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Diffstat (limited to 'common/registrar/ethreg/api.go')
| -rw-r--r-- | common/registrar/ethreg/api.go | 279 |
1 files changed, 0 insertions, 279 deletions
diff --git a/common/registrar/ethreg/api.go b/common/registrar/ethreg/api.go deleted file mode 100644 index a32653554..000000000 --- a/common/registrar/ethreg/api.go +++ /dev/null @@ -1,279 +0,0 @@ -// Copyright 2015 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. - -package ethreg - -import ( - "errors" - "math/big" - - "github.com/ethereum/go-ethereum/accounts" - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/common/compiler" - "github.com/ethereum/go-ethereum/common/registrar" - "github.com/ethereum/go-ethereum/core" - "github.com/ethereum/go-ethereum/core/state" - "github.com/ethereum/go-ethereum/core/types" - "github.com/ethereum/go-ethereum/core/vm" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/ethdb" - "github.com/ethereum/go-ethereum/logger" - "github.com/ethereum/go-ethereum/logger/glog" - "github.com/ethereum/go-ethereum/params" -) - -// registryAPIBackend is a backend for an Ethereum Registry. -type registryAPIBackend struct { - config *params.ChainConfig - bc *core.BlockChain - chainDb ethdb.Database - txPool *core.TxPool - am *accounts.Manager -} - -// PrivateRegistarAPI offers various functions to access the Ethereum registry. -type PrivateRegistarAPI struct { - config *params.ChainConfig - be *registryAPIBackend -} - -// NewPrivateRegistarAPI creates a new PrivateRegistarAPI instance. -func NewPrivateRegistarAPI(config *params.ChainConfig, bc *core.BlockChain, chainDb ethdb.Database, txPool *core.TxPool, am *accounts.Manager) *PrivateRegistarAPI { - return &PrivateRegistarAPI{ - config: config, - be: ®istryAPIBackend{ - config: config, - bc: bc, - chainDb: chainDb, - txPool: txPool, - am: am, - }, - } -} - -// SetGlobalRegistrar allows clients to set the global registry for the node. -// This method can be used to deploy a new registry. First zero out the current -// address by calling the method with namereg = '0x0' and then call this method -// again with '' as namereg. This will submit a transaction to the network which -// will deploy a new registry on execution. The TX hash is returned. When called -// with namereg '' and the current address is not zero the current global is -// address is returned.. -func (api *PrivateRegistarAPI) SetGlobalRegistrar(namereg string, from common.Address) (string, error) { - return registrar.New(api.be).SetGlobalRegistrar(namereg, from) -} - -// SetHashReg queries the registry for a hash. -func (api *PrivateRegistarAPI) SetHashReg(hashreg string, from common.Address) (string, error) { - return registrar.New(api.be).SetHashReg(hashreg, from) -} - -// SetUrlHint queries the registry for an url. -func (api *PrivateRegistarAPI) SetUrlHint(hashreg string, from common.Address) (string, error) { - return registrar.New(api.be).SetUrlHint(hashreg, from) -} - -// SaveInfo stores contract information on the local file system. -func (api *PrivateRegistarAPI) SaveInfo(info *compiler.ContractInfo, filename string) (contenthash common.Hash, err error) { - return compiler.SaveInfo(info, filename) -} - -// Register registers a new content hash in the registry. -func (api *PrivateRegistarAPI) Register(sender common.Address, addr common.Address, contentHashHex string) (bool, error) { - block := api.be.bc.CurrentBlock() - state, err := state.New(block.Root(), api.be.chainDb) - if err != nil { - return false, err - } - - codeb := state.GetCode(addr) - codeHash := common.BytesToHash(crypto.Keccak256(codeb)) - contentHash := common.HexToHash(contentHashHex) - - _, err = registrar.New(api.be).SetHashToHash(sender, codeHash, contentHash) - return err == nil, err -} - -// RegisterUrl registers a new url in the registry. -func (api *PrivateRegistarAPI) RegisterUrl(sender common.Address, contentHashHex string, url string) (bool, error) { - _, err := registrar.New(api.be).SetUrlToHash(sender, common.HexToHash(contentHashHex), url) - return err == nil, err -} - -// callmsg is the message type used for call transations. -type callmsg struct { - from *state.StateObject - to *common.Address - gas, gasPrice *big.Int - value *big.Int - data []byte -} - -// accessor boilerplate to implement core.Message -func (m