mirror of
https://github.com/GeoffreyFrogeye/phroxyp.git
synced 2024-10-12 14:06:03 +02:00
91 lines
3.3 KiB
PHP
Executable file
91 lines
3.3 KiB
PHP
Executable file
<?php
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class Proxy {
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public function __construct($serv, $port = 80, $root = '', $localRoot = '') {
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// Functions
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function str_replace_once($search, $replace, $subject) { // TODO Credit
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$pos = strpos($subject, $search);
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if ($pos === false) {
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return $subject;
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}
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return substr($subject, 0, $pos) . $replace . substr($subject, $pos + strlen($search));
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}
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if (!function_exists('getallheaders')) { // TODO Credit
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function getallheaders() {
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if (!is_array($_SERVER)) {
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return array();
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}
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$headers = array();
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foreach ($_SERVER as $name => $value) {
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if (substr($name, 0, 5) == 'HTTP_') {
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$headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
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} else if (substr($name, 0, 8) == 'CONTENT_') {
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$headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', $name))))] = $value;
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}
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}
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return $headers;
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}
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}
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// Target determination
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$metd = $_SERVER['REQUEST_METHOD'];
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$reqp = $_SERVER['REQUEST_URI'];
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if ($localRoot != '') {
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$reqp = str_replace_once($localRoot, '', $reqp); // TODO Reliable method
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}
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// Preparing request headers
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$reqHeds = "$metd $root$reqp HTTP/1.1\r\n";
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$reqHeds .= "Host: $serv:$port\r\n";
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// Converting client request headers to server request headers
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$reqsHedsC = getallheaders();
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foreach ($reqsHedsC as $name => $content) {
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switch ($name) {
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case 'Host':
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case 'Connection':
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break;
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default:
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$reqHeds .= "$name: $content\r\n";
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}
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}
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$reqHeds .= "Connection: Close\r\n\r\n".file_get_contents('php://input');
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$fp = fsockopen($serv, $port, $errno, $errstr, 30);
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if (!$fp) { // TODO ErrorCode, ErrorDocument
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echo "Couldn't connect to server.\n<br/>$errstr ($errno)<br />\n";
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} else {
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// Sending request
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fwrite($fp, $reqHeds);
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$resBuf = '';
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while ($get = fgets($fp, 128)) {
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// Getting response
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if ($resBuf === True) { // If headers sent
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echo $get;
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} else {
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$resBuf .= $get;
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if ($sepPos = strrpos($resBuf, "\r\n\r\n")) { // Headers have been retrieved
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$resHeds = explode("\r\n", substr($resBuf, 0, $sepPos));
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foreach ($resHeds as $resHed) { // Setting headers
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header($resHed);
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if (substr($resHed, 0, 4) == 'HTTP') { // FastCGI fix when using ErrorDocument
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header('Status: ' . substr($resHed, 9));
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}
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}
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echo substr($resBuf, $sepPos + 4); // Sending the rest (usually empty)
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$resBuf = True; // Setting mode to automatically redirect
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}
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}
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}
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fclose($fp);
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}
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}
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}
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?>
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