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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2019-11-23 20:36:48 +00:00
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use crate::db::{establish_connection, ListingType, SortType};
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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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2019-12-01 18:09:10 +00:00
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use actix_web::{HttpResponse, web, Result};
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2019-11-19 17:07:10 +00:00
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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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2019-11-23 20:36:48 +00:00
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use std::str::FromStr;
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use self::rss::Guid;
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2019-12-01 18:09:10 +00:00
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use serde::Deserialize;
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2019-12-01 19:01:38 +00:00
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use strum::ParseError;
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2019-11-19 17:07:10 +00:00
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2019-12-01 18:09:10 +00:00
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#[derive(Deserialize)]
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pub struct Params {
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sort: Option<String>,
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}
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2019-12-01 19:01:38 +00:00
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enum RequestType {
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All,
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Community,
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User,
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}
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pub fn get_all_feed(info: web::Query<Params>) -> HttpResponse<Body> {
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let sort_type = get_sort_type(info);
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if sort_type.is_err() {
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return HttpResponse::BadRequest().finish();
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}
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let result = get_feed_internal(&sort_type.unwrap(), RequestType::All, None);
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return match result {
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Ok(rss) => HttpResponse::Ok()
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.content_type("application/rss+xml")
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.body(rss),
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Err(_) => HttpResponse::InternalServerError().finish(),
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};
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}
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2019-12-01 18:09:10 +00:00
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pub fn get_feed(path: web::Path<(char, String)>, info: web::Query<Params>) -> HttpResponse<Body> {
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2019-12-01 19:01:38 +00:00
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let sort_type = get_sort_type(info);
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if sort_type.is_err() {
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return HttpResponse::BadRequest().finish();
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}
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let request_type = match path.0 {
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'u' => RequestType::User,
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'c' => RequestType::Community,
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_ => return HttpResponse::NotFound().finish(),
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2019-11-23 20:36:48 +00:00
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};
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2019-12-01 19:01:38 +00:00
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let result = get_feed_internal(&sort_type.unwrap(), request_type, Some(path.1.clone()));
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2019-12-01 18:09:10 +00:00
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if result.is_ok() {
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let rss = result.unwrap();
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return HttpResponse::Ok()
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2019-11-19 17:07:10 +00:00
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.content_type("application/rss+xml")
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2019-12-01 18:09:10 +00:00
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.body(rss);
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} else {
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let error = result.err().unwrap();
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return match error {
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Error::NotFound => HttpResponse::NotFound().finish(),
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_ => HttpResponse::InternalServerError().finish(),
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}
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2019-11-19 17:07:10 +00:00
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}
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}
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2019-11-16 02:17:42 +00:00
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2019-12-01 19:01:38 +00:00
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fn get_sort_type(info: web::Query<Params>) -> Result<SortType, ParseError> {
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let sort_query = info.sort.clone().unwrap_or(SortType::Hot.to_string());
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return SortType::from_str(&sort_query);
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}
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fn get_feed_internal(sort_type: &SortType, request_type: RequestType, name: Option<String>)
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-> 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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2019-12-01 19:01:38 +00:00
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match request_type {
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RequestType::All =>(),
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RequestType::Community => community_id = Some(Community::read_from_name(&conn,name.unwrap())?.id),
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RequestType::User => creator_id = Some(User_::find_by_email_or_username(&conn,&name.unwrap())?.id),
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2019-11-19 17:07:10 +00:00
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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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2019-11-23 20:36:48 +00:00
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sort_type,
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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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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.pub_date(htmlescape::encode_minimal(&dt.to_rfc2822()));
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2019-11-23 20:36:48 +00:00
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let post_url = format!("https://{}/post/{}", Settings::get().hostname, p.id);
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let mut guid = Guid::default();
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guid.set_permalink(true);
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guid.set_value(&post_url);
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i.guid(guid);
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i.comments(post_url);
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2019-11-19 17:07:10 +00:00
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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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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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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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