feat: deliver RSchedule service login exams and elastic glass navigation

2026-10-13 17:06:50 +08:00
parent 9193fd8e43
commit 8f20a341c4
35 changed files with 1742 additions and 453 deletions
@@ -0,0 +1,91 @@
+import 'dart:convert';
+
+import 'package:html/parser.dart' as html;
+
+import '../../domain/exam_schedule.dart';
+
+class SchoolExamAdapter {
+  static ExamSchedule extract(String content) {
+    try {
+      if (utf8.encode(content).length > 2 * 1024 * 1024) {
+        throw const FormatException();
+      }
+      final document = html.parse(content);
+      final selected = document.querySelector('#xqbh option[selected]');
+      final term = selected?.attributes['value'];
+      final table = document.querySelector('#sample-table-1');
+      const headers = [
+        'id',
+        '序号',
+        '学号',
+        '姓名',
+        '课程代码',
+        '课程名称',
+        '考核方式',
+        '考生编号',
+        '考场顺序号',
+        '考场',
+        '座位号',
+        '考试时间',
+      ];
+      if (selected == null ||
+          term == null ||
+          table == null ||
+          !RegExp(r'^\d+$').hasMatch(term)) {
+        throw const FormatException();
+      }
+      final rows = table.querySelectorAll('tr');
+      if (rows.isEmpty || rows.first.children.length != headers.length) {
+        throw const FormatException();
+      }
+      for (var i = 0; i < headers.length; i++) {
+        if (rows.first.children[i].text.trim() != headers[i]) {
+          throw const FormatException();
+        }
+      }
+      final records = <ExamRecord>[];
+      var explicitlyEmpty = false;
+      for (final row in rows.skip(1)) {
+        // DataTables can insert a single explicit no-data placeholder.
+        if (row.children.length == 1 &&
+            row.children.first.attributes['colspan'] == '12' &&
+            const [
+              '没有数据',
+              '暂无数据',
+              '无数据',
+              'No data available in table',
+            ].contains(row.text.trim())) {
+          explicitlyEmpty = true;
+          continue;
+        }
+        if (row.children.length != 12 ||
+            row.querySelector('script,style') != null) {
+          throw const FormatException();
+        }
+        final cells = row.children.map((c) => c.text.trim()).toList();
+        records.add(
+          ExamRecord(
+            code: cells[4],
+            name: cells[5],
+            assessment: cells[6],
+            candidate: cells[7],
+            sequence: cells[8],
+            room: cells[9],
+            seat: cells[10],
+            time: cells[11],
+          ),
+        );
+      }
+      if (records.isEmpty && !explicitlyEmpty) throw const FormatException();
+      return ExamSchedule.fromJson(
+        ExamSchedule(
+          semesterLabel: selected.text.trim(),
+          termId: term,
+          records: records,
+        ).toJson(),
+      );
+    } catch (_) {
+      throw const FormatException('未识别到完整的考试查询表，已有考试信息保持不变。');
+    }
+  }
+}