diff options
Diffstat (limited to 'ethereum/dev_console.go')
| -rw-r--r-- | ethereum/dev_console.go | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/ethereum/dev_console.go b/ethereum/dev_console.go new file mode 100644 index 000000000..ead4b55e5 --- /dev/null +++ b/ethereum/dev_console.go @@ -0,0 +1,253 @@ +package main + +import ( + "bufio" + "bytes" + "encoding/hex" + "errors" + "fmt" + "github.com/ethereum/eth-go" + "github.com/ethereum/eth-go/ethchain" + "github.com/ethereum/eth-go/ethdb" + "github.com/ethereum/eth-go/ethutil" + "github.com/ethereum/eth-go/ethwire" + _ "math/big" + "os" + "strings" +) + +type Console struct { + db *ethdb.MemDatabase + trie *ethutil.Trie + ethereum *eth.Ethereum +} + +func NewConsole(s *eth.Ethereum) *Console { + db, _ := ethdb.NewMemDatabase() + trie := ethutil.NewTrie(db, "") + + return &Console{db: db, trie: trie, ethereum: s} +} + +func (i *Console) ValidateInput(action string, argumentLength int) error { + err := false + var expArgCount int + + switch { + case action == "update" && argumentLength != 2: + err = true + expArgCount = 2 + case action == "get" && argumentLength != 1: + err = true + expArgCount = 1 + case action == "dag" && argumentLength != 2: + err = true + expArgCount = 2 + case action == "decode" && argumentLength != 1: + err = true + expArgCount = 1 + case action == "encode" && argumentLength != 1: + err = true + expArgCount = 1 + case action == "gettx" && argumentLength != 1: + err = true + expArgCount = 1 + case action == "tx" && argumentLength != 2: + err = true + expArgCount = 2 + case action == "getaddr" && argumentLength != 1: + err = true + expArgCount = 1 + case action == "contract" && argumentLength != 1: + err = true + expArgCount = 1 + case action == "say" && argumentLength != 1: + err = true + expArgCount = 1 + case action == "addp" && argumentLength != 1: + err = true + expArgCount = 1 + case action == "block" && argumentLength != 1: + err = true + expArgCount = 1 + } + + if err { + return errors.New(fmt.Sprintf("'%s' requires %d args, got %d", action, expArgCount, argumentLength)) + } else { + return nil + } +} + +func (i *Console) Editor() []string { + var buff bytes.Buffer + for { + reader := bufio.NewReader(os.Stdin) + str, _, err := reader.ReadLine() + if len(str) > 0 { + buff.Write(str) + buff.WriteString("\n") + } + + if err != nil && err.Error() == "EOF" { + break + } + } + + scanner := bufio.NewScanner(strings.NewReader(buff.String())) + scanner.Split(bufio.ScanLines) + + var lines []string + for scanner.Scan() { + lines = append(lines, scanner.Text()) + } + + return lines +} + +func (i *Console) PrintRoot() { + root := ethutil.NewValue(i.trie.Root) + if len(root.Bytes()) != 0 { + fmt.Println(hex.EncodeToString(root.Bytes())) + } else { + fmt.Println(i.trie.Root) + } +} + +func (i *Console) ParseInput(input string) bool { + scanner := bufio.NewScanner(strings.NewReader(input)) + scanner.Split(bufio.ScanWords) + + count := 0 + var tokens []string + for scanner.Scan() { + count++ + tokens = append(tokens, scanner.Text()) + } + if err := scanner.Err(); err != nil { + fmt.Fprintln(os.Stderr, "reading input:", err) + } + + if len(tokens) == 0 { + return true + } + + err := i.ValidateInput(tokens[0], count-1) + if err != nil { + fmt.Println(err) + } else { + switch tokens[0] { + case "update": + i.trie.Update(tokens[1], tokens[2]) + + i.PrintRoot() + case "get": + fmt.Println(i.trie.Get(tokens[1])) + case "root": + i.PrintRoot() + case "rawroot": + fmt.Println(i.trie.Root) + case "print": + i.db.Print() + case "dag": + fmt.Println(ethchain.DaggerVerify(ethutil.Big(tokens[1]), // hash + ethutil.BigPow(2, 36), // diff + ethutil.Big(tokens[2]))) // nonce + case "decode": + value := ethutil.NewValueFromBytes([]byte(tokens[1])) + fmt.Println(value) + case "getaddr": + encoded, _ := hex.DecodeString(tokens[1]) + addr := i.ethereum.BlockChain().CurrentBlock.State().GetAccount(encoded) + fmt.Println("addr:", addr) + case "block": + encoded, _ := hex.DecodeString(tokens[1]) + block := i.ethereum.BlockChain().GetBlock(encoded) + info := block.BlockInfo() + fmt.Printf("++++++++++ #%d ++++++++++\n%v\n", info.Number, block) + case "say": + i.ethereum.Broadcast(ethwire.MsgTalkTy, []interface{}{tokens[1]}) + case "addp": + i.ethereum.ConnectToPeer(tokens[1]) + case "pcount": + fmt.Println("peers:", i.ethereum.Peers().Len()) + case "encode": + fmt.Printf("%q\n", ethutil.Encode(tokens[1])) + case "tx": + recipient, err := hex.DecodeString(tokens[1]) + if err != nil { + fmt.Println("recipient err:", err) + } else { + tx := ethchain.NewTransaction(recipient, ethutil.Big(tokens[2]), []string{""}) + + key := ethutil.Config.Db.GetKeys()[0] + tx.Sign(key.PrivateKey) + i.ethereum.TxPool().QueueTransaction(tx) + + fmt.Printf("%x\n", tx.Hash()) + } + case "gettx": + addr, _ := hex.DecodeString(tokens[1]) + data, _ := ethutil.Config.Db.Get(addr) + if len(data) != 0 { + decoder := ethutil.NewValueFromBytes(data) + fmt.Println(decoder) + } else { + fmt.Println("gettx: tx not found") + } + case "contract": + fmt.Println("Contract editor (Ctrl-D = done)") + code := ethchain.Compile(i.Editor()) + + contract := ethchain.NewTransaction(ethchain.ContractAddr, ethutil.Big(tokens[1]), code) + + key := ethutil.Config.Db.GetKeys()[0] + contract.Sign(key.PrivateKey) + + i.ethereum.TxPool().QueueTransaction(contract) + + fmt.Printf("%x\n", contract.Hash()[12:]) + case "exit", "quit", "q": + return false + case "help": + fmt.Printf("COMMANDS:\n" + + "\033[1m= DB =\033[0m\n" + + "update KEY VALUE - Updates/Creates a new value for the given key\n" + + "get KEY - Retrieves the given key\n" + + "root - Prints the hex encoded merkle root\n" + + "rawroot - Prints the raw merkle root\n" + + "block HASH - Prints the block\n" + + "getaddr ADDR - Prints the account associated with the address\n" + + "\033[1m= Dagger =\033[0m\n" + + "dag HASH NONCE - Verifies a nonce with the given hash with dagger\n" + + "\033[1m= Encoding =\033[0m\n" + + "decode STR\n" + + "encode STR\n" + + "\033[1m= Other =\033[0m\n" + + "addp HOST:PORT\n" + + "tx TO AMOUNT\n" + + "contract AMOUNT\n") + + default: + fmt.Println("Unknown command:", tokens[0]) + } + } + + return true +} + +func (i *Console) Start() { + fmt.Printf("Eth Console. Type (help) for help\n") + reader := bufio.NewReader(os.Stdin) + for { + fmt.Printf("eth >>> ") + str, _, err := reader.ReadLine() + if err != nil { + fmt.Println("Error reading input", err) + } else { + if !i.ParseInput(string(str)) { + return + } + } + } +} |