├── chat
    ├── __init__.py
    ├── migrations
    │   ├── __init__.py
    │   └── 0001_initial.py
    ├── asgi.py
    ├── urls.py
    ├── routing.py
    ├── tests
    │   ├── test_views.py
    │   └── test_consumers.py
    ├── models.py
    ├── views.py
    ├── consumers.py
    └── settings.py
├── static
    ├── humans.txt
    ├── chat.css
    ├── chat.js
    ├── reconnecting-websocket.min.js
    ├── normalize.css
    ├── skeleton.css
    └── jquery-1.12.1.min.js
├── runtime.txt
├── .gitignore
├── requirements.in
├── Procfile
├── .env
├── pytest.ini
├── .travis.yml
├── tox.ini
├── manage.py
├── requirements.txt
├── TODO
├── NOTES
├── app.json
├── templates
    ├── chat
    │   ├── about.html
    │   └── room.html
    └── base.html
├── LICENSE
└── README.md


/chat/__init__.py:
--------------------------------------------------------------------------------
1 | 


--------------------------------------------------------------------------------
/static/humans.txt:
--------------------------------------------------------------------------------
1 | 


--------------------------------------------------------------------------------
/chat/migrations/__init__.py:
--------------------------------------------------------------------------------
1 | 


--------------------------------------------------------------------------------
/runtime.txt:
--------------------------------------------------------------------------------
1 | python-2.7.11


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
1 | .cache/
2 | .coverage
3 | .tox/
4 | htmlcov/
5 | staticfiles/
6 | venv/


--------------------------------------------------------------------------------
/requirements.in:
--------------------------------------------------------------------------------
1 | Django
2 | channels
3 | dj-database-url
4 | psycopg2
5 | asgi_redis
6 | haikunator


--------------------------------------------------------------------------------
/Procfile:
--------------------------------------------------------------------------------
1 | web: daphne chat.asgi:channel_layer --port $PORT --bind 0.0.0.0 -v2
2 | worker: python manage.py runworker -v2


--------------------------------------------------------------------------------
/.env:
--------------------------------------------------------------------------------
1 | DEBUG=True
2 | DATABASE_URL=postgres:///channels-example
3 | REDIS_URL=redis://localhost:6379
4 | WEB_CONCURRENCY=2


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/pytest.ini:
--------------------------------------------------------------------------------
1 | [pytest]
2 | DJANGO_SETTINGS_MODULE=chat.settings
3 | addopts=--cov=chat --cov-report=term --cov-report=html
4 | 


--------------------------------------------------------------------------------
/.travis.yml:
--------------------------------------------------------------------------------
1 | sudo: false
2 | language: python
3 | python:
4 |   - "2.7"
5 |   - "3.5"
6 | install: pip install tox-travis
7 | script: tox


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/chat/asgi.py:
--------------------------------------------------------------------------------
1 | import os
2 | import channels.asgi
3 | 
4 | os.environ.setdefault("DJANGO_SETTINGS_MODULE", "chat.settings")
5 | channel_layer = channels.asgi.get_channel_layer()


--------------------------------------------------------------------------------
/tox.ini:
--------------------------------------------------------------------------------
 1 | [tox]
 2 | envlist = py27, py35
 3 | skipsdist = true
 4 | 
 5 | [testenv]
 6 | deps = 
 7 |     -r{toxinidir}/requirements.txt
 8 |     pytest-django
 9 |     pytest-cov
10 | commands = py.test


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/static/chat.css:
--------------------------------------------------------------------------------
 1 | body {
 2 |     padding-top: 4em;
 3 | }
 4 | 
 5 | p.deck {
 6 |     font-size: 2.5rem;
 7 |     font-weight: 200;
 8 | }
 9 | 
10 | p.deck a {
11 |     text-decoration: none;
12 | }
13 | 
14 | .quiet {
15 |     font-size: 90%;
16 |     color: #999;
17 | }


--------------------------------------------------------------------------------
/manage.py:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env python
2 | import os
3 | import sys
4 | 
5 | if __name__ == "__main__":
6 |     os.environ.setdefault("DJANGO_SETTINGS_MODULE", "chat.settings")
7 |     from django.core.management import execute_from_command_line
8 |     execute_from_command_line(sys.argv)
9 | 


--------------------------------------------------------------------------------
/chat/urls.py:
--------------------------------------------------------------------------------
1 | from django.conf.urls import include, url
2 | from . import views
3 | 
4 | urlpatterns = [
5 |     url(r'^$',  views.about, name='about'),
6 |     url(r'^new/$', views.new_room, name='new_room'),
7 |     url(r'^(?P<label>[\w-]{,50})/$', views.chat_room, name='chat_room'),
8 | ]
9 | 


--------------------------------------------------------------------------------
/requirements.txt:
--------------------------------------------------------------------------------
 1 | asgi-redis==0.8.3
 2 | asgiref==0.9
 3 | autobahn==0.12.1
 4 | channels==0.9.3
 5 | daphne==0.9.1
 6 | dj-database-url==0.4.0
 7 | Django==1.9.3
 8 | haikunator==1.0.1
 9 | msgpack-python==0.4.7
10 | psycopg2==2.6.1
11 | redis==2.10.5
12 | six==1.10.0
13 | Twisted==15.5.0
14 | txaio==2.2.1
15 | wheel==0.24.0
16 | zope.interface==4.1.3
17 | 


--------------------------------------------------------------------------------
/TODO:
--------------------------------------------------------------------------------
 1 | Possible future improvements:
 2 | 
 3 | - let people change room names
 4 | - require handles (or auto-generate anon-y handles)
 5 | - persist handles, let people change them
 6 | - work on ui/ux a bit
 7 |     - can we get a slack-ish layout, with chat at the bottom?
 8 |     - list of people who are "here"?
 9 | - include old-school django POST view?
10 |     might make a good flow for the article, start with old-style and then add WSS
11 | 


--------------------------------------------------------------------------------
/NOTES:
--------------------------------------------------------------------------------
 1 | Random notes and stuff, likely to become feedback to Andrew:
 2 | 
 3 | - static files is weird. how should it work in prod? WhiteNoise-ish would be
 4 |   ideal; integrate with Daphe?
 5 | - channel backend - parse from URL?
 6 | - "routing" in websockets is weird - there's a path, but realy only a single
 7 |   consumer. some sort of url-ish routing perhaps?
 8 | 
 9 |         websocket.connect -> path dispatch -> websocket.connect.{path} channel
10 | 
11 | - debugging errors in websocket consumers SUCKS
12 | 


--------------------------------------------------------------------------------
/chat/routing.py:
--------------------------------------------------------------------------------
 1 | from channels.staticfiles import StaticFilesConsumer
 2 | from . import consumers
 3 | 
 4 | channel_routing = {
 5 |     # This makes Django serve static files from settings.STATIC_URL, similar
 6 |     # to django.views.static.serve. This isn't ideal (not exactly production
 7 |     # quality) but it works for a minimal example.
 8 |     'http.request': StaticFilesConsumer(),
 9 | 
10 |     # Wire up websocket channels to our consumers:
11 |     'websocket.connect': consumers.ws_connect,
12 |     'websocket.receive': consumers.ws_receive,
13 |     'websocket.disconnect': consumers.ws_disconnect,
14 | }


--------------------------------------------------------------------------------
/app.json:
--------------------------------------------------------------------------------
 1 | {
 2 |     "name": "Django Channels Example",
 3 |     "description": "A real-time chat app, built as a simple example of using Django Channels ",
 4 |     "repository": "https://github.com/jacobian/channels-example",
 5 |     "keywords": ["django", "channels", "websockets"],
 6 |     "scripts": {
 7 |         "postdeploy": "python manage.py migrate"
 8 |     },
 9 |     "env": {
10 |         "SECRET_KEY": {
11 |             "description": "Django's SECRET_KEY setting",
12 |             "generator": "secret"
13 |         }
14 |     },
15 |     "addons": ["heroku-postgresql", "heroku-redis", "librato"]
16 | }
17 | 


