253 lines
8.2 KiB
Nim
253 lines
8.2 KiB
Nim
## Nim-LibP2P
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## Copyright (c) 2019 Status Research & Development GmbH
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## Licensed under either of
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## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
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## * MIT license ([LICENSE-MIT](LICENSE-MIT))
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## at your option.
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## This file may not be copied, modified, or distributed except according to
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## those terms.
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import options
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import chronicles
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import messages,
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../../../peerid,
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../../../utility,
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../../../protobuf/minprotobuf
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logScope:
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topics = "pubsubprotobuf"
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proc write*(pb: var ProtoBuffer, field: int, graft: ControlGraft) =
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var ipb = initProtoBuffer()
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ipb.write(1, graft.topicID)
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ipb.finish()
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pb.write(field, ipb)
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proc write*(pb: var ProtoBuffer, field: int, prune: ControlPrune) =
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var ipb = initProtoBuffer()
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ipb.write(1, prune.topicID)
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ipb.finish()
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pb.write(field, ipb)
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proc write*(pb: var ProtoBuffer, field: int, ihave: ControlIHave) =
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var ipb = initProtoBuffer()
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ipb.write(1, ihave.topicID)
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for mid in ihave.messageIDs:
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ipb.write(2, mid)
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ipb.finish()
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pb.write(field, ipb)
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proc write*(pb: var ProtoBuffer, field: int, iwant: ControlIWant) =
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var ipb = initProtoBuffer()
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for mid in iwant.messageIDs:
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ipb.write(1, mid)
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if len(ipb.buffer) > 0:
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ipb.finish()
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pb.write(field, ipb)
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proc write*(pb: var ProtoBuffer, field: int, control: ControlMessage) =
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var ipb = initProtoBuffer()
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for ihave in control.ihave:
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ipb.write(1, ihave)
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for iwant in control.iwant:
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ipb.write(2, iwant)
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for graft in control.graft:
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ipb.write(3, graft)
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for prune in control.prune:
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ipb.write(4, prune)
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if len(ipb.buffer) > 0:
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ipb.finish()
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pb.write(field, ipb)
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proc write*(pb: var ProtoBuffer, field: int, subs: SubOpts) =
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var ipb = initProtoBuffer()
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ipb.write(1, uint64(subs.subscribe))
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ipb.write(2, subs.topic)
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ipb.finish()
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pb.write(field, ipb)
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proc encodeMessage*(msg: Message): seq[byte] =
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var pb = initProtoBuffer()
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if len(msg.fromPeer) > 0:
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pb.write(1, msg.fromPeer)
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pb.write(2, msg.data)
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if len(msg.seqno) > 0:
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pb.write(3, msg.seqno)
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for topic in msg.topicIDs:
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pb.write(4, topic)
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if len(msg.signature) > 0:
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pb.write(5, msg.signature)
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if len(msg.key) > 0:
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pb.write(6, msg.key)
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pb.finish()
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pb.buffer
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proc write*(pb: var ProtoBuffer, field: int, msg: Message) =
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pb.write(field, encodeMessage(msg))
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proc decodeGraft*(pb: ProtoBuffer): ProtoResult[ControlGraft] {.
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inline.} =
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trace "decodeGraft: decoding message"
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var control = ControlGraft()
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if ? pb.getField(1, control.topicId):
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trace "decodeGraft: read topicId", topic_id = control.topicId
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else:
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trace "decodeGraft: topicId is missing"
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ok(control)
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proc decodePrune*(pb: ProtoBuffer): ProtoResult[ControlPrune] {.
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inline.} =
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trace "decodePrune: decoding message"
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var control = ControlPrune()
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if ? pb.getField(1, control.topicId):
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trace "decodePrune: read topicId", topic_id = control.topicId
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else:
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trace "decodePrune: topicId is missing"
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ok(control)
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proc decodeIHave*(pb: ProtoBuffer): ProtoResult[ControlIHave] {.
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inline.} =
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trace "decodeIHave: decoding message"
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var control = ControlIHave()
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if ? pb.getField(1, control.topicId):
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trace "decodeIHave: read topicId", topic_id = control.topicId
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else:
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trace "decodeIHave: topicId is missing"
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if ? pb.getRepeatedField(2, control.messageIDs):
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trace "decodeIHave: read messageIDs", message_ids = control.messageIDs
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else:
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trace "decodeIHave: no messageIDs"
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ok(control)
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proc decodeIWant*(pb: ProtoBuffer): ProtoResult[ControlIWant] {.inline.} =
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trace "decodeIWant: decoding message"
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var control = ControlIWant()
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if ? pb.getRepeatedField(1, control.messageIDs):
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trace "decodeIWant: read messageIDs", message_ids = control.messageIDs
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else:
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trace "decodeIWant: no messageIDs"
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ok(control)
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proc decodeControl*(pb: ProtoBuffer): ProtoResult[Option[ControlMessage]] {.
