001/*
002 * (C) Copyright 2006-2011 Nuxeo SA (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 *     Florent Guillaume
018 */
019package org.nuxeo.ecm.core.opencmis.bindings;
020
021import java.util.Map;
022
023import javax.security.auth.login.LoginContext;
024import javax.security.auth.login.LoginException;
025import javax.servlet.http.HttpServletRequest;
026import javax.xml.ws.handler.MessageContext;
027import javax.xml.ws.handler.MessageContext.Scope;
028import javax.xml.ws.handler.soap.SOAPMessageContext;
029
030import org.apache.chemistry.opencmis.commons.enums.CmisVersion;
031import org.apache.chemistry.opencmis.commons.server.CallContext;
032import org.apache.chemistry.opencmis.server.impl.webservices.AbstractService;
033import org.apache.chemistry.opencmis.server.impl.webservices.CmisWebServicesServlet;
034import org.apache.commons.logging.Log;
035import org.apache.commons.logging.LogFactory;
036import org.nuxeo.runtime.api.Framework;
037import org.nuxeo.runtime.api.login.Authenticator;
038
039/**
040 * SOAP handler that extracts authentication information from the SOAP headers and propagates it to Nuxeo for login.
041 */
042public class NuxeoCmisAuthHandler extends CXFAuthHandler implements LoginProvider {
043
044    public static final String NUXEO_LOGIN_CONTEXT = "nuxeo.opencmis.LoginContext";
045
046    private static final Log log = LogFactory.getLog(NuxeoCmisAuthHandler.class);
047
048    protected LoginProvider loginProvider;
049
050    @Override
051    public boolean handleMessage(SOAPMessageContext context) {
052        boolean res = super.handleMessage(context);
053
054        HttpServletRequest request = (HttpServletRequest) context.get(MessageContext.SERVLET_REQUEST);
055        request.setAttribute(CmisWebServicesServlet.CMIS_VERSION, CmisVersion.CMIS_1_1);
056
057        @SuppressWarnings("unchecked")
058        Map<String, String> callContextMap = (Map<String, String>) context.get(AbstractService.CALL_CONTEXT_MAP);
059        if (callContextMap != null) {
060            // login to Nuxeo
061            String username = callContextMap.get(CallContext.USERNAME);
062            String password = callContextMap.get(CallContext.PASSWORD);
063            try {
064                LoginContext loginContext = getLoginProvider().login(username, password);
065                // store in message context, for later logout
066                context.put(NUXEO_LOGIN_CONTEXT, loginContext);
067                context.setScope(NUXEO_LOGIN_CONTEXT, Scope.APPLICATION);
068            } catch (LoginException e) {
069                throw new RuntimeException("Login failed for user '" + username + "'", e);
070            }
071        }
072        return res;
073    }
074
075    @Override
076    public void close(MessageContext context) {
077        LoginContext loginContext = (LoginContext) context.get(NUXEO_LOGIN_CONTEXT);
078        if (loginContext != null) {
079            try {
080                loginContext.logout();
081            } catch (LoginException e) {
082                log.error("Cannot logout", e);
083            }
084        }
085        super.close(context);
086    }
087
088    protected LoginProvider getLoginProvider() {
089        if (loginProvider == null) {
090            loginProvider = this;
091            String className = Framework.getProperty(LoginProvider.class.getName());
092            if (className != null) {
093                try {
094                    Object instance = Class.forName(className).newInstance();
095                    if (instance instanceof LoginProvider) {
096                        loginProvider = (LoginProvider) instance;
097                    } else {
098                        log.error(className + " is not an instance of " + LoginProvider.class.getName());
099                    }
100                } catch (ReflectiveOperationException e) {
101                    log.error(e);
102                }
103            }
104        }
105        return loginProvider;
106    }
107
108    // LoginProvider
109    @Override
110    public LoginContext login(String username, String password) {
111        try {
112            // check identity against UserManager
113            if (!getAuthenticator().checkUsernamePassword(username, password)) {
114                throw new RuntimeException("Authentication failed for user '" + username + "'");
115            }
116            // login to Nuxeo framework
117            return Framework.login(username, password);
118        } catch (LoginException e) {
119            throw new RuntimeException("Login failed for user '" + username + "'", e);
120        }
121    }
122
123    protected static Authenticator getAuthenticator() {
124        return Framework.getService(Authenticator.class);
125    }
126
127}