/**
* Convert a single URL, assumes $url has been verified to be
* a real URL
*
* @param string $url
*/
public function convertUrl($url)
{
$oembed = Oembed::get_oembed_from_url($url, false, $this->oembedOptions);
if ($oembed) {
return array('Title' => '', 'Content' => $oembed->forTemplate());
}
$graph = OpenGraph::fetch($url);
if ($graph) {
foreach ($graph as $key => $value) {
$data[$key] = Varchar::create_field('Varchar', $value);
}
if (isset($data['url'])) {
return array('Title' => $graph->Title, 'Content' => MicroPost::create()->customise($data)->renderWith('OpenGraphPost'));
}
}
// get the post and take its <title> tag at the very least
$service = new RestfulService($url);
$response = $service->request();
if ($response && $response->getStatusCode() == 200) {
if (preg_match('/<title>(.*?)<\\/title>/is', $response->getBody(), $matches)) {
$title = Convert::raw2xml(trim($matches[1]));
return array('Title' => $title, 'Content' => "<a href='{$url}'>{$title}</a>");
}
}
}
public static function getOpenGraphData($url)
{
$returnValues = array();
//obtengo los datos del enlace con su imagen titulo y descripcion haaa y la url
$graph = OpenGraph::fetch($url);
foreach ($graph as $key => $value) {
switch ($key) {
case 'title':
$returnValues['title'] = $value;
break;
case 'description':
$returnValues['description'] = $value;
break;
case 'site_name':
$returnValues['siteName'] = $value;
break;
case 'image':
$returnValues['image'] = $value;
break;
}
}
//Checking video link if youtube or vimeo
$host = parse_url($url, PHP_URL_HOST);
if ($host == 'vimeo.com') {
$path = parse_url($url, PHP_URL_PATH);
$clip_id = substr($path, 1);
$returnValues['videoUrl'] = 'http://vimeo.com/moogaloop.swf?clip_id=' . $clip_id;
}
if ($host == 'www.youtube.com') {
$query = parse_url($url, PHP_URL_QUERY);
$v = explode("=", $query);
$returnValues['videoUrl'] = 'http://www.youtube.com/v/' . $v[1] . '?version=3&autohide=1';
}
if ($host == 'youtu.be') {
$path = parse_url($url, PHP_URL_PATH);
$returnValues['videoUrl'] = 'http://www.youtube.com/v' . $path . '?version=3&autohide=1';
}
//veo si alguno de los campos esta vacio y mando la funcion con curl
if (isset($returnValues['title']) && isset($returnValues['description']) && isset($returnValues['image']) && isset($returnValues['siteName'])) {
return $returnValues;
}
$arr = OpenGraph::wget($url);
if (!isset($returnValues['title'])) {
$returnValues['title'] = $arr['title'];
}
if (!isset($returnValues['description'])) {
$returnValues['description'] = $arr['description'];
}
if (!isset($returnValues['image'])) {
$returnValues['image'] = $arr['og:image'];
}
if (!isset($returnValues['images'])) {
$returnValues['images'] = $arr['images'][0];
}
return $returnValues;
}
/**
* @param \Zend\Uri\Uri $uri
*/
public function parse(Uri $uri)
{
$this->url = $uri->toString();
$html = \OpenGraph::fetch($uri->toString());
// open graph
$this->id = basename($uri->getPath());
$this->title = $html->title;
$this->description = $html->description;
$this->image = urlencode($html->image);
}
/**
* @param \Zend\Uri\Uri $uri
*/
public function parse(Uri $uri)
{
$this->url = $uri->toString();
$html = \OpenGraph::fetch($this->url);
$query = $uri->getQueryAsArray();
// open graph
$this->id = $query['v'];
$this->title = $html->title;
$this->description = $html->description;
$this->image = urlencode($html->image);
}
public static function analyze_url($url)
{
$graph = OpenGraph::fetch($url);
$keys = array('title', 'type', 'image', 'url', 'site_name', 'description');
$returns = array();
foreach ($keys as $key) {
if (!isset($graph->{$key})) {
continue;
}
$returns[$key] = $graph->{$key};
}
if ($returns && empty($returns['url'])) {
$returns['url'] = $url;
}
return $returns;
}
/**
* Extract URL from a string and fetch open graph data
*
* @return string
*/
public function getUrl($string)
{
// Save data for AJAX response
$response = [];
// Extract URL from comment string
preg_match(self::URL_REGEX, $string, $matches);
if (!filter_var($matches[0], FILTER_VALIDATE_URL) === false) {
// Fetch OpenGraph data
$opengraph = OpenGraph::fetch($matches[0]);
$keys = $opengraph->keys();
// Save OpenGraph data in $response
if (count($keys) > 0) {
foreach ($keys as $key) {
$response[$key] = $opengraph->__get($key);
}
}
}
return $response;
}
public static function fetch_image_post($post_id = '', $link = '', $comment_fbid = '')
{
if (!$post_id || !$link) {
return;
}
$image = '';
if ($comment_fbid) {
$app_id = FB_APP_ID;
$app_secret = FB_SECRET;
$url = "https://graph.facebook.com/{$comment_fbid}?access_token={$app_id}|{$app_secret}";
$obj = json_decode(file_get_contents_curl($url));
if (isset($obj->image) && $obj->image) {
$image = $obj->image->url;
}
}
var_dump($image);
die;
if (!empty($image)) {
$graph = OpenGraph::fetch($link);
var_dump($graph);
die;
}
}
/*
|--------------------------------------------------------------------------
| Application Routes
|--------------------------------------------------------------------------
|
| Here is where you can register all of the routes for an application.
