mirror of
https://github.com/drakkan/sftpgo.git
synced 2024-11-24 16:40:26 +00:00
408 lines
14 KiB
Go
408 lines
14 KiB
Go
// Copyright (C) 2019-2022 Nicola Murino
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published
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// by the Free Software Foundation, version 3.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package httpd
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import (
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"net/http"
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"os"
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"path/filepath"
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"strconv"
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"strings"
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"github.com/go-chi/render"
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"github.com/drakkan/sftpgo/v2/common"
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"github.com/drakkan/sftpgo/v2/dataprovider"
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"github.com/drakkan/sftpgo/v2/logger"
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"github.com/drakkan/sftpgo/v2/util"
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"github.com/drakkan/sftpgo/v2/vfs"
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)
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func validateBackupFile(outputFile string) (string, error) {
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if outputFile == "" {
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return "", errors.New("invalid or missing output-file")
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}
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if filepath.IsAbs(outputFile) {
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return "", fmt.Errorf("invalid output-file %#v: it must be a relative path", outputFile)
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}
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if strings.Contains(outputFile, "..") {
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return "", fmt.Errorf("invalid output-file %#v", outputFile)
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}
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outputFile = filepath.Join(dataprovider.GetBackupsPath(), outputFile)
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return outputFile, nil
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}
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func dumpData(w http.ResponseWriter, r *http.Request) {
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r.Body = http.MaxBytesReader(w, r.Body, maxRequestSize)
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var outputFile, outputData, indent string
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if _, ok := r.URL.Query()["output-file"]; ok {
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outputFile = strings.TrimSpace(r.URL.Query().Get("output-file"))
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}
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if _, ok := r.URL.Query()["output-data"]; ok {
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outputData = strings.TrimSpace(r.URL.Query().Get("output-data"))
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}
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if _, ok := r.URL.Query()["indent"]; ok {
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indent = strings.TrimSpace(r.URL.Query().Get("indent"))
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}
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if outputData != "1" {
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var err error
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outputFile, err = validateBackupFile(outputFile)
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if err != nil {
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sendAPIResponse(w, r, err, "", http.StatusBadRequest)
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return
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}
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err = os.MkdirAll(filepath.Dir(outputFile), 0700)
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if err != nil {
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logger.Error(logSender, "", "dumping data error: %v, output file: %#v", err, outputFile)
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sendAPIResponse(w, r, err, "", getRespStatus(err))
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return
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}
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logger.Debug(logSender, "", "dumping data to: %#v", outputFile)
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}
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backup, err := dataprovider.DumpData()
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if err != nil {
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logger.Error(logSender, "", "dumping data error: %v, output file: %#v", err, outputFile)
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sendAPIResponse(w, r, err, "", getRespStatus(err))
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return
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}
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if outputData == "1" {
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w.Header().Set("Content-Disposition", "attachment; filename=\"sftpgo-backup.json\"")
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render.JSON(w, r, backup)
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return
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}
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var dump []byte
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if indent == "1" {
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dump, err = json.MarshalIndent(backup, "", " ")
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} else {
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dump, err = json.Marshal(backup)
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}
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if err == nil {
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err = os.WriteFile(outputFile, dump, 0600)
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}
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if err != nil {
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logger.Warn(logSender, "", "dumping data error: %v, output file: %#v", err, outputFile)
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sendAPIResponse(w, r, err, "", getRespStatus(err))
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return
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}
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logger.Debug(logSender, "", "dumping data completed, output file: %#v, error: %v", outputFile, err)
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sendAPIResponse(w, r, err, "Data saved", http.StatusOK)
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}
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func loadDataFromRequest(w http.ResponseWriter, r *http.Request) {
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r.Body = http.MaxBytesReader(w, r.Body, MaxRestoreSize)
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claims, err := getTokenClaims(r)
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if err != nil || claims.Username == "" {
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sendAPIResponse(w, r, err, "Invalid token claims", http.StatusBadRequest)
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return
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}
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_, scanQuota, mode, err := getLoaddataOptions(r)