--------------------------------------------------------------------------------
/chat/tests/test_views.py:
--------------------------------------------------------------------------------
 1 | # Use django.test.TestCase here so I get the snazzy Django assertions.
 2 | 
 3 | from django.test import TestCase
 4 | from chat.models import Room, Message
 5 | 
 6 | class ViewTests(TestCase):
 7 |     def test_about(self):
 8 |         r = self.client.get('/')
 9 |         self.assertTemplateUsed(r, 'chat/about.html')
10 | 
11 |     def test_new_room(self):
12 |         r = self.client.get('/new/')
13 |         room_label = r['Location'].strip('/')
14 |         assert Room.objects.filter(label=room_label).exists()
15 | 
16 |     def test_chat_room(self):
17 |         room = Room.objects.create(label='room1')
18 |         r = self.client.get('/room1/')
19 |         self.assertTemplateUsed(r, 'chat/room.html')
20 |         assert r.context['room'] == room
21 | 


--------------------------------------------------------------------------------
/templates/chat/about.html:
--------------------------------------------------------------------------------
 1 | {% extends "base.html" %}
 2 | 
 3 | {% block content %}
 4 |   <h1>Django Channels Example</h1>
 5 |   <p class="deck">
 6 |     This is a demo using <a href="http://channels.readthedocs.org/en/latest/">
 7 |     Django Channels</a> to implement a simple WebSocket-based chat server.
 8 |     You can see the <a href="https://github.com/jacobian/channels-example">
 9 |     code on GitHub</a>, or try the app:
10 |   </p>
11 |   <p>
12 |     <a class="button button-primary" href="{% url 'new_room' %}">Create new chat room</a>
13 |   </p>
14 |   <p class="quiet">
15 |     Or, you can visit <code>{{ request.scheme }}://{{ request.get_host }}/any-path-you-want</code> 
16 |     to create a arbitrary room or join one whose name you know.
17 |   </p>
18 | {% endblock content %}


--------------------------------------------------------------------------------
/chat/models.py:
--------------------------------------------------------------------------------
 1 | from __future__ import unicode_literals
 2 | 
 3 | from django.db import models
 4 | from django.utils import timezone
 5 | 
 6 | class Room(models.Model):
 7 |     name = models.TextField()
 8 |     label = models.SlugField(unique=True)
 9 | 
10 |     def __unicode__(self):
11 |         return self.label
12 | 
13 | class Message(models.Model):
14 |     room = models.ForeignKey(Room, related_name='messages')
15 |     handle = models.TextField()
16 |     message = models.TextField()
17 |     timestamp = models.DateTimeField(default=timezone.now, db_index=True)
18 | 
19 |     def __unicode__(self):
20 |         return '[{timestamp}] {handle}: {message}'.format(**self.as_dict())
21 | 
22 |     @property
23 |     def formatted_timestamp(self):
24 |         return self.timestamp.strftime('%b %-d %-I:%M %p')
25 |     
26 |     def as_dict(self):
27 |         return {'handle': self.handle, 'message': self.message, 'timestamp': self.formatted_timestamp}


--------------------------------------------------------------------------------
/static/chat.js:
--------------------------------------------------------------------------------
 1 | $(function() {
 2 |     // When we're using HTTPS, use WSS too.
 3 |     var ws_scheme = window.location.protocol == "https:" ? "wss" : "ws";
 4 |     var chatsock = new ReconnectingWebSocket(ws_scheme + '://' + window.location.host + "/chat" + window.location.pathname);
 5 |     
 6 |     chatsock.onmessage = function(message) {
 7 |         var data = JSON.parse(message.data);
 8 |         var chat = $("#chat")
 9 |         var ele = $('<tr></tr>')
10 | 
11 |         ele.append(
12 |             $("<td></td>").text(data.timestamp)
13 |         )
14 |         ele.append(
15 |             $("<td></td>").text(data.handle)
16 |         )
17 |         ele.append(
18 |             $("<td></td>").text(data.message)
19 |         )
20 |         
21 |         chat.append(ele)
22 |     };
23 | 
24 |     $("#chatform").on("submit", function(event) {
25 |         var message = {
26 |             handle: $('#handle').val(),
27 |             message: $('#message').val(),
28 |         }
29 |         chatsock.send(JSON.stringify(message));
30 |         $("#message").val('').focus();
31 |         return false;
32 |     });
33 | });


--------------------------------------------------------------------------------
/templates/base.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 | <head>
 4 |   <meta charset="utf-8">
 5 |   <title>{% block title %}Django Channels Example2{% endblock %}</title>
 6 |   <meta name="viewport" content="width=device-width, initial-scale=1">
 7 |   <link href='//fonts.googleapis.com/css?family=Raleway:400,300,600,200' rel='stylesheet' type='text/css'>
 8 |   {% load staticfiles %}
 9 |   <link rel="stylesheet" href="{% static 'normalize.css' %}">
10 |   <link rel="stylesheet" href="{% static 'skeleton.css' %}">
11 |   <link rel="stylesheet" href="{% static 'chat.css' %}">
12 | </head>
13 | <body>
14 |   <div class="section">
15 |     <div class="container">
16 |       {% block content %}{% endblock content %}
17 |     </div>
18 |   </div>  
19 |   {% block afterbody %}{% endblock afterbody %}
20 |   <a href="https://github.com/jacobian/channels-example"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://camo.githubusercontent.com/a6677b08c955af8400f44c6298f40e7d19cc5b2d/68747470733a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f677261795f3664366436642e706e67" alt="Fork me on GitHub" data-canonical-src="https://s3.amazonaws.com/github/ribbons/forkme_right_gray_6d6d6d.png"></a>
21 | </body>
22 | </html>
23 | 


--------------------------------------------------------------------------------
/templates/chat/room.html:
--------------------------------------------------------------------------------
 1 | {% extends "base.html" %}
 2 | 
 3 | {% block content %}
 4 |   {% load staticfiles %}
 5 |   <h1>{{ room.label }}</h1>
 6 |   <p class="quiet">
 7 |     Anyone with this URL can join the room and chat: 
 8 |     <code>{{ request.scheme }}://{{ request.get_host }}/{{ room.label }}</code> 
 9 |   </p>
10 |   <p>
11 |     <label for="handle">Your name:</label>
12 |     <input id="handle" type="text" placeholder="handle">
13 |   </p>
14 |   <form id="chatform">
15 |     <table id="chat">
16 |       <tbody>
17 |         {% for message in messages %}
18 |           <tr>
19 |             <td>{{ message.formatted_timestamp }}</td>
20 |             <td>{{ message.handle }}</td>
21 |             <td>{{ message.message }}</td>
22 |           </tr> 
23 |         {% endfor %}
24 |       </tbody>
25 |       <tfoot>
26 |       <tr>
27 |         <td>Say something:</td>
28 |         <td colspan=2>
29 |           <input id="message" type="text" placeholder="message">
30 |           <button type="submit" id="go">Say it</button>
31 |         </td>
32 |       </tfoot>
33 |     </table>
34 |   </form>
35 | {% endblock content %}
36 | 
37 | {% block afterbody %}
38 |   <script type="text/javascript" src='{% static "jquery-1.12.1.min.js" %}'></script>
39 |   <script type="text/javascript" src='{% static "reconnecting-websocket.min.js" %}'></script>
40 |   <script type="text/javascript" src='{% static "chat.js" %}'></script>
41 | {% endblock afterbody %}


