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#!/usr/bin/python2
# -*- coding: utf-8 -*-
import magic, os
from fit import Fit
from flask import Flask, render_template, request, flash, redirect, \
url_for,jsonify
from flask.ext.wtf import Form, TextField, FileField, SelectField,\
validators, ValidationError
from werkzeug import secure_filename
from datetime import date
fit = Fit('static/fit.git')
app = Flask(__name__)
app.config.from_object('settings')
ALLOWED_EXTENSIONS = ['txt', 'pdf', 'png', 'jpg', 'jpeg', 'gif', 'zip', 'gs', 'gz' ]
FORM_MODULE_LIST= [
('alp1', u'ALP1 - Funktionale Programmierung'),
('alp2', u'ALP2 - Objektorientierte Programmierung'),
('alp3', u'ALP3 - Datenstrukturen'),
('alp4', u'ALP4 - Nichtsequentielle Programmierung'),
('alp5', u'ALP5 - Netzprogrammierung'),
('ti1', u'TI1 - Grundlagen der Technischen Informatik'),
('ti2', u'TI2 - Rechnerarchitektur'),
('ti3', u'TI3 - Betriebs- und Kommunikationssysteme'),
('mafi1', u'MafI1 - Logik und Diskrete Mathematik'),
('mafi2', u'MafI2 - Analysis'),
('mafi3', u'MafI3 - Lineare Algebra'),
('gti', u'Grundlagen der Theoretischen Informatik'),
('dbs', u'Datenbanksysteme'),
('swt', u'Softwaretechnik'),
('aws', u'Anwendungssysteme'),
('', u'---'),
('new', u'neues Modul hinzufügen')
]
TERM_START_YEAR = 1999
YEARS = [(str(x),x) for x in xrange(date.today().year, TERM_START_YEAR, -1)]
class UploadForm(Form):
""" Upload Form class for validation """
exam = FileField('Klausur')
module = SelectField('Kurs', choices = FORM_MODULE_LIST)
module_new = TextField('Modulname', validators=[validators.Optional(),
validators.Length(min=5)])
year = SelectField(
'Jahr',
validators=[validators.Required()],
choices = YEARS
)
def validate_exam(form, field):
ext = map(lambda x: field.data.filename.endswith(x), ALLOWED_EXTENSIONS)
if not any(ext):
raise ValidationError(u'Ungültiger Dateityp')
if field.data.content_length > app.config['MAX_CONTENT_LENGTH']:
raise ValidationError(u'Zu große Datei')
def validate_module(form, field):
modules = dict(FORM_MODULE_LIST)
data = form.module.data
if module not in modules or data == '':
raise ValidationError(u'Bitte wähle ein Modul!')
@app.route('/upload', methods=['GET', 'POST'])
def upload():
form = UploadForm()
if form.validate_on_submit():
if form.module.data == 'new':
module = form.module_new.data
slug = module.encode('ascii', errors='ignore')
FORM_MODULE_LIST.append((slug,module))
else:
module = dict(FORM_MODULE_LIST)[form.module.data]
year = form.year.data
filename = secure_filename(form.exam.data.filename)
path = os.path.join(module,year,filename).encode('ascii', errors='ignore')
try:
oid = fit.add_file(form.exam.data.stream.getvalue(), path)
except:
oid = fit.add_file(form.exam.data.stream.read(), path)
flash("Datei %s gespeichert." % filename)
return redirect(url_for('index', module = module))
return render_template('upload.html', form = form)
@app.route('/files/<oid>')
def show(oid):
data = fit.get_file(oid)
mime = magic.Magic(mime=True)
header = { 'Content-Type' : mime.from_buffer(data[:1024]) }
return data, 200, header
@app.route('/')
@app.route('/modules')
@app.route('/modules/<module>')
def index(module=None):
if module:
return render_template(
'module_show.html', module=module, entries=fit.get_module(module)
)
return render_template('module_list.html', modules=fit.get_modules())
@app.route('/403')
@app.errorhandler(403)
def forbidden():
return render_template('403.html')
if __name__ == "__main__":
modules = dict(FORM_MODULE_LIST)
# extend module list with git values
for module in fit.get_modules():
# check if module is already listed
if all(map(lambda (k,v): v != module, modules.items())):
slug = module.encode('ascii', errors='ignore')
FORM_MODULE_LIST.insert(len(FORM_MODULE_LIST) - 2, (slug, module))
app.run()
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