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Fix undefined oembed properties

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- Add Object\OEmbed class
This commit is contained in:
Hypolite Petovan 2018-07-22 13:01:53 -04:00
commit df917251ff
2 changed files with 134 additions and 89 deletions
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173
src/Content/OEmbed.php
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@ -19,7 +19,6 @@ use Friendica\Database\DBA;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Network;
use Friendica\Util\ParseUrl;
use stdClass;
require_once 'include/dba.php';
require_once 'mod/proxy.php';
@ -48,132 +47,128 @@ class OEmbed
/**
* @brief Get data from an URL to embed its content.
*
* @param string $embedurl The URL from which the data should be fetched.
* @param bool $no_rich_type If set to true rich type content won't be fetched.
* @param string $embedurl The URL from which the data should be fetched.
* @param bool $no_rich_type If set to true rich type content won't be fetched.
*
* @return bool|object Returns object with embed content or false if no embeddable
* content exists
* @return \Friendica\Object\OEmbed
*/
public static function fetchURL($embedurl, $no_rich_type = false)
{
$embedurl = trim($embedurl, "'");
$embedurl = trim($embedurl, '"');
$embedurl = trim($embedurl, '\'"');
$a = get_app();
$cache_key = 'oembed:' . $a->videowidth . ':' . $embedurl;
$condition = ['url' => normalise_link($embedurl), 'maxwidth' => $a->videowidth];
$oembed = DBA::selectFirst('oembed', ['content'], $condition);
if (DBA::isResult($oembed)) {
$txt = $oembed["content"];
$oembed_record = DBA::selectFirst('oembed', ['content'], $condition);
if (DBA::isResult($oembed_record)) {
$json_string = $oembed_record['content'];
} else {
$txt = Cache::get($a->videowidth . $embedurl);
$json_string = Cache::get($cache_key);
}
// These media files should now be caught in bbcode.php
// left here as a fallback in case this is called from another source
$noexts = ["mp3", "mp4", "ogg", "ogv", "oga", "ogm", "webm"];
$noexts = ['mp3', 'mp4', 'ogg', 'ogv', 'oga', 'ogm', 'webm'];
$ext = pathinfo(strtolower($embedurl), PATHINFO_EXTENSION);
$oembed = new \Friendica\Object\OEmbed($embedurl);
if (is_null($txt)) {
$txt = "";
if ($json_string) {
$oembed->parseJSON($json_string);
} else {
$json_string = '';
if (!in_array($ext, $noexts)) {
// try oembed autodiscovery
$redirects = 0;
$html_text = Network::fetchUrl($embedurl, false, $redirects, 15, "text/*");
$html_text = Network::fetchUrl($embedurl, false, $redirects, 15, 'text/*');
if ($html_text) {
$dom = @DOMDocument::loadHTML($html_text);
if ($dom) {
$xpath = new DOMXPath($dom);
$entries = $xpath->query("//link[@type='application/json+oembed']");
foreach ($entries as $e) {
$href = $e->getAttributeNode("href")->nodeValue;
$txt = Network::fetchUrl($href . '&maxwidth=' . $a->videowidth);
$href = $e->getAttributeNode('href')->nodeValue;
$json_string = Network::fetchUrl($href . '&maxwidth=' . $a->videowidth);
break;
}
$entries = $xpath->query("//link[@type='text/json+oembed']");
foreach ($entries as $e) {
$href = $e->getAttributeNode("href")->nodeValue;
$txt = Network::fetchUrl($href . '&maxwidth=' . $a->videowidth);
$href = $e->getAttributeNode('href')->nodeValue;
$json_string = Network::fetchUrl($href . '&maxwidth=' . $a->videowidth);
break;
}
}
}
}
$txt = trim($txt);
$json_string = trim($json_string);
if (!$txt || $txt[0] != "{") {
