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145 lines
4.0 KiB
PHP
145 lines
4.0 KiB
PHP
<?php
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require(__DIR__.'/login.php');
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define('PROXY_START', microtime(true));
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require("vendor/autoload.php");
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use Proxy\Http\Request;
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use Proxy\Http\Response;
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use Proxy\Plugin\AbstractPlugin;
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use Proxy\Event\FilterEvent;
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use Proxy\Config;
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use Proxy\Proxy;
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// start the session
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session_start();
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// load config...
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Config::load('./config.php');
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// custom config file to be written to by a bash script or something
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Config::load('./custom_config.php');
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if (!Config::get('app_key')) {
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die("app_key inside config.php cannot be empty!");
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}
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if (!function_exists('curl_version')) {
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die("cURL extension is not loaded!");
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}
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// how are our URLs be generated from this point? this must be set here so the proxify_url function below can make use of it
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if (Config::get('url_mode') == 2) {
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Config::set('encryption_key', md5(Config::get('app_key') . $_SERVER['REMOTE_ADDR']));
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} else if (Config::get('url_mode') == 3) {
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Config::set('encryption_key', md5(Config::get('app_key') . session_id()));
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}
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// very important!!! otherwise requests are queued while waiting for session file to be unlocked
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session_write_close();
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// form submit in progress...
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if (isset($_POST['url'])) {
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$url = $_POST['url'];
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if (strpos ($url, '.') !== false){
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$url = add_http($url);
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header("HTTP/1.1 302 Found");
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header('Location: '.proxify_url($url));
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exit;
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}
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else {
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$url = 'http://www.google.com/search?q=' . urlencode($url);
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$url = add_http($url);
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header("HTTP/1.1 302 Found");
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header('Location: '.proxify_url($url));
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exit;
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}
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} else if (!isset($_GET['q'])) {
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// must be at homepage - should we redirect somewhere else?
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if (Config::get('index_redirect')) {
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// redirect to...
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header("HTTP/1.1 302 Found");
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header("Location: " . Config::get('index_redirect'));
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} else {
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if (isset($_GET["tos"]) != "") {
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echo render_template("./templates/tos.php", array(
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'version' => Proxy::VERSION
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));
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} else {
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echo render_template("./templates/main.php", array('version' => Proxy::VERSION));
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}
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}
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exit;
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}
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// decode q parameter to get the real URL
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$url = url_decrypt($_GET['q']);
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$proxy = new Proxy();
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// load plugins
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foreach (Config::get('plugins', array()) as $plugin) {
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$plugin_class = $plugin . 'Plugin';
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if (file_exists('./plugins/' . $plugin_class . '.php')) {
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// use user plugin from /plugins/
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require_once('./plugins/' . $plugin_class . '.php');
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} else if (class_exists('\\Proxy\\Plugin\\' . $plugin_class)) {
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// does the native plugin from php-proxy package with such name exist?
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$plugin_class = '\\Proxy\\Plugin\\' . $plugin_class;
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}
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// otherwise plugin_class better be loaded already through composer.json and match namespace exactly \\Vendor\\Plugin\\SuperPlugin
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$proxy->getEventDispatcher()->addSubscriber(new $plugin_class());
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}
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try {
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// request sent to index.php
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$request = Request::createFromGlobals();
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// remove all GET parameters such as ?q=
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$request->get->clear();
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// forward it to some other URL
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$response = $proxy->forward($request, $url);
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// if that was a streaming response, then everything was already sent and script will be killed before it even reaches this line
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$response->send();
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} catch (Exception $ex) {
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// if the site is on server2.proxy.com then you may wish to redirect it back to proxy.com
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if (Config::get("error_redirect")) {
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$url = render_string(Config::get("error_redirect"), array(
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'error_msg' => rawurlencode($ex->getMessage())
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));
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// Cannot modify header information - headers already sent
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header("HTTP/1.1 302 Found");
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header("Location: {$url}");
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} else {
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echo render_template("./templates/main.php", array(
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'url' => $url,
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'error_msg' => $ex->getMessage(),
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'version' => Proxy::VERSION
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));
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}
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}
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?>
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