github.com/klaytn/klaytn@v1.12.1/accounts/keystore/keystore_plain.go (about)

     1  // Modifications Copyright 2018 The klaytn Authors
     2  // Copyright 2015 The go-ethereum Authors
     3  // This file is part of the go-ethereum library.
     4  //
     5  // The go-ethereum library is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU Lesser General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // The go-ethereum library is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  // GNU Lesser General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU Lesser General Public License
    16  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    17  //
    18  // This file is derived from accounts/keystore/keystore_plain.go (2018/06/04).
    19  // Modified and improved for the klaytn development.
    20  
    21  package keystore
    22  
    23  import (
    24  	"encoding/json"
    25  	"fmt"
    26  	"os"
    27  	"path/filepath"
    28  
    29  	"github.com/klaytn/klaytn/common"
    30  )
    31  
    32  type keyStorePlain struct {
    33  	keysDirPath string
    34  }
    35  
    36  func (ks keyStorePlain) GetKey(addr common.Address, filename, auth string) (Key, error) {
    37  	fd, err := os.Open(filename)
    38  	if err != nil {
    39  		return nil, err
    40  	}
    41  	defer fd.Close()
    42  	var key Key
    43  	keyv4 := new(KeyV4)
    44  	if err := json.NewDecoder(fd).Decode(keyv4); err != nil {
    45  		keyv3 := new(KeyV3)
    46  		if err := json.NewDecoder(fd).Decode(keyv3); err != nil {
    47  			return nil, err
    48  		}
    49  		key = keyv3
    50  	} else {
    51  		key = keyv4
    52  	}
    53  	if key.GetAddress() != addr {
    54  		return nil, fmt.Errorf("key content mismatch: have address %x, want %x", key.GetAddress(), addr)
    55  	}
    56  	return key, nil
    57  }
    58  
    59  func (ks keyStorePlain) StoreKey(filename string, key Key, auth string) error {
    60  	content, err := json.Marshal(key)
    61  	if err != nil {
    62  		return err
    63  	}
    64  	return writeKeyFile(filename, content)
    65  }
    66  
    67  func (ks keyStorePlain) JoinPath(filename string) string {
    68  	if filepath.IsAbs(filename) {
    69  		return filename
    70  	}
    71  	return filepath.Join(ks.keysDirPath, filename)
    72  }