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OSSL_HTTP_REQ_CTX_new(): replace method_GET parameter by method_POST

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Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13898)
This commit is contained in:
Dr. David von Oheimb 2021-01-18 12:37:47 +01:00 committed by Dr. David von Oheimb
parent cddbcf02f5
commit 046fba4493
2 changed files with 26 additions and 24 deletions
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14
crypto/http/http_client.c
View File

@ -47,7 +47,7 @@ struct ossl_http_req_ctx_st {
BIO *wbio; /* BIO to send request to */
BIO *rbio; /* BIO to read response from */
BIO *mem; /* Memory BIO response is built into */
int method_GET; /* HTTP method "GET" or "POST" */
int method_POST; /* HTTP method is "POST" (else "GET") */
const char *expected_ct; /* expected Content-Type, or NULL */
int expect_asn1; /* response must be ASN.1-encoded */
unsigned long resp_len; /* length of response */
@ -75,7 +75,7 @@ struct ossl_http_req_ctx_st {
#define OHS_HTTP_HEADER (9 | OHS_NOREAD) /* Headers set, w/o final \r\n */
OSSL_HTTP_REQ_CTX *OSSL_HTTP_REQ_CTX_new(BIO *wbio, BIO *rbio,
int method_GET, int maxline,
int method_POST, int maxline,
unsigned long max_resp_len,
int timeout,
const char *expected_content_type,
@ -100,7 +100,7 @@ OSSL_HTTP_REQ_CTX *OSSL_HTTP_REQ_CTX_new(BIO *wbio, BIO *rbio,
OSSL_HTTP_REQ_CTX_free(rctx);
return NULL;
}
rctx->method_GET = method_GET;
rctx->method_POST = method_POST;
rctx->expected_ct = expected_content_type;
rctx->expect_asn1 = expect_asn1;
rctx->resp_len = 0;
@ -150,7 +150,7 @@ int OSSL_HTTP_REQ_CTX_set_request_line(OSSL_HTTP_REQ_CTX *rctx,
return 0;
}
if (BIO_printf(rctx->mem, "%s ", rctx->method_GET ? "GET" : "POST") <= 0)
if (BIO_printf(rctx->mem, "%s ", rctx->method_POST ? "POST" : "GET") <= 0)
return 0;
if (server != NULL) { /* HTTP (but not HTTPS) proxy is used */
@ -208,7 +208,7 @@ static int OSSL_HTTP_REQ_CTX_content(OSSL_HTTP_REQ_CTX *rctx,
ERR_raise(ERR_LIB_HTTP, ERR_R_PASSED_NULL_PARAMETER);
return 0;
}
if (rctx->method_GET) {
if (!rctx->method_POST) {
ERR_raise(ERR_LIB_HTTP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
return 0;
}
@ -304,7 +304,7 @@ OSSL_HTTP_REQ_CTX *HTTP_REQ_CTX_new(BIO *wbio, BIO *rbio, int use_http_proxy,
}
/* remaining parameters are checked indirectly by the functions called */
if ((rctx = OSSL_HTTP_REQ_CTX_new(wbio, rbio, req_mem == NULL, maxline,
if ((rctx = OSSL_HTTP_REQ_CTX_new(wbio, rbio, req_mem != NULL, maxline,
max_resp_len, timeout,
expected_content_type, expect_asn1))
== NULL)
@ -543,7 +543,7 @@ int OSSL_HTTP_REQ_CTX_nbio(OSSL_HTTP_REQ_CTX *rctx)
goto next_line;
case HTTP_STATUS_CODE_MOVED_PERMANENTLY:
case HTTP_STATUS_CODE_FOUND: /* i.e., moved temporarily */
if (rctx->method_GET) {
if (!rctx->method_POST) { /* method is GET */
rctx->state = OHS_REDIRECT;
goto next_line;
}

