Files
EdgeAdmin/internal/nodes/admin_node.go
GoEdgeLab d7d0c8fbfe v1.4.1
2024-07-27 15:42:58 +08:00

462 lines
10 KiB
Go

package nodes
import (
"errors"
"fmt"
"log"
"net"
"os"
"os/exec"
"os/signal"
"path/filepath"
"strings"
"syscall"
"time"
"github.com/TeaOSLab/EdgeAdmin/internal/configloaders"
"github.com/TeaOSLab/EdgeAdmin/internal/configs"
teaconst "github.com/TeaOSLab/EdgeAdmin/internal/const"
"github.com/TeaOSLab/EdgeAdmin/internal/events"
"github.com/TeaOSLab/EdgeAdmin/internal/utils"
"github.com/TeaOSLab/EdgeCommon/pkg/nodeconfigs"
"github.com/iwind/TeaGo"
"github.com/iwind/TeaGo/Tea"
"github.com/iwind/TeaGo/lists"
"github.com/iwind/TeaGo/logs"
"github.com/iwind/TeaGo/maps"
"github.com/iwind/TeaGo/rands"
"github.com/iwind/TeaGo/types"
"github.com/iwind/gosock/pkg/gosock"
"gopkg.in/yaml.v3"
)
var SharedAdminNode *AdminNode = nil
type AdminNode struct {
sock *gosock.Sock
subPIDs []int
}
func NewAdminNode() *AdminNode {
return &AdminNode{}
}
func (this *AdminNode) Run() {
SharedAdminNode = this
// 启动管理界面
var secret = this.genSecret()
configs.Secret = secret
// 本地Sock
err := this.listenSock()
if err != nil {
logs.Println("[NODE]", err.Error())
return
}
// 检查server配置
err = this.checkServer()
if err != nil {
if err != nil {
logs.Println("[NODE]" + err.Error())
return
}
return
}
// 添加端口到防火墙
this.addPortsToFirewall()
// 监听信号
var sigQueue = make(chan os.Signal, 8)
signal.Notify(sigQueue, syscall.SIGTERM, syscall.SIGINT, syscall.SIGKILL, syscall.SIGQUIT)
go func() {
for range sigQueue {
for _, pid := range this.subPIDs {
p, err := os.FindProcess(pid)
if err == nil && p != nil {
_ = p.Kill()
}
}
os.Exit(0)
}
}()
// 触发事件
events.Notify(events.EventStart)
// 启动API节点
this.startAPINode()
// 设置DNS相关
this.setupDNS()
// 启动IP库
this.startIPLibrary()
// 启动Web服务
sessionManager, err := NewSessionManager()
if err != nil {
log.Fatal("start session failed: " + err.Error())
return
}
TeaGo.NewServer(false).
AccessLog(false).
EndAll().
Session(sessionManager, teaconst.CookieSID).
ReadHeaderTimeout(3 * time.Second).
ReadTimeout(1200 * time.Second).
Start()
}
// Daemon 实现守护进程
func (this *AdminNode) Daemon() {
var sock = gosock.NewTmpSock(teaconst.ProcessName)
var isDebug = lists.ContainsString(os.Args, "debug")
for {
conn, err := sock.Dial()
if err != nil {
if isDebug {
log.Println("[DAEMON]starting ...")
