Файл: vkolhoze.com/geo/SxGeo.php
Строк: 349
<?php
/***************************************************************************
| Sypex Geo version 2.2.3 |
| (c)2006-2014 zapimir zapimir@zapimir.net http://sypex.net/ |
| (c)2006-2014 BINOVATOR info@sypex.net |
|---------------------------------------------------------------------------|
| created: 2006.10.17 18:33 modified: 2014.06.20 18:57 |
|---------------------------------------------------------------------------|
| Sypex Geo is released under the terms of the BSD license |
| http://sypex.net/bsd_license.txt |
***************************************************************************/
define ('SXGEO_FILE', 0);
define ('SXGEO_MEMORY', 1);
define ('SXGEO_BATCH', 2);
class SxGeo {
protected $fh;
protected $ip1c;
protected $info;
protected $range;
protected $db_begin;
protected $b_idx_str;
protected $m_idx_str;
protected $b_idx_arr;
protected $m_idx_arr;
protected $m_idx_len;
protected $db_items;
protected $country_size;
protected $db;
protected $regions_db;
protected $cities_db;
public $id2iso = array(
'', 'AP', 'EU', 'AD', 'AE', 'AF', 'AG', 'AI', 'AL', 'AM', 'CW', 'AO', 'AQ', 'AR', 'AS', 'AT', 'AU',
'AW', 'AZ', 'BA', 'BB', 'BD', 'BE', 'BF', 'BG', 'BH', 'BI', 'BJ', 'BM', 'BN', 'BO', 'BR', 'BS',
'BT', 'BV', 'BW', 'BY', 'BZ', 'CA', 'CC', 'CD', 'CF', 'CG', 'CH', 'CI', 'CK', 'CL', 'CM', 'CN',
'CO', 'CR', 'CU', 'CV', 'CX', 'CY', 'CZ', 'DE', 'DJ', 'DK', 'DM', 'DO', 'DZ', 'EC', 'EE', 'EG',
'EH', 'ER', 'ES', 'ET', 'FI', 'FJ', 'FK', 'FM', 'FO', 'FR', 'SX', 'GA', 'GB', 'GD', 'GE', 'GF',
'GH', 'GI', 'GL', 'GM', 'GN', 'GP', 'GQ', 'GR', 'GS', 'GT', 'GU', 'GW', 'GY', 'HK', 'HM', 'HN',
'HR', 'HT', 'HU', 'ID', 'IE', 'IL', 'IN', 'IO', 'IQ', 'IR', 'IS', 'IT', 'JM', 'JO', 'JP', 'KE',
'KG', 'KH', 'KI', 'KM', 'KN', 'KP', 'KR', 'KW', 'KY', 'KZ', 'LA', 'LB', 'LC', 'LI', 'LK', 'LR',
'LS', 'LT', 'LU', 'LV', 'LY', 'MA', 'MC', 'MD', 'MG', 'MH', 'MK', 'ML', 'MM', 'MN', 'MO', 'MP',
'MQ', 'MR', 'MS', 'MT', 'MU', 'MV', 'MW', 'MX', 'MY', 'MZ', 'NA', 'NC', 'NE', 'NF', 'NG', 'NI',
'NL', 'NO', 'NP', 'NR', 'NU', 'NZ', 'OM', 'PA', 'PE', 'PF', 'PG', 'PH', 'PK', 'PL', 'PM', 'PN',
'PR', 'PS', 'PT', 'PW', 'PY', 'QA', 'RE', 'RO', 'RU', 'RW', 'SA', 'SB', 'SC', 'SD', 'SE', 'SG',
'SH', 'SI', 'SJ', 'SK', 'SL', 'SM', 'SN', 'SO', 'SR', 'ST', 'SV', 'SY', 'SZ', 'TC', 'TD', 'TF',
'TG', 'TH', 'TJ', 'TK', 'TM', 'TN', 'TO', 'TL', 'TR', 'TT', 'TV', 'TW', 'TZ', 'UA', 'UG', 'UM',
'US', 'UY', 'UZ', 'VA', 'VC', 'VE', 'VG', 'VI', 'VN', 'VU', 'WF', 'WS', 'YE', 'YT', 'RS', 'ZA',
'ZM', 'ME', 'ZW', 'A1', 'XK', 'O1', 'AX', 'GG', 'IM', 'JE', 'BL', 'MF', 'BQ', 'SS'
);
public $batch_mode = false;
public $memory_mode = false;
public function __construct($db_file = 'SxGeo.dat', $type = SXGEO_FILE){
$this->fh = fopen($db_file, 'rb');
// Сначала убеждаемся, что есть файл базы данных
$header = fread($this->fh, 40); // В версии 2.2 заголовок увеличился на 8 байт
if(substr($header, 0, 3) != 'SxG') die("Can't open {$db_file}n");
$info = unpack('Cver/Ntime/Ctype/Ccharset/Cb_idx_len/nm_idx_len/nrange/Ndb_items/Cid_len/nmax_region/nmax_city/Nregion_size/Ncity_size/nmax_country/Ncountry_size/npack_size', substr($header, 3));
if($info['b_idx_len'] * $info['m_idx_len'] * $info['range'] * $info['db_items'] * $info['time'] * $info['id_len'] == 0) die("Wrong file format {$db_file}n");
$this->range = $info['range'];
$this->b_idx_len = $info['b_idx_len'];
$this->m_idx_len = $info['m_idx_len'];
$this->db_items = $info['db_items'];
$this->id_len = $info['id_len'];
$this->block_len = 3 + $this->id_len;
$this->max_region = $info['max_region'];
$this->max_city = $info['max_city'];
$this->max_country = $info['max_country'];
$this->country_size= $info['country_size'];
$this->batch_mode = $type & SXGEO_BATCH;
$this->memory_mode = $type & SXGEO_MEMORY;
