423 lines
14 KiB
PHP
423 lines
14 KiB
PHP
<?php
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if (!DEFINED('EGP'))
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exit(header('Refresh: 0; URL=http://' . $_SERVER['SERVER_NAME'] . '/404'));
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define('SXGEO_FILE', 0);
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define('SXGEO_MEMORY', 1);
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define('SXGEO_BATCH', 2);
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class SxGeo
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{
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protected $fh;
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protected $ip1c;
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protected $info;
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protected $range;
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protected $db_begin;
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protected $b_idx_str;
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protected $m_idx_str;
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protected $b_idx_arr;
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protected $m_idx_arr;
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protected $m_idx_len;
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protected $db_items;
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protected $country_size;
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protected $db;
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protected $regions_db;
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protected $cities_db;
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public $id2iso = array(
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'', 'AP', 'EU', 'AD', 'AE', 'AF', 'AG', 'AI', 'AL', 'AM', 'CW', 'AO', 'AQ', 'AR', 'AS', 'AT', 'AU',
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'AW', 'AZ', 'BA', 'BB', 'BD', 'BE', 'BF', 'BG', 'BH', 'BI', 'BJ', 'BM', 'BN', 'BO', 'BR', 'BS',
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'BT', 'BV', 'BW', 'BY', 'BZ', 'CA', 'CC', 'CD', 'CF', 'CG', 'CH', 'CI', 'CK', 'CL', 'CM', 'CN',
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'CO', 'CR', 'CU', 'CV', 'CX', 'CY', 'CZ', 'DE', 'DJ', 'DK', 'DM', 'DO', 'DZ', 'EC', 'EE', 'EG',
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'EH', 'ER', 'ES', 'ET', 'FI', 'FJ', 'FK', 'FM', 'FO', 'FR', 'SX', 'GA', 'GB', 'GD', 'GE', 'GF',
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'GH', 'GI', 'GL', 'GM', 'GN', 'GP', 'GQ', 'GR', 'GS', 'GT', 'GU', 'GW', 'GY', 'HK', 'HM', 'HN',
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'HR', 'HT', 'HU', 'ID', 'IE', 'IL', 'IN', 'IO', 'IQ', 'IR', 'IS', 'IT', 'JM', 'JO', 'JP', 'KE',
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'KG', 'KH', 'KI', 'KM', 'KN', 'KP', 'KR', 'KW', 'KY', 'KZ', 'LA', 'LB', 'LC', 'LI', 'LK', 'LR',
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'LS', 'LT', 'LU', 'LV', 'LY', 'MA', 'MC', 'MD', 'MG', 'MH', 'MK', 'ML', 'MM', 'MN', 'MO', 'MP',
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'MQ', 'MR', 'MS', 'MT', 'MU', 'MV', 'MW', 'MX', 'MY', 'MZ', 'NA', 'NC', 'NE', 'NF', 'NG', 'NI',
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'NL', 'NO', 'NP', 'NR', 'NU', 'NZ', 'OM', 'PA', 'PE', 'PF', 'PG', 'PH', 'PK', 'PL', 'PM', 'PN',
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'PR', 'PS', 'PT', 'PW', 'PY', 'QA', 'RE', 'RO', 'RU', 'RW', 'SA', 'SB', 'SC', 'SD', 'SE', 'SG',
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'SH', 'SI', 'SJ', 'SK', 'SL', 'SM', 'SN', 'SO', 'SR', 'ST', 'SV', 'SY', 'SZ', 'TC', 'TD', 'TF',
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'TG', 'TH', 'TJ', 'TK', 'TM', 'TN', 'TO', 'TL', 'TR', 'TT', 'TV', 'TW', 'TZ', 'UA', 'UG', 'UM',
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'US', 'UY', 'UZ', 'VA', 'VC', 'VE', 'VG', 'VI', 'VN', 'VU', 'WF', 'WS', 'YE', 'YT', 'RS', 'ZA',
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'ZM', 'ME', 'ZW', 'A1', 'XK', 'O1', 'AX', 'GG', 'IM', 'JE', 'BL', 'MF', 'BQ', 'SS'
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);
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public $batch_mode = false;
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public $memory_mode = false;
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public function __construct($db_file = 'SxGeo.dat', $type = SXGEO_FILE)
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{
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$this->fh = fopen($db_file, 'rb');
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$header = fread($this->fh, 40);
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if (substr($header, 0, 3) != 'SxG')
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die("Can't open {$db_file}\n");
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$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($header, 3));
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if ($info['b_idx_len'] * $info['m_idx_len'] * $info['range'] * $info['db_items'] * $info['time'] * $info['id_len'] == 0)
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die("Wrong file format {$db_file}\n");
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$this->range = $info['range'];
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$this->b_idx_len = $info['b_idx_len'];
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$this->m_idx_len = $info['m_idx_len'];
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$this->db_items = $info['db_items'];
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$this->id_len = $info['id_len'];
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$this->block_len = 3 + $this->id_len;
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$this->max_region = $info['max_region'];
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$this->max_city = $info['max_city'];
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$this->max_country = $info['max_country'];
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$this->country_size = $info['country_size'];
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$this->batch_mode = $type & SXGEO_BATCH;
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$this->memory_mode = $type & SXGEO_MEMORY;
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$this->pack = $info['pack_size'] ? explode("\0", fread($this->fh, $info['pack_size'])) : '';
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$this->b_idx_str = fread($this->fh, $info['b_idx_len'] * 4);
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$this->m_idx_str = fread($this->fh, $info['m_idx_len'] * 4);
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$this->db_begin = ftell($this->fh);
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if ($this->batch_mode) {
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$this->b_idx_arr = array_values(unpack("N*", $this->b_idx_str));
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unset($this->b_idx_str);
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$this->m_idx_arr = str_split($this->m_idx_str, 4);
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unset($this->m_idx_str);
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}
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if ($this->memory_mode) {
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$this->db = fread($this->fh, $this->db_items * $this->block_len);
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$this->regions_db = $info['region_size'] > 0 ? fread($this->fh, $info['region_size']) : '';
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$this->cities_db = $info['city_size'] > 0 ? fread($this->fh, $info['city_size']) : '';
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}
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$this->info = $info;
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$this->info['regions_begin'] = $this->db_begin + $this->db_items * $this->block_len;
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$this->info['cities_begin'] = $this->info['regions_begin'] + $info['region_size'];
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}
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protected function search_idx($ipn, $min, $max)
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{
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if ($this->batch_mode) {
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while ($max - $min > 8) {
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$offset = ($min + $max) >> 1;
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if ($ipn > $this->m_idx_arr[$offset])
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$min = $offset;
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else
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$max = $offset;
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}
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while ($ipn > $this->m_idx_arr[$min] && $min++ < $max) {
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};
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} else {
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while ($max - $min > 8) {
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$offset = ($min + $max) >> 1;
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if ($ipn > substr($this->m_idx_str, $offset * 4, 4))
