From d050096bbbf4922f025a6e9320edc40b0d8fac67 Mon Sep 17 00:00:00 2001
From: Peter Bieringer <pb@bieringer.de>
Date: Sun, 20 Jul 2025 12:46:55 +0200
Subject: [PATCH 1/3] fix for https://github.com/Kozea/Radicale/issues/1826

---
 radicale/utils.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/radicale/utils.py b/radicale/utils.py
index b5b42694..6062bd63 100644
--- a/radicale/utils.py
+++ b/radicale/utils.py
@@ -225,7 +225,12 @@ def user_groups_as_string():
     if sys.platform != "win32":
         euid = os.geteuid()
         egid = os.getegid()
-        username = pwd.getpwuid(euid)[0]
+        try:
+            username = pwd.getpwuid(euid)[0]
+        except:
+            # name of user not found
+            s = "user=(%d) group=(%d)" % (euid, egid)
+            return s
         gids = os.getgrouplist(username, egid)
         groups = []
         for gid in gids:

From 5fea367103b8f6d3b843eee6744c6926ac435587 Mon Sep 17 00:00:00 2001
From: Peter Bieringer <pb@bieringer.de>
Date: Sun, 20 Jul 2025 12:47:03 +0200
Subject: [PATCH 2/3] changelog for fix for
 https://github.com/Kozea/Radicale/issues/1826

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ec1b5eeb..a91f5630 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@
 * Fix: logging ignores not retrievable get_native_id if not supported by OS
 * Fix: report with enabled expand honors now provided filter proper
 * Improve: add options [logging] trace_on_debug and trace_filter for supporting trace logging
+* Fix: catch case where getpwuid is not returning a username
 
 ## 3.5.4
 * Improve: item filter enhanced for 3rd level supporting VALARM and honoring TRIGGER (offset or absolute)

From 8d2a71557a80309556f9930d198a974df8f27807 Mon Sep 17 00:00:00 2001
From: Peter Bieringer <pb@bieringer.de>
Date: Sun, 20 Jul 2025 12:49:53 +0200
Subject: [PATCH 3/3] make flake8 happy

---
 radicale/utils.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/radicale/utils.py b/radicale/utils.py
index 6062bd63..1b5a016c 100644
--- a/radicale/utils.py
+++ b/radicale/utils.py
@@ -227,7 +227,7 @@ def user_groups_as_string():
         egid = os.getegid()
         try:
             username = pwd.getpwuid(euid)[0]
-        except:
+        except Exception:
             # name of user not found
             s = "user=(%d) group=(%d)" % (euid, egid)
             return s