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author | ΞTHΞЯSPHΞЯΞ <{viktor.tron,nagydani,zsfelfoldi}@gmail.com> | 2016-08-30 03:18:00 +0800 |
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committer | Felix Lange <fjl@twurst.com> | 2016-08-31 22:19:40 +0800 |
commit | 4d300e4dece56535f56ccc32330340ce89e42581 (patch) | |
tree | 135838bfae03437eb2a50c6d66de4d66b20c3220 /swarm/api/config.go | |
parent | 1f58b2d084b65eaec9aa2c2ecb1d3aae50d894b3 (diff) | |
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swarm: plan bee for content storage and distribution on web3
This change imports the Swarm protocol codebase. Compared to the 'swarm'
branch, a few mostly cosmetic changes had to be made:
* The various redundant log message prefixes are gone.
* All files now have LGPLv3 license headers.
* Minor code changes were needed to please go vet and make the tests
pass on Windows.
* Further changes were required to adapt to the go-ethereum develop
branch and its new Go APIs.
Some code has not (yet) been brought over:
* swarm/cmd/bzzhash: will reappear as cmd/bzzhash later
* swarm/cmd/bzzup.sh: will be reimplemented in cmd/bzzup
* swarm/cmd/makegenesis: will reappear somehow
* swarm/examples/album: will move to a separate repository
* swarm/examples/filemanager: ditto
* swarm/examples/files: will not be merged
* swarm/test/*: will not be merged
* swarm/services/swear: will reappear as contracts/swear when needed
Diffstat (limited to 'swarm/api/config.go')
-rw-r--r-- | swarm/api/config.go | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/swarm/api/config.go b/swarm/api/config.go new file mode 100644 index 000000000..730755c43 --- /dev/null +++ b/swarm/api/config.go @@ -0,0 +1,132 @@ +// 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 <http://www.gnu.org/licenses/>. + +package api + +import ( + "crypto/ecdsa" + "encoding/json" + "fmt" + "io/ioutil" + "os" + "path/filepath" + + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/crypto" + "github.com/ethereum/go-ethereum/swarm/network" + "github.com/ethereum/go-ethereum/swarm/services/swap" + "github.com/ethereum/go-ethereum/swarm/storage" +) + +const ( + port = "8500" +) + +// by default ens root is north internal +var ( + toyNetEnsRoot = common.HexToAddress("0xd344889e0be3e9ef6c26b0f60ef66a32e83c1b69") +) + +// separate bzz directories +// allow several bzz nodes running in parallel +type Config struct { + // serialised/persisted fields + *storage.StoreParams + *storage.ChunkerParams + *network.HiveParams + Swap *swap.SwapParams + *network.SyncParams + Path string + Port string + PublicKey string + BzzKey string + EnsRoot common.Address +} + +// config is agnostic to where private key is coming from +// so managing accounts is outside swarm and left to wrappers +func NewConfig(path string, contract common.Address, prvKey *ecdsa.PrivateKey) (self *Config, err error) { + + address := crypto.PubkeyToAddress(prvKey.PublicKey) // default beneficiary address + dirpath := filepath.Join(path, common.Bytes2Hex(address.Bytes())) + err = os.MkdirAll(dirpath, os.ModePerm) + if err != nil { + return + } + confpath := filepath.Join(dirpath, "config.json") + var data []byte + pubkey := crypto.FromECDSAPub(&prvKey.PublicKey) + pubkeyhex := common.ToHex(pubkey) + keyhex := crypto.Sha3Hash(pubkey).Hex() + + self = &Config{ + SyncParams: network.NewSyncParams(dirpath), + HiveParams: network.NewHiveParams(dirpath), + ChunkerParams: storage.NewChunkerParams(), + StoreParams: storage.NewStoreParams(dirpath), + Port: port, + Path: dirpath, + Swap: swap.DefaultSwapParams(contract, prvKey), + PublicKey: pubkeyhex, + BzzKey: keyhex, + EnsRoot: toyNetEnsRoot, + } + data, err = ioutil.ReadFile(confpath) + if err != nil { + if !os.IsNotExist(err) { + return + } + // file does not exist + // write out config file + err = self.Save() + if err != nil { + err = fmt.Errorf("error writing config: %v", err) + } + return + } + // file exists, deserialise + err = json.Unmarshal(data, self) + if err != nil { + return nil, fmt.Errorf("unable to parse config: %v", err) + } + // check public key + if pubkeyhex != self.PublicKey { + return nil, fmt.Errorf("public key does not match the one in the config file %v != %v", pubkeyhex, self.PublicKey) + } + if keyhex != self.BzzKey { + return nil, fmt.Errorf("bzz key does not match the one in the config file %v != %v", keyhex, self.BzzKey) + } + self.Swap.SetKey(prvKey) + + if (self.EnsRoot == common.Address{}) { + self.EnsRoot = toyNetEnsRoot + } + + return +} + +func (self *Config) Save() error { + data, err := json.MarshalIndent(self, "", " ") + if err != nil { + return err + } + err = os.MkdirAll(self.Path, os.ModePerm) + if err != nil { + return err + } + confpath := filepath.Join(self.Path, "config.json") + return ioutil.WriteFile(confpath, data, os.ModePerm) +} |