-use crate::PerformCrud;
-use actix_web::web::Data;
+use activitypub_federation::config::Data;
+use actix_web::web::Json;
use lemmy_api_common::{
- blocking,
- check_community_ban,
- get_local_user_view_from_jwt,
- mark_post_as_read,
- post::*,
+ build_response::build_post_response,
+ context::LemmyContext,
+ post::{CreatePost, PostResponse},
+ request::fetch_site_data,
+ send_activity::{ActivityChannel, SendActivityData},
+ utils::{
+ check_community_ban,
+ check_community_deleted_or_removed,
+ generate_local_apub_endpoint,
+ honeypot_check,
+ local_site_to_slur_regex,
+ local_user_view_from_jwt,
+ mark_post_as_read,
+ sanitize_html,
+ sanitize_html_opt,
+ EndpointType,
+ },
};
-use lemmy_apub::{generate_apub_endpoint, ApubLikeableType, EndpointType};
-use lemmy_db_queries::{source::post::Post_, Crud, Likeable};
-use lemmy_db_schema::source::post::*;
-use lemmy_db_views::post_view::PostView;
+use lemmy_db_schema::{
+ impls::actor_language::default_post_language,
+ source::{
+ actor_language::CommunityLanguage,
+ community::Community,
+ local_site::LocalSite,
+ post::{Post, PostInsertForm, PostLike, PostLikeForm, PostUpdateForm},
+ },
+ traits::{Crud, Likeable},
+};
+use lemmy_db_views_actor::structs::CommunityView;
use lemmy_utils::{
- request::fetch_iframely_and_pictrs_data,
- utils::{check_slurs, check_slurs_opt, clean_url_params, is_valid_post_title},
- ApiError,
- ConnectionId,
- LemmyError,
+ error::{LemmyError, LemmyErrorExt, LemmyErrorType},
+ spawn_try_task,
+ utils::{
+ slurs::{check_slurs, check_slurs_opt},
+ validation::{check_url_scheme, clean_url_params, is_valid_body_field, is_valid_post_title},
+ },
+ SYNCHRONOUS_FEDERATION,
};
-use lemmy_websocket::{messages::SendPost, LemmyContext, UserOperationCrud};
-
-#[async_trait::async_trait(?Send)]
-impl PerformCrud for CreatePost {
- type Response = PostResponse;
-
- async fn perform(
- &self,
- context: &Data<LemmyContext>,
- websocket_id: Option<ConnectionId>,
- ) -> Result<PostResponse, LemmyError> {
- let data: &CreatePost = self;
- let local_user_view = get_local_user_view_from_jwt(&data.auth, context.pool()).await?;
-
- check_slurs(&data.name)?;
- check_slurs_opt(&data.body)?;
-
- if !is_valid_post_title(&data.name) {
- return Err(ApiError::err("invalid_post_title").into());
+use tracing::Instrument;
+use url::Url;
+use webmention::{Webmention, WebmentionError};
+
+#[tracing::instrument(skip(context))]
+pub async fn create_post(
+ data: Json<CreatePost>,
+ context: Data<LemmyContext>,
+) -> Result<Json<PostResponse>, LemmyError> {
+ let local_user_view = local_user_view_from_jwt(&data.auth, &context).await?;
+ let local_site = LocalSite::read(&mut context.pool()).await?;
+
+ let slur_regex = local_site_to_slur_regex(&local_site);
+ check_slurs(&data.name, &slur_regex)?;
+ check_slurs_opt(&data.body, &slur_regex)?;
+ honeypot_check(&data.honeypot)?;
+
+ let data_url = data.url.as_ref();
+ 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, true)?;
+ check_url_scheme(&data.url)?;
+
+ check_community_ban(
+ local_user_view.person.id,
+ data.community_id,
+ &mut context.pool(),
+ )
+ .await?;
+ check_community_deleted_or_removed(data.community_id, &mut context.pool()).await?;
+
+ let community_id = data.community_id;
+ let community = Community::read(&mut context.pool(), community_id).await?;
+ if community.posting_restricted_to_mods {
+ let community_id = data.community_id;
+ let is_mod = CommunityView::is_mod_or_admin(
+ &mut context.pool(),
+ local_user_view.local_user.person_id,
+ community_id,
+ )
+ .await?;
+ if !is_mod {
+ return Err(LemmyErrorType::OnlyModsCanPostInCommunity)?;
}
+ }
- check_community_ban(local_user_view.person.id, data.community_id, context.pool()).await?;
-
- // Fetch Iframely and pictrs cached image
- let data_url = data.url.as_ref();
- let (iframely_title, iframely_description, iframely_html, pictrs_thumbnail) =
- fetch_iframely_and_pictrs_data(context.client(), data_url).await;
-
- let post_form = PostForm {
- name: data.name.trim().to_owned(),
- url: data_url.map(|u| clean_url_params(u.to_owned()).into()),
- body: data.body.to_owned(),
- community_id: data.community_id,
- creator_id: local_user_view.person.id,
- nsfw: data.nsfw,
- embed_title: iframely_title,
- embed_description: iframely_description,
- embed_html: iframely_html,
- thumbnail_url: pictrs_thumbnail.map(|u| u.into()),
- ..PostForm::default()
- };
-
- let inserted_post =
- match blocking(context.pool(), move |conn| Post::create(conn, &post_form)).await? {
- Ok(post) => post,
- Err(e) => {
- let err_type = if e.to_string() == "value too long for type character varying(200)" {
- "post_title_too_long"
- } else {
- "couldnt_create_post"
- };
-
- return Err(ApiError::err(err_type).into());
- }
- };
-
- let inserted_post_id = inserted_post.id;
- let updated_post = blocking(context.pool(), move |conn| -> Result<Post, LemmyError> {
- let apub_id = generate_apub_endpoint(EndpointType::Post, &inserted_post_id.to_string())?;
- Ok(Post::update_ap_id(conn, inserted_post_id, apub_id)?)
