com.baifendian.swordfish.common.utils.http.HttpUtil.java Source code

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Here is the source code for com.baifendian.swordfish.common.utils.http.HttpUtil.java

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/*
 * Copyright (C) 2017 Baifendian Corporation
 *
 * 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.baifendian.swordfish.common.utils.http;

import java.io.IOException;
import java.net.InetAddress;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class HttpUtil {

    private static final Logger logger = LoggerFactory.getLogger(HttpUtil.class);

    private static String HOST_ADDRESS = "localhost";

    static {
        try {
            InetAddress IP = InetAddress.getLocalHost();
            HOST_ADDRESS = IP.getHostAddress();
        } catch (IOException e) {
        }
    }

    public static String getHostAddress() {
        return HOST_ADDRESS;
    }

    /**
     *  http  ip ?
     */
    public static String getClientIpAddress(HttpServletRequest request) {
        String ip = request.getHeader("X-Forwarded-For");

        if (StringUtils.isNotEmpty(ip) && !StringUtils.equalsIgnoreCase("unKnown", ip)) {
            // ????? ip  ip ? ip
            int index = ip.indexOf(",");
            if (index != -1) {
                return ip.substring(0, index);
            } else {
                return ip;
            }
        }

        ip = request.getHeader("X-Real-IP");
        if (StringUtils.isNotEmpty(ip) && !StringUtils.equalsIgnoreCase("unKnown", ip)) {
            return ip;
        }

        return request.getRemoteAddr();
    }

    /**
     * ? cookie ?
     */
    public static Cookie getCookieByName(HttpServletRequest request, String name) {
        Cookie[] cookies = request.getCookies();
        if (cookies != null) {
            for (Cookie cookie : cookies) {
                if (StringUtils.equalsIgnoreCase(name, cookie.getName())) {
                    return cookie;
                }
            }
        }

        return null;
    }

    /**
     *  md5
     */
    public static String getMd5(String raw) {
        if (raw == null) {
            raw = StringUtils.EMPTY;
        }

        return DigestUtils.md5Hex(raw);
    }

}