GeoServer tile with django

tile_file.py

import os

from django.conf import settings
from django.http.request import HttpRequest
from django.http.response import HttpResponse, HttpResponseRedirectBase


def http_redirect(request=HttpRequest):
    bbox = [float(i) for i in request.GET.get('bbox').split(',')[:4]]
    layers = request.GET.get('layers').replace(':', '_')
    srs = request.GET.get('srs').replace(':', '_')
    zoom = "_15"
    tmp = '079_073/020379_018777.png'
    target = os.path.join(settings.GEOSERVER_DATADIR, 'gwc', layers, srs + zoom, tmp)
    return HttpResponseRedirectBase(target)


def http_simple(request=HttpRequest):
    bbox = [float(i) for i in request.GET.get('bbox').split(',')[:4]]
    layers = request.GET.get('layers').replace(':', '_')
    srs = request.GET.get('srs').replace(':', '_')
    zoom = "_15"
    tmp = '079_073/020379_018777.png'
    target = os.path.join(settings.GEOSERVER_DATADIR, 'gwc', layers, srs + zoom, tmp)

    def chunk_file(f, chunksize=4096):
        return iter(lambda: f.read(chunksize), b'')

    buffer = b''
    # response.content = b''
    with open(target, 'rb') as f:
        for buf in chunk_file(f):
            buffer += buf

    return HttpResponse(content=buffer, content_type='image/png')