Add an export() view, and implement it as text/text for Document.
For every Model except Document, the public() view is displayed for any
attempts to access the export() view.
Currently, the permissions for export() are the same as for public(). This
seems reasonable for Document, since anyone could extract the raw HTML from
the page source anyway. The permissions should probably be different for
other types of exports, such as vCard or iCard exports of profiles, CSV
exports of lists, etc.
Patch by: Todd Larsen
Review by: to-be-reviewed
import re
from django.utils.text import compress_string
from django.utils.cache import patch_vary_headers
re_accepts_gzip = re.compile(r'\bgzip\b')
class GZipMiddleware(object):
"""
This middleware compresses content if the browser allows gzip compression.
It sets the Vary header accordingly, so that caches will base their storage
on the Accept-Encoding header.
"""
def process_response(self, request, response):
# It's not worth compressing non-OK or really short responses.
if response.status_code != 200 or len(response.content) < 200:
return response
patch_vary_headers(response, ('Accept-Encoding',))
# Avoid gzipping if we've already got a content-encoding.
if response.has_header('Content-Encoding'):
return response
# Older versions of IE have issues with gzipped pages containing either
# Javascript and PDF.
if "msie" in request.META.get('HTTP_USER_AGENT', '').lower():
ctype = response.get('Content-Type', '').lower()
if "javascript" in ctype or ctype == "application/pdf":
return response
ae = request.META.get('HTTP_ACCEPT_ENCODING', '')
if not re_accepts_gzip.search(ae):
return response
response.content = compress_string(response.content)
response['Content-Encoding'] = 'gzip'
response['Content-Length'] = str(len(response.content))
return response