[IMP] hw_drivers: Easier detection of new devices

Until now, to detect new types of devices on the IoT Box, we had to
modify driver.py. If partners wanted to connect a new type of device,
they had to modify directly the files on the Box, meaning that after
each new build they had to re-apply all their modifications.

We remove the loops that detected the connected devices and replace
them by `Interfaces`. All interfaces will be loaded from the connected
Odoo instance with the corresponding drivers.

TaskID: 2082282

1 files changed, 30 insertions, 0 deletions

diff --git a/addons/hw_drivers/iot_handlers/interfaces/PrinterInterface.py b/addons/hw_drivers/iot_handlers/interfaces/PrinterInterface.py
new file mode 100644
index 00000000000..ec596a60dce
--- /dev/null
+++ b/addons/hw_drivers/iot_handlers/interfaces/PrinterInterface.py
@@ -0,0 +1,30 @@
+from cups import Connection as cups_connection
+from re import sub
+from threading import Lock
+
+from odoo.addons.hw_drivers.controllers.driver import Interface
+
+conn = cups_connection()
+PPDs = conn.getPPDs()
+printers = conn.getPrinters()
+cups_lock = Lock()  # We can only make one call to Cups at a time
+
+class PrinterInterface(Interface):
+    _loop_delay = 120
+    connection_type = 'printer'
+
+    def get_devices(self):
+        printer_devices = {}
+        with cups_lock:
+            devices = conn.getDevices()
+        for path in devices:
+            if 'uuid=' in path:
+                identifier = sub('[^a-zA-Z0-9 ]+', '', path.split('uuid=')[1])
+            elif 'serial=' in path:
+                identifier = sub('[^a-zA-Z0-9 ]+', '', path.split('serial=')[1])
+            else:
+                identifier = sub('[^a-zA-Z0-9 ]+', '', path)
+            devices[path]['identifier'] = identifier
+            devices[path]['url'] = path
+            printer_devices[identifier] = devices[path]
+        return printer_devices