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Restconf native: add error bodies on early errors

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This commit is contained in:
Olof hagsand 2021-05-05 20:40:59 +02:00
parent 17e7b25537
commit 6605ab8ce7
2 changed files with 21 additions and 13 deletions
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28
apps/restconf/restconf_main_native.c
View file

@ -878,13 +878,17 @@ close_ssl_evhtp_socket(int s,
return retval;
}
/*! Send initial bad request reply before actual packet received, just after accept
* @param[in] ssl if set, it will be freed
/*! Send early bad request reply before actual packet received, just after accept
* @param[in] h Clixon handle
* @param[in] s Socket
* @param[in] ssl If set, it will be freed
* @param[in] body If given add message body using media
*/
static int
send_badrequest(clicon_handle h,
int s,
SSL *ssl,
char *media,
char *body)
{
int retval = -1;
@ -895,9 +899,11 @@ send_badrequest(clicon_handle h,
clicon_err(OE_UNIX, errno, "cbuf_new");
goto done;
}
cprintf(cb, "HTTP/1.1 400 Bad Request\r\nConnection: close\r\nContent-Length: 0\r\nContent-Type: text/plain\r\n\r\n");
if (body)
cprintf(cb, "HTTP/1.1 400 Bad Request\r\nConnection: close\r\n");
if (body){
cprintf(cb, "Content-Type: %s\r\n", media);
cprintf(cb, "Content-Length: %lu\r\n", strlen(body)+2);
}
else
cprintf(cb, "Content-Length: 0\r\n");
cprintf(cb, "\r\n");
@ -978,8 +984,10 @@ restconf_connection(int s,
* signature:
*/
if (connection_parse_nobev(buf, n, conn) < 0){
/* One error is: (2) https to http port*/
clicon_debug(1, "%s connection_parse error", __FUNCTION__);
if (send_badrequest(h, s, conn->ssl, NULL) < 0)
if (send_badrequest(h, s, conn->ssl, "application/yang-data+xml",
"<errors xmlns=\"urn:ietf:params:xml:ns:yang:ietf-restconf\"><error><error-type>protocol</error-type><error-tag>malformed-message</error-tag><error-message>Error from evhtp</error-message></error></errors>") < 0)
goto done;
SSL_free(conn->ssl);
if (close(s) < 0){
@ -1019,8 +1027,8 @@ restconf_connection(int s,
cbuf_reset(rc->rc_outp_buf);
}
else{
clicon_debug(1, "%s bev is NULL 3", __FUNCTION__);
if (send_badrequest(h, s, conn->ssl, NULL) < 0) /* actually error */
if (send_badrequest(h, s, conn->ssl, "application/yang-data+xml",
"<errors xmlns=\"urn:ietf:params:xml:ns:yang:ietf-restconf\"><error><error-type>protocol</error-type><error-tag>malformed-message</error-tag><error-message>No evhtp output</error-message></error></errors>") < 0)
goto done;
}
} /* while moredata */
@ -1192,7 +1200,8 @@ restconf_accept_client(int fd,
switch (e){
case SSL_ERROR_SSL: /* 1 */
clicon_debug(1, "%s SSL_ERROR_SSL (non-ssl message on ssl socket)", __FUNCTION__);
if (send_badrequest(h, s, NULL, "<errors xmlns=\"urn:ietf:params:xml:ns:yang:ietf-restconf\"><error><error-type>protocol</error-type><error-tag>malformed-message</error-tag><error-message>Non-ssl message on ssl socket: certificate required</error-message></error></errors>") < 0)
if (send_badrequest(h, s, NULL, "application/yang-data+xml",
"<errors xmlns=\"urn:ietf:params:xml:ns:yang:ietf-restconf\"><error><error-type>protocol</error-type><error-tag>malformed-message</error-tag><error-message>The plain HTTP request was sent to HTTPS port</error-message></error></errors>") < 0)
goto done;
SSL_free(ssl);
if (close(s) < 0){
@ -1255,9 +1264,8 @@ restconf_accept_client(int fd,
X509_free(peercert);
}
else { /* Get certificates (if available) */
if (send_badrequest(h, s, ssl, NULL) < 0)
if (send_badrequest(h, s, ssl, "application/yang-data+xml", "<errors xmlns=\"urn:ietf:params:xml:ns:yang:ietf-restconf\"><error><error-type>protocol</error-type><error-tag>malformed-message</error-tag><error-message>Peer certificate required</error-message></error></errors>") < 0)
goto done;
clicon_debug(1, "%s conn-free (%p) 5", __FUNCTION__, conn);
restconf_conn_free(conn);
evhtp_connection_free(conn); /* evhtp */
if (ssl){

4
test/test_restconf.sh
View file

@ -167,10 +167,10 @@ function testrun()
expectpart "$(curl $CURLOPTS -X GET $proto://$addr/.well-known/host-meta)" 0 'HTTP/1.1 200 OK' "<XRD xmlns='http://docs.oasis-open.org/ns/xri/xrd-1.0'>" "<Link rel='restconf' href='/restconf'/>" "</XRD>"
# Negative test GET datastore
if [ $proto = http ]; then # see (2) https to http port in restconf_main_openssl.c
if [ $proto = http ]; then # see (2) https to http port in restconf_main_native.c
new "Wrong proto=https on http port, expect err 35 wrong version number"
expectpart "$(curl $CURLOPTS -X GET https://$addr:80/.well-known/host-meta 2>&1)" 35 #"wrong version number" # dependent on curl version
else # see (1) http to https port in restconf_main_openssl.c
else # see (1) http to https port in restconf_main_native.c
new "Wrong proto=http on https port, expect bad request"
expectpart "$(curl $CURLOPTS -X GET http://$addr:443/.well-known/host-meta)" 0 "HTTP/1.1 400 Bad Request"
fi