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コンテンツ情報取得の実装をapi.phpから剥がした

This commit is contained in:
shibafu 2018-04-15 02:05:41 +09:00
parent 0f39b502e8
commit 7ca0acacb4
9 changed files with 190 additions and 66 deletions
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10
app/MetadataResolver/Metadata.php Normal file
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@ -0,0 +1,10 @@
<?php
namespace App\MetadataResolver;
class Metadata
{
public $title = '';
public $description = '';
public $image = '';
}

24
app/MetadataResolver/MetadataResolver.php Normal file
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@ -0,0 +1,24 @@
<?php
namespace App\MetadataResolver;
class MetadataResolver implements Resolver
{
public $rules = [
'~(((sp\.)?seiga\.nicovideo\.jp/seiga(/#!)?|nico\.ms))/im~' => NicoSeigaResolver::class,
'~nijie\.info/view\.php~' => NijieResolver::class,
'/.*/' => OGPResolver::class
];
public function resolve(string $url): Metadata
{
foreach ($this->rules as $pattern => $class) {
if (preg_match($pattern, $url) === 1) {
$resolver = new $class;
return $resolver->resolve($url);
}
}
throw new \UnexpectedValueException('URL not matched.');
}
}

24
app/MetadataResolver/NicoSeigaResolver.php Normal file
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@ -0,0 +1,24 @@
<?php
namespace App\MetadataResolver;
class NicoSeigaResolver implements Resolver
{
public function resolve(string $url): Metadata
{
$client = new \GuzzleHttp\Client();
$res = $client->get($url);
if ($res->getStatusCode() === 200) {
$ogpResolver = new OGPResolver();
$metadata = $ogpResolver->parse($res->getBody());
// ページURLからサムネイルURLに変換
preg_match('~http://(?:(?:sp\\.)?seiga\\.nicovideo\\.jp/seiga(?:/#!)?|nico\\.ms)/im(\\d+)~', $url, $matches);
$metadata->image = "http://lohas.nicoseiga.jp/thumb/${matches[1]}l?";
return $metadata;
} else {
throw new \RuntimeException("{$res->getStatusCode()}: $url");
}
}
}

33
app/MetadataResolver/NijieResolver.php Normal file
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@ -0,0 +1,33 @@
<?php
namespace App\MetadataResolver;
class NijieResolver implements Resolver
{
public function resolve(string $url): Metadata
{
$client = new \GuzzleHttp\Client();
$res = $client->get($url);
if ($res->getStatusCode() === 200) {
$ogpResolver = new OGPResolver();
$metadata = $ogpResolver->parse($res->getBody());
$dom = new \DOMDocument();
@$dom->loadHTML(mb_convert_encoding($res->getBody(), 'HTML-ENTITIES', 'UTF-8'));
$xpath = new \DOMXPath($dom);
$dataNode = $xpath->query('//script[substring(@type, string-length(@type) - 3, 4) = "json"]');
foreach ($dataNode as $node) {
// 改行がそのまま入っていることがあるのでデコード前にエスケープが必要
$imageData = json_decode(preg_replace('/\r?\n/', '\n', $node->nodeValue), true);
if (isset($imageData['thumbnailUrl'])) {
$metadata->image = preg_replace('~nijie\\.info/.*/nijie_picture/~', 'nijie.info/nijie_picture/', $imageData['thumbnailUrl']);
break;
}
}
return $metadata;
} else {
throw new \RuntimeException("{$res->getStatusCode()}: $url");
}
}
}

52
app/MetadataResolver/OGPResolver.php Normal file
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@ -0,0 +1,52 @@
<?php
namespace App\MetadataResolver;
class OGPResolver implements Resolver
{
public function resolve(string $url): Metadata
{
$client = new \GuzzleHttp\Client();
$res = $client->get($url);
if ($res->getStatusCode() === 200) {
return $this->parse($res->getBody());
} else {
throw new \RuntimeException("{$res->getStatusCode()}: $url");
}
}
public function parse(string $html): Metadata
{
$dom = new \DOMDocument();
@$dom->loadHTML(mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8'));
$xpath = new \DOMXPath($dom);
$metadata = new Metadata();
$titleNode = $xpath->query('//meta[@*="og:title"]');
foreach ($titleNode as $node) {
if (!empty($node->getAttribute('content'))) {
$metadata->title = $node->getAttribute('content');
break;
}
}
$descriptionNode = $xpath->query('//meta[@*="og:description"]');
foreach ($descriptionNode as $node) {
if (!empty($node->getAttribute('content'))) {
$metadata->description = $node->getAttribute('content');
break;
}
}
$imageNode = $xpath->query('//meta[@*="og:image"]');
foreach ($imageNode as $node) {
if (!empty($node->getAttribute('content'))) {
$metadata->image = $node->getAttribute('content');
break;
}
}
return $metadata;
}
}

