sftpgo-mirror/httpd/api_maintenance.go
Nicola Murino 5582f5c811
data provider: add automatic backups
Automatic backup are enabled by default, a new backup will be saved
each day at midnight.

The backups_path setting was moved from the httpd section to the
data_provider one, please adjust your configuration file and or your
env vars

Signed-off-by: Nicola Murino <nicola.murino@gmail.com>
2022-03-13 13:45:07 +01:00

373 lines
12 KiB
Go

package httpd
import (
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"os"
"path/filepath"
"strconv"
"strings"
"github.com/go-chi/render"
"github.com/drakkan/sftpgo/v2/common"
"github.com/drakkan/sftpgo/v2/dataprovider"
"github.com/drakkan/sftpgo/v2/logger"
"github.com/drakkan/sftpgo/v2/util"
"github.com/drakkan/sftpgo/v2/vfs"
)
func validateBackupFile(outputFile string) (string, error) {
if outputFile == "" {
return "", errors.New("invalid or missing output-file")
}
if filepath.IsAbs(outputFile) {
return "", fmt.Errorf("invalid output-file %#v: it must be a relative path", outputFile)
}
if strings.Contains(outputFile, "..") {
return "", fmt.Errorf("invalid output-file %#v", outputFile)
}
outputFile = filepath.Join(dataprovider.GetBackupsPath(), outputFile)
return outputFile, nil
}
func dumpData(w http.ResponseWriter, r *http.Request) {
r.Body = http.MaxBytesReader(w, r.Body, maxRequestSize)
var outputFile, outputData, indent string
if _, ok := r.URL.Query()["output-file"]; ok {
outputFile = strings.TrimSpace(r.URL.Query().Get("output-file"))
}
if _, ok := r.URL.Query()["output-data"]; ok {
outputData = strings.TrimSpace(r.URL.Query().Get("output-data"))
}
if _, ok := r.URL.Query()["indent"]; ok {
indent = strings.TrimSpace(r.URL.Query().Get("indent"))
}
if outputData != "1" {
var err error
outputFile, err = validateBackupFile(outputFile)
if err != nil {
sendAPIResponse(w, r, err, "", http.StatusBadRequest)
return
}
err = os.MkdirAll(filepath.Dir(outputFile), 0700)
if err != nil {
logger.Error(logSender, "", "dumping data error: %v, output file: %#v", err, outputFile)
sendAPIResponse(w, r, err, "", getRespStatus(err))
return
}
logger.Debug(logSender, "", "dumping data to: %#v", outputFile)
}
backup, err := dataprovider.DumpData()
if err != nil {
logger.Error(logSender, "", "dumping data error: %v, output file: %#v", err, outputFile)
sendAPIResponse(w, r, err, "", getRespStatus(err))
return
}
if outputData == "1" {
w.Header().Set("Content-Disposition", "attachment; filename=\"sftpgo-backup.json\"")
render.JSON(w, r, backup)
return
}
var dump []byte
if indent == "1" {
dump, err = json.MarshalIndent(backup, "", " ")
} else {
dump, err = json.Marshal(backup)
}
if err == nil {
err = os.WriteFile(outputFile, dump, 0600)
}
if err != nil {
logger.Warn(logSender, "", "dumping data error: %v, output file: %#v", err, outputFile)
sendAPIResponse(w, r, err, "", getRespStatus(err))
return
}
logger.Debug(logSender, "", "dumping data completed, output file: %#v, error: %v", outputFile, err)
sendAPIResponse(w, r, err, "Data saved", http.StatusOK)
}
func loadDataFromRequest(w http.ResponseWriter, r *http.Request) {
r.Body = http.MaxBytesReader(w, r.Body, MaxRestoreSize)
claims, err := getTokenClaims(r)
if err != nil || claims.Username == "" {
sendAPIResponse(w, r, err, "Invalid token claims", http.StatusBadRequest)
return
}
_, scanQuota, mode, err := getLoaddataOptions(r)
if err != nil {
sendAPIResponse(w, r, err, "", http.StatusBadRequest)
return
}
content, err := io.ReadAll(r.Body)
if err != nil || len(content) == 0 {
if len(content) == 0 {
err = util.NewValidationError("request body is required")
}
sendAPIResponse(w, r, err, "", getRespStatus(err))
return
}
if err := restoreBackup(content, "", scanQuota, mode, claims.Username, util.GetIPFromRemoteAddress(r.RemoteAddr)); err != nil {
sendAPIResponse(w, r, err, "", getRespStatus(err))
}
sendAPIResponse(w, r, err, "Data restored", http.StatusOK)
}
func loadData(w http.ResponseWriter, r *http.Request) {
r.Body = http.MaxBytesReader(w, r.Body, maxRequestSize)
claims, err := getTokenClaims(r)
if err != nil || claims.Username == "" {
