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};
18 use lemmy_utils::{claims::Claims, settings::Settings, utils::markdown_to_html, LemmyError};
19 use lemmy_websocket::LemmyContext;
21 extension::dublincore::DublinCoreExtensionBuilder,
27 use serde::Deserialize;
28 use std::{collections::HashMap, str::FromStr};
29 use strum::ParseError;
31 #[derive(Deserialize)]
43 pub fn config(cfg: &mut web::ServiceConfig) {
45 .route("/feeds/{type}/{name}.xml", web::get().to(get_feed))
46 .route("/feeds/all.xml", web::get().to(get_all_feed))
47 .route("/feeds/local.xml", web::get().to(get_local_feed));
51 static ref RSS_NAMESPACE: HashMap<String, String> = {
52 let mut h = HashMap::new();
55 rss::extension::dublincore::NAMESPACE.to_string(),
61 async fn get_all_feed(
62 info: web::Query<Params>,
63 context: web::Data<LemmyContext>,
64 ) -> Result<HttpResponse, Error> {
65 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
66 Ok(get_feed_data(&context, ListingType::All, sort_type).await?)
69 async fn get_local_feed(
70 info: web::Query<Params>,
71 context: web::Data<LemmyContext>,
72 ) -> Result<HttpResponse, Error> {
73 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
74 Ok(get_feed_data(&context, ListingType::Local, sort_type).await?)
77 async fn get_feed_data(
78 context: &LemmyContext,
79 listing_type: ListingType,
81 ) -> Result<HttpResponse, LemmyError> {
82 let site_view = blocking(context.pool(), move |conn| SiteView::read(&conn)).await??;
84 let listing_type_ = listing_type.clone();
85 let posts = blocking(context.pool(), move |conn| {
86 PostQueryBuilder::create(&conn)
87 .listing_type(&listing_type_)
93 let items = create_post_items(posts)?;
95 let mut channel_builder = ChannelBuilder::default();
97 .namespaces(RSS_NAMESPACE.to_owned())
101 listing_type.to_string()
103 .link(Settings::get().get_protocol_and_hostname())
106 if let Some(site_desc) = site_view.site.description {
107 channel_builder.description(&site_desc);
110 let rss = channel_builder.build().map_err(|e| anyhow!(e))?.to_string();
113 .content_type("application/rss+xml")
119 web::Path((req_type, param)): web::Path<(String, String)>,
120 info: web::Query<Params>,
121 context: web::Data<LemmyContext>,
122 ) -> Result<HttpResponse, Error> {
123 let sort_type = get_sort_type(info).map_err(ErrorBadRequest)?;
125 let request_type = match req_type.as_str() {
126 "u" => RequestType::User,
127 "c" => RequestType::Community,
128 "front" => RequestType::Front,
129 "inbox" => RequestType::Inbox,
130 _ => return Err(ErrorBadRequest(LemmyError::from(anyhow!("wrong_type")))),
133 let builder = blocking(context.pool(), move |conn| match request_type {
134 RequestType::User => get_feed_user(conn, &sort_type, param),
135 RequestType::Community => get_feed_community(conn, &sort_type, param),
136 RequestType::Front => get_feed_front(conn, &sort_type, param),
137 RequestType::Inbox => get_feed_inbox(conn, param),
140 .map_err(ErrorBadRequest)?;
142 let rss = builder.build().map_err(ErrorBadRequest)?.to_string();
146 .content_type("application/rss+xml")
151 fn get_sort_type(info: web::Query<Params>) -> Result<SortType, ParseError> {
152 let sort_query = info
155 .unwrap_or_else(|| SortType::Hot.to_string());
156 SortType::from_str(&sort_query)
161 sort_type: &SortType,
163 ) -> Result<ChannelBuilder, LemmyError> {
164 let site_view = SiteView::read(&conn)?;
165 let user = User_::find_by_username(&conn, &user_name)?;
166 let user_url = user.get_profile_url(&Settings::get().hostname);
168 let posts = PostQueryBuilder::create(&conn)
169 .listing_type(&ListingType::All)
174 let items = create_post_items(posts)?;
176 let mut channel_builder = ChannelBuilder::default();
178 .namespaces(RSS_NAMESPACE.to_owned())
179 .title(&format!("{} - {}", site_view.site.name, user.name))
186 fn get_feed_community(
188 sort_type: &SortType,
189 community_name: String,
190 ) -> Result<ChannelBuilder, LemmyError> {
191 let site_view = SiteView::read(&conn)?;
192 let community = Community::read_from_name(&conn, &community_name)?;
194 let posts = PostQueryBuilder::create(&conn)
195 .listing_type(&ListingType::All)
197 .community_id(community.id)
200 let items = create_post_items(posts)?;
202 let mut channel_builder = ChannelBuilder::default();
204 .namespaces(RSS_NAMESPACE.to_owned())
