DISCONTINUED: Along with my mail server I switched to a hoster as I had not enough time to keep everything running smoothly and secure. (Switched to mailbox.org)

.

Tested for Ubuntu 18.04

Requires an already setup Apache2 + LetsEncrypt

• Install

  • Data Folder

      mkdir /var/radicale
      chown www-data /var/radicale

  • Radicale & Reqs

      apt-get install python3-pip
      python3 -m pip install --upgrade radicale
      python3 -m pip install --upgrade git+https://github.com/Unrud/RadicaleIMAP
      python3 -m pip install --upgrade git+https://github.com/Unrud/RadicaleInfCloud

  • Apache2 Requirements (for WSGI)

      apt-get install libapache2-mod-wsgi-py3
      a2enmod wsgi

• Config

  • /var/radicale/config

      [server]
      hosts = 0.0.0.0:5232
    
      [auth]
      type = radicale_imap
      imap_host = mail.example.net
      imap_secure = True
    
      [storage]
      filesystem_folder = /var/radicale/collections
    
      [logging]
      config = /var/radicale/logging
      debug = True
    
      [web]
      type = radicale_infcloud

  • /var/radicale/logging

      [loggers]
      keys = root
    
      [handlers]
      keys = file
    
      [formatters]
      keys = full
    
      [logger_root]
      # DEBUG,INFO, WARNING
      # level = WARNING
      handlers = file
    
      [handler_file]
      args = ('/var/radicale/logs/radicale.log','a',1000000,2)
      class = handlers.RotatingFileHandler
      formatter = full
      level = INFO
    
      [formatter_full]
      format = %(asctime)s - %(levelname)s: %(message)s

• WSGI setup

  • /var/radicale/radicale.wsgi

      import os
      from radicale import Application, config, log
      configuration = config.load(["/var/radicale/config"])
      filename = os.path.expanduser(configuration.get("logging", "config"))
      debug = configuration.getboolean("logging", "debug")
      logger = log.start("radicale", filename, debug)
      application = Application(configuration, logger)

  • apache2.conf

      <VirtualHost *:443>
          ServerName dav.example.net
          DocumentRoot /var/radicale/
    
          WSGIDaemonProcess radicale user=www-data group=www-data threads=1
          WSGIScriptAlias / /var/radicale/radicale.wsgi
          WSGIPassAuthorization On
    
          <Directory /var/radicale/>
                  WSGIProcessGroup radicale
                  WSGIApplicationGroup %{GLOBAL}
                  AllowOverride None
                  SSLRequireSSL
    
                  Require all granted
          </Directory>
    
          SSLEngine on
          SSLCertificateFile /etc/letsencrypt/live/dav.example.net/cert.pem
          SSLCertificateKeyFile /etc/letsencrypt/live/dav.example.net/privkey.pem
          SSLCertificateChainFile /etc/letsencrypt/live/dav.example.net/chain.pem
      </VirtualHost>

• Addon: Sync external sources into an own CalDav Calender: /var/radicale/sync-external.sh

    #!/bin/bash
  
    cd collections/collection-root/user@domain.tld/cal-holidays/
  
    # Ferien
    wget -q http://i.cal.to/ical/78/rheinland-pfalz/ferien/6d6f0645.5fe5a2e8-b813d8cb.ics -O icalto-ferien.ics
    rm -f icalto-ferien-item*
    csplit -sf icalto-ferien-item -b %03d.ics icalto-ferien.ics /BEGIN:VEVENT/ {*}
    rm icalto-ferien.ics
  
    # Feiertage
    wget -q http://i.cal.to/ical/62/rheinland-pfalz/feiertage/6d6f0645.5fe5a2e8-7da4ef30.ics -O icalto-feiertage.ics
    rm -f icalto-feiertage-item*
    csplit -sf icalto-feiertage-item -b %03d.ics icalto-feiertage.ics /BEGIN:VEVENT/ {*}
    rm icalto-feiertage.ics
  
    # Remove "first" (empty)
    rm -f icalto-*-item000.ics
  
    # Remove Stuff after last event
    find . -name 'icalto-*.ics' -exec sed -i '/END:VEVENT/q' {} \;
  
    # Remove undesired fields
    sed -i -r "/^(URL|DESCRIPTION|SEQUENCE|STATUS|X-MICROSOFT-CDO-ALLDAYEVENT):/d" icalto-*.ics
  
    # remove rest of description (starting with blank)
    sed -i -r "/^ /d" icalto-*.ics
  
    sed -i "s/ - presented by calovo\.de//" icalto-*.ics
  
    # Prepend and Append VCALENDAR
    sed -i "s/BEGIN:VEVENT/BEGIN:VCALENDAR\nBEGIN:VEVENT/" icalto-*.ics
    sed -i "s/END:VEVENT/END:VEVENT\nEND:VCALENDAR/" icalto-*.ics
  
    echo "Done."

• Addon: Export calender to single ics (possibly w/o auth, or for unsupported clients) /var/radicale/config

    [storage]
    hook = curl --user 'user:password' --silent 'http://localhost:5232/user/calendar/' --output '/path/to/Sync/calendar.ics' &

  TODO: Have to look into some locking issues with WSGI and Radicale and Hooks

References

• https://radicale.org
• https://github.com/Kozea/Radicale/issues/698
• https://return42.github.io/handsOn/radicale/radicale_server.html
• InfCloud (Web Client for Radicale)
  • https://www.inf-it.com/open-source/clients/