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<?php
session_start();
if (is_readable('dynmap_config.json')) {
$config = json_decode(file_get_contents('dynmap_config.json'), true);
$msginterval = $config['webchat-interval'];
} elseif (is_readable('dynmap_config.php')) {
$lines = file('dynmap_config.php');
array_shift($lines);
array_pop($lines);
$config = json_decode(implode(' ', $lines), true);
$msginterval = $config['webchat-interval'];
} else {
$msginterval = 2000;
}
if (isset($_SESSION['lastchat'])) {
$lastchat = $_SESSION['lastchat'];
} else {
$lastchat = 0;
}
if ($_SERVER['REQUEST_METHOD'] == 'POST' && $lastchat < time()) {
$micro = microtime(true);
$timestamp = round($micro * 1000.0);
$data = json_decode(trim(file_get_contents('php://input')));
$data->timestamp = $timestamp;
$data->ip = $_SERVER['REMOTE_ADDR'];
if (isset($_SESSION['userid'])) {
$uid = $_SESSION['userid'];
if (strcmp($uid, '-guest-')) {
$data->userid = $uid;
}
}
if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$proxy = array_map('trim', explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']));
$data->ip = $proxy[0];
}
if (is_readable('dynmap_webchat.json')) {
$old_messages = json_decode(file_get_contents('dynmap_webchat.json'), true);
}
if (!empty($old_messages)) {
foreach ($old_messages as $message) {
if (($timestamp - $config['updaterate'] - 10000) < $message['timestamp']) {
$new_messages[] = $message;
}
}
}
$new_messages[] = $data;
file_put_contents('dynmap_webchat.json', json_encode($new_messages));
$_SESSION['lastchat'] = time() + $msginterval;
echo "{ \"error\" : \"none\" }";
} elseif ($_SERVER['REQUEST_METHOD'] == 'POST' && $lastchat > time()) {
header('HTTP/1.1 403 Forbidden');
} else {
echo "{ \"error\" : \"none\" }";
}
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