1 <?php

     2 

     3 if (!is_callable('sodiumCompatAutoloader')) {

     4     /**

     5      * Sodium_Compat autoloader.

     6      *

     7      * @param string $class Class name to be autoloaded.

     8      *

     9      * @return bool         Stop autoloading?

    10      */

    11     function sodiumCompatAutoloader($class)

    12     {

    13         $namespace = 'ParagonIE_Sodium_';

    14         // Does the class use the namespace prefix?

    15         $len = strlen($namespace);

    16         if (strncmp($namespace, $class, $len) !== 0) {

    17             // no, move to the next registered autoloader

    18             return false;

    19         }

    20 

    21         // Get the relative class name

    22         $relative_class = substr($class, $len);

    23 

    24         // Replace the namespace prefix with the base directory, replace namespace

    25         // separators with directory separators in the relative class name, append

    26         // with .php

    27         $file = dirname(__FILE__) . '/src/' . str_replace('_', '/', $relative_class) . '.php';

    28         // if the file exists, require it

    29         if (file_exists($file)) {

    30             require_once $file;

    31             return true;

    32         }

    33         return false;

    34     }

    35 

    36     // Now that we have an autoloader, let's register it!

    37     spl_autoload_register('sodiumCompatAutoloader');

    38 }

    39 

    40 require_once dirname(__FILE__) . '/src/SodiumException.php';

    41 if (PHP_VERSION_ID >= 50300) {

    42     // Namespaces didn't exist before 5.3.0, so don't even try to use this

    43     // unless PHP >= 5.3.0

    44     require_once dirname(__FILE__) . '/lib/namespaced.php';

    45     require_once dirname(__FILE__) . '/lib/sodium_compat.php';

    46 }

    47 if (PHP_VERSION_ID < 70200 || !extension_loaded('sodium')) {

    48     require_once dirname(__FILE__) . '/lib/php72compat.php';

    49 }