ObjFW  Check-in [d276166f70]

include ../extra.mk

SUBDIRS = ${RUNTIME} exceptions ${ENCODINGS} forwarding invocation
SUBDIRS_AFTER = ${BRIDGE}
DISTCLEAN = 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}

SRCS = OFASN1Boolean.m			\
       OFASN1Integer.m			\
       OFASN1Null.m			\
       OFASN1UTF8String.m		\
       OFASN1Value.m			\
       OFApplication.m			\
       OFArray.m			\
       OFAutoreleasePool.m		\
       OFBlock.m			\
       OFCharacterSet.m			\
       OFColor.m			\
       OFConstantString.m		\
       OFCountedSet.m			\
       OFData.m				\
       OFData+ASN1DERValue.m		\
       OFData+CryptoHashing.m		\
       OFData+MessagePackValue.m	\
       OFDate.m				\
       OFDictionary.m			\
       OFEnumerator.m			\
       OFGZIPStream.m			\
       OFHMAC.m				\

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 "OFASN1Value.h"

OF_ASSUME_NONNULL_BEGIN

/*!
 * @brief An ASN.1 boolean.
 */
@interface OFASN1Boolean: OFASN1Value
{
	bool _booleanValue;
}

/*!
 * @brief The boolean value.
 */
@property (readonly, nonatomic) bool booleanValue;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 "OFASN1Boolean.h"
#import "OFData.h"

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

@implementation OFASN1Boolean
@synthesize booleanValue = _booleanValue;

- (instancetype)initWithTagClass: (of_asn1_tag_class_t)tagClass
		       tagNumber: (of_asn1_tag_number_t)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	self = [super initWithTagClass: tagClass
			     tagNumber: tagNumber
			   constructed: constructed
		    DEREncodedContents: DEREncodedContents];

	@try {
		unsigned char value;

		if (_tagClass != OF_ASN1_TAG_CLASS_UNIVERSAL ||
		    _tagNumber != OF_ASN1_TAG_NUMBER_BOOLEAN || _constructed)
			@throw [OFInvalidArgumentException exception];

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

		value = *(unsigned char *)[_DEREncodedContents itemAtIndex: 0];

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

		_booleanValue = value;
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}
@end

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 "OFASN1Value.h"

OF_ASSUME_NONNULL_BEGIN

/*!
 * @brief An ASN.1 integer.
 */
@interface OFASN1Integer: OFASN1Value
{
	intmax_t _integerValue;
}

/*!
 * @brief The integer value.
 */
@property (readonly, nonatomic) intmax_t integerValue;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 "OFASN1Integer.h"
#import "OFData.h"

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

@implementation OFASN1Integer
@synthesize integerValue = _integerValue;

- (instancetype)initWithTagClass: (of_asn1_tag_class_t)tagClass
		       tagNumber: (of_asn1_tag_number_t)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	self = [super initWithTagClass: tagClass
			     tagNumber: tagNumber
			   constructed: constructed
		    DEREncodedContents: DEREncodedContents];

	@try {
		const unsigned char *items;
		size_t count;
		uintmax_t value;

		if (_tagClass != OF_ASN1_TAG_CLASS_UNIVERSAL ||
		    _tagNumber != OF_ASN1_TAG_NUMBER_INTEGER || _constructed)
			@throw [OFInvalidArgumentException exception];

		/* TODO: Support for big numbers */
		items = [_DEREncodedContents items];
		count = [_DEREncodedContents count];
		value = 0;

		if (count > sizeof(uintmax_t) &&
		    (count != sizeof(uintmax_t) + 1 || items[0] != 0))
			@throw [OFOutOfRangeException exception];

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

		if (count >= 1 && items[0] & 0x80)
			value = ~(uintmax_t)0;

		while (count--)
			value = (value << 8) | *items++;

		_integerValue = value;
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}
@end

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 "OFASN1Value.h"

OF_ASSUME_NONNULL_BEGIN

/*!
 * @brief An ASN.1 null value.
 */
@interface OFASN1Null: OFASN1Value
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 "OFASN1Null.h"
#import "OFData.h"

