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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
from flask.ext.wtf import Form, TextField, FileField, SelectField,\
validators, ValidationError
from werkzeug import secure_filename
from datetime import date
app = Flask(__name__)
app.config.from_pyfile('settings.py')
# populate Module-List
fit = {}
for i, study in enumerate(app.config['STUDIES'].items()):
abbr = study[0]
fit[abbr] = Fit(os.path.join('static','studies',abbr + '.git'))
modules = app.config['STUDIES'][study[0]]
# extend module list with git values
for module in fit[abbr].get_modules():
# check if module is already listed
if all(map(lambda (k,v): v != module, modules)):
slug = module.encode('ascii', errors='ignore')
app.config['STUDIES'][study[0]].append((slug, module))
class UploadForm(Form):
""" Upload Form class for validation """
study = TextField('Studiengang')
exam = FileField('Klausur')
module = SelectField('Kurs')
module_new = TextField('Modulname', validators=[validators.Optional(),
validators.Length(min=5)])
year = SelectField(
'Jahr',
validators=[validators.Required()],
choices = [ (str(x),x) for x in
xrange(date.today().year, app.config['FORM_START_YEAR']-1, -1)
]
)
def validate_exam(form, field):
exts = app.config['ALLOWED_EXTENSIONS']
ext = map(field.data.filename.endswith, exts)
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(app.config['STUDIES'][form.study.data])
data = form.module.data
if data not in modules or data == '':
raise ValidationError(u'Bitte wähle ein Modul!')
@app.route('/<study>/upload/', methods=['GET', 'POST'])
@app.route('/<study>/upload/<module>', methods=['GET', 'POST'])
def upload(study, module = None):
form = UploadForm()
form.study.data = study
form.module.choices = app.config['STUDIES'][study]
if 'new' not in dict(form.module.choices):
if len(form.module.choices) > 0:
form.module.choices.append(('', u'---'))
form.module.choices.append(('new', u'neues Modul hinzufügen'))
if form.validate_on_submit():
if form.module.data == 'new':
module = form.module_new.data
slug = module.encode('ascii', errors='ignore')
app.config['STUDIES'][study].append((slug,module))
else:
module = dict(app.config['STUDIES'][study])[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[study].add_file(form.exam.data.stream.getvalue(), path)
except:
oid = fit[study].add_file(form.exam.data.stream.read(), path)
flash("Datei %s gespeichert." % filename)
return redirect(url_for('study_index', study = study, module = module))
try: form.module.data = [k for (k,v) in form.module.choices if v == module][0]
except: pass
return render_template('upload.html', study = study, form = form)
@app.route('/<study>/files/<oid>')
def study_show(study, oid):
data = fit[study].get_file(oid)
mime = magic.Magic(mime=True)
header = { 'Content-Type' : mime.from_buffer(data[:1024]) }
return data, 200, header
@app.route('/<study>/modules')
@app.route('/<study>/modules/<module>')
def study_index(study, module=None):
if module:
return render_template(
'module_show.html', study = study, module=module, entries=fit[study].get_module(module)
)
return render_template('module_list.html', study = study, modules=fit[study].get_modules())
@app.route('/')
def index():
get_img_path = lambda x: os.path.join('images', x +'.png')
studies = [(name,get_img_path(name)) for name,m in app.config['STUDIES'].items()]
return render_template(
'index.html',
studies = studies
)
@app.route('/403')
@app.errorhandler(403)
def forbidden():
return render_template('403.html')
if __name__ == "__main__":
app.run()
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