public async Task <Cid> RemoveAsync(Cid id,
bool ignoreNonexistent = false,
CancellationToken cancel = default)
{
if (id.Hash.IsIdentityHash)
{
return(id);
}
if (await Store.ExistsAsync(id, cancel).ConfigureAwait(false))
{
await Store.RemoveAsync(id, cancel).ConfigureAwait(false);
await PinApi.RemoveAsync(id, false, cancel).ConfigureAwait(false);
return(id);
}
if (ignoreNonexistent)
{
return(null);
}
throw new KeyNotFoundException($"Block '{id.Encode()}' does not exist.");
}
public async Task <Cid> PutAsync(byte[] data,
string contentType = Cid.DefaultContentType,
string multiHash = MultiHash.DefaultAlgorithmName,
string encoding = MultiBase.DefaultAlgorithmName,
bool pin = false,
CancellationToken cancel = default)
{
if (data.Length > _dfsOptions.Block.MaxBlockSize)
{
throw new ArgumentOutOfRangeException($"data.Length",
$@"Block length can not exceed {_dfsOptions.Block.MaxBlockSize.ToString()}.");
}
// Small enough for an inline CID?
if (_dfsOptions.Block.AllowInlineCid && data.Length <= _dfsOptions.Block.InlineCidLimit)
{
return(new Cid
{
ContentType = contentType,
Hash = MultiHash.ComputeHash(data, "identity")
});
}
// CID V1 encoding defaulting to base32 which is not
var cid = new Cid
{
ContentType = contentType,
Hash = MultiHash.ComputeHash(data, multiHash)
};
if (encoding != "base58btc")
{
cid.Encoding = encoding;
}
var block = new DataBlock
{
DataBytes = data,
Id = cid,
Size = data.Length
};
if (await Store.ExistsAsync(cid, cancel).ConfigureAwait(false))
{
Log.DebugFormat("Block '{0}' already present", cid);
}
else
{
await Store.PutAsync(cid, block, cancel).ConfigureAwait(false);
if (_dfsState.IsStarted)
{
await _dhtApi.ProvideAsync(cid, false, cancel).ConfigureAwait(false);
}
Log.DebugFormat("Added block '{0}'", cid);
}
// Inform the BitSwap service.
_bitSwapApi.FoundBlock(block);
// To pin or not.
if (pin)
{
await PinApi.AddAsync(cid, false, cancel).ConfigureAwait(false);
}
else
{
await PinApi.RemoveAsync(cid, false, cancel).ConfigureAwait(false);
}
return(cid);
}