*/
class ParseUrl {
+ /**
+ * @brief Search for chached embeddable data of an url otherwise fetch it
+ *
+ * @param type $url The url of the page which should be scraped
+ * @param type $no_guessing If true the parse doens't search for
+ * preview pictures
+ * @param type $do_oembed The false option is used by the function fetch_oembed()
+ * to avoid endless loops
+ *
+ * @return array which contains needed data for embedding
+ * string 'url' => The url of the parsed page
+ * string 'type' => Content type
+ * string 'title' => The title of the content
+ * string 'text' => The description for the content
+ * string 'image' => A preview image of the content (only available
+ * if $no_geuessing = false
+ * array'images' = Array of preview pictures
+ * string 'keywords' => The tags which belong to the content
+ *
+ * @see ParseUrl::getSiteinfo() for more information about scraping
+ * embeddable content
+ */
public static function getSiteinfoCached($url, $no_guessing = false, $do_oembed = true) {
if ($url == "") {
return $data;
}
-
+ /**
+ * @brief Parse a page for embeddable content information
+ *
+ * This method parses to url for meta data which can be used to embed
+ * the content. If available it prioritizes Open Graph meta tags.
+ * If this is not available it uses the twitter cards meta tags.
+ * As fallback it uses standard html elements with meta informations
+ * like \<title\>Awesome Title\</title\> or
+ * \<meta name="description" content="An awesome description"\>
+ *
+ * @param type $url The url of the page which should be scraped
+ * @param type $no_guessing If true the parse doens't search for
+ * preview pictures
+ * @param type $do_oembed The false option is used by the function fetch_oembed()
+ * to avoid endless loops
+ * @param type $count Internal counter to avoid endless loops
+ *
+ * @return array which contains needed data for embedding
+ * string 'url' => The url of the parsed page
+ * string 'type' => Content type
+ * string 'title' => The title of the content
+ * string 'text' => The description for the content
+ * string 'image' => A preview image of the content (only available
+ * if $no_geuessing = false
+ * array'images' = Array of preview pictures
+ * string 'keywords' => The tags which belong to the content
+ *
+ * @todo https://developers.google.com/+/plugins/snippet/
+ * @verbatim
+ * <meta itemprop="name" content="Awesome title">
+ * <meta itemprop="description" content="An awesome description">
+ * <meta itemprop="image" content="http://maple.libertreeproject.org/images/tree-icon.png">
+ *
+ * <body itemscope itemtype="http://schema.org/Product">
+ * <h1 itemprop="name">Shiny Trinket</h1>
+ * <img itemprop="image" src="{image-url}" />
+ * <p itemprop="description">Shiny trinkets are shiny.</p>
+ * </body>
+ * @endverbatim
+ */
public static function getSiteinfo($url, $no_guessing = false, $do_oembed = true, $count = 1) {
$a = get_app();
$tag = "#" . $tag;
}
+ /**
+ * @brief Add a scheme to an url
+ *
+ * The src attribute of some html elements (e.g. images)
+ * can miss the scheme so we need to add the correct
+ * scheme
+ *
+ * @param string $url The url which possibly does have
+ * a missing scheme (a link to an image)
+ * @param string $scheme The url with a correct scheme
+ * (e.g. the url from the webpage which does contain the image)
+ *
+ * @return string The url with a scheme
+ */
private static function completeUrl($url, $scheme) {
$urlarr = parse_url($url);
+ // If the url does allready have an scheme
+ // we can stop the process here
if (isset($urlarr["scheme"])) {
return($url);
}
projects / friendica.git / blobdiff