sftpgo-mirror/vfs/folder.go
2021-12-16 18:18:36 +01:00

239 lines
8 KiB
Go

package vfs
import (
"fmt"
"path/filepath"
"strconv"
"strings"
"github.com/drakkan/sftpgo/v2/sdk"
"github.com/drakkan/sftpgo/v2/util"
)
// BaseVirtualFolder defines the path for the virtual folder and the used quota limits.
// The same folder can be shared among multiple users and each user can have different
// quota limits or a different virtual path.
type BaseVirtualFolder struct {
ID int64 `json:"id"`
Name string `json:"name"`
MappedPath string `json:"mapped_path,omitempty"`
Description string `json:"description,omitempty"`
UsedQuotaSize int64 `json:"used_quota_size"`
// Used quota as number of files
UsedQuotaFiles int `json:"used_quota_files"`
// Last quota update as unix timestamp in milliseconds
LastQuotaUpdate int64 `json:"last_quota_update"`
// list of usernames associated with this virtual folder
Users []string `json:"users,omitempty"`
// Filesystem configuration details
FsConfig Filesystem `json:"filesystem"`
}
// GetEncryptionAdditionalData returns the additional data to use for AEAD
func (v *BaseVirtualFolder) GetEncryptionAdditionalData() string {
return fmt.Sprintf("folder_%v", v.Name)
}
// GetGCSCredentialsFilePath returns the path for GCS credentials
func (v *BaseVirtualFolder) GetGCSCredentialsFilePath() string {
return filepath.Join(credentialsDirPath, "folders", fmt.Sprintf("%v_gcs_credentials.json", v.Name))
}
// GetACopy returns a copy
func (v *BaseVirtualFolder) GetACopy() BaseVirtualFolder {
users := make([]string, len(v.Users))
copy(users, v.Users)
return BaseVirtualFolder{
ID: v.ID,
Name: v.Name,
Description: v.Description,
MappedPath: v.MappedPath,
UsedQuotaSize: v.UsedQuotaSize,
UsedQuotaFiles: v.UsedQuotaFiles,
LastQuotaUpdate: v.LastQuotaUpdate,
Users: users,
FsConfig: v.FsConfig.GetACopy(),
}
}
// GetUsersAsString returns the list of users as comma separated string
func (v *BaseVirtualFolder) GetUsersAsString() string {
return strings.Join(v.Users, ",")
}
// GetQuotaSummary returns used quota and last update as string
func (v *BaseVirtualFolder) GetQuotaSummary() string {
var result string
result = "Files: " + strconv.Itoa(v.UsedQuotaFiles)
if v.UsedQuotaSize > 0 {
result += ". Size: " + util.ByteCountIEC(v.UsedQuotaSize)
}
if v.LastQuotaUpdate > 0 {
t := util.GetTimeFromMsecSinceEpoch(v.LastQuotaUpdate)
result += fmt.Sprintf(". Last update: %v ", t.Format("2006-01-02 15:04")) // YYYY-MM-DD HH:MM
}
return result
}
// GetStorageDescrition returns the storage description
func (v *BaseVirtualFolder) GetStorageDescrition() string {
switch v.FsConfig.Provider {
case sdk.LocalFilesystemProvider:
return fmt.Sprintf("Local: %v", v.MappedPath)
case sdk.S3FilesystemProvider:
return fmt.Sprintf("S3: %v", v.FsConfig.S3Config.Bucket)
case sdk.GCSFilesystemProvider:
return fmt.Sprintf("GCS: %v", v.FsConfig.GCSConfig.Bucket)
case sdk.AzureBlobFilesystemProvider:
return fmt.Sprintf("AzBlob: %v", v.FsConfig.AzBlobConfig.Container)
case sdk.CryptedFilesystemProvider:
return fmt.Sprintf("Encrypted: %v", v.MappedPath)
case sdk.SFTPFilesystemProvider:
return fmt.Sprintf("SFTP: %v", v.FsConfig.SFTPConfig.Endpoint)
default:
return ""
}
}
// IsLocalOrLocalCrypted returns true if the folder provider is local or local encrypted
func (v *BaseVirtualFolder) IsLocalOrLocalCrypted() bool {
return v.FsConfig.Provider == sdk.LocalFilesystemProvider || v.FsConfig.Provider == sdk.CryptedFilesystemProvider
}
// hideConfidentialData hides folder confidential data
func (v *BaseVirtualFolder) hideConfidentialData() {
switch v.FsConfig.Provider {
case sdk.S3FilesystemProvider:
v.FsConfig.S3Config.HideConfidentialData()
case sdk.GCSFilesystemProvider:
v.FsConfig.GCSConfig.HideConfidentialData()
case sdk.AzureBlobFilesystemProvider:
v.FsConfig.AzBlobConfig.HideConfidentialData()
case sdk.CryptedFilesystemProvider:
v.FsConfig.CryptConfig.HideConfidentialData()
case sdk.SFTPFilesystemProvider:
v.FsConfig.SFTPConfig.HideConfidentialData()
}
}
// PrepareForRendering prepares a folder for rendering.
