use crate::{
+ activities::verify_community_matches,
+ fetcher::user_or_community::{PersonOrGroupType, UserOrCommunity},
objects::{community::ApubCommunity, person::ApubPerson, post::ApubPost},
- protocol::{ImageObject, Source, Unparsed},
+ protocol::{objects::LanguageTag, ImageObject, InCommunity, Source},
};
-use activitystreams_kinds::object::PageType;
-use anyhow::anyhow;
-use chrono::{DateTime, FixedOffset};
-use lemmy_apub_lib::{
- data::Data,
- object_id::ObjectId,
- traits::{ActivityHandler, ApubObject},
- values::MediaTypeHtml,
+use activitypub_federation::{
+ config::Data,
+ fetch::object_id::ObjectId,
+ kinds::{
+ link::LinkType,
+ object::{DocumentType, ImageType},
+ },
+ protocol::{
+ helpers::{deserialize_one_or_many, deserialize_skip_error},
+ values::MediaTypeMarkdownOrHtml,
+ },
+ traits::{ActivityHandler, Object},
};
-use lemmy_utils::LemmyError;
-use lemmy_websocket::LemmyContext;
-use serde::{Deserialize, Serialize};
+use chrono::{DateTime, FixedOffset};
+use itertools::Itertools;
+use lemmy_api_common::context::LemmyContext;
+use lemmy_db_schema::newtypes::DbUrl;
+use lemmy_utils::error::{LemmyError, LemmyErrorType};
+use serde::{de::Error, Deserialize, Deserializer, Serialize};
use serde_with::skip_serializing_none;
use url::Url;
+#[derive(Clone, Debug, Deserialize, Serialize, PartialEq, Eq)]
+pub enum PageType {
+ Page,
+ Article,
+ Note,
+ Video,
+ Event,
+}
+
#[skip_serializing_none]
#[derive(Clone, Debug, Deserialize, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct Page {
- pub(crate) r#type: PageType,
+ #[serde(rename = "type")]
+ pub(crate) kind: PageType,
pub(crate) id: ObjectId<ApubPost>,
- pub(crate) attributed_to: ObjectId<ApubPerson>,
+ pub(crate) attributed_to: AttributedTo,
+ #[serde(deserialize_with = "deserialize_one_or_many")]
pub(crate) to: Vec<Url>,
- #[serde(default)]
+ // If there is inReplyTo field this is actually a comment and must not be parsed
+ #[serde(deserialize_with = "deserialize_not_present", default)]
+ pub(crate) in_reply_to: Option<String>,
+
+ pub(crate) name: Option<String>,
+ #[serde(deserialize_with = "deserialize_one_or_many", default)]
pub(crate) cc: Vec<Url>,
- pub(crate) name: String,
pub(crate) content: Option<String>,
- pub(crate) media_type: Option<MediaTypeHtml>,
+ pub(crate) media_type: Option<MediaTypeMarkdownOrHtml>,
+ #[serde(deserialize_with = "deserialize_skip_error", default)]
pub(crate) source: Option<Source>,
- pub(crate) url: Option<Url>,
+ /// most software uses array type for attachment field, so we do the same. nevertheless, we only
+ /// use the first item
+ #[serde(default)]
+ pub(crate) attachment: Vec<Attachment>,
pub(crate) image: Option<ImageObject>,
pub(crate) comments_enabled: Option<bool>,
pub(crate) sensitive: Option<bool>,
- pub(crate) stickied: Option<bool>,
pub(crate) published: Option<DateTime<FixedOffset>>,
pub(crate) updated: Option<DateTime<FixedOffset>>,
- #[serde(flatten)]
- pub(crate) unparsed: Unparsed,
+ pub(crate) language: Option<LanguageTag>,
+ pub(crate) audience: Option<ObjectId<ApubCommunity>>,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub(crate) struct Link {
+ pub(crate) href: Url,
+ pub(crate) r#type: LinkType,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub(crate) struct Image {
+ #[serde(rename = "type")]
+ pub(crate) kind: ImageType,
+ pub(crate) url: Url,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub(crate) struct Document {
+ #[serde(rename = "type")]
+ pub(crate) kind: DocumentType,
+ pub(crate) url: Url,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+#[serde(untagged)]
+pub(crate) enum Attachment {
+ Link(Link),
+ Image(Image),
+ Document(Document),
+}
+
+impl Attachment {
+ pub(crate) fn url(self) -> Url {
+ match self {
+ // url as sent by Lemmy (new)
+ Attachment::Link(l) => l.href,
+ // image sent by lotide
+ Attachment::Image(i) => i.url,
+ // sent by mobilizon
+ Attachment::Document(d) => d.url,
+ }
+ }
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+#[serde(untagged)]
+pub(crate) enum AttributedTo {
+ Lemmy(ObjectId<ApubPerson>),
+ Peertube([AttributedToPeertube; 2]),
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub(crate) struct AttributedToPeertube {
+ #[serde(rename = "type")]
+ pub kind: PersonOrGroupType,
+ pub id: ObjectId<UserOrCommunity>,
}
impl Page {
- /// Only mods can change the post's stickied/locked status. So if either of these is changed from
- /// the current value, it is a mod action and needs to be verified as such.
+ /// Only mods can change the post's locked status. So if it is changed from the default value,
+ /// it is a mod action and needs to be verified as such.
///
- /// Both stickied and locked need to be false on a newly created post (verified in [[CreatePost]].
