Optimizations and commenting

pull/223/head v0.14.4
spikecodes 2 years ago
parent ba42fc066f
commit 4defb58f2a
No known key found for this signature in database
GPG Key ID: 004CECFF9B463BCB
  1. 6
      Cargo.lock
  2. 2
      Cargo.toml
  3. 10
      src/client.rs
  4. 11
      src/main.rs
  5. 136
      src/post.rs
  6. 54
      src/search.rs
  7. 51
      src/server.rs
  8. 40
      src/settings.rs
  9. 73
      src/subreddit.rs
  10. 35
      src/user.rs
  11. 112
      src/utils.rs

6
Cargo.lock generated

@ -609,7 +609,7 @@ checksum = "18794a8ad5b29321f790b55d93dfba91e125cb1a9edbd4f8e3150acc771c1a5e"
[[package]]
name = "libreddit"
version = "0.14.3"
version = "0.14.4"
dependencies = [
"askama",
"async-recursion",
@ -807,9 +807,9 @@ checksum = "bc881b2c22681370c6a780e47af9840ef841837bc98118431d4e1868bd0c1086"
[[package]]
name = "proc-macro2"
version = "1.0.26"
version = "1.0.27"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a152013215dca273577e18d2bf00fa862b89b24169fb78c4c95aeb07992c9cec"
checksum = "f0d8caf72986c1a598726adc988bb5984792ef84f5ee5aa50209145ee8077038"
dependencies = [
"unicode-xid",
]

@ -3,7 +3,7 @@ name = "libreddit"
description = " Alternative private front-end to Reddit"
license = "AGPL-3.0"
repository = "https://github.com/spikecodes/libreddit"
version = "0.14.3"
version = "0.14.4"
authors = ["spikecodes <19519553+spikecodes@users.noreply.github.com>"]
edition = "2018"

@ -9,7 +9,9 @@ use crate::server::RequestExt;
pub async fn proxy(req: Request<Body>, format: &str) -> Result<Response<Body>, String> {
let mut url = format!("{}?{}", format, req.uri().query().unwrap_or_default());
// For each parameter in request
for (name, value) in req.params().iter() {
// Fill the parameter value in the url
url = url.replace(&format!("{{{}}}", name), value);
}
@ -29,14 +31,13 @@ async fn stream(url: &str, req: &Request<Body>) -> Result<Response<Body>, String
let mut builder = Request::get(url);
// Copy useful headers from original request
let headers = req.headers();
for &key in &["Range", "If-Modified-Since", "Cache-Control"] {
if let Some(value) = headers.get(key) {
if let Some(value) = req.headers().get(key) {
builder = builder.header(key, value);
}
}
let stream_request = builder.body(Body::default()).expect("stream");
let stream_request = builder.body(Body::empty()).map_err(|_| "Couldn't build empty body in stream".to_string())?;
client
.request(stream_request)
@ -64,9 +65,10 @@ fn request(url: String, quarantine: bool) -> Boxed<Result<Response<Body>, String
// Prepare the HTTPS connector.
let https = hyper_rustls::HttpsConnector::with_native_roots();
// Build the hyper client from the HTTPS connector.
// Construct the hyper client from the HTTPS connector.
let client: client::Client<_, hyper::Body> = client::Client::builder().build(https);
// Build request
let builder = Request::builder()
.method("GET")
.uri(&url)

@ -1,14 +1,7 @@
// Global specifiers
#![forbid(unsafe_code)]
#![warn(clippy::pedantic, clippy::all)]
#![allow(
clippy::needless_pass_by_value,
clippy::match_wildcard_for_single_variants,
clippy::cast_possible_truncation,
clippy::similar_names,
clippy::cast_possible_wrap,
clippy::find_map
)]
#![allow(clippy::needless_pass_by_value, clippy::cast_possible_truncation, clippy::cast_possible_wrap, clippy::find_map)]
// Reference local files
mod post;
@ -137,7 +130,7 @@ async fn main() {
let port = matches.value_of("port").unwrap_or("8080");
let hsts = matches.value_of("hsts");
let listener = format!("{}:{}", address, port);
let listener = [address, ":", port].concat();
println!("Starting Libreddit...");

