71 lines
1.7 KiB
Go
71 lines
1.7 KiB
Go
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package middleware
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import (
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"fmt"
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"net/http"
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"strings"
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"github.com/flatrender/notification-svc/internal/models"
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"github.com/gin-gonic/gin"
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"github.com/golang-jwt/jwt/v5"
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"github.com/google/uuid"
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)
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const (
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CtxUserID = "user_id"
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CtxTenantID = "tenant_id"
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CtxIsAdmin = "is_admin"
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)
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func JWTAuth(secret string) gin.HandlerFunc {
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return func(c *gin.Context) {
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hdr := c.GetHeader("Authorization")
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if !strings.HasPrefix(hdr, "Bearer ") {
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c.AbortWithStatusJSON(http.StatusUnauthorized, models.APIError{Code: "unauthorized", Message: "missing bearer token"})
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return
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}
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token, err := jwt.Parse(hdr[7:], func(t *jwt.Token) (interface{}, error) {
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if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
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return nil, jwt.ErrSignatureInvalid
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}
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return []byte(secret), nil
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})
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if err != nil || !token.Valid {
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c.AbortWithStatusJSON(http.StatusUnauthorized, models.APIError{Code: "unauthorized", Message: "invalid token"})
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return
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}
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claims, _ := token.Claims.(jwt.MapClaims)
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userID, _ := uuid.Parse(fmt.Sprintf("%v", claims["sub"]))
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tenantID, _ := uuid.Parse(fmt.Sprintf("%v", claims["tenant_id"]))
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isAdmin, _ := claims["is_admin"].(bool)
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c.Set(CtxUserID, userID)
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c.Set(CtxTenantID, tenantID)
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c.Set(CtxIsAdmin, isAdmin)
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c.Next()
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}
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}
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func RequireAdmin() gin.HandlerFunc {
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return func(c *gin.Context) {
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v, _ := c.Get(CtxIsAdmin)
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b, _ := v.(bool)
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if !b {
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c.AbortWithStatusJSON(http.StatusForbidden, models.APIError{Code: "forbidden", Message: "admin required"})
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return
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}
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c.Next()
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}
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}
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func GetUserID(c *gin.Context) uuid.UUID {
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v, _ := c.Get(CtxUserID)
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id, _ := v.(uuid.UUID)
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return id
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}
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func GetTenantID(c *gin.Context) uuid.UUID {
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v, _ := c.Get(CtxTenantID)
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id, _ := v.(uuid.UUID)
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return id
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}
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