crates/api_crud/src/post/read.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{blocking, get_local_user_view_from_jwt_opt, mark_post_as_read, post::*};
   4 use lemmy_apub::get_actor_id_from_name;
   5 use lemmy_apub_lib::webfinger::WebfingerType;
   6 use lemmy_db_schema::{
   7   from_opt_str_to_opt_enum,
   8   traits::DeleteableOrRemoveable,
   9   ListingType,
  10   SortType,
  11 };
  12 use lemmy_db_views::{
  13   comment_view::CommentQueryBuilder,
  14   post_view::{PostQueryBuilder, PostView},
  15 };
  16 use lemmy_db_views_actor::{
  17   community_moderator_view::CommunityModeratorView,
  18   community_view::CommunityView,
  19 };
  20 use lemmy_utils::{ApiError, ConnectionId, LemmyError};
  21 use lemmy_websocket::{messages::GetPostUsersOnline, LemmyContext};
  22
  23 #[async_trait::async_trait(?Send)]
  24 impl PerformCrud for GetPost {
  25   type Response = GetPostResponse;
  26
  27   async fn perform(
  28     &self,
  29     context: &Data<LemmyContext>,
  30     _websocket_id: Option<ConnectionId>,
  31   ) -> Result<GetPostResponse, LemmyError> {
  32     let data: &GetPost = self;
  33     let local_user_view =
  34       get_local_user_view_from_jwt_opt(&data.auth, context.pool(), context.secret()).await?;
  35
  36     let show_bot_accounts = local_user_view
  37       .as_ref()
  38       .map(|t| t.local_user.show_bot_accounts);
  39     let person_id = local_user_view.map(|u| u.person.id);
  40
  41     let id = data.id;
  42     let mut post_view = blocking(context.pool(), move |conn| {
  43       PostView::read(conn, id, person_id)
  44     })
  45     .await?
  46     .map_err(|e| ApiError::err("couldnt_find_post", e))?;
  47
  48     // Mark the post as read
  49     if let Some(person_id) = person_id {
  50       mark_post_as_read(person_id, id, context.pool()).await?;
  51     }
  52
  53     let id = data.id;
  54     let mut comments = blocking(context.pool(), move |conn| {
  55       CommentQueryBuilder::create(conn)
  56         .my_person_id(person_id)
  57         .show_bot_accounts(show_bot_accounts)
  58         .post_id(id)
  59         .limit(9999)
  60         .list()
  61     })
  62     .await??;
  63
  64     // Necessary for the sidebar
  65     let community_id = post_view.community.id;
  66     let mut community_view = blocking(context.pool(), move |conn| {
  67       CommunityView::read(conn, community_id, person_id)
  68     })
  69     .await?
  70     .map_err(|e| ApiError::err("couldnt_find_community", e))?;
  71
  72     // Blank out deleted or removed info for non-logged in users
  73     if person_id.is_none() {
  74       if post_view.post.deleted || post_view.post.removed {
  75         post_view.post = post_view.post.blank_out_deleted_or_removed_info();
  76       }
  77
  78       for cv in comments
  79         .iter_mut()
  80         .filter(|cv| cv.comment.deleted || cv.comment.removed)
  81       {
  82         cv.comment = cv.to_owned().comment.blank_out_deleted_or_removed_info();
  83       }
  84       if community_view.community.deleted || community_view.community.removed {
  85         community_view.community = community_view.community.blank_out_deleted_or_removed_info();
  86       }
  87     }
  88
  89     let moderators = blocking(context.pool(), move |conn| {
  90       CommunityModeratorView::for_community(conn, community_id)
  91     })
  92     .await??;
  93
  94     let online = context
  95       .chat_server()
  96       .send(GetPostUsersOnline { post_id: data.id })
  97       .await
  98       .unwrap_or(1);
  99
 100     // Return the jwt
 101     Ok(GetPostResponse {
 102       post_view,
 103       community_view,
 104       comments,
 105       moderators,
 106       online,
 107     })
 108   }
 109 }
 110
 111 #[async_trait::async_trait(?Send)]
 112 impl PerformCrud for GetPosts {
 113   type Response = GetPostsResponse;
 114
 115   async fn perform(
 116     &self,
 117     context: &Data<LemmyContext>,
 118     _websocket_id: Option<ConnectionId>,
 119   ) -> Result<GetPostsResponse, LemmyError> {
 120     let data: &GetPosts = self;
 121     let local_user_view =
 122       get_local_user_view_from_jwt_opt(&data.auth, context.pool(), context.secret()).await?;
 123
 124     let person_id = local_user_view.to_owned().map(|l| l.person.id);
 125
 126     let show_nsfw = local_user_view.as_ref().map(|t| t.local_user.show_nsfw);
 127     let show_bot_accounts = local_user_view
 128       .as_ref()
 129       .map(|t| t.local_user.show_bot_accounts);
 130     let show_read_posts = local_user_view
 131       .as_ref()
 132       .map(|t| t.local_user.show_read_posts);
 133
 134     let sort: Option<SortType> = from_opt_str_to_opt_enum(&data.sort);
 135     let listing_type: Option<ListingType> = from_opt_str_to_opt_enum(&data.type_);
 136
 137     let page = data.page;
 138     let limit = data.limit;
 139     let community_id = data.community_id;
 140     let community_actor_id = if let Some(name) = &data.community_name {
 141       get_actor_id_from_name(WebfingerType::Group, name, context)
 142         .await
 143         .ok()
 144     } else {
 145       None
 146     };
 147     let saved_only = data.saved_only;
 148
 149     let mut posts = blocking(context.pool(), move |conn| {
 150       PostQueryBuilder::create(conn)
 151         .listing_type(listing_type)
 152         .sort(sort)
 153         .show_nsfw(show_nsfw)
 154         .show_bot_accounts(show_bot_accounts)
 155         .show_read_posts(show_read_posts)
 156         .community_id(community_id)
 157         .community_actor_id(community_actor_id)
 158         .saved_only(saved_only)
 159         .my_person_id(person_id)
 160         .page(page)
 161         .limit(limit)
 162         .list()
 163     })
 164     .await?
 165     .map_err(|e| ApiError::err("couldnt_get_posts", e))?;
 166
 167     // Blank out deleted or removed info for non-logged in users
 168     if person_id.is_none() {
 169       for pv in posts
 170         .iter_mut()
 171         .filter(|p| p.post.deleted || p.post.removed)
 172       {
 173         pv.post = pv.to_owned().post.blank_out_deleted_or_removed_info();
 174       }
 175
 176       for pv in posts
 177         .iter_mut()
 178         .filter(|p| p.community.deleted || p.community.removed)
 179       {
 180         pv.community = pv.to_owned().community.blank_out_deleted_or_removed_info();
 181       }
 182     }
 183
 184     Ok(GetPostsResponse { posts })
 185   }
 186 }