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c.php
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<?php
session_start();
require_once "config.php";
$_SESSION['url'] = $_SERVER['REQUEST_URI'];
if (!isset($_SESSION['un'])) {
header("Location:login.php");
}
if (isset($_SESSION['un'])) {
$username = $_SESSION['un'];
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<title>Run Code</title>
<?php include 'linkers.php';?>
</head>
<body>
<div class="main">
<?php require 'nav2.php';?>
<div class="row log">
<div class="col-sm-12">
<div class="">
<h3 style="text-align:center;">Code Compiler</h3>
</div>
</div>
<div class="col-sm-3">
</div>
</div>
<br>
<br>
<div class="row ">
<div class="col-sm-2">
</div>
<div class="col-sm-8">
<?php
if ($_POST['code']) {
$lang = $_POST['language'];
$source = $_POST['code'];
//$input=$_POST['in'];
$pb = $_POST['pbn'];
$pid = $_POST['id'];
$us = $_SESSION['un'];
$isql = "SELECT * FROM archieve WHERE id='$pid'";
$si = mysqli_query($con, $isql);
$r4 = mysqli_fetch_array($si);
$limit = $r4['tlimit'];
//$input=$r4['tc'];
$CC = "gcc -o " . $username;
$out = "timeout 4s ./" . $username;
$code = $_POST["code"];
$input = $r4['tc'];
$filename_code = $username . "main.c";
$filename_in = $username . "input.txt";
$filename_error = $username . "error.txt";
$executable = $username;
$command = $CC . " -lm " . $filename_code;
$command_error = $command . " 2>" . $filename_error;
$check = 0;
$tle = 0;
$ce = 0;
$code = str_replace("system", "changed", $code);
$source = str_replace("system", "changed", $source);
$code = str_replace("exec", "changed", $code);
$source = str_replace("exec", "changed", $source);
$code = str_replace("bash", "changed", $code);
$source = str_replace("bash", "changed", $source);
$code = str_replace("fork", "changed", $code);
$source = str_replace("form", "changed", $source);
$file_code = fopen($filename_code, "w+");
fwrite($file_code, $code);
fclose($file_code);
$file_in = fopen($filename_in, "w+");
fwrite($file_in, $input);
fclose($file_in);
exec("chmod 777 $executable");
exec("chmod 777 $filename_error");
shell_exec($command_error);
$error = file_get_contents($filename_error);
$sql = "SELECT output FROM archieve WHERE id='$pid'";
$sq = mysqli_query($con, $sql);
$row = mysqli_fetch_array($sq);
$executionStartTime = microtime(true);
if (trim($error) == "") {
if (trim($input) == "") {
$output = shell_exec($out);
} else {
$out = $out . " < " . $filename_in;
$output = shell_exec($out);
}
echo "<div class=\"row\"><div class=\"col-sm-4\"></div><div class=\"col-sm-12\"><div class=\"alert alert-success rb\"><strong>Successfully Compiled!</strong> Click Below Submit Button To Submit.</div></div><div class=\"col-sm-2\"></div></div><br>";
} else if (!strpos($error, "error")) {
//echo "<pre>$error</pre>";
$error_message = htmlspecialchars($error);
echo "<pre class=\"rb\">$error_message</pre>";
if (trim($input) == "") {
$output = shell_exec($out);
} else {
$out = $out . " < " . $filename_in;
$output = shell_exec($out);
}
echo "<div class=\"row\"><div class=\"col-sm-4\"></div><div class=\"col-sm-12\"><div class=\"alert alert-success rb\"><strong>Successfully Compiled!</strong> Click Below Submit Button To Submit.</div></div><div class=\"col-sm-2\"></div></div><br>";
} else {
//echo "<pre>$error</pre>";
//echo "<div> <pre>$error</pre></div>";
$error_message = htmlspecialchars($error);
echo "<pre class=\"rb\">$error_message</pre>";
$check = 1;
$ce = 1;