--------------------------------------------------------------------------------
/chat/views.py:
--------------------------------------------------------------------------------
 1 | import random
 2 | import string
 3 | from django.db import transaction
 4 | from django.shortcuts import render, redirect
 5 | import haikunator
 6 | from .models import Room
 7 | 
 8 | def about(request):
 9 |     return render(request, "chat/about.html")
10 | 
11 | def new_room(request):
12 |     """
13 |     Randomly create a new room, and redirect to it.
14 |     """
15 |     new_room = None
16 |     while not new_room:
17 |         with transaction.atomic():
18 |             label = haikunator.haikunate()
19 |             if Room.objects.filter(label=label).exists():
20 |                 continue
21 |             new_room = Room.objects.create(label=label)
22 |     return redirect(chat_room, label=label)
23 | 
24 | def chat_room(request, label):
25 |     """
26 |     Room view - show the room, with latest messages.
27 | 
28 |     The template for this view has the WebSocket business to send and stream
29 |     messages, so see the template for where the magic happens.
30 |     """
31 |     # If the room with the given label doesn't exist, automatically create it
32 |     # upon first visit (a la etherpad).
33 |     room, created = Room.objects.get_or_create(label=label)
34 | 
35 |     # We want to show the last 50 messages, ordered most-recent-last
36 |     messages = reversed(room.messages.order_by('-timestamp')[:50])
37 | 
38 |     return render(request, "chat/room.html", {
39 |         'room': room,
40 |         'messages': messages,
41 |     })
42 | 


--------------------------------------------------------------------------------
/chat/migrations/0001_initial.py:
--------------------------------------------------------------------------------
 1 | # -*- coding: utf-8 -*-
 2 | # Generated by Django 1.9.3 on 2016-03-04 17:26
 3 | from __future__ import unicode_literals
 4 | 
 5 | from django.db import migrations, models
 6 | import django.db.models.deletion
 7 | import django.utils.timezone
 8 | 
 9 | 
10 | class Migration(migrations.Migration):
11 | 
12 |     initial = True
13 | 
14 |     dependencies = [
15 |     ]
16 | 
17 |     operations = [
18 |         migrations.CreateModel(
19 |             name='Message',
20 |             fields=[
21 |                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
22 |                 ('handle', models.TextField()),
23 |                 ('message', models.TextField()),
24 |                 ('timestamp', models.DateTimeField(db_index=True, default=django.utils.timezone.now)),
25 |             ],
26 |         ),
27 |         migrations.CreateModel(
28 |             name='Room',
29 |             fields=[
30 |                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
31 |                 ('name', models.TextField()),
32 |                 ('label', models.SlugField(unique=True)),
33 |             ],
34 |         ),
35 |         migrations.AddField(
36 |             model_name='message',
37 |             name='room',
38 |             field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='messages', to='chat.Room'),
39 |         ),
40 |     ]
41 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | Copyright (c) 2016, Jacob Kaplan-Moss
 2 | 
 3 | All rights reserved.
 4 | 
 5 | Redistribution and use in source and binary forms, with or without modification,
 6 | are permitted provided that the following conditions are met:
 7 | 
 8 |     * Redistributions of source code must retain the above copyright notice,
 9 |       this list of conditions and the following disclaimer.
10 |     * Redistributions in binary form must reproduce the above copyright notice,
11 |       this list of conditions and the following disclaimer in the documentation
12 |       and/or other materials provided with the distribution.
13 |     * Neither the name of static nor the names of its contributors
14 |       may be used to endorse or promote products derived from this software
15 |       without specific prior written permission.
16 | 
17 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
21 | CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # Django Channels Example [![Build Status](https://travis-ci.org/jacobian/channels-example.svg?branch=master)](https://travis-ci.org/jacobian/channels-example)
 2 | 
 3 | This is an example app demonstrating how to use (and deploy) [Django Channels](http://channels.readthedocs.org/en/latest/). It's a simple real-time chat app — like a very, very light-weight Slack. There are a bunch of rooms, and everyone in the same room can chat, in real-time, with each other (using WebSockets).
 4 | 
 5 | For a walkthrough of what's going on here, see [my article over on the Heroku blog](https://blog.heroku.com/archives/2016/3/17/in_deep_with_django_channels_the_future_of_real_time_apps_in_django?).
 6 | 
 7 | You can visit [my deployment of the example online](https://django-channels-example.herokuapp.com/), or deploy your own copy to Heroku with this button (which requires a free Heroku account):
 8 | 
 9 | [![Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy?template=https://github.com/jacobian/channels-example)
10 | 
11 | **WARNING:** you'll need to scale the `worker` process type up after using the button. Use the Dashboard, or run `heroku ps:scale web=1:free worker=1:free`.
12 | 
13 | ## Running locally
14 | 
15 | To run this app locally, you'll need Python, Postgres, and Redis. (On my Mac, I installed [Postgres.app](http://postgresapp.com/documentation/) and Redis from Homebrew (`brew install redis`).)
16 | 
17 | Then, to run:
18 | 
19 | - Install requirements: `pip install -r requirements.txt` (you almost certainly want to do this in a virtualenv).
20 | - Migrate: `DATABASE_URL=postgres:///... python manage.py migrate`
21 | - If you use [heroku local](https://devcenter.heroku.com/articles/heroku-local), or [foreman](https://github.com/ddollar/foreman)/[forego](https://github.com/ddollar/forego), edit `.env` to add `DATABASE_URL` and `REDIS_URL`, then start `heroku local`/`foreman`/`forego`.
22 | - Or, to run locally with `runserver`, set `DATABASE_URL` and `REDIS_URL` in your environ, then run `python manage.py runserver`.
23 | - Or, to run locally with multiple proceses by setting the environ, then running the two commands (`daphne` and `runworker`) as shown in the `Procfile`.
24 | 


--------------------------------------------------------------------------------
/chat/tests/test_consumers.py:
--------------------------------------------------------------------------------
 1 | import json
 2 | 
 3 | import pytest
 4 | from asgiref.inmemory import ChannelLayer as InMemoryChannelLayer
 5 | from channels import Group
 6 | from channels.handler import AsgiRequest
 7 | from channels.message import Message
 8 | from django.contrib.sessions.backends.file import SessionStore as FileSessionStore
 9 | 
10 | from chat.consumers import ws_connect, ws_receive, ws_disconnect
11 | from chat.models import Room
12 | 
13 | @pytest.fixture
14 | def message_factory(settings, tmpdir):
15 |     def factory(name, **content):
16 |         channel_layer = InMemoryChannelLayer()
17 |         message = Message(content, name, channel_layer)
18 |         settings.SESSION_FILE_PATH = str(tmpdir)
19 |         message.channel_session = FileSessionStore()
20 |         return message
21 |     return factory
22 | 
23 | @pytest.mark.django_db
24 | def test_ws_connect(message_factory):
25 |     r = Room.objects.create(label='room1')
26 |     message = message_factory('test',
27 |         path = b'/chat/room1',
28 |         client = ['10.0.0.1', 12345],
29 |         reply_channel = u'test-reply',
30 |     )
31 |     ws_connect(message)
32 |     assert 'test-reply' in message.channel_layer._groups['chat-room1']
33 |     assert message.channel_session['room'] == 'room1'
34 | 
35 | @pytest.mark.django_db
36 | def test_ws_receive(message_factory):
37 |     r = Room.objects.create(label='room1')
38 |     message = message_factory('test', 
39 |         text = json.dumps({'handle': 'H', 'message': 'M'})
40 |     )
41 | 
42 |     # Normally this would happen when the person joins the room, but mock
43 |     # it up manually here.
44 |     message.channel_session['room'] = 'room1'
45 |     Group('chat-room1', channel_layer=message.channel_layer).add(u'test-reply')
46 | 
47 |     ws_receive(message)
48 | 
49 |     _, reply = message.channel_layer.receive_many([u'test-reply'])
50 |     reply = json.loads(reply['text'])
51 |     assert reply['message'] == 'M'
52 |     assert reply['handle'] == 'H'
53 | 
54 | @pytest.mark.django_db
55 | def test_ws_disconnect(message_factory):
56 |     r = Room.objects.create(label='room1')
57 |     message = message_factory('test', reply_channel=u'test-reply1')
58 |     Group('chat-room1', channel_layer=message.channel_layer).add(u'test-reply1')
59 |     Group('chat-room1', channel_layer=message.channel_layer).add(u'test-reply2')
60 |     message.channel_session['room'] = 'room1'
61 | 
62 |     ws_disconnect(message)
63 |     assert 'test-reply1' not in message.channel_layer._groups['chat-room1']
64 | 