sendAPIResponse(w, r, err, "Invalid token claims", http.StatusBadRequest)
return
}
inputFile, scanQuota, mode, err := getLoaddataOptions(r)
if err != nil {
sendAPIResponse(w, r, err, "", http.StatusBadRequest)
return
}
if !filepath.IsAbs(inputFile) {
sendAPIResponse(w, r, fmt.Errorf("invalid input_file %#v: it must be an absolute path", inputFile), "", http.StatusBadRequest)
return
}
fi, err := os.Stat(inputFile)
if err != nil {
sendAPIResponse(w, r, err, "", getRespStatus(err))
return
}
if fi.Size() > MaxRestoreSize {
sendAPIResponse(w, r, err, fmt.Sprintf("Unable to restore input file: %#v size too big: %v/%v bytes",
inputFile, fi.Size(), MaxRestoreSize), http.StatusBadRequest)
return
}
content, err := os.ReadFile(inputFile)
if err != nil {
sendAPIResponse(w, r, err, "", getRespStatus(err))
return
}
if err := restoreBackup(content, inputFile, scanQuota, mode, claims.Username, util.GetIPFromRemoteAddress(r.RemoteAddr)); err != nil {
sendAPIResponse(w, r, err, "", getRespStatus(err))
}
sendAPIResponse(w, r, err, "Data restored", http.StatusOK)
}
func restoreBackup(content []byte, inputFile string, scanQuota, mode int, executor, ipAddress string) error {
dump, err := dataprovider.ParseDumpData(content)
if err != nil {
return util.NewValidationError(fmt.Sprintf("Unable to parse backup content: %v", err))
}
if err = RestoreFolders(dump.Folders, inputFile, mode, scanQuota, executor, ipAddress); err != nil {
return err
}
if err = RestoreUsers(dump.Users, inputFile, mode, scanQuota, executor, ipAddress); err != nil {
return err
}
if err = RestoreAdmins(dump.Admins, inputFile, mode, executor, ipAddress); err != nil {
return err
}
if err = RestoreAPIKeys(dump.APIKeys, inputFile, mode, executor, ipAddress); err != nil {
return err
}
if err = RestoreShares(dump.Shares, inputFile, mode, executor, ipAddress); err != nil {
return err
}
logger.Debug(logSender, "", "backup restored, users: %v, folders: %v, admins: %vs",
len(dump.Users), len(dump.Folders), len(dump.Admins))
return nil
}
func getLoaddataOptions(r *http.Request) (string, int, int, error) {
var inputFile string
var err error
scanQuota := 0
restoreMode := 0
if _, ok := r.URL.Query()["input-file"]; ok {
inputFile = strings.TrimSpace(r.URL.Query().Get("input-file"))
}
if _, ok := r.URL.Query()["scan-quota"]; ok {
scanQuota, err = strconv.Atoi(r.URL.Query().Get("scan-quota"))
if err != nil {
err = fmt.Errorf("invalid scan_quota: %v", err)
return inputFile, scanQuota, restoreMode, err
}
}
if _, ok := r.URL.Query()["mode"]; ok {
restoreMode, err = strconv.Atoi(r.URL.Query().Get("mode"))
if err != nil {
err = fmt.Errorf("invalid mode: %v", err)
return inputFile, scanQuota, restoreMode, err
}
}
return inputFile, scanQuota, restoreMode, err
}
// RestoreFolders restores the specified folders
func RestoreFolders(folders []vfs.BaseVirtualFolder, inputFile string, mode, scanQuota int, executor, ipAddress string) error {
for _, folder := range folders {
folder := folder // pin
f, err := dataprovider.GetFolderByName(folder.Name)
if err == nil {
if mode == 1 {
logger.Debug(logSender, "", "loaddata mode 1, existing folder %#v not updated", folder.Name)
continue
}
folder.ID = f.ID
folder.Name = f.Name
err = dataprovider.UpdateFolder(&folder, f.Users, executor, ipAddress)
logger.Debug(logSender, "", "restoring existing folder: %+v, dump file: %#v, error: %v", folder, inputFile, err)
} else {
folder.Users = nil
err = dataprovider.AddFolder(&folder)
logger.Debug(logSender, "", "adding new folder: %+v, dump file: %#v, error: %v", folder, inputFile, err)
}
if err != nil {
return fmt.Errorf("unable to restore folder %#v: %w", folder.Name, err)
}
if scanQuota >= 1 {
if common.QuotaScans.AddVFolderQuotaScan(folder.Name) {
logger.Debug(logSender, "", "starting quota scan for restored folder: %#v", folder.Name)
go doFolderQuotaScan(folder) //nolint:errcheck
}
}
}
return nil
}
// RestoreShares restores the specified shares
func RestoreShares(shares []dataprovider.Share, inputFile string, mode int, executor,
ipAddress string,
) error {
for _, share := range shares {