callmsg) From() (common.Address, error) { - return m.from.Address(), nil -} -func (m callmsg) FromFrontier() (common.Address, error) { - return m.from.Address(), nil -} -func (m callmsg) Nonce() uint64 { - return 0 -} -func (m callmsg) CheckNonce() bool { - return false -} -func (m callmsg) To() *common.Address { - return m.to -} -func (m callmsg) GasPrice() *big.Int { - return m.gasPrice -} -func (m callmsg) Gas() *big.Int { - return m.gas -} -func (m callmsg) Value() *big.Int { - return m.value -} -func (m callmsg) Data() []byte { - return m.data -} - -// Call forms a transaction from the given arguments and tries to execute it on -// a private VM with a copy of the state. Any changes are therefore only temporary -// and not part of the actual state. This allows for local execution/queries. -func (be *registryAPIBackend) Call(fromStr, toStr, valueStr, gasStr, gasPriceStr, dataStr string) (string, string, error) { - block := be.bc.CurrentBlock() - statedb, err := state.New(block.Root(), be.chainDb) - if err != nil { - return "", "", err - } - - var from *state.StateObject - if len(fromStr) == 0 { - accounts := be.am.Accounts() - if len(accounts) == 0 { - from = statedb.GetOrNewStateObject(common.Address{}) - } else { - from = statedb.GetOrNewStateObject(accounts[0].Address) - } - } else { - from = statedb.GetOrNewStateObject(common.HexToAddress(fromStr)) - } - - from.SetBalance(common.MaxBig) - - var to *common.Address - if len(toStr) > 0 { - addr := common.HexToAddress(toStr) - to = &addr - } - gas := common.Big(gasStr) - if gas.BitLen() == 0 { - gas = big.NewInt(50000000) - } - gasPrice := common.Big(gasPriceStr) - if gasPrice.BitLen() == 0 { - gasPrice = new(big.Int).Mul(big.NewInt(50), common.Shannon) - } - msg := types.NewMessage(from.Address(), to, 0, common.Big(valueStr), gas, gasPrice, common.FromHex(dataStr), false) - - header := be.bc.CurrentBlock().Header() - vmenv := core.NewEnv(statedb, be.config, be.bc, msg, header, vm.Config{}) - gp := new(core.GasPool).AddGas(common.MaxBig) - res, gas, err := core.ApplyMessage(vmenv, msg, gp) - - return common.ToHex(res), gas.String(), err -} - -// StorageAt returns the data stores in the state for the given address and location. -func (be *registryAPIBackend) StorageAt(addr string, storageAddr string) string { - block := be.bc.CurrentBlock() - state, err := state.New(block.Root(), be.chainDb) - if err != nil { - return "" - } - return state.GetState(common.HexToAddress(addr), common.HexToHash(storageAddr)).Hex() -} - -// Transact forms a transaction from the given arguments and submits it to the -// transactio pool for execution. -func (be *registryAPIBackend) Transact(fromStr, toStr, nonceStr, valueStr, gasStr, gasPriceStr, codeStr string) (string, error) { - if len(toStr) > 0 && toStr != "0x" && !common.IsHexAddress(toStr) { - return "", errors.New("invalid address") - } - - var ( - from = common.HexToAddress(fromStr) - to = common.HexToAddress(toStr) - value = common.Big(valueStr) - gas *big.Int - price *big.Int - data []byte - contractCreation bool - ) - - if len(gasStr) == 0 { - gas = big.NewInt(90000) - } else { - gas = common.Big(gasStr) - } - - if len(gasPriceStr) == 0 { - price = big.NewInt(10000000000000) - } else { - price = common.Big(gasPriceStr) - } - - data = common.FromHex(codeStr) - if len(toStr) == 0 { - contractCreation = true - } - - nonce := be.txPool.State().GetNonce(from) - if len(nonceStr) != 0 { - nonce = common.Big(nonceStr).Uint64() - } - - var tx *types.Transaction - if contractCreation { - tx = types.NewContractCreation(nonce, value, gas, price, data) - } else { - tx = types.NewTransaction(nonce, to, value, gas, price, data) - } - - sigHash := (types.HomesteadSigner{}).Hash(tx) - signature, err := be.am.SignEthereum(from, sigHash.Bytes()) - if err != nil { - return "", err - } - signedTx, err := tx.WithSignature(types.HomesteadSigner{}, signature) - if err != nil { - return "", err - } - - be.txPool.SetLocal(signedTx) - if err := be.txPool.Add(signedTx); err != nil { - return "", nil - } - - if contractCreation { - addr := crypto.CreateAddress(from, nonce) - glog.V(logger.Info).Infof("Tx(%s) created: %s\n", signedTx.Hash().Hex(), addr.Hex()) - } else { - glog.V(logger.Info).Infof("Tx(%s) to: %s\n", signedTx.Hash().Hex(), tx.To().Hex()) - } - - return signedTx.Hash().Hex(), nil -} |