mirror of
https://github.com/LemmyNet/lemmy.git
synced 2024-06-01 08:38:05 +00:00
364 lines
9.6 KiB
Rust
364 lines
9.6 KiB
Rust
extern crate rss;
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use super::*;
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use crate::db::comment_view::{ReplyQueryBuilder, ReplyView};
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use crate::db::community::Community;
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use crate::db::post_view::{PostQueryBuilder, PostView};
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use crate::db::site_view::SiteView;
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use crate::db::user::User_;
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use crate::db::user_mention_view::{UserMentionQueryBuilder, UserMentionView};
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use crate::db::{establish_connection, ListingType, SortType};
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use crate::Settings;
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use actix_web::body::Body;
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use actix_web::{web, HttpResponse, Result};
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use failure::Error;
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use rss::{CategoryBuilder, ChannelBuilder, GuidBuilder, Item, ItemBuilder};
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use serde::Deserialize;
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use std::str::FromStr;
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use strum::ParseError;
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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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enum RequestType {
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Community,
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User,
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Front,
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Inbox,
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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 = match get_sort_type(info) {
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Ok(sort_type) => sort_type,
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Err(_) => return HttpResponse::BadRequest().finish(),
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};
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let feed_result = get_feed_all_data(&sort_type);
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match feed_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::NotFound().finish(),
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}
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}
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pub fn get_feed(path: web::Path<(String, String)>, info: web::Query<Params>) -> HttpResponse<Body> {
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let sort_type = match get_sort_type(info) {
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Ok(sort_type) => sort_type,
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Err(_) => return HttpResponse::BadRequest().finish(),
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};
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let request_type = match path.0.as_ref() {
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"u" => RequestType::User,
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"c" => RequestType::Community,
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"front" => RequestType::Front,
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"inbox" => RequestType::Inbox,
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_ => return HttpResponse::NotFound().finish(),
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};
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let param = path.1.to_owned();
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let feed_result = match request_type {
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RequestType::User => get_feed_user(&sort_type, param),
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RequestType::Community => get_feed_community(&sort_type, param),
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RequestType::Front => get_feed_front(&sort_type, param),
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RequestType::Inbox => get_feed_inbox(param),
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};
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match feed_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::NotFound().finish(),
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}
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}
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fn get_sort_type(info: web::Query<Params>) -> Result<SortType, ParseError> {
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let sort_query = info.sort.to_owned().unwrap_or(SortType::Hot.to_string());
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SortType::from_str(&sort_query)
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}
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fn get_feed_all_data(sort_type: &SortType) -> Result<String, Error> {
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let conn = establish_connection();
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let site_view = SiteView::read(&conn)?;
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let posts = PostQueryBuilder::create(&conn)
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.listing_type(ListingType::All)
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.sort(sort_type)
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.list()?;
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let items = create_post_items(posts);
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let mut channel_builder = ChannelBuilder::default();
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channel_builder
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.title(&format!("{} - All", site_view.name))
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.link(format!("https://{}", Settings::get().hostname))
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.items(items);
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if let Some(site_desc) = site_view.description {
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channel_builder.description(&site_desc);
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}
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Ok(channel_builder.build().unwrap().to_string())
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}
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fn get_feed_user(sort_type: &SortType, user_name: String) -> Result<String, Error> {
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let conn = establish_connection();
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let site_view = SiteView::read(&conn)?;
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let user = User_::find_by_email_or_username(&conn, &user_name)?;
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let user_url = format!("https://{}/u/{}", Settings::get().hostname, user.name);
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let posts = PostQueryBuilder::create(&conn)
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.listing_type(ListingType::All)
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.sort(sort_type)
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.for_creator_id(user.id)
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.list()?;
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let items = create_post_items(posts);
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let mut channel_builder = ChannelBuilder::default();
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channel_builder
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.title(&format!("{} - {}", site_view.name, user.name))
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.link(user_url)
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.items(items);
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Ok(channel_builder.build().unwrap().to_string())
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}
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fn get_feed_community(sort_type: &SortType, community_name: String) -> Result<String, Error> {
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let conn = establish_connection();
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let site_view = SiteView::read(&conn)?;
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let community = Community::read_from_name(&conn, community_name)?;
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let community_url = format!("https://{}/c/{}", Settings::get().hostname, community.name);
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let posts = PostQueryBuilder::create(&conn)
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.listing_type(ListingType::All)
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.sort(sort_type)
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.for_community_id(community.id)
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.list()?;
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let items = create_post_items(posts);
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let mut channel_builder = ChannelBuilder::default();
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channel_builder
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.title(&format!("{} - {}", site_view.name, community.name))
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.link(community_url)
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.items(items);
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if let Some(community_desc) = community.description {
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channel_builder.description(&community_desc);
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}
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Ok(channel_builder.build().unwrap().to_string())
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}
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fn get_feed_front(sort_type: &SortType, jwt: String) -> Result<String, Error> {
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let conn = establish_connection();
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let site_view = SiteView::read(&conn)?;
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let user_id = db::user::Claims::decode(&jwt)?.claims.id;
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let posts = PostQueryBuilder::create(&conn)
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.listing_type(ListingType::Subscribed)
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.sort(sort_type)
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.my_user_id(user_id)
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.list()?;
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let items = create_post_items(posts);
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let mut channel_builder = ChannelBuilder::default();
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channel_builder
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.title(&format!("{} - Subscribed", site_view.name))
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.link(format!("https://{}", Settings::get().hostname))