--------------------------------------------------------------------------------
/static/reconnecting-websocket.min.js:
--------------------------------------------------------------------------------
1 | !function(a,b){"function"==typeof define&&define.amd?define([],b):"undefined"!=typeof module&&module.exports?module.exports=b():a.ReconnectingWebSocket=b()}(this,function(){function a(b,c,d){function l(a,b){var c=document.createEvent("CustomEvent");return c.initCustomEvent(a,!1,!1,b),c}var e={debug:!1,automaticOpen:!0,reconnectInterval:1e3,maxReconnectInterval:3e4,reconnectDecay:1.5,timeoutInterval:2e3};d||(d={});for(var f in e)this[f]="undefined"!=typeof d[f]?d[f]:e[f];this.url=b,this.reconnectAttempts=0,this.readyState=WebSocket.CONNECTING,this.protocol=null;var h,g=this,i=!1,j=!1,k=document.createElement("div");k.addEventListener("open",function(a){g.onopen(a)}),k.addEventListener("close",function(a){g.onclose(a)}),k.addEventListener("connecting",function(a){g.onconnecting(a)}),k.addEventListener("message",function(a){g.onmessage(a)}),k.addEventListener("error",function(a){g.onerror(a)}),this.addEventListener=k.addEventListener.bind(k),this.removeEventListener=k.removeEventListener.bind(k),this.dispatchEvent=k.dispatchEvent.bind(k),this.open=function(b){h=new WebSocket(g.url,c||[]),b||k.dispatchEvent(l("connecting")),(g.debug||a.debugAll)&&console.debug("ReconnectingWebSocket","attempt-connect",g.url);var d=h,e=setTimeout(function(){(g.debug||a.debugAll)&&console.debug("ReconnectingWebSocket","connection-timeout",g.url),j=!0,d.close(),j=!1},g.timeoutInterval);h.onopen=function(){clearTimeout(e),(g.debug||a.debugAll)&&console.debug("ReconnectingWebSocket","onopen",g.url),g.protocol=h.protocol,g.readyState=WebSocket.OPEN,g.reconnectAttempts=0;var d=l("open");d.isReconnect=b,b=!1,k.dispatchEvent(d)},h.onclose=function(c){if(clearTimeout(e),h=null,i)g.readyState=WebSocket.CLOSED,k.dispatchEvent(l("close"));else{g.readyState=WebSocket.CONNECTING;var d=l("connecting");d.code=c.code,d.reason=c.reason,d.wasClean=c.wasClean,k.dispatchEvent(d),b||j||((g.debug||a.debugAll)&&console.debug("ReconnectingWebSocket","onclose",g.url),k.dispatchEvent(l("close")));var e=g.reconnectInterval*Math.pow(g.reconnectDecay,g.reconnectAttempts);setTimeout(function(){g.reconnectAttempts++,g.open(!0)},e>g.maxReconnectInterval?g.maxReconnectInterval:e)}},h.onmessage=function(b){(g.debug||a.debugAll)&&console.debug("ReconnectingWebSocket","onmessage",g.url,b.data);var c=l("message");c.data=b.data,k.dispatchEvent(c)},h.onerror=function(b){(g.debug||a.debugAll)&&console.debug("ReconnectingWebSocket","onerror",g.url,b),k.dispatchEvent(l("error"))}},1==this.automaticOpen&&this.open(!1),this.send=function(b){if(h)return(g.debug||a.debugAll)&&console.debug("ReconnectingWebSocket","send",g.url,b),h.send(b);throw"INVALID_STATE_ERR : Pausing to reconnect websocket"},this.close=function(a,b){"undefined"==typeof a&&(a=1e3),i=!0,h&&h.close(a,b)},this.refresh=function(){h&&h.close()}}return a.prototype.onopen=function(){},a.prototype.onclose=function(){},a.prototype.onconnecting=function(){},a.prototype.onmessage=function(){},a.prototype.onerror=function(){},a.debugAll=!1,a.CONNECTING=WebSocket.CONNECTING,a.OPEN=WebSocket.OPEN,a.CLOSING=WebSocket.CLOSING,a.CLOSED=WebSocket.CLOSED,a});
2 | 


--------------------------------------------------------------------------------
/chat/consumers.py:
--------------------------------------------------------------------------------
 1 | import re
 2 | import json
 3 | import logging
 4 | from channels import Group
 5 | from channels.sessions import channel_session
 6 | from .models import Room
 7 | 
 8 | log = logging.getLogger(__name__)
 9 | 
10 | @channel_session
11 | def ws_connect(message):
12 |     # Extract the room from the message. This expects message.path to be of the
13 |     # form /chat/{label}/, and finds a Room if the message path is applicable,
14 |     # and if the Room exists. Otherwise, bails (meaning this is a some othersort
15 |     # of websocket). So, this is effectively a version of _get_object_or_404.
16 |     try:
17 |         prefix, label = message['path'].decode('ascii').strip('/').split('/')
18 |         if prefix != 'chat':
19 |             log.debug('invalid ws path=%s', message['path'])
20 |             return
21 |         room = Room.objects.get(label=label)
22 |     except ValueError:
23 |         log.debug('invalid ws path=%s', message['path'])
24 |         return
25 |     except Room.DoesNotExist:
26 |         log.debug('ws room does not exist label=%s', label)
27 |         return
28 | 
29 |     log.debug('chat connect room=%s client=%s:%s', 
30 |         room.label, message['client'][0], message['client'][1])
31 |     
32 |     # Need to be explicit about the channel layer so that testability works
33 |     # This may be a FIXME?
34 |     Group('chat-'+label, channel_layer=message.channel_layer).add(message.reply_channel)
35 | 
36 |     message.channel_session['room'] = room.label
37 | 
38 | @channel_session
39 | def ws_receive(message):
40 |     # Look up the room from the channel session, bailing if it doesn't exist
41 |     try:
42 |         label = message.channel_session['room']
43 |         room = Room.objects.get(label=label)
44 |     except KeyError:
45 |         log.debug('no room in channel_session')
46 |         return
47 |     except Room.DoesNotExist:
48 |         log.debug('recieved message, buy room does not exist label=%s', label)
49 |         return
50 | 
51 |     # Parse out a chat message from the content text, bailing if it doesn't
52 |     # conform to the expected message format.
53 |     try:
54 |         data = json.loads(message['text'])
55 |     except ValueError:
56 |         log.debug("ws message isn't json text=%s", text)
57 |         return
58 |     
59 |     if set(data.keys()) != set(('handle', 'message')):
60 |         log.debug("ws message unexpected format data=%s", data)
61 |         return
62 | 
63 |     if data:
64 |         log.debug('chat message room=%s handle=%s message=%s', 
65 |             room.label, data['handle'], data['message'])
66 |         m = room.messages.create(**data)
67 | 
68 |         # See above for the note about Group
69 |         Group('chat-'+label, channel_layer=message.channel_layer).send({'text': json.dumps(m.as_dict())})
70 | 
71 | @channel_session
72 | def ws_disconnect(message):
73 |     try:
74 |         label = message.channel_session['room']
75 |         room = Room.objects.get(label=label)
76 |         Group('chat-'+label, channel_layer=message.channel_layer).discard(message.reply_channel)
77 |     except (KeyError, Room.DoesNotExist):
78 |         pass
79 | 


