$text 			= "<br>".$_GET["text"];
$imageQuantity 	= mysql_real_escape_string($_GET["imagequantity"]);
if(empty($text)){
echo '0';
}else{
$usersmail 		=	mysql_real_escape_string($_SESSION["session_users_check"]);
$userspass 		= 	md5(md5(htmlentities(mysql_real_escape_string($_SESSION["session_pass_check"]))));
$find = mysql_query("SELECT email FROM (SELECT email FROM facebook_users UNION SELECT email FROM users) AS tablo WHERE tablo.email='$usersmail'");
if(mysql_num_rows($find)>0){
$findwrite 	=	 mysql_fetch_array($find);
$findmail	=	 $findwrite["email"];
$sql 		=	 mysql_query("SELECT * FROM users WHERE email = '$findmail' ORDER BY id DESC");
$write 		=	 mysql_fetch_array($sql);
$array 		=	 array(
		"id" 			 =>  $write['id'],
		"first_name"	 =>  $write['first_name'],
		"last_name"		 =>  $write['last_name'],
		"email"			 =>  $write['email']
);

$text = " " . str_replace("\n", " ", $text);
$urlRegex = "/(https?\:\/\/|\s)[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})(\/+[a-z0-9_.\:\;-]*)*(\?[\&\%\|\+a-z0-9_=,\.\:\;-]*)?([\&\%\|\+&a-z0-9_=,\:\;\.-]*)([\!\#\/\&\%\|\+a-z0-9_=,\:\;\.-]*)}*/i";
$hdr = "";

function getPage($url, $referer = null, $timeout = null, $header = "") {
	// php5-curl must be installed and enabled

	/*
	 if(!isset($timeout))
	 $timeout = 30;
	 $curl = curl_init();
	 if(strstr($referer,"://")){
	 curl_setopt ($curl, CURLOPT_REFERER, $referer);
	 }
	 curl_setopt ($curl, CURLOPT_URL, $url);
	 curl_setopt ($curl, CURLOPT_TIMEOUT, $timeout);
	 curl_setopt ($curl, CURLOPT_USERAGENT, sprintf("Mozilla/%d.0",rand(4,5)));
	 curl_setopt ($curl, CURLOPT_HEADER, (int)$header);
	 curl_setopt ($curl, CURLOPT_RETURNTRANSFER, 1);
	 curl_setopt ($curl, CURLOPT_SSL_VERIFYPEER, 0);
	 $html = curl_exec ($curl);
	 curl_close ($curl);
	 return $html;
	 */
	$res = array();
	$options = array(CURLOPT_RETURNTRANSFER => true, // return web page
	CURLOPT_HEADER => false, // do not return headers
	CURLOPT_FOLLOWLOCATION => true, // follow redirects
	CURLOPT_USERAGENT => "spider", // who am i
	CURLOPT_AUTOREFERER => true, // set referer on redirect
	CURLOPT_CONNECTTIMEOUT => 120, // timeout on connect
	CURLOPT_TIMEOUT => 120, // timeout on response
	CURLOPT_MAXREDIRS => 10, // stop after 10 redirects
	);
	$ch = curl_init($url);
	curl_setopt_array($ch, $options);
	$content = curl_exec($ch);
	$err = curl_errno($ch);
	$errmsg = curl_error($ch);
	$header = curl_getinfo($ch);
	curl_close($ch);

    $hrd = $header["content_type"];
    header("Content-Type: ".$hrd, true);

    $res['content'] = $content;
	$res['url'] = $header['url'];
	$res['header'] = $hrd;

    return $res;
}

function getTagContent($tag, $string) {
	$pattern = "/<$tag(.*?)>(.*?)<\/$tag>/i";

	preg_match_all($pattern, $string, $matches);
	$content = "";
	for ($i = 0; $i < count($matches[0]); $i++) {
		$currentMatch = strip_tags($matches[0][$i]);
		if (strlen($currentMatch) >= 120) {
			$content = $currentMatch;
			break;
		}
	}
	if ($content == "") {
		preg_match($pattern, $string, $matches);
		$content = $matches[0];
	}
	return str_replace("&nbsp;", "", $content);
}

function mediaYoutube($url) {
	$media = array();
	if (preg_match("/(.*?)v=(.*?)($|&)/i", $url, $matching)) {
		$vid = $matching[2];
		array_push($media, "http://i2.ytimg.com/vi/$vid/hqdefault.jpg");
		array_push($media, '<iframe id="' . date("YmdHis") . $vid . '" style="display: none; margin-bottom: 5px;" width="499" height="368" src="http://www.youtube.com/embed/' . $vid . '" frameborder="0" allowfullscreen></iframe>');
	} else {
		array_push($media, "", "");
	}
	return $media;
}

