HTTP JSON REST Authenticator module for synapse

This synapse authentication module (password provider) allows you to query identity data in existing webapps, like:

• Forums (phpBB, Discourse, etc.)
• Custom Identity stores (Keycloak, ...)
• CRMs (Wordpress, ...)
• self-hosted clouds (Nextcloud, ownCloud, ...)

It is mainly used with mxisd, the Federated Matrix Identity Server, to provide missing features and offer a fully integrated solution (directory, authentication, search).

Install

Copy in whichever directory python2.x can pick it up as a module.

If you installed synapse using the Matrix debian repos:

git clone https://github.com/maxidor/matrix-synapse-rest-auth.git
cd matrix-synapse-rest-auth
sudo cp rest_auth_provider.py /usr/lib/python2.6/dist-packages/
sudo cp rest_auth_provider.py /usr/lib/python2.7/dist-packages/

Configure

Add or amend the password_providers entry like so:

password_providers:
  - module: "rest_auth_provider.RestAuthProvider"
    config:
      endpoint: "http://change.me.example.com:12345"

Replace the endpoint value with the appropriate value.

Use

1. Install, configure, restart synapse
2. Try to login with a valid username and password for the endpoint configured

Integrate

To use this module with your backend, you will need to implement a single REST endpoint:

Path: /_matrix-internal/identity/v1/check_credentials
Method: POST
Body as JSON UTF-8:

{
  "user": {
    "id": "@matrix.id.of.the.user:example.com",
    "password": "passwordOfTheUser"
  }
}

The following JSON answer will be provided:

{
  "authentication": {
    "success": <boolean>
    "mxid": "@matrix.id.of.the.user:example.com"
    "display_name": "String of the display name to set, optional"
  }
}

Support

For community support, use the Matrix room #matrix-synapse-rest-auth:kamax.io