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minio/utils.go

86 lines
2.2 KiB

/*
* Minio Cloud Storage, (C) 2015 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 main
import (
"encoding/base64"
"os"
"os/user"
"runtime"
"strconv"
"strings"
"github.com/minio/minio-xl/pkg/probe"
)
// isValidMD5 - verify if valid md5
func isValidMD5(md5 string) bool {
if md5 == "" {
return true
}
_, err := base64.StdEncoding.DecodeString(strings.TrimSpace(md5))
if err != nil {
return false
}
return true
}
/// http://docs.aws.amazon.com/AmazonS3/latest/dev/UploadingObjects.html
const (
// maximum object size per PUT request is 5GB
maxObjectSize = 1024 * 1024 * 1024 * 5
)
// isMaxObjectSize - verify if max object size
func isMaxObjectSize(size string) bool {
i, err := strconv.ParseInt(size, 10, 64)
if err != nil {
return true
}
if i > maxObjectSize {
return true
}
return false
}
// Workaround for docker images with fully static binary and 32bit linux operating systems.
// For static binaries NSS library will not be a part of the static binary hence user.Current() fails.
// For 32bit linux CGO is not enabled so it will not provide linux specific codebase.
func userCurrent() (*user.User, *probe.Error) {
if os.Getenv("DOCKERIMAGE") == "1" {
wd, err := os.Getwd()
if err != nil {
return nil, probe.NewError(err)
}
return &user.User{Uid: "0", Gid: "0", Username: "root", Name: "root", HomeDir: wd}, nil
}
if runtime.GOARCH == "386" && runtime.GOOS == "linux" {
return &user.User{
Uid: strconv.Itoa(os.Getuid()),
Gid: strconv.Itoa(os.Getgid()),
Username: os.Getenv("USER"),
Name: os.Getenv("USER"),
HomeDir: os.Getenv("HOME"),
}, nil
}
user, err := user.Current()
if err != nil {
return nil, probe.NewError(err)
}
return user, nil
}