支持主动导入弹幕

app/Util/DanmakuUtil.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Util;
+
+use SplFileInfo;
+
+class DanmakuUtil
+{
+    public static function parse_danmaku(SplFileInfo $file): array
+    {
+        $document = new \DOMDocument();
+        $document->load($file->getRealPath());
+        $danmaku_items = $document->getElementsByTagName("d");
+        $result = [];
+        /** @var \DOMNode $item */
+        foreach ($danmaku_items as $item) {
+            $paramsNode = $item->attributes->getNamedItem("p");
+            $param_list = mb_split(",", $paramsNode->value);
+            if (sizeof($param_list) < 7) {
+                throw new \Exception("弹幕格式异常");
+            }
+            $userNode = $item->attributes->getNamedItem("user");
+            $result[] = [
+                "from" => $userNode->value,
+                "from_mid" => $param_list[6],
+                "content" => $item->textContent,
+                "created_at" => intval($param_list[4])/1000,
+            ];
+        }
+        return $result;
+    }
+}