function mediaVimeo($url) {
	$url = str_replace("https://", "", $url);
	$url = str_replace("http://", "", $url);
	$breakUrl = explode("/", $url);
	$media = array();
	if ($breakUrl[1] != "") {
		$imgId = $breakUrl[1];
		$hash = unserialize(file_get_contents("http://vimeo.com/api/v2/video/$imgId.php"));
		array_push($media, $hash[0]['thumbnail_large']);
		array_push($media, '<iframe id="' . date("YmdHis") . $imgId . '" style="display: none; margin-bottom: 5px;" width="500" height="281" src="http://player.vimeo.com/video/' . $imgId . '" width="654" height="368" frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen ></iframe>');
	} else {
		array_push($media, "", "");
	}
	return $media;
}

function cannonicalLink($imgSrc, $referer) {
	if (strpos($imgSrc, "//") === 0)
		$imgSrc = "http:" . $imgSrc;
	else if (strpos($imgSrc, "/") === 0)
		$imgSrc = "http://" . cannonicalPage($referer) . $imgSrc;
	else
		$imgSrc = "http://" . cannonicalPage($referer) . '/' . $imgSrc;
	return $imgSrc;
}

function cannonicalImgSrc($imgSrc) {
	$imgSrc = str_replace("../", "", $imgSrc);
	$imgSrc = str_replace("./", "", $imgSrc);
	$imgSrc = str_replace(" ", "%20", $imgSrc);
	return $imgSrc;
}

function cannonicalRefererPage($url) {
	$cannonical = "";
	$barCounter = 0;
	for ($i = 0; $i < strlen($url); $i++) {
		if ($url[$i] != "/") {
			$cannonical .= $url[$i];
		} else {
			$cannonical .= $url[$i];
			$barCounter++;
		}
		if ($barCounter == 3) {
			break;
		}
	}
	return $cannonical;
}

function cannonicalPage($url) {
	$cannonical = "";

	if (substr_count($url, 'http://') > 1 || substr_count($url, 'https://') > 1 || (strpos($url, 'http://') !== false && strpos($url, 'https://') !== false))
		return $url;

	if (strpos($url, "http://") !== false)
		$url = substr($url, 7);
	else if (strpos($url, "https://") !== false)
		$url = substr($url, 8);

	for ($i = 0; $i < strlen($url); $i++) {
		if ($url[$i] != "/")
			$cannonical .= $url[$i];
		else
			break;
	}

	return $cannonical;
}

function getImageUrl($pathCounter, $url) {
	$src = "";
	if ($pathCounter > 0) {
		$urlBreaker = explode('/', $url);
		for ($j = 0; $j < $pathCounter + 1; $j++) {
			$src .= $urlBreaker[$j] . '/';
		}
	} else {
		$src = $url;
	}
	return $src;
}

function joinAll($matching, $number, $url, $content) {
	for ($i = 0; $i < count($matching[$number]); $i++) {
		$imgSrc = $matching[$number][$i] . $matching[$number + 1][$i];
		$src = "";
		$pathCounter = substr_count($imgSrc, "../");
		if (!preg_match("/https?\:\/\//i", $imgSrc)) {
			$src = getImageUrl($pathCounter, cannonicalLink($imgSrc, $url));
		}
		if ($src . $imgSrc != $url) {
			if ($src == "")
				array_push($content, $src . $imgSrc);
			else
				array_push($content, $src);
		}
	}
	return $content;
}

function getImages($text, $url, $imageQuantity) {
	$content = array();
	if (preg_match_all("/<img(.*?)src=(\"|\')(.+?)(gif|jpg|png|bmp)(\"|\')(.*?)(\/)?>(<\/img>)?/", $text, $matching)) {

