ObjFW  Check-in [7636fc0143]

       ${USE_SRCS_OPENSSL}		\
       ${USE_SRCS_SECURETRANSPORT}

SRCS_GNUTLS = OFGnuTLSTLSStream.m			\
	      OFGnuTLSX509Certificate.m			\
	      OFGnuTLSX509CertificatePrivateKey.m
SRCS_MBEDTLS = OFMbedTLSTLSStream.m
SRCS_OPENSSL = OFOpenSSLTLSStream.m			\
	       OFOpenSSLX509Certificate.m		\
	       OFOpenSSLX509CertificatePrivateKey.m
SRCS_SECURETRANSPORT = OFSecureTransportTLSStream.m

includesubdir = ObjFWTLS

include ../../buildsys.mk

install-extra:

		    GNUTLS_E_SUCCESS)
			@throw [OFTLSHandshakeFailedException
			    exceptionWithStream: self
					   host: host
				      errorCode: initFailedErrorCode];

		if (_verifiesCertificates)
			gnutls_session_set_verify_cert(_session,
			    _host.UTF8String, 0);
	}

	if (_certificateChain.count > 0) {
		OFGnuTLSX509CertificatePrivateKey *privateKey =
		    (OFGnuTLSX509CertificatePrivateKey *)_privateKey;
		OFMutableData *certs = [OFMutableData
		    dataWithItemSize: sizeof(gnutls_x509_crt_t)
			    capacity: _certificateChain.count];

		for (OFGnuTLSX509Certificate *cert in _certificateChain) {

			@throw e;
		} @finally {
			[certificate release];
		}
	}

	gnutls_free(certs);

	[chain makeImmutable];

	objc_autoreleasePoolPop(pool);

	return chain;
}

- (instancetype)of_initWithGnuTLSCertificate: (gnutls_x509_crt_t)certificate

OF_ASSUME_NONNULL_BEGIN

#define OFOpenSSLTLSStreamBufferSize 512

OF_SUBCLASSING_RESTRICTED
@interface OFOpenSSLTLSStream: OFTLSStream <OFStreamDelegate>
{
	BIO *_readBIO, *_writeBIO;
	SSL *_SSL;
	bool _server, _handshakeDone;
	OFString *_host;
	char _buffer[OFOpenSSLTLSStreamBufferSize];
}
@end

OF_ASSUME_NONNULL_END

 */

#include "config.h"

#include <errno.h>

#import "OFOpenSSLTLSStream.h"
#import "OFArray.h"
#import "OFData.h"
#import "OFOpenSSLX509Certificate.h"
#import "OFOpenSSLX509CertificatePrivateKey.h"

#include <openssl/err.h>

#import "OFAlreadyOpenException.h"
#import "OFInitializationFailedException.h"
#import "OFNotOpenException.h"
#import "OFReadFailedException.h"
#import "OFTLSHandshakeFailedException.h"
#import "OFWriteFailedException.h"

#define bufferSize OFOpenSSLTLSStreamBufferSize

int _ObjFWTLS_reference;
static SSL_CTX *clientContext, *serverContext;

static OFTLSStreamErrorCode
verifyResultToErrorCode(const SSL *SSL_)
{
	switch (SSL_get_verify_result(SSL_)) {
	case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
	case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:

	SSL_load_error_strings();
	SSL_library_init();

	if ((clientContext = SSL_CTX_new(TLS_client_method())) == NULL ||
	    SSL_CTX_set_default_verify_paths(clientContext) != 1)
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];

	if ((serverContext = SSL_CTX_new(TLS_server_method())) == NULL)
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];
}

- (instancetype)initWithStream: (OFStream <OFReadyForReadingObserving,
				     OFReadyForWritingObserving> *)stream
{
	self = [super initWithStream: stream];

	    SSL_has_pending(_SSL) || BIO_ctrl_pending(_readBIO) > 0);
#else
	return (_underlyingStream.hasDataInReadBuffer ||
	    SSL_pending(_SSL) > 0 || BIO_ctrl_pending(_readBIO) > 0);
#endif
}

- (void)of_asyncPerformHandshakeWithHost: (OFString *)host
				  server: (bool)server
			     runLoopMode: (OFRunLoopMode)runLoopMode
{
	static const OFTLSStreamErrorCode initFailedErrorCode =
	    OFTLSStreamErrorCodeInitializationFailed;
	void *pool = objc_autoreleasePoolPush();
	id exception = nil;
	int status;

				   host: host
			      errorCode: initFailedErrorCode];
	}

	BIO_set_mem_eof_return(_readBIO, -1);
	BIO_set_mem_eof_return(_writeBIO, -1);

	if ((_SSL = SSL_new(server ? serverContext : clientContext)) == NULL) {
		BIO_free(_readBIO);
		BIO_free(_writeBIO);
		@throw [OFTLSHandshakeFailedException
		    exceptionWithStream: self
				   host: host
			      errorCode: initFailedErrorCode];
	}

	SSL_set_bio(_SSL, _readBIO, _writeBIO);

	if (server)
		SSL_set_accept_state(_SSL);
	else
		SSL_set_connect_state(_SSL);

