driver/power/secomp: add support for Secomp PDUs

This PDU is sold and rebranded under various names, such as
LogiLink PDU8P01 or Secomp 8016.

This is a rather generic 19" PDU, tested was the 8-port version.
It takes HTTP(s) with username and password; '0' turns a
particular outlet to "on"; confirms by "applied".

Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>

Author: Rubusch

labgrid/driver/power/secomp.py

@@ -0,0 +1,69 @@
+"""
+This driver was tested on the model: LogiLink PDU8P01
+but should be working on all similar devices implementing this SECOMP chip.
+
+The driver is pretty simply and generic, it requires http(s), needs provided
+authentication and uses a '0' for on.
+"""
+import requests
+import xml.etree.ElementTree as ET
+from urllib.parse import urlparse
+from ..exception import ExecutionError
+
+def _send_request(host, url_path, params=None):
+    """
+    Helper to handle host string which might have credentials stripped
+    or scheme changed
+    """
+    if not host.startswith('http'):
+        host = f"http://{host}"
+    parsed = urlparse(host)
+
+    base_url = f"{parsed.scheme}://{parsed.netloc.split('@')[-1]}"
+    full_url = f"{base_url}/{url_path}"
+
+    auth = None
+    if parsed.username and parsed.password:
+        auth = (parsed.username, parsed.password)
+
+    try:
+        response = requests.get(full_url, params=params, auth=auth, timeout=10)
+        if response.status_code == 401:
+            raise ExecutionError(f"Secomp: Authentication failed (401) for {full_url}. Check YAML credentials.")
+        response.raise_for_status()
+        return response
+    except requests.exceptions.RequestException as e:
+        raise ExecutionError(f"Secomp: HTTP Request failed: {e}")
+
+def power_set(host, port, index, value):
+    """
+    host: the IP or URL
+    port: the TCP port (usually 80)
+    index: the outlet number (1-8)
+    value: True (ON) or False (OFF)
+    """
+    # Secomp 0816 logic: 0 is ON, 1 is OFF
+    action_code = 0 if value else 1
+    params = {
+        f"outlet{int(index)-1}": 1,
+        "op": action_code,
+        "submit": "Apply"
+    }
+
+    try:
+        response = _send_request(host, "control_outlet.htm", params=params)
+        if "Apply" not in response.text:
+            raise ExecutionError(f"Secomp: PDU failed to set port {index}")
+    except requests.exceptions.RequestException as e:
+        raise ExecutionError(f"Secomp: HTTP Request failed: {e}")
+
+def power_get(host, port, index):
+    response = _send_request(host, "status.xml")
+    try:
+        xml = ET.fromstring(response.content)
+        outlet_node = xml.find(f'outletStat{int(index)-1}')
+        if outlet_node is None:
+            raise ExecutionError(f"Secomp: Could not find status for port {index}")
+        return outlet_node.text.lower() == "on"
+    except Exception as e:
+        raise ExecutionError(f"Secomp: Failed to get status: {e}")