From cf74c8e4ea3dd7d5f22cb6b4db50f9482a115a74 Mon Sep 17 00:00:00 2001
From: zsgsdesign <zsgsdesign@gmail.com>
Date: Sun, 24 Oct 2021 14:42:24 +0800
Subject: [PATCH] fetching attachments when problem empty

---
 Crawler.php | 16 +++++++++++++++-
 babel.json  |  2 +-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/Crawler.php b/Crawler.php
index 392aefb..d843a7d 100644
--- a/Crawler.php
+++ b/Crawler.php
@@ -92,6 +92,12 @@ private function _extractCodeForces($pcode, $url)
         $this->currentProblemCcode = $pcode;
         $this->imageIndex = 1;
 
+        $this->pro["input"] = null;
+        $this->pro["output"] = null;
+        $this->pro["note"] = null;
+        $this->pro["sample"] = null;
+        $this->pro["description"] = null;
+
         $response = $this->getCodeForcesResponse($url);
         $contentType = $response->headers['content-type'];
         $content = $response->body;
@@ -167,7 +173,15 @@ private function _extractCodeForces($pcode, $url)
             }
 
             $descriptionSpecificationDOM = $problemDOM->find('div.problem-statement', 0);
-            $this->pro["description"] = trim($descriptionSpecificationDOM->innertext);
+
+            if(filled(trim(HtmlDomParser::str_get_html($descriptionSpecificationDOM->innertext, true, true, DEFAULT_TARGET_CHARSET, false)->plaintext))) {
+                $this->pro["description"] = trim($descriptionSpecificationDOM->innertext);
+            }
+
+            if($this->pro["note"] == $this->pro["description"] && $this->pro["description"] == $this->pro["input"] && $this->pro["input"] == $this->pro["output"] && $this->pro["output"] == null) {
+                $contestID = $this->pro['contest_id'];
+                return $this->_extractCodeForces($pcode, "https://codeforces.com/gym/$contestID/attachments");
+            }
 
             $this->pro["note"] = $this->cacheImage(HtmlDomParser::str_get_html($this->pro["note"], true, true, DEFAULT_TARGET_CHARSET, false));
             $this->pro["description"] = $this->cacheImage(HtmlDomParser::str_get_html($this->pro["description"], true, true, DEFAULT_TARGET_CHARSET, false));
diff --git a/babel.json b/babel.json
index 96a8e5b..2d2c958 100644
--- a/babel.json
+++ b/babel.json
@@ -6,7 +6,7 @@
     "description": "CodeForces Gym Interface for NOJ",
     "license": "MIT",
     "repository": "https://github.com/NJUPTAAA/NOJ_Extension_Babel_Gym",
-    "version": "0.1.2",
+    "version": "0.1.3",
     "website": "https://codeforces.com/gyms",
     "custom": {
         "css": "resources/custom.css"