1 use actix_web::{error::ErrorBadRequest, *};
3 use chrono::{DateTime, NaiveDateTime, Utc};
4 use diesel::PgConnection;
5 use lemmy_api_common::blocking;
8 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};
19 use lemmy_utils::{claims::Claims, utils::markdown_to_html, LemmyError};
20 use lemmy_websocket::LemmyContext;
21 use once_cell::sync::Lazy;
23 extension::dublincore::DublinCoreExtensionBuilder,
29 use serde::Deserialize;
30 use std::{collections::HashMap, str::FromStr};
31 use strum::ParseError;
33 #[derive(Deserialize)]
45 pub fn config(cfg: &mut web::ServiceConfig) {
47 .route("/feeds/{type}/{name}.xml", web::get().to(get_feed))
48 .route("/feeds/all.xml", web::get().to(get_all_feed))
49 .route("/feeds/local.xml", web::get().to(get_local_feed));
52 static RSS_NAMESPACE: Lazy<HashMap<String, String>> = Lazy::new(|| {
53 let mut h = HashMap::new();
56 rss::extension::dublincore::NAMESPACE.to_string(),
61 #[tracing::instrument(skip_all)]
62 async fn get_all_feed(
63 info: web::Query<Params>,
64 context: web::Data<LemmyContext>,
65 ) -> Result<HttpResponse, Error> {
66 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
67 Ok(get_feed_data(&context, ListingType::All, sort_type).await?)
70 #[tracing::instrument(skip_all)]
71 async fn get_local_feed(
72 info: web::Query<Params>,
73 context: web::Data<LemmyContext>,
74 ) -> Result<HttpResponse, Error> {
75 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
76 Ok(get_feed_data(&context, ListingType::Local, sort_type).await?)
79 #[tracing::instrument(skip_all)]
80 async fn get_feed_data(
81 context: &LemmyContext,
82 listing_type: ListingType,
84 ) -> Result<HttpResponse, LemmyError> {
85 let site_view = blocking(context.pool(), SiteView::read).await??;
87 let posts = blocking(context.pool(), move |conn| {
88 PostQueryBuilder::create(conn)
89 .listing_type(listing_type)
95 let items = create_post_items(posts, &context.settings().get_protocol_and_hostname())?;
97 let mut channel_builder = ChannelBuilder::default();
99 .namespaces(RSS_NAMESPACE.to_owned())
103 listing_type.to_string()
105 .link(context.settings().get_protocol_and_hostname())
108 if let Some(site_desc) = site_view.site.description {
109 channel_builder.description(&site_desc);
112 let rss = channel_builder.build().map_err(|e| anyhow!(e))?.to_string();
115 .content_type("application/rss+xml")
120 #[tracing::instrument(skip_all)]
123 info: web::Query<Params>,
124 context: web::Data<LemmyContext>,
125 ) -> Result<HttpResponse, Error> {
126 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
128 let req_type: String = req.match_info().get("type").unwrap_or("none").parse()?;
129 let param: String = req.match_info().get("name").unwrap_or("none").parse()?;
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 jwt_secret = context.secret().jwt_secret.to_owned();
140 let protocol_and_hostname = context.settings().get_protocol_and_hostname();
142 let builder = blocking(context.pool(), move |conn| match request_type {
143 RequestType::User => get_feed_user(conn, &sort_type, ¶m, &protocol_and_hostname),
144 RequestType::Community => get_feed_community(conn, &sort_type, ¶m, &protocol_and_hostname),
145 RequestType::Front => get_feed_front(
150 &protocol_and_hostname,
152 RequestType::Inbox => get_feed_inbox(conn, &jwt_secret, ¶m, &protocol_and_hostname),
155 .map_err(ErrorBadRequest)?;
157 let rss = builder.build().map_err(ErrorBadRequest)?.to_string();
161 .content_type("application/rss+xml")
166 fn get_sort_type(info: web::Query<Params>) -> Result<SortType, ParseError> {
167 let sort_query = info
170 .unwrap_or_else(|| SortType::Hot.to_string());
171 SortType::from_str(&sort_query)
174 #[tracing::instrument(skip_all)]
177 sort_type: &SortType,
179 protocol_and_hostname: &str,
180 ) -> Result<ChannelBuilder, LemmyError> {
181 let site_view = SiteView::read(conn)?;
182 let person = Person::find_by_name(conn, user_name)?;
184 let posts = PostQueryBuilder::create(conn)
185 .listing_type(ListingType::All)
187 .creator_id(person.id)
190 let items = create_post_items(posts, protocol_and_hostname)?;
192 let mut channel_builder = ChannelBuilder::default();
194 .namespaces(RSS_NAMESPACE.to_owned())
195 .title(&format!("{} - {}", site_view.site.name, person.name))
196 .link(person.actor_id.to_string())
202 #[tracing::instrument(skip_all)]
203 fn get_feed_community(
205 sort_type: &SortType,
206 community_name: &str,
207 protocol_and_hostname: &str,
208 ) -> Result<ChannelBuilder, LemmyError> {
209 let site_view = SiteView::read(conn)?;
210 let community = Community::read_from_name(conn, community_name)?;
212 let posts = PostQueryBuilder::create(conn)
213 .listing_type(ListingType::All)
215 .community_id(community.id)
218 let items = create_post_items(posts, protocol_and_hostname)?;
220 let mut channel_builder = ChannelBuilder::default();
222 .namespaces(RSS_NAMESPACE.to_owned())
223 .title(&format!("{} - {}", site_view.site.name, community.name))
224 .link(community.actor_id.to_string())