| It's a breeze. Simply tell Laravel the URIs it should respond to
| and give it the controller to call when that URI is requested.
|
*/
Route::get('/', function () {
return view('home');
});
Route::post('fetch', function () {
require_once 'app/Classes/OpenGraph.php';
$graph = OpenGraph::fetch(Input::get('url'));
foreach ($graph as $key => $value) {
$output[$key] = $value;
}
return $output;
});
Route::post('sendtweet', function () {
$file = file_get_contents(Input::get('image'));
$file = base64_encode($file);
$uploaded_media = Twitter::uploadMedia(['media_data' => $file]);
return Twitter::postTweet(['status' => Input::get('text'), 'media_ids' => $uploaded_media->media_id_string]);
});
Route::get('twitter/login', ['as' => 'twitter.login', function () {
// your SIGN IN WITH TWITTER button should point to this route
$sign_in_twitter = true;
$force_login = false;
/**
* Validate changes to an article before committing changes
* @since Version 3.4
* @return boolean
*/
public function validate()
{
if (empty($this->title)) {
throw new Exception("Validation failed: title is empty");
return false;
}
if (empty($this->blurb)) {
throw new Exception("Validation failed: blurb is empty");
return false;
}
if (empty($this->body)) {
throw new Exception("Validation failed: body is empty");
return false;
}
if (!isset($this->Author) || !$this->Author instanceof User) {
$this->Author = new User($this->user_id);
}
/**
* Try to get the featured image from OpenGraph tags
*/
if ($this->source && !$this->featured_image) {
require_once "vendor" . DS . "scottmac" . DS . "opengraph" . DS . "OpenGraph.php";
$graph = \OpenGraph::fetch($this->source);
#printArray($graph->keys());
#printArray($graph->schema);
foreach ($graph as $key => $value) {
if ($key == "image" && strlen($value) > 0) {
$this->featured_image = $value;
}
}
}
return true;
}
/**
* Get html data with OpenGrap passing the Url
* @param $link url
* @return string data html
*/
public static function readContentWithOpenGraph($link)
{
$graph = OpenGraph::fetch($link);
if (!$graph) {
return false;
}
$url = $graph->url;
$image = $graph->image;
$domain = empty($url) ? parse_url($link) : parse_url($url);
$domain = $domain['scheme'] . '://' . $domain['host'];
// Trick to verify if the Image Url Exist because of some bad metatag dev
if (self::verifyUrl($image) == false) {
if (!($image[0] == '/')) {
$domain = $domain . '/';
}
$image = $domain . $image;
}
$title = $graph->title;
$html = '<div class="thumbnail">';
$html .= '<a target="_blank" href="' . $link . '"><h3>' . $title . '</h3>';
$html .= empty($image) ? '' : '<img alt="" src="' . $image . '" /></a>';
$html .= empty($graph->description) ? '' : '<p class="description">' . $graph->description . '</p>';
$html .= '<a href="' . $link . '">' . $link . '</a>';
$html .= '</div>';
return $html;
}
/**
* Validate changes to an article before committing changes
* @since Version 3.4
* @return boolean
* @throws \Exception if the article title is empty
* @throws \Exception if the article blurb and lead are empty
* @throws \Exception if the body and paragraphs AND source are empty
* @throws \Exception if the article title is too long
*/
public function validate()
{
if (empty($this->title)) {
throw new Exception("Validation failed: title is empty");
}
if (empty($this->blurb) && empty($this->lead)) {
throw new Exception("Validation failed: blurb is empty");
}
if (empty($this->body) && empty($this->source) && empty($this->paragraphs)) {
throw new Exception("Validation failed: body is empty");
}
