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manager.go
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manager.go
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package certificate
import (
"context"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"errors"
"fmt"
"github.com/Luna-CY/v2ray-helper/common/configurator"
"github.com/Luna-CY/v2ray-helper/common/logger"
"github.com/Luna-CY/v2ray-helper/common/notice"
"github.com/Luna-CY/v2ray-helper/common/runtime"
"github.com/Luna-CY/v2ray-helper/common/software/caddy"
"github.com/Luna-CY/v2ray-helper/common/software/v2ray"
"github.com/Luna-CY/v2ray-helper/common/util"
"github.com/go-acme/lego/v4/certcrypto"
"github.com/go-acme/lego/v4/certificate"
"github.com/go-acme/lego/v4/challenge/http01"
"github.com/go-acme/lego/v4/challenge/tlsalpn01"
"github.com/go-acme/lego/v4/lego"
"github.com/go-acme/lego/v4/registration"
"io/ioutil"
"os"
"path/filepath"
"sync"
"time"
)
var manager *Manager
// initManager 初始化证书管理器,读取所有证书
func initManager(ctx context.Context) error {
cm := new(Manager)
cm.ctx = ctx
cm.certs = map[string]*Certificate{}
path := runtime.GetCertificatePath()
stat, err := os.Stat(path)
if nil != err {
if os.IsNotExist(err) {
return errors.New(fmt.Sprintf("证书目录不存在"))
}
return errors.New(fmt.Sprintf("初始化证书管理器失败: %v", err))
}
if !stat.IsDir() {
return errors.New(fmt.Sprintf("初始化证书管理器失败: 证书路径不是一个目录: %v", path))
}
hostList, err := ioutil.ReadDir(path)
if nil != err {
return errors.New(fmt.Sprintf("初始化证书管理器失败: %v", err))
}
cm.Lock()
defer cm.Unlock()
for _, host := range hostList {
if !host.IsDir() {
return errors.New(fmt.Sprintf("检查证书失败: 此路径不是一个目录: %v", filepath.Join(path, host.Name())))
}
cert, err := loadCertificate(host.Name())
if nil != err {
return err
}
cm.certs[host.Name()] = cert
}
manager = cm
return nil
}
// loadCertificate 加载证书
func loadCertificate(host string) (*Certificate, error) {
path := runtime.GetCertificatePath()
keyStat, err := os.Stat(filepath.Join(path, host, "private.key"))
if nil != err {
if os.IsNotExist(err) {
return nil, errors.New(fmt.Sprintf("检查证书失败: 无法找到私钥文件: %v", filepath.Join(path, host, "private.key")))
}
return nil, errors.New(fmt.Sprintf("检查证书失败: %v", err))
}
if keyStat.IsDir() {
return nil, errors.New(fmt.Sprintf("证书配置错误,此路径不是一个有效的文件: %v", filepath.Join(path, host, "private.key")))
}
certStat, err := os.Stat(filepath.Join(path, host, "cert.pem"))
if nil != err {
if os.IsNotExist(err) {
return nil, errors.New(fmt.Sprintf("检查证书失败: 无法找到证书文件: %v", filepath.Join(path, host, "cert.pem")))
}
return nil, errors.New(fmt.Sprintf("检查证书失败: %v", err))
}
if certStat.IsDir() {
return nil, errors.New(fmt.Sprintf("证书配置错误,此路径不是一个有效的文件: %v", filepath.Join(path, host, "cert.pem")))
}
csrStat, err := os.Stat(filepath.Join(path, host, "cert.csr"))
if nil != err {
if os.IsNotExist(err) {
return nil, errors.New(fmt.Sprintf("检查证书失败: 无法找到证书文件: %v", filepath.Join(path, host, "cert.csr")))
}
return nil, errors.New(fmt.Sprintf("检查证书失败: %v", err))
}
if csrStat.IsDir() {
return nil, errors.New(fmt.Sprintf("证书配置错误,此路径不是一个有效的文件: %v", filepath.Join(path, host, "cert.csr")))
}
issueStat, err := os.Stat(filepath.Join(path, host, "cert.issue"))
if nil != err {
if os.IsNotExist(err) {
return nil, errors.New(fmt.Sprintf("检查证书失败: 无法找到证书文件: %v", filepath.Join(path, host, "cert.issue")))
}
return nil, errors.New(fmt.Sprintf("检查证书失败: %v", err))
}
if issueStat.IsDir() {
return nil, errors.New(fmt.Sprintf("证书配置错误,此路径不是一个有效的文件: %v", filepath.Join(path, host, "cert.issue")))
}
cert, err := newCertificate(host)
if nil != err {
return nil, err
}
return cert, nil
}
// GetManager 获取证书管理器
func GetManager() *Manager {
if nil == manager {
logger.GetLogger().Errorln("调用了未初始化的证书管理器")
panic("未初始化的证书管理器")
}
return manager
}
type Manager struct {
ctx context.Context
sync.RWMutex
certs map[string]*Certificate
}
// RenewLoop 证书续期循环
