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import zipfile
from io import BytesIO
from django.conf import settings
from django.http import HttpResponse
from django.template import loader
def compress_kml(kml):
"Returns compressed KMZ from the given KML string."
kmz = BytesIO()
zf = zipfile.ZipFile(kmz, 'a', zipfile.ZIP_DEFLATED)
zf.writestr('doc.kml', kml.encode(settings.DEFAULT_CHARSET))
zf.close()
kmz.seek(0)
return kmz.read()
def render_to_kml(*args, **kwargs):
"Renders the response as KML (using the correct MIME type)."
return HttpResponse(loader.render_to_string(*args, **kwargs),
content_type='application/vnd.google-earth.kml+xml')
def render_to_kmz(*args, **kwargs):
"""
Compresses the KML content and returns as KMZ (using the correct
MIME type).
"""
return HttpResponse(compress_kml(loader.render_to_string(*args, **kwargs)),
content_type='application/vnd.google-earth.kmz')
def render_to_text(*args, **kwargs):
"Renders the response using the MIME type for plain text."
return HttpResponse(loader.render_to_string(*args, **kwargs),
content_type='text/plain')
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