Repository: redlib-org/redlib (language: rust)

Issue:
💡 Feature request: Smaller imports and exports
Imports and exports can probably be smaller. Bases go real high...


Discussion / hints:

Fix patch:
diff --git a/Cargo.lock b/Cargo.lock
index 6578d178..a29b750f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -71,12 +71,6 @@ version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9"
 
-[[package]]
-name = "anyhow"
-version = "1.0.93"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c95c10ba0b00a02636238b814946408b1322d5ac4760326e6fb8ec956d85775"
-
 [[package]]
 name = "arc-swap"
 version = "1.7.1"
@@ -139,6 +133,12 @@ dependencies = [
  "windows-targets",
 ]
 
+[[package]]
+name = "base2048"
+version = "2.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "71f4fe417e8cc3bb9b437dfa9290ce92bd2730ba5374719bdfd9147fbc8f17cd"
+
 [[package]]
 name = "base64"
 version = "0.21.7"
@@ -151,6 +151,15 @@ version = "0.22.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
+[[package]]
+name = "bincode"
+version = "1.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1f45e9417d87227c7a56d22e471c6206462cba514c7590c09aff4cf6d1ddcad"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "bitflags"
 version = "2.6.0"
@@ -319,18 +328,6 @@ version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "afb84c814227b90d6895e01398aee0d8033c00e7466aca416fb6a8e0eb19d8a7"
 
-[[package]]
-name = "common-words-all"
-version = "0.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84a6ff47eb813c9e315610ceca0ddd247827e22f2cdadc4189e4676a81470c77"
-dependencies = [
- "anyhow",
- "csv",
- "glob",
- "serde",
-]
-
 [[package]]
 name = "cookie"
 version = "0.18.1"
@@ -394,27 +391,6 @@ dependencies = [
  "typenum",
 ]
 
-[[package]]
-name = "csv"
-version = "1.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "acdc4883a9c96732e4733212c01447ebd805833b7275a73ca3ee080fd77afdaf"
-dependencies = [
- "csv-core",
- "itoa",
- "ryu",
- "serde",
-]
-
-[[package]]
-name = "csv-core"
-version = "0.1.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5efa2b3d7902f4b634a20cae3c9c4e6209dc4779feb6863329607560143efa70"
-dependencies = [
- "memchr",
-]
-
 [[package]]
 name = "darling"
 version = "0.20.10"
@@ -698,12 +674,6 @@ version = "0.31.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "07e28edb80900c19c28f1072f2e8aeca7fa06b23cd4169cefe1af5aa3260783f"
 
-[[package]]
-name = "glob"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d2fabcfbdc87f4758337ca535fb41a6d701b65693ce38287d856d1674551ec9b"
-
 [[package]]
 name = "globset"
 version = "0.4.15"
@@ -1381,13 +1351,14 @@ version = "0.35.1"
 dependencies = [
  "arc-swap",
  "async-recursion",
+ "base2048",
  "base64 0.22.1",
+ "bincode",
  "brotli",
  "build_html",
  "cached",
  "chrono",
  "clap",
- "common-words-all",
  "cookie",
  "dotenvy",
  "fastrand",
@@ -1403,6 +1374,7 @@ dependencies = [
  "pretty_env_logger",
  "pulldown-cmark",
  "regex",
+ "revision",
  "rinja",
  "route-recognizer",
  "rss",
@@ -1459,6 +1431,26 @@ version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
 
