2019-11-16 02:17:42 +00:00
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extern crate rss;
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extern crate htmlescape;
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2019-11-19 17:07:10 +00:00
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use super::*;
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2019-11-16 02:17:42 +00:00
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use crate::Settings;
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2019-11-19 17:07:10 +00:00
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use crate::db::{establish_connection, ListingType, SortType, Crud};
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2019-11-16 02:17:42 +00:00
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use crate::db::community_view::SiteView;
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use crate::db::post_view::PostView;
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2019-11-19 17:07:10 +00:00
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use crate::db::user::User_;
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use crate::db::community::Community;
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use actix_web::{HttpResponse, web, Result};
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use actix_web::body::Body;
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use rss::{ChannelBuilder, Item, ItemBuilder};
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use diesel::result::Error;
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pub fn get_feed(info: web::Path<(char, String)>) -> HttpResponse<Body> {
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return match get_feed_internal(info) {
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Ok(body) => HttpResponse::Ok()
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.content_type("application/rss+xml")
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.body(body),
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// TODO: handle the specific type of error (403, 500, etc)
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Err(e) => HttpResponse::InternalServerError().finish(),
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}
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}
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2019-11-16 02:17:42 +00:00
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2019-11-19 17:07:10 +00:00
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fn get_feed_internal(info: web::Path<(char, String)>) -> Result<String, Error> {
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2019-11-16 02:17:42 +00:00
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let conn = establish_connection();
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2019-11-19 17:07:10 +00:00
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let mut community_id: Option<i32> = None;
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let mut creator_id: Option<i32> = None;
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// TODO: add a feed for /type/all
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match info.0 {
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'c' => community_id = Some(Community::read_from_name(&conn,info.1.clone())?.id),
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'u' => creator_id = Some(User_::find_by_email_or_username(&conn,&info.1)?.id),
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_ => return Err(Error::NotFound),
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}
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let post = PostView::list(&conn,
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2019-11-16 02:17:42 +00:00
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ListingType::All,
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&SortType::New,
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2019-11-19 17:07:10 +00:00
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community_id,
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creator_id,
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2019-11-16 02:17:42 +00:00
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None,
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None,
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None,
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true,
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false,
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false,
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None,
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2019-11-19 17:07:10 +00:00
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None,)?;
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2019-11-16 02:17:42 +00:00
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let mut items: Vec<Item> = Vec::new();
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for p in post {
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2019-11-19 17:07:10 +00:00
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// TODO: this may cause a lot of db queries
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let user = User_::read(&conn, p.creator_id)?;
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let dt = DateTime::<Utc>::from_utc(p.published, Utc);
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let mut i = ItemBuilder::default();
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i.title(htmlescape::encode_minimal(&p.name));
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i.author(htmlescape::encode_minimal(&user.name));
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i.pub_date(htmlescape::encode_minimal(&dt.to_rfc2822()));
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if p.url.is_some() {
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i.link(p.url.unwrap());
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}
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if p.body.is_some() {
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i.content(p.body.unwrap());
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}
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// TODO: any other fields?
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// https://rust-syndication.github.io/rss/rss/struct.ItemBuilder.html
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items.push(i.build().unwrap());
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2019-11-16 02:17:42 +00:00
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}
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2019-11-19 17:07:10 +00:00
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let site_view = SiteView::read(&conn)?;
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let mut channel_builder = ChannelBuilder::default();
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channel_builder.title(htmlescape::encode_minimal(&site_view.name))
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2019-11-16 02:17:42 +00:00
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.link(format!("https://{}", Settings::get().hostname))
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2019-11-19 17:07:10 +00:00
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.items(items);
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if site_view.description.is_some() {
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channel_builder.description(htmlescape::encode_minimal(&site_view.description.unwrap()));
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}
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// TODO: any other fields?
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// https://rust-syndication.github.io/rss/rss/struct.ChannelBuilder.html
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let channel = channel_builder.build().unwrap();
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2019-11-16 02:17:42 +00:00
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channel.write_to(::std::io::sink()).unwrap();
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2019-11-19 17:07:10 +00:00
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return Ok(channel.to_string());
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2019-11-16 02:17:42 +00:00
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}
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