O365 Calendar incl. Webex Meetings Web Scheduler

An application to schedule a Webex Meeting and send an O365 calendar invite using a simple web form (watch demo).

Overview

Webex Meetings: In this application, a Webex Meeting is scheduled using a simple web form. If a logged in user has the permission to schedule a Webex Meeting for someone else, he/she can also do that (provided he/she also has editing permissions of that person's O365 calendar).

O365 Calendars: Using Microsoft O365 Outlook, a calendar event is created based on the information provided by the user in the simple web form. The O365 event includes the Webex Meetings information and is sent to the selected participants. If a logged in user has editing permissions of another person's O365 calendar, he/she can also create and send an O365 event on their behalf (provided he/she also has the permissions to schedule a Webex Meeting for that person).

Web Page: The user uses a simple web page to login to Webex Meetings and O365, and to provide the relevant information for the meeting. To schedule a meeting, the user has to provide the meeting host/owner, the title of the meeting, the date, and start and end times. Optionally, the user can provide an agenda, required and optional meeting participants based on groups, and whether the meeting is to be repeated.

Flask: The application is written in Python using the micro web framework Flask. The web server that is part of Flask should not be used in production.

Sequence Diagram:

Contacts

• Jara Osterfeld (josterfe@cisco.com)

Solution Components

• Webex, incl. the REST API and Meetings XML API
• Office 365, incl. the MS Graph API
• Flask
• Python

Prerequisites

• Webex Meetings:

  • Account: A Webex Meetings account with SSO authentication is required. Note the host features enabled with the license of the account when trying to schedule a meeting.
  • SSO Integration: If you have admin access to the Webex Control Hub or a sandbox environment, you can enable Single Sign-On authentication following the steps outlined here.
  • Site: Note your Webex site name. The site name can be found in the Webex URL (https://< site-name >.webex.com/meet) or if you have admin access to the Webex Control Hub, go to Services and select Sites under the Meeting section to see a list of sites configured for your organization.

• Webex Integration: Register a Webex OAuth 2 Integration following the steps outlined here, whereby

  • the Redirect URI must be set to: http://localhost:5000/webexoauth
  • for the Scope, the following values must be selected:
    • spark:all
    • meeting:schedules_write
  • Once registered, note down the Client ID and Client Secret.

• Microsoft 365: If you do not have access to a Microsoft 365 setup, you can sign up for free to their Developer Program, which will provide you with a Microsoft 365 developer instance to play with.

  • O365 Account: An O365 account with Outlook is required.
    • The developer instance can also provide you with sample user accounts for testing. If you have admin access to the Webex Control Hub or a sandbox environment, you can create Webex accounts for them, too, either by adding them manually or using the CSV Template. Using Microsoft Azure as IdP (also provided in the developer instance), it is simple to set up SSO Webex authentication for those accounts, too (see here).
  • Application registration: Register a new application in the Azure portal following these steps and provide the following information in the process:
    1. On the Register an application page, give the application a name, choose "Accounts in any organizational directory (Any Azure AD directory - Multitenant)" as Supported account types, and set the Redirect URI to http://localhost:5000/o365oauth.
    2. Once registered, on the Overview page, note the Client ID and Tenant ID. These will be the values for the 'azure_client_id' and 'azure_client_tenant' variables in the credentials.yml file (see installation instructions).
    3. On the left navigation panel, go to the Certificates & Secrets page, and generate a new client secret under + New client secret. Fill in the information, click Add, and note the Value of the secret (this will be the value for the 'azure_client_secret' variable in the credentials.yml file (see installation instructions)).
    4. On the left navigation panel, go to the Authentication page, and tick the box for Access tokens under the Implicit grant section. Click Save at the top of the page.
    5. On the left navigation panel, go to the API permissions page, and click + Add a permission. Choose Microsoft Graph > Delegated permissions. Select "Calendars.ReadWrite" and "Directory.Read.All", and click Add permissions. Then click Grant admin consent for < your organization > and select Yes.

• O365 Shared Calendar/Webex Meetings Scheduling Permissions: For a user to be able to schedule an O365 event on behalf of another user and make the other user the host of the Webex Meeting, the user needs to have editing rights to the other user's O365 calendar and the other user must have provided the user with scheduling permissions in Webex. You can find information on how to set this up here: Microsoft / Mac.

Installation

1. Clone this repository with git clone <this repo> and navigate to the directory with cd <directory/to/repo>.

2. (Optional) Create a Python virtual environment and activate it (find instructions here).

3. Navigate to the root directory of the repository, and install the requirements with pip install -r requirements.txt.

4. Open the credentials.yml file, and fill in the required information. If unsure, the prerequisites chapter outlines where to find the specific values.

5. Set the following environment variable: set FLASK_APP=main.py.

6. Start the Flask app with flask run -p 5000.

7. In your web browser, navigate to http://localhost:5000/.

License

Provided under Cisco Sample Code License, for details see LICENSE.

Code of Conduct

Our code of conduct is available here.

Contributing

See our contributing guidelines here.