use crate::{ api::{APIError, Oper, Perform}, apub::{ApubLikeableType, ApubObjectType}, db::{ comment::*, comment_view::*, community_view::*, moderator::*, post::*, site_view::*, user::*, user_mention::*, user_view::*, Crud, Likeable, ListingType, Saveable, SortType, }, naive_now, remove_slurs, scrape_text_for_mentions, send_email, settings::Settings, websocket::{ server::{JoinCommunityRoom, SendComment}, UserOperation, WebsocketInfo, }, MentionData, }; use diesel::{ r2d2::{ConnectionManager, Pool}, PgConnection, }; use failure::Error; use log::error; use serde::{Deserialize, Serialize}; use std::str::FromStr; #[derive(Serialize, Deserialize)] pub struct CreateComment { content: String, parent_id: Option, edit_id: Option, // TODO this isn't used pub post_id: i32, auth: String, } #[derive(Serialize, Deserialize)] pub struct EditComment { content: String, parent_id: Option, // TODO why are the parent_id, creator_id, post_id, etc fields required? They aren't going to change edit_id: i32, creator_id: i32, pub post_id: i32, removed: Option, deleted: Option, reason: Option, read: Option, auth: String, } #[derive(Serialize, Deserialize)] pub struct SaveComment { comment_id: i32, save: bool, auth: String, } #[derive(Serialize, Deserialize, Clone)] pub struct CommentResponse { pub comment: CommentView, pub recipient_ids: Vec, } #[derive(Serialize, Deserialize)] pub struct CreateCommentLike { comment_id: i32, pub post_id: i32, score: i16, auth: String, } #[derive(Serialize, Deserialize)] pub struct GetComments { type_: String, sort: String, page: Option, limit: Option, pub community_id: Option, auth: Option, } #[derive(Serialize, Deserialize)] pub struct GetCommentsResponse { comments: Vec, } impl Perform for Oper { type Response = CommentResponse; fn perform( &self, pool: Pool>, websocket_info: Option, ) -> Result { let data: &CreateComment = &self.data; let claims = match Claims::decode(&data.auth) { Ok(claims) => claims.claims, Err(_e) => return Err(APIError::err("not_logged_in").into()), }; let user_id = claims.id; let conn = pool.get()?; // Check for a community ban let post = Post::read(&conn, data.post_id)?; if CommunityUserBanView::get(&conn, user_id, post.community_id).is_ok() { return Err(APIError::err("community_ban").into()); } // Check for a site ban let user = User_::read(&conn, user_id)?; if user.banned { return Err(APIError::err("site_ban").into()); } let content_slurs_removed = remove_slurs(&data.content.to_owned()); let comment_form = CommentForm { content: content_slurs_removed, parent_id: data.parent_id.to_owned(), post_id: data.post_id, creator_id: user_id, removed: None, deleted: None, read: None, published: None, updated: None, ap_id: "changeme".into(), local: true, }; let inserted_comment = match Comment::create(&conn, &comment_form) { Ok(comment) => comment, Err(_e) => return Err(APIError::err("couldnt_create_comment").into()), }; let updated_comment = match Comment::update_ap_id(&conn, inserted_comment.id) { Ok(comment) => comment, Err(_e) => return Err(APIError::err("couldnt_create_comment").into()), }; updated_comment.send_create(&user, &conn)?; // Scan the comment for user mentions, add those rows let mentions = scrape_text_for_mentions(&comment_form.content); let recipient_ids = send_local_notifs(&conn, &mentions, &updated_comment, &user, &post); // You like your own comment by default let like_form = CommentLikeForm { comment_id: inserted_comment.id, post_id: data.post_id, user_id, score: 1, }; let _inserted_like = match CommentLike::like(&conn, &like_form) { Ok(like) => like, Err(_e) => return Err(APIError::err("couldnt_like_comment").into()), }; updated_comment.send_like(&user, &conn)?; let comment_view = CommentView::read(&conn, inserted_comment.id, Some(user_id))?; let mut res = CommentResponse { comment: comment_view, recipient_ids, }; if let Some(ws) = websocket_info { ws.chatserver.do_send(SendComment { op: UserOperation::CreateComment, comment: res.clone(), my_id: ws.id, }); // strip out the recipient_ids, so that // users don't get double notifs res.recipient_ids = Vec::new(); } Ok(res) } } impl Perform for Oper { type Response = CommentResponse; fn perform( &self, pool: Pool>, websocket_info: Option, ) -> Result { let data: &EditComment = &self.data; let claims = match Claims::decode(&data.auth) { Ok(claims) => claims.claims, Err(_e) => return Err(APIError::err("not_logged_in").into()), }; let user_id = claims.id; let conn = pool.get()?; let user = User_::read(&conn, user_id)?; let orig_comment = CommentView::read(&conn, data.edit_id, None)?; // You are allowed to mark the comment as read even if you're banned. if data.read.is_none() { // Verify its the creator or a mod, or an admin let mut editors: Vec = vec![data.creator_id]; editors.append( &mut CommunityModeratorView::for_community(&conn, orig_comment.community_id)? .into_iter() .map(|m| m.user_id) .collect(), ); editors.append(&mut UserView::admins(&conn)?.into_iter().map(|a| a.id).collect()); if !editors.contains(&user_id) { return Err(APIError::err("no_comment_edit_allowed").into()); } // Check for a community ban if CommunityUserBanView::get(&conn, user_id, orig_comment.community_id).is_ok() { return Err(APIError::err("community_ban").into()); } // Check for a site ban if user.banned { return Err(APIError::err("site_ban").into()); } } let content_slurs_removed = remove_slurs(&data.content.to_owned()); let read_comment = Comment::read(&conn, data.edit_id)?; let comment_form = CommentForm { content: content_slurs_removed, parent_id: data.parent_id, post_id: data.post_id, creator_id: data.creator_id, removed: data.removed.to_owned(), deleted: data.deleted.to_owned(), read: data.read.to_owned(), published: None, updated: if data.read.is_some() { orig_comment.updated } else { Some(naive_now()) }, ap_id: read_comment.ap_id, local: read_comment.local, }; let updated_comment = match Comment::update(&conn, data.edit_id, &comment_form) { Ok(comment) => comment, Err(_e) => return Err(APIError::err("couldnt_update_comment").into()), }; if let Some(deleted) = data.deleted.to_owned() { if deleted { updated_comment.send_delete(&user, &conn)?; } else { updated_comment.send_undo_delete(&user, &conn)?; } } else if let Some(removed) = data.removed.to_owned() { if removed { updated_comment.send_remove(&user, &conn)?; } else { updated_comment.send_undo_remove(&user, &conn)?; } } else { updated_comment.send_update(&user, &conn)?; } let post = Post::read(&conn, data.post_id)?; let mentions = scrape_text_for_mentions(&comment_form.content); let