Mercurial > hg > nginx
changeset 7118:b6dc472299da
HTTP/2: enforce writing the sync request body buffer to file.
The sync flag of HTTP/2 request body buffer is used when the size of request
body is unknown or bigger than configured "client_body_buffer_size". In this
case the buffer points to body data inside the global receive buffer that is
used for reading all HTTP/2 connections in the worker process. Thus, when the
sync flag is set, the buffer must be flushed to a temporary file, otherwise
the request body data can be overwritten.
Previously, the sync buffer wasn't flushed to a temporary file if the whole
body was received in one DATA frame with the END_STREAM flag and wasn't
copied into the HTTP/2 body preread buffer. As a result, the request body
might be corrupted (ticket #1384).
Now, setting r->request_body_in_file_only enforces writing the sync buffer
to a temporary file in all cases.
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Wed, 04 Oct 2017 21:15:15 +0300 |
parents | dbd77a638eb7 |
children | fef61d26da39 |
files | src/http/v2/ngx_http_v2.c |
diffstat | 1 files changed, 2 insertions(+), 5 deletions(-) [+] |
line wrap: on
line diff
--- a/src/http/v2/ngx_http_v2.c +++ b/src/http/v2/ngx_http_v2.c @@ -3589,11 +3589,6 @@ ngx_http_v2_read_request_body(ngx_http_r rb->buf = ngx_create_temp_buf(r->pool, (size_t) len); } else { - if (stream->preread) { - /* enforce writing preread buffer to file */ - r->request_body_in_file_only = 1; - } - rb->buf = ngx_calloc_buf(r->pool); if (rb->buf != NULL) { @@ -3694,6 +3689,8 @@ ngx_http_v2_process_request_body(ngx_htt buf->pos = buf->start = pos; buf->last = buf->end = pos + size; + r->request_body_in_file_only = 1; + } else { if (size > (size_t) (buf->end - buf->last)) { ngx_log_error(NGX_LOG_INFO, fc->log, 0,