@ -7,8 +7,6 @@ use crate::utils::{error, format_num, format_url, param, rewrite_urls, setting,
use hyper::{Body, Request, Response};
use async_recursion::async_recursion;
use askama::Template;
// STRUCTS
@ -52,10 +50,10 @@ pub async fn item(req: Request<Body>) -> Result<Response<Body>, String> {
// Send a request to the url, receive JSON in response
match json(path, quarantined).await {
// Otherwise, grab the JSON output from the request
Ok(res) => {
Ok(response) => {
// Parse the JSON into Post and Comment structs
let post = parse_post(&res[0]).await;
let comments = parse_comments(&res[1], &post.permalink, &post.author.name, highlighted_comment).await;
let post = parse_post(&response[0]).await;
let comments = parse_comments(&response[1], &post.permalink, &post.author.name, highlighted_comment);
// Use the Post and Comment structs to generate a website to show users
template(PostTemplate {
@ -151,79 +149,71 @@ async fn parse_post(json: &serde_json::Value) -> Post {
}
// COMMENTS
#[async_recursion]
async fn parse_comments(json: &serde_json::Value, post_link: &str, post_author: &str, highlighted_comment: &str) -> Vec<Comment> {
// Separate the comment JSON into a Vector of comments
let comment_data = match json["data"]["children"].as_array() {
Some(f) => f.to_owned(),
None => Vec::new(),
};
let mut comments: Vec<Comment> = Vec::new();
fn parse_comments(json: &serde_json::Value, post_link: &str, post_author: &str, highlighted_comment: &str) -> Vec<Comment> {
// Parse the comment JSON into a Vector of Comments
let comments = json["data"]["children"].as_array().map_or(Vec::new(), std::borrow::ToOwned::to_owned);
// For each comment, retrieve the values to build a Comment object
for comment in comment_data {
let kind = comment["kind"].as_str().unwrap_or_default().to_string();
let data = &comment["data"];
comments
.into_iter()
.map(|comment| {
let kind = comment["kind"].as_str().unwrap_or_default().to_string();
let data = &comment["data"];
let unix_time = data["created_utc"].as_f64().unwrap_or_default();
let (rel_time, created) = time(unix_time);
let unix_time = data["created_utc"].as_f64().unwrap_or_default();
let (rel_time, created) = time(unix_time);
let edited = match data["edited"].as_f64() {
Some(stamp) => time(stamp),
None => (String::new(), String::new()),
};
let edited = data["edited"].as_f64().map_or((String::new(), String::new()), time);
let score = data["score"].as_i64().unwrap_or(0);
let body = rewrite_urls(&val(&comment, "body_html"));
let score = data["score"].as_i64().unwrap_or(0);
let body = rewrite_urls(&val(&comment, "body_html"));
// If this comment contains replies, handle those too
let replies: Vec<Comment> = if data["replies"].is_object() {
parse_comments(&data["replies"], post_link, post_author, highlighted_comment).await
} else {
Vec::new()
};
let parent_kind_and_id = val(&comment, "parent_id");
let parent_info = parent_kind_and_id.split('_').collect::<Vec<&str>>();
let id = val(&comment, "id");
let highlighted = id == highlighted_comment;
comments.push(Comment {
id,
kind,
parent_id: parent_info[1].to_string(),
parent_kind: parent_info[0].to_string(),
post_link: post_link.to_string(),
post_author: post_author.to_string(),
body,
author: Author {
name: val(&comment, "author"),
flair: Flair {
flair_parts: FlairPart::parse(
data["author_flair_type"].as_str().unwrap_or_default(),
data["author_flair_richtext"].as_array(),
data["author_flair_text"].as_str(),
),
text: esc!(&comment, "link_flair_text"),
background_color: val(&comment, "author_flair_background_color"),
foreground_color: val(&comment, "author_flair_text_color"),
},
distinguished: val(&comment, "distinguished"),
},
score: if data["score_hidden"].as_bool().unwrap_or_default() {
("\u{2022}".to_string(), "Hidden".to_string())
// If this comment contains replies, handle those too
let replies: Vec<Comment> = if data["replies"].is_object() {
parse_comments(&data["replies"], post_link, post_author, highlighted_comment)
} else {
format_num(score)
},
rel_time,
created,
edited,
replies,
highlighted,
});
}
comments
Vec::new()
};
let parent_kind_and_id = val(&comment, "parent_id");
let parent_info = parent_kind_and_id.split('_').collect::<Vec<&str>>();
let id = val(&comment, "id");
let highlighted = id == highlighted_comment;
Comment {
id,
kind,
parent_id: parent_info[1].to_string(),
parent_kind: parent_info[0].to_string(),
post_link: post_link.to_string(),
post_author: post_author.to_string(),
body,
author: Author {
name: val(&comment, "author"),
flair: Flair {
flair_parts: FlairPart::parse(
data["author_flair_type"].as_str().unwrap_or_default(),
data["author_flair_richtext"].as_array(),
data["author_flair_text"].as_str(),
),
text: esc!(&comment, "link_flair_text"),
background_color: val(&comment, "author_flair_background_color"),
foreground_color: val(&comment, "author_flair_text_color"),
},
distinguished: val(&comment, "distinguished"),
},
score: if data["score_hidden"].as_bool().unwrap_or_default() {
("\u{2022}".to_string(), "Hidden".to_string())
} else {
format_num(score)
},
rel_time,
created,
edited,
replies,
highlighted,
}
})
.collect()
}