205 .title(&format!("{} - {}", site_view.site.name, community.name))
206 .link(community.actor_id.to_string())
209 if let Some(community_desc) = community.description {
210 channel_builder.description(&community_desc);
218 sort_type: &SortType,
220 ) -> Result<ChannelBuilder, LemmyError> {
221 let site_view = SiteView::read(&conn)?;
222 let user_id = Claims::decode(&jwt)?.claims.id;
224 let posts = PostQueryBuilder::create(&conn)
225 .listing_type(&ListingType::Subscribed)
230 let items = create_post_items(posts)?;
232 let mut channel_builder = ChannelBuilder::default();
234 .namespaces(RSS_NAMESPACE.to_owned())
235 .title(&format!("{} - Subscribed", site_view.site.name))
236 .link(Settings::get().get_protocol_and_hostname())
239 if let Some(site_desc) = site_view.site.description {
240 channel_builder.description(&site_desc);
246 fn get_feed_inbox(conn: &PgConnection, jwt: String) -> Result<ChannelBuilder, LemmyError> {
247 let site_view = SiteView::read(&conn)?;
248 let user_id = Claims::decode(&jwt)?.claims.id;
250 let sort = SortType::New;
252 let replies = CommentQueryBuilder::create(&conn)
253 .recipient_id(user_id)
258 let mentions = UserMentionQueryBuilder::create(&conn)
259 .recipient_id(user_id)
264 let items = create_reply_and_mention_items(replies, mentions)?;
266 let mut channel_builder = ChannelBuilder::default();
268 .namespaces(RSS_NAMESPACE.to_owned())
269 .title(&format!("{} - Inbox", site_view.site.name))
272 Settings::get().get_protocol_and_hostname()
276 if let Some(site_desc) = site_view.site.description {
277 channel_builder.description(&site_desc);
283 fn create_reply_and_mention_items(
284 replies: Vec<CommentView>,
285 mentions: Vec<UserMentionView>,
286 ) -> Result<Vec<Item>, LemmyError> {
287 let mut reply_items: Vec<Item> = replies
290 let reply_url = format!(
291 "{}/post/{}/comment/{}",
292 Settings::get().get_protocol_and_hostname(),
298 &r.comment.published,
303 .collect::<Result<Vec<Item>, LemmyError>>()?;
305 let mut mention_items: Vec<Item> = mentions
308 let mention_url = format!(
309 "{}/post/{}/comment/{}",
310 Settings::get().get_protocol_and_hostname(),
316 &m.comment.published,
321 .collect::<Result<Vec<Item>, LemmyError>>()?;
323 reply_items.append(&mut mention_items);
329 published: &NaiveDateTime,
332 ) -> Result<Item, LemmyError> {
333 let mut i = ItemBuilder::default();
334 i.title(format!("Reply from {}", creator_name));
335 let author_url = format!(
337 Settings::get().get_protocol_and_hostname(),
341 "/u/{} <a href=\"{}\">(link)</a>",
342 creator_name, author_url
344 let dt = DateTime::<Utc>::from_utc(*published, Utc);
345 i.pub_date(dt.to_rfc2822());
346 i.comments(url.to_owned());
347 let guid = GuidBuilder::default()
351 .map_err(|e| anyhow!(e))?;
353 i.link(url.to_owned());
355 let html = markdown_to_html(&content.to_string());
357 Ok(i.build().map_err(|e| anyhow!(e))?)
360 fn create_post_items(posts: Vec<PostView>) -> Result<Vec<Item>, LemmyError> {
361 let mut items: Vec<Item> = Vec::new();
364 let mut i = ItemBuilder::default();
365 let mut dc_extension = DublinCoreExtensionBuilder::default();
367 i.title(p.post.name);
369 dc_extension.creators(vec![p.creator.actor_id.to_string()]);
371 let dt = DateTime::<Utc>::from_utc(p.post.published, Utc);
372 i.pub_date(dt.to_rfc2822());
374 let post_url = format!(
376 Settings::get().get_protocol_and_hostname(),
379 i.link(post_url.to_owned());
380 i.comments(post_url.to_owned());
381 let guid = GuidBuilder::default()
385 .map_err(|e| anyhow!(e))?;
388 let community_url = format!(
390 Settings::get().get_protocol_and_hostname(),
394 // TODO: for category we should just put the name of the category, but then we would have
395 // to read each community from the db
398 let mut description = format!("submitted by <a href=\"{}\">{}</a> to <a href=\"{}\">{}</a><br>{} points | <a href=\"{}\">{} comments</a>",
407 // If its a url post, add it to the description
408 if let Some(url) = p.post.url {
409 let link_html = format!("<br><a href=\"{url}\">{url}</a>", url = url);
410 description.push_str(&link_html);
413 if let Some(body) = p.post.body {
414 let html = markdown_to_html(&body);
415 description.push_str(&html);
418 i.description(description);
420 i.dublin_core_ext(dc_extension.build().map_err(|e| anyhow!(e))?);
421 items.push(i.build().map_err(|e| anyhow!(e))?);