eXo Matrix addon

This addon allows to create a Chat room in Matrix for each eXo space.

Configuration of eXo platform

• exo.matrix.server.url: The URL of the matrix (Synapse) server
• exo.matrix.access_token: The access token to be used for all requests to the server. Check the following section on how to get this token.
• exo.matrix.server.name: The Matrix server name, it may be retrieved from the server domain, but useful in case of development with local Matrix server
• exo.matrix.shared_secret_registration: The shared registration token that will be used for creating new user accounts, it takes the value of the property registration_shared_secret that could be found inside the homeserver.yaml configuration file of the Matrix/Synapse server

Get the access token

Using Element

• Log in to the account you want to get the access token for. Click on the name in the top left corner, then "Settings".
• Click the "Help & About" tab (left side of the dialog).
• Scroll to the bottom and click on part of Access Token.
• Copy your access token and add it to the configuration file

Using bash commands (recommended)

Create a new system user using the following commands : 1- Open a bash session on the Matrix docker container, in our case the container name is matrix-synapse-1

docker exec -it matrix-synapse-1 bash

2- Create a new user with the register_new_matrix_user and when prompt, answer yes to make him an admin

 register_new_matrix_user -u exo -p exo -c /data/homeserver.yaml

3- Exit from the Matrix container

4- Use a web client (like curl or wget) to get an access token

curl -XPOST \                         
  -d '{"type":"m.login.password", "user":"exo", "password":"exo"}' \
  "http://localhost:8008/_matrix/client/r0/login"

5- You will get a response like the following. You need to take the value of the access token and use it to configure eXo platform server

{
  "user_id":"@exo:matrix.exo.tn",
  "access_token":"syt_ZXhv_vmTZZQKEJmGqlndIHUiJ_3SF20T",
  "home_server":"matrix.exo.tn",
  "device_id":"NODUMMFEFO"
} 

Enable Email in user accounts

To enable the registration of new users and add emails to their accounts, it is needed to add the following properties to the homeserver.yaml configuration file.

• enable_3pid_changes to true, to enable updating user email
• email to configure SMTP and email notification Here is a sample configuration

enable_3pid_changes: true
email:
  smtp_host: mail.acme.com
  smtp_port: 25
  force_tls: false
  require_transport_security: false
  enable_tls: false
  notif_from: "Your Friendly %(app)s homeserver <noreply@example.com>"
  app_name: eXo Matrix Chat # Name of the server that will appear in notifications
  enable_notifs: true
  notif_for_new_users: true
  client_base_url: "http://localhost/riot" # URL to the Matrix client (Element)
  validation_token_lifetime: 15m
  invite_client_location: https://app.element.io

  subjects:
    message_from_person_in_room: "[%(app)s] You have a message on %(app)s from %(person)s in the %(room)s room..."
    message_from_person: "[%(app)s] You have a message on %(app)s from %(person)s..."
    messages_from_person: "[%(app)s] You have messages on %(app)s from %(person)s..."
    messages_in_room: "[%(app)s] You have messages on %(app)s in the %(room)s room..."
    messages_in_room_and_others: "[%(app)s] You have messages on %(app)s in the %(room)s room and others..."
    messages_from_person_and_others: "[%(app)s] You have messages on %(app)s from %(person)s and others..."
    invite_from_person_to_room: "[%(app)s] %(person)s has invited you to join the %(room)s room on %(app)s..."
    invite_from_person: "[%(app)s] %(person)s has invited you to chat on %(app)s..."
    password_reset: "[%(server_name)s] Password reset"
    email_validation: "[%(server_name)s] Validate your email"

Link a space to a Matrix room

This is useful when the space is already created. A REST web service was implemented to link an existing space to a room or even to create the room on Matrix server.

Service URL :

Here is the URl to link a Matrix room to an existing space

• http://SERVER_DOMAIN/portal/rest/matrix/linkroom?spaceGroupId=my_new_space&roomId=ROOM_ID&create=true Parameters :
• spaceGroupId : the group ID of the space that we want to link. We can get it from the space URL. it is the words between the :spaces: and the next / character. For example : Required if the space URL is /portal/g/:spaces:support_team/ then the groupId is support_team
• roomId : Optional the technical ID of the room on the Matrix server if it is already created
• create: Ignored if the parameter roomId is not empty. If it has the value to true if we want to create a room for the space defined by the parameter spaceGroupId. Defaults to false