crates/api/src/post_report.rs

   1 use crate::Perform;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{
   4   blocking,
   5   check_community_ban,
   6   collect_moderated_communities,
   7   get_local_user_view_from_jwt,
   8   is_mod_or_admin,
   9   post::{
  10     CreatePostReport,
  11     CreatePostReportResponse,
  12     ListPostReports,
  13     ListPostReportsResponse,
  14     ResolvePostReport,
  15     ResolvePostReportResponse,
  16   },
  17 };
  18 use lemmy_db_queries::Reportable;
  19 use lemmy_db_schema::source::post_report::{PostReport, PostReportForm};
  20 use lemmy_db_views::{
  21   post_report_view::{PostReportQueryBuilder, PostReportView},
  22   post_view::PostView,
  23 };
  24 use lemmy_utils::{ApiError, ConnectionId, LemmyError};
  25 use lemmy_websocket::{
  26   messages::{SendModRoomMessage, SendUserRoomMessage},
  27   LemmyContext,
  28   UserOperation,
  29 };
  30
  31 /// Creates a post report and notifies the moderators of the community
  32 #[async_trait::async_trait(?Send)]
  33 impl Perform for CreatePostReport {
  34   type Response = CreatePostReportResponse;
  35
  36   async fn perform(
  37     &self,
  38     context: &Data<LemmyContext>,
  39     websocket_id: Option<ConnectionId>,
  40   ) -> Result<CreatePostReportResponse, LemmyError> {
  41     let data: &CreatePostReport = self;
  42     let local_user_view =
  43       get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
  44
  45     // check size of report and check for whitespace
  46     let reason = data.reason.trim();
  47     if reason.is_empty() {
  48       return Err(ApiError::err("report_reason_required").into());
  49     }
  50     if reason.chars().count() > 1000 {
  51       return Err(ApiError::err("report_too_long").into());
  52     }
  53
  54     let person_id = local_user_view.person.id;
  55     let post_id = data.post_id;
  56     let post_view = blocking(context.pool(), move |conn| {
  57       PostView::read(conn, post_id, None)
  58     })
  59     .await??;
  60
  61     check_community_ban(person_id, post_view.community.id, context.pool()).await?;
  62
  63     let report_form = PostReportForm {
  64       creator_id: person_id,
  65       post_id,
  66       original_post_name: post_view.post.name,
  67       original_post_url: post_view.post.url,
  68       original_post_body: post_view.post.body,
  69       reason: data.reason.to_owned(),
  70     };
  71
  72     let report = blocking(context.pool(), move |conn| {
  73       PostReport::report(conn, &report_form)
  74     })
  75     .await?
  76     .map_err(|_| ApiError::err("couldnt_create_report"))?;
  77
  78     let res = CreatePostReportResponse { success: true };
  79
  80     context.chat_server().do_send(SendUserRoomMessage {
  81       op: UserOperation::CreatePostReport,
  82       response: res.clone(),
  83       local_recipient_id: local_user_view.local_user.id,
  84       websocket_id,
  85     });
  86
  87     context.chat_server().do_send(SendModRoomMessage {
  88       op: UserOperation::CreatePostReport,
  89       response: report,
  90       community_id: post_view.community.id,
  91       websocket_id,
  92     });
  93
  94     Ok(res)
  95   }
  96 }
  97
  98 /// Resolves or unresolves a post report and notifies the moderators of the community
  99 #[async_trait::async_trait(?Send)]
 100 impl Perform for ResolvePostReport {
 101   type Response = ResolvePostReportResponse;
 102
 103   async fn perform(
 104     &self,
 105     context: &Data<LemmyContext>,
 106     websocket_id: Option<ConnectionId>,
 107   ) -> Result<ResolvePostReportResponse, LemmyError> {
 108     let data: &ResolvePostReport = self;
 109     let local_user_view =
 110       get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
 111
 112     let report_id = data.report_id;
 113     let report = blocking(context.pool(), move |conn| {
 114       PostReportView::read(conn, report_id)
 115     })
 116     .await??;
 117
 118     let person_id = local_user_view.person.id;
 119     is_mod_or_admin(context.pool(), person_id, report.community.id).await?;
 120
 121     let resolved = data.resolved;
 122     let resolve_fun = move |conn: &'_ _| {
 123       if resolved {
 124         PostReport::resolve(conn, report_id, person_id)
 125       } else {
 126         PostReport::unresolve(conn, report_id, person_id)
 127       }
 128     };
 129
 130     let res = ResolvePostReportResponse {
 131       report_id,
 132       resolved: true,
 133     };
 134
 135     if blocking(context.pool(), resolve_fun).await?.is_err() {
 136       return Err(ApiError::err("couldnt_resolve_report").into());
 137     };
 138
 139     context.chat_server().do_send(SendModRoomMessage {
 140       op: UserOperation::ResolvePostReport,
 141       response: res.clone(),
 142       community_id: report.community.id,
 143       websocket_id,
 144     });
 145
 146     Ok(res)
 147   }
 148 }
 149
 150 /// Lists post reports for a community if an id is supplied
 151 /// or returns all post reports for communities a user moderates
 152 #[async_trait::async_trait(?Send)]
 153 impl Perform for ListPostReports {
 154   type Response = ListPostReportsResponse;
 155
 156   async fn perform(
 157     &self,
 158     context: &Data<LemmyContext>,
 159     websocket_id: Option<ConnectionId>,
 160   ) -> Result<ListPostReportsResponse, LemmyError> {
 161     let data: &ListPostReports = self;
 162     let local_user_view =
 163       get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
 164
 165     let person_id = local_user_view.person.id;
 166     let community_id = data.community;
 167     let community_ids =
 168       collect_moderated_communities(person_id, community_id, context.pool()).await?;
 169
 170     let page = data.page;
 171     let limit = data.limit;
 172     let posts = blocking(context.pool(), move |conn| {
 173       PostReportQueryBuilder::create(conn)
 174         .community_ids(community_ids)
 175         .page(page)
 176         .limit(limit)
 177         .list()
 178     })
 179     .await??;
 180
 181     let res = ListPostReportsResponse { posts };
 182
 183     context.chat_server().do_send(SendUserRoomMessage {
 184       op: UserOperation::ListPostReports,
 185       response: res.clone(),
 186       local_recipient_id: local_user_view.local_user.id,
 187       websocket_id,
 188     });
 189
 190     Ok(res)
 191   }
 192 }