001/*******************************************************************************
002 * Copyright 2017 The MIT Internet Trust Consortium
003 *
004 * Portions copyright 2011-2013 The MITRE Corporation
005 *
006 * Licensed under the Apache License, Version 2.0 (the "License");
007 * you may not use this file except in compliance with the License.
008 * You may obtain a copy of the 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
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 *******************************************************************************/
018/**
019 *
020 */
021package org.mitre.discovery.view;
022
023import java.io.IOException;
024import java.io.Writer;
025import java.util.Map;
026
027import javax.servlet.http.HttpServletRequest;
028import javax.servlet.http.HttpServletResponse;
029
030import org.mitre.openid.connect.view.HttpCodeView;
031import org.slf4j.Logger;
032import org.slf4j.LoggerFactory;
033import org.springframework.http.HttpStatus;
034import org.springframework.stereotype.Component;
035import org.springframework.validation.BeanPropertyBindingResult;
036import org.springframework.web.servlet.view.AbstractView;
037
038import com.google.gson.ExclusionStrategy;
039import com.google.gson.FieldAttributes;
040import com.google.gson.Gson;
041import com.google.gson.GsonBuilder;
042import com.google.gson.JsonArray;
043import com.google.gson.JsonObject;
044
045/**
046 * @author jricher
047 *
048 */
049@Component("webfingerView")
050public class WebfingerView extends AbstractView {
051
052        /**
053         * Logger for this class
054         */
055        private static final Logger logger = LoggerFactory.getLogger(WebfingerView.class);
056
057        private Gson gson = new GsonBuilder()
058                        .setExclusionStrategies(new ExclusionStrategy() {
059
060                                @Override
061                                public boolean shouldSkipField(FieldAttributes f) {
062
063                                        return false;
064                                }
065
066                                @Override
067                                public boolean shouldSkipClass(Class<?> clazz) {
068                                        // skip the JPA binding wrapper
069                                        if (clazz.equals(BeanPropertyBindingResult.class)) {
070                                                return true;
071                                        }
072                                        return false;
073                                }
074
075                        })
076                        .serializeNulls()
077                        .setDateFormat("yyyy-MM-dd'T'HH:mm:ssZ")
078                        .create();
079
080        @Override
081        protected void renderMergedOutputModel(Map<String, Object> model, HttpServletRequest request, HttpServletResponse response) {
082
083                response.setContentType("application/jrd+json");
084
085
086                HttpStatus code = (HttpStatus) model.get(HttpCodeView.CODE);
087                if (code == null) {
088                        code = HttpStatus.OK; // default to 200
089                }
090
091                response.setStatus(code.value());
092
093                try {
094
095                        String resource = (String)model.get("resource");
096                        String issuer = (String)model.get("issuer");
097
098                        JsonObject obj = new JsonObject();
099                        obj.addProperty("subject", resource);
100
101                        JsonArray links = new JsonArray();
102                        JsonObject link = new JsonObject();
103                        link.addProperty("rel", "http://openid.net/specs/connect/1.0/issuer");
104                        link.addProperty("href", issuer);
105                        links.add(link);
106
107                        obj.add("links", links);
108
109                        Writer out = response.getWriter();
110                        gson.toJson(obj, out);
111
112                } catch (IOException e) {
113
114                        logger.error("IOException in JsonEntityView.java: ", e);
115
116                }
117        }
118
119}