use crate::{
- extensions::{context::lemmy_context, group_extensions::GroupExtension},
- fetcher::user::get_or_fetch_and_upsert_user,
- objects::{
- check_object_domain,
- create_tombstone,
- get_object_from_apub,
- get_source_markdown_value,
- set_content_and_source,
- FromApub,
- FromApubToForm,
- ToApub,
- },
+ extensions::{context::lemmy_context, signatures::PublicKey},
+ fetcher::community::{fetch_community_outbox, update_community_mods},
+ generate_moderators_url,
+ objects::{create_tombstone, FromApub, ImageObject, Source, ToApub},
ActorType,
- GroupExt,
};
use activitystreams::{
- actor::{kind::GroupType, ApActor, Endpoints, Group},
- base::BaseExt,
- object::{ApObject, Image, Tombstone},
- prelude::*,
+ actor::{kind::GroupType, Endpoints},
+ base::AnyBase,
+ object::{kind::ImageType, Tombstone},
+ primitives::OneOrMany,
+ unparsed::Unparsed,
};
-use activitystreams_ext::Ext2;
-use anyhow::Context;
-use lemmy_db_queries::DbPool;
+use chrono::{DateTime, FixedOffset};
+use lemmy_api_common::blocking;
+use lemmy_apub_lib::{
+ values::{MediaTypeHtml, MediaTypeMarkdown},
+ verify_domains_match,
+};
+use lemmy_db_queries::{source::community::Community_, DbPool};
use lemmy_db_schema::{
naive_now,
source::community::{Community, CommunityForm},
};
-use lemmy_db_views_actor::community_moderator_view::CommunityModeratorView;
-use lemmy_structs::blocking;
use lemmy_utils::{
- location_info,
- utils::{check_slurs, check_slurs_opt, convert_datetime},
+ utils::{check_slurs, check_slurs_opt, convert_datetime, markdown_to_html},
LemmyError,
};
use lemmy_websocket::LemmyContext;
+use serde::{Deserialize, Serialize};
+use serde_with::skip_serializing_none;
use url::Url;
-#[async_trait::async_trait(?Send)]
-impl ToApub for Community {
- type ApubType = GroupExt;
-
- async fn to_apub(&self, pool: &DbPool) -> Result<GroupExt, LemmyError> {
- // The attributed to, is an ordered vector with the creator actor_ids first,
- // then the rest of the moderators
- // TODO Technically the instance admins can mod the community, but lets
- // ignore that for now
- let id = self.id;
- let moderators = blocking(pool, move |conn| {
- CommunityModeratorView::for_community(&conn, id)
- })
- .await??;
- let moderators: Vec<Url> = moderators
- .into_iter()
- .map(|m| m.moderator.actor_id.into_inner())
- .collect();
-
- let mut group = ApObject::new(Group::new());
- group
- .set_many_contexts(lemmy_context()?)
- .set_id(self.actor_id.to_owned().into())
- .set_name(self.title.to_owned())
- .set_published(convert_datetime(self.published))
- .set_many_attributed_tos(moderators);
-
- if let Some(u) = self.updated.to_owned() {
- group.set_updated(convert_datetime(u));
- }
- if let Some(d) = self.description.to_owned() {
- set_content_and_source(&mut group, &d)?;
- }
-
- if let Some(icon_url) = &self.icon {
- let mut image = Image::new();
- image.set_url(Url::parse(icon_url)?);
- group.set_icon(image.into_any_base()?);
- }
+#[skip_serializing_none]
+#[derive(Clone, Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct Group {
+ #[serde(rename = "@context")]
+ context: OneOrMany<AnyBase>,
+ #[serde(rename = "type")]
+ kind: GroupType,
+ id: Url,
+ /// username, set at account creation and can never be changed
+ preferred_username: String,
+ /// title (can be changed at any time)
+ name: String,
+ content: Option<String>,
+ media_type: Option<MediaTypeHtml>,
+ source: Option<Source>,
+ icon: Option<ImageObject>,
+ /// banner
+ image: Option<ImageObject>,
+ // lemmy extension
+ sensitive: Option<bool>,
+ // lemmy extension
+ pub(crate) moderators: Option<Url>,
+ inbox: Url,
+ pub(crate) outbox: Url,
+ followers: Url,
+ endpoints: Endpoints<Url>,
+ public_key: PublicKey,
+ published: DateTime<FixedOffset>,