echo "<div class=\"row\"><div class=\"col-sm-4\"></div><div class=\"col-sm-12\"><div class=\"alert alert-danger rb\"><strong>Compilation Error Or Submit Failed!</strong> Back To Problem Description And Submit Code Again.</div></div><div class=\"col-sm-2\"></div></div><br>";
}
$executionEndTime = microtime(true);
$seconds = $executionEndTime - $executionStartTime;
$seconds = sprintf('%0.2f', $seconds);
//echo "<pre>Compiled And Executed In: $seconds s</pre>";
$coutput = $output;
if (strlen($coutput) > 100000) {
// $check=2;
// echo "<script>
// document.getElementById(\"hide2\").style.display = \"none\";
// </script>";
// echo "<pre>Output memory limit exceeded</pre>";
$coutput = "System changes this output because of huge output file";
}
if ($seconds > $limit) {
$fr = "lt";
} else if ($ce == 1) {
$fr = "e";
} else if (trim($output) == "") {
$fr = "rte";
}
exec("rm $filename_code");
exec("rm *.o");
exec("rm *.txt");
exec("rm $executable");
if ($check == 0 || $check == 1) {
$source = str_replace("'", "''", $source);
$nsql = "INSERT into codes VALUES('$us','$source',NULL)";
$usql = "UPDATE archieve SET uoutput='$coutput' WHERE id='$pid'";
$csql = "SELECT uoutput FROM archieve WHERE id='$pid'";
$q3 = "SELECT id FROM codes ORDER BY id DESC ";
$snq = mysqli_query($con, $nsql);
$snd = mysqli_query($con, $usql);
$cnd = mysqli_query($con, $csql);
$sq3 = mysqli_query($con, $q3);
$r2 = mysqli_fetch_array($cnd);
$r4 = mysqli_fetch_array($sq3);
//$uo=$r2['uoutput'];
$ac = $row['output'];
$nid = $r4['id'];
}
echo "<div class=\"row\"><div class=\"col-sm-5\"></div><form action=\"allsubmission.php\" method=\"POST\"><input type=\"hidden\" name=\"pb\" value=\"$pb\"><input type=\"hidden\" name=\"id\" value=\"$pid\"><input type=\"hidden\" name=\"mid\" value=\"$nid\"><input type=\"hidden\" name=\"vd\" value=\"$fr\"><input type=\"hidden\" name=\"il\" value=\"$seconds\"><textarea style=\"display:none\" name=\"result\" rows=\"10\" cols=\"10\">$output</textarea><input class=\"btn btn-success \" type=\"submit\" value=\"Submit Code\"></div>";
} else if ($_POST['src']) {
require_once "config.php";
$lang = $_POST['language'];
$source = $_POST['src'];
$pb = $_POST['pbn'];
$pid = $_POST['id'];
$us = $_SESSION['un'];
$check = 0;
$tle = 0;
$ce = 0;
$isql = "SELECT * FROM contestproblems WHERE pbid='$pid'";
$si = mysqli_query($con, $isql);
$r4 = mysqli_fetch_array($si);
$limit = $r4['tlimit'];
$CC = "gcc -o " . $username;
$out = "timeout 4s ./" . $username;
$code = $_POST["src"];
$input = $r4['tc'];
$filename_code = $username . "main.c";
$filename_in = $username . "input.txt";
$filename_error = $username . "error.txt";
$executable = $username;
$command = $CC . " -lm " . $filename_code;
$command_error = $command . " 2>" . $filename_error;
$code = str_replace("system", "changed", $code);
$source = str_replace("system", "changed", $source);
$code = str_replace("exec", "changed", $code);
$source = str_replace("exec", "changed", $source);
$code = str_replace("bash", "changed", $code);
$source = str_replace("bash", "changed", $source);
$code = str_replace("fork", "changed", $code);
$source = str_replace("form", "changed", $source);
$file_code = fopen($filename_code, "w+");
fwrite($file_code, $code);
fclose($file_code);
$file_in = fopen($filename_in, "w+");
fwrite($file_in, $input);
fclose($file_in);
exec("chmod 777 $executable");
exec("chmod 777 $filename_error");
shell_exec($command_error);
$error = file_get_contents($filename_error);
$sql = "SELECT output FROM contestproblems WHERE pbid='$pid'";
