ObjFW  Changes On Branch asn1

include ../extra.mk

SUBDIRS = ${RUNTIME} exceptions encodings forwarding
SUBDIRS_AFTER = ${BRIDGE} ${TLS} test
DISTCLEAN = Info.plist objfw-defs.h

SHARED_LIB = ${OBJFW_SHARED_LIB}
STATIC_LIB = ${OBJFW_STATIC_LIB}
FRAMEWORK = ${OBJFW_FRAMEWORK}
LIB_MAJOR = ${OBJFW_LIB_MAJOR}
LIB_MINOR = ${OBJFW_LIB_MINOR}
LIB_PATCH = ${OBJFW_LIB_PATCH}

SRCS = OFASN1BitString.m		\
       OFASN1Enumerated.m		\
       OFASN1IA5String.m		\
       OFASN1NumericString.m		\
       OFASN1ObjectIdentifier.m		\
       OFASN1OctetString.m		\
       OFASN1PrintableString.m		\
       OFASN1Value.m			\
       OFApplication.m			\
       OFArray.m			\
       OFBlock.m			\
       OFCharacterSet.m			\
       OFColor.m			\
       OFConstantString.m		\
       OFCountedSet.m			\
       OFData.m				\
       OFData+ASN1DERParsing.m		\
       OFData+CryptographicHashing.m	\
       OFData+MessagePackParsing.m	\
       OFDate.m				\
       OFDictionary.m			\
       OFEnumerator.m			\
       OFFileManager.m			\
       OFGZIPStream.m			\

INCLUDES_ATOMIC = OFAtomic.h			\
		  platform/GCC4/OFAtomic.h	\
		  platform/GCC4.7/OFAtomic.h	\
		  platform/PowerPC/OFAtomic.h	\
		  platform/macOS/OFAtomic.h	\
		  platform/x86/OFAtomic.h
INCLUDES := ${SRCS:.m=.h}			\
	    OFASN1DERRepresentation.h		\
	    OFArchiveEntry.h			\
	    OFCollection.h			\
	    OFCryptographicHash.h		\
	    OFJSONRepresentation.h		\
	    OFKernelEventObserver.h		\
	    OFKeyValueCoding.h			\
	    OFLocking.h				\

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFObject.h"
#import "OFASN1DERRepresentation.h"
#import "OFASN1Value.h"

OF_ASSUME_NONNULL_BEGIN

@class OFData;

/**
 * @brief An ASN.1 BitString.
 */
OF_SUBCLASSING_RESTRICTED
@interface OFASN1BitString: OFObject <OFASN1DERRepresentation>
{
	OFData *_bitStringValue;
	size_t _bitStringLength;
}

/**
 * @brief The BitString value.
 */
@property (readonly, nonatomic) OFData *bitStringValue;

/**
 * @brief The length of the BitString in bits.
 */
@property (readonly, nonatomic) size_t bitStringLength;

/**
 * @brief Creates an ASN.1 BitString with the specified BitString value and
 *	  length.
 *
 * @param bitString The value of the BitString
 * @param length The length of the BitString in bits
 * @return A new, autoreleased OFASN1BitString
 */
+ (instancetype)bitStringWithBitString: (OFData *)bitString
				length: (size_t)length;

- (instancetype)init OF_UNAVAILABLE;

/**
 * @brief Initializes an already allocated ASN.1 BitString with the specified
 *	  BitString value and length.
 *
 * @param bitString The value of the BitString
 * @param length The length of the BitString in bits
 * @return An initialized OFASN1BitString
 */
- (instancetype)initWithBitString: (OFData *)bitString
			   length: (size_t)length OF_DESIGNATED_INITIALIZER;

/**
 * @brief Initializes an already allocated ASN.1 BitString with the specified
 *	  arguments.
 *
 * @param tagClass The tag class of the value's type
 * @param tagNumber The tag number of the value's type
 * @param constructed Whether the value if of a constructed type
 * @param DEREncodedContents The DER-encoded contents octets of the value.
 * @return An initialized OFASN1BitString
 */
- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "OFASN1BitString.h"
#import "OFData.h"
#import "OFString.h"

#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFOutOfRangeException.h"

@implementation OFASN1BitString
@synthesize bitStringValue = _bitStringValue;
@synthesize bitStringLength = _bitStringLength;

+ (instancetype)bitStringWithBitString: (OFData *)bitString
				length: (size_t)length
{
	return [[[self alloc] initWithBitString: bitString
					 length: length] autorelease];
}

- (instancetype)initWithBitString: (OFData *)bitString length: (size_t)length
{
	self = [super init];

	@try {
		if (bitString.count * bitString.itemSize !=
		    OFRoundUpToPowerOf2(8, length) / 8)
			@throw [OFInvalidFormatException exception];

		_bitStringValue = [bitString copy];
		_bitStringLength = length;
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	void *pool = objc_autoreleasePoolPush();
	OFData *bitString;
	size_t length;

	@try {
		unsigned char unusedBits;
		size_t count = DEREncodedContents.count;

		if (tagClass != OFASN1TagClassUniversal ||
		    tagNumber != OFASN1TagNumberBitString || constructed)
			@throw [OFInvalidArgumentException exception];

		if (DEREncodedContents.itemSize != 1 || count == 0)
			@throw [OFInvalidFormatException exception];

		unusedBits =
		    *(unsigned char *)[DEREncodedContents itemAtIndex: 0];

		if (unusedBits > 7)
			@throw [OFInvalidFormatException exception];

		/*
		 * Can't have any bits of the last byte unused if we have no
		 * byte.
		 */
		if (count == 1 && unusedBits != 0)
			@throw [OFInvalidFormatException exception];

		if (SIZE_MAX / 8 < count - 1)
			@throw [OFOutOfRangeException exception];

		length = (count - 1) * 8;
		bitString = [DEREncodedContents subdataWithRange:
		    OFMakeRange(1, count - 1)];

		if (unusedBits != 0)
			length -= unusedBits;
	} @catch (id e) {
		[self release];
		@throw e;
	}

	self = [self initWithBitString: bitString length: length];

	objc_autoreleasePoolPop(pool);

	return self;
}

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (void)dealloc
{
	[_bitStringValue release];

	[super dealloc];
}

- (OFData *)ASN1DERRepresentation
{
	size_t bitStringValueCount = _bitStringValue.count;
	size_t roundedUpLength = OFRoundUpToPowerOf2(8, _bitStringLength);
	unsigned char unusedBits = roundedUpLength - _bitStringLength;
	unsigned char header[] = {
		OFASN1TagNumberBitString,
		bitStringValueCount + 1,
		unusedBits
	};
	OFMutableData *data;

	if (bitStringValueCount + 1 > UINT8_MAX ||
	    bitStringValueCount != roundedUpLength / 8)
		@throw [OFInvalidFormatException exception];

	data = [OFMutableData
	    dataWithCapacity: sizeof(header) + bitStringValueCount];
	[data addItems: header count: sizeof(header)];
	[data addItems: _bitStringValue.items count: bitStringValueCount];

	[data makeImmutable];

	return data;
}

- (bool)isEqual: (id)object
{
	OFASN1BitString *bitString;

	if (object == self)
		return true;

	if (![object isKindOfClass: [OFASN1BitString class]])
		return false;

	bitString = object;

	if (![bitString->_bitStringValue isEqual: _bitStringValue])
		return false;
	if (bitString->_bitStringLength != _bitStringLength)
		return false;

	return true;
}

- (unsigned long)hash
{
	return _bitStringValue.hash + (unsigned long)_bitStringLength;
}

- (OFString *)description
{
	return [OFString stringWithFormat: @"<OFASN1BitString: %@ (%zu bits)>",
					   _bitStringValue, _bitStringLength];
}
@end

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFObject.h"

OF_ASSUME_NONNULL_BEGIN

@class OFData;

/**
 * @protocol OFASN1DERRepresentation \
 *	     OFASN1DERRepresentation.h ObjFW/OFASN1DERRepresentation.h
 *
 * @brief A protocol implemented by classes that support encoding to ASN.1 DER
 *	  representation.
 */
@protocol OFASN1DERRepresentation
/**
 * @brief The object in ASN.1 DER representation.
 */
@property (readonly, nonatomic) OFData *ASN1DERRepresentation;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFObject.h"
#import "OFASN1Value.h"

OF_ASSUME_NONNULL_BEGIN

/**
 * @brief An ASN.1 Enumerated.
 */
OF_SUBCLASSING_RESTRICTED
@interface OFASN1Enumerated: OFObject
{
	long long _longLongValue;
}

/**
 * @brief The integer value.
 */
@property (readonly, nonatomic) long long longLongValue;

