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- /* 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).
- *
- */
- #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>
- #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.
- */
- 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;
- 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";
- 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;
- }
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