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Last change
on this file since 9549 was 9549, checked in by rick, 13 years ago |
- Caches are now fully-file based as memcached was not working well with large entries (like images).
- OSM django proxy is way to slow, rewrite to use apache balanced proxy members.
- Use HTTPD mod_cache to cache heavy image generation work.
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File size:
711 bytes
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| 1 | #
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| 2 | # Hack to cache OSM tile images locally, using file based django caching
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| 3 | #
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| 4 | # Rick van der Zwet <info@rickvanderzwet.nl>
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| 5 | #
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| 6 | from django.views.decorators.cache import cache_page
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| 7 | from django.http import HttpResponse
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| 8 |
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| 9 | import settings
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| 10 | import random
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| 11 | import urllib
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| 12 |
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| 13 | import logging
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| 14 | logger = logging.getLogger(__name__)
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| 15 |
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| 16 |
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| 17 | # Create your views here.
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| 18 | @cache_page(60 * 60 * 24 * 7, cache="osm_proxy")
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| 19 | def osm_proxy(request,zoom,x,y):
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| 20 | mirror = random.choice(['a','b','c'])
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| 21 | url = 'http://%s.tile.openstreetmap.org/%s/%s/%s.png' % (mirror, zoom, x, y)
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| 22 | logger.info("Fetching tile from %s" % url)
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| 23 | data = urllib.urlopen(url).read()
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| 24 | response = HttpResponse(mimetype="image/png")
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| 25 | response.write(data)
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| 26 | return response
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