--------------------------------------------------------------------------------
/chat/settings.py:
--------------------------------------------------------------------------------
  1 | import os
  2 | import random
  3 | import string
  4 | import dj_database_url
  5 | 
  6 | BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
  7 | PROJECT_ROOT = os.path.dirname(os.path.abspath(__file__))
  8 | 
  9 | SECRET_KEY = os.environ.get("SECRET_KEY", "".join(random.choice(string.printable) for i in range(40)))
 10 | DEBUG = os.environ.get("DEBUG", False)
 11 | 
 12 | # Application definition
 13 | INSTALLED_APPS = (
 14 |     'django.contrib.admin',
 15 |     'django.contrib.auth',
 16 |     'django.contrib.contenttypes',
 17 |     'django.contrib.sessions',
 18 |     'django.contrib.messages',
 19 |     'django.contrib.staticfiles',
 20 |     'channels',
 21 |     'chat',
 22 | )
 23 | 
 24 | MIDDLEWARE_CLASSES = (
 25 |     'django.contrib.sessions.middleware.SessionMiddleware',
 26 |     'django.middleware.common.CommonMiddleware',
 27 |     'django.middleware.csrf.CsrfViewMiddleware',
 28 |     'django.contrib.auth.middleware.AuthenticationMiddleware',
 29 |     'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
 30 |     'django.contrib.messages.middleware.MessageMiddleware',
 31 |     'django.middleware.clickjacking.XFrameOptionsMiddleware',
 32 |     'django.middleware.security.SecurityMiddleware',
 33 | )
 34 | 
 35 | ROOT_URLCONF = 'chat.urls'
 36 | 
 37 | TEMPLATES = (
 38 |     {
 39 |         'BACKEND': 'django.template.backends.django.DjangoTemplates',
 40 |         'DIRS': [os.path.join(BASE_DIR, 'templates')],
 41 |         'APP_DIRS': True,
 42 |         'OPTIONS': {
 43 |             'context_processors': [
 44 |                 'django.template.context_processors.debug',
 45 |                 'django.template.context_processors.request',
 46 |                 'django.contrib.auth.context_processors.auth',
 47 |                 'django.contrib.messages.context_processors.messages',
 48 |             ],
 49 |             'debug': DEBUG,
 50 |         },
 51 |     },
 52 | )
 53 | 
 54 | # Database
 55 | # https://docs.djangoproject.com/en/1.9/ref/settings/#databases
 56 | 
 57 | DATABASES = {
 58 |     'default': dj_database_url.config(default="postgres:///channels-example", conn_max_age=500)
 59 | }
 60 | 
 61 | AUTH_PASSWORD_VALIDATORS = (
 62 |     {
 63 |         'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
 64 |     },
 65 |     {
 66 |         'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
 67 |     },
 68 |     {
 69 |         'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
 70 |     },
 71 |     {
 72 |         'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
 73 |     },
 74 | )
 75 | 
 76 | # Internationalization
 77 | # https://docs.djangoproject.com/en/1.9/topics/i18n/
 78 | LANGUAGE_CODE = 'en-us'
 79 | TIME_ZONE = 'UTC'
 80 | USE_I18N = True
 81 | USE_L10N = True
 82 | USE_TZ = True
 83 | 
 84 | # Honor the 'X-Forwarded-Proto' header for request.is_secure()
 85 | SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
 86 | 
 87 | # Allow all host headers
 88 | ALLOWED_HOSTS = ['*']
 89 | 
 90 | # Static files (CSS, JavaScript, Images)
 91 | # https://docs.djangoproject.com/en/1.9/howto/static-files/
 92 | 
 93 | STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
 94 | STATIC_URL = '/static/'
 95 | 
 96 | # Extra places for collectstatic to find static files.
 97 | STATICFILES_DIRS = [
 98 |     os.path.join(BASE_DIR, 'static'),
 99 | ]
100 | 
101 | # Channel settings
102 | CHANNEL_LAYERS = {
103 |     "default": {
104 |         "BACKEND": "asgi_redis.RedisChannelLayer",
105 |         "CONFIG": {
106 |             "hosts": [os.environ.get('REDIS_URL', 'redis://localhost:6379')],
107 |         },
108 |         "ROUTING": "chat.routing.channel_routing",
109 |     },
110 | }
111 | 
112 | # Logging
113 | LOGGING = {
114 |     'version': 1,
115 |     'disable_existing_loggers': False,
116 |     'handlers': {
117 |         'console': {
118 |             'class': 'logging.StreamHandler',
119 |         },
120 |     },
121 |     'loggers': {
122 |         'django': {
123 |             'handlers': ['console'],
124 |             'propagate': True,
125 |             'level': 'INFO'
126 |         },
127 |         'chat': {
128 |             'handlers': ['console'],
129 |             'propagate': False,
130 |             'level': 'DEBUG',
131 |         },
132 |     },
133 | }


