/** * @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); } } }
/** * @depends testFromBinaryWithDEREncoding * @depends testFromBinaryWithBEREncodingWithoutSecondsInUTC * @depends testFromBinaryWithBEREncodingWithoutSecondsInOtherTimeZone * @depends testFromBinaryWithBEREncodingWithSecondsInOtherTimeZone */ public function testFromBinaryWithOffset() { $binaryData = chr(Identifier::UTC_TIME); $binaryData .= chr(11); $binaryData .= '1209231613Z'; $dateTime1 = new \DateTime('2012-09-23 16:13:00', $this->UTC); $binaryData .= chr(Identifier::UTC_TIME); $binaryData .= chr(13); $binaryData .= '120923180030Z'; $dateTime2 = new \DateTime('2012-09-23 18:00:30', $this->UTC); $binaryData .= chr(Identifier::UTC_TIME); $binaryData .= chr(17); $binaryData .= '120924021332+0400'; $dateTime3 = new \DateTime('2012-09-23 22:13:32', $this->UTC); $offset = 0; $parsedObject = UTCTime::fromBinary($binaryData, $offset); $this->assertEquals($dateTime1, $parsedObject->getContent()); $this->assertEquals(13, $offset); $parsedObject = UTCTime::fromBinary($binaryData, $offset); $this->assertEquals($dateTime2, $parsedObject->getContent()); $this->assertEquals(28, $offset); $parsedObject = UTCTime::fromBinary($binaryData, $offset); $this->assertEquals($dateTime3, $parsedObject->getContent()); $this->assertEquals(47, $offset); }