/**
 * @brief Creates an ASN.1 Enumerated with the specified integer value.
 *
 * @param value The `long long` value of the Enumerated
 * @return A new, autoreleased OFASN1Enumerated
 */
+ (instancetype)enumeratedWithLongLong: (long long)value;

- (instancetype)init OF_UNAVAILABLE;

/**
 * @brief Initializes an already allocated ASN.1 Enumerated with the specified
 *	  integer value.
 *
 * @param value The `long long` value of the Enumerated
 * @return An initialized OFASN1Enumerated
 */
- (instancetype)initWithLongLong: (long long)value OF_DESIGNATED_INITIALIZER;

/**
 * @brief Initializes an already allocated ASN.1 Enumerated with the specified
 *	  arguments.
 *
 * @param tagClass The tag class of the value's type
 * @param tagNumber The tag number of the value's type
 * @param constructed Whether the value if of a constructed type
 * @param DEREncodedContents The DER-encoded contents octets of the value.
 * @return An initialized OFASN1Enumerated
 */
- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "OFASN1Enumerated.h"
#import "OFData.h"
#import "OFString.h"

#import "OFInvalidArgumentException.h"

extern long long OFASN1DERIntegerParse(const unsigned char *buffer,
    size_t length);

@implementation OFASN1Enumerated
@synthesize longLongValue = _longLongValue;

+ (instancetype)enumeratedWithLongLong: (long long)value
{
	return [[[self alloc] initWithLongLong: value] autorelease];
}

- (instancetype)initWithLongLong: (long long)value
{
	self = [super init];

	_longLongValue = value;

	return self;
}

- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	long long value;

	@try {
		if (tagClass != OFASN1TagClassUniversal ||
		    tagNumber != OFASN1TagNumberEnumerated || constructed)
			@throw [OFInvalidArgumentException exception];

		if (DEREncodedContents.itemSize != 1)
			@throw [OFInvalidArgumentException exception];

		value = OFASN1DERIntegerParse(
		    DEREncodedContents.items, DEREncodedContents.count);
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return [self initWithLongLong: value];
}

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (bool)isEqual: (id)object
{
	OFASN1Enumerated *enumerated;

	if (object == self)
		return true;

	if (![object isKindOfClass: [OFASN1Enumerated class]])
		return false;

	enumerated = object;

	if (enumerated->_longLongValue != _longLongValue)
		return false;

	return true;
}

- (unsigned long)hash
{
	return (unsigned long)_longLongValue;
}

- (OFString *)description
{
	return [OFString stringWithFormat: @"<OFASN1Enumerated: %lld>",
					   _longLongValue];
}
@end

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFObject.h"
#import "OFASN1Value.h"

OF_ASSUME_NONNULL_BEGIN

@class OFString;

/**
 * @brief An ASN.1 IA5String.
 */
OF_SUBCLASSING_RESTRICTED
@interface OFASN1IA5String: OFObject
{
	OFString *_IA5StringValue;
}

/**
 * @brief The IA5String value.
 */
@property (readonly, nonatomic) OFString *IA5StringValue;

/**
 * @brief The string value.
 */
@property (readonly, nonatomic) OFString *stringValue;

/**
 * @brief Creates an IA5String with the specified string value.
 *
 * @param string The string value of the IA5String
 * @return A new, autoreleased OFASN1IA5String
 */
+ (instancetype)stringWithString: (OFString *)string;

- (instancetype)init OF_UNAVAILABLE;

/**
 * @brief Initializes an already allocated IA5String with the specified string
 *	  value.
 *
 * @param string The string value of the IA5String
 * @return An initialized OFASN1IA5String
 */
- (instancetype)initWithString: (OFString *)string OF_DESIGNATED_INITIALIZER;

/**
 * @brief Initializes an already allocated ASN.1 IA5String with the specified
 *	  arguments.
 *
 * @param tagClass The tag class of the value's type
 * @param tagNumber The tag number of the value's type
 * @param constructed Whether the value if of a constructed type
 * @param DEREncodedContents The DER-encoded contents octets of the value.
 * @return An initialized OFASN1IA5String
 */
- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "OFASN1IA5String.h"
#import "OFData.h"
#import "OFString.h"

#import "OFInvalidArgumentException.h"

@implementation OFASN1IA5String
@synthesize IA5StringValue = _IA5StringValue;

+ (instancetype)stringWithString: (OFString *)string
{
	return [[[self alloc] initWithString: string] autorelease];
}

- (instancetype)initWithString: (OFString *)string
{
	self = [super init];

	@try {
		_IA5StringValue = [string copy];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	void *pool = objc_autoreleasePoolPush();
	OFString *IA5String;

	@try {
		if (tagClass != OFASN1TagClassUniversal ||
		    tagNumber != OFASN1TagNumberIA5String || constructed)
			@throw [OFInvalidArgumentException exception];

		if (DEREncodedContents.itemSize != 1)
			@throw [OFInvalidArgumentException exception];

		IA5String= [OFString
		    stringWithCString: DEREncodedContents.items
			     encoding: OFStringEncodingASCII
			       length: DEREncodedContents.count];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	self = [self initWithString: IA5String];

	objc_autoreleasePoolPop(pool);

	return self;
}

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (void)dealloc
{
	[_IA5StringValue release];

	[super dealloc];
}

- (OFString *)stringValue
{
	return self.IA5StringValue;
}

- (bool)isEqual: (id)object
{
	OFASN1IA5String *IA5String;

	if (object == self)
		return true;

	if (![object isKindOfClass: [OFASN1IA5String class]])
		return false;

	IA5String = object;

	if (![IA5String->_IA5StringValue isEqual: _IA5StringValue])
		return false;

	return true;
}

- (unsigned long)hash
{
	return _IA5StringValue.hash;
}

- (OFString *)description
{
	return [OFString stringWithFormat: @"<OFASN1IA5String: %@>",
					   _IA5StringValue];
}
@end

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFObject.h"
#import "OFASN1Value.h"

OF_ASSUME_NONNULL_BEGIN

@class OFString;

/**
 * @brief An ASN.1 NumericString.
 */
OF_SUBCLASSING_RESTRICTED
@interface OFASN1NumericString: OFObject
{
	OFString *_numericStringValue;
}

/**
 * @brief The NumericString value.
 */
@property (readonly, nonatomic) OFString *numericStringValue;

/**
 * @brief The string value.
 */
@property (readonly, nonatomic) OFString *stringValue;

/**
 * @brief Creates an NumericString with the specified string value.
 *
 * @param string The string value of the NumericString
 * @return A new, autoreleased OFASN1NumericString
 */
+ (instancetype)stringWithString: (OFString *)string;

- (instancetype)init OF_UNAVAILABLE;

/**
 * @brief Initializes an already allocated NumericString with the specified
 *	  string value.
 *
 * @param string The string value of the NumericString
 * @return An initialized OFASN1NumericString
 */
- (instancetype)initWithString: (OFString *)string OF_DESIGNATED_INITIALIZER;

/**
 * @brief Initializes an already allocated ASN.1 NumericString with the
 *	  specified arguments.
 *
 * @param tagClass The tag class of the value's type
 * @param tagNumber The tag number of the value's type
 * @param constructed Whether the value if of a constructed type
 * @param DEREncodedContents The DER-encoded contents octets of the value.
 * @return An initialized ASN.1 NumericString
 */
- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "OFASN1NumericString.h"
#import "OFData.h"
#import "OFString.h"

#import "OFInvalidArgumentException.h"
#import "OFInvalidEncodingException.h"

@implementation OFASN1NumericString
@synthesize numericStringValue = _numericStringValue;

+ (instancetype)stringWithString: (OFString *)string
{
	return [[[self alloc] initWithString: string] autorelease];
}

- (instancetype)initWithString: (OFString *)string
{
	self = [super init];

	@try {
		void *pool = objc_autoreleasePoolPush();
		const char *cString = string.UTF8String;
		size_t length = string.UTF8StringLength;

		for (size_t i = 0; i < length; i++)
			if (!OFASCIIIsDigit(cString[i]) && cString[i] != ' ')
				@throw [OFInvalidEncodingException exception];

		_numericStringValue = [string copy];

		objc_autoreleasePoolPop(pool);
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	void *pool = objc_autoreleasePoolPush();
	OFString *numericString;

	@try {
		if (tagClass != OFASN1TagClassUniversal ||
		    tagNumber != OFASN1TagNumberNumericString || constructed)
			@throw [OFInvalidArgumentException exception];

		if (DEREncodedContents.itemSize != 1)
			@throw [OFInvalidArgumentException exception];

		numericString = [OFString
		    stringWithCString: DEREncodedContents.items
			     encoding: OFStringEncodingASCII
			       length: DEREncodedContents.count];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	self = [self initWithString: numericString];

	objc_autoreleasePoolPop(pool);

	return self;
}

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (void)dealloc
{
	[_numericStringValue release];

