From ca3fd9a3ffaaf61362f882c08757cde886b5774a Mon Sep 17 00:00:00 2001
From: Peter Bieringer <pb@bieringer.de>
Date: Mon, 1 Sep 2025 20:31:23 +0200
Subject: [PATCH] Improve: user/group retrievement for running service and
 directories

---
 radicale/pathutils.py | 37 ++++++++++++++++++++++++++++++-------
 radicale/utils.py     | 42 +++++++++++++++++++++++++++++++++---------
 2 files changed, 63 insertions(+), 16 deletions(-)

diff --git a/radicale/pathutils.py b/radicale/pathutils.py
index 8ee25b4e..e4e65928 100644
--- a/radicale/pathutils.py
+++ b/radicale/pathutils.py
@@ -31,7 +31,7 @@ import threading
 from tempfile import TemporaryDirectory
 from typing import Iterator, Type, Union
 
-from radicale import storage, types
+from radicale import storage, types, utils
 
 if sys.platform == "win32":
     import ctypes
@@ -320,13 +320,36 @@ def name_from_path(path: str, collection: "storage.BaseCollection") -> str:
 
 def path_permissions(path):
     path = pathlib.Path(path)
-    return [path.owner(), path.group(), path.stat().st_mode]
+
+    try:
+        uid = utils.unknown_if_empty(path.stat().st_uid)
+    except (KeyError, NotImplementedError):
+        uid = "UNKNOWN"
+
+    try:
+        gid = utils.unknown_if_empty(path.stat().st_gid)
+    except (KeyError, NotImplementedError):
+        gid = "UNKNOWN"
+
+    try:
+        mode = utils.unknown_if_empty("%o" % path.stat().st_mode)
+    except (KeyError, NotImplementedError):
+        mode = "UNKNOWN"
+
+    try:
+        owner = utils.unknown_if_empty(path.owner())
+    except (KeyError, NotImplementedError):
+        owner = "UNKNOWN"
+
+    try:
+        group = utils.unknown_if_empty(path.group())
+    except (KeyError, NotImplementedError):
+        group = "UNKNOWN"
+
+    return [owner, uid, group, gid, mode]
 
 
 def path_permissions_as_string(path):
-    try:
-        pp = path_permissions(path)
-        s = "path=%r owner=%s group=%s mode=%o" % (path, pp[0], pp[1], pp[2])
-    except (KeyError, NotImplementedError):
-        s = "path=%r owner=UNKNOWN(unsupported on this system)" % (path)
+    pp = path_permissions(path)
+    s = "path=%r owner=%s(%s) group=%s(%s) mode=%s" % (path, pp[0], pp[1], pp[2], pp[3], pp[4])
     return s
diff --git a/radicale/utils.py b/radicale/utils.py
index 096864b6..ed6c4ab2 100644
--- a/radicale/utils.py
+++ b/radicale/utils.py
@@ -226,25 +226,49 @@ def ssl_get_protocols(context):
     return protocols
 
 
+def unknown_if_empty(value):
+    if value == "":
+        return "UNKNOWN"
+    else:
+        return value
+
+
 def user_groups_as_string():
     if sys.platform != "win32":
         euid = os.geteuid()
-        egid = os.getegid()
         try:
             username = pwd.getpwuid(euid)[0]
+            user = "%s(%d)" % (unknown_if_empty(username), euid)
         except Exception:
             # name of user not found
-            s = "user=(%d) group=(%d)" % (euid, egid)
-            return s
-        gids = os.getgrouplist(username, egid)
+            user = "UNKNOWN(%d)" % euid
+
+        egid = os.getegid()
         groups = []
-        for gid in gids:
+        try:
+            gids = os.getgrouplist(username, egid)
+            for gid in gids:
+                try:
+                    gi = grp.getgrgid(gid)
+                    groups.append("%s(%d)" % (unknown_if_empty(gi.gr_name), gid))
+                except Exception:
+                    groups.append("UNKNOWN(%d)" % gid)
+        except Exception:
             try:
-                gi = grp.getgrgid(gid)
-                groups.append("%s(%d)" % (gi.gr_name, gid))
+                groups.append("%s(%d)" % (grp.getgrnam(egid)[0], egid))
             except Exception:
-                groups.append("%s(%d)" % (gid, gid))
-        s = "user=%s(%d) groups=%s" % (username, euid, ','.join(groups))
+                # workaround to get groupid by name
+                groups_all = grp.getgrall()
+                found = False
+                for entry in groups_all:
+                    if entry[2] == egid:
+                        groups.append("%s(%d)" % (unknown_if_empty(entry[0]), egid))
+                        found = True
+                        break
+                if not found:
+                    groups.append("UNKNOWN(%d)" % egid)
+
+        s = "user=%s groups=%s" % (user, ','.join(groups))
     else:
         username = os.getlogin()
         s = "user=%s" % (username)