/** * @dataProvider getTags * @depends testGetBinary */ public function testFromBinary($originalTag) { $originalStringObject = new PrintableString('test'); $originalObject = new ExplicitlyTaggedObject($originalTag, $originalStringObject); $binaryData = $originalObject->getBinary(); $parsedObject = ExplicitlyTaggedObject::fromBinary($binaryData); $this->assertEquals($originalObject, $parsedObject); }
/** * @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); } } }
/** * @expectedException \FG\ASN1\Exception\ParserException * @expectedExceptionMessage ASN.1 Parser Exception at offset 2: Context-Specific explicitly tagged object [1] starting at offset 2 is longer than allowed in the outer tag * @depends testFromBinary */ public function testFromBinaryWithInvalidOuterLengthThrowsException2() { $data = hex2bin('a102040101'); // ^- this is wrong. correct would be "3" ExplicitlyTaggedObject::fromBinary($data); }
public function testFromBinaryWithMultipleObjects() { $object1 = new Boolean(true); $object2 = new Integer(42); $identifier = 0xa0; $length = $object1->getObjectLength() + $object2->getObjectLength(); $data = chr($identifier) . chr($length) . $object1->getBinary() . $object2->getBinary(); $object = ExplicitlyTaggedObject::fromBinary($data); $this->assertEquals(2 + $length, $object->getObjectLength()); $this->assertEquals([$object1, $object2], $object->getContent()); $this->assertEquals($data, $object->getBinary()); $this->assertEquals('2 context specific objects with tag [0]', $object->__toString()); }