mirror of
https://github.com/drakkan/sftpgo.git
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a08dd85efd
host_key defines the private host keys as plain list of strings. Remove the other deprecated config params from the default config too. Signed-off-by: Nicola Murino <nicola.murino@gmail.com>
254 lines
9.6 KiB
Go
254 lines
9.6 KiB
Go
// Package config manages the configuration.
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// Configuration is loaded from sftpgo.conf file.
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// If sftpgo.conf is not found or cannot be readed or decoded as json the default configuration is used.
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// The default configuration an be found inside the source tree:
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// https://github.com/drakkan/sftpgo/blob/master/sftpgo.conf
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package config
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import (
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"fmt"
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"strings"
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"github.com/spf13/viper"
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"github.com/drakkan/sftpgo/dataprovider"
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"github.com/drakkan/sftpgo/httpclient"
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"github.com/drakkan/sftpgo/httpd"
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"github.com/drakkan/sftpgo/logger"
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"github.com/drakkan/sftpgo/sftpd"
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"github.com/drakkan/sftpgo/utils"
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)
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const (
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logSender = "config"
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// DefaultConfigName defines the name for the default config file.
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// This is the file name without extension, we use viper and so we
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// support all the config files format supported by viper
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DefaultConfigName = "sftpgo"
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// ConfigEnvPrefix defines a prefix that ENVIRONMENT variables will use
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configEnvPrefix = "sftpgo"
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)
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var (
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globalConf globalConfig
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defaultBanner = fmt.Sprintf("SFTPGo_%v", utils.GetAppVersion().Version)
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)
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type globalConfig struct {
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SFTPD sftpd.Configuration `json:"sftpd" mapstructure:"sftpd"`
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ProviderConf dataprovider.Config `json:"data_provider" mapstructure:"data_provider"`
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HTTPDConfig httpd.Conf `json:"httpd" mapstructure:"httpd"`
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HTTPConfig httpclient.Config `json:"http" mapstructure:"http"`
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}
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func init() {
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// create a default configuration to use if no config file is provided
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globalConf = globalConfig{
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SFTPD: sftpd.Configuration{
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Banner: defaultBanner,
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BindPort: 2022,
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BindAddress: "",
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IdleTimeout: 15,
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MaxAuthTries: 0,
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Umask: "0022",
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UploadMode: 0,
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Actions: sftpd.Actions{
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ExecuteOn: []string{},
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Command: "",
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HTTPNotificationURL: "",
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},
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HostKeys: []string{},
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KexAlgorithms: []string{},
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Ciphers: []string{},
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MACs: []string{},
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TrustedUserCAKeys: []string{},
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LoginBannerFile: "",
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EnabledSSHCommands: sftpd.GetDefaultSSHCommands(),
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KeyboardInteractiveHook: "",
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ProxyProtocol: 0,
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ProxyAllowed: []string{},
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},
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ProviderConf: dataprovider.Config{
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Driver: "sqlite",
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Name: "sftpgo.db",
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Host: "",
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Port: 5432,
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Username: "",
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Password: "",
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ConnectionString: "",
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UsersTable: "users",
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ManageUsers: 1,
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SSLMode: 0,
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TrackQuota: 1,
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PoolSize: 0,
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UsersBaseDir: "",
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Actions: dataprovider.Actions{
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ExecuteOn: []string{},
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Command: "",
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HTTPNotificationURL: "",
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},
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ExternalAuthHook: "",
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ExternalAuthScope: 0,
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CredentialsPath: "credentials",
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PreLoginHook: "",
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},
