/
PortalCORSServletFilter.java
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/
PortalCORSServletFilter.java
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/**
* SPDX-FileCopyrightText: (c) 2000 Liferay, Inc. https://liferay.com
* SPDX-License-Identifier: LGPL-2.1-or-later OR LicenseRef-Liferay-DXP-EULA-2.0.0-2023-06
*/
package com.liferay.portal.remote.cors.internal.servlet.filter;
import com.liferay.oauth2.provider.scope.liferay.OAuth2ProviderScopeLiferayAccessControlContext;
import com.liferay.petra.string.StringPool;
import com.liferay.petra.url.pattern.mapper.URLPatternMapper;
import com.liferay.portal.configuration.persistence.listener.ConfigurationModelListener;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.model.CompanyConstants;
import com.liferay.portal.kernel.model.User;
import com.liferay.portal.kernel.security.permission.PermissionChecker;
import com.liferay.portal.kernel.security.permission.PermissionThreadLocal;
import com.liferay.portal.kernel.servlet.BaseFilter;
import com.liferay.portal.kernel.servlet.HttpMethods;
import com.liferay.portal.kernel.util.HashMapBuilder;
import com.liferay.portal.kernel.util.HashMapDictionary;
import com.liferay.portal.kernel.util.HttpComponentsUtil;
import com.liferay.portal.kernel.util.Portal;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.remote.cors.internal.CORSSupport;
import com.liferay.portal.remote.cors.internal.configuration.persistence.listener.PortalCORSConfigurationModelListener;
import com.liferay.portal.remote.cors.internal.util.PortalCORSRegistryUtil;
import com.liferay.portal.util.PropsValues;
import java.util.Map;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceRegistration;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Deactivate;
import org.osgi.service.component.annotations.Reference;
/**
* @author Arthur Chan
* @author Carlos Sierra Andrés
*/
@Component(
property = {
"before-filter=Upload Servlet Request Filter", "dispatcher=FORWARD",
"dispatcher=REQUEST", "servlet-context-name=",
"servlet-filter-name=Portal CORS Servlet Filter", "url-pattern=/*"
},
service = Filter.class
)
public class PortalCORSServletFilter extends BaseFilter {
@Override
public void init(FilterConfig filterConfig) {
ServletContext servletContext = filterConfig.getServletContext();
_contextPath = servletContext.getContextPath();
}
@Override
public boolean isFilterEnabled(
HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse) {
if (CORSSupport.isCORSRequest(httpServletRequest::getHeader)) {
return true;
}
return false;
}
@Activate
protected void activate(
BundleContext bundleContext, Map<String, Object> properties) {
_serviceRegistration = bundleContext.registerService(
ConfigurationModelListener.class,
new PortalCORSConfigurationModelListener(
PortalCORSRegistryUtil.getConfigurationPidsProperties()),
new HashMapDictionary<>(
HashMapBuilder.putAll(
properties
).put(
"model.class.name",
"com.liferay.portal.remote.cors.configuration." +
"PortalCORSConfiguration"
).build()));
}
@Deactivate
protected void deactivate() {
if (_serviceRegistration != null) {
_serviceRegistration.unregister();
}
}
@Override
protected Log getLog() {
return _log;
}
@Override
protected void processFilter(
HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse, FilterChain filterChain)
throws Exception {
long companyId = _portal.getCompanyId(httpServletRequest);
if (companyId == CompanyConstants.SYSTEM) {
return;
}
URLPatternMapper<CORSSupport> urlPatternMapper = _getURLPatternMapper(
companyId);
if (urlPatternMapper != null) {
CORSSupport corsSupport = urlPatternMapper.getValue(
_getURI(httpServletRequest));
if (corsSupport != null) {
if (StringUtil.equals(
HttpMethods.OPTIONS, httpServletRequest.getMethod())) {
if (corsSupport.isValidCORSPreflightRequest(
httpServletRequest::getHeader)) {
corsSupport.writeResponseHeaders(
httpServletRequest::getHeader,
httpServletResponse::setHeader);
}
return;
}
if (corsSupport.isValidCORSRequest(
httpServletRequest.getMethod(),
httpServletRequest::getHeader) &&
(PropsValues.CORS_DISABLE_AUTHORIZATION_CONTEXT_CHECK ||
OAuth2ProviderScopeLiferayAccessControlContext.
isOAuth2AuthVerified() ||
_isGuest())) {
corsSupport.writeResponseHeaders(
httpServletRequest::getHeader,
httpServletResponse::setHeader);
}
}
}
filterChain.doFilter(httpServletRequest, httpServletResponse);
}
private String _getURI(HttpServletRequest httpServletRequest) {
String uri = httpServletRequest.getRequestURI();
if (Validator.isNotNull(_contextPath) &&
!_contextPath.equals(StringPool.SLASH) &&
uri.startsWith(_contextPath)) {
uri = uri.substring(_contextPath.length());
}
return HttpComponentsUtil.normalizePath(uri);
}
private URLPatternMapper<CORSSupport> _getURLPatternMapper(long companyId) {
URLPatternMapper<CORSSupport> urlPatternMapper =
PortalCORSRegistryUtil.getUrlPatternMappers(companyId);
if (urlPatternMapper != null) {
return urlPatternMapper;
}
urlPatternMapper = PortalCORSRegistryUtil.getUrlPatternMappers(
CompanyConstants.SYSTEM);
if (urlPatternMapper != null) {
return urlPatternMapper;
}
return null;
}
private boolean _isGuest() {
PermissionChecker permissionChecker =
PermissionThreadLocal.getPermissionChecker();
if (permissionChecker == null) {
return true;
}
User user = permissionChecker.getUser();
return user.isGuestUser();
}
private static final Log _log = LogFactoryUtil.getLog(
PortalCORSServletFilter.class);
private String _contextPath;
@Reference
private Portal _portal;
private ServiceRegistration<ConfigurationModelListener>
_serviceRegistration;
}