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httpd: compare client requests case-insensitive

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Fixes bug #10047 (Fix case-sensitive comparison of Content-Length header for POST requests)

Signed-off-by: Simon Goldschmidt <goldsimon@gmx.de>
This commit is contained in:
Simon Goldschmidt 2023-09-28 22:29:15 +02:00
parent 7807f706f3
commit 2159f84682
1 changed files with 3 additions and 3 deletions
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6
src/apps/http/httpd.c
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@ -1818,7 +1818,7 @@ http_post_request(struct pbuf *inp, struct http_state *hs,
#define HTTP_HDR_CONTENT_LEN "Content-Length: "
#define HTTP_HDR_CONTENT_LEN_LEN 16
#define HTTP_HDR_CONTENT_LEN_DIGIT_MAX_LEN 10
char *scontent_len = lwip_strnstr(uri_end + 1, HTTP_HDR_CONTENT_LEN, crlfcrlf - (uri_end + 1));
char *scontent_len = lwip_strnistr(uri_end + 1, HTTP_HDR_CONTENT_LEN, crlfcrlf - (uri_end + 1));
if (scontent_len != NULL) {
char *scontent_len_end = lwip_strnstr(scontent_len + HTTP_HDR_CONTENT_LEN_LEN, CRLF, HTTP_HDR_CONTENT_LEN_DIGIT_MAX_LEN);
if (scontent_len_end != NULL) {
@ -2086,8 +2086,8 @@ http_parse_request(struct pbuf *inp, struct http_state *hs, struct altcp_pcb *pc
#if LWIP_HTTPD_SUPPORT_11_KEEPALIVE
/* This is HTTP/1.0 compatible: for strict 1.1, a connection
would always be persistent unless "close" was specified. */
if (!is_09 && (lwip_strnstr(data, HTTP11_CONNECTIONKEEPALIVE, data_len) ||
lwip_strnstr(data, HTTP11_CONNECTIONKEEPALIVE2, data_len))) {
if (!is_09 && (lwip_strnistr(data, HTTP11_CONNECTIONKEEPALIVE, data_len) ||
lwip_strnistr(data, HTTP11_CONNECTIONKEEPALIVE2, data_len))) {
hs->keepalive = 1;
} else {
hs->keepalive = 0;