Add site.content_warning, local_site.default_post_listing_mode (#4393)

* Include local_site.content_warning setting for showing nsfw by default

* Add community setting `only_followers_can_vote`

* clippy

* add auto_expand_images site setting

* cleanup

* add missing api params

* postquery/communityquery changes

* clippy

* change error

* replace auto_expand_images with default_site_post_listing_mode

* change post/community query params

* get rid of only_followers_can_vote

* machete

* fix

* clippy

* revert remaining vote changes

* remove dead code

* remove unused var

* fmt

Cargo.lock

@@ -2683,6 +2683,7 @@ dependencies = [
  "lemmy_db_views",
  "lemmy_utils",
  "tokio",
+ "url",
 ]
 
 [[package]]
@@ -2743,6 +2744,7 @@ dependencies = [
  "tokio",
  "tracing",
  "ts-rs",
+ "url",
 ]
 
 [[package]]
@@ -2761,6 +2763,7 @@ dependencies = [
  "strum_macros",
  "tokio",
  "ts-rs",
+ "url",
 ]
 
 [[package]]

crates/api_common/src/site.rs

@@ -10,6 +10,7 @@ use lemmy_db_schema::{
   },
   ListingType,
   ModlogActionType,
+  PostListingMode,
   RegistrationMode,
   SearchType,
   SortType,
@@ -187,6 +188,8 @@ pub struct CreateSite {
   pub blocked_instances: Option<Vec<String>>,
   pub taglines: Option<Vec<String>>,
   pub registration_mode: Option<RegistrationMode>,
+  pub content_warning: Option<String>,
+  pub default_post_listing_mode: Option<PostListingMode>,
 }
 
 #[skip_serializing_none]
@@ -265,6 +268,11 @@ pub struct EditSite {
   pub registration_mode: Option<RegistrationMode>,
   /// Whether to email admins for new reports.
   pub reports_email_admins: Option<bool>,
+  /// If present, nsfw content is visible by default. Should be displayed by frontends/clients
+  /// when the site is first opened by a user.
+  pub content_warning: Option<String>,
+  /// Default value for [LocalUser.post_listing_mode]
+  pub default_post_listing_mode: Option<PostListingMode>,
 }
 
 #[derive(Debug, Serialize, Deserialize, Clone)]

crates/api_crud/src/community/list.rs

@@ -4,8 +4,7 @@ use lemmy_api_common::{
   context::LemmyContext,
   utils::{check_private_instance, is_admin},
 };
-use lemmy_db_schema::source::local_site::LocalSite;
+use lemmy_db_views::structs::{LocalUserView, SiteView};
-use lemmy_db_views::structs::LocalUserView;
 use lemmy_db_views_actor::community_view::CommunityQuery;
 use lemmy_utils::error::LemmyError;
 
@@ -15,13 +14,13 @@ pub async fn list_communities(
   context: Data<LemmyContext>,
   local_user_view: Option<LocalUserView>,
 ) -> Result<Json<ListCommunitiesResponse>, LemmyError> {
-  let local_site = LocalSite::read(&mut context.pool()).await?;
+  let local_site = SiteView::read_local(&mut context.pool()).await?;
   let is_admin = local_user_view
     .as_ref()
     .map(|luv| is_admin(luv).is_ok())
     .unwrap_or_default();
 
-  check_private_instance(&local_user_view, &local_site)?;
+  check_private_instance(&local_user_view, &local_site.local_site)?;
 
   let sort = data.sort;
   let listing_type = data.type_;
@@ -39,7 +38,7 @@ pub async fn list_communities(
     is_mod_or_admin: is_admin,
     ..Default::default()
   }
-  .list(&mut context.pool())
+  .list(&local_site.site, &mut context.pool())
   .await?;
 
   // Return the jwt

crates/api_crud/src/post/read.rs

@@ -6,12 +6,12 @@ use lemmy_api_common::{
 };
 use lemmy_db_schema::{
   aggregates::structs::{PersonPostAggregates, PersonPostAggregatesForm},
-  source::{comment::Comment, local_site::LocalSite, post::Post},
+  source::{comment::Comment, post::Post},
   traits::Crud,
 };
 use lemmy_db_views::{
   post_view::PostQuery,
-  structs::{LocalUserView, PostView},
+  structs::{LocalUserView, PostView, SiteView},
 };
 use lemmy_db_views_actor::structs::{CommunityModeratorView, CommunityView};
 use lemmy_utils::error::{LemmyError, LemmyErrorExt, LemmyErrorType};
@@ -22,9 +22,9 @@ pub async fn get_post(
   context: Data<LemmyContext>,
   local_user_view: Option<LocalUserView>,
 ) -> Result<Json<GetPostResponse>, LemmyError> {
-  let local_site = LocalSite::read(&mut context.pool()).await?;
+  let local_site = SiteView::read_local(&mut context.pool()).await?;
 
-  check_private_instance(&local_user_view, &local_site)?;
+  check_private_instance(&local_user_view, &local_site.local_site)?;
 
   let person_id = local_user_view.as_ref().map(|u| u.person.id);
 
