feat: load default thumbnail on fetch rather than copying default thumbnail to user/product on creation

matemat/__main__.py

@@ -61,6 +61,17 @@ def _init(config: Dict[str, Any]):
     template_init(config)
 
 
+@bottle.route('/static/upload/thumbnails/<resource>/<filename>')
+def get_thumbnail(resource: str, filename: str):
+    config = get_config()
+    static: str = os.path.abspath(config['staticroot'])
+    rpath: str = os.path.join(static, 'upload/thumbnails', resource)
+    resp = bottle.static_file(filename, root=rpath)
+    if resp.status_code != 200:
+        resp = bottle.static_file('default.png', root=rpath)
+    return resp
+
+
 @bottle.route('/static/<filename:path>')
 def serve_static_files(filename: str):
     config = get_config()

matemat/webserver/pagelets/admin.py

@@ -84,17 +84,6 @@ def handle_change(args: FormsDict, files: FormsDict, db: MatematDatabase):
             newuser: User = db.create_user(username, password, email, member=is_member, admin=is_admin,
                                            logout_after_purchase=logout_after_purchase)
 
-            # If a default avatar is set, copy it to the user's avatar path
-
-            # Create the absolute path of the upload directory
-            abspath: str = os.path.join(os.path.abspath(config['UploadDir']), 'thumbnails/users/')
-            # Derive the individual paths
-            default: str = os.path.join(abspath, 'default.png')
-            userimg: str = os.path.join(abspath, f'{newuser.id}.png')
-            # Copy the default image, if it exists
-            if os.path.exists(default):
-                copyfile(default, userimg, follow_symlinks=True)
-
         # The user requested to create a new product
         elif change == 'newproduct':
             # Only create a new product if all required properties of the product are present in the request arguments
@@ -130,17 +119,6 @@ def handle_change(args: FormsDict, files: FormsDict, db: MatematDatabase):
                 except OSError as e:
                     Notification.error(str(e), decay=True)
                     return
-            else:
-                # If no image was uploaded and a default avatar is set, copy it to the product's avatar path
-
-                # Create the absolute path of the upload directory
-                abspath: str = os.path.join(os.path.abspath(config['UploadDir']), 'thumbnails/products/')
-                # Derive the individual paths
-                default: str = os.path.join(abspath, 'default.png')
-                userimg: str = os.path.join(abspath, f'{newproduct.id}.png')
-                # Copy the default image, if it exists
-                if os.path.exists(default):
-                    copyfile(default, userimg, follow_symlinks=True)
 
         # The user requested to restock a product
         elif change == 'restock':

matemat/webserver/pagelets/signup.py

@@ -48,16 +48,7 @@ def signup_user(args: FormsDict, files: FormsDict, db: MatematDatabase) -> User:
             image.thumbnail((150, 150), Image.LANCZOS)
             # Write the image to the file
             image.save(os.path.join(abspath, f'{new_user.id}.png'), 'PNG')
-    else:
+
-        # If a default avatar is set, copy it to the user's avatar path
-        # Create the absolute path of the upload directory
-        abspath: str = os.path.join(os.path.abspath(config['UploadDir']), 'thumbnails/users/')
-        # Derive the individual paths
-        default: str = os.path.join(abspath, 'default.png')
-        userimg: str = os.path.join(abspath, f'{new_user.id}.png')
-        # Copy the default image, if it exists
-        if os.path.exists(default):
-            copyfile(default, userimg, follow_symlinks=True)
     return new_user
 
 

templates/admin.html

@@ -134,7 +134,7 @@
 
 	  <div class="col-sm-2 g-4">
 	    <div class="card h-100">
-	      <img class="card-img-top" src="/static/upload/thumbnails/users/default.png" alt="Default user avatar" />
+	      <img class="card-img-top" src="/static/upload/thumbnails/users/default.png?cacheBuster={{ now }}" alt="Default user avatar" />
 	      <div class="card-body">
 		<label class="card-title" for="admin-default-images-user">Default user avatar</label>
 		<div class="card-text">
@@ -146,7 +146,7 @@
 
 	  <div class="col-sm-2 g-4">
 	    <div class="card h-100">
-	      <img class="card-img-top" src="/static/upload/thumbnails/product/default.png" alt="Default product image" />
+	      <img class="card-img-top" src="/static/upload/thumbnails/products/default.png?cacheBuster={{ now }}" alt="Default product image" />
 	      <div class="card-body">
 		<label class="card-title" for="admin-default-images-product">Default product image</label>
 		<div class="card-text">