GoogleIDToken currently provides a single useful class “Validator”, which provides a single method “#check”, which parses and validates an ID Token allegedly generated by Google auth servers.
Creating a new validator takes a single optional hash argument. If the hash has an entry for :x509_key, that value is taken to be a key as created by OpenSSL::X509::Certificate.new, and the token is validated using that key. If there is no such entry, the keys are fetched from the Google certs endpoint www.googleapis.com/oauth2/v1/certs.
Google is now maintaining this gem so it is better if you use their version:
github.com/google/google-id-token
This is a fork from: https://code.google.com/p/google-id-token/
gem 'google-id-token', github: 'Nerian/google-id-token'
validator = GoogleIDToken::Validator.new jwt = validator.check(token, required_audience, optional_client_id) if jwt email = jwt['email'] else report "Cannot validate: #{validator.problem}" end cert = OpenSSL::X509::Certificate.new(File.read('my-cert.pem')) validator = GoogleIDToken::Validator.new(:x509_cert => cert) jwt = validator.check(token, required_audience, required_client_id) if jwt email = jwt['email'] else report "Cannot validate: #{validator.problem}" end
Copyright 2015 Tim Bray, Bob Aman
Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
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