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.chemistry.opencmis.server.shared.CsrfManager;
035import org.apache.commons.logging.Log;
036import org.apache.commons.logging.LogFactory;
037import org.nuxeo.runtime.api.Framework;
038import org.nuxeo.runtime.api.login.Authenticator;
039
040/**
041 * SOAP handler that extracts authentication information from the SOAP headers and propagates it to Nuxeo for login.
042 */
043public class NuxeoCmisAuthHandler extends CXFAuthHandler implements LoginProvider {
044
045    public static final String NUXEO_LOGIN_CONTEXT = "nuxeo.opencmis.LoginContext";
046
047    private static final Log log = LogFactory.getLog(NuxeoCmisAuthHandler.class);
048
049    protected LoginProvider loginProvider;
050
051    protected CsrfManager csrfManager = new CsrfManager(null, null); // TODO configure CSRF token
052
053    @Override
054    public boolean handleMessage(SOAPMessageContext context) {
055        boolean res = super.handleMessage(context);
056
057        HttpServletRequest request = (HttpServletRequest) context.get(MessageContext.SERVLET_REQUEST);
058        request.setAttribute(CmisWebServicesServlet.CMIS_VERSION, CmisVersion.CMIS_1_1);
059        request.setAttribute(CmisWebServicesServlet.CSRF_MANAGER, csrfManager);
060
061        @SuppressWarnings("unchecked")
062        Map<String, String> callContextMap = (Map<String, String>) context.get(AbstractService.CALL_CONTEXT_MAP);
063        if (callContextMap != null) {
064            // login to Nuxeo
065            String username = callContextMap.get(CallContext.USERNAME);
066            String password = callContextMap.get(CallContext.PASSWORD);
067            try {
068                LoginContext loginContext = getLoginProvider().login(username, password);
069                // store in message context, for later logout
070                context.put(NUXEO_LOGIN_CONTEXT, loginContext);
071                context.setScope(NUXEO_LOGIN_CONTEXT, Scope.APPLICATION);
072            } catch (LoginException e) {
073                throw new RuntimeException("Login failed for user '" + username + "'", e);
074            }
075        }
076        return res;
077    }
078
079    @Override
080    public void close(MessageContext context) {
081        LoginContext loginContext = (LoginContext) context.get(NUXEO_LOGIN_CONTEXT);
082        if (loginContext != null) {
083            try {
084                loginContext.logout();
085            } catch (LoginException e) {
086                log.error("Cannot logout", e);
087            }
088        }
089        super.close(context);
090    }
091
092    protected LoginProvider getLoginProvider() {
093        if (loginProvider == null) {
094            loginProvider = this;
095            String className = Framework.getProperty(LoginProvider.class.getName());
096            if (className != null) {
097                try {
098                    Object instance = Class.forName(className).newInstance();
099                    if (instance instanceof LoginProvider) {
100                        loginProvider = (LoginProvider) instance;
101                    } else {
102                        log.error(className + " is not an instance of " + LoginProvider.class.getName());
103                    }
104                } catch (ReflectiveOperationException e) {
105                    log.error(e);
106                }
107            }
108        }
109        return loginProvider;
110    }
111
112    // LoginProvider
113    @Override
114    public LoginContext login(String username, String password) {
115        try {
116            // check identity against UserManager
117            if (!getAuthenticator().checkUsernamePassword(username, password)) {
118                throw new RuntimeException("Authentication failed for user '" + username + "'");
119            }
120            // login to Nuxeo framework
121            return Framework.login(username, password);
122        } catch (LoginException e) {
123            throw new RuntimeException("Login failed for user '" + username + "'", e);
124        }
125    }
126
127    protected static Authenticator getAuthenticator() {
128        return Framework.getService(Authenticator.class);
129    }
130
131}