https://github.com/dgn/oidc-filter

A WASM plugin for Envoy supporting the Open ID Connect Authorization Flow, extending Istio's JWT functionality
https://github.com/dgn/oidc-filter

envoy istio jwt oidc-filter openid-connect wasm

Last synced: 13 days ago
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A WASM plugin for Envoy supporting the Open ID Connect Authorization Flow, extending Istio's JWT functionality

• Host: GitHub
• URL: https://github.com/dgn/oidc-filter
• Owner: dgn
• License: apache-2.0
• Created: 2020-04-20T18:59:11.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2023-03-06T12:04:05.000Z (over 1 year ago)
• Last Synced: 2024-08-01T19:57:35.468Z (3 months ago)
• Topics: envoy, istio, jwt, oidc-filter, openid-connect, wasm
• Language: Rust
• Homepage:
• Size: 72.3 KB
• Stars: 59
• Watchers: 6
• Forks: 14
• Open Issues: 9
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# oidc-filter

`oidc-filter` is a Wasm plugin for Envoy/Istio that will redirect users to a given authentication URI if they do not present a JWT token.

## Features

- Automatically redirect users with no active session to an OpenID Connect Authorization Server for authorization

- Stores JWT in cookie and transparently writes it to `Authorization` header for every request

## How do I use this thing?

Check out the [examples/](https://github.com/dgn/oidc-filter/tree/master/examples/) directory.

## Limitations

- oidc-filter doesn't verify the JWTs yet (but Istio does that)

- If the token has expired, AJAX calls with methods other than GET will fail on first attempt (but then succeed afterwards)

- Not using state or nonce yet (so susceptible to replay attacks)

## Development

- Running `make` in the root of the repository will build `plugin.wasm`

- Running `make image` will build a container image compatible with OpenShift Service Mesh 2.0+ and Istio 1.12+

- See the [examples/](https://github.com/dgn/oidc-filter/tree/master/examples/) directory for how to test your changes

## TODO

- Add option to replay POST requests after redirects (so that redirected AJAX calls don't fail)

  - Not sure if that's good behaviour