@@ -93,7 +93,7 @@ pub async fn get_post(
       url_search: Some(url.inner().as_str().into()),
       ..Default::default()
     }
-    .list(&mut context.pool())
+    .list(&local_site.site, &mut context.pool())
     .await?;
 
     // Don't return this post as one of the cross_posts

crates/api_crud/src/site/create.rs

@@ -73,6 +73,7 @@ pub async fn create_site(
     inbox_url,
     private_key: Some(Some(keypair.private_key)),
     public_key: Some(keypair.public_key),
+    content_warning: diesel_option_overwrite(data.content_warning.clone()),
     ..Default::default()
   };
 
@@ -101,6 +102,7 @@ pub async fn create_site(
     federation_enabled: data.federation_enabled,
     captcha_enabled: data.captcha_enabled,
     captcha_difficulty: data.captcha_difficulty.clone(),
+    default_post_listing_mode: data.default_post_listing_mode,
     ..Default::default()
   };
 
@@ -568,6 +570,8 @@ mod tests {
       blocked_instances: None,
       taglines: None,
       registration_mode: site_registration_mode,
+      content_warning: None,
+      default_post_listing_mode: None,
     }
   }
 }

crates/api_crud/src/site/update.rs

@@ -71,6 +71,7 @@ pub async fn update_site(
     description: diesel_option_overwrite(data.description.clone()),
     icon,
     banner,
+    content_warning: diesel_option_overwrite(data.content_warning.clone()),
     updated: Some(Some(naive_now())),
     ..Default::default()
   };
@@ -101,6 +102,7 @@ pub async fn update_site(
     captcha_enabled: data.captcha_enabled,
     captcha_difficulty: data.captcha_difficulty.clone(),
     reports_email_admins: data.reports_email_admins,
+    default_post_listing_mode: data.default_post_listing_mode,
     ..Default::default()
   };
 
@@ -566,6 +568,8 @@ mod tests {
       taglines: None,
       registration_mode: site_registration_mode,
       reports_email_admins: None,
+      content_warning: None,
+      default_post_listing_mode: None,
     }
   }
 }

crates/api_crud/src/user/create.rs

@@ -142,6 +142,7 @@ pub async fn register(
     .show_nsfw(Some(data.show_nsfw))
     .accepted_application(accepted_application)
     .default_listing_type(Some(local_site.default_post_listing_type))
+    .post_listing_mode(Some(local_site.default_post_listing_mode))
     .interface_language(language_tag)
     // If its the initial site setup, they are an admin
     .admin(Some(!local_site.site_setup))

crates/apub/src/api/list_posts.rs

@@ -10,10 +10,10 @@ use lemmy_api_common::{
   post::{GetPosts, GetPostsResponse},
   utils::check_private_instance,
 };
-use lemmy_db_schema::source::{community::Community, local_site::LocalSite};
+use lemmy_db_schema::source::community::Community;
 use lemmy_db_views::{
   post_view::PostQuery,
-  structs::{LocalUserView, PaginationCursor},
+  structs::{LocalUserView, PaginationCursor, SiteView},
 };
 use lemmy_utils::error::{LemmyError, LemmyErrorExt, LemmyErrorType};
 
@@ -23,9 +23,9 @@ pub async fn list_posts(
   context: Data<LemmyContext>,
   local_user_view: Option<LocalUserView>,
 ) -> Result<Json<GetPostsResponse>, LemmyError> {
-  let local_site = LocalSite::read(&mut context.pool()).await?;
+  let local_site = SiteView::read_local(&mut context.pool()).await?;
 
-  check_private_instance(&local_user_view, &local_site)?;
+  check_private_instance(&local_user_view, &local_site.local_site)?;
 
   let sort = data.sort;
 
@@ -47,7 +47,7 @@ pub async fn list_posts(
 
   let listing_type = Some(listing_type_with_default(
     data.type_,
-    &local_site,
+    &local_site.local_site,
     community_id,
   )?);
   // parse pagination token
@@ -70,7 +70,7 @@ pub async fn list_posts(
     limit,
     ..Default::default()
   }
-  .list(&mut context.pool())
+  .list(&local_site.site, &mut context.pool())
   .await
   .with_lemmy_type(LemmyErrorType::CouldntGetPosts)?;
 

crates/apub/src/api/read_person.rs

@@ -6,11 +6,12 @@ use lemmy_api_common::{
   person::{GetPersonDetails, GetPersonDetailsResponse},
   utils::{check_private_instance, read_site_for_actor},
 };
-use lemmy_db_schema::{
+use lemmy_db_schema::{source::person::Person, utils::post_to_comment_sort_type};
-  source::{local_site::LocalSite, person::Person},
+use lemmy_db_views::{
-  utils::post_to_comment_sort_type,
+  comment_view::CommentQuery,
+  post_view::PostQuery,
+  structs::{LocalUserView, SiteView},
 };
-use lemmy_db_views::{comment_view::CommentQuery, post_view::PostQuery, structs::LocalUserView};
 use lemmy_db_views_actor::structs::{CommunityModeratorView, PersonView};
 use lemmy_utils::error::{LemmyError, LemmyErrorExt2, LemmyErrorType};
 
@@ -25,9 +26,9 @@ pub async fn read_person(
     Err(LemmyErrorType::NoIdGiven)?
   }
 
