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# $Id: gzipfilter.py,v 1.1 2002/10/04 21:31:05 grisha Exp $
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# <Directory /where/ever>
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# PythonOutputFilter gzipfilter
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# SetOutputFilter gzipfilter
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from mod_python import apache
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from mod_python import apache
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sio = cStringIO.StringIO()
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f = gzip.GzipFile(mode='wb', fileobj=sio)
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def accepts_gzip(req):
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if req.headers_in.has_key('accept-encoding'):
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encodings = req.headers_in['accept-encoding']
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return (encodings.find("gzip") != -1)
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### main filter function
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def outputfilter(filter):
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if (filter.req.main or
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not accepts_gzip(filter.req)):
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# Presense of filter.req.main tells us that
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# we are in a subrequest. We don't want to compress
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# the data more than once, so we pass_on() in
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# subrequests. We also pass_on() if the client
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# does not accept gzip encoding, of course.
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if not filter.req.sent_bodyct:
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# the above test allows us to set the encoding once
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# rather than every time the filter is invoked
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filter.req.headers_out['content-encoding'] = 'gzip'
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# loop through content, compressing
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# this means we received an EOS, so we pass it on
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# by closing the filter
added
removed
examples/gzipfilter.py