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

@implementation OFASN1Null
- (instancetype)initWithTagClass: (of_asn1_tag_class_t)tagClass
		       tagNumber: (of_asn1_tag_number_t)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	self = [super initWithTagClass: tagClass
			     tagNumber: tagNumber
			   constructed: constructed
		    DEREncodedContents: DEREncodedContents];

	@try {
		if (_tagClass != OF_ASN1_TAG_CLASS_UNIVERSAL ||
		    _tagNumber != OF_ASN1_TAG_NUMBER_NULL || _constructed)
			@throw [OFInvalidArgumentException exception];

		if ([_DEREncodedContents count] != 0)
			@throw [OFInvalidFormatException exception];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}
@end

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 "OFASN1Value.h"

OF_ASSUME_NONNULL_BEGIN

@class OFString;

/*!
 * @brief An ASN.1 UTF-8 string.
 */
@interface OFASN1UTF8String: OFASN1Value
{
	OFString *_stringValue;
}

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

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 "OFASN1UTF8String.h"
#import "OFData.h"
#import "OFString.h"

#import "OFInvalidArgumentException.h"

@implementation OFASN1UTF8String
@synthesize stringValue = _stringValue;

- (instancetype)initWithTagClass: (of_asn1_tag_class_t)tagClass
		       tagNumber: (of_asn1_tag_number_t)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	self = [super initWithTagClass: tagClass
			     tagNumber: tagNumber
			   constructed: constructed
		    DEREncodedContents: DEREncodedContents];

	@try {
		if (_tagClass != OF_ASN1_TAG_CLASS_UNIVERSAL ||
		    _tagNumber != OF_ASN1_TAG_NUMBER_UTF8_STRING ||
		    _constructed)
			@throw [OFInvalidArgumentException exception];

		_stringValue = [[OFString alloc]
		    initWithUTF8String: [_DEREncodedContents items]
				length: [_DEREncodedContents count]];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	[_stringValue release];

	[super dealloc];
}
@end

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 */
	OF_ASN1_TAG_CLASS_UNIVERSAL	   = 0x0,
	/*! Application */
	OF_ASN1_TAG_CLASS_APPLICATION	   = 0x1,
	/*! Context specific */
	OF_ASN1_TAG_CLASS_CONTEXT_SPECIFIC = 0x2,
	/*! Private */
	OF_ASN1_TAG_CLASS_PRIVATE	   = 0x3
} of_asn1_tag_class_t;

/*!
 * @brief ASN.1 tag number.
 */
typedef enum {
	/*! Boolean */
	OF_ASN1_TAG_NUMBER_BOOLEAN     = 0x01,
	/*! Integer */
	OF_ASN1_TAG_NUMBER_INTEGER     = 0x02,
	/*! Null */
	OF_ASN1_TAG_NUMBER_NULL	       = 0x05,
	/*! UTF-8 string */
	OF_ASN1_TAG_NUMBER_UTF8_STRING = 0x0C,
	/*! Sequence */
	OF_ASN1_TAG_NUMBER_SEQUENCE    = 0x10
} of_asn1_tag_number_t;

/*!
 * @brief A class representing an ASN.1 value.
 */
@interface OFASN1Value: OFObject <OFCopying>
{
	of_asn1_tag_class_t _tagClass;
	of_asn1_tag_number_t _tagNumber;
	bool _constructed;
	OFData *_DEREncodedContents;
}

/*!
 * @brief The tag class of the value's type.
 */
@property (readonly, nonatomic) of_asn1_tag_class_t tagClass;

/*!
 * @brief The tag number of the value's type.
 */
@property (readonly, nonatomic) of_asn1_tag_number_t 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: (of_asn1_tag_class_t)tagClass
			tagNumber: (of_asn1_tag_number_t)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: (of_asn1_tag_class_t)tagClass
		       tagNumber: (of_asn1_tag_number_t)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
    OF_DESIGNATED_INITIALIZER;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 "OFInvalidFormatException.h"

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

+ (instancetype)valueWithTagClass: (of_asn1_tag_class_t)tagClass
			tagNumber: (of_asn1_tag_number_t)tagNumber
		      constructed: (bool)constructed
	       DEREncodedContents: (OFData *)DEREncodedContents
{
	return [[[self alloc]
	      initWithTagClass: tagClass
		     tagNumber: tagNumber
		   constructed: constructed
	    DEREncodedContents: DEREncodedContents] autorelease];
}

