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<?php |
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namespace BitWasp\Bitcoin\Crypto\EcAdapter; |
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use BitWasp\Bitcoin\Bitcoin; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Adapter\EcAdapterInterface; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Serializer\Key\PrivateKeySerializerInterface; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Serializer\Key\PublicKeySerializerInterface; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Serializer\Signature\CompactSignatureSerializerInterface; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Serializer\Signature\DerSignatureSerializerInterface; |
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class EcSerializer |
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{ |
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const PATH_PHPECC = 'BitWasp\Bitcoin\Crypto\EcAdapter\Impl\PhpEcc\\'; |
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const PATH_SECP256K1 = 'BitWasp\Bitcoin\Crypto\EcAdapter\Impl\Secp256k1\\'; |
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/** |
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* @var string[] |
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*/ |
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private static $serializerInterface = [ |
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PrivateKeySerializerInterface::class, |
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PublicKeySerializerInterface::class, |
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CompactSignatureSerializerInterface::class, |
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DerSignatureSerializerInterface::class, |
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]; |
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/** |
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* @var string[] |
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*/ |
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private static $serializerImpl = [ |
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'Serializer\Key\PrivateKeySerializer', |
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'Serializer\Key\PublicKeySerializer', |
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'Serializer\Signature\CompactSignatureSerializer', |
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'Serializer\Signature\DerSignatureSerializer' |
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]; |
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/** |
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* @var array |
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*/ |
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private static $map = []; |
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/** |
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* @var bool |
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*/ |
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private static $useCache = true; |
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/** |
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* @var array |
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*/ |
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private static $cache = []; |
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/** |
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* @param $interface |
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* @return mixed |
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*/ |
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public static function getImplRelPath($interface) |
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{ |
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if (0 === count(self::$map)) { |
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if (!in_array($interface, self::$serializerInterface, true)) { |
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throw new \InvalidArgumentException('Interface not known'); |
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} |
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$cInterface = count(self::$serializerInterface); |
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if ($cInterface !== count(self::$serializerImpl)) { |
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throw new \InvalidArgumentException('Invalid serializer interface map'); |
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} |
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for ($i = 0; $i < $cInterface; $i++) { |
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/** @var string $iface */ |
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$iface = self::$serializerInterface[$i]; |
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$ipath = self::$serializerImpl[$i]; |
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self::$map[$iface] = $ipath; |
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} |
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} |
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549 |
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return self::$map[$interface]; |
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} |
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/** |
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* @return array |
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*/ |
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public static function getImplPaths() |
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{ |
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return [ |
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'BitWasp\Bitcoin\Crypto\EcAdapter\Impl\PhpEcc\Adapter\EcAdapter' => 'BitWasp\Bitcoin\Crypto\EcAdapter\Impl\PhpEcc\\', |
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'BitWasp\Bitcoin\Crypto\EcAdapter\Impl\Secp256k1\Adapter\EcAdapter' => 'BitWasp\Bitcoin\Crypto\EcAdapter\Impl\Secp256k1\\' |
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]; |
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} |
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/** |
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* @param EcAdapterInterface $adapter |
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* @return mixed |
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*/ |
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public static function getAdapterImplPath(EcAdapterInterface $adapter) |
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{ |
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$paths = static::getImplPaths(); |
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$class = get_class($adapter); |
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if (!isset($paths[$class])) { |
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throw new \RuntimeException('Unknown EcAdapter'); |
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} |
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return $paths[$class]; |
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} |
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/** |
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* @param $interface |
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* @param bool|true $useCache |
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* @param EcAdapterInterface $adapter |
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* @return mixed |
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*/ |
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public static function getSerializer($interface, $useCache = true, EcAdapterInterface $adapter = null) |
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{ |
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$adapter = $adapter ?: Bitcoin::getEcAdapter(); |
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if (isset(self::$cache[$interface])) { |
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return self::$cache[$interface]; |
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} |
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$classPath = self::getAdapterImplPath($adapter) . self::getImplRelPath($interface); |
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$class = new $classPath($adapter); |
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if ($useCache && self::$useCache) { |
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self::$cache[$interface] = $class; |
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} |
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return $class; |
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} |
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/** |
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* Disables caching of serializers |
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*/ |
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public static function disableCache() |
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{ |
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self::$useCache = false; |
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} |
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} |
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