<?php
/////////////////////////////////////////////////////////////////////////////
// 此文件是 ShopNC多用户商城 的一部分
//
// Copyright (c) 2007 - 2008 www.shopnc.net 
//
// 要查看完整的版权信息和许可信息，请查看源代码中附带的 COPYRIGHT 文件，
// 或者访问 http://www.shopnc.net/ 获得详细信息。
/////////////////////////////////////////////////////////////////////////////

/**
 * FILE_NAME : base.php   FILE_PATH : uc_client\model\base.php
 * ....uc_client
 *
 * @copyright Copyright (c) 2007 - 2008 www.shopnc.net 
 * @author ShopNC Develop Team 
 * @package 
 * @subpackage 
 * @version Tue Oct 07 18:12:20 CST 2008
 */

!defined('IN_UC') && exit('Access Denied');

if(!function_exists('getgpc')) {
	function getgpc($k, $var='G') {
		switch($var) {
			case 'G': $var = &$_GET; break;
			case 'P': $var = &$_POST; break;
			case 'C': $var = &$_COOKIE; break;
			case 'R': $var = &$_REQUEST; break;
		}
		return isset($var[$k]) ? $var[$k] : NULL;
	}
}

class ucbase {

	var $time;
	var $onlineip;
	var $db;
	var $key;
	var $settings = array();
	var $cache = array();
	var $app = array();
	var $user = array();

	function ucbase() {
		
		$this->init_var();
		$this->init_db();
		$this->init_note();
	}

	function init_var() {
		$this->time = time();
		$cip = getenv('HTTP_CLIENT_IP');
		$xip = getenv('HTTP_X_FORWARDED_FOR');
		$rip = getenv('REMOTE_ADDR');
		$srip = $_SERVER['REMOTE_ADDR'];
		if($cip && strcasecmp($cip, 'unknown')) {
			$this->onlineip = $cip;
		} elseif($xip && strcasecmp($xip, 'unknown')) {
			$this->onlineip = $xip;
		} elseif($rip && strcasecmp($rip, 'unknown')) {
			$this->onlineip = $rip;
		} elseif($srip && strcasecmp($srip, 'unknown')) {
			$this->onlineip = $srip;
		}
		preg_match("/[\d\.]{7,15}/", $this->onlineip, $match);
		$this->onlineip = $match[0] ? $match[0] : 'unknown';
	}

	function init_db() {
		require_once BasePath.'/uc_client/lib/db.class.php';
		$this->db = new db();
		$this->db->connect(UC_DBHOST, UC_DBUSER, UC_DBPW, UC_DBNAME, UC_DBCHARSET, UC_DBCONNECT, UC_DBTABLEPRE);
	}

	function load($model, $base = NULL) {
		$base = $base ? $base : $this;
		if(empty($_ENV[$model])) {
			require_once BasePath."/uc_client/model/$model.php";
			eval('$_ENV[$model] = new '.$model.'model($base);');
		}
		return $_ENV[$model];
	}

	function date($time, $type = 3) {
		if(!$this->settings) {
			$this->settings = $this->cache('settings');
		}
		$format[] = $type & 2 ? (!empty($this->settings['dateformat']) ? $this->settings['dateformat'] : 'Y-n-j') : '';
		$format[] = $type & 1 ? (!empty($this->settings['timeformat']) ? $this->settings['timeformat'] : 'H:i') : '';
		return gmdate(implode(' ', $format), $time + $this->settings['timeoffset']);
	}

	function page_get_start($page, $ppp, $totalnum) {
		$totalpage = ceil($totalnum / $ppp);
		$page =  max(1, min($totalpage,intval($page)));
		return ($page - 1) * $ppp;
	}

	function implode($arr) {
		return "'".implode("','", (array)$arr)."'";
	}

	function &cache($cachefile) {
		$_CACHE = array();
		$cachepath = BasePath.'uc_client/data/cache/'.$cachefile.'.php';
		if(!@include_once $cachepath) {
			$this->load('cache');
			$_ENV['cache']->updatedata('', $cachefile);
		}
		return $_CACHE;
	}

	function get_setting($k = array(), $decode = FALSE) {
		$return = array();
		$sqladd = $k ? "WHERE k IN (".$this->implode($k).")" : '';
		$settings = $this->db->fetch_all("SELECT * FROM ".UC_DBTABLEPRE."settings $sqladd");
		if(is_array($settings)) {
			foreach($settings as $arr) {
				$return[$arr['k']] = $decode ? unserialize($arr['v']) : $arr['v'];
			}
		}
		return $return;
	}

	function cutstr($string, $length, $dot = ' ...') {
		if(strlen($string) <= $length) {
			return $string;
		}

		$string = str_replace(array('&amp;', '&quot;', '&lt;', '&gt;'), array('&', '"', '<', '>'), $string);

		$strcut = '';
		if(strtolower(UC_CHARSET) == 'utf-8') {

			$n = $tn = $noc = 0;
			while($n < strlen($string)) {

				$t = ord($string[$n]);
				if($t == 9 || $t == 10 || (32 <= $t && $t <= 126)) {
					$tn = 1; $n++; $noc++;
				} elseif(194 <= $t && $t <= 223) {
					$tn = 2; $n += 2; $noc += 2;
				} elseif(224 <= $t && $t < 239) {
					$tn = 3; $n += 3; $noc += 2;
				} elseif(240 <= $t && $t <= 247) {
					$tn = 4; $n += 4; $noc += 2;
				} elseif(248 <= $t && $t <= 251) {
					$tn = 5; $n += 5; $noc += 2;
				} elseif($t == 252 || $t == 253) {
					$tn = 6; $n += 6; $noc += 2;
				} else {
					$n++;
				}

				if($noc >= $length) {
					break;
				}

			}
			if($noc > $length) {
				$n -= $tn;
			}

			$strcut = substr($string, 0, $n);

		} else {
			for($i = 0; $i < $length; $i++) {
				$strcut .= ord($string[$i]) > 127 ? $string[$i].$string[++$i] : $string[$i];
			}
		}

		$strcut = str_replace(array('&', '"', '<', '>'), array('&amp;', '&quot;', '&lt;', '&gt;'), $strcut);

		return $strcut.$dot;
	}

	function init_note() {
		if($this->note_exists()) {
			$this->load('note');
			$_ENV['note']->send();
		}
	}

	function note_exists() {
		$noteexists = $this->db->fetch_first("SELECT value FROM ".UC_DBTABLEPRE."vars WHERE name='noteexists'");
		if(empty($noteexists)) {
			return FALSE;
		} else {
			return TRUE;
		}
	}
}
?>