// Copyright 2016 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 . package api import ( "crypto/ecdsa" "fmt" "os" "path/filepath" "time" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/contracts/ens" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/node" "github.com/ethereum/go-ethereum/p2p/enode" "github.com/ethereum/go-ethereum/swarm/log" "github.com/ethereum/go-ethereum/swarm/network" "github.com/ethereum/go-ethereum/swarm/pss" "github.com/ethereum/go-ethereum/swarm/services/swap" "github.com/ethereum/go-ethereum/swarm/storage" ) const ( DefaultHTTPListenAddr = "127.0.0.1" DefaultHTTPPort = "8500" ) // separate bzz directories // allow several bzz nodes running in parallel type Config struct { // serialised/persisted fields *storage.FileStoreParams *storage.LocalStoreParams *network.HiveParams Swap *swap.LocalProfile Pss *pss.PssParams //*network.SyncParams Contract common.Address EnsRoot common.Address EnsAPIs []string Path string ListenAddr string Port string PublicKey string BzzKey string NodeID string NetworkID uint64 SwapEnabled bool SyncEnabled bool SyncingSkipCheck bool DeliverySkipCheck bool LightNodeEnabled bool SyncUpdateDelay time.Duration SwapAPI string Cors string BzzAccount string privateKey *ecdsa.PrivateKey } //create a default config with all parameters to set to defaults func NewConfig() (c *Config) { c = &Config{ LocalStoreParams: storage.NewDefaultLocalStoreParams(), FileStoreParams: storage.NewFileStoreParams(), HiveParams: network.NewHiveParams(), //SyncParams: network.NewDefaultSyncParams(), Swap: swap.NewDefaultSwapParams(), Pss: pss.NewPssParams(), ListenAddr: DefaultHTTPListenAddr, Port: DefaultHTTPPort, Path: node.DefaultDataDir(), EnsAPIs: nil, EnsRoot: ens.TestNetAddress, NetworkID: network.DefaultNetworkID, SwapEnabled: false, SyncEnabled: true, SyncingSkipCheck: false, DeliverySkipCheck: true, SyncUpdateDelay: 15 * time.Second, SwapAPI: "", } return } //some config params need to be initialized after the complete //config building phase is completed (e.g. due to overriding flags) func (c *Config) Init(prvKey *ecdsa.PrivateKey) { address := crypto.PubkeyToAddress(prvKey.PublicKey) c.Path = filepath.Join(c.Path, "bzz-"+common.Bytes2Hex(address.Bytes())) err := os.MkdirAll(c.Path, os.ModePerm) if err != nil { log.Error(fmt.Sprintf("Error creating root swarm data directory: %v", err)) return } pubkey := crypto.FromECDSAPub(&prvKey.PublicKey) pubkeyhex := common.ToHex(pubkey) keyhex := crypto.Keccak256Hash(pubkey).Hex() c.PublicKey = pubkeyhex c.BzzKey = keyhex c.NodeID = enode.PubkeyToIDV4(&prvKey.PublicKey).String() if c.SwapEnabled { c.Swap.Init(c.Contract, prvKey) } c.privateKey = prvKey c.LocalStoreParams.Init(c.Path) c.LocalStoreParams.BaseKey = common.FromHex(keyhex) c.Pss = c.Pss.WithPrivateKey(c.privateKey) } func (c *Config) ShiftPrivateKey() (privKey *ecdsa.PrivateKey) { if c.privateKey != nil { privKey = c.privateKey c.privateKey = nil } return privKey }