Add download testdata

modules/problem.js

@@ -241,3 +241,22 @@ app.post('/submit/:id', async (req, res) => {
     });
   }
 });
+
+app.get('/problem/:id/download', async (req, res) => {
+  try {
+    let id = parseInt(req.params.id);
+    let problem = await Problem.fromID(id);
+
+    if (!problem) throw 'No such problem';
+    if (!await problem.isAllowedUseBy(res.locals.user)) throw 'Permission denied';
+
+    await problem.loadRelationships();
+
+    res.download(problem.testdata.getPath(), `testdata_${id}.zip`);
+  } catch (e) {
+    syzoj.log(err);
+    res.render('error', {
+      err: err
+    });
+  }
+});

views/problem.ejs

@@ -23,6 +23,7 @@
       <div class="ui buttons">
         <a class="small ui primary button" href="<%= syzoj.utils.makeUrl(['submit', problem.id]) %>">提交</a>
         <a class="small ui positive button" href="<%= syzoj.utils.makeUrl(['judge_state'], { problem_id: problem.id }) %>">提交记录</a>
+        <a class="small ui yellow button" href="<%= syzoj.utils.makeUrl(['problem', problem.id, 'download']) %>">下载测试数据</a>
         <% if (problem.allowedEdit) { %>
         <a class="small ui button" href="<%= syzoj.utils.makeUrl(['problem', problem.id, 'edit']) %>">编辑题面</a>
         <a class="small ui button" href="<%= syzoj.utils.makeUrl(['problem', problem.id, 'upload']) %>">上传测试数据</a>