<?php


$response = array();
if(isset($_POST['file_url'])){
     
    $file_name = $_POST['file_url'];       
    $extension = pathinfo($file_name, PATHINFO_EXTENSION);
    $imageName = generateRandomString();
    $newFileName = $imageName . '-' . time() . '.' . $extension;

    $file_ext = $extension;
    $file_ext = strtolower($file_ext);
    
    //Prevent upload of certain files that can cause security issues
    if($file_ext=="php" || $file_ext=="html"){
        $response['errorcode'] = "201";
        $response['errormessage'] = "Invalid extenstion";
    }
    else
    {
        $file_error = 0;
 

        if($file_ext == "png" || $file_ext == "jpg" ||$file_ext == "jpeg" ||$file_ext == "gif" ||$file_ext == "bmp"){
            $file_dir = "uploads/img/";
        }
        elseif ($file_ext == "mp4" ||$file_ext == "avi" ||$file_ext == "mkv" ||$file_ext == "mpeg" ||$file_ext == "mov") {
            $file_dir = "uploads/vid/";
        }
        elseif ($file_ext == "mp3" ||$file_ext == "flac") {
            $file_dir = "uploads/aud/";
        }
        $file_destination = $file_dir . $newFileName;
        
        
        $data = file_get_contents($file_name);

        if(file_put_contents($file_destination, $data))
        {
            $newFileURL = url().$file_destination;
            $response['errorcode'] = "200";
            $response['errormessage'] = "Uploaded";
            $response['url'] = $newFileURL;
        }                                                 
         
    }
    echo json_encode($response);
}


if(isset($_POST['file'])){
     
    $file_name = $_POST['file'];       
    $extension = pathinfo($file_name, PATHINFO_EXTENSION);
    $imageName = generateRandomString();
    $newFileName = $imageName . '-' . time() . '.' . $extension;

    $file_ext = $extension;
    $file_ext = strtolower($file_ext);
    
    //Prevent upload of certain files that can cause security issues
    if($file_ext=="php" || $file_ext=="html"){
        $response['errorcode'] = "201";
        $response['errormessage'] = "Invalid extenstion";
    }
    else
    {
        $file_error = 0;
 

        if($file_ext == "png" || $file_ext == "jpg" ||$file_ext == "jpeg" ||$file_ext == "gif" ||$file_ext == "bmp"){
            $file_dir = "uploads/img/";
        }
        elseif ($file_ext == "mp4" ||$file_ext == "avi" ||$file_ext == "mkv" ||$file_ext == "mpeg" ||$file_ext == "mov") {
            $file_dir = "uploads/vid/";
        }
        elseif ($file_ext == "mp3" ||$file_ext == "flac") {
            $file_dir = "uploads/aud/";
        }
        $file_destination = $file_dir . $newFileName;
        
        
        $data = file_get_contents($file_name);

        if(file_put_contents($file_destination, $data))
        {
            $newFileURL = url().$file_destination;
            $response['errorcode'] = "200";
            $response['errormessage'] = "Uploaded";
            $response['url'] = $newFileURL;
        }                                                 
         
    }
    echo json_encode($response);
}



function generateRandomString($length = 30) {
    $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
    $charactersLength = strlen($characters);
    $randomString = '';
    for ($i = 0; $i < $length; $i++) {
        $randomString .= $characters[random_int(0, $charactersLength - 1)];
    }
    return $randomString;
}

function url(){
    if(isset($_SERVER['HTTPS'])){
        $protocol = ($_SERVER['HTTPS'] && $_SERVER['HTTPS'] != "off") ? "https" : "http";
    }
    else{
        $protocol = 'http';
    }

    $currentDir =  basename(__DIR__);
    return $protocol . "://" . $_SERVER['HTTP_HOST']."/".$currentDir."/";
}
?>