36
doc/man3/OSSL_HTTP_REQ_CTX.pod
View File

@ -21,7 +21,7 @@ OSSL_HTTP_REQ_CTX_set_max_response_length
typedef struct ossl_http_req_ctx_st OSSL_HTTP_REQ_CTX;
OSSL_HTTP_REQ_CTX *OSSL_HTTP_REQ_CTX_new(BIO *wbio, BIO *rbio,
int method_GET, int maxline,
int method_POST, int maxline,
unsigned long max_resp_len,
int timeout,
const char *expected_content_type,
@ -53,17 +53,19 @@ This file documents low-level HTTP functions rarely used directly. High-level
HTTP client functions like L<OSSL_HTTP_get(3)> and L<OSSL_HTTP_transfer(3)>
should be preferred.
OSSL_HTTP_REQ_CTX_new() allocates a new HTTP request context structure, which
gets populated with the B<BIO> to send the request to (I<wbio>), the B<BIO> to
read the response from (I<rbio>, which may be the same as I<wbio>), the
request method (I<method_GET>, which may be 1 to indicate that the C<GET>
method is to be used, or 0 to indicate that the C<POST> method is to be used),
the maximum expected response header length (I<max_resp_len>, where any zero
or less indicates the default of 4KiB), a response timeout measure in seconds
(I<timeout>, where 0 indicates no timeout, i.e., waiting indefinitely), the
expected MIME content type of the response (I<expected_content_type>, which
may be NULL for no expectation), and a flag indicating that the response is
expected to be a DER encoded ASN.1 structure (I<expect_asn1>).
OSSL_HTTP_REQ_CTX_new() allocates a new HTTP request context structure,
which gets populated with the B<BIO> to send the request to (I<wbio>),
the B<BIO> to read the response from (I<rbio>, which may be equal to I<wbio>),
the request method (I<method_POST>, which may be 1 to indicate that the C<POST>
method is to be used, or 0 to indicate that the C<GET> method is to be used),
the maximum expected response header length (I<max_resp_len>,
where any zero or less indicates the default of 4KiB),
a response timeout measure in seconds (I<timeout>,
where 0 indicates no timeout, i.e., waiting indefinitely),
the expected MIME content type of the response (I<expected_content_type>,
which may be NULL for no expectation),
and a flag indicating that the response is expected to be
a DER encoded ASN.1 structure (I<expect_asn1>).
The allocated context structure is also populated with an internal allocated
memory B<BIO>, which collects the HTTP request and additional headers as text.
The returned context should only be used for a single HTTP request/response.
@ -73,8 +75,8 @@ The I<wbio> and I<rbio> are not free'd and it is up to the application
to do so.
OSSL_HTTP_REQ_CTX_set_request_line() adds the HTTP request line to the context.
The request command itself becomes C<GET> or C<POST> depending on the value
of I<method_GET> in the OSSL_HTTP_REQ_CTX_new() call. I<server> and I<port>
The request method itself becomes C<GET> or C<POST> depending on the value
of I<method_POST> in the OSSL_HTTP_REQ_CTX_new() call. I<server> and I<port>
may be set to indicate a proxy server and port that the request should go
through, otherwise they should be left NULL. I<path> is the HTTP request path;
if left NULL, C</> is used.
@ -90,8 +92,8 @@ encoding of I<req>, using the ASN.1 template I<it> to do the encoding. The
HTTP header C<Content-Length> is automatically filled out, and if
I<content_type> isn't NULL, the HTTP header C<Content-Type> is also added with
its content as value. All of this ends up in the internal memory B<BIO>.
This requires that the request type be C<POST>, i.e. that I<method_GET> is 0
in the OSSL_HTTP_REQ_CTX_new() call.
This requires that the request type be C<POST>,
i.e., that I<method_POST> is 1 in the OSSL_HTTP_REQ_CTX_new() call.
OSSL_HTTP_REQ_CTX_nbio() attempts the exchange of request and response via HTTP,
using the I<rbio> and I<wbio> that were given in the OSSL_HTTP_REQ_CTX_new()
@ -138,7 +140,7 @@ Adding extra headers with OSSL_HTTP_REQ_CTX_add1_header(). This is optional.
=item 3.
Add C<POST> data with OSSL_HTTP_REQ_CTX_i2d(). This may only be done if
I<method_GET> was 0 in the OSSL_HTTP_REQ_CTX_new() call, and must be done
I<method_POST> was 1 in the OSSL_HTTP_REQ_CTX_new() call, and must be done
exactly once in that case.
=back