author | Sverre Rabbelier <srabbelier@gmail.com> |
Sat, 15 Nov 2008 16:17:11 +0000 | |
changeset 482 | 839740b061ad |
parent 54 | 03e267d67478 |
permissions | -rw-r--r-- |
54
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
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import re |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
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03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
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from django.utils.text import compress_string |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
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from django.utils.cache import patch_vary_headers |
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Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
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03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
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re_accepts_gzip = re.compile(r'\bgzip\b') |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
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03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
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class GZipMiddleware(object): |
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Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
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""" |
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Todd Larsen <tlarsen@google.com>
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This middleware compresses content if the browser allows gzip compression. |
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Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
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It sets the Vary header accordingly, so that caches will base their storage |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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on the Accept-Encoding header. |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
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""" |
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Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
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def process_response(self, request, response): |
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# It's not worth compressing non-OK or really short responses. |
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if response.status_code != 200 or len(response.content) < 200: |
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return response |
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Todd Larsen <tlarsen@google.com>
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03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
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patch_vary_headers(response, ('Accept-Encoding',)) |
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Todd Larsen <tlarsen@google.com>
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Todd Larsen <tlarsen@google.com>
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# Avoid gzipping if we've already got a content-encoding. |
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if response.has_header('Content-Encoding'): |
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return response |
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Todd Larsen <tlarsen@google.com>
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# Older versions of IE have issues with gzipped pages containing either |
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# Javascript and PDF. |
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if "msie" in request.META.get('HTTP_USER_AGENT', '').lower(): |
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Todd Larsen <tlarsen@google.com>
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ctype = response.get('Content-Type', '').lower() |
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Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
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if "javascript" in ctype or ctype == "application/pdf": |
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Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
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return response |
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Todd Larsen <tlarsen@google.com>
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Todd Larsen <tlarsen@google.com>
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ae = request.META.get('HTTP_ACCEPT_ENCODING', '') |
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Todd Larsen <tlarsen@google.com>
parents:
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if not re_accepts_gzip.search(ae): |
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Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
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return response |
03e267d67478
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Todd Larsen <tlarsen@google.com>
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03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
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response.content = compress_string(response.content) |
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Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
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response['Content-Encoding'] = 'gzip' |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
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response['Content-Length'] = str(len(response.content)) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
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return response |