001/*
002 * (C) Copyright 2006-2018 Nuxeo (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Nuxeo - initial API and implementation
018 *
019 */
020
021package org.nuxeo.usermapper.extension;
022
023import static java.nio.charset.StandardCharsets.UTF_8;
024
025import java.io.ByteArrayInputStream;
026import java.io.Serializable;
027import java.util.Map;
028
029import javax.script.ScriptContext;
030import javax.script.ScriptEngine;
031
032import org.apache.commons.lang3.StringUtils;
033import org.nuxeo.automation.scripting.api.AutomationScriptingService;
034import org.nuxeo.automation.scripting.api.AutomationScriptingService.Session;
035import org.nuxeo.automation.scripting.internals.AutomationMapper;
036import org.nuxeo.ecm.core.api.CoreSession;
037import org.nuxeo.ecm.core.api.NuxeoException;
038import org.nuxeo.ecm.core.api.NuxeoPrincipal;
039import org.nuxeo.runtime.api.Framework;
040
041/**
042 * {@link UserMapper} implementation using Nashorn to implement logic using JavaScript
043 *
044 * @author tiry
045 * @since 7.4
046 */
047
048public class NashornUserMapper extends AbstractUserMapper {
049
050    protected final String mapperSource;
051
052    protected final String wrapperSource;
053
054    public NashornUserMapper(String mapperScript, String wrapperScript) {
055        super();
056        mapperSource = mapperScript;
057        wrapperSource = wrapperScript;
058    }
059
060    @Override
061    public Object wrapNuxeoPrincipal(NuxeoPrincipal principal, Object userObject, Map<String, Serializable> params) {
062        if (StringUtils.isEmpty(wrapperSource)) {
063            return null;
064        }
065        try (Session session = Framework.getService(AutomationScriptingService.class).get((CoreSession) null)) {
066            Map<String, Object> bindings = session.adapt(ScriptEngine.class).getBindings(ScriptContext.ENGINE_SCOPE);
067            bindings.put("nuxeoPrincipal", principal);
068            bindings.put("userObject", userObject);
069            bindings.put("params", params);
070            session.run(new ByteArrayInputStream(wrapperSource.getBytes(UTF_8)));
071            return bindings.get("userObject");
072        } catch (Exception e) {
073            throw new NuxeoException("Error while executing JavaScript mapper", e);
074        }
075    }
076
077    @Override
078    public void init(Map<String, String> params) throws Exception {
079
080    }
081
082    @Override
083    public void release() {
084        // NOP
085    }
086
087    @Override
088    protected void resolveAttributes(Object userObject, Map<String, Serializable> searchAttributes,
089            Map<String, Serializable> userAttributes, Map<String, Serializable> profileAttributes) {
090        try (Session session = Framework.getService(AutomationScriptingService.class).get((CoreSession) null)) {
091            AutomationMapper mapper = session.adapt(AutomationMapper.class);
092            mapper.put("searchAttributes", searchAttributes);
093            mapper.put("profileAttributes", profileAttributes);
094            mapper.put("userAttributes", userAttributes);
095            mapper.put("userObject", userObject);
096            session.run(new ByteArrayInputStream(mapperSource.getBytes(UTF_8)));
097        } catch (Exception e) {
098            throw new NuxeoException("Error while executing JavaScript mapper", e);
099        }
100    }
101
102}