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http: server: support HEAD via mount

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Until now we parse HEAD requests but don't properly fulfil them.

This adds enough that if the request pointed to a valid mount,
it will send the headers and complete the transaction without
sending the body.

Test with

$ (echo -n -e "GET / HTTP/1.0\r\nHost: default\r\n\r\n"; sleep 2) | nc  127.0.0.1 7681
This commit is contained in:
Andy Green 2019-08-01 12:56:29 +01:00
parent 4e7cefb006
commit a60e60bc29
1 changed files with 9 additions and 0 deletions
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9
lib/roles/http/server/server.c
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@ -767,6 +767,7 @@ lws_find_mount(struct lws *wsi, const char *uri_ptr, int uri_len)
((hm->origin_protocol == LWSMPRO_CGI ||
lws_hdr_total_length(wsi, WSI_TOKEN_GET_URI) ||
lws_hdr_total_length(wsi, WSI_TOKEN_POST_URI) ||
lws_hdr_total_length(wsi, WSI_TOKEN_HEAD_URI) ||
(wsi->http2_substream &&
lws_hdr_total_length(wsi,
WSI_TOKEN_HTTP_COLON_PATH)) ||
@ -2564,6 +2565,14 @@ lws_serve_http_file(struct lws *wsi, const char *file, const char *content_type,
wsi->http.filepos = 0;
lwsi_set_state(wsi, LRS_ISSUING_FILE);
if (lws_hdr_total_length(wsi, WSI_TOKEN_HEAD_URI)) {
/* we do not emit the body */
if (lws_http_transaction_completed(wsi))
return -1;
return 0;
}
lws_callback_on_writable(wsi);
return 0;