@ -52,10 +52,8 @@ pub async fn find(req: Request<Body>) -> Result<Response<Body>, String> {
let sort = param(&path, "sort").unwrap_or_else(|| "relevance".to_string());
let subreddits = match param(&path, "restrict_sr") {
None => search_subreddits(&query).await,
Some(_) => Vec::new(),
};
// 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()));
@ -90,35 +88,25 @@ 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
match json(subreddit_search_path, false).await {
// 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()
};
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>>(),
_ => Vec::new(),
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),
}
}
// If the Reddit API returns an error, exit this function
_ => Vec::new(),
}
})
.collect::<Vec<Subreddit>>()
}

@ -69,29 +69,31 @@ impl RequestExt for Request<Body> {
}
fn cookies(&self) -> Vec<Cookie> {
let mut cookies = Vec::new();
if let Some(header) = self.headers().get("Cookie") {
for cookie in header.to_str().unwrap_or_default().split("; ") {
cookies.push(Cookie::parse(cookie).unwrap_or_else(|_| Cookie::named("")));
}
}
cookies
self.headers().get("Cookie").map_or(Vec::new(), |header| {
header
.to_str()
.unwrap_or_default()
.split("; ")
.map(|cookie| Cookie::parse(cookie).unwrap_or_else(|_| Cookie::named("")))
.collect()
})
}
fn cookie(&self, name: &str) -> Option<Cookie> {
self.cookies().iter().find(|c| c.name() == name).map(std::borrow::ToOwned::to_owned)
self.cookies().into_iter().find(|c| c.name() == name)
}
}
impl ResponseExt for Response<Body> {
fn cookies(&self) -> Vec<Cookie> {
let mut cookies = Vec::new();
for header in self.headers().get_all("Cookie") {
if let Ok(cookie) = Cookie::parse(header.to_str().unwrap_or_default()) {
cookies.push(cookie);
}
}
cookies
self.headers().get("Cookie").map_or(Vec::new(), |header| {
header
.to_str()
.unwrap_or_default()
.split("; ")
.map(|cookie| Cookie::parse(cookie).unwrap_or_else(|_| Cookie::named("")))
.collect()
})
}
fn insert_cookie(&mut self, cookie: Cookie) {
@ -144,6 +146,7 @@ impl Server {
pub fn listen(self, addr: String) -> Boxed<Result<(), hyper::Error>> {
let make_svc = make_service_fn(move |_conn| {
// For correct borrowing, these values need to be borrowed
let router = self.router.clone();
let default_headers = self.default_headers.clone();
@ -159,7 +162,7 @@ impl Server {
let mut path = req.uri().path().replace("//", "/");
// Remove trailing slashes
if path.ends_with('/') && path != "/" {
if path != "/" && path.ends_with('/') {
path.pop();
}
@ -198,17 +201,15 @@ impl Server {
}
});
// Build SocketAddr from provided address
let address = &addr.parse().unwrap_or_else(|_| panic!("Cannot parse {} as address (example format: 0.0.0.0:8080)", addr));
let server = HyperServer::bind(address).serve(make_svc);
let graceful = server.with_graceful_shutdown(shutdown_signal());
// Bind server to address specified above. Gracefully shut down if CTRL+C is pressed
let server = HyperServer::bind(address).serve(make_svc).with_graceful_shutdown(async {
// Wait for the CTRL+C signal
tokio::signal::ctrl_c().await.expect("Failed to install CTRL+C signal handler")
});
graceful.boxed()
server.boxed()
}
}
async fn shutdown_signal() {
// Wait for the CTRL+C signal
tokio::signal::ctrl_c().await.expect("Failed to install CTRL+C signal handler");
}