+[[package]]
+name = "revision"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22f53179a035f881adad8c4d58a2c599c6b4a8325b989c68d178d7a34d1b1e4c"
+dependencies = [
+ "revision-derive",
+]
+
+[[package]]
+name = "revision-derive"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f0ec466e5d8dca9965eb6871879677bef5590cf7525ad96cae14376efb75073"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "ring"
 version = "0.17.8"
diff --git a/Cargo.toml b/Cargo.toml
index 759b1486..c7b6d4a5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -48,12 +48,14 @@ arc-swap = "1.7.1"
 serde_json_path = "0.7.1"
 async-recursion = "1.1.1"
 pulldown-cmark = { version = "0.12.0", features = ["simd", "html"], default-features = false }
-common-words-all = { version = "0.0.2", default-features = false, features = ["english", "one"] }
 hyper-rustls = { version = "0.24.2", features = [ "http2" ] }
 tegen = "0.1.4"
 serde_urlencoded = "0.7.1"
 chrono = { version = "0.4.39", default-features = false, features = [ "std" ] }
 htmlescape = "0.3.1"
+bincode = "1.3.3"
+base2048 = "2.0.2"
+revision = "0.10.0"
 
 
 [dev-dependencies]
diff --git a/src/main.rs b/src/main.rs
index 165f0cbb..bcfcd51b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -246,6 +246,7 @@ async fn main() {
 	app
 		.at("/check_update.js")
 		.get(|_| resource(include_str!("../static/check_update.js"), "text/javascript", false).boxed());
+	app.at("/copy.js").get(|_| resource(include_str!("../static/copy.js"), "text/javascript", false).boxed());
 
 	app.at("/commits.atom").get(|_| async move { proxy_commit_info().await }.boxed());
 	app.at("/instances.json").get(|_| async move { proxy_instances().await }.boxed());
@@ -284,6 +285,7 @@ async fn main() {
 	// Configure settings
 	app.at("/settings").get(|r| settings::get(r).boxed()).post(|r| settings::set(r).boxed());
 	app.at("/settings/restore").get(|r| settings::restore(r).boxed());
+	app.at("/settings/encoded-restore").post(|r| settings::encoded_restore(r).boxed());
 	app.at("/settings/update").get(|r| settings::update(r).boxed());
 
 	// RSS Subscriptions
diff --git a/src/settings.rs b/src/settings.rs
index 4b30da37..6649f694 100644
--- a/src/settings.rs
+++ b/src/settings.rs
@@ -5,12 +5,13 @@ use std::collections::HashMap;
 // CRATES
 use crate::server::ResponseExt;
 use crate::subreddit::join_until_size_limit;
-use crate::utils::{redirect, template, Preferences};
+use crate::utils::{deflate_decompress, redirect, template, Preferences};
 use cookie::Cookie;
 use futures_lite::StreamExt;
 use hyper::{Body, Request, Response};
 use rinja::Template;
 use time::{Duration, OffsetDateTime};
+use url::form_urlencoded;
 
 // STRUCTS
 #[derive(Template)]
@@ -262,3 +263,25 @@ pub async fn restore(req: Request<Body>) -> Result<Response<Body>, String> {
 pub async fn update(req: Request<Body>) -> Result<Response<Body>, String> {
 	Ok(set_cookies_method(req, false))
 }
+
+pub async fn encoded_restore(req: Request<Body>) -> Result<Response<Body>, String> {
+	let body = hyper::body::to_bytes(req.into_body())
+		.await
+		.map_err(|e| format!("Failed to get bytes from request body: {}", e))?;
+
+	let encoded_prefs = form_urlencoded::parse(&body)
+		.find(|(key, _)| key == "encoded_prefs")
+		.map(|(_, value)| value)
+		.ok_or_else(|| "encoded_prefs parameter not found in request body".to_string())?;
+
+	let bytes = base2048::decode(&encoded_prefs).ok_or_else(|| "Failed to decode base2048 encoded preferences".to_string())?;
+
+	let out = deflate_decompress(bytes)?;
+
+	let mut prefs: Preferences = bincode::deserialize(&out).map_err(|e| format!("Failed to deserialize bytes into Preferences struct: {}", e))?;
+	prefs.available_themes = vec![];
+
+	let url = format!("/settings/restore/?{}", prefs.to_urlencoded()?);
+
+	Ok(redirect(&url))
+}
diff --git a/src/utils.rs b/src/utils.rs
index 2747449c..c4ab6797 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -9,16 +9,19 @@ use crate::{client::json, server::RequestExt};
 use cookie::Cookie;
 use htmlescape::decode_html;
 use hyper::{Body, Request, Response};
+use libflate::deflate::{Decoder, Encoder};
 use log::error;
 use once_cell::sync::Lazy;
 use regex::Regex;
+use revision::revisioned;
 use rinja::Template;
 use rust_embed::RustEmbed;
-use serde::{Serialize, Serializer};
+use serde::{Deserialize, Deserializer, Serialize, Serializer};
 use serde_json::Value;
 use serde_json_path::{JsonPath, JsonPathExt};
 use std::collections::{HashMap, HashSet};
 use std::env;
+use std::io::{Read, Write};
 use std::str::FromStr;
 use std::string::ToString;
 use time::{macros::format_description, Duration, OffsetDateTime};
@@ -618,32 +621,55 @@ pub struct Params {
 	pub before: Option<String>,
 }
 
