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/*
 * Copyright 2018 Netflix, Inc.
 *
 *      Licensed 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
 *
 *          http://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 com.netflix.zuul.context;

import com.google.common.collect.ImmutableList;
import com.netflix.client.config.IClientConfig;
import com.netflix.zuul.filters.ZuulFilter;
import com.netflix.zuul.message.http.HttpRequestMessage;
import com.netflix.zuul.message.http.HttpResponseMessage;
import com.netflix.zuul.niws.RequestAttempts;
import com.netflix.zuul.passport.CurrentPassport;
import com.netflix.zuul.stats.status.StatusCategory;
import io.netty.channel.Channel;
import java.net.InetAddress;
import java.util.Map;
import javax.inject.Provider;

/**
 * Common Context Keys
 *
 * Author: Arthur Gonigberg
 * Date: November 21, 2017
 */
public class CommonContextKeys {

    public static final SessionContext.Key STATUS_CATEGORY = SessionContext.newKey("status_category");
    public static final SessionContext.Key STATUS_CATEGORY_REASON =
            SessionContext.newKey("status_category_reason");
    public static final SessionContext.Key ORIGIN_STATUS_CATEGORY =
            SessionContext.newKey("origin_status_category");
    public static final SessionContext.Key ORIGIN_STATUS_CATEGORY_REASON =
            SessionContext.newKey("origin_status_category_reason");
    public static final SessionContext.Key ORIGIN_STATUS = SessionContext.newKey("origin_status");
    public static final SessionContext.Key REQUEST_ATTEMPTS =
            SessionContext.newKey("request_attempts");

    public static final SessionContext.Key REST_CLIENT_CONFIG =
            SessionContext.newKey("rest_client_config");

    public static final SessionContext.Key> ZUUL_ENDPOINT =
            SessionContext.newKey("_zuul_endpoint");
    public static final SessionContext.Key> ZUUL_ORIGIN_CHOSEN_HOST_ADDR_MAP_KEY =
            SessionContext.newKey("_zuul_origin_chosen_host_addr_map");
    public static final SessionContext.Key ORIGIN_CHANNEL = SessionContext.newKey("_origin_channel");
    public static final String ORIGIN_MANAGER = "origin_manager";
    public static final SessionContext.Key> ROUTING_LOG =
            SessionContext.newKey("routing_log");
    public static final String USE_FULL_VIP_NAME = "use_full_vip_name";
    public static final String ACTUAL_VIP = "origin_vip_actual";
    public static final String ORIGIN_VIP_SECURE = "origin_vip_secure";

    /**
     * The original client destination address Zuul by a proxy running Proxy Protocol.
     * Will only be set if both Zuul and the connected proxy are both using set to use Proxy Protocol.
     */
    public static final String PROXY_PROTOCOL_DESTINATION_ADDRESS = "proxy_protocol_destination_address";

    public static final String SSL_HANDSHAKE_INFO = "ssl_handshake_info";

    public static final String GZIPPER = "gzipper";
    public static final String OVERRIDE_GZIP_REQUESTED = "overrideGzipRequested";

    /* Netty-specific keys */
    public static final String NETTY_HTTP_REQUEST = "_netty_http_request";
    public static final String NETTY_SERVER_CHANNEL_HANDLER_CONTEXT = "_netty_server_channel_handler_context";
    public static final String REQ_BODY_DCS = "_request_body_dcs";
    public static final String RESP_BODY_DCS = "_response_body_dcs";

    public static final SessionContext.Key> REQ_BODY_SIZE_PROVIDER =
            SessionContext.newKey("request_body_size");
    public static final SessionContext.Key> RESP_BODY_SIZE_PROVIDER =
            SessionContext.newKey("response_body_size");

    public static final SessionContext.Key PASSPORT = SessionContext.newKey("_passport");
    public static final SessionContext.Key ZUUL_USE_DECODED_URI =
            SessionContext.newKey("zuul_use_decoded_uri");
}