Fragment in Activity ID prevents it from being resolvable

[mike182uk]

Whilst working with this plugin I was encountering an issue where I wanted to do a look up on an Activity sent to me by wordpress-activitypub, but the structure of URL makes this impossible due to a fragment being included in the ID (URL) for the Activity - The fragment gets stripped out before reaching the server so the request ends up being for the Object inside the Activity rather than the Activity itself

Example:

I receive Activity with ID: https://mattwiebe.blog/?p=370#activity-create-2024-11-27T15:30:10Z which looks like:

{
  "id": "https://mattwiebe.blog/?p=370#activity-create-2024-11-27T15:30:10Z",
  "type": "Create",
  "published": "2024-11-27T15:30:10Z",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "cc": [
    "https://public-api.wordpress.com/wpcom/activitypub-1.0/sites/219408313/actors/0/followers"
  ],
  "sensitive": false,
  "object": {
    "id": "https://mattwiebe.blog/?p=370",
    "type": "Note",
    "attachment": [],
    "attributedTo": "https://mattwiebe.blog/@mattwiebe.blog",
    "content": "<h2>ActivityPub Office Hours Day&nbsp;3</h2><p>Starting now!</p><p><a href=\"https://us02web.zoom.us/j/89230934907?pwd=9jPyy8IYhKeKjGf3qTWrzJ92Ta54Hr.1\">https://us02web.zoom.us/j/89230934907?pwd=9jPyy8IYhKeKjGf3qTWrzJ92Ta54Hr.1</a></p>",
    "contentMap": {
      "en": "<h2>ActivityPub Office Hours Day&nbsp;3</h2><p>Starting now!</p><p><a href=\"https://us02web.zoom.us/j/89230934907?pwd=9jPyy8IYhKeKjGf3qTWrzJ92Ta54Hr.1\">https://us02web.zoom.us/j/89230934907?pwd=9jPyy8IYhKeKjGf3qTWrzJ92Ta54Hr.1</a></p>"
    },
    "published": "2024-11-27T15:30:10Z",
    "tag": [],
    "url": "https://mattwiebe.blog/2024/11/27/activitypub-office-hours-day-3/",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public"
    ],
    "cc": [
      "https://public-api.wordpress.com/wpcom/activitypub-1.0/sites/219408313/actors/0/followers"
    ],
    "replies": {
      "id": "https://public-api.wordpress.com/wpcom/activitypub-1.0/sites/219408313/posts/370/replies",
      "type": "Collection",
      "first": {
        "id": "https://public-api.wordpress.com/wpcom/activitypub-1.0/sites/219408313/posts/370/replies?page=0",
        "type": "CollectionPage",
        "partOf": "https://public-api.wordpress.com/wpcom/activitypub-1.0/sites/219408313/posts/370/replies",
        "items": []
      }
    },
    "sensitive": false
  },
  "actor": "https://mattwiebe.blog/@mattwiebe.blog"
}

When I make a request to https://mattwiebe.blog/?p=370#activity-create-2024-11-27T15:30:10Z to retrieve the Create activity again, I get back the Note contained within the Activity:

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "id": "https://mattwiebe.blog/?p=370",
  "type": "Note",
  "attachment": [],
  "attributedTo": "https://mattwiebe.blog/@mattwiebe.blog",
  "content": "<h2>ActivityPub Office Hours Day&nbsp;3</h2><p>Starting now!</p><p><a href=\"https://us02web.zoom.us/j/89230934907?pwd=9jPyy8IYhKeKjGf3qTWrzJ92Ta54Hr.1\">https://us02web.zoom.us/j/89230934907?pwd=9jPyy8IYhKeKjGf3qTWrzJ92Ta54Hr.1</a></p>",
  "contentMap": {
    "en": "<h2>ActivityPub Office Hours Day&nbsp;3</h2><p>Starting now!</p><p><a href=\"https://us02web.zoom.us/j/89230934907?pwd=9jPyy8IYhKeKjGf3qTWrzJ92Ta54Hr.1\">https://us02web.zoom.us/j/89230934907?pwd=9jPyy8IYhKeKjGf3qTWrzJ92Ta54Hr.1</a></p>"
  },
  "published": "2024-11-27T15:30:10Z",
  "tag": [],
  "url": "https://mattwiebe.blog/2024/11/27/activitypub-office-hours-day-3/",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "cc": [
    "https://public-api.wordpress.com/wpcom/activitypub-1.0/sites/219408313/actors/0/followers"
  ],
  "replies": {
    "id": "https://public-api.wordpress.com/wpcom/activitypub-1.0/sites/219408313/posts/370/replies",
    "type": "Collection",
    "first": {
      "id": "https://public-api.wordpress.com/wpcom/activitypub-1.0/sites/219408313/posts/370/replies?page=0",
      "type": "CollectionPage",
      "partOf": "https://public-api.wordpress.com/wpcom/activitypub-1.0/sites/219408313/posts/370/replies",
      "items": []
    }
  },
  "sensitive": false
}

[pfefferle]

Hey @mike182uk The plugin does not provide resolvable Activity-IDs (yet, this will come in one of the next updates). The fragment is currently only a hack, to have a unique ID.

However, we can change these IDs so that a correct error code is returned.

[obenland]

However, we can change these IDs so that a correct error code is returned.

@pfefferle Could I ask for some guidance on direction for this? Happy to take a stab at it

[pfefferle]

@obenland we do not persist activities yet, so there is no id we can use. This will be possible when we have the outbox.