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// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jdisc.http.server.jetty;
import com.yahoo.jdisc.http.ConnectorConfig;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.handler.HandlerWrapper;
import org.eclipse.jetty.util.URIUtil;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static com.yahoo.jdisc.http.server.jetty.HttpServletRequestUtils.getConnectorLocalPort;
/**
* A secure redirect handler inspired by {@link org.eclipse.jetty.server.handler.SecuredRedirectHandler}.
*
* @author bjorncs
*/
class SecuredRedirectHandler extends HandlerWrapper {
private static final String HEALTH_CHECK_PATH = "/status.html";
private final Map<Integer, Integer> redirectMap;
SecuredRedirectHandler(List<ConnectorConfig> connectorConfigs) {
this.redirectMap = createRedirectMap(connectorConfigs);
}
@Override
public void handle(String target, Request request, HttpServletRequest servletRequest, HttpServletResponse servletResponse) throws IOException, ServletException {
int localPort = getConnectorLocalPort(servletRequest);
if (!redirectMap.containsKey(localPort)) {
_handler.handle(target, request, servletRequest, servletResponse);
return;
}
servletResponse.setContentLength(0);
if (!servletRequest.getRequestURI().equals(HEALTH_CHECK_PATH)) {
servletResponse.sendRedirect(
URIUtil.newURI("https", request.getServerName(), redirectMap.get(localPort), request.getRequestURI(), request.getQueryString()));
}
request.setHandled(true);
}
private static Map<Integer, Integer> createRedirectMap(List<ConnectorConfig> connectorConfigs) {
var redirectMap = new HashMap<Integer, Integer>();
for (ConnectorConfig connectorConfig : connectorConfigs) {
if (connectorConfig.secureRedirect().enabled()) {
redirectMap.put(connectorConfig.listenPort(), connectorConfig.secureRedirect().port());
}
}
return redirectMap;
}
}
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