mirror of
https://github.com/superseriousbusiness/gotosocial
synced 2024-12-11 08:06:46 +01:00
110 lines
4.1 KiB
Markdown
110 lines
4.1 KiB
Markdown
# Reports / Flag Activity Federation
|
|
|
|
This document contains design notes for GoToSocial's federated (s2s) Flag functionality.
|
|
|
|
## What do existing implementations do?
|
|
|
|
Information below is true as of Jan 2023. If you're reading this much later, the below things may no longer apply.
|
|
|
|
### Mastodon
|
|
|
|
Mastodon uses the Flag activity to federate reports to other AP servers.
|
|
|
|
The Activity is wrapped inside a Create, which is addressed To the Inbox of the offending account.
|
|
|
|
To preserve anonymity of the reporter, the instance Actor is used as the Actor of the Activity.
|
|
|
|
Examples of the unwrapped Flag:
|
|
|
|
```json
|
|
{
|
|
"@context": "https://www.w3.org/ns/activitystreams",
|
|
"actor": "https://example.org/actor",
|
|
"content": "misinfo: it's not a good morning",
|
|
"id": "https://example.org/341e866f-93f8-4755-9cf4-f8fb17f434fd",
|
|
"object": [
|
|
"https://bad.instance/users/tobi",
|
|
"https://bad.instance/users/tobi/statuses/01GP388K19DGXSV3SW2RXWM533"
|
|
],
|
|
"type": "Flag"
|
|
}
|
|
```
|
|
|
|
```json
|
|
{
|
|
"@context": "https://www.w3.org/ns/activitystreams",
|
|
"actor": "https://example.org/actor",
|
|
"content": "smellyyyyyyyyyyyyy",
|
|
"id": "https://example.org/3088184f-81b2-4545-8ce2-4cee4895449f",
|
|
"object": "https://bad.instance/users/tobi",
|
|
"type": "Flag"
|
|
}
|
|
```
|
|
|
|
The `content` field contains the report description.
|
|
|
|
The `object` field contains the reported Account URI and optionally one or more Note/Article/etc URIs. `object` value will be a string if just the Account URI is reported, or an array if the Account and one or more posts are being reported.
|
|
|
|
The `id` field is a generic URI that doesn't reveal any metadata. Trying to GET this URI gives a 404 Not Found error, which is OK since all the info needed to process the report is included in the Activity already.
|
|
|
|
### Misskey
|
|
|
|
Misskey uses the Flag activity to federate reports to other AP servers.
|
|
|
|
The Activity is wrapped inside a Create, which is addressed To the Inbox of the offending account.
|
|
|
|
To preserve anonymity of the reporter, the instance Actor is used as the Actor of the Activity.
|
|
|
|
Example of the unwrapped Flag:
|
|
|
|
```json
|
|
{
|
|
"@context": "https://www.w3.org/ns/activitystreams",
|
|
"actor": "https://example.org/users/909i45meeo",
|
|
"content": "Note: https://bad.instance/@tobi/statuses/01GPB56GPJ37JTK9HW308HQKBQ\n-----\nincites anti-police behaviour while being cute! ⛔",
|
|
"id": "https://example.org/db22128d-884e-4358-9935-6a7c3940535d",
|
|
"object": "https://bad.instance/users/tobi",
|
|
"type": "Flag"
|
|
}
|
|
```
|
|
|
|
The `content` field contains the report description. Unlike with Mastodon, `content` also seems to include one or more statuses, as opposed to including statuses in the `object` field.
|
|
|
|
The `object` field contains the reported Account URI.
|
|
|
|
Trying to dereference the `id` field for a Misskey report with `Accept: application/activity+json` gives a 200 OK, but the returned content is some HTML unrelated to the report, so functionally equivalent to Mastodon's 404 behavior. Again, this is not really a problem.
|
|
|
|
### Calckey
|
|
|
|
Same as Misskey. Example:
|
|
|
|
```json
|
|
{
|
|
"@context": "https://www.w3.org/ns/activitystreams",
|
|
"actor": "https://example.org/users/97wsu4gkns",
|
|
"content": "Note: https://bad.instance/@tobi/statuses/01GPB56GPJ37JTK9HW308HQKBQ\n-----\nTest report from Calckey",
|
|
"id": "https://example.org/b9a02404-d007-4b31-8dd6-bfc53387ad85",
|
|
"object": "https://bad.instance/users/tobi",
|
|
"type": "Flag"
|
|
}
|
|
```
|
|
|
|
### Pleroma / Akkoma
|
|
|
|
todo
|
|
|
|
### Friendica
|
|
|
|
Unsure: Friendica and GoToSocial still don't federate properly with one another (https://github.com/superseriousbusiness/gotosocial/issues/169) so it's hard to test this.
|
|
|
|
## What should GoToSocial do?
|
|
|
|
Since the above implementations of Flag seem fairly consistent, GoToSocial should do more or less the same thing when federating reports outwards. So GtS ought to adopt the Mastodon behavior:
|
|
|
|
- Wrap Flag Activity in a Create and deliver it to the offending account.
|
|
- Use the GtS instance Actor as the Actor of the Flag.
|
|
- Generate an ID that doesn't reveal who created the report.
|
|
- Include Actor and one or more Note / Article / etc URIs in the `object` field
|
|
|
|
For incoming reports, all the above fields should be handled in order to generate a report for admins to look at.
|