if (is_null($this->blurb) || !empty($this->lead)) {
$this->blurb = "";
}
if (is_null($this->body) || !empty($this->paragraphs)) {
$this->body = "";
}
if (is_null($this->paragraphs)) {
$this->paragraphs = "";
}
if (is_null($this->lead)) {
$this->lead = "";
}
if (!isset($this->Author) || !$this->Author instanceof User) {
$this->Author = UserFactory::CreateUser($this->user_id);
}
if (!$this->date instanceof DateTime) {
$this->date = new DateTime();
}
if (!filter_var($this->approved)) {
$this->approved = self::STATUS_UNAPPROVED;
}
if (is_null($this->source)) {
$this->source = "";
}
if (empty($this->unique_id)) {
$this->unique_id = md5($this->title);
}
if (!is_bool($this->queued)) {
$this->queued = false;
}
/**
* Try to get the featured image from OpenGraph tags
*/
if ($this->source && !$this->featured_image) {
require_once "vendor" . DS . "scottmac" . DS . "opengraph" . DS . "OpenGraph.php";
$graph = \OpenGraph::fetch($this->source);
#printArray($graph->keys());
#printArray($graph->schema);
foreach ($graph as $key => $value) {
if ($key == "image" && strlen($value) > 0) {
$this->featured_image = $value;
}
}
}
return true;
}
/**
* html with data OpenGrap
* @param $link url
* @return string data html
*/
public static function getHtmlByLink($link)
{
$graph = OpenGraph::fetch($link);
$title = $graph->title;
$html = '<div>';
$html .= '<a target="_blank" href="'.$link.'"><h3>'.$title.'</h3>';
$html .= empty($graph->image) ? '' : '<img alt="" src="'.$graph->image.'" height="160" ></a>';
$html .= empty($graph->description) ? '' : '<div>'.$graph->description.'</div>';
$html .= "</div>";
return $html;
}
public function testFetchReturnsFalseForWebsiteWithNoOpenGraphMetadata()
{
$this->assertEquals(FALSE, OpenGraph::fetch('http://www.example.org/'));
}
<?php
$embedded = '';
$body = Idno\Core\site()->triggerEvent('url/expandintext', ['object' => $vars['object']], $vars['object']->body);
if (preg_match_all('/\\s+(https?:\\/\\/[^\\s]+)/i', $body, $matches)) {
foreach ($matches[1] as $m) {
// Parse with opengraph
$graph = OpenGraph::fetch($m);
$embedded .= "<div class=\"OpenGraphContainer\">";
$embedded .= "<a href=\"{$m}\" target=\"_blank\"><div>";
if ($graph->image) {
$embedded .= "<div class=\"OpenGraphImage\">" . "<img width=\"100px\"src=\"{$graph->image}\"/></div>";
} else {
$linkimg = Idno\Core\site()->config()->getDisplayURL() . "IdnoPlugins/OpenGraphConsumer/images/hyperlink.png";
$embedded .= "<div class=\"OpenGraphImage\">" . "<img width=\"100px\" src=\"{$linkimg}\"/></div>";
}
$embedded .= "<div class=\"OpenGraphContentOuter\">";
$embedded .= "<div class=\"OpenGraphContent\">";
if ($graph->title) {
$embedded .= "<strong>{$graph->title}</strong>";
}
if ($graph->description) {
// Trim it down
if (strlen($graph->description) > 300) {
$desc = substr($graph->description, 0, 300) . "...";
} else {
$desc = $graph->description;
}
$embedded .= "<p style=\"font-size:0.7em;\">{$desc}</p>";
}
$embedded .= "</div>";
/**
* Displays the page for generating HTML code for pocket entry
*/
public function code_generation_page()
{
?>
<div class="wrap">
<h2 class="pkt-nws-gnrtr"><?php
_e('Retrieve Items in Pocket and Generate HTML Code', self::DOMAIN);
?>
</h2>
<p><?php
_e('Specify search condition for Pocket data retrieval and push the button below.', self::DOMAIN);
?>
</p>
<div class="pkt-nws-gnrtr">
<form action="" method="post">
<div>
<label><?php
_e('State', self::DOMAIN);
?>
</label><br />
<select name="<?php
echo PocketUtil::OPT_STATE;
?>
" class="dropdown">
<option value="all" selected><?php
_e('all (both unread and archived items)', self::DOMAIN);
