From c31c28b886316c4b9ae38c3ea80797db7e025425 Mon Sep 17 00:00:00 2001
From: pk910 <philipp@zoelle1.de>
Date: Tue, 19 Feb 2013 10:42:02 +0100
Subject: [PATCH] HTTPConnector.class.php

---
 PHP/HTTPConnector.class.php | 187 ++++++++++++++++++++++++++++++++++++
 1 file changed, 187 insertions(+)
 create mode 100644 PHP/HTTPConnector.class.php

diff --git a/PHP/HTTPConnector.class.php b/PHP/HTTPConnector.class.php
new file mode 100644
index 0000000..596da82
--- /dev/null
+++ b/PHP/HTTPConnector.class.php
@@ -0,0 +1,187 @@
+<?php
+/* HTTPConnector.class.php - HTTP Connector Class
+ * Copyright (C) 2011-2013  Philipp Kreil (pk910)
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License 
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. 
+ */
+
+class HTTPConnector {
+	private $cookies = array();
+	public $debug = false;
+	
+	private $default_header = array(
+			"Accept-Encoding" => "deflate",
+			"Accept-Language" => "de-DE",
+			"User-Agent" => "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0",
+			"Connection" => "Keep-Alive",
+			"Cache-Control" => "no-cache",
+		);
+	
+	private function fputs($fp, $line) {
+		if($this->debug)
+			echo $line;
+		fputs($fp, $line);
+	}
+	
+	private function create_request($host) {
+		if(!preg_match('#^((http|https)://|)(([a-zA-Z0-9][a-zA-Z0-9_-]+[a-zA-Z0-9]\.)+[a-zA-Z]{2,5}|[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})(:([0-9]{1,5})|)(/.*|)$#', $host, $matches))
+			return null;
+		if(empty($matches[3]))
+			return null;
+		$request = array();
+		$request['host'] = $matches[3];
+		$request['ssl'] = (strtolower($matches[2]) == "https");
+		$request['port'] = ($matches[6] ? $matches[6] : 80);
+		$request['path'] = ($matches[7] ? $matches[7] : "/");
+		$request['header'] = $this->default_header;
+		$request['header_only'] = false;
+		$this->set_header($request, "Host", $request['host']);
+		
+		$host = ($request['ssl'] ? "ssl://" : "").$request['host'];
+		$request['fp'] = fsockopen($host, $request['port']);
+		return $request;
+	}
+	
+	private function set_header(&$req, $header, $value) {
+		foreach($req['header'] as $name => $val) {
+			if(strtolower($name) == strtolower($header)) {
+				unset($req['header'][$name]);
+				break;
+			}
+		}
+		$req['header'][$header] = $value;
+	}
+	
+	private function send_header($req) {
+		foreach($req['header'] as $name => $val) {
+			$this->fputs($req['fp'], $name.": ".$val."\r\n");
+		}
+		$cookiestr = NULL;
+		foreach($this->cookies as $cookiename => $cookievalue) {
+			if($cookiestr)
+				$cookiestr.="; ";
+			$cookiestr .= $cookiename."=".$cookievalue;
+		}
+		if($cookiestr)
+			$this->fputs($req['fp'], "Cookie: ".$cookiestr."\r\n");
+	}
+	
+	private function process_request(&$req, $data = null) {
+		$this->fputs($req['fp'], $req['method']." ".$req['path']." HTTP/1.1\r\n");
+		$this->send_header($req);
+		$this->fputs($req['fp'], "\r\n");
+		if($data)
+			$this->fputs($req['fp'], $data);
+		
+		$req['reply_header'] = array();
+		$req['reply'] = "";
+		$recv_state = true;
+		$recv_header = true;
+		while(!feof($req['fp'])) {
+			if($recv_header) {
+				$recv = fgets($req['fp']);
+				if($this->debug)
+					echo $recv;
+				$line = str_replace(array("\r", "\n"), array("", ""), $recv);
+				if($recv_state) {
+					$exp = explode(" ", $line, 3);
+					$req['state'] = $exp[1];
+					$req['state_text'] = $exp[2];
+					$recv_state = false;
+					continue;
+				}
+				else if($line == "") {
+					$recv_header = false;
+					if($req['header_only'])
+						break;
+					else
+						continue;
+				}
+				$line = explode(": ", $line, 2);
+				if(strtolower($line[0]) == "set-cookie") {
+					$cookie = explode("=", $line[1], 2);
+					$cookieval = explode(";", $cookie[1]);
+					$this->cookies[$cookie[0]] = $cookieval[0];
+				}
+				$req['reply_header'][$line[0]] = $line[1];
+			} else {
+				$recv = fread($req['fp'], 512);
+				if($this->debug)
+					echo $recv;
+				$req['reply'] .= $recv;
+			}
+		}
+		if(!$req['header_only'])
+			fclose($req['fp']);
+	}
+	
+	public function post($host, $post, $full = false) {
+		$req = $this->create_request($host);
+		if(!$req)
+			return null;
+		$req['method'] = "POST";
+		
+		$data = "";
+		foreach($post as $key => $val) {
+            if(is_array($val)) {
+                foreach($val as $subval) {
+                    if($data != "") { $data.="&"; }
+                    $data .= urlencode($key)."=".urlencode($subval);
+                }
+            } else {
+                if($data != "") { $data.="&"; }
+                $data .= urlencode($key)."=".urlencode($val);
+            }
+		}
+		
+		$this->set_header($req, "Content-Type", "application/x-www-form-urlencoded");
+		$this->set_header($req, "Content-Length", strlen($data));
+		$this->process_request($req, $data);
+		
+		if($full)
+			return $req;
+		return $req['reply'];
+	}
+	
+	public function get($host, $full) {
+		$req = $this->create_request($host);
+		if(!$req)
+			return null;
+		$req['method'] = "GET";
+		
+		$this->process_request($req);
+		
+		if($full)
+			return $req;
+		return $req['reply'];
+	}
+	
+	public function connect($host, $target, $full = false) {
+		$req = $this->create_request($host);
+		if(!$req)
+			return null;
+		$req['method'] = "CONNECT";
+		$req['path'] = $target;
+		$req['header_only'] = true;
+		
+		$this->process_request($req);
+		
+		if($full)
+			return $req;
+		return ($req['state'] == "200" ? $req['fp'] : NULL);
+	}
+	
+}
+
+?>
\ No newline at end of file
-- 
2.20.1