257 lines
8.9 KiB
Nim
257 lines
8.9 KiB
Nim
import
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db/[db_chain, state_db, capturedb], eth/common, utils, json,
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constants, vm_state, vm_types, transaction, p2p/executor,
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eth/trie/db, nimcrypto, strutils, stew/ranges,
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chronicles, rpc/hexstrings, launcher,
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vm/interpreter/vm_forks
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proc getParentHeader(self: BaseChainDB, header: BlockHeader): BlockHeader =
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self.getBlockHeader(header.parentHash)
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proc `%`(x: openArray[byte]): JsonNode =
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result = %toHex(x, false)
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proc toJson(receipt: Receipt): JsonNode =
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result = newJObject()
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result["cumulativeGasUsed"] = %receipt.cumulativeGasUsed
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result["bloom"] = %receipt.bloom
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result["logs"] = %receipt.logs
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if receipt.hasStateRoot:
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result["root"] = %($receipt.stateRoot)
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else:
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result["status"] = %receipt.status
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proc dumpReceipts*(chainDB: BaseChainDB, header: BlockHeader): JsonNode =
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result = newJArray()
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for receipt in chainDB.getReceipts(header):
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result.add receipt.toJson
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proc toJson*(receipts: seq[Receipt]): JsonNode =
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result = newJArray()
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for receipt in receipts:
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result.add receipt.toJson
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proc captureAccount(n: JsonNode, db: AccountStateDB, address: EthAddress, name: string) =
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var jaccount = newJObject()
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jaccount["name"] = %name
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jaccount["address"] = %("0x" & $address)
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let account = db.getAccount(address)
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jaccount["nonce"] = %(encodeQuantity(account.nonce).toLowerAscii)
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jaccount["balance"] = %("0x" & account.balance.toHex)
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let code = db.getCode(address)
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jaccount["codeHash"] = %("0x" & ($account.codeHash).toLowerAscii)
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jaccount["code"] = %("0x" & toHex(code.toOpenArray, true))
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jaccount["storageRoot"] = %("0x" & ($account.storageRoot).toLowerAscii)
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var storage = newJObject()
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for key, value in db.storage(address):
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storage["0x" & key.dumpHex] = %("0x" & value.dumpHex)
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jaccount["storage"] = storage
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n.add jaccount
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proc dumpMemoryDB*(node: JsonNode, memoryDB: TrieDatabaseRef) =
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var n = newJObject()
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for k, v in pairsInMemoryDB(memoryDB):
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n[k.toHex(false)] = %v
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node["state"] = n
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const
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senderName = "sender"
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recipientName = "recipient"
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minerName = "miner"
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uncleName = "uncle"
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internalTxName = "internalTx"
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proc traceTransaction*(db: BaseChainDB, header: BlockHeader,
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body: BlockBody, txIndex: int, tracerFlags: set[TracerFlags] = {}): JsonNode =
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let
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parent = db.getParentHeader(header)
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# we add a memory layer between backend/lower layer db
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# and capture state db snapshot during transaction execution
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memoryDB = newMemoryDB()
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captureDB = newCaptureDB(db.db, memoryDB)
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captureTrieDB = trieDB captureDB
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captureChainDB = newBaseChainDB(captureTrieDB, false) # prune or not prune?
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vmState = newBaseVMState(parent.stateRoot, header, captureChainDB, tracerFlags + {EnableAccount})
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var stateDb = vmState.accountDb
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if header.txRoot == BLANK_ROOT_HASH: return newJNull()
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doAssert(body.transactions.calcTxRoot == header.txRoot)
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doAssert(body.transactions.len != 0)
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var
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gasUsed: GasInt
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before = newJArray()
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after = newJArray()
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stateDiff = %{"before": before, "after": after}
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beforeRoot: Hash256
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let fork = header.blockNumber.toFork
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for idx, tx in body.transactions:
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let sender = tx.getSender
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let recipient = tx.getRecipient
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if idx == txIndex:
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vmState.enableTracing()
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before.captureAccount(stateDb, sender, senderName)
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before.captureAccount(stateDb, recipient, recipientName)
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before.captureAccount(stateDb, header.coinbase, minerName)
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stateDiff["beforeRoot"] = %($stateDb.rootHash)
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beforeRoot = stateDb.rootHash
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gasUsed = processTransaction(tx, sender, vmState, fork)
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if idx == txIndex:
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after.captureAccount(stateDb, sender, senderName)
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after.captureAccount(stateDb, recipient, recipientName)
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after.captureAccount(stateDb, header.coinbase, minerName)
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vmState.removeTracedAccounts(sender, recipient, header.coinbase)
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stateDiff["afterRoot"] = %($stateDb.rootHash)
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break
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# internal transactions:
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var stateBefore = newAccountStateDB(captureTrieDB, beforeRoot, db.pruneTrie)
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for idx, acc in tracedAccountsPairs(vmState):
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before.captureAccount(stateBefore, acc, internalTxName & $idx)
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for idx, acc in tracedAccountsPairs(vmState):
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after.captureAccount(stateDb, acc, internalTxName & $idx)
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result = vmState.getTracingResult()
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result["gas"] = %gasUsed
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if TracerFlags.DisableStateDiff notin tracerFlags:
