/upload/src/aCloud/system/core/ACloudSysCoreCommon.php

<?php

! defined ( 'ACLOUD_PATH' ) && exit ( 'Forbidden' );

require_once Wind::getRealPath ( 'ACLOUD:system.core.ACloudSysCoreDefine' );

require_once Wind::getRealPath ( 'ACLOUD:system.core.ACloudSysCoreS' );

class ACloudSysCoreCommon {

	

	public static function getGlobal($key, $default = NULL) {

		return (isset ( $GLOBALS [$key] )) ? $GLOBALS [$key] : $default;

	}

	

	public static function setGlobal($key, $value) {

		$GLOBALS [$key] = $value;

	}

	

	public static function getSiteSign() {

		$sign = self::parseDomainName ( self::getSiteUnique () );

		return substr ( md5 ( $sign ), 8, 8 );

	}

	

	public static function getSiteUnique() {

		return isset ( $_SERVER ['SERVER_NAME'] ) ? trim ( $_SERVER ['SERVER_NAME'] ) : trim ( ACloudSysCoreDefine::ACLOUD_V );

	}

	

	public static function showError($message) {

		echo $message;

		exit ();

	}

	

	public static function randCode($length = 32) {

		$chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890';

		$chars_length = (strlen ( $chars ) - 1);

		$string = $chars {rand ( 0, $chars_length )};

		for($i = 1; $i < $length; $i = strlen ( $string )) {

			$r = $chars {rand ( 0, $chars_length )};

			if ($r != $string {$i - 1})

				$string .= $r;

		}

		return $string;

	}

	

	public static function getIp() {

		static $ip = null;

		if (! $ip) {

			if (isset ( $_SERVER ['HTTP_X_FORWARDED_FOR'] ) && $_SERVER ['HTTP_X_FORWARDED_FOR'] && $_SERVER ['REMOTE_ADDR']) {

				if (strstr ( $_SERVER ['HTTP_X_FORWARDED_FOR'], ',' )) {

					$x = explode ( ',', $_SERVER ['HTTP_X_FORWARDED_FOR'] );

					$_SERVER ['HTTP_X_FORWARDED_FOR'] = trim ( end ( $x ) );

				}

				if (preg_match ( '/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER ['HTTP_X_FORWARDED_FOR'] )) {

					$ip = $_SERVER ['HTTP_X_FORWARDED_FOR'];

				}

			} elseif (isset ( $_SERVER ['HTTP_CLIENT_IP'] ) && $_SERVER ['HTTP_CLIENT_IP'] && preg_match ( '/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER ['HTTP_CLIENT_IP'] )) {

				$ip = $_SERVER ['HTTP_CLIENT_IP'];

			}

			if (! $ip && preg_match ( '/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER ['REMOTE_ADDR'] )) {

				$ip = $_SERVER ['REMOTE_ADDR'];

			}

			! $ip && $ip = 'Unknown';

		}

		return $ip;

	}

	

	public static function getDirName($path = null) {

		if (! empty ( $path )) {

			if (strpos ( $path, '\\' ) !== false) {

				return substr ( $path, 0, strrpos ( $path, '\\' ) ) . '/';

			} elseif (strpos ( $path, '/' ) !== false) {

				return substr ( $path, 0, strrpos ( $path, '/' ) ) . '/';

			}

		}

		return './';

	}

	

	public static function parseDomainName($url) {

		return ($url) ? trim ( str_replace ( array ("http://", "https://" ), array ("" ), $url ), "/" ) : "";

	}

	

	public static function listDir($path) {

		static $result = array ();

		$path = rtrim ( $path, "/" ) . "/";

		$folder_handle = opendir ( $path );

		while ( false !== ($filename = readdir ( $folder_handle )) ) {

			if (strpos ( $filename, '.' ) !== 0) {

				if (is_dir ( $path . $filename . "/" )) {

					self::listDir ( $path . $filename . "/" );

				} else {

					$result [] = $path . $filename;

				}

			}

		}

		closedir ( $folder_handle );

		return $result;

	}

	

	public static function getSiteUserAgent() {

		list ( $key, $ua ) = array ('_ac_app_ua', '' );

		if (! $_COOKIE || ! isset ( $_COOKIE [$key] ) || ! $_COOKIE [$key]) {

			$ua = substr ( md5 ( $_SERVER ['HTTP_USER_AGENT'] . '\t' . rand ( 1000, 9999 ) . '\t' . time () ), 8, 18 );

			setcookie ( $key, $ua, time () + 86400 * 365 * 5 );

		}

		$ua = $ua ? $ua : $_COOKIE [$key];

		return (strlen ( $ua ) == 18) ? ACloudSysCoreS::escapeChar ( $ua ) : '';

	}

	

	public static function simpleResponse($code, $info = null) {

		$info = self::convert ( $info, 'UTF-8', self::getGlobal ( 'g_charset' ) );

		return self::jsonEncode ( array ('code' => $code, 'info' => $info ) );

	}

	

	public static function jsonEncode($data) {

		if (function_exists ( "json_encode" ))

			return json_encode ( $data );

		require_once Wind::getRealPath ( "ACLOUD:system.core.ACloudSysCoreJson" );

		$jsonClass = new Services_JSON ();

		return $jsonClass->encode ( $data );

