o365toical

Grabs your Office 365 calendar and provides an iCal endpoint to it.

Uses the Microsoft Graph API to live grab the following calendar week and return an iCal formatted output. The following 3 weeks are cached daily as to provide a quick API response. On my tests, the Microsoft Graph API is taking an average of 2-3 seconds per calendar week.

Requirements

Register an App within your Azure Portal
- Must have the Calendars.Read, User.Read and offline_access permissions
- You should be able to extract client_id, secret and tenant
- Don't forget to add a valid Redirect URL
Docker
A folder on where to store attachments
A PostgreSQL installation (tested with PostgreSQL 14.1)

Build & configure

Build and copy sample files

$ docker build -t account/o365tocal .
$ mv sample_config.json config.json

Edit configuration

client_id: Client ID retrieved from the Azure Portal
secret: Secret retrieved from the Azure Portal
tenant: Tenant retrieved from the Azure Portal
redirect_url: The URL to where to redirect after successful authentication
attachments_dir: Directory on where to store the attachments
psql
    user: User with which to connect to the DB
    password: Password corresponding to the user
    host: Host of the database
    schema: Schema on where to store all the information

Run

$ docker run --name o365 -p 5000:5000 --restart unless-stopped -v /confs/o365/config.json:/app/config.json -v /data/o365:/files crazyfacka/o365toical

O365 to iCal build from 2021-06-23_2206

   ____    __
  / __/___/ /  ___
 / _// __/ _ \/ _ \
/___/\__/_//_/\___/ v4.2.2
High performance, minimalist Go web framework
https://echo.labstack.com
____________________________________O/_______
                                    O\
⇨ http server started on [::]:5000