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org.eclipse.jetty.http.HttpHeader Maven / Gradle / Ivy
//
// ========================================================================
// Copyright (c) 1995 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
// which is available at https://www.apache.org/licenses/LICENSE-2.0.
//
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
// ========================================================================
//
package org.eclipse.jetty.http;
import java.nio.ByteBuffer;
import java.util.EnumSet;
import org.eclipse.jetty.util.Index;
import org.eclipse.jetty.util.StringUtil;
public enum HttpHeader
{
/**
* General Fields.
*/
CONNECTION("Connection"),
CACHE_CONTROL("Cache-Control"),
DATE("Date"),
PRAGMA("Pragma"),
PROXY_CONNECTION("Proxy-Connection"),
TRAILER("Trailer"),
TRANSFER_ENCODING("Transfer-Encoding"),
UPGRADE("Upgrade"),
VIA("Via"),
WARNING("Warning"),
NEGOTIATE("Negotiate"),
/**
* Entity Fields.
*/
ALLOW("Allow"),
CONTENT_DISPOSITION("Content-Disposition"),
CONTENT_ENCODING("Content-Encoding"),
CONTENT_LANGUAGE("Content-Language"),
CONTENT_LENGTH("Content-Length"),
CONTENT_LOCATION("Content-Location"),
CONTENT_MD5("Content-MD5"),
CONTENT_RANGE("Content-Range"),
CONTENT_TRANSFER_ENCODING("Content-Transfer-Encoding"),
CONTENT_TYPE("Content-Type"),
EXPIRES("Expires"),
LAST_MODIFIED("Last-Modified"),
/**
* Request Fields.
*/
ACCEPT("Accept"),
ACCEPT_CHARSET("Accept-Charset"),
ACCEPT_ENCODING("Accept-Encoding"),
ACCEPT_LANGUAGE("Accept-Language"),
ACCESS_CONTROL_REQUEST_HEADERS("Access-Control-Request-Headers"),
ACCESS_CONTROL_REQUEST_METHOD("Access-Control-Request-Method"),
AUTHORIZATION("Authorization"),
EXPECT("Expect"),
FORWARDED("Forwarded"),
FROM("From"),
HOST("Host"),
IF_MATCH("If-Match"),
IF_MODIFIED_SINCE("If-Modified-Since"),
IF_NONE_MATCH("If-None-Match"),
IF_RANGE("If-Range"),
IF_UNMODIFIED_SINCE("If-Unmodified-Since"),
KEEP_ALIVE("Keep-Alive"),
MAX_FORWARDS("Max-Forwards"),
PROXY_AUTHORIZATION("Proxy-Authorization"),
RANGE("Range"),
REQUEST_RANGE("Request-Range"),
REFERER("Referer"),
TE("TE"),
USER_AGENT("User-Agent"),
X_FORWARDED_FOR("X-Forwarded-For"),
X_FORWARDED_PORT("X-Forwarded-Port"),
X_FORWARDED_PROTO("X-Forwarded-Proto"),
X_FORWARDED_SERVER("X-Forwarded-Server"),
X_FORWARDED_HOST("X-Forwarded-Host"),
/**
* Response Fields.
*/
ACCEPT_RANGES("Accept-Ranges"),
ACCESS_CONTROL_ALLOW_ORIGIN("Access-Control-Allow-Origin"),
ACCESS_CONTROL_ALLOW_METHODS("Access-Control-Allow-Methods"),
ACCESS_CONTROL_ALLOW_HEADERS("Access-Control-Allow-Headers"),
ACCESS_CONTROL_MAX_AGE("Access-Control-Max-Age"),
ACCESS_CONTROL_ALLOW_CREDENTIALS("Access-Control-Allow-Credentials"),
ACCESS_CONTROL_EXPOSE_HEADERS("Access-Control-Expose-Headers"),
AGE("Age"),
ALT_SVC("Alt-Svc"),
ETAG("ETag"),
LINK("Link"),
LOCATION("Location"),
PROXY_AUTHENTICATE("Proxy-Authenticate"),
RETRY_AFTER("Retry-After"),
SERVER("Server"),
SERVLET_ENGINE("Servlet-Engine"),
TIMING_ALLOW_ORIGIN("Timing-Allow-Origin"),
VARY("Vary"),
WWW_AUTHENTICATE("WWW-Authenticate"),
/**
* WebSocket Fields.
*/
ORIGIN("Origin"),
SEC_WEBSOCKET_KEY("Sec-WebSocket-Key"),
SEC_WEBSOCKET_VERSION("Sec-WebSocket-Version"),
SEC_WEBSOCKET_EXTENSIONS("Sec-WebSocket-Extensions"),
SEC_WEBSOCKET_SUBPROTOCOL("Sec-WebSocket-Protocol"),
SEC_WEBSOCKET_ACCEPT("Sec-WebSocket-Accept"),
/**
* Other Fields.
*/
COOKIE("Cookie"),
SET_COOKIE("Set-Cookie"),
SET_COOKIE2("Set-Cookie2"),
MIME_VERSION("MIME-Version"),
IDENTITY("identity"),
X_POWERED_BY("X-Powered-By"),
HTTP2_SETTINGS("HTTP2-Settings"),
STRICT_TRANSPORT_SECURITY("Strict-Transport-Security"),
/**
* HTTP2 Fields.
*/
C_METHOD(":method", true),
C_SCHEME(":scheme", true),
C_AUTHORITY(":authority", true),
C_PATH(":path", true),
C_STATUS(":status", true),
C_PROTOCOL(":protocol");
public static final EnumSet CONTENT_HEADERS;
public static final EnumSet CONTENT_HEADERS_304;
static
{
CONTENT_HEADERS = EnumSet.of(
CONTENT_TYPE, CONTENT_LENGTH, CONTENT_ENCODING, CONTENT_LANGUAGE, CONTENT_RANGE, CONTENT_MD5, CONTENT_LOCATION, TRANSFER_ENCODING, CACHE_CONTROL, LAST_MODIFIED, EXPIRES, VARY, ETAG
);
CONTENT_HEADERS_304 = EnumSet.copyOf(CONTENT_HEADERS);
CONTENT_HEADERS_304.remove(ETAG);
}
public static final Index CACHE = new Index.Builder()
.caseSensitive(false)
.withAll(HttpHeader.values(), HttpHeader::toString)
.build();
private final String _string;
private final String _lowerCase;
private final byte[] _bytes;
private final byte[] _bytesColonSpace;
private final ByteBuffer _buffer;
private final boolean _pseudo;
HttpHeader(String s)
{
this(s, false);
}
HttpHeader(String s, boolean pseudo)
{
_string = s;
_lowerCase = StringUtil.asciiToLowerCase(s);
_bytes = StringUtil.getBytes(s);
_bytesColonSpace = StringUtil.getBytes(s + ": ");
_buffer = ByteBuffer.wrap(_bytes);
_pseudo = pseudo;
}
public String lowerCaseName()
{
return _lowerCase;
}
public ByteBuffer toBuffer()
{
return _buffer.asReadOnlyBuffer();
}
public byte[] getBytes()
{
return _bytes;
}
public byte[] getBytesColonSpace()
{
return _bytesColonSpace;
}
public boolean is(String s)
{
return StringUtil.asciiEqualsIgnoreCase(_string, s);
}
/**
* @return True if the header is a HTTP2 Pseudo header (eg ':path')
*/
public boolean isPseudo()
{
return _pseudo;
}
public String asString()
{
return _string;
}
@Override
public String toString()
{
return _string;
}
}