-#[derive(Default, Serialize)]
+#[derive(Default, Serialize, Deserialize, Debug, PartialEq, Eq)]
+#[revisioned(revision = 1)]
 pub struct Preferences {
-	#[serde(skip)]
+	#[revision(start = 1)]
+	#[serde(skip_serializing, skip_deserializing)]
 	pub available_themes: Vec<String>,
+	#[revision(start = 1)]
 	pub theme: String,
+	#[revision(start = 1)]
 	pub front_page: String,
+	#[revision(start = 1)]
 	pub layout: String,
+	#[revision(start = 1)]
 	pub wide: String,
+	#[revision(start = 1)]
 	pub blur_spoiler: String,
+	#[revision(start = 1)]
 	pub show_nsfw: String,
+	#[revision(start = 1)]
 	pub blur_nsfw: String,
+	#[revision(start = 1)]
 	pub hide_hls_notification: String,
+	#[revision(start = 1)]
 	pub video_quality: String,
+	#[revision(start = 1)]
 	pub hide_sidebar_and_summary: String,
+	#[revision(start = 1)]
 	pub use_hls: String,
+	#[revision(start = 1)]
 	pub autoplay_videos: String,
+	#[revision(start = 1)]
 	pub fixed_navbar: String,
+	#[revision(start = 1)]
 	pub disable_visit_reddit_confirmation: String,
+	#[revision(start = 1)]
 	pub comment_sort: String,
+	#[revision(start = 1)]
 	pub post_sort: String,
-	#[serde(serialize_with = "serialize_vec_with_plus")]
+	#[revision(start = 1)]
+	#[serde(serialize_with = "serialize_vec_with_plus", deserialize_with = "deserialize_vec_with_plus")]
 	pub subscriptions: Vec<String>,
-	#[serde(serialize_with = "serialize_vec_with_plus")]
+	#[revision(start = 1)]
+	#[serde(serialize_with = "serialize_vec_with_plus", deserialize_with = "deserialize_vec_with_plus")]
 	pub filters: Vec<String>,
+	#[revision(start = 1)]
 	pub hide_awards: String,
+	#[revision(start = 1)]
 	pub hide_score: String,
+	#[revision(start = 1)]
 	pub remove_default_feeds: String,
 }
 
