AshAuthentication.Strategy.Microsoft

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Strategy for authenticating using Microsoft

This strategy builds on-top of AshAuthentication.Strategy.Oidc and assent.

It uses Microsoft's OpenID Connect discovery endpoint to automatically retrieve token, authorization, and user info URLs. User identity claims (email, name, etc.) are extracted from the ID token returned during the authorization code flow.

In order to use Microsoft you need to provide the following minimum configuration:

  • client_id
  • redirect_uri
  • client_secret

By default the strategy uses the common tenant endpoint, which allows any Microsoft account (personal, work, or school). Multi-tenant issuer validation is handled automatically — the {tenantid} template in Microsoft's discovery document is resolved from the ID token's tid claim before validation.

To restrict sign-in to a specific Azure tenant, override base_url:

base_url "https://login.microsoftonline.com/YOUR_TENANT_ID/v2.0"

More documentation:

authentication.strategies.microsoft

microsoft name \\ :microsoft

Provides a pre-configured authentication strategy for Microsoft.

This strategy is built using the :oidc strategy, and automatically retrieves configuration from Microsoft's discovery endpoint (https://login.microsoftonline.com/{tenant|common}/v2.0/.well-known/openid-configuration).

By default the strategy uses the common tenant endpoint. To restrict sign-in to a specific Azure tenant, override base_url:

base_url "https://login.microsoftonline.com/YOUR_TENANT_ID/v2.0"

More documentation:
Strategy defaults:

The following defaults are applied:

  • :base_url is set to "https://login.microsoftonline.com/common/v2.0".
  • :authorization_params is set to [scope: "email profile"].
  • :client_authentication_method is set to "client_secret_post".

Arguments

NameTypeDefaultDocs
nameatomUniquely identifies the strategy.

Options

NameTypeDefaultDocs
client_id(any, any -> any) | module | String.tThe OAuth2 client ID. Takes either a module which implements the AshAuthentication.Secret behaviour, a 2 arity anonymous function or a string.
redirect_uri(any, any -> any) | module | String.tThe callback URI base. Not the whole URI back to the callback endpoint, but the URI to your AuthPlug. Takes either a module which implements the AshAuthentication.Secret behaviour, a 2 arity anonymous function or a string.
base_url(any, any -> any) | module | String.t"https://login.microsoftonline.com/common/v2.0"The base URL of the OAuth2 server - including the leading protocol (ie https://). Takes either a module which implements the AshAuthentication.Secret behaviour, a 2 arity anonymous function or a string.
site(any, any -> any) | module | String.tDeprecated: Use base_url instead.
prevent_hijacking?booleantrueRequires a confirmation add_on to be present if the password strategy is used with the same identity_field.
auth_methodnil | :client_secret_basic | :client_secret_post | :client_secret_jwt | :private_key_jwt:client_secret_postThe authentication strategy used, optional. If not set, no authentication will be used during the access token request.
client_secret(any, any -> any) | module | String.tThe OAuth2 client secret. Required if :auth_method is :client_secret_basic, :client_secret_post or :client_secret_jwt. Takes either a module which implements the AshAuthentication.Secret behaviour, a 2 arity anonymous function or a string.
trusted_audiences(any, any -> any) | module | list(any) | nilA list of audiences which are trusted. Takes either a module which implements the AshAuthentication.Secret behaviour, a 2 arity anonymous function or a string.
private_key(any, any -> any) | module | String.tThe private key to use if :auth_method is :private_key_jwt. Takes either a module which implements the AshAuthentication.Secret behaviour, a 2 arity anonymous function or a string.
code_verifierbooleanfalseBoolean to generate and use a random 128 byte long url safe code verifier for PKCE flow, optional, defaults to false. When set to true the session params will contain :code_verifier, :code_challenge, and :code_challenge_method params
authorization_params(any, any -> any) | module | keyword | nil[scope: "email profile"]Any additional parameters to encode in the request phase. eg: authorization_params scope: "openid profile email"
registration_enabled?booleantrueIf enabled, new users will be able to register for your site when authenticating and not already present. If not, only existing users will be able to authenticate.
register_action_nameatomThe name of the action to use to register a user, if registration_enabled? is true. Defaults to register_with_<name> See the "Registration and Sign-in" section of the strategy docs for more.
sign_in_action_nameatomThe name of the action to use to sign in an existing user, if sign_in_enabled? is true. Defaults to sign_in_with_<strategy>, which is generated for you by default. See the "Registration and Sign-in" section of the strategy docs for more information.
identity_resourcemodule | falsefalseThe resource used to store user identities, or false to disable. See the User Identities section of the strategy docs for more.
identity_relationship_nameatom:identitiesName of the relationship to the provider identities resource
identity_relationship_user_id_attributeatom:user_idThe name of the destination (user_id) attribute on your provider identity resource. Only necessary if you've changed the user_id_attribute_name option of the provider identity.
openid_configuration_uri(any, any -> any) | module | String.t"/.well-known/openid-configuration"The URI for the OpenID provider
client_authentication_method"client_secret_basic" | "client_secret_post" | "client_secret_jwt" | "private_key_jwt" | "none""client_secret_post"The client authentication method to use.
openid_configurationnil | %{optional(String.t) => any}The OpenID configuration. If not set, the configuration will be retrieved from openid_configuration_uri.
id_token_signed_response_alg"HS256" | "HS384" | "HS512" | "RS256" | "RS384" | "RS512" | "ES256" | "ES384" | "ES512" | "PS256" | "PS384" | "PS512" | "Ed25519" | "Ed25519ph" | "Ed448" | "Ed448ph" | "EdDSA""RS256"The id_token_signed_response_alg parameter sent by the Client during Registration.
id_token_ttl_secondsnil | pos_integerThe number of seconds from iat that an ID Token will be considered valid.
nonceboolean | (any, any -> any) | module | String.ttrueA function for generating the session nonce, true to automatically generate it with AshAuthentication.Strategy.Oidc.NonceGenerator, or false to disable.

Introspection

Target: AshAuthentication.Strategy.OAuth2