forked from minio/mc
/
session.go
134 lines (110 loc) · 3.45 KB
/
session.go
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// Copyright (c) 2015-2022 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"crypto/sha256"
"encoding/hex"
"os"
"path/filepath"
"strings"
"github.com/trinet2005/oss-mc/pkg/probe"
)
// migrateSession migrates all previous migration to latest.
func migrateSession() {
// We no longer support sessions older than v5. They will be removed.
migrateSessionV5ToV6()
// Migrate V6 to V7.
migrateSessionV6ToV7()
// Migrate V7 to V8
migrateSessionV7ToV8()
}
// createSessionDir - create session directory.
func createSessionDir() *probe.Error {
sessionDir, err := getSessionDir()
if err != nil {
return err.Trace()
}
if e := os.MkdirAll(sessionDir, 0o700); e != nil {
return probe.NewError(e)
}
return nil
}
// getSessionDir - get session directory.
func getSessionDir() (string, *probe.Error) {
configDir, err := getMcConfigDir()
if err != nil {
return "", err.Trace()
}
sessionDir := filepath.Join(configDir, globalSessionDir)
return sessionDir, nil
}
// isSessionDirExists - verify if session directory exists.
func isSessionDirExists() bool {
sessionDir, err := getSessionDir()
fatalIf(err.Trace(), "Unable to determine session folder.")
if _, e := os.Stat(sessionDir); e != nil {
return false
}
return true
}
// getSessionFile - get current session file.
func getSessionFile(sid string) (string, *probe.Error) {
sessionDir, err := getSessionDir()
if err != nil {
return "", err.Trace()
}
sessionFile := filepath.Join(sessionDir, sid+".json")
return sessionFile, nil
}
// isSessionExists verifies if given session exists.
func isSessionExists(sid string) bool {
sessionFile, err := getSessionFile(sid)
fatalIf(err.Trace(sid), "Unable to determine session filename for `"+sid+"`.")
if _, e := os.Stat(sessionFile); e != nil {
return false
}
return true // Session exists.
}
// getSessionDataFile - get session data file for a given session.
func getSessionDataFile(sid string) (string, *probe.Error) {
sessionDir, err := getSessionDir()
if err != nil {
return "", err.Trace()
}
sessionDataFile := filepath.Join(sessionDir, sid+".data")
return sessionDataFile, nil
}
// getSessionIDs - get all active sessions.
func getSessionIDs() (sids []string) {
sessionDir, err := getSessionDir()
fatalIf(err.Trace(), "Unable to access session folder.")
sessionList, e := filepath.Glob(sessionDir + "/*.json")
fatalIf(probe.NewError(e), "Unable to access session folder `"+sessionDir+"`.")
for _, path := range sessionList {
sids = append(sids, strings.TrimSuffix(filepath.Base(path), ".json"))
}
return sids
}
func getHash(prefix string, args []string) string {
hasher := sha256.New()
for _, arg := range args {
if _, err := hasher.Write([]byte(arg)); err != nil {
panic(err)
}
}
return prefix + "-" + hex.EncodeToString(hasher.Sum(nil))
}