sing-box/common/settings/proxy_darwin.go
2023-09-12 13:26:21 +08:00

124 lines
3.4 KiB
Go

package settings
import (
"context"
"net/netip"
"strconv"
"strings"
"github.com/sagernet/sing-box/adapter"
"github.com/sagernet/sing-tun"
E "github.com/sagernet/sing/common/exceptions"
M "github.com/sagernet/sing/common/metadata"
"github.com/sagernet/sing/common/shell"
"github.com/sagernet/sing/common/x/list"
)
type DarwinSystemProxy struct {
monitor tun.DefaultInterfaceMonitor
interfaceName string
element *list.Element[tun.DefaultInterfaceUpdateCallback]
serverAddr M.Socksaddr
supportSOCKS bool
isEnabled bool
}
func NewSystemProxy(ctx context.Context, serverAddr M.Socksaddr, supportSOCKS bool) (*DarwinSystemProxy, error) {
interfaceMonitor := adapter.RouterFromContext(ctx).InterfaceMonitor()
if interfaceMonitor == nil {
return nil, E.New("missing interface monitor")
}
proxy := &DarwinSystemProxy{
monitor: interfaceMonitor,
serverAddr: serverAddr,
supportSOCKS: supportSOCKS,
}
proxy.element = interfaceMonitor.RegisterCallback(proxy.update)
return proxy, nil
}
func (p *DarwinSystemProxy) IsEnabled() bool {
return p.isEnabled
}
func (p *DarwinSystemProxy) Enable() error {
return p.update0()
}
func (p *DarwinSystemProxy) Disable() error {
interfaceDisplayName, err := getInterfaceDisplayName(p.interfaceName)
if err != nil {
return err
}
if p.supportSOCKS {
err = shell.Exec("networksetup", "-setsocksfirewallproxystate", interfaceDisplayName, "off").Attach().Run()
}
if err == nil {
err = shell.Exec("networksetup", "-setwebproxystate", interfaceDisplayName, "off").Attach().Run()
}
if err == nil {
err = shell.Exec("networksetup", "-setsecurewebproxystate", interfaceDisplayName, "off").Attach().Run()
}
if err == nil {
p.isEnabled = false
}
return err
}
func (p *DarwinSystemProxy) update(event int) {
if event&tun.EventInterfaceUpdate == 0 {
return
}
if !p.isEnabled {
return
}
_ = p.update0()
}
func (p *DarwinSystemProxy) update0() error {
newInterfaceName := p.monitor.DefaultInterfaceName(netip.IPv4Unspecified())
if p.interfaceName == newInterfaceName {
return nil
}
if p.interfaceName != "" {
_ = p.Disable()
}
p.interfaceName = newInterfaceName
interfaceDisplayName, err := getInterfaceDisplayName(p.interfaceName)
if err != nil {
return err
}
if p.supportSOCKS {
err = shell.Exec("networksetup", "-setsocksfirewallproxy", interfaceDisplayName, p.serverAddr.AddrString(), strconv.Itoa(int(p.serverAddr.Port))).Attach().Run()
}
if err != nil {
return err
}
err = shell.Exec("networksetup", "-setwebproxy", interfaceDisplayName, p.serverAddr.AddrString(), strconv.Itoa(int(p.serverAddr.Port))).Attach().Run()
if err != nil {
return err
}
err = shell.Exec("networksetup", "-setsecurewebproxy", interfaceDisplayName, p.serverAddr.AddrString(), strconv.Itoa(int(p.serverAddr.Port))).Attach().Run()
if err != nil {
return err
}
p.isEnabled = true
return nil
}
func getInterfaceDisplayName(name string) (string, error) {
content, err := shell.Exec("networksetup", "-listallhardwareports").ReadOutput()
if err != nil {
return "", err
}
for _, deviceSpan := range strings.Split(string(content), "Ethernet Address") {
if strings.Contains(deviceSpan, "Device: "+name) {
substr := "Hardware Port: "
deviceSpan = deviceSpan[strings.Index(deviceSpan, substr)+len(substr):]
deviceSpan = deviceSpan[:strings.Index(deviceSpan, "\n")]
return deviceSpan, nil
}
}
return "", E.New(name, " not found in networksetup -listallhardwareports")
}