Files
gluetun/internal/configuration/settings/portforward.go
Quentin McGaw 7d824a5179 chore(settings): refactor settings processing (#756)
- Better settings tree structure logged using `qdm12/gotree`
- Read settings from environment variables, then files, then secret files
- Settings methods to default them, merge them and override them
- `DNS_PLAINTEXT_ADDRESS` default changed to `127.0.0.1` to use DoT. Warning added if set to something else.
- `HTTPPROXY_LISTENING_ADDRESS` instead of `HTTPPROXY_PORT` (with retro-compatibility)
2022-01-06 06:40:23 -05:00

90 lines
2.3 KiB
Go

package settings
import (
"fmt"
"path/filepath"
"strings"
"github.com/qdm12/gluetun/internal/configuration/settings/helpers"
"github.com/qdm12/gluetun/internal/constants"
"github.com/qdm12/gotree"
)
// PortForwarding contains settings for port forwarding.
type PortForwarding struct {
// Enabled is true if port forwarding should be activated.
// It cannot be nil for the internal state.
Enabled *bool
// Filepath is the port forwarding status file path
// to use. It can be the empty string to indicate not
// to write to a file. It cannot be nil for the
// internal state
Filepath *string
}
func (p PortForwarding) validate(vpnProvider string) (err error) {
if !*p.Enabled {
return nil
}
// Validate Enabled
validProviders := []string{constants.PrivateInternetAccess}
if !helpers.IsOneOf(vpnProvider, validProviders...) {
return fmt.Errorf("%w: for provider %s, it is only available for %s",
ErrPortForwardingEnabled, vpnProvider, strings.Join(validProviders, ", "))
}
// Validate Filepath
if *p.Filepath != "" { // optional
_, err := filepath.Abs(*p.Filepath)
if err != nil {
return fmt.Errorf("%w: %s", ErrPortForwardingFilepathNotValid, err)
}
}
return nil
}
func (p *PortForwarding) copy() (copied PortForwarding) {
return PortForwarding{
Enabled: helpers.CopyBoolPtr(p.Enabled),
Filepath: helpers.CopyStringPtr(p.Filepath),
}
}
func (p *PortForwarding) mergeWith(other PortForwarding) {
p.Enabled = helpers.MergeWithBool(p.Enabled, other.Enabled)
p.Filepath = helpers.MergeWithStringPtr(p.Filepath, other.Filepath)
}
func (p *PortForwarding) overrideWith(other PortForwarding) {
p.Enabled = helpers.OverrideWithBool(p.Enabled, other.Enabled)
p.Filepath = helpers.OverrideWithStringPtr(p.Filepath, other.Filepath)
}
func (p *PortForwarding) setDefaults() {
p.Enabled = helpers.DefaultBool(p.Enabled, false)
p.Filepath = helpers.DefaultStringPtr(p.Filepath, "/tmp/gluetun/forwarded_port")
}
func (p PortForwarding) String() string {
return p.toLinesNode().String()
}
func (p PortForwarding) toLinesNode() (node *gotree.Node) {
if !*p.Enabled {
return nil
}
node = gotree.New("Automatic port forwarding settings:")
node.Appendf("Enabled: yes")
filepath := *p.Filepath
if filepath == "" {
filepath = "[not set]"
}
node.Appendf("Forwarded port file path: %s", filepath)
return node
}