first commit

var/Widget/CommentPage.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace Widget;
+
+use Exception;
+use Typecho\Router;
+use Typecho\Widget\Exception as WidgetException;
+
+/**
+ * Comment Page Widget
+ */
+class CommentPage extends Base implements ActionInterface
+{
+    /**
+     * Perform comment page action
+     *
+     * @throws Exception
+     */
+    public function action()
+    {
+        $page = abs($this->request->filter('int')->get('commentPage'));
+
+        $archive = Router::match($this->request->get('permalink'), [
+            'checkPermalink'    =>  false,
+            'commentPage'       =>  $page
+        ]);
+
+        if (!($archive instanceof Archive) || !$archive->is('single')) {
+            throw new WidgetException(_t('请求的地址不存在'), 404);
+        }
+
+        $currentCommentUrl = Router::url('comment_page', [
+            'permalink'     =>  $archive->path,
+            'commentPage'   =>  $page
+        ], $this->options->index);
+
+        $this->checkPermalink($currentCommentUrl);
+        $archive->render();
+    }
+
+    /**
+     * @param string $commentUrl
+     */
+    private function checkPermalink(string $commentUrl)
+    {
+        if ($commentUrl != $this->request->getRequestUrl()) {
+            $this->response->redirect($commentUrl, true);
+        }
+    }
+}