fixed bugs.

Submitter.php

@@ -180,7 +180,7 @@ private function contestSubmit() {
         $params=[
             'problemid' => $this->post_data['iid'],
             'language' => $this->post_data['lang'],
-            'usercode' => base64_encode($this->post_data["solution"]),
+            'usercode' => base64_encode(urlencode($this->post_data["solution"])),
             // 'submit' => 'Submit',
         ];
 

Synchronizer.php

@@ -40,7 +40,7 @@ private function _loginAndGet($url)
     {
         $curl = new Curl();
         $response=$curl->grab_page([
-            'site' => 'http://acm.hdu.edu.cn',
+            'site' => 'http://acm.hdu.edu.cn/contests/contest_show.php?cid='.$this->vcid,
             'oj' => 'hdu', 
             'handle' => $this->selectedJudger["handle"]
         ]);
@@ -51,7 +51,7 @@ private function _loginAndGet($url)
                 'login' => 'Sign In',
             ];
             $curl->login([
-                'url' => 'http://acm.hdu.edu.cn/userloginex.php?action=login', 
+                'url' => 'http://acm.hdu.edu.cn/userloginex.php?cid='.$this->vcid, 
                 'data' => http_build_query($params), 
                 'oj' => 'hdu', 
                 'handle' => $this->selectedJudger["handle"]
@@ -290,6 +290,7 @@ public function crawlRank()
             }
         }
         $contestRankRaw = $contestModel->contestRankCache($this->noj_cid);
+        // Log::debug(json_encode($rank));
         $rankFinal = array_merge($rank,$contestRankRaw);
         usort($rankFinal, function ($a, $b) {
             if ($a["score"]==$b["score"]) {

babel.json

@@ -6,7 +6,7 @@
     "description": "HDU Interface for NOJ",
     "license": "MIT",
     "repository":"https://github.com/NJUPTAAA/NOJ_Extension_HDU",
-    "version":"0.3.0",
+    "version":"0.3.1",
     "website":"http://acm.hdu.edu.cn/",
     "custom":{
         "css":"resources/custom.css"