Created
January 23, 2012 16:50
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package pt.agap2.custom_login; | |
import java.util.regex.Pattern; | |
import javax.servlet.http.HttpServletRequest; | |
import javax.servlet.http.HttpServletResponse; | |
import org.apache.commons.logging.Log; | |
import org.apache.commons.logging.LogFactory; | |
import pt.agap2.util.EncryptConstants; | |
import pt.agap2.util.TripleDesImpl; | |
import com.liferay.portal.model.User; | |
import com.liferay.portal.security.auth.AutoLogin; | |
import com.liferay.portal.security.auth.AutoLoginException; | |
import com.liferay.portal.service.UserLocalServiceUtil; | |
import com.liferay.portal.util.PortalUtil; | |
public class Agap2CustomLogin implements AutoLogin { | |
Log _log = LogFactory.getLog(Agap2CustomLogin.class); | |
private final long TICKS_AT_EPOCH = 621355968000000000L; | |
private final long TICKS_PER_MILLISECOND = 10000L; | |
private final long DELTA = 30000L; | |
public String[] login(HttpServletRequest request, | |
HttpServletResponse response) throws AutoLoginException { | |
String[] credentials = null; | |
try { | |
long companyId = PortalUtil.getCompanyId(request); | |
String authEncStr = request.getParameter("auth"); | |
Long currentTimeInMilliseconds = System.currentTimeMillis(); | |
String authDEncStr = TripleDesImpl.decrypt(authEncStr, EncryptConstants.CRYPT_KEY); | |
String userName = null; | |
if ( authDEncStr != null && Pattern.compile(Pattern.quote(EncryptConstants.SHARED_EXTERNAL_SITES_GUID), Pattern.CASE_INSENSITIVE).matcher(authDEncStr).find()){ | |
authDEncStr = authDEncStr.substring(EncryptConstants.SHARED_EXTERNAL_SITES_GUID.length()); | |
String strTicks = authDEncStr.substring(authDEncStr.indexOf("-")+1); | |
long ticks = Long.valueOf(strTicks); | |
long requestTimeInMiliseconds = (ticks - TICKS_AT_EPOCH) / TICKS_PER_MILLISECOND; | |
// a string de autenticação apenas é válida por DELTA segundos depois de gerada. | |
if( (currentTimeInMilliseconds-requestTimeInMiliseconds) <= DELTA) | |
userName = authDEncStr.substring(0, authDEncStr.indexOf("-")); | |
else | |
throw new AutoLoginException("Time Exceeded"); | |
} | |
User user = UserLocalServiceUtil.getUserByScreenName(companyId, | |
userName); | |
long userId = user.getUserId(); | |
String password = user.getPassword(); | |
credentials = new String[3]; | |
credentials[0] = Long.toString(userId); | |
credentials[1] = password; | |
credentials[2] = Boolean.TRUE.toString(); | |
} catch (Exception e) { | |
_log.warn(e.getMessage()); | |
throw new AutoLoginException(e); | |
} | |
return credentials; | |
} | |
} |
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