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fix spec compliance for 405 reply, handle OPTIONS request with asterisk-form (RFC 7230, section 5.3.4)

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This commit is contained in:
Christian Grothoff 2021-04-01 12:07:44 +02:00
parent 7c485a2153
commit 4345e6b434
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GPG Key ID: 939E6BE1E29FC3CC
1 changed files with 62 additions and 7 deletions
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69
src/exchange/taler-exchange-httpd.c
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@ -966,13 +966,19 @@ handle_mhd_request (void *cls,
return ret;
}
if ( (0 == strcasecmp (method,
MHD_HTTP_METHOD_OPTIONS)) &&
(0 == strcmp ("*",
url)) )
return TALER_MHD_reply_cors_preflight (connection);
if (0 == strcasecmp (method,
MHD_HTTP_METHOD_HEAD))
method = MHD_HTTP_METHOD_GET; /* treat HEAD as GET here, MHD will do the rest */
/* parse first part of URL */
{
int found = GNUNET_NO;
bool found = false;
size_t tok_size;
const char *tok;
const char *rest;
@ -1000,7 +1006,7 @@ handle_mhd_request (void *cls,
tok_size)) ||
(tok_size != strlen (rh->url) ) )
continue;
found = GNUNET_YES;
found = true;
/* The URL is a match! What we now do depends on the method. */
if (0 == strcasecmp (method, MHD_HTTP_METHOD_OPTIONS))
{
@ -1027,14 +1033,63 @@ handle_mhd_request (void *cls,
}
}
if (GNUNET_YES == found)
if (found)
{
/* we found a matching address, but the method is wrong */
struct MHD_Response *reply;
MHD_RESULT ret;
char *allowed = NULL;
GNUNET_break_op (0);
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_METHOD_NOT_ALLOWED,
TALER_EC_GENERIC_METHOD_INVALID,
method);
for (unsigned int i = 0; NULL != handlers[i].url; i++)
{
struct TEH_RequestHandler *rh = &handlers[i];
if ( (0 != strncmp (tok,
rh->url,
tok_size)) ||
(tok_size != strlen (rh->url) ) )
continue;
if (NULL == allowed)
{
allowed = GNUNET_strdup (rh->method);
}
else
{
char *tmp;
GNUNET_asprintf (&tmp,
"%s, %s",
allowed,
rh->method);
GNUNET_free (allowed);
allowed = tmp;
}
if (0 == strcasecmp (rh->method,
MHD_HTTP_METHOD_GET))
{
char *tmp;
GNUNET_asprintf (&tmp,
"%s, %s",
allowed,
MHD_HTTP_METHOD_HEAD);
GNUNET_free (allowed);
allowed = tmp;
}
}
reply = TALER_MHD_make_error (TALER_EC_GENERIC_METHOD_INVALID,
method);
GNUNET_break (MHD_YES ==
MHD_add_response_header (reply,
MHD_HTTP_HEADER_ALLOW,
allowed));
GNUNET_free (allowed);
ret = MHD_queue_response (connection,
MHD_HTTP_METHOD_NOT_ALLOWED,
reply);
MHD_destroy_response (reply);
return ret;
}
}