icon)}</div>"""
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if group
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else f"""<div class="group-edt">{event['edt_group']}
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<span title="vérifier noms de groupe ou configuration extraction edt">
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{scu.EMO_WARNING} non reconnu</span>
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</div>"""
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)
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if group and group_ids_set and group.id not in group_ids_set:
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continue # ignore cet évènement
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modimpl: ModuleImpl | bool = event["modimpl"]
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url_abs = (
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url_for(
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"assiduites.signal_assiduites_group",
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scodoc_dept=g.scodoc_dept,
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group_ids=group.id,
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heure_deb=event["heure_deb"],
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heure_fin=event["heure_fin"],
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moduleimpl_id=modimpl.id,
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jour=event["jour"],
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)
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if modimpl and group
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else None
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)
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match modimpl:
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case False: # EDT non configuré
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mod_disp = f"""<span>{scu.EMO_WARNING} non configuré</span>"""
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bubble = "extraction emploi du temps non configurée"
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case None: # Module edt non trouvé dans ScoDoc
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mod_disp = f"""<span class="mod-etd">{
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scu.EMO_WARNING} {event['edt_module']}</span>"""
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bubble = "code module non trouvé dans ce semestre ScoDoc. Vérifier configuration."
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case _: # module EDT bien retrouvé dans ScoDoc
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bubble = f"""{modimpl.module.abbrev or modimpl.module.titre or ''
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} ({event['edt_module']})"""
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mod_disp = (
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f"""<span class="mod-name mod-code">{modimpl.module.code}</span>"""
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)
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span_title = f" <span>{event['title']}</span>" if show_modules_titles else ""
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title = f"""<div class = "module-edt" title="{bubble}">
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<a class="discretelink" href="{url_abs or ''}">{mod_disp}{span_title}</a>
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</div>
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"""
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# --- Lien saisie abs
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link_abs = (
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f"""<div class="module-edt link-abs"><a class="stdlink" href="{
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url_abs}">{abs_icon}</a>
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</div>"""
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if url_abs
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else ""
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)
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if event["users"]:
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# enseignants reconnus dans l'evènement EDT
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ens_nomprenoms = f"""<span class="edt-ens">({
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", ".join([u.get_nomprenom() for u in event["users"]])
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})</span>"""
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else:
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ens_nomprenoms = f"""<span class="ens-non-reconnu"
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title="enseignants edt: {', '.join(event['edt_ens_ids'])
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if event["edt_ens_ids"] else '?'
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}">(ens. ?)</span>"""
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ens_user_names = (
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",".join([u.user_name for u in event["users"]]) if event["users"] else ""
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)
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d = {
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# Champs utilisés par tui.calendar
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"calendarId": "cal1",
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"title": f"""{title} {group_disp} {ens_nomprenoms} {link_abs}""",
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"start": event["start"],
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"end": event["end"],
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"backgroundColor": event["group_bg_color"],
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"raw": event["raw"],
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# Infos brutes pour usage API éventuel
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"edt_ens_ids": event["edt_ens_ids"],
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"ens_user_names": ens_user_names,
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"group_id": group.id if group else None,
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"group_edt_id": event["edt_group"],
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"moduleimpl_id": modimpl.id if modimpl else None,
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"UID": event["UID"], # icalendar event UID
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}
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events_cal.append(d)
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return events_cal
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def get_ics_uid_pattern() -> re.Pattern:
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"""L'expression régulière compilée pour extraire l'identifiant de l'enseignant.
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May raise ScoValueError.
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"""
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edt_ics_uid_regexp = ScoDocSiteConfig.get("edt_ics_uid_regexp")
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try:
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edt_ics_uid_pattern = (
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re.compile(edt_ics_uid_regexp) if edt_ics_uid_regexp else None
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)
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except re.error as exc:
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raise ScoValueError(
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"expression d'extraction de l'enseignant depuis l'emploi du temps invalide"
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) from exc
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return edt_ics_uid_pattern
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def load_and_convert_ics(formsemestre: FormSemestre) -> tuple[list[dict], list[str]]:
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"""Chargement fichier ics.
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Renvoie une liste d'évènements, et la liste des identifiants de groupes
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trouvés (utilisée pour l'aide).
