khaganat-web/README.md

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# Khaganat's web site
## Requirements
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* Python 3.6 or newer
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* pipenv
* git
* gettext
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## Code formatting
In order to have a single Python coding style, please use [black](https://github.com/psf/black). However, auto-generated files and parts of external projects should not be reformatted.
```
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$ black $(find . -type f -name "*\.py" -not -path "*/migrations/*" -print)
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```
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## Quick-start (development)
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```
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$ git clone https://git.khaganat.net/Tycho/khaganat-web.git khaganat-web
$ cd khaganat-web
$ vim .env
$ PIPENV_VENV_IN_PROJECT=1 pipenv --three update
$ pipenv run ./manage.py compilemessages
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```
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When editing the `.env` file, you should at least set `KHAGANAT_SECRET_KEY` to a random value, `KHAGANAT_DEBUG` to `"True"` and `KHAGANAT_HOSTNAMES` to `"localhost"`.
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To run this web application, you need a database. The simplest way is to download the one from the test server (`scp cipra.khaganat.net:/var/www/khaganat-web/db.sqlite3 db.sqlite3`). If you really want to start from scratch, you have to run the following commands:
```
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$ pipenv run ./manage.py migrate
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$ pipenv run ./manage.py compilemessages
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$ pipenv run ./manage.py createsuperuser
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```
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Now that everything has been set-up, you may run Django's internal debug server.
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```
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$ pipenv run ./manage.py runserver
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```
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If you created the database from scratch, Django will show an error when visiting the home page. To fix it, you need to go to `/admin/` and create a page with the `default` flag on.
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## Environment variables
You can set the following variables in the `.env` file:
* `KHAGANAT_SECRET_KEY` (required): Django's secret key, keep it secret (tip: generate one using `pipenv run python -c 'from django.core.management.utils import get_random_secret_key; print(get_random_secret_key())'`).
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* `KHAGANAT_DEBUG`: Debug mode, default is false.
* `KHAGANAT_HOSTNAMES`: Allowed hostnames, coma separated.
* `KHAGANAT_LANGUAGE_CODE`: Language code, default is `fr`.
* `KHAGANAT_TIME_ZONE`: Time zone, default is `Europe/Paris`.
* `KHAGANAT_STATIC_URL`: URL for static files, default is `/static/`.
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* `KHAGANAT_STATIC_ROOT`: Absolute path to the directory where static files should be collected. Default is `None`.
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* `KHAGANAT_LOGS_MIN_DAYS`: Numbers of days before logs are hidden, default is 7.
* `KHAGANAT_LOGS_MAX_DAYS`: Number of days before logs are published, default is 0.
* `KHAGANAT_LOGIN_REDIRECT_URL`: URL to redirect after user login. Will be reversed, default is `index`.
* `KHAGANAT_REGISTER_REQUIRE_VALIDATION`: require email validation upon registration, default is true.
* `KHAGANAT_EMAIL_HOST`: The host to use for sending email, default is `localhost`.
* `KHAGANAT_EMAIL_PORT`: Port to use for the SMTP server, default is `25`.
* `KHAGANAT_EMAIL_HOST_USER`: Username to use for the SMTP server, default is empty (no authentication).
* `KHAGANAT_EMAIL_HOST_PASSWORD`: Password to use for the SMTP server, default is empty.
* `KHAGANAT_EMAIL_USE_STARTTLS`: Whether to use STARTTLS to connect to the SMTP server, default is `False`.
* `KHAGANAT_EMAIL_USE_TLS`: Whether to use a TLS connection to the SMTP server, default is `False`.
* `KHAGANAT_EMAIL_SUBJECT_PREFIX`: Subject-line prefix for email, default is empty.
* `KHAGANAT_DEFAULT_FROM_EMAIL`: Default email address to use, default is `no-reply@localhost`.
* `KHAGANAT_FORCE_HTTPS`: If True, enable the use of `KHAGANAT_HTTPS_HEADER_NAME` and `KHAGANAT_HTTPS_HEADER_VALUE` to set the `SECURE_PROXY_SSL_HEADER` configuration option. Default is `False`.
* `KHAGANAT_HTTPS_HEADER_NAME`: Header name for `SECURE_PROXY_SSL_HEADER`, default is `HTTP_X_FORWARDED_PROTO`.
