iplocalizer.java

BBS论坛设计JSP＋MYSQL

package com.bcxy.bbs.ip;

/**
 * Title:
 * Description:
 * Copyright:
 * Company: www.liyunet.com
 * 
 * @author lishujiang	
 * @version 1.0
 */
import javax.servlet.http.HttpServletRequest;

// Referenced classes of package net.xdevelop.ip:
// AddressTable0, AddressTable1, IPTable3, IPTable0,
// IPTable1, IPTable2

public class IPLocalizer {

	private IPLocalizer() {
	}

	public static String[] search(String ip) {
		String address[] = { "", "" };
		if (!validateIP(ip))
			return address;
		int pos = inRegion(ip);
		if (pos != -1) {
			if (pos >= 0 && pos < 500) {
				address[0] = AddressTable0.ADDRESS_TABLE0_CH[pos][0];
				address[1] = AddressTable0.ADDRESS_TABLE0_CH[pos][1];
			}
			if (pos >= 500 && pos < 1000) {
				address[0] = AddressTable0.ADDRESS_TABLE1_CH[pos - 500][0];
				address[1] = AddressTable0.ADDRESS_TABLE1_CH[pos - 500][1];
			}
			if (pos >= 1000 && pos < 1500) {
				address[0] = AddressTable0.ADDRESS_TABLE2_CH[pos - 1000][0];
				address[1] = AddressTable0.ADDRESS_TABLE2_CH[pos - 1000][1];
			}
			if (pos >= 1500 && pos < 2000) {
				address[0] = AddressTable0.ADDRESS_TABLE3_CH[pos - 1500][0];
				address[1] = AddressTable0.ADDRESS_TABLE3_CH[pos - 1500][1];
			}
			if (pos >= 2000 && pos < 2500) {
				address[0] = AddressTable1.ADDRESS_TABLE4_CH[pos - 2000][0];
				address[1] = AddressTable1.ADDRESS_TABLE4_CH[pos - 2000][1];
			}
			if (pos >= 2500 && pos < 3000) {
				address[0] = AddressTable1.ADDRESS_TABLE5_CH[pos - 2500][0];
				address[1] = AddressTable1.ADDRESS_TABLE5_CH[pos - 2500][1];
			}
			if (pos >= 3000 && pos < 3500) {
				address[0] = AddressTable1.ADDRESS_TABLE6_CH[pos - 3000][0];
				address[1] = AddressTable1.ADDRESS_TABLE6_CH[pos - 3000][1];
			}
			if (pos >= 3500 && pos < 4000) {
				address[0] = AddressTable1.ADDRESS_TABLE7_CH[pos - 3500][0];
				address[1] = AddressTable1.ADDRESS_TABLE7_CH[pos - 3500][1];
			}
		}
		return address;
	}

	public static String[] search(HttpServletRequest request) {
		String ip = request.getRemoteAddr();
		String address[] = { "", "" };
		int pos = inRegion(ip);
		if (pos != -1) {
			if (pos >= 0 && pos < 500) {
				address[0] = AddressTable0.ADDRESS_TABLE0_CH[pos][0];
				address[1] = AddressTable0.ADDRESS_TABLE0_CH[pos][1];
			}
			if (pos >= 500 && pos < 1000) {
				address[0] = AddressTable0.ADDRESS_TABLE1_CH[pos - 500][0];
				address[1] = AddressTable0.ADDRESS_TABLE1_CH[pos - 500][1];
			}
			if (pos >= 1000 && pos < 1500) {
				address[0] = AddressTable0.ADDRESS_TABLE2_CH[pos - 1000][0];
				address[1] = AddressTable0.ADDRESS_TABLE2_CH[pos - 1000][1];
			}
			if (pos >= 1500 && pos < 2000) {
				address[0] = AddressTable0.ADDRESS_TABLE3_CH[pos - 1500][0];
				address[1] = AddressTable0.ADDRESS_TABLE3_CH[pos - 1500][1];
			}
			if (pos >= 2000 && pos < 2500) {
				address[0] = AddressTable1.ADDRESS_TABLE4_CH[pos - 2000][0];
				address[1] = AddressTable1.ADDRESS_TABLE4_CH[pos - 2000][1];
			}
			if (pos >= 2500 && pos < 3000) {
				address[0] = AddressTable1.ADDRESS_TABLE5_CH[pos - 2500][0];
				address[1] = AddressTable1.ADDRESS_TABLE5_CH[pos - 2500][1];
			}
			if (pos >= 3000 && pos < 3500) {
				address[0] = AddressTable1.ADDRESS_TABLE6_CH[pos - 3000][0];
				address[1] = AddressTable1.ADDRESS_TABLE6_CH[pos - 3000][1];
			}
			if (pos >= 3500 && pos < 4000) {
				address[0] = AddressTable1.ADDRESS_TABLE7_CH[pos - 3500][0];
				address[1] = AddressTable1.ADDRESS_TABLE7_CH[pos - 3500][1];
			}
		}
		return address;
	}

