rebase and various fixes

- port to new APIs
- added copyright headers
- bumped the copyright interval in modified files
- fixed tests
- reorganised imports
- normalised function names
- deleted some trailing space
- added test_rpc to all_tests
- assert() -> doAssert()
- moved the RPC port in a constant for the test suite

nimbus/rpc/p2p.nim

@@ -1,5 +1,5 @@
 # Nimbus
-# Copyright (c) 2018 Status Research & Development GmbH
+# Copyright (c) 2018-2019 Status Research & Development GmbH
 # Licensed under either of
 #  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
 #  * MIT license ([LICENSE-MIT](LICENSE-MIT))
@@ -13,7 +13,7 @@ import
   eth_common, eth_p2p, eth_keys, eth_trie/db, rlp,
   ../utils/header, ../transaction, ../config, ../vm_state, ../constants, ../vm_types,
   ../vm_state_transactions, ../utils/addresses,
-  ../vm/[interpreter_dispatch, computation],
+  ../db/[db_chain, state_db, storage_types],
   rpc_types, rpc_utils, ../vm/[message, computation, interpreter_dispatch]
 
 #[
@@ -37,53 +37,6 @@ proc binarySearchGas(vmState: var BaseVMState, transaction: Transaction, sender:
   proc dummyComputation(vmState: var BaseVMState, transaction: Transaction, sender: EthAddress): BaseComputation =
     # Note that vmState may be altered
     setupComputation(
-        vmState.blockHeader,
-        vmState,
-        transaction,
-        sender)
-  
-  proc dummyTransaction(gasLimit, gasPrice: GasInt, destination: EthAddress, value: UInt256): Transaction =
-    Transaction(
-      accountNonce: 0.AccountNonce,
-      gasPrice: gasPrice,
-      gasLimit: gasLimit,
-      to: destination,
-      value: value
-    )
-  var
-    hiGas = vmState.gasLimit
-    loGas = transaction.intrinsicGas
-    gasPrice = transaction.gasPrice # TODO: Or zero?
-  
-  proc tryTransaction(vmState: var BaseVMState, gasLimit: GasInt): bool =
-    var
-      spoofTransaction = dummyTransaction(gasLimit, gasPrice, transaction.to, transaction.value)
-      computation = vmState.dummyComputation(spoofTransaction, sender)
-    computation.executeOpcodes
-    if not computation.isError:
-      return true
-
-  if vmState.tryTransaction(loGas):
-    return loGas
-  if not vmState.tryTransaction(hiGas):
-    return 0.GasInt # TODO: Reraise error from computation
-
-  var
-    minVal = vmState.gasLimit
-    maxVal = transaction.intrinsicGas
-  while loGas - hiGas > tolerance:
-    let midPoint = (loGas + hiGas) div 2
-    if vmState.tryTransaction(midPoint):
-      minVal = midPoint
-    else:
-      maxVal = midPoint
-  result = minVal
-
-proc binarySearchGas(vmState: var BaseVMState, transaction: Transaction, sender: EthAddress, gasPrice: GasInt, tolerance = 1): GasInt =
-  proc dummyComputation(vmState: var BaseVMState, transaction: Transaction, sender: EthAddress): BaseComputation =
-    # Note that vmState may be altered
-    setupComputation(
-        vmState.blockHeader,
         vmState,
         transaction,
         sender)
@@ -192,7 +145,7 @@ proc setupEthRpc*(node: EthereumNode, chain: BaseChainDB, rpcsrv: RpcServer) =
     let
       accountDb = accountDbFromTag(quantityTag)
       addrBytes = data.toAddress
-      balance = accountDb.get_balance(addrBytes)
+      balance = accountDb.getBalance(addrBytes)
 
     result = balance
 
@@ -391,7 +344,7 @@ proc setupEthRpc*(node: EthereumNode, chain: BaseChainDB, rpcsrv: RpcServer) =
       destination = if
         call.to.isSome: call.to.get.toAddress
         else: ZERO_ADDRESS
-      curState = chain.getStateDb(header.stateRoot, true)
+      curState = vmState.readOnlyStateDb()
       nonce = curState.getNonce(sender)
       value = if
         call.value.isSome: call.value.get

nimbus/vm/interpreter/opcodes_impl.nim

@@ -1,5 +1,5 @@
 # Nimbus
-# Copyright (c) 2018 Status Research & Development GmbH
+# Copyright (c) 2018-2019 Status Research & Development GmbH
 # Licensed under either of
 #  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
 #  * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
@@ -781,8 +781,8 @@ op selfDestruct, inline = false:
 
   computation.vmState.mutateStateDB:
     let
-      local_balance = db.get_balance(computation.msg.storage_address)
+      local_balance = db.getBalance(computation.msg.storage_address)
-      beneficiary_balance = db.get_balance(beneficiary)
+      beneficiary_balance = db.getBalance(beneficiary)
 