// 该方法必须放在goroutine中运行
// 该方法在凌晨4-6点进行证书检查,并续期所有有效期在10天以内的证书
func (m *Manager) RenewLoop() {
ticker := time.NewTicker(1 * time.Hour)
for {
select {
case <-m.ctx.Done():
return
case <-ticker.C:
hour := time.Now().Hour()
if 4 > hour || 6 < hour {
continue
}
m.RLock()
for host, cert := range m.certs {
if cert.GetExpireTime().Unix()-time.Now().Unix() > 10*24*3600 {
continue
}
// 10天以内续期
if err := m.renew(host); nil != err {
notice.GetManager().Push(notice.MessageTypeError, "证书续期失败", fmt.Sprintf("续期证书(%v)失败,详细请查看日志。证书有效期至: %v", host, cert.GetExpireTime().Format("2006-01-02 15:04:05")))
logger.GetLogger().Errorln(err)
}
}
m.RUnlock()
}
}
}
// renew 续期证书
// 该方法将会暂时关闭Caddy/V2ray服务
func (m *Manager) renew(host string) error {
defer func() {
if err := recover(); nil != err {
logger.GetLogger().Errorf("Panic: %v", err)
}
}()
enableCaddy := false
// 检查Caddy
caddyIsRunning, err := caddy.IsRunning()
if nil != err {
return errors.New(fmt.Sprintf("检查Caddy状态失败: %v", err))
}
if caddyIsRunning {
enableCaddy = true
if err := caddy.Stop(); nil != err {
return errors.New(fmt.Sprintf("停止Caddy服务失败: %v", err))
}
}
// 检查V2ray
v2rayIsRunning, err := v2ray.IsRunning()
if nil != err {
return errors.New(fmt.Sprintf("检查V2ray状态失败: %v", err))
}
if v2rayIsRunning {
if err := v2ray.Stop(); nil != err {
return errors.New(fmt.Sprintf("停止V2ray服务失败: %v", err))
}
}
httpIsAllow, err := util.CheckLocalPortIsAllow(80)
if nil != err {
return errors.New(fmt.Sprintf("检查端口状态失败: %v", err))
}
if !httpIsAllow {
return errors.New("续期证书失败,80端口被占用")
}
httpsIsAllow, err := util.CheckLocalPortIsAllow(443)
if nil != err {
return errors.New(fmt.Sprintf("检查端口状态失败: %v", err))
}
if !httpsIsAllow {
return errors.New("续期证书失败,443端口被占用")
}
if err := m.Renew(host, configurator.GetMainConfig().Email); nil != err {
logger.GetLogger().Errorln(err)
}
if enableCaddy {
// 启动Caddy服务
if err := caddy.Start(); nil != err {
return errors.New(fmt.Sprintf("启动Caddy服务失败: %v", err))
}
// 检查Caddy
caddyIsRunning, err = caddy.IsRunning()
if nil != err {
return errors.New(fmt.Sprintf("检查Caddy状态失败: %v", err))
}
if !caddyIsRunning {
return errors.New(fmt.Sprintf("启动Caddy服务失败: %v", err))
}
}
// 启动V2ray服务
if err := v2ray.Start(); nil != err {
return errors.New(fmt.Sprintf("启动V2ray服务失败: %v", err))
}
v2rayIsRunning, err = v2ray.IsRunning()
if nil != err {
return errors.New(fmt.Sprintf("检查V2ray状态失败: %v", err))
}
if !v2rayIsRunning {
return errors.New(fmt.Sprintf("启动V2ray服务失败: %v", err))
}
return nil
}
// CheckExists 检查域名证书是否存在
func (m *Manager) CheckExists(host string) bool {
m.RLock()
defer m.RUnlock()
if cert, ok := m.certs[host]; ok {
if time.Now().Unix() >= cert.GetExpireTime().Unix() {
return false
}
return true
}
return false
}
// GetCertificate 获取域名的证书
func (m *Manager) GetCertificate(host string) (*Certificate, error) {
m.RLock()
defer m.RUnlock()
if cert, ok := m.certs[host]; ok {
return cert, nil
}
return nil, errors.New("找不到该域名的证书")
}
// GetMustCertificate 获取域名的证书,该方法假定一定成功
func (m *Manager) GetMustCertificate(host string) *Certificate {
m.RLock()
defer m.RUnlock()
return m.certs[host]
}
// IssueNew 申请新的证书
// 申请证书需要监听80与443端口,申请证书前需要关闭所有web服务,以免续期失败
func (m *Manager) IssueNew(host, email string) (*Certificate, error) {
if m.CheckExists(host) {
return m.GetMustCertificate(host), nil
}
privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
if err != nil {
return nil, errors.New(fmt.Sprintf("无法生成私钥: %v", err))
}
userEntry := &user{Email: email, key: privateKey}
config := lego.NewConfig(userEntry)
config.Certificate.KeyType = certcrypto.RSA2048
client, err := lego.NewClient(config)
if err != nil {
return nil, errors.New(fmt.Sprintf("无法创建Acme客户端: %v", err))
}
if err = client.Challenge.SetHTTP01Provider(http01.NewProviderServer("", "80")); err != nil {
return nil, errors.New(fmt.Sprintf("绑定端口监听失败: %v", err))
}
if err = client.Challenge.SetTLSALPN01Provider(tlsalpn01.NewProviderServer("", "443")); err != nil {