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"""
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# Chargement du calendier ics
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_, calendar = formsemestre_load_calendar(formsemestre)
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if not calendar:
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return [], []
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# --- Correspondances id edt -> id scodoc pour groupes
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edt2group = formsemestre_retreive_groups_from_edt_id(formsemestre)
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default_group = formsemestre.get_default_group()
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# --- Correspondances id edt -> id scodoc pour modimpls
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edt2modimpl = formsemestre_retreive_modimpls_from_edt_id(formsemestre)
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return convert_ics(
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calendar,
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edt2group=edt2group,
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default_group=default_group,
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edt2modimpl=edt2modimpl,
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)
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def convert_ics(
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calendar: icalendar.cal.Calendar,
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edt2group: dict[str, GroupDescr] = None,
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default_group: GroupDescr = None,
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edt2modimpl: dict[str, ModuleImpl] = None,
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) -> tuple[list[dict], list[str]]:
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"""Filtrage et extraction des identifiants des évènements calendrier.
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Renvoie une liste d'évènements, et la liste des identifiants de groupes
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trouvés (utilisée pour l'aide).
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Groupes:
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- False si extraction regexp non configuré
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- "tous" (promo) si pas de correspondance trouvée.
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"""
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# --- Paramètres d'extraction
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edt_ics_title_field = ScoDocSiteConfig.get("edt_ics_title_field")
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edt_ics_title_regexp = ScoDocSiteConfig.get("edt_ics_title_regexp")
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try:
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edt_ics_title_pattern = (
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re.compile(edt_ics_title_regexp) if edt_ics_title_regexp else None
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)
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except re.error as exc:
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raise ScoValueError(
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"expression d'extraction du titre depuis l'emploi du temps invalide"
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) from exc
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edt_ics_group_field = ScoDocSiteConfig.get("edt_ics_group_field")
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edt_ics_group_regexp = ScoDocSiteConfig.get("edt_ics_group_regexp")
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try:
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edt_ics_group_pattern = (
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re.compile(edt_ics_group_regexp) if edt_ics_group_regexp else None
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)
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except re.error as exc:
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raise ScoValueError(
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"expression d'extraction du groupe depuis l'emploi du temps invalide"
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) from exc
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edt_ics_mod_field = ScoDocSiteConfig.get("edt_ics_mod_field")
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edt_ics_mod_regexp = ScoDocSiteConfig.get("edt_ics_mod_regexp")
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try:
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edt_ics_mod_pattern = (
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re.compile(edt_ics_mod_regexp) if edt_ics_mod_regexp else None
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)
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except re.error as exc:
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raise ScoValueError(
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"expression d'extraction du module depuis l'emploi du temps invalide"
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) from exc
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edt_ics_uid_field = ScoDocSiteConfig.get("edt_ics_uid_field")
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edt_ics_uid_pattern = get_ics_uid_pattern()
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# --- Groupes
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group_colors = {
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group_name: _COLOR_PALETTE[i % (len(_COLOR_PALETTE) - 1) + 1]
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for i, group_name in enumerate(edt2group)
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}
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edt_groups_ids = set() # les ids de groupes normalisés tels que dans l'ics
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edt2user: dict[str, User | None] = {} # construit au fur et à mesure (cache)
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# ---
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events = [e for e in calendar.walk() if e.name == "VEVENT"]
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events_sco = []
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for event in events:
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if "DESCRIPTION" in event:
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# --- Titre de l'évènement
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title_edt = (
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extract_event_edt_id(event, edt_ics_title_field, edt_ics_title_pattern)
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if edt_ics_title_pattern
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else "non configuré"
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)
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# title remplacé par le nom du module scodoc quand il est trouvé
