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# 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
from collections import OrderedDict
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 = 0
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:
# TODO: le jour où la version minimale supportée sera
# Python 3.7, il sera possible de remplacer OrderedDict
# par un dictionnaire classique.
names = OrderedDict.fromkeys(data[i - 1].split(';'))
course.name = ", ".join(names.keys())
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
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