sop / asn1

lib/ASN1/Type/Constructed/Set.php

Indentation +50 added lines, -50 removed lines

@@ -12,56 +12,56 @@
  */
 class Set extends Structure
 {
-    /**
-     * Constructor.
-     *
-     * @param Element ...$elements Any number of elements
-     */
-    public function __construct(Element ...$elements)
-    {
-        $this->_typeTag = self::TYPE_SET;
-        parent::__construct(...$elements);
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param Element ...$elements Any number of elements
+	 */
+	public function __construct(Element ...$elements)
+	{
+		$this->_typeTag = self::TYPE_SET;
+		parent::__construct(...$elements);
+	}
 
-    /**
-     * Sort by canonical ascending order.
-     *
-     * Used for DER encoding of *SET* type.
-     *
-     * @return self
-     */
-    public function sortedSet(): self
-    {
-        $obj = clone $this;
-        usort($obj->_elements,
-            function (Element $a, Element $b) {
-                if ($a->typeClass() !== $b->typeClass()) {
-                    return $a->typeClass() < $b->typeClass() ? -1 : 1;
-                }
-                if ($a->tag() === $b->tag()) {
-                    return 0;
-                }
-                return $a->tag() < $b->tag() ? -1 : 1;
-            });
-        return $obj;
-    }
+	/**
+	 * Sort by canonical ascending order.
+	 *
+	 * Used for DER encoding of *SET* type.
+	 *
+	 * @return self
+	 */
+	public function sortedSet(): self
+	{
+		$obj = clone $this;
+		usort($obj->_elements,
+			function (Element $a, Element $b) {
+				if ($a->typeClass() !== $b->typeClass()) {
+					return $a->typeClass() < $b->typeClass() ? -1 : 1;
+				}
+				if ($a->tag() === $b->tag()) {
+					return 0;
+				}
+				return $a->tag() < $b->tag() ? -1 : 1;
+			});
+		return $obj;
+	}
 
-    /**
-     * Sort by encoding ascending order.
-     *
-     * Used for DER encoding of *SET OF* type.
-     *
-     * @return self
-     */
-    public function sortedSetOf(): self
-    {
-        $obj = clone $this;
-        usort($obj->_elements,
-            function (Element $a, Element $b) {
-                $a_der = $a->toDER();
-                $b_der = $b->toDER();
-                return strcmp($a_der, $b_der);
-            });
-        return $obj;
-    }
+	/**
+	 * Sort by encoding ascending order.
+	 *
+	 * Used for DER encoding of *SET OF* type.
+	 *
+	 * @return self
+	 */
+	public function sortedSetOf(): self
+	{
+		$obj = clone $this;
+		usort($obj->_elements,
+			function (Element $a, Element $b) {
+				$a_der = $a->toDER();
+				$b_der = $b->toDER();
+				return strcmp($a_der, $b_der);
+			});
+		return $obj;
+	}
 }

lib/ASN1/Type/Constructed/ConstructedString.php

Indentation +96 added lines, -96 removed lines

@@ -31,106 +31,106 @@
  */
 class ConstructedString extends Structure implements StringType
 {
-    /**
-     * Constructor.
-     *
-     * @internal Use `create()` or `createWithTag()` method instead
-     *
-     * @param Element ...$elements Any number of elements
-     */
-    protected function __construct(Element ...$elements)
-    {
-        parent::__construct(...$elements);
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @internal Use `create()` or `createWithTag()` method instead
+	 *
+	 * @param Element ...$elements Any number of elements
+	 */
+	protected function __construct(Element ...$elements)
+	{
+		parent::__construct(...$elements);
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    public function __toString(): string
-    {
-        return $this->string();
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	public function __toString(): string
+	{
+		return $this->string();
+	}
 
-    /**
-     * Create from a list of string type elements.
-     *
-     * All strings must have the same type.
-     *
-     * @param StringType ...$elements
-     *
-     * @throws \LogicException
-     *
-     * @return self
-     */
-    public static function create(StringType ...$elements): self
-    {
-        if (!count($elements)) {
-            throw new \LogicException(
-                'No elements, unable to determine type tag.');
-        }
-        $tag = $elements[0]->tag();
-        foreach ($elements as $el) {
-            if ($el->tag() !== $tag) {
-                throw new \LogicException(
-                    'All elements in constructed string must have the same type.');
-            }
-        }
-        return self::createWithTag($tag, ...$elements);
-    }
+	/**
+	 * Create from a list of string type elements.
+	 *
+	 * All strings must have the same type.
+	 *
+	 * @param StringType ...$elements
+	 *
+	 * @throws \LogicException
+	 *
+	 * @return self
+	 */
+	public static function create(StringType ...$elements): self
+	{
+		if (!count($elements)) {
+			throw new \LogicException(
+				'No elements, unable to determine type tag.');
+		}
+		$tag = $elements[0]->tag();
+		foreach ($elements as $el) {
+			if ($el->tag() !== $tag) {
+				throw new \LogicException(
+					'All elements in constructed string must have the same type.');
+			}
+		}
+		return self::createWithTag($tag, ...$elements);
+	}
 
-    /**
-     * Create from strings with a given type tag.
-     *
-     * Does not perform any validation on types.
-     *
-     * @param int        $tag         Type tag for the constructed string element
-     * @param StringType ...$elements Any number of elements
-     *
-     * @return self
-     */
-    public static function createWithTag(int $tag, StringType ...$elements)
-    {
-        $el = new self(...$elements);
-        $el->_typeTag = $tag;
-        return $el;
-    }
+	/**
+	 * Create from strings with a given type tag.
+	 *
+	 * Does not perform any validation on types.
+	 *
+	 * @param int        $tag         Type tag for the constructed string element
+	 * @param StringType ...$elements Any number of elements
+	 *
+	 * @return self
+	 */
+	public static function createWithTag(int $tag, StringType ...$elements)
+	{
+		$el = new self(...$elements);
+		$el->_typeTag = $tag;
+		return $el;
+	}
 
