84 lines
2.1 KiB
Go
84 lines
2.1 KiB
Go
package jwt
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import (
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"errors"
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"log"
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"time"
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"verification-platform-backend/internal/config"
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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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Username string `json:"username"`
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Role string `json:"role"`
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jwt.RegisteredClaims
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}
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// GenerateToken 生成JWT令牌
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func GenerateToken(userID uint, username, role string) (string, error) {
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expireHours := config.GetInt("app.jwt_expire_hours")
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if expireHours <= 0 {
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expireHours = 24
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}
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jwtSecret := config.GetString("app.jwt_secret")
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log.Printf("[JWT] GenerateToken using jwt_secret: %s (length: %d)", jwtSecret, len(jwtSecret))
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expiresAt := time.Now().Add(time.Hour * time.Duration(expireHours))
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claims := Claims{
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UserID: userID,
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Username: username,
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Role: role,
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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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Issuer: config.GetString("app.name"),
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},
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}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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return token.SignedString([]byte(jwtSecret))
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}
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// ParseToken 解析JWT令牌
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func ParseToken(tokenString string) (*Claims, error) {
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jwtSecret := config.GetString("app.jwt_secret")
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log.Printf("[JWT] ParseToken using jwt_secret: %s (length: %d)", jwtSecret, len(jwtSecret))
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token, err := jwt.ParseWithClaims(tokenString, &Claims{}, func(token *jwt.Token) (interface{}, error) {
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return []byte(jwtSecret), nil
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})
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if err != nil {
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log.Printf("[JWT] ParseToken error: %v", err)
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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 刷新令牌
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func RefreshToken(tokenString string) (string, error) {
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claims, err := ParseToken(tokenString)
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if err != nil {
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return "", err
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}
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// 检查令牌是否即将过期（30分钟内）
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if time.Until(claims.ExpiresAt.Time) > 30*time.Minute {
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return "", errors.New("token is still valid")
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}
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// 生成新令牌
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return GenerateToken(claims.UserID, claims.Username, claims.Role)
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}
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