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Authentication (SSO)

Generic OIDC

Prisme.ai is compatible with any OIDC provider like Google.

1. Register an app
First access your OIDC IdP back-office in order to register a Web OAuth2 client/app.
Configure the following authorized redirect URI :

https://API_URL/v2/login/callback

Once created, note the following client informations :

  • Client ID
  • Client Secret
  • Auth URL : the authorization_endpoint triggering authentication flow
  • Token URL : the token_endpoint to exchange authorization codes with an authentication token
  • Certificate URL : the jwks_uri endpoint returning IdP public certificates

jwks_uri might not be showed with client details as it is generally global to the IdP (or at least to the customer tenant, like Auth0).
This URL can either return a standard JWKS or an object mapping kids to PEM certificate strings like Google.

Algorithm

For the moment, the only supported algorithm is RS256.

2. Create & configure a authProviders.config.yml file 

providers:
  <ProviderName>:
    type: oidc
    config:
      client_id: "your client id"
      client_secret: "your client secret"
      authorization_endpoint: "idp authorization_endpoint"
      token_endpoint: "idp token_endpoint"
      jwks_uri: "idp public certificates endpoint"
      scopes: "openid email profile"

Although the choice is yours, name your ProviderName with care, as this name will be passed to front-end services & injected within user authData (along with user claims), making it potentially difficult to change afterwards.

You must replace <ProviderName> by the actual name of your provider.

An optional config.scopes field allow customizing requested scopes (& retrieved used claims by extension), which defaults to openid email and must at least include openid and email.
You have to add the profile scope if you wish to retrieve informations such as the first name and last name of your users.

You can now proceed with generic auth providers configuration to finish OIDC integration.

Generic SAML

Prisme.ai also provides SAML integration with the following limitations :

  • ACS endpoint currently only supports HTTP-POST binding to receive final authentication assertion
  • No support for IdP initiated login. An IdP initiated login would simply be redirected to Prisme.ai sign in page, letting the user initiate the SAML authentication himself.

1. Register the SAML Service Provider
First, Prisme.ai Service Provider must be registered on IdP side :

  • ACS Endpoint : https://API_URL/v2/login/callback
  • SP EntityId : Defaults to https://studio.prisme.ai/sp can be configured with config.audience parameter in authConfig (see below)
  • Name ID format : unspecified, however all formats are supported

The IdP metadata .xml file should be exported from there, notably including the signing certificate.
If this .xml file is not available, parameters can still be individually configured.

2. Create & configure a authProviders.config.yml file 

providers:
  <ProviderName>:
    type: saml
    config:
      idp_metadata_filepath: "/path/towards/idp-saml-metadata.xml"
      issuer: "Service Provider entity id"

The config.issuer is specific to the platform itself and must match the service provider EntityID expected by the IdP.

If no xml file is available, the following config fields should be configured instead : config.entryPoint and config.idpCert.

See https://github.com/node-saml/node-saml for full SAML configuration documentation.

You can now proceed with generic auth providers configuration to finish SAML integration.

Generic auth providers

When connecting an external OIDC or SAML IdP, the same steps apply after configuring the authProviders.config.yml

1. Common auth configuration

All providers defined in authProviders.config.yml support the attributesMapping option : 

providers:
  <ProviderName>:
  okta-saml:
    type: '...'
    attributesMapping:
      firstName: 'someCompanyProvidedFirstNameField'
      lastName: 'lastNameField'
      email: 'emailField'
This option lets you map native fields (keys on the left) from provided auth data (keys on the right).
Here, we fill-in Prismeai user email from authData.emailField, lastName from authData.lastNameField ...
You can inspect what auth data is available by looking at gateway.login.succeeded events, or by reading {{user}} variable from a test automation.

firstName, lastName, email are the 3 only supported native fields.

2. Mount this configuration file to prismeai-api-gateaway
Mount this file as a volume inside prismeai-api-gateway container at /www/services/api-gateway/authProviders.config.yml
You can customize this file location with AUTH_PROVIDERS_CONFIG environment variable

3. Enable the provider within console & pages
In order to display & customize sign in buttons connecting to our freshly configured auth provider, add the following environment variable to prismeai-console and prismeai-pages microservices : 

ENABLED_AUTH_PROVIDERS='[{"name": "local"}, {"name": "google", "label": "Google", "icon": "https://cdn.iconscout.com/icon/free/png-256/free-google-1772223-1507807.png"}]'

Configure name, label and icon with the desired provider name, its display label & icon url.
name must match with the ProviderName configured in authProviders.config.yml.

If the local provider is omitted, the standard user / password sign in form will not appear.
If you do not want the same IdP to be available between Prismai studio & workspaces pages, these 2 variables can also be differently configured between prismeai-console and prismeai-pages.

Authenticating from workspaces pages

Bear in mind that each workspace register itself as an OIDC client of your providers in order to allow users to connect from your workspaces pages. These registrations happen on creation and update of a workspace, when they are made they register a redirect_uri which contains the current PAGES_HOST value.

While installing your platform you might change the value of PAGES_HOST multiple time.
So, whenever you change your PAGES_HOST, make sure to trigger a workspace update (example: change the description of the workspace and save) in order to trigger a new registration as client with the new PAGES_HOST value.

4. Allow accessing products pages from SSO

When a new user will authenticate with SSO, he won't be able to access existing products pages without explicitly whitelisting the sso inside desired products configuration.

Configuring Microsoft SSO

1. Register an app

First follow https://learn.microsoft.com/en-us/azure/active-directory/develop/quickstart-register-app in order to register an app in your Azure tenant.

  • The application can be named "Prisme.ai" or whatever else, it doesn't matter.
  • Select the desired Supported account types as it will restrict which microsoft accounts can log in the studio
  • Its redirect URI must be set to Web platform & have the following value : https://api-gateway-url/v2/login/azure/callback

Note somewhere the application id as it will be the client id passed in environment variables.

2. Generate a secret

Click on Certificates & secrets under Manage menu & add a New client secret.

Keep longest expires time & Add.
Note somewhere the client secret value as it will be the client secret passed in environement variables.

3. Configure environment variables

In order to finish SSO configuration in api-gateway, its following environment variables must be set :

  • AZURE_AD_CLOUD_INSTANCE_ID : https://login.microsoftonline.com/ or any private one
  • AZURE_AD_TENANT : The tenant domain as found in Azure Active Directory > Primary domain (ex: YourCompany.onmicrosoft.com)
    • In order to accept any organizational directory account, replace this value with organizations.
    • In order to accept any organizational directory and personal Microsoft accounts, replace this value with common.
    • In order to accept only Microsoft accounts only, replace this value with consumers.
    • This must reflect the Supported account types option chosen when registering the app
  • AZURE_AD_APP_ID : The application id retrieved in first step
  • AZURE_AD_CLIENT_SECRET : The secret value retrieved in second step

Finally, add the following environment variable to console and pages microsevice :

  • ENABLED_AUTH_PROVIDERS : azure

or

  • ENABLED_AUTH_PROVIDERS :[{"name":"custom","extends":"azure","label":{"fr":"Connexion avec custom","en":"Connect with custom"},"icon":"http://logo.png"}]