-    /**
-     * Get a list of strings in this structure.
-     *
-     * @return string[]
-     */
-    public function strings(): array
-    {
-        return array_map(function (StringType $el) {
-            return $el->string();
-        }, $this->_elements);
-    }
+	/**
+	 * Get a list of strings in this structure.
+	 *
+	 * @return string[]
+	 */
+	public function strings(): array
+	{
+		return array_map(function (StringType $el) {
+			return $el->string();
+		}, $this->_elements);
+	}
 
-    /**
-     * Get the contained strings concatenated together.
-     *
-     * NOTE: It's unclear how bit strings with unused bits should be concatenated.
-     *
-     * @return string
-     */
-    public function string(): string
-    {
-        return implode('', $this->strings());
-    }
+	/**
+	 * Get the contained strings concatenated together.
+	 *
+	 * NOTE: It's unclear how bit strings with unused bits should be concatenated.
+	 *
+	 * @return string
+	 */
+	public function string(): string
+	{
+		return implode('', $this->strings());
+	}
 
-    /**
-     * {@inheritdoc}
-     *
-     * @return self
-     */
-    protected static function _decodeFromDER(Identifier $identifier,
-        string $data, int &$offset): ElementBase
-    {
-        /** @var ConstructedString $type */
-        $type = forward_static_call_array([parent::class, __FUNCTION__],
-            [$identifier, $data, &$offset]);
-        $type->_typeTag = $identifier->intTag();
-        return $type;
-    }
+	/**
+	 * {@inheritdoc}
+	 *
+	 * @return self
+	 */
+	protected static function _decodeFromDER(Identifier $identifier,
+		string $data, int &$offset): ElementBase
+	{
+		/** @var ConstructedString $type */
+		$type = forward_static_call_array([parent::class, __FUNCTION__],
+			[$identifier, $data, &$offset]);
+		$type->_typeTag = $identifier->intTag();
+		return $type;
+	}
 }

lib/ASN1/Type/Tagged/ImplicitTagging.php

Indentation +11 added lines, -11 removed lines

@@ -13,15 +13,15 @@
  */
 interface ImplicitTagging extends ElementBase
 {
-    /**
-     * Get implicitly tagged wrapped element.
-     *
-     * @param int $tag   Tag of the element
-     * @param int $class Expected type class of the element
-     *
-     * @throws \UnexpectedValueException If expectation fails
-     *
-     * @return UnspecifiedType
-     */
-    public function implicit(int $tag, int $class = Identifier::CLASS_UNIVERSAL): UnspecifiedType;
+	/**
+	 * Get implicitly tagged wrapped element.
+	 *
+	 * @param int $tag   Tag of the element
+	 * @param int $class Expected type class of the element
+	 *
+	 * @throws \UnexpectedValueException If expectation fails
+	 *
+	 * @return UnspecifiedType
+	 */
+	public function implicit(int $tag, int $class = Identifier::CLASS_UNIVERSAL): UnspecifiedType;
 }

lib/ASN1/Type/TimeType.php

Indentation +6 added lines, -6 removed lines

@@ -9,10 +9,10 @@
  */
 interface TimeType extends StringType
 {
-    /**
-     * Get the date and time.
-     *
-     * @return \DateTimeImmutable
-     */
-    public function dateTime(): \DateTimeImmutable;
+	/**
+	 * Get the date and time.
+	 *
+	 * @return \DateTimeImmutable
+	 */
+	public function dateTime(): \DateTimeImmutable;
 }

lib/ASN1/Type/BaseString.php

Indentation +50 added lines, -50 removed lines

@@ -11,58 +11,58 @@
  */
 abstract class BaseString extends Element implements StringType
 {
-    /**
-     * String value.
-     *
-     * @var string
-     */
-    protected $_string;
+	/**
+	 * String value.
+	 *
+	 * @var string
+	 */
+	protected $_string;
 
-    /**
-     * Constructor.
-     *
-     * @param string $string
-     *
-     * @throws \InvalidArgumentException
-     */
-    public function __construct(string $string)
-    {
-        if (!$this->_validateString($string)) {
-            throw new \InvalidArgumentException(
-                sprintf('Not a valid %s string.',
-                    self::tagToName($this->_typeTag)));
-        }
-        $this->_string = $string;
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param string $string
+	 *
+	 * @throws \InvalidArgumentException
+	 */
+	public function __construct(string $string)
+	{
+		if (!$this->_validateString($string)) {
+			throw new \InvalidArgumentException(
+				sprintf('Not a valid %s string.',
+					self::tagToName($this->_typeTag)));
+		}
+		$this->_string = $string;
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    public function __toString(): string
-    {
-        return $this->string();
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	public function __toString(): string
+	{
+		return $this->string();
+	}
 
-    /**
-     * Get the string value.
-     *
-     * @return string
-     */
-    public function string(): string
-    {
-        return $this->_string;
-    }
+	/**
+	 * Get the string value.
+	 *
+	 * @return string
+	 */
+	public function string(): string
+	{
+		return $this->_string;
+	}
 
