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::source::{community::Community, local_user::LocalUser, person::Person};
14 comment_view::{CommentQueryBuilder, CommentView},
15 post_view::{PostQueryBuilder, PostView},
18 use lemmy_db_views_actor::person_mention_view::{PersonMentionQueryBuilder, PersonMentionView};
21 settings::structs::Settings,
22 utils::markdown_to_html,
25 use lemmy_websocket::LemmyContext;
27 extension::dublincore::DublinCoreExtensionBuilder,
33 use serde::Deserialize;
34 use std::{collections::HashMap, str::FromStr};
35 use strum::ParseError;
37 #[derive(Deserialize)]
49 pub fn config(cfg: &mut web::ServiceConfig) {
51 .route("/feeds/{type}/{name}.xml", web::get().to(get_feed))
52 .route("/feeds/all.xml", web::get().to(get_all_feed))
53 .route("/feeds/local.xml", web::get().to(get_local_feed));
57 static ref RSS_NAMESPACE: HashMap<String, String> = {
58 let mut h = HashMap::new();
61 rss::extension::dublincore::NAMESPACE.to_string(),
67 async fn get_all_feed(
68 info: web::Query<Params>,
69 context: web::Data<LemmyContext>,
70 ) -> Result<HttpResponse, Error> {
71 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
72 Ok(get_feed_data(&context, ListingType::All, sort_type).await?)
75 async fn get_local_feed(
76 info: web::Query<Params>,
77 context: web::Data<LemmyContext>,
78 ) -> Result<HttpResponse, Error> {
79 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
80 Ok(get_feed_data(&context, ListingType::Local, sort_type).await?)
83 async fn get_feed_data(
84 context: &LemmyContext,
85 listing_type: ListingType,
87 ) -> Result<HttpResponse, LemmyError> {
88 let site_view = blocking(context.pool(), move |conn| SiteView::read(&conn)).await??;
90 let listing_type_ = listing_type.clone();
91 let posts = blocking(context.pool(), move |conn| {
92 PostQueryBuilder::create(&conn)
93 .listing_type(&listing_type_)
99 let items = create_post_items(posts)?;
101 let mut channel_builder = ChannelBuilder::default();
103 .namespaces(RSS_NAMESPACE.to_owned())
107 listing_type.to_string()
109 .link(Settings::get().get_protocol_and_hostname())
112 if let Some(site_desc) = site_view.site.description {
113 channel_builder.description(&site_desc);
116 let rss = channel_builder.build().map_err(|e| anyhow!(e))?.to_string();
119 .content_type("application/rss+xml")
125 web::Path((req_type, param)): web::Path<(String, String)>,
126 info: web::Query<Params>,
127 context: web::Data<LemmyContext>,
128 ) -> Result<HttpResponse, Error> {
129 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
131 let request_type = match req_type.as_str() {
132 "u" => RequestType::User,
133 "c" => RequestType::Community,
134 "front" => RequestType::Front,
135 "inbox" => RequestType::Inbox,
136 _ => return Err(ErrorBadRequest(LemmyError::from(anyhow!("wrong_type")))),
139 let builder = blocking(context.pool(), move |conn| match request_type {
140 RequestType::User => get_feed_user(conn, &sort_type, param),
141 RequestType::Community => get_feed_community(conn, &sort_type, param),
142 RequestType::Front => get_feed_front(conn, &sort_type, param),
143 RequestType::Inbox => get_feed_inbox(conn, param),
146 .map_err(ErrorBadRequest)?;
148 let rss = builder.build().map_err(ErrorBadRequest)?.to_string();
152 .content_type("application/rss+xml")
157 fn get_sort_type(info: web::Query<Params>) -> Result<SortType, ParseError> {
158 let sort_query = info
161 .unwrap_or_else(|| SortType::Hot.to_string());
162 SortType::from_str(&sort_query)
167 sort_type: &SortType,
169 ) -> Result<ChannelBuilder, LemmyError> {
170 let site_view = SiteView::read(&conn)?;
171 let person = Person::find_by_name(&conn, &user_name)?;
173 let posts = PostQueryBuilder::create(&conn)
174 .listing_type(&ListingType::All)
176 .creator_id(person.id)
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, person.name))
185 .link(person.actor_id.to_string())
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 local_user_id = Claims::decode(&jwt)?.claims.local_user_id;
228 let person_id = LocalUser::read(&conn, local_user_id)?.person_id;
