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package middleware
import (
"fmt"
"net/http"
"os"
"time"
"go-crud/initializers"
"go-crud/models"
"github.com/gin-gonic/gin"
"github.com/golang-jwt/jwt/v4"
)
func RequireAuth(c *gin.Context) {
// Get the cookie off req
tokenString, err := c.Cookie("Authorization")
if err != nil {
c.AbortWithStatus(http.StatusUnauthorized)
return
}
// Decode/validate it
token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) {
if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
}
// hmacSampleSecret is a []byte containing your secret, e.g. []byte("my_secret_key")
return []byte(os.Getenv("SECRET")), nil
})
if err != nil || !token.Valid {
c.AbortWithStatus(http.StatusUnauthorized)
return
}
claims, ok := token.Claims.(jwt.MapClaims)
if !ok {
c.AbortWithStatus(http.StatusUnauthorized)
return
}
// Check the exp
if exp, ok := claims["exp"].(float64); ok && float64(time.Now().Unix()) > exp {
c.AbortWithStatus(http.StatusUnauthorized)
return
}
// Find the user with token sub
var user models.User
initializers.DB.First(&user, claims["sub"])
var recordData models.LoginRecord
initializers.DB.First(&recordData, claims["sub"])
var post models.Post
initializers.DB.First(&post, claims["sub"])
var event models.Event
initializers.DB.First(&event, claims["sub"])
if user.ID == 0 {
c.AbortWithStatus(http.StatusUnauthorized)
return
}
// Attach to req
c.Set("user", user)
// Continue
c.Next()
}