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$min = $offset;
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else
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$max = $offset;
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}
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while ($ipn > substr($this->m_idx_str, $min * 4, 4) && $min++ < $max) {
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};
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}
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return $min;
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}
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protected function search_db($str, $ipn, $min, $max)
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{
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if ($max - $min > 1) {
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$ipn = substr($ipn, 1);
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while ($max - $min > 8) {
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$offset = ($min + $max) >> 1;
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if ($ipn > substr($str, $offset * $this->block_len, 3))
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$min = $offset;
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else
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$max = $offset;
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}
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while ($ipn >= substr($str, $min * $this->block_len, 3) && ++$min < $max) {
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};
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} else
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$min++;
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return hexdec(bin2hex(substr($str, $min * $this->block_len - $this->id_len, $this->id_len)));
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}
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public function get_num($ip)
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{
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$ip1n = (int)$ip;
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if ($ip1n == 0 || $ip1n == 10 || $ip1n == 127 || $ip1n >= $this->b_idx_len || false === ($ipn = ip2long($ip)))
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return false;
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$ipn = pack('N', $ipn);
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$this->ip1c = chr($ip1n);
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if ($this->batch_mode)
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$blocks = array('min' => $this->b_idx_arr[$ip1n - 1], 'max' => $this->b_idx_arr[$ip1n]);
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else
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$blocks = unpack("Nmin/Nmax", substr($this->b_idx_str, ($ip1n - 1) * 4, 8));
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if ($blocks['max'] - $blocks['min'] > $this->range) {
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$part = $this->search_idx($ipn, floor($blocks['min'] / $this->range), floor($blocks['max'] / $this->range) - 1);
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$min = $part > 0 ? $part * $this->range : 0;
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$max = $part > $this->m_idx_len ? $this->db_items : ($part + 1) * $this->range;
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if ($min < $blocks['min'])
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$min = $blocks['min'];
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if ($max > $blocks['max'])
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$max = $blocks['max'];
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} else {
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$min = $blocks['min'];
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$max = $blocks['max'];
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}
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$len = $max - $min;
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if ($this->memory_mode)
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return $this->search_db($this->db, $ipn, $min, $max);
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else {
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fseek($this->fh, $this->db_begin + $min * $this->block_len);
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return $this->search_db(fread($this->fh, $len * $this->block_len), $ipn, 0, $len);
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}
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}
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protected function readData($seek, $max, $type)
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{
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$raw = '';
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if ($seek && $max) {
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if ($this->memory_mode)
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$raw = substr($type == 1 ? $this->regions_db : $this->cities_db, $seek, $max);
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else {
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fseek($this->fh, $this->info[$type == 1 ? 'regions_begin' : 'cities_begin'] + $seek);
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$raw = fread($this->fh, $max);
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}
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}
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return $this->unpack($this->pack[$type], $raw);
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}
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protected function parseCity($seek, $full = false)
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{
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if (!$this->pack)
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return false;
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$only_country = false;
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if ($seek < $this->country_size) {
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$country = $this->readData($seek, $this->max_country, 0);
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$city = $this->unpack($this->pack[2]);
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$city['lat'] = $country['lat'];
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$city['lon'] = $country['lon'];
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$only_country = true;
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} else {
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$city = $this->readData($seek, $this->max_city, 2);
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$country = array('id' => $city['country_id'], 'iso' => $this->id2iso[$city['country_id']]);
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unset($city['country_id']);
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}
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if ($full) {
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$region = $this->readData($city['region_seek'], $this->max_region, 1);
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if (!$only_country)
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$country = $this->readData($region['country_seek'], $this->max_country, 0);
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unset($city['region_seek']);
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unset($region['country_seek']);
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return array('city' => $city, 'region' => $region, 'country' => $country);
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} else {
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unset($city['region_seek']);
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return array('city' => $city, 'country' => array('id' => $country['id'], 'iso' => $country['iso']));
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}
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}
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protected function unpack($pack, $item = '')
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{
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$unpacked = array();
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$empty = empty($item);
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$pack = explode('/', $pack);
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$pos = 0;
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foreach ($pack as $p) {
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list($type, $name) = explode(':', $p);
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$type0 = $type[0];
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if ($empty) {
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$unpacked[$name] = $type0 == 'b' || $type0 == 'c' ? '' : 0;
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continue;
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}
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switch ($type0) {
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case 't':
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case 'T':
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$l = 1;
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break;
