490 lines
20 KiB
Go
490 lines
20 KiB
Go
// Copyright (C) 2019-2023 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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//go:build !noportable
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// +build !noportable
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package cmd
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import (
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"fmt"
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"os"
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"path"
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"path/filepath"
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"strings"
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"github.com/sftpgo/sdk"
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"github.com/spf13/cobra"
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"github.com/drakkan/sftpgo/v2/internal/common"
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"github.com/drakkan/sftpgo/v2/internal/dataprovider"
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"github.com/drakkan/sftpgo/v2/internal/kms"
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"github.com/drakkan/sftpgo/v2/internal/service"
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"github.com/drakkan/sftpgo/v2/internal/sftpd"
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"github.com/drakkan/sftpgo/v2/internal/version"
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"github.com/drakkan/sftpgo/v2/internal/vfs"
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)
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var (
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directoryToServe string
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portableSFTPDPort int
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portableUsername string
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portablePassword string
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portablePasswordFile string
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portableStartDir string
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portableLogFile string
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portableLogLevel string
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portableLogUTCTime bool
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portablePublicKeys []string
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portablePermissions []string
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portableSSHCommands []string
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portableAllowedPatterns []string
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portableDeniedPatterns []string
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portableFsProvider string
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portableS3Bucket string
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portableS3Region string
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portableS3AccessKey string
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portableS3AccessSecret string
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portableS3RoleARN string
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portableS3Endpoint string
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portableS3StorageClass string
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portableS3ACL string
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portableS3KeyPrefix string
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portableS3ULPartSize int
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portableS3ULConcurrency int
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portableS3ForcePathStyle bool
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portableGCSBucket string
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portableGCSCredentialsFile string
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portableGCSAutoCredentials int
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portableGCSStorageClass string
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portableGCSKeyPrefix string
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portableFTPDPort int
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portableFTPSCert string
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portableFTPSKey string
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portableWebDAVPort int
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portableWebDAVCert string
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portableWebDAVKey string
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portableAzContainer string
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portableAzAccountName string
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portableAzAccountKey string
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portableAzEndpoint string
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portableAzAccessTier string
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portableAzSASURL string
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portableAzKeyPrefix string
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portableAzULPartSize int
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portableAzULConcurrency int
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portableAzDLPartSize int
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portableAzDLConcurrency int
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portableAzUseEmulator bool
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portableCryptPassphrase string
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portableSFTPEndpoint string
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portableSFTPUsername string
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portableSFTPPassword string
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portableSFTPPrivateKeyPath string
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portableSFTPFingerprints []string
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portableSFTPPrefix string
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portableSFTPDisableConcurrentReads bool
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portableSFTPDBufferSize int64
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portableCmd = &cobra.Command{
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Use: "portable",
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Short: "Serve a single directory/account",
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Long: `To serve the current working directory with auto generated credentials simply
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use:
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$ sftpgo portable
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Please take a look at the usage below to customize the serving parameters`,
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Run: func(_ *cobra.Command, _ []string) {
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portableDir := directoryToServe
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fsProvider := sdk.GetProviderByName(portableFsProvider)
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if !filepath.IsAbs(portableDir) {
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if fsProvider == sdk.LocalFilesystemProvider {
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portableDir, _ = filepath.Abs(portableDir)
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} else {
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portableDir = os.TempDir()
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}
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}
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permissions := make(map[string][]string)
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permissions["/"] = portablePermissions
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portableGCSCredentials := ""
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if fsProvider == sdk.GCSFilesystemProvider && portableGCSCredentialsFile != "" {
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contents, err := getFileContents(portableGCSCredentialsFile)
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if err != nil {
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fmt.Printf("Unable to get GCS credentials: %v\n", err)
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os.Exit(1)
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}