- pub(crate) async fn is_mod_action(&self, context: &LemmyContext) -> Result<bool, LemmyError> {
- let old_post = ObjectId::<ApubPost>::new(self.id.clone())
- .dereference_local(context)
- .await;
-
- let is_mod_action = if let Ok(old_post) = old_post {
- self.stickied != Some(old_post.stickied) || self.comments_enabled != Some(!old_post.locked)
- } else {
- false
- };
- Ok(is_mod_action)
+ /// Locked needs to be false on a newly created post (verified in [[CreatePost]].
+ pub(crate) async fn is_mod_action(
+ &self,
+ context: &Data<LemmyContext>,
+ ) -> Result<bool, LemmyError> {
+ let old_post = self.id.clone().dereference_local(context).await;
+ Ok(Page::is_locked_changed(&old_post, &self.comments_enabled))
}
- pub(crate) async fn extract_community(
- &self,
- context: &LemmyContext,
- request_counter: &mut i32,
- ) -> Result<ApubCommunity, LemmyError> {
- let mut to_iter = self.to.iter();
- loop {
- if let Some(cid) = to_iter.next() {
- let cid = ObjectId::new(cid.clone());
- if let Ok(c) = cid.dereference(context, request_counter).await {
- break Ok(c);
- }
- } else {
- return Err(anyhow!("No community found in cc").into());
+ pub(crate) fn is_locked_changed<E>(
+ old_post: &Result<ApubPost, E>,
+ new_comments_enabled: &Option<bool>,
+ ) -> bool {
+ if let Some(new_comments_enabled) = new_comments_enabled {
+ if let Ok(old_post) = old_post {
+ return new_comments_enabled != &!old_post.locked;
}
}
+
+ false
+ }
+
+ pub(crate) fn creator(&self) -> Result<ObjectId<ApubPerson>, LemmyError> {
+ match &self.attributed_to {
+ AttributedTo::Lemmy(l) => Ok(l.clone()),
+ AttributedTo::Peertube(p) => p
+ .iter()
+ .find(|a| a.kind == PersonOrGroupType::Person)
+ .map(|a| ObjectId::<ApubPerson>::from(a.id.clone().into_inner()))
+ .ok_or_else(|| LemmyErrorType::PageDoesNotSpecifyCreator.into()),
+ }
+ }
+}
+
+impl Attachment {
+ pub(crate) fn new(url: DbUrl) -> Attachment {
+ Attachment::Link(Link {
+ href: url.into(),
+ r#type: Default::default(),
+ })
}
}
// Used for community outbox, so that it can be compatible with Pleroma/Mastodon.
-#[async_trait::async_trait(?Send)]
+#[async_trait::async_trait]
impl ActivityHandler for Page {
type DataType = LemmyContext;
- async fn verify(
- &self,
- data: &Data<Self::DataType>,
- request_counter: &mut i32,
- ) -> Result<(), LemmyError> {
- ApubPost::verify(self, self.id.inner(), data, request_counter).await
+ type Error = LemmyError;
+ fn id(&self) -> &Url {
+ unimplemented!()
+ }
+ fn actor(&self) -> &Url {
+ unimplemented!()
}
- async fn receive(
- self,
- data: &Data<Self::DataType>,
- request_counter: &mut i32,
- ) -> Result<(), LemmyError> {
- ApubPost::from_apub(self, data, request_counter).await?;
+ async fn verify(&self, data: &Data<Self::DataType>) -> Result<(), LemmyError> {
+ ApubPost::verify(self, self.id.inner(), data).await
+ }
+ async fn receive(self, data: &Data<Self::DataType>) -> Result<(), LemmyError> {
+ ApubPost::from_json(self, data).await?;
Ok(())
}
}
+
+#[async_trait::async_trait]
+impl InCommunity for Page {
+ async fn community(&self, context: &Data<LemmyContext>) -> Result<ApubCommunity, LemmyError> {
+ let community = match &self.attributed_to {
+ AttributedTo::Lemmy(_) => {
+ let mut iter = self.to.iter().merge(self.cc.iter());
+ loop {
+ if let Some(cid) = iter.next() {
+ let cid = ObjectId::from(cid.clone());
+ if let Ok(c) = cid.dereference(context).await {
+ break c;
+ }
+ } else {
+ return Err(LemmyErrorType::NoCommunityFoundInCc)?;
+ }
+ }
+ }
+ AttributedTo::Peertube(p) => {
+ p.iter()
+ .find(|a| a.kind == PersonOrGroupType::Group)
+ .map(|a| ObjectId::<ApubCommunity>::from(a.id.clone().into_inner()))
+ .ok_or(LemmyErrorType::PageDoesNotSpecifyGroup)?
+ .dereference(context)
+ .await?
+ }
+ };
+ if let Some(audience) = &self.audience {
+ verify_community_matches(audience, community.actor_id.clone())?;
+ }
+ Ok(community)
+ }
+}
+
+/// Only allows deserialization if the field is missing or null. If it is present, throws an error.
+pub fn deserialize_not_present<'de, D>(deserializer: D) -> Result<Option<String>, D::Error>
+where
+ D: Deserializer<'de>,
+{
+ let result: Option<String> = Deserialize::deserialize(deserializer)?;
+ match result {
+ None => Ok(None),
+ Some(_) => Err(D::Error::custom("Post must not have inReplyTo property")),
+ }
+}
+
+#[cfg(test)]
+mod tests {
+ #![allow(clippy::unwrap_used)]
+ #![allow(clippy::indexing_slicing)]
+
+ use crate::protocol::{objects::page::Page, tests::test_parse_lemmy_item};
+
+ #[test]
+ fn test_not_parsing_note_as_page() {
+ assert!(test_parse_lemmy_item::<Page>("assets/lemmy/objects/note.json").is_err());
+ }
+}
projects / lemmy.git / blobdiff