provide a unifiedpush endpoint for notifications

[butonic]

We currently serve our sse events at https://cloud.opencloud.test/ocs/v2.php/apps/notifications/api/v1/notifications/sse

Since we want to sunset ocs we can maybe move to a more standardized endpoint / payload. I propose https://unifiedpush.org/

ntfy (which adheres to unifiedpush) does support subscribing to events using SSE: https://docs.ntfy.sh/subscribe/api/#subscribe-as-sse-stream which uses a reasonable JSON payload format: https://docs.ntfy.sh/subscribe/api/#json-message-format, eg:

{
    "id": "sPs71M8A2T",
    "time": 1643935928,
    "expires": 1643936928,
    "event": "message",
    "topic": "mytopic",
    "priority": 5,
    "tags": [
        "warning",
        "skull"
    ],
    "click": "https://homecam.mynet.lan/incident/1234",
    "attachment": {
        "name": "camera.jpg",
        "type": "image/png",
        "size": 33848,
        "expires": 1643946728,
        "url": "https://ntfy.sh/file/sPs71M8A2T.png"
    },
    "title": "Unauthorized access detected",
    "message": "Movement detected in the yard. You better go check"
}

related

• https://www.rfc-editor.org/rfc/rfc8030#section-2
• https://unifiedpush.org/news/20250131_push_for_decentralized/

[wrenix]

I will suggestion to use the WebPush https://developer.mozilla.org/en-US/docs/Web/API/Push_API.

And to be valid with UnifiedPush.
PS: There is an UnifiedPush-Provider with is more stable then ntfy.sh and also use the WebPush-Server from mozilla on default - https://codeberg.org/sunup/android