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portableGCSCredentials = contents
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portableGCSAutoCredentials = 0
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}
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portableSFTPPrivateKey := ""
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if fsProvider == sdk.SFTPFilesystemProvider && portableSFTPPrivateKeyPath != "" {
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contents, err := getFileContents(portableSFTPPrivateKeyPath)
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if err != nil {
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fmt.Printf("Unable to get SFTP private key: %v\n", err)
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os.Exit(1)
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}
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portableSFTPPrivateKey = contents
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}
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if portableFTPDPort >= 0 && portableFTPSCert != "" && portableFTPSKey != "" {
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keyPairs := []common.TLSKeyPair{
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{
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Cert: portableFTPSCert,
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Key: portableFTPSKey,
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ID: common.DefaultTLSKeyPaidID,
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},
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}
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_, err := common.NewCertManager(keyPairs, filepath.Clean(defaultConfigDir),
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"FTP portable")
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if err != nil {
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fmt.Printf("Unable to load FTPS key pair, cert file %q key file %q error: %v\n",
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portableFTPSCert, portableFTPSKey, err)
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os.Exit(1)
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}
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}
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if portableWebDAVPort > 0 && portableWebDAVCert != "" && portableWebDAVKey != "" {
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keyPairs := []common.TLSKeyPair{
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{
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Cert: portableWebDAVCert,
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Key: portableWebDAVKey,
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ID: common.DefaultTLSKeyPaidID,
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},
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}
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_, err := common.NewCertManager(keyPairs, filepath.Clean(defaultConfigDir),
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"WebDAV portable")
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if err != nil {
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fmt.Printf("Unable to load WebDAV key pair, cert file %q key file %q error: %v\n",
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portableWebDAVCert, portableWebDAVKey, err)
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os.Exit(1)
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}
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}
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pwd := portablePassword
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if portablePasswordFile != "" {
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content, err := os.ReadFile(portablePasswordFile)
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if err != nil {
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fmt.Printf("Unable to read password file %q: %v", portablePasswordFile, err)
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os.Exit(1)
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}
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pwd = strings.TrimSpace(string(content))
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}
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service.SetGraceTime(graceTime)
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service := service.Service{
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ConfigDir: filepath.Clean(defaultConfigDir),
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ConfigFile: defaultConfigFile,
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LogFilePath: portableLogFile,
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LogMaxSize: defaultLogMaxSize,
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LogMaxBackups: defaultLogMaxBackup,
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LogMaxAge: defaultLogMaxAge,
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LogCompress: defaultLogCompress,
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LogLevel: portableLogLevel,
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LogUTCTime: portableLogUTCTime,
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Shutdown: make(chan bool),
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PortableMode: 1,
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PortableUser: dataprovider.User{
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BaseUser: sdk.BaseUser{
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Username: portableUsername,
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Password: pwd,
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PublicKeys: portablePublicKeys,
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Permissions: permissions,
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HomeDir: portableDir,
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Status: 1,
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},
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Filters: dataprovider.UserFilters{
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BaseUserFilters: sdk.BaseUserFilters{
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FilePatterns: parsePatternsFilesFilters(),
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StartDirectory: portableStartDir,
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},
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},
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FsConfig: vfs.Filesystem{
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Provider: sdk.GetProviderByName(portableFsProvider),
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S3Config: vfs.S3FsConfig{
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BaseS3FsConfig: sdk.BaseS3FsConfig{
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Bucket: portableS3Bucket,
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Region: portableS3Region,
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AccessKey: portableS3AccessKey,
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RoleARN: portableS3RoleARN,
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Endpoint: portableS3Endpoint,
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StorageClass: portableS3StorageClass,
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ACL: portableS3ACL,
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KeyPrefix: portableS3KeyPrefix,
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UploadPartSize: int64(portableS3ULPartSize),
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UploadConcurrency: portableS3ULConcurrency,
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ForcePathStyle: portableS3ForcePathStyle,
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},
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AccessSecret: kms.NewPlainSecret(portableS3AccessSecret),
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},
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GCSConfig: vfs.GCSFsConfig{
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BaseGCSFsConfig: sdk.BaseGCSFsConfig{
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Bucket: portableGCSBucket,
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AutomaticCredentials: portableGCSAutoCredentials,
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StorageClass: portableGCSStorageClass,
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KeyPrefix: portableGCSKeyPrefix,
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},
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Credentials: kms.NewPlainSecret(portableGCSCredentials),
