/**
* @depends testFromBinary
*/
public function testFromBinaryWithOffset()
{
$originalObject1 = new UTF8String('Hello ');
$originalObject2 = new UTF8String(' World');
$binaryData = $originalObject1->getBinary();
$binaryData .= $originalObject2->getBinary();
$offset = 0;
$parsedObject = UTF8String::fromBinary($binaryData, $offset);
$this->assertEquals($originalObject1, $parsedObject);
$this->assertEquals(8, $offset);
$parsedObject = UTF8String::fromBinary($binaryData, $offset);
$this->assertEquals($originalObject2, $parsedObject);
$this->assertEquals(16, $offset);
}
public static function createObject($tagClass, $tagName, $isConstructed, $value, $lengthForm, $children = [])
{
$identifier = self::createIdentifier($tagClass, $tagName, $isConstructed);
if ($identifier->tagClass === Identifier::CLASS_UNIVERSAL && $identifier->isConstructed === false) {
//для простых элементов вызываем конструктор
switch ($identifier->getTagNumber()) {
case Identifier::BITSTRING:
$value = Universal\BitString::encodeValue($value);
break;
case Identifier::BOOLEAN:
$value = Universal\Boolean::encodeValue($value);
break;
case Identifier::ENUMERATED:
$value = Universal\Enumerated::encodeValue($value);
break;
case Identifier::INTEGER:
$value = Universal\Integer::encodeValue($value);
break;
case Identifier::NULL:
$value = Universal\NullObject::encodeValue($value);
break;
case Identifier::OBJECT_IDENTIFIER:
$value = Universal\ObjectIdentifier::encodeValue($value);
break;
case Identifier::OCTETSTRING:
$value = Universal\OctetString::encodeValue($value);
break;
case Identifier::UTC_TIME:
$value = Universal\UTCTime::encodeValue($value);
break;
case Identifier::GENERALIZED_TIME:
$value = Universal\GeneralizedTime::encodeValue($value);
break;
case Identifier::IA5_STRING:
$value = Universal\IA5String::encodeValue($value);
break;
case Identifier::PRINTABLE_STRING:
$value = Universal\PrintableString::encodeValue($value);
break;
case Identifier::NUMERIC_STRING:
$value = Universal\NumericString::encodeValue($value);
break;
case Identifier::UTF8_STRING:
$value = Universal\UTF8String::encodeValue($value);
break;
case Identifier::UNIVERSAL_STRING:
$value = Universal\UniversalString::encodeValue($value);
break;
case Identifier::CHARACTER_STRING:
$value = Universal\CharacterString::encodeValue($value);
break;
case Identifier::GENERAL_STRING:
$value = Universal\GeneralString::encodeValue($value);
break;
case Identifier::VISIBLE_STRING:
$value = Universal\VisibleString::encodeValue($value);
break;
case Identifier::GRAPHIC_STRING:
$value = Universal\GraphicString::encodeValue($value);
break;
case Identifier::BMP_STRING:
$value = Universal\BMPString::encodeValue($value);
break;
case Identifier::T61_STRING:
$value = Universal\T61String::encodeValue($value);
break;
case Identifier::OBJECT_DESCRIPTOR:
$value = Universal\ObjectDescriptor::encodeValue($value);
break;
default:
// At this point the identifier may be >1 byte.
if ($identifier->isConstructed) {
$value = UnknownConstructedObject::encodeValue($value);
} else {
$value = UnknownObject::encodeValue($value);
}
}
}
if ($children) {
$contentOctets = '';
foreach ($children as $child) {
$contentOctets .= $child->getBinary();
}
} else {
$contentOctets = $value;
}
$contentLength = self::createContentLength($contentOctets, $lengthForm);
$content = new Content($contentOctets);
if ($identifier->tagClass === Identifier::CLASS_UNIVERSAL) {
//для простых элементов вызываем конструктор
switch ($identifier->getTagNumber()) {
case Identifier::BITSTRING:
return new Universal\BitString($identifier, $contentLength, $content, $children);
case Identifier::BOOLEAN:
return new Universal\Boolean($identifier, $contentLength, $content, $children);
case Identifier::ENUMERATED:
return new Universal\Enumerated($identifier, $contentLength, $content, $children);
case Identifier::INTEGER:
return new Universal\Integer($identifier, $contentLength, $content, $children);
case Identifier::NULL:
return new Universal\NullObject($identifier, $contentLength, $content, $children);
case Identifier::OBJECT_IDENTIFIER:
return new Universal\ObjectIdentifier($identifier, $contentLength, $content, $children);
case Identifier::RELATIVE_OID:
return new Universal\RelativeObjectIdentifier($identifier, $contentLength, $content, $children);
case Identifier::OCTETSTRING:
return new Universal\OctetString($identifier, $contentLength, $content, $children);
case Identifier::SEQUENCE:
return new Universal\Sequence($identifier, $contentLength, $content, $children);
case Identifier::SET:
return new Universal\Set($identifier, $contentLength, $content, $children);
case Identifier::UTC_TIME:
return new Universal\UTCTime($identifier, $contentLength, $content, $children);
case Identifier::GENERALIZED_TIME:
return new Universal\GeneralizedTime($identifier, $contentLength, $content, $children);
case Identifier::IA5_STRING:
return new Universal\IA5String($identifier, $contentLength, $content, $children);
case Identifier::PRINTABLE_STRING:
return new Universal\PrintableString($identifier, $contentLength, $content, $children);
case Identifier::NUMERIC_STRING:
return new Universal\NumericString($identifier, $contentLength, $content, $children);
case Identifier::UTF8_STRING:
return new Universal\UTF8String($identifier, $contentLength, $content, $children);
case Identifier::UNIVERSAL_STRING:
return new Universal\UniversalString($identifier, $contentLength, $content, $children);
case Identifier::CHARACTER_STRING:
return new Universal\CharacterString($identifier, $contentLength, $content, $children);
case Identifier::GENERAL_STRING:
return new Universal\GeneralString($identifier, $contentLength, $content, $children);
case Identifier::VISIBLE_STRING:
return new Universal\VisibleString($identifier, $contentLength, $content, $children);
case Identifier::GRAPHIC_STRING:
return new Universal\GraphicString($identifier, $contentLength, $content, $children);
case Identifier::BMP_STRING:
return new Universal\BMPString($identifier, $contentLength, $content, $children);
case Identifier::T61_STRING:
return new Universal\T61String($identifier, $contentLength, $content, $children);
case Identifier::OBJECT_DESCRIPTOR:
return new Universal\ObjectDescriptor($identifier, $contentLength, $content, $children);
default:
// At this point the identifier may be >1 byte.
