Source Code Cross Referenced for PipelineAuthenticator.java in  » Content-Management-System » apache-lenya-2.0 » org » apache » cocoon » webapps » authentication » components » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Content Management System » apache lenya 2.0 » org.apache.cocoon.webapps.authentication.components 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Licensed to the Apache Software Foundation (ASF) under one or more
003:         * contributor license agreements.  See the NOTICE file distributed with
004:         * this work for additional information regarding copyright ownership.
005:         * The ASF licenses this file to You under the Apache License, Version 2.0
006:         * (the "License"); you may not use this file except in compliance with
007:         * the License.  You may obtain a copy of the License at
008:         *
009:         *      http://www.apache.org/licenses/LICENSE-2.0
010:         *
011:         * Unless required by applicable law or agreed to in writing, software
012:         * distributed under the License is distributed on an "AS IS" BASIS,
013:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         * See the License for the specific language governing permissions and
015:         * limitations under the License.
016:         */
017:        package org.apache.cocoon.webapps.authentication.components;
018:
019:        import java.io.IOException;
020:
021:        import org.apache.avalon.framework.activity.Disposable;
022:        import org.apache.avalon.framework.logger.AbstractLogEnabled;
023:        import org.apache.avalon.framework.service.ServiceException;
024:        import org.apache.avalon.framework.service.ServiceManager;
025:        import org.apache.avalon.framework.service.Serviceable;
026:        import org.apache.avalon.framework.thread.ThreadSafe;
027:        import org.apache.cocoon.ProcessingException;
028:        import org.apache.cocoon.components.source.SourceUtil;
029:        import org.apache.cocoon.webapps.authentication.configuration.HandlerConfiguration;
030:        import org.apache.cocoon.webapps.authentication.user.UserHandler;
031:        import org.apache.cocoon.webapps.session.MediaManager;
032:        import org.apache.cocoon.xml.XMLUtils;
033:        import org.apache.cocoon.xml.dom.DOMUtil;
034:        import org.apache.excalibur.source.Source;
035:        import org.apache.excalibur.source.SourceException;
036:        import org.apache.excalibur.source.SourceParameters;
037:        import org.apache.excalibur.source.SourceResolver;
038:        import org.w3c.dom.Document;
039:        import org.w3c.dom.Element;
040:        import org.w3c.dom.Node;
041:        import org.w3c.dom.NodeList;
042:        import org.w3c.dom.Text;
043:        import org.xml.sax.SAXException;
044:
045:        /**
046:         * Verify if a user can be authenticated.
047:         *
048:         * @author <a href="mailto:cziegeler@apache.org">Carsten Ziegeler</a>
049:         * @deprecated This block is deprecated and will be removed in future versions.
050:         * @version CVS $Id: PipelineAuthenticator.java 433543 2006-08-22 06:22:54Z crossley $
051:         */
052:        public class PipelineAuthenticator extends AbstractLogEnabled implements 
053:                Serviceable, ThreadSafe, Disposable, Authenticator {
054:
055:            /** The service manager */
056:            protected ServiceManager manager;
057:
058:            /** The source resolver */
059:            protected SourceResolver resolver;
060:
061:            /**
062:             * Check the fragment if it is valid
063:             */
064:            private boolean isValidAuthenticationFragment(
065:                    Document authenticationFragment) throws ProcessingException {
066:                // calling method is synced
067:                if (getLogger().isDebugEnabled()) {
068:                    getLogger()
069:                            .debug(
070:                                    "BEGIN isValidAuthenticationFragment fragment="
071:                                            + XMLUtils
072:                                                    .serializeNode(
073:                                                            authenticationFragment,
074:                                                            XMLUtils
075:                                                                    .createPropertiesForXML(false)));
076:                }
077:                boolean isValid = false;
078:
079:                // authenticationFragment must only have exactly one child with
080:                // the name authentication
081:                if (authenticationFragment.hasChildNodes() == true
082:                        && authenticationFragment.getChildNodes().getLength() == 1) {
083:                    Node child = authenticationFragment.getFirstChild();
084:
085:                    if (child.getNodeType() == Node.ELEMENT_NODE
086:                            && child.getNodeName().equals("authentication") == true) {
087:
088:                        // now authentication must have one child ID
089:                        if (child.hasChildNodes() == true) {
090:                            NodeList children = child.getChildNodes();
091:                            boolean found = false;
092:                            int i = 0;
093:                            int l = children.getLength();
094:
095:                            while (found == false && i < l) {
096:                                child = children.item(i);
097:                                if (child.getNodeType() == Node.ELEMENT_NODE
098:                                        && child.getNodeName().equals("ID") == true) {
099:                                    found = true;