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},
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AzBlobConfig: vfs.AzBlobFsConfig{
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BaseAzBlobFsConfig: sdk.BaseAzBlobFsConfig{
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Container: portableAzContainer,
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AccountName: portableAzAccountName,
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Endpoint: portableAzEndpoint,
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AccessTier: portableAzAccessTier,
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KeyPrefix: portableAzKeyPrefix,
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UseEmulator: portableAzUseEmulator,
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UploadPartSize: int64(portableAzULPartSize),
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UploadConcurrency: portableAzULConcurrency,
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DownloadPartSize: int64(portableAzDLPartSize),
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DownloadConcurrency: portableAzDLConcurrency,
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},
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AccountKey: kms.NewPlainSecret(portableAzAccountKey),
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SASURL: kms.NewPlainSecret(portableAzSASURL),
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},
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CryptConfig: vfs.CryptFsConfig{
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Passphrase: kms.NewPlainSecret(portableCryptPassphrase),
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},
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SFTPConfig: vfs.SFTPFsConfig{
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BaseSFTPFsConfig: sdk.BaseSFTPFsConfig{
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Endpoint: portableSFTPEndpoint,
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Username: portableSFTPUsername,
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Fingerprints: portableSFTPFingerprints,
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Prefix: portableSFTPPrefix,
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DisableCouncurrentReads: portableSFTPDisableConcurrentReads,
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BufferSize: portableSFTPDBufferSize,
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},
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Password: kms.NewPlainSecret(portableSFTPPassword),
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PrivateKey: kms.NewPlainSecret(portableSFTPPrivateKey),
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},
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},
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},
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}
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err := service.StartPortableMode(portableSFTPDPort, portableFTPDPort, portableWebDAVPort, portableSSHCommands,
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portableFTPSCert, portableFTPSKey, portableWebDAVCert,
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portableWebDAVKey)
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if err == nil {
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service.Wait()
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if service.Error == nil {
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os.Exit(0)
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}
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}
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os.Exit(1)
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},
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}
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)
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func init() {
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version.AddFeature("+portable")
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portableCmd.Flags().StringVarP(&directoryToServe, "directory", "d", ".", `Path to the directory to serve.
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This can be an absolute path or a path
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relative to the current directory
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`)
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portableCmd.Flags().StringVar(&portableStartDir, "start-directory", "/", `Alternate start directory.
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This is a virtual path not a filesystem
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path`)
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portableCmd.Flags().IntVarP(&portableSFTPDPort, "sftpd-port", "s", 0, `0 means a random unprivileged port,
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< 0 disabled`)
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portableCmd.Flags().IntVar(&portableFTPDPort, "ftpd-port", -1, `0 means a random unprivileged port,
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< 0 disabled`)
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portableCmd.Flags().IntVar(&portableWebDAVPort, "webdav-port", -1, `0 means a random unprivileged port,
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< 0 disabled`)
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portableCmd.Flags().StringSliceVarP(&portableSSHCommands, "ssh-commands", "c", sftpd.GetDefaultSSHCommands(),
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`SSH commands to enable.
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"*" means any supported SSH command
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including scp
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`)
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portableCmd.Flags().StringVarP(&portableUsername, "username", "u", "", `Leave empty to use an auto generated
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value`)
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portableCmd.Flags().StringVarP(&portablePassword, "password", "p", "", `Leave empty to use an auto generated
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value`)
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portableCmd.Flags().StringVar(&portablePasswordFile, "password-file", "", `Read the password from the specified
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file path. Leave empty to use an auto
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generated value`)
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portableCmd.Flags().StringVarP(&portableLogFile, logFilePathFlag, "l", "", "Leave empty to disable logging")
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portableCmd.Flags().StringVar(&portableLogLevel, logLevelFlag, defaultLogLevel, `Set the log level.
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Supported values:
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debug, info, warn, error.
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`)
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portableCmd.Flags().BoolVar(&portableLogUTCTime, logUTCTimeFlag, false, "Use UTC time for logging")
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portableCmd.Flags().StringSliceVarP(&portablePublicKeys, "public-key", "k", []string{}, "")
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portableCmd.Flags().StringSliceVarP(&portablePermissions, "permissions", "g", []string{"list", "download"},
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`User's permissions. "*" means any
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permission`)
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portableCmd.Flags().StringArrayVar(&portableAllowedPatterns, "allowed-patterns", []string{},
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`Allowed file patterns case insensitive.
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The format is:
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/dir::pattern1,pattern2.
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For example: "/somedir::*.jpg,a*b?.png"`)
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portableCmd.Flags().StringArrayVar(&portableDeniedPatterns, "denied-patterns", []string{},
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`Denied file patterns case insensitive.
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The format is:
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/dir::pattern1,pattern2.