@@ -654,6 +680,17 @@ where
 	serializer.serialize_str(&vec.join("+"))
 }
 
+fn deserialize_vec_with_plus<'de, D>(deserializer: D) -> Result<Vec<String>, D::Error>
+where
+	D: Deserializer<'de>,
+{
+	let string = String::deserialize(deserializer)?;
+	if string.is_empty() {
+		return Ok(Vec::new());
+	}
+	Ok(string.split('+').map(|s| s.to_string()).collect())
+}
+
 #[derive(RustEmbed)]
 #[folder = "static/themes/"]
 #[include = "*.css"]
@@ -698,6 +735,29 @@ impl Preferences {
 	pub fn to_urlencoded(&self) -> Result<String, String> {
 		serde_urlencoded::to_string(self).map_err(|e| e.to_string())
 	}
+
+	pub fn to_bincode(&self) -> Result<Vec<u8>, String> {
+		bincode::serialize(self).map_err(|e| e.to_string())
+	}
+	pub fn to_compressed_bincode(&self) -> Result<Vec<u8>, String> {
+		deflate_compress(self.to_bincode()?)
+	}
+	pub fn to_bincode_str(&self) -> Result<String, String> {
+		Ok(base2048::encode(&self.to_compressed_bincode()?))
+	}
+}
+
+pub fn deflate_compress(i: Vec<u8>) -> Result<Vec<u8>, String> {
+	let mut e = Encoder::new(Vec::new());
+	e.write_all(&i).map_err(|e| e.to_string())?;
+	e.finish().into_result().map_err(|e| e.to_string())
+}
+
+pub fn deflate_decompress(i: Vec<u8>) -> Result<Vec<u8>, String> {
+	let mut decoder = Decoder::new(&i[..]);
+	let mut out = Vec::new();
+	decoder.read_to_end(&mut out).map_err(|e| format!("Failed to read from gzip decoder: {}", e))?;
+	Ok(out)
 }
 
 /// Gets a `HashSet` of filters from the cookie in the given `Request`.
@@ -1584,3 +1644,52 @@ How`s your monitor by the way? Any IPS bleed whatsoever? I either got lucky or t
 
 	assert_eq!(render_bullet_lists(input), output);
 }
+
+#[test]
+fn test_default_prefs_serialization_loop_json() {
+	let prefs = Preferences::default();
+	let serialized = serde_json::to_string(&prefs).unwrap();
+	let deserialized: Preferences = serde_json::from_str(&serialized).unwrap();
+	assert_eq!(prefs, deserialized);
+}
+
+#[test]
+fn test_default_prefs_serialization_loop_bincode() {
+	let prefs = Preferences::default();
+	test_round_trip(&prefs, false);
+	test_round_trip(&prefs, true);
+}
+
+static KNOWN_GOOD_CONFIGS: &[&str] = &[
+	"ఴӅβØØҞÉဏႢձĬ༧ȒʯऌԔӵ୮༏",
+	"ਧՊΥÀÃǎƱГ۸ඣമĖฤ႙ʟาúໜϾௐɥঀĜໃહཞઠѫҲɂఙ࿔ǲઉƲӟӻĻฅΜδ໖ԜǗဖငƦơ৶Ą௩ԹʛใЛʃශаΏ",
+	"ਧԩΥÀÃÎŠ౭൩ඔႠϼҭöҪƸռઇԾॐნɔາǒՍҰच௨ಖມŃЉŐདƦ๙ϩএఠȝഽйʮჯඒϰळՋ௮ສ৵ऎΦѧਹಧଟƙŃ३î༦ŌပղयƟแҜ།",
+];
+
+#[test]
+fn test_known_good_configs_deserialization() {
+	for config in KNOWN_GOOD_CONFIGS {
+		let bytes = base2048::decode(config).unwrap();
+		let decompressed = deflate_decompress(bytes).unwrap();
+		assert!(bincode::deserialize::<Preferences>(&decompressed).is_ok());
+	}
+}
+
+#[test]
+fn test_known_good_configs_full_round_trip() {
+	for config in KNOWN_GOOD_CONFIGS {
+		let bytes = base2048::decode(config).unwrap();
+		let decompressed = deflate_decompress(bytes).unwrap();
+		let prefs: Preferences = bincode::deserialize(&decompressed).unwrap();
+		test_round_trip(&prefs, false);
+		test_round_trip(&prefs, true);
+	}
+}
+
+fn test_round_trip(input: &Preferences, compression: bool) {
+	let serialized = bincode::serialize(input).unwrap();
+	let compressed = if compression { deflate_compress(serialized).unwrap() } else { serialized };
+	let decompressed = if compression { deflate_decompress(compressed).unwrap() } else { compressed };
+	let deserialized: Preferences = bincode::deserialize(&decompressed).unwrap();
+	assert_eq!(*input, deserialized);
+}
diff --git a/static/copy.js b/static/copy.js
new file mode 100644
index 00000000..d7c7dd44
--- /dev/null
+++ b/static/copy.js
@@ -0,0 +1,9 @@
+async function copy() {
+    await navigator.clipboard.writeText(document.getElementById('bincode_str').value);
+}
+
+async function set_listener() {
+    document.getElementById('copy').addEventListener('click', copy);
+}
+
+window.addEventListener('load', set_listener);
\ No newline at end of file
diff --git a/static/style.css b/static/style.css
index 76b55ddb..545567e1 100644
--- a/static/style.css
+++ b/static/style.css
@@ -553,14 +553,18 @@ aside {
 .subscribe,
 .unsubscribe,
 .filter,
-.unfilter {
+.unfilter,
+.copy,
+.import {
     padding: 10px 20px;
     border-radius: 5px;
     cursor: pointer;
 }
 