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)initWithTagClass: (of_asn1_tag_class_t)tagClass
		       tagNumber: (of_asn1_tag_number_t)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;
}

- (void)dealloc
{
	[_DEREncodedContents release];

	[super dealloc];
}

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

	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;
}

- (uint32_t)hash
{
	uint32_t hash;

	OF_HASH_INIT(hash);

	OF_HASH_ADD(hash, _tagClass & 0xFF);
	OF_HASH_ADD(hash, _tagNumber & 0xFF);
	OF_HASH_ADD(hash, _constructed);
	OF_HASH_ADD_HASH(hash, [_DEREncodedContents hash]);

	OF_HASH_FINALIZE(hash);

	return hash;
}

- (id)copy
{
	return [self retain];
}
@end

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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_ASN1DERValue_reference;
#ifdef __cplusplus
}
#endif

@interface OFData (ASN1DERValue)
/*!
 * @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 ASN1DERValue;

/*!
 * @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)ASN1DERValueWithDepthLimit: (size_t)depthLimit;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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+ASN1DERValue.h"
#import "OFASN1Boolean.h"
#import "OFASN1Integer.h"
#import "OFASN1Null.h"
#import "OFASN1UTF8String.h"
#import "OFASN1Value.h"
#import "OFArray.h"

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

enum {
	ASN1_TAG_CONSTRUCTED_MASK = 0x20
};

int _OFData_ASN1DERValue_reference;

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

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

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

	ret = [OFMutableArray array];

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

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

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

		[ret addObject: object];
	}

	[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:
	    of_range(bytesConsumed, contentsLength)];
	bytesConsumed += contentsLength;

	switch (tag) {
	case OF_ASN1_TAG_NUMBER_BOOLEAN:
		valueClass = [OFASN1Boolean class];
		break;
	case OF_ASN1_TAG_NUMBER_INTEGER:
		valueClass = [OFASN1Integer class];
		break;
	case OF_ASN1_TAG_NUMBER_NULL:
		valueClass = [OFASN1Null class];
		break;
	case OF_ASN1_TAG_NUMBER_UTF8_STRING:
		valueClass = [OFASN1UTF8String class];
		break;
	case OF_ASN1_TAG_NUMBER_SEQUENCE | ASN1_TAG_CONSTRUCTED_MASK:
		*object = parseSequence(contents, depthLimit - 1);
		return bytesConsumed;
	default:
		valueClass = [OFASN1Value class];
		break;
	}

	*object = [valueClass valueWithTagClass: tag >> 6
				      tagNumber: tag & 0x1F
				    constructed: tag & ASN1_TAG_CONSTRUCTED_MASK
			     DEREncodedContents: contents];
	return bytesConsumed;
}

@implementation OFData (ASN1DERValue)
- (id)ASN1DERValue
{
	return [self ASN1DERValueWithDepthLimit: 32];
}

- (id)ASN1DERValueWithDepthLimit: (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

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

	[object retain];

	objc_autoreleasePoolPop(pool);

	return [object autorelease];
}
@end

 */
- (void)writeToURL: (OFURL *)URL;
@end

OF_ASSUME_NONNULL_END

#import "OFMutableData.h"
#import "OFData+ASN1DERValue.h"
#import "OFData+CryptoHashing.h"
#import "OFData+MessagePackValue.h"

#import "base64.h"

/* References for static linking */
void
_references_to_categories_of_OFData(void)
{
	_OFData_ASN1DERValue_reference = 1;
	_OFData_CryptoHashing_reference = 1;
	_OFData_MessagePackValue_reference = 1;
}

@implementation OFData
@synthesize itemSize = _itemSize;

PROG_NOINST = tests${PROG_SUFFIX}
STATIC_LIB_NOINST = ${TESTS_STATIC_LIB}
SRCS = ForwardingTests.m		\
       OFArrayTests.m			\
       ${OFBLOCKTESTS_M}		\
       OFCharacterSetTests.m		\
       OFDataTests.m			\
       OFDataASN1DERValueTests.m	\
       OFDateTests.m			\
       OFDictionaryTests.m		\
       OFInvocationTests.m		\
       OFJSONTests.m			\
       OFListTests.m			\
       OFLocaleTests.m			\
       OFMethodSignatureTests.m		\