	[super dealloc];
}

- (OFString *)stringValue
{
	return self.numericStringValue;
}

- (bool)isEqual: (id)object
{
	OFASN1NumericString *numericString;

	if (object == self)
		return true;

	if (![object isKindOfClass: [OFASN1NumericString class]])
		return false;

	numericString = object;

	if (![numericString->_numericStringValue isEqual: _numericStringValue])
		return false;

	return true;
}

- (unsigned long)hash
{
	return _numericStringValue.hash;
}

- (OFString *)description
{
	return [OFString stringWithFormat: @"<OFASN1NumericString: %@>",
					   _numericStringValue];
}
@end

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFObject.h"
#import "OFASN1Value.h"

OF_ASSUME_NONNULL_BEGIN

@class OFArray OF_GENERIC(ObjetType);
@class OFNumber;

/**
 * @brief An ASN.1 ObjectIdentifier.
 */
OF_SUBCLASSING_RESTRICTED
@interface OFASN1ObjectIdentifier: OFObject
{
	OFArray OF_GENERIC(OFNumber *) *_subidentifiers;
}

/**
 * @brief The subidentifiers of the ObjectIdentifier.
 */
@property (readonly, nonatomic) OFArray OF_GENERIC(OFNumber *) *subidentifiers;

/**
 * @brief Creates an ASN.1 ObjectIdentifier with the specified subidentifiers.
 *
 * @param subidentifiers The subidentifiers of the ASN.1 ObjectIdentifier
 * @return A new, autoreleased OFASN1ObjectIdentifier
 */
+ (instancetype)objectIdentifierWithSubidentifiers:
    (OFArray OF_GENERIC(OFNumber *) *)subidentifiers;

- (instancetype)init OF_UNAVAILABLE;

/**
 * @brief Initializes an already allocated ASN.1 ObjectIdentifier with the
 *	  specified subidentifiers.
 *
 * @param subidentifiers The subidentifiers of the ASN.1 ObjectIdentifier
 * @return An initialized OFASN1ObjectIdentifier
 */
- (instancetype)initWithSubidentifiers:
    (OFArray OF_GENERIC(OFNumber *) *)subidentifiers OF_DESIGNATED_INITIALIZER;

/**
 * @brief Initializes an already allocated ASN.1 ObjectIdentifier with the
 *	  specified arguments.
 *
 * @param tagClass The tag class of the value's type
 * @param tagNumber The tag number of the value's type
 * @param constructed Whether the value if of a constructed type
 * @param DEREncodedContents The DER-encoded contents octets of the value.
 * @return An initialized OFASN1ObjectIdentifier
 */
- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "OFASN1ObjectIdentifier.h"
#import "OFArray.h"
#import "OFData.h"
#import "OFNumber.h"
#import "OFString.h"

#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFOutOfRangeException.h"

@implementation OFASN1ObjectIdentifier
@synthesize subidentifiers = _subidentifiers;

+ (instancetype)objectIdentifierWithSubidentifiers:
    (OFArray OF_GENERIC(OFNumber *) *)subidentifiers
{
	return [[[self alloc]
	    initWithSubidentifiers: subidentifiers] autorelease];
}

- (instancetype)initWithSubidentifiers:
    (OFArray OF_GENERIC(OFNumber *) *)subidentifiers
{
	self = [super init];

	@try {
		if (subidentifiers.count < 1)
			@throw [OFInvalidFormatException exception];

		switch ([[subidentifiers objectAtIndex: 0] longLongValue]) {
		case 0:
		case 1:
		case 2:
			break;
		default:
			@throw [OFInvalidFormatException exception];
		}

		_subidentifiers = [subidentifiers copy];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	void *pool = objc_autoreleasePoolPush();
	OFMutableArray OF_GENERIC(OFNumber *) *subidentifiers;

	@try {
		const unsigned char *items = DEREncodedContents.items;
		size_t count = DEREncodedContents.count;
		unsigned long long value = 0;
		uint_fast8_t bits = 0;

		if (tagClass != OFASN1TagClassUniversal ||
		    tagNumber != OFASN1TagNumberObjectIdentifier || constructed)
			@throw [OFInvalidArgumentException exception];

		if (DEREncodedContents.itemSize != 1 || count == 0)
			@throw [OFInvalidArgumentException exception];

		subidentifiers = [OFMutableArray array];

		for (size_t i = 0; i < count; i++) {
			if (bits == 0 && items[i] == 0x80)
				@throw [OFInvalidFormatException exception];

			value = (value << 7) | (items[i] & 0x7F);
			bits += 7;

			if (bits > sizeof(unsigned long long) * 8)
				@throw [OFOutOfRangeException exception];

			if (items[i] & 0x80)
				continue;

			if (subidentifiers.count == 0) {
				if (value < 40)
					[subidentifiers addObject:
					    [OFNumber numberWithInt: 0]];
				else if (value < 80) {
					[subidentifiers addObject:
					    [OFNumber numberWithInt: 1]];
					value -= 40;
				} else {
					[subidentifiers addObject:
					    [OFNumber numberWithInt: 2]];
					value -= 80;
				}
			}

			[subidentifiers addObject:
			    [OFNumber numberWithUnsignedLongLong: value]];

			value = 0;
			bits = 0;
		}

		if (items[count - 1] & 0x80)
			@throw [OFInvalidFormatException exception];

		[subidentifiers makeImmutable];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	self = [self initWithSubidentifiers: subidentifiers];

	objc_autoreleasePoolPop(pool);

	return self;
}

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (void)dealloc
{
	[_subidentifiers release];

	[super dealloc];
}

- (bool)isEqual: (id)object
{
	OFASN1ObjectIdentifier *objectIdentifier;

	if (object == self)
		return true;

	if (![object isKindOfClass: [OFASN1ObjectIdentifier class]])
		return false;

	objectIdentifier = object;

	if (![objectIdentifier->_subidentifiers isEqual: _subidentifiers])
		return false;

	return true;
}

- (unsigned long)hash
{
	return _subidentifiers.hash;
}

- (OFString *)description
{
	return [OFString stringWithFormat:
	    @"<OFASN1ObjectIdentifier: %@>",
	    [_subidentifiers componentsJoinedByString: @"."]];
}
@end

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFObject.h"
#import "OFASN1Value.h"

OF_ASSUME_NONNULL_BEGIN

@class OFData;

/**
 * @brief An ASN.1 OctetString.
 */
OF_SUBCLASSING_RESTRICTED
@interface OFASN1OctetString: OFObject
{
	OFData *_octetStringValue;
}

/**
 * @brief The OctetString value.
 */
@property (readonly, nonatomic) OFData *octetStringValue;

/**
 * @brief Creates an OctetString with the specified value.
 *
 * @param octetString The OctetString value
 * @return A new, autoreleased OFASN1OctetString
 */
+ (instancetype)octetStringWithOctetString: (OFData *)octetString;

- (instancetype)init OF_UNAVAILABLE;

/**
 * @brief Initializes an already allocated OctetString with the specified
 *	  value.
 *
 * @param octetString The OctetString value
 * @return An initialized OFASN1OctetString
 */
- (instancetype)initWithOctetString: (OFData *)octetString
    OF_DESIGNATED_INITIALIZER;

/**
 * @brief Initializes an already allocated ASN.1 OctetString with the specified
 *	  arguments.
 *
 * @param tagClass The tag class of the value's type
 * @param tagNumber The tag number of the value's type
 * @param constructed Whether the value if of a constructed type
 * @param DEREncodedContents The DER-encoded contents octets of the value.
 * @return An initialized ASN.1 OctetString
 */
- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "OFASN1OctetString.h"
#import "OFData.h"
#import "OFString.h"

#import "OFInvalidArgumentException.h"

@implementation OFASN1OctetString
@synthesize octetStringValue = _octetStringValue;

+ (instancetype)octetStringWithOctetString: (OFData *)octetString
{
	return [[[self alloc] initWithOctetString: octetString] autorelease];
}

- (instancetype)initWithOctetString: (OFData *)octetString
{
	self = [super init];

	@try {
		_octetStringValue = [octetString copy];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	@try {
		if (tagClass != OFASN1TagClassUniversal ||
		    tagNumber != OFASN1TagNumberOctetString || constructed)
			@throw [OFInvalidArgumentException exception];

		if (DEREncodedContents.itemSize != 1)
			@throw [OFInvalidArgumentException exception];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return [self initWithOctetString: DEREncodedContents];
}

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (void)dealloc
{
	[_octetStringValue release];