 .subscribe,
-.filter {
+.filter,
+.copy,
+.import {
     color: var(--foreground);
     background-color: var(--accent);
 }
diff --git a/templates/settings.html b/templates/settings.html
index 79953121..c3d8086b 100644
--- a/templates/settings.html
+++ b/templates/settings.html
@@ -4,22 +4,22 @@
 {% block title %}Redlib Settings{% endblock %}
 
 {% block subscriptions %}
-	{% call utils::sub_list("") %}
+{% call utils::sub_list("") %}
 {% endblock %}
 
 {% block search %}
-	{% call utils::search("".to_owned(), "") %}
+{% call utils::search("".to_owned(), "") %}
 {% endblock %}
 
 {% block content %}
-	<div id="settings">
+<div id="settings">
 	<form action="/settings" method="POST">
 		<div class="prefs">
 			<fieldset>
 				<legend>Appearance</legend>
 				<div class="prefs-group">
 					<label for="theme">Theme:</label>
-					<select name="theme" id="theme"> 
+					<select name="theme" id="theme">
 						{% call utils::options(prefs.theme, prefs.available_themes, "system") %}
 					</select>
 				</div>
@@ -29,144 +29,162 @@
 				<div class="prefs-group">
 					<label for="remove_default_feeds">Remove default feeds</label>
 					<input type="hidden" value="off" name="remove_default_feeds">
-					<input type="checkbox" name="remove_default_feeds" id="remove_default_feeds" {% if prefs.remove_default_feeds == "on" %}checked{% endif %}>
+					<input type="checkbox" name="remove_default_feeds" id="remove_default_feeds" {% if
+						prefs.remove_default_feeds=="on" %}checked{% endif %}>
 				</div>
 				<div class="prefs-group">
 					<label for="front_page">Front page:</label>
-					<select name="front_page" id="front_page"> 
+					<select name="front_page" id="front_page">
 						{% call utils::options(prefs.front_page, ["default", "popular", "all"], "default") %}
 					</select>
 				</div>
 				<div class="prefs-group">
 					<label for="layout">Layout:</label>
-					<select name="layout" id="layout"> 
+					<select name="layout" id="layout">
 						{% call utils::options(prefs.layout, ["card", "clean", "compact"], "card") %}
 					</select>
 				</div>
 				<div class="prefs-group">
 					<label for="wide">Wide UI:</label>
 					<input type="hidden" value="off" name="wide">
-					<input type="checkbox" name="wide" id="wide" {% if prefs.wide == "on" %}checked{% endif %}>
+					<input type="checkbox" name="wide" id="wide" {% if prefs.wide=="on" %}checked{% endif %}>
 				</div>
 			</fieldset>
 			<fieldset>
 				<legend>Content</legend>
 				<div class="prefs-group">
 					<label for="video_quality">Video quality:</label>
-					<select name="video_quality" id="video_quality"> 
+					<select name="video_quality" id="video_quality">
 						{% call utils::options(prefs.video_quality, ["best", "medium", "worst"], "best") %}
 					</select>
 				</div>
 				<div class="prefs-group">
 					<label for="post_sort" title="Applies only to subreddit feeds">Default subreddit post sort:</label>
-					<select name="post_sort"> 
-						{% call utils::options(prefs.post_sort, ["hot", "new", "top", "rising", "controversial"], "hot") %}
+					<select name="post_sort">
+						{% call utils::options(prefs.post_sort, ["hot", "new", "top", "rising", "controversial"], "hot")
+						%}
 					</select>
 				</div>
 				<div class="prefs-group">
 					<label for="comment_sort">Default comment sort:</label>
-					<select name="comment_sort" id="comment_sort"> 
-						{% call utils::options(prefs.comment_sort, ["confidence", "top", "new", "controversial", "old"], "confidence") %}
+					<select name="comment_sort" id="comment_sort">
+						{% call utils::options(prefs.comment_sort, ["confidence", "top", "new", "controversial", "old"],
+						"confidence") %}
 					</select>
 				</div>
 				<div class="prefs-group">
