Secure Expired MP3 File


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Secure Expired MP3 File can be used for hiding real mp3 link inside html source using base64_encode, mcrypt_encrypt, base64_decode, mcrypt_decrypt and md5. MP3 link will be expired in few seconds then it will return No Access Page to protect MP3 files to hot linked.

I was working on Secured & Expired MP3 Link in HTML5 MP3 Player. Hope you already read previous article “Amazon S3 Expiring Link”

These functions are also useful when you need to secure & expire media links …

Remote Secure Token
Secure Token Plugin with PHP
– JavaScript Encryption Library

Secure Expired MP3

Demo: http://demo.svnlabs.com/securemp3/player.php

PayPal auto redirect credit card user to website after payment


Hits: 4299  

I have a problem on my Pay Per Video Website (PPV), Guests normally watch preview of videos for few seconds then PayPal Screen appear to watch full version of video content.

payperview-app-payment-screen

Pay Per Plugin for HTML5 Media – Pay Per Plugin for HTML5 Media Plugin is embedded stand-alone, e-commerce-powered JavaScript and iFramed widget for Audio/Video. – See more at: http://html5plus.svnlabs.com/shop/pay-per-plugin-for-html5-media/#.UsuLItIW2So

I am using paypal form …

<form action=”<?php echo $paypal_link; ?>” target=”_top” method=”post” name=”payPalForm”>
<input type=”hidden” name=”business” value=”<?php echo $business_email;?>”>
<input type=”hidden” name=”cmd” value=”_xclick”>
<input type=”hidden” name=”item_name” value=”<?php echo $item_name; ?>”>
<input type=”hidden” name=”item_number” value=”<?php echo $item_number; ?>”>
<input type=”hidden” name=”amount” value=”<?php echo sprintf(“%01.2f”, $amount); ?>”>
<input type=”hidden” name=”no_shipping” value=”1″>
<input type=”hidden” name=”currency_code” value=”<?php echo $currency_code; ?>”>
<input type=”hidden” name=”handling” value=”0″>
<input type=”hidden” name=”rm” value=”2″ >
<input type=”hidden” name=”cancel_return” value=”<?php echo $siteurl; ?>cancel.php”>
<input type=”hidden” name=”return” value=”<?php echo $siteurl; ?>success.php”>
<input type=”image” src=”https://www.sandbox.paypal.com/en_US/i/btn/btn_buynowCC_LG.gif” border=”0″ name=”submit” alt=”PayPal – The safer, easier way to pay online!”>
<img alt=”” border=”0″ src=”https://www.sandbox.paypal.com/en_US/i/scr/pixel.gif” width=”1″ height=”1″>
</form>

 

I have enabled auto return ON and auto return URL in paypal settings already ….

Auto Return URL

When customers pay using paypal they easily redirected to PPV website … but if someone (guest) pay from credit card .. they have to click on link to redirect back to website …. 🙁

PayPal Auto Redirect to Website

Solution:

You can find more info here Merchant Services from PayPal – Payment Solutions for Your Business

PayPal Standard Payments is designed in such a way if a customer pays as guest (they don’t have a PayPal Account), after they complete the checkout process, PayPal will offer to open PayPal Account or click on the link to return them to PPV website. Customers “must” click on the link in order to return to your web site.

You can use either PayPal Payments Pro or Advanced, if you want the customer to remain on your web site for the checkout process. Advanced PayPal method enable customer to remains on PPV website. The PayPal process work thru a window or frame on your website.

Merchant Services from PayPal - Payment Solutions for Your Business

PayPal Pro and Advanced are available in additional monthly costs as well as the transaction processing fees.
Pro is $30 a month, Advanced is $5 a month. 🙂

Red5 CMS


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Hope you already read our article for Media Streaming CMS.

Using Red5 CMS you can manage your Red5, Wowza, RTMP streams and publish using open source player. You can track your media content and embed on other websites.

Red5 Admin Login
red5-admin-login

Red5 CMS Home
red5-cms-home

Red5 CMS Categories
red5-cms-category

Red5 CMS Add Categories
red5-cms-category-add

Red5 Server Infomation
red5-server-info

Red5 Streams
red5-streams

Red5 CMS Edit Streams
red5-streams-edit

Red5 CMS Stream Offline
stream-offline

Wowza Live Cam Secure Expired Token


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Wowza Live Cam Secure Expired Token
Wowza Live Cam Secure Expired Token

wowza-live-cam-secure-expired-token.php
// Encrypt original stream URL http://wowza-server:port/stream/playlist.m3u8
$base64ized = encryptDecrypt($secret_key, $streamURL, 0);

// Decrypt stream URL
$streamURL = encryptDecrypt($secret_key, $base64ized, 1);

stream.php

// Expire stream URL after time interval & check secure token
if (($current – $timestamp) <= $expired && ($checkhash == $hash)) { include("m3u8.php"); } m3u8.php

header(“content-type: application/vnd.apple.mpegurl”);
echo file_get_contents(“http://wowza-server:port/stream/playlist.m3u8”);

Best PHP Encryption Decryption


Hits: 5955  

I was working on Secured & Expired MP3 Link in HTML5 MP3 Player. Hope you already read previous article “Amazon S3 Expiring Link”

You can use below code for hiding real mp3 link inside html source using base64_encode, mcrypt_encrypt, base64_decode, mcrypt_decrypt and md5.

