mirror of
https://github.com/drakkan/sftpgo.git
synced 2024-11-25 09:00:27 +00:00
139 lines
4.7 KiB
Go
139 lines
4.7 KiB
Go
// Copyright (C) 2019 Nicola Murino
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published
|
|
// by the Free Software Foundation, version 3.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
// Package sftpd implements the SSH File Transfer Protocol as described in https://tools.ietf.org/html/draft-ietf-secsh-filexfer-02.
|
|
// It uses pkg/sftp library:
|
|
// https://github.com/pkg/sftp
|
|
package sftpd
|
|
|
|
import (
|
|
"strings"
|
|
"time"
|
|
|
|
"golang.org/x/crypto/ssh"
|
|
)
|
|
|
|
const (
|
|
logSender = "sftpd"
|
|
handshakeTimeout = 2 * time.Minute
|
|
)
|
|
|
|
var (
|
|
supportedSSHCommands = []string{"scp", "md5sum", "sha1sum", "sha256sum", "sha384sum", "sha512sum", "cd", "pwd",
|
|
"git-receive-pack", "git-upload-pack", "git-upload-archive", "rsync", "sftpgo-copy", "sftpgo-remove"}
|
|
defaultSSHCommands = []string{"md5sum", "sha1sum", "sha256sum", "cd", "pwd", "scp"}
|
|
sshHashCommands = []string{"md5sum", "sha1sum", "sha256sum", "sha384sum", "sha512sum"}
|
|
systemCommands = []string{"git-receive-pack", "git-upload-pack", "git-upload-archive", "rsync"}
|
|
serviceStatus ServiceStatus
|
|
certKeyAlgoNames = map[string]string{
|
|
ssh.CertAlgoRSAv01: ssh.KeyAlgoRSA,
|
|
ssh.CertAlgoRSASHA256v01: ssh.KeyAlgoRSASHA256,
|
|
ssh.CertAlgoRSASHA512v01: ssh.KeyAlgoRSASHA512,
|
|
ssh.InsecureCertAlgoDSAv01: ssh.InsecureKeyAlgoDSA,
|
|
ssh.CertAlgoECDSA256v01: ssh.KeyAlgoECDSA256,
|
|
ssh.CertAlgoECDSA384v01: ssh.KeyAlgoECDSA384,
|
|
ssh.CertAlgoECDSA521v01: ssh.KeyAlgoECDSA521,
|
|
ssh.CertAlgoSKECDSA256v01: ssh.KeyAlgoSKECDSA256,
|
|
ssh.CertAlgoED25519v01: ssh.KeyAlgoED25519,
|
|
ssh.CertAlgoSKED25519v01: ssh.KeyAlgoSKED25519,
|
|
}
|
|
)
|
|
|
|
type sshSubsystemExitStatus struct {
|
|
Status uint32
|
|
}
|
|
|
|
type sshSubsystemExecMsg struct {
|
|
Command string
|
|
}
|
|
|
|
type hostCertificate struct {
|
|
Certificate *ssh.Certificate
|
|
Path string
|
|
}
|
|
|
|
// HostKey defines the details for a used host key
|
|
type HostKey struct {
|
|
Path string `json:"path"`
|
|
Fingerprint string `json:"fingerprint"`
|
|
Algorithms []string `json:"algorithms"`
|
|
}
|
|
|
|
// GetAlgosAsString returns the host key algorithms as comma separated string
|
|
func (h *HostKey) GetAlgosAsString() string {
|
|
return strings.Join(h.Algorithms, ", ")
|
|
}
|
|
|
|
// ServiceStatus defines the service status
|
|
type ServiceStatus struct {
|
|
IsActive bool `json:"is_active"`
|
|
Bindings []Binding `json:"bindings"`
|
|
SSHCommands []string `json:"ssh_commands"`
|
|
HostKeys []HostKey `json:"host_keys"`
|
|
Authentications []string `json:"authentications"`
|
|
MACs []string `json:"macs"`
|
|
KexAlgorithms []string `json:"kex_algorithms"`
|
|
Ciphers []string `json:"ciphers"`
|
|
PublicKeyAlgorithms []string `json:"public_key_algorithms"`
|
|
}
|
|
|
|
// GetSSHCommandsAsString returns enabled SSH commands as comma separated string
|
|
func (s *ServiceStatus) GetSSHCommandsAsString() string {
|
|
return strings.Join(s.SSHCommands, ", ")
|
|
}
|
|
|
|
// GetSupportedAuthsAsString returns the supported authentications as comma separated string
|
|
func (s *ServiceStatus) GetSupportedAuthsAsString() string {
|
|
return strings.Join(s.Authentications, ", ")
|
|
}
|
|
|
|
// GetMACsAsString returns the enabled MAC algorithms as comma separated string
|
|
func (s *ServiceStatus) GetMACsAsString() string {
|
|
return strings.Join(s.MACs, ", ")
|
|
}
|
|
|
|
// GetKEXsAsString returns the enabled KEX algorithms as comma separated string
|
|
func (s *ServiceStatus) GetKEXsAsString() string {
|
|
return strings.Join(s.KexAlgorithms, ", ")
|
|
}
|
|
|
|
// GetCiphersAsString returns the enabled ciphers as comma separated string
|
|
func (s *ServiceStatus) GetCiphersAsString() string {
|
|
return strings.Join(s.Ciphers, ", ")
|
|
}
|
|
|
|
// GetPublicKeysAlgosAsString returns enabled public key authentication
|
|
// algorithms as comma separated string
|
|
func (s *ServiceStatus) GetPublicKeysAlgosAsString() string {
|
|
return strings.Join(s.PublicKeyAlgorithms, ", ")
|
|
}
|
|
|
|
// GetStatus returns the server status
|
|
func GetStatus() ServiceStatus {
|
|
return serviceStatus
|
|
}
|
|
|
|
// GetDefaultSSHCommands returns the SSH commands enabled as default
|
|
func GetDefaultSSHCommands() []string {
|
|
result := make([]string, len(defaultSSHCommands))
|
|
copy(result, defaultSSHCommands)
|
|
return result
|
|
}
|
|
|
|
// GetSupportedSSHCommands returns the supported SSH commands
|
|
func GetSupportedSSHCommands() []string {
|
|
result := make([]string, len(supportedSSHCommands))
|
|
copy(result, supportedSSHCommands)
|
|
return result
|
|
}
|