$txt = '{"type":"error"}';
} else { //save in cache
$j = json_decode($txt);
if (!empty($j->type) && $j->type != "error") {
DBA::insert('oembed', [
'url' => normalise_link($embedurl),
'maxwidth' => $a->videowidth,
'content' => $txt,
'created' => DateTimeFormat::utcNow()
], true);
}
Cache::set($a->videowidth . $embedurl, $txt, CACHE_DAY);
if (!$json_string || $json_string[0] != '{') {
$json_string = '{"type":"error"}';
}
$oembed->parseJSON($json_string);
if (!empty($oembed->type) && $oembed->type != 'error') {
DBA::insert('oembed', [
'url' => normalise_link($embedurl),
'maxwidth' => $a->videowidth,
'content' => $json_string,
'created' => DateTimeFormat::utcNow()
], true);
}
Cache::set($cache_key, $json_string, CACHE_DAY);
}
$j = json_decode($txt);
if (!is_object($j)) {
return false;
if ($oembed->type == 'error') {
return $oembed;
}
// Always embed the SSL version
if (isset($j->html)) {
$j->html = str_replace(["http://www.youtube.com/", "http://player.vimeo.com/"], ["https://www.youtube.com/", "https://player.vimeo.com/"], $j->html);
}
$j->embedurl = $embedurl;
$oembed->html = str_replace(['http://www.youtube.com/', 'http://player.vimeo.com/'], ['https://www.youtube.com/', 'https://player.vimeo.com/'], $oembed->html);
// If fetching information doesn't work, then improve via internal functions
if ($no_rich_type && ($j->type == "rich")) {
if ($no_rich_type && ($oembed->type == 'rich')) {
$data = ParseUrl::getSiteinfoCached($embedurl, true, false);
$j->type = $data["type"];
$oembed->type = $data['type'];
if ($j->type == "photo") {
$j->url = $data["url"];
if ($oembed->type == 'photo') {
$oembed->url = $data['url'];
}
if (isset($data["title"])) {
$j->title = $data["title"];
if (isset($data['title'])) {
$oembed->title = $data['title'];
}
if (isset($data["text"])) {
$j->description = $data["text"];
if (isset($data['text'])) {
$oembed->description = $data['text'];
}
if (is_array($data["images"])) {
$j->thumbnail_url = $data["images"][0]["src"];
$j->thumbnail_width = $data["images"][0]["width"];
$j->thumbnail_height = $data["images"][0]["height"];
if (is_array($data['images'])) {
$oembed->thumbnail_url = $data['images'][0]['src'];
$oembed->thumbnail_width = $data['images'][0]['width'];
$oembed->thumbnail_height = $data['images'][0]['height'];
}
}
Addon::callHooks('oembed_fetch_url', $embedurl, $j);
Addon::callHooks('oembed_fetch_url', $embedurl, $oembed);
return $j;
return $oembed;
}
private static function formatObject(stdClass $j)
private static function formatObject(\Friendica\Object\OEmbed $oembed)
{
$embedurl = $j->embedurl;
$jhtml = $j->html;
$ret = '<div class="oembed ' . $j->type . '">';
$ret = '<div class="oembed ' . $oembed->type . '">';
switch ($j->type) {
switch ($oembed->type) {
case "video":
if (isset($j->thumbnail_url)) {
$tw = (isset($j->thumbnail_width) && intval($j->thumbnail_width)) ? $j->thumbnail_width : 200;
$th = (isset($j->thumbnail_height) && intval($j->thumbnail_height)) ? $j->thumbnail_height : 180;
if ($oembed->thumbnail_url) {
$tw = (isset($oembed->thumbnail_width) && intval($oembed->thumbnail_width)) ? $oembed->thumbnail_width : 200;
$th = (isset($oembed->thumbnail_height) && intval($oembed->thumbnail_height)) ? $oembed->thumbnail_height : 180;
// make sure we don't attempt divide by zero, fallback is a 1:1 ratio
$tr = (($th) ? $tw / $th : 1);
@ -182,63 +177,63 @@ class OEmbed
$tpl = get_markup_template('oembed_video.tpl');
$ret .= replace_macros($tpl, [
'$baseurl' => System::baseUrl(),
