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57 lines
1.5 KiB
57 lines
1.5 KiB
package jwt
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import (
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"errors"
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"time"
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"github.com/golang-jwt/jwt/v5"
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)
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// Claims JWT声明
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type Claims struct {
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UserID uint `json:"user_id"`
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jwt.RegisteredClaims
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}
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// GenerateToken 生成Token
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func GenerateToken(userID uint, secret string, expireSeconds int64) (string, int64, error) {
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expiresAt := time.Now().Add(time.Duration(expireSeconds) * time.Second)
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claims := Claims{
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UserID: userID,
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RegisteredClaims: jwt.RegisteredClaims{
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ExpiresAt: jwt.NewNumericDate(expiresAt),
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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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}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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tokenString, err := token.SignedString([]byte(secret))
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if err != nil {
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return "", 0, err
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}
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return tokenString, expiresAt.Unix(), nil
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}
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// ParseToken 解析Token
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func ParseToken(tokenString string, secret string) (*Claims, error) {
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token, err := jwt.ParseWithClaims(tokenString, &Claims{}, func(token *jwt.Token) (interface{}, error) {
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return []byte(secret), nil
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})
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if err != nil {
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return nil, err
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}
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if claims, ok := token.Claims.(*Claims); ok && token.Valid {
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return claims, nil
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}
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return nil, errors.New("invalid token")
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}
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// RefreshToken 刷新Token
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func RefreshToken(tokenString string, secret string, expireSeconds int64) (string, int64, error) {
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claims, err := ParseToken(tokenString, secret)
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if err != nil {
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return "", 0, err
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}
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// 生成新Token
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return GenerateToken(claims.UserID, secret, expireSeconds)
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}
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