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if err != nil {
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sendAPIResponse(w, r, err, "", http.StatusBadRequest)
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return
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}
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content, err := io.ReadAll(r.Body)
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if err != nil || len(content) == 0 {
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if len(content) == 0 {
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err = util.NewValidationError("request body is required")
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}
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sendAPIResponse(w, r, err, "", getRespStatus(err))
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return
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}
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if err := restoreBackup(content, "", scanQuota, mode, claims.Username, util.GetIPFromRemoteAddress(r.RemoteAddr)); err != nil {
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sendAPIResponse(w, r, err, "", getRespStatus(err))
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}
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sendAPIResponse(w, r, err, "Data restored", http.StatusOK)
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}
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func loadData(w http.ResponseWriter, r *http.Request) {
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r.Body = http.MaxBytesReader(w, r.Body, maxRequestSize)
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claims, err := getTokenClaims(r)
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if err != nil || claims.Username == "" {
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sendAPIResponse(w, r, err, "Invalid token claims", http.StatusBadRequest)
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return
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}
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inputFile, scanQuota, mode, err := getLoaddataOptions(r)
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if err != nil {
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sendAPIResponse(w, r, err, "", http.StatusBadRequest)
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return
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}
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if !filepath.IsAbs(inputFile) {
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sendAPIResponse(w, r, fmt.Errorf("invalid input_file %#v: it must be an absolute path", inputFile), "", http.StatusBadRequest)
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return
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}
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fi, err := os.Stat(inputFile)
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if err != nil {
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sendAPIResponse(w, r, err, "", getRespStatus(err))
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return
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}
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if fi.Size() > MaxRestoreSize {
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sendAPIResponse(w, r, err, fmt.Sprintf("Unable to restore input file: %#v size too big: %v/%v bytes",
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inputFile, fi.Size(), MaxRestoreSize), http.StatusBadRequest)
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return
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}
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content, err := os.ReadFile(inputFile)
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if err != nil {
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sendAPIResponse(w, r, err, "", getRespStatus(err))
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return
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}
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if err := restoreBackup(content, inputFile, scanQuota, mode, claims.Username, util.GetIPFromRemoteAddress(r.RemoteAddr)); err != nil {
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sendAPIResponse(w, r, err, "", getRespStatus(err))
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}
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sendAPIResponse(w, r, err, "Data restored", http.StatusOK)
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}
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func restoreBackup(content []byte, inputFile string, scanQuota, mode int, executor, ipAddress string) error {
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dump, err := dataprovider.ParseDumpData(content)
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if err != nil {
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return util.NewValidationError(fmt.Sprintf("unable to parse backup content: %v", err))
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}
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if err = RestoreFolders(dump.Folders, inputFile, mode, scanQuota, executor, ipAddress); err != nil {
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return err
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}
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if err = RestoreGroups(dump.Groups, inputFile, mode, executor, ipAddress); err != nil {
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return err
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}
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if err = RestoreUsers(dump.Users, inputFile, mode, scanQuota, executor, ipAddress); err != nil {
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return err
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}
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if err = RestoreAdmins(dump.Admins, inputFile, mode, executor, ipAddress); err != nil {
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return err
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}
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if err = RestoreAPIKeys(dump.APIKeys, inputFile, mode, executor, ipAddress); err != nil {
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return err
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}
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if err = RestoreShares(dump.Shares, inputFile, mode, executor, ipAddress); err != nil {
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return err
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}
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logger.Debug(logSender, "", "backup restored, users: %v, folders: %v, admins: %vs",
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len(dump.Users), len(dump.Folders), len(dump.Admins))
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return nil
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}
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func getLoaddataOptions(r *http.Request) (string, int, int, error) {
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var inputFile string
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var err error
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scanQuota := 0
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restoreMode := 0
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if _, ok := r.URL.Query()["input-file"]; ok {
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inputFile = strings.TrimSpace(r.URL.Query().Get("input-file"))
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}
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if _, ok := r.URL.Query()["scan-quota"]; ok {
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scanQuota, err = strconv.Atoi(r.URL.Query().Get("scan-quota"))
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if err != nil {