		for ($i = 0; $i < count($matching[0]); $i++) {
			$src = "";
			$pathCounter = substr_count($matching[0][$i], "../");
			preg_match('/src=(\"|\')(.+?)(\"|\')/i', $matching[0][$i], $imgSrc);
			$imgSrc = cannonicalImgSrc($imgSrc[2]);
			if (!preg_match("/https?\:\/\//i", $imgSrc)) {
				$src = getImageUrl($pathCounter, cannonicalLink($imgSrc, $url));
			}
			if ($src . $imgSrc != $url) {
				if ($src == "")
					array_push($content, $src . $imgSrc);
				else
					array_push($content, $src);
			}
		}
	}
	/*if (preg_match_all("/<link(.*?)rel=(\"|\')(.*?)icon(.*?)(\"|\')(.*?)href=(\"|\')(.+?)(gif|jpg|png|bmp|ico)(\"|\')(.*?)(\/)?>(<\/link>)?/", $text, $matching)) {
	 $content = joinAll($matching, 8, $url, $content);
	 } else if (preg_match_all("/<link(.*?)href=(\"|\')(.+?)(gif|jpg|png|bmp|ico)(\"|\')(.*?)rel=(\"|\')(.*?)icon(.*?)(\"|\')(.*?)(\/)?>(<\/link>)?/", $text, $matching)) {
	 $content = joinAll($matching, 3, $url, $content);
	 }
	 if (preg_match_all("/<meta(.*?)itemprop=(\"|\')image(\"|\')(.*?)content=(\"|\')(.+?)(gif|jpg|png|bmp|ico)(\"|\')(.*?)(\/)?>(<\/meta>)?/", $text, $matching)) {
	 $content = joinAll($matching, 6, $url, $content);
	 } else if (preg_match_all("/<meta(.*?)content=(\"|\')(.+?)(gif|jpg|png|bmp|ico)(\"|\')(.*?)itemprop=(\"|\')image(\"|\')(.*?)(\/)?>(<\/meta>)?/", $text, $matching)) {
	 $content = joinAll($matching, 3, $url, $content);
	 }*/
	$content = array_unique($content);
	$content = array_values($content);

	$maxImages = $imageQuantity != -1 && $imageQuantity < count($content) ? $imageQuantity : count($content);

	$images = "";
	for ($i = 0; $i < count($content); $i++) {
		$size = getimagesize($content[$i]);
		if ($size[0] > 100 && $size[1] > 15) {// avoids getting very small images
			$images .= $content[$i] . "|";
			$maxImages--;
			if ($maxImages == 0)
				break;
		}
	}
	return substr($images, 0, -1);
}

function crawlCode($text) {
	$content = "";
	$contentSpan = "";
	$contentParagraph = "";
	$contentSpan = getTagContent("span", $text);
	$contentParagraph = getTagContent("p", $text);
	$contentDiv = getTagContent("div", $text);
	$content = $contentSpan;
	if (strlen($contentParagraph) > strlen($contentSpan) && strlen($contentParagraph) >= strlen($contentDiv))
		$content = $contentParagraph;
	else if (strlen($contentParagraph) > strlen($contentSpan) && strlen($contentParagraph) < strlen($contentDiv))
		$content = $contentDiv;
	else
		$content = $contentParagraph;
	return $content;
}

function separeMetaTagsContent($raw) {
	preg_match('/content="(.*?)"/i', $raw, $match);
    if(count($match) == 0){
        preg_match("/content='(.*?)'/i", $raw, $match);
    }
	return $match[1];
	// htmlentities($match[1]);
}

function getMetaTags($contents) {
	$result = false;
	$metaTags = array("url" => "", "title" => "", "description" => "", "image" => "");

	if (isset($contents)) {

		preg_match_all('/<meta(.*?)>/i', $contents, $match);

		foreach ($match[1] as $value) {

			if ((strpos($value, 'property="og:url"') !== false || strpos($value, "property='og:url'") !== false) || (strpos($value, 'name="url"') !== false || strpos($value, "name='url'") !== false))
				$metaTags["url"] = separeMetaTagsContent($value);
			else if ((strpos($value, 'property="og:title"') !== false || strpos($value, "property='og:title'") !== false) || (strpos($value, 'name="title"') !== false || strpos($value, "name='title'") !== false))
				$metaTags["title"] = separeMetaTagsContent($value);
			else if ((strpos($value, 'property="og:description"') !== false || strpos($value, "property='og:description'") !== false) || (strpos($value, 'name="description"') !== false || strpos($value, "name='description'") !== false))
				$metaTags["description"] = separeMetaTagsContent($value);
			else if ((strpos($value, 'property="og:image"') !== false || strpos($value, "property='og:image'") !== false) || (strpos($value, 'name="image"') !== false || strpos($value, "name='image'") !== false))
				$metaTags["image"] = separeMetaTagsContent($value);
		}