return nil, errors.New(fmt.Sprintf("绑定端口监听失败: %v", err))
}
reg, err := client.Registration.Register(registration.RegisterOptions{TermsOfServiceAgreed: true})
if err != nil {
return nil, errors.New(fmt.Sprintf("注册用户失败: %v", err))
}
userEntry.Registration = reg
request := certificate.ObtainRequest{Domains: []string{host}, Bundle: true}
cert, err := client.Certificate.Obtain(request)
if err != nil {
return nil, errors.New(fmt.Sprintf("申请证书失败: %v", err))
}
if err := m.save(host, cert); nil != err {
return nil, err
}
entry, err := newCertificate(host)
if nil != err {
return nil, err
}
m.Lock()
defer m.Unlock()
m.certs[host] = entry
return entry, nil
}
// Renew 续期证书
// 续期证书需要监听80与443端口,续期前需要关闭所有web服务器,以免续期失败
func (m *Manager) Renew(host, email string) error {
lc, err := m.GetCertificate(host)
if nil != err {
return err
}
privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
if err != nil {
return errors.New(fmt.Sprintf("无法生成私钥: %v", err))
}
userEntry := &user{Email: email, key: privateKey}
config := lego.NewConfig(userEntry)
config.Certificate.KeyType = certcrypto.RSA2048
client, err := lego.NewClient(config)
if err != nil {
return errors.New(fmt.Sprintf("无法创建Acme客户端: %v", err))
}
if err = client.Challenge.SetHTTP01Provider(http01.NewProviderServer("", "80")); err != nil {
return errors.New(fmt.Sprintf("绑定端口监听失败: %v", err))
}
if err = client.Challenge.SetTLSALPN01Provider(tlsalpn01.NewProviderServer("", "443")); err != nil {
return errors.New(fmt.Sprintf("绑定端口监听失败: %v", err))
}
reg, err := client.Registration.Register(registration.RegisterOptions{TermsOfServiceAgreed: true})
if err != nil {
return errors.New(fmt.Sprintf("注册用户失败: %v", err))
}
userEntry.Registration = reg
request := certificate.Resource{Domain: host, PrivateKey: lc.GetPrivateKeyContent(), Certificate: lc.GetCertificateContent(), IssuerCertificate: lc.GetIssueCertificate(), CSR: lc.GetCsrContent()}
cert, err := client.Certificate.Renew(request, true, false, "")
if err != nil {
return errors.New(fmt.Sprintf("续期证书失败: %v", err))
}
if err := m.save(host, cert); nil != err {
return err
}
return nil
}
// save 保存证书
func (m *Manager) save(host string, cert *certificate.Resource) error {
path := runtime.GetCertificatePath()
if err := os.RemoveAll(filepath.Join(path, host)); nil != err {
return errors.New(fmt.Sprintf("申请证书失败: %v", err))
}
if err := os.MkdirAll(filepath.Join(path, host), 0755); nil != err {
return errors.New(fmt.Sprintf("申请证书失败: %v", err))
}
// 保存私钥
keyFile, err := os.OpenFile(filepath.Join(path, host, "private.key"), os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
if nil != err {
return errors.New(fmt.Sprintf("申请证书失败: %v", err))
}
defer keyFile.Close()
if _, err := keyFile.Write(cert.PrivateKey); nil != err {
return errors.New(fmt.Sprintf("申请证书失败: %v", err))
}
// 保存证书
certFile, err := os.OpenFile(filepath.Join(path, host, "cert.pem"), os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
if nil != err {
return errors.New(fmt.Sprintf("申请证书失败: %v", err))
}
defer certFile.Close()
if _, err := certFile.Write(cert.Certificate); nil != err {
return errors.New(fmt.Sprintf("申请证书失败: %v", err))
}
// 保存csr
csrFile, err := os.OpenFile(filepath.Join(path, host, "cert.csr"), os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
if nil != err {
return errors.New(fmt.Sprintf("申请证书失败: %v", err))
}
defer csrFile.Close()
if _, err := csrFile.Write(cert.CSR); nil != err {
return errors.New(fmt.Sprintf("申请证书失败: %v", err))
}
// 保存IssuerCertificate
issueFile, err := os.OpenFile(filepath.Join(path, host, "cert.issue"), os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
if nil != err {
return errors.New(fmt.Sprintf("申请证书失败: %v", err))
}
defer issueFile.Close()
if _, err := issueFile.Write(cert.IssuerCertificate); nil != err {
return errors.New(fmt.Sprintf("申请证书失败: %v", err))
}
return nil
}