feat: add auth jwt middleware

source/middlewares/jwt.go

@@ -0,0 +1,41 @@
+/**
+ * Created by fbonhomm
+ * Email: flo-github@outlook.fr
+ * Licence: MIT
+ */
+
+package middlewares
+
+import (
+    "fmt"
+    jwt "github.com/dgrijalva/jwt-go"
+    "github.com/fbonhomm/api-go/source/libs"
+    "github.com/fbonhomm/api-go/source/services"
+    "github.com/gin-gonic/gin"
+    "net/http"
+    "os"
+)
+
+func Auth(c *gin.Context) {
+    tokenString := libs.GetToken(c)
+
+    token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) {
+        if _, ok := token.Method.(*jwt.SigningMethodECDSA); !ok {
+            return nil, fmt.Errorf("Unexpected signing method: %v", token.Header["alg"])
+        }
+
+        return services.PublicKeyAccess, nil
+    })
+
+    if err != nil {
+        c.JSON(http.StatusUnauthorized, gin.H{ "error": err })
+        c.Abort()
+    }
+
+    if claims, ok := token.Claims.(jwt.MapClaims); ok && token.Valid {
+        c.Set("Token", claims)
+    } else {
+        c.JSON(http.StatusUnauthorized, gin.H{ "error": err })
+        c.Abort()
+    }
+}