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| author | Vitaliy Orazov <vitaly.orazov@rubetek.com> | 2021-12-13 18:51:22 +0300 |
|---|---|---|
| committer | Andy Green <andy@warmcat.com> | 2021-12-14 08:10:25 +0000 |
| commit | e529720fc1d66f89b87c6865bb7b50ff75c554db (patch) | |
| tree | 18da08543d442f83337f9f42b80689bad8e918ec | |
| parent | 91da9e30c7527275d232d2d5f161b53e697ecfe1 (diff) | |
| download | libwebsockets-e529720fc1d66f89b87c6865bb7b50ff75c554db.tar.gz | |
http: proxying: allow for large headers
set the buffer size (rpath) for header processing during
proxying equal to the value in max_http_header_data
| -rw-r--r-- | lib/roles/http/server/server.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/roles/http/server/server.c b/lib/roles/http/server/server.c index bd38a33f..c7eb94c3 100644 --- a/lib/roles/http/server/server.c +++ b/lib/roles/http/server/server.c @@ -1248,10 +1248,12 @@ int lws_http_proxy_start(struct lws *wsi, const struct lws_http_mount *hit, char *uri_ptr, char ws) { - char ads[96], rpath[256], host[96], *pcolon, *pslash, unix_skt = 0; + char ads[96], host[96], *pcolon, *pslash, unix_skt = 0; struct lws_client_connect_info i; struct lws *cwsi; int n, na; + unsigned int max_http_header_data = wsi->a.context->max_http_header_data > 256 ? wsi->a.context->max_http_header_data : 256; + char rpath[max_http_header_data]; #if defined(LWS_ROLE_WS) if (ws) @@ -1318,7 +1320,7 @@ lws_http_proxy_start(struct lws *wsi, const struct lws_http_mount *hit, if (pcolon) i.port = atoi(pcolon + 1); - n = lws_snprintf(rpath, sizeof(rpath) - 1, "/%s/%s", + n = lws_snprintf(rpath, max_http_header_data - 1, "/%s/%s", pslash + 1, uri_ptr + hit->mountpoint_len) - 1; lws_clean_url(rpath); n = (int)strlen(rpath); @@ -1335,7 +1337,7 @@ lws_http_proxy_start(struct lws *wsi, const struct lws_http_mount *hit, p = rpath + n; - if (na >= (int)sizeof(rpath) - n - 2) { + if (na >= (int)max_http_header_data - n - 2) { lwsl_info("%s: query string %d longer " "than we can handle\n", __func__, na); @@ -1345,7 +1347,7 @@ lws_http_proxy_start(struct lws *wsi, const struct lws_http_mount *hit, *p++ = '?'; budg = lws_hdr_copy(wsi, p, - (int)(&rpath[sizeof(rpath) - 1] - p), + (int)(&rpath[max_http_header_data - 1] - p), WSI_TOKEN_HTTP_URI_ARGS); if (budg > 0) p += budg; |