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HTTPDConfig: httpd.Conf{
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BindPort: 8080,
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BindAddress: "127.0.0.1",
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TemplatesPath: "templates",
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StaticFilesPath: "static",
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BackupsPath: "backups",
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AuthUserFile: "",
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CertificateFile: "",
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CertificateKeyFile: "",
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},
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HTTPConfig: httpclient.Config{
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Timeout: 20,
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CACertificates: nil,
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SkipTLSVerify: false,
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},
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}
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viper.SetEnvPrefix(configEnvPrefix)
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replacer := strings.NewReplacer(".", "__")
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viper.SetEnvKeyReplacer(replacer)
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viper.SetConfigName(DefaultConfigName)
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viper.AutomaticEnv()
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viper.AllowEmptyEnv(true)
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}
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// GetSFTPDConfig returns the configuration for the SFTP server
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func GetSFTPDConfig() sftpd.Configuration {
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return globalConf.SFTPD
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}
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// SetSFTPDConfig sets the configuration for the SFTP server
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func SetSFTPDConfig(config sftpd.Configuration) {
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globalConf.SFTPD = config
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}
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// GetHTTPDConfig returns the configuration for the HTTP server
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func GetHTTPDConfig() httpd.Conf {
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return globalConf.HTTPDConfig
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}
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// SetHTTPDConfig sets the configuration for the HTTP server
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func SetHTTPDConfig(config httpd.Conf) {
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globalConf.HTTPDConfig = config
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}
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//GetProviderConf returns the configuration for the data provider
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func GetProviderConf() dataprovider.Config {
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return globalConf.ProviderConf
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}
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//SetProviderConf sets the configuration for the data provider
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func SetProviderConf(config dataprovider.Config) {
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globalConf.ProviderConf = config
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}
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// GetHTTPConfig returns the configuration for HTTP clients
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func GetHTTPConfig() httpclient.Config {
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return globalConf.HTTPConfig
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}
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func getRedactedGlobalConf() globalConfig {
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conf := globalConf
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conf.ProviderConf.Password = "[redacted]"
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return conf
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}
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// LoadConfig loads the configuration
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// configDir will be added to the configuration search paths.
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// The search path contains by default the current directory and on linux it contains
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// $HOME/.config/sftpgo and /etc/sftpgo too.
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// configName is the name of the configuration to search without extension
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func LoadConfig(configDir, configName string) error {
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var err error
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viper.AddConfigPath(configDir)
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setViperAdditionalConfigPaths()
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viper.AddConfigPath(".")
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viper.SetConfigName(configName)
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if err = viper.ReadInConfig(); err != nil {
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logger.Warn(logSender, "", "error loading configuration file: %v. Default configuration will be used: %+v",
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err, getRedactedGlobalConf())
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logger.WarnToConsole("error loading configuration file: %v. Default configuration will be used.", err)
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return err
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}
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err = viper.Unmarshal(&globalConf)
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if err != nil {
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logger.Warn(logSender, "", "error parsing configuration file: %v. Default configuration will be used: %+v",
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err, getRedactedGlobalConf())
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logger.WarnToConsole("error parsing configuration file: %v. Default configuration will be used.", err)
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return err
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}
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if strings.TrimSpace(globalConf.SFTPD.Banner) == "" {
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globalConf.SFTPD.Banner = defaultBanner
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}
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if len(globalConf.ProviderConf.UsersBaseDir) > 0 && !utils.IsFileInputValid(globalConf.ProviderConf.UsersBaseDir) {