	_host = [host copy];
	_server = server;

	if (!server) {
		if (SSL_set_tlsext_host_name(_SSL, _host.UTF8String) != 1)
			@throw [OFTLSHandshakeFailedException
			    exceptionWithStream: self
					   host: host
				      errorCode: initFailedErrorCode];

		if (_verifiesCertificates) {
			SSL_set_verify(_SSL, SSL_VERIFY_PEER, NULL);

			if (SSL_set1_host(_SSL, _host.UTF8String) != 1)
				@throw [OFTLSHandshakeFailedException
				    exceptionWithStream: self
						   host: host
					      errorCode: initFailedErrorCode];
		}
	}

	if (_certificateChain.count > 0) {
		OFOpenSSLX509Certificate *certificate =
		    (OFOpenSSLX509Certificate *)_certificateChain.firstObject;
		OFOpenSSLX509CertificatePrivateKey *privateKey =
		    (OFOpenSSLX509CertificatePrivateKey *)_privateKey;
		bool first = true;

		if (SSL_use_certificate(_SSL,
		    certificate.of_openSSLCertificate) != 1 ||
		    SSL_use_PrivateKey(_SSL,
		    privateKey.of_openSSLPrivateKey) != 1)
			@throw [OFTLSHandshakeFailedException
			    exceptionWithStream: self
					   host: host
				      errorCode: initFailedErrorCode];

		for (OFOpenSSLX509Certificate *iter in _certificateChain) {
			if (first) {
				first = false;
				continue;
			}

			if (SSL_add1_chain_cert(_SSL,
			    iter.of_openSSLCertificate) != 1)
				@throw [OFTLSHandshakeFailedException
				    exceptionWithStream: self
						   host: host
					      errorCode: initFailedErrorCode];
		}
	}

	ERR_clear_error();
	status = SSL_do_handshake(_SSL);

	while (BIO_ctrl_pending(_writeBIO) > 0) {
		int tmp = BIO_read(_writeBIO, _buffer, bufferSize);

			    exceptionWithStream: self
					   host: host
				      errorCode: OFTLSStreamErrorCodeUnknown];
			break;
		}
	}

	if (server) {
		if ([_delegate respondsToSelector: @selector(
		    streamDidPerformServerHandshake:exception:)])
			[_delegate streamDidPerformServerHandshake: self
							 exception: exception];
	} else {
		if ([_delegate respondsToSelector: @selector(
		    stream:didPerformClientHandshakeWithHost:exception:)])
			[_delegate		       stream: self
			    didPerformClientHandshakeWithHost: host
						    exception: exception];
	}

	objc_autoreleasePoolPop(pool);
}

- (void)asyncPerformClientHandshakeWithHost: (OFString *)host
				runLoopMode: (OFRunLoopMode)runLoopMode
{
	[self of_asyncPerformHandshakeWithHost: host
					server: false
				   runLoopMode: runLoopMode];
}

- (void)asyncPerformServerHandshakeWithRunLoopMode: (OFRunLoopMode)runLoopMode
{
	[self of_asyncPerformHandshakeWithHost: nil
					server: true
				   runLoopMode: runLoopMode];
}

-      (bool)stream: (OFStream *)stream
  didReadIntoBuffer: (void *)buffer
	     length: (size_t)length
	  exception: (id)exception
{
	if (exception == nil) {

						   host: _host
					      errorCode: unknownErrorCode];
				break;
			}
		}
	}

	if (_server) {
		if ([_delegate respondsToSelector: @selector(
		    streamDidPerformServerHandshake:exception:)])
			[_delegate streamDidPerformServerHandshake: self
							 exception: exception];
	} else {
		if ([_delegate respondsToSelector: @selector(
		    stream:didPerformClientHandshakeWithHost:exception:)])
			[_delegate		       stream: self
			    didPerformClientHandshakeWithHost: _host
						    exception: exception];
	}

	[_delegate release];

	return false;
}

- (OFData *)stream: (OFStream *)stream

						   host: _host
					      errorCode: unknownErrorCode];
				break;
			}
		}
	}

	if (_server) {
		if ([_delegate respondsToSelector: @selector(
		    streamDidPerformServerHandshake:exception:)])
			[_delegate streamDidPerformServerHandshake: self
							 exception: exception];
	} else {
		if ([_delegate respondsToSelector: @selector(
		    stream:didPerformClientHandshakeWithHost:exception:)])
			[_delegate		       stream: self
			    didPerformClientHandshakeWithHost: _host
						    exception: exception];
	}

	[_delegate release];

	return nil;
}
@end

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 3.0 only,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
 * version 3.0 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3.0 along with this program. If not, see
 * <https://www.gnu.org/licenses/>.
 */

#import "OFX509Certificate.h"

#include <openssl/ssl.h>

OF_ASSUME_NONNULL_BEGIN

OF_SUBCLASSING_RESTRICTED
@interface OFOpenSSLX509Certificate: OFX509Certificate
{
	X509 *_certificate;
}

@property (readonly, nonatomic) X509 *of_openSSLCertificate;

