libredirect/background.js

692 lines
20 KiB
JavaScript

"use strict";
const youtubeDomains = [
"m.youtube.com",
"youtube.com",
"img.youtube.com",
"www.youtube.com",
"youtube-nocookie.com",
"www.youtube-nocookie.com",
"youtu.be",
"s.ytimg.com",
"music.youtube.com",
];
const nitterInstances = [
"https://nitter.net",
"https://nitter.snopyta.org",
"https://nitter.42l.fr",
"https://nitter.nixnet.services",
"https://nitter.13ad.de",
"https://nitter.pussthecat.org",
"https://nitter.mastodont.cat",
"https://nitter.dark.fail",
"https://nitter.tedomum.net",
"https://nitter.cattube.org",
"https://nitter.fdn.fr",
"https://nitter.1d4.us",
"https://nitter.kavin.rocks",
"https://tweet.lambda.dance",
"https://nitter.cc",
"https://nitter.weaponizedhumiliation.com",
"https://nitter.vxempire.xyz",
"http://3nzoldnxplag42gqjs23xvghtzf6t6yzssrtytnntc6ppc7xxuoneoad.onion",
"http://nitter.l4qlywnpwqsluw65ts7md3khrivpirse744un3x7mlskqauz5pyuzgqd.onion",
"http://nitterlgj3n5fgwesu3vxc5h67ruku33nqaoeoocae2mvlzhsu6k7fqd.onion",
"http://npf37k3mtzwxreiw52ccs5ay4e6qt2fkcs2ndieurdyn2cuzzsfyfvid.onion",
];
const twitterDomains = [
"twitter.com",
"www.twitter.com",
"mobile.twitter.com",
"pbs.twimg.com",
"video.twimg.com",
];
const invidiousInstances = [
"https://invidious.snopyta.org",
"https://invidious.xyz",
"https://invidious.kavin.rocks",
"https://tube.connect.cafe",
"https://invidious.zapashcanon.fr",
"https://invidiou.site",
"https://vid.mint.lgbt",
"https://invidious.site",
"https://yewtu.be",
"http://fz253lmuao3strwbfbmx46yu7acac2jz27iwtorgmbqlkurlclmancad.onion",
"http://qklhadlycap4cnod.onion",
"http://c7hqkpkpemu6e7emz5b4vyz7idjgdvgaaa3dyimmeojqbgpea3xqjoid.onion",
"http://w6ijuptxiku4xpnnaetxvnkc5vqcdu7mgns2u77qefoixi63vbvnpnqd.onion",
];
const instagramDomains = [
"instagram.com",
"www.instagram.com",
"help.instagram.com",
"about.instagram.com",
];
const instagramReservedPaths = [
"about",
"explore",
"support",
"press",
"api",
"privacy",
"safety",
"admin",
"graphql",
"accounts",
"help",
"terms",
"contact",
"blog",
"igtv",
"u",
"p",
"fragment",
"imageproxy",
"videoproxy",
".well-known",
"tv",
"reel",
];
const bibliogramBypassPaths = /\/(accounts\/|embeds?.js)/;
const bibliogramInstances = [
"https://bibliogram.art",
"https://bibliogram.snopyta.org",
"https://bibliogram.pussthecat.org",
"https://bibliogram.nixnet.services",
"https://bg.endl.site",
"https://bibliogram.13ad.de",
"https://bibliogram.pixelfed.uno",
"https://bibliogram.ethibox.fr",
"https://bibliogram.hamster.dance",
"https://bibliogram.kavin.rocks",
"https://bibliogram.ggc-project.de",
];
const osmDefault = "https://openstreetmap.org";
const redditDomains = [
"www.reddit.com",
"np.reddit.com",
"new.reddit.com",
"amp.reddit.com",
];
const redditBypassPaths = /\/(gallery\/poll\/rpan\/settings\/topics)/;
const oldRedditViews = [
// teddit: privacy w/ old UI
"https://teddit.net",
"https://teddit.ggc-project.de",
"https://teddit.kavin.rocks",
"https://snew.notabug.io", // anti-censorship
// libreddit: privacy w/ modern UI
"https://libredd.it",
"https://libreddit.spike.codes",
"https://libreddit.kavin.rocks",
"https://libreddit.insanity.wtf",
"https://libreddit.dothq.co",
"https://old.reddit.com", // desktop
"https://i.reddit.com" // mobile
];
const oldRedditDefaultView = oldRedditViews[0];
const googleMapsRegex = /https?:\/\/(((www|maps)\.)?(google\.).*(\/maps)|maps\.(google\.).*)/;
const mapCentreRegex = /@(-?\d[0-9.]*),(-?\d[0-9.]*),(\d{1,2})[.z]/;
const dataLatLngRegex = /(!3d|!4d)(-?[0-9]{1,10}.[0-9]{1,10})/g;
const placeRegex = /\/place\/(.*)\//;
const travelModes = {
driving: "fossgis_osrm_car",
walking: "fossgis_osrm_foot",
bicycling: "fossgis_osrm_bike",
transit: "fossgis_osrm_car", // not implemented on OSM, default to car.