	[super dealloc];
}

- (bool)isEqual: (id)object
{
	OFASN1OctetString *octetString;

	if (object == self)
		return true;

	if (![object isKindOfClass: [OFASN1OctetString class]])
		return false;

	octetString = object;

	if (![octetString->_octetStringValue isEqual: _octetStringValue])
		return false;

	return true;
}

- (unsigned long)hash
{
	return _octetStringValue.hash;
}

- (OFString *)description
{
	return [OFString stringWithFormat: @"<OFASN1OctetString: %@>",
					   _octetStringValue];
}
@end

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFObject.h"
#import "OFASN1Value.h"

OF_ASSUME_NONNULL_BEGIN

@class OFString;

/**
 * @brief An ASN.1 PrintableString.
 */
OF_SUBCLASSING_RESTRICTED
@interface OFASN1PrintableString: OFObject
{
	OFString *_printableStringValue;
}

/**
 * @brief The PrintableString value.
 */
@property (readonly, nonatomic) OFString *printableStringValue;

/**
 * @brief The string value.
 */
@property (readonly, nonatomic) OFString *stringValue;

/**
 * @brief Creates a PrintableString with the specified string value.
 *
 * @param string The string value of the PrintableString
 * @return A new, autoreleased OFASN1PrintableString
 */
+ (instancetype)stringWithString: (OFString *)string;

- (instancetype)init OF_UNAVAILABLE;

/**
 * @brief Initializes an already allocated PrintableString with the specified
 *	  string value.
 *
 * @param string The string value of the PrintableString
 * @return An initialized OFASN1PrintableString
 */
- (instancetype)initWithString: (OFString *)string OF_DESIGNATED_INITIALIZER;

/**
 * @brief Initializes an already allocated ASN.1 PrintableString with the
 *	  specified arguments.
 *
 * @param tagClass The tag class of the value's type
 * @param tagNumber The tag number of the value's type
 * @param constructed Whether the value if of a constructed type
 * @param DEREncodedContents The DER-encoded contents octets of the value.
 * @return An initialized OFASN1PrintableString
 */
- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "OFASN1PrintableString.h"
#import "OFData.h"
#import "OFString.h"

#import "OFInvalidArgumentException.h"
#import "OFInvalidEncodingException.h"

@implementation OFASN1PrintableString
@synthesize printableStringValue = _printableStringValue;

+ (instancetype)stringWithString: (OFString *)string
{
	return [[[self alloc] initWithString: string] autorelease];
}

- (instancetype)initWithString: (OFString *)string
{
	self = [super init];

	@try {
		void *pool = objc_autoreleasePoolPush();
		const char *cString = string.UTF8String;
		size_t length = string.UTF8StringLength;

		for (size_t i = 0; i < length; i++) {
			if (OFASCIIIsAlnum(cString[i]))
				continue;

			switch (cString[i]) {
			case ' ':
			case '\'':
			case '(':
			case ')':
			case '+':
			case ',':
			case '-':
			case '.':
			case '/':
			case ':':
			case '=':
			case '?':
				continue;
			default:
				@throw [OFInvalidEncodingException exception];
			}
		}

		_printableStringValue = [string copy];

		objc_autoreleasePoolPop(pool);
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	void *pool = objc_autoreleasePoolPush();
	OFString *printableString;

	@try {
		if (tagClass != OFASN1TagClassUniversal ||
		    tagNumber != OFASN1TagNumberPrintableString || constructed)
			@throw [OFInvalidArgumentException exception];

		if (DEREncodedContents.itemSize != 1)
			@throw [OFInvalidArgumentException exception];

		printableString = [OFString
		    stringWithCString: DEREncodedContents.items
			     encoding: OFStringEncodingASCII
			       length: DEREncodedContents.count];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	self = [self initWithString: printableString];

	objc_autoreleasePoolPop(pool);

	return self;
}

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (void)dealloc
{
	[_printableStringValue release];

	[super dealloc];
}

- (OFString *)stringValue
{
	return self.printableStringValue;
}

- (bool)isEqual: (id)object
{
	OFASN1PrintableString *printableString;

	if (object == self)
		return true;

	if (![object isKindOfClass: [OFASN1PrintableString class]])
		return false;

	printableString = object;

	if (![printableString->_printableStringValue isEqual:
	    _printableStringValue])
		return false;

	return true;
}

- (unsigned long)hash
{
	return _printableStringValue.hash;
}

- (OFString *)description
{
	return [OFString stringWithFormat: @"<OFASN1PrintableString: %@>",
					   _printableStringValue];
}
@end

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFObject.h"

OF_ASSUME_NONNULL_BEGIN

/** @file */

@class OFData;

/**
 * @brief ASN.1 tag class.
 */
typedef enum {
	/** Universal */
	OFASN1TagClassUniversal	      = 0x0,
	/** Application */
	OFASN1TagClassApplication     = 0x1,
	/** Context specific */
	OFASN1TagClassContextSpecific = 0x2,
	/** Private */
	OFASN1TagClassPrivate	      = 0x3
} OFASN1TagClass;

/**
 * @brief ASN.1 tag number.
 */
typedef enum {
	/** Boolean */
	OFASN1TagNumberBoolean		= 0x01,
	/** Integer */
	OFASN1TagNumberInteger		= 0x02,
	/** Bit string */
	OFASN1TagNumberBitString	= 0x03,
	/** Octet string */
	OFASN1TagNumberOctetString	= 0x04,
	/** Null */
	OFASN1TagNumberNull		= 0x05,
	/** Object Identifier */
	OFASN1TagNumberObjectIdentifier	= 0x06,
	/** Enumerated */
	OFASN1TagNumberEnumerated	= 0x0A,
	/** UTF-8 string */
	OFASN1TagNumberUTF8String	= 0x0C,
	/** Sequence */
	OFASN1TagNumberSequence		= 0x10,
	/** Set */
	OFASN1TagNumberSet		= 0x11,
	/** NumericString */
	OFASN1TagNumberNumericString	= 0x12,
	/** PrintableString */
	OFASN1TagNumberPrintableString	= 0x13,
	/** IA5String */
	OFASN1TagNumberIA5String	= 0x16
} OFASN1TagNumber;

/**
 * @brief A class representing an ASN.1 value.
 */
OF_SUBCLASSING_RESTRICTED
@interface OFASN1Value: OFObject
{
	OFASN1TagClass _tagClass;
	OFASN1TagNumber _tagNumber;
	bool _constructed;
	OFData *_DEREncodedContents;
}

/**
 * @brief The tag class of the value's type.
 */
@property (readonly, nonatomic) OFASN1TagClass tagClass;

/**
 * @brief The tag number of the value's type.
 */
@property (readonly, nonatomic) OFASN1TagNumber tagNumber;

/**
 * @brief Whether the value if of a constructed type.
 */
@property (readonly, nonatomic, getter=isConstructed) bool constructed;

/**
 * @brief The DER-encoded contents octets of the value.
 */
@property (readonly, nonatomic) OFData *DEREncodedContents;

/**
 * @brief Creates a new ASN.1 value with the specified arguments.
 *
 * @param tagClass The tag class of the value's type
 * @param tagNumber The tag number of the value's type
 * @param constructed Whether the value if of a constructed type
 * @param DEREncodedContents The DER-encoded contents octets of the value.
 * @return A new ASN.1 value
 */
+ (instancetype)valueWithTagClass: (OFASN1TagClass)tagClass
			tagNumber: (OFASN1TagNumber)tagNumber
		      constructed: (bool)constructed
	       DEREncodedContents: (OFData *)DEREncodedContents;

- (instancetype)init OF_UNAVAILABLE;

/**
 * @brief Initializes an already allocated ASN.1 value with the specified
 *	  arguments.
 *
 * @param tagClass The tag class of the value's type
 * @param tagNumber The tag number of the value's type
 * @param constructed Whether the value if of a constructed type
 * @param DEREncodedContents The DER-encoded contents octets of the value.
 * @return An initialized ASN.1 value
 */
- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
    OF_DESIGNATED_INITIALIZER;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "OFASN1Value.h"
#import "OFData.h"
#import "OFString.h"

#import "OFInvalidFormatException.h"

@implementation OFASN1Value
@synthesize tagClass = _tagClass, tagNumber = _tagNumber;
@synthesize constructed = _constructed;
@synthesize DEREncodedContents = _DEREncodedContents;

+ (instancetype)valueWithTagClass: (OFASN1TagClass)tagClass
			tagNumber: (OFASN1TagNumber)tagNumber
		      constructed: (bool)constructed
	       DEREncodedContents: (OFData *)DEREncodedContents
{
	return [[[self alloc]
	      initWithTagClass: tagClass
		     tagNumber: tagNumber
		   constructed: constructed
	    DEREncodedContents: DEREncodedContents] autorelease];
}

- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	self = [super init];