$this->pack = $info['pack_size'] ? explode(" ", fread($this->fh, $info['pack_size'])) : '';
$this->b_idx_str = fread($this->fh, $info['b_idx_len'] * 4);
$this->m_idx_str = fread($this->fh, $info['m_idx_len'] * 4);
$this->db_begin = ftell($this->fh);
if ($this->batch_mode) {
$this->b_idx_arr = array_values(unpack("N*", $this->b_idx_str)); // Быстрее в 5 раз, чем с циклом
unset ($this->b_idx_str);
$this->m_idx_arr = str_split($this->m_idx_str, 4); // Быстрее в 5 раз чем с циклом
unset ($this->m_idx_str);
}
if ($this->memory_mode) {
$this->db = fread($this->fh, $this->db_items * $this->block_len);
$this->regions_db = $info['region_size'] > 0 ? fread($this->fh, $info['region_size']) : '';
$this->cities_db = $info['city_size'] > 0 ? fread($this->fh, $info['city_size']) : '';
}
$this->info = $info;
$this->info['regions_begin'] = $this->db_begin + $this->db_items * $this->block_len;
$this->info['cities_begin'] = $this->info['regions_begin'] + $info['region_size'];
}
protected function search_idx($ipn, $min, $max){
if($this->batch_mode){
while($max - $min > 8){
$offset = ($min + $max) >> 1;
if ($ipn > $this->m_idx_arr[$offset]) $min = $offset;
else $max = $offset;
}
while ($ipn > $this->m_idx_arr[$min] && $min++ < $max){};
}
else {
while($max - $min > 8){
$offset = ($min + $max) >> 1;
if ($ipn > substr($this->m_idx_str, $offset*4, 4)) $min = $offset;
else $max = $offset;
}
while ($ipn > substr($this->m_idx_str, $min*4, 4) && $min++ < $max){};
}
return $min;
}
protected function search_db($str, $ipn, $min, $max){
if($max - $min > 1) {
$ipn = substr($ipn, 1);
while($max - $min > 8){
$offset = ($min + $max) >> 1;
if ($ipn > substr($str, $offset * $this->block_len, 3)) $min = $offset;
else $max = $offset;
}
while ($ipn >= substr($str, $min * $this->block_len, 3) && ++$min < $max){};
}
else {
$min++;
}
return hexdec(bin2hex(substr($str, $min * $this->block_len - $this->id_len, $this->id_len)));
}
public function get_num($ip){
$ip1n = (int)$ip; // Первый байт
if($ip1n == 0 || $ip1n == 10 || $ip1n == 127 || $ip1n >= $this->b_idx_len || false === ($ipn = ip2long($ip))) return false;
$ipn = pack('N', $ipn);
$this->ip1c = chr($ip1n);
// Находим блок данных в индексе первых байт
if ($this->batch_mode){
$blocks = array('min' => $this->b_idx_arr[$ip1n-1], 'max' => $this->b_idx_arr[$ip1n]);
}
else {
$blocks = unpack("Nmin/Nmax", substr($this->b_idx_str, ($ip1n - 1) * 4, 8));
}
if ($blocks['max'] - $blocks['min'] > $this->range){
// Ищем блок в основном индексе
$part = $this->search_idx($ipn, floor($blocks['min'] / $this->range), floor($blocks['max'] / $this->range)-1);
// Нашли номер блока в котором нужно искать IP, теперь находим нужный блок в БД
$min = $part > 0 ? $part * $this->range : 0;
$max = $part > $this->m_idx_len ? $this->db_items : ($part+1) * $this->range;
// Нужно проверить чтобы блок не выходил за пределы блока первого байта
if($min < $blocks['min']) $min = $blocks['min'];
if($max > $blocks['max']) $max = $blocks['max'];
}
else {
$min = $blocks['min'];
$max = $blocks['max'];
}
$len = $max - $min;
// Находим нужный диапазон в БД
if ($this->memory_mode) {
return $this->search_db($this->db, $ipn, $min, $max);
}
else {
fseek($this->fh, $this->db_begin + $min * $this->block_len);
return $this->search_db(fread($this->fh, $len * $this->block_len), $ipn, 0, $len);
}
}
protected function readData($seek, $max, $type){
$raw = '';
if($seek && $max) {
if ($this->memory_mode) {
$raw = substr($type == 1 ? $this->regions_db : $this->cities_db, $seek, $max);
} else {
fseek($this->fh, $this->info[$type == 1 ? 'regions_begin' : 'cities_begin'] + $seek);
$raw = fread($this->fh, $max);
}
}
return $this->unpack($this->pack[$type], $raw);
}
protected function parseCity($seek, $full = false){
if(!$this->pack) return false;
$only_country = false;
