Add nfandroidtv type checking and allow for strings to be passed to the image and icon data (#108652)

* nfandroidtv - add type checking and allow for strings to be passed to the image and icon data

* nfandroidtv - wrong argument name

* nfandroidtv - put the icon in the wrong varible 🙃

* nfandroidtv - raise ServiceValidationError instead of logging

---------

Co-authored-by: nyangogo <7449028+ioangogo@users.noreply.github.com>

homeassistant/components/nfandroidtv/notify.py

@@ -19,6 +19,7 @@ from homeassistant.components.notify import (
 )
 from homeassistant.const import CONF_HOST
 from homeassistant.core import HomeAssistant
+from homeassistant.exceptions import ServiceValidationError
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
@@ -44,6 +45,7 @@ from .const import (
     ATTR_POSITION,
     ATTR_TRANSPARENCY,
     DEFAULT_TIMEOUT,
+    DOMAIN,
 )
 
 _LOGGER = logging.getLogger(__name__)
@@ -133,6 +135,13 @@ class NFAndroidTVNotificationService(BaseNotificationService):
                         "Invalid interrupt-value: %s", data.get(ATTR_INTERRUPT)
                     )
             if imagedata := data.get(ATTR_IMAGE):
+                if isinstance(imagedata, str):
+                    image_file = (
+                        self.load_file(url=imagedata)
+                        if imagedata.startswith("http")
+                        else self.load_file(local_path=imagedata)
+                    )
+                elif isinstance(imagedata, dict):
                     image_file = self.load_file(
                         url=imagedata.get(ATTR_IMAGE_URL),
                         local_path=imagedata.get(ATTR_IMAGE_PATH),
@@ -140,7 +149,21 @@ class NFAndroidTVNotificationService(BaseNotificationService):
                         password=imagedata.get(ATTR_IMAGE_PASSWORD),
                         auth=imagedata.get(ATTR_IMAGE_AUTH),
                     )
+                else:
+                    raise ServiceValidationError(
+                        "Invalid image provided",
+                        translation_domain=DOMAIN,
+                        translation_key="invalid_notification_image",
+                        translation_placeholders={"type": type(imagedata).__name__},
+                    )
             if icondata := data.get(ATTR_ICON):
+                if isinstance(icondata, str):
+                    icondata = (
+                        self.load_file(url=icondata)
+                        if icondata.startswith("http")
+                        else self.load_file(local_path=icondata)
+                    )
+                elif isinstance(icondata, dict):
                     icon = self.load_file(
                         url=icondata.get(ATTR_ICON_URL),
                         local_path=icondata.get(ATTR_ICON_PATH),
@@ -148,6 +171,13 @@ class NFAndroidTVNotificationService(BaseNotificationService):
                         password=icondata.get(ATTR_ICON_PASSWORD),
                         auth=icondata.get(ATTR_ICON_AUTH),
                     )
+                else:
+                    raise ServiceValidationError(
+                        "Invalid Icon provided",
+                        translation_domain=DOMAIN,
+                        translation_key="invalid_notification_icon",
+                        translation_placeholders={"type": type(icondata).__name__},
+                    )
         self.notify.send(
             message,
             title=title,

homeassistant/components/nfandroidtv/strings.json

@@ -1,4 +1,12 @@
 {
+  "exceptions": {
+    "invalid_notification_icon": {
+      "message": "Invalid icon data provided. Got {type}"
+    },
+    "invalid_notification_image": {
+      "message": "Invalid image data provided. Got {type}"
+    }
+  },
   "config": {
     "step": {
       "user": {