-  let local_site = LocalSite::read(&mut context.pool()).await?;
+  let local_site = SiteView::read_local(&mut context.pool()).await?;
 
-  check_private_instance(&local_user_view, &local_site)?;
+  check_private_instance(&local_user_view, &local_site.local_site)?;
 
   let person_details_id = match data.person_id {
     Some(id) => id,
@@ -70,7 +71,7 @@ pub async fn read_person(
     creator_id,
     ..Default::default()
   }
-  .list(&mut context.pool())
+  .list(&local_site.site, &mut context.pool())
   .await?;
 
   let comments = CommentQuery {

crates/apub/src/api/search.rs

@@ -6,12 +6,12 @@ use lemmy_api_common::{
   site::{Search, SearchResponse},
   utils::{check_private_instance, is_admin},
 };
-use lemmy_db_schema::{
+use lemmy_db_schema::{source::community::Community, utils::post_to_comment_sort_type, SearchType};
-  source::{community::Community, local_site::LocalSite},
+use lemmy_db_views::{
-  utils::post_to_comment_sort_type,
+  comment_view::CommentQuery,
-  SearchType,
+  post_view::PostQuery,
+  structs::{LocalUserView, SiteView},
 };
-use lemmy_db_views::{comment_view::CommentQuery, post_view::PostQuery, structs::LocalUserView};
 use lemmy_db_views_actor::{community_view::CommunityQuery, person_view::PersonQuery};
 use lemmy_utils::error::LemmyError;
 
@@ -21,9 +21,9 @@ pub async fn search(
   context: Data<LemmyContext>,
   local_user_view: Option<LocalUserView>,
 ) -> Result<Json<SearchResponse>, LemmyError> {
-  let local_site = LocalSite::read(&mut context.pool()).await?;
+  let local_site = SiteView::read_local(&mut context.pool()).await?;
 
-  check_private_instance(&local_user_view, &local_site)?;
+  check_private_instance(&local_user_view, &local_site.local_site)?;
 
   let is_admin = local_user_view
     .as_ref()
@@ -68,7 +68,7 @@ pub async fn search(
         limit: (limit),
         ..Default::default()
       }
-      .list(&mut context.pool())
+      .list(&local_site.site, &mut context.pool())
       .await?;
     }
     SearchType::Comments => {
@@ -97,7 +97,7 @@ pub async fn search(
         limit: (limit),
         ..Default::default()
       }
-      .list(&mut context.pool())
+      .list(&local_site.site, &mut context.pool())
       .await?;
     }
     SearchType::Users => {
@@ -128,7 +128,7 @@ pub async fn search(
         limit: (limit),
         ..Default::default()
       }
-      .list(&mut context.pool())
+      .list(&local_site.site, &mut context.pool())
       .await?;
 
       let q = data.q.clone();
@@ -162,7 +162,7 @@ pub async fn search(
           limit: (limit),
           ..Default::default()
         }
-        .list(&mut context.pool())
+        .list(&local_site.site, &mut context.pool())
         .await?
       };
 
@@ -192,7 +192,7 @@ pub async fn search(
         limit: (limit),
         ..Default::default()
       }
-      .list(&mut context.pool())
+      .list(&local_site.site, &mut context.pool())
       .await?;
     }
   };

crates/apub/src/objects/instance.rs

@@ -106,6 +106,7 @@ impl Object for ApubSite {
       outbox: Url::parse(&format!("{}/site_outbox", self.actor_id))?,
       public_key: self.public_key(),
       language,
+      content_warning: self.content_warning.clone(),
       published: self.published,
       updated: self.updated,
     };
@@ -154,6 +155,7 @@ impl Object for ApubSite {
       public_key: Some(apub.public_key.public_key_pem.clone()),
       private_key: None,
       instance_id: instance.id,
+      content_warning: apub.content_warning,
     };
     let languages =
       LanguageTag::to_language_id_multiple(apub.language, &mut context.pool()).await?;

crates/apub/src/protocol/objects/instance.rs

@@ -39,6 +39,8 @@ pub struct Instance {
   pub(crate) image: Option<ImageObject>,
   #[serde(default)]
   pub(crate) language: Vec<LanguageTag>,
+  /// nonstandard field
+  pub(crate) content_warning: Option<String>,
   pub(crate) published: DateTime<Utc>,
   pub(crate) updated: Option<DateTime<Utc>>,
 }

crates/db_perf/Cargo.toml

@@ -21,3 +21,4 @@ lemmy_db_schema = { workspace = true }
 lemmy_db_views = { workspace = true, features = ["full"] }
 lemmy_utils = { workspace = true }
 tokio = { workspace = true }
+url = { workspace = true }

crates/db_perf/src/main.rs

@@ -16,6 +16,7 @@ use lemmy_db_schema::{
     community::{Community, CommunityInsertForm},
     instance::Instance,
     person::{Person, PersonInsertForm},
+    site::Site,
   },
   traits::Crud,
   utils::{build_db_pool, get_conn, now},
@@ -24,6 +25,7 @@ use lemmy_db_schema::{
 use lemmy_db_views::{post_view::PostQuery, structs::PaginationCursor};
 use lemmy_utils::error::{LemmyErrorExt2, LemmyResult};
 use std::num::NonZeroU32;
+use url::Url;
 