// It hides confidential data and set to nil the empty secrets
// so they are not serialized
func (v *BaseVirtualFolder) PrepareForRendering() {
v.hideConfidentialData()
v.FsConfig.SetEmptySecretsIfNil()
}
// HasRedactedSecret returns true if the folder has a redacted secret
func (v *BaseVirtualFolder) HasRedactedSecret() bool {
switch v.FsConfig.Provider {
case sdk.S3FilesystemProvider:
if v.FsConfig.S3Config.AccessSecret.IsRedacted() {
return true
}
case sdk.GCSFilesystemProvider:
if v.FsConfig.GCSConfig.Credentials.IsRedacted() {
return true
}
case sdk.AzureBlobFilesystemProvider:
if v.FsConfig.AzBlobConfig.AccountKey.IsRedacted() {
return true
}
if v.FsConfig.AzBlobConfig.SASURL.IsRedacted() {
return true
}
case sdk.CryptedFilesystemProvider:
if v.FsConfig.CryptConfig.Passphrase.IsRedacted() {
return true
}
case sdk.SFTPFilesystemProvider:
if v.FsConfig.SFTPConfig.Password.IsRedacted() {
return true
}
if v.FsConfig.SFTPConfig.PrivateKey.IsRedacted() {
return true
}
}
return false
}
// VirtualFolder defines a mapping between an SFTPGo exposed virtual path and a
// filesystem path outside the user home directory.
// The specified paths must be absolute and the virtual path cannot be "/",
// it must be a sub directory. The parent directory for the specified virtual
// path must exist. SFTPGo will try to automatically create any missing
// parent directory for the configured virtual folders at user login.
type VirtualFolder struct {
BaseVirtualFolder
VirtualPath string `json:"virtual_path"`
// Maximum size allowed as bytes. 0 means unlimited, -1 included in user quota
QuotaSize int64 `json:"quota_size"`
// Maximum number of files allowed. 0 means unlimited, -1 included in user quota
QuotaFiles int `json:"quota_files"`
}
// GetFilesystem returns the filesystem for this folder
func (v *VirtualFolder) GetFilesystem(connectionID string, forbiddenSelfUsers []string) (Fs, error) {
switch v.FsConfig.Provider {
case sdk.S3FilesystemProvider:
return NewS3Fs(connectionID, v.MappedPath, v.VirtualPath, v.FsConfig.S3Config)
case sdk.GCSFilesystemProvider:
config := v.FsConfig.GCSConfig
config.CredentialFile = v.GetGCSCredentialsFilePath()
return NewGCSFs(connectionID, v.MappedPath, v.VirtualPath, config)
case sdk.AzureBlobFilesystemProvider:
return NewAzBlobFs(connectionID, v.MappedPath, v.VirtualPath, v.FsConfig.AzBlobConfig)
case sdk.CryptedFilesystemProvider:
return NewCryptFs(connectionID, v.MappedPath, v.VirtualPath, v.FsConfig.CryptConfig)
case sdk.SFTPFilesystemProvider:
return NewSFTPFs(connectionID, v.VirtualPath, v.MappedPath, forbiddenSelfUsers, v.FsConfig.SFTPConfig)
default:
return NewOsFs(connectionID, v.MappedPath, v.VirtualPath), nil
}
}
// CheckMetadataConsistency checks the consistency between the metadata stored
// in the configured metadata plugin and the filesystem
func (v *VirtualFolder) CheckMetadataConsistency() error {
fs, err := v.GetFilesystem("", nil)
if err != nil {
return err
}
defer fs.Close()
return fs.CheckMetadata()
}
// ScanQuota scans the folder and returns the number of files and their size
func (v *VirtualFolder) ScanQuota() (int, int64, error) {
fs, err := v.GetFilesystem("", nil)
if err != nil {
return 0, 0, err
}
defer fs.Close()
return fs.ScanRootDirContents()
}
// IsIncludedInUserQuota returns true if the virtual folder is included in user quota
func (v *VirtualFolder) IsIncludedInUserQuota() bool {
return v.QuotaFiles == -1 && v.QuotaSize == -1
}
// HasNoQuotaRestrictions returns true if no quota restrictions need to be applyed
func (v *VirtualFolder) HasNoQuotaRestrictions(checkFiles bool) bool {
if v.QuotaSize == 0 && (!checkFiles || v.QuotaFiles == 0) {
return true
}
return false
}
// GetACopy returns a copy
func (v *VirtualFolder) GetACopy() VirtualFolder {
return VirtualFolder{
BaseVirtualFolder: v.BaseVirtualFolder.GetACopy(),
VirtualPath: v.VirtualPath,
QuotaSize: v.QuotaSize,
QuotaFiles: v.QuotaFiles,
}
}