fix(whmcs-status): handle null correctly in whmcs api response

CHANGELOG.md

@@ -105,6 +105,7 @@ Monitoring Plugins:
 * apache-httpd.status: failure when mod_md is enabled ([#783](https://github.com/Linuxfabrik/monitoring-plugins/issues/783))
 * docker-stats: ValueError: could not convert string to float: '0B' ([#776](https://github.com/Linuxfabrik/monitoring-plugins/issues/776))
 * redfish-sel: UnboundLocalError: local variable 'sel_path' referenced before assignment ([#779](https://github.com/Linuxfabrik/monitoring-plugins/issues/779))
+* whmcs-status: handle null correctly in whmcs api response ([#820](https://github.com/Linuxfabrik/monitoring-plugins/pull/820))
 
 
 ## 2024060401

check-plugins/whmcs-status/unit-test/stdout/EXAMPLE02

@@ -170,6 +170,8 @@
         "severityLevel": "info",
         "body": "<p>Your PHP version <strong>8.1.31</strong> is supported by WHMCS. </p><p>Your PHP version does not receive regular updates but is the latest supported by WHMCS.</p>"
       }
-    ]
+    ],
+    "warning": null,
+    "danger": null
   }
 }

check-plugins/whmcs-status/unit-test/stdout/EXAMPLE03

@@ -164,6 +164,8 @@
         "severityLevel": "notice",
         "body": "WHMCS is not running behind a CloudFlare proxy."
       }
-    ]
+    ],
+    "warning": null,
+    "danger": null
   }
 }

check-plugins/whmcs-status/whmcs-status

@@ -24,7 +24,7 @@ import lib.url  # pylint: disable=C0413
 from lib.globals import (STATE_OK, STATE_WARN, STATE_UNKNOWN)  # pylint: disable=C0413
 
 __author__ = 'Linuxfabrik GmbH, Zurich/Switzerland'
-__version__ = '2025011901'
+__version__ = '2025013101'
 
 DESCRIPTION = '''Returns the health status of a WHMCS server using its
                  HTTP-based API.'''
@@ -149,6 +149,8 @@ def get_failed_checks(checks):
     """
     failed_checks = []
     for _, items in checks.get('checks', {}).items():
+        if items is None:
+            continue
         for item in items:
             if item.get('severityLevel') == 'notice':
                 continue