I wrote a script that communicates with a popular game, called kahoot. It logs in and answer's each question, and then echo's when it is finished. Here is it working on the command line. However, when I add this functionality to my website, when I run it it gives me a 504 gateway timeout, even though before the timeout it should have produced some output and echoed it to the page.
Here is the website code:
Full execution code:
<html>
<head>
<title>Kahoot bot</title>
</head>
<body>
<?php
$username = 'kahootbot28@gmail.com';
$password = 'botkahoot28';
$loginUrl = 'https://create.kahoot.it/rest/authenticate';
$kahootId = $_GET['quizid'];
$type = $_GET['what'];
if ($type == "bot") {
$call = "~/www/reteps.tk/go/kahoot-auto " . $_GET['gamepin'] . " " . $_GET['username'] . " ";
echo($call);
}
$pageUrl = 'https://create.kahoot.it/rest/kahoots/' . $kahootId;
$loginheader = array();
$loginheader[] = 'content-type: application/json';
$loginpost = new stdClass();
$loginpost->username = $username;
$loginpost->password = $password;
$loginpost->grant_type = "password";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $loginUrl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($loginpost));
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER,$loginheader);
$store = curl_exec($ch);
curl_close($ch);
$token = json_decode($store,true)["access_token"];
//get questions
$quizheader = array();
$quizheader[] = 'authorization: ' . $token;
$options = array(
'http' => array(
'method' => 'GET',
'header' => "Authorization: ".$token."\r\n"
)
);
$pairs = array(
0 => "red",
1 => "blue",
2 => "yellow",
3 => "green",
);
$context = stream_context_create($options);
$raw_result = file_get_contents($pageUrl, false, $context);
$result = json_decode($raw_result,true)["questions"];
echo("<a href='kahoot_bot'>back</a><br>");
foreach($result as $value) {
if ($type == "text") {
echo($value['question']." ");
}
$choices = $value['choices'];
for($i=0;$i<count($choices);$i++) {
if ($choices[$i]['correct'] == true) {
if ($type == "text") {
echo($choices[$i]['answer']."<br>");
} elseif ($type == "bot") {
$call .= $i;
} else {
echo($pairs[$i].", ");
}
break 1;
}
}
}
if ($type == "bot") {
$old_result = "";
$handle = popen($call . " 2>&1", "r");
$result = fread($handle, 2096);
echo($result);
while ((strpos($result, "end") !== false) != true) {
$result = fread($handle, 2096);
sleep(1);
if ($result != $old_result) {
echo($result);
$old_result = $result;
}
}
pclose($handle);
}
?>
</body>
</html>
