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_, person::Person_},
12 use lemmy_db_schema::{
13 source::{community::Community, local_user::LocalUser, person::Person},
17 comment_view::{CommentQueryBuilder, CommentView},
18 post_view::{PostQueryBuilder, PostView},
21 use lemmy_db_views_actor::person_mention_view::{PersonMentionQueryBuilder, PersonMentionView};
24 settings::structs::Settings,
25 utils::markdown_to_html,
28 use lemmy_websocket::LemmyContext;
30 extension::dublincore::DublinCoreExtensionBuilder,
36 use serde::Deserialize;
37 use std::{collections::HashMap, str::FromStr};
38 use strum::ParseError;
40 #[derive(Deserialize)]
52 pub fn config(cfg: &mut web::ServiceConfig) {
54 .route("/feeds/{type}/{name}.xml", web::get().to(get_feed))
55 .route("/feeds/all.xml", web::get().to(get_all_feed))
56 .route("/feeds/local.xml", web::get().to(get_local_feed));
60 static ref RSS_NAMESPACE: HashMap<String, String> = {
61 let mut h = HashMap::new();
64 rss::extension::dublincore::NAMESPACE.to_string(),
70 async fn get_all_feed(
71 info: web::Query<Params>,
72 context: web::Data<LemmyContext>,
73 ) -> Result<HttpResponse, Error> {
74 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
75 Ok(get_feed_data(&context, ListingType::All, sort_type).await?)
78 async fn get_local_feed(
79 info: web::Query<Params>,
80 context: web::Data<LemmyContext>,
81 ) -> Result<HttpResponse, Error> {
82 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
83 Ok(get_feed_data(&context, ListingType::Local, sort_type).await?)
86 async fn get_feed_data(
87 context: &LemmyContext,
88 listing_type: ListingType,
90 ) -> Result<HttpResponse, LemmyError> {
91 let site_view = blocking(context.pool(), move |conn| SiteView::read(&conn)).await??;
93 let listing_type_ = listing_type.clone();
94 let posts = blocking(context.pool(), move |conn| {
95 PostQueryBuilder::create(&conn)
96 .listing_type(&listing_type_)
102 let items = create_post_items(posts)?;
104 let mut channel_builder = ChannelBuilder::default();
106 .namespaces(RSS_NAMESPACE.to_owned())
110 listing_type.to_string()
112 .link(Settings::get().get_protocol_and_hostname())
115 if let Some(site_desc) = site_view.site.description {
116 channel_builder.description(&site_desc);
119 let rss = channel_builder.build().map_err(|e| anyhow!(e))?.to_string();
122 .content_type("application/rss+xml")
128 web::Path((req_type, param)): web::Path<(String, String)>,
129 info: web::Query<Params>,
130 context: web::Data<LemmyContext>,
131 ) -> Result<HttpResponse, Error> {
132 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
134 let request_type = match req_type.as_str() {
135 "u" => RequestType::User,
136 "c" => RequestType::Community,
137 "front" => RequestType::Front,
138 "inbox" => RequestType::Inbox,
139 _ => return Err(ErrorBadRequest(LemmyError::from(anyhow!("wrong_type")))),
142 let builder = blocking(context.pool(), move |conn| match request_type {
143 RequestType::User => get_feed_user(conn, &sort_type, param),
144 RequestType::Community => get_feed_community(conn, &sort_type, param),
145 RequestType::Front => get_feed_front(conn, &sort_type, param),
146 RequestType::Inbox => get_feed_inbox(conn, param),
149 .map_err(ErrorBadRequest)?;
151 let rss = builder.build().map_err(ErrorBadRequest)?.to_string();
155 .content_type("application/rss+xml")
160 fn get_sort_type(info: web::Query<Params>) -> Result<SortType, ParseError> {
161 let sort_query = info
164 .unwrap_or_else(|| SortType::Hot.to_string());
165 SortType::from_str(&sort_query)
170 sort_type: &SortType,
172 ) -> Result<ChannelBuilder, LemmyError> {
173 let site_view = SiteView::read(&conn)?;
174 let person = Person::find_by_name(&conn, &user_name)?;
176 let posts = PostQueryBuilder::create(&conn)
177 .listing_type(&ListingType::All)
179 .creator_id(person.id)
182 let items = create_post_items(posts)?;
184 let mut channel_builder = ChannelBuilder::default();
186 .namespaces(RSS_NAMESPACE.to_owned())
187 .title(&format!("{} - {}", site_view.site.name, person.name))
188 .link(person.actor_id.to_string())
194 fn get_feed_community(
196 sort_type: &SortType,
197 community_name: String,
198 ) -> Result<ChannelBuilder, LemmyError> {
199 let site_view = SiteView::read(&conn)?;
200 let community = Community::read_from_name(&conn, &community_name)?;
202 let posts = PostQueryBuilder::create(&conn)
203 .listing_type(&ListingType::All)
205 .community_id(community.id)
208 let items = create_post_items(posts)?;
210 let mut channel_builder = ChannelBuilder::default();