?>
</option>
<option value="unread"><?php
_e('only unread items', self::DOMAIN);
?>
</option>
<option value="archive"><?php
_e('only archived items', self::DOMAIN);
?>
</option>
</select>
</div>
<div>
<label><?php
_e('Favorite', self::DOMAIN);
?>
</label><br />
<select name="<?php
echo PocketUtil::OPT_FAVORITE;
?>
" class="dropdown">
<option value ="" selected><?php
_e('all (both un-favorited and favorited items)', self::DOMAIN);
?>
</option>
<option value="0"><?php
_e('only un-favorited items', self::DOMAIN);
?>
</option>
<option value="1"><?php
_e('only favorited items', self::DOMAIN);
?>
</option>
</select>
</div>
<div>
<label><?php
_e('Tag', self::DOMAIN);
?>
</label><br />
<input type="text" class="text" name="<?php
echo PocketUtil::OPT_TAG;
?>
" size="60" value="" />
</div>
<div>
<label><?php
_e('Content Type', self::DOMAIN);
?>
</label><br />
<select name="<?php
echo PocketUtil::OPT_CONTENT_TYPE;
?>
" class="dropdown">
<option value ="" selected><?php
_e('all', self::DOMAIN);
?>
</option>
<option value="article"><?php
_e('only articles', self::DOMAIN);
?>
</option>
<option value="video"><?php
_e('only videos or articles with embedded videos', self::DOMAIN);
?>
</option>
<option value="image"><?php
_e('only images', self::DOMAIN);
?>
</option>
</select>
</div>
<div>
<label><?php
_e('Sort', self::DOMAIN);
?>
</label><br />
<select name="<?php
echo PocketUtil::OPT_SORT;
?>
" class="dropdown">
<option value ="newest" selected><?php
_e('items in order of newest to oldest', self::DOMAIN);
?>
</option>
<option value="oldest"><?php
_e('items in order of oldest to newest', self::DOMAIN);
?>
</option>
<option value="title"><?php
_e('items in order of title alphabetically', self::DOMAIN);
?>
</option>
<option value="site"><?php
_e('items in order of URL alphabetically', self::DOMAIN);
?>
</option>
</select>
</div>
<div>
<label><?php
_e('Search', self::DOMAIN);
?>
</label><br />
<input type="text" class="text" name="<?php
echo PocketUtil::OPT_SEARCH;
?>
" size="60" value="" />
</div>
<div>
<label><?php
_e('Domain', self::DOMAIN);
?>
</label><br />
<input type="text" class="text" name="<?php
echo PocketUtil::OPT_DOMAIN;
?>
" size="60" value="" />
</div>
<div>
<label><?php
_e('Since (YYYY-MM-DD HH24:MM)', self::DOMAIN);
?>
</label><br />
<input type="text" class="text" name="<?php
echo PocketUtil::OPT_SINCE;
?>
" size="60" value="" />
</div>
<div>
<label><?php
_e('Count', self::DOMAIN);
?>
</label><br />
<input type="text" class="text" name="<?php
echo PocketUtil::OPT_COUNT;
?>
" size="60" value="" />
</div>
<div>
<label><?php
_e('Offset', self::DOMAIN);
?>
</label><br />
<input type="text" class="text" name="<?php
echo PocketUtil::OPT_OFFSET;
?>
" size="60" value="" />
</div>
<input type="hidden" name="action" value="generate" />
<div>
<input type="submit" class="button button-primary" value="<?php
_e('Generate', self::DOMAIN);
?>
" />
</div>
</form>
</div>
</div>
<br />
<?php
if ($_POST["action"] === 'generate') {
$consumer_key = get_option(self::DB_CONSUMER_KEY);
$access_token = get_option(self::DB_ACCESS_TOKEN);
$format = get_option(self::DB_FORMAT);
$state = $_POST[PocketUtil::OPT_STATE];
$favorite = $_POST[PocketUtil::OPT_FAVORITE];
$tag = $_POST[PocketUtil::OPT_TAG];
$contentType = $_POST[PocketUtil::OPT_CONTENT_TYPE];
$sort = $_POST[PocketUtil::OPT_SORT];
$search = $_POST[PocketUtil::OPT_SEARCH];
$domain = $_POST[PocketUtil::OPT_DOMAIN];
$since = $_POST[PocketUtil::OPT_SINCE];
$count = $_POST[PocketUtil::OPT_COUNT];
$offset = $_POST[PocketUtil::OPT_OFFSET];
