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config.go
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config.go
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//
// Copyright 2019 Insolar Technologies GmbH
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package requester
import (
"crypto"
"encoding/json"
"io/ioutil"
"os"
"path/filepath"
"github.com/insolar/insolar/platformpolicy"
"github.com/pkg/errors"
)
// UserConfigJSON holds info about user
type UserConfigJSON struct {
PrivateKey string `json:"private_key"`
PublicKey string `json:"public_key"`
Caller string `json:"caller"`
privateKeyObject crypto.PrivateKey
}
func readFile(path string, configType interface{}) error {
var rawConf []byte
var err error
if path == "-" {
rawConf, err = ioutil.ReadAll(os.Stdin)
} else {
rawConf, err = ioutil.ReadFile(filepath.Clean(path))
}
if err != nil {
return errors.Wrap(err, "[ readFile ] Problem with reading config")
}
err = json.Unmarshal(rawConf, &configType)
if err != nil {
return errors.Wrap(err, "[ readFile ] Problem with unmarshaling config")
}
return nil
}
// ReadUserConfigFromFile read user config from file
func ReadUserConfigFromFile(file string) (*UserConfigJSON, error) {
cfgJSON := &UserConfigJSON{}
err := readFile(file, cfgJSON)
if err != nil {
return nil, errors.Wrap(err, "[ readUserConfigFromFile ] ")
}
ks := platformpolicy.NewKeyProcessor()
if cfgJSON.PrivateKey == "" {
privKey, err := ks.GeneratePrivateKey()
if err != nil {
return nil, errors.Wrap(err, "[ readUserConfigFromFile ] ")
}
privKeyStr, err := ks.ExportPrivateKeyPEM(privKey)
if err != nil {
return nil, errors.Wrap(err, "[ readUserConfigFromFile ] ")
}
cfgJSON.PrivateKey = string(privKeyStr)
}
cfgJSON.privateKeyObject, err = ks.ImportPrivateKeyPEM([]byte(cfgJSON.PrivateKey))
if err != nil {
return nil, errors.Wrap(err, "[ readUserConfigFromFile ] Problem with reading private key")
}
return cfgJSON, nil
}
// ReadRequestParamsFromFile read request config from file
func ReadRequestParamsFromFile(path string) (*Params, error) {
rParams := &Params{}
err := readFile(path, rParams)
if err != nil {
return nil, errors.Wrap(err, "failed to read call params from file")
}
return rParams, nil
}
// CreateUserConfig creates user config from arguments
func CreateUserConfig(caller string, privKey string, publicKey string) (*UserConfigJSON, error) {
userConfig := UserConfigJSON{PrivateKey: privKey, Caller: caller, PublicKey: publicKey}
var err error
ks := platformpolicy.NewKeyProcessor()
userConfig.privateKeyObject, err = ks.ImportPrivateKeyPEM([]byte(privKey))
return &userConfig, err
}