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result["stateDiff"] = stateDiff
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# now we dump captured state db
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if TracerFlags.DisableState notin tracerFlags:
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result.dumpMemoryDB(memoryDB)
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proc dumpBlockState*(db: BaseChainDB, header: BlockHeader, body: BlockBody, dumpState = false): JsonNode =
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let
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parent = db.getParentHeader(header)
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memoryDB = newMemoryDB()
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captureDB = newCaptureDB(db.db, memoryDB)
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captureTrieDB = trieDB captureDB
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captureChainDB = newBaseChainDB(captureTrieDB, false)
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# we only need stack dump if we want to scan for internal transaction address
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vmState = newBaseVMState(parent.stateRoot, header, captureChainDB, {EnableTracing, DisableMemory, DisableStorage, EnableAccount})
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var
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before = newJArray()
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after = newJArray()
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stateBefore = newAccountStateDB(captureTrieDB, parent.stateRoot, db.pruneTrie)
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for idx, tx in body.transactions:
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let sender = tx.getSender
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let recipient = tx.getRecipient
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before.captureAccount(stateBefore, sender, senderName & $idx)
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before.captureAccount(stateBefore, recipient, recipientName & $idx)
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before.captureAccount(stateBefore, header.coinbase, minerName)
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for idx, uncle in body.uncles:
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before.captureAccount(stateBefore, uncle.coinbase, uncleName & $idx)
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discard captureChainDB.processBlock(header, body, vmState)
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var stateAfter = vmState.accountDb
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for idx, tx in body.transactions:
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let sender = tx.getSender
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let recipient = tx.getRecipient
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after.captureAccount(stateAfter, sender, senderName & $idx)
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after.captureAccount(stateAfter, recipient, recipientName & $idx)
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vmState.removeTracedAccounts(sender, recipient)
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after.captureAccount(stateAfter, header.coinbase, minerName)
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vmState.removeTracedAccounts(header.coinbase)
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for idx, uncle in body.uncles:
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after.captureAccount(stateAfter, uncle.coinbase, uncleName & $idx)
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vmState.removeTracedAccounts(uncle.coinbase)
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# internal transactions:
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for idx, acc in tracedAccountsPairs(vmState):
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before.captureAccount(stateBefore, acc, internalTxName & $idx)
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for idx, acc in tracedAccountsPairs(vmState):
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after.captureAccount(stateAfter, acc, internalTxName & $idx)
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result = %{"before": before, "after": after}
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if dumpState:
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result.dumpMemoryDB(memoryDB)
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proc traceBlock*(db: BaseChainDB, header: BlockHeader, body: BlockBody, tracerFlags: set[TracerFlags] = {}): JsonNode =
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let
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parent = db.getParentHeader(header)
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memoryDB = newMemoryDB()
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captureDB = newCaptureDB(db.db, memoryDB)
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captureTrieDB = trieDB captureDB
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captureChainDB = newBaseChainDB(captureTrieDB, false)
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vmState = newBaseVMState(parent.stateRoot, header, captureChainDB, tracerFlags + {EnableTracing})
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if header.txRoot == BLANK_ROOT_HASH: return newJNull()
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doAssert(body.transactions.calcTxRoot == header.txRoot)
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doAssert(body.transactions.len != 0)
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var gasUsed = GasInt(0)
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let fork = header.blockNumber.toFork
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for tx in body.transactions:
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let sender = tx.getSender
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gasUsed = gasUsed + processTransaction(tx, sender, vmState, fork)
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result = vmState.getTracingResult()
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result["gas"] = %gasUsed
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if TracerFlags.DisableState notin tracerFlags:
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result.dumpMemoryDB(memoryDB)
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proc traceTransactions*(chainDB: BaseChainDB, header: BlockHeader, blockBody: BlockBody): JsonNode =
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result = newJArray()
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for i in 0 ..< blockBody.transactions.len:
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result.add traceTransaction(chainDB, header, blockBody, i, {DisableState})
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proc dumpDebuggingMetaData*(chainDB: BaseChainDB, header: BlockHeader,
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blockBody: BlockBody, vmState: BaseVMState, launchDebugger = true) =
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let
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blockNumber = header.blockNumber
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var
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memoryDB = newMemoryDB()
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captureDB = newCaptureDB(chainDB.db, memoryDB)
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captureTrieDB = trieDB captureDB
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captureChainDB = newBaseChainDB(captureTrieDB, false)
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bloom = createBloom(vmState.receipts)
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let blockSummary = %{
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"receiptsRoot": %("0x" & toHex(calcReceiptRoot(vmState.receipts).data)),
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"stateRoot": %("0x" & toHex(vmState.accountDb.rootHash.data)),
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"logsBloom": %("0x" & toHex(bloom))
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}
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var metaData = %{
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"blockNumber": %blockNumber.toHex,
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"txTraces": traceTransactions(captureChainDB, header, blockBody),
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"stateDump": dumpBlockState(captureChainDB, header, blockBody),
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"blockTrace": traceBlock(captureChainDB, header, blockBody, {DisableState}),
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"receipts": toJson(vmState.receipts),
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"block": blockSummary
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}
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metaData.dumpMemoryDB(memoryDB)
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let jsonFileName = "debug" & $blockNumber & ".json"
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if launchDebugger:
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launchPremix(jsonFileName, metaData)
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else:
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writeFile(jsonFileName, metaData.pretty())
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