--------------------------------------------------------------------------------
/static/normalize.css:
--------------------------------------------------------------------------------
  1 | /*! normalize.css v3.0.2 | MIT License | git.io/normalize */
  2 | 
  3 | /**
  4 |  * 1. Set default font family to sans-serif.
  5 |  * 2. Prevent iOS text size adjust after orientation change, without disabling
  6 |  *    user zoom.
  7 |  */
  8 | 
  9 | html {
 10 |   font-family: sans-serif; /* 1 */
 11 |   -ms-text-size-adjust: 100%; /* 2 */
 12 |   -webkit-text-size-adjust: 100%; /* 2 */
 13 | }
 14 | 
 15 | /**
 16 |  * Remove default margin.
 17 |  */
 18 | 
 19 | body {
 20 |   margin: 0;
 21 | }
 22 | 
 23 | /* HTML5 display definitions
 24 |    ========================================================================== */
 25 | 
 26 | /**
 27 |  * Correct `block` display not defined for any HTML5 element in IE 8/9.
 28 |  * Correct `block` display not defined for `details` or `summary` in IE 10/11
 29 |  * and Firefox.
 30 |  * Correct `block` display not defined for `main` in IE 11.
 31 |  */
 32 | 
 33 | article,
 34 | aside,
 35 | details,
 36 | figcaption,
 37 | figure,
 38 | footer,
 39 | header,
 40 | hgroup,
 41 | main,
 42 | menu,
 43 | nav,
 44 | section,
 45 | summary {
 46 |   display: block;
 47 | }
 48 | 
 49 | /**
 50 |  * 1. Correct `inline-block` display not defined in IE 8/9.
 51 |  * 2. Normalize vertical alignment of `progress` in Chrome, Firefox, and Opera.
 52 |  */
 53 | 
 54 | audio,
 55 | canvas,
 56 | progress,
 57 | video {
 58 |   display: inline-block; /* 1 */
 59 |   vertical-align: baseline; /* 2 */
 60 | }
 61 | 
 62 | /**
 63 |  * Prevent modern browsers from displaying `audio` without controls.
 64 |  * Remove excess height in iOS 5 devices.
 65 |  */
 66 | 
 67 | audio:not([controls]) {
 68 |   display: none;
 69 |   height: 0;
 70 | }
 71 | 
 72 | /**
 73 |  * Address `[hidden]` styling not present in IE 8/9/10.
 74 |  * Hide the `template` element in IE 8/9/11, Safari, and Firefox < 22.
 75 |  */
 76 | 
 77 | [hidden],
 78 | template {
 79 |   display: none;
 80 | }
 81 | 
 82 | /* Links
 83 |    ========================================================================== */
 84 | 
 85 | /**
 86 |  * Remove the gray background color from active links in IE 10.
 87 |  */
 88 | 
 89 | a {
 90 |   background-color: transparent;
 91 | }
 92 | 
 93 | /**
 94 |  * Improve readability when focused and also mouse hovered in all browsers.
 95 |  */
 96 | 
 97 | a:active,
 98 | a:hover {
 99 |   outline: 0;
100 | }
101 | 
102 | /* Text-level semantics
103 |    ========================================================================== */
104 | 
105 | /**
106 |  * Address styling not present in IE 8/9/10/11, Safari, and Chrome.
107 |  */
108 | 
109 | abbr[title] {
110 |   border-bottom: 1px dotted;
111 | }
112 | 
113 | /**
114 |  * Address style set to `bolder` in Firefox 4+, Safari, and Chrome.
115 |  */
116 | 
117 | b,
118 | strong {
119 |   font-weight: bold;
120 | }
121 | 
122 | /**
123 |  * Address styling not present in Safari and Chrome.
124 |  */
125 | 
126 | dfn {
127 |   font-style: italic;
128 | }
129 | 
130 | /**
131 |  * Address variable `h1` font-size and margin within `section` and `article`
132 |  * contexts in Firefox 4+, Safari, and Chrome.
133 |  */
134 | 
135 | h1 {
136 |   font-size: 2em;
137 |   margin: 0.67em 0;
138 | }
139 | 
140 | /**
141 |  * Address styling not present in IE 8/9.
142 |  */
143 | 
144 | mark {
145 |   background: #ff0;
146 |   color: #000;
147 | }
148 | 
149 | /**
150 |  * Address inconsistent and variable font size in all browsers.
151 |  */
152 | 
153 | small {
154 |   font-size: 80%;
155 | }
156 | 
157 | /**
158 |  * Prevent `sub` and `sup` affecting `line-height` in all browsers.
159 |  */
160 | 
161 | sub,
162 | sup {
163 |   font-size: 75%;
164 |   line-height: 0;
165 |   position: relative;
166 |   vertical-align: baseline;
167 | }
168 | 
169 | sup {
170 |   top: -0.5em;
171 | }
172 | 
173 | sub {
174 |   bottom: -0.25em;
175 | }
176 | 
177 | /* Embedded content
178 |    ========================================================================== */
179 | 
180 | /**
181 |  * Remove border when inside `a` element in IE 8/9/10.
182 |  */
183 | 
184 | img {
185 |   border: 0;
186 | }
187 | 
188 | /**
189 |  * Correct overflow not hidden in IE 9/10/11.
190 |  */
191 | 
192 | svg:not(:root) {
193 |   overflow: hidden;
194 | }
195 | 
196 | /* Grouping content
197 |    ========================================================================== */
198 | 
199 | /**
200 |  * Address margin not present in IE 8/9 and Safari.
201 |  */
202 | 
203 | figure {
204 |   margin: 1em 40px;
205 | }
206 | 
207 | /**
208 |  * Address differences between Firefox and other browsers.
209 |  */
210 | 
211 | hr {
212 |   -moz-box-sizing: content-box;
213 |   box-sizing: content-box;
214 |   height: 0;
215 | }
216 | 
217 | /**
218 |  * Contain overflow in all browsers.
219 |  */
220 | 
221 | pre {
222 |   overflow: auto;
223 | }
224 | 
225 | /**
226 |  * Address odd `em`-unit font size rendering in all browsers.
227 |  */
228 | 
229 | code,
230 | kbd,
231 | pre,
232 | samp {
233 |   font-family: monospace, monospace;
234 |   font-size: 1em;
235 | }
236 | 
237 | /* Forms
238 |    ========================================================================== */
239 | 
240 | /**
241 |  * Known limitation: by default, Chrome and Safari on OS X allow very limited
242 |  * styling of `select`, unless a `border` property is set.
243 |  */
244 | 
245 | /**
246 |  * 1. Correct color not being inherited.
247 |  *    Known issue: affects color of disabled elements.
248 |  * 2. Correct font properties not being inherited.
249 |  * 3. Address margins set differently in Firefox 4+, Safari, and Chrome.
250 |  */
251 | 
252 | button,
253 | input,
254 | optgroup,
255 | select,
256 | textarea {
257 |   color: inherit; /* 1 */
258 |   font: inherit; /* 2 */
259 |   margin: 0; /* 3 */
260 | }
261 | 
262 | /**
263 |  * Address `overflow` set to `hidden` in IE 8/9/10/11.
264 |  */
265 | 
266 | button {
267 |   overflow: visible;
268 | }
269 | 
270 | /**
271 |  * Address inconsistent `text-transform` inheritance for `button` and `select`.
272 |  * All other form control elements do not inherit `text-transform` values.
273 |  * Correct `button` style inheritance in Firefox, IE 8/9/10/11, and Opera.
274 |  * Correct `select` style inheritance in Firefox.
275 |  */
276 | 
277 | button,
278 | select {
279 |   text-transform: none;
280 | }
281 | 
282 | /**
283 |  * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
284 |  *    and `video` controls.
285 |  * 2. Correct inability to style clickable `input` types in iOS.
286 |  * 3. Improve usability and consistency of cursor style between image-type
287 |  *    `input` and others.
288 |  */
289 | 
290 | button,
291 | html input[type="button"], /* 1 */
292 | input[type="reset"],
293 | input[type="submit"] {
294 |   -webkit-appearance: button; /* 2 */
295 |   cursor: pointer; /* 3 */
296 | }
297 | 
298 | /**
299 |  * Re-set default cursor for disabled elements.
300 |  */
301 | 
302 | button[disabled],
303 | html input[disabled] {
304 |   cursor: default;
305 | }
306 | 
307 | /**
308 |  * Remove inner padding and border in Firefox 4+.
309 |  */
310 | 
311 | button::-moz-focus-inner,
312 | input::-moz-focus-inner {
313 |   border: 0;
314 |   padding: 0;
315 | }
316 | 
317 | /**
318 |  * Address Firefox 4+ setting `line-height` on `input` using `!important` in
319 |  * the UA stylesheet.
320 |  */
321 | 
322 | input {
323 |   line-height: normal;
324 | }
325 | 
326 | /**
327 |  * It's recommended that you don't attempt to style these elements.
328 |  * Firefox's implementation doesn't respect box-sizing, padding, or width.
329 |  *
330 |  * 1. Address box sizing set to `content-box` in IE 8/9/10.
331 |  * 2. Remove excess padding in IE 8/9/10.
332 |  */
333 | 
334 | input[type="checkbox"],
335 | input[type="radio"] {
336 |   box-sizing: border-box; /* 1 */
337 |   padding: 0; /* 2 */
338 | }
339 | 
340 | /**
341 |  * Fix the cursor style for Chrome's increment/decrement buttons. For certain
342 |  * `font-size` values of the `input`, it causes the cursor style of the
343 |  * decrement button to change from `default` to `text`.
344 |  */
345 | 
346 | input[type="number"]::-webkit-inner-spin-button,
347 | input[type="number"]::-webkit-outer-spin-button {
348 |   height: auto;
349 | }
350 | 
351 | /**
352 |  * 1. Address `appearance` set to `searchfield` in Safari and Chrome.
353 |  * 2. Address `box-sizing` set to `border-box` in Safari and Chrome
354 |  *    (include `-moz` to future-proof).
355 |  */
356 | 
357 | input[type="search"] {
358 |   -webkit-appearance: textfield; /* 1 */
359 |   -moz-box-sizing: content-box;
360 |   -webkit-box-sizing: content-box; /* 2 */
361 |   box-sizing: content-box;
362 | }
363 | 
364 | /**
365 |  * Remove inner padding and search cancel button in Safari and Chrome on OS X.
366 |  * Safari (but not Chrome) clips the cancel button when the search input has
367 |  * padding (and `textfield` appearance).
368 |  */
369 | 
370 | input[type="search"]::-webkit-search-cancel-button,
371 | input[type="search"]::-webkit-search-decoration {
372 |   -webkit-appearance: none;
373 | }
374 | 
375 | /**
376 |  * Define consistent border, margin, and padding.
377 |  */
378 | 
379 | fieldset {
380 |   border: 1px solid #c0c0c0;
381 |   margin: 0 2px;
382 |   padding: 0.35em 0.625em 0.75em;
383 | }
384 | 
385 | /**
386 |  * 1. Correct `color` not being inherited in IE 8/9/10/11.
387 |  * 2. Remove padding so people aren't caught out if they zero out fieldsets.
388 |  */
389 | 
390 | legend {
391 |   border: 0; /* 1 */
392 |   padding: 0; /* 2 */
393 | }
394 | 
395 | /**
396 |  * Remove default vertical scrollbar in IE 8/9/10/11.
397 |  */
398 | 
399 | textarea {
400 |   overflow: auto;
401 | }
402 | 
403 | /**
404 |  * Don't inherit the `font-weight` (applied by a rule above).
405 |  * NOTE: the default cannot safely be changed in Chrome and Safari on OS X.
406 |  */
407 | 
408 | optgroup {
409 |   font-weight: bold;
410 | }
411 | 
412 | /* Tables
413 |    ========================================================================== */
414 | 
415 | /**
416 |  * Remove most spacing between table cells.
417 |  */
418 | 
419 | table {
420 |   border-collapse: collapse;
421 |   border-spacing: 0;
422 | }
423 | 
424 | td,
425 | th {
426 |   padding: 0;
427 | }