 #[derive(Parser, Debug)]
 struct CmdArgs {
@@ -157,7 +159,7 @@ async fn try_main() -> LemmyResult<()> {
       page_after,
       ..Default::default()
     }
-    .list(&mut conn.into())
+    .list(&site()?, &mut conn.into())
     .await?;
 
     if let Some(post_view) = post_views.into_iter().last() {
@@ -181,3 +183,23 @@ async fn try_main() -> LemmyResult<()> {
 
   Ok(())
 }
+
+fn site() -> LemmyResult<Site> {
+  Ok(Site {
+    id: Default::default(),
+    name: String::new(),
+    sidebar: None,
+    published: Default::default(),
+    updated: None,
+    icon: None,
+    banner: None,
+    description: None,
+    actor_id: Url::parse("http://example.com")?.into(),
+    last_refreshed_at: Default::default(),
+    inbox_url: Url::parse("http://example.com")?.into(),
+    private_key: None,
+    public_key: String::new(),
+    instance_id: Default::default(),
+    content_warning: None,
+  })
+}

crates/db_schema/src/impls/community.rs

@@ -22,9 +22,10 @@ use crate::{
 use diesel::{
   deserialize,
   dsl,
-  dsl::insert_into,
+  dsl::{exists, insert_into},
   pg::Pg,
   result::Error,
+  select,
   sql_types,
   ExpressionMethods,
   NullableExpressionMethods,
@@ -235,7 +236,6 @@ impl CommunityFollower {
     remote_community_id: CommunityId,
   ) -> Result<bool, Error> {
     use crate::schema::community_follower::dsl::{community_follower, community_id};
-    use diesel::dsl::{exists, select};
     let conn = &mut get_conn(pool).await?;
     select(exists(
       community_follower.filter(community_id.eq(remote_community_id)),

crates/db_schema/src/lib.rs

@@ -139,7 +139,9 @@ pub enum RegistrationMode {
   Open,
 }
 
-#[derive(EnumString, Display, Debug, Serialize, Deserialize, Clone, Copy, PartialEq, Eq, Hash)]
+#[derive(
+  EnumString, Display, Debug, Serialize, Deserialize, Default, Clone, Copy, PartialEq, Eq, Hash,
+)]
 #[cfg_attr(feature = "full", derive(DbEnum, TS))]
 #[cfg_attr(
   feature = "full",
@@ -150,6 +152,7 @@ pub enum RegistrationMode {
 /// A post-view mode that changes how multiple post listings look.
 pub enum PostListingMode {
   /// A compact, list-type view.
+  #[default]
   List,
   /// A larger card-type view.
   Card,

crates/db_schema/src/schema.rs

@@ -353,6 +353,7 @@ diesel::table! {
     use diesel::sql_types::*;
     use super::sql_types::ListingTypeEnum;
     use super::sql_types::RegistrationModeEnum;
+    use super::sql_types::PostListingModeEnum;
 
     local_site (id) {
         id -> Int4,
@@ -380,6 +381,7 @@ diesel::table! {
         registration_mode -> RegistrationModeEnum,
         reports_email_admins -> Bool,
         federation_signed_fetch -> Bool,
+        default_post_listing_mode -> PostListingModeEnum,
     }
 }
 
@@ -869,6 +871,7 @@ diesel::table! {
         private_key -> Nullable<Text>,
         public_key -> Text,
         instance_id -> Int4,
+        content_warning -> Nullable<Text>,
     }
 }
 

crates/db_schema/src/source/local_site.rs

@@ -3,6 +3,7 @@ use crate::schema::local_site;
 use crate::{
   newtypes::{LocalSiteId, SiteId},
   ListingType,
+  PostListingMode,
   RegistrationMode,
 };
 use chrono::{DateTime, Utc};
@@ -64,6 +65,8 @@ pub struct LocalSite {
   /// Whether to sign outgoing Activitypub fetches with private key of local instance. Some
   /// Fediverse instances and platforms require this.
   pub federation_signed_fetch: bool,
+  /// Default value for [LocalUser.post_listing_mode]
+  pub default_post_listing_mode: PostListingMode,
 }
 
 #[derive(Clone, TypedBuilder)]
@@ -93,6 +96,7 @@ pub struct LocalSiteInsertForm {
   pub registration_mode: Option<RegistrationMode>,
   pub reports_email_admins: Option<bool>,
   pub federation_signed_fetch: Option<bool>,
+  pub default_post_listing_mode: Option<PostListingMode>,
 }
 
 #[derive(Clone, Default)]
@@ -120,4 +124,5 @@ pub struct LocalSiteUpdateForm {
   pub reports_email_admins: Option<bool>,
   pub updated: Option<Option<DateTime<Utc>>>,
   pub federation_signed_fetch: Option<bool>,
+  pub default_post_listing_mode: Option<PostListingMode>,
 }

crates/db_schema/src/source/site.rs

@@ -37,6 +37,9 @@ pub struct Site {
   pub private_key: Option<String>,
   pub public_key: String,
   pub instance_id: InstanceId,
+  /// If present, nsfw content is visible by default. Should be displayed by frontends/clients
+  /// when the site is first opened by a user.
+  pub content_warning: Option<String>,
 }
 
