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pixelfed/app/Services/CustomEmojiService.php

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<?php
namespace App\Services;
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use App\Models\CustomEmoji;
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use App\Util\ActivityPub\Helpers;
use Illuminate\Support\Facades\Http;
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use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Storage;
use Illuminate\Http\Client\RequestException;
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class CustomEmojiService
{
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public static function get($shortcode)
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{
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if(config('federation.custom_emoji.enabled') == false) {
return;
}
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return CustomEmoji::whereShortcode($shortcode)->first();
}
public static function import($url, $id = false)
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{
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if(config('federation.custom_emoji.enabled') == false) {
return;
}
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if(Helpers::validateUrl($url) == false) {
return;
}
$emoji = CustomEmoji::whereUri($url)->first();
if($emoji) {
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return;
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}
try {
$res = Http::acceptJson()->get($url);
} catch (RequestException $e) {
return;
} catch (\Exception $e) {
return;
}
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if($res->successful()) {
$json = $res->json();
if(
!$json ||
!isset($json['id']) ||
!isset($json['type']) ||
$json['type'] !== 'Emoji' ||
!isset($json['icon']) ||
!isset($json['icon']['mediaType']) ||
!isset($json['icon']['url']) ||
!isset($json['icon']['type']) ||
$json['icon']['type'] !== 'Image' ||
!in_array($json['icon']['mediaType'], ['image/jpeg', 'image/png', 'image/jpg'])
) {
return;
}
if(!self::headCheck($json['icon']['url'])) {
return;
}
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$emoji = CustomEmoji::firstOrCreate([
'shortcode' => $json['name'],
'domain' => parse_url($json['id'], PHP_URL_HOST)
], [
'uri' => $json['id'],
'image_remote_url' => $json['icon']['url']
]);
if($emoji->wasRecentlyCreated == false) {
if(Storage::exists('public/' . $emoji->media_path)) {
Storage::delete('public/' . $emoji->media_path);
}
}
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$ext = '.' . last(explode('/', $json['icon']['mediaType']));
$dest = storage_path('app/public/emoji/') . $emoji->id . $ext;
copy($json['icon']['url'], $dest);
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$emoji->media_path = 'emoji/' . $emoji->id . $ext;
$emoji->save();
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$name = str_replace(':', '', $json['name']);
Cache::forget('pf:custom_emoji');
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Cache::forget('pf:custom_emoji:' . $name);
if($id) {
StatusService::del($id);
}
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return;
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} else {
return;
}
}
public static function headCheck($url)
{
try {
$res = Http::head($url);
} catch (RequestException $e) {
return false;
} catch (\Exception $e) {
return false;
}
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if(!$res->successful()) {
return false;
}
$type = $res->header('content-type');
$length = $res->header('content-length');
if(
!$type ||
!$length ||
!in_array($type, ['image/jpeg', 'image/png', 'image/jpg']) ||
$length > config('federation.custom_emoji.max_size')
) {
return false;
}
return true;
}
public static function all()
{
return Cache::rememberForever('pf:custom_emoji', function() {
$pgsql = config('database.default') === 'pgsql';
return CustomEmoji::when(!$pgsql, function($q, $pgsql) {
return $q->groupBy('shortcode');
})
->get()
->map(function($emojo) {
$url = url('storage/' . $emojo->media_path);
return [
'shortcode' => str_replace(':', '', $emojo->shortcode),
'url' => $url,
'static_url' => $url,
'visible_in_picker' => $emojo->disabled == false
];
})
->when($pgsql, function($collection) {
return $collection->unique('shortcode');
})
->toJson(JSON_UNESCAPED_SLASHES);
});
}
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}