--------------------------------------------------------------------------------
/static/skeleton.css:
--------------------------------------------------------------------------------
  1 | /*
  2 | * Skeleton V2.0.4
  3 | * Copyright 2014, Dave Gamache
  4 | * www.getskeleton.com
  5 | * Free to use under the MIT license.
  6 | * http://www.opensource.org/licenses/mit-license.php
  7 | * 12/29/2014
  8 | */
  9 | 
 10 | 
 11 | /* Table of contents
 12 | ––––––––––––––––––––––––––––––––––––––––––––––––––
 13 | - Grid
 14 | - Base Styles
 15 | - Typography
 16 | - Links
 17 | - Buttons
 18 | - Forms
 19 | - Lists
 20 | - Code
 21 | - Tables
 22 | - Spacing
 23 | - Utilities
 24 | - Clearing
 25 | - Media Queries
 26 | */
 27 | 
 28 | 
 29 | /* Grid
 30 | –––––––––––––––––––––––––––––––––––––––––––––––––– */
 31 | .container {
 32 |   position: relative;
 33 |   width: 100%;
 34 |   max-width: 960px;
 35 |   margin: 0 auto;
 36 |   padding: 0 20px;
 37 |   box-sizing: border-box; }
 38 | .column,
 39 | .columns {
 40 |   width: 100%;
 41 |   float: left;
 42 |   box-sizing: border-box; }
 43 | 
 44 | /* For devices larger than 400px */
 45 | @media (min-width: 400px) {
 46 |   .container {
 47 |     width: 85%;
 48 |     padding: 0; }
 49 | }
 50 | 
 51 | /* For devices larger than 550px */
 52 | @media (min-width: 550px) {
 53 |   .container {
 54 |     width: 80%; }
 55 |   .column,
 56 |   .columns {
 57 |     margin-left: 4%; }
 58 |   .column:first-child,
 59 |   .columns:first-child {
 60 |     margin-left: 0; }
 61 | 
 62 |   .one.column,
 63 |   .one.columns                    { width: 4.66666666667%; }
 64 |   .two.columns                    { width: 13.3333333333%; }
 65 |   .three.columns                  { width: 22%;            }
 66 |   .four.columns                   { width: 30.6666666667%; }
 67 |   .five.columns                   { width: 39.3333333333%; }
 68 |   .six.columns                    { width: 48%;            }
 69 |   .seven.columns                  { width: 56.6666666667%; }
 70 |   .eight.columns                  { width: 65.3333333333%; }
 71 |   .nine.columns                   { width: 74.0%;          }
 72 |   .ten.columns                    { width: 82.6666666667%; }
 73 |   .eleven.columns                 { width: 91.3333333333%; }
 74 |   .twelve.columns                 { width: 100%; margin-left: 0; }
 75 | 
 76 |   .one-third.column               { width: 30.6666666667%; }
 77 |   .two-thirds.column              { width: 65.3333333333%; }
 78 | 
 79 |   .one-half.column                { width: 48%; }
 80 | 
 81 |   /* Offsets */
 82 |   .offset-by-one.column,
 83 |   .offset-by-one.columns          { margin-left: 8.66666666667%; }
 84 |   .offset-by-two.column,
 85 |   .offset-by-two.columns          { margin-left: 17.3333333333%; }
 86 |   .offset-by-three.column,
 87 |   .offset-by-three.columns        { margin-left: 26%;            }
 88 |   .offset-by-four.column,
 89 |   .offset-by-four.columns         { margin-left: 34.6666666667%; }
 90 |   .offset-by-five.column,
 91 |   .offset-by-five.columns         { margin-left: 43.3333333333%; }
 92 |   .offset-by-six.column,
 93 |   .offset-by-six.columns          { margin-left: 52%;            }
 94 |   .offset-by-seven.column,
 95 |   .offset-by-seven.columns        { margin-left: 60.6666666667%; }
 96 |   .offset-by-eight.column,
 97 |   .offset-by-eight.columns        { margin-left: 69.3333333333%; }
 98 |   .offset-by-nine.column,
 99 |   .offset-by-nine.columns         { margin-left: 78.0%;          }
100 |   .offset-by-ten.column,
101 |   .offset-by-ten.columns          { margin-left: 86.6666666667%; }
102 |   .offset-by-eleven.column,
103 |   .offset-by-eleven.columns       { margin-left: 95.3333333333%; }
104 | 
105 |   .offset-by-one-third.column,
106 |   .offset-by-one-third.columns    { margin-left: 34.6666666667%; }
107 |   .offset-by-two-thirds.column,
108 |   .offset-by-two-thirds.columns   { margin-left: 69.3333333333%; }
109 | 
110 |   .offset-by-one-half.column,
111 |   .offset-by-one-half.columns     { margin-left: 52%; }
112 | 
113 | }
114 | 
115 | 
116 | /* Base Styles
117 | –––––––––––––––––––––––––––––––––––––––––––––––––– */
118 | /* NOTE
119 | html is set to 62.5% so that all the REM measurements throughout Skeleton
120 | are based on 10px sizing. So basically 1.5rem = 15px :) */
121 | html {
122 |   font-size: 62.5%; }
123 | body {
124 |   font-size: 1.5em; /* currently ems cause chrome bug misinterpreting rems on body element */
125 |   line-height: 1.6;
126 |   font-weight: 400;
127 |   font-family: "Raleway", "HelveticaNeue", "Helvetica Neue", Helvetica, Arial, sans-serif;
128 |   color: #222; }
129 | 
130 | 
131 | /* Typography
132 | –––––––––––––––––––––––––––––––––––––––––––––––––– */
133 | h1, h2, h3, h4, h5, h6 {
134 |   margin-top: 0;
135 |   margin-bottom: 2rem;
136 |   font-weight: 300; }
137 | h1 { font-size: 4.0rem; line-height: 1.2;  letter-spacing: -.1rem;}
138 | h2 { font-size: 3.6rem; line-height: 1.25; letter-spacing: -.1rem; }
139 | h3 { font-size: 3.0rem; line-height: 1.3;  letter-spacing: -.1rem; }
140 | h4 { font-size: 2.4rem; line-height: 1.35; letter-spacing: -.08rem; }
141 | h5 { font-size: 1.8rem; line-height: 1.5;  letter-spacing: -.05rem; }
142 | h6 { font-size: 1.5rem; line-height: 1.6;  letter-spacing: 0; }
143 | 
144 | /* Larger than phablet */
145 | @media (min-width: 550px) {
146 |   h1 { font-size: 5.0rem; }
147 |   h2 { font-size: 4.2rem; }
148 |   h3 { font-size: 3.6rem; }
149 |   h4 { font-size: 3.0rem; }
150 |   h5 { font-size: 2.4rem; }
151 |   h6 { font-size: 1.5rem; }
152 | }
153 | 
154 | p {
155 |   margin-top: 0; }
156 | 
157 | 
158 | /* Links
159 | –––––––––––––––––––––––––––––––––––––––––––––––––– */
160 | a {
161 |   color: #1EAEDB; }
162 | a:hover {
163 |   color: #0FA0CE; }
164 | 
165 | 
166 | /* Buttons
167 | –––––––––––––––––––––––––––––––––––––––––––––––––– */
168 | .button,
169 | button,
170 | input[type="submit"],
171 | input[type="reset"],
172 | input[type="button"] {
173 |   display: inline-block;
174 |   height: 38px;
175 |   padding: 0 30px;
176 |   color: #555;
177 |   text-align: center;
178 |   font-size: 11px;
179 |   font-weight: 600;
180 |   line-height: 38px;
181 |   letter-spacing: .1rem;
182 |   text-transform: uppercase;
183 |   text-decoration: none;
