www.gusucode.com > Destoon B2B仿淘宝电子商务网站 UTF8 v6.0源码程序 > destoon/include/ip.class.php
<?php /* [Destoon B2B System] Copyright (c) 2008-2015 www.destoon.com This is NOT a freeware, use is subject to license.txt */ defined('IN_DESTOON') or exit('Access Denied'); class ip { var $ip; var $ipfile; function ip($ip) { $this->ip = $ip; } function area() { foreach(array('wry', 'tiny') as $d) { $ipfile = DT_ROOT.'/file/ipdata/'.$d.'.dat'; if(is_file($ipfile)) { $this->ipfile = $ipfile; return $this->$d(); } return iplookup($this->ip); } return 'Unknown'; } function wry() { if(!$fd = @fopen($this->ipfile, 'rb')) return 'Invalid IP data file'; $ip = explode('.', $this->ip); $ipNum = $ip[0] * 16777216 + $ip[1] * 65536 + $ip[2] * 256 + $ip[3]; if(!($DataBegin = fread($fd, 4)) || !($DataEnd = fread($fd, 4)) ) return; @$ipbegin = implode('', unpack('L', $DataBegin)); if($ipbegin < 0) $ipbegin += pow(2, 32); @$ipend = implode('', unpack('L', $DataEnd)); if($ipend < 0) $ipend += pow(2, 32); $ipAllNum = ($ipend - $ipbegin) / 7 + 1; $BeginNum = $ip2num = $ip1num = 0; $ipAddr1 = $ipAddr2 = ''; $EndNum = $ipAllNum; while($ip1num > $ipNum || $ip2num < $ipNum) { $Middle= intval(($EndNum + $BeginNum) / 2); fseek($fd, $ipbegin + 7 * $Middle); $ipData1 = fread($fd, 4); if(strlen($ipData1) < 4) { fclose($fd); return 'System Error'; } $ip1num = implode('', unpack('L', $ipData1)); if($ip1num < 0) $ip1num += pow(2, 32); if($ip1num > $ipNum) { $EndNum = $Middle; continue; } $DataSeek = fread($fd, 3); if(strlen($DataSeek) < 3) { fclose($fd); return 'System Error'; } $DataSeek = implode('', unpack('L', $DataSeek.chr(0))); fseek($fd, $DataSeek); $ipData2 = fread($fd, 4); if(strlen($ipData2) < 4) { fclose($fd); return 'System Error'; } $ip2num = implode('', unpack('L', $ipData2)); if($ip2num < 0) $ip2num += pow(2, 32); if($ip2num < $ipNum) { if($Middle == $BeginNum) { fclose($fd); return 'Unknown'; } $BeginNum = $Middle; } } $ipFlag = fread($fd, 1); if($ipFlag == chr(1)) { $ipSeek = fread($fd, 3); if(strlen($ipSeek) < 3) { fclose($fd); return 'System Error'; } $ipSeek = implode('', unpack('L', $ipSeek.chr(0))); fseek($fd, $ipSeek); $ipFlag = fread($fd, 1); } if($ipFlag == chr(2)) { $AddrSeek = fread($fd, 3); if(strlen($AddrSeek) < 3) { fclose($fd); return 'System Error'; } $ipFlag = fread($fd, 1); if($ipFlag == chr(2)) { $AddrSeek2 = fread($fd, 3); if(strlen($AddrSeek2) < 3) { fclose($fd); return 'System Error'; } $AddrSeek2 = implode('', unpack('L', $AddrSeek2.chr(0))); fseek($fd, $AddrSeek2); } else { fseek($fd, -1, SEEK_CUR); } while(($char = fread($fd, 1)) != chr(0)) $ipAddr2 .= $char; $AddrSeek = implode('', unpack('L', $AddrSeek.chr(0))); fseek($fd, $AddrSeek); while(($char = fread($fd, 1)) != chr(0)) $ipAddr1 .= $char; } else { fseek($fd, -1, SEEK_CUR); while(($char = fread($fd, 1)) != chr(0)) $ipAddr1 .= $char; $ipFlag = fread($fd, 1); if($ipFlag == chr(2)) { $AddrSeek2 = fread($fd, 3); if(strlen($AddrSeek2) < 3) { fclose($fd); return 'System Error'; } $AddrSeek2 = implode('', unpack('L', $AddrSeek2.chr(0))); fseek($fd, $AddrSeek2); } else { fseek($fd, -1, SEEK_CUR); } while(($char = fread($fd, 1)) != chr(0)) $ipAddr2 .= $char; } fclose($fd); if(preg_match('/http/i', $ipAddr2)) $ipAddr2 = ''; $ipaddr = "$ipAddr1 $ipAddr2"; $ipaddr = preg_replace('/CZ88\.NET/is', '', $ipaddr); $ipaddr = preg_replace('/^\s*/is', '', $ipaddr); $ipaddr = preg_replace('/\s*$/is', '', $ipaddr); if(preg_match('/http/i', $ipaddr) || $ipaddr == '') $ipaddr = 'Unknown'; return convert($ipaddr, 'GBK', DT_CHARSET); } function tiny() { static $fp = NULL, $offset = array(), $index = NULL; $ipdot = explode('.', $this->ip); $ip = pack('N', ip2long($this->ip)); $ipdot[0] = (int)$ipdot[0]; $ipdot[1] = (int)$ipdot[1]; if($fp === NULL && $fp = @fopen($this->ipfile, 'rb')) { $offset = unpack('Nlen', fread($fp, 4)); $index = fread($fp, $offset['len'] - 4); } else if($fp == false) { return 'Invalid IP data file'; } $length = $offset['len'] - 1028; $start = unpack('Vlen', $index[$ipdot[0] * 4].$index[$ipdot[0] * 4 + 1].$index[$ipdot[0] * 4 + 2].$index[$ipdot[0] * 4 + 3]); for($start = $start['len'] * 8 + 1024; $start < $length; $start += 8) { if ($index{$start} . $index{$start + 1} . $index{$start + 2} . $index{$start + 3} >= $ip) { $index_offset = unpack('Vlen', $index{$start + 4} . $index{$start + 5} . $index{$start + 6} . "\x0"); $index_length = unpack('Clen', $index{$start + 7}); break; } } fseek($fp, $offset['len'] + $index_offset['len'] - 1024); if($index_length['len']) return convert(fread($fp, $index_length['len']), 'GBK', DT_CHARSET); return 'Unknown'; } } ?>