diff options
Diffstat (limited to 'management/parsers/ups2018.py')
| -rw-r--r-- | management/parsers/ups2018.py | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/management/parsers/ups2018.py b/management/parsers/ups2018.py new file mode 100644 index 0000000..8d97517 --- /dev/null +++ b/management/parsers/ups2018.py @@ -0,0 +1,213 @@ +# Copyright (C) 2018 Alban Gruin +# +# celcatsanitizer is free software: you can redistribute it and/or modify +# it under the terms of the GNU Affero General Public License as published +# by the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# celcatsanitizer 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 Affero General Public License for more details. +# +# You should have received a copy of the GNU Affero General Public License +# along with celcatsanitizer. If not, see <http://www.gnu.org/licenses/>. + +from datetime import datetime, timedelta + +import asyncio +import calendar +import json + +from django.utils import timezone + +import lxml.html +import requests + +from ...models import Course, Group, Room +from ...utils import get_current_week, get_week +from .abstractparser import AbstractParser + +VARNAME = "v.events.list = " + + +def find_events_list(soup): + res = [] + for script in soup.xpath("//script/text()"): + if VARNAME in script: + for var in script.split('\n'): + if var.startswith(VARNAME): + res = json.loads(var[len(VARNAME):-2]) + + return res + + +def get_next_month(dt): + n = dt.replace(day=1) + timedelta(days=32) + return n.replace(day=1) + + +class Parser(AbstractParser): + def __init__(self, source): + super(Parser, self).__init__(source) + + # En-tête tiré de mon Firefox… + base_req = self._make_request( + source.url, headers={"Accept-Language": "en-US,en;q=0.5"} + ) + + parser = lxml.html.HTMLParser(encoding="utf-8") + self.soup = lxml.html.document_fromstring( + base_req.content, parser=parser + ) + + self.months = [] + for option in self.soup.xpath("//option"): + if option.get("selected") is not None or len(self.months) > 0: + self.months.append(option.text) + + def __get_event(self, event, today, + beginning_of_month, end_of_month, + year, week): + begin = timezone.make_aware( + datetime.strptime(event["start"], "%Y-%m-%dT%H:%M:%S") + ) + end = timezone.make_aware( + datetime.strptime(event["end"], "%Y-%m-%dT%H:%M:%S") + ) + + if begin < beginning_of_month or begin >= end_of_month or \ + (today is not None and begin < today): + return + + if year is not None and week is not None: + event_year, event_week, _ = begin.isocalendar() + if event_year != year or event_week != week: + return + + course = Course.objects.create( + source=self.source, begin=begin, end=end + ) + + data = event["text"].split("<br>") + rooms = None + if data[0] == "Global Event": + return + + i = 1 + while i < len(data) and not data[i].startswith( + ("L1 ", "L2 ", "L3 ", "L3P ", "M1 ", "M2 ", "DEUST ", "MAG1 ", + "1ERE ANNEE ", "2EME ANNEE ", "3EME ANNEE ", + "MAT-Agreg Interne ") + ): + i += 1 + + groups = data[i] + if i - 1 > 0: + course.name = ", ".join(set(data[i - 1].split(';'))) + else: + course.name = "Sans nom" + if i - 2 > 0: + course.type = data[i - 2] + if len(data) >= i + 2: + rooms = data[i + 1] + if len(data) >= i + 3: + course.notes = data[i + 2] + + groups = [ + Group.objects.get_or_create( + source=self.source, celcat_name=name + )[0] + for name in groups.split(';') + ] + course.groups.add(*groups) + + if rooms is not None: + rooms_objs = Room.objects.filter(name__in=rooms.split(';')) + if rooms_objs.count() > 0: + course.rooms.add(*rooms_objs) + elif course.notes: + course.notes = "{0}\n{1}".format(rooms, course.notes) + else: + course.notes = rooms + + if course.notes is not None: + course.notes = course.notes.strip() + + return course + + def get_events(self, today, year=None, week=None): + for i, month in enumerate(self.events): + beginning_of_month = timezone.make_aware( + datetime.strptime(self.months[i], "%B, %Y") + ) + end_of_month = get_next_month(beginning_of_month) + + for event in month: + course = self.__get_event(event, today, + beginning_of_month, end_of_month, + year, week) + if course is not None: + yield course + + def get_update_date(self): + return None # Pas de date de mise à jour dans ce format + + def get_weeks(self): + # FIXME: détection automatique à partir des événements présents + beginning, _ = get_week(*get_current_week()) + self.weeks = {"1": beginning} + + return self.weeks + + def ajax_req(self, month): + month = datetime.strptime(month, "%B, %Y") + first_monday = min( + week[calendar.MONDAY] + for week in calendar.monthcalendar(month.year, month.month) + if week[calendar.MONDAY] > 0 + ) + month_str = month.replace(day=first_monday).strftime("%Y%m%d") + + req = self._make_request( + self.source.url, + headers={ + "Accept-Language": "en-US,en;q=0.5", + }, + params={"Date": month_str}, + ) + req.raise_for_status() + + parser = lxml.html.HTMLParser(encoding="utf8") + soup = lxml.html.document_fromstring(req.content, parser=parser) + + return find_events_list(soup) + + @asyncio.coroutine + def get_months_async(self): + loop = asyncio.get_event_loop() + futures = [] + + for month in self.months[1:]: + futures.append(loop.run_in_executor(None, self.ajax_req, month)) + + responses = yield from asyncio.gather(*futures) + return responses + + def get_source_from_months(self, async=True): + events = [] + + if async: + loop = asyncio.get_event_loop() + events = loop.run_until_complete(self.get_months_async()) + else: + for month in self.months[1:]: + events.append(self.ajax_req(month)) + + return events + + def get_source(self): + self.events = [ + find_events_list(self.soup) + ] + self.get_source_from_months() + return self.events |