		$result = $metaTags;
	}
	return $result;
}

function isImage($url) {
	if (preg_match("/\.(jpg|png|gif|bmp)$/i", $url))
		return true;
	else
		return false;
}

function extendedTrim($content) {
	return trim(str_replace("\n", " ", str_replace("\t", " ", preg_replace("/\s+/", " ", $content))));
}

function json_safe($data, $hdr){
    if(strstr($hdr, "windows"))
        return json_encode(json_fix($data));
    else
        return json_encode($data);
}

function json_fix($data){
    if(is_array($data))    {
        $new = array();
        foreach ($data as $k => $v)
        {
            $new[json_fix($k)] = json_fix($v);
        }
        $data = $new;
    }
    else if(is_object($data)){
        $datas = get_object_vars($data);
        foreach ($datas as $m => $v)
        {
            $data->$m = json_fix($v);
        }
    }
    else if(is_string($data)){
        $data = iconv('cp1251', 'utf-8', $data);
    }
    return $data;
}

if (preg_match($urlRegex, $text, $match)) {
	$ui	= $array["id"];
	$un	= $array["first_name"];
	$us	= $array["last_name"];
	$um = $array["email"];
	$raw = "";
	$title = "";
	$images = "";
	$description = "";
	$videoIframe = "";
	$finalUrl = "";
	$finalLink = "";
	$video = "no";

	if (strpos($match[0], " ") === 0)
		$match[0] = "http://" . substr($match[0], 1);

	$finalUrl = $match[0];
	$pageUrl = str_replace("https://", "http://", $finalUrl);

	if (isImage($pageUrl)) {
		$images = $pageUrl;
	} else {
		$urlData = getPage($pageUrl);
		if (!$urlData["content"] && strpos($pageUrl, "//www.") === false) {
			if (strpos($pageUrl, "http://") !== false)
				$pageUrl = str_replace("http://", "http://www.", $pageUrl);
			elseif (strpos($pageUrl, "https://") !== false)
				$pageUrl = str_replace("https://", "https://www.", $pageUrl);

			$urlData = getPage($pageUrl);
		}

		$pageUrl = $finalUrl = $urlData["url"];
		$raw = $urlData["content"];
        $hdr = $urlData["header"];

		$metaTags = getMetaTags($raw);

		$tempTitle = extendedTrim($metaTags["title"]);
		if ($tempTitle != "")
			$title = $tempTitle;

		if ($title == "") {
			if (preg_match("/<title(.*?)>(.*?)<\/title>/i", str_replace("\n", " ", $raw), $matching))
				$title = $matching[2];
		}

		$tempDescription = extendedTrim($metaTags["description"]);
		if ($tempDescription != "")
			$description = $tempDescription;
		else
			$description = crawlCode($raw);

		if ($description != "")
			$descriptionUnderstood = true;

		if (($descriptionUnderstood == false && strlen($title) > strlen($description) && !preg_match($urlRegex, $description) && $description != "" && !preg_match('/[A-Z]/', $description)) || $title == $description) {
			$title = $description;
			$description = crawlCode($raw);
		}

		$images = extendedTrim($metaTags["image"]);
		$media = array();

		if (strpos($pageUrl, "youtube.com") !== false) {
			$media = mediaYoutube($pageUrl);
			$images = $media[0];
			$videoIframe = $media[1];
		} else if (strpos($pageUrl, "vimeo.com") !== false) {
			$media = mediaVimeo($pageUrl);
			$images = $media[0];
			$videoIframe = $media[1];
		}
		if ($images == "") {
			$images = getImages($raw, $pageUrl, $imageQuantity);
		}
		if ($media != null && $media[0] != "" && $media[1] != "")
			$video = "yes";

		$title = extendedTrim($title);
		$pageUrl = extendedTrim($pageUrl);
		$description = extendedTrim($description);

		$description = preg_replace("/<script(.*?)>(.*?)<\/script>/i", "", $description);

	}

	$finalLink = explode("&", $finalUrl);
	$finalLink = $finalLink[0];
	$clink = cannonicalPage($pageUrl);
	$descript = strip_tags($description);
	$date			= date("y-m-d");
	$tarih 			= turkcetarih('j F Y',$date);
	$fark 			= "1";
	$saatfark 		= (date("H") + ($fark));
	$zaman1 		= mktime( $saatfark, date("i"), date("s"), date("m"), date("d"), date("Y"));
	$zaman 			= date("H:i:s",$zaman1);
	$yenitarih 		= $tarih." - ".$zaman;
	$ip				= ip();
	
	$answer = array("title" => $title,
					"titleEsc" => $title, 
					"text" => $text ,
					"url" => $finalLink,
					"pageUrl" => $finalUrl, 
					"cannonicalUrl" => cannonicalPage($pageUrl), 
					"description" => strip_tags($description),
					"descriptionEsc" => strip_tags($description),
					"images" => $images,
					"video" => $video,
					"videoIframe" => $videoIframe,
					"ui" => $ui,
					"un" => $un,
					"us" => $us,
					"um" => $um
					);