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- uses: actions/checkout@v3
- name: Install modules
run: npm install prettier
run: npm install prettier@2.5.1
- name: Run Prettier
run: npx prettier --check bookwyrm/static/js/*.js

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# Federation
BookWyrm uses the [ActivityPub](http://activitypub.rocks/) protocol to send and receive user activity between other BookWyrm instances and other services that implement ActivityPub. To handle book data, BookWyrm has a handful of extended Activity types which are not part of the standard, but are legible to other BookWyrm instances.
## Activities and Objects
### Users and relationships
User relationship interactions follow the standard ActivityPub spec.
- `Follow`: request to receive statuses from a user, and view their statuses that have followers-only privacy
- `Accept`: approves a `Follow` and finalizes the relationship
- `Reject`: denies a `Follow`
- `Block`: prevent users from seeing one another's statuses, and prevents the blocked user from viewing the actor's profile
- `Update`: updates a user's profile and settings
- `Delete`: deactivates a user
- `Undo`: reverses a `Follow` or `Block`
### Activities
- `Create/Status`: saves a new status in the database.
- `Delete/Status`: Removes a status
- `Like/Status`: Creates a favorite on the status
- `Announce/Status`: Boosts the status into the actor's timeline
- `Undo/*`,: Reverses a `Like` or `Announce`
### Collections
User's books and lists are represented by [`OrderedCollection`](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-orderedcollection)
### Statuses
BookWyrm is focused on book reading activities - it is not a general-purpose messaging application. For this reason, BookWyrm only accepts status `Create` activities if they are:
- Direct messages (i.e., `Note`s with the privacy level `direct`, which mention a local user),
- Related to a book (of a custom status type that includes the field `inReplyToBook`),
- Replies to existing statuses saved in the database
All other statuses will be received by the instance inbox, but by design **will not be delivered to user inboxes or displayed to users**.
### Custom Object types
With the exception of `Note`, the following object types are used in Bookwyrm but are not currently provided with a custom JSON-LD `@context` extension IRI. This is likely to change in future to make them true deserialisable JSON-LD objects.
##### Note
Within BookWyrm a `Note` is constructed according to [the ActivityStreams vocabulary](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-note), however `Note`s can only be created as direct messages or as replies to other statuses. As mentioned above, this also applies to incoming `Note`s.
##### Review
A `Review` is a status in response to a book (indicated by the `inReplyToBook` field), which has a title, body, and numerical rating between 0 (not rated) and 5.
Example:
```json
{
"id": "https://example.net/user/library_lurker/review/2",
"type": "Review",
"published": "2023-06-30T21:43:46.013132+00:00",
"attributedTo": "https://example.net/user/library_lurker",
"content": "<p>This is an enjoyable book with great characters.</p>",
"to": ["https://example.net/user/library_lurker/followers"],
"cc": [],
"replies": {
"id": "https://example.net/user/library_lurker/review/2/replies",
"type": "OrderedCollection",
"totalItems": 0,
"first": "https://example.net/user/library_lurker/review/2/replies?page=1",
"last": "https://example.net/user/library_lurker/review/2/replies?page=1",
"@context": "https://www.w3.org/ns/activitystreams"
},
"summary": "Spoilers ahead!",
"tag": [],
"attachment": [],
"sensitive": true,
"inReplyToBook": "https://example.net/book/1",
"name": "What a cracking read",
"rating": 4.5,
"@context": "https://www.w3.org/ns/activitystreams"
}
```
##### Comment
A `Comment` on a book mentions a book and has a message body, reading status, and progress indicator.
