Exemplo n.º 1
0
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
Exemplo n.º 2
0
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)