     # Transfer to beneficiary
     db.setBalance(beneficiary, local_balance + beneficiary_balance)

tests/all_tests.nim

@@ -1,5 +1,5 @@
 # Nimbus
-# Copyright (c) 2018 Status Research & Development GmbH
+# Copyright (c) 2018-2019 Status Research & Development GmbH
 # Licensed under either of
 #  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
 #  * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
@@ -17,4 +17,5 @@ import  ./test_code_stream,
         ./test_precompiles,
         ./test_generalstate_json,
         ./test_tracer_json,
-        ./test_persistblock_json
+        ./test_persistblock_json,
+        ./test_rpc

tests/rpcclient/ethcallsigs.nim

@@ -1,7 +1,17 @@
+# Nimbus
+# Copyright (c) 2018-2019 Status Research & Development GmbH
+# Licensed under either of
+#  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
+#  * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+# at your option. This file may not be copied, modified, or distributed except according to those terms.
+
 ## This module contains signatures for the Ethereum client RPCs.
 ## The signatures are not imported directly, but read and processed with parseStmt,
 ## then a procedure body is generated to marshal native Nim parameters to json and visa versa.
-import json, stint, eth_common, ../../nimbus/rpc/hexstrings, ../../nimbus/rpc/rpc_types
+import
+  json,
+  stint, eth_common,
+  ../../nimbus/rpc/hexstrings, ../../nimbus/rpc/rpc_types
 
 proc web3_clientVersion(): string
 proc web3_sha3(data: string): string

tests/rpcclient/test_hexstrings.nim

@@ -1,3 +1,10 @@
+# Nimbus
+# Copyright (c) 2018-2019 Status Research & Development GmbH
+# Licensed under either of
+#  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
+#  * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+# at your option. This file may not be copied, modified, or distributed except according to those terms.
+
 # Separated from main tests for brevity
 
 import unittest, ../../nimbus/rpc/hexstrings, json

tests/test_rpc.nim

@@ -1,15 +1,21 @@
+# Nimbus
+# Copyright (c) 2018-2019 Status Research & Development GmbH
+# Licensed under either of
+#  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
+#  * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+# at your option. This file may not be copied, modified, or distributed except according to those terms.
+
 import
-  unittest, json, strformat, nimcrypto, rlp, options,
+  unittest, json, strformat, options,
+  nimcrypto, rlp, eth_trie/db, eth_p2p, eth_keys,
   json_rpc/[rpcserver, rpcclient],
   ../nimbus/rpc/[common, p2p, hexstrings, rpc_types],
   ../nimbus/constants,
-  ../nimbus/nimbus/[vm_state, config],
+  ../nimbus/[vm_state, config],
   ../nimbus/db/[state_db, db_chain, storage_types], eth_common, byteutils,
   ../nimbus/p2p/chain,
   ../nimbus/genesis,
-  eth_trie/db,
+  ./rpcclient/test_hexstrings
-  eth_p2p, eth_keys
-import rpcclient/test_hexstrings
 
 # Perform checks for hex string validation
 doHexStrTests()
@@ -58,41 +64,41 @@ proc doTests =
   defaultGenesisBlockForNetwork(conf.net.networkId.toPublicNetwork()).commit(chain)
   state.mutateStateDB:
     db.setBalance(address, balance)
-  assert(canonicalHeadHashKey().toOpenArray in state.chainDb.db)
+  doAssert(canonicalHeadHashKey().toOpenArray in state.chainDb.db)
 
   # Create Ethereum RPCs
+  let RPC_PORT = 8545
   var
-    rpcServer = newRpcSocketServer(["localhost:8545"])
+    rpcServer = newRpcSocketServer(["localhost:" & $RPC_PORT])
     client = newRpcSocketClient()
   setupCommonRpc(rpcServer)
   setupEthRpc(ethNode, chain, rpcServer)
 
   # Begin tests
   rpcServer.start()
-  waitFor client.connect("localhost", Port(8545))
+  waitFor client.connect("localhost", Port(RPC_PORT))
 
+  # TODO: add more tests here
   suite "Remote Procedure Calls":
-    # TODO: Currently returning 'block not found' when fetching header in p2p, so cannot perform tests
     test "eth_call":
       let
         blockNum = state.blockheader.blockNumber
         callParams = EthCall(value: some(100.u256))
-      var r = waitFor client.eth_call(callParams, "0x" & blockNum.toHex)
+        r1 = waitFor client.eth_call(callParams, "0x" & blockNum.toHex)
-      echo r
+      check r1 == "0x"
     test "eth_getBalance":
-      expect ValueError:
+      let r2 = waitFor client.eth_getBalance(ZERO_ADDRESS.toEthAddressStr, "0x0")
-        # check error is raised on null address
+      check r2 == 0
-        var r = waitFor client.eth_getBalance(ZERO_ADDRESS.toEthAddressStr, "0x0")
 
       let blockNum = state.blockheader.blockNumber
-      var r = waitFor client.eth_getBalance(address.toEthAddressStr, "0x" & blockNum.toHex)
+      let r3 = waitFor client.eth_getBalance(address.toEthAddressStr, "0x" & blockNum.toHex)
-      echo r
+      check r3 == 0
     test "eth_estimateGas":
       let
         call = EthCall()
         blockNum = state.blockheader.blockNumber
-      var r = waitFor client.eth_estimateGas(call, "0x" & blockNum.toHex)
+        r4 = waitFor client.eth_estimateGas(call, "0x" & blockNum.toHex)
-      check r == 21_000
+      check r4 == 21_000
 
   rpcServer.stop()
   rpcServer.close()