Add separate Post check for is_valid_body_field (#3263)

* Add separate Post check for is_valid_body_field

* Modify is_valid_body_check for posts only

* Fix check var reinit in validation.rs

* Extra empty line to rerun woodpecker with changes

* Change Option to bool, add false to non-post calls

* Woodpecker trick.. again

* Probable rust_fmt fail fixed

* cargo_clippy changes

* Missing space between = and if

* Remove ; after body length checks

crates/api/src/community/ban.rs

@@ -42,7 +42,7 @@ impl Perform for BanFromCommunity {
 
     // Verify that only mods or admins can ban
     is_mod_or_admin(context.pool(), local_user_view.person.id, community_id).await?;
-    is_valid_body_field(&data.reason)?;
+    is_valid_body_field(&data.reason, false)?;
 
     let community_user_ban_form = CommunityPersonBanForm {
       community_id: data.community_id,

crates/api/src/local_user/ban_person.rs

@@ -30,7 +30,7 @@ impl Perform for BanPerson {
     // Make sure user is an admin
     is_admin(&local_user_view)?;
 
-    is_valid_body_field(&data.reason)?;
+    is_valid_body_field(&data.reason, false)?;
 
     let ban = data.ban;
     let banned_person_id = data.person_id;

crates/api_crud/src/comment/create.rs

@@ -49,7 +49,7 @@ impl PerformCrud for CreateComment {
       &data.content.clone(),
       &local_site_to_slur_regex(&local_site),
     );
-    is_valid_body_field(&Some(content_slurs_removed.clone()))?;
+    is_valid_body_field(&Some(content_slurs_removed.clone()), false)?;
 
     // Check for a community ban
     let post_id = data.post_id;

crates/api_crud/src/comment/update.rs

@@ -64,7 +64,7 @@ impl PerformCrud for EditComment {
       .as_ref()
       .map(|c| remove_slurs(c, &local_site_to_slur_regex(&local_site)));
 
-    is_valid_body_field(&content_slurs_removed)?;
+    is_valid_body_field(&content_slurs_removed, false)?;
 
     let comment_id = data.comment_id;
     let form = CommentUpdateForm::builder()

crates/api_crud/src/community/create.rs

@@ -67,7 +67,7 @@ impl PerformCrud for CreateCommunity {
     check_slurs_opt(&data.description, &slur_regex)?;
 
     is_valid_actor_name(&data.name, local_site.actor_name_max_length as usize)?;
-    is_valid_body_field(&data.description)?;
+    is_valid_body_field(&data.description, false)?;
 
     // Double check for duplicate community actor_ids
     let community_actor_id = generate_local_apub_endpoint(

crates/api_crud/src/community/update.rs

@@ -39,7 +39,7 @@ impl PerformCrud for EditCommunity {
     let slur_regex = local_site_to_slur_regex(&local_site);
     check_slurs_opt(&data.title, &slur_regex)?;
     check_slurs_opt(&data.description, &slur_regex)?;
-    is_valid_body_field(&data.description)?;
+    is_valid_body_field(&data.description, false)?;
 
     // Verify its a mod (only mods can edit it)
     let community_id = data.community_id;

crates/api_crud/src/post/create.rs

@@ -57,7 +57,7 @@ impl PerformCrud for CreatePost {
     let url = data_url.map(clean_url_params).map(Into::into); // TODO no good way to handle a "clear"
 
     is_valid_post_title(&data.name)?;
-    is_valid_body_field(&data.body)?;
+    is_valid_body_field(&data.body, true)?;
 
     check_community_ban(local_user_view.person.id, data.community_id, context.pool()).await?;
     check_community_deleted_or_removed(data.community_id, context.pool()).await?;

crates/api_crud/src/post/update.rs

@@ -49,7 +49,7 @@ impl PerformCrud for EditPost {
       is_valid_post_title(name)?;
     }
 
-    is_valid_body_field(&data.body)?;
+    is_valid_body_field(&data.body, true)?;
 
     let post_id = data.post_id;
     let orig_post = Post::read(context.pool(), post_id).await?;

crates/api_crud/src/private_message/create.rs

@@ -43,7 +43,7 @@ impl PerformCrud for CreatePrivateMessage {
       &data.content.clone(),
       &local_site_to_slur_regex(&local_site),
     );
-    is_valid_body_field(&Some(content_slurs_removed.clone()))?;
+    is_valid_body_field(&Some(content_slurs_removed.clone()), false)?;
 
     check_person_block(local_user_view.person.id, data.recipient_id, context.pool()).await?;
 

crates/api_crud/src/private_message/update.rs

@@ -41,7 +41,7 @@ impl PerformCrud for EditPrivateMessage {
 
     // Doing the update
     let content_slurs_removed = remove_slurs(&data.content, &local_site_to_slur_regex(&local_site));
-    is_valid_body_field(&Some(content_slurs_removed.clone()))?;
+    is_valid_body_field(&Some(content_slurs_removed.clone()), false)?;
 
     let private_message_id = data.private_message_id;
     PrivateMessage::update(

crates/api_crud/src/site/create.rs

@@ -73,7 +73,7 @@ impl PerformCrud for CreateSite {
       site_description_length_check(desc)?;
     }
 
-    is_valid_body_field(&data.sidebar)?;
+    is_valid_body_field(&data.sidebar, false)?;
 
     let application_question = diesel_option_overwrite(&data.application_question);
     check_application_question(

crates/api_crud/src/site/update.rs

@@ -67,7 +67,7 @@ impl PerformCrud for EditSite {
       site_description_length_check(desc)?;
     }
 
-    is_valid_body_field(&data.sidebar)?;
+    is_valid_body_field(&data.sidebar, false)?;
 
     let application_question = diesel_option_overwrite(&data.application_question);
     check_application_question(

crates/utils/src/utils/validation.rs

@@ -18,6 +18,7 @@ static CLEAN_URL_PARAMS_REGEX: Lazy<Regex> = Lazy::new(|| {
     .expect("compile regex")
 });
 const BODY_MAX_LENGTH: usize = 10000;
+const POST_BODY_MAX_LENGTH: usize = 50000;
 const BIO_MAX_LENGTH: usize = 300;
 
 fn has_newline(name: &str) -> bool {
@@ -68,9 +69,14 @@ pub fn is_valid_post_title(title: &str) -> LemmyResult<()> {
 }
 
 /// This could be post bodies, comments, or any description field
-pub fn is_valid_body_field(body: &Option<String>) -> LemmyResult<()> {
+pub fn is_valid_body_field(body: &Option<String>, post: bool) -> LemmyResult<()> {
   if let Some(body) = body {
-    let check = body.chars().count() <= BODY_MAX_LENGTH;
+    let check = if post {
+      body.chars().count() <= POST_BODY_MAX_LENGTH
+    } else {
+      body.chars().count() <= BODY_MAX_LENGTH
+    };
+
     if !check {
       Err(LemmyError::from_message("invalid_body_field"))
     } else {