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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, Required, FileField, SelectField,\
ValidationError, file_required
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' ]
MODULES= [
('alp1', 'ALP1 - Funktionale Programmierung'),
('alp2', 'ALP2 - Objektorientierte Programmierung'),
('alp3', 'ALP3 - Datenstrukturen'),
('alp4', 'ALP4 - Nichtsequentielle Programmierung'),
('alp5', 'ALP5 - Netzprogrammierung'),
('ti1', 'TI1 - Grundlagen der Technischen Informatik'),
('ti2', 'TI2 - Rechnerarchitektur'),
('ti3', 'TI3 - Betriebs- und Kommunikationssysteme'),
('mafi1', 'MafI1 - Logik und Diskrete Mathematik'),
('mafi2', 'MafI2 - Analysis'),
('mafi3', 'MafI3 - Lineare Algebra'),
('gti', 'Grundlagen der Theoretischen Informatik'),
('dbs', 'Datenbanksysteme'),
('swt', 'Softwaretechnik'),
('aws', 'Anwendungssysteme')
]
TERM_START_YEAR = 1999
YEARS = [(str(x),x) for x in xrange(date.today().year, TERM_START_YEAR, -1)]
class UploadForm(Form):
exam = FileField('Klausur', validators=[file_required()])
module = SelectField(
'Kurs',
validators=[Required()],
choices = MODULES
)
year = SelectField(
'Jahr',
validators=[],
choices = YEARS
)
def validate_exam(form, field):
ext = map(lambda x: field.data.filename.endswith(x), ALLOWED_EXTENSIONS)
if not any(ext):
raise ValidationError('Invalid file type')
if field.data.content_length > app.config['MAX_CONTENT_LENGTH']:
raise ValidationError('File is too big')
def allowed_file(filename):
return '.' in filename and \
filename.rsplit('.', 1)[1] in ALLOWED_EXTENSIONS
@app.route('/upload', methods=['GET', 'POST'])
def upload():
form = UploadForm()
if form.validate_on_submit():
module = dict(MODULES)[form.module.data]
year = form.year.data
filename = secure_filename(form.exam.data.filename)
path = os.path.join(module,year,filename).encode('ascii')
try:
oid = fit.add_file(form.exam.data.stream.getvalue(), path)
except:
oid = fit.add_file(form.exam.data.stream.read(), path)
flash("File %s saved." % filename)
return redirect(url_for('list', 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('/modules')
@app.route('/modules/<module>')
def list(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('/', methods=['GET', 'POST'])
def index():
return list()
if __name__ == "__main__":
app.run()
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