-    /**
-     * Check whether string is valid for the concrete type.
-     *
-     * @param string $string
-     *
-     * @return bool
-     */
-    protected function _validateString(string $string): bool
-    {
-        // Override in derived classes
-        return true;
-    }
+	/**
+	 * Check whether string is valid for the concrete type.
+	 *
+	 * @param string $string
+	 *
+	 * @return bool
+	 */
+	protected function _validateString(string $string): bool
+	{
+		// Override in derived classes
+		return true;
+	}
 }

lib/ASN1/Type/UnspecifiedType.php

Indentation +672 added lines, -672 removed lines

@@ -17,676 +17,676 @@
  */
 class UnspecifiedType implements ElementBase
 {
-    /**
-     * The wrapped element.
-     *
-     * @var Element
-     */
-    private $_element;
-
-    /**
-     * Constructor.
-     *
-     * @param Element $el
-     */
-    public function __construct(Element $el)
-    {
-        $this->_element = $el;
-    }
-
-    /**
-     * Initialize from DER data.
-     *
-     * @param string $data DER encoded data
-     *
-     * @return self
-     */
-    public static function fromDER(string $data): self
-    {
-        return Element::fromDER($data)->asUnspecified();
-    }
-
-    /**
-     * Initialize from `ElementBase` interface.
-     *
-     * @param ElementBase $el
-     *
-     * @return self
-     */
-    public static function fromElementBase(ElementBase $el): self
-    {
-        // if element is already wrapped
-        if ($el instanceof self) {
-            return $el;
-        }
-        return new self($el->asElement());
-    }
-
-    /**
-     * Get the wrapped element as a context specific tagged type.
-     *
-     * @throws \UnexpectedValueException If the element is not tagged
-     *
-     * @return TaggedType
-     */
-    public function asTagged(): TaggedType
-    {
-        if (!$this->_element instanceof TaggedType) {
-            throw new \UnexpectedValueException(
-                'Tagged element expected, got ' . $this->_typeDescriptorString());
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as an application specific type.
-     *
-     * @throws \UnexpectedValueException If element is not application specific
-     *
-     * @return \Sop\ASN1\Type\Tagged\ApplicationType
-     */
-    public function asApplication(): Tagged\ApplicationType
-    {
-        if (!$this->_element instanceof Tagged\ApplicationType) {
-            throw new \UnexpectedValueException(
-                'Application type expected, got ' . $this->_typeDescriptorString());
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a private tagged type.
-     *
-     * @throws \UnexpectedValueException If element is not using private tagging
-     *
-     * @return \Sop\ASN1\Type\Tagged\PrivateType
-     */
-    public function asPrivate(): Tagged\PrivateType
-    {
-        if (!$this->_element instanceof Tagged\PrivateType) {
-            throw new \UnexpectedValueException(
-                'Private type expected, got ' . $this->_typeDescriptorString());
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a boolean type.
-     *
-     * @throws \UnexpectedValueException If the element is not a boolean
-     *
-     * @return \Sop\ASN1\Type\Primitive\Boolean
-     */
-    public function asBoolean(): Primitive\Boolean
-    {
-        if (!$this->_element instanceof Primitive\Boolean) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_BOOLEAN));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as an integer type.
-     *
-     * @throws \UnexpectedValueException If the element is not an integer
-     *
-     * @return \Sop\ASN1\Type\Primitive\Integer
-     */
-    public function asInteger(): Primitive\Integer
-    {
-        if (!$this->_element instanceof Primitive\Integer) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_INTEGER));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a bit string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a bit string
-     *
-     * @return \Sop\ASN1\Type\Primitive\BitString
-     */
-    public function asBitString(): Primitive\BitString
-    {
-        if (!$this->_element instanceof Primitive\BitString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_BIT_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as an octet string type.
-     *
-     * @throws \UnexpectedValueException If the element is not an octet string
-     *
-     * @return \Sop\ASN1\Type\Primitive\OctetString
-     */
-    public function asOctetString(): Primitive\OctetString
-    {
-        if (!$this->_element instanceof Primitive\OctetString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_OCTET_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a null type.
-     *
-     * @throws \UnexpectedValueException If the element is not a null
-     *
-     * @return \Sop\ASN1\Type\Primitive\NullType
-     */
-    public function asNull(): Primitive\NullType
-    {
-        if (!$this->_element instanceof Primitive\NullType) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_NULL));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as an object identifier type.
-     *
-     * @throws \UnexpectedValueException If the element is not an object identifier
-     *
-     * @return \Sop\ASN1\Type\Primitive\ObjectIdentifier
-     */
-    public function asObjectIdentifier(): Primitive\ObjectIdentifier
-    {
-        if (!$this->_element instanceof Primitive\ObjectIdentifier) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_OBJECT_IDENTIFIER));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as an object descriptor type.
-     *
-     * @throws \UnexpectedValueException If the element is not an object descriptor
-     *
-     * @return \Sop\ASN1\Type\Primitive\ObjectDescriptor
-     */
-    public function asObjectDescriptor(): Primitive\ObjectDescriptor
-    {
-        if (!$this->_element instanceof Primitive\ObjectDescriptor) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_OBJECT_DESCRIPTOR));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a real type.
-     *
-     * @throws \UnexpectedValueException If the element is not a real
-     *
-     * @return \Sop\ASN1\Type\Primitive\Real
-     */
-    public function asReal(): Primitive\Real
-    {
-        if (!$this->_element instanceof Primitive\Real) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_REAL));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as an enumerated type.
-     *
-     * @throws \UnexpectedValueException If the element is not an enumerated
-     *
-     * @return \Sop\ASN1\Type\Primitive\Enumerated
-     */
-    public function asEnumerated(): Primitive\Enumerated
-    {
-        if (!$this->_element instanceof Primitive\Enumerated) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_ENUMERATED));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a UTF8 string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a UTF8 string
-     *
-     * @return \Sop\ASN1\Type\Primitive\UTF8String
-     */
-    public function asUTF8String(): Primitive\UTF8String
-    {
-        if (!$this->_element instanceof Primitive\UTF8String) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_UTF8_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a relative OID type.
-     *
-     * @throws \UnexpectedValueException If the element is not a relative OID
-     *
-     * @return \Sop\ASN1\Type\Primitive\RelativeOID
-     */
-    public function asRelativeOID(): Primitive\RelativeOID
-    {
-        if (!$this->_element instanceof Primitive\RelativeOID) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_RELATIVE_OID));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a sequence type.
-     *
-     * @throws \UnexpectedValueException If the element is not a sequence
-     *
-     * @return \Sop\ASN1\Type\Constructed\Sequence
-     */
-    public function asSequence(): Constructed\Sequence
-    {
-        if (!$this->_element instanceof Constructed\Sequence) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_SEQUENCE));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a set type.
-     *
-     * @throws \UnexpectedValueException If the element is not a set
-     *
-     * @return \Sop\ASN1\Type\Constructed\Set
-     */
-    public function asSet(): Constructed\Set
-    {
