Authentication views for Keg
Project description
Base views and forms for user login and password management in Keg applications.
Usage
There are 5 base views to allow users to login, logout and set their passwords.
Login
Logout
ChangePassword
ForgotPassword
ResetPassword
To make use of these views in your application, subclass the appropriate view
and it’s contained Responder class and implement the pure virtual methods.
You may override the templates used for these views by creating the
appropriately named template under <my application>/templates/keg-login/ or
overriding template in your Responder subclass
Example
from keg import Keg
from keg_login.ext import KegLogin
from keg_login import views
app = Keg(__name__)
KegLogin(app)
class ForgotPassword(views.ForgotPassword):
class Responder(views.ForgotPassword.Responder):
def request_password_reset(self, email):
generate_token_and_send_email(email)Templates
Keg-Login makes great use of a great Jinja2 feature called macros. they allows the user of Keg-Login to override just the piece of functionality or design without a lot of work. Here is how:
After install Keg-Login, create a keg-login folder in your application template folder.
Use own template
In this folder create a file called base.html
Within base.html build or extend the template you want to surround the
login views. The only thing that Keg-Login expects is for base.html to expose
a block main somewhere in that file. For example…
{% extends your-master-template.html %}
{# This block might be defined in your-master-template.html #}
{% block content %}
{% block main %}{% endblock %}
{% endblock %}Now Keg-Login will use the master template as the base for the auth views.
Override Keg-Login Form Rendering (Using the Macro System)
Create the macros.html file in app/templates/keg-login/macros.html. At first
all we need to do is add
{% extends "keg-login/_macros.html" %}
The _macros.html file defines all the base/default macros for rendering the
view templates. Everything in Keg-Login is a macro.
A common macro to override is the render_wrapper macro. render_wrapper and advanced feature of Jinja2 to allow the forms in Keg-Login to be “wrapped” with additional HTML. For example, if you have a bunch of extra code you want to surround the form elements with. This requires a little more explanation…
Say for example you have this master template…
<body>
<div class="container">
{% block container %} {% endblock %}
</div>
</body>You then extend this in keg-login/base.html like so…
{% extends "base.html" %}
{% block container %}
<div class="auth-container">
{% block main %}
{% endblock %}
</div>
{% endblock container %}Without render_wrapper, that would be all the customization we could do to a
form. The input tag for, say, the login form would be at
body>div.container>div.auth-container>form>input(s). What if our design
requires an html element between form and the form input’s? That would
not be possible without overriding each form implementation (not acceptable, you
might as well not use Keg-Login at that point, or create something like
render_wrapper.
To use render_wrapper, in your macros.html file but this…
{% macro render_wrapper() %}
{# the form being rendered (login/forgot password/etc) will be rendered
whereever this is placed #}
{{ caller() }}
{% endmacro %}If you want to wrap the form element in a div…
{% macro render_wrapper() %}
<div class="form-wrapper">
{{ caller() }}
</div>
{% endmacro %}Now, all of the keg-login forms will get this treatment.
Development
Branches & State
master: our “production” branch
All other branches are feature branches.
Environment
Install requirements:
$ pip install --use-wheel --no-index --find-links=requirements/wheelhouse -r requirements/dev-env.txt
$ pip install -e .
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Source Distribution
Built Distribution
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