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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.core.client.internal;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.InetAddress;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.logging.Level;
import org.eclipse.osee.framework.core.client.BaseCredentialProvider;
import org.eclipse.osee.framework.core.client.GuestCredentialProvider;
import org.eclipse.osee.framework.core.client.ICredentialProvider;
import org.eclipse.osee.framework.core.client.OseeClientProperties;
import org.eclipse.osee.framework.core.client.OseeClientSession;
import org.eclipse.osee.framework.core.client.server.HttpServer;
import org.eclipse.osee.framework.core.client.server.HttpUrlBuilderClient;
import org.eclipse.osee.framework.core.data.IDatabaseInfo;
import org.eclipse.osee.framework.core.data.OseeClientInfo;
import org.eclipse.osee.framework.core.data.OseeCodeVersion;
import org.eclipse.osee.framework.core.data.OseeCredential;
import org.eclipse.osee.framework.core.data.OseeServerContext;
import org.eclipse.osee.framework.core.data.OseeSessionGrant;
import org.eclipse.osee.framework.core.enums.SystemUser;
import org.eclipse.osee.framework.core.exception.OseeAuthenticationRequiredException;
import org.eclipse.osee.framework.core.exception.OseeCoreException;
import org.eclipse.osee.framework.core.exception.OseeExceptions;
import org.eclipse.osee.framework.core.util.HttpProcessor;
import org.eclipse.osee.framework.core.util.HttpProcessor.AcquireResult;
import org.eclipse.osee.framework.jdk.core.util.Strings;
import org.eclipse.osee.framework.logging.BaseStatus;
import org.eclipse.osee.framework.logging.OseeLog;
/**
* @author Roberto E. Escobar
*/
public class InternalClientSessionManager {
public static final String STATUS_ID = "Session Manager";
private static final InternalClientSessionManager instance = new InternalClientSessionManager();
private final OseeClientInfo clientInfo;
private OseeSessionGrant oseeSessionGrant;
private OseeClientSession oseeSession;
private InternalClientSessionManager() {
clearData();
this.clientInfo = new OseeClientInfo();
clientInfo.setClientAddress(HttpServer.getServerAddressForExternalCommunication(),
HttpServer.getDefaultServicePort());
clientInfo.setClientVersion(OseeCodeVersion.getVersion());
try {
clientInfo.setClientMachineName(InetAddress.getLocalHost().getHostName());
} catch (Exception ex) {
clientInfo.setClientMachineName(clientInfo.getClientAddress());
}
}
public static InternalClientSessionManager getInstance() {
return instance;
}
public boolean isSessionValid() {
return oseeSession != null;
}
public IDatabaseInfo getDatabaseInfo() throws OseeAuthenticationRequiredException {
return getOseeSessionGrant().getDatabaseInfo();
}
public OseeSessionGrant getOseeSessionGrant() throws OseeAuthenticationRequiredException {
ensureSessionCreated();
if (isSessionValid()) {
return oseeSessionGrant;
}
throw new OseeAuthenticationRequiredException("Session is invalid - authentication is required");
}
public OseeClientSession getOseeSession() throws OseeAuthenticationRequiredException {
ensureSessionCreated();
if (isSessionValid()) {
return oseeSession;
}
throw new OseeAuthenticationRequiredException("Session is invalid - authentication is required");
}
public void authenticateAsGuest() throws OseeCoreException {
authenticate(new GuestCredentialProvider());
}
public synchronized OseeClientSession authenticate(ICredentialProvider credentialProvider) throws OseeCoreException {
if (!OseeApplicationServer.isApplicationServerAlive()) {
OseeLog.reportStatus(new BaseStatus(STATUS_ID, Level.SEVERE, "Application Server not Available"));
return null;
}
if (!isSessionValid()) {
try {
OseeCredential credential = credentialProvider.getCredential();
clearData();
oseeSessionGrant = internalAcquireSession(credential);
oseeSession =
new OseeClientSession(oseeSessionGrant.getSessionId(), clientInfo.getClientMachineName(),
oseeSessionGrant.getUserToken().getUserId(), clientInfo.getClientAddress(), clientInfo.getPort(),
clientInfo.getVersion(), credential.getAuthenticationProtocol());
} catch (Exception ex) {
