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# frozen_string_literal: true
module OAuth2
module Strategy
# The Resource Owner Password Credentials Authorization Strategy
#
# IMPORTANT (OAuth 2.1): The Resource Owner Password Credentials grant is omitted in OAuth 2.1.
# It remains here for backward compatibility with OAuth 2.0 providers. Prefer Authorization Code + PKCE.
#
# References:
# - OAuth 2.1 draft: https://datatracker.ietf.org/doc/html/draft-ietf-oauth-v2-1-13
# - Okta explainer: https://developer.okta.com/blog/2019/12/13/oauth-2-1-how-many-rfcs
# - FusionAuth blog: https://fusionauth.io/blog/2020/04/15/whats-new-in-oauth-2-1
#
# @see http://datatracker.ietf.org/doc/html/draft-ietf-oauth-v2-15#section-4.3
class Password < Base
# Not used for this strategy
#
# @raise [NotImplementedError]
def authorize_url
raise(NotImplementedError, "The authorization endpoint is not used in this strategy")
end
# Retrieve an access token given the specified End User username and password.
#
# @param [String] username the End User username
# @param [String] password the End User password
# @param [Hash] params additional params
def get_token(username, password, params = {}, opts = {})
params = {
"grant_type" => "password",
"username" => username,
"password" => password,
}.merge(params)
@client.get_token(params, opts)
end
end
end
end
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