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/*
* Copyright 2018 Intel Corporation, Inc
*
* 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 config
import (
"encoding/json"
"os"
smslogger "sms/log"
)
// SMSConfiguration loads up all the values that are used to configure
// backend implementations
// TODO: Review these and see if they can be created/discovered dynamically
type SMSConfiguration struct {
CAFile string `json:"cafile"`
ServerCert string `json:"servercert"`
ServerKey string `json:"serverkey"`
Password string `json:"password"`
BackendAddress string `json:"smsdbaddress"`
VaultToken string `json:"vaulttoken"`
DisableTLS bool `json:"disable_tls"`
BackendAddressEnvVariable string `json:"smsdburlenv"`
}
// SMSConfig is the structure that stores the configuration
var SMSConfig *SMSConfiguration
// ReadConfigFile reads the specified smsConfig file to setup some env variables
func ReadConfigFile(file string) (*SMSConfiguration, error) {
if SMSConfig == nil {
f, err := os.Open(file)
if err != nil {
return nil, err
}
defer f.Close()
// Default behaviour is to enable TLS
SMSConfig = &SMSConfiguration{DisableTLS: false}
decoder := json.NewDecoder(f)
err = decoder.Decode(SMSConfig)
if err != nil {
return nil, err
}
if SMSConfig.BackendAddress == "" && SMSConfig.BackendAddressEnvVariable != "" {
// Get the value from ENV variable
smslogger.WriteInfo("Using Environment Variable: " + SMSConfig.BackendAddressEnvVariable)
SMSConfig.BackendAddress = os.Getenv(SMSConfig.BackendAddressEnvVariable)
}
}
return SMSConfig, nil
}
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