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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.h"
#import "OFASN1Boolean.h"
#import "OFASN1Integer.h"
#import "OFASN1Null.h"
#import "OFASN1UTF8String.h"
#import "OFArray.h"
#import "OFString.h"
#import "OFAutoreleasePool.h"

#import "TestsAppDelegate.h"

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

static OFString *module = @"OFData+ASN1DERValue";

@implementation TestsAppDelegate (OFDataASN1DERValueTests)
- (void)dataASN1DERValueTests
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	OFArray *array;

	TEST(@"Parsing of boolean",
	    ![[[OFData dataWithItems: "\x01\x01\x00"
			       count: 3] ASN1DERValue] booleanValue] &&
	    [[[OFData dataWithItems: "\x01\x01\xFF"
			      count: 3] ASN1DERValue] booleanValue])

	EXPECT_EXCEPTION(@"Detection of invalid boolean #1",
	    OFInvalidFormatException, [[OFData dataWithItems: "\x01\x01\x01"
						       count: 3] ASN1DERValue])

	EXPECT_EXCEPTION(@"Detection of invalid boolean #2",
	    OFInvalidFormatException, [[OFData dataWithItems: "\x01\x02\x00\x00"
						       count: 4] ASN1DERValue])

	EXPECT_EXCEPTION(@"Detection of invalid boolean #3",
	    OFInvalidFormatException, [[OFData dataWithItems: "\x01\x00"
						       count: 2] ASN1DERValue])

	EXPECT_EXCEPTION(@"Detection of truncated boolean",
	    OFTruncatedDataException, [[OFData dataWithItems: "\x01\x01"
						       count: 2] ASN1DERValue])

	TEST(@"Parsing of integer",
	    [[[OFData dataWithItems: "\x02\x00"
			      count: 2] ASN1DERValue] integerValue] == 0 &&
	    [[[OFData dataWithItems: "\x02\x01\x01"
			      count: 3] ASN1DERValue] integerValue] == 1 &&
	    [[[OFData dataWithItems: "\x02\x02\x01\x04"
			      count: 4] ASN1DERValue] integerValue] == 260 &&
	    [[[OFData dataWithItems: "\x02\x01\xFF"
			      count: 3] ASN1DERValue] integerValue] == -1 &&
	    [[[OFData dataWithItems: "\x02\x03\xFF\x00\x00"
			      count: 5] ASN1DERValue] integerValue] == -65536 &&
	    (uintmax_t)[[[OFData dataWithItems: "\x02\x09\x00\xFF\xFF\xFF\xFF"
						"\xFF\xFF\xFF\xFF"
					 count: 11] ASN1DERValue]
	    integerValue] == UINTMAX_MAX)

	EXPECT_EXCEPTION(@"Detecting of invalid integer #1",
	    OFInvalidFormatException, [[OFData dataWithItems: "\x02\x02\x00\x00"
						       count: 4] ASN1DERValue])

	EXPECT_EXCEPTION(@"Detecting of invalid integer #2",
	    OFInvalidFormatException, [[OFData dataWithItems: "\x02\x02\x00\x7F"
						       count: 4] ASN1DERValue])

	EXPECT_EXCEPTION(@"Detecting of invalid integer #3",
	    OFInvalidFormatException, [[OFData dataWithItems: "\x02\x02\xFF\x80"
						       count: 4] ASN1DERValue])

	EXPECT_EXCEPTION(@"Detection of out of range integer",
	    OFOutOfRangeException,
	    [[OFData dataWithItems: "\x02\x09\x01"
				    "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
			     count: 11] ASN1DERValue])

	EXPECT_EXCEPTION(@"Detection of truncated integer",
	    OFTruncatedDataException, [[OFData dataWithItems: "\x02\x02\x00"
						       count: 3] ASN1DERValue])

	TEST(@"Parsing of NULL",
	    [[[OFData dataWithItems: "\x05\x00"
			      count: 2] ASN1DERValue]
	    isKindOfClass: [OFASN1Null class]])

