mirror of
https://github.com/logos-messaging/logos-messaging-nim.git
synced 2026-01-02 14:03:06 +00:00
58 lines
2.0 KiB
Nim
58 lines
2.0 KiB
Nim
{.push raises: [].}
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import
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../waku_core,
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../waku_relay,
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./common,
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./protocol_metrics,
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../waku_rln_relay,
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../waku_rln_relay/protocol_types
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import std/times, libp2p/peerid, stew/byteutils
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proc checkAndGenerateRLNProof*(
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rlnPeer: Option[WakuRLNRelay], message: WakuMessage
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): Result[WakuMessage, string] =
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# check if the message already has RLN proof
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if message.proof.len > 0:
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return ok(message)
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if rlnPeer.isNone():
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notice "Publishing message without RLN proof"
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return ok(message)
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# generate and append RLN proof
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let
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time = getTime().toUnix()
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senderEpochTime = float64(time)
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var msgWithProof = message
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?(rlnPeer.get().appendRLNProof(msgWithProof, senderEpochTime))
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return ok(msgWithProof)
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proc getNilPushHandler*(): PushMessageHandler =
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return proc(
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peer: PeerId, pubsubTopic: string, message: WakuMessage
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): Future[WakuLightPushResult[void]] {.async.} =
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return err("no waku relay found")
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proc getRelayPushHandler*(
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wakuRelay: WakuRelay, rlnPeer: Option[WakuRLNRelay] = none[WakuRLNRelay]()
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): PushMessageHandler =
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return proc(
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peer: PeerId, pubsubTopic: string, message: WakuMessage
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): Future[WakuLightPushResult[void]] {.async.} =
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# append RLN proof
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let msgWithProof = ?checkAndGenerateRLNProof(rlnPeer, message)
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?(await wakuRelay.validateMessage(pubSubTopic, msgWithProof))
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(await wakuRelay.publish(pubsubTopic, msgWithProof)).isOkOr:
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## Agreed change expected to the lightpush protocol to better handle such case. https://github.com/waku-org/pm/issues/93
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let msgHash = computeMessageHash(pubsubTopic, message).to0xHex()
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notice "Lightpush request has not been published to any peers",
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msg_hash = msgHash, reason = $error
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# for legacy lightpush we do not detail the reason towards clients. All error during publish result in not-published-to-any-peer
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# this let client of the legacy protocol to react as they did so far.
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return err(protocol_metrics.notPublishedAnyPeer)
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return ok()
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