'$embedurl' => $embedurl,
'$escapedhtml' => base64_encode($jhtml),
'$embedurl' => $oembed->embed_url,
'$escapedhtml' => base64_encode($oembed->html),
'$tw' => $tw,
'$th' => $th,
'$turl' => $j->thumbnail_url,
'$turl' => $oembed->thumbnail_url,
]);
} else {
$ret = $jhtml;
$ret = $oembed->html;
}
break;
case "photo":
$ret .= '<img width="' . $j->width . '" src="' . proxy_url($j->url) . '">';
$ret .= '<img width="' . $oembed->width . '" src="' . proxy_url($oembed->url) . '">';
break;
case "link":
break;
case "rich":
$ret .= proxy_parse_html($jhtml);
$ret .= proxy_parse_html($oembed->html);
break;
}
// add link to source if not present in "rich" type
if ($j->type != 'rich' || !strpos($j->html, $embedurl)) {
if ($oembed->type != 'rich' || !strpos($oembed->html, $oembed->embed_url)) {
$ret .= '<h4>';
if (!empty($j->title)) {
if (!empty($j->provider_name)) {
$ret .= $j->provider_name . ": ";
if (!empty($oembed->title)) {
if (!empty($oembed->provider_name)) {
$ret .= $oembed->provider_name . ": ";
}
$ret .= '<a href="' . $embedurl . '" rel="oembed">' . $j->title . '</a>';
if (!empty($j->author_name)) {
$ret .= ' (' . $j->author_name . ')';
$ret .= '<a href="' . $oembed->embed_url . '" rel="oembed">' . $oembed->title . '</a>';
if (!empty($oembed->author_name)) {
$ret .= ' (' . $oembed->author_name . ')';
}
} elseif (!empty($j->provider_name) || !empty($j->author_name)) {
} elseif (!empty($oembed->provider_name) || !empty($oembed->author_name)) {
$embedlink = "";
if (!empty($j->provider_name)) {
$embedlink .= $j->provider_name;
if (!empty($oembed->provider_name)) {
$embedlink .= $oembed->provider_name;
}
if (!empty($j->author_name)) {
if (!empty($oembed->author_name)) {
if ($embedlink != "") {
$embedlink .= ": ";
}
$embedlink .= $j->author_name;
$embedlink .= $oembed->author_name;
}
if (trim($embedlink) == "") {
$embedlink = $embedurl;
$embedlink = $oembed->embed_url;
}
$ret .= '<a href="' . $embedurl . '" rel="oembed">' . $embedlink . '</a>';
$ret .= '<a href="' . $oembed->embed_url . '" rel="oembed">' . $embedlink . '</a>';
} else {
$ret .= '<a href="' . $embedurl . '" rel="oembed">' . $embedurl . '</a>';
$ret .= '<a href="' . $oembed->embed_url . '" rel="oembed">' . $oembed->embed_url . '</a>';
}
$ret .= "</h4>";
} elseif (!strpos($j->html, $embedurl)) {
} elseif (!strpos($oembed->html, $oembed->embed_url)) {
// add <a> for html2bbcode conversion
$ret .= '<a href="' . $embedurl . '" rel="oembed">' . $j->title . '</a>';
$ret .= '<a href="' . $oembed->embed_url . '" rel="oembed">' . $oembed->title . '</a>';
}
$ret .= '</div>';

50
src/Object/OEmbed.php Normal file
View file

@ -0,0 +1,50 @@
<?php
namespace Friendica\Object;
/**
* OEmbed data object
*
* @see https://oembed.com/#section2.3
*
* @author Hypolite Petovan <mrpetovan@gmail.com>
*/
class OEmbed
{
public $embed_url = '';
public $type = '';
public $title = '';
public $author_name = '';
public $author_url = '';
public $provider_name = '';
public $provider_url = '';
public $cache_age = '';
public $thumbnail_url = '';
public $thumbnail_width = '';
public $thumbnail_height = '';
public $html = '';
public $url = '';
public $width = '';
public $height = '';
public function __construct($embed_url)
{
$this->embed_url = $embed_url;
}
public function parseJSON($json_string)
{
$properties = json_decode($json_string, true);
if (empty($properties)) {
return;
}
foreach ($properties as $key => $value) {
if (property_exists(__CLASS__, $key)) {
$this->{$key} = $value;
}
}
}
}