142 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			142 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package api
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import (
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	"crypto/ecdsa"
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	"fmt"
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	"os"
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	"path/filepath"
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	"time"
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	"github.com/ethereum/go-ethereum/common"
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	"github.com/ethereum/go-ethereum/contracts/ens"
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	"github.com/ethereum/go-ethereum/crypto"
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	"github.com/ethereum/go-ethereum/node"
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	"github.com/ethereum/go-ethereum/p2p/enode"
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	"github.com/ethereum/go-ethereum/swarm/log"
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	"github.com/ethereum/go-ethereum/swarm/network"
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	"github.com/ethereum/go-ethereum/swarm/pss"
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	"github.com/ethereum/go-ethereum/swarm/services/swap"
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	"github.com/ethereum/go-ethereum/swarm/storage"
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)
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const (
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	DefaultHTTPListenAddr = "127.0.0.1"
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	DefaultHTTPPort       = "8500"
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)
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// separate bzz directories
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// allow several bzz nodes running in parallel
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type Config struct {
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	// serialised/persisted fields
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	*storage.FileStoreParams
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	*storage.LocalStoreParams
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	*network.HiveParams
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	Swap *swap.LocalProfile
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	Pss  *pss.PssParams
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	//*network.SyncParams
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	Contract             common.Address
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	EnsRoot              common.Address
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	EnsAPIs              []string
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	Path                 string
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	ListenAddr           string
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	Port                 string
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	PublicKey            string
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	BzzKey               string
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	NodeID               string
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	NetworkID            uint64
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	SwapEnabled          bool
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	SyncEnabled          bool
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	SyncingSkipCheck     bool
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	DeliverySkipCheck    bool
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	MaxStreamPeerServers int
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	LightNodeEnabled     bool
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	SyncUpdateDelay      time.Duration
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	SwapAPI              string
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	Cors                 string
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	BzzAccount           string
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	privateKey           *ecdsa.PrivateKey
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}
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//create a default config with all parameters to set to defaults
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func NewConfig() (c *Config) {
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	c = &Config{
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		LocalStoreParams: storage.NewDefaultLocalStoreParams(),
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		FileStoreParams:  storage.NewFileStoreParams(),
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		HiveParams:       network.NewHiveParams(),
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		//SyncParams:    network.NewDefaultSyncParams(),
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		Swap:                 swap.NewDefaultSwapParams(),
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		Pss:                  pss.NewPssParams(),
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		ListenAddr:           DefaultHTTPListenAddr,
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		Port:                 DefaultHTTPPort,
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		Path:                 node.DefaultDataDir(),
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		EnsAPIs:              nil,
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		EnsRoot:              ens.TestNetAddress,
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		NetworkID:            network.DefaultNetworkID,
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		SwapEnabled:          false,
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		SyncEnabled:          true,
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		SyncingSkipCheck:     false,
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		MaxStreamPeerServers: 10000,
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		DeliverySkipCheck:    true,
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		SyncUpdateDelay:      15 * time.Second,
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		SwapAPI:              "",
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	}
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	return
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}
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//some config params need to be initialized after the complete
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//config building phase is completed (e.g. due to overriding flags)
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func (c *Config) Init(prvKey *ecdsa.PrivateKey) {
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	address := crypto.PubkeyToAddress(prvKey.PublicKey)
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	c.Path = filepath.Join(c.Path, "bzz-"+common.Bytes2Hex(address.Bytes()))
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	err := os.MkdirAll(c.Path, os.ModePerm)
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	if err != nil {
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		log.Error(fmt.Sprintf("Error creating root swarm data directory: %v", err))
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		return
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	}
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	pubkey := crypto.FromECDSAPub(&prvKey.PublicKey)
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	pubkeyhex := common.ToHex(pubkey)
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	keyhex := crypto.Keccak256Hash(pubkey).Hex()
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	c.PublicKey = pubkeyhex
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	c.BzzKey = keyhex
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	c.NodeID = enode.PubkeyToIDV4(&prvKey.PublicKey).String()
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	if c.SwapEnabled {
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		c.Swap.Init(c.Contract, prvKey)
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	}
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	c.privateKey = prvKey
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	c.LocalStoreParams.Init(c.Path)
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	c.LocalStoreParams.BaseKey = common.FromHex(keyhex)
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	c.Pss = c.Pss.WithPrivateKey(c.privateKey)
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}
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func (c *Config) ShiftPrivateKey() (privKey *ecdsa.PrivateKey) {
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	if c.privateKey != nil {
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		privKey = c.privateKey
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		c.privateKey = nil
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	}
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	return privKey
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}
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