lemmy/crates/apub/src/protocol/objects/page.rs

75 lines
2.5 KiB
Rust

use crate::{
objects::{community::ApubCommunity, person::ApubPerson, post::ApubPost},
protocol::{ImageObject, Source},
};
use activitystreams::{object::kind::PageType, unparsed::Unparsed};
use anyhow::anyhow;
use chrono::{DateTime, FixedOffset};
use lemmy_apub_lib::{object_id::ObjectId, values::MediaTypeHtml};
use lemmy_utils::LemmyError;
use lemmy_websocket::LemmyContext;
use serde::{Deserialize, Serialize};
use serde_with::skip_serializing_none;
use url::Url;
#[skip_serializing_none]
#[derive(Clone, Debug, Deserialize, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct Page {
pub(crate) r#type: PageType,
pub(crate) id: ObjectId<ApubPost>,
pub(crate) attributed_to: ObjectId<ApubPerson>,
pub(crate) to: Vec<Url>,
#[serde(default)]
pub(crate) cc: Vec<Url>,
pub(crate) name: String,
pub(crate) content: Option<String>,
pub(crate) media_type: Option<MediaTypeHtml>,
pub(crate) source: Option<Source>,
pub(crate) url: Option<Url>,
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,
}
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.
///
/// 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)
}
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());
}
}
}
}