/
professorcalendar.py
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/
professorcalendar.py
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# -*- coding: utf-8 -*-
__author__ = 'sevas'
import os
import urlparse
import logging
from google.appengine.ext import webapp
from google.appengine.ext.webapp import template
from google.appengine.api.urlfetch import DownloadError
from status import is_status_down, get_last_status_update
from utils import render_deadline_exceeded_page
from geholwrapper import get_professor_q1_calendar, get_professor_q2_calendar, get_professor_january_calendar, get_professor_sept_calendar, get_professor_june_calendar, get_professor_calendar
from geholwrapper import convert_professor_calendar_to_ical_string, make_professor_gehol_url
from gehol.utils import convert_weekspan_to_dates
import conf
import version
def is_staff_member_id_valid(staff_member_id):
return staff_member_id.isalnum()
class ExamSessionInfo(object):
def __init__(self, session_name, ical_url, ical_url_title, weekspan_string, info_found):
self.session_name = session_name
self.ical_url = ical_url
self.ical_url_title = ical_url_title
self.readable_weekspan_string = weekspan_string
self.info_found = info_found
def render_professor_notfound_page(request_handler, resource_type):
template_values = {'gehol_is_down': is_status_down(),
'last_status_update': get_last_status_update(),
'resource_type':resource_type,
'version':version.VERSION
}
path = os.path.join(os.path.dirname(__file__), 'templates/professor_notfound.html')
request_handler.response.out.write(template.render(path, template_values))
def render_gehol_down(renderer, reason):
template_values = {'gehol_is_down': True,
'last_status_update': get_last_status_update(),
'request':reason,
'version':version.VERSION
}
path = os.path.join(os.path.dirname(__file__), 'templates/gehol_down.html')
renderer.response.out.write(template.render(path, template_values))
class ProfessorSummary(webapp.RequestHandler):
def get(self):
parsed = urlparse.urlparse(self.request.uri)
staff_member_id = parsed.path.split("/")[2]
if is_status_down():
render_gehol_down(self, "You asked the schedule for a particular student profile.")
else:
if is_staff_member_id_valid(staff_member_id):
logging.debug("staff member '%s' id is valid" % staff_member_id)
try:
cal = get_professor_q1_calendar(staff_member_id)
except DownloadError,e:
logging.error("Could not fetch page before deadline")
render_deadline_exceeded_page(self)
return
if cal:
self._render_calendar_summary(cal, staff_member_id)
else:
logging.debug("did not receive a calendar")
self._render_not_found_page()
else:
logging.debug("staff member id '%s' is not valid" % staff_member_id)
self._render_not_found_page()
def _render_calendar_summary(self, cal, staff_member_id):
logging.info("got a calendar from staff member id: %s" % staff_member_id)
professor_name = cal.header_data['teacher_name']
ical_urls = ["/staff/ical/%s/%s.ics" % (q, staff_member_id) for q in ("q1", "q2")]
ical_url_titles = ["ULB - %s - %s" % (q, professor_name) for q in ("Q1", "Q2")]
q1_span = convert_weekspan_to_dates(conf.Q1_WEEKSPAN, conf.FIRST_MONDAY)
q2_span = convert_weekspan_to_dates(conf.Q2_WEEKSPAN, conf.FIRST_MONDAY)
template_values = {'gehol_is_down': is_status_down(),
'last_status_update': get_last_status_update(),
'version':version.VERSION,
'gehol_url':make_professor_gehol_url(staff_member_id, conf.Q2_WEEKSPAN),
'professor_name':professor_name,
'ical_q1_url':ical_urls[0],
'ical_q2_url':ical_urls[1],
'ical_q1_url_title':ical_url_titles[0],
'ical_q2_url_title':ical_url_titles[1],
'q1_span': "from %s to %s" %
tuple([q1_span[i].strftime("%B %d, %Y") for i in (0, 1)]),
'q2_span': "from %s to %s" %
tuple([q2_span[i].strftime("%B %d, %Y") for i in (0, 1)]),
}
current_session_name = conf.CURRENT_EXAM_SESSION
exam_session = None
if current_session_name:
exam_session = self._extract_current_session_info(current_session_name, staff_member_id)
template_values['exam_session'] = exam_session
#self._save_successful_request(professor_name, "/staff/%s" % staff_member_id)
path = os.path.join(os.path.dirname(__file__), 'templates/staff.html')
self.response.out.write(template.render(path, template_values))
def _extract_current_session_info(self, session_name, staff_member_id):
weekspan = conf.EXAM_SESSION_WEEKSPANS[session_name]
session_weekspan = convert_weekspan_to_dates(weekspan, conf.FIRST_MONDAY)
ical_url, title = self._make_exam_session_url_and_title(staff_member_id, session_name)
exam_session = ExamSessionInfo(session_name, ical_url, title,
"from %s to %s" % tuple([session_weekspan[i].strftime("%B %d, %Y") for i in (0, 1)]),
self._is_exam_session_available(staff_member_id, weekspan)
)
return exam_session
@staticmethod
def _make_exam_session_url_and_title(staff_member_id, session_name):
return (conf.WEBCAL_BASE_URL % "/staff/ical/%s_exams/%s.ics" % (session_name, staff_member_id),
"ULB - %s exams session - %s" % (session_name.capitalize(), staff_member_id))
def _is_exam_session_available(self, staff_member_id, weekspan):
cal = get_professor_calendar(staff_member_id, weekspan)
return cal.has_events()
def _render_not_found_page(self):
render_professor_notfound_page(self, resource_type="summary page")
@staticmethod
def _extract_staff_member_id(gehol_url):
parsed = urlparse.urlparse(gehol_url)
p = parsed.params
# should look like : 'Staff;id;52485'
# we keep the last part
return p.split(';')[-1]
class ProfessorIcalRenderer(webapp.RequestHandler):
calendar_fetch_funcs = {'q1': get_professor_q1_calendar,
'q2': get_professor_q2_calendar,
'january_exams': get_professor_january_calendar,
'june_exams': get_professor_june_calendar,
'september_exams': get_professor_sept_calendar}
def get(self):
if is_status_down():
render_gehol_down(self, "You asked an iCalendar file for a particular professor.")
else:
parsed = urlparse.urlparse(self.request.uri)
staff_member_id = parsed.path.split("/")[4].rstrip(".ics")
term = parsed.path.split("/")[3]
logging.info("------")
if term in ("q1", "q2", "january_exams", "june_exams", "september_exams"):
try:
logging.info("*** rendering staff/"+term)
cal = self.calendar_fetch_funcs[term](staff_member_id)
except DownloadError,e:
logging.error("Could not fetch page before deadline")
render_deadline_exceeded_page(self)
cal = None
if cal:
ical_data = convert_professor_calendar_to_ical_string(cal)
professor_name = cal.header_data['teacher_name']
ical_filename = "ULB - "+ term.upper() + " - " + professor_name.encode("iso-8859-1")
self.response.headers['Content-Type'] = "text/calendar; charset=utf-8"
self.response.headers['Content-disposition'] = "attachment; filename=%s.ics" % ical_filename
self.response.out.write(ical_data)
else:
render_professor_notfound_page(self, resource_type="iCal file")
else:
render_professor_notfound_page(self, resource_type="iCal file")