SAML-test-SP

This is a small, golang-based SAML Service Provider, to be used in End-to-end or other testing. It uses the https://github.com/crewjam/saml Library for the actual SAML Logic.

SAML-test-SP supports IdP-initiated Login flows, however RelayState has to be empty for this to work.

This tool is full configured using environment variables.

URLs

• http://localhost:9009/health: Healthcheck URL, used by the docker healtcheck.
• http://localhost:9009/saml/acs: SAML ACS URL, needed to configure your IdP.
• http://localhost:9009/saml/metadata: SAML Metadata URL, needed to configure your IdP.
• http://localhost:9009/saml/logout: SAML Logout URL.
• http://localhost:9009/: Test URL, redirects to SAML SSO URL.

Configuration

• SP_BIND: Which address and port to bind to. Defaults to 0.0.0.0:9009.
• SP_ROOT_URL: Root URL you're using to access the SP. Defaults to http://localhost:9009.
• SP_ENTITY_ID: SAML EntityID, defaults to saml-test-sp
• SP_METADATA_URL: Optional URL that metadata is fetched from. The metadata is fetched on the first request to /

---

• SP_SSO_URL: If the metadata URL is not configured, use these options to configure it manually.
• SP_SSO_BINDING: Binding Type used for the IdP, defaults to POST. Allowed values: urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST and urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect
• SP_SIGNING_CERT: PEM-encoded Certificate used for signing, with the PEM Header and all newlines removed.

---

Optionally, if you want to use SSL, set these variables

• SP_SSL_CERT: Path to the SSL Certificate the server should use.
• SP_SSL_KEY: Path to the SSL Key the server should use.
• SP_SIGN_REQUESTS: Enable signing of requests.

Note: If you're manually setting SP_ROOT_URL, ensure that you prefix that URL with https.

Running

This service is intended to run in a docker container

# beryju.org is a vanity URL for ghcr.io/beryju
docker pull beryju.org/saml-test-sp
docker run -d --rm \
    -p 9009:9009 \
    -e SP_ENTITY_ID=saml-test-sp \
    -e SP_SSO_URL=http://id.beryju.org/... \
    beryju.org/saml-test-sp

Or if you want to use docker-compose, use this in your docker-compose.yaml.

version: '3.5'

services:
  saml-test-sp:
    image: beryju.org/saml-test-sp
    ports:
      - 9009:9009
    environment:
      SP_METADATA_URL: http://some.site.tld/saml/metadata
    # If you don't want SSL, cut here
      SP_SSL_CERT: /fullchain.pem
      SP_SSL_KEY: /privkey.pem
    volumes:
      - ./fullchain.pem:/fullchain.pem
      - ./privkey.pem:/privkey.pem