139 lines
2.8 KiB
Go
139 lines
2.8 KiB
Go
package middlewares
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import(
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"os"
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"fmt"
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"time"
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"strconv"
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"net/http"
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"github.com/gin-gonic/gin"
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"github.com/golang-jwt/jwt/v5"
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"example.com/gin/test/models"
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"example.com/gin/test/repositories"
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)
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type AuthValidator struct {
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}
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func (av *AuthValidator) RequireRoomAdmin(c *gin.Context) {
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user, exists := c.Get("user")
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if !exists {
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c.AbortWithStatus(http.StatusUnauthorized)
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return
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}
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roomId, err := strconv.Atoi(c.Param("id"))
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{ "message": fmt.Sprintf("Room with Id '%s' does not exist", c.Param("id"))})
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return
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}
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rooms, err := repositories.Users.GetOwnedRooms(user.(models.User))
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{ "message": "Could not querie owend rooms"})
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return
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}
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for _, room := range rooms {
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if room.ID == uint(roomId) {
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c.Next()
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return
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}
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}
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c.AbortWithStatus(http.StatusUnauthorized)
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}
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func (av *AuthValidator) RequireAuth(c *gin.Context) {
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// Get Cookie
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tokenString, err := c.Cookie("Authorization")
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if err != nil {
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c.AbortWithStatus(http.StatusUnauthorized)
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return
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}
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//Validate
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token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) {
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// Don't forget to validate the alg is what you expect:
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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 {
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c.AbortWithStatus(http.StatusUnauthorized)
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return
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}
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if claims, ok := token.Claims.(jwt.MapClaims); ok {
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//Check Expiration
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if float64(time.Now().Unix()) > claims["exp"].(float64) {
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//expired
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c.AbortWithStatus(http.StatusUnauthorized)
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return
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}
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//Find user
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user, err := repositories.Users.GetById(claims["sub"])
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if err != nil {
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c.AbortWithStatus(http.StatusUnauthorized)
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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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// Coninue
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c.Next()
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return
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}
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c.AbortWithStatus(http.StatusUnauthorized)
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}
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func (av *AuthValidator) OptionalAuth(c *gin.Context) {
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defer c.Next()
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// Get Cookie
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tokenString, err := c.Cookie("Authorization")
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if err != nil {
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return
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}
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//Validate
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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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return []byte(os.Getenv("SECRET")), nil
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})
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if err != nil {
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return
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}
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if claims, ok := token.Claims.(jwt.MapClaims); ok {
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if float64(time.Now().Unix()) > claims["exp"].(float64) {
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return
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}
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//Find user
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user, err := repositories.Users.GetById(claims["sub"])
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if err != nil {
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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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}
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}
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