$sq = mysqli_query($con, $sql);
$row = mysqli_fetch_array($sq);
$executionStartTime = microtime(true);
if (trim($error) == "") {
if (trim($input) == "") {
$output = shell_exec($out);
} else {
$out = $out . " < " . $filename_in;
$output = shell_exec($out);
}
echo "<div class=\"row\"><div class=\"col-sm-5\"></div><div class=\"col-sm-12\"><div class=\"alert alert-success rb\"><strong>Successfully Compiled!</strong> Click Submit Button To Submit.</div></div><div class=\"col-sm-2\"></div></div><br>";
} else if (!strpos($error, "error")) {
//echo "<pre>$error</pre>";
$error_message = htmlspecialchars($error);
echo "<pre class=\"rb\">$error_message</pre>";
if (trim($input) == "") {
$output = shell_exec($out);
} else {
$out = $out . " < " . $filename_in;
$output = shell_exec($out);
}
echo "<div class=\"row\"><div class=\"col-sm-5\"></div><div class=\"col-sm-12\"><div class=\"alert alert-success rb\"><strong>Successfully Compiled!</strong> Click Submit Button To Submit.</div></div><div class=\"col-sm-2\"></div></div><br>";
} else {
//echo "<pre>$error</pre>";
$error_message = htmlspecialchars($error);
echo "<pre class=\"rb\">$error_message</pre>";
$check = 1;
$ce = 1;
echo "<div class=\"row\"><div class=\"col-sm-5\"></div><div class=\"col-sm-12\"><div class=\"alert alert-danger rb\"><strong>Compilation Error Or Submit Failed!</strong> Back To Problem Description And Submit Code Again.</div></div><div class=\"col-sm-2\"></div></div><br>";
}
$executionEndTime = microtime(true);
$seconds = $executionEndTime - $executionStartTime;
$seconds = sprintf('%0.2f', $seconds);
//echo "<pre>Compiled And Executed In: $seconds s</pre>";
$coutput = $output;
if (strlen($coutput) > 100000) {
// $check=2;
// echo "<script>
// document.getElementById(\"hide2\").style.display = \"none\";
// </script>";
// echo "<pre>Output memory limit exceeded</pre>";
$coutput = "System changes this output because of huge output file";
}
if ($seconds > $limit) {
$fr = "lt";
} else if ($ce == 1) {
$fr = "e";
} else if (trim($output) == "") {
$fr = "rte";
}
exec("rm $filename_code");
exec("rm *.o");
exec("rm *.txt");
exec("rm $executable");
if ($check == 0 || $check == 1) {
$code = str_replace("'", "''", $code);
$nsql = "INSERT into code VALUES('$us','$code',NULL)";
$usql = "UPDATE contestproblems SET uoutput='$coutput' WHERE pbid='$pid'";
$csql = "SELECT uoutput FROM contestproblems WHERE pbid='$pid'";
$q3 = "SELECT id FROM code ORDER BY id DESC ";
$snq = mysqli_query($con, $nsql);
$snd = mysqli_query($con, $usql);
$cnd = mysqli_query($con, $csql);
$sq3 = mysqli_query($con, $q3);
$r2 = mysqli_fetch_array($cnd);
$r4 = mysqli_fetch_array($sq3);
//$uo=$r2['uoutput'];
$ac = $row['output'];
$nid = $r4['id'];
}
echo "<div class=\"row\"><div class=\"col-sm-3\"></div><div class=\"col-sm-5\"><form action=\"contestsubmission.php\" method=\"POST\"><input type=\"hidden\" name=\"pb\" value=\"$pb\"><input type=\"hidden\" name=\"id\" value=\"$pid\"><input type=\"hidden\" name=\"mid\" value=\"$nid\"><input type=\"hidden\" name=\"vd\" value=\"$fr\"><input type=\"hidden\" name=\"il\" value=\"$seconds\"><textarea style=\"display:none\" name=\"result\" rows=\"10\" cols=\"10\">$output</textarea><input class=\"btn btn-success tm\" type=\"submit\" value=\"Submit Code\"> </div><div class=\"col-sm-3\"></div></div>";
}
?>
</div>
<div class="col-sm-4">
</div>
</div>
</div>
</div><br><br><br><br><br><br><br><br><br><br>
<?php require 'footer.php';?>
</body>
</html>