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<?php /** * @category Example3 - Pay-Per-Download (single crypto currency in payment box) * @package GoUrl Cryptocurrency Payment API * copyright (c) 2014-2018 Delta Consultants * @crypto Supported Cryptocoins - Bitcoin, BitcoinCash, Litecoin, Dash, Dogecoin, Speedcoin, Reddcoin, Potcoin, Feathercoin, Vertcoin, Peercoin, MonetaryUnit, UniversalCurrency * @website https://gourl.io/bitcoin-payment-gateway-api.html#p2 * @live_demo https://gourl.io/lib/examples/pay-per-download.php */ require_once( "../cryptobox.class.php" ); /**** CONFIGURATION VARIABLES ****/ $filename = "my_file1.zip"; // filename for download $dir = "protected"; // name of your directory with your files; nobody should have direct web access to that directory $userID = ""; // optional; place your registered userID or md5(userID) here (user1, user7, uo43DC, etc). // or leave empty userID - system will autogenerate userID and save in cookies $userFormat = "COOKIE"; // save userID in cookies (or you can use IPADDRESS, SESSION) $orderID = md5($dir.$filename); // file name hash as order id $amountUSD = 0.2; // file download price (0.2 USD) $period = "24 HOURS"; // download link will be valid for 24 hours $def_language = "en"; // default Payment Box Language $public_key = "-your public key for coin box-"; // from gourl.io $private_key = "-your private key for coin box-";// from gourl.io // *** For convert Euro/GBP/etc. to USD/Bitcoin, use function convert_currency_live() with Google Finance // *** examples: convert_currency_live("EUR", "BTC", 22.37) - convert 22.37 Euro to Bitcoin // *** convert_currency_live("EUR", "USD", 22.37) - convert 22.37 Euro to USD // IMPORTANT: Please read description of options here - https://gourl.io/api-php.html#options /********************************/ /** PAYMENT BOX **/ $options = array( "public_key" => $public_key, // your public key from gourl.io "private_key" => $private_key, // your private key from gourl.io "webdev_key" => "", // optional, gourl affiliate key "orderID" => $orderID, // file name hash as order id "userID" => $userID, // unique identifier for every user "userFormat" => $userFormat, // save userID in COOKIE, IPADDRESS or SESSION "amount" => 0, // file price in coins OR in USD below "amountUSD" => $amountUSD, // we use file price in USD "period" => $period, // download link valid period "language" => $def_language // text on EN - english, FR - french, etc ); // Initialise Payment Class $box = new Cryptobox ($options); // coin name $coinName = $box->coin_name(); // Generate Download Link $download_link = "//$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]" . (strpos($_SERVER["REQUEST_URI"], "?")?"&":"?")."dd=1"; $download_link = "href='".htmlspecialchars($download_link, ENT_QUOTES, 'UTF-8')."'"; // Warning message if not paid if (!$box->is_paid()) $download_link = "onclick='alert(\"You need to send ".$coinName."s first !\")' href='#a'"; // Check if file exists on your server $file = rtrim($dir, "/ ")."/".$filename; if (!file_exists($file)) echo "<h1><center><font color=red>Warning: $file not exists</font></center></h1>"; // User Paid - Send file to user browser if ($box->is_paid() && isset($_GET["dd"]) && $_GET["dd"] == "1") { // Starting Download $size = filesize($file); header('Content-Description: File Transfer'); header('Content-Type: application/octet-stream'); header('Content-Disposition: attachment; filename='.basename($file)); header('Expires: 0'); header('Cache-Control: must-revalidate'); header('Pragma: public'); header('Content-Length: ' . $size); readfile($file); // Set Status - User Downloaded File if ($size) $box->set_status_processed(); die; } // Optional - Language selection list for payment box (html code) $languages_list = display_language_box($def_language); // ... // Also you need to use IPN function cryptobox_new_payment($paymentID = 0, $payment_details = array(), $box_status = "") // for send confirmation email, update database, update user membership, etc. // You need to modify file - cryptobox.newpayment.php, read more - https://gourl.io/api-php.html#ipn // ... ?> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html><head> <title><?php echo $coinName; ?> Pay-Per-Download Cryptocoin Payment Example</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta http-equiv='cache-control' content='no-cache'> <meta http-equiv='Expires' content='-1'> <meta name='robots' content='all'> <script src='../cryptobox.min.js' type='text/javascript'></script> </head> <body style='font-family:Arial,Helvetica,sans-serif;font-size:13px;color:#666;margin:0'> <div align='center'> <div style='width:100%;height:auto;line-height:50px;background-color:#f1f1f1;border-bottom:1px solid #ddd;color:#49abe9;font-size:18px;'> 3. GoUrl <b>Pay-Per-Download</b> Example (<?php echo $coinName; ?> payments). Use it on your website. <div style='float:right;'><a style='font-size:15px;color:#389ad8;margin-right:20px' href='<?php echo "//".$_SERVER["HTTP_HOST"].str_replace(".php", "-multi.php", $_SERVER["REQUEST_URI"]); ?>'>Multiple Crypto</a><a style='font-size:15px;color:#389ad8;margin-right:20px' href='https://gourl.io/<?php echo strtolower($coinName) ?>-payment-gateway-api.html#p2'>PHP Source</a><a style='font-size:15px;color:#389ad8;margin-right:20px' href='https://github.com/cryptoapi/Bitcoin-Payment-Gateway-ASP.NET/tree/master/GoUrl/Views/Examples/PayPerDownload.cshtml'>ASP.NET Source</a><a style='font-size:15px;color:#389ad8;margin-right:20px' href='https://wordpress.org/plugins/gourl-bitcoin-payment-gateway-paid-downloads-membership/'>Wordpress</a><a style='font-size:15px;color:#389ad8;margin-right:20px' href='https://gourl.io/<?php echo strtolower($coinName) ?>-payment-gateway-api.html'>Other Examples</a></div> </div> <h2>Example - Paid File Downloads</h2> <br><h1>File: <?php echo $filename; ?></h1> Price: ~<?php echo $amountUSD; ?> US$<br> <a <?php echo $download_link; ?>><img alt='Download File' border='0' src='https://gourl.io/images/zip.png'></a><br> <a <?php echo $download_link; ?>>Download File</a> <div style='margin:70px 0 5px 300px'>Language:   <?php echo $languages_list; ?></div> <?php echo $box->display_cryptobox(); ?> </div> <br><br><br><br><br><br> <div style='position:absolute;left:0;'><a target="_blank" href="http://validator.w3.org/check?uri=<?php echo "https://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]"; ?>"><img src="https://gourl.io/images/w3c.png" alt="Valid HTML 4.01 Transitional"></a></div> </body> </html>