	@try {
		if (DEREncodedContents.itemSize != 1)
			@throw [OFInvalidFormatException exception];

		_tagClass = tagClass;
		_tagNumber = tagNumber;
		_constructed = constructed;
		_DEREncodedContents = [DEREncodedContents copy];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (void)dealloc
{
	[_DEREncodedContents release];

	[super dealloc];
}

- (bool)isEqual: (id)object
{
	OFASN1Value *value;

	if (object == self)
		return true;

	if (![object isKindOfClass: [OFASN1Value class]])
		return false;

	value = object;

	if (value->_tagClass != _tagClass)
		return false;
	if (value->_tagNumber != _tagNumber)
		return false;
	if (value->_constructed != _constructed)
		return false;
	if (![value->_DEREncodedContents isEqual: _DEREncodedContents])
		return false;

	return true;
}

- (unsigned long)hash
{
	unsigned long hash;

	OFHashInit(&hash);

	OFHashAddByte(&hash, _tagClass & 0xFF);
	OFHashAddByte(&hash, _tagNumber & 0xFF);
	OFHashAddByte(&hash, _constructed);
	OFHashAddHash(&hash, _DEREncodedContents.hash);

	OFHashFinalize(&hash);

	return hash;
}

- (OFString *)description
{
	return [OFString stringWithFormat:
	    @"<OFASN1Value:\n"
	    @"\tTag class = %x\n"
	    @"\tTag number = %x\n"
	    @"\tConstructed = %u\n"
	    @"\tDER-encoded contents = %@\n"
	    @">",
	    _tagClass, _tagNumber, _constructed,
	    _DEREncodedContents.description];
}
@end

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFData.h"
#import "OFASN1Value.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef __cplusplus
extern "C" {
#endif
extern int _OFData_ASN1DERParsing_reference;
#ifdef __cplusplus
}
#endif

@interface OFData (ASN1DERParsing)
/**
 * @brief The data interpreted as ASN.1 in DER representation and parsed as an
 *	  object.
 *
 * This is either an OFArray (for a sequence), an OFSet (for a set) or an
 * OFASN1Value.
 */
@property (readonly, nonatomic) id objectByParsingASN1DER;

/**
 * @brief Parses the ASN.1 DER representation and returns it as an object.
 *
 * This is either an OFArray (for a sequence), an OFSet (for a set) or an
 * OFASN1Value.
 *
 * @param depthLimit The maximum depth the parser should accept (defaults to 32
 *		     if not specified, 0 means no limit (insecure!))
 * @return The ASN.1 DER representation as an object
 */
- (id)objectByParsingASN1DERWithDepthLimit: (size_t)depthLimit;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "OFData+ASN1DERParsing.h"
#import "OFASN1BitString.h"
#import "OFASN1Enumerated.h"
#import "OFASN1IA5String.h"
#import "OFASN1NumericString.h"
#import "OFASN1ObjectIdentifier.h"
#import "OFASN1OctetString.h"
#import "OFASN1PrintableString.h"
#import "OFASN1Value.h"
#import "OFArray.h"
#import "OFNull.h"
#import "OFNumber.h"
#import "OFSet.h"
#import "OFString.h"

#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFOutOfRangeException.h"
#import "OFTruncatedDataException.h"

enum {
	tagConstructedMask = 0x20
};

int _OFData_ASN1DERParsing_reference;

static size_t parseObject(OFData *self, id *object, size_t depthLimit);

long long
OFASN1DERIntegerParse(const unsigned char *buffer, size_t length)
{
	unsigned long long value = 0;

	/* TODO: Support for big numbers */
	if (length > sizeof(unsigned long long) &&
	    (length != sizeof(unsigned long long) + 1 || buffer[0] != 0))
		@throw [OFOutOfRangeException exception];

	if (length >= 2 && ((buffer[0] == 0 && !(buffer[1] & 0x80)) ||
	    (buffer[0] == 0xFF && buffer[1] & 0x80)))
		@throw [OFInvalidFormatException exception];

	if (length >= 1 && buffer[0] & 0x80)
		value = ~0ull;

	while (length--)
		value = (value << 8) | *buffer++;

	return value;
}

static OFArray *
parseSequence(OFData *contents, size_t depthLimit)
{
	OFMutableArray *ret = [OFMutableArray array];
	size_t count = contents.count;

	if (depthLimit == 0)
		@throw [OFOutOfRangeException exception];

	while (count > 0) {
		id object;
		size_t objectLength;

		objectLength = parseObject(contents, &object, depthLimit);

		count -= objectLength;
		contents = [contents subdataWithRange:
		    OFMakeRange(objectLength, count)];

		[ret addObject: object];
	}

	[ret makeImmutable];

	return ret;
}

static OFSet *
parseSet(OFData *contents, size_t depthLimit)
{
	OFMutableSet *ret = [OFMutableSet set];
	size_t count = contents.count;
	OFData *previousObjectData = nil;

	if (depthLimit == 0)
		@throw [OFOutOfRangeException exception];

	while (count > 0) {
		id object;
		size_t objectLength;
		OFData *objectData;

		objectLength = parseObject(contents, &object, depthLimit);
		objectData = [contents subdataWithRange:
		    OFMakeRange(0, objectLength)];

		if (previousObjectData != nil &&
		    [objectData compare: previousObjectData] !=
		    OFOrderedDescending)
			@throw [OFInvalidFormatException exception];

		count -= objectLength;
		contents = [contents subdataWithRange:
		    OFMakeRange(objectLength, count)];

		[ret addObject: object];

		previousObjectData = objectData;
	}

	[ret makeImmutable];

	return ret;
}

static size_t
parseObject(OFData *self, id *object, size_t depthLimit)
{
	const unsigned char *items = self.items;
	size_t count = self.count;
	unsigned char tag;
	size_t contentsLength, bytesConsumed = 0;
	Class valueClass;
	OFData *contents;

	if (count < 2)
		@throw [OFTruncatedDataException exception];

	tag = *items++;
	contentsLength = *items++;
	bytesConsumed += 2;

	if (contentsLength > 127) {
		uint_fast8_t lengthLength = contentsLength & 0x7F;

		if (lengthLength > sizeof(size_t))
			@throw [OFOutOfRangeException exception];

		if (count - bytesConsumed < lengthLength)
			@throw [OFTruncatedDataException exception];

		if (lengthLength == 0 ||
		    (lengthLength == 1 && items[0] < 0x80) ||
		    (lengthLength >= 2 && items[0] == 0))
			@throw [OFInvalidFormatException exception];

		contentsLength = 0;

		for (uint_fast8_t i = 0; i < lengthLength; i++)
			contentsLength = (contentsLength << 8) | *items++;

		bytesConsumed += lengthLength;

		if (contentsLength <= 127)
			@throw [OFInvalidFormatException exception];
	}

	if (count - bytesConsumed < contentsLength)
		@throw [OFTruncatedDataException exception];

	contents = [self subdataWithRange:
	    OFMakeRange(bytesConsumed, contentsLength)];
	bytesConsumed += contentsLength;

	switch (tag & ~tagConstructedMask) {
	case OFASN1TagNumberBoolean:;
		unsigned char boolValue;

		if (tag & tagConstructedMask)
			@throw [OFInvalidFormatException exception];

		if (contents.count != 1)
			@throw [OFInvalidFormatException exception];

		boolValue = *(unsigned char *)[contents itemAtIndex: 0];

		if (boolValue != 0 && boolValue != 0xFF)
			@throw [OFInvalidFormatException exception];

		*object = [OFNumber numberWithBool: boolValue];
		return bytesConsumed;
	case OFASN1TagNumberInteger:
		if (tag & tagConstructedMask)
			@throw [OFInvalidFormatException exception];

		*object = [OFNumber numberWithLongLong:
		    OFASN1DERIntegerParse(contents.items, contents.count)];
		return bytesConsumed;
	case OFASN1TagNumberBitString:
		valueClass = [OFASN1BitString class];
		break;
	case OFASN1TagNumberOctetString:
		valueClass = [OFASN1OctetString class];
		break;
	case OFASN1TagNumberNull:
		if (tag & tagConstructedMask)
			@throw [OFInvalidFormatException exception];

		if (contents.count != 0)
			@throw [OFInvalidFormatException exception];

		*object = [OFNull null];
		return bytesConsumed;
	case OFASN1TagNumberObjectIdentifier:
		valueClass = [OFASN1ObjectIdentifier class];
		break;
	case OFASN1TagNumberEnumerated:
		valueClass = [OFASN1Enumerated class];
		break;
	case OFASN1TagNumberUTF8String:
		if (tag & tagConstructedMask)
			@throw [OFInvalidFormatException exception];

