mirror of https://github.com/Xhofe/alist
79 lines
2.1 KiB
Go
79 lines
2.1 KiB
Go
package common
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import (
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"time"
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"github.com/Xhofe/go-cache"
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"github.com/alist-org/alist/v3/internal/conf"
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"github.com/alist-org/alist/v3/internal/model"
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"github.com/golang-jwt/jwt/v4"
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"github.com/pkg/errors"
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)
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var SecretKey []byte
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type UserClaims struct {
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Username string `json:"username"`
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PwdTS int64 `json:"pwd_ts"`
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jwt.RegisteredClaims
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}
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var validTokenCache = cache.NewMemCache[bool]()
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func GenerateToken(user *model.User) (tokenString string, err error) {
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claim := UserClaims{
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Username: user.Username,
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PwdTS: user.PwdTS,
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RegisteredClaims: jwt.RegisteredClaims{
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ExpiresAt: jwt.NewNumericDate(time.Now().Add(time.Duration(conf.Conf.TokenExpiresIn) * time.Hour)),
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IssuedAt: jwt.NewNumericDate(time.Now()),
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NotBefore: jwt.NewNumericDate(time.Now()),
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}}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claim)
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tokenString, err = token.SignedString(SecretKey)
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if err != nil {
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return "", err
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}
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validTokenCache.Set(tokenString, true)
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return tokenString, err
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}
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func ParseToken(tokenString string) (*UserClaims, error) {
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token, err := jwt.ParseWithClaims(tokenString, &UserClaims{}, func(token *jwt.Token) (interface{}, error) {
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return SecretKey, nil
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})
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if IsTokenInvalidated(tokenString) {
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return nil, errors.New("token is invalidated")
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}
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if err != nil {
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if ve, ok := err.(*jwt.ValidationError); ok {
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if ve.Errors&jwt.ValidationErrorMalformed != 0 {
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return nil, errors.New("that's not even a token")
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} else if ve.Errors&jwt.ValidationErrorExpired != 0 {
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return nil, errors.New("token is expired")
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} else if ve.Errors&jwt.ValidationErrorNotValidYet != 0 {
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return nil, errors.New("token not active yet")
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} else {
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return nil, errors.New("couldn't handle this token")
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}
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}
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}
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if claims, ok := token.Claims.(*UserClaims); ok && token.Valid {
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return claims, nil
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}
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return nil, errors.New("couldn't handle this token")
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}
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func InvalidateToken(tokenString string) error {
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if tokenString == "" {
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return nil // don't invalidate empty guest token
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}
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validTokenCache.Del(tokenString)
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return nil
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}
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func IsTokenInvalidated(tokenString string) bool {
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_, ok := validTokenCache.Get(tokenString)
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return !ok
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}
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