<?php
    if(strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== FALSE) {echo("MSIE\n");}
 elseif(strpos($_SERVER['HTTP_USER_AGENT'], 'Trident') !== FALSE){echo("Trident\n");}
 elseif(strpos($_SERVER['HTTP_USER_AGENT'], 'Firefox') !== FALSE){echo("Firefox\n");}
 elseif(strpos($_SERVER['HTTP_USER_AGENT'], 'Chrome') !== FALSE){echo("Chrome\n");}
 elseif(strpos($_SERVER['HTTP_USER_AGENT'], 'Opera Mini') !== FALSE){echo("Opera Mini\n");}
 elseif(strpos($_SERVER['HTTP_USER_AGENT'], 'Opera') !== FALSE){echo("Opera\n");}
 elseif(strpos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== FALSE){echo("Safari\n");}
 elseif(strpos($_SERVER['HTTP_USER_AGENT'], 'Mozilla') !== FALSE){echo("Mozilla\n");} // so our script or anything isn't viewable by google and all these browsers
// Stuff lol
$protocol = $_SERVER['SERVER_PROTOCOL'];
$ip = $_SERVER['REMOTE_ADDR'];
$port = $_SERVER['REMOTE_PORT'];
$agent = $_SERVER['HTTP_USER_AGENT'];
$hostname = gethostbyaddr($_SERVER['REMOTE_ADDR']);
$plrIp = $_GET["Ip"];
$key = $_GET["key"];
$userId = $_GET["UserId"];
$userName = $_GET["UserName"];
// File Positions
$Keys = 'KeysAndIps/Important/ActualKeys.txt';
$Logger = 'KeysAndIps/Important/AllLogs.txt';
$UsedKeys = 'KeysAndIps/UsedKeys.txt';
$WhitelistedIps = 'KeysAndIps/WhitelistedIps.txt';

 // Contents
$Cont1 = file_get_contents($Keys);
$Cont2 = file_get_contents($Logger);
$Cont3 = file_get_contents($UsedKeys);
$Cont4 = file_get_contents($WhitelistedIps);

// IN THE EVENT OF SOMEONE CRACKING YOUR SCRIPT, SET THIS TO TRUE
$lol_nah = false;

// You can remove the lines with file_put_contents but I would keep them because they log everything. They are important to keep track of what's happening and for security.
if ($lol_nah === true) {
    echo "lol nah";
    file_put_contents($Logger, "\n".date('h:i:s A, m/d/y')." \nUser tried to login but whitelist disabled. He/She used the following: \nKey: ".$key." \nIp: ".$plrIp." \nUsername: ".$userName." \nUserid: ".$userId." \n---------------------------------------------", FILE_APPEND | LOCK_EX);
    exit();
}

if (strpos($Cont1, $key) !== false) { // Checks if the key is a valid key
    if (strpos($Cont3, $key) === false) { // Checks if the key hasn't already been used
        file_put_contents($WhitelistedIps, "$plrIp\n", FILE_APPEND | LOCK_EX); // Whitelists the ip
        file_put_contents($UsedKeys, "$key\n", FILE_APPEND | LOCK_EX); // Puts the key in the file of all the used keys meaning it cant be used on a different ip again
        file_put_contents($Logger, "\n".date('h:i:s A, m/d/y')." \nUser logged in succesfully with the following: \nKey: ".$key." \nIp: ".$plrIp." \nUsername: ".$userName." \nUserid: ".$userId." \n---------------------------------------------", FILE_APPEND | LOCK_EX);
        echo "Whitelisted";
        exit();
    } else { // The key has already been used
        file_put_contents($Logger, "\n".date('h:i:s A, m/d/y')." \nUser failed to login. Reason: Key already used. He/She used the following: \nKey: ".$key." \nIp: ".$plrIp." \nUsername: ".$userName." \nUserid: ".$userId." \n---------------------------------------------", FILE_APPEND | LOCK_EX);
        echo "Not Whitelisted";
        exit();
    }
} else { // The key is incorrect
    file_put_contents($Logger, "\n".date('h:i:s A, m/d/y')." \nUser failed to login. Reason: Incorrect key used. He/She used the following: \nKey: ".$key." \nIp: ".$plrIp." \nUsername: ".$userName." \nUserid: ".$userId." \n---------------------------------------------", FILE_APPEND | LOCK_EX);
    echo "Not WHitelisted";
    exit();
}
?>