//授权代码需要配合xx_get_curl函数类和authcode函数类，请添加xx_get_curl函数，如有authcode函数类可不替换，一般此类相同，如不同的请替换或改名。注：改名的请注意授权代码内函数同步改名



function xx_get_curl($url,$post=0,$referer=0,$cookie=0,$header=0,$ua=0,$nobaody=0,$addheader=0){
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL,$url);
	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
	curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
	$httpheader[] = "Accept: */*";
	$httpheader[] = "Accept-Encoding: gzip,deflate,sdch";
	$httpheader[] = "Accept-Language: zh-CN,zh;q=0.8";
	$httpheader[] = "Connection: close";
	if($addheader){
		$httpheader = array_merge($httpheader, $addheader);
	}
	curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 3);
        // 设置超时时间
        curl_setopt($ch, CURLOPT_TIMEOUT, 3);
	if($post){
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
	}
	curl_setopt($ch, CURLOPT_HTTPHEADER, $httpheader);
	if($header){
		curl_setopt($ch, CURLOPT_HEADER, TRUE);
	}
	if($cookie){
		curl_setopt($ch, CURLOPT_COOKIE, $cookie);
	}
	if($referer){
		if($referer==1){
			curl_setopt($ch, CURLOPT_REFERER, 'http://m.qzone.com/infocenter?g_f=');
		}else{
			curl_setopt($ch, CURLOPT_REFERER, $referer);
		}
	}
	if($ua){
		curl_setopt($ch, CURLOPT_USERAGENT,$ua);
	}else{
		curl_setopt($ch, CURLOPT_USERAGENT,'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36');
	}
	if($nobaody){
		curl_setopt($ch, CURLOPT_NOBODY,1);
	}
	curl_setopt($ch, CURLOPT_ENCODING, "gzip");
	curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
	$ret = curl_exec($ch);
	curl_close($ch);
	return $ret;
}

function authcode($string, $operation = 'DECODE', $key = '', $expiry = 0) {
	$ckey_length = 4;
	$key = md5($key);
	$keya = md5(substr($key, 0, 16));
	$keyb = md5(substr($key, 16, 16));
	$keyc = $ckey_length ? ($operation == 'DECODE' ? substr($string, 0, $ckey_length): substr(md5(microtime()), -$ckey_length)) : '';
	$cryptkey = $keya.md5($keya.$keyc);
	$key_length = strlen($cryptkey);
	$string = $operation == 'DECODE' ? base64_decode(substr($string, $ckey_length)) : sprintf('%010d', $expiry ? $expiry + time() : 0).substr(md5($string.$keyb), 0, 16).$string;
	$string_length = strlen($string);
	$result = '';
	$box = range(0, 255);
	$rndkey = array();
	for($i = 0; $i <= 255; $i++) {
		$rndkey[$i] = ord($cryptkey[$i % $key_length]);
	}
	for($j = $i = 0; $i < 256; $i++) {
		$j = ($j + $box[$i] + $rndkey[$i]) % 256;
		$tmp = $box[$i];
		$box[$i] = $box[$j];
		$box[$j] = $tmp;
	}
	for($a = $j = $i = 0; $i < $string_length; $i++) {
		$a = ($a + 1) % 256;
		$j = ($j + $box[$a]) % 256;
		$tmp = $box[$a];
		$box[$a] = $box[$j];
		$box[$j] = $tmp;
		$result .= chr(ord($string[$i]) ^ ($box[($box[$a] + $box[$j]) % 256]));
	}
	if($operation == 'DECODE') {
		if(((int)substr($result, 0, 10) == 0 || (int)substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26).$keyb), 0, 16)) {
			return substr($result, 26);
		} else {
			return '';
		}
	} else {
		return $keyc.str_replace('=', '', base64_encode($result));
	}
}