if (isset($state) && $state) {
$option_params[PocketUtil::OPT_STATE] = $state;
}
if ($favorite == 0 || $favorite == 1) {
$option_params[PocketUtil::OPT_FAVORITE] = $favorite;
}
if (isset($tag) && $tag) {
$option_params[PocketUtil::OPT_TAG] = $tag;
}
if (isset($contentType) && $contentType) {
$option_params[PocketUtil::OPT_CONTENT_TYPE] = $contentType;
}
if (isset($sort) && $sort) {
$option_params[PocketUtil::OPT_SORT] = $sort;
}
if (isset($search) && $search) {
$option_params[PocketUtil::OPT_SEARCH] = $search;
}
if (isset($domain) && $domain) {
$option_params[PocketUtil::OPT_DOMAIN] = $domain;
}
if (isset($since) && $since) {
$gmt_time = get_gmt_from_date($since);
$option_params[PocketUtil::OPT_SINCE] = strtotime($gmt_time);
}
if (isset($count) && $count) {
$option_params[PocketUtil::OPT_COUNT] = $count;
}
if (isset($offset) && $offset) {
$option_params[PocketUtil::OPT_OFFSET] = $offset;
}
$option_params[PocketUtil::OPT_DETAIL_TYPE] = 'complete';
//$debug_mode = true;
if (isset($debug_mode) && $debug_mode) {
echo 'consumer_key: ' . $consumer_key . '<br />';
echo 'access_token: ' . $access_token . '<br />';
echo 'state: ' . $state . '<br />';
echo 'favorite: ' . $favorite . '<br />';
echo 'tag: ' . $tag . '<br />';
echo 'contentType: ' . $contentType . '<br />';
echo 'sort: ' . $sort . '<br />';
echo 'search: ' . $search . '<br />';
echo 'domain: ' . $domain . '<br />';
echo 'since: JST-> ' . $since . ' GMT-> ' . $gmt_time . '<br />';
echo 'count: ' . $count . '<br />';
echo 'offset: ' . $offset . '<br />';
echo 'Default timezone: ' . date_default_timezone_get() . '<br />';
echo 'Local timezone: ' . get_option('timezone_string') . '<br />';
echo 'Difference in time from default timezone: ' . get_option('gmt_offset') . '<br />';
echo 'Array of option parameters:<br />';
print_r($option_params);
}
$pocket_util = new PocketUtil();
$pocket_body = $pocket_util->retrieveItem($consumer_key, $access_token, $option_params);
$feedly_util = new FeedlyUtil();
if (!empty($pocket_body)) {
//Check if there is mached data.
if (!empty($pocket_body->list)) {
echo '<div class="wrap">';
echo '<h2 class="pkt-nws-gnrtr">' . __('Generated HTML Code', self::DOMAIN) . '</h2>';
echo '<p>' . __('Generated HTML code is as follows. Copy and paste it into your post.', self::DOMAIN) . '</p>';
echo '<div class="pkt-nws-gnrtr">';
echo '<label>' . __('HTML Code', self::DOMAIN) . '</label><br />';
echo '<textarea class="text" style="width:500px;height:300px;">';
foreach ($pocket_body->list as $pocket_item) {
//Post URL
$html_code = str_replace(self::FRMT_POST_URL, $pocket_item->{PocketUtil::REF_RESOLVED_URL}, stripslashes($format));
//Post title
$html_code = str_replace(self::FRMT_POST_TITLE, $pocket_item->{PocketUtil::REF_RESOLVED_TITLE}, $html_code);
//Site name and site URL
if (strpos($format, self::FRMT_SITE_NAME) !== false || strpos($format, self::FRMT_SITE_URL) !== false) {
$url_util = new URLUtil($pocket_item->{PocketUtil::REF_RESOLVED_URL});
$feedly_info_flag = false;
do {
$feedly_body = $feedly_util->getSiteInfo($url_util->getURL());
$site_name = $feedly_body->results[0]->{FeedlyUtil::REF_SITE_NAME};
$site_url = $feedly_body->results[0]->{FeedlyUtil::REF_SITE_URL};
if (isset($site_name) && isset($site_url)) {
$html_code = str_replace(self::FRMT_SITE_NAME, $site_name, $html_code);
$html_code = str_replace(self::FRMT_SITE_URL, $site_url, $html_code);
$feedly_info_flag = true;
break;
}
//Check next path existence
} while ($url_util->next());
if (!$feedly_info_flag) {
//Site URL (URL of top page) retrieval
