1 use actix_web::{error::ErrorBadRequest, *};
3 use chrono::{DateTime, NaiveDateTime, Utc};
4 use diesel::PgConnection;
5 use lemmy_api_structs::blocking;
6 use lemmy_db_queries::{
7 source::{community::Community_, user::User},
11 use lemmy_db_schema::source::{community::Community, user::User_};
13 comment_view::{CommentQueryBuilder, CommentView},
14 post_view::{PostQueryBuilder, PostView},
17 use lemmy_db_views_actor::user_mention_view::{UserMentionQueryBuilder, UserMentionView};
20 settings::structs::Settings,
21 utils::markdown_to_html,
24 use lemmy_websocket::LemmyContext;
26 extension::dublincore::DublinCoreExtensionBuilder,
32 use serde::Deserialize;
33 use std::{collections::HashMap, str::FromStr};
34 use strum::ParseError;
36 #[derive(Deserialize)]
48 pub fn config(cfg: &mut web::ServiceConfig) {
50 .route("/feeds/{type}/{name}.xml", web::get().to(get_feed))
51 .route("/feeds/all.xml", web::get().to(get_all_feed))
52 .route("/feeds/local.xml", web::get().to(get_local_feed));
56 static ref RSS_NAMESPACE: HashMap<String, String> = {
57 let mut h = HashMap::new();
60 rss::extension::dublincore::NAMESPACE.to_string(),
66 async fn get_all_feed(
67 info: web::Query<Params>,
68 context: web::Data<LemmyContext>,
69 ) -> Result<HttpResponse, Error> {
70 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
71 Ok(get_feed_data(&context, ListingType::All, sort_type).await?)
74 async fn get_local_feed(
75 info: web::Query<Params>,
76 context: web::Data<LemmyContext>,
77 ) -> Result<HttpResponse, Error> {
78 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
79 Ok(get_feed_data(&context, ListingType::Local, sort_type).await?)
82 async fn get_feed_data(
83 context: &LemmyContext,
84 listing_type: ListingType,
86 ) -> Result<HttpResponse, LemmyError> {
87 let site_view = blocking(context.pool(), move |conn| SiteView::read(&conn)).await??;
89 let listing_type_ = listing_type.clone();
90 let posts = blocking(context.pool(), move |conn| {
91 PostQueryBuilder::create(&conn)
92 .listing_type(&listing_type_)
98 let items = create_post_items(posts)?;
100 let mut channel_builder = ChannelBuilder::default();
102 .namespaces(RSS_NAMESPACE.to_owned())
106 listing_type.to_string()
108 .link(Settings::get().get_protocol_and_hostname())
111 if let Some(site_desc) = site_view.site.description {
112 channel_builder.description(&site_desc);
115 let rss = channel_builder.build().map_err(|e| anyhow!(e))?.to_string();
118 .content_type("application/rss+xml")
124 web::Path((req_type, param)): web::Path<(String, String)>,
125 info: web::Query<Params>,
126 context: web::Data<LemmyContext>,
127 ) -> Result<HttpResponse, Error> {
128 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
130 let request_type = match req_type.as_str() {
131 "u" => RequestType::User,
132 "c" => RequestType::Community,
133 "front" => RequestType::Front,
134 "inbox" => RequestType::Inbox,
135 _ => return Err(ErrorBadRequest(LemmyError::from(anyhow!("wrong_type")))),
138 let builder = blocking(context.pool(), move |conn| match request_type {
139 RequestType::User => get_feed_user(conn, &sort_type, param),
140 RequestType::Community => get_feed_community(conn, &sort_type, param),
141 RequestType::Front => get_feed_front(conn, &sort_type, param),
142 RequestType::Inbox => get_feed_inbox(conn, param),
145 .map_err(ErrorBadRequest)?;
147 let rss = builder.build().map_err(ErrorBadRequest)?.to_string();
151 .content_type("application/rss+xml")
156 fn get_sort_type(info: web::Query<Params>) -> Result<SortType, ParseError> {
157 let sort_query = info
160 .unwrap_or_else(|| SortType::Hot.to_string());
161 SortType::from_str(&sort_query)
166 sort_type: &SortType,
168 ) -> Result<ChannelBuilder, LemmyError> {
169 let site_view = SiteView::read(&conn)?;
170 let user = User_::find_by_username(&conn, &user_name)?;
171 let user_url = user.get_profile_url(&Settings::get().hostname());
173 let posts = PostQueryBuilder::create(&conn)
174 .listing_type(&ListingType::All)
179 let items = create_post_items(posts)?;
181 let mut channel_builder = ChannelBuilder::default();
183 .namespaces(RSS_NAMESPACE.to_owned())
184 .title(&format!("{} - {}", site_view.site.name, user.name))
191 fn get_feed_community(
193 sort_type: &SortType,
194 community_name: String,
195 ) -> Result<ChannelBuilder, LemmyError> {
196 let site_view = SiteView::read(&conn)?;
197 let community = Community::read_from_name(&conn, &community_name)?;
199 let posts = PostQueryBuilder::create(&conn)
200 .listing_type(&ListingType::All)
