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Implement cache management through cache/list and cache/delete
API REST methods.
The view corresponds to the URL action/cache and contains three
main parts:
- Free cache available in the client's bubbles.
- Image selection form to request the deletion and view the
client with that image in cache.
- Cache details per client to see total, used and available cache.
The main usecase for the view is the removal of cache to make room
for new images in clients with slow connections. Checking clients
where available cache space is not enough to hold the new image and
then requesting removal of specific images.
The html template receives the following structures from the view:
storage_data[ip] = {'used': 223452345,
'total': 2345234523452}
client_images[ip] = [f'{image_name}.{image_checksum}', ...]
image_data[f'{image_name}.{image_checksum}'] = {
clients: ['192.168.0.1', ...],
size: 34534530850,
name: image_name,
}
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