		*object = [OFString stringWithUTF8String: contents.items
						  length: contents.count];
		return bytesConsumed;
	case OFASN1TagNumberSequence:
		if (!(tag & tagConstructedMask))
			@throw [OFInvalidFormatException exception];

		*object = parseSequence(contents, depthLimit - 1);
		return bytesConsumed;
	case OFASN1TagNumberSet:
		if (!(tag & tagConstructedMask))
			@throw [OFInvalidFormatException exception];

		*object = parseSet(contents, depthLimit - 1);
		return bytesConsumed;
	case OFASN1TagNumberNumericString:
		valueClass = [OFASN1NumericString class];
		break;
	case OFASN1TagNumberPrintableString:
		valueClass = [OFASN1PrintableString class];
		break;
	case OFASN1TagNumberIA5String:
		valueClass = [OFASN1IA5String class];
		break;
	default:
		valueClass = [OFASN1Value class];
		break;
	}

	*object = [[[valueClass alloc]
	      initWithTagClass: tag >> 6
		     tagNumber: tag & 0x1F
		   constructed: tag & tagConstructedMask
	    DEREncodedContents: contents] autorelease];
	return bytesConsumed;
}

@implementation OFData (ASN1DERParsing)
- (id)objectByParsingASN1DER
{
	return [self objectByParsingASN1DERWithDepthLimit: 32];
}

- (id)objectByParsingASN1DERWithDepthLimit: (size_t)depthLimit
{
	void *pool = objc_autoreleasePoolPush();
	id object;

	if (self.itemSize != 1)
		@throw [OFInvalidArgumentException exception];

	if (parseObject(self, &object, depthLimit) != self.count)
		@throw [OFInvalidFormatException exception];

	[object retain];

	objc_autoreleasePoolPop(pool);

	return [object autorelease];
}
@end

 */
- (void)writeToIRI: (OFIRI *)IRI;
@end

OF_ASSUME_NONNULL_END

#import "OFMutableData.h"
#import "OFData+ASN1DERParsing.h"
#import "OFData+CryptographicHashing.h"
#import "OFData+MessagePackParsing.h"

@interface OFPlaceholderData: OFString
@end

/* References for static linking */
void
_references_to_categories_of_OFData(void)
{
	_OFData_ASN1DERParsing_reference = 1;
	_OFData_CryptographicHashing_reference = 1;
	_OFData_MessagePackParsing_reference = 1;
}

@implementation OFPlaceholderData
- (instancetype)init
{

 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFObject.h"
#import "OFASN1DERRepresentation.h"
#import "OFJSONRepresentation.h"
#import "OFMessagePackRepresentation.h"

OF_ASSUME_NONNULL_BEGIN

/**
 * @class OFNull OFNull.h ObjFW/OFNull.h
 *
 * @brief A class for representing null values in collections.
 */
OF_SUBCLASSING_RESTRICTED
@interface OFNull: OFObject <OFCopying, OFJSONRepresentation,
    OFMessagePackRepresentation, OFASN1DERRepresentation>
/**
 * @brief Returns an OFNull singleton.
 *
 * @return An OFNull singleton
 */
+ (OFNull *)null;
@end

OF_ASSUME_NONNULL_END

}

- (OFData *)messagePackRepresentation
{
	uint8_t type = 0xC0;
	return [OFData dataWithItems: &type count: 1];
}

- (OFData *)ASN1DERRepresentation
{
	const unsigned char bytes[] = { OFASN1TagNumberNull, 0 };
	return [OFData dataWithItems: bytes count: sizeof(bytes)];
}

OF_SINGLETON_METHODS
@end

#include "objfw-defs.h"

#ifdef OF_HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif

#import "OFASN1DERRepresentation.h"
#import "OFJSONRepresentation.h"
#import "OFMessagePackRepresentation.h"
#import "OFValue.h"

OF_ASSUME_NONNULL_BEGIN

/** @file */

/**
 * @class OFNumber OFNumber.h ObjFW/OFNumber.h
 *
 * @brief Provides a way to store a number in an object.
 */
@interface OFNumber: OFValue <OFComparing, OFASN1DERRepresentation,
    OFJSONRepresentation, OFMessagePackRepresentation>
/**
 * @brief The OFNumber as a `bool`.
 */
@property (readonly, nonatomic) bool boolValue;

/**
 * @brief The OFNumber as a `signed char`.

#import "OFConcreteNumber.h"
#import "OFData.h"
#import "OFString.h"
#import "OFTaggedPointerNumber.h"

#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFNotImplementedException.h"
#import "OFOutOfRangeException.h"

@interface OFNumber ()
- (OFString *)
    of_JSONRepresentationWithOptions: (OFJSONRepresentationOptions)options
			       depth: (size_t)depth;
@end

		return [OFString stringWithFormat: @"%lld", self.longLongValue];
	if (isUnsigned(self))
		return [OFString stringWithFormat: @"%llu",
						   self.unsignedLongLongValue];

	@throw [OFInvalidFormatException exception];
}

- (OFData *)ASN1DERRepresentation
{
	if (self.objCType[0] == 'B' && self.objCType[1] == '\0') {
		char buffer[] = {
			OFASN1TagNumberBoolean,
			1,
			(self.boolValue ? 0xFF : 0x00)
		};

		return [OFData dataWithItems: buffer count: sizeof(buffer)];
	} else
		@throw [OFNotImplementedException exceptionWithSelector: _cmd
								 object: self];
}

- (OFString *)JSONRepresentation
{
	return [self of_JSONRepresentationWithOptions: 0 depth: 0];
}

- (OFString *)JSONRepresentationWithOptions:

#import "OFRunLoop.h"

#import "OFMatrix4x4.h"

#ifdef OF_WINDOWS
# import "OFWindowsRegistryKey.h"
#endif

#import "OFASN1BitString.h"
#import "OFASN1Enumerated.h"
#import "OFASN1IA5String.h"
#import "OFASN1NumericString.h"
#import "OFASN1ObjectIdentifier.h"
#import "OFASN1OctetString.h"
#import "OFASN1PrintableString.h"
#import "OFASN1Value.h"

#import "OFAllocFailedException.h"
#import "OFAlreadyOpenException.h"
#import "OFException.h"
#import "OFChangeCurrentDirectoryFailedException.h"
#import "OFChecksumMismatchException.h"
#import "OFCopyItemFailedException.h"

	testfile_bin.m		\
	testfile_ini.m
DISTCLEAN = Info.plist

PROG_NOINST = tests${PROG_SUFFIX}
STATIC_LIB_NOINST = ${TESTS_STATIC_LIB}
SRCS = ForwardingTests.m			\
       OFASN1DERParsingTests.m			\
       OFASN1DERRepresentationTests.m		\
       OFArrayTests.m				\
       ${OF_BLOCK_TESTS_M}			\
       OFCharacterSetTests.m			\
       OFColorTests.m				\
       OFConcreteArrayTests.m			\
       OFConcreteDictionaryTests.m		\
       OFConcreteMutableArrayTests.m		\

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "ObjFW.h"
#import "ObjFWTest.h"

@interface OFASN1DERParsingTests: OTTestCase
@end

@implementation OFASN1DERParsingTests
- (void)testBoolean
{
	OTAssertFalse(
	    [[[OFData dataWithItems: "\x01\x01\x00"
			      count: 3] objectByParsingASN1DER] boolValue]);

	OTAssertTrue(
	    [[[OFData dataWithItems: "\x01\x01\xFF"
			      count: 3] objectByParsingASN1DER] boolValue]);
}

- (void)testInvalidBooleanFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x01\x01\x01"
			     count: 3] objectByParsingASN1DER],
	    OFInvalidFormatException);

	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x01\x02\x00\x00"
			     count: 4] objectByParsingASN1DER],
	    OFInvalidFormatException);

	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x01\x00"
			     count: 2] objectByParsingASN1DER],
	    OFInvalidFormatException);
}

- (void)testTruncatedBooleanFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x01\x01"
			     count: 2] objectByParsingASN1DER],
	    OFTruncatedDataException);
}

- (void)testInteger
{
	OTAssertEqual([[[OFData dataWithItems: "\x02\x00" count: 2]
	    objectByParsingASN1DER] longLongValue], 0);

	OTAssertEqual([[[OFData dataWithItems: "\x02\x01\x01" count: 3]
	    objectByParsingASN1DER] longLongValue], 1);

	OTAssertEqual([[[OFData dataWithItems: "\x02\x02\x01\x04" count: 4]
	    objectByParsingASN1DER] longLongValue], 260);

	OTAssertEqual([[[OFData dataWithItems: "\x02\x01\xFF" count: 3]
	    objectByParsingASN1DER] longLongValue], -1);

	OTAssertEqual([[[OFData dataWithItems: "\x02\x03\xFF\x00\x00" count: 5]
	    objectByParsingASN1DER] longLongValue], -65536);