202 .community_id(community.id)
205 let items = create_post_items(posts)?;
207 let mut channel_builder = ChannelBuilder::default();
209 .namespaces(RSS_NAMESPACE.to_owned())
210 .title(&format!("{} - {}", site_view.site.name, community.name))
211 .link(community.actor_id.to_string())
214 if let Some(community_desc) = community.description {
215 channel_builder.description(&community_desc);
223 sort_type: &SortType,
225 ) -> Result<ChannelBuilder, LemmyError> {
226 let site_view = SiteView::read(&conn)?;
227 let user_id = Claims::decode(&jwt)?.claims.id;
229 let posts = PostQueryBuilder::create(&conn)
230 .listing_type(&ListingType::Subscribed)
235 let items = create_post_items(posts)?;
237 let mut channel_builder = ChannelBuilder::default();
239 .namespaces(RSS_NAMESPACE.to_owned())
240 .title(&format!("{} - Subscribed", site_view.site.name))
241 .link(Settings::get().get_protocol_and_hostname())
244 if let Some(site_desc) = site_view.site.description {
245 channel_builder.description(&site_desc);
251 fn get_feed_inbox(conn: &PgConnection, jwt: String) -> Result<ChannelBuilder, LemmyError> {
252 let site_view = SiteView::read(&conn)?;
253 let user_id = Claims::decode(&jwt)?.claims.id;
255 let sort = SortType::New;
257 let replies = CommentQueryBuilder::create(&conn)
258 .recipient_id(user_id)
263 let mentions = UserMentionQueryBuilder::create(&conn)
264 .recipient_id(user_id)
269 let items = create_reply_and_mention_items(replies, mentions)?;
271 let mut channel_builder = ChannelBuilder::default();
273 .namespaces(RSS_NAMESPACE.to_owned())
274 .title(&format!("{} - Inbox", site_view.site.name))
277 Settings::get().get_protocol_and_hostname()
281 if let Some(site_desc) = site_view.site.description {
282 channel_builder.description(&site_desc);
288 fn create_reply_and_mention_items(
289 replies: Vec<CommentView>,
290 mentions: Vec<UserMentionView>,
291 ) -> Result<Vec<Item>, LemmyError> {
292 let mut reply_items: Vec<Item> = replies
295 let reply_url = format!(
296 "{}/post/{}/comment/{}",
297 Settings::get().get_protocol_and_hostname(),
303 &r.comment.published,
308 .collect::<Result<Vec<Item>, LemmyError>>()?;
310 let mut mention_items: Vec<Item> = mentions
313 let mention_url = format!(
314 "{}/post/{}/comment/{}",
315 Settings::get().get_protocol_and_hostname(),
321 &m.comment.published,
326 .collect::<Result<Vec<Item>, LemmyError>>()?;
328 reply_items.append(&mut mention_items);
334 published: &NaiveDateTime,
337 ) -> Result<Item, LemmyError> {
338 let mut i = ItemBuilder::default();
339 i.title(format!("Reply from {}", creator_name));
340 let author_url = format!(
342 Settings::get().get_protocol_and_hostname(),
346 "/u/{} <a href=\"{}\">(link)</a>",
347 creator_name, author_url
349 let dt = DateTime::<Utc>::from_utc(*published, Utc);
350 i.pub_date(dt.to_rfc2822());
351 i.comments(url.to_owned());
352 let guid = GuidBuilder::default()
356 .map_err(|e| anyhow!(e))?;
358 i.link(url.to_owned());
360 let html = markdown_to_html(&content.to_string());
362 Ok(i.build().map_err(|e| anyhow!(e))?)
365 fn create_post_items(posts: Vec<PostView>) -> Result<Vec<Item>, LemmyError> {
366 let mut items: Vec<Item> = Vec::new();
369 let mut i = ItemBuilder::default();
370 let mut dc_extension = DublinCoreExtensionBuilder::default();
372 i.title(p.post.name);
374 dc_extension.creators(vec![p.creator.actor_id.to_string()]);
376 let dt = DateTime::<Utc>::from_utc(p.post.published, Utc);
377 i.pub_date(dt.to_rfc2822());
379 let post_url = format!(
381 Settings::get().get_protocol_and_hostname(),
384 i.link(post_url.to_owned());
385 i.comments(post_url.to_owned());
386 let guid = GuidBuilder::default()
390 .map_err(|e| anyhow!(e))?;
393 let community_url = format!(
395 Settings::get().get_protocol_and_hostname(),
399 // TODO: for category we should just put the name of the category, but then we would have
400 // to read each community from the db
403 let mut description = format!("submitted by <a href=\"{}\">{}</a> to <a href=\"{}\">{}</a><br>{} points | <a href=\"{}\">{} comments</a>",
412 // If its a url post, add it to the description
413 if let Some(url) = p.post.url {
414 let link_html = format!("<br><a href=\"{url}\">{url}</a>", url = url);
415 description.push_str(&link_html);
418 if let Some(body) = p.post.body {
419 let html = markdown_to_html(&body);
420 description.push_str(&html);
423 i.description(description);
425 i.dublin_core_ext(dc_extension.build().map_err(|e| anyhow!(e))?);
426 items.push(i.build().map_err(|e| anyhow!(e))?);