184 |   white-space: nowrap;
185 |   background-color: transparent;
186 |   border-radius: 4px;
187 |   border: 1px solid #bbb;
188 |   cursor: pointer;
189 |   box-sizing: border-box; }
190 | .button:hover,
191 | button:hover,
192 | input[type="submit"]:hover,
193 | input[type="reset"]:hover,
194 | input[type="button"]:hover,
195 | .button:focus,
196 | button:focus,
197 | input[type="submit"]:focus,
198 | input[type="reset"]:focus,
199 | input[type="button"]:focus {
200 |   color: #333;
201 |   border-color: #888;
202 |   outline: 0; }
203 | .button.button-primary,
204 | button.button-primary,
205 | input[type="submit"].button-primary,
206 | input[type="reset"].button-primary,
207 | input[type="button"].button-primary {
208 |   color: #FFF;
209 |   background-color: #33C3F0;
210 |   border-color: #33C3F0; }
211 | .button.button-primary:hover,
212 | button.button-primary:hover,
213 | input[type="submit"].button-primary:hover,
214 | input[type="reset"].button-primary:hover,
215 | input[type="button"].button-primary:hover,
216 | .button.button-primary:focus,
217 | button.button-primary:focus,
218 | input[type="submit"].button-primary:focus,
219 | input[type="reset"].button-primary:focus,
220 | input[type="button"].button-primary:focus {
221 |   color: #FFF;
222 |   background-color: #1EAEDB;
223 |   border-color: #1EAEDB; }
224 | 
225 | 
226 | /* Forms
227 | –––––––––––––––––––––––––––––––––––––––––––––––––– */
228 | input[type="email"],
229 | input[type="number"],
230 | input[type="search"],
231 | input[type="text"],
232 | input[type="tel"],
233 | input[type="url"],
234 | input[type="password"],
235 | textarea,
236 | select {
237 |   height: 38px;
238 |   padding: 6px 10px; /* The 6px vertically centers text on FF, ignored by Webkit */
239 |   background-color: #fff;
240 |   border: 1px solid #D1D1D1;
241 |   border-radius: 4px;
242 |   box-shadow: none;
243 |   box-sizing: border-box; }
244 | /* Removes awkward default styles on some inputs for iOS */
245 | input[type="email"],
246 | input[type="number"],
247 | input[type="search"],
248 | input[type="text"],
249 | input[type="tel"],
250 | input[type="url"],
251 | input[type="password"],
252 | textarea {
253 |   -webkit-appearance: none;
254 |      -moz-appearance: none;
255 |           appearance: none; }
256 | textarea {
257 |   min-height: 65px;
258 |   padding-top: 6px;
259 |   padding-bottom: 6px; }
260 | input[type="email"]:focus,
261 | input[type="number"]:focus,
262 | input[type="search"]:focus,
263 | input[type="text"]:focus,
264 | input[type="tel"]:focus,
265 | input[type="url"]:focus,
266 | input[type="password"]:focus,
267 | textarea:focus,
268 | select:focus {
269 |   border: 1px solid #33C3F0;
270 |   outline: 0; }
271 | label,
272 | legend {
273 |   display: block;
274 |   margin-bottom: .5rem;
275 |   font-weight: 600; }
276 | fieldset {
277 |   padding: 0;
278 |   border-width: 0; }
279 | input[type="checkbox"],
280 | input[type="radio"] {
281 |   display: inline; }
282 | label > .label-body {
283 |   display: inline-block;
284 |   margin-left: .5rem;
285 |   font-weight: normal; }
286 | 
287 | 
288 | /* Lists
289 | –––––––––––––––––––––––––––––––––––––––––––––––––– */
290 | ul {
291 |   list-style: circle inside; }
292 | ol {
293 |   list-style: decimal inside; }
294 | ol, ul {
295 |   padding-left: 0;
296 |   margin-top: 0; }
297 | ul ul,
298 | ul ol,
299 | ol ol,
300 | ol ul {
301 |   margin: 1.5rem 0 1.5rem 3rem;
302 |   font-size: 90%; }
303 | li {
304 |   margin-bottom: 1rem; }
305 | 
306 | 
307 | /* Code
308 | –––––––––––––––––––––––––––––––––––––––––––––––––– */
309 | code {
310 |   padding: .2rem .5rem;
311 |   margin: 0 .2rem;
312 |   font-size: 90%;
313 |   white-space: nowrap;
314 |   background: #F1F1F1;
315 |   border: 1px solid #E1E1E1;
316 |   border-radius: 4px; }
317 | pre > code {
318 |   display: block;
319 |   padding: 1rem 1.5rem;
320 |   white-space: pre; }
321 | 
322 | 
323 | /* Tables
324 | –––––––––––––––––––––––––––––––––––––––––––––––––– */
325 | th,
326 | td {
327 |   padding: 12px 15px;
328 |   text-align: left;
329 |   border-bottom: 1px solid #E1E1E1; }
330 | th:first-child,
331 | td:first-child {
332 |   padding-left: 0; }
333 | th:last-child,
334 | td:last-child {
335 |   padding-right: 0; }
336 | 
337 | 
338 | /* Spacing
339 | –––––––––––––––––––––––––––––––––––––––––––––––––– */
340 | button,
341 | .button {
342 |   margin-bottom: 1rem; }
343 | input,
344 | textarea,
345 | select,
346 | fieldset {
347 |   margin-bottom: 1.5rem; }
348 | pre,
349 | blockquote,
350 | dl,
351 | figure,
352 | table,
353 | p,
354 | ul,
355 | ol,
356 | form {
357 |   margin-bottom: 2.5rem; }
358 | 
359 | 
360 | /* Utilities
361 | –––––––––––––––––––––––––––––––––––––––––––––––––– */
362 | .u-full-width {
363 |   width: 100%;
364 |   box-sizing: border-box; }
365 | .u-max-full-width {
366 |   max-width: 100%;
367 |   box-sizing: border-box; }
368 | .u-pull-right {
369 |   float: right; }
370 | .u-pull-left {
371 |   float: left; }
372 | 
373 | 
374 | /* Misc
375 | –––––––––––––––––––––––––––––––––––––––––––––––––– */
376 | hr {
377 |   margin-top: 3rem;
378 |   margin-bottom: 3.5rem;
379 |   border-width: 0;
380 |   border-top: 1px solid #E1E1E1; }
381 | 
382 | 
383 | /* Clearing
384 | –––––––––––––––––––––––––––––––––––––––––––––––––– */
385 | 
386 | /* Self Clearing Goodness */
387 | .container:after,
388 | .row:after,
389 | .u-cf {
390 |   content: "";
391 |   display: table;
392 |   clear: both; }
393 | 
394 | 
395 | /* Media Queries
396 | –––––––––––––––––––––––––––––––––––––––––––––––––– */
397 | /*
398 | Note: The best way to structure the use of media queries is to create the queries
399 | near the relevant code. For example, if you wanted to change the styles for buttons
400 | on small devices, paste the mobile query code up in the buttons section and style it
401 | there.
402 | */
403 | 
404 | 
405 | /* Larger than mobile */
406 | @media (min-width: 400px) {}
407 | 
408 | /* Larger than phablet (also point when grid becomes active) */
409 | @media (min-width: 550px) {}
410 | 
411 | /* Larger than tablet */
412 | @media (min-width: 750px) {}
413 | 
414 | /* Larger than desktop */
415 | @media (min-width: 1000px) {}
416 | 
417 | /* Larger than Desktop HD */
418 | @media (min-width: 1200px) {}
419 | 


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