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Disabled duplicate "Host" headers (ticket #1724). 

Duplicate "Host" headers were allowed in nginx 0.7.0 (revision b9de93d804ea)
as a workaround for some broken Motorola phones which used to generate
requests with two "Host" headers[1].  It is believed that this workaround
is no longer relevant.

[1] http://mailman.nginx.org/pipermail/nginx-ru/2008-May/017845.html
This commit is contained in:
Maxim Dounin 2020-02-20 16:51:07 +03:00
parent b4d6b70d7f
commit 37984f0be1
1 changed files with 10 additions and 2 deletions
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12
src/http/ngx_http_request.c
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@ -1755,10 +1755,18 @@ ngx_http_process_host(ngx_http_request_t *r, ngx_table_elt_t *h,
ngx_int_t rc;
ngx_str_t host;
if (r->headers_in.host == NULL) {
r->headers_in.host = h;
if (r->headers_in.host) {
ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
"client sent duplicate host header: \"%V: %V\", "
"previous value: \"%V: %V\"",
&h->key, &h->value, &r->headers_in.host->key,
&r->headers_in.host->value);
ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
return NGX_ERROR;
}
r->headers_in.host = h;
host = h->value;
rc = ngx_http_validate_host(&host, r->pool, 0);