if($seek < $this->country_size){
$country = $this->readData($seek, $this->max_country, 0);
$city = $this->unpack($this->pack[2]);
$city['lat'] = $country['lat'];
$city['lon'] = $country['lon'];
$only_country = true;
}
else {
$city = $this->readData($seek, $this->max_city, 2);
$country = array('id' => $city['country_id'], 'iso' => $this->id2iso[$city['country_id']]);
unset($city['country_id']);
}
if($full) {
$region = $this->readData($city['region_seek'], $this->max_region, 1);
if(!$only_country) $country = $this->readData($region['country_seek'], $this->max_country, 0);
unset($city['region_seek']);
unset($region['country_seek']);
return array('city' => $city, 'region' => $region, 'country' => $country);
}
else {
unset($city['region_seek']);
return array('city' => $city, 'country' => array('id' => $country['id'], 'iso' => $country['iso']));
}
}
protected function unpack($pack, $item = ''){
$unpacked = array();
$empty = empty($item);
$pack = explode('/', $pack);
$pos = 0;
foreach($pack AS $p){
list($type, $name) = explode(':', $p);
$type0 = $type{0};
if($empty) {
$unpacked[$name] = $type0 == 'b' || $type0 == 'c' ? '' : 0;
continue;
}
switch($type0){
case 't':
case 'T': $l = 1; break;
case 's':
case 'n':
case 'S': $l = 2; break;
case 'm':
case 'M': $l = 3; break;
case 'd': $l = 8; break;
case 'c': $l = (int)substr($type, 1); break;
case 'b': $l = strpos($item, " ", $pos)-$pos; break;
default: $l = 4;
}
$val = substr($item, $pos, $l);
switch($type0){
case 't': $v = unpack('c', $val); break;
case 'T': $v = unpack('C', $val); break;
case 's': $v = unpack('s', $val); break;
case 'S': $v = unpack('S', $val); break;
case 'm': $v = unpack('l', $val . (ord($val{2}) >> 7 ? "xff" : " ")); break;
case 'M': $v = unpack('L', $val . " "); break;
case 'i': $v = unpack('l', $val); break;
case 'I': $v = unpack('L', $val); break;
case 'f': $v = unpack('f', $val); break;
case 'd': $v = unpack('d', $val); break;
case 'n': $v = current(unpack('s', $val)) / pow(10, $type{1}); break;
case 'N': $v = current(unpack('l', $val)) / pow(10, $type{1}); break;
case 'c': $v = rtrim($val, ' '); break;
case 'b': $v = $val; $l++; break;
}
$pos += $l;
$unpacked[$name] = is_array($v) ? current($v) : $v;
}
return $unpacked;
}
public function get($ip){
return $this->max_city ? $this->getCity($ip) : $this->getCountry($ip);
}
public function getCountry($ip){
if($this->max_city) {
$tmp = $this->parseCity($this->get_num($ip));
return $tmp['country']['iso'];
}
else return $this->id2iso[$this->get_num($ip)];
}
public function getCountryId($ip){
if($this->max_city) {
$tmp = $this->parseCity($this->get_num($ip));
return $tmp['country']['id'];
}
else return $this->get_num($ip);
}
public function getCity($ip){
$seek = $this->get_num($ip);
return $seek ? $this->parseCity($seek) : false;
}
public function getCityFull($ip){
$seek = $this->get_num($ip);
return $seek ? $this->parseCity($seek, 1) : false;
}
public function about(){
$charset = array('utf-8', 'latin1', 'cp1251');
$types = array('n/a', 'SxGeo Country', 'SxGeo City RU', 'SxGeo City EN', 'SxGeo City', 'SxGeo City Max RU', 'SxGeo City Max EN', 'SxGeo City Max');
return array(
'Created' => date('Y.m.d', $this->info['time']),
'Timestamp' => $this->info['time'],
'Charset' => $charset[$this->info['charset']],
'Type' => $types[$this->info['type']],
'Byte Index' => $this->b_idx_len,
'Main Index' => $this->m_idx_len,
'Blocks In Index Item' => $this->range,
'IP Blocks' => $this->db_items,
'Block Size' => $this->block_len,
'City' => array(
'Max Length' => $this->max_city,
'Total Size' => $this->info['city_size'],
),
'Region' => array(
'Max Length' => $this->max_region,
'Total Size' => $this->info['region_size'],
),
'Country' => array(
'Max Length' => $this->max_country,
'Total Size' => $this->info['country_size'],
),
);
}
}