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Traversal Using Relays around NAT
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/* license: https://mit-license.org
 *
 *  TURN: Traversal Using Relays around NAT
 *
 *                                Written in 2020 by Moky 
 *
 * ==============================================================================
 * The MIT License (MIT)
 *
 * Copyright (c) 2020 Albert Moky
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 * ==============================================================================
 */
package chat.dim.turn.values;

import chat.dim.stun.valus.XorMappedAddressValue;
import chat.dim.tlv.Length;
import chat.dim.tlv.Tag;
import chat.dim.tlv.Value;
import chat.dim.type.ByteArray;

/**  14.3.  XOR-PEER-ADDRESS
 *
 *        The XOR-PEER-ADDRESS specifies the address and port of the peer as
 *        seen from the TURN server.  (For example, the peer's server-reflexive
 *        transport address if the peer is behind a NAT.)  It is encoded in the
 *        same way as XOR-MAPPED-ADDRESS [RFC5389].
 */
public class XorPeerAddressValue extends XorMappedAddressValue {

    public XorPeerAddressValue(ByteArray data, String ip, int port, byte family) {
        super(data, ip, port, family);
    }

    //
    //  Factories
    //

    public static XorPeerAddressValue from(XorPeerAddressValue value) {
        return value;
    }

    public static XorPeerAddressValue from(XorMappedAddressValue value) {
        return new XorPeerAddressValue(value, value.ip, value.port, value.family);
    }

    public static XorPeerAddressValue create(ByteArray data, ByteArray factor) {
        XorMappedAddressValue value = XorMappedAddressValue.create(data, factor);
        return value == null ? null : from(value);
    }

    public static XorPeerAddressValue create(String ip, int port, byte family, ByteArray factor) {
        return from(XorMappedAddressValue.create(ip, port, family, factor));
    }

    public static XorPeerAddressValue create(String ip, int port, ByteArray factor) {
        return from(XorMappedAddressValue.create(ip, port, FAMILY_IPV4, factor));
    }

    // parse value with tag & length
    public static Value parse(ByteArray data, Tag tag, Length length) {
        return from(data);
    }
}