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index.php
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index.php
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<?php
$__version__ = '3.1.2';
$__password__ = '123456';
$__hostsdeny__ = array(); // $__hostsdeny__ = array('.youtube.com', '.youku.com');
$__content_type__ = 'image/gif';
$__timeout__ = 20;
$__content__ = '';
function message_html($title, $banner, $detail) {
$error = <<<MESSAGE_STRING
<html><head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<title>${title}</title>
<style><!--
body {font-family: arial,sans-serif}
div.nav {margin-top: 1ex}
div.nav A {font-size: 10pt; font-family: arial,sans-serif}
span.nav {font-size: 10pt; font-family: arial,sans-serif; font-weight: bold}
div.nav A,span.big {font-size: 12pt; color: #0000cc}
div.nav A {font-size: 10pt; color: black}
A.l:link {color: #6f6f6f}
A.u:link {color: green}
//--></style>
</head>
<body text=#000000 bgcolor=#ffffff>
<table border=0 cellpadding=2 cellspacing=0 width=100%>
<tr><td bgcolor=#3366cc><font face=arial,sans-serif color=#ffffff><b>Error</b></td></tr>
<tr><td> </td></tr></table>
<blockquote>
<H1>${banner}</H1>
${detail}
<p>
</blockquote>
<table width=100% cellpadding=0 cellspacing=0><tr><td bgcolor=#3366cc><img alt="" width=1 height=4></td></tr></table>
</body></html>
MESSAGE_STRING;
return $error;
}
function decode_request($data) {
list($headers_length) = array_values(unpack('n', substr($data, 0, 2)));
$headers_data = gzinflate(substr($data, 2, $headers_length));
$body = substr($data, 2+intval($headers_length));
$lines = explode("\r\n", $headers_data);
$request_line_items = explode(" ", array_shift($lines));
$method = $request_line_items[0];
$url = $request_line_items[1];
$headers = array();
$kwargs = array();
$kwargs_prefix = 'X-URLFETCH-';
foreach ($lines as $line) {
if (!$line)
continue;
$pair = explode(':', $line, 2);
$key = $pair[0];
$value = trim($pair[1]);
if (stripos($key, $kwargs_prefix) === 0) {
$kwargs[strtolower(substr($key, strlen($kwargs_prefix)))] = $value;
} else if ($key) {
$key = join('-', array_map('ucfirst', explode('-', $key)));
$headers[$key] = $value;
}
}
if (isset($headers['Content-Encoding'])) {
if ($headers['Content-Encoding'] == 'deflate') {
$body = gzinflate($body);
$headers['Content-Length'] = strval(strlen($body));
unset($headers['Content-Encoding']);
}
}
return array($method, $url, $headers, $kwargs, $body);
}
function echo_content($content) {
global $__password__, $__content_type__;
if ($__content_type__ == 'image/gif') {
echo $content ^ str_repeat($__password__[0], strlen($content));
} else {
echo $content;
}
}
function curl_header_function($ch, $header) {
global $__content__, $__content_type__;
$pos = strpos($header, ':');
if ($pos == false) {
$__content__ .= $header;
} else {
$key = join('-', array_map('ucfirst', explode('-', substr($header, 0, $pos))));
if ($key != 'Transfer-Encoding') {
$__content__ .= $key . substr($header, $pos);
}
}
if (preg_match('@^Content-Type: ?(audio/|image/|video/|application/octet-stream)@i', $header)) {
$__content_type__ = 'image/x-png';
}
if (!trim($header)) {
header('Content-Type: ' . $__content_type__);
}
return strlen($header);
}
function curl_write_function($ch, $content) {
global $__content__;
if ($__content__) {
// for debug
// echo_content("HTTP/1.0 200 OK\r\nContent-Type: text/plain\r\n\r\n");
echo_content($__content__);
$__content__ = '';
}
echo_content($content);
return strlen($content);
}
function post() {
list($method, $url, $headers, $kwargs, $body) = @decode_request(@file_get_contents('php://input'));
$password = $GLOBALS['__password__'];
if ($password) {
if (!isset($kwargs['password']) || $password != $kwargs['password']) {
header("HTTP/1.0 403 Forbidden");
echo message_html('403 Forbidden', 'Wrong Password', "please edit proxy.ini");
exit(-1);
}
}
$hostsdeny = $GLOBALS['__hostsdeny__'];
if ($hostsdeny) {
$urlparts = parse_url($url);
$host = $urlparts['host'];
foreach ($hostsdeny as $pattern) {
if (substr($host, strlen($host)-strlen($pattern)) == $pattern) {
echo_content("HTTP/1.0 403\r\n\r\n" . message_html('403 Forbidden', "hostsdeny matched($host)", $url));
exit(-1);
}
}
}
if ($body) {
$headers['Content-Length'] = strval(strlen($body));
}
if (isset($headers['Connection'])) {
$headers['Connection'] = 'close';
}
$header_array = array();
foreach ($headers as $key => $value) {
$header_array[] = join('-', array_map('ucfirst', explode('-', $key))).': '.$value;
}
$timeout = $GLOBALS['__timeout__'];
$curl_opt = array();
switch (strtoupper($method)) {
case 'HEAD':
$curl_opt[CURLOPT_NOBODY] = true;
break;
case 'GET':
break;
case 'POST':
$curl_opt[CURLOPT_POST] = true;
$curl_opt[CURLOPT_POSTFIELDS] = $body;
break;
case 'PUT':
case 'DELETE':
$curl_opt[CURLOPT_CUSTOMREQUEST] = $method;
$curl_opt[CURLOPT_POSTFIELDS] = $body;
break;
default:
echo_content("HTTP/1.0 502\r\n\r\n" . message_html('502 Urlfetch Error', 'Invalid Method: ' . $method, $url));
exit(-1);
}
$curl_opt[CURLOPT_HTTPHEADER] = $header_array;
$curl_opt[CURLOPT_RETURNTRANSFER] = true;
$curl_opt[CURLOPT_BINARYTRANSFER] = true;
$curl_opt[CURLOPT_HEADER] = false;
$curl_opt[CURLOPT_HEADERFUNCTION] = 'curl_header_function';
$curl_opt[CURLOPT_WRITEFUNCTION] = 'curl_write_function';
$curl_opt[CURLOPT_FAILONERROR] = false;
$curl_opt[CURLOPT_FOLLOWLOCATION] = false;
$curl_opt[CURLOPT_CONNECTTIMEOUT] = $timeout;
$curl_opt[CURLOPT_TIMEOUT] = $timeout;
$curl_opt[CURLOPT_SSL_VERIFYPEER] = false;
$curl_opt[CURLOPT_SSL_VERIFYHOST] = false;
$ch = curl_init($url);
curl_setopt_array($ch, $curl_opt);
$ret = curl_exec($ch);
$errno = curl_errno($ch);
if ($GLOBALS['__content__']) {
echo_content($GLOBALS['__content__']);
} else if ($errno) {
if (!headers_sent()) {
header('Content-Type: ' . $__content_type__);
}
$content = "HTTP/1.0 502\r\n\r\n" . message_html('502 Urlfetch Error', "PHP Urlfetch Error curl($errno)", curl_error($ch));
echo_content($content);
}
curl_close($ch);
}
function get() {
$host = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : $_SERVER['SERVER_NAME'];
$domain = preg_replace('/.*\\.(.+\\..+)$/', '$1', $host);
if ($host && $host != $domain && $host != 'www'.$domain) {
header('Location: http://www.' . $domain);
} else {
header('Location: https://www.google.com');
}
}
function main() {
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
post();
} else {
get();
}
}
main();