# -*- mode: python -*- # -*- coding: utf-8 -*- ############################################################################## # # Gestion scolarite IUT # # Copyright (c) 1999 - 2023 Emmanuel Viennet. All rights reserved. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # # Emmanuel Viennet emmanuel.viennet@viennet.net # ############################################################################## """Accès aux emplois du temps XXX usage uniquement experimental pour tests implémentations """ from datetime import timezone import re import icalendar from flask import flash, g, url_for from app import log from app.models import FormSemestre, GroupDescr, ModuleImpl, ScoDocSiteConfig from app.scodoc.sco_exceptions import ScoValueError import app.scodoc.sco_utils as scu def get_ics_filename(edt_id: str) -> str: "Le chemin vers l'ics de cet edt_id" edt_ics_path = ScoDocSiteConfig.get("edt_ics_path") if not edt_ics_path.strip(): return None return edt_ics_path.format(edt_id=edt_id) def formsemestre_load_calendar( formsemestre: FormSemestre = None, edt_id: str = None ) -> tuple[bytes, icalendar.cal.Calendar]: """Load ics data, return raw ics and decoded calendar. Raises ScoValueError if not configured or not available or invalid format. """ if edt_id is None and formsemestre: edt_id = formsemestre.get_edt_id() if not edt_id: raise ScoValueError( "accès aux emplois du temps non configuré pour ce semestre (pas d'edt_id)" ) ics_filename = get_ics_filename(edt_id) try: with open(ics_filename, "rb") as file: log(f"Loading edt from {ics_filename}") data = file.read() try: calendar = icalendar.Calendar.from_ical(data) except ValueError as exc: log( f"""formsemestre_load_calendar: error importing ics for { formsemestre or ''}\npath='{ics_filename}'""" ) raise ScoValueError( f"calendrier ics illisible (edt_id={edt_id})" ) from exc except FileNotFoundError as exc: log( f"formsemestre_load_calendar: ics not found for {formsemestre or ''}\npath='{ics_filename}'" ) raise ScoValueError( f"Fichier ics introuvable (filename={ics_filename})" ) from exc except PermissionError as exc: log( f"""formsemestre_load_calendar: permission denied for {formsemestre or '' }\npath='{ics_filename}'""" ) raise ScoValueError( f"Fichier ics inaccessible: vérifier permissions (filename={ics_filename})" ) from exc return data, calendar # --- Couleurs des évènements emploi du temps _COLOR_PALETTE = [ "#ff6961", "#ffb480", "#f8f38d", "#42d6a4", "#08cad1", "#59adf6", "#9d94ff", "#c780e8", ] _EVENT_DEFAULT_COLOR = "rgb(214, 233, 248)" def formsemestre_edt_dict(formsemestre: FormSemestre) -> list[dict]: """EDT complet du semestre, comme une liste de dict serialisable en json. Fonction appellée par l'API /formsemestre//edt TODO: spécifier intervalle de dates start et end """ try: events_scodoc = _load_and_convert_ics(formsemestre) except ScoValueError as exc: return exc.args[0] # Génération des événements pour le calendrier html events_cal = [] for event in events_scodoc: group: GroupDescr | bool = event["group"] if group is False: group_disp = f"""
{scu.EMO_WARNING} non configuré
""" else: group_disp = ( f"""
{group.get_nom_with_part(default="promo")}
""" if group else f"""
{event['edt_group']} {scu.EMO_WARNING} non reconnu
""" ) modimpl: ModuleImpl | bool = event["modimpl"] if modimpl is False: mod_disp = f"""
{scu.EMO_WARNING} non configuré
""" else: mod_disp = ( f"""
{ modimpl.module.code}
""" if modimpl else f"""
