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/*
* Minio Go Library for Amazon S3 Compatible Cloud Storage
* Copyright 2017 Minio, 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 credentials
import "os"
// A EnvMinio retrieves credentials from the environment variables of the
// running process. EnvMinioironment credentials never expire.
//
// EnvMinioironment variables used:
//
// * Access Key ID: MINIO_ACCESS_KEY.
// * Secret Access Key: MINIO_SECRET_KEY.
type EnvMinio struct {
retrieved bool
}
// NewEnvMinio returns a pointer to a new Credentials object
// wrapping the environment variable provider.
func NewEnvMinio() *Credentials {
return New(&EnvMinio{})
}
// Retrieve retrieves the keys from the environment.
func (e *EnvMinio) Retrieve() (Value, error) {
e.retrieved = false
id := os.Getenv("MINIO_ACCESS_KEY")
secret := os.Getenv("MINIO_SECRET_KEY")
signerType := SignatureV4
if id == "" || secret == "" {
signerType = SignatureAnonymous
}
e.retrieved = true
return Value{
AccessKeyID: id,
SecretAccessKey: secret,
SignerType: signerType,
}, nil
}
// IsExpired returns if the credentials have been retrieved.
func (e *EnvMinio) IsExpired() bool {
return !e.retrieved
}
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