def image(request,sha,size,basename,ext):
# TODO: handle etags
# TODO: handle if-modified-since headers
# TODO: send image dimensions in headers
# TODO: detect noop resizes and 301 to existing ones
# instead of creating duplicate files
ext = ext.lower()
if ext == "jpeg":
ext = "jpg"
dirpath = full_path_from_hash(sha)
full_filename = "image.%s" % ext
if size == "full":
filename = full_filename
else:
size = normalize_size_format(size)
filename = "%s.%s" % (size,ext)
if not os.path.exists(dirpath):
# we don't have it on this node, let's check the ring
r = read_order(long(sha,16))
for node in r:
if node.uuid == settings.CLUSTER['uuid']:
# we already know that we don't have it
continue
try:
resp,data = GET(node.base_url + "retrieve/%s/%s/%s/" % (sha,size,ext),resp=True)
if resp['status'] == '200':
mimes = dict(jpg="image/jpeg",gif="image/gif",png="image/png")
return HttpResponse(data,mimes[ext])
except Exception, e:
if settings.DEBUG: print str(e)
# we don't have it and none of the nodes in the ring have it...
raise Http404
def image_info(request,sha,size,basename,ext):
ext = ext.lower()
if ext == "jpeg":
ext = "jpg"
dirpath = full_path_from_hash(sha)
full_filename = "image.%s" % ext
if size == "full":
filename = full_filename
else:
size = normalize_size_format(size)
filename = "%s.%s" % (size,ext)
data = dict(sha=sha,size=size,basename=basename,ext=ext)
data['local'] = True
other_nodes = []
if not os.path.exists(dirpath):
data['local'] = False
r = read_order(long(sha,16))
data['ring'] = r
for node in r:
node_response = dict(node=node)
if node.uuid == settings.CLUSTER['uuid']:
# we already know that we don't have it
continue
try:
resp,ndata = GET(node.base_url + "retrieve_info/%s/%s/%s/" % (sha,size,ext),resp=True)
if resp['status'] == '200':
node_response['response'] = simplejson.loads(ndata)
node_response["status"] = resp['status']
except Exception, e:
if settings.DEBUG: print str(e)
other_nodes.append(node_response)