recipient_ids = send_local_notifs(&conn, &mentions, &updated_comment, &user, &post); // Mod tables if let Some(removed) = data.removed.to_owned() { let form = ModRemoveCommentForm { mod_user_id: user_id, comment_id: data.edit_id, removed: Some(removed), reason: data.reason.to_owned(), }; ModRemoveComment::create(&conn, &form)?; } let comment_view = CommentView::read(&conn, data.edit_id, Some(user_id))?; let mut res = CommentResponse { comment: comment_view, recipient_ids, }; if let Some(ws) = websocket_info { ws.chatserver.do_send(SendComment { op: UserOperation::EditComment, comment: res.clone(), my_id: ws.id, }); // strip out the recipient_ids, so that // users don't get double notifs res.recipient_ids = Vec::new(); } Ok(res) } } impl Perform for Oper { type Response = CommentResponse; fn perform( &self, pool: Pool>, _websocket_info: Option, ) -> Result { let data: &SaveComment = &self.data; let claims = match Claims::decode(&data.auth) { Ok(claims) => claims.claims, Err(_e) => return Err(APIError::err("not_logged_in").into()), }; let user_id = claims.id; let comment_saved_form = CommentSavedForm { comment_id: data.comment_id, user_id, }; let conn = pool.get()?; if data.save { match CommentSaved::save(&conn, &comment_saved_form) { Ok(comment) => comment, Err(_e) => return Err(APIError::err("couldnt_save_comment").into()), }; } else { match CommentSaved::unsave(&conn, &comment_saved_form) { Ok(comment) => comment, Err(_e) => return Err(APIError::err("couldnt_save_comment").into()), }; } let comment_view = CommentView::read(&conn, data.comment_id, Some(user_id))?; Ok(CommentResponse { comment: comment_view, recipient_ids: Vec::new(), }) } } impl Perform for Oper { type Response = CommentResponse; fn perform( &self, pool: Pool>, websocket_info: Option, ) -> Result { let data: &CreateCommentLike = &self.data; let claims = match Claims::decode(&data.auth) { Ok(claims) => claims.claims, Err(_e) => return Err(APIError::err("not_logged_in").into()), }; let user_id = claims.id; let mut recipient_ids = Vec::new(); let conn = pool.get()?; // Don't do a downvote if site has downvotes disabled if data.score == -1 { let site = SiteView::read(&conn)?; if !site.enable_downvotes { return Err(APIError::err("downvotes_disabled").into()); } } // Check for a community ban let post = Post::read(&conn, data.post_id)?; if CommunityUserBanView::get(&conn, user_id, post.community_id).is_ok() { return Err(APIError::err("community_ban").into()); } // Check for a site ban let user = User_::read(&conn, user_id)?; if user.banned { return Err(APIError::err("site_ban").into()); } let comment = Comment::read(&conn, data.comment_id)?; // Add to recipient ids match comment.parent_id { Some(parent_id) => { let parent_comment = Comment::read(&conn, parent_id)?; if parent_comment.creator_id != user_id { let parent_user = User_::read(&conn, parent_comment.creator_id)?; recipient_ids.push(parent_user.id); } } None => { recipient_ids.push(post.creator_id); } } let like_form = CommentLikeForm { comment_id: data.comment_id, post_id: data.post_id, user_id, score: data.score, }; // Remove any likes first CommentLike::remove(&conn, &like_form)?; // Only add the like if the score isnt 0 let do_add = like_form.score != 0 && (like_form.score == 1 || like_form.score == -1); if do_add { let _inserted_like = match CommentLike::like(&conn, &like_form) { Ok(like) => like, Err(_e) => return Err(APIError::err("couldnt_like_comment").into()), }; if like_form.score == 1 { comment.send_like(&user, &conn)?; } else if like_form.score == -1 { comment.send_dislike(&user, &conn)?; } } else { comment.send_undo_like(&user, &conn)?; } // Have to refetch the comment to get the current state let liked_comment = CommentView::read(&conn, data.comment_id, Some(user_id))?; let mut res = CommentResponse { comment: liked_comment, recipient_ids, }; if let Some(ws) = websocket_info { ws.chatserver.do_send(SendComment { op: UserOperation::CreateCommentLike, comment: res.clone(), my_id: ws.id, }); // strip out the recipient_ids, so that // users don't get double notifs res.recipient_ids = Vec::new(); } Ok(res) } } impl Perform for Oper { type Response = GetCommentsResponse; fn perform( &self, pool: Pool>, websocket_info: Option, ) -> Result { let data: &GetComments = &self.data; let user_claims: Option = match &data.auth { Some(auth) => match Claims::decode(&auth) { Ok(claims) => Some(claims.claims), Err(_e) => None, }, None => None, }; let user_id = match &user_claims { Some(claims) => Some(claims.id), None => None, }; let type_ = ListingType::from_str(&data.type_)?; let sort = SortType::from_str(&data.sort)?; let conn = pool.get()?; let comments = match CommentQueryBuilder::create(&conn) .listing_type(type_) .sort(&sort) .for_community_id(data.community_id) .my_user_id(user_id) .page(data.page) .limit(data.limit) .list() { Ok(comments) => comments, Err(_e) => return Err(APIError::err("couldnt_get_comments").into()), }; if let Some(ws) = websocket_info { // You don't need to join the specific community room, bc this is already handled by // GetCommunity if data.community_id.is_none() { if let Some(id) = ws.id { // 0 is the "all" community ws.chatserver.do_send(JoinCommunityRoom { community_id: 0, id, }); } } } Ok(GetCommentsResponse { comments }) } } pub fn send_local_notifs( conn: &PgConnection, mentions: &[MentionData], comment: &Comment, user: &User_, post: &Post, ) -> Vec { let mut recipient_ids = Vec::new(); let hostname = &format!("https://{}", Settings::get().hostname); // Send the local mentions for mention in mentions .iter() .filter(|m| m.is_local() && m.name.ne(&user.name)) .collect::>() { if let Ok(mention_user) = User_::read_from_name(&conn, &mention.name) { // TODO // At some point, make it so you can't tag the parent creator either // This can cause two notifications, one for reply and the other for mention recipient_ids.push(mention_user.id); let user_mention_form = UserMentionForm { recipient_id: mention_user.id, comment_id: comment.id, read: None, }; // Allow this to fail softly, since comment edits might re-update or replace it // Let the uniqueness handle this fail match UserMention::create(&conn, &user_mention_form) { Ok(_mention) => (), Err(_e) => error!("{}", &_e), }; // Send an email to those users that have notifications on if mention_user.send_notifications_to_email { if let Some(mention_email) = mention_user.email { let subject = &format!("{} - Mentioned by {}", Settings::get().hostname, user.name,); let html = &format!( "

