105 lines
2.5 KiB
Nim
105 lines
2.5 KiB
Nim
## 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 std/sequtils
|
|
|
|
import pkg/chronos
|
|
import pkg/libp2p
|
|
import pkg/chronicles
|
|
import pkg/questionable
|
|
import pkg/questionable/results
|
|
import pkg/contractabi/address as ca
|
|
import pkg/protobuf_serialization
|
|
|
|
import ./stpproto
|
|
import ../discovery
|
|
|
|
const
|
|
Codec* = "/dagger/storageproofs/1.0.0"
|
|
MaxMessageSize* = 1 shl 22 # 4MB
|
|
|
|
logScope:
|
|
topics = "dagger storageproofs network"
|
|
|
|
type
|
|
TagsHandler* = proc(msg: TagsMessage):
|
|
Future[void] {.raises: [Defect], gcsafe.}
|
|
|
|
StpNetwork* = ref object of LPProtocol
|
|
switch*: Switch
|
|
discovery*: Discovery
|
|
tagsHandle*: TagsHandler
|
|
|
|
proc uploadTags*(
|
|
self: StpNetwork,
|
|
cid: Cid,
|
|
indexes: seq[int],
|
|
tags: seq[seq[byte]],
|
|
host: ca.Address): Future[?!void] {.async.} =
|
|
# Upload tags to `host`
|
|
#
|
|
|
|
var msg = TagsMessage(cid: cid.data.buffer)
|
|
for i in indexes:
|
|
msg.tags.add(Tag(idx: i, tag: tags[i]))
|
|
|
|
let
|
|
peers = await self.discovery.find(host)
|
|
connFut = await one(peers.mapIt(
|
|
self.switch.dial(
|
|
it.data.peerId,
|
|
it.data.addresses.mapIt( it.address ),
|
|
@[Codec])))
|
|
conn = await connFut
|
|
|
|
try:
|
|
await conn.writeLp(
|
|
Protobuf.encode(StorageProofsMessage(tagsMsg: msg)))
|
|
except CancelledError as exc:
|
|
raise exc
|
|
except CatchableError as exc:
|
|
trace "Exception submitting tags", cid = $cid, exc = exc.msg
|
|
return failure(exc.msg)
|
|
finally:
|
|
await conn.close()
|
|
|
|
return success()
|
|
|
|
method init*(self: StpNetwork) =
|
|
## Perform protocol initialization
|
|
##
|
|
|
|
proc handle(conn: Connection, proto: string) {.async, gcsafe.} =
|
|
try:
|
|
let
|
|
msg = await conn.readLp(MaxMessageSize)
|
|
message = Protobuf.decode(msg, StorageProofsMessage)
|
|
|
|
if message.tagsMsg.tags.len > 0 and not self.tagsHandle.isNil:
|
|
await self.tagsHandle(message.tagsMsg)
|
|
except CatchableError as exc:
|
|
trace "Exception handling Storage Proofs message", exc = exc.msg
|
|
finally:
|
|
await conn.close()
|
|
|
|
self.handler = handle
|
|
self.codec = Codec
|
|
|
|
proc new*(
|
|
T: type StpNetwork,
|
|
switch: Switch,
|
|
discovery: Discovery): StpNetwork =
|
|
let
|
|
self = StpNetwork(
|
|
switch: switch,
|
|
discovery: discovery)
|
|
|
|
self.init()
|
|
self
|