CookieUtil.java — netty Source File

Source Code

/*
 * Copyright 2015 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package io.netty.handler.codec.http.cookie;

import io.netty.handler.codec.http.HttpConstants;
import io.netty.util.internal.InternalThreadLocalMap;

import java.util.BitSet;

final class CookieUtil {

    private static final BitSet VALID_COOKIE_NAME_OCTETS = validCookieNameOctets();

    private static final BitSet VALID_COOKIE_VALUE_OCTETS = validCookieValueOctets();

    private static final BitSet VALID_COOKIE_ATTRIBUTE_VALUE_OCTETS = validCookieAttributeValueOctets();

    // token = 1*<any CHAR except CTLs or separators>
    // separators = "(" | ")" | "<" | ">" | "@"
    // | "," | ";" | ":" | "\" | <">
    // | "/" | "[" | "]" | "?" | "="
    // | "{" | "}" | SP | HT
    private static BitSet validCookieNameOctets() {
        BitSet bits = new BitSet();
        for (int i = 32; i < 127; i++) {
            bits.set(i);
        }
        int[] separators = new int[]
                { '(', ')', '<', '>', '@', ',', ';', ':', '\\', '"', '/', '[', ']', '?', '=', '{', '}', ' ', '\t' };
        for (int separator : separators) {
            bits.set(separator, false);
        }
        return bits;
    }

    // cookie-octet = %x21 / %x23-2B / %x2D-3A / %x3C-5B / %x5D-7E
    // US-ASCII characters excluding CTLs, whitespace, DQUOTE, comma, semicolon, and backslash
    private static BitSet validCookieValueOctets() {
        BitSet bits = new BitSet();
        bits.set(0x21);
        for (int i = 0x23; i <= 0x2B; i++) {
            bits.set(i);
        }
        for (int i = 0x2D; i <= 0x3A; i++) {
            bits.set(i);
        }
        for (int i = 0x3C; i <= 0x5B; i++) {
// ... (124 more lines)