120 lines
3.4 KiB
Rust
120 lines
3.4 KiB
Rust
use actix_web::web::{Data, Json, Query};
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use lemmy_api_common::{
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context::LemmyContext,
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post::{GetPost, GetPostResponse},
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utils::{
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check_private_instance,
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is_mod_or_admin_opt,
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local_user_view_from_jwt_opt,
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mark_post_as_read,
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},
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};
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use lemmy_db_schema::{
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aggregates::structs::{PersonPostAggregates, PersonPostAggregatesForm},
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source::{comment::Comment, local_site::LocalSite, post::Post},
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traits::Crud,
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};
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use lemmy_db_views::{post_view::PostQuery, structs::PostView};
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use lemmy_db_views_actor::structs::{CommunityModeratorView, CommunityView};
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use lemmy_utils::error::{LemmyError, LemmyErrorExt, LemmyErrorType};
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#[tracing::instrument(skip(context))]
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pub async fn get_post(
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data: Query<GetPost>,
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context: Data<LemmyContext>,
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) -> Result<Json<GetPostResponse>, LemmyError> {
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let local_user_view = local_user_view_from_jwt_opt(data.auth.as_ref(), &context).await;
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let local_site = LocalSite::read(&mut context.pool()).await?;
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check_private_instance(&local_user_view, &local_site)?;
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let person_id = local_user_view.as_ref().map(|u| u.person.id);
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// I'd prefer fetching the post_view by a comment join, but it adds a lot of boilerplate
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let post_id = if let Some(id) = data.id {
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id
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} else if let Some(comment_id) = data.comment_id {
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Comment::read(&mut context.pool(), comment_id)
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.await
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.with_lemmy_type(LemmyErrorType::CouldntFindPost)?
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.post_id
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} else {
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Err(LemmyErrorType::CouldntFindPost)?
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};
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// Check to see if the person is a mod or admin, to show deleted / removed
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let community_id = Post::read(&mut context.pool(), post_id).await?.community_id;
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let is_mod_or_admin = is_mod_or_admin_opt(
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&mut context.pool(),
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local_user_view.as_ref(),
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Some(community_id),
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)
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.await
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.is_ok();
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let post_view = PostView::read(
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&mut context.pool(),
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post_id,
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person_id,
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Some(is_mod_or_admin),
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)
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.await
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.with_lemmy_type(LemmyErrorType::CouldntFindPost)?;
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// Mark the post as read
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let post_id = post_view.post.id;
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if let Some(person_id) = person_id {
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mark_post_as_read(person_id, post_id, &mut context.pool()).await?;
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}
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// Necessary for the sidebar subscribed
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let community_view = CommunityView::read(
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&mut context.pool(),
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community_id,
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person_id,
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Some(is_mod_or_admin),
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)
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.await
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.with_lemmy_type(LemmyErrorType::CouldntFindCommunity)?;
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// Insert into PersonPostAggregates
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// to update the read_comments count
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if let Some(person_id) = person_id {
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let read_comments = post_view.counts.comments;
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let person_post_agg_form = PersonPostAggregatesForm {
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person_id,
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post_id,
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read_comments,
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..PersonPostAggregatesForm::default()
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};
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PersonPostAggregates::upsert(&mut context.pool(), &person_post_agg_form)
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.await
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.with_lemmy_type(LemmyErrorType::CouldntFindPost)?;
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}
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let moderators = CommunityModeratorView::for_community(&mut context.pool(), community_id).await?;
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// Fetch the cross_posts
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let cross_posts = if let Some(url) = &post_view.post.url {
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let mut x_posts = PostQuery {
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url_search: Some(url.inner().as_str().into()),
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..Default::default()
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}
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.list(&mut context.pool())
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.await?;
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// Don't return this post as one of the cross_posts
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x_posts.retain(|x| x.post.id != post_id);
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x_posts
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} else {
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Vec::new()
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};
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// Return the jwt
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Ok(Json(GetPostResponse {
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post_view,
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community_view,
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moderators,
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cross_posts,
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}))
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}
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