{ scu.EMO_WARNING} {event['edt_module']}
""" ) # --- Lien saisie abs link_abs = ( f"""""" if modimpl and group else "" ) d = { # Champs utilisés par tui.calendar "calendarId": "cal1", "title": event["title"] + group_disp + mod_disp + link_abs, "start": event["start"], "end": event["end"], "backgroundColor": event["group_bg_color"], # Infos brutes pour usage API éventuel "group_id": group.id if group else None, "group_edt_id": event["edt_group"], "moduleimpl_id": modimpl.id if modimpl else None, } events_cal.append(d) return events_cal def _load_and_convert_ics(formsemestre: FormSemestre) -> list[dict]: "chargement fichier, filtrage et extraction des identifiants." # Chargement du calendier ics _, calendar = formsemestre_load_calendar(formsemestre) if not calendar: return [] # --- Paramètres d'extraction edt_ics_title_field = ScoDocSiteConfig.get("edt_ics_title_field") edt_ics_title_regexp = ScoDocSiteConfig.get("edt_ics_title_regexp") try: edt_ics_title_pattern = ( re.compile(edt_ics_title_regexp) if edt_ics_title_regexp else None ) except re.error as exc: raise ScoValueError( "expression d'extraction du titre depuis l'emploi du temps invalide" ) from exc edt_ics_group_field = ScoDocSiteConfig.get("edt_ics_group_field") edt_ics_group_regexp = ScoDocSiteConfig.get("edt_ics_group_regexp") try: edt_ics_group_pattern = ( re.compile(edt_ics_group_regexp) if edt_ics_group_regexp else None ) except re.error as exc: raise ScoValueError( "expression d'extraction du groupe depuis l'emploi du temps invalide" ) from exc edt_ics_mod_field = ScoDocSiteConfig.get("edt_ics_mod_field") edt_ics_mod_regexp = ScoDocSiteConfig.get("edt_ics_mod_regexp") try: edt_ics_mod_pattern = ( re.compile(edt_ics_mod_regexp) if edt_ics_mod_regexp else None ) except re.error as exc: raise ScoValueError( "expression d'extraction du module depuis l'emploi du temps invalide" ) from exc # --- Correspondances id edt -> id scodoc pour groupes, modules et enseignants edt2group = formsemestre_retreive_groups_from_edt_id(formsemestre) group_colors = { group_name: _COLOR_PALETTE[i % (len(_COLOR_PALETTE) - 1) + 1] for i, group_name in enumerate(edt2group) } default_group = formsemestre.get_default_group() edt2modimpl = formsemestre_retreive_modimpls_from_edt_id(formsemestre) # --- events = [e for e in calendar.walk() if e.name == "VEVENT"] events_sco = [] for event in events: if "DESCRIPTION" in event: # --- Titre de l'évènement title = ( extract_event_data(event, edt_ics_title_field, edt_ics_title_pattern) if edt_ics_title_pattern else "non configuré" ) # --- Group if edt_ics_group_pattern: edt_group = extract_event_data( event, edt_ics_group_field, edt_ics_group_pattern ) # si pas de groupe dans l'event, ou si groupe non reconnu, # prend toute la promo ("tous") group: GroupDescr = ( edt2group.get(edt_group, default_group) if edt_group else default_group ) group_bg_color = ( group_colors.get(edt_group, _EVENT_DEFAULT_COLOR) if group else "lightgrey" ) else: edt_group = "" group = False group_bg_color = _EVENT_DEFAULT_COLOR # --- ModuleImpl if edt_ics_mod_pattern: edt_module = extract_event_data( event, edt_ics_mod_field, edt_ics_mod_pattern ) modimpl: ModuleImpl = edt2modimpl.get(edt_module, None) else: modimpl = False edt_module = "" # --- TODO: enseignant # events_sco.append( { "title": title, "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 # heures pour saisie abs: en heure LOCALE DU