-        if (!$this->_element instanceof Constructed\Set) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_SET));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a numeric string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a numeric string
-     *
-     * @return \Sop\ASN1\Type\Primitive\NumericString
-     */
-    public function asNumericString(): Primitive\NumericString
-    {
-        if (!$this->_element instanceof Primitive\NumericString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_NUMERIC_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a printable string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a printable string
-     *
-     * @return \Sop\ASN1\Type\Primitive\PrintableString
-     */
-    public function asPrintableString(): Primitive\PrintableString
-    {
-        if (!$this->_element instanceof Primitive\PrintableString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_PRINTABLE_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a T61 string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a T61 string
-     *
-     * @return \Sop\ASN1\Type\Primitive\T61String
-     */
-    public function asT61String(): Primitive\T61String
-    {
-        if (!$this->_element instanceof Primitive\T61String) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_T61_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a videotex string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a videotex string
-     *
-     * @return \Sop\ASN1\Type\Primitive\VideotexString
-     */
-    public function asVideotexString(): Primitive\VideotexString
-    {
-        if (!$this->_element instanceof Primitive\VideotexString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_VIDEOTEX_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a IA5 string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a IA5 string
-     *
-     * @return \Sop\ASN1\Type\Primitive\IA5String
-     */
-    public function asIA5String(): Primitive\IA5String
-    {
-        if (!$this->_element instanceof Primitive\IA5String) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_IA5_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as an UTC time type.
-     *
-     * @throws \UnexpectedValueException If the element is not a UTC time
-     *
-     * @return \Sop\ASN1\Type\Primitive\UTCTime
-     */
-    public function asUTCTime(): Primitive\UTCTime
-    {
-        if (!$this->_element instanceof Primitive\UTCTime) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_UTC_TIME));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a generalized time type.
-     *
-     * @throws \UnexpectedValueException If the element is not a generalized time
-     *
-     * @return \Sop\ASN1\Type\Primitive\GeneralizedTime
-     */
-    public function asGeneralizedTime(): Primitive\GeneralizedTime
-    {
-        if (!$this->_element instanceof Primitive\GeneralizedTime) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_GENERALIZED_TIME));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a graphic string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a graphic string
-     *
-     * @return \Sop\ASN1\Type\Primitive\GraphicString
-     */
-    public function asGraphicString(): Primitive\GraphicString
-    {
-        if (!$this->_element instanceof Primitive\GraphicString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_GRAPHIC_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a visible string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a visible string
-     *
-     * @return \Sop\ASN1\Type\Primitive\VisibleString
-     */
-    public function asVisibleString(): Primitive\VisibleString
-    {
-        if (!$this->_element instanceof Primitive\VisibleString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_VISIBLE_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a general string type.
-     *
-     * @throws \UnexpectedValueException If the element is not general string
-     *
-     * @return \Sop\ASN1\Type\Primitive\GeneralString
-     */
-    public function asGeneralString(): Primitive\GeneralString
-    {
-        if (!$this->_element instanceof Primitive\GeneralString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_GENERAL_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a universal string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a universal string
-     *
-     * @return \Sop\ASN1\Type\Primitive\UniversalString
-     */
-    public function asUniversalString(): Primitive\UniversalString
-    {
-        if (!$this->_element instanceof Primitive\UniversalString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_UNIVERSAL_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a character string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a character string
-     *
-     * @return \Sop\ASN1\Type\Primitive\CharacterString
-     */
-    public function asCharacterString(): Primitive\CharacterString
-    {
-        if (!$this->_element instanceof Primitive\CharacterString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_CHARACTER_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a BMP string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a bmp string
-     *
-     * @return \Sop\ASN1\Type\Primitive\BMPString
-     */
-    public function asBMPString(): Primitive\BMPString
-    {
-        if (!$this->_element instanceof Primitive\BMPString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_BMP_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as a constructed string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a constructed string
-     *
-     * @return \Sop\ASN1\Type\Constructed\ConstructedString
-     */
-    public function asConstructedString(): Constructed\ConstructedString
-    {
-        if (!$this->_element instanceof Constructed\ConstructedString) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_CONSTRUCTED_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as any string type.
-     *
-     * @throws \UnexpectedValueException If the element is not a string type
-     *
-     * @return StringType
-     */
-    public function asString(): StringType
-    {
-        if (!$this->_element instanceof StringType) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_STRING));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * Get the wrapped element as any time type.
-     *
-     * @throws \UnexpectedValueException If the element is not a time type
-     *
-     * @return TimeType
-     */
-    public function asTime(): TimeType
-    {
-        if (!$this->_element instanceof TimeType) {
-            throw new \UnexpectedValueException(
-                $this->_generateExceptionMessage(Element::TYPE_TIME));
-        }
-        return $this->_element;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function asElement(): Element
-    {
-        return $this->_element;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function asUnspecified(): UnspecifiedType
-    {
-        return $this;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function toDER(): string
-    {
-        return $this->_element->toDER();
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function typeClass(): int
-    {
-        return $this->_element->typeClass();
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function tag(): int
-    {
-        return $this->_element->tag();
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function isConstructed(): bool
-    {
-        return $this->_element->isConstructed();
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function isType(int $tag): bool
-    {
-        return $this->_element->isType($tag);
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function isTagged(): bool
-    {
-        return $this->_element->isTagged();
-    }
-
-    /**
-     * {@inheritdoc}
-     *
-     * Consider using any of the `as*` accessor methods instead.
-     */
-    public function expectType(int $tag): ElementBase
-    {
-        return $this->_element->expectType($tag);
-    }
-
-    /**
-     * {@inheritdoc}
-     *
-     * Consider using `asTagged()` method instead and chaining
-     * with `TaggedType::asExplicit()` or `TaggedType::asImplicit()`.
-     */
-    public function expectTagged(?int $tag = null): TaggedType
-    {
-        return $this->_element->expectTagged($tag);
