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add support for serving Google Cloud Storage over SFTP/SCP

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Each user can be mapped with a Google Cloud Storage bucket or a bucket
virtual folder
This commit is contained in:
Nicola Murino
2020-01-31 19:04:00 +01:00
parent 45a13f5f4e
commit 3491717c26
33 changed files with 1632 additions and 165 deletions
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30
dataprovider/user.go
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@@ -55,9 +55,10 @@ type UserFilters struct {
// Filesystem defines cloud storage filesystem details
type Filesystem struct {
// 0 local filesystem, 1 Amazon S3 compatible
Provider int `json:"provider"`
S3Config vfs.S3FsConfig `json:"s3config,omitempty"`
// 0 local filesystem, 1 Amazon S3 compatible, 2 Google Cloud Storage
Provider int `json:"provider"`
S3Config vfs.S3FsConfig `json:"s3config,omitempty"`
GCSConfig vfs.GCSFsConfig `json:"gcsconfig,omitempty"`
}
// User defines an SFTP user
@@ -73,7 +74,7 @@ type User struct {
ExpirationDate int64 `json:"expiration_date"`
// Password used for password authentication.
// For users created using SFTPGo REST API the password is be stored using argon2id hashing algo.
// Checking passwords stored with bcrypt, pbkdf2 and sha512crypt is supported too.
// Checking passwords stored with bcrypt, pbkdf2, md5crypt and sha512crypt is supported too.
Password string `json:"password,omitempty"`
// PublicKeys used for public key authentication. At least one between password and a public key is mandatory
PublicKeys []string `json:"public_keys,omitempty"`
@@ -113,6 +114,10 @@ type User struct {
func (u *User) GetFilesystem(connectionID string) (vfs.Fs, error) {
if u.FsConfig.Provider == 1 {
return vfs.NewS3Fs(connectionID, u.GetHomeDir(), u.FsConfig.S3Config)
} else if u.FsConfig.Provider == 2 {
config := u.FsConfig.GCSConfig
config.CredentialFile = u.getGCSCredentialsFilePath()
return vfs.NewGCSFs(connectionID, u.GetHomeDir(), config)
}
return vfs.NewOsFs(connectionID, u.GetHomeDir()), nil
}
@@ -321,7 +326,8 @@ func (u *User) GetBandwidthAsString() string {
}
// GetInfoString returns user's info as string.
// Number of public keys, max sessions, uid and gid are returned
// Storage provider, number of public keys, max sessions, uid,
// gid, denied and allowed IP/Mask are returned
func (u *User) GetInfoString() string {
var result string
if u.LastLogin > 0 {
@@ -329,7 +335,9 @@ func (u *User) GetInfoString() string {
result += fmt.Sprintf("Last login: %v ", t.Format("2006-01-02 15:04:05")) // YYYY-MM-DD HH:MM:SS
}
if u.FsConfig.Provider == 1 {
result += fmt.Sprintf("Storage: S3")
result += fmt.Sprintf("Storage: S3 ")
} else if u.FsConfig.Provider == 2 {
result += fmt.Sprintf("Storage: GCS ")
}
if len(u.PublicKeys) > 0 {
result += fmt.Sprintf("Public keys: %v ", len(u.PublicKeys))
@@ -410,6 +418,12 @@ func (u *User) getACopy() User {
StorageClass: u.FsConfig.S3Config.StorageClass,
KeyPrefix: u.FsConfig.S3Config.KeyPrefix,
},
GCSConfig: vfs.GCSFsConfig{
Bucket: u.FsConfig.GCSConfig.Bucket,
CredentialFile: u.FsConfig.GCSConfig.CredentialFile,
StorageClass: u.FsConfig.GCSConfig.StorageClass,
KeyPrefix: u.FsConfig.GCSConfig.KeyPrefix,
},
}
return User{
@@ -458,3 +472,7 @@ func (u *User) getNotificationFieldsAsEnvVars(action string) []string {
fmt.Sprintf("SFTPGO_USER_UID=%v", u.UID),
fmt.Sprintf("SFTPGO_USER_GID=%v", u.GID)}
}
func (u *User) getGCSCredentialsFilePath() string {
return filepath.Join(credentialsDirPath, fmt.Sprintf("%v_gcs_credentials.json", u.Username))
}