lemmy/crates/api_crud/src/post/list.rs

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use crate::PerformCrud;
use actix_web::web::Data;
use lemmy_api_common::{
post::{GetPosts, GetPostsResponse},
utils::{blocking, check_private_instance, get_local_user_view_from_jwt_opt},
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};
use lemmy_apub::{fetcher::resolve_actor_identifier, objects::community::ApubCommunity};
use lemmy_db_schema::{
source::{community::Community, site::Site},
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traits::DeleteableOrRemoveable,
ListingType,
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};
use lemmy_db_views::post_view::PostQueryBuilder;
use lemmy_utils::{error::LemmyError, ConnectionId};
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use lemmy_websocket::LemmyContext;
use std::str::FromStr;
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#[async_trait::async_trait(?Send)]
impl PerformCrud for GetPosts {
type Response = GetPostsResponse;
#[tracing::instrument(skip(context, _websocket_id))]
async fn perform(
&self,
context: &Data<LemmyContext>,
_websocket_id: Option<ConnectionId>,
) -> Result<GetPostsResponse, LemmyError> {
let data: &GetPosts = self;
let local_user_view =
get_local_user_view_from_jwt_opt(data.auth.as_ref(), context.pool(), context.secret())
.await?;
check_private_instance(&local_user_view, context.pool()).await?;
let person_id = local_user_view.to_owned().map(|l| l.person.id);
let show_nsfw = local_user_view.as_ref().map(|t| t.local_user.show_nsfw);
let show_bot_accounts = local_user_view
.as_ref()
.map(|t| t.local_user.show_bot_accounts);
let show_read_posts = local_user_view
.as_ref()
.map(|t| t.local_user.show_read_posts);
let sort = data.sort;
let listing_type: ListingType = match data.type_ {
Some(l) => l,
None => {
let site = blocking(context.pool(), Site::read_local_site).await??;
ListingType::from_str(&site.default_post_listing_type)?
}
};
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let page = data.page;
let limit = data.limit;
let community_id = data.community_id;
let community_actor_id = if let Some(name) = &data.community_name {
resolve_actor_identifier::<ApubCommunity, Community>(name, context)
.await
.ok()
.map(|c| c.actor_id)
} else {
None
};
let saved_only = data.saved_only;
let mut posts = blocking(context.pool(), move |conn| {
PostQueryBuilder::create(conn)
.listing_type(listing_type)
.sort(sort)
.show_nsfw(show_nsfw)
.show_bot_accounts(show_bot_accounts)
.show_read_posts(show_read_posts)
.community_id(community_id)
.community_actor_id(community_actor_id)
.saved_only(saved_only)
.my_person_id(person_id)
.page(page)
.limit(limit)
.list()
})
.await?
.map_err(|e| LemmyError::from_error_message(e, "couldnt_get_posts"))?;
// Blank out deleted or removed info for non-logged in users
if person_id.is_none() {
for pv in posts
.iter_mut()
.filter(|p| p.post.deleted || p.post.removed)
{
pv.post = pv.to_owned().post.blank_out_deleted_or_removed_info();
}
for pv in posts
.iter_mut()
.filter(|p| p.community.deleted || p.community.removed)
{
pv.community = pv.to_owned().community.blank_out_deleted_or_removed_info();
}
}
Ok(GetPostsResponse { posts })
}
}