+ def self.check_anonymous_user_token(token:, remote:)
+ case token[0..2]
+ when 'v2/'
+ _, token_uuid, secret, optional = token.split('/')
+ unless token_uuid.andand.length == 27 && secret.andand.length.andand > 0 &&
+ token_uuid == Rails.configuration.ClusterID+"-gj3su-anonymouspublic"
+ # invalid v2 token, or v2 token for another user
+ return nil
+ end
+ else
+ # v1 token
+ secret = token
+ end
+
+ # Usually, the secret is salted
+ salted_secret = OpenSSL::HMAC.hexdigest('sha1', Rails.configuration.Users.AnonymousUserToken, remote)
+
+ # The anonymous token could be specified as a full v2 token in the config,
+ # but the config loader strips it down to the secret part.
+ # The anonymous token content and minimum length is verified in lib/config
+ if secret.length >= 0 && (secret == Rails.configuration.Users.AnonymousUserToken || secret == salted_secret)
+ return ApiClientAuthorization.new(user: User.find_by_uuid(anonymous_user_uuid),
+ uuid: Rails.configuration.ClusterID+"-gj3su-anonymouspublic",
+ api_token: secret,
+ api_client: anonymous_user_token_api_client,
+ scopes: ['GET /'])
+ else
+ return nil
+ end
+ end
+