@ -43,12 +43,12 @@ pub async fn set(req: Request<Body>) -> Result<Response<Body>, String> {
let (parts, mut body) = req.into_parts();
// Grab existing cookies
let mut cookies = Vec::new();
for header in parts.headers.get_all("Cookie") {
if let Ok(cookie) = Cookie::parse(header.to_str().unwrap_or_default()) {
cookies.push(cookie);
}
}
let _cookies: Vec<Cookie> = parts
.headers
.get_all("Cookie")
.iter()
.filter_map(|header| Cookie::parse(header.to_str().unwrap_or_default()).ok())
.collect();
// Aggregate the body...
// let whole_body = hyper::body::aggregate(req).await.map_err(|e| e.to_string())?;
@ -62,22 +62,22 @@ pub async fn set(req: Request<Body>) -> Result<Response<Body>, String> {
let form = url::form_urlencoded::parse(&body_bytes).collect::<HashMap<_, _>>();
let mut res = redirect("/settings".to_string());
let mut response = redirect("/settings".to_string());
for &name in &PREFS {
match form.get(name) {
Some(value) => res.insert_cookie(
Some(value) => response.insert_cookie(
Cookie::build(name.to_owned(), value.to_owned())
.path("/")
.http_only(true)
.expires(OffsetDateTime::now_utc() + Duration::weeks(52))
.finish(),
),
None => res.remove_cookie(name.to_string()),
None => response.remove_cookie(name.to_string()),
};
}
Ok(res)
Ok(response)
}
fn set_cookies_method(req: Request<Body>, remove_cookies: bool) -> Response<Body> {
@ -85,12 +85,12 @@ fn set_cookies_method(req: Request<Body>, remove_cookies: bool) -> Response<Body
let (parts, _) = req.into_parts();
// Grab existing cookies
let mut cookies = Vec::new();
for header in parts.headers.get_all("Cookie") {
if let Ok(cookie) = Cookie::parse(header.to_str().unwrap_or_default()) {
cookies.push(cookie);
}
}
let _cookies: Vec<Cookie> = parts
.headers
.get_all("Cookie")
.iter()
.filter_map(|header| Cookie::parse(header.to_str().unwrap_or_default()).ok())
.collect();
let query = parts.uri.query().unwrap_or_default().as_bytes();
@ -101,11 +101,11 @@ fn set_cookies_method(req: Request<Body>, remove_cookies: bool) -> Response<Body
None => "/".to_string(),
};
let mut res = redirect(path);
let mut response = redirect(path);
for name in [PREFS.to_vec(), vec!["subscriptions"]].concat() {
match form.get(name) {
Some(value) => res.insert_cookie(
Some(value) => response.insert_cookie(
Cookie::build(name.to_owned(), value.to_owned())
.path("/")
.http_only(true)
@ -114,13 +114,13 @@ fn set_cookies_method(req: Request<Body>, remove_cookies: bool) -> Response<Body
),
None => {
if remove_cookies {
res.remove_cookie(name.to_string())
response.remove_cookie(name.to_string())
}
}
};
}
res
response
}
// Set cookies using response "Set-Cookie" header

