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323 lines
7.4 KiB
323 lines
7.4 KiB
package client
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import (
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"fmt"
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"strings"
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"github.com/1Panel-dev/1Panel/backend/buserr"
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"github.com/1Panel-dev/1Panel/backend/constant"
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"github.com/1Panel-dev/1Panel/backend/utils/cmd"
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)
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type Ufw struct {
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CmdStr string
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}
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func NewUfw() (*Ufw, error) {
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var ufw Ufw
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if cmd.HasNoPasswordSudo() {
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ufw.CmdStr = "sudo ufw"
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} else {
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ufw.CmdStr = "ufw"
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}
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return &ufw, nil
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}
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func (f *Ufw) Name() string {
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return "ufw"
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}
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func (f *Ufw) Status() (string, error) {
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stdout, _ := cmd.Execf("%s status | grep Status", f.CmdStr)
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if stdout == "Status: active\n" {
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return "running", nil
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}
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stdout1, _ := cmd.Execf("%s status | grep 状态", f.CmdStr)
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if stdout1 == "状态： 激活\n" {
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return "running", nil
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}
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return "not running", nil
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}
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func (f *Ufw) Version() (string, error) {
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stdout, err := cmd.Execf("%s version | grep ufw", f.CmdStr)
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if err != nil {
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return "", fmt.Errorf("load the firewall status failed, err: %s", stdout)
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}
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info := strings.ReplaceAll(stdout, "\n", "")
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return strings.ReplaceAll(info, "ufw ", ""), nil
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}
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func (f *Ufw) Start() error {
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stdout, err := cmd.Execf("echo y | %s enable", f.CmdStr)
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if err != nil {
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return fmt.Errorf("enable the firewall failed, err: %s", stdout)
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}
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return nil
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}
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func (f *Ufw) Stop() error {
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stdout, err := cmd.Execf("%s disable", f.CmdStr)
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if err != nil {
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return fmt.Errorf("stop the firewall failed, err: %s", stdout)
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}
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return nil
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}
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func (f *Ufw) Restart() error {
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if err := f.Stop(); err != nil {
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return err
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}
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if err := f.Start(); err != nil {
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return err
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}
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return nil
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}
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func (f *Ufw) Reload() error {
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return nil
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}
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func (f *Ufw) ListPort() ([]FireInfo, error) {
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stdout, err := cmd.Execf("%s status verbose", f.CmdStr)
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if err != nil {
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return nil, err
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}
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portInfos := strings.Split(stdout, "\n")
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var datas []FireInfo
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isStart := false
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for _, line := range portInfos {
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if strings.HasPrefix(line, "-") {
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isStart = true
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continue
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}
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if !isStart {
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continue
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}
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itemFire := f.loadInfo(line, "port")
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if len(itemFire.Port) != 0 && itemFire.Port != "Anywhere" && !strings.Contains(itemFire.Port, ".") {
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itemFire.Port = strings.ReplaceAll(itemFire.Port, ":", "-")
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datas = append(datas, itemFire)
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}
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}
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return datas, nil
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}
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func (f *Ufw) ListForward() ([]FireInfo, error) {
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iptables, err := NewIptables()
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if err != nil {
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return nil, err
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}
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rules, err := iptables.NatList()
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if err != nil {
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return nil, err
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}
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var list []FireInfo
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for _, rule := range rules {
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dest := strings.Split(rule.DestPort, ":")
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if len(dest) < 2 {
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continue
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}
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if len(dest[0]) == 0 {
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dest[0] = "127.0.0.1"
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}
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list = append(list, FireInfo{
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Num: rule.Num,
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Protocol: rule.Protocol,
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Port: rule.SrcPort,
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TargetIP: dest[0],
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TargetPort: dest[1],
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})
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}
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return list, nil
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}
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func (f *Ufw) ListAddress() ([]FireInfo, error) {
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stdout, err := cmd.Execf("%s status verbose", f.CmdStr)
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if err != nil {
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return nil, err
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}
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portInfos := strings.Split(stdout, "\n")
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var datas []FireInfo
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isStart := false
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for _, line := range portInfos {
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if strings.HasPrefix(line, "-") {
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isStart = true
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continue
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}
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if !isStart {
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continue
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}
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if !strings.Contains(line, " IN") {
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continue
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}
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itemFire := f.loadInfo(line, "address")
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if strings.Contains(itemFire.Port, ".") {
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itemFire.Address += ("-" + itemFire.Port)
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itemFire.Port = ""
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}
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if len(itemFire.Port) == 0 && len(itemFire.Address) != 0 {
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datas = append(datas, itemFire)
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}
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}
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return datas, nil
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}
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func (f *Ufw) Port(port FireInfo, operation string) error {
