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package com.lds.utils;
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import cn.hutool.log.StaticLog;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.stereotype.Component;
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import javax.annotation.PostConstruct;
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import javax.servlet.http.HttpServletRequest;
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import java.net.InetAddress;
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import java.net.NetworkInterface;
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import java.net.SocketException;
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import java.util.Collections;
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import java.util.Enumeration;
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/**
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 * <strong style='color:purple;'>Created with IntelliJ IDEA.<hr>
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 * <strong style='color:orange;'>Author: lds<hr>
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 * <strong style='color:yellow;'>Date: 2021/9/1 10:01<hr>
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 * <strong style='color:blue;'>Class: com.lds.util<hr>
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 * <strong style='color:indigo;'>Project: demo<hr>
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 * <strong style='color:red;'>Description: 获取当前IP及端口<hr>
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 */
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@Slf4j
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@Component
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public class IPUtils {
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    private static String serverPort;
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    @Value("${server.port}")
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    private String port;
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    @PostConstruct
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    public void setServerPort() {
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        serverPort = port;
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        StaticLog.info("port:" + serverPort);
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    }
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    /**
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     * 获取当前服务的ip和端口
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     *
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     * @param
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     * @author: lds
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     * @date: 2021/9/1 10:03
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     * @return: {@link String}
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     */
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    public static String getServerIpAndPort() {
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        InetAddress address = null;
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        try {
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            Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
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            for (NetworkInterface ni : Collections.list(interfaces)) {
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                if (ni.isUp() && !ni.isLoopback() && ni.getName().startsWith("eth")) {
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                    Enumeration<InetAddress> addresses = ni.getInetAddresses();
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                    for (InetAddress inetAddress : Collections.list(addresses)) {
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                        if (inetAddress.isSiteLocalAddress()) {
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                            log.info("Ethernet IP Address: {}", inetAddress.getHostAddress());
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                            address = inetAddress;
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                        }
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                    }
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                }
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            }
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        } catch (SocketException e) {
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            log.error("", e);
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        }
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        return address.getHostAddress() + ":" + IPUtils.serverPort;
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    }
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    /**
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     * 获取当前服务的ip和端口
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     *
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     * @param
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     * @author: lds
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     * @date: 2021/9/1 10:03
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     * @return: {@link String}
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     */
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    public static String getServerIpAndPort(InetAddress address) {
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        return address.getHostAddress() + ":" + IPUtils.serverPort;
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    }
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    public static String getRealIp(HttpServletRequest request) {
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        String ipAddress = request.getHeader("X-Real-IP");
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        if (ipAddress == null || ipAddress.isEmpty() || "unknown".equalsIgnoreCase(ipAddress)) {
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            ipAddress = request.getHeader("X-Forwarded-For");
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        }
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        if (ipAddress == null || ipAddress.isEmpty() || "unknown".equalsIgnoreCase(ipAddress)) {
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            ipAddress = request.getHeader("Proxy-Client-IP");
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        }
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        if (ipAddress == null || ipAddress.isEmpty() || "unknown".equalsIgnoreCase(ipAddress)) {
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            ipAddress = request.getHeader("WL-Proxy-Client-IP");
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        }
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        if (ipAddress == null || ipAddress.isEmpty() || "unknown".equalsIgnoreCase(ipAddress)) {
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            ipAddress = request.getHeader("HTTP_CLIENT_IP");
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        }
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        if (ipAddress == null || ipAddress.isEmpty() || "unknown".equalsIgnoreCase(ipAddress)) {
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            ipAddress = request.getHeader("HTTP_X_FORWARDED_FOR");
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        }
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        if (ipAddress == null || ipAddress.isEmpty() || "unknown".equalsIgnoreCase(ipAddress)) {
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            ipAddress = request.getRemoteAddr();
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        }
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        return ipAddress;
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    }
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}