76 lines
2.8 KiB
PHP
76 lines
2.8 KiB
PHP
<?php
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if (PHP_VERSION_ID < 70000) {
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if (!is_callable('sodiumCompatAutoloader')) {
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/**
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* Sodium_Compat autoloader.
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*
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* @param string $class Class name to be autoloaded.
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*
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* @return bool Stop autoloading?
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*/
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function sodiumCompatAutoloader($class)
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{
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$namespace = 'ParagonIE_Sodium_';
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// Does the class use the namespace prefix?
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$len = strlen($namespace);
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if (strncmp($namespace, $class, $len) !== 0) {
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// no, move to the next registered autoloader
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return false;
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}
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// Get the relative class name
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$relative_class = substr($class, $len);
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// Replace the namespace prefix with the base directory, replace namespace
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// separators with directory separators in the relative class name, append
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// with .php
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$file = dirname(__FILE__) . '/src/' . str_replace('_', '/', $relative_class) . '.php';
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// if the file exists, require it
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if (file_exists($file)) {
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require_once $file;
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return true;
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}
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return false;
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}
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// Now that we have an autoloader, let's register it!
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spl_autoload_register('sodiumCompatAutoloader');
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}
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} else {
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require_once dirname(__FILE__) . '/autoload-php7.php';
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}
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/* Explicitly, always load the Compat class: */
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if (!class_exists('ParagonIE_Sodium_Compat', false)) {
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require_once dirname(__FILE__) . '/src/Compat.php';
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}
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if (!class_exists('SodiumException', false)) {
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require_once dirname(__FILE__) . '/src/SodiumException.php';
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}
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if (PHP_VERSION_ID >= 50300) {
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// Namespaces didn't exist before 5.3.0, so don't even try to use this
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// unless PHP >= 5.3.0
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require_once dirname(__FILE__) . '/lib/namespaced.php';
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require_once dirname(__FILE__) . '/lib/sodium_compat.php';
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} else {
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require_once dirname(__FILE__) . '/src/PHP52/SplFixedArray.php';
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}
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if (PHP_VERSION_ID < 70200 || !extension_loaded('sodium')) {
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if (PHP_VERSION_ID >= 50300 && !defined('SODIUM_CRYPTO_SCALARMULT_BYTES')) {
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require_once dirname(__FILE__) . '/lib/php72compat_const.php';
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}
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if (PHP_VERSION_ID >= 70000) {
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assert(class_exists('ParagonIE_Sodium_Compat'), 'Possible filesystem/autoloader bug?');
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} else {
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assert(class_exists('ParagonIE_Sodium_Compat'));
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}
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require_once(dirname(__FILE__) . '/lib/php72compat.php');
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} elseif (!function_exists('sodium_crypto_stream_xchacha20_xor')) {
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// Older versions of {PHP, ext/sodium} will not define these
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require_once(dirname(__FILE__) . '/lib/php72compat.php');
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}
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require_once(dirname(__FILE__) . '/lib/stream-xchacha20.php');
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require_once(dirname(__FILE__) . '/lib/ristretto255.php');
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