110 lines
4.1 KiB
PHP
110 lines
4.1 KiB
PHP
<?php
|
||
|
||
namespace App\MetadataResolver;
|
||
|
||
use GuzzleHttp\Client;
|
||
use GuzzleHttp\Exception\ClientException;
|
||
use GuzzleHttp\Exception\ServerException;
|
||
|
||
class MetadataResolver implements Resolver
|
||
{
|
||
public $rules = [
|
||
'~(((sp\.)?seiga\.nicovideo\.jp/seiga(/#!)?|nico\.ms))/im~' => NicoSeigaResolver::class,
|
||
'~nijie\.info/view(_popup)?\.php~' => NijieResolver::class,
|
||
'~komiflo\.com(/#!)?/comics/(\\d+)~' => KomifloResolver::class,
|
||
'~www\.melonbooks\.co\.jp/detail/detail\.php~' => MelonbooksResolver::class,
|
||
'~ec\.toranoana\.jp/tora_r/ec/item/.*~' => ToranoanaResolver::class,
|
||
'~iwara\.tv/videos/.*~' => IwaraResolver::class,
|
||
'~www\.dlsite\.com/.*/work/=/product_id/..\d+\.html~' => DLsiteResolver::class,
|
||
'~www\.pixiv\.net/member_illust\.php\?illust_id=\d+~' => PixivResolver::class,
|
||
'~fantia\.jp/posts/\d+~' => FantiaResolver::class,
|
||
'~dmm\.co\.jp/~' => FanzaResolver::class,
|
||
'~www\.patreon\.com/~' => PatreonResolver::class,
|
||
'~www\.deviantart\.com/.*/art/.*~' => DeviantArtResolver::class,
|
||
'~\.syosetu\.com/n\d+[a-z]{2,}~' => NarouResolver::class,
|
||
'~ci-en\.jp/creator/\d+/article/\d+~' => CienResolver::class,
|
||
];
|
||
|
||
public $mimeTypes = [
|
||
'application/activity+json' => ActivityPubResolver::class,
|
||
'application/ld+json' => ActivityPubResolver::class,
|
||
'text/html' => OGPResolver::class,
|
||
'*/*' => OGPResolver::class
|
||
];
|
||
|
||
public $defaultResolver = OGPResolver::class;
|
||
|
||
public function resolve(string $url): Metadata
|
||
{
|
||
foreach ($this->rules as $pattern => $class) {
|
||
if (preg_match($pattern, $url) === 1) {
|
||
/** @var Resolver $resolver */
|
||
$resolver = app($class);
|
||
|
||
return $resolver->resolve($url);
|
||
}
|
||
}
|
||
|
||
$result = $this->resolveWithAcceptHeader($url);
|
||
if ($result !== null) {
|
||
return $result;
|
||
}
|
||
|
||
if (isset($this->defaultResolver)) {
|
||
/** @var Resolver $resolver */
|
||
$resolver = app($this->defaultResolver);
|
||
return $resolver->resolve($url);
|
||
}
|
||
|
||
throw new \UnexpectedValueException('URL not matched.');
|
||
}
|
||
|
||
public function resolveWithAcceptHeader(string $url): ?Metadata
|
||
{
|
||
try {
|
||
// Rails等はAcceptに */* が入っていると、ブラウザの適当なAcceptヘッダだと判断して全部無視してしまう。
|
||
// c.f. https://github.com/rails/rails/issues/9940
|
||
// そこでここでは */* を「Acceptヘッダを無視してきたレスポンス（よくある）」のハンドラとして扱い、
|
||
// Acceptヘッダには */* を足さないことにする。
|
||
$acceptTypes = array_diff(array_keys($this->mimeTypes), ['*/*']);
|
||
|
||
$client = app(Client::class);
|
||
$res = $client->request('GET', $url, [
|
||
'headers' => [
|
||
'Accept' => implode(', ', $acceptTypes)
|
||
]
|
||
]);
|
||
|
||
if ($res->getStatusCode() === 200) {
|
||
preg_match('/^[^;\s]+/', $res->getHeaderLine('Content-Type'), $matches);
|
||
$mimeType = $matches[0];
|
||
|
||
if (isset($this->mimeTypes[$mimeType])) {
|
||
$class = $this->mimeTypes[$mimeType];
|
||
$parser = app($class);
|
||
|
||
return $parser->parse($res->getBody());
|
||
}
|
||
|
||
if (isset($this->mimeTypes['*/*'])) {
|
||
$class = $this->mimeTypes['*/*'];
|
||
$parser = app($class);
|
||
|
||
return $parser->parse($res->getBody());
|
||
}
|
||
} else {
|
||
// code < 400 && code !== 200 => fallback
|
||
}
|
||
} catch (ClientException $e) {
|
||
// 406 Not Acceptable は多分Acceptが原因なので無視してフォールバック
|
||
if ($e->getResponse()->getStatusCode() !== 406) {
|
||
throw $e;
|
||
}
|
||
} catch (ServerException $e) {
|
||
// 5xx は変なAcceptが原因かもしれない（？）ので無視してフォールバック
|
||
}
|
||
|
||
return null;
|
||
}
|
||
}
|