ObjFW  Artifact [d326d7d84e]

Artifact d326d7d84e90221fc7314138f8f332e885372cedbc19647458e3fc37ddc5ecf6:

• File src/OFASN1PrintableString.m — part of check-in [aeb403a1ed] at 2020-10-10 14:27:37 on branch trunk — OFObject: Change type of -[hash] to unsigned long

  The internal hash is still 32 bit in most places, but this way, it is at
  least not baked into the API and ABI and can be upgraded later, should
  that ever be necessary. (user: js, size: 3389) [annotate] [blame] [check-ins using] [more...]

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
 *               2018, 2019, 2020
 *   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)stringWithStringValue: (OFString *)stringValue
{
	return [[[self alloc] initWithStringValue: stringValue] autorelease];
}

- (instancetype)initWithStringValue: (OFString *)stringValue
{
	self = [super init];

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

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

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

		_printableStringValue = [stringValue copy];

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

	return self;
}

- (instancetype)initWithTagClass: (of_asn1_tag_class_t)tagClass
		       tagNumber: (of_asn1_tag_number_t)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	void *pool = objc_autoreleasePoolPush();
	OFString *printableStringValue;

	@try {
		if (tagClass != OF_ASN1_TAG_CLASS_UNIVERSAL ||
		    tagNumber != OF_ASN1_TAG_NUMBER_PRINTABLE_STRING ||
		    constructed)
			@throw [OFInvalidArgumentException exception];

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

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

	self = [self initWithStringValue: printableStringValue];

	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