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1 <?php 2 3 if (PHP_VERSION_ID < 70000) { 4 if (!is_callable('sodiumCompatAutoloader')) { 5 /** 6 * Sodium_Compat autoloader. 7 * 8 * @param string $class Class name to be autoloaded. 9 * 10 * @return bool Stop autoloading? 11 */ 12 function sodiumCompatAutoloader($class) 13 { 14 $namespace = 'ParagonIE_Sodium_'; 15 // Does the class use the namespace prefix? 16 $len = strlen($namespace); 17 if (strncmp($namespace, $class, $len) !== 0) { 18 // no, move to the next registered autoloader 19 return false; 20 } 21 22 // Get the relative class name 23 $relative_class = substr($class, $len); 24 25 // Replace the namespace prefix with the base directory, replace namespace 26 // separators with directory separators in the relative class name, append 27 // with .php 28 $file = dirname(__FILE__) . '/src/' . str_replace('_', '/', $relative_class) . '.php'; 29 // if the file exists, require it 30 if (file_exists($file)) { 31 require_once $file; 32 return true; 33 } 34 return false; 35 } 36 37 // Now that we have an autoloader, let's register it! 38 spl_autoload_register('sodiumCompatAutoloader'); 39 } 40 } else { 41 require_once dirname(__FILE__) . '/autoload-php7.php'; 42 } 43 44 /* Explicitly, always load the Compat class: */ 45 require_once dirname(__FILE__) . '/src/Compat.php'; 46 47 if (!class_exists('SodiumException', false)) { 48 require_once dirname(__FILE__) . '/src/SodiumException.php'; 49 } 50 if (PHP_VERSION_ID >= 50300) { 51 // Namespaces didn't exist before 5.3.0, so don't even try to use this 52 // unless PHP >= 5.3.0 53 require_once dirname(__FILE__) . '/lib/namespaced.php'; 54 require_once dirname(__FILE__) . '/lib/sodium_compat.php'; 55 } else { 56 require_once dirname(__FILE__) . '/src/PHP52/SplFixedArray.php'; 57 } 58 if (PHP_VERSION_ID < 70200 || !extension_loaded('sodium')) { 59 if (PHP_VERSION_ID >= 50300 && !defined('SODIUM_CRYPTO_SCALARMULT_BYTES')) { 60 require_once dirname(__FILE__) . '/lib/php72compat_const.php'; 61 } 62 if (PHP_VERSION_ID >= 70000) { 63 assert(class_exists('ParagonIE_Sodium_Compat'), 'Possible filesystem/autoloader bug?'); 64 } else { 65 assert(class_exists('ParagonIE_Sodium_Compat')); 66 } 67 require_once(dirname(__FILE__) . '/lib/php72compat.php'); 68 } elseif (!function_exists('sodium_crypto_stream_xchacha20_xor')) { 69 // Older versions of {PHP, ext/sodium} will not define these 70 require_once(dirname(__FILE__) . '/lib/php72compat.php'); 71 } 72 require_once(dirname(__FILE__) . '/lib/ristretto255.php');
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