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71 lines
1.6 KiB
71 lines
1.6 KiB
package middleware |
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import ( |
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"fmt" |
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"net/http" |
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"os" |
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"time" |
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"go-crud/initializers" |
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"go-crud/models" |
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"github.com/gin-gonic/gin" |
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"github.com/golang-jwt/jwt/v4" |
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) |
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func RequireAuth(c *gin.Context) { |
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// Get the cookie off req |
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tokenString, err := c.Cookie("Authorization") |
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if err != nil { |
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c.JSON(http.StatusUnauthorized, gin.H{"error": "Anda belum login"}) |
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return |
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} |
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// Decode/validate it |
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token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) { |
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if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok { |
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return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"]) |
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} |
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// hmacSampleSecret is a []byte containing your secret, e.g. []byte("my_secret_key") |
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return []byte(os.Getenv("SECRET")), nil |
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}) |
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if err != nil || !token.Valid { |
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c.JSON(http.StatusUnauthorized, gin.H{"error": "Token tidak valid"}) |
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return |
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} |
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claims, ok := token.Claims.(jwt.MapClaims) |
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if !ok { |
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c.JSON(http.StatusUnauthorized, gin.H{"error": "Token tidak valid"}) |
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return |
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} |
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// Check the exp |
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if exp, ok := claims["exp"].(float64); ok && float64(time.Now().Unix()) > exp { |
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c.JSON(http.StatusUnauthorized, gin.H{"error": "Token kedaluwarsa"}) |
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return |
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} |
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// Find the user with token sub |
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var user models.User |
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initializers.DB.First(&user, claims["sub"]) |
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if user.ID == 0 { |
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c.JSON(http.StatusUnauthorized, gin.H{"error": "User tidak ditemukan"}) |
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return |
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} |
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// Check user's level |
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if user.Email != "dave@gmail." { |
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c.JSON(http.StatusUnauthorized, gin.H{"error": "Anda tidak memiliki akses yang cukup"}) |
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return |
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} |
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// Attach to req |
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c.Set("user", user) |
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// Continue |
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c.Next() |
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}
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