* `KHAGANAT_HTTPS_HEADER_VALUE`: Header value for `SECURE_PROXY_SSL_HEADER`, default is `https`.
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* `KHAGANAT_NSFW_TAGS`: Coma-separated list of words that triggers the content warning in logs, default is `\#nsfw`.
* `KHAGANAT_NSFW_NAME`: Name of the cookie holding the NSFW allowance, default is `nsfw_allowed`.
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* `KHAGANAT_INTERNAL_IPS`: List of IP considered as internal, coma separated, default is `127.0.0.1,::1`.
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* `KHAGANAT_XMPP_BOSH_URL`: URL of the BOSH server used to contact the XMPP server. Default is empty.
* `KHAGANAT_XMPP_JID`: The JID to use for the XMPP session. Default is empty.
* `KHAGANAT_XMPP_ROOMS`: List of rooms to automatically join when connecting. Default is empty.
* `KHAGANAT_XMPP_WEBSOCKET_URL`: URL of the websocket server used to contact the XMPP server. Default is empty.
## Quick update
```
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$ cd khaganat-web
$ git pull
$ pipenv --three update
$ pipenv run ./manage.py migrate
$ pipenv run ./manage.py compilemessages
```
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If you are not in a development environment (runserver), you also have to run `pipenv run ./manage.py collectstatic --clear --noinput` and may have to restart the WSGI server.
## Nginx + uWSGI on ArchLinux
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Before deploying, you may read the following guides:
* [How to use Django with uWSGI](https://docs.djangoproject.com/en/2.0/howto/deployment/wsgi/uwsgi/)
* [Setting up Django and your web server with uWSGI and nginx](https://uwsgi-docs.readthedocs.io/en/latest/tutorials/Django_and_nginx.html)
Install `nginx-mainline`, `uwsgi` and `uwsgi-plugin-python`.
```
# mkdir -p /srv/http/khaganat/static
# cd /srv/http/khaganat
# git clone https://git.khaganat.net/Tycho/khaganat-web.git app
# cd app
# PIPENV_VENV_IN_PROJECT=1 pipenv --three update
```
Create `/etc/uwsgi/khaganat.ini` with the appropriate environment variables:
```
[uwsgi]
chdir = /srv/http/khaganat/app
home = /srv/http/khaganat/app/.venv
module = khaganat.wsgi:application
plugins = python
socket = /srv/http/khaganat/uwsgi.sock
uid = http
gid = http
threads = 2
vacuum = True
env = KHAGANAT_SECRET_KEY="generate a new one"
env = KHAGANAT_DEBUG=False
env = KHAGANAT_STATIC_ROOT=/srv/http/khaganat/static
env = KHAGANAT_HOSTNAMES=khaganat.local
```
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Create `/etc/systemd/system/multi-user.target.wants/uwsgi@.service` :
```
[Unit]
Description=uWSGI service unit
After=syslog.target
[Service]
ExecStart=/usr/bin/uwsgi --ini /etc/uwsgi/%I.ini
ExecReload=/bin/kill -HUP $MAINPID
ExecStop=/bin/kill -INT $MAINPID
Restart=always
Type=notify
StandardError=syslog
NotifyAccess=all
KillSignal=SIGQUIT
[Install]
WantedBy=multi-user.target
```
Configure nginx :
```
server {
listen 80;
listen [::]:80;
server_name "khaganat.local";
include custom/headers.conf;
location /static {
root /srv/http/khaganat/;
}
location / {
uwsgi_pass unix:///srv/http/khaganat/uwsgi.sock;
include uwsgi_params;
}
}
```
Finish the installation:
```
# cd /srv/http/khaganat/app
# pipenv run ./manage.py migrate
# pipenv run ./manage.py collectstatic --clear --noinput
# pipenv run ./manage.py compilemessages
# pipenv run ./manage.py createsuperuser
# chown -R http:http /srv/http/khaganat/
# systemctl enable uwsgi@khaganat.service
# systemctl start uwsgi@khaganat.service
# systemctl enable nginx.service
# systemctl start nginx.service
```
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Do not forget to check the [deployment checklist](https://docs.djangoproject.com/en/2.0/howto/deployment/checklist/).