gistfile1.php

<?php

ini_set('default_charset', 'UTF-8');

$debug = 1;
$debug_cookie = 0;
$mode = NULL;
$matrikel = NULL;
$password = NULL;

if ($debug) {
	if ( isset($_GET['matrikel']) && isset($_GET['password']) ) {
		// curl http://localhost/test.php?matrikel=<matrikel>&password=<password>
		$matrikel = $_GET['matrikel'];
		$password = $_GET['password'];
		$mode = 'http';
			
	} else if ( isset($_SERVER['argc']) && $_SERVER['argc']>=1 ) {
		// php -f file.php <matrikel> <password>
		$matrikel = $_SERVER['argv']['1'];
		$password = $_SERVER['argv']['2'];
		$mode = 'shell';
	}
}


function fetchsite($url = NULL, $matrikel = NULL, $password = NULL) {
	global $debug, $debug_cookie, $mode;
		
	$login_url = "http://www.ba-dresden.de/index2.php?menu=5";
	$cookie = tempnam(sys_get_temp_dir(), 'cookie');

	if ( $url && $matrikel && $password ) {
		
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie);
		curl_setopt($ch, CURLOPT_URL, $login_url);
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, "matrikelnr=" . $matrikel . "&passwort=" . $password);

		ob_start();      // prevent any output
		curl_exec($ch); // execute the curl command
		ob_end_clean();  // stop preventing output

		curl_close($ch);
		unset($ch);

		if ($debug && $debug_cookie) {
			if (file_exists($cookie)) {
				$f = fopen($cookie, "r");
				if ($mode == 'http') echo "<pre>+ + + C O O K I E + + +";
				if ($mode == 'shell') echo "+ + + C O O K I E + + +\n";
				while (!feof($f)) {
					$buffer = fgets($f, 4096);
					if ( strpos($buffer, "#") === false ) echo $buffer;
				}
				fclose($f);
				if ($mode == 'http') echo "+ + + + + + + + + + + +</pre>";
				if ($mode == 'shell') echo "+ + + + + + + + + + + +";
			} else {
				if ($mode == 'http') echo "<pre>+ + + N O   C O O K I E + + +</pre>";
			}
		}
		
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
		curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie);
		curl_setopt($ch, CURLOPT_URL, $url);

		$result = curl_exec($ch);
		curl_close($ch);
		unset($ch);
		unlink($cookie);
		
		return html_entity_decode(htmlentities($result));
	} else {
		if ($debug) echo "Worst!";
	}
}

function render2json($type = NULL) {
	global $matrikel, $password;
	
	if ( $type == "news" ) {
	
		$url = "http://www.ba-dresden.de/index2.php?menu=5&item=20";		
		$html = fetchsite($url, $matrikel, $password);
		$result = array();
		$pattern = "/<td width=\"60\" class=\"line.*.\">(.+)<td width=\"15\"class=\"line.*.\">/siU";
		$ret = preg_match_all($pattern, $html, $events);
			foreach($events[1] as $event) {
				$html = $event;
				$ret = preg_match_all("/(.+)<\/td>.*" . 
					"<td width=\"90\" class=\"line.*.\">(.+)<\/td>.*" .
					"<td class=\"line.*.\">(.+)<\/td>" .// auslesen in data1-3 datum,person,inhalt
					"/siU", $html, $data, PREG_SET_ORDER);
				$tmp = array( 
					"date" => $data[0][1], 
					"author" => $data[0][2], 
					"message" => $data[0][3]
				);
				array_push($result, $tmp, $_ = null);							
			}

		return json_encode($result);
		
	} else if ( $type == "marks" ) {
	
		$url = "http://www.ba-dresden.de/index2.php?menu=5&item=23";
		$html = fetchsite($url, $matrikel, $password);
		$pattern = "/<div id=\"std_inh\">(.+)<tr>.*.<td class=\"textkleinschwarz\">/siU";
		$ret = preg_match_all($pattern, $html, $events);		
		$result = array(
				"table" => $events[0] 
				);
		
		return json_encode($result);
		
	} else if ( $type =="documents1" ) {
	
		$url = "http://www.ba-dresden.de/index2.php?menu=5&item=40&sub=31";
		$html = fetchsite($url, $matrikel, $password);
		$pattern = "/<td class=\"doc_liste\" >&nbsp;(.+)<\/td>/siU";
		$ret = preg_match_all($pattern, $html, $events);
		$result = array();
		foreach($events[1] as $event) {
				$html = mb_convert_encoding($event, 'utf-8', 'iso-8859-1');
				$ret = preg_match_all("/<a href=\"(.+)\" class=\"text\" target=\"about_blank\">(.+)<\/a>/siU", $html, $data, PREG_SET_ORDER);
				$tmp = array( 
					"link" => "http://www.ba-dresden.de/" . $data[0][1],
					"name" => $data[0][2]					
				);
				array_push($result, $tmp, $_ = null);							
			}

		return json_encode($result);	
	
	} else if ( $type =="documents2" ) {
	
		$url = "http://www.ba-dresden.de/index2.php?menu=5&item=40";
		$html = fetchsite($url, $matrikel, $password);
		$pattern = "/<td class=\"doc_liste\" >&nbsp;(.+)<\/td>/siU";
		$ret = preg_match_all($pattern, $html, $events);
		$semester = 0;
		$result = array();
		foreach($events[1] as $event) {
				$html = mb_convert_encoding($event, 'utf-8', 'iso-8859-1');
				$ret = preg_match_all("/<a href=\"(.+)\" class=\"text\" target=\"about_blank\">(.+)<\/a>/siU", $html, $data, PREG_SET_ORDER);
				if (substr($data[0][2], 0, 2) == "1 ")
					{
						$semester = $semester +1;
					}
				$tmp = array( 
					"link" => "http://www.ba-dresden.de/" . $data[0][1],
					"name" => $data[0][2],
					"semester" => $semester . " Semester"
				);
				array_push($result, $tmp, $_ = null);							
			}

		return json_encode($result);
		
	} else {
	
		die();
		
	}
}


//echo render2json("documents2");
echo render2json("news");
//echo render2json("marks");

if ($debug) {
	if ($mode == "shell") echo "\n";
}
?>