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メタデータの解決と保存の処理を統一

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This commit is contained in:
shibafu 2020-05-10 18:50:03 +09:00
parent 1953143ab2
commit 4c3c5f18d2
3 changed files with 72 additions and 82 deletions
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43
app/Http/Controllers/Api/CardController.php
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@ -2,55 +2,18 @@
namespace App\Http\Controllers\Api;
use App\Metadata;
use App\MetadataResolver\MetadataResolver;
use App\Tag;
use App\Utilities\Formatter;
use App\Services\MetadataResolveService;
use Illuminate\Http\Request;
class CardController
{
/**
* @var MetadataResolver
*/
private $resolver;
/**
* @var Formatter
*/
private $formatter;
public function __construct(MetadataResolver $resolver, Formatter $formatter)
{
$this->resolver = $resolver;
$this->formatter = $formatter;
}
public function show(Request $request)
public function show(Request $request, MetadataResolveService $service)
{
$request->validate([
'url:required|url'
]);
$url = $this->formatter->normalizeUrl($request->input('url'));
$metadata = Metadata::find($url);
if ($metadata === null || ($metadata->expires_at !== null && $metadata->expires_at < now())) {
$resolved = $this->resolver->resolve($url);
$metadata = Metadata::updateOrCreate(['url' => $url], [
'title' => $resolved->title,
'description' => $resolved->description,
'image' => $resolved->image,
'expires_at' => $resolved->expires_at
]);
$tagIds = [];
foreach ($resolved->normalizedTags() as $tagName) {
$tag = Tag::firstOrCreate(['name' => $tagName]);
$tagIds[] = $tag->id;
}
$metadata->tags()->sync($tagIds);
}
$metadata = $service->execute($request->input('url'));
$metadata->load('tags');
$response = response($metadata);

53
app/Listeners/LinkCollector.php
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@ -3,32 +3,23 @@
namespace App\Listeners;
use App\Events\LinkDiscovered;
use App\Metadata;
use App\MetadataResolver\MetadataResolver;
use App\Tag;
use App\Utilities\Formatter;
use GuzzleHttp\Exception\TransferException;
use App\Services\MetadataResolveService;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Support\Facades\Log;
class LinkCollector
{
/** @var Formatter */
private $formatter;
/** @var MetadataResolver */
private $metadataResolver;
/** @var MetadataResolveService */
private $metadataResolveService;
/**
* Create the event listener.
*
* @param Formatter $formatter
* @param MetadataResolver $metadataResolver
* @param MetadataResolveService $metadataResolveService
*/
public function __construct(Formatter $formatter, MetadataResolver $metadataResolver)
public function __construct(MetadataResolveService $metadataResolveService)
{
$this->formatter = $formatter;
$this->metadataResolver = $metadataResolver;
$this->metadataResolveService = $metadataResolveService;
}
/**
@ -39,33 +30,11 @@ class LinkCollector
*/
public function handle(LinkDiscovered $event)
{
// URLの正規化
$url = $this->formatter->normalizeUrl($event->url);
// 無かったら取得
// TODO: ある程度古かったら再取得とかありだと思う
$metadata = Metadata::find($url);
if ($metadata == null || ($metadata->expires_at !== null && $metadata->expires_at < now())) {
try {
$resolved = $this->metadataResolver->resolve($url);
$metadata = Metadata::updateOrCreate(['url' => $url], [
'title' => $resolved->title,
'description' => $resolved->description,
'image' => $resolved->image,
'expires_at' => $resolved->expires_at
]);
$tagIds = [];
foreach ($resolved->normalizedTags() as $tagName) {
$tag = Tag::firstOrCreate(['name' => $tagName]);
$tagIds[] = $tag->id;
}
$metadata->tags()->sync($tagIds);
} catch (TransferException $e) {
// 何らかの通信エラーによってメタデータの取得に失敗した時、とりあえずエラーログにURLを残す
Log::error(self::class . ': メタデータの取得に失敗 URL=' . $url);
report($e);
}
try {
$this->metadataResolveService->execute($event->url);
} catch (\Exception $e) {
// 今のところこのイベントは同期実行されるので、上流をクラッシュさせないために雑catchする
report($e);
}
}
}

58
app/Services/MetadataResolveService.php Normal file
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@ -0,0 +1,58 @@
<?php
namespace App\Services;
use App\Metadata;
use App\MetadataResolver\MetadataResolver;
use App\Tag;
use App\Utilities\Formatter;
use GuzzleHttp\Exception\TransferException;
use Illuminate\Support\Facades\Log;
class MetadataResolveService
{
/** @var MetadataResolver */
private $resolver;
/** @var Formatter */
private $formatter;
public function __construct(MetadataResolver $resolver, Formatter $formatter)
{
$this->resolver = $resolver;
$this->formatter = $formatter;
}
public function execute(string $url): Metadata
{
// URLの正規化
$url = $this->formatter->normalizeUrl($url);
// 無かったら取得
// TODO: ある程度古かったら再取得とかありだと思う
$metadata = Metadata::find($url);
if ($metadata == null || ($metadata->expires_at !== null && $metadata->expires_at < now())) {
try {
$resolved = $this->resolver->resolve($url);
$metadata = Metadata::updateOrCreate(['url' => $url], [
'title' => $resolved->title,
'description' => $resolved->description,
'image' => $resolved->image,
'expires_at' => $resolved->expires_at
]);
$tagIds = [];
foreach ($resolved->normalizedTags() as $tagName) {
$tag = Tag::firstOrCreate(['name' => $tagName]);
$tagIds[] = $tag->id;
}
$metadata->tags()->sync($tagIds);
} catch (TransferException $e) {
// 何らかの通信エラーによってメタデータの取得に失敗した時、とりあえずエラーログにURLを残す
Log::error(self::class . ': メタデータの取得に失敗 URL=' . $url);
throw $e;
}
}
return $metadata;
}
}