Support wildcard mimes in filepicker workaround too

We've seen it in the wild, so it could happen, and it wasn't hard to add
in the end.

ref: #7866

2 files changed, 24 insertions, 5 deletions

diff --git a/qutebrowser/browser/webengine/webview.py b/qutebrowser/browser/webengine/webview.py
index 4fb48c060..61f64724d 100644
--- a/qutebrowser/browser/webengine/webview.py
+++ b/qutebrowser/browser/webengine/webview.py
@@ -276,7 +276,16 @@ class WebEnginePage(QWebEnginePage):
         mimes = {entry for entry in upstream_mimetypes if "/" in entry}
         python_suffixes = set()
         for mime in mimes:
-            python_suffixes.update(mimetypes.guess_all_extensions(mime))
+            if mime.endswith("/*"):
+                python_suffixes.update(
+                    [
+                        suffix
+                        for suffix, mimetype in mimetypes.types_map.items()
+                        if mimetype.startswith(mime[:-1])
+                    ]
+                )
+            else:
+                python_suffixes.update(mimetypes.guess_all_extensions(mime))
         return python_suffixes - suffixes
 
     def chooseFiles(
diff --git a/tests/unit/browser/webengine/test_webview.py b/tests/unit/browser/webengine/test_webview.py
index b213713e2..2789dcc9f 100644
--- a/tests/unit/browser/webengine/test_webview.py
+++ b/tests/unit/browser/webengine/test_webview.py
@@ -65,14 +65,22 @@ def test_enum_mappings(enum_type, naming, mapping):
 
 @pytest.fixture
 def suffix_mocks(monkeypatch):
+    types_map = {
+        ".jpg": "image/jpeg",
+        ".jpe": "image/jpeg",
+        ".png": "image/png",
+        ".m4v": "video/mp4",
+        ".mpg4": "video/mp4",
+    }
+    mimetypes_map = {}  # mimetype -> [suffixes] map
+    for suffix, mime in types_map.items():
+        mimetypes_map[mime] = mimetypes_map.get(mime, []) + [suffix]
+
     def guess(mime):
-        mimetypes_map = {
-            "image/jpeg": [".jpg", ".jpe"],
-            "video/mp4": [".m4v", ".mpg4"],
-        }
         return mimetypes_map.get(mime, [])
 
     monkeypatch.setattr(mimetypes, "guess_all_extensions", guess)
+    monkeypatch.setattr(mimetypes, "types_map", types_map)
 
     def version(string):
         if string == "6.2.3":
@@ -95,6 +103,8 @@ EXTRA_SUFFIXES_PARAMS = [
         set(),
     ),  # not sure why black reformats this one and not the others
     (["image/jpeg", "video/mp4"], {".jpg", ".jpe", ".m4v", ".mpg4"}),
+    (["image/*"], {".jpg", ".jpe", ".png"}),
+    (["image/*", ".jpg"], {".jpe", ".png"}),
 ]