refactor!: resolve ens

status/statusgo_backend_new/core.nim

@@ -38,4 +38,8 @@ proc callPrivateRPC*(methodName: string, payload = %* []): RpcResponse[JsonNode]
     error "error doing rpc request", methodName = methodName, exception=e.msg
     raise newException(RpcException, e.msg)
     
+proc signMessage*(rpcParams: string): string =
+  return $status_go.signMessage(rpcParams)
 
+proc signTypedData*(data: string, address: string, password: string): string =
+  return $status_go.signTypedData(data, address, password)

status/statusgo_backend_new/ens.nim

@@ -0,0 +1,59 @@
+import sequtils
+import strformat
+import strutils
+import nimcrypto
+import json
+import json_serialization
+import tables
+import stew/byteutils
+import unicode
+import algorithm
+import web3/[ethtypes, conversions], stew/byteutils, stint
+import chronicles, libp2p/[multihash, multicodec, cid]
+import ./eth
+
+proc namehash*(ensName:string): string =
+  let name = ensName.toLower()
+  var node:array[32, byte]
+
+  node.fill(0)
+  var parts = name.split(".")
+  for i in countdown(parts.len - 1,0):
+    let elem = keccak_256.digest(parts[i]).data
+    var concatArrays: array[64, byte]
+    concatArrays[0..31] = node
+    concatArrays[32..63] = elem
+    node = keccak_256.digest(concatArrays).data
+
+  result = "0x" & node.toHex()
+
+const registry* = "0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e"
+const resolver_signature = "0x0178b8bf"
+proc resolver*(usernameHash: string): string =
+  let payload = %* [{
+    "to": registry,
+    "from": "0x0000000000000000000000000000000000000000",
+    "data": fmt"{resolver_signature}{userNameHash}"
+  }, "latest"]
+
+  var resolverAddr = eth.call(payload).result.getStr()
+  resolverAddr.removePrefix("0x000000000000000000000000")
+  result = "0x" & resolverAddr
+
+const contenthash_signature = "0xbc1c58d1" # contenthash(bytes32)
+proc contenthash*(ensAddr: string): string =
+  var ensHash = namehash(ensAddr)
+  ensHash.removePrefix("0x")
+  let ensResolver = resolver(ensHash)
+  let payload = %* [{
+    "to": ensResolver,
+    "from": "0x0000000000000000000000000000000000000000",
+    "data": fmt"{contenthash_signature}{ensHash}"
+  }, "latest"]
+
+  let bytesResponse =  eth.call(payload).result.getStr()
+  if bytesResponse == "0x":
+    return ""
+
+  let size = fromHex(Stuint[256], bytesResponse[66..129]).truncate(int)
+  result = bytesResponse[130..129+size*2]

status/statusgo_backend_new/eth.nim

@@ -21,3 +21,6 @@ proc getTokenBalance*(tokenAddress: string, accountAddress: string): RpcResponse
     "to": tokenAddress, "from": accountAddress, "data": fmt"0x70a08231000000000000000000000000{postfixedAccount}"
   }, "latest"]
   return core.callPrivateRPC("eth_call", payload)
+
+proc call*(payload = %* []): RpcResponse[JsonNode] {.raises: [Exception].} =
+  return core.callPrivateRPC("eth_call", payload)