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.items(items);
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if let Some(site_desc) = site_view.description {
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channel_builder.description(&site_desc);
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}
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Ok(channel_builder.build().unwrap().to_string())
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}
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fn get_feed_inbox(jwt: String) -> Result<String, Error> {
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let conn = establish_connection();
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let site_view = SiteView::read(&conn)?;
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let user_id = db::user::Claims::decode(&jwt)?.claims.id;
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let sort = SortType::New;
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let replies = ReplyQueryBuilder::create(&conn, user_id)
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.sort(&sort)
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.list()?;
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let mentions = UserMentionQueryBuilder::create(&conn, user_id)
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.sort(&sort)
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.list()?;
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let items = create_reply_and_mention_items(replies, mentions);
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let mut channel_builder = ChannelBuilder::default();
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channel_builder
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.title(&format!("{} - Inbox", site_view.name))
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.link(format!("https://{}/inbox", Settings::get().hostname))
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.items(items);
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if let Some(site_desc) = site_view.description {
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channel_builder.description(&site_desc);
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}
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Ok(channel_builder.build().unwrap().to_string())
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}
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fn create_reply_and_mention_items(
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replies: Vec<ReplyView>,
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mentions: Vec<UserMentionView>,
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) -> Vec<Item> {
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let mut items: Vec<Item> = Vec::new();
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for r in replies {
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let mut i = ItemBuilder::default();
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i.title(format!("Reply from {}", r.creator_name));
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let author_url = format!("https://{}/u/{}", Settings::get().hostname, r.creator_name);
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i.author(format!(
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"/u/{} <a href=\"{}\">(link)</a>",
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r.creator_name, author_url
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));
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let dt = DateTime::<Utc>::from_utc(r.published, Utc);
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i.pub_date(dt.to_rfc2822());
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let reply_url = format!(
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"https://{}/post/{}/comment/{}",
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Settings::get().hostname,
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r.post_id,
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r.id
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);
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i.comments(reply_url.to_owned());
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let guid = GuidBuilder::default()
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.permalink(true)
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.value(&reply_url)
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.build();
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i.guid(guid.unwrap());
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i.link(reply_url);
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// TODO find a markdown to html parser here, do images, etc
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i.description(r.content);
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items.push(i.build().unwrap());
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}
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for m in mentions {
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let mut i = ItemBuilder::default();
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i.title(format!("Mention from {}", m.creator_name));
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let author_url = format!("https://{}/u/{}", Settings::get().hostname, m.creator_name);
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i.author(format!(
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"/u/{} <a href=\"{}\">(link)</a>",
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m.creator_name, author_url
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));
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let dt = DateTime::<Utc>::from_utc(m.published, Utc);
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i.pub_date(dt.to_rfc2822());
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let mention_url = format!(
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"https://{}/post/{}/comment/{}",
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Settings::get().hostname,
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m.post_id,
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m.id
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);
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i.comments(mention_url.to_owned());
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let guid = GuidBuilder::default()
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.permalink(true)
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.value(&mention_url)
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.build();
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i.guid(guid.unwrap());
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i.link(mention_url);
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// TODO find a markdown to html parser here, do images, etc
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i.description(m.content);
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items.push(i.build().unwrap());
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}
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items
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}
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fn create_post_items(posts: Vec<PostView>) -> Vec<Item> {
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let mut items: Vec<Item> = Vec::new();
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for p in posts {
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let mut i = ItemBuilder::default();
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i.title(p.name);
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let author_url = format!("https://{}/u/{}", Settings::get().hostname, p.creator_name);
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i.author(format!(
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"/u/{} <a href=\"{}\">(link)</a>",
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p.creator_name, author_url
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));
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let dt = DateTime::<Utc>::from_utc(p.published, Utc);
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i.pub_date(dt.to_rfc2822());
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let post_url = format!("https://{}/post/{}", Settings::get().hostname, p.id);
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i.comments(post_url.to_owned());
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let guid = GuidBuilder::default()
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.permalink(true)
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.value(&post_url)
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.build();
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i.guid(guid.unwrap());
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let community_url = format!(
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"https://{}/c/{}",
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Settings::get().hostname,
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p.community_name
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);
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let category = CategoryBuilder::default()
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.name(format!(
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"/c/{} <a href=\"{}\">(link)</a>",
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p.community_name, community_url
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))
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.domain(Settings::get().hostname.to_owned())
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.build();
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i.categories(vec![category.unwrap()]);
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if let Some(url) = p.url {
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i.link(url);
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}
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// TODO find a markdown to html parser here, do images, etc
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let mut description = format!("
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submitted by <a href=\"{}\">{}</a> to <a href=\"{}\">{}</a><br>{} points | <a href=\"{}\">{} comments</a>",
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author_url,
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p.creator_name,
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community_url,
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p.community_name,
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p.score,
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post_url,
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p.number_of_comments);
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if let Some(body) = p.body {
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description.push_str(&format!("<br><br>{}", body));
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}
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i.description(description);
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items.push(i.build().unwrap());
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}
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items
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}
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