SERVEUR "heure_deb": event.decoded("dtstart") .replace(tzinfo=timezone.utc) .astimezone(tz=None) .strftime("%H:%M"), "heure_fin": event.decoded("dtend") .replace(tzinfo=timezone.utc) .astimezone(tz=None) .strftime("%H:%M"), "jour": event.decoded("dtstart").isoformat(), "start": event.decoded("dtstart").isoformat(), "end": event.decoded("dtend").isoformat(), } ) return events_sco def extract_event_data( event: icalendar.cal.Event, ics_field: str, pattern: re.Pattern ) -> str: """Extrait la chaine (id) de l'évènement.""" 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 m.group(1) # fallback: ics field, complete return data # def extract_event_title(event: icalendar.cal.Event) -> str: # """Extrait le titre à afficher dans nos calendriers. # En effet, le titre présent dans l'ics emploi du temps est souvent complexe et peu parlant. # Par exemple, à l'USPN, Hyperplanning nous donne: # 'Matière : VRETR113 - Mathematiques du sig (VRETR113\nEnseignant : 1234 - M. DUPONT PIERRE\nTD : TDB\nSalle : L112 (IUTV) - L112\n' # """ # # TODO: fonction ajustée à l'USPN, devra être paramétrable d'une façon ou d'une autre: regexp ? # if not event.has_key("DESCRIPTION"): # return "-" # description = event.decoded("DESCRIPTION").decode("utf-8") # assume ics in utf8 # # ici on prend le nom du module # m = re.search(r"Matière : \w+ - ([\w\.\s']+)", description) # if m and len(m.groups()) > 0: # return m.group(1) # # fallback: full description # return description # def extract_event_module(event: icalendar.cal.Event) -> str: # """Extrait le code module de l'emplois du temps. # Chaine vide si ne le trouve pas. # Par exemple, à l'USPN, Hyperplanning nous donne le code 'VRETR113' dans DESCRIPTION # 'Matière : VRETR113 - Mathematiques du sig (VRETR113\nEnseignant : 1234 - M. DUPONT PIERRE\nTD : TDB\nSalle : L112 (IUTV) - L112\n' # """ # # TODO: fonction ajustée à l'USPN, devra être paramétrable d'une façon ou d'une autre: regexp ? # if not event.has_key("DESCRIPTION"): # return "-" # description = event.decoded("DESCRIPTION").decode("utf-8") # assume ics in utf8 # # extraction du code: # m = re.search(r"Matière : ([A-Z][A-Z0-9]+)", description) # if m and len(m.groups()) > 0: # return m.group(1) # return "" # def extract_event_group(event: icalendar.cal.Event) -> str: # """Extrait le nom du groupe (TD, ...). "" si pas de match.""" # # Utilise ici le SUMMARY # # qui est de la forme # # SUMMARY;LANGUAGE=fr:TP2 GPR1 - VCYR303 - Services reseaux ava (VCYR303) - 1234 - M. VIENNET EMMANUEL - V2ROM - BUT2 RT pa. ROM - Groupe 1 # if not event.has_key("SUMMARY"): # return "-" # summary = event.decoded("SUMMARY").decode("utf-8") # assume ics in utf8 # # extraction du code: # m = re.search(r".*- ([\w\s]+)$", summary) # if m and len(m.groups()) > 0: # return m.group(1).strip() # return "" def formsemestre_retreive_modimpls_from_edt_id( formsemestre: FormSemestre, ) -> dict[str, ModuleImpl]: """Construit un dict donnant le moduleimpl de chaque edt_id""" edt2modimpl = {modimpl.get_edt_id(): modimpl for modimpl in formsemestre.modimpls} edt2modimpl.pop("", None) return edt2modimpl def formsemestre_retreive_groups_from_edt_id( formsemestre: FormSemestre, ) -> dict[str, GroupDescr]: """Construit un dict donnant le groupe de chaque edt_id""" edt2group = {} for partition in formsemestre.partitions: edt2group.update({g.get_edt_id(): g for g in partition.groups}) edt2group.pop("", None) return edt2group