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err = fmt.Errorf("invalid scan_quota: %v", err)
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return inputFile, scanQuota, restoreMode, err
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}
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}
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if _, ok := r.URL.Query()["mode"]; ok {
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restoreMode, err = strconv.Atoi(r.URL.Query().Get("mode"))
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if err != nil {
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err = fmt.Errorf("invalid mode: %v", err)
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return inputFile, scanQuota, restoreMode, err
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}
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}
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return inputFile, scanQuota, restoreMode, err
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}
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// RestoreFolders restores the specified folders
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func RestoreFolders(folders []vfs.BaseVirtualFolder, inputFile string, mode, scanQuota int, executor, ipAddress string) error {
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for _, folder := range folders {
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folder := folder // pin
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f, err := dataprovider.GetFolderByName(folder.Name)
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if err == nil {
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if mode == 1 {
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logger.Debug(logSender, "", "loaddata mode 1, existing folder %#v not updated", folder.Name)
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continue
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}
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folder.ID = f.ID
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folder.Name = f.Name
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err = dataprovider.UpdateFolder(&folder, f.Users, f.Groups, executor, ipAddress)
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logger.Debug(logSender, "", "restoring existing folder %#v, dump file: %#v, error: %v", folder.Name, inputFile, err)
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} else {
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folder.Users = nil
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err = dataprovider.AddFolder(&folder, executor, ipAddress)
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logger.Debug(logSender, "", "adding new folder %#v, dump file: %#v, error: %v", folder.Name, inputFile, err)
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}
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if err != nil {
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return fmt.Errorf("unable to restore folder %#v: %w", folder.Name, err)
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}
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if scanQuota >= 1 {
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if common.QuotaScans.AddVFolderQuotaScan(folder.Name) {
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logger.Debug(logSender, "", "starting quota scan for restored folder: %#v", folder.Name)
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go doFolderQuotaScan(folder) //nolint:errcheck
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}
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}
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}
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return nil
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}
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// RestoreShares restores the specified shares
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func RestoreShares(shares []dataprovider.Share, inputFile string, mode int, executor,
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ipAddress string,
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) error {
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for _, share := range shares {
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share := share // pin
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share.IsRestore = true
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s, err := dataprovider.ShareExists(share.ShareID, "")
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if err == nil {
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if mode == 1 {
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logger.Debug(logSender, "", "loaddata mode 1, existing share %#v not updated", share.ShareID)
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continue
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}
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share.ID = s.ID
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err = dataprovider.UpdateShare(&share, executor, ipAddress)
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logger.Debug(logSender, "", "restoring existing share %#v, dump file: %#v, error: %v", share.ShareID, inputFile, err)
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} else {
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err = dataprovider.AddShare(&share, executor, ipAddress)
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logger.Debug(logSender, "", "adding new share %#v, dump file: %#v, error: %v", share.ShareID, inputFile, err)
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}
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if err != nil {
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return fmt.Errorf("unable to restore share %#v: %w", share.ShareID, err)
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}
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}
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return nil
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}
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// RestoreAPIKeys restores the specified API keys
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func RestoreAPIKeys(apiKeys []dataprovider.APIKey, inputFile string, mode int, executor, ipAddress string) error {
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for _, apiKey := range apiKeys {
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apiKey := apiKey // pin
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if apiKey.Key == "" {
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logger.Warn(logSender, "", "cannot restore empty API key")
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return fmt.Errorf("cannot restore an empty API key: %+v", apiKey)
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}
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k, err := dataprovider.APIKeyExists(apiKey.KeyID)
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if err == nil {
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if mode == 1 {
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logger.Debug(logSender, "", "loaddata mode 1, existing API key %#v not updated", apiKey.KeyID)
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continue
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}
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apiKey.ID = k.ID
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err = dataprovider.UpdateAPIKey(&apiKey, executor, ipAddress)
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logger.Debug(logSender, "", "restoring existing API key %#v, dump file: %#v, error: %v", apiKey.KeyID, inputFile, err)
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} else {
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err = dataprovider.AddAPIKey(&apiKey, executor, ipAddress)
