/* ocsp_ht.c */

/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL

 * project 2000.

 */

/* ====================================================================

 * Copyright (c) 2000 The OpenSSL Project.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer. 

 *

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in

 *    the documentation and/or other materials provided with the

 *    distribution.

 *

 * 3. All advertising materials mentioning features or use of this

 *    software must display the following acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"

 *

 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

 *    endorse or promote products derived from this software without

 *    prior written permission. For written permission, please contact

 *    licensing@OpenSSL.org.

 *

 * 5. Products derived from this software may not be called "OpenSSL"

 *    nor may "OpenSSL" appear in their names without prior written

 *    permission of the OpenSSL Project.

 *

 * 6. Redistributions of any form whatsoever must retain the following

 *    acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"

 *

 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR

 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

 * OF THE POSSIBILITY OF SUCH DAMAGE.

 * ====================================================================

 *

 * This product includes cryptographic software written by Eric Young

 * (eay@cryptsoft.com).  This product includes software written by Tim

 * Hudson (tjh@cryptsoft.com).

 *

 */

 /*

 © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

 */

#include <openssl/asn1.h>

#include <stdio.h>

#include <stdlib.h>

#include <ctype.h>

#include <string.h>

#include <openssl/ocsp.h>

#include <openssl/err.h>

#include <openssl/buffer.h>

#if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))

#include "libcrypto_wsd_macros.h"

#include "libcrypto_wsd.h"

#endif

#ifdef OPENSSL_SYS_SUNOS

#define strtoul (unsigned long)strtol

#endif /* OPENSSL_SYS_SUNOS */

/* Quick and dirty HTTP OCSP request handler.

 * Could make this a bit cleverer by adding

 * support for non blocking BIOs and a few

 * other refinements.

 */

#ifdef EMULATOR	

	static const char req_txt[] =

"POST %s HTTP/1.0\r\n\

Content-Type: application/ocsp-request\r\n\

Content-Length: %d\r\n\r\n";

#endif

EXPORT_C OCSP_RESPONSE *OCSP_sendreq_bio(BIO *b, char *path, OCSP_REQUEST *req)

{

	BIO *mem = NULL;

	char tmpbuf[1024];

	OCSP_RESPONSE *resp = NULL;

	char *p, *q, *r;

	int len, retcode;

#ifndef EMULATOR	

	static char req_txt[] =

"POST %s HTTP/1.0\r\n\

Content-Type: application/ocsp-request\r\n\

Content-Length: %d\r\n\r\n";

#endif

	len = i2d_OCSP_REQUEST(req, NULL);

	if(BIO_printf(b, req_txt, path, len) < 0) {

		OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_WRITE_ERROR);

		goto err;

	}

	if(i2d_OCSP_REQUEST_bio(b, req) <= 0) {

		OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_WRITE_ERROR);

		goto err;

	}

	if(!(mem = BIO_new(BIO_s_mem()))) goto err;

	/* Copy response to a memory BIO: socket bios can't do gets! */

	while ((len = BIO_read(b, tmpbuf, sizeof tmpbuf))) {

		if(len < 0) {

			OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_READ_ERROR);

			goto err;

		}

		BIO_write(mem, tmpbuf, len);

	}

	if(BIO_gets(mem, tmpbuf, 512) <= 0) {

		OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_RESPONSE_PARSE_ERROR);

		goto err;

	}

	/* Parse the HTTP response. This will look like this:

	 * "HTTP/1.0 200 OK". We need to obtain the numeric code and

         * (optional) informational message.

	 */

	/* Skip to first white space (passed protocol info) */

	for(p = tmpbuf; *p && !isspace((unsigned char)*p); p++) continue;

	if(!*p) {

		OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_RESPONSE_PARSE_ERROR);

		goto err;

	}

	/* Skip past white space to start of response code */

	while(*p && isspace((unsigned char)*p)) p++;

	if(!*p) {

		OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_RESPONSE_PARSE_ERROR);

		goto err;

	}

	/* Find end of response code: first whitespace after start of code */

	for(q = p; *q && !isspace((unsigned char)*q); q++) continue;

	if(!*q) {

		OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_RESPONSE_PARSE_ERROR);

		goto err;

	}

	/* Set end of response code and start of message */ 

	*q++ = 0;

	/* Attempt to parse numeric code */

	retcode = strtoul(p, &r, 10);

	if(*r) goto err;

	/* Skip over any leading white space in message */

	while(*q && isspace((unsigned char)*q))  q++;

	if(*q) {

	/* Finally zap any trailing white space in message (include CRLF) */

	/* We know q has a non white space character so this is OK */

		for(r = q + strlen(q) - 1; isspace((unsigned char)*r); r--) *r = 0;

	}

	if(retcode != 200) {

		OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_RESPONSE_ERROR);

		if(!*q) { 

			ERR_add_error_data(2, "Code=", p);

		}

		else {

			ERR_add_error_data(4, "Code=", p, ",Reason=", q);

		}

		goto err;

	}

	/* Find blank line marking beginning of content */	

	while(BIO_gets(mem, tmpbuf, 512) > 0)

	{

		for(p = tmpbuf; *p && isspace((unsigned char)*p); p++) continue;

		if(!*p) break;

	}

	if(*p) {

		OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_NO_CONTENT);

		goto err;

	}

	if(!(resp = d2i_OCSP_RESPONSE_bio(mem, NULL))) {

		OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,ERR_R_NESTED_ASN1_ERROR);

		goto err;

	}

	err:

	BIO_free(mem);

	return resp;

}