From d5ee99c45083decbb9a8d4b2e29f38d7bb73dc2f Mon Sep 17 00:00:00 2001
From: Erwin Douna <e.douna@gmail.com>
Date: Mon, 16 Mar 2026 17:50:51 +0100
Subject: [PATCH] Proxmox re-use sanitize UserID (#164303)

---
 homeassistant/components/proxmoxve/common.py  | 16 ++++++++++++++++
 .../components/proxmoxve/config_flow.py       | 12 ++----------
 .../components/proxmoxve/coordinator.py       | 19 ++++---------------
 3 files changed, 22 insertions(+), 25 deletions(-)
 create mode 100644 homeassistant/components/proxmoxve/common.py

diff --git a/homeassistant/components/proxmoxve/common.py b/homeassistant/components/proxmoxve/common.py
new file mode 100644
index 00000000000..59203ce1e60
--- /dev/null
+++ b/homeassistant/components/proxmoxve/common.py
@@ -0,0 +1,16 @@
+"""Common methods for Proxmox VE integration."""
+
+from typing import Any
+
+from homeassistant.const import CONF_USERNAME
+
+from .const import CONF_REALM
+
+
+def sanitize_userid(data: dict[str, Any]) -> str:
+    """Sanitize the user ID."""
+    return (
+        data[CONF_USERNAME]
+        if "@" in data[CONF_USERNAME]
+        else f"{data[CONF_USERNAME]}@{data[CONF_REALM]}"
+    )
diff --git a/homeassistant/components/proxmoxve/config_flow.py b/homeassistant/components/proxmoxve/config_flow.py
index 8a16b64e58e..369cd96e731 100644
--- a/homeassistant/components/proxmoxve/config_flow.py
+++ b/homeassistant/components/proxmoxve/config_flow.py
@@ -23,6 +23,7 @@ from homeassistant.const import (
 from homeassistant.exceptions import HomeAssistantError
 from homeassistant.helpers import config_validation as cv
 
+from .common import sanitize_userid
 from .const import (
     CONF_CONTAINERS,
     CONF_NODE,
@@ -48,22 +49,13 @@ CONFIG_SCHEMA = vol.Schema(
 )
 
 
-def _sanitize_userid(data: dict[str, Any]) -> str:
-    """Sanitize the user ID."""
-    return (
-        data[CONF_USERNAME]
-        if "@" in data[CONF_USERNAME]
-        else f"{data[CONF_USERNAME]}@{data[CONF_REALM]}"
-    )
-
-
 def _get_nodes_data(data: dict[str, Any]) -> list[dict[str, Any]]:
     """Validate the user input and fetch data (sync, for executor)."""
     try:
         client = ProxmoxAPI(
             data[CONF_HOST],
             port=data[CONF_PORT],
-            user=_sanitize_userid(data),
+            user=sanitize_userid(data),
             password=data[CONF_PASSWORD],
             verify_ssl=data.get(CONF_VERIFY_SSL, DEFAULT_VERIFY_SSL),
         )
diff --git a/homeassistant/components/proxmoxve/coordinator.py b/homeassistant/components/proxmoxve/coordinator.py
index 12036ff4329..b73b244667c 100644
--- a/homeassistant/components/proxmoxve/coordinator.py
+++ b/homeassistant/components/proxmoxve/coordinator.py
@@ -14,13 +14,7 @@ import requests
 from requests.exceptions import ConnectTimeout, SSLError
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import (
-    CONF_HOST,
-    CONF_PASSWORD,
-    CONF_PORT,
-    CONF_USERNAME,
-    CONF_VERIFY_SSL,
-)
+from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_PORT, CONF_VERIFY_SSL
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import (
     ConfigEntryAuthFailed,
@@ -29,7 +23,8 @@ from homeassistant.exceptions import (
 )
 from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
 
-from .const import CONF_NODE, CONF_REALM, DEFAULT_VERIFY_SSL, DOMAIN
+from .common import sanitize_userid
+from .const import CONF_NODE, DEFAULT_VERIFY_SSL, DOMAIN
 
 type ProxmoxConfigEntry = ConfigEntry[ProxmoxCoordinator]
 
@@ -177,16 +172,10 @@ class ProxmoxCoordinator(DataUpdateCoordinator[dict[str, ProxmoxNodeData]]):
 
     def _init_proxmox(self) -> None:
         """Initialize ProxmoxAPI instance."""
-        user_id = (
-            self.config_entry.data[CONF_USERNAME]
-            if "@" in self.config_entry.data[CONF_USERNAME]
-            else f"{self.config_entry.data[CONF_USERNAME]}@{self.config_entry.data[CONF_REALM]}"
-        )
-
         self.proxmox = ProxmoxAPI(
             host=self.config_entry.data[CONF_HOST],
             port=self.config_entry.data[CONF_PORT],
-            user=user_id,
+            user=sanitize_userid(dict(self.config_entry.data)),
             password=self.config_entry.data[CONF_PASSWORD],
             verify_ssl=self.config_entry.data.get(CONF_VERIFY_SSL, DEFAULT_VERIFY_SSL),
         )