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BUG/MINOR: cache/htx: Return only the headers of cached objects to HEAD requests

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The body of a cached object must not be sent in response to a HEAD request. This
works for the legacy HTTP because the parsing is performed by HTTP analyzers
_AND_ because the connection is closed at the end of the transaction. So the
body is ignored. But the applet send it. For the HTX, the applet must skip the
body explicitly.

This patch must be backported to 1.9.
This commit is contained in:
Christopher Faulet 2019-02-25 11:08:34 +01:00
parent b3d4bca415
commit f0dd037456
1 changed files with 5 additions and 1 deletions
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6
src/cache.c
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@ -1023,7 +1023,11 @@ static void htx_cache_io_handler(struct appctx *appctx)
goto error;
total += ret;
if (cache_ptr->data_len)
if (si_strm(si)->txn->meth == HTTP_METH_HEAD) {
/* Skip response body for HEAD requests */
appctx->st0 = HTX_CACHE_EOM;
}
else if (cache_ptr->data_len)
appctx->st0 = HTX_CACHE_DATA;
else if (first->len > sizeof(*cache_ptr) + appctx->ctx.cache.sent) {
/* Headers have benn sent (hrds_len) and there is no data