};
const layers = {
none: "S",
transit: "T",
traffic: "S", // not implemented on OSM, default to standard.
bicycling: "C",
};
const googleSearchRegex = /https?:\/\/(((www|maps)\.)?(google\.).*(\/search)|search\.(google\.).*)/;
const privateSearchEngine = [
{ link: "https://duckduckgo.com", q: "/" },
{ link: "https://startpage.com", q: "/search/" },
{ link: "https://www.qwant.com", q: "/" },
{ link: "https://www.mojeek.com", q: "/search" },
];
let disableNitter;
let disableInvidious;
let disableBibliogram;
let disableOsm;
let disableOldReddit;
let disableSearchEngine;
let nitterInstance;
let invidiousInstance;
let bibliogramInstance;
let osmInstance;
let oldRedditView;
let alwaysProxy;
let onlyEmbeddedVideo;
let videoQuality;
let invidiousDarkMode;
let invidiousVolume;
let invidiousPlayerStyle;
let invidiousSubtitles;
let invidiousAutoplay;
let useFreeTube;
let nitterRandomPool;
let invidiousRandomPool;
let bibliogramRandomPool;
let exceptions;
window.browser = window.browser || window.chrome;
function filterInstances(instances) {
return instances.filter((instance) => !instance.includes(".onion"));
}
browser.storage.sync.get(
[
"nitterInstance",
"invidiousInstance",
"bibliogramInstance",
"osmInstance",
"oldRedditView",
"disableNitter",
"disableInvidious",
"disableBibliogram",
"disableOsm",
"disableOldReddit",
"disableSearchEngine",
"alwaysProxy",
"onlyEmbeddedVideo",
"videoQuality",
"invidiousDarkMode",
"invidiousVolume",
"invidiousPlayerStyle",
"invidiousSubtitles",
"invidiousAutoplay",
"useFreeTube",
"nitterRandomPool",
"invidiousRandomPool",
"bibliogramRandomPool",
"exceptions",
],
(result) => {
disableNitter = result.disableNitter;
disableInvidious = result.disableInvidious;
disableBibliogram = result.disableBibliogram;
disableOsm = result.disableOsm;
disableOldReddit = result.disableOldReddit;
disableSearchEngine = result.disableSearchEngine;
nitterInstance = result.nitterInstance;
invidiousInstance = result.invidiousInstance;
bibliogramInstance = result.bibliogramInstance;
osmInstance = result.osmInstance || osmDefault;
oldRedditView = result.oldRedditView || oldRedditDefaultView;
alwaysProxy = result.alwaysProxy;
onlyEmbeddedVideo = result.onlyEmbeddedVideo;
videoQuality = result.videoQuality;
invidiousDarkMode = result.invidiousDarkMode;
exceptions = result.exceptions
? result.exceptions.map((e) => {
return new RegExp(e);
})
: [];
invidiousVolume = result.invidiousVolume;
invidiousPlayerStyle = result.invidiousPlayerStyle;
invidiousSubtitles = result.invidiousSubtitles || "";
invidiousAutoplay = result.invidiousAutoplay;
useFreeTube = result.useFreeTube;
nitterRandomPool = result.nitterRandomPool
? result.nitterRandomPool.split(",")
: filterInstances(nitterInstances);
invidiousRandomPool = result.invidiousRandomPool
? result.invidiousRandomPool.split(",")
: filterInstances(invidiousInstances);
bibliogramRandomPool = result.bibliogramRandomPool
? result.bibliogramRandomPool.split(",")
: filterInstances(bibliogramInstances);
}
);
browser.storage.onChanged.addListener((changes) => {
if ("nitterInstance" in changes) {
nitterInstance = changes.nitterInstance.newValue;
}
if ("invidiousInstance" in changes) {
invidiousInstance = changes.invidiousInstance.newValue;
}
if ("bibliogramInstance" in changes) {
bibliogramInstance = changes.bibliogramInstance.newValue;
}
if ("osmInstance" in changes) {