Example:
```json
{
"id": "https://example.net/user/library_lurker/comment/9",
"type": "Comment",
"published": "2023-06-30T21:43:46.013132+00:00",
"attributedTo": "https://example.net/user/library_lurker",
"content": "<p>This is a very enjoyable book so far.</p>",
"to": ["https://example.net/user/library_lurker/followers"],
"cc": [],
"replies": {
"id": "https://example.net/user/library_lurker/comment/9/replies",
"type": "OrderedCollection",
"totalItems": 0,
"first": "https://example.net/user/library_lurker/comment/9/replies?page=1",
"last": "https://example.net/user/library_lurker/comment/9/replies?page=1",
"@context": "https://www.w3.org/ns/activitystreams"
},
"summary": "Spoilers ahead!",
"tag": [],
"attachment": [],
"sensitive": true,
"inReplyToBook": "https://example.net/book/1",
"readingStatus": "reading",
"progress": 25,
"progressMode": "PG",
"@context": "https://www.w3.org/ns/activitystreams"
}
```
##### Quotation
A quotation (aka "quote") has a message body, an excerpt from a book including position as a page number or percentage indicator, and mentions a book.
Example:
```json
{
"id": "https://example.net/user/mouse/quotation/13",
"url": "https://example.net/user/mouse/quotation/13",
"inReplyTo": null,
"published": "2020-05-10T02:38:31.150343+00:00",
"attributedTo": "https://example.net/user/mouse",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://example.net/user/mouse/followers"
],
"sensitive": false,
"content": "I really like this quote",
"type": "Quotation",
"replies": {
"id": "https://example.net/user/mouse/quotation/13/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://example.net/user/mouse/quotation/13/replies?only_other_accounts=true&page=true",
"partOf": "https://example.net/user/mouse/quotation/13/replies",
"items": []
}
},
"inReplyToBook": "https://example.net/book/1",
"quote": "To be or not to be, that is the question.",
"position": 50,
"positionMode": "PCT",
"@context": "https://www.w3.org/ns/activitystreams"
}
```
### Custom Objects
##### Work
A particular book, a "work" in the [FRBR](https://en.wikipedia.org/wiki/Functional_Requirements_for_Bibliographic_Records) sense.
Example:
```json
{
"id": "https://bookwyrm.social/book/5988",
"type": "Work",
"authors": [
"https://bookwyrm.social/author/417"
],
"first_published_date": null,
"published_date": null,
"title": "Piranesi",
"sort_title": null,
"subtitle": null,
"description": "**From the *New York Times* bestselling author of *Jonathan Strange & Mr. Norrell*, an intoxicating, hypnotic new novel set in a dreamlike alternative reality.",
"languages": [],
"series": null,
"series_number": null,
"subjects": [
"English literature"
],
"subject_places": [],
"openlibrary_key": "OL20893680W",
"librarything_key": null,
"goodreads_key": null,
"attachment": [
{
"url": "https://bookwyrm.social/images/covers/10226290-M.jpg",
"type": "Image"
}
],
"lccn": null,
"editions": [
"https://bookwyrm.social/book/5989"
],
"@context": "https://www.w3.org/ns/activitystreams"
}
```
##### Edition
A particular _manifestation_ of a Work, in the [FRBR](https://en.wikipedia.org/wiki/Functional_Requirements_for_Bibliographic_Records) sense.
Example:
```json
{
"id": "https://bookwyrm.social/book/5989",
"lastEditedBy": "https://example.net/users/rat",
"type": "Edition",
"authors": [
"https://bookwyrm.social/author/417"
],
"first_published_date": null,
"published_date": "2020-09-15T00:00:00+00:00",
"title": "Piranesi",
"sort_title": null,
"subtitle": null,
"description": "Piranesi's house is no ordinary building; its rooms are infinite, its corridors endless, its walls are lined with thousands upon thousands of statues, each one different from all the others.",
"languages": [
"English"
],
"series": null,
"series_number": null,
"subjects": [],
"subject_places": [],
"openlibrary_key": "OL29486417M",
"librarything_key": null,
"goodreads_key": null,
"isfdb": null,
"attachment": [
{
"url": "https://bookwyrm.social/images/covers/50202953._SX318_.jpg",
"type": "Image"
}
],
"isbn_10": "1526622424",
"isbn_13": "9781526622426",
"oclc_number": null,
"asin": null,
"pages": 272,
"physical_format": null,
"publishers": [
"Bloomsbury Publishing Plc"
],
"work": "https://bookwyrm.social/book/5988",
"@context": "https://www.w3.org/ns/activitystreams"
}
```
#### Shelf
A user's book collection. By default, every user has a `to-read`, `reading`, `read`, and `stopped-reading` shelf which are used to track reading progress. Users may create an unlimited number of additional shelves with their own ids.
