001/*
002 * oauth2-oidc-sdk
003 *
004 * Copyright 2012-2016, Connect2id Ltd and contributors.
005 *
006 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use
007 * this file except in compliance with the License. You may obtain a copy of the
008 * License at
009 *
010 *    http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software distributed
013 * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
014 * CONDITIONS OF ANY KIND, either express or implied. See the License for the
015 * specific language governing permissions and limitations under the License.
016 */
017
018package com.nimbusds.openid.connect.sdk.op;
019
020
021import java.util.List;
022import java.util.Map;
023
024import com.nimbusds.oauth2.sdk.Scope;
025import com.nimbusds.oauth2.sdk.util.MultivaluedMapUtils;
026import com.nimbusds.openid.connect.sdk.OIDCScopeValue;
027
028
029/**
030 * OpenID authentication request detector.
031 */
032public class AuthenticationRequestDetector {
033        
034        /**
035         * Returns {@code true} if the specified query parameters are likely
036         * for an OpenID authentication request.
037         *
038         * @param queryParams The query parameters.
039         *
040         * @return {@code true} for a likely OpenID authentication request,
041         *         else {@code false}.
042         */
043        public static boolean isLikelyOpenID(final Map<String, List<String>> queryParams) {
044                
045                Scope scope = Scope.parse(MultivaluedMapUtils.getFirstValue(queryParams, ("scope")));
046                
047                if (scope == null) {
048                        return false;
049                }
050                
051                return scope.contains(OIDCScopeValue.OPENID);
052        }
053        
054        
055        /**
056         * Prevents public instantiation.
057         */
058        private AuthenticationRequestDetector() {}
059}