 #[derive(Clone, TypedBuilder)]
@@ -58,6 +61,7 @@ pub struct SiteInsertForm {
   pub public_key: Option<String>,
   #[builder(!default)]
   pub instance_id: InstanceId,
+  pub content_warning: Option<String>,
 }
 
 #[derive(Clone, Default)]
@@ -76,4 +80,5 @@ pub struct SiteUpdateForm {
   pub inbox_url: Option<DbUrl>,
   pub private_key: Option<Option<String>>,
   pub public_key: Option<String>,
+  pub content_warning: Option<Option<String>>,
 }

crates/db_views/Cargo.toml

@@ -45,3 +45,4 @@ serial_test = { workspace = true }
 tokio = { workspace = true }
 chrono = { workspace = true }
 pretty_assertions = { workspace = true }
+url = { workspace = true }

crates/db_views/src/post_view.rs

@@ -39,6 +39,7 @@ use lemmy_db_schema::{
     post_read,
     post_saved,
   },
+  source::site::Site,
   utils::{
     functions::coalesce,
     fuzzy_search,
@@ -61,7 +62,7 @@ use tracing::debug;
 
 fn queries<'a>() -> Queries<
   impl ReadFn<'a, PostView, (PostId, Option<PersonId>, bool)>,
-  impl ListFn<'a, PostView, PostQuery<'a>>,
+  impl ListFn<'a, PostView, (PostQuery<'a>, &'a Site)>,
 > {
   let is_creator_banned_from_community = exists(
     community_person_ban::table.filter(
@@ -270,7 +271,7 @@ fn queries<'a>() -> Queries<
         .await
     };
 
-  let list = move |mut conn: DbConn<'a>, options: PostQuery<'a>| async move {
+  let list = move |mut conn: DbConn<'a>, (options, site): (PostQuery<'a>, &'a Site)| async move {
     let my_person_id = options.local_user.map(|l| l.person.id);
     let my_local_user_id = options.local_user.map(|l| l.local_user.id);
 
@@ -368,10 +369,12 @@ fn queries<'a>() -> Queries<
       );
     }
 
+    // If there is a content warning, show nsfw content by default.
+    let has_content_warning = site.content_warning.is_some();
     if !options
       .local_user
       .map(|l| l.local_user.show_nsfw)
-      .unwrap_or(false)
+      .unwrap_or(has_content_warning)
     {
       query = query
         .filter(post::nsfw.eq(false))
@@ -571,7 +574,7 @@ impl PaginationCursor {
 #[derive(Clone)]
 pub struct PaginationCursorData(PostAggregates);
 
-#[derive(Default, Clone)]
+#[derive(Clone, Default)]
 pub struct PostQuery<'a> {
   pub listing_type: Option<ListingType>,
   pub sort: Option<SortType>,
@@ -595,6 +598,7 @@ pub struct PostQuery<'a> {
 impl<'a> PostQuery<'a> {
   async fn prefetch_upper_bound_for_page_before(
     &self,
+    site: &Site,
     pool: &mut DbPool<'_>,
   ) -> Result<Option<PostQuery<'a>>, Error> {
     // first get one page for the most popular community to get an upper bound for the the page end for the real query
@@ -645,11 +649,14 @@ impl<'a> PostQuery<'a> {
     let mut v = queries()
       .list(
         pool,
-        PostQuery {
+        (
-          community_id: Some(largest_subscribed),
+          PostQuery {
-          community_id_just_for_prefetch: true,
+            community_id: Some(largest_subscribed),
-          ..self.clone()
+            community_id_just_for_prefetch: true,
-        },
+            ..self.clone()
+          },
+          site,
+        ),
       )
       .await?;
     // take last element of array. if this query returned less than LIMIT elements,
@@ -671,19 +678,22 @@ impl<'a> PostQuery<'a> {
     }
   }
 
-  pub async fn list(self, pool: &mut DbPool<'_>) -> Result<Vec<PostView>, Error> {
+  pub async fn list(self, site: &Site, pool: &mut DbPool<'_>) -> Result<Vec<PostView>, Error> {
     if self.listing_type == Some(ListingType::Subscribed)
       && self.community_id.is_none()
       && self.local_user.is_some()
       && self.page_before_or_equal.is_none()
     {
-      if let Some(query) = self.prefetch_upper_bound_for_page_before(pool).await? {
+      if let Some(query) = self
-        queries().list(pool, query).await
+        .prefetch_upper_bound_for_page_before(site, pool)
+        .await?
+      {
+        queries().list(pool, (query, site)).await
       } else {
         Ok(vec![])
       }
     } else {
-      queries().list(pool, self).await
+      queries().list(pool, (self, site)).await
     }
   }
 }
@@ -717,6 +727,7 @@ mod tests {
       person::{Person, PersonInsertForm},
       person_block::{PersonBlock, PersonBlockForm},
       post::{Post, PostInsertForm, PostLike, PostLikeForm, PostRead, PostUpdateForm},
+      site::Site,
     },
     traits::{Blockable, Crud, Joinable, Likeable},
     utils::{build_db_pool, build_db_pool_for_tests, DbPool, RANK_DEFAULT},
@@ -728,6 +739,7 @@ mod tests {
   use pretty_assertions::assert_eq;
   use serial_test::serial;
   use std::{collections::HashSet, time::Duration};
+  use url::Url;
 
   const POST_BY_BLOCKED_PERSON: &str = "post by blocked person";
   const POST_BY_BOT: &str = "post by bot";
@@ -745,6 +757,7 @@ mod tests {
     inserted_community: Community,
     inserted_post: Post,
     inserted_bot_post: Post,
+    site: Site,
   }
 
   impl Data {
@@ -842,6 +855,24 @@ mod tests {
       counts: Default::default(),
     };
 