Example
```json
{
"id": "https://example.net/user/avid_reader/books/extraspecialbooks-5",
"type": "Shelf",
"totalItems": 0,
"first": "https://example.net/user/avid_reader/books/extraspecialbooks-5?page=1",
"last": "https://example.net/user/avid_reader/books/extraspecialbooks-5?page=1",
"name": "Extra special books",
"owner": "https://example.net/user/avid_reader",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://example.net/user/avid_reader/followers"
],
"@context": "https://www.w3.org/ns/activitystreams"
}
```
#### List
A collection of books that may have items contributed by users other than the one who created the list.
Example:
```json
{
"id": "https://example.net/list/1",
"type": "BookList",
"totalItems": 0,
"first": "https://example.net/list/1?page=1",
"last": "https://example.net/list/1?page=1",
"name": "My cool list",
"owner": "https://example.net/user/avid_reader",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://example.net/user/avid_reader/followers"
],
"summary": "A list of books I like.",
"curation": "curated",
"@context": "https://www.w3.org/ns/activitystreams"
}
```
#### Activities
- `Create`: Adds a shelf or list to the database.
- `Delete`: Removes a shelf or list.
- `Add`: Adds a book to a shelf or list.
- `Remove`: Removes a book from a shelf or list.
## Alternative Serialization
Because BookWyrm uses custom object types that aren't listed in [the standard ActivityStreams Vocabulary](https://www.w3.org/TR/activitystreams-vocabulary), some statuses are transformed into standard types when sent to or viewed by non-BookWyrm services. `Review`s are converted into `Article`s, and `Comment`s and `Quotation`s are converted into `Note`s, with a link to the book and the cover image attached.
In future this may be done with [JSON-LD type arrays](https://www.w3.org/TR/json-ld/#specifying-the-type) instead.
## Other extensions
### Webfinger
Bookwyrm uses the [Webfinger](https://datatracker.ietf.org/doc/html/rfc7033) standard to identify and disambiguate fediverse actors. The [Webfinger documentation on the Mastodon project](https://docs.joinmastodon.org/spec/webfinger/) provides a good overview of how Webfinger is used.
### HTTP Signatures
Bookwyrm uses and requires HTTP signatures for all `POST` requests. `GET` requests are not signed by default, but if Bookwyrm receives a `403` response to a `GET` it will re-send the request, signed by the default server user. This usually will have a user id of `https://example.net/user/bookwyrm.instance.actor`
#### publicKey id
In older versions of Bookwyrm the `publicKey.id` was incorrectly listed in request headers as `https://example.net/user/username#main-key`. As of v0.6.3 the id is now listed correctly, as `https://example.net/user/username/#main-key`. In most ActivityPub implementations this will make no difference as the URL will usually resolve to the same place.
### NodeInfo
Bookwyrm uses the [NodeInfo](http://nodeinfo.diaspora.software/) standard to provide statistics and version information for each instance.
## Further Documentation
See [docs.joinbookwyrm.com/](https://docs.joinbookwyrm.com/) for more documentation.

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@ -40,9 +40,6 @@ let BookWyrm = new (class {
document.querySelectorAll("details.dropdown").forEach((node) => {
node.addEventListener("toggle", this.handleDetailsDropdown.bind(this));
node.querySelectorAll("[data-modal-open]").forEach((modal_node) =>
modal_node.addEventListener("click", () => (node.open = false))
);
});
document