diff --git a/db/file.py b/db/file.py
index 5069495..4b0a8e5 100644
--- a/db/file.py
+++ b/db/file.py
@@ -49,7 +49,7 @@ def new(filename: str, pagenumber:int):
 def getMetadata(form: int, num: int, search:str = None):
     conn = util.getConn()
     c = conn.cursor()
-    if search is None:
+    if search == None:
         cursor = c.execute(
             "SELECT * FROM Metadata ORDER BY num desc LIMIT ?, ?", (form, num)
         )
diff --git a/file.py b/file.py
index 6df224e..985bd3b 100644
--- a/file.py
+++ b/file.py
@@ -44,7 +44,7 @@ def raedZip(bookid: str, index: int):
             image_files = [
                 file
                 for file in zip_ref.namelist()
-                if file.lower().endswith((".png", ".jpg", ".jpeg"))
+                if file.lower().endswith((".png", ".jpg", ".jpeg", ".gif", ".bmp", ".webp"))
             ]
 
             if not image_files:
diff --git a/main.py b/main.py
index 2490ead..ce271de 100644
--- a/main.py
+++ b/main.py
@@ -3,10 +3,10 @@ import db.util
 import db.file, file
 from flask import *
 
-from web.api_Img import api_Img_bp
-from web.page import page_bp
-from web.admin_page import admin_page_bp
-from web.api_comment import comment_api_bp
+from router.api_Img import api_Img_bp
+from router.page import page_bp
+from router.admin_page import admin_page_bp
+from router.api_comment import comment_api_bp
 
 app = Flask(__name__)
 
diff --git a/web/admin_page.py b/router/admin_page.py
similarity index 100%
rename from web/admin_page.py
rename to router/admin_page.py
diff --git a/web/api_Img.py b/router/api_Img.py
similarity index 100%
rename from web/api_Img.py
rename to router/api_Img.py
diff --git a/web/api_comment.py b/router/api_comment.py
similarity index 100%
rename from web/api_comment.py
rename to router/api_comment.py
diff --git a/web/page.py b/router/page.py
similarity index 100%
rename from web/page.py
rename to router/page.py