132 lines
3.9 KiB
PHP
132 lines
3.9 KiB
PHP
<?php
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/** 获取评论者地址 */
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function convertips($ip){
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$ip1num = 0;
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$ip2num = 0;
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$ipAddr1 ="";
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$ipAddr2 ="";
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$dat_path = dirname(__FILE__).'/dist/qqwry.dat';
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if(!preg_match("/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/", $ip)) {
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return 'IPV6无法获取归宿地';
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}
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if(!$fd = @fopen($dat_path, 'rb')){
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return 'IP 数据库路径不正确';
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}
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$ip = explode('.', $ip);
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$ipNum = $ip[0] * 16777216 + $ip[1] * 65536 + $ip[2] * 256 + $ip[3];
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$DataBegin = fread($fd, 4);
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$DataEnd = fread($fd, 4);
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$ipbegin = implode('', unpack('L', $DataBegin));
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if($ipbegin < 0) $ipbegin += pow(2, 32);
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$ipend = implode('', unpack('L', $DataEnd));
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if($ipend < 0) $ipend += pow(2, 32);
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$ipAllNum = ($ipend - $ipbegin) / 7 + 1;
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$BeginNum = 0;
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$EndNum = $ipAllNum;
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while($ip1num>$ipNum || $ip2num<$ipNum) {
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$Middle= intval(($EndNum + $BeginNum) / 2);
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fseek($fd, $ipbegin + 7 * $Middle);
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$ipData1 = fread($fd, 4);
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if(strlen($ipData1) < 4) {
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fclose($fd);
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return 'System Error';
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}
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$ip1num = implode('', unpack('L', $ipData1));
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if($ip1num < 0) $ip1num += pow(2, 32);
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if($ip1num > $ipNum) {
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$EndNum = $Middle;
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continue;
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}
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$DataSeek = fread($fd, 3);
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if(strlen($DataSeek) < 3) {
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fclose($fd);
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return 'System Error';
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}
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$DataSeek = implode('', unpack('L', $DataSeek.chr(0)));
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fseek($fd, $DataSeek);
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$ipData2 = fread($fd, 4);
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if(strlen($ipData2) < 4) {
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fclose($fd);
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return 'System Error';
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}
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$ip2num = implode('', unpack('L', $ipData2));
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if($ip2num < 0) $ip2num += pow(2, 32);
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if($ip2num < $ipNum) {
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if($Middle == $BeginNum) {
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fclose($fd);
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return 'Unknown';
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}
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$BeginNum = $Middle;
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}
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}
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$ipFlag = fread($fd, 1);
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if($ipFlag == chr(1)) {
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$ipSeek = fread($fd, 3);
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if(strlen($ipSeek) < 3) {
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fclose($fd);
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return 'System Error';
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}
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$ipSeek = implode('', unpack('L', $ipSeek.chr(0)));
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fseek($fd, $ipSeek);
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$ipFlag = fread($fd, 1);
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}
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if($ipFlag == chr(2)) {
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$AddrSeek = fread($fd, 3);
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if(strlen($AddrSeek) < 3) {
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fclose($fd);
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return 'System Error';
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}
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$ipFlag = fread($fd, 1);
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if($ipFlag == chr(2)) {
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$AddrSeek2 = fread($fd, 3);
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if(strlen($AddrSeek2) < 3) {
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fclose($fd);
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return 'System Error';
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}
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$AddrSeek2 = implode('', unpack('L', $AddrSeek2.chr(0)));
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fseek($fd, $AddrSeek2);
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} else {
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fseek($fd, -1, SEEK_CUR);
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}
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while(($char = fread($fd, 1)) != chr(0))
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$ipAddr2 .= $char;
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$AddrSeek = implode('', unpack('L', $AddrSeek.chr(0)));
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fseek($fd, $AddrSeek);
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while(($char = fread($fd, 1)) != chr(0))
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$ipAddr1 .= $char;
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} else {
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fseek($fd, -1, SEEK_CUR);
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while(($char = fread($fd, 1)) != chr(0))
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$ipAddr1 .= $char;
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$ipFlag = fread($fd, 1);
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if($ipFlag == chr(2)) {
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$AddrSeek2 = fread($fd, 3);
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if(strlen($AddrSeek2) < 3) {
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fclose($fd);
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return 'System Error';
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}
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$AddrSeek2 = implode('', unpack('L', $AddrSeek2.chr(0)));
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fseek($fd, $AddrSeek2);
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} else {
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fseek($fd, -1, SEEK_CUR);
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}
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while(($char = fread($fd, 1)) != chr(0)){
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$ipAddr2 .= $char;
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}
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}
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fclose($fd);
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if(preg_match('/http/i', $ipAddr2)) {
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$ipAddr2 = '';
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}
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$ipaddr = "$ipAddr1 $ipAddr2";
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$ipaddr = preg_replace('/CZ88.NET/is', '', $ipaddr);
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$ipaddr = preg_replace('/^s*/is', '', $ipaddr);
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$ipaddr = preg_replace('/s*$/is', '', $ipaddr);
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if(preg_match('/http/i', $ipaddr) || $ipaddr == '') {
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$ipaddr = '可能来自火星';
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}
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$ipaddr = iconv('gbk', 'utf-8//IGNORE', $ipaddr);
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return $ipaddr;
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}
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?>
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