first commit

lib/util.go

@@ -0,0 +1,57 @@
+package lib
+
+import (
+	"crypto/rand"
+	"crypto/sha256"
+	"fmt"
+	"log"
+	"strings"
+	"time"
+
+	"github.com/gofiber/fiber/v2"
+)
+
+func GetFTime() string {
+  return time.Now().Format("01/02/2006")
+}
+
+func GetRandom() string {
+  buf := make([]byte, 128)
+  _, err := rand.Read(buf)
+  if err != nil {
+    log.Fatalf("Failed to get random bytes: %s", err.Error())
+  }
+
+  return GetSHA256(buf)
+}
+
+func GetSHA256(s []byte) string {
+  sum := sha256.Sum256(s)
+  return fmt.Sprintf("%x", sum)
+}
+
+func ContainsCase(s1 string, s2 string) bool {
+  return strings.Contains(
+    strings.ToLower(s1), strings.ToLower(s2),
+  )
+} 
+
+func RenderError(c *fiber.Ctx, code int) error{
+  var msg string = "Server Error"
+  c.Status(code)
+
+  switch code {
+  case 404:
+    msg = "Not Found"
+  case 500:
+    msg = "Server error"
+  case 403:
+    msg = "Forbidden"
+  case 400:
+    msg = "Bad request"
+  }
+
+  return c.Render("error", fiber.Map{
+    "msg": msg,
+  })
+}