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Send a 413 if header_recv buffer is full.

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Kore used to just stall the connection until the timeout kicked
in, but if no proper headers were received by the time the header
buffer is full we should just error out.

While here, use s_off for the inital length check.
This commit is contained in:
Joris Vink 2022-09-07 12:41:38 +02:00
parent 80db912c34
commit 783cc6cd4c
1 changed files with 8 additions and 2 deletions
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10
src/http.c
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@ -799,7 +799,7 @@ http_header_recv(struct netbuf *nb)
c = nb->owner;
if (nb->b_len < 4)
if (nb->s_off < 4)
return (KORE_RESULT_OK);
if (!isalpha(nb->buf[0])) {
@ -811,8 +811,14 @@ http_header_recv(struct netbuf *nb)
end_headers = kore_mem_find(nb->buf, nb->s_off, "\r\n\r\n", 4);
if (end_headers == NULL) {
end_headers = kore_mem_find(nb->buf, nb->s_off, "\n\n", 2);
if (end_headers == NULL)
if (end_headers == NULL) {
if (nb->s_off == http_header_max) {
http_error_response(c,
HTTP_STATUS_REQUEST_ENTITY_TOO_LARGE);
return (KORE_RESULT_ERROR);
}
return (KORE_RESULT_OK);
}
skip = 2;
}