redsunlib/src/search.rs
2021-09-09 17:28:55 -07:00

118 lines
3.2 KiB
Rust

// CRATES
use crate::utils::{catch_random, error, format_num, format_url, param, redirect, setting, template, val, Post, Preferences};
use crate::{
client::json,
subreddit::{can_access_quarantine, quarantine},
RequestExt,
};
use askama::Template;
use hyper::{Body, Request, Response};
// STRUCTS
struct SearchParams {
q: String,
sort: String,
t: String,
before: String,
after: String,
restrict_sr: String,
}
// STRUCTS
struct Subreddit {
name: String,
url: String,
icon: String,
description: String,
subscribers: (String, String),
}
#[derive(Template)]
#[template(path = "search.html", escape = "none")]
struct SearchTemplate {
posts: Vec<Post>,
subreddits: Vec<Subreddit>,
sub: String,
params: SearchParams,
prefs: Preferences,
url: String,
}
// SERVICES
pub async fn find(req: Request<Body>) -> Result<Response<Body>, String> {
let nsfw_results = if setting(&req, "show_nsfw") == "on" { "&include_over_18=on" } else { "" };
let path = format!("{}.json?{}{}", req.uri().path(), req.uri().query().unwrap_or_default(), nsfw_results);
let query = param(&path, "q").unwrap_or_default();
if query.is_empty() {
return Ok(redirect("/".to_string()));
}
let sub = req.param("sub").unwrap_or_default();
let quarantined = can_access_quarantine(&req, &sub);
// Handle random subreddits
if let Ok(random) = catch_random(&sub, "/find").await {
return Ok(random);
}
let sort = param(&path, "sort").unwrap_or_else(|| "relevance".to_string());
// If search is not restricted to this subreddit, show other subreddits in search results
let subreddits = param(&path, "restrict_sr").map_or(search_subreddits(&query).await, |_| Vec::new());
let url = String::from(req.uri().path_and_query().map_or("", |val| val.as_str()));
match Post::fetch(&path, String::new(), quarantined).await {
Ok((posts, after)) => template(SearchTemplate {
posts,
subreddits,
sub,
params: SearchParams {
q: query.replace('"', "&quot;"),
sort,
t: param(&path, "t").unwrap_or_default(),
before: param(&path, "after").unwrap_or_default(),
after,
restrict_sr: param(&path, "restrict_sr").unwrap_or_default(),
},
prefs: Preferences::new(req),
url,
}),
Err(msg) => {
if msg == "quarantined" {
let sub = req.param("sub").unwrap_or_default();
quarantine(req, sub)
} else {
error(req, msg).await
}
}
}
}
async fn search_subreddits(q: &str) -> Vec<Subreddit> {
let subreddit_search_path = format!("/subreddits/search.json?q={}&limit=3", q.replace(' ', "+"));
// Send a request to the url
json(subreddit_search_path, false).await.unwrap_or_default()["data"]["children"]
.as_array()
.map(ToOwned::to_owned)
.unwrap_or_default()
.iter()
.map(|subreddit| {
// For each subreddit from subreddit list
// Fetch subreddit icon either from the community_icon or icon_img value
let icon = subreddit["data"]["community_icon"]
.as_str()
.map_or_else(|| val(subreddit, "icon_img"), ToString::to_string);
Subreddit {
name: val(subreddit, "display_name_prefixed"),
url: val(subreddit, "url"),
icon: format_url(&icon),
description: val(subreddit, "public_description"),
subscribers: format_num(subreddit["data"]["subscribers"].as_f64().unwrap_or_default() as i64),
}
})
.collect::<Vec<Subreddit>>()
}