OseeLog.reportStatus(new BaseStatus(STATUS_ID, Level.SEVERE, ex));
OseeExceptions.wrapAndThrow(ex);
}
OseeLog.reportStatus(new BaseStatus(STATUS_ID, Level.INFO, "%s BuildType:[%s]", oseeSession,
oseeSessionGrant.getClientBuildDesignation()));
}
return oseeSession;
}
public void ensureSessionCreated() {
if (!isSessionValid()) {
try {
authenticate(new BaseCredentialProvider() {
@Override
public OseeCredential getCredential() {
OseeCredential credential = super.getCredential();
String userName =
OseeClientProperties.isInDbInit() ? SystemUser.BootStrap.getName() : System.getProperty(
"user.name").toLowerCase();
credential.setUserName(userName);
credential.setDomain("");
credential.setPassword("");
credential.setAuthenticationProtocol(OseeClientProperties.getAuthenticationProtocol());
return credential;
}
});
} catch (Exception ex) {
OseeLog.log(CoreClientActivator.class, Level.SEVERE, ex);
try {
authenticateAsGuest();
} catch (Exception ex1) {
OseeLog.log(CoreClientActivator.class, Level.SEVERE, ex1);
}
}
}
}
public void releaseSession() throws OseeCoreException {
if (isSessionValid()) {
internalReleaseSession(getOseeSessionGrant().getSessionId());
}
}
private void internalReleaseSession(String sessionId) throws OseeCoreException {
Map<String, String> parameters = new HashMap<String, String>();
parameters.put("operation", "release");
parameters.put("sessionId", sessionId);
try {
String url =
HttpUrlBuilderClient.getInstance().getOsgiServletServiceUrl(OseeServerContext.SESSION_CONTEXT, parameters);
String reponse = HttpProcessor.post(new URL(url));
OseeLog.log(CoreClientActivator.class, Level.INFO, reponse);
clearData();
} catch (Exception ex) {
OseeExceptions.wrapAndThrow(ex);
}
}
public List<String> getAuthenticationProtocols() {
List<String> toReturn = new ArrayList<String>();
try {
Map<String, String> parameters = new HashMap<String, String>();
String url =
HttpUrlBuilderClient.getInstance().getOsgiServletServiceUrl(OseeServerContext.SESSION_CONTEXT, parameters);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
AcquireResult result = HttpProcessor.acquire(new URL(url), outputStream);
if (result.getCode() == HttpURLConnection.HTTP_OK) {
String protocols = outputStream.toString("UTF-8");
if (Strings.isValid(protocols)) {
String[] results = protocols.split("[\\[\\]\\s,]+");
for (String entry : results) {
if (Strings.isValid(entry)) {
toReturn.add(entry);
}
}
}
}
} catch (Exception ex) {
OseeLog.log(CoreClientActivator.class, Level.SEVERE, ex);
}
return toReturn;
}
private void clearData() {
this.oseeSession = null;
this.oseeSessionGrant = null;
}
private OseeSessionGrant internalAcquireSession(OseeCredential credential) throws OseeCoreException, MalformedURLException {
OseeSessionGrant session = null;
Map<String, String> parameters = new HashMap<String, String>();
parameters.put("operation", "create");
String url =
HttpUrlBuilderClient.getInstance().getOsgiServletServiceUrl(OseeServerContext.SESSION_CONTEXT, parameters);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
AcquireResult result =
HttpProcessor.post(new URL(url), asInputStream(credential), "text/xml", "UTF-8", outputStream);
if (result.getCode() == HttpURLConnection.HTTP_ACCEPTED) {
session = fromEncryptedBytes(outputStream.toByteArray());
} else {
throw new OseeCoreException("Error during create session request - code [%s]\n%s", result.getCode(),
outputStream.toString());
}
return session;
}
private static ByteArrayInputStream asInputStream(OseeCredential credential) throws OseeCoreException {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
credential.write(outputStream);
//TODO ENCRYPT DATA
return new ByteArrayInputStream(outputStream.toByteArray());
}
private static OseeSessionGrant fromEncryptedBytes(byte[] rawData) throws OseeCoreException {
OseeSessionGrant session = null;
InputStream inputStream = null;
try {
//TODO DECRYPT DATA
inputStream = new ByteArrayInputStream(rawData);
session = OseeSessionGrant.fromXml(inputStream);
} finally {
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException ex) {
OseeExceptions.wrapAndThrow(ex);
}
}
}
return session;
}
}
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