227 if let Some(community_desc) = community.description {
228 channel_builder.description(&community_desc);
234 #[tracing::instrument(skip_all)]
238 sort_type: &SortType,
240 protocol_and_hostname: &str,
241 ) -> Result<ChannelBuilder, LemmyError> {
242 let site_view = SiteView::read(conn)?;
243 let local_user_id = LocalUserId(Claims::decode(jwt, jwt_secret)?.claims.sub);
244 let local_user = LocalUser::read(conn, local_user_id)?;
246 let posts = PostQueryBuilder::create(conn)
247 .listing_type(ListingType::Subscribed)
248 .my_person_id(local_user.person_id)
249 .show_bot_accounts(local_user.show_bot_accounts)
250 .show_read_posts(local_user.show_read_posts)
254 let items = create_post_items(posts, protocol_and_hostname)?;
256 let mut channel_builder = ChannelBuilder::default();
258 .namespaces(RSS_NAMESPACE.to_owned())
259 .title(&format!("{} - Subscribed", site_view.site.name))
260 .link(protocol_and_hostname)
263 if let Some(site_desc) = site_view.site.description {
264 channel_builder.description(&site_desc);
270 #[tracing::instrument(skip_all)]
275 protocol_and_hostname: &str,
276 ) -> Result<ChannelBuilder, LemmyError> {
277 let site_view = SiteView::read(conn)?;
278 let local_user_id = LocalUserId(Claims::decode(jwt, jwt_secret)?.claims.sub);
279 let local_user = LocalUser::read(conn, local_user_id)?;
280 let person_id = local_user.person_id;
281 let show_bot_accounts = local_user.show_bot_accounts;
283 let sort = SortType::New;
285 let replies = CommentQueryBuilder::create(conn)
286 .recipient_id(person_id)
287 .my_person_id(person_id)
288 .show_bot_accounts(show_bot_accounts)
292 let mentions = PersonMentionQueryBuilder::create(conn)
293 .recipient_id(person_id)
294 .my_person_id(person_id)
298 let items = create_reply_and_mention_items(replies, mentions, protocol_and_hostname)?;
300 let mut channel_builder = ChannelBuilder::default();
302 .namespaces(RSS_NAMESPACE.to_owned())
303 .title(&format!("{} - Inbox", site_view.site.name))
304 .link(format!("{}/inbox", protocol_and_hostname,))
307 if let Some(site_desc) = site_view.site.description {
308 channel_builder.description(&site_desc);
314 #[tracing::instrument(skip_all)]
315 fn create_reply_and_mention_items(
316 replies: Vec<CommentView>,
317 mentions: Vec<PersonMentionView>,
318 protocol_and_hostname: &str,
319 ) -> Result<Vec<Item>, LemmyError> {
320 let mut reply_items: Vec<Item> = replies
323 let reply_url = format!(
324 "{}/post/{}/comment/{}",
325 protocol_and_hostname, r.post.id, r.comment.id
329 &r.comment.published,
332 protocol_and_hostname,
335 .collect::<Result<Vec<Item>, LemmyError>>()?;
337 let mut mention_items: Vec<Item> = mentions
340 let mention_url = format!(
341 "{}/post/{}/comment/{}",
342 protocol_and_hostname, m.post.id, m.comment.id
346 &m.comment.published,
349 protocol_and_hostname,
352 .collect::<Result<Vec<Item>, LemmyError>>()?;
354 reply_items.append(&mut mention_items);
358 #[tracing::instrument(skip_all)]
361 published: &NaiveDateTime,
364 protocol_and_hostname: &str,
365 ) -> Result<Item, LemmyError> {
366 let mut i = ItemBuilder::default();
367 i.title(format!("Reply from {}", creator_name));
368 let author_url = format!("{}/u/{}", protocol_and_hostname, creator_name);
370 "/u/{} <a href=\"{}\">(link)</a>",
371 creator_name, author_url
373 let dt = DateTime::<Utc>::from_utc(*published, Utc);
374 i.pub_date(dt.to_rfc2822());
375 i.comments(url.to_owned());
376 let guid = GuidBuilder::default()
380 .map_err(|e| anyhow!(e))?;
382 i.link(url.to_owned());
384 let html = markdown_to_html(&content.to_string());
386 Ok(i.build().map_err(|e| anyhow!(e))?)
389 #[tracing::instrument(skip_all)]
390 fn create_post_items(
391 posts: Vec<PostView>,
392 protocol_and_hostname: &str,
393 ) -> Result<Vec<Item>, LemmyError> {
394 let mut items: Vec<Item> = Vec::new();
397 let mut i = ItemBuilder::default();
398 let mut dc_extension = DublinCoreExtensionBuilder::default();
400 i.title(p.post.name);
402 dc_extension.creators(vec![p.creator.actor_id.to_string()]);
404 let dt = DateTime::<Utc>::from_utc(p.post.published, Utc);
405 i.pub_date(dt.to_rfc2822());
407 let post_url = format!("{}/post/{}", protocol_and_hostname, p.post.id);
408 i.link(post_url.to_owned());
409 i.comments(post_url.to_owned());
410 let guid = GuidBuilder::default()
414 .map_err(|e| anyhow!(e))?;
417 let community_url = format!("{}/c/{}", protocol_and_hostname, p.community.name);
420 let mut description = format!("submitted by <a href=\"{}\">{}</a> to <a href=\"{}\">{}</a><br>{} points | <a href=\"{}\">{} comments</a>",
429 // If its a url post, add it to the description
430 if let Some(url) = p.post.url {
431 let link_html = format!("<br><a href=\"{url}\">{url}</a>", url = url);
432 description.push_str(&link_html);
435 if let Some(body) = p.post.body {
436 let html = markdown_to_html(&body);
437 description.push_str(&html);
440 i.description(description);
442 i.dublin_core_ext(dc_extension.build().map_err(|e| anyhow!(e))?);
443 items.push(i.build().map_err(|e| anyhow!(e))?);