def proxy_tms(request, origin=None, slug=None, z=None, x=None, y=None, u=None, ext=None): #starttime = time.clock() # Check Existing Tile Sourcesi match_tilesource = None tilesources = getTileSources(proxy=True) for tilesource in tilesources: if tilesource['name'] == slug: match_tilesource = tilesource break if match_tilesource: if match_tilesource['origin'] != origin: print "Origin is not correct. Tilesource is unique, but origin need to match too." print tilesource['origin'] return None else: tile = _requestTile( request, tileservice=None, tilesource=match_tilesource, tileorigin=match_tilesource['origin'], z=z,x=x,y=y,u=u,ext=ext) #print "Time Elapsed: "+str(time.clock()-starttime) return tile # Check Existing Tile Origins to see if we need to create a new tile source match_tileorigin = None if origin: tileorigins = getTileOrigins(proxy=True) for tileorigin in tileorigins: if tileorigin.name == origin: match_tileorigin = tileorigin break if match_tileorigin: to = match_tileorigin if to.multiple: ts_url = to.url.replace('{slug}', slug) if TileSource.objects.filter(url=ts_url).count() > 0: print "Error: This souldn't happen. You should have matched the tilesource earlier so you don't duplicate" return None exts = string_to_list(to.extensions) ts_pattern = url_to_pattern(ts_url, extensions=exts) ts = TileSource(auto=True,url=ts_url,pattern=ts_pattern,name=slug,type=to.type,extensions=exts,origin=to) ts.save() reloadTileSources(proxy=False) reloadTileSources(proxy=True) return _requestTile(request,tileservice=None,tilesource=tilesource,z=z,x=x,y=y,u=u,ext=ext) else: ts = TileSource(auto=True,url=to.url,pattern=to.pattern,name=to.name,type=to.type,extensions=to.extensions) ts.save() reloadTileSources(proxy=False) reloadTileSources(proxy=True) return _requestTile(request,tileservice=None,tilesource=tilesource,z=z,x=x,y=y,u=u,ext=ext) else: return None
def proxy(request): PROXY_ALLOWED_HOSTS = getattr(settings, 'PROXY_ALLOWED_HOSTS', ()) host = None if 'url' not in request.GET: return HttpResponse("The proxy service requires a URL-encoded URL as a parameter.", status=400, content_type="text/plain" ) raw_url = request.GET['url'] url = urlsplit(raw_url) locator = url.path if url.query != "": locator += '?' + url.query if url.fragment != "": locator += '#' + url.fragment if not settings.DEBUG: if not validate_host(url.hostname, PROXY_ALLOWED_HOSTS): return HttpResponse("DEBUG is set to False but the host of the path provided to the proxy service" " is not in the PROXY_ALLOWED_HOSTS setting.", status=403, content_type="text/plain" ) headers = {} if settings.SESSION_COOKIE_NAME in request.COOKIES and is_safe_url(url=raw_url, host=host): headers["Cookie"] = request.META["HTTP_COOKIE"] if request.method in ("POST", "PUT") and "CONTENT_TYPE" in request.META: headers["Content-Type"] = request.META["CONTENT_TYPE"] print "Raw URL: "+ raw_url match_regex = None match_tilesource = None # Try to match against existing tile sources #tilesources = TileSource.objects.exclude(pattern__isnull=True).exclude(pattern__exact='') tilesources = getTileSources(proxy=True) for tilesource in tilesources: match = match_pattern_url(tilesource.pattern, raw_url) if match: match_regex = match match_tilesource = tilesource break if match_tilesource and match_regex: return proxy_tilesource(request, match_tilesource, match_regex) #else: # return HttpResponse('No matching tilesource found.',RequestContext(request, {}), status=404) # Try to match against existing origins that can automatically create tile sources (auto=true) match_tileorigin = None #tileorigins = TileOrigin.objects.exclude(pattern__isnull=True).exclude(pattern__exact='').filter(auto=True) tileorigins = getTileOrigins(proxy=True) for tileorigin in tileorigins: match = match_pattern_url(tileorigin.pattern, raw_url) if match: match_regex = match match_tileorigin = tileorigin break if match_tileorigin and match_regex: to = match_tileorigin if to.multiple: slug = getRegexValue(match_regex, 'slug') ts_url = to.url.replace('{slug}', slug) #print "ts_url: "+ts_url if TileSource.objects.filter(url=ts_url).count() > 0: print "Error: This souldn't happen. You should have matched the tilesource earlier so you don't duplicate" return None exts = string_to_list(to.extensions) ts_pattern = url_to_pattern(ts_url, extensions=exts) ts = TileSource(auto=True,url=ts_url,pattern=ts_pattern,name=slug,type=to.type,extensions=exts,origin=to) ts.save() reloadTileSources(proxy=False) reloadTileSources(proxy=True) return proxy_tilesource(request, ts, match_regex) else: ts = TileSource(auto=True,url=to.url,pattern=to.pattern,name=to.name,type=to.type,extensions=to.extensions) ts.save() reloadTileSources(proxy=False) reloadTileSources(proxy=True) return proxy_tilesource(request, ts, match_regex) else: return HttpResponse('No matching tile origin or tile source found.',RequestContext(request, {}), status=404)