[mod_python] gzip pages with mod_python

Tue Mar 23 08:46:28 EST 2004

In php gzipping the pages is fairly trivial. Include this in the file

<?php ob_start("ob_gzhandler"); ?>

Alan Kennedy has a faq for mod_python.
http://www.xhaus.com/alan/python/httpcomp.html#gzip

Grisha - It would be nice to include something closer to the php version 
in the included libraries.

Anthony
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import string
import os
import sys
import gzip
import cStringIO
from   mod_python import apache

def compressBuf(buf):
    zbuf = cStringIO.StringIO()
    zfile = gzip.GzipFile(mode = 'wb',  fileobj = zbuf, compresslevel = 6)
    zfile.write(buf)
    zfile.close()
    return zbuf.getvalue()

def testAcceptsGzip(req):
    if req.headers_in.has_key('accept-encoding'):
        encodings = req.headers_in['accept-encoding']
        return (string.find(encodings, "gzip") != -1)
    else:
        return 0

def handler(req):
    req.content_type = "text/html"
    myHtml = """<html><body><h1>hello compressed 
world!</h1></body></html>"""
    if testAcceptsGzip(req):
        zbuf = compressBuf(myHtml)
        req.headers_out['Content-Encoding'] = 'gzip'
        req.headers_out['Content-Length'] = '%d' % (len(zbuf))
        req.send_http_header()
        req.write(zbuf)
    else:
        req.send_http_header()
        req.write(myHtml)
    return apache.OK
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