Davis

A simple, fully translatable admin interface and frontend for sabre/dav based on Symfony 5 and Bootstrap 4, initially inspired by Baïkal.

Provides user edition, calendar creation and sharing, and address book creation. The interface is simple and straightforward, responsive, and provides a light and a dark mode.

Easily containerisable (Dockerfile and sample docker-compose configuration file provided).

Supports Basic authentication, as well as IMAP and LDAP (via external providers).

Created and maintained (with the help of the community) by @tchapi.

Requirements

• PHP > 7.3.0 (with pdo_mysql [or pdo_pgsql, pdo_sqlite], gd and intl extensions), compatible up to PHP 8.2
• A compatible database layer, such as MySQL or MariaDB (recommended), PostgreSQL (not extensively tested yet) or SQLite (not extensively tested yet)
• Composer > 2 (The last release compatible with Composer 1 is v1.6.2)
• The imap and ldap PHP extensions if you want to use either authentication methods (these are not enabled / compiled by default except in the Docker image)

Installation

0. Clone this repository

1. Retrieve the dependencies:

composer install

2. At least put the correct credentials to your database (driver and url) in your .env.local file so you can easily create the necessary tables.

3. Run the migrations to create all the necessary tables:

bin/console doctrine:migrations:migrate

Davis can also be used with a pre-existing MySQL database (for instance, one previously managed by Baïkal). See the paragraph "Migrating from Baikal" for more info.

The tables are not exactly equivalent to those of Baïkal, and allow for a bit more room in columns for instance (among other things)

Configuration

Create your own .env.local file to change the necessary variables, if you plan on using symfony/dotenv.

If your installation is behind a web server like Apache or Nginx, you can setup the env vars directly in your Apache or Nginx configuration (see below). Skip this part in this case.

a. The database driver and url (you should already have it configured since you created the database previously)

DATABASE_DRIVER=mysql # or postgresql, or sqlite
DATABASE_URL=mysql://db_user:db_pass@host:3306/db_name?serverVersion=mariadb-10.6.10&charset=utf8mb4

b. The admin password for the backend

ADMIN_LOGIN=admin
ADMIN_PASSWORD=test

c. The auth Realm and method for HTTP auth

AUTH_REALM=SabreDAV
AUTH_METHOD=Basic # can be "Basic", "IMAP" or "LDAP"

See the following paragraph for more information if you choose either IMAP or LDAP.

d. The global flags to enable CalDAV, CardDAV and WebDAV

CALDAV_ENABLED=true
CARDDAV_ENABLED=true
WEBDAV_ENABLED=false

e. The email address that your invites are going to be sent from

INVITE_FROM_ADDRESS=no-reply@example.org

f. The paths for the WebDAV installation

I recommend that you use absolute directories so you know exactly where your files reside.

WEBDAV_TMP_DIR='/tmp'
WEBDAV_PUBLIC_DIR='/webdav'

Specific environment variables for IMAP and LDAP authentication methods

In case you use the IMAP auth type, you must specify the auth url (the "mailbox" url) in IMAP_AUTH_URL. See https://www.php.net/manual/en/function.imap-open.php for more details.

You should also explicitely define whether you want new authenticated to be created upon login:

IMAP_AUTH_URL="{imap.gmail.com:993/imap/ssl/novalidate-cert}"
IMAP_AUTH_USER_AUTOCREATE=true # false by default

Same goes for LDAP, where you must specify the LDAP server url, the DN pattern, the Mail attribute, as well as whether you want new authenticated to be created upon login (like for IMAP):

LDAP_AUTH_URL="ldap://127.0.0.1"
LDAP_DN_PATTERN="mail=%u"
LDAP_MAIL_ATTRIBUTE="mail"
LDAP_AUTH_USER_AUTOCREATE=true # false by default

Ex: for Zimbra LDAP, you might want to use the zimbraMailDeliveryAddress attribute to retrieve the principal user email:

LDAP_MAIL_ATTRIBUTE="zimbraMailDeliveryAddress"

Migrating from Baïkal?

If you're migrating from Baïkal, then you will likely want to do the following :

1. Get a backup of your data (without the CREATE statements, but with complete INSERT statements):

mysqldump -u root -p --no-create-info --complete-insert baikal > baikal_to_davis.sql # baikal is the actual name of your database

2. Create a new database for Davis (let's name it davis) and create the base schema:

bin/console doctrine:migrations:migrate 'DoctrineMigrations\Version20191030113307' --no-interaction

3. Reimport the data back:

mysql -uroot -p davis < baikal_to_davis.sql

4. Run the necessary remaining migrations:

bin/console doctrine:migrations:migrate

Access / Webserver

A simple status page is available on the root / of the server.

The administration interface is available at /dashboard. You need to login to use it (See ADMIN_LOGIN and ADMIN_PASSWORD env vars).

The main endpoint for CalDAV, WebDAV or CardDAV is at /dav.

Note: For shared hosting, the symfony/apache-pack is included and provides a standard .htaccess file in the public directory so redirections should work out of the box.