	OTAssertEqual((unsigned long long)[[[OFData
	    dataWithItems: "\x02\x09\x00\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
		    count: 11] objectByParsingASN1DER] longLongValue],
	    ULLONG_MAX);
}

- (void)testInvalidIntegerFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x02\x02\x00\x00"
			     count: 4] objectByParsingASN1DER],
	    OFInvalidFormatException);

	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x02\x02\x00\x7F"
			     count: 4] objectByParsingASN1DER],
	    OFInvalidFormatException);

	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x02\x02\xFF\x80"
			     count: 4] objectByParsingASN1DER],
	    OFInvalidFormatException);
}

- (void)testOutOfRangeIntegerFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x02\x09\x01"
				    "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
			     count: 11] objectByParsingASN1DER],
	    OFOutOfRangeException);
}

- (void)testTruncatedIntegerFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x02\x02\x00"
			     count: 3] objectByParsingASN1DER],
	    OFTruncatedDataException);
}

- (void)testBitString
{
	OFASN1BitString *bitString;

	bitString = [[OFData dataWithItems: "\x03\x01\x00"
				     count: 3] objectByParsingASN1DER];
	OTAssertEqualObjects(bitString.bitStringValue, [OFData data]);
	OTAssertEqual(bitString.bitStringLength, 0);

	bitString = [[OFData dataWithItems: "\x03\x0D\x01Hello World\x80"
				     count: 15] objectByParsingASN1DER];
	OTAssertEqualObjects(bitString.bitStringValue,
	    [OFData dataWithItems: "Hello World\x80" count: 12]);
	OTAssertEqual(bitString.bitStringLength, 95);

	bitString = [[OFData dataWithItems: "\x03\x81\x80\x00xxxxxxxxxxxxxxxxxx"
					    "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
					    "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
					    "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
					    "xxxxxxx"
				     count: 131] objectByParsingASN1DER];
	OTAssertEqualObjects(bitString.bitStringValue,
	    [OFData dataWithItems: "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				   "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				   "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
			    count: 127]);
	OTAssertEqual(bitString.bitStringLength, 127 * 8);
}

- (void)testInvalidBitStringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x03\x00"
			     count: 2] objectByParsingASN1DER],
	    OFInvalidFormatException);

	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x03\x01\x01"
			     count: 3] objectByParsingASN1DER],
	    OFInvalidFormatException);
}

- (void)testOutOfRangeBitStringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x03\x89"
				    "\x01\x01\x01\x01\x01\x01\x01\x01\x01"
			     count: 11] objectByParsingASN1DER],
	    OFOutOfRangeException);
}

- (void)testTruncatedBitStringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x03\x01"
			     count: 2] objectByParsingASN1DER],
	    OFTruncatedDataException);
}

- (void)testOctetString
{
	OTAssertEqualObjects([[[OFData
	    dataWithItems: "\x04\x0CHello World!"
		    count: 14] objectByParsingASN1DER] octetStringValue],
	    [OFData dataWithItems: "Hello World!" count: 12]);

	OTAssertEqualObjects(
	    [[[OFData dataWithItems: "\x04\x81\x80xxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				     "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				     "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				     "xxxxxxxxxxxxxxxxx"
			      count: 131] objectByParsingASN1DER]
	    octetStringValue],
	    [OFData dataWithItems: "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				   "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				   "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
			    count: 128]);
}

- (void)testOutOfRangeOctetStringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x04\x89"
				    "\x01\x01\x01\x01\x01\x01\x01\x01\x01"
			     count: 11] objectByParsingASN1DER],
	    OFOutOfRangeException);
}

- (void)testTruncatedOctetStringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x04\x01"
			     count: 2] objectByParsingASN1DER],
	    OFTruncatedDataException);
}

- (void)testNull
{
	OTAssertEqualObjects([[OFData dataWithItems: "\x05\x00" count: 2]
	    objectByParsingASN1DER], [OFNull null]);
}

- (void)testInvalidNullFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x05\x01\x00"
			     count: 3] objectByParsingASN1DER],
	    OFInvalidFormatException);
}

- (void)testObjectIdentifier
{
	OFArray *array;

	array = [[[OFData dataWithItems: "\x06\x01\x27" count: 3]
	    objectByParsingASN1DER] subidentifiers];
	OTAssertEqual(array.count, 2);
	OTAssertEqual([[array objectAtIndex: 0] unsignedLongLongValue], 0);
	OTAssertEqual([[array objectAtIndex: 1] unsignedLongLongValue], 39);

	array = [[[OFData dataWithItems: "\x06\x01\x4F" count: 3]
	    objectByParsingASN1DER] subidentifiers];
	OTAssertEqual(array.count, 2);
	OTAssertEqual([[array objectAtIndex: 0] unsignedLongLongValue], 1);
	OTAssertEqual([[array objectAtIndex: 1] unsignedLongLongValue], 39);

	array = [[[OFData dataWithItems: "\x06\x02\x88\x37" count: 4]
	    objectByParsingASN1DER] subidentifiers];
	OTAssertEqual(array.count, 2);
	OTAssertEqual([[array objectAtIndex: 0] unsignedLongLongValue], 2);
	OTAssertEqual([[array objectAtIndex: 1] unsignedLongLongValue], 999);

	array = [[[OFData
	    dataWithItems: "\x06\x09\x2A\x86\x48\x86\xF7\x0D\x01\x01\x0B"
		    count: 11] objectByParsingASN1DER] subidentifiers];
	OTAssertEqual(array.count, 7);
	OTAssertEqual([[array objectAtIndex: 0] unsignedLongLongValue], 1);
	OTAssertEqual([[array objectAtIndex: 1] unsignedLongLongValue], 2);
	OTAssertEqual([[array objectAtIndex: 2] unsignedLongLongValue], 840);
	OTAssertEqual([[array objectAtIndex: 3] unsignedLongLongValue], 113549);
	OTAssertEqual([[array objectAtIndex: 4] unsignedLongLongValue], 1);
	OTAssertEqual([[array objectAtIndex: 5] unsignedLongLongValue], 1);
	OTAssertEqual([[array objectAtIndex: 6] unsignedLongLongValue], 11);
}

- (void)testInvalidObjectIdentifierFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x06\x01\x81"
			     count: 3] objectByParsingASN1DER],
	    OFInvalidFormatException);

	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x06\x02\x80\x01"
			     count: 4] objectByParsingASN1DER],
	    OFInvalidFormatException);
}

- (void)testOutOfRangeObjectIdentifier
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x06\x0A\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
				    "\xFF\x7F"
			     count: 12] objectByParsingASN1DER],
	    OFOutOfRangeException);
}

- (void)testTruncatedObjectIdentifierFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x06\x02\x00"
			     count: 3] objectByParsingASN1DER],
	    OFTruncatedDataException);
}

- (void)testEnumerated
{
	OTAssertEqual([[[OFData dataWithItems: "\x0A\x00" count: 2]
	    objectByParsingASN1DER] longLongValue], 0);

	OTAssertEqual([[[OFData dataWithItems: "\x0A\x01\x01" count: 3]
	    objectByParsingASN1DER] longLongValue], 1);

	OTAssertEqual([[[OFData dataWithItems: "\x0A\x02\x01\x04" count: 4]
	    objectByParsingASN1DER] longLongValue], 260);

	OTAssertEqual([[[OFData dataWithItems: "\x0A\x01\xFF" count: 3]
	    objectByParsingASN1DER] longLongValue], -1);

	OTAssertEqual([[[OFData dataWithItems: "\x0A\x03\xFF\x00\x00" count: 5]
	    objectByParsingASN1DER] longLongValue], -65536);

	OTAssertEqual((unsigned long long)[[[OFData
	    dataWithItems: "\x0A\x09\x00\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
		    count: 11] objectByParsingASN1DER] longLongValue],
	    ULLONG_MAX);
}

- (void)testInvalidEnumeratedFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x0A\x02\x00\x00"
			     count: 4] objectByParsingASN1DER],
	    OFInvalidFormatException);

	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x0A\x02\x00\x7F"
			     count: 4] objectByParsingASN1DER],
	    OFInvalidFormatException);

	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x0A\x02\xFF\x80"
			     count: 4] objectByParsingASN1DER],
	    OFInvalidFormatException);
}

- (void)testOutOfRangeEnumeratedFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x0A\x09\x01"
				    "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
			     count: 11] objectByParsingASN1DER],
	    OFOutOfRangeException);
}

- (void)testTruncatedEnumeratedFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x0A\x02\x00"
			     count: 3] objectByParsingASN1DER],
	    OFTruncatedDataException);
}

