jonnybarnes.uk/app/WebMention.php

145 lines
3.9 KiB
PHP

<?php
namespace App;
use Cache;
use Twitter;
use HTMLPurifier;
use HTMLPurifier_Config;
use Illuminate\Filesystem\Filesystem;
use Illuminate\Database\Eloquent\Model;
use Jonnybarnes\WebmentionsParser\Authorship;
class WebMention extends Model
{
/**
* The database table used by the model.
*
* @var string
*/
protected $table = 'webmentions';
/**
* Define the relationship.
*
* @var array
*/
public function commentable()
{
return $this->morphTo();
}
/**
* We shall set a blacklist of non-modifiable model attributes.
*
* @var array
*/
protected $guarded = ['id'];
/**
* Get the author of the webmention.
*
* @return array
*/
public function getAuthorAttribute()
{
$authorship = new Authorship();
$hCard = $authorship->findAuthor(json_decode($this->mf2, true));
if (array_key_exists('properties', $hCard) &&
array_key_exists('photo', $hCard['properties'])
) {
$hCard['properties']['photo'][0] = $this->createPhotoLink($hCard['properties']['photo'][0]);
}
return $hCard;
}
/**
* Get the published value for the webmention.
*
* @return string
*/
public function getPublishedAttribute()
{
$microformats = json_decode($this->mf2, true);
if (isset($microformats['items'][0]['properties']['published'][0])) {
try {
$published = carbon()->parse(
$microformats['items'][0]['properties']['published'][0]
)->toDayDateTimeString();
} catch (\Exception $exception) {
$published = $this->updated_at->toDayDateTimeString();
}
} else {
$published = $this->updated_at->toDayDateTimeString();
}
return $published;
}
/**
* Get the filteres HTML of a reply.
*
* @return strin|null
*/
public function getReplyAttribute()
{
$microformats = json_decode($this->mf2, true);
if (isset($microformats['items'][0]['properties']['content'][0]['html'])) {
return $this->filterHTML($microformats['items'][0]['properties']['content'][0]['html']);
}
}
/**
* Create the photo link.
*
* @param string
* @return string
*/
public function createPhotoLink(string $url): string
{
$url = normalize_url($url);
$host = parse_url($url, PHP_URL_HOST);
if ($host == 'pbs.twimg.com') {
//make sure we use HTTPS, we know twitter supports it
return str_replace('http://', 'https://', $url);
}
if ($host == 'twitter.com') {
if (Cache::has($url)) {
return Cache::get($url);
}
$username = parse_url($url, PHP_URL_PATH);
try {
$info = Twitter::getUsers(['screen_name' => $username]);
$profile_image = $info->profile_image_url_https;
Cache::put($url, $profile_image, 10080); //1 week
} catch (Exception $e) {
return $url; //not sure here
}
return $profile_image;
}
$filesystem = new Filesystem();
if ($filesystem->exists(public_path() . '/assets/profile-images/' . $host . '/image')) {
return '/assets/profile-images/' . $host . '/image';
}
return $url;
}
/**
* Filter the HTML in a reply webmention.
*
* @param string The reply HTML
* @return string The filtered HTML
*/
private function filterHTML($html)
{
$config = HTMLPurifier_Config::createDefault();
$config->set('Cache.SerializerPath', storage_path() . '/HTMLPurifier');
$config->set('HTML.TargetBlank', true);
$purifier = new HTMLPurifier($config);
return $purifier->purify($html);
}
}