crypto/ocsp/ocsp_http.c

   1 /*
   2  * Copyright 2001-2020 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <openssl/ocsp.h>
  11 #include <openssl/http.h>
  12 #include "../http/http_local.h"
  13
  14 #ifndef OPENSSL_NO_OCSP
  15
  16 OSSL_HTTP_REQ_CTX *OCSP_sendreq_new(BIO *io, const char *path,
  17                                     const OCSP_REQUEST *req, int maxline)
  18 {
  19     OSSL_HTTP_REQ_CTX *rctx = NULL;
  20
  21     if ((rctx = OSSL_HTTP_REQ_CTX_new(io, io, 1 /* POST */,
  22                                       maxline, 0 /* default max_resp_len */,
  23                                       0 /* no timeout, blocking indefinitely */,
  24                                       NULL, 1 /* expect_asn1 */)) == NULL)
  25         return NULL;
  26
  27     if (!OSSL_HTTP_REQ_CTX_set_request_line(rctx, NULL, NULL, path))
  28         goto err;
  29
  30     if (req != NULL && !OSSL_HTTP_REQ_CTX_i2d(rctx, "application/ocsp-request",
  31                                               ASN1_ITEM_rptr(OCSP_REQUEST),
  32                                               (ASN1_VALUE *)req))
  33         goto err;
  34
  35     return rctx;
  36
  37  err:
  38     OSSL_HTTP_REQ_CTX_free(rctx);
  39     return NULL;
  40 }
  41
  42 int OCSP_sendreq_nbio(OCSP_RESPONSE **presp, OSSL_HTTP_REQ_CTX *rctx)
  43 {
  44     *presp = (OCSP_RESPONSE *)
  45         OSSL_HTTP_REQ_CTX_sendreq_d2i(rctx, ASN1_ITEM_rptr(OCSP_RESPONSE));
  46     return *presp != NULL;
  47 }
  48
  49 OCSP_RESPONSE *OCSP_sendreq_bio(BIO *b, const char *path, OCSP_REQUEST *req)
  50 {
  51     OCSP_RESPONSE *resp = NULL;
  52     OSSL_HTTP_REQ_CTX *ctx;
  53     int rv;
  54
  55     ctx = OCSP_sendreq_new(b, path, req, -1 /* default max resp line length */);
  56     if (ctx == NULL)
  57         return NULL;
  58
  59     rv = OCSP_sendreq_nbio(&resp, ctx);
  60
  61     /* this indirectly calls ERR_clear_error(): */
  62     OSSL_HTTP_REQ_CTX_free(ctx);
  63
  64     return rv == 1 ? resp : NULL;
  65 }
  66 #endif /* !defined(OPENSSL_NO_OCSP) */