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Addition filter: set last_in_chain flag when clearing last_buf.

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When the last_buf flag is cleared for add_after_body to append more data from a
subrequest, other filters may still have buffered data, which should be flushed
at this point.  For example, the sub_filter may have a partial match buffered,
which will only be flushed after the subrequest is done, ending up with
interleaved data in output.

Setting last_in_chain instead of last_buf flushes the data and fixes the order
of output buffers.
This commit is contained in:
Roman Arutyunyan 2016-10-03 21:03:27 +03:00
parent 200c7493ae
commit e19481f35e
1 changed files with 1 additions and 0 deletions
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src/http/modules/ngx_http_addition_filter_module.c
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@ -171,6 +171,7 @@ ngx_http_addition_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
for (cl = in; cl; cl = cl->next) { for (cl = in; cl; cl = cl->next) {
if (cl->buf->last_buf) { if (cl->buf->last_buf) {
cl->buf->last_buf = 0; cl->buf->last_buf = 0;
cl->buf->last_in_chain = 1;
cl->buf->sync = 1; cl->buf->sync = 1;
last = 1; last = 1;
} }