redsunlib/src/search.rs

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// CRATES
use crate::utils::{catch_random, error, format_num, format_url, param, setting, template, val, Post, Preferences};
use crate::{
client::json,
subreddit::{can_access_quarantine, quarantine},
RequestExt,
};
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use askama::Template;
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use hyper::{Body, Request, Response};
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// STRUCTS
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struct SearchParams {
q: String,
sort: String,
t: String,
before: String,
after: String,
restrict_sr: String,
}
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// STRUCTS
struct Subreddit {
name: String,
url: String,
icon: String,
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description: String,
subscribers: (String, String),
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}
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#[derive(Template)]
#[template(path = "search.html", escape = "none")]
struct SearchTemplate {
posts: Vec<Post>,
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subreddits: Vec<Subreddit>,
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sub: String,
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params: SearchParams,
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prefs: Preferences,
url: String,
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}
// SERVICES
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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 { "" };
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let path = format!("{}.json?{}{}", req.uri().path(), req.uri().query().unwrap_or_default(), nsfw_results);
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 query = param(&path, "q").unwrap_or_default();
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let sort = param(&path, "sort").unwrap_or_else(|| "relevance".to_string());
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let subreddits = match param(&path, "restrict_sr") {
None => search_subreddits(&query).await,
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Some(_) => Vec::new(),
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};
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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 {
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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(),
},
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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
}
}
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}
}
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async fn search_subreddits(q: &str) -> Vec<Subreddit> {
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let subreddit_search_path = format!("/subreddits/search.json?q={}&limit=3", q.replace(' ', "+"));
// Send a request to the url
match json(subreddit_search_path, false).await {
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// If success, receive JSON in response
Ok(response) => {
match response["data"]["children"].as_array() {
// For each subreddit from subreddit list
Some(list) => list
.iter()
.map(|subreddit| {
// Fetch subreddit icon either from the community_icon or icon_img value
let community_icon: &str = subreddit["data"]["community_icon"].as_str().map_or("", |s| s.split('?').collect::<Vec<&str>>()[0]);
let icon = if community_icon.is_empty() {
val(&subreddit, "icon_img")
} else {
community_icon.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),
}
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})
.collect::<Vec<Subreddit>>(),
_ => Vec::new(),
}
}
// If the Reddit API returns an error, exit this function
_ => Vec::new(),
}
}