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// Copyright 2017 Yahoo Holdings. 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.Response;
import com.yahoo.jdisc.http.HttpRequest;
import com.yahoo.jdisc.http.servlet.ServletRequest;
import com.yahoo.jdisc.service.CurrentContainer;
import org.eclipse.jetty.util.Utf8Appendable;
import javax.servlet.http.HttpServletRequest;
import java.net.InetSocketAddress;
import java.net.URI;
import java.security.cert.X509Certificate;
import java.util.Enumeration;
import static com.yahoo.jdisc.http.core.HttpServletRequestUtils.getConnection;
/**
* @author Simon Thoresen Hult
* @author bjorncs
*/
class HttpRequestFactory {
public static HttpRequest newJDiscRequest(CurrentContainer container, HttpServletRequest servletRequest) {
try {
HttpRequest httpRequest = HttpRequest.newServerRequest(
container,
getUri(servletRequest),
HttpRequest.Method.valueOf(servletRequest.getMethod()),
HttpRequest.Version.fromString(servletRequest.getProtocol()),
new InetSocketAddress(servletRequest.getRemoteAddr(), servletRequest.getRemotePort()),
getConnection(servletRequest).getCreatedTimeStamp());
httpRequest.context().put(ServletRequest.JDISC_REQUEST_X509CERT, getCertChain(servletRequest));
return httpRequest;
} catch (Utf8Appendable.NotUtf8Exception e) {
throw createBadQueryException(e);
}
}
public static URI getUri(HttpServletRequest servletRequest) {
String query = extraQuote(servletRequest.getQueryString());
try {
return URI.create(servletRequest.getRequestURL() + (query != null ? '?' + query : ""));
} catch (IllegalArgumentException e) {
throw createBadQueryException(e);
}
}
private static RequestException createBadQueryException(IllegalArgumentException e) {
return new RequestException(Response.Status.BAD_REQUEST, "Query violates RFC 2396: " + e.getMessage(), e);
}
public static void copyHeaders(HttpServletRequest from, HttpRequest to) {
for (Enumeration<String> it = from.getHeaderNames(); it.hasMoreElements(); ) {
String key = it.nextElement();
for (Enumeration<String> value = from.getHeaders(key); value.hasMoreElements(); ) {
to.headers().add(key, value.nextElement());
}
}
}
// TODO Remove this ugly, non-complete escaping in Vespa 7
private static String extraQuote(String queryString) {
// TODO: Use an URI builder
if (queryString == null) return null;
int toAndIncluding = -1;
for (int i = 0; i < queryString.length(); ++i) {
if (quote(queryString.charAt(i)) != null) {
break;
}
toAndIncluding = i;
}
String washed;
if (toAndIncluding != (queryString.length() - 1)) {
StringBuilder w = new StringBuilder(queryString.substring(0, toAndIncluding + 1));
for (int i = toAndIncluding + 1; i < queryString.length(); ++i) {
String s = quote(queryString.charAt(i));
if (s == null) {
w.append(queryString.charAt(i));
} else {
w.append(s);
}
}
washed = w.toString();
} else {
washed = queryString;
}
return washed;
}
private static String quote(char c) {
switch(c) {
case '\\':
return "%5C";
case '^':
return "%5E";
case '{':
return "%7B";
case '|':
return "%7C";
case '}':
return "%7D";
default:
return null;
}
}
private static X509Certificate[] getCertChain(HttpServletRequest servletRequest) {
return (X509Certificate[]) servletRequest.getAttribute("javax.servlet.request.X509Certificate");
}
}
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