Modified compile, execute, and register scripts

backend/compile.php

@@ -22,7 +22,7 @@ $ret_stat = 0;
 
 if(strcmp($language, ".cpp") == 0)
 {
-    system("g++ ../users/" . $uname . "/" . $filename . ".cpp -o ../users/" . $uname . "/" . $filename , $ret_stat);
+    system("g++ ../users/" . $uname . "/" . $filename . ".cpp -o ../user_execs/" . $uname . "/" . $filename , $ret_stat);
     if($ret_stat != 0)
     {
         unlink("../users/" . $uname . "/" . $filename);
@@ -32,7 +32,7 @@ if(strcmp($language, ".cpp") == 0)
 
 else if(strcmp($language, ".java") == 0)
 {
-    system("javac ../users/" . $uname . "/" . $filename . '.java', $ret_stat);
+    system("javac -d ../user_execs/" . $uname . "/ ../users/" . $uname . "/" . $filename . '.java', $ret_stat);
 
     if($ret_stat != 0)
     {

backend/execute.php

@@ -23,18 +23,18 @@ $input_data = $postData['input_data'];
 $ret_stat = 0;
 
 $template = strval(rand(1, 1000000));
-$in_fname = "../users/" . $uname . "/" . "temp_in" . $template;
+$in_fname = "../user_execs/" . $uname . "/temp/temp_in" . $template;
 
 $file = fopen($in_fname, 'w');
 file_put_contents($in_fname, $input_data);
 fclose($file);
 
-$out_fname = "../users/" . $uname . "/" . "temp_out" . $template;
+$out_fname = "../user_execs/" . $uname . "/temp/temp_out" . $template;
 
 if (strcmp($language, ".cpp") == 0) {
-  system("./../users/" . $uname . "/" . $filename . " < " . $in_fname . " > " . $out_fname, $ret_stat);
+  system("./../user_execs/" . $uname . "/" . $filename . " < " . $in_fname . " > " . $out_fname, $ret_stat);
 } else if (strcmp($language, ".java") == 0) {
-  system("java -cp ../users/" . $uname . "/ " . $filename . " < " . $in_fname . " > " . $out_fname, $ret_stat);
+  system("java -cp ../user_execs/" . $uname . "/ " . $filename . " < " . $in_fname . " > " . $out_fname, $ret_stat);
 } else if (strcmp($language, ".py") == 0) {
   system("python3 ../users/" . $uname . "/" . $filename . ".py < " . $in_fname . " > " . $out_fname, $ret_stat);
 }

backend/register.php

@@ -26,6 +26,7 @@ if (isset($postData) && !empty($postData)) {
             'username' => $username
         ];
         mkdir('../users/' . $authData['username'], 0777, true);
+        mkdir('../user_execs/' . $authData['username'] . "/temp", 0777, true);
         $mysqli->query($sql1);
         echo json_encode($authData);
     }