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switch port.Strategy {
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case "accept":
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port.Strategy = "allow"
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case "drop":
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port.Strategy = "deny"
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default:
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return fmt.Errorf("unsupported strategy %s", port.Strategy)
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}
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if cmd.CheckIllegal(port.Protocol, port.Port) {
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return buserr.New(constant.ErrCmdIllegal)
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}
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command := fmt.Sprintf("%s %s %s", f.CmdStr, port.Strategy, port.Port)
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if operation == "remove" {
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command = fmt.Sprintf("%s delete %s %s", f.CmdStr, port.Strategy, port.Port)
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}
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if len(port.Protocol) != 0 {
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command += fmt.Sprintf("/%s", port.Protocol)
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}
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stdout, err := cmd.Exec(command)
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if err != nil {
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return fmt.Errorf("%s (%s) failed, err: %s", operation, command, stdout)
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}
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return nil
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}
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func (f *Ufw) RichRules(rule FireInfo, operation string) error {
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switch rule.Strategy {
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case "accept":
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rule.Strategy = "allow"
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case "drop":
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rule.Strategy = "deny"
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default:
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return fmt.Errorf("unsupported strategy %s", rule.Strategy)
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}
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if cmd.CheckIllegal(operation, rule.Protocol, rule.Address, rule.Port) {
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return buserr.New(constant.ErrCmdIllegal)
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}
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ruleStr := fmt.Sprintf("%s insert 1 %s ", f.CmdStr, rule.Strategy)
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if operation == "remove" {
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ruleStr = fmt.Sprintf("%s delete %s ", f.CmdStr, rule.Strategy)
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}
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if len(rule.Protocol) != 0 {
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ruleStr += fmt.Sprintf("proto %s ", rule.Protocol)
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}
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if strings.Contains(rule.Address, "-") {
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ruleStr += fmt.Sprintf("from %s to %s ", strings.Split(rule.Address, "-")[0], strings.Split(rule.Address, "-")[1])
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} else {
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ruleStr += fmt.Sprintf("from %s ", rule.Address)
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}
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if len(rule.Port) != 0 {
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ruleStr += fmt.Sprintf("to any port %s ", rule.Port)
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}
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stdout, err := cmd.Exec(ruleStr)
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if err != nil {
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if strings.Contains(stdout, "ERROR: Invalid position") || strings.Contains(stdout, "ERROR: 无效位置") {
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stdout, err := cmd.Exec(strings.ReplaceAll(ruleStr, "insert 1 ", ""))
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if err != nil {
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return fmt.Errorf("%s rich rules (%s), failed, err: %s", operation, ruleStr, stdout)
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}
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return nil
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}
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return fmt.Errorf("%s rich rules (%s), failed, err: %s", operation, ruleStr, stdout)
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}
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return nil
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}
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func (f *Ufw) PortForward(info Forward, operation string) error {
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iptables, err := NewIptables()
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if err != nil {
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return err
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}
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if operation == "add" {
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err = iptables.NatAdd(info.Protocol, info.Port, info.TargetIP, info.TargetPort, true)
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} else {
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err = iptables.NatRemove(info.Num, info.Protocol, info.Port, info.TargetIP, info.TargetPort)
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}
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if err != nil {
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return fmt.Errorf("%s port forward failed, err: %s", operation, err)
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}
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return nil
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}
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func (f *Ufw) loadInfo(line string, fireType string) FireInfo {
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fields := strings.Fields(line)
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var itemInfo FireInfo
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if strings.Contains(line, "LIMIT") || strings.Contains(line, "ALLOW FWD") {
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return itemInfo
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}
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if len(fields) < 4 {
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return itemInfo
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}
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if fields[1] == "(v6)" && fireType == "port" {
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return itemInfo
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}
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if fields[0] == "Anywhere" && fireType != "port" {
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itemInfo.Strategy = "drop"
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if fields[1] == "ALLOW" {
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itemInfo.Strategy = "accept"
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}
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if fields[1] == "(v6)" {
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if fields[2] == "ALLOW" {
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itemInfo.Strategy = "accept"
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}
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itemInfo.Address = fields[4]
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} else {
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itemInfo.Address = fields[3]
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}
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return itemInfo
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}
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if strings.Contains(fields[0], "/") {
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itemInfo.Port = strings.Split(fields[0], "/")[0]
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itemInfo.Protocol = strings.Split(fields[0], "/")[1]
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} else {
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itemInfo.Port = fields[0]
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itemInfo.Protocol = "tcp/udp"
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}
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itemInfo.Family = "ipv4"
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if fields[1] == "ALLOW" {
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itemInfo.Strategy = "accept"
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} else {
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itemInfo.Strategy = "drop"
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}
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itemInfo.Address = fields[3]
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return itemInfo
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}
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func (f *Ufw) EnableForward() error {
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iptables, err := NewIptables()
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if err != nil {
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return err
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}
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_ = iptables.NatNewChain()
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rules, err := iptables.NatList("PREROUTING")
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if err != nil {
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return err
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}
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for _, rule := range rules {
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if rule.Target == NatChain {
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goto reload
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}
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}
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if err = iptables.NatAppendChain(); err != nil {
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return err
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}
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reload:
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return iptables.Reload()
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}
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