feat(auth): Add login, register, session_info and api creation

app/middlewares/auth.go

@@ -0,0 +1,66 @@
+package middlewares
+
+import (
+	"encoding/base64"
+	"slices"
+	"strings"
+
+	"git.secnex.io/secnex/auth-api/config"
+	"git.secnex.io/secnex/auth-api/repositories"
+	"git.secnex.io/secnex/auth-api/utils"
+	"github.com/gofiber/fiber/v2"
+)
+
+func AuthMiddleware() fiber.Handler {
+	return func(c *fiber.Ctx) error {
+		// check if the endpoint is in the unprotected endpoints
+		if slices.Contains(config.CONFIG.UNPROTECTED_ENDPOINTS, c.Path()) {
+			return c.Next()
+		}
+		token := c.Get("Authorization")
+		if token == "" {
+			return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{"message": "Unauthorized"})
+		}
+
+		tokenParts := strings.Split(token, " ")
+		if len(tokenParts) != 2 {
+			return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{"message": "Unauthorized"})
+		}
+
+		tokenPartType, tokenPartValue := tokenParts[0], tokenParts[1]
+		if tokenPartType != "Bearer" {
+			return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{"message": "Unauthorized"})
+		}
+
+		// Decode the token from base64 to string
+		tokenValue, err := base64.StdEncoding.DecodeString(tokenPartValue)
+		if err != nil {
+			return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{"message": "Unauthorized"})
+		}
+		tokenValueString := string(tokenValue)
+
+		tokenValueParts := strings.Split(tokenValueString, ":")
+		if len(tokenValueParts) != 2 {
+			return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{"message": "Unauthorized"})
+		}
+		keyId, keyValue := tokenValueParts[0], tokenValueParts[1]
+		apiKey, err := repositories.GetApiKey(keyId)
+		if err != nil {
+			return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{"message": "Unauthorized"})
+		}
+		if apiKey == nil {
+			return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{"message": "Unauthorized"})
+		}
+
+		valid, err := utils.Verify(keyValue, apiKey.Key)
+		if err != nil {
+			return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{"message": "Unauthorized"})
+		}
+		if !valid {
+			return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{"message": "Unauthorized"})
+		}
+
+		c.Locals("key", keyId)
+		return c.Next()
+	}
+}