include 'instagram.class.php';

$instaUsername = "xxxxx";
$instaPassword = "xxxxx";

$folderLocation = "upload";

$attempts = 0;
$loginSucces = false;
$postImageSucces = false;
$maxAttempts = 25;

// --------------------------------------------------------------------------------------------------------
$captionOptions = ['caption 1', 'caption 2', 'caption 3', 'caption 4', 'caption 5'];
$caption = $captionOptions[array_rand($captionOptions)];
// --------------------------------------------------------------------------------------------------------

$files = glob($folderLocation.'/*.{jpg,png,gif,jpeg}', GLOB_BRACE);
array_multisort(array_map('filemtime', $files), SORT_NUMERIC, SORT_DESC, $files);

if(empty($files)) {
    exit("No pictures found");
}

$fullFileLocation = $files[0];
$fileNameWithExtension = explode('/', $fullFileLocation)[1];
$fileName = explode('.', $fileNameWithExtension)[0];
$fileExtension = explode('.', $fileNameWithExtension)[1];

if(file_exists("$folderLocation/{$fileName}.txt")) {
    $caption = file_get_contents("$folderLocation/{$fileName}.txt");
}


// --------------------------------------------------------------------------------------------------------
// login & upload
$instaGram = new Instagram();
do {
    if($attempts >= 15) {
        exit("15 times... error? ??");

    }

    if($loginSucces == false) {
        $response = $instaGram->Login($instaUsername, $instaPassword);
        if(strpos($response[1], "Sorry") || empty($response[1])) {
            // proxy fails, get a new one
            $instaGram->delProxy();
        } else {
            $loginSucces = true;
            sleep(5);
        }
    }


    if($loginSucces == true) {
        if($instaGram->Post($fullFileLocation, $caption)) {
            $postImageSucces = true;
        }
    }

    $attempts++;
} while($postImageSucces == false);
// --------------------------------------------------------------------------------------------------------

// logn/upload succes


// --------------------------------------------------------------------------------------------------------
// rename files

rename("{$fullFileLocation}", "./gebruikt/{$fileNameWithExtension}");

// caption txt bestand
if(file_exists("$folderLocation/{$fileName}.txt")) {
    rename("{$folderLocation}/{$fileName}.txt", "./gebruikt/{$fileName}.txt");
}
// --------------------------------------------------------------------------------------------------------

<?php

Class Instagram
{
public $username;
public $password;
private $guid;
private $userAgent = 'Instagram 6.21.2 Android (19/4.4.2; 480dpi; 1152x1920; Meizu; MX4; mx4; mt6595; nl_BE)';
private $instaSignature ='xxxxxxxxxxxxx';
private $instagramUrl = 'https://i.instagram.com/api/v1/';

function __construct()  {
    if (!extension_loaded('curl')) trigger_error('php_curl extension is not loaded', E_USER_ERROR);
}

function __destruct()   {

}

private function writeProxy($ip) {
    file_put_contents("./upload/proxy.txt", $ip);
}

public function delProxy() {
    file_put_contents("./upload/proxy.txt", "");
}

private function getProxyFromFile() {
    return file_get_contents("./upload/proxy.txt");
}



private function getProxy() {
    $proxy = file_get_contents("./upload/proxy.txt");
    if(empty($proxy)) {
        $data = json_decode(file_get_contents('http://gimmeproxy.com/api/getProxy?country=NL&supportsHttps=true&maxCheckPeriod=15000&minSpeed=250'));
        $proxy = trim($data->ipPort);
        $this->writeProxy($proxy);
    } else {
        $proxy = $proxy;
    }

    return $proxy;
}

private function Request($url, $post, $post_data, $cookies) {

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $this->instagramUrl . $url);
    curl_setopt($ch, CURLOPT_PROXY, $this->getProxy());
    curl_setopt($ch, CURLOPT_USERAGENT, $this->userAgent);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
        //curl_setopt($ch, CURLOPT_HEADER, 1);
    if($post) {
        curl_setopt($ch, CURLOPT_POST, 1);
        if ((version_compare(PHP_VERSION, '5.5') >= 0)) {
            curl_setopt($ch, CURLOPT_SAFE_UPLOAD, 1);
        }
        curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
    }

    if($cookies) {
        curl_setopt($ch, CURLOPT_COOKIEFILE,   dirname(__FILE__). '/upload/cookies.txt');
    } else {
        curl_setopt($ch, CURLOPT_COOKIEJAR,  dirname(__FILE__). '/upload/cookies.txt');
    }
    $response = curl_exec($ch);
    $http = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);
    return array($http, $response);
}

private function GenerateGuid() {
    return sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
            mt_rand(0, 65535),
            mt_rand(0, 65535),
            mt_rand(0, 65535),
            mt_rand(16384, 20479),
            mt_rand(32768, 49151),
            mt_rand(0, 65535),
            mt_rand(0, 65535),
            mt_rand(0, 65535));
}

private function GenerateSignature($data) {
    return hash_hmac('sha256', $data, $this->instaSignature);
}


private function GetPostData($path)  {
    $post_data = array('device_timestamp' => time());
        if ((version_compare(PHP_VERSION, '5.5') >= 0)) {
                $post_data['photo'] = new CURLFile(realpath($path));
        } else {
                $post_data['photo'] = "@".realpath($path);
        }
    return $post_data;
}

public function Login($username, $password) {
    $this->username = $username;
    $this->password = $password;
    $this->guid = $this->GenerateGuid();
    $device_id = "android-" . $this->guid;
    $data = '{"device_id":"'.$device_id.'","guid":"'.$this->guid.'","username":"'. $this->username.'","password":"'.$this->password.'","Content-Type":"application/x-www-form-urlencoded; charset=UTF-8"}';
    $sig = $this->GenerateSignature($data);
    $data = 'signed_body='.$sig.'.'.urlencode($data).'&ig_sig_key_version=6';
    return $this->Request('accounts/login/', true, $data, false);
}

private function PostImage($photo) {
    $data = $this->GetPostData($photo);
    return $this->Request('media/upload/', true, $data, true);
}

private function PostCaption($caption, $media_id) {
    $caption = preg_replace("/r|n/", "", $caption);
    $device_id = "android-".$this->guid;
    $data = '{"device_id":"'.$device_id.'","guid":"'. $this->guid .'","media_id":"'.$media_id.'","caption":"'.trim($caption).'","device_timestamp":"'.time().'","source_type":"5","filter_type":"0","extra":"{}","Content-Type":"application/x-www-form-urlencoded; charset=UTF-8"}';
    $sig = $this->GenerateSignature($data);
    $new_data = 'signed_body='.$sig.'.'.urlencode($data).'&ig_sig_key_version=6';
    return $this->Request('media/configure/', true, $new_data, true);
}



    public function Post($photo, $caption){
        $response = $this->PostImage($photo);
         // print_r($response);
        if(empty($response[1])) {
            return false;
        }

        $obj = @json_decode($response[1], true);
        $status = $obj['status'];
        if($status == 'ok') {

            // Remove and line breaks from the caption
            $media_id = $obj['media_id'];
            $response = $this->PostCaption($caption, $media_id);
            return true;
        }

        return false;
    }
}
?>