作者名とあらすじの取得を試みる

app/MetadataResolver/NarouResolver.php

@@ -14,8 +14,31 @@ class NarouResolver implements Resolver
         $res = $client->get($url, ['cookies' => $cookieJar]);
         if ($res->getStatusCode() === 200) {
             $ogpResolver = new OGPResolver();
+            $metadata = $ogpResolver->parse($res->getBody());
+            $metadata->description = '';
 
-            return $ogpResolver->parse($res->getBody());
+            $dom = new \DOMDocument();
+            @$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");
         }