+    let site = Site {
+      id: Default::default(),
+      name: String::new(),
+      sidebar: None,
+      published: Default::default(),
+      updated: None,
+      icon: None,
+      banner: None,
+      description: None,
+      actor_id: Url::parse("http://example.com")?.into(),
+      last_refreshed_at: Default::default(),
+      inbox_url: Url::parse("http://example.com")?.into(),
+      private_key: None,
+      public_key: String::new(),
+      instance_id: Default::default(),
+      content_warning: None,
+    };
+
     Ok(Data {
       inserted_instance,
       local_user_view,
@@ -850,6 +881,7 @@ mod tests {
       inserted_community,
       inserted_post,
       inserted_bot_post,
+      site,
     })
   }
 
@@ -872,7 +904,7 @@ mod tests {
       community_id: Some(data.inserted_community.id),
       ..data.default_post_query()
     }
-    .list(pool)
+    .list(&data.site, pool)
     .await?;
 
     let post_listing_single_with_person = PostView::read(
@@ -907,7 +939,7 @@ mod tests {
       community_id: Some(data.inserted_community.id),
       ..data.default_post_query()
     }
-    .list(pool)
+    .list(&data.site, pool)
     .await?;
     // should include bot post which has "undetermined" language
     assert_eq!(vec![POST_BY_BOT, POST], names(&post_listings_with_bots));
@@ -927,7 +959,7 @@ mod tests {
       local_user: None,
       ..data.default_post_query()
     }
-    .list(pool)
+    .list(&data.site, pool)
     .await?;
 
     let read_post_listing_single_no_person =
@@ -970,7 +1002,7 @@ mod tests {
       community_id: Some(data.inserted_community.id),
       ..data.default_post_query()
     }
-    .list(pool)
+    .list(&data.site, pool)
     .await?;
     // Should be 0 posts after the community block
     assert_eq!(read_post_listings_with_person_after_block, vec![]);
@@ -1028,7 +1060,7 @@ mod tests {
       community_id: Some(data.inserted_community.id),
       ..data.default_post_query()
     }
-    .list(pool)
+    .list(&data.site, pool)
     .await?;
     assert_eq!(vec![expected_post_with_upvote], read_post_listing);
 
@@ -1037,7 +1069,7 @@ mod tests {
       liked_only: true,
       ..data.default_post_query()
     }
-    .list(pool)
+    .list(&data.site, pool)
     .await?;
     assert_eq!(read_post_listing, read_liked_post_listing);
 
@@ -1046,7 +1078,7 @@ mod tests {
       disliked_only: true,
       ..data.default_post_query()
     }
-    .list(pool)
+    .list(&data.site, pool)
     .await?;
     assert_eq!(read_disliked_post_listing, vec![]);
 
@@ -1076,7 +1108,7 @@ mod tests {
       community_id: Some(data.inserted_community.id),
       ..data.default_post_query()
     }
-    .list(pool)
+    .list(&data.site, pool)
     .await?
     .into_iter()
     .map(|p| (p.creator.name, p.creator_is_moderator, p.creator_is_admin))
@@ -1118,14 +1150,14 @@ mod tests {
 
     Post::create(pool, &post_spanish).await?;
 
-    let post_listings_all = data.default_post_query().list(pool).await?;
+    let post_listings_all = data.default_post_query().list(&data.site, pool).await?;
 
     // no language filters specified, all posts should be returned
     assert_eq!(vec![EL_POSTO, POST_BY_BOT, POST], names(&post_listings_all));
 
     LocalUserLanguage::update(pool, vec![french_id], data.local_user_view.local_user.id).await?;
 
-    let post_listing_french = data.default_post_query().list(pool).await?;
+    let post_listing_french = data.default_post_query().list(&data.site, pool).await?;
 
     // only one post in french and one undetermined should be returned
     assert_eq!(vec![POST_BY_BOT, POST], names(&post_listing_french));
@@ -1142,7 +1174,7 @@ mod tests {
     .await?;
     let post_listings_french_und = data
       .default_post_query()
-      .list(pool)
+      .list(&data.site, pool)
       .await?
       .into_iter()
       .map(|p| (p.post.name, p.post.language_id))
@@ -1177,7 +1209,7 @@ mod tests {
     .await?;
 
     // Make sure you don't see the removed post in the results
-    let post_listings_no_admin = data.default_post_query().list(pool).await?;
+    let post_listings_no_admin = data.default_post_query().list(&data.site, pool).await?;
     assert_eq!(vec![POST], names(&post_listings_no_admin));
 
