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mc/cmd/session.go

139 lines
3.4 KiB
Go

/*
* MinIO Client, (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 cmd
import (
"os"
"path/filepath"
"strings"
"github.com/minio/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, 0700); 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
}
// removeSessionFile - remove the session file, ending with .json
func removeSessionFile(sid string) {
sessionFile, err := getSessionFile(sid)
if err != nil {
return
}
os.Remove(sessionFile)
}
// removeSessionDataFile - remove the session data file, ending with .data
func removeSessionDataFile(sid string) {
dataFile, err := getSessionDataFile(sid)
if err != nil {
return
}
os.Remove(dataFile)
}