-    }
-
-    /**
-     * Generate message for exceptions thrown by `as*` methods.
-     *
-     * @param int $tag Type tag of the expected element
-     *
-     * @return string
-     */
-    private function _generateExceptionMessage(int $tag): string
-    {
-        return sprintf('%s expected, got %s.', Element::tagToName($tag),
-            $this->_typeDescriptorString());
-    }
-
-    /**
-     * Get textual description of the wrapped element for debugging purposes.
-     *
-     * @return string
-     */
-    private function _typeDescriptorString(): string
-    {
-        $type_cls = $this->_element->typeClass();
-        $tag = $this->_element->tag();
-        $str = $this->_element->isConstructed() ? 'constructed ' : 'primitive ';
-        if (Identifier::CLASS_UNIVERSAL === $type_cls) {
-            $str .= Element::tagToName($tag);
-        } else {
-            $str .= Identifier::classToName($type_cls) . " TAG {$tag}";
-        }
-        return $str;
-    }
+	/**
+	 * The wrapped element.
+	 *
+	 * @var Element
+	 */
+	private $_element;
+
+	/**
+	 * Constructor.
+	 *
+	 * @param Element $el
+	 */
+	public function __construct(Element $el)
+	{
+		$this->_element = $el;
+	}
+
+	/**
+	 * Initialize from DER data.
+	 *
+	 * @param string $data DER encoded data
+	 *
+	 * @return self
+	 */
+	public static function fromDER(string $data): self
+	{
+		return Element::fromDER($data)->asUnspecified();
+	}
+
+	/**
+	 * Initialize from `ElementBase` interface.
+	 *
+	 * @param ElementBase $el
+	 *
+	 * @return self
+	 */
+	public static function fromElementBase(ElementBase $el): self
+	{
+		// if element is already wrapped
+		if ($el instanceof self) {
+			return $el;
+		}
+		return new self($el->asElement());
+	}
+
+	/**
+	 * Get the wrapped element as a context specific tagged type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not tagged
+	 *
+	 * @return TaggedType
+	 */
+	public function asTagged(): TaggedType
+	{
+		if (!$this->_element instanceof TaggedType) {
+			throw new \UnexpectedValueException(
+				'Tagged element expected, got ' . $this->_typeDescriptorString());
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as an application specific type.
+	 *
+	 * @throws \UnexpectedValueException If element is not application specific
+	 *
+	 * @return \Sop\ASN1\Type\Tagged\ApplicationType
+	 */
+	public function asApplication(): Tagged\ApplicationType
+	{
+		if (!$this->_element instanceof Tagged\ApplicationType) {
+			throw new \UnexpectedValueException(
+				'Application type expected, got ' . $this->_typeDescriptorString());
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a private tagged type.
+	 *
+	 * @throws \UnexpectedValueException If element is not using private tagging
+	 *
+	 * @return \Sop\ASN1\Type\Tagged\PrivateType
+	 */
+	public function asPrivate(): Tagged\PrivateType
+	{
+		if (!$this->_element instanceof Tagged\PrivateType) {
+			throw new \UnexpectedValueException(
+				'Private type expected, got ' . $this->_typeDescriptorString());
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a boolean type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a boolean
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\Boolean
+	 */
+	public function asBoolean(): Primitive\Boolean
+	{
+		if (!$this->_element instanceof Primitive\Boolean) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_BOOLEAN));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as an integer type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not an integer
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\Integer
+	 */
+	public function asInteger(): Primitive\Integer
+	{
+		if (!$this->_element instanceof Primitive\Integer) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_INTEGER));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a bit string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a bit string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\BitString
+	 */
+	public function asBitString(): Primitive\BitString
+	{
+		if (!$this->_element instanceof Primitive\BitString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_BIT_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as an octet string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not an octet string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\OctetString
+	 */
+	public function asOctetString(): Primitive\OctetString
+	{
+		if (!$this->_element instanceof Primitive\OctetString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_OCTET_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a null type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a null
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\NullType
+	 */
+	public function asNull(): Primitive\NullType
+	{
+		if (!$this->_element instanceof Primitive\NullType) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_NULL));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as an object identifier type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not an object identifier
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\ObjectIdentifier
+	 */
+	public function asObjectIdentifier(): Primitive\ObjectIdentifier
+	{
+		if (!$this->_element instanceof Primitive\ObjectIdentifier) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_OBJECT_IDENTIFIER));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as an object descriptor type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not an object descriptor
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\ObjectDescriptor
+	 */
+	public function asObjectDescriptor(): Primitive\ObjectDescriptor
+	{
+		if (!$this->_element instanceof Primitive\ObjectDescriptor) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_OBJECT_DESCRIPTOR));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a real type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a real
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\Real
+	 */
+	public function asReal(): Primitive\Real
+	{
+		if (!$this->_element instanceof Primitive\Real) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_REAL));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as an enumerated type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not an enumerated
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\Enumerated
+	 */
+	public function asEnumerated(): Primitive\Enumerated
+	{
+		if (!$this->_element instanceof Primitive\Enumerated) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_ENUMERATED));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a UTF8 string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a UTF8 string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\UTF8String
+	 */
+	public function asUTF8String(): Primitive\UTF8String
+	{
+		if (!$this->_element instanceof Primitive\UTF8String) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_UTF8_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a relative OID type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a relative OID
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\RelativeOID
+	 */
+	public function asRelativeOID(): Primitive\RelativeOID
+	{
+		if (!$this->_element instanceof Primitive\RelativeOID) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_RELATIVE_OID));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a sequence type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a sequence
+	 *
+	 * @return \Sop\ASN1\Type\Constructed\Sequence
+	 */
+	public function asSequence(): Constructed\Sequence
+	{
+		if (!$this->_element instanceof Constructed\Sequence) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_SEQUENCE));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a set type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a set
+	 *
+	 * @return \Sop\ASN1\Type\Constructed\Set
+	 */
+	public function asSet(): Constructed\Set
+	{
+		if (!$this->_element instanceof Constructed\Set) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_SET));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a numeric string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a numeric string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\NumericString
+	 */
+	public function asNumericString(): Primitive\NumericString
+	{