- (void)testUTF8String
{
	OTAssertEqualObjects(
	    [[OFData dataWithItems: "\x0C\x0EHällo Wörld!"
			     count: 16] objectByParsingASN1DER],
	    @"Hällo Wörld!");

	OTAssertEqualObjects(
	    [[OFData dataWithItems: "\x0C\x81\x80xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				    "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				    "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				    "xxxxxxxxxxxxxx"
			     count: 131] objectByParsingASN1DER],
	    @"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
	    @"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
}

- (void)testOutOfRangeUTF8StringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x0C\x89"
				    "\x01\x01\x01\x01\x01\x01\x01\x01\x01"
			     count: 11] objectByParsingASN1DER],
	    OFOutOfRangeException);
}

- (void)testTruncatedUTF8StringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x0C\x01"
			     count: 2] objectByParsingASN1DER],
	    OFTruncatedDataException);

	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x0C\x83\x01\x01"
			     count: 4] objectByParsingASN1DER],
	    OFTruncatedDataException);
}

- (void)testInvalidUTF8StringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x0C\x81\x7F"
			     count: 3] objectByParsingASN1DER],
	    OFInvalidFormatException);

	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x0C\x82\x00\x80xxxxxxxxxxxxxxxxxxxxxxxxxx"
				    "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				    "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				    "xxxxxxxxxxxxxxxxxx"
			     count: 132] objectByParsingASN1DER],
	    OFInvalidFormatException);
}

- (void)testSequence
{
	OFArray *array;

	array = [[OFData dataWithItems: "\x30\x00"
				 count: 2] objectByParsingASN1DER];
	OTAssertTrue([array isKindOfClass: [OFArray class]]);
	OTAssertEqual(array.count, 0);

	array = [[OFData dataWithItems: "\x30\x09\x02\x01\x7B\x0C\x04Test"
				 count: 11] objectByParsingASN1DER];
	OTAssertTrue([array isKindOfClass: [OFArray class]]);
	OTAssertEqual(array.count, 2);
	OTAssertEqual([[array objectAtIndex: 0] longLongValue], 123);
	OTAssertEqualObjects([array objectAtIndex: 1], @"Test");
}

- (void)testTruncatedSequenceFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x30\x01"
			     count: 2] objectByParsingASN1DER],
	    OFTruncatedDataException);

	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x30\x04\x02\x01\x01\x00\x00"
			     count: 7] objectByParsingASN1DER],
	    OFTruncatedDataException);
}
- (void)testSet
{
	OFSet *set;

	set = [[OFData dataWithItems: "\x31\x00"
			       count: 2] objectByParsingASN1DER];
	OTAssertTrue([set isKindOfClass: [OFSet class]]);
	OTAssertEqual(set.count, 0);

	set = [[OFData dataWithItems: "\x31\x09\x02\x01\x7B\x0C\x04Test"
			       count: 11] objectByParsingASN1DER];
	OTAssertTrue([set isKindOfClass: [OFSet class]]);
	OTAssertEqual(set.count, 2);

	OTAssertEqualObjects(set,
	    ([OFSet setWithObjects: [OFNumber numberWithLongLong: 123],
	    @"Test", nil]));
}

- (void)testInvalidSetFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x31\x06\x02\x01\x02\x02\x01\x01"
			     count: 8] objectByParsingASN1DER],
	    OFInvalidFormatException);
}

- (void)testTruncatedSetFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x31\x01"
			     count: 2] objectByParsingASN1DER],
	    OFTruncatedDataException);

	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x31\x04\x02\x01\x01\x00\x00"
			     count: 7] objectByParsingASN1DER],
	    OFTruncatedDataException);
}

- (void)testNumericString
{
	OTAssertEqualObjects([[[OFData
	    dataWithItems: "\x12\x0B" "12345 67890"
		    count: 13] objectByParsingASN1DER] numericStringValue],
	    @"12345 67890");

	OTAssertEqualObjects([[[OFData
	    dataWithItems: "\x12\x81\x80" "000000000000000000000000000000000000"
			   "000000000000000000000000000000000000000000000000000"
			   "00000000000000000000000000000000000000000"
		    count: 131] objectByParsingASN1DER] numericStringValue],
	    @"00000000000000000000000000000000000000000000000000000000000000000"
	    @"000000000000000000000000000000000000000000000000000000000000000");
}

- (void)testInvalidNumericStringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x12\x02."
			     count: 4] objectByParsingASN1DER],
	    OFInvalidEncodingException);
}

- (void)testOutOfRangeNumericStringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x12\x89"
				    "\x01\x01\x01\x01\x01\x01\x01\x01\x01"
			     count: 11] objectByParsingASN1DER],
	    OFOutOfRangeException);
}

- (void)testTruncatedNumericStringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x12\x01"
			     count: 2] objectByParsingASN1DER],
	    OFTruncatedDataException);
}

- (void)testPrintableString
{
	OTAssertEqualObjects([[[OFData
	    dataWithItems: "\x13\x0CHello World."
		    count: 14] objectByParsingASN1DER] printableStringValue],
	    @"Hello World.");

	OTAssertEqualObjects([[[OFData
	    dataWithItems: "\x13\x81\x80 '()+,-./:=?abcdefghijklmnopqrstuvwxyzA"
			   "BCDEFGHIJKLMNOPQRSTUVWXYZ '()+,-./:=?abcdefghijklmn"
			   "opqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
		    count: 131] objectByParsingASN1DER] printableStringValue],
	    @" '()+,-./:=?abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ "
	    @"'()+,-./:=?abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
}

- (void)testInvalidPrintableStringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x13\x02;"
			     count: 4] objectByParsingASN1DER],
	    OFInvalidEncodingException);
}

- (void)testOutOfRangePrintableStringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x13\x89"
				    "\x01\x01\x01\x01\x01\x01\x01\x01\x01"
			     count: 11] objectByParsingASN1DER],
	    OFOutOfRangeException);
}

- (void)testTruncatedPrintableStringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x13\x01"
			     count: 2] objectByParsingASN1DER],
	    OFTruncatedDataException);
}

- (void)testIA5String
{
	OTAssertEqualObjects([[[OFData
	    dataWithItems: "\x16\x0CHello World!"
		    count: 14] objectByParsingASN1DER] IA5StringValue],
	    @"Hello World!");

	OTAssertEqualObjects([[[OFData
	    dataWithItems: "\x16\x81\x80xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
			   "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
			   "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
		    count: 131] objectByParsingASN1DER] IA5StringValue],
	    @"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
	    @"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
}

- (void)testInvalidIA5StringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x16\x02ä"
			     count: 4] objectByParsingASN1DER],
	    OFInvalidEncodingException);
}

- (void)testOutOfRangeIA5StringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x16\x89"
				    "\x01\x01\x01\x01\x01\x01\x01\x01\x01"
			     count: 11] objectByParsingASN1DER],
	    OFOutOfRangeException);
}

- (void)testTruncatedIA5StringFails
{
	OTAssertThrowsSpecific(
	    [[OFData dataWithItems: "\x16\x01"
			     count: 2] objectByParsingASN1DER],
	    OFTruncatedDataException);
}
@end

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#import "ObjFW.h"
#import "ObjFWTest.h"

@interface OFASN1DERRepresentationTests: OTTestCase
@end

@implementation OFASN1DERRepresentationTests
- (void)testBitString
{
	OFData *data;

	data = [OFData dataWithItems: "\xFF\x00\xF8" count: 3];
	OTAssertEqualObjects([[OFASN1BitString
	    bitStringWithBitString: data
			    length: 21] ASN1DERRepresentation],
	    [OFData dataWithItems: "\x03\x04\x03\xFF\x00\xF8" count: 6]);

	data = [OFData dataWithItems: "abcdefäöü" count: 12];
	OTAssertEqualObjects([[OFASN1BitString
	    bitStringWithBitString: data
			    length: 12 * 8] ASN1DERRepresentation],
	    [OFData dataWithItems: "\x03\x0D\x00" "abcdefäöü" count: 15]);

	OTAssertEqualObjects([[OFASN1BitString
	    bitStringWithBitString: [OFData data]
			    length: 0] ASN1DERRepresentation],
	    [OFData dataWithItems: "\x03\x01\x00" count: 3]);
}

- (void)testInteger
{
	OTAssertEqualObjects(
	    [[OFNumber numberWithBool: false] ASN1DERRepresentation],
	    [OFData dataWithItems: "\x01\x01\x00" count: 3]);

	OTAssertEqualObjects(
	    [[OFNumber numberWithBool: true] ASN1DERRepresentation],
	    [OFData dataWithItems: "\x01\x01\xFF" count: 3]);
}

- (void)testNull
{
	OTAssertEqualObjects([[OFNull null] ASN1DERRepresentation],
	    [OFData dataWithItems: "\x05\x00" count: 2]);
}
@end