Synapse SAML MXID Mapper

A Synapse plugin module which allows users to choose their username when they first log in and map their SSO-account to a existing one.

This is a fork of https://github.com/matrix-org/matrix-synapse-saml-mozilla.

Installation

This plugin can be installed via pip:

pip install git+https://github.com/chaos-jetzt/matrix-synapse-saml-mapper

Config

Add the following in your Synapse config:

   saml2_config:
     user_mapping_provider:
       module: "matrix_synapse_saml_mapper.SamlMappingProvider"

Also, under the HTTP client listener, configure an additional_resource as per the below:

listeners:
  - port: <port>
    type: http

    resources:
      - names: [client]

    additional_resources:
      "/_matrix/saml2/pick_username":
        module: "matrix_synapse_saml_mapper.pick_username_resource"

Configuration Options

Synapse allows SAML mapping providers to specify custom configuration through the saml2_config.user_mapping_provider.config option.

Currently the following options are supported:

• use_name_id_for_remote_uid: if set to False, we will use the SAML attribute mapped to uid to identify the remote user instead of the NameID from the assertion. True by default.

• bad_domain_file: should point a file containing a list of domains (one per line); users who have an email address on any of these domains will be blocked from registration.

• bad_domain_list: an alternative to bad_domain_file allowing the list of bad domains to be specified inline in the config.

  If both bad_domain_file and bad_domain_list are specified, the two lists are merged.

Linting

Code is linted with the flake8 tool. Run tox -e lint to check for linting errors in the codebase.