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When creating a new nxt_file_t structure in
nxt_http_comp_compress_static_response() for the temporary compressed
file be sure to set the *name* member.
We don't generally need it, but I failed to notice that when calling
nxt_file_close() if the close(2) fails then we log an error message
containing the file name, which at best would have just printed junk.
So set the file name for this particular error case...
This issue was reported by coverity.
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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This adds initial support for compressing application responses.
A couple of things to note
1) Compressed responses are sent 'chunked' as we don't know beforehand
how large the compressed response will be.
2) We only compress responses where we know the Content-Length as we
need to check with the 'min_length' config parameter. It's also
currently how we track when we need to close the compression stream
off.
Co-authored-by: Alejandro Colomar <alx@kernel.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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This adds support for both deflate & gzip compressors.
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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This is the initial step to enabling HTTP compression on both static and
application responses.
This code itself doesn't do any actual compression, that will come in
subsequent commits. It just contains the core functions for initialising
structures that describe the available compressors and functions for
checking if compression should be done depending on various criteria.
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
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