feat: import problems from qduoj

packages/import-qduoj/template/problem_import_qduoj.html

@@ -0,0 +1,28 @@
+{% extends "layout/basic.html" %}
+{% block content %}
+<div class="row">
+  <div class="medium-9 columns">
+    <div class="section">
+      <div class="section__body">
+        <form method="post" enctype="multipart/form-data" action="{{ url('file_upload') }}">
+          <input type="hidden" name="csrfToken" value="{{ handler.csrfToken }}">
+            <p>{{ _('Upload zipfile') }}:
+              <input type="hidden" name="title" value="QDUOJ_IMPORT">
+              <input type="hidden" name="redirect" value="{{ url('problem_import_qduoj') }}">
+              <input type="file" name="file">
+              <input type="submit" value="{{ _('Upload') }}" class="rounded primary button">
+            </p>
+        </form>
+      </div>
+    </div>
+  </div>
+  <div class="medium-3 columns">
+    <div class="section side">
+      <div class="section__body typo">
+        <h2>{{ _('What is this?') }}</h2>
+        <p>{{ _('With this feature, you can import problems that you can view from a site to here. Their title, content, tags and categories will be imported.') }}</p>
+      </div>
+    </div>
+  </div>
+</div>
+{% endblock %}