     // Removed bot post is shown to admins on its profile page
@@ -1186,7 +1218,7 @@ mod tests {
       creator_id: Some(data.inserted_bot.id),
       ..data.default_post_query()
     }
-    .list(pool)
+    .list(&data.site, pool)
     .await?;
     assert_eq!(vec![POST_BY_BOT], names(&post_listings_is_admin));
 
@@ -1221,7 +1253,7 @@ mod tests {
         local_user,
         ..data.default_post_query()
       }
-      .list(pool)
+      .list(&data.site, pool)
       .await?
       .iter()
       .any(|p| p.post.id == data.inserted_post.id);
@@ -1261,7 +1293,7 @@ mod tests {
     let post_from_blocked_instance = Post::create(pool, &post_form).await?;
 
     // no instance block, should return all posts
-    let post_listings_all = data.default_post_query().list(pool).await?;
+    let post_listings_all = data.default_post_query().list(&data.site, pool).await?;
     assert_eq!(
       vec![POST_FROM_BLOCKED_INSTANCE, POST_BY_BOT, POST],
       names(&post_listings_all)
@@ -1275,7 +1307,7 @@ mod tests {
     InstanceBlock::block(pool, &block_form).await?;
 
     // now posts from communities on that instance should be hidden
-    let post_listings_blocked = data.default_post_query().list(pool).await?;
+    let post_listings_blocked = data.default_post_query().list(&data.site, pool).await?;
     assert_eq!(vec![POST_BY_BOT, POST], names(&post_listings_blocked));
     assert!(post_listings_blocked
       .iter()
@@ -1283,7 +1315,7 @@ mod tests {
 
     // after unblocking it should return all posts again
     InstanceBlock::unblock(pool, &block_form).await?;
-    let post_listings_blocked = data.default_post_query().list(pool).await?;
+    let post_listings_blocked = data.default_post_query().list(&data.site, pool).await?;
     assert_eq!(
       vec![POST_FROM_BLOCKED_INSTANCE, POST_BY_BOT, POST],
       names(&post_listings_blocked)
@@ -1351,7 +1383,7 @@ mod tests {
         page_after,
         ..options.clone()
       }
-      .list(pool)
+      .list(&data.site, pool)
       .await?;
 
       listed_post_ids.extend(post_listings.iter().map(|p| p.post.id));
@@ -1372,7 +1404,7 @@ mod tests {
         page_back: true,
         ..options.clone()
       }
-      .list(pool)
+      .list(&data.site, pool)
       .await?;
 
       let listed_post_ids = post_listings.iter().map(|p| p.post.id).collect::<Vec<_>>();
@@ -1425,7 +1457,7 @@ mod tests {
     .await?;
 
     // Make sure you don't see the read post in the results
-    let post_listings_hide_read = data.default_post_query().list(pool).await?;
+    let post_listings_hide_read = data.default_post_query().list(&data.site, pool).await?;
     assert_eq!(vec![POST], names(&post_listings_hide_read));
 
     cleanup(data, pool).await
@@ -1577,7 +1609,7 @@ mod tests {
     let unauthenticated_query = PostQuery {
       ..Default::default()
     }
-    .list(pool)
+    .list(&data.site, pool)
     .await?;
     assert_eq!(0, unauthenticated_query.len());
 
@@ -1585,7 +1617,7 @@ mod tests {
       local_user: Some(&data.local_user_view),
       ..Default::default()
     }
-    .list(pool)
+    .list(&data.site, pool)
     .await?;
     assert_eq!(2, authenticated_query.len());
 

crates/db_views_actor/Cargo.toml

@@ -39,6 +39,7 @@ strum_macros = { workspace = true }
 serial_test = { workspace = true }
 tokio = { workspace = true }
 pretty_assertions = { workspace = true }
+url.workspace = true
 
 [package.metadata.cargo-machete]
 ignored = ["strum"]

crates/db_views_actor/src/community_view.rs

@@ -20,7 +20,7 @@ use lemmy_db_schema::{
     instance_block,
     local_user,
   },
-  source::{community::CommunityFollower, local_user::LocalUser},
+  source::{community::CommunityFollower, local_user::LocalUser, site::Site},
   utils::{fuzzy_search, limit_and_offset, DbConn, DbPool, ListFn, Queries, ReadFn},
   CommunityVisibility,
   ListingType,
@@ -29,7 +29,7 @@ use lemmy_db_schema::{
 
 fn queries<'a>() -> Queries<
   impl ReadFn<'a, CommunityView, (CommunityId, Option<PersonId>, bool)>,
-  impl ListFn<'a, CommunityView, CommunityQuery<'a>>,
+  impl ListFn<'a, CommunityView, (CommunityQuery<'a>, &'a Site)>,
 > {
   let all_joins = |query: community::BoxedQuery<'a, Pg>, my_person_id: Option<PersonId>| {
     // The left join below will return None in this case
@@ -96,7 +96,7 @@ fn queries<'a>() -> Queries<
     query.first::<CommunityView>(&mut conn).await
   };
 