 					<label for="blur_spoiler">Blur spoiler previews:</label>
 					<input type="hidden" value="off" name="blur_spoiler">
-					<input type="checkbox" name="blur_spoiler" id="blur_spoiler" {% if prefs.blur_spoiler == "on" %}checked{% endif %}>
+					<input type="checkbox" name="blur_spoiler" id="blur_spoiler" {% if prefs.blur_spoiler=="on"
+						%}checked{% endif %}>
 				</div>
-        {% if !crate::utils::sfw_only() %}
+				{% if !crate::utils::sfw_only() %}
 				<div class="prefs-group">
 					<label for="show_nsfw">Show NSFW posts:</label>
 					<input type="hidden" value="off" name="show_nsfw">
-					<input type="checkbox" name="show_nsfw" id="show_nsfw" {% if prefs.show_nsfw == "on" %}checked{% endif %}>
+					<input type="checkbox" name="show_nsfw" id="show_nsfw" {% if prefs.show_nsfw=="on" %}checked{% endif
+						%}>
 				</div>
 				<div class="prefs-group">
 					<label for="blur_nsfw">Blur NSFW previews:</label>
 					<input type="hidden" value="off" name="blur_nsfw">
-					<input type="checkbox" name="blur_nsfw" id="blur_nsfw" {% if prefs.blur_nsfw == "on" %}checked{% endif %}>
+					<input type="checkbox" name="blur_nsfw" id="blur_nsfw" {% if prefs.blur_nsfw=="on" %}checked{% endif
+						%}>
 				</div>
-        {% endif %}
+				{% endif %}
 				<div class="prefs-group">
 					<label for="autoplay_videos">Autoplay videos</label>
 					<input type="hidden" value="off" name="autoplay_videos">
-					<input type="checkbox" name="autoplay_videos" id="autoplay_videos" {% if prefs.autoplay_videos == "on" %}checked{% endif %}>
+					<input type="checkbox" name="autoplay_videos" id="autoplay_videos" {% if prefs.autoplay_videos=="on"
+						%}checked{% endif %}>
 				</div>
 				<div class="prefs-group">
 					<label for="fixed_navbar">Keep navbar fixed</label>
 					<input type="hidden" value="off" name="fixed_navbar">
-					<input type="checkbox" name="fixed_navbar" {% if prefs.fixed_navbar == "on" %}checked{% endif %}>
+					<input type="checkbox" name="fixed_navbar" {% if prefs.fixed_navbar=="on" %}checked{% endif %}>
 				</div>
 				<div class="prefs-group">
 					<label for="hide_sidebar_and_summary">Hide the summary and sidebar</label>
 					<input type="hidden" value="off" name="hide_sidebar_and_summary">
-					<input type="checkbox" name="hide_sidebar_and_summary" {% if prefs.hide_sidebar_and_summary == "on" %}checked{% endif %}>
+					<input type="checkbox" name="hide_sidebar_and_summary" {% if prefs.hide_sidebar_and_summary=="on"
+						%}checked{% endif %}>
 				</div>
 				<div class="prefs-group">
 					<label for="use_hls">Use HLS for videos</label>
 					<details id="feeds">
 						<summary>Why?</summary>
-						<div id="feed_list" class="helper">Reddit videos require JavaScript (via HLS.js) to be enabled to be played with audio. Therefore, this toggle lets you either use Redlib JS-free or utilize this feature.</div>
+						<div id="feed_list" class="helper">Reddit videos require JavaScript (via HLS.js) to be enabled
+							to be played with audio. Therefore, this toggle lets you either use Redlib JS-free or
+							utilize this feature.</div>
 					</details>
 					<input type="hidden" value="off" name="use_hls">
-					<input type="checkbox" name="use_hls" id="use_hls" {% if prefs.use_hls == "on" %}checked{% endif %}>
+					<input type="checkbox" name="use_hls" id="use_hls" {% if prefs.use_hls=="on" %}checked{% endif %}>
 				</div>
 				<div class="prefs-group">
 					<label for="hide_hls_notification">Hide notification about possible HLS usage</label>
 					<input type="hidden" value="off" name="hide_hls_notification">
-					<input type="checkbox" name="hide_hls_notification" id="hide_hls_notification" {% if prefs.hide_hls_notification == "on" %}checked{% endif %}>