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For example: "/somedir::*.jpg,a*b?.png"`)
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portableCmd.Flags().StringVarP(&portableFsProvider, "fs-provider", "f", "osfs", `osfs => local filesystem (legacy value: 0)
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s3fs => AWS S3 compatible (legacy: 1)
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gcsfs => Google Cloud Storage (legacy: 2)
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azblobfs => Azure Blob Storage (legacy: 3)
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cryptfs => Encrypted local filesystem (legacy: 4)
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sftpfs => SFTP (legacy: 5)`)
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portableCmd.Flags().StringVar(&portableS3Bucket, "s3-bucket", "", "")
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portableCmd.Flags().StringVar(&portableS3Region, "s3-region", "", "")
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portableCmd.Flags().StringVar(&portableS3AccessKey, "s3-access-key", "", "")
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portableCmd.Flags().StringVar(&portableS3AccessSecret, "s3-access-secret", "", "")
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portableCmd.Flags().StringVar(&portableS3RoleARN, "s3-role-arn", "", "")
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portableCmd.Flags().StringVar(&portableS3Endpoint, "s3-endpoint", "", "")
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portableCmd.Flags().StringVar(&portableS3StorageClass, "s3-storage-class", "", "")
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portableCmd.Flags().StringVar(&portableS3ACL, "s3-acl", "", "")
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portableCmd.Flags().StringVar(&portableS3KeyPrefix, "s3-key-prefix", "", `Allows to restrict access to the
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virtual folder identified by this
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prefix and its contents`)
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portableCmd.Flags().IntVar(&portableS3ULPartSize, "s3-upload-part-size", 5, `The buffer size for multipart uploads
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(MB)`)
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portableCmd.Flags().IntVar(&portableS3ULConcurrency, "s3-upload-concurrency", 2, `How many parts are uploaded in
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parallel`)
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portableCmd.Flags().BoolVar(&portableS3ForcePathStyle, "s3-force-path-style", false, `Force path style bucket URL`)
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portableCmd.Flags().StringVar(&portableGCSBucket, "gcs-bucket", "", "")
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portableCmd.Flags().StringVar(&portableGCSStorageClass, "gcs-storage-class", "", "")
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portableCmd.Flags().StringVar(&portableGCSKeyPrefix, "gcs-key-prefix", "", `Allows to restrict access to the
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virtual folder identified by this
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prefix and its contents`)
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portableCmd.Flags().StringVar(&portableGCSCredentialsFile, "gcs-credentials-file", "", `Google Cloud Storage JSON credentials
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file`)
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portableCmd.Flags().IntVar(&portableGCSAutoCredentials, "gcs-automatic-credentials", 1, `0 means explicit credentials using
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a JSON credentials file, 1 automatic
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`)
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portableCmd.Flags().StringVar(&portableFTPSCert, "ftpd-cert", "", "Path to the certificate file for FTPS")
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portableCmd.Flags().StringVar(&portableFTPSKey, "ftpd-key", "", "Path to the key file for FTPS")
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portableCmd.Flags().StringVar(&portableWebDAVCert, "webdav-cert", "", `Path to the certificate file for WebDAV
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over HTTPS`)
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portableCmd.Flags().StringVar(&portableWebDAVKey, "webdav-key", "", `Path to the key file for WebDAV over
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HTTPS`)
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portableCmd.Flags().StringVar(&portableAzContainer, "az-container", "", "")
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portableCmd.Flags().StringVar(&portableAzAccountName, "az-account-name", "", "")
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portableCmd.Flags().StringVar(&portableAzAccountKey, "az-account-key", "", "")
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portableCmd.Flags().StringVar(&portableAzSASURL, "az-sas-url", "", `Shared access signature URL`)
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portableCmd.Flags().StringVar(&portableAzEndpoint, "az-endpoint", "", `Leave empty to use the default:
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"blob.core.windows.net"`)
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portableCmd.Flags().StringVar(&portableAzAccessTier, "az-access-tier", "", `Leave empty to use the default
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container setting`)
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portableCmd.Flags().StringVar(&portableAzKeyPrefix, "az-key-prefix", "", `Allows to restrict access to the
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virtual folder identified by this
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prefix and its contents`)
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portableCmd.Flags().IntVar(&portableAzULPartSize, "az-upload-part-size", 5, `The buffer size for multipart uploads
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(MB)`)