- })
- .await?
- .map_err(|_| ApiError::err("couldnt_create_post"))?;
-
- lemmy_apub::activities::post::create::CreatePost::send(
- &updated_post,
- &local_user_view.person,
- context,
- )
+ // Fetch post links and pictrs cached image
+ let (metadata_res, thumbnail_url) =
+ fetch_site_data(context.client(), context.settings(), data_url, true).await;
+ let (embed_title, embed_description, embed_video_url) = metadata_res
+ .map(|u| (u.title, u.description, u.embed_video_url))
+ .unwrap_or_default();
+
+ let name = sanitize_html(data.name.trim());
+ let body = sanitize_html_opt(&data.body);
+ let embed_title = sanitize_html_opt(&embed_title);
+ let embed_description = sanitize_html_opt(&embed_description);
+
+ // Only need to check if language is allowed in case user set it explicitly. When using default
+ // language, it already only returns allowed languages.
+ CommunityLanguage::is_allowed_community_language(
+ &mut context.pool(),
+ data.language_id,
+ community_id,
+ )
+ .await?;
+
+ // attempt to set default language if none was provided
+ let language_id = match data.language_id {
+ Some(lid) => Some(lid),
+ None => {
+ default_post_language(
+ &mut context.pool(),
+ community_id,
+ local_user_view.local_user.id,
+ )
+ .await?
+ }
+ };
+
+ let post_form = PostInsertForm::builder()
+ .name(name)
+ .url(url)
+ .body(body)
+ .community_id(data.community_id)
+ .creator_id(local_user_view.person.id)
+ .nsfw(data.nsfw)
+ .embed_title(embed_title)
+ .embed_description(embed_description)
+ .embed_video_url(embed_video_url)
+ .language_id(language_id)
+ .thumbnail_url(thumbnail_url)
+ .build();
+
+ let inserted_post = Post::create(&mut context.pool(), &post_form)
+ .await
+ .with_lemmy_type(LemmyErrorType::CouldntCreatePost)?;
+
+ let inserted_post_id = inserted_post.id;
+ let protocol_and_hostname = context.settings().get_protocol_and_hostname();
+ let apub_id = generate_local_apub_endpoint(
+ EndpointType::Post,
+ &inserted_post_id.to_string(),
+ &protocol_and_hostname,
+ )?;
+ let updated_post = Post::update(
+ &mut context.pool(),
+ inserted_post_id,
+ &PostUpdateForm::builder().ap_id(Some(apub_id)).build(),
+ )
+ .await
+ .with_lemmy_type(LemmyErrorType::CouldntCreatePost)?;
+
+ // They like their own post by default
+ let person_id = local_user_view.person.id;
+ let post_id = inserted_post.id;
+ let like_form = PostLikeForm {
+ post_id,
+ person_id,
+ score: 1,
+ };
+
+ PostLike::like(&mut context.pool(), &like_form)
+ .await
+ .with_lemmy_type(LemmyErrorType::CouldntLikePost)?;
+
+ ActivityChannel::submit_activity(SendActivityData::CreatePost(updated_post.clone()), &context)
.await?;
- // They like their own post by default
- let person_id = local_user_view.person.id;
- let post_id = inserted_post.id;
- let like_form = PostLikeForm {
- post_id,
- person_id,
- score: 1,
+ // Mark the post as read
+ mark_post_as_read(person_id, post_id, &mut context.pool()).await?;
+
+ if let Some(url) = updated_post.url.clone() {
+ let task = async move {
+ let mut webmention =
+ Webmention::new::<Url>(updated_post.ap_id.clone().into(), url.clone().into())?;
+ webmention.set_checked(true);
+ match webmention
+ .send()
+ .instrument(tracing::info_span!("Sending webmention"))
+ .await
+ {
+ Err(WebmentionError::NoEndpointDiscovered(_)) => Ok(()),
+ Ok(_) => Ok(()),
+ Err(e) => Err(e).with_lemmy_type(LemmyErrorType::CouldntSendWebmention),
+ }
};
-
- let like = move |conn: &'_ _| PostLike::like(conn, &like_form);
- if blocking(context.pool(), like).await?.is_err() {
- return Err(ApiError::err("couldnt_like_post").into());
+ if *SYNCHRONOUS_FEDERATION {
+ task.await?;
+ } else {
+ spawn_try_task(task);
}
+ };
- // Mark the post as read
- mark_post_as_read(person_id, post_id, context.pool()).await?;
-
- updated_post
- .send_like(&local_user_view.person, context)
- .await?;
-
- // Refetch the view
- let inserted_post_id = inserted_post.id;
- let post_view = blocking(context.pool(), move |conn| {
- PostView::read(conn, inserted_post_id, Some(local_user_view.person.id))
- })
- .await?
- .map_err(|_| ApiError::err("couldnt_find_post"))?;
-
- let res = PostResponse { post_view };
-
- context.chat_server().do_send(SendPost {
- op: UserOperationCrud::CreatePost,
- post: res.clone(),
- websocket_id,
- });
-
- Ok(res)
- }
+ Ok(Json(
+ build_post_response(&context, community_id, person_id, post_id).await?,
+ ))
}