update

refactor limiter
fix getLink bug
add connection limit
move limit config to ControllerConfig
del dynamic speed limit (next version will be re add)
del online ip sync (next version will be re add)

node/lego/user.go

@@ -0,0 +1,129 @@
+package lego
+
+import (
+	"crypto"
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	"crypto/rand"
+	"crypto/x509"
+	"encoding/pem"
+	"fmt"
+	"github.com/Yuzuki616/V2bX/common/file"
+	"github.com/go-acme/lego/v4/lego"
+	"github.com/go-acme/lego/v4/registration"
+	"github.com/goccy/go-json"
+	"os"
+)
+
+type User struct {
+	Email        string                 `json:"Email"`
+	Registration *registration.Resource `json:"Registration"`
+	key          crypto.PrivateKey
+	KeyEncoded   string `json:"Key"`
+}
+
+func (u *User) GetEmail() string {
+	return u.Email
+}
+func (u *User) GetRegistration() *registration.Resource {
+	return u.Registration
+}
+func (u *User) GetPrivateKey() crypto.PrivateKey {
+	return u.key
+}
+
+func NewUser(path string, email string) (*User, error) {
+	var user User
+	if file.IsExist(path) {
+		err := user.Load(path)
+		if err != nil {
+			return nil, err
+		}
+		if user.Email != email {
+			user.Registration = nil
+			user.Email = email
+			err := registerUser(&user, path)
+			if err != nil {
+				return nil, err
+			}
+		}
+	} else {
+		user.Email = email
+		err := registerUser(&user, path)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return &user, nil
+}
+
+func registerUser(user *User, path string) error {
+	privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		return fmt.Errorf("generate key error: %s", err)
+	}
+	user.key = privateKey
+	c := lego.NewConfig(user)
+	client, err := lego.NewClient(c)
+	if err != nil {
+		return fmt.Errorf("create lego client error: %s", err)
+	}
+	reg, err := client.Registration.Register(registration.RegisterOptions{TermsOfServiceAgreed: true})
+	if err != nil {
+		return err
+	}
+	user.Registration = reg
+	err = user.Save(path)
+	if err != nil {
+		return fmt.Errorf("save user error: %s", err)
+	}
+	return nil
+}
+
+func EncodePrivate(privKey *ecdsa.PrivateKey) (string, error) {
+	encoded, err := x509.MarshalECPrivateKey(privKey)
+	if err != nil {
+		return "", err
+	}
+	pemEncoded := pem.EncodeToMemory(&pem.Block{Type: "EC PRIVATE KEY", Bytes: encoded})
+	return string(pemEncoded), nil
+}
+func (u *User) Save(path string) error {
+	err := checkPath(path)
+	if err != nil {
+		return fmt.Errorf("check path error: %s", err)
+	}
+	u.KeyEncoded, _ = EncodePrivate(u.key.(*ecdsa.PrivateKey))
+	f, err := os.OpenFile(path, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0644)
+	if err != nil {
+		return err
+	}
+	err = json.NewEncoder(f).Encode(u)
+	if err != nil {
+		return fmt.Errorf("marshal json error: %s", err)
+	}
+	u.KeyEncoded = ""
+	return nil
+}
+
+func (u *User) DecodePrivate(pemEncodedPriv string) (*ecdsa.PrivateKey, error) {
+	blockPriv, _ := pem.Decode([]byte(pemEncodedPriv))
+	x509EncodedPriv := blockPriv.Bytes
+	privateKey, err := x509.ParseECPrivateKey(x509EncodedPriv)
+	return privateKey, err
+}
+func (u *User) Load(path string) error {
+	f, err := os.Open(path)
+	if err != nil {
+		return fmt.Errorf("open file error: %s", err)
+	}
+	err = json.NewDecoder(f).Decode(u)
+	if err != nil {
+		return fmt.Errorf("unmarshal json error: %s", err)
+	}
+	u.key, err = u.DecodePrivate(u.KeyEncoded)
+	if err != nil {
+		return fmt.Errorf("decode private key error: %s", err)
+	}
+	return nil
+}