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README.md

Unified Democracy framework

What is this?

This is the code that runs the Unified Democracy platform. You can find the master branch live at the Unified Democracy website.

What do I do if I find a bug?

If you find a bug, that is not security-related, you should report it on GitHub by creating a new issue. If the bug is security-related, do not file a GitHub issue. Instead, follow the directions below.

If you find a security-related bug (for example, if user or volunteer information is disclosed to someone who shouldn't have it), you should send me an email at tris@lessbroken.org. Please don't publically disclose the bug or exploit it beyond what you need to report it to me. Use common sense and handle this responsibly, please. If you'd like to PGP-encrypt your bug report, my key is:

pub   rsa4096/73DDD719 2016-02-15 [SC] [expires: 2018-02-14]
Key fingerprint = C751 1F5E 5650 CB9A 5246  37FF 42F2 7EB2 73DD D719

External services / API keys you need

The platform relies on Stripe in order to handle donations. If you're not accepting donations, you don't have to worry about this.

You also need a working sendmail in order to send email confirmations of accounts and other email-requiring features.

General project architecture

The project is built on the Flask web framework, using Peewee as an ORM and WTForms for form rendering and validation. If you are unfamiliar with these technologies, you should learn them, as they are fairly critical to the application.

The database used in production is SQLite. I'm sure I'll regret this later.

The testing and master branches are hosted on NearlyFreeSpeech.NET, because it's my favorite web host and they are fairly low-cost. If you plan to set up a production instance of the platform for your organization, I highly recommend them. The nfsn.sh script is designed for use on their platform.

Components

The platform is composed of several distinct components. Separation between these components is achieved using Flask's Blueprint functionality. Each component has its own directory in site/modules, with its own set of templates, forms, and routes. The only part that does not follow this pattern is the database model definition component, which is located in site/database.py.

staticpages

This is probably the easiest module to understand. It renders the template requested in the URL:

@staticpages.route("/", defaults={"page": "index"})
@staticpages.route("/<page>/")
def show_staticpage(page):
    try:
        return render_template("{}.html".format(page))
    except:
        return make_response(render_template("not_found.html"), 404)

donations

This is the module which accepts donations. It uses Stripe.js in order to not have to worry about credit card information, and keeps track of those who have donated in the database in order to comply with FEC regulations.

account

This is the module which handles user accounts. Users can create and manage their accounts with this module. This is very separate from the volunteer module.

volunteer

This module handles volunteer hour tracking. Volunteers can either be associated with an account or not ("local volunteers"). Volunteers can be associated with accounts after account registration or during account registration, and are completely separate entities from accounts.

Application initialization

This section describes the process for application initialization, and is generally a helpful resource to consult if something is going wrong during that phase.

Development server

If the development server is started with e.g. python app.py, the following process is followed:

  • the dev environment is used
  • the application is initialized
  • the application is run in debug mode

Test or Production server

If the server is started with e.g. nfsn.sh then the following procedure is used.

  • a file containing configuration keys in environment variables is sourced
  • a virtualenv with application dependencies is activated
  • the app environment is set in the APP_ENVIRONMENT environment variable
  • gunicorn calls tftwsgi to create the application
  • tftwsgi creates the application with the app environment set in the APP_ENVIRONMENT environment variable
  • the application is initialized
  • gunicorn starts workers to handle application requests

Initialization procedure

In the previous sections, "the application is initialized" refers to the following process.

  • the application loads environment-specific configuration from the appropriate configuration file
  • the database configuration is set
  • application components are loaded and registered
  • a 500 error handler is attached

Database stuff

To create database tables:

platform $ cd site
platform/site $ python manage.py -e {environment} create_db