Cleanups to the OpenID Connect integration (#7628)

docs, default configs, comments. Nothing very significant.

1 files changed, 0 insertions, 175 deletions

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-# How to test OpenID Connect
-
-Any OpenID Connect Provider (OP) should work with Synapse, as long as it supports the authorization code flow.
-There are a few options for that:
-
- - start a local OP. Synapse has been tested with [Hydra][hydra] and [Dex][dex-idp].
-   Note that for an OP to work, it should be served under a secure (HTTPS) origin.
-   A certificate signed with a self-signed, locally trusted CA should work. In that case, start Synapse with a `SSL_CERT_FILE` environment variable set to the path of the CA.
- - use a publicly available OP. Synapse has been tested with [Google][google-idp].
- - setup a SaaS OP, like [Auth0][auth0] and [Okta][okta]. Auth0 has a free tier which has been tested with Synapse.
-
-[google-idp]: https://developers.google.com/identity/protocols/OpenIDConnect#authenticatingtheuser
-[auth0]: https://auth0.com/
-[okta]: https://www.okta.com/
-[dex-idp]: https://github.com/dexidp/dex
-[hydra]: https://www.ory.sh/docs/hydra/
-
-
-## Sample configs
-
-Here are a few configs for providers that should work with Synapse.
-
-### [Dex][dex-idp]
-
-[Dex][dex-idp] is a simple, open-source, certified OpenID Connect Provider.
-Although it is designed to help building a full-blown provider, with some external database, it can be configured with static passwords in a config file.
-
-Follow the [Getting Started guide](https://github.com/dexidp/dex/blob/master/Documentation/getting-started.md) to install Dex.
-
-Edit `examples/config-dev.yaml` config file from the Dex repo to add a client:
-
-```yaml
-staticClients:
-- id: synapse
-  secret: secret
-  redirectURIs:
-  - '[synapse base url]/_synapse/oidc/callback'
-  name: 'Synapse'
-```
-
-Run with `dex serve examples/config-dex.yaml`
-
-Synapse config:
-
-```yaml
-oidc_config:
-   enabled: true
-   skip_verification: true # This is needed as Dex is served on an insecure endpoint
-   issuer: "http://127.0.0.1:5556/dex"
-   discover: true
-   client_id: "synapse"
-   client_secret: "secret"
-   scopes:
-     - openid
-     - profile
-   user_mapping_provider:
-     config:
-       localpart_template: '{{ user.name }}'
-       display_name_template: '{{ user.name|capitalize }}'
-```
-
-### [Auth0][auth0]
-
-1. Create a regular web application for Synapse
-2. Set the Allowed Callback URLs to `[synapse base url]/_synapse/oidc/callback`
-3. Add a rule to add the `preferred_username` claim.
-   <details>
-    <summary>Code sample</summary>
-
-    ```js
-    function addPersistenceAttribute(user, context, callback) {
-      user.user_metadata = user.user_metadata || {};
-      user.user_metadata.preferred_username = user.user_metadata.preferred_username || user.user_id;
-      context.idToken.preferred_username = user.user_metadata.preferred_username;
-
-      auth0.users.updateUserMetadata(user.user_id, user.user_metadata)
-        .then(function(){
-            callback(null, user, context);
-        })
-        .catch(function(err){
-            callback(err);
-        });
-    }
-    ```
-
-  </details>
-
-
-```yaml
-oidc_config:
-   enabled: true
-   issuer: "https://your-tier.eu.auth0.com/" # TO BE FILLED
-   discover: true
-   client_id: "your-client-id" # TO BE FILLED
-   client_secret: "your-client-secret" # TO BE FILLED
-   scopes:
-     - openid
-     - profile
-   user_mapping_provider:
-     config:
-       localpart_template: '{{ user.preferred_username }}'
-       display_name_template: '{{ user.name }}'
-```
-
-### GitHub
-
-GitHub is a bit special as it is not an OpenID Connect compliant provider, but just a regular OAuth2 provider.
-The `/user` API endpoint can be used to retrieve informations from the user.
-As the OIDC login mechanism needs an attribute to uniquely identify users and that endpoint does not return a `sub` property, an alternative `subject_claim` has to be set.
-
-1. Create a new OAuth application: https://github.com/settings/applications/new
-2. Set the callback URL to `[synapse base url]/_synapse/oidc/callback`
-
-```yaml
-oidc_config:
-   enabled: true
-   issuer: "https://github.com/"
-   discover: false
-   client_id: "your-client-id" # TO BE FILLED
-   client_secret: "your-client-secret" # TO BE FILLED
-   authorization_endpoint: "https://github.com/login/oauth/authorize"
-   token_endpoint: "https://github.com/login/oauth/access_token"
-   userinfo_endpoint: "https://api.github.com/user"
-   scopes:
-     - read:user
-   user_mapping_provider:
-     config:
-       subject_claim: 'id'
-       localpart_template: '{{ user.login }}'
-       display_name_template: '{{ user.name }}'
-```
-
-### Google
-
-1. Setup a project in the Google API Console
-2. Obtain the OAuth 2.0 credentials (see <https://developers.google.com/identity/protocols/oauth2/openid-connect>)
-3. Add this Authorized redirect URI: `[synapse base url]/_synapse/oidc/callback`
-
-```yaml
-oidc_config:
-   enabled: true
-   issuer: "https://accounts.google.com/"
-   discover: true
-   client_id: "your-client-id" # TO BE FILLED
-   client_secret: "your-client-secret" # TO BE FILLED
-   scopes:
-     - openid
-     - profile
-   user_mapping_provider:
-     config:
-       localpart_template: '{{ user.given_name|lower }}'
-       display_name_template: '{{ user.name }}'
-```
-
-### Twitch
-
-1. Setup a developer account on [Twitch](https://dev.twitch.tv/)
-2. Obtain the OAuth 2.0 credentials by [creating an app](https://dev.twitch.tv/console/apps/)
-3. Add this OAuth Redirect URL: `[synapse base url]/_synapse/oidc/callback`
-
-```yaml
-oidc_config:
-   enabled: true
-   issuer: "https://id.twitch.tv/oauth2/"
-   discover: true
-   client_id: "your-client-id" # TO BE FILLED
-   client_secret: "your-client-secret" # TO BE FILLED
-   client_auth_method: "client_secret_post"
-   scopes:
-     - openid
-   user_mapping_provider:
-     config:
-       localpart_template: '{{ user.preferred_username }}'
-       display_name_template: '{{ user.name }}'
-```