8
app/MetadataResolver/Resolver.php Normal file
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@ -0,0 +1,8 @@
<?php
namespace App\MetadataResolver;
interface Resolver
{
public function resolve(string $url): Metadata;
}

5
app/Providers/AppServiceProvider.php
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@ -2,6 +2,7 @@
namespace App\Providers;
use App\MetadataResolver\MetadataResolver;
use Illuminate\Support\ServiceProvider;
class AppServiceProvider extends ServiceProvider
@ -23,6 +24,8 @@ class AppServiceProvider extends ServiceProvider
*/
public function register()
{
//
$this->app->singleton(MetadataResolver::class, function ($app) {
return new MetadataResolver();
});
}
}

72
routes/api.php
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@ -1,5 +1,6 @@
<?php
use App\MetadataResolver\MetadataResolver;
use Illuminate\Http\Request;
/*
@ -17,75 +18,16 @@ Route::middleware('auth:api')->get('/user', function (Request $request) {
return $request->user();
});
Route::get('/checkin/card', function (Request $request) {
Route::get('/checkin/card', function (Request $request, MetadataResolver $resolver) {
$request->validate([
'url:required|url'
]);
$url = $request->input('url');
$client = new GuzzleHttp\Client();
$res = $client->get($url);
if ($res->getStatusCode() === 200) {
$dom = new DOMDocument();
@$dom->loadHTML(mb_convert_encoding($res->getBody(), 'HTML-ENTITIES', 'UTF-8'));
$xpath = new DOMXPath($dom);
$result = [
'title' => '',
'description' => '',
'image' => ''
];
$titleNode = $xpath->query('//meta[@*="og:title"]');
foreach ($titleNode as $node) {
if (!empty($node->getAttribute('content'))) {
$result['title'] = $node->getAttribute('content');
break;
}
}
$descriptionNode = $xpath->query('//meta[@*="og:description"]');
foreach ($descriptionNode as $node) {
if (!empty($node->getAttribute('content'))) {
$result['description'] = $node->getAttribute('content');
break;
}
}
$imageNode = $xpath->query('//meta[@*="og:image"]');
foreach ($imageNode as $node) {
if (!empty($node->getAttribute('content'))) {
$result['image'] = $node->getAttribute('content');
break;
}
}
// 一部サイトについては別のサムネイルの取得を試みる
if (mb_strpos($url, 'nico.ms/im') !== false ||
mb_strpos($url, 'seiga.nicovideo.jp/seiga/im') !== false ||
mb_strpos($url, 'sp.seiga.nicovideo.jp/seiga/#!/im') !== false) {
// ニコニコ静画用の処理
preg_match('~http://(?:(?:sp\\.)?seiga\\.nicovideo\\.jp/seiga(?:/#!)?|nico\\.ms)/im(\\d+)~', $url, $matches);
$result['image'] = "http://lohas.nicoseiga.jp/thumb/${matches[1]}l?";
} elseif (mb_strpos($url, 'nijie.info/view.php')) {
// ニジエ用の処理
$dataNode = $xpath->query('//script[substring(@type, string-length(@type) - 3, 4) = "json"]');
foreach ($dataNode as $node) {
// 改行がそのまま入っていることがあるのでデコード前にエスケープが必要
$imageData = json_decode(preg_replace('/\r?\n/', '\n', $node->nodeValue), true);
if (isset($imageData['thumbnailUrl'])) {
$result['image'] = preg_replace('~nijie\\.info/.*/nijie_picture/~', 'nijie.info/nijie_picture/', $imageData['thumbnailUrl']);
break;
}
}
}
$response = response()->json($result);
if (!config('app.debug')) {
$response = $response->setCache(['public' => true, 'max_age' => 86400]);
}
return $response;
} else {
abort($res->getStatusCode());
$metadata = $resolver->resolve($url);
$response = response()->json($metadata);
if (!config('app.debug')) {
$response = $response->setCache(['public' => true, 'max_age' => 86400]);
}
return $response;
});

28
tests/Unit/MetadataResolver/OGPResolverTest.php Normal file
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@ -0,0 +1,28 @@
<?php
namespace Tests\Unit\MetadataResolver;
use App\MetadataResolver\OGPResolver;
use GuzzleHttp\Exception\ClientException;
use Tests\TestCase;
class OGPResolverTest extends TestCase
{
public function testMissingUrl()
{
$resolver = new OGPResolver();
$this->expectException(ClientException::class);
$resolver->resolve('http://example.com/404');
}
public function testResolve()
{
$resolver = new OGPResolver();
$metadata = $resolver->resolve('http://ogp.me');
$this->assertEquals('Open Graph protocol', $metadata->title);
$this->assertEquals('The Open Graph protocol enables any web page to become a rich object in a social graph.', $metadata->description);
$this->assertEquals('http://ogp.me/logo.png', $metadata->image);
}
}