Create index.php

Author: aminrpg

index.php

@@ -0,0 +1,98 @@
+<?php 
+/**
+ * Script retranslates queries to telegram bot API
+ */
+class TelegramApiProxy {
+	private $url;
+	private $ch;
+	private $log = false;
+
+	public function __construct(){
+		$this->getUrl();
+		$this->initCurl();
+	}
+
+	public function setLog(bool $log){
+		$this->log = $log;
+	}
+
+	private function log(string $m){
+		if(!$this->log) return;
+		file_put_contents('proxy.log', $m . PHP_EOL, FILE_APPEND);
+	}
+
+	public function start(){
+		$this->log('[' . date('Y-m-d H:i:s') . '] Query init. URL: ' . $this->url);
+		$this->sendRequest();
+
+		$response = curl_exec($this->ch);
+		$debug = curl_getinfo($this->ch);
+		$this->log('Response headers: code=' . $debug['http_code'] . '; content_type=' . $debug['content_type'] . '; size_upload=' . $debug['size_upload'] . '; size_download=' . $debug['size_upload'] . ';');
+		$this->log('Response body: ' . $response);
+		$this->log(' ');
+
+		$this->sendResponse($response, $debug['content_type'], $debug['http_code']);
+	}
+
+	private function sendResponse(string $response, string $type, int $code){
+		header('Content-type: ' . $type, $code);
+		die($response);
+	}
+
+	public function getUrl(){
+		$dir = dirname($_SERVER['SCRIPT_NAME']); // detect path to dir
+		if(strpos($_SERVER['REQUEST_URI'], $dir) === 0){
+			$uri = substr($_SERVER['REQUEST_URI'], strlen($dir));
+		} else {
+			$uri = $_SERVER['REQUEST_URI'];
+		}
+
+		if(substr($uri, 0, 1) != '/'){
+			$uri = '/' . $uri;
+		}
+		
+		return $this->url = "https://api.telegram.org" . $uri;
+	}
+
+	private function initCurl(){
+		$this->ch = curl_init($this->url);
+		curl_setopt($this->ch, CURLOPT_RETURNTRANSFER, true);			
+		return $this->ch;
+	}
+
+	private function sendRequest(){
+		$method = $_SERVER['REQUEST_METHOD'] ?? 'GET';
+		$this->log('HTTP Request: ' . $method);
+
+		if($method == 'POST'){
+			curl_setopt($this->ch, CURLOPT_POST, true);
+		
+			if(sizeof($_FILES) > 0){
+				$post = [];
+				foreach ($_FILES as $name => $file) {
+					$post[$name] = new CURLFile($file['tmp_name'], $file['type'], $file['name']);	
+				}
+
+				foreach ($_POST as $name => $value) {
+					$post[$name] = $value;	
+				}
+
+			} else {
+				$post = file_get_contents('php://input');
+				$ct = $_SERVER['HTTP_CONTENT_TYPE'] ?? $_SERVER['CONTENT_TYPE'];
+				curl_setopt($this->ch, CURLOPT_HTTPHEADER, ['Content-type: ' . $ct]);
+			}
+
+			curl_setopt($this->ch, CURLOPT_POSTFIELDS, $post);
+			$this->log('Send data: ' . var_export($post, true));
+
+		} else {
+			curl_setopt($this->ch, CURLOPT_CUSTOMREQUEST, $method);
+		}
+	}
+}
+
+$proxy = new TelegramApiProxy;
+$proxy->setLog(true); // use logs only for debug
+$proxy->start();
+?>