@ -133,15 +133,15 @@ pub fn quarantine(req: Request<Body>, sub: String) -> Result<Response<Body>, Str
pub async fn add_quarantine_exception(req: Request<Body>) -> Result<Response<Body>, String> {
let subreddit = req.param("sub").ok_or("Invalid URL")?;
let redir = param(&format!("?{}", req.uri().query().unwrap_or_default()), "redir").ok_or("Invalid URL")?;
let mut res = redirect(redir);
res.insert_cookie(
let mut response = redirect(redir);
response.insert_cookie(
Cookie::build(&format!("allow_quaran_{}", subreddit.to_lowercase()), "true")
.path("/")
.http_only(true)
.expires(cookie::Expiration::Session)
.finish(),
);
Ok(res)
Ok(response)
}
pub fn can_access_quarantine(req: &Request<Body>, sub: &str) -> bool {
@ -211,13 +211,13 @@ pub async fn subscriptions(req: Request<Body>) -> Result<Response<Body>, String>
format!("/r/{}", sub)
};
let mut res = redirect(path);
let mut response = redirect(path);
// Delete cookie if empty, else set
if sub_list.is_empty() {
res.remove_cookie("subscriptions".to_string());
response.remove_cookie("subscriptions".to_string());
} else {
res.insert_cookie(
response.insert_cookie(
Cookie::build("subscriptions", sub_list.join("+"))
.path("/")
.http_only(true)
@ -226,7 +226,7 @@ pub async fn subscriptions(req: Request<Body>) -> Result<Response<Body>, String>
);
}
Ok(res)
Ok(response)
}
pub async fn wiki(req: Request<Body>) -> Result<Response<Body>, String> {
@ -260,6 +260,7 @@ pub async fn wiki(req: Request<Body>) -> Result<Response<Body>, String> {
pub async fn sidebar(req: Request<Body>) -> Result<Response<Body>, String> {
let sub = req.param("sub").unwrap_or_else(|| "reddit.com".to_string());
let quarantined = can_access_quarantine(&req, &sub);
// Handle random subreddits
if let Ok(random) = catch_random(&sub, "/about/sidebar").await {
return Ok(random);
@ -307,10 +308,9 @@ async fn moderators_list(sub: &str, quarantined: bool) -> Result<Vec<String>, St
let path: String = format!("/r/{}/about/moderators.json?raw_json=1", sub);
// Retrieve response
let response = json(path, quarantined).await?["data"]["children"].clone();
Ok(
json(path, quarantined).await.map(|response| {
// Traverse json tree and format into list of strings
response
response["data"]["children"]
.as_array()
.unwrap_or(&Vec::new())
.iter()
@ -322,8 +322,8 @@ async fn moderators_list(sub: &str, quarantined: bool) -> Result<Vec<String>, St
Some(name.to_string())
}
})
.collect::<Vec<_>>(),
)
.collect::<Vec<_>>()
})
}
// SUBREDDIT
@ -332,32 +332,25 @@ async fn subreddit(sub: &str, quarantined: bool) -> Result<Subreddit, String> {
let path: String = format!("/r/{}/about.json?raw_json=1", sub);
// Send a request to the url
match json(path, quarantined).await {
// If success, receive JSON in response
Ok(res) => {
// Metadata regarding the subreddit
let members: i64 = res["data"]["subscribers"].as_u64().unwrap_or_default() as i64;
let active: i64 = res["data"]["accounts_active"].as_u64().unwrap_or_default() as i64;
// Fetch subreddit icon either from the community_icon or icon_img value
let community_icon: &str = res["data"]["community_icon"].as_str().unwrap_or_default();
let icon = if community_icon.is_empty() { val(&res, "icon_img") } else { community_icon.to_string() };
let sub = Subreddit {
name: esc!(&res, "display_name"),
title: esc!(&res, "title"),
description: esc!(&res, "public_description"),
info: rewrite_urls(&val(&res, "description_html").replace("\\", "")),
moderators: moderators_list(sub, quarantined).await?,
icon: format_url(&icon),
members: format_num(members),
active: format_num(active),
wiki: res["data"]["wiki_enabled"].as_bool().unwrap_or_default(),
};
Ok(sub)
}
// If the Reddit API returns an error, exit this function
Err(msg) => return Err(msg),
}
let res = json(path, quarantined).await?;
// Metadata regarding the subreddit
let members: i64 = res["data"]["subscribers"].as_u64().unwrap_or_default() as i64;
let active: i64 = res["data"]["accounts_active"].as_u64().unwrap_or_default() as i64;
// Fetch subreddit icon either from the community_icon or icon_img value
let community_icon: &str = res["data"]["community_icon"].as_str().unwrap_or_default();
let icon = if community_icon.is_empty() { val(&res, "icon_img") } else { community_icon.to_string() };
Ok(Subreddit {
name: esc!(&res, "display_name"),
title: esc!(&res, "title"),
description: esc!(&res, "public_description"),
info: rewrite_urls(&val(&res, "description_html").replace("\\", "")),
moderators: moderators_list(sub, quarantined).await?,
icon: format_url(&icon),
members: format_num(members),
active: format_num(active),
wiki: res["data"]["wiki_enabled"].as_bool().unwrap_or_default(),
})
}

