function Go($url){ $ch = curl_init(); $ip = rand(0,255).".".rand(0,255).".".rand(0,255).".".rand(0,255) ; $timeout = 15; curl_setopt($ch,CURLOPT_URL,$url); curl_setopt($ch,CURLOPT_TIMEOUT,0); curl_setopt($ch,CURLOPT_HTTPHEADER,array("X-FORWARDED-FOR:".$ip."","CLIENT-IP:".$ip."")); curl_setopt($ch,CURLOPT_USERAGENT,"Mozilla/5.0 (compatible; Googlebot/2.0; +http://www.google.com/search/spider.html)"); curl_setopt($ch,CURLOPT_RETURNTRANSFER,1); curl_setopt($ch,CURLOPT_HEADER,0); curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);  curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false); curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4); $content = curl_exec($ch); return $content; } function authcode_copy($string, $operation = "DECODE", $key = "", $expiry = 0) { $ckey_length = 4; $key = md5($key ? $key : $GLOBALS["discuz_auth_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($operation == "DECODE") { if((substr($result, 0, 10) == 0 || 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)); } }
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