diff options
| author | Florian Obser <florian@cvs.openbsd.org> | 2018-09-07 09:31:14 +0000 |
|---|---|---|
| committer | Florian Obser <florian@cvs.openbsd.org> | 2018-09-07 09:31:14 +0000 |
| commit | da8d252ef6fae5156bd29e60eabc43660253900a (patch) | |
| tree | 4b006a31e80a96719990d0f31c1ff8a066206425 /usr.sbin/httpd/server_http.c | |
| parent | 22d6e203471b1ec691defdec13bc37270cbe65e8 (diff) | |
Do not send a Content-Length header for 1xx and 204 status codes since
RFC 7230 states that a server MUST NOT do so.
At least relayd chokes on this.
Pointed out & diff by Carlin Bingham (cb AT walcyrge.org), thanks!
OK benno
Diffstat (limited to 'usr.sbin/httpd/server_http.c')
| -rw-r--r-- | usr.sbin/httpd/server_http.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/usr.sbin/httpd/server_http.c b/usr.sbin/httpd/server_http.c index 4c91dea2d16..9306082edaf 100644 --- a/usr.sbin/httpd/server_http.c +++ b/usr.sbin/httpd/server_http.c @@ -1,4 +1,4 @@ -/* $OpenBSD: server_http.c,v 1.122 2018/06/20 16:43:05 reyk Exp $ */ +/* $OpenBSD: server_http.c,v 1.123 2018/09/07 09:31:13 florian Exp $ */ /* * Copyright (c) 2006 - 2018 Reyk Floeter <reyk@openbsd.org> @@ -846,6 +846,7 @@ server_abort_http(struct client *clt, unsigned int code, const char *msg) const char *httperr = NULL, *style; char *httpmsg, *body = NULL, *extraheader = NULL; char tmbuf[32], hbuf[128], *hstsheader = NULL; + char *clenheader = NULL; char buf[IBUF_READ_SIZE]; char *escapedmsg = NULL; int bodylen; @@ -961,6 +962,16 @@ server_abort_http(struct client *clt, unsigned int code, const char *msg) } } + if ((code >= 100 && code < 200) || code == 204) + clenheader = NULL; + else { + if (asprintf(&clenheader, + "Content-Length: %d\r\n", bodylen) == -1) { + clenheader = NULL; + goto done; + } + } + /* Add basic HTTP headers */ if (asprintf(&httpmsg, "HTTP/1.0 %03d %s\r\n" @@ -968,15 +979,17 @@ server_abort_http(struct client *clt, unsigned int code, const char *msg) "Server: %s\r\n" "Connection: close\r\n" "Content-Type: text/html\r\n" - "Content-Length: %d\r\n" + "%s" "%s" "%s" "\r\n" "%s", - code, httperr, tmbuf, HTTPD_SERVERNAME, bodylen, + code, httperr, tmbuf, HTTPD_SERVERNAME, + clenheader == NULL ? "" : clenheader, extraheader == NULL ? "" : extraheader, hstsheader == NULL ? "" : hstsheader, - desc->http_method == HTTP_METHOD_HEAD ? "" : body) == -1) + desc->http_method == HTTP_METHOD_HEAD || clenheader == NULL ? + "" : body) == -1) goto done; /* Dump the message without checking for success */ @@ -987,6 +1000,7 @@ server_abort_http(struct client *clt, unsigned int code, const char *msg) free(body); free(extraheader); free(hstsheader); + free(clenheader); if (msg == NULL) msg = "\"\""; if (asprintf(&httpmsg, "%s (%03d %s)", msg, code, httperr) == -1) { |