Merge pull request #77 from shikorism/feature/narou-resolver

NarouResolverを追加

app/MetadataResolver/MetadataResolver.php

@@ -17,6 +17,7 @@ class MetadataResolver implements Resolver
         '~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,
         '/.*/' => OGPResolver::class
     ];
 

app/MetadataResolver/NarouResolver.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace App\MetadataResolver;
+
+use GuzzleHttp\Cookie\CookieJar;
+
+class NarouResolver implements Resolver
+{
+    public function resolve(string $url): Metadata
+    {
+        $cookieJar = CookieJar::fromArray(['over18' => 'yes'], '.syosetu.com');
+
+        $client = new \GuzzleHttp\Client();
+        $res = $client->get($url, ['cookies' => $cookieJar]);
+        if ($res->getStatusCode() === 200) {
+            $ogpResolver = new OGPResolver();
+            $metadata = $ogpResolver->parse($res->getBody());
+            $metadata->description = '';
+
+            $dom = new \DOMDocument();
+            @$dom->loadHTML(mb_convert_encoding($res->getBody(), 'HTML-ENTITIES', 'ASCII,JIS,UTF-8,eucJP-win,SJIS-win'));
+            $xpath = new \DOMXPath($dom);
+
+            $description = [];
+
+            // 作者名
+            $writerNodes = $xpath->query('//*[contains(@class, "novel_writername")]');
+            if ($writerNodes->length !== 0 && !empty($writerNodes->item(0)->textContent)) {
+                $description[] = trim($writerNodes->item(0)->textContent);
+            }
+
+            // あらすじ
+            $exNodes = $xpath->query('//*[@id="novel_ex"]');
+            if ($exNodes->length !== 0 && !empty($exNodes->item(0)->textContent)) {
+                $summary = trim($exNodes->item(0)->textContent);
+                $description[] = mb_strimwidth($summary, 0, 101, '…'); // 100 + '…'(1)
+            }
+
+            $metadata->description = implode(' / ', $description);
+
+            return $metadata;
+        } else {
+            throw new \RuntimeException("{$res->getStatusCode()}: $url");
+        }
+    }
+}