User Mention


{} - {}

inbox", user.name, comment.content, hostname ); match send_email(subject, &mention_email, &mention_user.name, html) { Ok(_o) => _o, Err(e) => error!("{}", e), }; } } } } // Send notifs to the parent commenter / poster match comment.parent_id { Some(parent_id) => { if let Ok(parent_comment) = Comment::read(&conn, parent_id) { if parent_comment.creator_id != user.id { if let Ok(parent_user) = User_::read(&conn, parent_comment.creator_id) { recipient_ids.push(parent_user.id); if parent_user.send_notifications_to_email { if let Some(comment_reply_email) = parent_user.email { let subject = &format!("{} - Reply from {}", Settings::get().hostname, user.name,); let html = &format!( "

Comment Reply


{} - {}

inbox", user.name, comment.content, hostname ); match send_email(subject, &comment_reply_email, &parent_user.name, html) { Ok(_o) => _o, Err(e) => error!("{}", e), }; } } } } } } // Its a post None => { if post.creator_id != user.id { if let Ok(parent_user) = User_::read(&conn, post.creator_id) { recipient_ids.push(parent_user.id); if parent_user.send_notifications_to_email { if let Some(post_reply_email) = parent_user.email { let subject = &format!("{} - Reply from {}", Settings::get().hostname, user.name,); let html = &format!( "

Post Reply


{} - {}

inbox", user.name, comment.content, hostname ); match send_email(subject, &post_reply_email, &parent_user.name, html) { Ok(_o) => _o, Err(e) => error!("{}", e), }; } } } } } }; recipient_ids }