osmInstance = changes.osmInstance.newValue || osmDefault;
}
if ("oldRedditView" in changes) {
oldRedditView = changes.oldRedditView.newValue || oldRedditDefaultView;
}
if ("disableNitter" in changes) {
disableNitter = changes.disableNitter.newValue;
}
if ("disableInvidious" in changes) {
disableInvidious = changes.disableInvidious.newValue;
}
if ("disableBibliogram" in changes) {
disableBibliogram = changes.disableBibliogram.newValue;
}
if ("disableOsm" in changes) {
disableOsm = changes.disableOsm.newValue;
}
if ("disableOldReddit" in changes) {
disableOldReddit = changes.disableOldReddit.newValue;
}
if ("disableSearchEngine" in changes) {
disableSearchEngine = changes.disableSearchEngine.newValue;
}
if ("alwaysProxy" in changes) {
alwaysProxy = changes.alwaysProxy.newValue;
}
if ("onlyEmbeddedVideo" in changes) {
onlyEmbeddedVideo = changes.onlyEmbeddedVideo.newValue;
}
if ("videoQuality" in changes) {
videoQuality = changes.videoQuality.newValue;
}
if ("invidiousDarkMode" in changes) {
invidiousDarkMode = changes.invidiousDarkMode.newValue;
}
if ("invidiousVolume" in changes) {
invidiousVolume = changes.invidiousVolume.newValue;
}
if ("invidiousPlayerStyle" in changes) {
invidiousPlayerStyle = changes.invidiousPlayerStyle.newValue;
}
if ("invidiousSubtitles" in changes) {
invidiousSubtitles = changes.invidiousSubtitles.newValue;
}
if ("invidiousAutoplay" in changes) {
invidiousAutoplay = changes.invidiousAutoplay.newValue;
}
if ("useFreeTube" in changes) {
useFreeTube = changes.useFreeTube.newValue;
}
if ("nitterRandomPool" in changes) {
nitterRandomPool = changes.nitterRandomPool.newValue.split(",");
}
if ("invidiousRandomPool" in changes) {
invidiousRandomPool = changes.invidiousRandomPool.newValue.split(",");
}
if ("bibliogramRandomPool" in changes) {
bibliogramRandomPool = changes.bibliogramRandomPool.newValue.split(",");
}
if ("exceptions" in changes) {
exceptions = changes.exceptions.newValue.map((e) => {
return new RegExp(e);
});
}
});
function getRandomInstance(instanceList) {
return instanceList[~~(instanceList.length * Math.random())];
}
function addressToLatLng(address, callback) {
const xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = () => {
if (xmlhttp.readyState === XMLHttpRequest.DONE) {
if (xmlhttp.status === 200) {
const json = JSON.parse(xmlhttp.responseText)[0];
if (json) {
callback(
`${json.lat}%2C${json.lon}`,
`${json.boundingbox[2]},${json.boundingbox[1]},${json.boundingbox[3]},${json.boundingbox[0]}`
);
}
} else {
console.info("Error: Status is " + xmlhttp.status);
}
}
};
xmlhttp.open(
"GET",
`https://nominatim.openstreetmap.org/search/${address}?format=json&limit=1`,
false
);
xmlhttp.send();
}
function isException(url, initiator) {
return (
exceptions.some((regex) => regex.test(url.href)) ||
(initiator && exceptions.some((regex) => regex.test(initiator.href)))
);
}
function isFirefox() {
return typeof InstallTrigger !== "undefined";
}
function redirectYouTube(url, initiator, type) {
if (disableInvidious || isException(url, initiator)) {
return null;
}
if (
initiator &&
(initiator.origin === invidiousInstance ||
invidiousInstances.includes(initiator.origin) ||
youtubeDomains.includes(initiator.host))
) {
return null;
}
if (url.pathname.match(/iframe_api/) || url.pathname.match(/www-widgetapi/)) {
// Don't redirect YouTube Player API.