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portableCmd.Flags().IntVar(&portableAzULConcurrency, "az-upload-concurrency", 5, `How many parts are uploaded in
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parallel`)
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portableCmd.Flags().IntVar(&portableAzDLPartSize, "az-download-part-size", 5, `The buffer size for multipart downloads
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(MB)`)
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portableCmd.Flags().IntVar(&portableAzDLConcurrency, "az-download-concurrency", 5, `How many parts are downloaded in
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parallel`)
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portableCmd.Flags().BoolVar(&portableAzUseEmulator, "az-use-emulator", false, "")
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portableCmd.Flags().StringVar(&portableCryptPassphrase, "crypto-passphrase", "", `Passphrase for encryption/decryption`)
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portableCmd.Flags().StringVar(&portableSFTPEndpoint, "sftp-endpoint", "", `SFTP endpoint as host:port for SFTP
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provider`)
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portableCmd.Flags().StringVar(&portableSFTPUsername, "sftp-username", "", `SFTP user for SFTP provider`)
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portableCmd.Flags().StringVar(&portableSFTPPassword, "sftp-password", "", `SFTP password for SFTP provider`)
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portableCmd.Flags().StringVar(&portableSFTPPrivateKeyPath, "sftp-key-path", "", `SFTP private key path for SFTP provider`)
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portableCmd.Flags().StringSliceVar(&portableSFTPFingerprints, "sftp-fingerprints", []string{}, `SFTP fingerprints to verify remote host
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key for SFTP provider`)
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portableCmd.Flags().StringVar(&portableSFTPPrefix, "sftp-prefix", "", `SFTP prefix allows restrict all
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operations to a given path within the
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remote SFTP server`)
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portableCmd.Flags().BoolVar(&portableSFTPDisableConcurrentReads, "sftp-disable-concurrent-reads", false, `Concurrent reads are safe to use and
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disabling them will degrade performance.
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Disable for read once servers`)
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portableCmd.Flags().Int64Var(&portableSFTPDBufferSize, "sftp-buffer-size", 0, `The size of the buffer (in MB) to use
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for transfers. By enabling buffering,
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the reads and writes, from/to the
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remote SFTP server, are split in
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multiple concurrent requests and this
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allows data to be transferred at a
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faster rate, over high latency networks,
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by overlapping round-trip times`)
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portableCmd.Flags().IntVar(&graceTime, graceTimeFlag, 0,
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`This grace time defines the number of
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seconds allowed for existing transfers
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to get completed before shutting down.
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A graceful shutdown is triggered by an
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interrupt signal.
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`)
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rootCmd.AddCommand(portableCmd)
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}
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func parsePatternsFilesFilters() []sdk.PatternsFilter {
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var patterns []sdk.PatternsFilter
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for _, val := range portableAllowedPatterns {
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p, exts := getPatternsFilterValues(strings.TrimSpace(val))
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if p != "" {
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patterns = append(patterns, sdk.PatternsFilter{
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Path: path.Clean(p),
|
|
AllowedPatterns: exts,
|
|
DeniedPatterns: []string{},
|
|
})
|
|
}
|
|
}
|
|
for _, val := range portableDeniedPatterns {
|
|
p, exts := getPatternsFilterValues(strings.TrimSpace(val))
|
|
if p != "" {
|
|
found := false
|
|
for index, e := range patterns {
|
|
if path.Clean(e.Path) == path.Clean(p) {
|
|
patterns[index].DeniedPatterns = append(patterns[index].DeniedPatterns, exts...)
|
|
found = true
|
|
break
|
|
}
|
|
}
|
|
if !found {
|
|
patterns = append(patterns, sdk.PatternsFilter{
|
|
Path: path.Clean(p),
|
|
AllowedPatterns: []string{},
|
|
DeniedPatterns: exts,
|
|
})
|
|
}
|
|
}
|
|
}
|
|
return patterns
|
|
}
|
|
|
|
func getPatternsFilterValues(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 cleanedExt != "" {
|
|
exts = append(exts, cleanedExt)
|
|
}
|
|
}
|
|
if dir != "" && len(exts) > 0 {
|
|
return dir, exts
|
|
}
|
|
}
|
|
}
|
|
return "", nil
|
|
}
|
|
|
|
func getFileContents(name string) (string, error) {
|
|
fi, err := os.Stat(name)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
if fi.Size() > 1048576 {
|
|
return "", fmt.Errorf("%q is too big %v/1048576 bytes", name, fi.Size())
|
|
}
|
|
contents, err := os.ReadFile(name)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
return string(contents), nil
|
|
}
|