100:                                } else {
101:                                    i++;
102:                                }
103:                            }
104:
105:                            // now the last check: ID must have a TEXT child
106:                            if (found == true) {
107:                                child.normalize(); // join text nodes
108:                                if (child.hasChildNodes() == true
109:                                        && child.getChildNodes().getLength() == 1
110:                                        && child.getChildNodes().item(0)
111:                                                .getNodeType() == Node.TEXT_NODE) {
112:                                    String value = child.getChildNodes()
113:                                            .item(0).getNodeValue().trim();
114:                                    if (value.length() > 0)
115:                                        isValid = true;
116:                                }
117:                            }
118:                        }
119:
120:                    }
121:                }
122:                if (this .getLogger().isDebugEnabled()) {
123:                    this .getLogger().debug(
124:                            "END isValidAuthenticationFragment valid="
125:                                    + isValid);
126:                }
127:                return isValid;
128:            }
129:
130:            /* (non-Javadoc)
131:             * @see org.apache.cocoon.webapps.authentication.components.Authenticator#authenticate(org.apache.cocoon.webapps.authentication.configuration.HandlerConfiguration, org.apache.excalibur.source.SourceParameters)
132:             */
133:            public AuthenticationResult authenticate(
134:                    HandlerConfiguration configuration,
135:                    SourceParameters parameters) throws ProcessingException {
136:                if (this .getLogger().isDebugEnabled()) {
137:                    this .getLogger().debug(
138:                            "start authenticator using handler "
139:                                    + configuration.getName());
140:                }
141:
142:                final String authenticationResourceName = configuration
143:                        .getAuthenticationResource();
144:                final SourceParameters authenticationParameters = configuration
145:                        .getAuthenticationResourceParameters();
146:                if (parameters != null) {
147:                    parameters.add(authenticationParameters);
148:                } else {
149:                    parameters = authenticationParameters;
150:                }
151:
152:                Document doc = null;
153:                String exceptionMsg = null;
154:
155:                // invoke the source
156:                try {
157:                    Source source = null;
158:                    try {
159:                        source = SourceUtil.getSource(
160:                                authenticationResourceName, null, parameters,
161:                                this .resolver);
162:                        doc = SourceUtil.toDOM(source);
163:                    } catch (SAXException se) {
164:                        throw new ProcessingException(se);
165:                    } catch (SourceException se) {
166:                        throw SourceUtil.handle(se);
167:                    } catch (IOException e) {
168:                        throw new ProcessingException(e);
169:                    } finally {
170:                        this .resolver.release(source);
171:                    }
172:                } catch (ProcessingException local) {
173:                    this .getLogger().error(
174:                            "authenticator: " + local.getMessage(), local);
175:                    exceptionMsg = local.getMessage();
176:                }
177:
178:                // test if authentication was successful
179:                boolean isValid = false;
180:                AuthenticationResult result = null;
181:                if (doc != null) {
182:                    isValid = this .isValidAuthenticationFragment(doc);
183:
184:                    if (isValid) {
185:                        if (this .getLogger().isInfoEnabled()) {
186:                            this .getLogger().info(
187:                                    "Authenticator: User authenticated using handler '"
188:                                            + configuration.getName() + "'");
189:                        }
190:
191:                        MediaManager mediaManager = null;
192:                        String mediaType;
193:                        try {
194:                            mediaManager = (MediaManager) this .manager
195:                                    .lookup(MediaManager.ROLE);
196:                            mediaType = mediaManager.getMediaType();
197:                        } catch (ServiceException se) {
198:                            throw new ProcessingException(
199:                                    "Unable to lookup media manager.", se);
200:                        } finally {
201:                            this .manager.release(mediaManager);
202:                        }
203:                        synchronized (configuration) {
204:                            // add special nodes to the authentication block:
205:                            // useragent, type and media
206:                            Element specialElement;
207:                            Text specialValue;
208:                            Element authNode;
209:
210:                            authNode = (Element) doc.getFirstChild();
211:
212:                            specialElement = doc.createElementNS(null, "type");