if ($identifier->isConstructed) {
return new UnknownConstructedObject($identifier, $contentLength, $content, $children);
} else {
return new UnknownObject($identifier, $contentLength, $content, $children);
}
}
}
if ($identifier->tagClass === Identifier::CLASS_CONTEXT_SPECIFIC) {
if ($identifier->isConstructed) {
return new ExplicitlyTaggedObject($identifier, $contentLength, $content, $children);
} else {
return new ImplicitlyTaggedObject($identifier, $contentLength, $content, $children);
}
}
}
/**
* @param string $binaryData
* @param int $offsetIndex
*
* @throws ParserException
*
* @return \FG\ASN1\Object
*/
public static function fromBinary(&$binaryData, &$offsetIndex = 0)
{
if (strlen($binaryData) <= $offsetIndex) {
throw new ParserException('Can not parse binary from data: Offset index larger than input size', $offsetIndex);
}
$identifierOctet = ord($binaryData[$offsetIndex]);
if (Identifier::isContextSpecificClass($identifierOctet) && Identifier::isConstructed($identifierOctet)) {
return ExplicitlyTaggedObject::fromBinary($binaryData, $offsetIndex);
}
switch ($identifierOctet) {
case Identifier::BITSTRING:
return BitString::fromBinary($binaryData, $offsetIndex);
case Identifier::BOOLEAN:
return Boolean::fromBinary($binaryData, $offsetIndex);
case Identifier::ENUMERATED:
return Enumerated::fromBinary($binaryData, $offsetIndex);
case Identifier::INTEGER:
return Integer::fromBinary($binaryData, $offsetIndex);
case Identifier::NULL:
return NullObject::fromBinary($binaryData, $offsetIndex);
case Identifier::OBJECT_IDENTIFIER:
return ObjectIdentifier::fromBinary($binaryData, $offsetIndex);
case Identifier::RELATIVE_OID:
return RelativeObjectIdentifier::fromBinary($binaryData, $offsetIndex);
case Identifier::OCTETSTRING:
return OctetString::fromBinary($binaryData, $offsetIndex);
case Identifier::SEQUENCE:
return Sequence::fromBinary($binaryData, $offsetIndex);
case Identifier::SET:
return Set::fromBinary($binaryData, $offsetIndex);
case Identifier::UTC_TIME:
return UTCTime::fromBinary($binaryData, $offsetIndex);
case Identifier::GENERALIZED_TIME:
return GeneralizedTime::fromBinary($binaryData, $offsetIndex);
case Identifier::IA5_STRING:
return IA5String::fromBinary($binaryData, $offsetIndex);
case Identifier::PRINTABLE_STRING:
return PrintableString::fromBinary($binaryData, $offsetIndex);
case Identifier::NUMERIC_STRING:
return NumericString::fromBinary($binaryData, $offsetIndex);
case Identifier::UTF8_STRING:
return UTF8String::fromBinary($binaryData, $offsetIndex);
case Identifier::UNIVERSAL_STRING:
return UniversalString::fromBinary($binaryData, $offsetIndex);
case Identifier::CHARACTER_STRING:
return CharacterString::fromBinary($binaryData, $offsetIndex);
case Identifier::GENERAL_STRING:
return GeneralString::fromBinary($binaryData, $offsetIndex);
case Identifier::VISIBLE_STRING:
return VisibleString::fromBinary($binaryData, $offsetIndex);
case Identifier::GRAPHIC_STRING:
return GraphicString::fromBinary($binaryData, $offsetIndex);
case Identifier::BMP_STRING:
return BMPString::fromBinary($binaryData, $offsetIndex);
case Identifier::T61_STRING:
return T61String::fromBinary($binaryData, $offsetIndex);
case Identifier::OBJECT_DESCRIPTOR:
return ObjectDescriptor::fromBinary($binaryData, $offsetIndex);
default:
// At this point the identifier may be >1 byte.
if (Identifier::isConstructed($identifierOctet)) {
return new UnknownConstructedObject($binaryData, $offsetIndex);
} else {
$identifier = self::parseBinaryIdentifier($binaryData, $offsetIndex);
$lengthOfUnknownObject = self::parseContentLength($binaryData, $offsetIndex);
$offsetIndex += $lengthOfUnknownObject;
return new UnknownObject($identifier, $lengthOfUnknownObject);
}
}
}