Skip to content


Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
branch: master
Fetching contributors…

Cannot retrieve contributors at this time

81 lines (64 sloc) 2.877 kb
import functools
import re
import flask
class SimpleRegistration(object):
def __init__(self, app, user_model, login_url, login_form, login_redirect,
logout_url, logout_redirect, signup_url, signup_form,
self.user_model = user_model
self.login_url = login_url
self.login_form = login_form
self.login_redirect = login_redirect
self.logout_url = logout_url
self.logout_redirect = logout_redirect
self.signup_url = signup_url
self.signup_form = signup_form
self.signup_redirect = signup_redirect
app.add_url_rule(login_url, None, self.login, methods=["GET", "POST"])
app.add_url_rule(signup_url, None, self.signup, methods=["GET", "POST"])
app.add_url_rule(logout_url, None, self.logout)
def before_request(self):
flask.g.user = None
if "user_id" in flask.session:
flask.g.user = self.user_model.query.get(flask.session["user_id"])
def login(self):
if flask.request.method == "POST":
form = self.login_form(flask.request.form)
if form.validate():
flask.g.user = form.user
flask.session["user_id"] =
flask.session.permanent = True
if flask.request.args.get("next"):
next = flask.request.args["next"]
if '//' not in next and not re.match(r'[^\?]*//', next):
return flask.redirect(flask.request.args["next"])
return flask.redirect(flask.url_for(self.login_redirect))
flask.flash("Sorry, there was an error!", category="error")
form = self.login_form()
return flask.render_template("login.html", form=form)
def logout(self):
del flask.session["user_id"]
return flask.redirect(flask.url_for(self.logout_redirect))
def signup(self):
if flask.request.method == "POST":
form = self.signup_form(flask.request.form)
if form.validate():
user =
flask.g.user = user
flask.session["user_id"] =
flask.session.permanent = True
return flask.redirect(flask.url_for(self.signup_redirect))
flask.flash("Sorry, there was an error!", category="error")
form = self.signup_form()
return flask.render_template("signup.html", form=form)
def login_required(f):
def decorated_function(*args, **kwargs):
if flask.g.user is None:
return flask.redirect(flask.url_for('login',
return f(*args, **kwargs)
return decorated_function
Jump to Line
Something went wrong with that request. Please try again.