}
// 尝试启动
err = func() error {
exe, err := os.Executable()
if err != nil {
return err
}
cmd := exec.Command(exe)
err = cmd.Start()
if err != nil {
return err
}
err = cmd.Wait()
if err != nil {
return err
}
return nil
}()
if err != nil {
if isDebug {
log.Println("[DAEMON]", err)
}
time.Sleep(1 * time.Second)
} else {
time.Sleep(5 * time.Second)
}
} else {
_ = conn.Close()
time.Sleep(5 * time.Second)
}
}
}
// InstallSystemService 安装系统服务
func (this *AdminNode) InstallSystemService() error {
shortName := teaconst.SystemdServiceName
exe, err := os.Executable()
if err != nil {
return err
}
manager := utils.NewServiceManager(shortName, teaconst.ProductName)
err = manager.Install(exe, []string{})
if err != nil {
return err
}
return nil
}
// AddSubPID 添加子PID
func (this *AdminNode) AddSubPID(pid int) {
this.subPIDs = append(this.subPIDs, pid)
}
// 检查Server配置
func (this *AdminNode) checkServer() error {
configFile := Tea.ConfigFile("server.yaml")
_, err := os.Stat(configFile)
if err == nil {
return nil
}
if os.IsNotExist(err) {
// 创建文件
templateFile := Tea.ConfigFile("server.template.yaml")
data, err := os.ReadFile(templateFile)
if err == nil {
err = os.WriteFile(configFile, data, 0666)
if err != nil {
return fmt.Errorf("create config file failed: %w", err)
}
} else {
templateYAML := `# environment code
env: prod
# http
http:
"on": true
listen: [ "0.0.0.0:7788" ]
# https
https:
"on": false
listen: [ "0.0.0.0:443"]
cert: ""
key: ""
`
err = os.WriteFile(configFile, []byte(templateYAML), 0666)
if err != nil {
return fmt.Errorf("create config file failed: %w", err)
}
}
} else {
return fmt.Errorf("can not read config from 'configs/server.yaml': %w", err)
}
return nil
}
// 添加端口到防火墙
func (this *AdminNode) addPortsToFirewall() {
var configFile = Tea.ConfigFile("server.yaml")
data, err := os.ReadFile(configFile)
if err != nil {
return
}
var config = &TeaGo.ServerConfig{}
err = yaml.Unmarshal(data, config)
if err != nil {
return
}
var ports = []int{}
if config.Http.On {
for _, listen := range config.Http.Listen {
_, portString, _ := net.SplitHostPort(listen)
var port = types.Int(portString)
if port > 0 && !lists.ContainsInt(ports, port) {
ports = append(ports, port)
}
}
}
if config.Https.On {
for _, listen := range config.Https.Listen {
_, portString, _ := net.SplitHostPort(listen)
var port = types.Int(portString)
if port > 0 && !lists.ContainsInt(ports, port) {
ports = append(ports, port)
}
}
}
utils.AddPortsToFirewall(ports)
}
// 设置DNS相关
func (this *AdminNode) setupDNS() {
config, loadErr := configloaders.LoadAdminUIConfig()
if loadErr != nil {
// 默认使用go原生
err := os.Setenv("GODEBUG", "netdns=go")
if err != nil {
logs.Println("[DNS_RESOLVER]set env failed: " + err.Error())
}
return
}
var err error
switch config.DNSResolver.Type {
case nodeconfigs.DNSResolverTypeGoNative:
err = os.Setenv("GODEBUG", "netdns=go")
case nodeconfigs.DNSResolverTypeCGO:
err = os.Setenv("GODEBUG", "netdns=cgo")
default:
// 默认使用go原生
err = os.Setenv("GODEBUG", "netdns=go")
}
if err != nil {
logs.Println("[DNS_RESOLVER]set env failed: " + err.Error())
}
}
// 启动API节点
func (this *AdminNode) startAPINode() {
var configPath = Tea.Root + "/edge-api/configs/api.yaml"
_, err := os.Stat(configPath)
canStart := false
if err == nil {
canStart = true
} else if err != nil && os.IsNotExist(err) {
// 尝试恢复api.yaml
homeDir, _ := os.UserHomeDir()
paths := []string{}
if len(homeDir) > 0 {
paths = append(paths, homeDir+"/.edge-api/api.yaml")
}
paths = append(paths, "/etc/edge-api/api.yaml")
