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h2: server: file serving chunk restricted to max frame size from SETTINGS

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Yucong Sun 2021-07-20 10:13:26 +01:00 • committed by Andy Green
parent faf091d8cd
commit e5944a7da2
1 changed files with 17 additions and 2 deletions
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19
lib/roles/http/server/server.c
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@ -2986,6 +2986,9 @@ int lws_serve_http_file_fragment(struct lws *wsi)
unsigned char *p, *pstart;
#if defined(LWS_WITH_RANGES)
unsigned char finished = 0;
#endif
#if defined(LWS_ROLE_H2)
struct lws *nwsi;
#endif
int n, m;
@ -3067,8 +3070,20 @@ int lws_serve_http_file_fragment(struct lws *wsi)
}
#endif
poss = context->pt_serv_buf_size - (unsigned int)n -
LWS_H2_FRAME_HEADER_LENGTH;
poss = context->pt_serv_buf_size;
#if defined(LWS_ROLE_H2)
/*
* If it's h2, restrict any lump that we are sending to the
* max h2 frame size the peer indicated he could handle in
* his SETTINGS
*/
nwsi = lws_get_network_wsi(wsi);
if (nwsi->h2.h2n &&
poss > (lws_filepos_t)nwsi->h2.h2n->peer_set.s[H2SET_MAX_FRAME_SIZE])
poss = (lws_filepos_t)nwsi->h2.h2n->peer_set.s[H2SET_MAX_FRAME_SIZE];
#endif
poss = poss - (lws_filepos_t)(n + LWS_H2_FRAME_HEADER_LENGTH);
if (wsi->http.tx_content_length)
if (poss > wsi->http.tx_content_remain)