1 import cStringIO, zipfile

     2 from django.http import HttpResponse

     3 from django.template import loader

     4 

     5 def compress_kml(kml):

     6     "Returns compressed KMZ from the given KML string."

     7     kmz = cStringIO.StringIO()

     8     zf = zipfile.ZipFile(kmz, 'a', zipfile.ZIP_DEFLATED, False)

     9     zf.writestr('doc.kml', kml)

    10     zf.close()

    11     kmz.seek(0)

    12     return kmz.read()

    13 

    14 def render_to_kml(*args, **kwargs):

    15     "Renders the response as KML (using the correct MIME type)."

    16     return HttpResponse(loader.render_to_string(*args, **kwargs),

    17                         mimetype='application/vnd.google-earth.kml+xml kml')

    18 

    19 def render_to_kmz(*args, **kwargs):

    20     """

    21     Compresses the KML content and returns as KMZ (using the correct 

    22     MIME type).

    23     """

    24     return HttpResponse(compress_kml(loader.render_to_string(*args, **kwargs)),

    25                         mimetype='application/vnd.google-earth.kmz')

    26 

    27 

    28 def render_to_text(*args, **kwargs):

    29     "Renders the response using the MIME type for plain text."

    30     return HttpResponse(loader.render_to_string(*args, **kwargs),

    31                         mimetype='text/plain')