for _, path := range paths {
_, err = os.Stat(path)
if err == nil {
data, err := os.ReadFile(path)
if err == nil {
err = os.WriteFile(configPath, data, 0666)
if err == nil {
logs.Println("[NODE]recover 'edge-api/configs/api.yaml' from '" + path + "'")
canStart = true
break
}
}
}
}
}
dbPath := Tea.Root + "/edge-api/configs/db.yaml"
_, err = os.Stat(dbPath)
if err != nil && os.IsNotExist(err) {
// 尝试恢复db.yaml
homeDir, _ := os.UserHomeDir()
paths := []string{}
if len(homeDir) > 0 {
paths = append(paths, homeDir+"/.edge-api/db.yaml")
}
paths = append(paths, "/etc/edge-api/db.yaml")
for _, path := range paths {
_, err = os.Stat(path)
if err == nil {
data, err := os.ReadFile(path)
if err == nil {
err = os.WriteFile(dbPath, data, 0666)
if err == nil {
logs.Println("[NODE]recover 'edge-api/configs/db.yaml' from '" + path + "'")
break
}
}
}
}
}
if canStart {
logs.Println("start edge-api")
cmd := exec.Command(Tea.Root + "/edge-api/bin/edge-api")
err = cmd.Start()
if err != nil {
logs.Println("[ERROR]start edge-api failed: " + err.Error())
} else {
this.subPIDs = append(this.subPIDs, cmd.Process.Pid)
}
}
}
// 生成Secret
func (this *AdminNode) genSecret() string {
tmpFile := os.TempDir() + "/edge-admin-secret.tmp"
data, err := os.ReadFile(tmpFile)
if err == nil && len(data) == 32 {
return string(data)
}
secret := rands.String(32)
_ = os.WriteFile(tmpFile, []byte(secret), 0666)
return secret
}
// 监听本地sock
func (this *AdminNode) listenSock() error {
this.sock = gosock.NewTmpSock(teaconst.ProcessName)
// 检查是否在运行
if this.sock.IsListening() {
reply, err := this.sock.Send(&gosock.Command{Code: "pid"})
if err == nil {
return errors.New("error: the process is already running, pid: " + maps.NewMap(reply.Params).GetString("pid"))
} else {
return errors.New("error: the process is already running")
}
}
// 启动监听
go func() {
this.sock.OnCommand(func(cmd *gosock.Command) {
switch cmd.Code {
case "pid":
_ = cmd.Reply(&gosock.Command{
Code: "pid",
Params: map[string]interface{}{
"pid": os.Getpid(),
},
})
case "stop":
_ = cmd.ReplyOk()
// 关闭子进程
for _, pid := range this.subPIDs {
p, err := os.FindProcess(pid)
if err == nil && p != nil {
_ = p.Kill()
}
}
// 停止当前目录下的API节点
var apiSock = gosock.NewTmpSock("edge-api")
apiReply, err := apiSock.Send(&gosock.Command{Code: "info"})
if err == nil {
adminExe, _ := os.Executable()
if len(adminExe) > 0 && apiReply != nil && strings.HasPrefix(maps.NewMap(apiReply.Params).GetString("path"), filepath.Dir(filepath.Dir(adminExe))) {
_, _ = apiSock.Send(&gosock.Command{Code: "stop"})
}
}
// 退出主进程
events.Notify(events.EventQuit)
os.Exit(0)
case "recover":
teaconst.IsRecoverMode = true
_ = cmd.ReplyOk()
case "demo":
teaconst.IsDemoMode = !teaconst.IsDemoMode
_ = cmd.Reply(&gosock.Command{
Params: map[string]interface{}{"isDemo": teaconst.IsDemoMode},
})
case "info":
exePath, _ := os.Executable()
_ = cmd.Reply(&gosock.Command{
Code: "info",
Params: map[string]interface{}{
"pid": os.Getpid(),
"version": teaconst.Version,
"path": exePath,
},
})
case "dev": // 切换到dev
Tea.Env = Tea.EnvDev
_ = cmd.ReplyOk()
case "prod": // 切换到prod
Tea.Env = Tea.EnvProd
_ = cmd.ReplyOk()
case "security.reset":
var newConfig = configloaders.NewSecurityConfig()
_ = configloaders.UpdateSecurityConfig(newConfig)
_ = cmd.ReplyOk()
}
})
err := this.sock.Listen()
if err != nil {
logs.Println("NODE", err.Error())
}
}()
events.On(events.EventQuit, func() {
logs.Println("NODE", "quit unix sock")
_ = this.sock.Close()
})
return nil
}