+					<input type="checkbox" name="hide_hls_notification" id="hide_hls_notification" {% if
+						prefs.hide_hls_notification=="on" %}checked{% endif %}>
 				</div>
 				<div class="prefs-group">
 					<label for="hide_awards">Hide awards</label>
 					<input type="hidden" value="off" name="hide_awards">
-					<input type="checkbox" name="hide_awards" id="hide_awards" {% if prefs.hide_awards == "on" %}checked{% endif %}>
+					<input type="checkbox" name="hide_awards" id="hide_awards" {% if prefs.hide_awards=="on" %}checked{%
+						endif %}>
 				</div>
 				<div class="prefs-group">
 					<label for="hide_score">Hide score</label>
 					<input type="hidden" value="off" name="hide_score">
-					<input type="checkbox" name="hide_score" id="hide_score" {% if prefs.hide_score == "on" %}checked{% endif %}>
+					<input type="checkbox" name="hide_score" id="hide_score" {% if prefs.hide_score=="on" %}checked{%
+						endif %}>
 				</div>
 				<div class="prefs-group">
-					<label for="disable_visit_reddit_confirmation">Do not confirm before visiting content on Reddit</label>
+					<label for="disable_visit_reddit_confirmation">Do not confirm before visiting content on
+						Reddit</label>
 					<input type="hidden" value="off" name="disable_visit_reddit_confirmation">
-					<input type="checkbox" name="disable_visit_reddit_confirmation" {% if prefs.disable_visit_reddit_confirmation == "on" %}checked{% endif %}>
+					<input type="checkbox" name="disable_visit_reddit_confirmation" {% if
+						prefs.disable_visit_reddit_confirmation=="on" %}checked{% endif %}>
 				</div>
 			</fieldset>
 			<input id="save" type="submit" value="Save">
 		</div>
 	</form>
 	{% if prefs.subscriptions.len() > 0 %}
-		<div class="prefs" id="settings_subs">
-			<legend>Subscribed Feeds</legend>
-			{% for sub in prefs.subscriptions %}
-			<div>
-				{% let feed -%}
-				{% if sub.starts_with("u_") -%}{% let feed = format!("u/{}", &sub[2..]) -%}{% else -%}{% let feed = format!("r/{}", sub) -%}{% endif -%}
-				<a href="/{{ feed }}">{{ feed }}</a>
-				<form action="/r/{{ sub }}/unsubscribe/?redirect=settings" method="POST">
-						<button class="unsubscribe">Unsubscribe</button>
-				</form>
-			</div>
-			{% endfor %}
+	<div class="prefs" id="settings_subs">
+		<legend>Subscribed Feeds</legend>
+		{% for sub in prefs.subscriptions %}
+		<div>
+			{% let feed -%}
+			{% if sub.starts_with("u_") -%}{% let feed = format!("u/{}", &sub[2..]) -%}{% else -%}{% let feed =
+			format!("r/{}", sub) -%}{% endif -%}
+			<a href="/{{ feed }}">{{ feed }}</a>
+			<form action="/r/{{ sub }}/unsubscribe/?redirect=settings" method="POST">
+				<button class="unsubscribe">Unsubscribe</button>
+			</form>
 		</div>
+		{% endfor %}
+	</div>
 	{% endif %}
 	{% if !prefs.filters.is_empty() %}
-		<div class="prefs" id="settings_filters">
-			<legend>Filtered Feeds</legend>
-			{% for sub in prefs.filters %}
-			<div>
-				{% let feed -%}
-				{% if sub.starts_with("u_") -%}{% let feed = format!("u/{}", &sub[2..]) -%}{% else -%}{% let feed = format!("r/{}", sub) -%}{% endif -%}
-				<a href="/{{ feed }}">{{ feed }}</a>
-				<form action="/r/{{ sub }}/unfilter/?redirect=settings" method="POST">
-					<button class="unfilter">Unfilter</button>
-				</form>
-			</div>
-			{% endfor %}
+	<div class="prefs" id="settings_filters">
+		<legend>Filtered Feeds</legend>
+		{% for sub in prefs.filters %}
+		<div>
+			{% let feed -%}
+			{% if sub.starts_with("u_") -%}{% let feed = format!("u/{}", &sub[2..]) -%}{% else -%}{% let feed =
+			format!("r/{}", sub) -%}{% endif -%}
+			<a href="/{{ feed }}">{{ feed }}</a>
+			<form action="/r/{{ sub }}/unfilter/?redirect=settings" method="POST">
+				<button class="unfilter">Unfilter</button>
+			</form>
 		</div>
+		{% endfor %}
+	</div>
 	{% endif %}
 