-  let list = move |mut conn: DbConn<'a>, options: CommunityQuery<'a>| async move {
+  let list = move |mut conn: DbConn<'a>, (options, site): (CommunityQuery<'a>, &'a Site)| async move {
     use SortType::*;
 
     let my_person_id = options.local_user.map(|l| l.person_id);
@@ -158,8 +158,10 @@ fn queries<'a>() -> Queries<
       query = query.filter(community_block::person_id.is_null());
       query = query.filter(community::nsfw.eq(false).or(local_user::show_nsfw.eq(true)));
     } else {
-      // No person in request, only show nsfw communities if show_nsfw is passed into request
+      // No person in request, only show nsfw communities if show_nsfw is passed into request or if
-      if !options.show_nsfw {
+      // site has content warning.
+      let has_content_warning = site.content_warning.is_some();
+      if !options.show_nsfw && !has_content_warning {
         query = query.filter(community::nsfw.eq(false));
       }
       // Hide local only communities from unauthenticated users
@@ -233,8 +235,8 @@ pub struct CommunityQuery<'a> {
 }
 
 impl<'a> CommunityQuery<'a> {
-  pub async fn list(self, pool: &mut DbPool<'_>) -> Result<Vec<CommunityView>, Error> {
+  pub async fn list(self, site: &Site, pool: &mut DbPool<'_>) -> Result<Vec<CommunityView>, Error> {
-    queries().list(pool, self).await
+    queries().list(pool, (self, site)).await
   }
 }
 
@@ -250,17 +252,20 @@ mod tests {
       instance::Instance,
       local_user::{LocalUser, LocalUserInsertForm},
       person::{Person, PersonInsertForm},
+      site::Site,
     },
     traits::Crud,
     utils::{build_db_pool_for_tests, DbPool},
     CommunityVisibility,
   };
   use serial_test::serial;
+  use url::Url;
 
   struct Data {
     inserted_instance: Instance,
     local_user: LocalUser,
     inserted_community: Community,
+    site: Site,
   }
 
   async fn init_data(pool: &mut DbPool<'_>) -> Data {
@@ -293,10 +298,30 @@ mod tests {
 
     let inserted_community = Community::create(pool, &new_community).await.unwrap();
 
+    let url = Url::parse("http://example.com").unwrap();
+    let site = Site {
+      id: Default::default(),
+      name: String::new(),
+      sidebar: None,
+      published: Default::default(),
+      updated: None,
+      icon: None,
+      banner: None,
+      description: None,
+      actor_id: url.clone().into(),
+      last_refreshed_at: Default::default(),
+      inbox_url: url.into(),
+      private_key: None,
+      public_key: String::new(),
+      instance_id: Default::default(),
+      content_warning: None,
+    };
+
     Data {
       inserted_instance,
       local_user,
       inserted_community,
+      site,
     }
   }
 
@@ -333,7 +358,7 @@ mod tests {
     let unauthenticated_query = CommunityQuery {
       ..Default::default()
     }
-    .list(pool)
+    .list(&data.site, pool)
     .await
     .unwrap();
     assert_eq!(0, unauthenticated_query.len());
@@ -342,7 +367,7 @@ mod tests {
       local_user: Some(&data.local_user),
       ..Default::default()
     }
-    .list(pool)
+    .list(&data.site, pool)
     .await
     .unwrap();
     assert_eq!(1, authenticated_query.len());

crates/routes/src/feeds.rs

@@ -163,7 +163,7 @@ async fn get_feed_data(
     page: (Some(page)),
     ..Default::default()
   }
-  .list(&mut context.pool())
+  .list(&site_view.site, &mut context.pool())
   .await?;
 
   let items = create_post_items(posts, &context.settings().get_protocol_and_hostname())?;
@@ -270,7 +270,7 @@ async fn get_feed_user(
     page: (Some(*page)),
     ..Default::default()
   }
-  .list(&mut context.pool())
+  .list(&site_view.site, &mut context.pool())
   .await?;
 
   let items = create_post_items(posts, &context.settings().get_protocol_and_hostname())?;
@@ -308,7 +308,7 @@ async fn get_feed_community(
     page: (Some(*page)),
     ..Default::default()
   }
-  .list(&mut context.pool())
+  .list(&site_view.site, &mut context.pool())
   .await?;
 
   let items = create_post_items(posts, &context.settings().get_protocol_and_hostname())?;
@@ -349,7 +349,7 @@ async fn get_feed_front(
     page: (Some(*page)),
     ..Default::default()
   }
-  .list(&mut context.pool())
+  .list(&site_view.site, &mut context.pool())
   .await?;
 
   let protocol_and_hostname = context.settings().get_protocol_and_hostname();

migrations/2024-01-22-105746_lemmynsfw-changes/down.sql

@@ -0,0 +1,6 @@
+ALTER TABLE site
+    DROP COLUMN content_warning;
+
+ALTER TABLE local_site
+    DROP COLUMN default_post_listing_mode;
+

migrations/2024-01-22-105746_lemmynsfw-changes/up.sql

@@ -0,0 +1,6 @@
+ALTER TABLE site
+    ADD COLUMN content_warning text;
+
+ALTER TABLE local_site
+    ADD COLUMN default_post_listing_mode post_listing_mode_enum NOT NULL DEFAULT 'List';
+