/* * Copyright (c) 2021, 2023, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package jdk.internal.net.http.qpack; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Objects; /* * A header table with most common header fields. * This table was generated by analyzing actual Internet traffic in 2018 * and is a part of "QPACK: Header Compression for HTTP/3" RFC. */ public final class StaticTable implements HeadersTable { /* An immutable list of static header fields */ public static final List HTTP3_HEADER_FIELDS = List.of( new HeaderField(":authority"), new HeaderField(":path", "/"), new HeaderField("age", "0"), new HeaderField("content-disposition"), new HeaderField("content-length", "0"), new HeaderField("cookie"), new HeaderField("date"), new HeaderField("etag"), new HeaderField("if-modified-since"), new HeaderField("if-none-match"), new HeaderField("last-modified"), new HeaderField("link"), new HeaderField("location"), new HeaderField("referer"), new HeaderField("set-cookie"), new HeaderField(":method", "CONNECT"), new HeaderField(":method", "DELETE"), new HeaderField(":method", "GET"), new HeaderField(":method", "HEAD"), new HeaderField(":method", "OPTIONS"), new HeaderField(":method", "POST"), new HeaderField(":method", "PUT"), new HeaderField(":scheme", "http"), new HeaderField(":scheme", "https"), new HeaderField(":status", "103"), new HeaderField(":status", "200"), new HeaderField(":status", "304"), new HeaderField(":status", "404"), new HeaderField(":status", "503"), new HeaderField("accept", "*/*"), new HeaderField("accept", "application/dns-message"), new HeaderField("accept-encoding", "gzip, deflate, br"), new HeaderField("accept-ranges", "bytes"), new HeaderField("access-control-allow-headers", "cache-control"), new HeaderField("access-control-allow-headers", "content-type"), new HeaderField("access-control-allow-origin", "*"), new HeaderField("cache-control", "max-age=0"), new HeaderField("cache-control", "max-age=2592000"), new HeaderField("cache-control", "max-age=604800"), new HeaderField("cache-control", "no-cache"), new HeaderField("cache-control", "no-store"), new HeaderField("cache-control", "public, max-age=31536000"), new HeaderField("content-encoding", "br"), new HeaderField("content-encoding", "gzip"), new HeaderField("content-type", "application/dns-message"), new HeaderField("content-type", "application/javascript"), new HeaderField("content-type", "application/json"), new HeaderField("content-type", "application/x-www-form-urlencoded"), new HeaderField("content-type", "image/gif"), new HeaderField("content-type", "image/jpeg"), new HeaderField("content-type", "image/png"), new HeaderField("content-type", "text/css"), new HeaderField("content-type", "text/html; charset=utf-8"), new HeaderField("content-type", "text/plain"), new HeaderField("content-type", "text/plain;charset=utf-8"), new HeaderField("range", "bytes=0-"), new HeaderField("strict-transport-security", "max-age=31536000"), new HeaderField("strict-transport-security", "max-age=31536000; includesubdomains"), new HeaderField("strict-transport-security", "max-age=31536000; includesubdomains; preload"), new HeaderField("vary", "accept-encoding"), new HeaderField("vary", "origin"), new HeaderField("x-content-type-options", "nosniff"), new HeaderField("x-xss-protection", "1; mode=block"), new HeaderField(":status", "100"), new HeaderField(":status", "204"), new HeaderField(":status", "206"), new HeaderField(":status", "302"), new HeaderField(":status", "400"), new HeaderField(":status", "403"), new HeaderField(":status", "421"), new HeaderField(":status", "425"), new HeaderField(":status", "500"), new HeaderField("accept-language"), new HeaderField("access-control-allow-credentials", "FALSE"), new HeaderField("access-control-allow-credentials", "TRUE"), new HeaderField("access-control-allow-headers", "*"), new HeaderField("access-control-allow-methods", "get"), new HeaderField("access-control-allow-methods", "get, post, options"), new HeaderField("access-control-allow-methods", "options"), new HeaderField("access-control-expose-headers", "content-length"), new HeaderField("access-control-request-headers", "content-type"), new HeaderField("access-control-request-method", "get"), new HeaderField("access-control-request-method", "post"), new HeaderField("alt-svc", "clear"), new HeaderField("authorization"), new HeaderField("content-security-policy", "script-src 'none'; object-src 'none'; base-uri 'none'"), new HeaderField("early-data", "1"), new HeaderField("expect-ct"), new HeaderField("forwarded"), new HeaderField("if-range"), new HeaderField("origin"), new HeaderField("purpose", "prefetch"), new HeaderField("server"), new HeaderField("timing-allow-origin", "*"), new HeaderField("upgrade-insecure-requests", "1"), new HeaderField("user-agent"), new HeaderField("x-forwarded-for"), new HeaderField("x-frame-options", "deny"), new HeaderField("x-frame-options", "sameorigin") ); public static final StaticTable HTTP3 = new StaticTable(HTTP3_HEADER_FIELDS); private final List headerFields; private final Map> indicesMap; private StaticTable(List headerFields) { this.headerFields = headerFields; this.indicesMap = buildIndicesMap(headerFields); } @Override public HeaderField get(long index) { if (index >= headerFields.size()) { throw new IllegalArgumentException("Invalid static table entry index"); } return headerFields.get((int)index); } @Override public long insert(String name, String value) { throw new UnsupportedOperationException("Operation not supported by static tables"); } @Override public long search(String name, String value) { Map values = indicesMap.get(name); // 0 return value if no match is found in the static table int searchResult = 0; if (values != null) { Integer idx = values.get(value); if (idx != null) { searchResult = idx + 1; } else { // Only name is found - return first id from indices for the name provided searchResult = -values.values().iterator().next() - 1; } } return searchResult; } private static Map> buildIndicesMap(List fields) { int numEntries = fields.size(); Map> map = new HashMap<>(numEntries); for (int i = 0; i < numEntries; i++) { HeaderField f = fields.get(i); Map values = map.computeIfAbsent(f.name(), _ -> new HashMap<>()); values.put(f.value(), i); } return map; } }