 	<div id="settings_note">
-		<p><b>Note:</b> settings and subscriptions are saved in browser cookies. Clearing your cookies will reset them.</p>
+		<p><b>Note:</b> settings and subscriptions are saved in browser cookies. Clearing your cookies will reset them.
+		</p>
 		<br>
 		{% match prefs.to_urlencoded() %}
 		{% when Ok with (encoded_prefs) %}
@@ -176,7 +194,24 @@
 		<p>There was an error creating your restore link: {{ err }}</p>
 		<p>Please report this issue</p>
 		{% endmatch %}
+		<br />
+		<div>
+			<script src="/copy.js"></script>
+			<label for="bincode_str">Or, export/import here (be sure to save first):</label>
+			<br />
+			<input type="text" id="bincode_str" name="bincode_str"
+				value="{% match prefs.to_bincode_str() %}{% when Ok with (bincode_str) %}{{ bincode_str }}{% when Err with (err) %}Error: {{ err }}{% endmatch %}"
+				readonly>
+			<button id="copy" class="copy">Copy</button>
+
+			<br />
+			<form action="/settings/encoded-restore/" method="POST">
+				<input type="text" id="encoded_prefs" name="encoded_prefs" value=""
+					placeholder="Paste your encoded settings here">
+				<button class="import" type="submit">Import</button>
+			</form>
+		</div>
 	</div>
 </div>
 
-{% endblock %}
+{% endblock %}
\ No newline at end of file


Test patch: