76 lines
2.2 KiB
Java
76 lines
2.2 KiB
Java
package org.gcube.common.portal;
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import java.io.UnsupportedEncodingException;
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import java.security.Key;
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import javax.servlet.http.Cookie;
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import javax.servlet.http.HttpServletRequest;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.liferay.portal.model.Company;
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import com.liferay.portal.service.CompanyLocalServiceUtil;
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import com.liferay.util.Encryptor;
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/**
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*
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* @author Massimiliano Assante, CNR-ISTI
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*
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*/
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public class ContextUserUtil {
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private static final Logger _log = LoggerFactory.getLogger(PortalContext.class);
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/**
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*
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* @param httpServletRequest
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* @returnthe current user LR id
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*/
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protected static Long getCurrentUserId(HttpServletRequest httpServletRequest) {
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Cookie[] cookies = httpServletRequest.getCookies();
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String userId = null;
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String companyId = null;
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if (cookies != null) {
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for (Cookie c : cookies) {
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if ("COMPANY_ID".equals(c.getName())) {
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companyId = c.getValue();
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} else if ("ID".equals(c.getName())) {
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userId = hexStringToStringByAscii(c.getValue());
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}
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}
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if (userId != null && companyId != null) {
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try {
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Company company = CompanyLocalServiceUtil.getCompany(Long.parseLong(companyId));
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Key key = company.getKeyObj();
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String userIdPlain = Encryptor.decrypt(key, userId);
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return Long.valueOf(userIdPlain);
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} catch (Exception pException) {
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_log.warn("Exception while getting current user from cookie, returning current user from http header");
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String userHeaderIdString = httpServletRequest.getHeader(PortalContext.USER_ID_ATTR_NAME);
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long userIdToReturn = -1;
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try {
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userIdToReturn = Long.parseLong(userHeaderIdString);
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} catch (NumberFormatException e) {
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_log.error("The userId is not a number -> " + userHeaderIdString);
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}
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return userIdToReturn;
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}
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}
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}
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return null;
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}
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private static String hexStringToStringByAscii(String hexString) {
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byte[] bytes = new byte[hexString.length() / 2];
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for (int i = 0; i < hexString.length() / 2; i++) {
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String oneHexa = hexString.substring(i * 2, i * 2 + 2);
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bytes[i] = Byte.parseByte(oneHexa, 16);
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}
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try {
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return new String(bytes, "ASCII");
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} catch (UnsupportedEncodingException e) {
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throw new RuntimeException(e);
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}
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}
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}
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