fix: automate graduate timetable read and refine blue glass Dock

2026-10-13 17:50:04 +08:00
parent 8f20a341c4
commit 476ef097ee
23 changed files with 1072 additions and 176 deletions
@@ -0,0 +1,97 @@
+import 'dart:convert';
+
+import 'school_navigation_policy.dart';
+
+/// Only serialize recognized table fragments, never a login document.
+const schoolPageProbeScript = r'''(() => {
+  const trusted = value => {
+    try {
+      const u = new URL(value);
+      return u.hostname === 'yjsjy.uestc.edu.cn' && !u.username && !u.password &&
+        ((u.protocol === 'https:' && (!u.port || u.port === '443')) ||
+         (u.protocol === 'http:' && (!u.port || u.port === '80'))) &&
+        /^\/pyxx(?:\/|$)/.test(u.pathname);
+    } catch (_) { return false; }
+  };
+  const topUrl = location.href;
+  const result = {topUrl, authenticated: false, pages: []};
+  if (!trusted(topUrl) || document.querySelector('input[type="password"]')) {
+    return JSON.stringify(result);
+  }
+  const topOrigin = new URL(topUrl).origin;
+  const home = /^\/pyxx\/home\/(?:index)?\/?$/.test(location.pathname);
+  const chrome = document.querySelector('#navbar') && document.querySelector('#main-container');
+  result.authenticated = typeof window.logout === 'function' && Boolean(chrome || home);
+  const seen = new Set();
+  const visit = (doc, depth) => {
+    if (!doc || depth > 4 || seen.size >= 16 || seen.has(doc)) return;
+    seen.add(doc);
+    let url;
+    try { url = doc.location.href; } catch (_) { return; }
+    if (!trusted(url) || new URL(url).origin !== topOrigin ||
+        doc.querySelector('input[type="password"]')) return;
+    for (const [kind, tableId, termId] of [
+      ['timetable', '#tbl', '#drpxq'], ['exams', '#sample-table-1', '#xqbh']
+    ]) {
+      const table = doc.querySelector(tableId), term = doc.querySelector(termId);
+      if (!table || !term || !term.options || term.selectedIndex < 0) continue;
+      const selected = term.cloneNode(true);
+      Array.from(selected.options).forEach((option, index) => {
+        if (index === term.selectedIndex) option.setAttribute('selected', 'selected');
+        else option.removeAttribute('selected');
+      });
+      const html = selected.outerHTML + table.outerHTML;
+      if (html.length <= 2 * 1024 * 1024) result.pages.push({kind, url, html});
+    }
+    for (const frame of doc.querySelectorAll('iframe,frame')) {
+      try { visit(frame.contentDocument, depth + 1); } catch (_) {}
+    }
+  };
+  visit(document, 0);
+  return JSON.stringify(result);
+})()''';
+
+class SchoolTableFragment {
+  const SchoolTableFragment(this.kind, this.url, this.html);
+  final String kind;
+  final Uri url;
+  final String html;
+}
+
+class SchoolPageEvidence {
+  const SchoolPageEvidence(this.authenticated, this.pages);
+  final bool authenticated;
+  final List<SchoolTableFragment> pages;
+
+  static SchoolPageEvidence decode(Object raw, Uri current) {
+    dynamic value = raw;
+    for (var i = 0; i < 2 && value is String; i++) {
+      value = jsonDecode(value);
+    }
+    if (value is! Map ||
+        value['topUrl'] != current.toString() ||
+        !SchoolNavigationPolicy.isGraduatePage(current)) {
+      throw const FormatException('Untrusted school page evidence');
+    }
+    final pages = <SchoolTableFragment>[];
+    final candidates = value['pages'];
+    if (candidates is List && candidates.length <= 32) {
+      for (final page in candidates) {
+        if (page is! Map || page['url'] is! String || page['html'] is! String) {
+          continue;
+        }
+        final uri = Uri.tryParse(page['url'] as String);
+        final content = page['html'] as String;
+        if (uri == null ||
+            !SchoolNavigationPolicy.isGraduatePage(uri) ||
+            uri.origin != current.origin ||
+            utf8.encode(content).length > 2 * 1024 * 1024 ||
+            !const ['timetable', 'exams'].contains(page['kind'])) {
+          continue;
+        }
+        pages.add(SchoolTableFragment(page['kind'] as String, uri, content));
+      }
+    }
+    return SchoolPageEvidence(value['authenticated'] == true, pages);
+  }
+}