+ updated: Option<DateTime<FixedOffset>>,
+ #[serde(flatten)]
+ unparsed: Unparsed,
+}
- if let Some(banner_url) = &self.banner {
- let mut image = Image::new();
- image.set_url(Url::parse(banner_url)?);
- group.set_image(image.into_any_base()?);
- }
+impl Group {
+ pub(crate) fn id(&self, expected_domain: &Url) -> Result<&Url, LemmyError> {
+ verify_domains_match(&self.id, expected_domain)?;
+ Ok(&self.id)
+ }
+ pub(crate) async fn from_apub_to_form(
+ group: &Group,
+ expected_domain: &Url,
+ ) -> Result<CommunityForm, LemmyError> {
+ let actor_id = Some(group.id(expected_domain)?.clone().into());
+ let name = group.preferred_username.clone();
+ let title = group.name.clone();
+ let description = group.source.clone().map(|s| s.content);
+ let shared_inbox = group.endpoints.shared_inbox.clone().map(|s| s.into());
- let mut ap_actor = ApActor::new(self.inbox_url.clone().into(), group);
- ap_actor
- .set_preferred_username(self.name.to_owned())
- .set_outbox(self.get_outbox_url()?)
- .set_followers(self.followers_url.clone().into())
- .set_endpoints(Endpoints {
- shared_inbox: Some(self.get_shared_inbox_or_inbox_url()),
- ..Default::default()
- });
+ check_slurs(&name)?;
+ check_slurs(&title)?;
+ check_slurs_opt(&description)?;
- let nsfw = self.nsfw;
- let category_id = self.category_id;
- let group_extension = blocking(pool, move |conn| {
- GroupExtension::new(conn, category_id, nsfw)
+ Ok(CommunityForm {
+ name,
+ title,
+ description,
+ removed: None,
+ published: Some(group.published.naive_local()),
+ updated: group.updated.map(|u| u.naive_local()),
+ deleted: None,
+ nsfw: Some(group.sensitive.unwrap_or(false)),
+ actor_id,
+ local: Some(false),
+ private_key: None,
+ public_key: Some(group.public_key.public_key_pem.clone()),
+ last_refreshed_at: Some(naive_now()),
+ icon: Some(group.icon.clone().map(|i| i.url.into())),
+ banner: Some(group.image.clone().map(|i| i.url.into())),
+ followers_url: Some(group.followers.clone().into()),
+ inbox_url: Some(group.inbox.clone().into()),
+ shared_inbox_url: Some(shared_inbox),
})
- .await??;
+ }
+}
- Ok(Ext2::new(
- ap_actor,
- group_extension,
- self.get_public_key_ext()?,
- ))
+#[async_trait::async_trait(?Send)]
+impl ToApub for Community {
+ type ApubType = Group;
+
+ async fn to_apub(&self, _pool: &DbPool) -> Result<Group, LemmyError> {
+ let source = self.description.clone().map(|bio| Source {
+ content: bio,
+ media_type: MediaTypeMarkdown::Markdown,
+ });
+ let icon = self.icon.clone().map(|url| ImageObject {
+ kind: ImageType::Image,
+ url: url.into(),
+ });
+ let image = self.banner.clone().map(|url| ImageObject {
+ kind: ImageType::Image,
+ url: url.into(),
+ });
+
+ let group = Group {
+ context: lemmy_context(),
+ kind: GroupType::Group,
+ id: self.actor_id(),
+ preferred_username: self.name.clone(),
+ name: self.title.clone(),
+ content: self.description.as_ref().map(|b| markdown_to_html(b)),
+ media_type: self.description.as_ref().map(|_| MediaTypeHtml::Html),
+ source,
+ icon,
+ image,
+ sensitive: Some(self.nsfw),
+ moderators: Some(generate_moderators_url(&self.actor_id)?.into()),
+ inbox: self.inbox_url.clone().into(),
+ outbox: self.get_outbox_url()?,
+ followers: self.followers_url.clone().into(),
+ endpoints: Endpoints {
+ shared_inbox: self.shared_inbox_url.clone().map(|s| s.into()),
+ ..Default::default()
+ },
+ public_key: self.get_public_key()?,
+ published: convert_datetime(self.published),
+ updated: self.updated.map(convert_datetime),
+ unparsed: Default::default(),
+ };
+ Ok(group)
}
fn to_tombstone(&self) -> Result<Tombstone, LemmyError> {
#[async_trait::async_trait(?Send)]
impl FromApub for Community {
- type ApubType = GroupExt;
+ type ApubType = Group;
- /// Converts a `Group` to `Community`.