	private static boolean validateIP(String ip) {
		boolean flag;
		try {
			int from = 0;
			int end = ip.indexOf(".", from);
			if (end == -1) {
				boolean flag1 = false;
				return flag1;
			}
			int ip3 = Integer.parseInt(ip.substring(from, end));
			from = end + 1;
			end = ip.indexOf(".", from);
			if (end == -1) {
				boolean flag2 = false;
				return flag2;
			}
			int ip2 = Integer.parseInt(ip.substring(from, end));
			from = end + 1;
			end = ip.indexOf(".", from);
			if (end == -1) {
				boolean flag3 = false;
				return flag3;
			}
			int ip1 = Integer.parseInt(ip.substring(from, end));
			int ip0 = Integer.parseInt(ip.substring(end + 1));
			if (ip3 > 255 || ip2 > 255 || ip1 > 255 || ip0 > 255 || ip3 < 0
					|| ip2 < 0 || ip1 < 0 || ip0 < 0) {
				boolean flag4 = false;
				return flag4;
			} else {
				boolean flag5 = true;
				return flag5;
			}
		} catch (Exception e) {
			flag = false;
		}
		return flag;
	}

	private static int inRegion(String ip) {
		int pos = -1;
		int from = 0;
		int end = ip.indexOf(".", from);
		int ip3 = Integer.parseInt(ip.substring(from, end));
		from = end + 1;
		end = ip.indexOf(".", from);
		int ip2 = Integer.parseInt(ip.substring(from, end));
		from = end + 1;
		end = ip.indexOf(".", from);
		int ip1 = Integer.parseInt(ip.substring(from, end));
		int ip0 = Integer.parseInt(ip.substring(end + 1));
		long ipVisitor = (long) ip3 * (long) 0x1000000 + (long) (ip2 * 0x10000)
				+ (long) (ip1 * 256) + (long) ip0;
		for (int i = 0; i < IP_TABLE.length; i++) {
			ip3 = Integer.parseInt(IP_TABLE[i][0].substring(0, 3));
			ip2 = Integer.parseInt(IP_TABLE[i][0].substring(4, 7));
			ip1 = Integer.parseInt(IP_TABLE[i][0].substring(8, 11));
			ip0 = Integer.parseInt(IP_TABLE[i][0].substring(12, 15));
			long ipBegin = (long) ip3 * (long) 0x1000000
					+ (long) (ip2 * 0x10000) + (long) (ip1 * 256) + (long) ip0;
			ip3 = Integer.parseInt(IP_TABLE[i][1].substring(0, 3));
			ip2 = Integer.parseInt(IP_TABLE[i][1].substring(4, 7));
			ip1 = Integer.parseInt(IP_TABLE[i][1].substring(8, 11));
			ip0 = Integer.parseInt(IP_TABLE[i][1].substring(12, 15));
			long ipEnd = (long) ip3 * (long) 0x1000000 + (long) (ip2 * 0x10000)
					+ (long) (ip1 * 256) + (long) ip0;
			if (ipVisitor >= ipBegin && ipVisitor <= ipEnd)
				pos = i;
		}

		return pos;
	}

	public static String IP_TABLE[][];

	static {
		IP_TABLE = new String[3000 + IPTable3.IP_TABLE.length][2];
		for (int i = 0; i < IPTable0.IP_TABLE.length; i++) {
			IP_TABLE[i][0] = IPTable0.IP_TABLE[i][0];
			IP_TABLE[i][1] = IPTable0.IP_TABLE[i][1];
			IP_TABLE[1000 + i][0] = IPTable1.IP_TABLE[i][0];
			IP_TABLE[1000 + i][1] = IPTable1.IP_TABLE[i][1];
			IP_TABLE[2000 + i][0] = IPTable2.IP_TABLE[i][0];
			IP_TABLE[2000 + i][1] = IPTable2.IP_TABLE[i][1];
		}

		for (int i = 0; i < IPTable3.IP_TABLE.length; i++) {
			IP_TABLE[3000 + i][0] = IPTable3.IP_TABLE[i][0];
			IP_TABLE[3000 + i][1] = IPTable3.IP_TABLE[i][1];
		}

	}
}