Component that adds support for Exchange Calendars in Home Assistant, based on the exchangelib Python library.
I wrote this Exchange Calendar integration for Home Assistant already in 2019. I published the source code here because I noticed there are a few people asking for this feature from time to time. If something can be improved and benefit others in a reasonable amount of time, feel free to open a PR or an issue, but please be aware that I aim to spend as little time as possible on my Home Assistant installation, and especially this project.
I'll keep it running until I eventually switch to a different email provider. I don't think it's worth making it upstream (yet) but if you have time and want to make the effort, don't hesitate to copy or take inspiration from this repository. I had a good experience when contributing to the Home Assistant project a couple of years ago.
The component adds a platform named exchange_calendar. It allows you to connect to an Exchange
server and adds a binary sensor that is activated when there is an ongoing event. The configuration
allows you to create multiple sensors that each match certain events based on their subject,
location or text body.
The component depends on the exchangelib Python library. You need to install it on your system at least in version 3.2.0.
If you're using virtualenv and Home Assistant is installed in /srv/homeassistant, the
installation of the library could look like this:
# Go into the Home Assistant's installation directory
cd /srv/homeassistant
# Enter the project's virtual environment
source bin/activate
# Install the exchangelib library
pip3 install exchangelib
# or eventually upgrade it if it's already present but in an older version.
pip3 install exchangelib --upgrade
# Please be advised that this could interfere with other components if they
# also depend on exchangelib.
The developers documentation explains very well how to create a custom component. Here is a wrapup.
Create a folder named custom_components where you configuration is stored. For me, this is in
.homeassistant. Put the exchange-calendar folder into custom_components.
The content of your configuraton directory could look like this:
<config-dir>/configuration.yaml
<config-dir>/.uuid
<config-dir>/secrets.yaml
<config-dir>/.storage/*
<config-dir>/home-assistant.log
<config-dir>/.HA_VERSION
<config-dir>/custom_components/exchange_calendar/__init__.py
<config-dir>/custom_components/exchange_calendar/calendar.py
The configuration is pretty much the same as for Home Assistant's caldav component.
The minimal setup requires you to add the following section to your
configuration.yaml file:
calendar:
- platform: exchange_calendar
server: "exchange.provider.com"
username: [email protected]
password: !secret exchange_password
This example generates a binary sensor for the calendar you have in your account. I haven't tested what happens when you have more than one. This binary sensor will be on when there is an ongoing event and off when there is none. Events that last a whole day are ignored.
If you want to have such events taken into account, or if you wish to have sensors matching specific events, continue reading.
You have the possibility to create multiple binary sensors for events that match certain conditions. Those additional binary sensors don't ignore events that last a whole day.
calendar:
- platform: exchange_calendar
server: "exchange.provider.com"
username: [email protected]
password: !secret exchange_password
calendars:
- name: 'Agenda HomeOffice'
search: 'HomeOffice'
- name: 'Agenda FlatWarmup'
search: 'WarmupFlat'
- name: 'Agenda Guest'
search: 'Guest'
This example creates three binary sensors named Agenda HomeOffice, Agenda FlatWarmup and
Agenda Guest. Those sensors will be on only if there is an ongoing event which's Subject,
Location or Text fields match the regular expression specified in search.