$site_url = $pocket_util->getBaseUrl($pocket_item->{PocketUtil::REF_RESOLVED_URL});
$html_code = str_replace(self::FRMT_SITE_URL, $site_url, $html_code);
//Information retrieval of OGP
$graph = OpenGraph::fetch($pocket_item->{PocketUtil::REF_RESOLVED_URL});
if (isset($graph->site_name)) {
// Content of og:site_name
$html_code = str_replace(self::FRMT_SITE_NAME, $graph->site_name, $html_code);
} else {
// Content of title in top page
$site_name = $pocket_util->getSiteName($pocket_item->{PocketUtil::REF_RESOLVED_URL});
$html_code = str_replace(self::FRMT_SITE_NAME, $site_name, $html_code);
}
}
}
//Post excerpt
if (strpos($format, self::FRMT_POST_EXCERPT) !== false) {
if (isset($pocket_item->{PocketUtil::REF_EXCERPT})) {
// Content of excerpt in Pocket data
$html_code = str_replace(self::FRMT_POST_EXCERPT, $pocket_item->{PocketUtil::REF_EXCERPT}, $html_code);
} else {
//Information retrieval of OGP
$graph = OpenGraph::fetch($pocket_item->{PocketUtil::REF_RESOLVED_URL});
// Content of og:description
$html_code = str_replace(self::FRMT_POST_EXCERPT, $graph->description, $html_code);
}
}
//Post image
if (strpos($format, self::FRMT_POST_IMAGE) !== false) {
if (isset($graph->image)) {
//Information retrieval of OGP
$graph = OpenGraph::fetch($pocket_item->{PocketUtil::REF_RESOLVED_URL});
$html_code = str_replace(self::FRMT_POST_IMAGE, $graph->image, $html_code);
}
}
echo htmlspecialchars($html_code);
}
echo '</textarea>';
echo '</div>';
echo '</div>';
} else {
echo '<div class="pkt-nws-gnrtr">';
echo '<span class="red">' . __('INFO: Pocket data matching your specified condition was not found.', self::DOMAIN) . '</span>';
echo '</div>';
}
} else {
echo '<div class="pkt-nws-gnrtr">';
echo '<span class="red">' . __('ERROR: Pocket data retrieval failed.', self::DOMAIN) . '</span>';
echo '</div>';
}
}
}
<?php
/**
* Link Post Format template
*/
require_once get_template_directory() . '/inc/OpenGraph.php';
$graph = OpenGraph::fetch(get_field('external_url'));
if (!empty($graph)) {
$og_title = $graph->__isset('title') ? $graph->__get('title') : '';
$og_desc = $graph->__isset('description') ? $graph->__get('description') : '';
$og_image = $graph->__isset('image') ? $graph->__get('image') : '';
}
$page_id = get_option('page_for_posts');
?>
<h1 class="no-pad"><?php
the_title();
?>
</h1>
<hr style="border-color: <?php
__the_field('color_theme', 'esc_attr', $page_id);
?>
;" />
<?php
the_content();
?>
<hr style="border-color: <?php
__the_field('color_theme', 'esc_attr', $page_id);
?>
;" />
<div class="row open-graph-data">
/**
* Get OpenGraph tags from a specified URL
* Really stupid and elaborate Memcached expiry handling is due to a bug in Debian's PHP5-Memcached package
*
* @since Version 3.10.0
* @param string $url
* @return array
*/
public static function GetOpenGraphTags($url)
{
$Memcached = AppCore::GetMemcached();
$mckey = md5($url);
if ($result = $Memcached->fetch($mckey)) {
$exp = $Memcached->fetch(sprintf("%s-exp", $mckey));
if ($exp < time()) {
$Memcached->delete($mckey);
$Memcached->delete(sprintf("%s-exp", $mckey));
$result = false;
}
}
if (!$result) {
/**
* Ensure our OG handler is loaded
*/
require_once "vendor" . DS . "scottmac" . DS . "opengraph" . DS . "OpenGraph.php";
$graph = \OpenGraph::fetch($url);
$result = array();
foreach ($graph as $key => $value) {
$result[$key] = $value;
}
$Memcached->save($mckey, $result, 0);
// 0 or will not cache
$Memcached->save(sprintf("%s-exp", $mckey), strtotime("+1 day"), 0);
// alternate method of specifying expiry
}
return $result;
}
