Fixing issue with mods not being able to view reports. Fixes #4172 (#4174)

* Fixing issue with mods not being able to view reports. Fixes #4172

* Addressing PR comments.

crates/api/src/comment_report/list.rs

@@ -2,7 +2,7 @@ use actix_web::web::{Data, Json, Query};
 use lemmy_api_common::{
   comment::{ListCommentReports, ListCommentReportsResponse},
   context::LemmyContext,
-  utils::check_community_mod_action_opt,
+  utils::check_community_mod_of_any_or_admin_action,
 };
 use lemmy_db_views::{comment_report_view::CommentReportQuery, structs::LocalUserView};
 use lemmy_utils::error::LemmyError;
@@ -18,7 +18,7 @@ pub async fn list_comment_reports(
   let community_id = data.community_id;
   let unresolved_only = data.unresolved_only.unwrap_or_default();
 
-  check_community_mod_action_opt(&local_user_view, community_id, &mut context.pool()).await?;
+  check_community_mod_of_any_or_admin_action(&local_user_view, &mut context.pool()).await?;
 
   let page = data.page;
   let limit = data.limit;

crates/api/src/local_user/report_count.rs

@@ -2,7 +2,7 @@ use actix_web::web::{Data, Json, Query};
 use lemmy_api_common::{
   context::LemmyContext,
   person::{GetReportCount, GetReportCountResponse},
-  utils::check_community_mod_action_opt,
+  utils::check_community_mod_of_any_or_admin_action,
 };
 use lemmy_db_views::structs::{
   CommentReportView,
@@ -22,7 +22,7 @@ pub async fn report_count(
   let admin = local_user_view.local_user.admin;
   let community_id = data.community_id;
 
-  check_community_mod_action_opt(&local_user_view, community_id, &mut context.pool()).await?;
+  check_community_mod_of_any_or_admin_action(&local_user_view, &mut context.pool()).await?;
 
   let comment_reports =
     CommentReportView::get_report_count(&mut context.pool(), person_id, admin, community_id)

crates/api/src/post_report/list.rs

@@ -2,7 +2,7 @@ use actix_web::web::{Data, Json, Query};
 use lemmy_api_common::{
   context::LemmyContext,
   post::{ListPostReports, ListPostReportsResponse},
-  utils::check_community_mod_action_opt,
+  utils::check_community_mod_of_any_or_admin_action,
 };
 use lemmy_db_views::{post_report_view::PostReportQuery, structs::LocalUserView};
 use lemmy_utils::error::LemmyError;
@@ -18,7 +18,7 @@ pub async fn list_post_reports(
   let community_id = data.community_id;
   let unresolved_only = data.unresolved_only.unwrap_or_default();
 
-  check_community_mod_action_opt(&local_user_view, community_id, &mut context.pool()).await?;
+  check_community_mod_of_any_or_admin_action(&local_user_view, &mut context.pool()).await?;
 
   let page = data.page;
   let limit = data.limit;

crates/api/src/site/mod_log.rs

@@ -2,7 +2,7 @@ use actix_web::web::{Data, Json, Query};
 use lemmy_api_common::{
   context::LemmyContext,
   site::{GetModlog, GetModlogResponse},
-  utils::{check_community_mod_action_opt, check_private_instance, is_admin},
+  utils::{check_community_mod_of_any_or_admin_action, check_private_instance},
 };
 use lemmy_db_schema::{source::local_site::LocalSite, ModlogActionType};
 use lemmy_db_views::structs::LocalUserView;
@@ -41,11 +41,9 @@ pub async fn get_mod_log(
   let community_id = data.community_id;
 
   let is_mod_or_admin = if let Some(local_user_view) = local_user_view {
-    let is_mod = community_id.is_some()
-      && check_community_mod_action_opt(&local_user_view, community_id, &mut context.pool())
-        .await
-        .is_ok();
-    is_mod || is_admin(&local_user_view).is_ok()
+    check_community_mod_of_any_or_admin_action(&local_user_view, &mut context.pool())
+      .await
+      .is_ok()
   } else {
     false
   };

crates/api_common/src/utils.rs

@@ -78,6 +78,26 @@ pub async fn is_mod_or_admin_opt(
   }
 }
 
+/// Check that a person is either a mod of any community, or an admin
+///
+/// Should only be used for read operations
+#[tracing::instrument(skip_all)]
+pub async fn check_community_mod_of_any_or_admin_action(
+  local_user_view: &LocalUserView,
+  pool: &mut DbPool<'_>,
+) -> LemmyResult<()> {
+  let person = &local_user_view.person;
+
+  check_user_valid(person)?;
+
+  let is_mod_of_any_or_admin = CommunityView::is_mod_of_any_or_admin(pool, person.id).await?;
+  if !is_mod_of_any_or_admin {
+    Err(LemmyErrorType::NotAModOrAdmin)?
+  } else {
+    Ok(())
+  }
+}
+
 pub fn is_admin(local_user_view: &LocalUserView) -> Result<(), LemmyError> {
   check_user_valid(&local_user_view.person)?;
   if !local_user_view.local_user.admin {
@@ -199,19 +219,6 @@ pub async fn check_community_mod_action(
   Ok(())
 }
 
-pub async fn check_community_mod_action_opt(
-  local_user_view: &LocalUserView,
-  community_id: Option<CommunityId>,
-  pool: &mut DbPool<'_>,
-) -> LemmyResult<()> {
-  if let Some(community_id) = community_id {
-    check_community_mod_action(&local_user_view.person, community_id, false, pool).await?;
-  } else {
-    is_admin(local_user_view)?;
-  }
-  Ok(())
-}
-
 pub fn check_post_deleted_or_removed(post: &Post) -> Result<(), LemmyError> {
   if post.deleted || post.removed {
     Err(LemmyErrorType::Deleted)?

crates/db_views_actor/src/community_moderator_view.rs

@@ -27,6 +27,20 @@ impl CommunityModeratorView {
     .get_result::<bool>(conn)
     .await
   }
+
+  pub(crate) async fn is_community_moderator_of_any(
+    pool: &mut DbPool<'_>,
+    find_person_id: PersonId,
+  ) -> Result<bool, Error> {
+    use lemmy_db_schema::schema::community_moderator::dsl::{community_moderator, person_id};
+    let conn = &mut get_conn(pool).await?;
+    select(exists(
+      community_moderator.filter(person_id.eq(find_person_id)),
+    ))
+    .get_result::<bool>(conn)
+    .await
+  }
+
   pub async fn for_community(
     pool: &mut DbPool<'_>,
     community_id: CommunityId,

crates/db_views_actor/src/community_view.rs

@@ -194,6 +194,20 @@ impl CommunityView {
 
     PersonView::is_admin(pool, person_id).await
   }
+
+  /// Checks if a person is an admin, or moderator of any community.
+  pub async fn is_mod_of_any_or_admin(
+    pool: &mut DbPool<'_>,
+    person_id: PersonId,
+  ) -> Result<bool, Error> {
+    let is_mod_of_any =
+      CommunityModeratorView::is_community_moderator_of_any(pool, person_id).await?;
+    if is_mod_of_any {
+      return Ok(true);
+    }
+
+    PersonView::is_admin(pool, person_id).await
+  }
 }
 
 #[derive(Default)]