return null;
}
if (url.host.split(".")[0] === "studio") {
// Avoid redirecting `studio.youtube.com`
return null;
}
if (onlyEmbeddedVideo && type !== "sub_frame") {
return null;
}
if (useFreeTube && type === "main_frame") {
return `freetube://${url}`;
}
// Apply settings
if (alwaysProxy) {
url.searchParams.append("local", true);
}
if (videoQuality) {
url.searchParams.append("quality", videoQuality);
}
if (invidiousDarkMode) {
url.searchParams.append("dark_mode", invidiousDarkMode);
}
if (invidiousVolume) {
url.searchParams.append("volume", invidiousVolume);
}
if (invidiousPlayerStyle) {
url.searchParams.append("player_style", invidiousPlayerStyle);
}
if (invidiousSubtitles) {
url.searchParams.append("subtitles", invidiousSubtitles);
}
url.searchParams.append("autoplay", invidiousAutoplay ? 1 : 0);
return `${
invidiousInstance || getRandomInstance(invidiousRandomPool)
}${url.pathname.replace("/shorts", "")}${url.search}`;
}
function redirectTwitter(url, initiator) {
if (disableNitter || isException(url, initiator)) {
return null;
}
if (url.pathname.includes("/home")) {
return null;
}
if (
isFirefox() &&
initiator &&
(initiator.origin === nitterInstance ||
nitterInstances.includes(initiator.origin) ||
twitterDomains.includes(initiator.host))
) {
browser.storage.sync.set({
redirectBypassFlag: true,
});
return null;
}
if (url.host.split(".")[0] === "pbs") {
return `${
nitterInstance || getRandomInstance(nitterRandomPool)
}/pic/${encodeURIComponent(url.href)}`;
} else if (url.host.split(".")[0] === "video") {
return `${
nitterInstance || getRandomInstance(nitterRandomPool)
}/gif/${encodeURIComponent(url.href)}`;
} else if (url.pathname.includes("tweets")) {
return `${
nitterInstance || getRandomInstance(nitterRandomPool)
}${url.pathname.replace("/tweets", "")}${url.search}`;
} else {
return `${nitterInstance || getRandomInstance(nitterRandomPool)}${
url.pathname
}${url.search}`;
}
}
function redirectInstagram(url, initiator, type) {
if (disableBibliogram || isException(url, initiator)) {
return null;
}
// Do not redirect Bibliogram view on Instagram links
if (
initiator &&
(initiator.origin === bibliogramInstance ||
bibliogramInstances.includes(initiator.origin) ||
instagramDomains.includes(initiator.host))
) {
return null;
}
// Do not redirect /accounts, /embeds.js, or anything other than main_frame
if (type !== "main_frame" || url.pathname.match(bibliogramBypassPaths)) {
return null;
}
if (
url.pathname === "/" ||
instagramReservedPaths.includes(url.pathname.split("/")[1])
) {
return `${bibliogramInstance || getRandomInstance(bibliogramRandomPool)}${
url.pathname
}${url.search}`;
} else {
// Likely a user profile, redirect to '/u/...'
return `${bibliogramInstance || getRandomInstance(bibliogramRandomPool)}/u${
url.pathname
}${url.search}`;
}
}
function redirectGoogleMaps(url, initiator) {
if (disableOsm || isException(url, initiator)) {
return null;
}
let redirect;
let mapCentre = "";
let params = "";
// Set map centre if present
if (url.pathname.match(mapCentreRegex)) {
const [, lat, lon, zoom] = url.pathname.match(mapCentreRegex);
mapCentre = `#map=${zoom}/${lat}/${lon}`;
} else if (url.search.includes("center=")) {
const [lat, lon] = url.searchParams.get("center").split(",");
mapCentre = `#map=${url.searchParams.get("zoom") || "17"}/${lat}/${lon}`;
// Set default zoom if mapCentre not present
} else {
params = "&zoom=17";
}
// Set map layer
params = `${params}&layers=${
layers[url.searchParams.get("layer")] || layers["none"]
}`;
// Handle Google Maps Embed API
if (url.pathname.includes("/embed")) {
let query = "";
if (url.searchParams.has("q")) {
query = url.searchParams.get("q");
} else if (url.searchParams.has("query")) {
query = url.searchParams.has("query");
} else if (url.searchParams.has("pb")) {
try {
query = url.searchParams.get("pb").split(/!2s(.*?)!/)[1];
} catch (error) {
console.error(error);
// Unable to find map marker in URL.
