feat: ftp server support (#7634 close #1898)

* feat: ftp server support

* fix(ftp): incorrect mode for dirs in LIST returns

internal/bootstrap/data/setting.go

@@ -185,6 +185,16 @@ func InitialSettings() []model.SettingItem {
 		{Key: conf.S3AccessKeyId, Value: "", Type: conf.TypeString, Group: model.S3, Flag: model.PRIVATE},
 		{Key: conf.S3SecretAccessKey, Value: "", Type: conf.TypeString, Group: model.S3, Flag: model.PRIVATE},
 		{Key: conf.S3Buckets, Value: "[]", Type: conf.TypeString, Group: model.S3, Flag: model.PRIVATE},
+
+		//ftp settings
+		{Key: conf.FTPPublicHost, Value: "127.0.0.1", Type: conf.TypeString, Group: model.FTP, Flag: model.PRIVATE},
+		{Key: conf.FTPPasvPortMap, Value: "", Type: conf.TypeText, Group: model.FTP, Flag: model.PRIVATE},
+		{Key: conf.FTPProxyUserAgent, Value: "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) " +
+			"Chrome/87.0.4280.88 Safari/537.36", Type: conf.TypeString, Group: model.FTP, Flag: model.PRIVATE},
+		{Key: conf.FTPMandatoryTLS, Value: "false", Type: conf.TypeBool, Group: model.FTP, Flag: model.PRIVATE},
+		{Key: conf.FTPImplicitTLS, Value: "false", Type: conf.TypeBool, Group: model.FTP, Flag: model.PRIVATE},
+		{Key: conf.FTPTLSPrivateKeyPath, Value: "", Type: conf.TypeString, Group: model.FTP, Flag: model.PRIVATE},
+		{Key: conf.FTPTLSPublicCertPath, Value: "", Type: conf.TypeString, Group: model.FTP, Flag: model.PRIVATE},
 	}
 	initialSettingItems = append(initialSettingItems, tool.Tools.Items()...)
 	if flags.Dev {

internal/conf/config.go

@@ -71,6 +71,19 @@ type S3 struct {
 	SSL    bool `json:"ssl" env:"SSL"`
 }
 
+type FTP struct {
+	Enable                  bool   `json:"enable" env:"ENABLE"`
+	Listen                  string `json:"listen" env:"LISTEN"`
+	FindPasvPortAttempts    int    `json:"find_pasv_port_attempts" env:"FIND_PASV_PORT_ATTEMPTS"`
+	ActiveTransferPortNon20 bool   `json:"active_transfer_port_non_20" env:"ACTIVE_TRANSFER_PORT_NON_20"`
+	IdleTimeout             int    `json:"idle_timeout" env:"IDLE_TIMEOUT"`
+	ConnectionTimeout       int    `json:"connection_timeout" env:"CONNECTION_TIMEOUT"`
+	DisableActiveMode       bool   `json:"disable_active_mode" env:"DISABLE_ACTIVE_MODE"`
+	DefaultTransferBinary   bool   `json:"default_transfer_binary" env:"DEFAULT_TRANSFER_BINARY"`
+	EnableActiveConnIPCheck bool   `json:"enable_active_conn_ip_check" env:"ENABLE_ACTIVE_CONN_IP_CHECK"`
+	EnablePasvConnIPCheck   bool   `json:"enable_pasv_conn_ip_check" env:"ENABLE_PASV_CONN_IP_CHECK"`
+}
+
 type Config struct {
 	Force                 bool        `json:"force" env:"FORCE"`
 	SiteURL               string      `json:"site_url" env:"SITE_URL"`
@@ -90,6 +103,7 @@ type Config struct {
 	Tasks                 TasksConfig `json:"tasks" envPrefix:"TASKS_"`
 	Cors                  Cors        `json:"cors" envPrefix:"CORS_"`
 	S3                    S3          `json:"s3" envPrefix:"S3_"`
+	FTP                   FTP         `json:"ftp" envPrefix:"FTP_"`
 }
 
 func DefaultConfig() *Config {
@@ -159,5 +173,17 @@ func DefaultConfig() *Config {
 			Port:   5246,
 			SSL:    false,
 		},
+		FTP: FTP{
+			Enable:                  true,
+			Listen:                  ":5221",
+			FindPasvPortAttempts:    50,
+			ActiveTransferPortNon20: false,
+			IdleTimeout:             900,
+			ConnectionTimeout:       30,
+			DisableActiveMode:       false,
+			DefaultTransferBinary:   false,
+			EnableActiveConnIPCheck: true,
+			EnablePasvConnIPCheck:   true,
+		},
 	}
 }

internal/conf/const.go

@@ -97,6 +97,15 @@ const (
 	// qbittorrent
 	QbittorrentUrl      = "qbittorrent_url"
 	QbittorrentSeedtime = "qbittorrent_seedtime"
+
+	// ftp
+	FTPPublicHost        = "ftp_public_host"
+	FTPPasvPortMap       = "ftp_pasv_port_map"
+	FTPProxyUserAgent    = "ftp_proxy_user_agent"
+	FTPMandatoryTLS      = "ftp_mandatory_tls"
+	FTPImplicitTLS       = "ftp_implicit_tls"
+	FTPTLSPrivateKeyPath = "ftp_tls_private_key_path"
+	FTPTLSPublicCertPath = "ftp_tls_public_cert_path"
 )
 
 const (

internal/model/setting.go

@@ -11,6 +11,7 @@ const (
 	SSO
 	LDAP
 	S3
+	FTP
 )
 
 const (

internal/model/user.go

@@ -117,6 +117,14 @@ func (u *User) CanWebdavManage() bool {
 	return u.IsAdmin() || (u.Permission>>9)&1 == 1
 }
 
+func (u *User) CanFTPAccess() bool {
+	return (u.Permission>>10)&1 == 1
+}
+
+func (u *User) CanFTPManage() bool {
+	return (u.Permission>>11)&1 == 1
+}
+
 func (u *User) JoinPath(reqPath string) (string, error) {
 	return utils.JoinBasePath(u.BasePath, reqPath)
 }