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My first attempt at creating an OEmbed interface for SilverStripe
/*
My first attempt at creating an OEmbed interface for SilverStripe
*/
<?php
/**
* Create an interface to load Oembed embed data
*
* @see [url for docs]
* @todo Finish a working version
*/
class OembedService extends RestfulService {
/**
* True if format request is formatted as an extension
* example: http://www.vimeo.com/api/oembed.{format}
* otherwise, defaults to querystring format request
*
* @var bool
*/
private $format_as_extension;
/**
* OembedObject with oembed data
*
* @var OembedObject
*/
private $oembed_object;
function __construct($oembed_endpoint_url, $format_as_extension=false) {
$this->baseURL = $oembed_endpoint_url;
$this->format_as_extension = $format_as_extension;
}
// format data for use with RestfulService
function request($url = '', $format='xml', $params=null, $method = "GET", $data = null, $headers = null) {
$query_string_params = array();
// add additional parameters if necessary
if (!is_null($params) && is_array($params)) {
$query_string_params = $params;
}
// set proper format request
if ($this->format_as_extension) { $this->baseURL .= '.' . $format; }
else { $query_string_params['format'] = $format; }
// add the url as parameter, oembed-style
$query_string_params['url'] = $url;
$this->setQueryString($query_string_params);
return parent::request('', $method, $data, $headers);
}
function requestOembedObject($url, $format='xml', $params=null) {
//have to make a custom XML object
try {
$response = $this->request($url, $format, $params);
// Debug::show($response);
$this->oembed_object = new OembedObject($response);
return true;
} catch (Exception $e) {
user_error("Error occurred in processing oembed response");
return false;
}
}
function getEmbedCode() {
return $this->oembed_object->getHtml();
}
}
class OembedObject extends Object {
// attributes. these are all based on the oembed spec
// <http://www.oembed.com/>
private $original_xml_data;
private $type;
private $version;
private $title;
private $author_name;
private $author_url;
private $provider_name;
private $provider_url;
private $cache_age;
private $thumbnail_url;
private $thumbnail_width;
private $thumbnail_height;
// additionl arguments, optional depending on type
private $url;
private $width;
private $height;
private $html;
function __construct($xml) {
$this->original_xml_data = $xml;
$this->parseOembedXml();
}
private function parseOembedXml() {
try {
$sxml = new SimpleXMLElement($this->original_xml_data->getBody());
$this->type = (string)$sxml->type;
$this->version = (string)$sxml->version;
$this->title = (string)$sxml->title;
$this->author_name = (string)$sxml->author_name;
$this->author_url = (string)$sxml->author_url;
$this->provider_name = (string)$sxml->provider_name;
$this->provider_url = (string)$sxml->provider_url;
$this->cache_age = (string)$sxml->cache_age;
$this->thumbnail_url = (string)$sxml->thumbnail_url;
$this->thumbnail_width = (string)$sxml->thumbnail_width;
$this->thumbnail_url = (string)$sxml->thumbnail_url;
switch($this->type) {
case 'photo':
$this->url = (string)$sxml->url;
$this->width = (string)$sxml->width;
$this->height = (string)$sxml->height;
break;
case 'video':
$this->html = (string)$sxml->html;
$this->width = (string)$sxml->width;
$this->height = (string)$sxml->height;
break;
case 'rich':
$this->url = (string)$sxml->html;
$this->width = (string)$sxml->width;
$this->height = (string)$sxml->height;
break;
default:
break;
}
return true;
} catch (Exception $e) {
user_error("Error occurred in processing Oembed xml");
return false;
}
}
// getters
function getOriginalXmlData() { return $this->original_xml_data; }
function getType() { return $this->type; }
function getVersion() { return $this->version; }
function getTitle() { return $this->title; }
function getAuthorName() { return $this->author_name; }
function getAuthorUrl() { return $this->author_url; }
function getProviderName() { return $this->provider_name; }
function getProviderUrl() { return $this->provider_url; }
function getCacheAge() { return $this->cache_age; }
function getThumbnailUrl() { return $this->thumbnail_url; }
function getThumbnailWidth() { return $this->thumbnail_width; }
function getThumbnailHeight() { return $this->thumbnail_height; }
// optional getters
function getUrl() { if(isset($this->url)) { return $this->url; }}
function getWidth() { if(isset($this->width)) { return $this->width; }}
function getHeight() { if(isset($this->height)) { return $this->height; }}
function getHtml() { if(isset($this->html)) { return $this->html; }}
}
?>
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