nim-codex/codex/storageproofs/storageproofs.nim

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## Nim-Dagger
## Copyright (c) 2022 Status Research & Development GmbH
## Licensed under either of
## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
## * MIT license ([LICENSE-MIT](LICENSE-MIT))
## at your option.
## This file may not be copied, modified, or distributed except according to
## those terms.
import pkg/chronos
import pkg/chronicles
import pkg/questionable
import pkg/questionable/results
import pkg/contractabi/address as ca
import ../stores
import ../manifest
import ../streams
import ../utils
import ./por
import ./stpnetwork
import ./stpproto
import ./stpstore
import ./timing
export stpnetwork, stpstore, por, timing, stpproto
type
StorageProofs* = object
store*: BlockStore
network*: StpNetwork
stpStore*: StpStore
proc upload*(
self: StorageProofs,
cid: Cid,
indexes: seq[int],
host: ca.Address): Future[?!void] {.async.} =
## Upload authenticators
##
without por =? (await self.stpStore.retrieve(cid)):
trace "Unable to retrieve por data from store", cid
return failure("Unable to retrieve por data from store")
return await self.network.uploadTags(
cid,
indexes,
por.authenticators,
host)
# proc proof*() =
# discard
# proc verify*() =
# discard
proc setupProofs*(
self: StorageProofs,
manifest: Manifest): Future[?!void] {.async.} =
## Setup storage authentication
##
without cid =? manifest.cid:
return failure("Unable to retrieve Cid from manifest!")
let
(spk, ssk) = keyGen()
por = await PoR.init(
StoreStream.new(self.store, manifest),
ssk,
spk,
manifest.blockSize)
return await self.stpStore.store(por.toMessage(), cid)
proc init*(
T: type StorageProofs,
network: StpNetwork,
store: BlockStore,
stpStore: StpStore): StorageProofs =
var
self = T(
store: store,
stpStore: stpStore,
network: network)
proc tagsHandler(msg: TagsMessage) {.async, gcsafe.} =
try:
await self.stpStore.store(msg.cid, msg.tags).tryGet()
trace "Stored tags", cid = $msg.cid, tags = msg.tags.len
except CatchableError as exc:
trace "Exception attempting to store tags", exc = exc.msg
self.network.tagsHandler = tagsHandler
self