Add domain-wide blacklist and whitelist functionality

tests/test_blacklist.py

@@ -203,3 +203,33 @@ def test_regex_should_be_skipped() -> None:
     )
     reader.delete_tag(feed, "regex_blacklist_author")
     assert entry_should_be_skipped(reader, first_entry[0]) is False, f"Entry should not be skipped: {first_entry[0]}"
+
+
+def test_domain_blacklist_should_be_skipped() -> None:
+    """Domain-wide blacklist should apply to feeds on the same domain."""
+    reader: Reader = get_reader()
+
+    reader.add_feed(feed_url)
+    feed: Feed = reader.get_feed(feed_url)
+    reader.update_feeds()
+
+    entries: Iterable[Entry] = reader.get_entries(feed=feed)
+    first_entry: Entry | None = next(iter(entries), None)
+    assert first_entry is not None, "Expected at least one entry"
+
+    assert feed_has_blacklist_tags(reader, feed) is False, "Feed should not have blacklist tags"
+    assert entry_should_be_skipped(reader, first_entry) is False, "Entry should not be skipped"
+
+    reader.set_tag(
+        (),
+        "domain_blacklist",
+        {
+            "lovinator.space": {
+                "blacklist_author": "TheLovinator",
+                "regex_blacklist_title": r"fvnnn\\w+",
+            },
+        },
+    )  # pyright: ignore[reportArgumentType]
+
+    assert feed_has_blacklist_tags(reader, feed) is True, "Domain blacklist should count as blacklist tags"
+    assert entry_should_be_skipped(reader, first_entry) is True, "Entry should be skipped by domain blacklist"