+		if (!$this->_element instanceof Primitive\NumericString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_NUMERIC_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a printable string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a printable string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\PrintableString
+	 */
+	public function asPrintableString(): Primitive\PrintableString
+	{
+		if (!$this->_element instanceof Primitive\PrintableString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_PRINTABLE_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a T61 string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a T61 string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\T61String
+	 */
+	public function asT61String(): Primitive\T61String
+	{
+		if (!$this->_element instanceof Primitive\T61String) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_T61_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a videotex string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a videotex string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\VideotexString
+	 */
+	public function asVideotexString(): Primitive\VideotexString
+	{
+		if (!$this->_element instanceof Primitive\VideotexString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_VIDEOTEX_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a IA5 string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a IA5 string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\IA5String
+	 */
+	public function asIA5String(): Primitive\IA5String
+	{
+		if (!$this->_element instanceof Primitive\IA5String) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_IA5_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as an UTC time type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a UTC time
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\UTCTime
+	 */
+	public function asUTCTime(): Primitive\UTCTime
+	{
+		if (!$this->_element instanceof Primitive\UTCTime) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_UTC_TIME));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a generalized time type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a generalized time
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\GeneralizedTime
+	 */
+	public function asGeneralizedTime(): Primitive\GeneralizedTime
+	{
+		if (!$this->_element instanceof Primitive\GeneralizedTime) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_GENERALIZED_TIME));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a graphic string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a graphic string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\GraphicString
+	 */
+	public function asGraphicString(): Primitive\GraphicString
+	{
+		if (!$this->_element instanceof Primitive\GraphicString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_GRAPHIC_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a visible string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a visible string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\VisibleString
+	 */
+	public function asVisibleString(): Primitive\VisibleString
+	{
+		if (!$this->_element instanceof Primitive\VisibleString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_VISIBLE_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a general string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not general string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\GeneralString
+	 */
+	public function asGeneralString(): Primitive\GeneralString
+	{
+		if (!$this->_element instanceof Primitive\GeneralString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_GENERAL_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a universal string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a universal string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\UniversalString
+	 */
+	public function asUniversalString(): Primitive\UniversalString
+	{
+		if (!$this->_element instanceof Primitive\UniversalString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_UNIVERSAL_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a character string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a character string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\CharacterString
+	 */
+	public function asCharacterString(): Primitive\CharacterString
+	{
+		if (!$this->_element instanceof Primitive\CharacterString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_CHARACTER_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a BMP string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a bmp string
+	 *
+	 * @return \Sop\ASN1\Type\Primitive\BMPString
+	 */
+	public function asBMPString(): Primitive\BMPString
+	{
+		if (!$this->_element instanceof Primitive\BMPString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_BMP_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as a constructed string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a constructed string
+	 *
+	 * @return \Sop\ASN1\Type\Constructed\ConstructedString
+	 */
+	public function asConstructedString(): Constructed\ConstructedString
+	{
+		if (!$this->_element instanceof Constructed\ConstructedString) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_CONSTRUCTED_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as any string type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a string type
+	 *
+	 * @return StringType
+	 */
+	public function asString(): StringType
+	{
+		if (!$this->_element instanceof StringType) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_STRING));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * Get the wrapped element as any time type.
+	 *
+	 * @throws \UnexpectedValueException If the element is not a time type
+	 *
+	 * @return TimeType
+	 */
+	public function asTime(): TimeType
+	{
+		if (!$this->_element instanceof TimeType) {
+			throw new \UnexpectedValueException(
+				$this->_generateExceptionMessage(Element::TYPE_TIME));
+		}
+		return $this->_element;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function asElement(): Element
+	{
+		return $this->_element;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function asUnspecified(): UnspecifiedType
+	{
+		return $this;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function toDER(): string
+	{
+		return $this->_element->toDER();
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function typeClass(): int
+	{
+		return $this->_element->typeClass();
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function tag(): int
+	{
+		return $this->_element->tag();
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function isConstructed(): bool
+	{
+		return $this->_element->isConstructed();
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function isType(int $tag): bool
+	{
+		return $this->_element->isType($tag);
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function isTagged(): bool
+	{
+		return $this->_element->isTagged();
+	}
+
+	/**
+	 * {@inheritdoc}
+	 *
+	 * Consider using any of the `as*` accessor methods instead.
+	 */
+	public function expectType(int $tag): ElementBase
+	{
+		return $this->_element->expectType($tag);
+	}
+
+	/**
+	 * {@inheritdoc}
+	 *
+	 * Consider using `asTagged()` method instead and chaining
+	 * with `TaggedType::asExplicit()` or `TaggedType::asImplicit()`.
+	 */
+	public function expectTagged(?int $tag = null): TaggedType
+	{
+		return $this->_element->expectTagged($tag);
+	}
+
+	/**
+	 * Generate message for exceptions thrown by `as*` methods.
+	 *
+	 * @param int $tag Type tag of the expected element
+	 *
+	 * @return string
+	 */
+	private function _generateExceptionMessage(int $tag): string
+	{
+		return sprintf('%s expected, got %s.', Element::tagToName($tag),
+			$this->_typeDescriptorString());
+	}
+
+	/**
+	 * Get textual description of the wrapped element for debugging purposes.
+	 *
+	 * @return string
+	 */
+	private function _typeDescriptorString(): string
+	{
+		$type_cls = $this->_element->typeClass();
+		$tag = $this->_element->tag();
+		$str = $this->_element->isConstructed() ? 'constructed ' : 'primitive ';
+		if (Identifier::CLASS_UNIVERSAL === $type_cls) {
+			$str .= Element::tagToName($tag);
+		} else {
+			$str .= Identifier::classToName($type_cls) . " TAG {$tag}";
+		}
+		return $str;
+	}
 }