- (instancetype)of_initWithOpenSSLCertificate: (X509 *)certificate;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 3.0 only,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
 * version 3.0 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3.0 along with this program. If not, see
 * <https://www.gnu.org/licenses/>.
 */

#include "config.h"

#import "OFOpenSSLX509Certificate.h"
#import "OFArray.h"
#import "OFData.h"

#import "OFInvalidFormatException.h"
#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"

@implementation OFOpenSSLX509Certificate
@synthesize of_openSSLCertificate = _certificate;

+ (void)load
{
	if (OFX509CertificateImplementation == Nil)
		OFX509CertificateImplementation = self;
}

+ (OFArray OF_GENERIC(OFX509Certificate *) *)
    certificateChainFromPEMFileAtIRI: (OFIRI *)IRI
{
	OFMutableArray *chain = [OFMutableArray array];
	void *pool = objc_autoreleasePoolPush();
	OFData *data = [OFData dataWithContentsOfIRI: IRI];
	BIO *bio;

	if (data.count * data.itemSize > INT_MAX)
		@throw [OFOutOfRangeException exception];

	bio = BIO_new_mem_buf(data.items, (int)(data.count * data.itemSize));
	if (bio == NULL)
		@throw [OFOutOfMemoryException
		    exceptionWithRequestedSize: data.count * data.itemSize];

	@try {
		for (;;) {
			OFOpenSSLX509Certificate *certificate;
			X509 *cert = X509_new();

			if (cert == NULL)
				@throw [OFOutOfMemoryException exception];

			if (PEM_read_bio_X509(bio, &cert, NULL, NULL) == NULL) {
				X509_free(cert);
				break;
			}

			@try {
				certificate = [[self alloc]
				    of_initWithOpenSSLCertificate: cert];
			} @catch (id e) {
				X509_free(cert);
				@throw e;
			}

			@try {
				[chain addObject: certificate];
			} @finally {
				[certificate release];
			}
		}
	} @finally {
		BIO_free(bio);
	}

	[chain makeImmutable];

	objc_autoreleasePoolPop(pool);

	return chain;
}

- (instancetype)of_initWithOpenSSLCertificate: (X509 *)certificate
{
	self = [super init];

	_certificate = certificate;

	return self;
}

- (void)dealloc
{
	X509_free(_certificate);

	[super dealloc];
}
@end

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 3.0 only,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
 * version 3.0 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3.0 along with this program. If not, see
 * <https://www.gnu.org/licenses/>.
 */

#import "OFX509CertificatePrivateKey.h"

#include <openssl/ssl.h>

OF_ASSUME_NONNULL_BEGIN

OF_SUBCLASSING_RESTRICTED
@interface OFOpenSSLX509CertificatePrivateKey: OFX509CertificatePrivateKey
{
	EVP_PKEY *_privateKey;
}

@property (readonly, nonatomic) EVP_PKEY *of_openSSLPrivateKey;

- (instancetype)of_initWithOpenSSLPrivateKey: (EVP_PKEY *)privateKey;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 3.0 only,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
 * version 3.0 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3.0 along with this program. If not, see
 * <https://www.gnu.org/licenses/>.
 */

#include "config.h"

#import "OFOpenSSLX509CertificatePrivateKey.h"
#import "OFData.h"

#import "OFInitializationFailedException.h"
#import "OFInvalidFormatException.h"
#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"

@implementation OFOpenSSLX509CertificatePrivateKey
@synthesize of_openSSLPrivateKey = _privateKey;

+ (void)load
{
	if (OFX509CertificatePrivateKeyImplementation == Nil)
		OFX509CertificatePrivateKeyImplementation = self;
}

+ (instancetype)privateKeyFromPEMFileAtIRI: (OFIRI *)IRI
{
	void *pool = objc_autoreleasePoolPush();
	OFData *data = [OFData dataWithContentsOfIRI: IRI];
	BIO *bio;
	OFOpenSSLX509CertificatePrivateKey *privateKey;

	if (data.count * data.itemSize > INT_MAX)
		@throw [OFOutOfRangeException exception];

	bio = BIO_new_mem_buf(data.items, (int)(data.count * data.itemSize));
	if (bio == NULL)
		@throw [OFOutOfMemoryException
		    exceptionWithRequestedSize: data.count * data.itemSize];

	@try {
		EVP_PKEY *key = PEM_read_bio_PrivateKey(bio, NULL, NULL, NULL);

		if (key == NULL)
			@throw [OFInvalidFormatException exception];

		@try {
			privateKey = [[self alloc]
			    of_initWithOpenSSLPrivateKey: key];
		} @catch (id e) {
			EVP_PKEY_free(key);
			@throw e;
		}
	} @finally {
		BIO_free(bio);
	}

	objc_autoreleasePoolPop(pool);

	return [privateKey autorelease];
}

- (instancetype)of_initWithOpenSSLPrivateKey: (EVP_PKEY *)privateKey
{
	self = [super init];

	_privateKey = privateKey;

	return self;
}

- (void)dealloc
{
	EVP_PKEY_free(_privateKey);

	[super dealloc];
}
@end