	}

	

	public static function jsonDecode($data) {

		if (function_exists ( "json_decode" ))

			return json_decode ( $data );

		require_once Wind::getRealPath ( "ACLOUD:system.core.ACloudSysCoreJson" );

		$jsonClass = new Services_JSON ();

		return $jsonClass->decode ( $data );

	}

	

	public static function loadSystemClass($className, $module = 'core') {

		static $classes = array ();

		$className = str_replace ( " ", "", sprintf ( "ACloudSys%s", ucwords ( str_replace ( ".", " ", $module . " " . $className ) ) ) );

		if (isset ( $classes [$className] ))

			return $classes [$className];

		$class = Wind::import ( sprintf ( "ACLOUD:system.%s.%s", $module, $className ) );

		if (! class_exists ( $className ))

			self::showError ( 'cann`t find class' );

		$classes [$className] = new $className ();

		return $classes [$className];

	}

	

	public static function loadAppClass($appName) {

		static $classes = array ();

		$appName = strtolower ( $appName );

		$class = sprintf ( "ACloudApp%sGuiding", ucfirst ( $appName ) );

		if (isset ( $classes [$class] ))

			return $classes [$class];

		$class = Wind::import ( sprintf ( "ACLOUD:app.%s.%s", $appName, $class ) );

		if (! class_exists ( $class ))

			self::showError ( 'cann`t find class' );

		$classes [$class] = new $class ();

		return $classes [$class];

	}

	

	public static function loadApps($page) {

		require_once Wind::getRealPath ( 'ACLOUD:app.ACloudAppRouter' );

		$router = new ACloudAppRouter ();

		$apps = $router->getAppsByPage ( $page );

		foreach ( $apps as $appname ) {

			$appClass = self::loadAppClass ( $appname );

			$appClass->execute ();

		}

		return $apps;

	}

	

	public static function arrayCombination($array, $ik, $vk) {

		if (! is_array ( $array ))

			return array ();

		$tmp = array ();

		foreach ( $array as $a ) {

			(isset ( $a [$ik] ) && isset ( $a [$vk] )) && $tmp [$a [$ik]] = $a [$vk];

		}

		return $tmp;

	}

	

	public static function arrayIntersectAssoc($array1, $array2) {

		if (! is_array ( $array1 ) || ! is_array ( $array2 ))

			return array ();

		$tmp = array ();

		if (! function_exists ( "array_intersect_assoc" )) {

			$tmp = array_intersect_assoc ( $array1, $array2 );

		} else {

			foreach ( $array1 as $k => $v ) {

				if (! isset ( $array2 [$k] ) || $array2 [$k] != $v) {

					continue;

				}

				$tmp [$k] = $v;

			}

		}

		return $tmp;

	}

	

	public static function refresh($url) {

		echo '<meta http-equiv="expires" content="0">';

		echo '<meta http-equiv="Pragma" content="no-cache">';

		echo '<meta http-equiv="Cache-Control" content="no-cache">';

		echo "<meta http-equiv='refresh' content='0;url=$url'>";

		exit ();

	}

	

	public static function getMicrotime() {

		$t_array = explode ( ' ', microtime () );

		return $t_array [0] + $t_array [1];

	}

	

	public static function convertToUTF8($str) {

		$charset = self::getGlobal ( 'g_charset', 'gbk' );

		return self::convert ( $str, 'utf-8', $charset );

	}

	

	public static function convertFromUTF8($str) {

		$charset = self::getGlobal ( 'g_charset', 'gbk' );

		return self::convert ( $str, $charset, 'utf-8' );

	}

	

	public static function convert($str, $toEncoding, $fromEncoding, $ifMb = true) {

		if (strtolower ( $toEncoding ) == strtolower ( $fromEncoding ))

			return $str;

		is_object ( $str ) && $str = get_object_vars ( $str );

		if (is_array ( $str )) {

			foreach ( $str as $key => $value ) {

				is_object ( $value ) && $value = get_object_vars ( $value );

				$str [$key] = self::convert ( $value, $toEncoding, $fromEncoding, $ifMb );

			}

			return $str;

		} else {

			if (function_exists ( 'mb_convert_encoding' ) && $ifMb) {

				return mb_convert_encoding ( $str, $toEncoding, $fromEncoding );

			} else {

				static $sConvertor = null;

				! $toEncoding && $toEncoding = 'GBK';

				! $fromEncoding && $fromEncoding = 'GBK';

				if (! isset ( $sConvertor ) && ! is_object ( $sConvertor )) {

					require_once Wind::getRealPath ( "ACLOUD:system.core.ACloudSysCoreCharset" );

					$sConvertor = new ACloudSysCoreCharset ();

				}

				return $sConvertor->Convert ( $str, $fromEncoding, $toEncoding, ! $ifMb );

			}

		}

	}

	

	public static function buildSecutiryCode($string, $key, $action = 'ENCODE') {

		$action != 'ENCODE' && $string = base64_decode ( $string );

		$code = '';

		$key = substr ( md5 ( $key ), 8, 18 );

		$keyLen = strlen ( $key );

		$strLen = strlen ( $string );

		for($i = 0; $i < $strLen; $i ++) {

			$k = $i % $keyLen;

			$code .= $string [$i] ^ $key [$k];

		}

		return ($action != 'DECODE' ? base64_encode ( $code ) : $code);

	}

}