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title = title_edt
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# --- ModuleImpl
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if edt_ics_mod_pattern:
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edt_module = extract_event_edt_id(
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event, edt_ics_mod_field, edt_ics_mod_pattern
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)
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modimpl: ModuleImpl = edt2modimpl.get(edt_module, None)
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if modimpl:
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title = modimpl.module.titre_str()
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else:
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modimpl = False
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edt_module = ""
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# --- Group
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if edt_ics_group_pattern:
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edt_group = extract_event_edt_id(
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event, edt_ics_group_field, edt_ics_group_pattern
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)
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edt_groups_ids.add(edt_group)
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# si pas de groupe dans l'event, ou si groupe non reconnu,
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# prend toute la promo ("tous")
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event_default_group = (
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default_group
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if default_group
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else (modimpl.formsemestre.get_default_group() if modimpl else None)
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)
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group: GroupDescr = (
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edt2group.get(edt_group, event_default_group)
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if edt_group
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else event_default_group
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)
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group_bg_color = (
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group_colors.get(edt_group, _EVENT_DEFAULT_COLOR)
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if group
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else "lightgrey"
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)
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else:
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edt_group = ""
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group = False
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group_bg_color = _EVENT_DEFAULT_COLOR
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# --- Enseignants
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users: list[User] = []
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if edt_ics_uid_pattern:
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ens_edt_ids = extract_event_edt_ids(
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event, edt_ics_uid_field, edt_ics_uid_pattern
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)
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for ens_edt_id in ens_edt_ids:
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if ens_edt_id in edt2user:
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ens = edt2user[ens_edt_id]
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|
else:
|
|
ens = User.query.filter_by(edt_id=ens_edt_id).first()
|
|
edt2user[ens_edt_id] = ens
|
|
if ens:
|
|
users.append(ens)
|
|
else:
|
|
ens_edt_ids = []
|
|
#
|
|
events_sco.append(
|
|
{
|
|
"title": title, # titre event ou nom module
|
|
"title_edt": title_edt, # titre event
|
|
"edt_group": edt_group, # id group edt non traduit
|
|
"group": group, # False si extracteur non configuré
|
|
"group_bg_color": group_bg_color, # associée au groupe
|
|
"modimpl": modimpl, # False si extracteur non configuré
|
|
"edt_module": edt_module, # id module edt non traduit
|
|
# Enseignant
|
|
"edt_ens_ids": ens_edt_ids, # ids ens edt, normalisés mais non traduits
|
|
"users": users,
|
|
# heures pour saisie abs: en heure LOCALE DU SERVEUR
|
|
"heure_deb": event.decoded("dtstart")
|
|
.replace(tzinfo=timezone.utc)
|
|
.astimezone(tz=None)
|
|
.strftime(scu.TIME_FMT),
|
|
"heure_fin": event.decoded("dtend")
|
|
.replace(tzinfo=timezone.utc)
|
|
.astimezone(tz=None)
|
|
.strftime(scu.TIME_FMT),
|
|
"jour": event.decoded("dtstart").date().isoformat(),
|
|
"start": event.decoded("dtstart").isoformat(),
|
|
"end": event.decoded("dtend").isoformat(),
|
|
"UID": event.decoded("UID").decode("utf-8"),
|
|
"raw": event.to_ical().decode("utf-8"),
|
|
}
|
|
)
|
|
return events_sco, sorted(edt_groups_ids)
|
|
|
|
|
|
def extract_event_edt_id(
|
|
event: icalendar.cal.Event,
|
|
ics_field: str,
|
|
pattern: re.Pattern,
|
|
none_if_no_match=False,
|
|
) -> str | None:
|
|
"""Extrait la chaine (id) de l'évènement et la normalise.
|
|
Si l'event n'a pas le champ: "-"
|
|
Si pas de match: None
|
|
"""
|
|
if not event.has_key(ics_field):
|
|
return "-"
|
|
data = event.decoded(ics_field).decode("utf-8") # assume ics in utf8
|
|
m = pattern.search(data)
|
|
if m and len(m.groups()) > 0:
|
|
return scu.normalize_edt_id(m.group(1))
|
|
# fallback: if not none_if_no_match, ics field complete
|
|
return None if none_if_no_match else data
|
|
|
|
|
|
def extract_event_edt_ids(
|
|
event: icalendar.cal.Event,
|
|
ics_field: str,
|
|
pattern: re.Pattern,
|
|
) -> list[str] | None:
|
|
"""Extrait les edt_id de l'évènement et les normalise.
|
|
Si l'event n'a pas le champ: None
|
|
Si pas de match: liste vide
|
|
Utilisé pour les enseignants uniquement.
|
|
"""
|
|
if not event.has_key(ics_field):
|
|
return
|
|
data = event.decoded(ics_field).decode("utf-8") # assume ics in utf8
|
|
matches = pattern.findall(data)
|
|
# nota: pattern may have zero or one group, so the result
|
|
# is a list of strings, not a list of matches
|
|
return [scu.normalize_edt_id(m) for m in matches if m]
|
|
|
|
|
|
def formsemestre_retreive_modimpls_from_edt_id(
|
|
formsemestre: FormSemestre,
|
|
) -> dict[str, ModuleImpl]:
|
|
"""Construit un dict donnant le moduleimpl de chaque edt_id (normalisé)"""
|
|
edt2modimpl = {}
|
|
for modimpl in formsemestre.modimpls:
|
|
for edt_id in modimpl.get_edt_ids():
|
|
if edt_id:
|
|
edt2modimpl[edt_id] = modimpl
|
|
return edt2modimpl
|
|
|
|
|
|
def formsemestre_retreive_groups_from_edt_id(
|
|
formsemestre: FormSemestre,
|
|
) -> dict[str, GroupDescr]:
|
|
"""Construit un dict donnant le groupe de chaque edt_id
|
|
La clé edt_id est sans accents, lowercase.
|
|
"""
|
|
edt2group = {}
|
|
group: GroupDescr
|
|
for partition in formsemestre.partitions:
|
|
for group in partition.groups:
|
|
for edt_id in group.get_edt_ids():
|
|
edt2group[edt_id] = group
|
|
return edt2group
|