sftpgo-mirror/cmd/portable.go
Nicola Murino ad53429cf1 add support for build tag to allow to disable some features
The following build tags are available:

- "nogcs", disable Google Cloud Storage backend
- "nos3", disable S3 Compabible Object Storage backends
- "nobolt", disable Bolt data provider
- "nomysql", disable MySQL data provider
- "nopgsql", disable PostgreSQL data provider
- "nosqlite", disable SQLite data provider
- "noportable", disable portable mode
2020-05-23 11:58:05 +02:00

241 lines
9.5 KiB
Go

// +build !noportable
package cmd
import (
"encoding/base64"
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"strings"
"github.com/spf13/cobra"
"github.com/drakkan/sftpgo/dataprovider"
"github.com/drakkan/sftpgo/service"
"github.com/drakkan/sftpgo/sftpd"
"github.com/drakkan/sftpgo/utils"
"github.com/drakkan/sftpgo/vfs"
)
var (
directoryToServe string
portableSFTPDPort int
portableAdvertiseService bool
portableAdvertiseCredentials bool
portableUsername string
portablePassword string
portableLogFile string
portableLogVerbose bool
portablePublicKeys []string
portablePermissions []string
portableSSHCommands []string
portableAllowedExtensions []string
portableDeniedExtensions []string
portableFsProvider int
portableS3Bucket string
portableS3Region string
portableS3AccessKey string
portableS3AccessSecret string
portableS3Endpoint string
portableS3StorageClass string
portableS3KeyPrefix string
portableS3ULPartSize int
portableS3ULConcurrency int
portableGCSBucket string
portableGCSCredentialsFile string
portableGCSAutoCredentials int
portableGCSStorageClass string
portableGCSKeyPrefix string
portableCmd = &cobra.Command{
Use: "portable",
Short: "Serve a single directory",
Long: `To serve the current working directory with auto generated credentials simply use:
sftpgo portable
Please take a look at the usage below to customize the serving parameters`,
Run: func(cmd *cobra.Command, args []string) {
portableDir := directoryToServe
if !filepath.IsAbs(portableDir) {
if portableFsProvider == 0 {
portableDir, _ = filepath.Abs(portableDir)
} else {
portableDir = os.TempDir()
}
}
permissions := make(map[string][]string)
permissions["/"] = portablePermissions
portableGCSCredentials := ""
if portableFsProvider == 2 && len(portableGCSCredentialsFile) > 0 {
fi, err := os.Stat(portableGCSCredentialsFile)
if err != nil {
fmt.Printf("Invalid GCS credentials file: %v\n", err)
return
}
if fi.Size() > 1048576 {
fmt.Printf("Invalid GCS credentials file: %#v is too big %v/1048576 bytes\n", portableGCSCredentialsFile,
fi.Size())
return
}
creds, err := ioutil.ReadFile(portableGCSCredentialsFile)
if err != nil {
fmt.Printf("Unable to read credentials file: %v\n", err)
}
portableGCSCredentials = base64.StdEncoding.EncodeToString(creds)
portableGCSAutoCredentials = 0
}
service := service.Service{
ConfigDir: filepath.Clean(defaultConfigDir),
ConfigFile: defaultConfigName,
LogFilePath: portableLogFile,
LogMaxSize: defaultLogMaxSize,
LogMaxBackups: defaultLogMaxBackup,
LogMaxAge: defaultLogMaxAge,
LogCompress: defaultLogCompress,
LogVerbose: portableLogVerbose,
Profiler: defaultProfiler,
Shutdown: make(chan bool),
PortableMode: 1,
PortableUser: dataprovider.User{
Username: portableUsername,
Password: portablePassword,
PublicKeys: portablePublicKeys,
Permissions: permissions,
HomeDir: portableDir,
Status: 1,
FsConfig: dataprovider.Filesystem{
Provider: portableFsProvider,
S3Config: vfs.S3FsConfig{
Bucket: portableS3Bucket,
Region: portableS3Region,
AccessKey: portableS3AccessKey,
AccessSecret: portableS3AccessSecret,
Endpoint: portableS3Endpoint,
StorageClass: portableS3StorageClass,
KeyPrefix: portableS3KeyPrefix,
UploadPartSize: int64(portableS3ULPartSize),
UploadConcurrency: portableS3ULConcurrency,
},
GCSConfig: vfs.GCSFsConfig{
Bucket: portableGCSBucket,
Credentials: portableGCSCredentials,
AutomaticCredentials: portableGCSAutoCredentials,
StorageClass: portableGCSStorageClass,
KeyPrefix: portableGCSKeyPrefix,
},
},
Filters: dataprovider.UserFilters{
FileExtensions: parseFileExtensionsFilters(),
},
},
}
if err := service.StartPortableMode(portableSFTPDPort, portableSSHCommands, portableAdvertiseService,
portableAdvertiseCredentials); err == nil {
service.Wait()
}
},
}
)
func init() {
utils.AddFeature("+portable")
portableCmd.Flags().StringVarP(&directoryToServe, "directory", "d", ".",
"Path to the directory to serve. This can be an absolute path or a path relative to the current directory")
portableCmd.Flags().IntVarP(&portableSFTPDPort, "sftpd-port", "s", 0, "0 means a random non privileged port")
portableCmd.Flags().StringSliceVarP(&portableSSHCommands, "ssh-commands", "c", sftpd.GetDefaultSSHCommands(),