lib/ASN1/Type/BaseTime.php

Indentation +99 added lines, -99 removed lines

@@ -11,111 +11,111 @@
  */
 abstract class BaseTime extends Element implements TimeType
 {
-    /**
-     * UTC timezone.
-     *
-     * @var string
-     */
-    const TZ_UTC = 'UTC';
+	/**
+	 * UTC timezone.
+	 *
+	 * @var string
+	 */
+	const TZ_UTC = 'UTC';
 
-    /**
-     * Date and time.
-     *
-     * @var \DateTimeImmutable
-     */
-    protected $_dateTime;
+	/**
+	 * Date and time.
+	 *
+	 * @var \DateTimeImmutable
+	 */
+	protected $_dateTime;
 
-    /**
-     * Constructor.
-     *
-     * @param \DateTimeImmutable $dt
-     */
-    public function __construct(\DateTimeImmutable $dt)
-    {
-        $this->_dateTime = $dt;
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param \DateTimeImmutable $dt
+	 */
+	public function __construct(\DateTimeImmutable $dt)
+	{
+		$this->_dateTime = $dt;
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    public function __toString(): string
-    {
-        return $this->string();
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	public function __toString(): string
+	{
+		return $this->string();
+	}
 
-    /**
-     * Initialize from datetime string.
-     *
-     * @see http://php.net/manual/en/datetime.formats.php
-     *
-     * @param string      $time Time string
-     * @param null|string $tz   timezone, if null use default
-     *
-     * @throws \RuntimeException
-     *
-     * @return self
-     */
-    public static function fromString(string $time, ?string $tz = null): self
-    {
-        try {
-            if (!isset($tz)) {
-                $tz = date_default_timezone_get();
-            }
-            return new static(
-                new \DateTimeImmutable($time, self::_createTimeZone($tz)));
-        } catch (\Exception $e) {
-            throw new \RuntimeException(
-                'Failed to create DateTime: ' .
-                self::_getLastDateTimeImmutableErrorsStr(), 0, $e);
-        }
-    }
+	/**
+	 * Initialize from datetime string.
+	 *
+	 * @see http://php.net/manual/en/datetime.formats.php
+	 *
+	 * @param string      $time Time string
+	 * @param null|string $tz   timezone, if null use default
+	 *
+	 * @throws \RuntimeException
+	 *
+	 * @return self
+	 */
+	public static function fromString(string $time, ?string $tz = null): self
+	{
+		try {
+			if (!isset($tz)) {
+				$tz = date_default_timezone_get();
+			}
+			return new static(
+				new \DateTimeImmutable($time, self::_createTimeZone($tz)));
+		} catch (\Exception $e) {
+			throw new \RuntimeException(
+				'Failed to create DateTime: ' .
+				self::_getLastDateTimeImmutableErrorsStr(), 0, $e);
+		}
+	}
 
-    /**
-     * Get the date and time.
-     *
-     * @return \DateTimeImmutable
-     */
-    public function dateTime(): \DateTimeImmutable
-    {
-        return $this->_dateTime;
-    }
+	/**
+	 * Get the date and time.
+	 *
+	 * @return \DateTimeImmutable
+	 */
+	public function dateTime(): \DateTimeImmutable
+	{
+		return $this->_dateTime;
+	}
 
-    /**
-     * Get the date and time as a type specific string.
-     *
-     * @return string
-     */
-    public function string(): string
-    {
-        return $this->_encodedContentDER();
-    }
+	/**
+	 * Get the date and time as a type specific string.
+	 *
+	 * @return string
+	 */
+	public function string(): string
+	{
+		return $this->_encodedContentDER();
+	}
 
-    /**
-     * Create `DateTimeZone` object from string.
-     *
-     * @param string $tz
-     *
-     * @throws \UnexpectedValueException If timezone is invalid
-     *
-     * @return \DateTimeZone
-     */
-    protected static function _createTimeZone(string $tz): \DateTimeZone
-    {
-        try {
-            return new \DateTimeZone($tz);
-        } catch (\Exception $e) {
-            throw new \UnexpectedValueException('Invalid timezone.', 0, $e);
-        }
-    }
+	/**
+	 * Create `DateTimeZone` object from string.
+	 *
+	 * @param string $tz
+	 *
+	 * @throws \UnexpectedValueException If timezone is invalid
+	 *
+	 * @return \DateTimeZone
+	 */
+	protected static function _createTimeZone(string $tz): \DateTimeZone
+	{
+		try {
+			return new \DateTimeZone($tz);
+		} catch (\Exception $e) {
+			throw new \UnexpectedValueException('Invalid timezone.', 0, $e);
+		}
+	}
 
-    /**
-     * Get last error caused by `DateTimeImmutable`.
-     *
-     * @return string
-     */
-    protected static function _getLastDateTimeImmutableErrorsStr(): string
-    {
-        $errors = \DateTimeImmutable::getLastErrors()['errors'];
-        return implode(', ', $errors);
-    }
+	/**
+	 * Get last error caused by `DateTimeImmutable`.
+	 *
+	 * @return string
+	 */
+	protected static function _getLastDateTimeImmutableErrorsStr(): string
+	{
+		$errors = \DateTimeImmutable::getLastErrors()['errors'];
+		return implode(', ', $errors);
+	}
 }

lib/ASN1/Type/PrimitiveString.php

Indentation +30 added lines, -30 removed lines

@@ -18,36 +18,36 @@
  */
 abstract class PrimitiveString extends BaseString
 {
-    use PrimitiveType;
+	use PrimitiveType;
 