	EXPECT_EXCEPTION(@"Detection of invalid NULL",
	    OFInvalidFormatException, [[OFData dataWithItems: "\x05\x01\x00"
						       count: 3] ASN1DERValue])

	TEST(@"Parsing of UTF-8 string",
	    [[[[OFData dataWithItems: "\x0C\x0EHällo Wörld!"
			      count: 16] ASN1DERValue] stringValue]
	    isEqual: @"Hällo Wörld!"] &&
	    [[[[OFData dataWithItems: "\x0C\x81\x80xxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				      "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				      "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				      "xxxxxxxxxxxxxxxxxxxx"
			      count: 131] ASN1DERValue] stringValue]
	    isEqual: @"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
		     @"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
		     @"xxxxxxxxxxxxxxxx"])

	EXPECT_EXCEPTION(@"Detection of out of range UTF-8 string",
	    OFOutOfRangeException,
	    [[OFData dataWithItems: "\x0C\x89"
				    "\x01\x01\x01\x01\x01\x01\x01\x01\x01"
			     count: 11] ASN1DERValue])

	EXPECT_EXCEPTION(@"Detection of truncated UTF-8 string",
	    OFTruncatedDataException, [[OFData dataWithItems: "\x0C\x01"
						       count: 2] ASN1DERValue])

	EXPECT_EXCEPTION(@"Detection of truncated length",
	    OFTruncatedDataException, [[OFData dataWithItems: "\x0C\x83\x01\x01"
						       count: 4] ASN1DERValue])

	EXPECT_EXCEPTION(@"Detection of invalid / inefficient length #1",
	    OFInvalidFormatException, [[OFData dataWithItems: "\x0C\x81\x7F"
						       count: 3] ASN1DERValue])

	EXPECT_EXCEPTION(@"Detection of invalid / inefficient length #2",
	    OFInvalidFormatException,
	    [[OFData dataWithItems: "\x0C\x82\x00\x80xxxxxxxxxxxxxxxxxxxxxxxxxx"
				    "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				    "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
				    "xxxxxxxxxxxxxxxxxx"
			     count: 132] ASN1DERValue])

	TEST(@"Parsing of sequence",
	    (array = [[OFData dataWithItems: "\x30\x00"
				      count: 2] ASN1DERValue]) &&
	    [array isKindOfClass: [OFArray class]] && [array count] == 0 &&
	    (array = [[OFData dataWithItems: "\x30\x09\x02\x01\x7B\x0C\x04Test"
				      count: 11] ASN1DERValue]) &&
	    [array isKindOfClass: [OFArray class]] && [array count] == 2 &&
	    [[array objectAtIndex: 0] integerValue] == 123 &&
	    [[[array objectAtIndex: 1] stringValue] isEqual: @"Test"])

	EXPECT_EXCEPTION(@"Parsing of truncated sequence #1",
	    OFTruncatedDataException, [[OFData dataWithItems: "\x30\x01"
						       count: 2] ASN1DERValue])

	EXPECT_EXCEPTION(@"Parsing of truncated sequence #2",
	    OFTruncatedDataException,
	    [[OFData dataWithItems: "\x30\x04\x02\x01\x01\x00\x00"
			     count: 7] ASN1DERValue])

	[pool drain];
}
@end

@interface TestsAppDelegate (OFDNSResolverTests)
- (void)DNSResolverTests;
@end

@interface TestsAppDelegate (OFDataTests)
- (void)dataTests;
@end

@interface TestsAppDelegate (OFDataASN1DERValueTests)
- (void)dataASN1DERValueTests;
@end

@interface TestsAppDelegate (OFDateTests)
- (void)dateTests;
@end

@interface TestsAppDelegate (OFDictionaryTests)
- (void)dictionaryTests;

	[self forwardingTests];
#ifdef OF_HAVE_BLOCKS
	[self blockTests];
#endif
	[self stringTests];
	[self characterSetTests];
	[self dataTests];
	[self dataASN1DERValueTests];
	[self arrayTests];
	[self dictionaryTests];
	[self listTests];
	[self setTests];
	[self dateTests];
	[self valueTests];
	[self numberTests];