NagyZoltanPeter 60ee9b1335
Introduce api/send
Added events and requests for support.
Reworked delivery_monitor into a featured devlivery_service, that
- supports relay publish and lightpush depending on configuration but with fallback options
- if available and configured it utilizes store api to confirm message delivery
- emits message delivery events accordingly

Notice: There are parts still in WIP and needs review and follow ups.

prepare for use in api_example
2026-01-25 23:45:37 +01:00

58 lines
1.9 KiB
Nim

{.push raises: [].}
import results
import
../waku_core,
../waku_relay,
./common,
../waku_rln_relay,
../waku_rln_relay/protocol_types
import std/times, libp2p/peerid, stew/byteutils
proc checkAndGenerateRLNProof*(
rlnPeer: Option[WakuRLNRelay], message: WakuMessage
): Result[WakuMessage, string] =
# check if the message already has RLN proof
if message.proof.len > 0:
return ok(message)
if rlnPeer.isNone():
notice "Publishing message without RLN proof"
return ok(message)
# generate and append RLN proof
let
time = getTime().toUnix()
senderEpochTime = float64(time)
var msgWithProof = message
?(rlnPeer.get().appendRLNProof(msgWithProof, senderEpochTime))
return ok(msgWithProof)
proc getNilPushHandler*(): PushMessageHandler =
return proc(
pubsubTopic: string, message: WakuMessage
): Future[WakuLightPushResult] {.async.} =
return lightpushResultInternalError("no waku relay found")
proc getRelayPushHandler*(
wakuRelay: WakuRelay, rlnPeer: Option[WakuRLNRelay] = none[WakuRLNRelay]()
): PushMessageHandler =
return proc(
pubsubTopic: string, message: WakuMessage
): Future[WakuLightPushResult] {.async.} =
# append RLN proof
let msgWithProof = checkAndGenerateRLNProof(rlnPeer, message).valueOr:
return lighpushErrorResult(LightPushErrorCode.OUT_OF_RLN_PROOF, error)
(await wakuRelay.validateMessage(pubSubTopic, msgWithProof)).isOkOr:
return lighpushErrorResult(LightPushErrorCode.INVALID_MESSAGE, $error)
let publishedResult = (await wakuRelay.publish(pubsubTopic, msgWithProof)).valueOr:
let msgHash = computeMessageHash(pubsubTopic, message).to0xHex()
notice "Lightpush request has not been published to any peers",
msg_hash = msgHash, reason = $error
return mapPubishingErrorToPushResult(error)
return lightpushSuccessResult(publishedResult.uint32)