-    /**
-     * {@inheritdoc}
-     */
-    protected function _encodedContentDER(): string
-    {
-        return $this->_string;
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	protected function _encodedContentDER(): string
+	{
+		return $this->_string;
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    protected static function _decodeFromDER(Identifier $identifier,
-        string $data, int &$offset): ElementBase
-    {
-        $idx = $offset;
-        if (!$identifier->isPrimitive()) {
-            throw new DecodeException('DER encoded string must be primitive.');
-        }
-        $length = Length::expectFromDER($data, $idx)->intLength();
-        $str = $length ? substr($data, $idx, $length) : '';
-        // substr should never return false, since length is
-        // checked by Length::expectFromDER.
-        assert(is_string($str), new DecodeException('substr'));
-        $offset = $idx + $length;
-        try {
-            return new static($str);
-        } catch (\InvalidArgumentException $e) {
-            throw new DecodeException($e->getMessage(), 0, $e);
-        }
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	protected static function _decodeFromDER(Identifier $identifier,
+		string $data, int &$offset): ElementBase
+	{
+		$idx = $offset;
+		if (!$identifier->isPrimitive()) {
+			throw new DecodeException('DER encoded string must be primitive.');
+		}
+		$length = Length::expectFromDER($data, $idx)->intLength();
+		$str = $length ? substr($data, $idx, $length) : '';
+		// substr should never return false, since length is
+		// checked by Length::expectFromDER.
+		assert(is_string($str), new DecodeException('substr'));
+		$offset = $idx + $length;
+		try {
+			return new static($str);
+		} catch (\InvalidArgumentException $e) {
+			throw new DecodeException($e->getMessage(), 0, $e);
+		}
+	}
 }

lib/ASN1/Type/Primitive/UTCTime.php

Indentation +62 added lines, -62 removed lines

@@ -17,70 +17,70 @@
  */
 class UTCTime extends BaseTime
 {
-    use UniversalClass;
-    use PrimitiveType;
+	use UniversalClass;
+	use PrimitiveType;
 
-    /**
-     * Regular expression to parse date.
-     *
-     * DER restricts format to UTC timezone (Z suffix).
-     *
-     * @var string
-     */
-    const REGEX = '#^' .
-        '(\d\d)' . // YY
-        '(\d\d)' . // MM
-        '(\d\d)' . // DD
-        '(\d\d)' . // hh
-        '(\d\d)' . // mm
-        '(\d\d)' . // ss
-        'Z' . // TZ
-        '$#';
+	/**
+	 * Regular expression to parse date.
+	 *
+	 * DER restricts format to UTC timezone (Z suffix).
+	 *
+	 * @var string
+	 */
+	const REGEX = '#^' .
+		'(\d\d)' . // YY
+		'(\d\d)' . // MM
+		'(\d\d)' . // DD
+		'(\d\d)' . // hh
+		'(\d\d)' . // mm
+		'(\d\d)' . // ss
+		'Z' . // TZ
+		'$#';
 
-    /**
-     * Constructor.
-     *
-     * @param \DateTimeImmutable $dt
-     */
-    public function __construct(\DateTimeImmutable $dt)
-    {
-        $this->_typeTag = self::TYPE_UTC_TIME;
-        parent::__construct($dt);
-    }
+	/**
+	 * Constructor.
+	 *
+	 * @param \DateTimeImmutable $dt
+	 */
+	public function __construct(\DateTimeImmutable $dt)
+	{
+		$this->_typeTag = self::TYPE_UTC_TIME;
+		parent::__construct($dt);
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    protected function _encodedContentDER(): string
-    {
-        $dt = $this->_dateTime->setTimezone(self::_createTimeZone(self::TZ_UTC));
-        return $dt->format('ymdHis\\Z');
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	protected function _encodedContentDER(): string
+	{
+		$dt = $this->_dateTime->setTimezone(self::_createTimeZone(self::TZ_UTC));
+		return $dt->format('ymdHis\\Z');
+	}
 
-    /**
-     * {@inheritdoc}
-     */
-    protected static function _decodeFromDER(Identifier $identifier,
-        string $data, int &$offset): ElementBase
-    {
-        $idx = $offset;
-        $length = Length::expectFromDER($data, $idx)->intLength();
-        $str = substr($data, $idx, $length);
-        $idx += $length;
-        /** @var string[] $match */
-        if (!preg_match(self::REGEX, $str, $match)) {
-            throw new DecodeException('Invalid UTCTime format.');
-        }
-        [, $year, $month, $day, $hour, $minute, $second] = $match;
-        $time = $year . $month . $day . $hour . $minute . $second . self::TZ_UTC;
-        $dt = \DateTimeImmutable::createFromFormat('!ymdHisT', $time,
-            self::_createTimeZone(self::TZ_UTC));
-        if (!$dt) {
-            throw new DecodeException(
-                'Failed to decode UTCTime: ' .
-                self::_getLastDateTimeImmutableErrorsStr());
-        }
-        $offset = $idx;
-        return new self($dt);
-    }
+	/**
+	 * {@inheritdoc}
+	 */
+	protected static function _decodeFromDER(Identifier $identifier,
+		string $data, int &$offset): ElementBase
+	{
+		$idx = $offset;
+		$length = Length::expectFromDER($data, $idx)->intLength();
+		$str = substr($data, $idx, $length);
+		$idx += $length;
+		/** @var string[] $match */
+		if (!preg_match(self::REGEX, $str, $match)) {
+			throw new DecodeException('Invalid UTCTime format.');
+		}
+		[, $year, $month, $day, $hour, $minute, $second] = $match;
+		$time = $year . $month . $day . $hour . $minute . $second . self::TZ_UTC;
+		$dt = \DateTimeImmutable::createFromFormat('!ymdHisT', $time,
+			self::_createTimeZone(self::TZ_UTC));
+		if (!$dt) {
+			throw new DecodeException(
+				'Failed to decode UTCTime: ' .
+				self::_getLastDateTimeImmutableErrorsStr());
+		}
+		$offset = $idx;
+		return new self($dt);
+	}
 }