def validate_login():
form_email = urllib.quote(request.form['email'])
try:
form_password = decode_vector.decode(request.form['password'])
except (TypeError, struct.error):
flash('Password must be a motion gesture, please try again.')
return redirect(url_for('index'))
gesture = dtw_algorithm.create_gesture(form_password)
authentication = False
user = model.session.query(model.User).filter_by(email=form_email).first()
if user:
for password in user.password:
# form password must be within user's own threshold for variability for at least one of 3 initial training samples
if gesture - password <= user.threshold:
authentication = True
break
if authentication is True:
session['email'] = request.form['email']
session['user_id'] = user.id
else:
flash('Please enter a valid username and password.')
user = request.form['email']
return redirect(url_for('index', user=user))
def validate_login():
form_email = urllib.quote(request.form['email'])
try:
form_password = decode_vector.decode(request.form['password'])
except (TypeError, struct.error):
flash('Password must be a motion gesture, please try again.')
return redirect(url_for('index'))
gesture = dtw_algorithm.create_gesture(form_password)
authentication = False
user = model.session.query(model.User).filter_by(email=form_email).first()
if user:
for password in user.password:
# form password must be within user's own threshold for variability for at least one of 3 initial training samples
if gesture - password <= user.threshold:
authentication = True
break
if authentication is True:
session['email'] = request.form['email']
session['user_id'] = user.id
else:
flash('Please enter a valid username and password.')
user = request.form['email']
return redirect(url_for('index', user=user))
def save_user():
form_email = urllib.quote(request.form['email'])
# checking that username was entered
if form_email:
# checking that username doesn't already exist in DB
user = model.session.query(
model.User).filter_by(email=form_email).first()
if user:
flash(
'Username already taken, please choose a different username.')
return redirect(url_for('create_user'))
else:
flash('Please enter a username.')
return redirect(url_for('create_user'))
try:
# get gestures back into lists of xyz vector lists
form_password1 = decode_vector.decode(request.form['password1'])
form_password2 = decode_vector.decode(request.form['password2'])
form_password3 = decode_vector.decode(request.form['password3'])
except (TypeError, struct.error):
flash('Password samples must be motion gestures, please try again.')
return redirect(url_for('create_user'))
gesture1 = dtw_algorithm.create_gesture(form_password1)
gesture2 = dtw_algorithm.create_gesture(form_password2)
gesture3 = dtw_algorithm.create_gesture(form_password3)
gestures = [gesture1, gesture2, gesture3]
# TODO: better way to do this combinatorics?
# run DTW on all pairs of samples (3 choose 2 combinatorics), store greatest difference as user's personal threshold
threshold = max(gesture1 - gesture2, gesture1 - gesture3,
gesture2 - gesture3)
new_user = model.User(email=form_email,
password=gestures,
threshold=threshold)
model.session.add(new_user)
model.session.commit()
flash('New user ' + request.form['email'] + ' created!')
return redirect(url_for('index'))
def save_user():
form_email = urllib.quote(request.form['email'])
# checking that username was entered
if form_email:
# checking that username doesn't already exist in DB
user = model.session.query(model.User).filter_by(email=form_email).first()
if user:
flash('Username already taken, please choose a different username.')
return redirect(url_for('create_user'))
else:
flash('Please enter a username.')
return redirect(url_for('create_user'))
try:
# get gestures back into lists of xyz vector lists
form_password1 = decode_vector.decode(request.form['password1'])
form_password2 = decode_vector.decode(request.form['password2'])
form_password3 = decode_vector.decode(request.form['password3'])
except (TypeError, struct.error):
flash('Password samples must be motion gestures, please try again.')
return redirect(url_for('create_user'))
gesture1 = dtw_algorithm.create_gesture(form_password1)
gesture2 = dtw_algorithm.create_gesture(form_password2)
gesture3 = dtw_algorithm.create_gesture(form_password3)
gestures = [gesture1, gesture2, gesture3]
# TODO: better way to do this combinatorics?
# run DTW on all pairs of samples (3 choose 2 combinatorics), store greatest difference as user's personal threshold
threshold = max(gesture1 - gesture2, gesture1 - gesture3, gesture2 - gesture3)
new_user = model.User(email=form_email, password=gestures, threshold=threshold)
model.session.add(new_user)
model.session.commit()
flash('New user ' + request.form['email'] + ' created!')
return redirect(url_for('index'))
