mirror of https://github.com/Xhofe/alist
51 lines
1.4 KiB
Go
51 lines
1.4 KiB
Go
package common
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import (
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"github.com/golang-jwt/jwt/v4"
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"github.com/pkg/errors"
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"time"
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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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jwt.RegisteredClaims
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}
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func GenerateToken(username string) (tokenString string, err error) {
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claim := UserClaims{
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Username: username,
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RegisteredClaims: jwt.RegisteredClaims{
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ExpiresAt: jwt.NewNumericDate(time.Now().Add(12 * 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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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 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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