@ -61,27 +61,22 @@ async fn user(name: &str) -> Result<User, String> {
let path: String = format!("/user/{}/about.json?raw_json=1", name);
// Send a request to the url
match json(path, false).await {
// If success, receive JSON in response
Ok(res) => {
// Grab creation date as unix timestamp
let created: i64 = res["data"]["created"].as_f64().unwrap_or(0.0).round() as i64;
json(path, false).await.map(|res| {
// Grab creation date as unix timestamp
let created: i64 = res["data"]["created"].as_f64().unwrap_or(0.0).round() as i64;
// Closure used to parse JSON from Reddit APIs
let about = |item| res["data"]["subreddit"][item].as_str().unwrap_or_default().to_string();
// Closure used to parse JSON from Reddit APIs
let about = |item| res["data"]["subreddit"][item].as_str().unwrap_or_default().to_string();
// Parse the JSON output into a User struct
Ok(User {
name: name.to_string(),
title: esc!(about("title")),
icon: format_url(&about("icon_img")),
karma: res["data"]["total_karma"].as_i64().unwrap_or(0),
created: OffsetDateTime::from_unix_timestamp(created).format("%b %d '%y"),
banner: esc!(about("banner_img")),
description: about("public_description"),
})
// Parse the JSON output into a User struct
User {
name: name.to_string(),
title: esc!(about("title")),
icon: format_url(&about("icon_img")),
karma: res["data"]["total_karma"].as_i64().unwrap_or(0),
created: OffsetDateTime::from_unix_timestamp(created).format("%b %d '%y"),
banner: esc!(about("banner_img")),
description: about("public_description"),
}
// If the Reddit API returns an error, exit this function
Err(msg) => return Err(msg),
}
})
}