}
}
let marker, bbox;
addressToLatLng(query, (coords, boundingbox) => {
marker = coords;
bbox = boundingbox;
});
redirect = `${osmInstance}/export/embed.html?bbox=${bbox}&layer=mapnik&marker=${marker}`;
// Handle Google Maps Directions
} else if (url.pathname.includes("/dir")) {
const travelMode =
travelModes[url.searchParams.get("travelmode")] || travelModes["driving"];
let origin;
addressToLatLng(url.searchParams.get("origin"), (coords) => {
origin = coords;
});
let destination;
addressToLatLng(url.searchParams.get("destination"), (coords) => {
destination = coords;
});
redirect = `${osmInstance}/directions?engine=${travelMode}&route=${origin}%3B${destination}${mapCentre}${params}`;
// Get marker from data attribute
} else if (
url.pathname.includes("data=") &&
url.pathname.match(dataLatLngRegex)
) {
const [mlat, mlon] = url.pathname.match(dataLatLngRegex);
redirect = `${osmInstance}/?mlat=${mlat.replace(
"!3d",
""
)}&mlon=${mlon.replace("!4d", "")}${mapCentre}${params}`;
// Get marker from ll param
} else if (url.searchParams.has("ll")) {
const [mlat, mlon] = url.searchParams.get("ll").split(",");
redirect = `${osmInstance}/?mlat=${mlat}&mlon=${mlon}${mapCentre}${params}`;
// Get marker from viewpoint param.
} else if (url.searchParams.has("viewpoint")) {
const [mlat, mlon] = url.searchParams.get("viewpoint").split(",");
redirect = `${osmInstance}/?mlat=${mlat}&mlon=${mlon}${mapCentre}${params}`;
// Use query as search if present.
} else {
let query;
if (url.searchParams.has("q")) {
query = url.searchParams.get("q");
} else if (url.searchParams.has("query")) {
query = url.searchParams.get("query");
} else if (url.pathname.match(placeRegex)) {
query = url.pathname.match(placeRegex)[1];
}
redirect = `${osmInstance}/${query ? "search?query=" + query : ""}${
mapCentre || "#"
}${params}`;
}
return redirect;
}
function redirectReddit(url, initiator, type) {
if (disableOldReddit || isException(url, initiator)) {
return null;
}
// Do not redirect when already on the selected view
if (
(initiator && initiator.origin === oldRedditView) ||
url.origin === oldRedditView
) {
return null;
}
// Do not redirect exclusions nor anything other than main_frame
if (type !== "main_frame" || url.pathname.match(redditBypassPaths)) {
return null;
}
return `${oldRedditView}${url.pathname}${url.search}`;
}
function redirectSearchEngine(url, initiator) {
if (disableSearchEngine || isException(url, initiator)) {
return null;
}
let searchEngine = getRandomInstance(privateSearchEngine);
let search = "";
url.search
.slice(1)
.split("&")
.forEach(function (input) {
if (input.startsWith("q=")) search = input;
});
console.log("search: ", search);
return `${searchEngine.link}${searchEngine.q}?${search}`;
}
browser.webRequest.onBeforeRequest.addListener(
(details) => {
const url = new URL(details.url);
let initiator;
if (details.originUrl) {
initiator = new URL(details.originUrl);
} else if (details.initiator) {
initiator = new URL(details.initiator);
}
let redirect;
if (youtubeDomains.includes(url.host)) {
redirect = {
redirectUrl: redirectYouTube(url, initiator, details.type),
};
} else if (twitterDomains.includes(url.host)) {
redirect = {
redirectUrl: redirectTwitter(url, initiator),
};
} else if (instagramDomains.includes(url.host)) {
redirect = {
redirectUrl: redirectInstagram(url, initiator, details.type),
};
} else if (url.href.match(googleMapsRegex)) {
redirect = {
redirectUrl: redirectGoogleMaps(url, initiator),
};
} else if (
redditDomains.includes(url.host) ||
oldRedditViews.includes(url.origin)
) {
redirect = {
redirectUrl: redirectReddit(url, initiator, details.type),
};
} else if (url.href.match(googleSearchRegex)) {
redirect = {
redirectUrl: redirectSearchEngine(url, initiator),
};
}
if (redirect && redirect.redirectUrl) {
console.info(
"Redirecting",
`"${url.href}"`,
"=>",
`"${redirect.redirectUrl}"`
);
console.info("Details", details);
}
return redirect;
},
{
urls: ["<all_urls>"],
},
["blocking"]
);
browser.runtime.onInstalled.addListener((details) => {
if (details.reason === "update") {
browser.storage.sync.get(
["whitelist", "exceptions", "invidiousInstance"],
(result) => {
if (result.whitelist) {
let whitelist = result.whitelist.map((e) =>
e.replace(/[-\/\\^$*+?.()|[\]{}]/g, "\\$&")
);
browser.storage.sync.set({
exceptions: result.exceptions.concat(whitelist),
whitelist: null,
});
}
if (result.invidiousInstance === "https://invidio.us") {
browser.storage.sync.set({
invidiousInstance: null,
});
}
}
);
}
});