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97 lines
3.5 KiB
Markdown
97 lines
3.5 KiB
Markdown
# Misskey Extensions to ActivityPub
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This page documents the extensions to ActivityPub that Misskey uses. This page lists some context items defined in JSON-LD contexts and explains their semantics.
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This document uses [compact IRIs](https://www.w3.org/TR/json-ld/#dfn-compact-iri).
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The prefix `ap` is used to refer to `https://www.w3.org/ns/activitystreams#`.
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The prefix `misskey` is used to refer to `https://misskey-hub-net/ns#`.
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## `_misskey_content`
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- compact IRI: `misskey:_misskey_content`
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- canonical IRI: `https://misskey-hub.net/ns#_misskey_content`
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:::warning
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This value is deprecated and might be removed in the future.
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See also <https://github.com/misskey-dev/misskey/pull/8787>.
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:::
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This value is identical to having a `source` property like this:
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```js
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source: {
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content: _misskey_content,
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mediaType: "text/x.misskeymarkdown"
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}
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```
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Where `_misskey_content` represents the value of the field described in this section.
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## `_misskey_summary`
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- compact IRI: `misskey:_misskey_summary`
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- canonical IRI: `https://misskey-hub.net/ns#_misskey_summary`
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Used on actors to display their summary as MFM. The content is same as `summary`, but in MFM form.
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## `_misskey_quote`
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- compact IRI: `misskey:_misskey_quote`
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- canonical IRI: `https://misskey-hub.net/ns#_misskey_quote`
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:::tip
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Ways to potentially provide this information using the core ActivityPub vocabulary are currently underway, see <https://github.com/misskey-dev/misskey/issues/8722>.
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:::
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Indicates that this note is quoting another note. It contains the `id` of the note being quoted.
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This seems to be identical to `https://fedibird.com/ns#quoteUri`.
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Misskey also uses `as:quoteUrl` for this but this was not adopted to the ActivityPub specification.
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This is for compatibility with some other ActivityPub programs that operate using this.
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## `_misskey_reaction`
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- compact IRI: `misskey:_misskey_reaction`
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- canonical IRI: `https://misskey-hub.net/ns#_misskey_reaction`
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Misskey federates its reactions as `Like` activities.
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What kind of reaction was used is conveyed using this field.
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Misskey also sets `ap:content` of the `Like` activity to the same value.
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The content will be a string that either contains a single Unicode Emoji or a string that starts and ends with a colon. In the latter case the reaction uses a custom emoji, and the `tag` property will be set to contain the data of the respective emoji.
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## `_misskey_votes`
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- compact IRI: `misskey:_misskey_votes`
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- canonical IRI: `https://misskey-hub.net/ns#_misskey_votes`
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This value is used for `Question` activities to indicate the number of votes an option currently has.
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This value is identical to having a `replies` property like this:
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```js
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replies: {
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type: 'Collection',
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totalItems: _misskey_votes
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}
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```
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Where `_misskey_votes` represents the value of the field described in this section.
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## `_misskey_talk`
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- compact IRI: `misskey:_misskey_talk`
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- canonical IRI: `https://misskey-hub.net/ns#_misskey_talk`
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This value is used for `Note` type objects to indicate that they are a Misskey chat message.
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Misskey handles these kinds of messages specially, e.g. it will apply different audience scoping rules and show them via a different API than usual `Note` objects.
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This field can only take the value of `true` (or be absent).
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## `isCat`
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- compact IRI: `misskey:isCat`
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- canonical IRI: `https://misskey-hub.net/ns#isCat`
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Used on actors to indicate that they in some way identify as a cat, expressed as a boolean value.
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If this property is set to `true`, displaying the actor or their notes will have some special effects attached in some clients.
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