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logger.Debug(logSender, "", "adding new API key %#v, dump file: %#v, error: %v", apiKey.KeyID, inputFile, err)
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}
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if err != nil {
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return fmt.Errorf("unable to restore API key %#v: %w", apiKey.KeyID, err)
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}
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}
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return nil
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}
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// RestoreAdmins restores the specified admins
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func RestoreAdmins(admins []dataprovider.Admin, inputFile string, mode int, executor, ipAddress string) error {
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for _, admin := range admins {
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admin := admin // pin
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a, err := dataprovider.AdminExists(admin.Username)
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if err == nil {
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if mode == 1 {
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logger.Debug(logSender, "", "loaddata mode 1, existing admin %#v not updated", a.Username)
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continue
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}
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admin.ID = a.ID
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admin.Username = a.Username
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err = dataprovider.UpdateAdmin(&admin, executor, ipAddress)
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logger.Debug(logSender, "", "restoring existing admin %#v, dump file: %#v, error: %v", admin.Username, inputFile, err)
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} else {
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err = dataprovider.AddAdmin(&admin, executor, ipAddress)
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logger.Debug(logSender, "", "adding new admin %#v, dump file: %#v, error: %v", admin.Username, inputFile, err)
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}
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if err != nil {
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return fmt.Errorf("unable to restore admin %#v: %w", admin.Username, err)
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}
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}
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return nil
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}
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// RestoreGroups restores the specified groups
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func RestoreGroups(groups []dataprovider.Group, inputFile string, mode int, executor, ipAddress string) error {
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for _, group := range groups {
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group := group // pin
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g, err := dataprovider.GroupExists(group.Name)
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if err == nil {
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if mode == 1 {
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logger.Debug(logSender, "", "loaddata mode 1, existing group %#v not updated", g.Name)
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continue
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}
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group.ID = g.ID
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group.Name = g.Name
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err = dataprovider.UpdateGroup(&group, g.Users, executor, ipAddress)
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logger.Debug(logSender, "", "restoring existing group: %#v, dump file: %#v, error: %v", group.Name, inputFile, err)
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} else {
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err = dataprovider.AddGroup(&group, executor, ipAddress)
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logger.Debug(logSender, "", "adding new group: %#v, dump file: %#v, error: %v", group.Name, inputFile, err)
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}
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if err != nil {
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return fmt.Errorf("unable to restore group %#v: %w", group.Name, err)
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}
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}
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return nil
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}
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// RestoreUsers restores the specified users
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func RestoreUsers(users []dataprovider.User, inputFile string, mode, scanQuota int, executor, ipAddress string) error {
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for _, user := range users {
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user := user // pin
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u, err := dataprovider.UserExists(user.Username)
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if err == nil {
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if mode == 1 {
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logger.Debug(logSender, "", "loaddata mode 1, existing user %#v not updated", u.Username)
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continue
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}
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user.ID = u.ID
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user.Username = u.Username
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err = dataprovider.UpdateUser(&user, executor, ipAddress)
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logger.Debug(logSender, "", "restoring existing user: %#v, dump file: %#v, error: %v", user.Username, inputFile, err)
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if mode == 2 && err == nil {
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disconnectUser(user.Username)
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}
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} else {
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err = dataprovider.AddUser(&user, executor, ipAddress)
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logger.Debug(logSender, "", "adding new user: %#v, dump file: %#v, error: %v", user.Username, inputFile, err)
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}
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if err != nil {
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return fmt.Errorf("unable to restore user %#v: %w", user.Username, err)
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}
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if scanQuota == 1 || (scanQuota == 2 && user.HasQuotaRestrictions()) {
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if common.QuotaScans.AddUserQuotaScan(user.Username) {
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logger.Debug(logSender, "", "starting quota scan for restored user: %#v", user.Username)
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go doUserQuotaScan(user) //nolint:errcheck
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}
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}
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}
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return nil
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}
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