@ -463,83 +463,71 @@ pub fn format_url(url: &str) -> String {
if url.is_empty() || url == "self" || url == "default" || url == "nsfw" || url == "spoiler" {
String::new()
} else {
match Url::parse(url) {
Ok(parsed) => {
let domain = parsed.domain().unwrap_or_default();
let capture = |regex: &str, format: &str, segments: i16| {
Regex::new(regex)
.map(|re| match re.captures(url) {
Some(caps) => match segments {
1 => [format, &caps[1]].join(""),
2 => [format, &caps[1], "/", &caps[2]].join(""),
_ => String::new(),
},
None => String::new(),
})
.unwrap_or_default()
Url::parse(url).map_or(String::new(), |parsed| {
let domain = parsed.domain().unwrap_or_default();
let capture = |regex: &str, format: &str, segments: i16| {
Regex::new(regex).map_or(String::new(), |re| {
re.captures(url).map_or(String::new(), |caps| match segments {
1 => [format, &caps[1]].join(""),
2 => [format, &caps[1], "/", &caps[2]].join(""),
_ => String::new(),
})
})
};
macro_rules! chain {
() => {
{
String::new()
}
};
macro_rules! chain {
() => {
{
String::new()
( $first_fn:expr, $($other_fns:expr), *) => {
{
let result = $first_fn;
if result.is_empty() {
chain!($($other_fns,)*)
}
};
( $first_fn:expr, $($other_fns:expr), *) => {
else
{
let result = $first_fn;
if result.is_empty() {
chain!($($other_fns,)*)
}
else
{
result
}
result
}
};
}
}
};
}
match domain {
"v.redd.it" => chain!(
capture(r"https://v\.redd\.it/(.*)/DASH_([0-9]{2,4}(\.mp4|$))", "/vid/", 2),
capture(r"https://v\.redd\.it/(.+)/(HLSPlaylist\.m3u8.*)$", "/hls/", 2)
),
"i.redd.it" => capture(r"https://i\.redd\.it/(.*)", "/img/", 1),
"a.thumbs.redditmedia.com" => capture(r"https://a\.thumbs\.redditmedia\.com/(.*)", "/thumb/a/", 1),
"b.thumbs.redditmedia.com" => capture(r"https://b\.thumbs\.redditmedia\.com/(.*)", "/thumb/b/", 1),
"emoji.redditmedia.com" => capture(r"https://emoji\.redditmedia\.com/(.*)/(.*)", "/emoji/", 2),
"preview.redd.it" => capture(r"https://preview\.redd\.it/(.*)", "/preview/pre/", 1),
"external-preview.redd.it" => capture(r"https://external\-preview\.redd\.it/(.*)", "/preview/external-pre/", 1),
"styles.redditmedia.com" => capture(r"https://styles\.redditmedia\.com/(.*)", "/style/", 1),
"www.redditstatic.com" => capture(r"https://www\.redditstatic\.com/(.*)", "/static/", 1),
_ => String::new(),
}
match domain {
"v.redd.it" => chain!(
capture(r"https://v\.redd\.it/(.*)/DASH_([0-9]{2,4}(\.mp4|$))", "/vid/", 2),
capture(r"https://v\.redd\.it/(.+)/(HLSPlaylist\.m3u8.*)$", "/hls/", 2)
),
"i.redd.it" => capture(r"https://i\.redd\.it/(.*)", "/img/", 1),
"a.thumbs.redditmedia.com" => capture(r"https://a\.thumbs\.redditmedia\.com/(.*)", "/thumb/a/", 1),
"b.thumbs.redditmedia.com" => capture(r"https://b\.thumbs\.redditmedia\.com/(.*)", "/thumb/b/", 1),
"emoji.redditmedia.com" => capture(r"https://emoji\.redditmedia\.com/(.*)/(.*)", "/emoji/", 2),
"preview.redd.it" => capture(r"https://preview\.redd\.it/(.*)", "/preview/pre/", 1),
"external-preview.redd.it" => capture(r"https://external\-preview\.redd\.it/(.*)", "/preview/external-pre/", 1),
"styles.redditmedia.com" => capture(r"https://styles\.redditmedia\.com/(.*)", "/style/", 1),
"www.redditstatic.com" => capture(r"https://www\.redditstatic\.com/(.*)", "/static/", 1),
_ => String::new(),
}
Err(_) => String::new(),
}
})
}
}
// Rewrite Reddit links to Libreddit in body of text
pub fn rewrite_urls(input_text: &str) -> String {
let text1 = match Regex::new(r#"href="(https|http|)://(www.|old.|np.|amp.|)(reddit).(com)/"#) {
Ok(re) => re.replace_all(input_text, r#"href="/"#).to_string(),
Err(_) => String::new(),
};
let text1 = Regex::new(r#"href="(https|http|)://(www.|old.|np.|amp.|)(reddit).(com)/"#).map_or(String::new(), |re| re.replace_all(input_text, r#"href="/"#).to_string());
// Rewrite external media previews to Libreddit
match Regex::new(r"https://external-preview\.redd\.it(.*)[^?]") {
Ok(re) => {
if re.is_match(&text1) {
re.replace_all(&text1, format_url(re.find(&text1).map(|x| x.as_str()).unwrap_or_default())).to_string()
} else {
text1
}
Regex::new(r"https://external-preview\.redd\.it(.*)[^?]").map_or(String::new(), |re| {
if re.is_match(&text1) {
re.replace_all(&text1, format_url(re.find(&text1).map(|x| x.as_str()).unwrap_or_default())).to_string()
} else {
text1
}
Err(_) => String::new(),
}
})
}
// Append `m` and `k` for millions and thousands respectively

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