public function getMetaData($uri)
{
$validator = new \Zend\Validator\Uri(array('allowRelative' => false));
if ($validator->isValid($uri)) {
$return = array('title' => $uri, 'description' => '');
$metaData = array_merge(array(), get_meta_tags($uri));
if (!key_exists('title', $metaData)) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, $uri);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
$data = curl_exec($ch);
curl_close($ch);
$doc = new \DOMDocument();
@$doc->loadHTML($data);
$nodes = $doc->getElementsByTagName('title');
if (isset($nodes->item(0)->nodeValue)) {
$metaData['title'] = $nodes->item(0)->nodeValue;
}
}
return array_merge($return, $metaData);
} else {
return false;
}
}
/**
* Get a list of thumbs from a URI
* @param string $uri
* @param integer $limit
* @return array
*/
public function getThumbs($uri, $limit = 5)
{
$validator = new \Zend\Validator\Uri(array('allowRelative' => false));
$return = array();
if ($validator->isValid($uri)) {
$parseInfo = parent::parse($uri);
switch ($parseInfo->host) {
// Youtube.com
case "www.youtube.com":
$queryArray = array();
parse_str($parseInfo->query, $queryArray);
if (isset($queryArray['v'])) {
$return = array("http://img.youtube.com/vi/" . $queryArray['v'] . "/0.jpg", "http://img.youtube.com/vi/" . $queryArray['v'] . "/1.jpg", "http://img.youtube.com/vi/" . $queryArray['v'] . "/2.jpg", "http://img.youtube.com/vi/" . $queryArray['v'] . "/3.jpg");
}
break;
// Dailymotion.com
// Dailymotion.com
case "www.dailymotion.com":
if (strpos($parseInfo->path, "/video") !== false) {
$return = array('http://www.dailymotion.com/thumbnail' . $parseInfo->path);
}
break;
// Vimeo.com
// Vimeo.com
case "vimeo.com":
$id = str_replace("/", "", $parseInfo->path);
$data = \Zend\Json\Json::decode(file_get_contents("http://vimeo.com/api/v2/video/{$id}.json"));
$return = array($data[0]->thumbnail_medium);
break;
// others webpage
// others webpage
default:
/**
* Credit to http://www.bitrepository.com
* http://www.bitrepository.com/extract-images-from-an-url.html
*/
// Fetch page
$string = $this->fetchPage($uri);
$out = array();
// Regex for SRC Value
$image_regex_src_url = '/<img[^>]*' . 'src=[\\"|\'](.*)[\\"|\']/Ui';
preg_match_all($image_regex_src_url, $string, $out, PREG_PATTERN_ORDER);
$return = $out[1];
for ($i = 0; $i < count($return); $i++) {
$tUri = new Uri();
$parseInfoThumb = $tUri->parse($return[$i]);
if (!$parseInfoThumb->isAbsolute()) {
$return[$i] = $parseInfo->scheme . "://" . $parseInfo->host . "" . $return[$i];
}
}
}
}
// check && return
return array_slice($return, 0, $limit);
}
/**
*
* @param string $uri
* @return string
*/
public function getType($uri)
{
$validator = new \Zend\Validator\Uri(array('allowRelative' => false));
if ($validator->isValid($uri)) {
$parseInfo = parent::parse($uri);
switch ($parseInfo->host) {
// Youtube.com
case "www.youtube.com":
$queryArray = array();
parse_str($parseInfo->query, $queryArray);
if (isset($queryArray['v'])) {
return self::TYPE_VIDEO_YOUTUBE;
}
break;
// Dailymotion.com
// Dailymotion.com
case "www.dailymotion.com":
if (strpos($parseInfo->path, "/video") !== false) {
return self::TYPE_VIDEO_DAILYMOTION;
}
break;
// Vimeo.com
// Vimeo.com
case "vimeo.com":
if (is_int($parseInfo->path)) {
return self::TYPE_VIDEO_VIMEO;
}
break;
}
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $uri);
curl_setopt($ch, CURLOPT_HEADER, TRUE);
curl_setopt($ch, CURLOPT_NOBODY, TRUE);
// remove body
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$head = curl_exec($ch);
$contentType = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
curl_close($ch);
if (strpos($contentType, "image") !== false) {
return self::TYPE_IMAGE;
} else {
if ($contentType == "application/x-shockwave-flash") {
return self::TYPE_SWF;
}
}
return self::TYPE_WEBPAGE;
} else {
return "";
}
}
/**
* @param $url
* @return bool
*/
public function isValidUrl($url)
{
$uri = new \Zend\Validator\Uri();
if (!$uri->isValid($url)) {
return false;
}
$parseUrl = parse_url($url);
if (!isset($parseUrl['host']) || empty($parseUrl['host'])) {
return false;
}
$validator = new \Zend\Validator\Hostname(\Zend\Validator\Hostname::ALLOW_DNS);
if (!$validator->isValid($parseUrl['host'])) {
return false;
}
if (!filter_var($parseUrl['host'], FILTER_VALIDATE_URL) === false) {
return false;
}
list($status) = get_headers($url);
if (strpos($status, '200') === FALSE) {
return false;
}
return true;
}
/**
*
* @param string $link
* @return string
*/
private function get_link($link)
{
// Google & Bing news are collections from multiply sources.
// We keep the description but set the link to final url.
$linkparts = parse_url($link);
// Yahoo adds some tracking at the end. Lets remove it
// if (preg_match ( '/yahoo/', $linkparts ['host'] )) {
// $link = explode ( ';', $link );
// $link = $link [0];
// if (isset ( $linkparts ['path'] )) {
// $path = preg_match ( "/RU=.*\/RK/", $linkparts ['path'], $matches );
// $matches = $matches [0];
// $matches = substr ( $matches, 3 );
// $matches = substr ( $matches, 0, - 3 );
// $validator = new \Zend\Validator\Uri ();
// if ($validator->isValid ( $matches )) {
// $link = $matches;
// }
// }
// }
// Google news are collections from multiply sources.
// We keep the description but set the link to final url.
if (preg_match('/google/', $linkparts['host'])) {
if (isset($linkparts['query'])) {
parse_str($linkparts['query'], $query);
$link = null;
if (isset($query['q'])) {
$link = $query['q'];
}
if (isset($query['url'])) {
$link = $query['url'];
}
}
}
// Bing news are collections from multiply sources.
// We keep the description but set the link to final url.
if (preg_match('/bing/', $linkparts['host'])) {
if (isset($linkparts['query'])) {
parse_str($linkparts['query'], $query);
if (isset($query['url'])) {
$link = $query['url'];
} else {
$link = null;
}
}
}
$validator = new \Zend\Validator\Uri();
if (!$validator->isValid($link)) {
return null;
}
return $link;
}