212 .namespaces(RSS_NAMESPACE.to_owned())
213 .title(&format!("{} - {}", site_view.site.name, community.name))
214 .link(community.actor_id.to_string())
217 if let Some(community_desc) = community.description {
218 channel_builder.description(&community_desc);
226 sort_type: &SortType,
228 ) -> Result<ChannelBuilder, LemmyError> {
229 let site_view = SiteView::read(&conn)?;
230 let local_user_id = LocalUserId(Claims::decode(&jwt)?.claims.sub);
231 let person_id = LocalUser::read(&conn, local_user_id)?.person_id;
233 let posts = PostQueryBuilder::create(&conn)
234 .listing_type(&ListingType::Subscribed)
235 .my_person_id(person_id)
239 let items = create_post_items(posts)?;
241 let mut channel_builder = ChannelBuilder::default();
243 .namespaces(RSS_NAMESPACE.to_owned())
244 .title(&format!("{} - Subscribed", site_view.site.name))
245 .link(Settings::get().get_protocol_and_hostname())
248 if let Some(site_desc) = site_view.site.description {
249 channel_builder.description(&site_desc);
255 fn get_feed_inbox(conn: &PgConnection, jwt: String) -> Result<ChannelBuilder, LemmyError> {
256 let site_view = SiteView::read(&conn)?;
257 let local_user_id = LocalUserId(Claims::decode(&jwt)?.claims.sub);
258 let person_id = LocalUser::read(&conn, local_user_id)?.person_id;
260 let sort = SortType::New;
262 let replies = CommentQueryBuilder::create(&conn)
263 .recipient_id(person_id)
264 .my_person_id(person_id)
268 let mentions = PersonMentionQueryBuilder::create(&conn)
269 .recipient_id(person_id)
270 .my_person_id(person_id)
274 let items = create_reply_and_mention_items(replies, mentions)?;
276 let mut channel_builder = ChannelBuilder::default();
278 .namespaces(RSS_NAMESPACE.to_owned())
279 .title(&format!("{} - Inbox", site_view.site.name))
282 Settings::get().get_protocol_and_hostname()
286 if let Some(site_desc) = site_view.site.description {
287 channel_builder.description(&site_desc);
293 fn create_reply_and_mention_items(
294 replies: Vec<CommentView>,
295 mentions: Vec<PersonMentionView>,
296 ) -> Result<Vec<Item>, LemmyError> {
297 let mut reply_items: Vec<Item> = replies
300 let reply_url = format!(
301 "{}/post/{}/comment/{}",
302 Settings::get().get_protocol_and_hostname(),
308 &r.comment.published,
313 .collect::<Result<Vec<Item>, LemmyError>>()?;
315 let mut mention_items: Vec<Item> = mentions
318 let mention_url = format!(
319 "{}/post/{}/comment/{}",
320 Settings::get().get_protocol_and_hostname(),
326 &m.comment.published,
331 .collect::<Result<Vec<Item>, LemmyError>>()?;
333 reply_items.append(&mut mention_items);
339 published: &NaiveDateTime,
342 ) -> Result<Item, LemmyError> {
343 let mut i = ItemBuilder::default();
344 i.title(format!("Reply from {}", creator_name));
345 let author_url = format!(
347 Settings::get().get_protocol_and_hostname(),
351 "/u/{} <a href=\"{}\">(link)</a>",
352 creator_name, author_url
354 let dt = DateTime::<Utc>::from_utc(*published, Utc);
355 i.pub_date(dt.to_rfc2822());
356 i.comments(url.to_owned());
357 let guid = GuidBuilder::default()
361 .map_err(|e| anyhow!(e))?;
363 i.link(url.to_owned());
365 let html = markdown_to_html(&content.to_string());
367 Ok(i.build().map_err(|e| anyhow!(e))?)
370 fn create_post_items(posts: Vec<PostView>) -> Result<Vec<Item>, LemmyError> {
371 let mut items: Vec<Item> = Vec::new();
374 let mut i = ItemBuilder::default();
375 let mut dc_extension = DublinCoreExtensionBuilder::default();
377 i.title(p.post.name);
379 dc_extension.creators(vec![p.creator.actor_id.to_string()]);
381 let dt = DateTime::<Utc>::from_utc(p.post.published, Utc);
382 i.pub_date(dt.to_rfc2822());
384 let post_url = format!(
386 Settings::get().get_protocol_and_hostname(),
389 i.link(post_url.to_owned());
390 i.comments(post_url.to_owned());
391 let guid = GuidBuilder::default()
395 .map_err(|e| anyhow!(e))?;
398 let community_url = format!(
400 Settings::get().get_protocol_and_hostname(),
405 let mut description = format!("submitted by <a href=\"{}\">{}</a> to <a href=\"{}\">{}</a><br>{} points | <a href=\"{}\">{} comments</a>",
414 // If its a url post, add it to the description
415 if let Some(url) = p.post.url {
416 let link_html = format!("<br><a href=\"{url}\">{url}</a>", url = url);
417 description.push_str(&link_html);
420 if let Some(body) = p.post.body {
421 let html = markdown_to_html(&body);
422 description.push_str(&html);
425 i.description(description);
427 i.dublin_core_ext(dc_extension.build().map_err(|e| anyhow!(e))?);
428 items.push(i.build().map_err(|e| anyhow!(e))?);