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err = fmt.Errorf("invalid users base dir %#v will be ignored", globalConf.ProviderConf.UsersBaseDir)
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globalConf.ProviderConf.UsersBaseDir = ""
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logger.Warn(logSender, "", "Configuration error: %v", err)
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logger.WarnToConsole("Configuration error: %v", err)
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}
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if globalConf.SFTPD.UploadMode < 0 || globalConf.SFTPD.UploadMode > 2 {
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err = fmt.Errorf("invalid upload_mode 0, 1 and 2 are supported, configured: %v reset upload_mode to 0",
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globalConf.SFTPD.UploadMode)
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globalConf.SFTPD.UploadMode = 0
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logger.Warn(logSender, "", "Configuration error: %v", err)
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logger.WarnToConsole("Configuration error: %v", err)
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}
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if globalConf.SFTPD.ProxyProtocol < 0 || globalConf.SFTPD.ProxyProtocol > 2 {
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err = fmt.Errorf("invalid proxy_protocol 0, 1 and 2 are supported, configured: %v reset proxy_protocol to 0",
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globalConf.SFTPD.ProxyProtocol)
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globalConf.SFTPD.ProxyProtocol = 0
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logger.Warn(logSender, "", "Configuration error: %v", err)
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logger.WarnToConsole("Configuration error: %v", err)
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}
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if globalConf.ProviderConf.ExternalAuthScope < 0 || globalConf.ProviderConf.ExternalAuthScope > 7 {
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err = fmt.Errorf("invalid external_auth_scope: %v reset to 0", globalConf.ProviderConf.ExternalAuthScope)
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globalConf.ProviderConf.ExternalAuthScope = 0
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logger.Warn(logSender, "", "Configuration error: %v", err)
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logger.WarnToConsole("Configuration error: %v", err)
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}
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if len(globalConf.ProviderConf.CredentialsPath) == 0 {
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err = fmt.Errorf("invalid credentials path, reset to \"credentials\"")
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globalConf.ProviderConf.CredentialsPath = "credentials"
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logger.Warn(logSender, "", "Configuration error: %v", err)
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logger.WarnToConsole("Configuration error: %v", err)
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}
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checkHooksCompatibility()
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checkHostKeyCompatibility()
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logger.Debug(logSender, "", "config file used: '%#v', config loaded: %+v", viper.ConfigFileUsed(), getRedactedGlobalConf())
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return err
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}
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func checkHooksCompatibility() {
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// we copy deprecated fields to new ones to keep backward compatibility so lint is disabled
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if len(globalConf.ProviderConf.ExternalAuthProgram) > 0 && len(globalConf.ProviderConf.ExternalAuthHook) == 0 { //nolint:staticcheck
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logger.Warn(logSender, "", "external_auth_program is deprecated, please use external_auth_hook")
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logger.WarnToConsole("external_auth_program is deprecated, please use external_auth_hook")
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globalConf.ProviderConf.ExternalAuthHook = globalConf.ProviderConf.ExternalAuthProgram //nolint:staticcheck
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}
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if len(globalConf.ProviderConf.PreLoginProgram) > 0 && len(globalConf.ProviderConf.PreLoginHook) == 0 { //nolint:staticcheck
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logger.Warn(logSender, "", "pre_login_program is deprecated, please use pre_login_hook")
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logger.WarnToConsole("pre_login_program is deprecated, please use pre_login_hook")
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globalConf.ProviderConf.PreLoginHook = globalConf.ProviderConf.PreLoginProgram //nolint:staticcheck
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}
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if len(globalConf.SFTPD.KeyboardInteractiveProgram) > 0 && len(globalConf.SFTPD.KeyboardInteractiveHook) == 0 { //nolint:staticcheck
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logger.Warn(logSender, "", "keyboard_interactive_auth_program is deprecated, please use keyboard_interactive_auth_hook")
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logger.WarnToConsole("keyboard_interactive_auth_program is deprecated, please use keyboard_interactive_auth_hook")
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globalConf.SFTPD.KeyboardInteractiveHook = globalConf.SFTPD.KeyboardInteractiveProgram //nolint:staticcheck
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}
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}
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func checkHostKeyCompatibility() {
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// we copy deprecated fields to new ones to keep backward compatibility so lint is disabled
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if len(globalConf.SFTPD.Keys) > 0 && len(globalConf.SFTPD.HostKeys) == 0 { //nolint:staticcheck
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logger.Warn(logSender, "", "keys is deprecated, please use host_keys")
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logger.WarnToConsole("keys is deprecated, please use host_keys")
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for _, k := range globalConf.SFTPD.Keys { //nolint:staticcheck
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globalConf.SFTPD.HostKeys = append(globalConf.SFTPD.HostKeys, k.PrivateKey)
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}
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}
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}
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