github.com/oskarth/go-ethereum@v1.6.8-0.20191013093314-dac24a9d3494/swarm/api/config.go (about) 1 // Copyright 2016 The go-ethereum Authors 2 // This file is part of the go-ethereum library. 3 // 4 // The go-ethereum library is free software: you can redistribute it and/or modify 5 // it under the terms of the GNU Lesser General Public License as published by 6 // the Free Software Foundation, either version 3 of the License, or 7 // (at your option) any later version. 8 // 9 // The go-ethereum library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU Lesser General Public License for more details. 13 // 14 // You should have received a copy of the GNU Lesser General Public License 15 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. 16 17 package api 18 19 import ( 20 "crypto/ecdsa" 21 "fmt" 22 "os" 23 "path/filepath" 24 "time" 25 26 "github.com/ethereum/go-ethereum/common" 27 "github.com/ethereum/go-ethereum/contracts/ens" 28 "github.com/ethereum/go-ethereum/crypto" 29 "github.com/ethereum/go-ethereum/node" 30 "github.com/ethereum/go-ethereum/p2p/enode" 31 "github.com/ethereum/go-ethereum/swarm/log" 32 "github.com/ethereum/go-ethereum/swarm/network" 33 "github.com/ethereum/go-ethereum/swarm/pss" 34 "github.com/ethereum/go-ethereum/swarm/services/swap" 35 "github.com/ethereum/go-ethereum/swarm/storage" 36 ) 37 38 const ( 39 DefaultHTTPListenAddr = "127.0.0.1" 40 DefaultHTTPPort = "8500" 41 ) 42 43 // separate bzz directories 44 // allow several bzz nodes running in parallel 45 type Config struct { 46 // serialised/persisted fields 47 *storage.FileStoreParams 48 *storage.LocalStoreParams 49 *network.HiveParams 50 Swap *swap.LocalProfile 51 Pss *pss.PssParams 52 //*network.SyncParams 53 Contract common.Address 54 EnsRoot common.Address 55 EnsAPIs []string 56 Path string 57 ListenAddr string 58 Port string 59 PublicKey string 60 BzzKey string 61 NodeID string 62 NetworkID uint64 63 SwapEnabled bool 64 SyncEnabled bool 65 SyncingSkipCheck bool 66 DeliverySkipCheck bool 67 MaxStreamPeerServers int 68 LightNodeEnabled bool 69 SyncUpdateDelay time.Duration 70 SwapAPI string 71 Cors string 72 BzzAccount string 73 privateKey *ecdsa.PrivateKey 74 } 75 76 //create a default config with all parameters to set to defaults 77 func NewConfig() (c *Config) { 78 79 c = &Config{ 80 LocalStoreParams: storage.NewDefaultLocalStoreParams(), 81 FileStoreParams: storage.NewFileStoreParams(), 82 HiveParams: network.NewHiveParams(), 83 //SyncParams: network.NewDefaultSyncParams(), 84 Swap: swap.NewDefaultSwapParams(), 85 Pss: pss.NewPssParams(), 86 ListenAddr: DefaultHTTPListenAddr, 87 Port: DefaultHTTPPort, 88 Path: node.DefaultDataDir(), 89 EnsAPIs: nil, 90 EnsRoot: ens.TestNetAddress, 91 NetworkID: network.DefaultNetworkID, 92 SwapEnabled: false, 93 SyncEnabled: true, 94 SyncingSkipCheck: false, 95 MaxStreamPeerServers: 10000, 96 DeliverySkipCheck: true, 97 SyncUpdateDelay: 15 * time.Second, 98 SwapAPI: "", 99 } 100 101 return 102 } 103 104 //some config params need to be initialized after the complete 105 //config building phase is completed (e.g. due to overriding flags) 106 func (c *Config) Init(prvKey *ecdsa.PrivateKey) { 107 108 address := crypto.PubkeyToAddress(prvKey.PublicKey) 109 c.Path = filepath.Join(c.Path, "bzz-"+common.Bytes2Hex(address.Bytes())) 110 err := os.MkdirAll(c.Path, os.ModePerm) 111 if err != nil { 112 log.Error(fmt.Sprintf("Error creating root swarm data directory: %v", err)) 113 return 114 } 115 116 pubkey := crypto.FromECDSAPub(&prvKey.PublicKey) 117 pubkeyhex := common.ToHex(pubkey) 118 keyhex := crypto.Keccak256Hash(pubkey).Hex() 119 120 c.PublicKey = pubkeyhex 121 c.BzzKey = keyhex 122 c.NodeID = enode.PubkeyToIDV4(&prvKey.PublicKey).String() 123 124 if c.SwapEnabled { 125 c.Swap.Init(c.Contract, prvKey) 126 } 127 128 c.privateKey = prvKey 129 c.LocalStoreParams.Init(c.Path) 130 c.LocalStoreParams.BaseKey = common.FromHex(keyhex) 131 132 c.Pss = c.Pss.WithPrivateKey(c.privateKey) 133 } 134 135 func (c *Config) ShiftPrivateKey() (privKey *ecdsa.PrivateKey) { 136 if c.privateKey != nil { 137 privKey = c.privateKey 138 c.privateKey = nil 139 } 140 return privKey 141 }