213:                            specialValue = doc
214:                                    .createTextNode("cocoon.authentication");
215:                            specialElement.appendChild(specialValue);
216:                            authNode.appendChild(specialElement);
217:
218:                            specialElement = doc.createElementNS(null, "media");
219:                            specialValue = doc.createTextNode(mediaType);
220:                            specialElement.appendChild(specialValue);
221:                            authNode.appendChild(specialElement);
222:
223:                            result = new AuthenticationResult(true, doc);
224:
225:                        } // end sync
226:                    }
227:                }
228:
229:                if (!isValid) {
230:                    if (this .getLogger().isInfoEnabled()) {
231:                        this .getLogger().info(
232:                                "Authenticator: Failed authentication using handler '"
233:                                        + configuration.getName() + "'");
234:                    }
235:                    // get the /authentication/data Node if available
236:                    Node data = null;
237:
238:                    if (doc != null) {
239:                        data = DOMUtil.getFirstNodeFromPath(doc, new String[] {
240:                                "authentication", "data" }, false);
241:                    }
242:                    doc = DOMUtil.createDocument();
243:
244:                    // now create the following xml:
245:                    // <root>
246:                    //   <failed/>
247:                    //   if data is available data is included, otherwise:
248:                    //   <data>No information</data>
249:                    //   If exception message contains info, it is included into failed
250:                    // </root>
251:                    final Element root = doc.createElementNS(null, "root");
252:                    doc.appendChild(root);
253:                    Element element = doc.createElementNS(null, "failed");
254:                    root.appendChild(element);
255:
256:                    if (exceptionMsg != null) {
257:                        Text text = doc.createTextNode(exceptionMsg);
258:                        element.appendChild(text);
259:                    }
260:
261:                    if (data == null) {
262:                        element = doc.createElementNS(null, "data");
263:                        root.appendChild(element);
264:                        Text text = doc
265:                                .createTextNode("No information available");
266:                        element.appendChild(text);
267:                    } else {
268:                        root.appendChild(doc.importNode(data, true));
269:                    }
270:
271:                    result = new AuthenticationResult(false, doc);
272:                }
273:
274:                if (this .getLogger().isDebugEnabled()) {
275:                    this .getLogger().debug("end authenticator");
276:                }
277:
278:                return result;
279:            }
280:
281:            /* (non-Javadoc)
282:             * @see org.apache.avalon.framework.service.Serviceable#service(ServiceManager)
283:             */
284:            public void service(ServiceManager manager) throws ServiceException {
285:                this .manager = manager;
286:                this .resolver = (SourceResolver) this .manager
287:                        .lookup(SourceResolver.ROLE);
288:            }
289:
290:            /* (non-Javadoc)
291:             * @see org.apache.avalon.framework.activity.Disposable#dispose()
292:             */
293:            public void dispose() {
294:                if (this .manager != null) {
295:                    this .manager.release(this .resolver);
296:                    this .manager = null;
297:                    this .resolver = null;
298:                }
299:            }
300:
301:            /* (non-Javadoc)
302:             * @see org.apache.cocoon.webapps.authentication.components.Authenticator#logout(UserHandler)
303:             */
304:            public void logout(UserHandler handler) {
305:                if (this .getLogger().isDebugEnabled()) {
306:                    this .getLogger().debug(
307:                            "logout using handler " + handler.getHandlerName());
308:                }
309:
310:                final HandlerConfiguration configuration = handler
311:                        .getHandlerConfiguration();
312:                final String logoutResourceName = configuration
313:                        .getLogoutResource();
314:                if (logoutResourceName != null) {
315:                    final SourceParameters parameters = configuration
316:                            .getAuthenticationResourceParameters();
317:
318:                    // invoke the source
319:                    Source source = null;
320:                    try {
321:                        // This allows arbitrary business logic to be called. Whatever is returned
322:                        // is ignored.
323:                        source = SourceUtil.getSource(logoutResourceName, null,
324:                                parameters, this .resolver);
325:                        SourceUtil.toDOM(source);
326:                    } catch (Exception ignore) {
327:                        this .getLogger().error(
328:                                "logout: " + ignore.getMessage(), ignore);
329:                    } finally {
330:                        this.resolver.release(source);
331:                    }
332:                }
333:            }
334:        }
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