"SSH commands to enable. \"*\" means any supported SSH command including scp")
portableCmd.Flags().StringVarP(&portableUsername, "username", "u", "", "Leave empty to use an auto generated value")
portableCmd.Flags().StringVarP(&portablePassword, "password", "p", "", "Leave empty to use an auto generated value")
portableCmd.Flags().StringVarP(&portableLogFile, logFilePathFlag, "l", "", "Leave empty to disable logging")
portableCmd.Flags().BoolVarP(&portableLogVerbose, logVerboseFlag, "v", false, "Enable verbose logs")
portableCmd.Flags().StringSliceVarP(&portablePublicKeys, "public-key", "k", []string{}, "")
portableCmd.Flags().StringSliceVarP(&portablePermissions, "permissions", "g", []string{"list", "download"},
"User's permissions. \"*\" means any permission")
portableCmd.Flags().StringArrayVar(&portableAllowedExtensions, "allowed-extensions", []string{},
"Allowed file extensions case insensitive. The format is /dir::ext1,ext2. For example: \"/somedir::.jpg,.png\"")
portableCmd.Flags().StringArrayVar(&portableDeniedExtensions, "denied-extensions", []string{},
"Denied file extensions case insensitive. The format is /dir::ext1,ext2. For example: \"/somedir::.jpg,.png\"")
portableCmd.Flags().BoolVarP(&portableAdvertiseService, "advertise-service", "S", true,
"Advertise SFTP service using multicast DNS")
portableCmd.Flags().BoolVarP(&portableAdvertiseCredentials, "advertise-credentials", "C", false,
"If the SFTP service is advertised via multicast DNS, this flag allows to put username/password inside the advertised TXT record")
portableCmd.Flags().IntVarP(&portableFsProvider, "fs-provider", "f", 0, "0 means local filesystem, 1 Amazon S3 compatible, "+
"2 Google Cloud Storage")
portableCmd.Flags().StringVar(&portableS3Bucket, "s3-bucket", "", "")
portableCmd.Flags().StringVar(&portableS3Region, "s3-region", "", "")
portableCmd.Flags().StringVar(&portableS3AccessKey, "s3-access-key", "", "")
portableCmd.Flags().StringVar(&portableS3AccessSecret, "s3-access-secret", "", "")
portableCmd.Flags().StringVar(&portableS3Endpoint, "s3-endpoint", "", "")
portableCmd.Flags().StringVar(&portableS3StorageClass, "s3-storage-class", "", "")
portableCmd.Flags().StringVar(&portableS3KeyPrefix, "s3-key-prefix", "", "Allows to restrict access to the virtual folder "+
"identified by this prefix and its contents")
portableCmd.Flags().IntVar(&portableS3ULPartSize, "s3-upload-part-size", 5, "The buffer size for multipart uploads (MB)")
portableCmd.Flags().IntVar(&portableS3ULConcurrency, "s3-upload-concurrency", 2, "How many parts are uploaded in parallel")
portableCmd.Flags().StringVar(&portableGCSBucket, "gcs-bucket", "", "")
portableCmd.Flags().StringVar(&portableGCSStorageClass, "gcs-storage-class", "", "")
portableCmd.Flags().StringVar(&portableGCSKeyPrefix, "gcs-key-prefix", "", "Allows to restrict access to the virtual folder "+
"identified by this prefix and its contents")
portableCmd.Flags().StringVar(&portableGCSCredentialsFile, "gcs-credentials-file", "", "Google Cloud Storage JSON credentials file")
portableCmd.Flags().IntVar(&portableGCSAutoCredentials, "gcs-automatic-credentials", 1, "0 means explicit credentials using a JSON "+
"credentials file, 1 automatic")
rootCmd.AddCommand(portableCmd)
}
func parseFileExtensionsFilters() []dataprovider.ExtensionsFilter {
var extensions []dataprovider.ExtensionsFilter
for _, val := range portableAllowedExtensions {
p, exts := getExtensionsFilterValues(strings.TrimSpace(val))
if len(p) > 0 {
extensions = append(extensions, dataprovider.ExtensionsFilter{
Path: path.Clean(p),
AllowedExtensions: exts,
DeniedExtensions: []string{},
})
}
}
for _, val := range portableDeniedExtensions {
p, exts := getExtensionsFilterValues(strings.TrimSpace(val))
if len(p) > 0 {
found := false
for index, e := range extensions {
if path.Clean(e.Path) == path.Clean(p) {
extensions[index].DeniedExtensions = append(extensions[index].DeniedExtensions, exts...)
found = true
break
}
}
if !found {
extensions = append(extensions, dataprovider.ExtensionsFilter{
Path: path.Clean(p),
AllowedExtensions: []string{},
DeniedExtensions: exts,
})
}
}
}
return extensions
}
func getExtensionsFilterValues(value string) (string, []string) {
if strings.Contains(value, "::") {
dirExts := strings.Split(value, "::")
if len(dirExts) > 1 {
dir := strings.TrimSpace(dirExts[0])
exts := []string{}
for _, e := range strings.Split(dirExts[1], ",") {
cleanedExt := strings.TrimSpace(e)
if len(cleanedExt) > 0 {
exts = append(exts, cleanedExt)
}
}
if len(dir) > 0 && len(exts) > 0 {
return dir, exts
}
}
}
return "", nil
}