This function is also useful when you need to secure & expire media links …

Remote Secure Token
Secure Token Plugin with PHP
JavaScript Encryption Library

<?php

function encryptDecrypt($key, $string, $decrypt)
{
    if($decrypt)
    {
        
        $string = str_replace("|", "/", $string);
        
        $decrypted = rtrim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, md5($key), base64_decode($string), MCRYPT_MODE_CBC, md5(md5($key))), "12");
        return $decrypted;
    }else{
        $encrypted = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, md5($key), $string, MCRYPT_MODE_CBC, md5(md5($key))));        
        
        $stripping = true;
        while ($stripping){
         if(substr($encrypted, -1) == "="){
         $encrypted = substr($encrypted, 0, strlen($encrypted)-1);
        } else {
         $stripping = false;
        }
        }
        return str_replace("/", "|", $encrypted);
    }
}


$echo = encryptDecrypt("123", "http://www.svnlabs.com/mp3/svnlabs1.mp3", 0);
echo $echo."<br>";
echo encryptDecrypt("123", $echo, 1);

?>

 

Output:
yTWxdWnzTqh2OHxrfVX5Xxa+K8vGso9|upjRs+oQJLTDmKNyzVfLCvEcvd3ube|Mk+bxxMpijLjAgusr0EDawQ

Reference: http://commons.oreilly.com/wiki/index.php/PHP_Cookbook/Encryption_and_Security

Amazon S3 Expiring Link


Hits: 9922  

I was working on Amazon S3 Cloud HTML5 MP3 Player for S3 Bucket security and Expiring Media links.

Amazon S3 Cloud HTML5 MP3 Player
Amazon S3 Cloud HTML5 MP3 Player
<?php

  if(!function_exists('el_crypto_hmacSHA1')){
      /**
      * Calculate the HMAC SHA1 hash of a string.
      *
      * @param string $key The key to hash against
      * @param string $data The data to hash
      * @param int $blocksize Optional blocksize
      * @return string HMAC SHA1
      */
      function el_crypto_hmacSHA1($key,$data,$blocksize=64){
          if(strlen($key)>$blocksize)$key=pack('H*',sha1($key));
          $key=str_pad($key,$blocksize,chr(0x00));
          $ipad=str_repeat(chr(0x36),$blocksize);
          $opad=str_repeat(chr(0x5c),$blocksize);
          $hmac=pack('H*',sha1(
              ($key^$opad).pack('H*',sha1(
                  ($key^$ipad).$data
              ))
          ));
          returnbase64_encode($hmac);
      }
  }

  if(!function_exists('el_s3_getTemporaryLink')){
      /**
      * Create temporary URLs to your protected Amazon S3 files.
      *
      * @param string $accessKey Your Amazon S3 access key
      * @param string $secretKey Your Amazon S3 secret key
      * @param string $bucket The bucket (bucket.s3.amazonaws.com)
      * @param string $path The target file path
      * @param int $expires In minutes
      * @return string Temporary Amazon S3 URL
      * @see http://awsdocs.s3.amazonaws.com/S3/20060301/s3-dg-20060301.pdf
      */
      function el_s3_getTemporaryLink($accessKey,$secretKey,$bucket,$path,$expires=5){
          // Calculate expiry time
          $expires=time()+intval(floatval($expires)*60);
          // Fix the path; encode and sanitize
          $path=str_replace('%2F','/',rawurlencode($path=ltrim($path,'/')));
          // Path for signature starts with the bucket
          $signpath='/'.$bucket.'/'.$path;
          // S3 friendly string to sign
          $signsz=implode("\n",$pieces=array('GET',null,null,$expires,$signpath));
          // Calculate the hash
          $signature= el_crypto_hmacSHA1($secretKey,$signsz);
          // Glue the URL ...
          $url=sprintf('http://%s.s3.amazonaws.com/%s',$bucket,$path);
          // ... to the query string ...
          $qs=http_build_query($pieces=array(
              'AWSAccessKeyId'=>$accessKey,
              'Expires'=>$expires,
              'Signature'=>$signature,
          ));a
          // ... and return the URL!
          return$url.'?'.$qs;
      }
  }

  ?>

Uses:

$ExpiringLink = el_s3_getTemporaryLink(‘AWS-KEY’, ‘AWS-SECRET-KEY’, ‘BUCKET’, ‘FILENAME’, ‘EXPIRING-TIME’);

Demo Amazon S3 Cloud HTML5 MP3 Player

Reference: http://snipplr.com/view/46753.57507/

PHP Run Background Process using Exec


Hits: 9054  

If you need to start process in background and get its PID to manage it later using PHP.

<?php

function runInBackground($command,$log,$priority=0)
{
if($priority)
   $PID=shell_exec("nohup nice -n $priority $command > $log 2>&1 & echo $!");
else
   $PID=shell_exec("nohup $command > $log 2>&1 & echo $!");
return($PID);
}

?>
PHP Process
PHP Process

echo $! will return process ID
# Command & echo $!

 

Check if process is running

<?php

function isProcessRunning($PID)
{

if($PID==0)return false;
if($PID=="")return false;

exec("ps -p $PID 2>&1",$state);
return(count($state)>=2);

}

?>

 

Display Process Logs

<?php

function displayProcessLog($logfile)
{

exec('cat $logfile 2>&1',$log);
return implode("\r\n",$log);

}

?>

 

Kill Process

<?php

function killProcess($PID)
{
 exec('kill '.$PID.' 2>&1',$status);
 return implode("\r\n",$status);
}

?>

 

Save Process ID to file

#!/bin/bash
Command &
echo $! >/path/to/pid.file