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inline.} =
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trace "decodeControl: decoding message"
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var buffer: seq[byte]
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if ? pb.getField(3, buffer):
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var control: ControlMessage
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var cpb = initProtoBuffer(buffer)
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var ihavepbs: seq[seq[byte]]
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var iwantpbs: seq[seq[byte]]
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var graftpbs: seq[seq[byte]]
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var prunepbs: seq[seq[byte]]
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if ? cpb.getRepeatedField(1, ihavepbs):
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for item in ihavepbs:
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control.ihave.add(? decodeIHave(initProtoBuffer(item)))
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if ? cpb.getRepeatedField(2, iwantpbs):
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for item in iwantpbs:
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control.iwant.add(? decodeIWant(initProtoBuffer(item)))
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if ? cpb.getRepeatedField(3, graftpbs):
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for item in graftpbs:
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control.graft.add(? decodeGraft(initProtoBuffer(item)))
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if ? cpb.getRepeatedField(4, prunepbs):
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for item in prunepbs:
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control.prune.add(? decodePrune(initProtoBuffer(item)))
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trace "decodeControl: message statistics", graft_count = len(control.graft),
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prune_count = len(control.prune),
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ihave_count = len(control.ihave),
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iwant_count = len(control.iwant)
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ok(some(control))
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else:
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ok(none[ControlMessage]())
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proc decodeSubscription*(pb: ProtoBuffer): ProtoResult[SubOpts] {.inline.} =
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trace "decodeSubscription: decoding message"
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var subflag: uint64
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var sub = SubOpts()
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if ? pb.getField(1, subflag):
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sub.subscribe = bool(subflag)
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trace "decodeSubscription: read subscribe", subscribe = subflag
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else:
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trace "decodeSubscription: subscribe is missing"
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if ? pb.getField(2, sub.topic):
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trace "decodeSubscription: read topic", topic = sub.topic
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else:
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trace "decodeSubscription: topic is missing"
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ok(sub)
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proc decodeSubscriptions*(pb: ProtoBuffer): ProtoResult[seq[SubOpts]] {.
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inline.} =
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trace "decodeSubscriptions: decoding message"
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var subpbs: seq[seq[byte]]
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var subs: seq[SubOpts]
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let res = ? pb.getRepeatedField(1, subpbs)
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if res:
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trace "decodeSubscriptions: read subscriptions", count = len(subpbs)
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for item in subpbs:
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subs.add(? decodeSubscription(initProtoBuffer(item)))
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if len(subs) == 0:
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trace "decodeSubscription: no subscriptions found"
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ok(subs)
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proc decodeMessage*(pb: ProtoBuffer): ProtoResult[Message] {.inline.} =
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trace "decodeMessage: decoding message"
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var msg: Message
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if ? pb.getField(1, msg.fromPeer):
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trace "decodeMessage: read fromPeer", fromPeer = msg.fromPeer
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else:
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trace "decodeMessage: fromPeer is missing"
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if ? pb.getField(2, msg.data):
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trace "decodeMessage: read data", data = msg.data.shortLog()
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else:
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trace "decodeMessage: data is missing"
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if ? pb.getField(3, msg.seqno):
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trace "decodeMessage: read seqno", seqno = msg.seqno
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else:
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trace "decodeMessage: seqno is missing"
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if ? pb.getRepeatedField(4, msg.topicIDs):
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trace "decodeMessage: read topics", topic_ids = msg.topicIDs
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else:
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trace "decodeMessage: topics are missing"
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if ? pb.getField(5, msg.signature):
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trace "decodeMessage: read signature", signature = msg.signature.shortLog()
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else:
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trace "decodeMessage: signature is missing"
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if ? pb.getField(6, msg.key):
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trace "decodeMessage: read public key", key = msg.key.shortLog()
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else:
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trace "decodeMessage: public key is missing"
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ok(msg)
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proc decodeMessages*(pb: ProtoBuffer): ProtoResult[seq[Message]] {.inline.} =
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trace "decodeMessages: decoding message"
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var msgpbs: seq[seq[byte]]
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var msgs: seq[Message]
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if ? pb.getRepeatedField(2, msgpbs):
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trace "decodeMessages: read messages", count = len(msgpbs)
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for item in msgpbs:
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msgs.add(? decodeMessage(initProtoBuffer(item)))
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else:
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trace "decodeMessages: no messages found"
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ok(msgs)
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proc encodeRpcMsg*(msg: RPCMsg): seq[byte] =
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trace "encodeRpcMsg: encoding message", msg = msg.shortLog()
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var pb = initProtoBuffer()
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for item in msg.subscriptions:
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pb.write(1, item)
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for item in msg.messages:
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pb.write(2, item)
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if msg.control.isSome():
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pb.write(3, msg.control.get())
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if len(pb.buffer) > 0:
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pb.finish()
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pb.buffer
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proc decodeRpcMsg*(msg: seq[byte]): ProtoResult[RPCMsg] {.inline.} =
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trace "decodeRpcMsg: decoding message", msg = msg.shortLog()
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var pb = initProtoBuffer(msg)
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var rpcMsg: RPCMsg
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rpcMsg.messages = ? pb.decodeMessages()
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rpcMsg.subscriptions = ? pb.decodeSubscriptions()
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rpcMsg.control = ? pb.decodeControl()
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ok(rpcMsg)
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