143 lines
4.7 KiB
Nim
143 lines
4.7 KiB
Nim
# fluffy
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# Copyright (c) 2021-2024 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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{.push raises: [].}
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import
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std/[sequtils, json],
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json_rpc/rpcserver,
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json_serialization/std/tables,
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stew/byteutils,
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../network/wire/portal_protocol,
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./rpc_types
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{.warning[UnusedImport]: off.}
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import json_rpc/errors
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export tables
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# Portal Network JSON-RPC implementation as per specification:
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# https://github.com/ethereum/portal-network-specs/tree/master/jsonrpc
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ContentInfo.useDefaultSerializationIn JrpcConv
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TraceContentLookupResult.useDefaultSerializationIn JrpcConv
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TraceObject.useDefaultSerializationIn JrpcConv
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NodeMetadata.useDefaultSerializationIn JrpcConv
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TraceResponse.useDefaultSerializationIn JrpcConv
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proc installPortalHistoryApiHandlers*(rpcServer: RpcServer, p: PortalProtocol) =
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rpcServer.rpc("portal_historyFindContent") do(
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enr: Record, contentKey: string
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) -> JsonString:
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let
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node = toNodeWithAddress(enr)
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foundContentResult =
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await p.findContent(node, ContentKeyByteList.init(hexToSeqByte(contentKey)))
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if foundContentResult.isErr():
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raise newException(ValueError, $foundContentResult.error)
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else:
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let foundContent = foundContentResult.get()
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case foundContent.kind
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of Content:
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let res = ContentInfo(
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content: foundContent.content.to0xHex(), utpTransfer: foundContent.utpTransfer
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)
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return JrpcConv.encode(res).JsonString
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of Nodes:
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let enrs = foundContent.nodes.map(
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proc(n: Node): Record =
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n.record
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)
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let jsonEnrs = JrpcConv.encode(enrs)
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return ("{\"enrs\":" & jsonEnrs & "}").JsonString
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rpcServer.rpc("portal_historyOffer") do(
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enr: Record, contentItems: seq[ContentItem]
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) -> string:
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let node = toNodeWithAddress(enr)
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var contentItemsToOffer: seq[ContentKV]
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for contentItem in contentItems:
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let
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contentKey = hexToSeqByte(contentItem[0])
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contentValue = hexToSeqByte(contentItem[1])
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contentKV = ContentKV(
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contentKey: ContentKeyByteList.init(contentKey), content: contentValue
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)
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contentItemsToOffer.add(contentKV)
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let offerResult = (await p.offer(node, contentItemsToOffer)).valueOr:
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raise newException(ValueError, $error)
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SSZ.encode(offerResult).to0xHex()
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rpcServer.rpc("portal_historyGetContent") do(contentKey: string) -> ContentInfo:
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let
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key = ContentKeyByteList.init(hexToSeqByte(contentKey))
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contentId = p.toContentId(key).valueOr:
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raise invalidKeyErr()
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contentResult = (await p.contentLookup(key, contentId)).valueOr:
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raise contentNotFoundErr()
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return ContentInfo(
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content: contentResult.content.to0xHex(), utpTransfer: contentResult.utpTransfer
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)
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rpcServer.rpc("portal_historyTraceGetContent") do(
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contentKey: string
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) -> TraceContentLookupResult:
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let
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key = ContentKeyByteList.init(hexToSeqByte(contentKey))
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contentId = p.toContentId(key).valueOr:
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raise invalidKeyErr()
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res = await p.traceContentLookup(key, contentId)
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# TODO: Might want to restructure the lookup result here. Potentially doing
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# the json conversion in this module.
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if res.content.isSome():
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return res
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else:
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let data = Opt.some(JrpcConv.encode(res.trace).JsonString)
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raise contentNotFoundErrWithTrace(data)
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rpcServer.rpc("portal_historyStore") do(
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contentKey: string, contentValue: string
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) -> bool:
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let
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key = ContentKeyByteList.init(hexToSeqByte(contentKey))
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contentValueBytes = hexToSeqByte(contentValue)
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contentId = p.toContentId(key).valueOr:
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raise invalidKeyErr()
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p.storeContent(key, contentId, contentValueBytes)
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rpcServer.rpc("portal_historyLocalContent") do(contentKey: string) -> string:
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let
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key = ContentKeyByteList.init(hexToSeqByte(contentKey))
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contentId = p.toContentId(key).valueOr:
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raise invalidKeyErr()
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contentResult = p.dbGet(key, contentId).valueOr:
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raise contentNotFoundErr()
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return contentResult.to0xHex()
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rpcServer.rpc("portal_historyGossip") do(
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contentKey: string, contentValue: string
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) -> int:
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let
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key = hexToSeqByte(contentKey)
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content = hexToSeqByte(contentValue)
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contentKeys = ContentKeysList(@[ContentKeyByteList.init(key)])
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numberOfPeers =
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await p.neighborhoodGossip(Opt.none(NodeId), contentKeys, @[content])
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return numberOfPeers
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