mirror of https://github.com/LemmyNet/lemmy.git
112 lines
3.0 KiB
Rust
112 lines
3.0 KiB
Rust
use crate::Perform;
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use actix_web::web::Data;
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use lemmy_api_common::{
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post::{CreatePostLike, PostResponse},
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utils::{
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check_community_ban,
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check_community_deleted_or_removed,
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check_downvotes_enabled,
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get_local_user_view_from_jwt,
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mark_post_as_read,
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},
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websocket::{send::send_post_ws_message, UserOperation},
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LemmyContext,
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};
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use lemmy_apub::{
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fetcher::post_or_comment::PostOrComment,
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objects::post::ApubPost,
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protocol::activities::voting::{
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undo_vote::UndoVote,
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vote::{Vote, VoteType},
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},
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};
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use lemmy_db_schema::{
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source::{
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local_site::LocalSite,
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post::{Post, PostLike, PostLikeForm},
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},
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traits::{Crud, Likeable},
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};
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use lemmy_utils::{error::LemmyError, ConnectionId};
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#[async_trait::async_trait(?Send)]
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impl Perform for CreatePostLike {
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type Response = PostResponse;
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#[tracing::instrument(skip(context, websocket_id))]
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async fn perform(
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&self,
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context: &Data<LemmyContext>,
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websocket_id: Option<ConnectionId>,
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) -> Result<PostResponse, LemmyError> {
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let data: &CreatePostLike = self;
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let local_user_view =
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get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
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let local_site = LocalSite::read(context.pool()).await?;
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// Don't do a downvote if site has downvotes disabled
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check_downvotes_enabled(data.score, &local_site)?;
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// Check for a community ban
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let post_id = data.post_id;
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let post: ApubPost = Post::read(context.pool(), post_id).await?.into();
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check_community_ban(local_user_view.person.id, post.community_id, context.pool()).await?;
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check_community_deleted_or_removed(post.community_id, context.pool()).await?;
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let like_form = PostLikeForm {
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post_id: data.post_id,
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person_id: local_user_view.person.id,
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score: data.score,
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};
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// Remove any likes first
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let person_id = local_user_view.person.id;
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PostLike::remove(context.pool(), person_id, post_id).await?;
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let community_id = post.community_id;
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let object = PostOrComment::Post(Box::new(post));
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// Only add the like if the score isnt 0
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let do_add = like_form.score != 0 && (like_form.score == 1 || like_form.score == -1);
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if do_add {
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let like_form2 = like_form.clone();
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PostLike::like(context.pool(), &like_form2)
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.await
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.map_err(|e| LemmyError::from_error_message(e, "couldnt_like_post"))?;
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Vote::send(
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&object,
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&local_user_view.person.clone().into(),
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community_id,
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like_form.score.try_into()?,
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context,
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)
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.await?;
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} else {
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// API doesn't distinguish between Undo/Like and Undo/Dislike
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UndoVote::send(
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&object,
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&local_user_view.person.clone().into(),
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community_id,
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VoteType::Like,
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context,
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)
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.await?;
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}
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// Mark the post as read
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mark_post_as_read(person_id, post_id, context.pool()).await?;
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send_post_ws_message(
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data.post_id,
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UserOperation::CreatePostLike,
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websocket_id,
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Some(local_user_view.person.id),
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context,
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)
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.await
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}
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}
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