feat: opus专栏内容渲染

lib/http/read.dart

@@ -0,0 +1,35 @@
+import 'dart:convert';
+import 'package:html/parser.dart';
+import 'package:pilipala/models/read/opus.dart';
+import 'init.dart';
+
+class ReadHttp {
+  static List<String> extractScriptContents(String htmlContent) {
+    RegExp scriptRegExp = RegExp(r'<script>([\s\S]*?)<\/script>');
+    Iterable<Match> matches = scriptRegExp.allMatches(htmlContent);
+    List<String> scriptContents = [];
+    for (Match match in matches) {
+      String scriptContent = match.group(1)!;
+      scriptContents.add(scriptContent);
+    }
+    return scriptContents;
+  }
+
+  // 解析专栏 opus格式
+  static Future parseArticleOpus({required String id}) async {
+    var res = await Request().get('https://www.bilibili.com/opus/$id', extra: {
+      'ua': 'pc',
+    });
+    String scriptContent =
+        extractScriptContents(parse(res.data).body!.outerHtml)[0];
+    int startIndex = scriptContent.indexOf('{');
+    int endIndex = scriptContent.lastIndexOf('};');
+    String jsonContent = scriptContent.substring(startIndex, endIndex + 1);
+    // 解析JSON字符串为Map
+    Map<String, dynamic> jsonData = json.decode(jsonContent);
+    return {
+      'status': true,
+      'data': OpusDataModel.fromJson(jsonData),
+    };
+  }
+}