authelia/docs/content/integration/openid-connect/synapse/index.md

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---
title: "Synapse"
description: "Integrating Synapse with the Authelia OpenID Connect 1.0 Provider."
summary: ""
date: 2022-06-15T17:51:47+10:00
draft: false
images: []
weight: 620
toc: true
support:
level: community
versions: true
integration: true
seo:
title: "" # custom title (optional)
description: "" # custom description (recommended)
canonical: "" # custom canonical URL (optional)
noindex: false # false (default) or true
---
## Tested Versions
* [Authelia]
* [v4.38.0](https://github.com/authelia/authelia/releases/tag/v4.38.0)
* [Synapse]
* [v1.60.0](https://github.com/matrix-org/synapse/releases/tag/v1.60.0)
{{% oidc-common %}}
### Assumptions
This example makes the following assumptions:
* __Application Root URL:__ `https://matrix.{{< sitevar name="domain" nojs="example.com" >}}/`
* __Authelia Root URL:__ `https://{{< sitevar name="subdomain-authelia" nojs="auth" >}}.{{< sitevar name="domain" nojs="example.com" >}}/`
* __Client ID:__ `synapse`
* __Client Secret:__ `insecure_secret`
Some of the values presented in this guide can automatically be replaced with documentation variables.
{{< sitevar-preferences >}}
## Configuration
### Authelia
The following YAML configuration is an example __Authelia__ [client configuration] for use with [Synapse] which will
operate with the application example:
```yaml {title="configuration.yml"}
identity_providers:
oidc:
## The other portions of the mandatory OpenID Connect 1.0 configuration go here.
## See: https://www.authelia.com/c/oidc
clients:
- client_id: 'synapse'
client_name: 'Synapse'
client_secret: '$pbkdf2-sha512$310000$c8p78n7pUMln0jzvd4aK4Q$JNRBzwAo0ek5qKn50cFzzvE9RXV88h1wJn5KGiHrD0YKtZaR/nCb2CJPOsKaPK0hjf.9yHxzQGZziziccp6Yng' # The digest of 'insecure_secret'.
public: false
authorization_policy: 'two_factor'
redirect_uris:
- 'https://synapse.{{< sitevar name="domain" nojs="example.com" >}}/_synapse/client/oidc/callback'
scopes:
- 'openid'
- 'profile'
- 'email'
userinfo_signed_response_alg: 'none'
```
### Application
To configure [Synapse] to utilize Authelia as an [OpenID Connect 1.0] Provider:
1. Edit your [Synapse] `homeserver.yaml` configuration file and add configure the following:
```yaml {title="homeserver.yaml"}
oidc_providers:
- idp_id: authelia
idp_name: "Authelia"
idp_icon: "mxc://authelia.com/cKlrTPsGvlpKxAYeHWJsdVHI"
discover: true
issuer: "https://{{< sitevar name="subdomain-authelia" nojs="auth" >}}.{{< sitevar name="domain" nojs="example.com" >}}"
client_id: "synapse"
client_secret: "insecure_secret"
scopes: ["openid", "profile", "email"]
allow_existing_users: true
user_mapping_provider:
config:
subject_claim: "sub"
localpart_template: "{{ user.preferred_username }}"
display_name_template: "{{ user.name }}"
email_template: "{{ user.email }}"
```
## See Also
* [Synapse OpenID Connect Authentication Documentation](https://matrix-org.github.io/synapse/latest/openid.html)
[Authelia]: https://www.authelia.com
[Synapse]: https://github.com/matrix-org/synapse
[OpenID Connect 1.0]: ../../openid-connect/introduction.md
[client configuration]: ../../../configuration/identity-providers/openid-connect/clients.md