def register():
"""
Sending a GET request returns the register.html page.
Sending a POST request validates, then registers the user.
If successful, the user is immediately brought to the sticky note page.
"""
if request.method == 'GET':
return render_template('register.html')
else:
username = request.form['username']
password = request.form['password']
confirmation = request.form['confirmPassword']
if not confirmed_password_valid(password, confirmation):
return fail_registration(
"Your password and confirmation didn't match up.")
if len(password) == 0:
return fail_registration("Passwords can not be blank.")
if ' ' in password:
return fail_registration("Passwords can not have spaces")
with closing(shelve.open(users_file)) as user_shelf:
users = Users(user_shelf)
if not users.is_valid_user(username):
flash("Username %s is not valid." % (username))
flash("Either it's taken, it has a space, or it's blank")
return render_template('register.html')
users.register_user(username, password)
session['username'] = username
return redirect(url_for('notes'))
def login():
"""
Sending a GET request gets the login form page.
Sending a POST request tries to logs in the user.
"""
if request.method == 'GET':
return render_template('login.html')
else:
username = request.form['username']
password = request.form['password']
with closing(shelve.open(users_file)) as user_shelf:
users = Users(user_shelf)
if users.login_is_valid(username, password):
session['username'] = username
return redirect(url_for('notes'))
flash('Login failed. Maybe you made a typo?')
return render_template('login.html')
def notes_storage():
"""
Sending a GET request to this URL retrieves the notes associated with
the user logged in (checked via the session).
Sending a POST request updates the shelf with the provided new values.
JavaScript calls this function to save/load notes.
"""
if 'username' not in session:
abort(401)
with closing(shelve.open(users_file)) as user_shelf:
users = Users(user_shelf)
if request.method == 'GET':
return users.stickies_for_user(session['username'])
else:
data = request.form['noteSet']
users.save_stickies_for_user(session['username'], data)
return 'Post successful'
Image.fromarray(dilated[key]).convert('L').save(key[:-4] + '_dl5.bmp')
# Repeat for erode opened and closed, using different operators
eroded = {}
for key in bmp:
eroded[key] = erode(bmp[key], se3)
Image.fromarray(eroded[key]).convert('L').save(key[:-4] + '_er3.bmp')
opened = {}
for key in bmp:
opened[key] = opening(bmp[key], se3)
Image.fromarray(opened[key]).convert('L').save(key[:-4] + '_op3.bmp')
closed = {}
for key in bmp:
closed[key] = closing(bmp[key], se5)
Image.fromarray(closed[key]).convert('L').save(key[:-4] + '_cl5.bmp')
# For outlined, start with the dilated image, or you wont get a good outline of anything.
outlined = {}
for key in dilated:
outlined[key] = boundary(dilated[key], se3)
Image.fromarray(outlined[key]).convert('L').save(key[:-4] + '_bd3.bmp')
# To arbitrarily process the image to what I think looks best
# Dilate, then close, open, and erode the image.
arb = {}
for key in bmp:
arb[key] = dilate(bmp[key], se3)
arb[key] = closing(arb[key], se5)
arb[key] = opening(arb[key], se5)