230 let posts = PostQueryBuilder::create(&conn)
231 .listing_type(&ListingType::Subscribed)
232 .my_person_id(person_id)
236 let items = create_post_items(posts)?;
238 let mut channel_builder = ChannelBuilder::default();
240 .namespaces(RSS_NAMESPACE.to_owned())
241 .title(&format!("{} - Subscribed", site_view.site.name))
242 .link(Settings::get().get_protocol_and_hostname())
245 if let Some(site_desc) = site_view.site.description {
246 channel_builder.description(&site_desc);
252 fn get_feed_inbox(conn: &PgConnection, jwt: String) -> Result<ChannelBuilder, LemmyError> {
253 let site_view = SiteView::read(&conn)?;
254 let local_user_id = Claims::decode(&jwt)?.claims.local_user_id;
255 let person_id = LocalUser::read(&conn, local_user_id)?.person_id;
257 let sort = SortType::New;
259 let replies = CommentQueryBuilder::create(&conn)
260 .recipient_id(person_id)
261 .my_person_id(person_id)
265 let mentions = PersonMentionQueryBuilder::create(&conn)
266 .recipient_id(person_id)
267 .my_person_id(person_id)
271 let items = create_reply_and_mention_items(replies, mentions)?;
273 let mut channel_builder = ChannelBuilder::default();
275 .namespaces(RSS_NAMESPACE.to_owned())
276 .title(&format!("{} - Inbox", site_view.site.name))
279 Settings::get().get_protocol_and_hostname()
283 if let Some(site_desc) = site_view.site.description {
284 channel_builder.description(&site_desc);
290 fn create_reply_and_mention_items(
291 replies: Vec<CommentView>,
292 mentions: Vec<PersonMentionView>,
293 ) -> Result<Vec<Item>, LemmyError> {
294 let mut reply_items: Vec<Item> = replies
297 let reply_url = format!(
298 "{}/post/{}/comment/{}",
299 Settings::get().get_protocol_and_hostname(),
305 &r.comment.published,
310 .collect::<Result<Vec<Item>, LemmyError>>()?;
312 let mut mention_items: Vec<Item> = mentions
315 let mention_url = format!(
316 "{}/post/{}/comment/{}",
317 Settings::get().get_protocol_and_hostname(),
323 &m.comment.published,
328 .collect::<Result<Vec<Item>, LemmyError>>()?;
330 reply_items.append(&mut mention_items);
336 published: &NaiveDateTime,
339 ) -> Result<Item, LemmyError> {
340 let mut i = ItemBuilder::default();
341 i.title(format!("Reply from {}", creator_name));
342 let author_url = format!(
344 Settings::get().get_protocol_and_hostname(),
348 "/u/{} <a href=\"{}\">(link)</a>",
349 creator_name, author_url
351 let dt = DateTime::<Utc>::from_utc(*published, Utc);
352 i.pub_date(dt.to_rfc2822());
353 i.comments(url.to_owned());
354 let guid = GuidBuilder::default()
358 .map_err(|e| anyhow!(e))?;
360 i.link(url.to_owned());
362 let html = markdown_to_html(&content.to_string());
364 Ok(i.build().map_err(|e| anyhow!(e))?)
367 fn create_post_items(posts: Vec<PostView>) -> Result<Vec<Item>, LemmyError> {
368 let mut items: Vec<Item> = Vec::new();
371 let mut i = ItemBuilder::default();
372 let mut dc_extension = DublinCoreExtensionBuilder::default();
374 i.title(p.post.name);
376 dc_extension.creators(vec![p.creator.actor_id.to_string()]);
378 let dt = DateTime::<Utc>::from_utc(p.post.published, Utc);
379 i.pub_date(dt.to_rfc2822());
381 let post_url = format!(
383 Settings::get().get_protocol_and_hostname(),
386 i.link(post_url.to_owned());
387 i.comments(post_url.to_owned());
388 let guid = GuidBuilder::default()
392 .map_err(|e| anyhow!(e))?;
395 let community_url = format!(
397 Settings::get().get_protocol_and_hostname(),
402 let mut description = format!("submitted by <a href=\"{}\">{}</a> to <a href=\"{}\">{}</a><br>{} points | <a href=\"{}\">{} comments</a>",
411 // If its a url post, add it to the description
412 if let Some(url) = p.post.url {
413 let link_html = format!("<br><a href=\"{url}\">{url}</a>", url = url);
414 description.push_str(&link_html);
417 if let Some(body) = p.post.body {
418 let html = markdown_to_html(&body);
419 description.push_str(&html);
422 i.description(description);
424 i.dublin_core_ext(dc_extension.build().map_err(|e| anyhow!(e))?);
425 items.push(i.build().map_err(|e| anyhow!(e))?);