share := share // pin
share.IsRestore = true
s, err := dataprovider.ShareExists(share.ShareID, "")
if err == nil {
if mode == 1 {
logger.Debug(logSender, "", "loaddata mode 1, existing share %#v not updated", share.ShareID)
continue
}
share.ID = s.ID
err = dataprovider.UpdateShare(&share, executor, ipAddress)
share.Password = redactedSecret
logger.Debug(logSender, "", "restoring existing share: %+v, dump file: %#v, error: %v", share, inputFile, err)
} else {
err = dataprovider.AddShare(&share, executor, ipAddress)
share.Password = redactedSecret
logger.Debug(logSender, "", "adding new share: %+v, dump file: %#v, error: %v", share, inputFile, err)
}
if err != nil {
return fmt.Errorf("unable to restore share %#v: %w", share.ShareID, err)
}
}
return nil
}
// RestoreAPIKeys restores the specified API keys
func RestoreAPIKeys(apiKeys []dataprovider.APIKey, inputFile string, mode int, executor, ipAddress string) error {
for _, apiKey := range apiKeys {
apiKey := apiKey // pin
if apiKey.Key == "" {
logger.Warn(logSender, "", "cannot restore empty API key")
return fmt.Errorf("cannot restore an empty API key: %+v", apiKey)
}
k, err := dataprovider.APIKeyExists(apiKey.KeyID)
if err == nil {
if mode == 1 {
logger.Debug(logSender, "", "loaddata mode 1, existing API key %#v not updated", apiKey.KeyID)
continue
}
apiKey.ID = k.ID
err = dataprovider.UpdateAPIKey(&apiKey, executor, ipAddress)
apiKey.Key = redactedSecret
logger.Debug(logSender, "", "restoring existing API key: %+v, dump file: %#v, error: %v", apiKey, inputFile, err)
} else {
err = dataprovider.AddAPIKey(&apiKey, executor, ipAddress)
apiKey.Key = redactedSecret
logger.Debug(logSender, "", "adding new API key: %+v, dump file: %#v, error: %v", apiKey, inputFile, err)
}
if err != nil {
return fmt.Errorf("unable to restore API key %#v: %w", apiKey.KeyID, err)
}
}
return nil
}
// RestoreAdmins restores the specified admins
func RestoreAdmins(admins []dataprovider.Admin, inputFile string, mode int, executor, ipAddress string) error {
for _, admin := range admins {
admin := admin // pin
a, err := dataprovider.AdminExists(admin.Username)
if err == nil {
if mode == 1 {
logger.Debug(logSender, "", "loaddata mode 1, existing admin %#v not updated", a.Username)
continue
}
admin.ID = a.ID
admin.Username = a.Username
err = dataprovider.UpdateAdmin(&admin, executor, ipAddress)
admin.Password = redactedSecret
logger.Debug(logSender, "", "restoring existing admin: %+v, dump file: %#v, error: %v", admin, inputFile, err)
} else {
err = dataprovider.AddAdmin(&admin, executor, ipAddress)
admin.Password = redactedSecret
logger.Debug(logSender, "", "adding new admin: %+v, dump file: %#v, error: %v", admin, inputFile, err)
}
if err != nil {
return fmt.Errorf("unable to restore admin %#v: %w", admin.Username, err)
}
}
return nil
}
// RestoreUsers restores the specified users
func RestoreUsers(users []dataprovider.User, inputFile string, mode, scanQuota int, executor, ipAddress string) error {
for _, user := range users {
user := user // pin
u, err := dataprovider.UserExists(user.Username)
if err == nil {
if mode == 1 {
logger.Debug(logSender, "", "loaddata mode 1, existing user %#v not updated", u.Username)
continue
}
user.ID = u.ID
user.Username = u.Username
err = dataprovider.UpdateUser(&user, executor, ipAddress)
user.Password = redactedSecret
logger.Debug(logSender, "", "restoring existing user: %+v, dump file: %#v, error: %v", user, inputFile, err)
if mode == 2 && err == nil {
disconnectUser(user.Username)
}
} else {
err = dataprovider.AddUser(&user, executor, ipAddress)
user.Password = redactedSecret
logger.Debug(logSender, "", "adding new user: %+v, dump file: %#v, error: %v", user, inputFile, err)
}
if err != nil {
return fmt.Errorf("unable to restore user %#v: %w", user.Username, err)
}
if scanQuota == 1 || (scanQuota == 2 && user.HasQuotaRestrictions()) {
if common.QuotaScans.AddUserQuotaScan(user.Username) {
logger.Debug(logSender, "", "starting quota scan for restored user: %#v", user.Username)
go doUserQuotaScan(user) //nolint:errcheck
}
}
}
return nil
}