Counter latest result page style changes

Google updated their styling of the result page, which broke some
components of Whoogle's result page styling (namely the result div
backgrounds for dark mode).

The GClasses class has been updated to keep track of what class names
have been updated to, and roll them back to a value that works for
Whoogle. A function was added that loops through new class names and
replaces them with their older counterparts.

app/filter.py

@@ -1,18 +1,13 @@
-from app.models.config import Config
+import cssutils
-from app.models.endpoint import Endpoint
+from bs4 import BeautifulSoup
+from bs4.element import ResultSet, Tag
+from cryptography.fernet import Fernet
+from flask import render_template
+
 from app.models.g_classes import GClasses
 from app.request import VALID_PARAMS, MAPS_URL
 from app.utils.misc import get_abs_url, read_config_bool
 from app.utils.results import *
-from bs4 import BeautifulSoup
-from bs4.element import ResultSet, Tag
-from cryptography.fernet import Fernet
-import cssutils
-from flask import render_template
-import re
-import urllib.parse as urlparse
-from urllib.parse import parse_qs
-import os
 
 minimal_mode_sections = ['Top stories', 'Images', 'People also ask']
 unsupported_g_pages = [
@@ -359,6 +354,9 @@ class Filter:
             # print(link)
 
     def update_styling(self, soup) -> None:
+        # Update CSS classes for result divs
+        soup = GClasses.replace_css_classes(soup)
+
         # Remove unnecessary button(s)
         for button in soup.find_all('button'):
             button.decompose()

app/models/g_classes.py

@@ -1,7 +1,7 @@
-from enum import Enum
+from bs4 import BeautifulSoup
 
 
-class GClasses(Enum):
+class GClasses:
     """A class for tracking obfuscated class names used in Google results that
     are directly referenced in Whoogle's filtering code.
 
@@ -12,6 +12,35 @@ class GClasses(Enum):
     main_tbm_tab = 'KP7LCb'
     images_tbm_tab = 'n692Zd'
     footer = 'TuS8Ad'
+    result_class_a = 'ZINbbc'
+    result_class_b = 'luh4td'
+
+    result_classes = {
+        result_class_a: ['Gx5Zad'],
+        result_class_b: ['fP1Qef']
+    }
+
+    @classmethod
+    def replace_css_classes(cls, soup: BeautifulSoup) -> BeautifulSoup:
+        """Replace updated Google classes with the original class names that
+        Whoogle relies on for styling.
+
+        Args:
+            soup: The result page as a BeautifulSoup object
+
+        Returns:
+            BeautifulSoup: The new BeautifulSoup
+        """
+        result_divs = soup.find_all('div', {
+            'class': [_ for c in cls.result_classes.values() for _ in c]
+        })
+
+        for div in result_divs:
+            new_class = ' '.join(div['class'])
+            for key, val in cls.result_classes.items():
+                new_class = ' '.join(new_class.replace(_, key) for _ in val)
+            div['class'] = new_class.split(' ')
+        return soup
 
     def __str__(self):
         return self.value

app/static/css/dark-theme.css

@@ -66,6 +66,8 @@ select {
     overflow: hidden;
     box-shadow: 0 0 0 0 !important;
     background-color: var(--whoogle-dark-result-bg) !important;
+    margin-bottom: 10px !important;
+    border-radius: 8px !important;
 }
 
 .KP7LCb {

app/static/css/light-theme.css

@@ -40,6 +40,8 @@ select {
 .ZINbbc {
     overflow: hidden;
     background-color: var(--whoogle-result-bg) !important;
+    margin-bottom: 10px !important;
+    border-radius: 8px !important;
 }
 
 .BVG0Nb {