Example Caddy 2 configuration

dav.domain.tld {
    # General settings
    encode zstd gzip
    header {
        -Server
        -X-Powered-By

        # enable HSTS
        Strict-Transport-Security max-age=31536000;

        # disable clients from sniffing the media type
        X-Content-Type-Options nosniff

        # keep referrer data off of HTTP connections
        Referrer-Policy no-referrer-when-downgrade
    }

    root * /var/www/davis/public
    php_fastcgi 127.0.0.1:8000
    file_server
}

Example Apache 2.4 configuration

<VirtualHost *:80>
    ServerName dav.domain.tld

    DocumentRoot /var/www/davis/public
    DirectoryIndex /index.php

    <Directory /var/www/davis/public>
        AllowOverride None
        Order Allow,Deny
        Allow from All
        FallbackResource /index.php
    </Directory>

    # Apache > 2.4.25, else remove this part
    <Directory /var/www/davis/public/bundles>
        FallbackResource disabled
    </Directory>

    # Env vars (if you did not use .env.local)
    SetEnv APP_ENV prod
    SetEnv APP_SECRET <app-secret-id>
    SetEnv DATABASE_DRIVER "mysql"
    SetEnv DATABASE_URL "mysql://db_user:db_pass@host:3306/db_name?serverVersion=mariadb-10.6.10&charset=utf8mb4"
    # ... etc
</VirtualHost>

Example Nginx configuration

server {
    server_name dav.domain.tld;
    root /var/www/davis/public;

    location / {
        try_files $uri /index.php$is_args$args;
    }

    location /bundles {
        try_files $uri =404;
    }

    location ~ ^/index\.php(/|$) {
        fastcgi_pass unix:/var/run/php/php7.2-fpm.sock; # Change for your PHP version
        fastcgi_split_path_info ^(.+\.php)(/.*)$;
        include fastcgi_params;

        # Env vars (if you did not use .env.local)
        fastcgi_param APP_ENV prod;
        fastcgi_param APP_SECRET <app-secret-id>;
        fastcgi_param DATABASE_DRIVER "mysql"
        fastcgi_param DATABASE_URL "mysql://db_user:db_pass@host:3306/db_name?serverVersion=mariadb-10.6.10&charset=utf8mb4";
        # ... etc ...

        fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
        fastcgi_param DOCUMENT_ROOT $realpath_root;
        internal;
    }

    location ~ \.php$ {
        return 404;
    }
}

More examples and information here.

Well-known redirections for CalDAV and CardDAV

Web-based protocols like CalDAV and CardDAV can be found using a discovery service. Some clients require that you implement a path prefix to point to the correct location for your service. See here for more info.

If you use Apache as your webserver, you can enable the redirections with:

RewriteEngine On
RewriteRule ^\.well-known/carddav /dav/ [R=301,L]
RewriteRule ^\.well-known/caldav /dav/ [R=301,L]

Make sure that mod_rewrite is enabled on your installation beforehand.

If you use Nginx, you can add this to your configuration:

location / {
   rewrite ^/.well-known/carddav /dav/ redirect;
   rewrite ^/.well-known/caldav /dav/ redirect;
}

Dockerized installation

A Dockerfile is available for you to compile the image.

To build the checked out version, just run:

docker build --pull --file docker/Dockerfile --tag davis:latest .

This will build a davis:latest image that you can directly use. Do not forget to pass sensible environment variables to the container since the dist .env file will take precedence if no .env.local or environment variable is found.

You can use --platform to specify the platform to build for. Currently, arm64 (ARMv8) and amd64 (x86) are supported.

Docker images

For each release, a Docker image is built and published in the Github package repository.

Release images

Each release builds and tags an image. Example:

docker pull ghcr.io/tchapi/davis:v3.1.0

Edge image

The edge image is built from the tip of the master branch:

docker pull ghcr.io/tchapi/davis:edge

Warning

The edge image must not be considered stable. Use only release images for production.

Full stack

A docker-compose.yml file is also included (in the docker folder) as a minimal example setup with a MariaDB database and Nginx as a reverse proxy.

You can start the containers with :

cd docker && docker-compose up -d

Note

The recipe above uses MariaDB but you can also use PostgreSQL with:

cd docker && docker-compose -f docker-compose-postgresql.yml up -d

Or SQLite with:

cd docker && docker-compose -f docker-compose-sqlite.yml up -d

⚠ Do not forget to run all the migrations the first time you run the container :

docker exec -it davis sh -c "APP_ENV=prod bin/console doctrine:migrations:migrate --no-interaction"

Warning For SQLite, you must also make sure that the folder the database will reside in AND the database file in itself have the right permissions! You can do for instance: chown -R www-data: /data if /data is the folder your SQLite database will be in, just after you have run the migrations

Updating from a previous version

If you update the code, you need to make sure the database structure is in sync.

Before v3.0.0, you need to force the update:

docker exec -it davis sh -c "APP_ENV=prod bin/console doctrine:schema:update --force --no-interaction"

For v3.0.0 and after, you can just migrate again (provided you correctly followed the migration notes in the v3.0.0 release):

docker exec -it davis sh -c "APP_ENV=prod bin/console doctrine:migrations:migrate --no-interaction"

Then, head up to http://<YOUR_DOCKER_IP>:9000 to see the status display :

Note that there is no user and no principals created by default.

Development

You can spin off a local PHP webserver with:

php -S localhost:8000 -t public

If you change or add translations, you need to update the messages XLIFF file with:

bin/console translation:extract en --force --domain=messages+intl-icu

Testing

You can use:

./bin/phpunit

Code linting

We use PHP-CS-Fixer with:

PHP_CS_FIXER_IGNORE_ENV=True ./vendor/bin/php-cs-fixer fix

Libraries used

• Symfony 5 (Licence : MIT)
• Sabre-io/dav (Licence : BSD-3-Clause)
• Bootstrap 4 (Licence : MIT)

This project does not use any pipeline for the assets since the frontend side is relatively simple, and based on Bootstrap.

Licence

This project is release under the MIT licence. See the LICENCE file