+ /// Converts a `Group` to `Community`, inserts it into the database and updates moderators.
async fn from_apub(
- group: &GroupExt,
+ group: &Group,
context: &LemmyContext,
- expected_domain: Url,
+ expected_domain: &Url,
request_counter: &mut i32,
) -> Result<Community, LemmyError> {
- get_object_from_apub(group, context, expected_domain, request_counter).await
- }
-}
-
-#[async_trait::async_trait(?Send)]
-impl FromApubToForm<GroupExt> for CommunityForm {
- async fn from_apub(
- group: &GroupExt,
- context: &LemmyContext,
- expected_domain: Url,
- request_counter: &mut i32,
- ) -> Result<Self, LemmyError> {
- let creator_and_moderator_uris = group.inner.attributed_to().context(location_info!())?;
- let creator_uri = creator_and_moderator_uris
- .as_many()
- .context(location_info!())?
- .iter()
- .next()
- .context(location_info!())?
- .as_xsd_any_uri()
- .context(location_info!())?;
+ let form = Group::from_apub_to_form(group, expected_domain).await?;
- let creator = get_or_fetch_and_upsert_user(creator_uri, context, request_counter).await?;
- let name = group
- .inner
- .preferred_username()
- .context(location_info!())?
- .to_string();
- let title = group
- .inner
- .name()
- .context(location_info!())?
- .as_one()
- .context(location_info!())?
- .as_xsd_string()
- .context(location_info!())?
- .to_string();
+ let community = blocking(context.pool(), move |conn| Community::upsert(conn, &form)).await??;
+ update_community_mods(group, &community, context, request_counter).await?;
- let description = get_source_markdown_value(group)?;
+ // TODO: doing this unconditionally might cause infinite loop for some reason
+ fetch_community_outbox(context, &group.outbox, request_counter).await?;
- check_slurs(&name)?;
- check_slurs(&title)?;
- check_slurs_opt(&description)?;
-
- let icon = match group.icon() {
- Some(any_image) => Some(
- Image::from_any_base(any_image.as_one().context(location_info!())?.clone())
- .context(location_info!())?
- .context(location_info!())?
- .url()
- .context(location_info!())?
- .as_single_xsd_any_uri()
- .map(|u| u.to_string()),
- ),
- None => None,
- };
- let banner = match group.image() {
- Some(any_image) => Some(
- Image::from_any_base(any_image.as_one().context(location_info!())?.clone())
- .context(location_info!())?
- .context(location_info!())?
- .url()
- .context(location_info!())?
- .as_single_xsd_any_uri()
- .map(|u| u.to_string()),
- ),
- None => None,
- };
- let shared_inbox = group
- .inner
- .endpoints()?
- .map(|e| e.shared_inbox)
- .flatten()
- .map(|s| s.to_owned().into());
-
- Ok(CommunityForm {
- name,
- title,
- description,
- category_id: group.ext_one.category.identifier.parse::<i32>()?,
- creator_id: creator.id,
- removed: None,
- published: group.inner.published().map(|u| u.to_owned().naive_local()),
- updated: group.inner.updated().map(|u| u.to_owned().naive_local()),
- deleted: None,
- nsfw: group.ext_one.sensitive,
- actor_id: Some(check_object_domain(group, expected_domain)?),
- local: false,
- private_key: None,
- public_key: Some(group.ext_two.to_owned().public_key.public_key_pem),
- last_refreshed_at: Some(naive_now()),
- icon,
- banner,
- followers_url: Some(
- group
- .inner
- .followers()?
- .context(location_info!())?
- .to_owned()
- .into(),
- ),
- inbox_url: Some(group.inner.inbox()?.to_owned().into()),
- shared_inbox_url: Some(shared_inbox),
- })
+ Ok(community)
}
}