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case 's':
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case 'n':
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case 'S':
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$l = 2;
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break;
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case 'm':
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case 'M':
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$l = 3;
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break;
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case 'd':
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$l = 8;
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break;
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case 'c':
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$l = (int)substr($type, 1);
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break;
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case 'b':
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$l = strpos($item, "\0", $pos) - $pos;
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break;
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default:
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$l = 4;
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}
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$val = substr($item, $pos, $l);
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switch ($type0) {
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case 't':
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$v = unpack('c', $val);
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break;
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case 'T':
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$v = unpack('C', $val);
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break;
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case 's':
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$v = unpack('s', $val);
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break;
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case 'S':
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$v = unpack('S', $val);
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break;
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case 'm':
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$v = unpack('l', $val . (ord($val[2]) >> 7 ? "\xff" : "\0"));
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break;
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case 'M':
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$v = unpack('L', $val . "\0");
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break;
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case 'i':
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$v = unpack('l', $val);
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break;
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case 'I':
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$v = unpack('L', $val);
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break;
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case 'f':
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$v = unpack('f', $val);
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break;
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case 'd':
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$v = unpack('d', $val);
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break;
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case 'n':
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$v = current(unpack('s', $val)) / pow(10, $type[1]);
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break;
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case 'N':
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$v = current(unpack('l', $val)) / pow(10, $type[1]);
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break;
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case 'c':
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$v = rtrim($val, ' ');
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break;
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case 'b':
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$v = $val;
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$l++;
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break;
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}
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$pos += $l;
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$unpacked[$name] = is_array($v) ? current($v) : $v;
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}
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return $unpacked;
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}
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public function get($ip)
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{
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return $this->max_city ? $this->getCity($ip) : $this->getCountry($ip);
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}
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public function getCountry($ip)
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{
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if ($this->max_city) {
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$tmp = $this->parseCity($this->get_num($ip));
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return $tmp['country']['iso'];
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} else
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return $this->id2iso[$this->get_num($ip)];
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}
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public function getCountryId($ip)
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{
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if ($this->max_city) {
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$tmp = $this->parseCity($this->get_num($ip));
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return $tmp['country']['id'];
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} else
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return $this->get_num($ip);
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}
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public function getCity($ip)
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{
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$seek = $this->get_num($ip);
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return $seek ? $this->parseCity($seek) : false;
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}
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public function getCityFull($ip)
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{
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$seek = $this->get_num($ip);
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return $seek ? $this->parseCity($seek, 1) : false;
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}
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public function about()
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{
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$charset = array('utf-8', 'latin1', 'cp1251');
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$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');
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return array(
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'Created' => date('Y.m.d', $this->info['time']),
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'Timestamp' => $this->info['time'],
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'Charset' => $charset[$this->info['charset']],
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'Type' => $types[$this->info['type']],
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'Byte Index' => $this->b_idx_len,
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'Main Index' => $this->m_idx_len,
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'Blocks In Index Item' => $this->range,
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'IP Blocks' => $this->db_items,
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'Block Size' => $this->block_len,
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'City' => array(
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'Max Length' => $this->max_city,
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'Total Size' => $this->info['city_size'],
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),
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'Region' => array(
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'Max Length' => $this->max_region,
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'Total Size' => $this->info['region_size'],
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),
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'Country' => array(
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'Max Length' => $this->max_country,
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'Total Size' => $this->info['country_size'],
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),
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);
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}
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}
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?>
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