Automatic Redlib Quota & Error Redirector

Automatically redirects to another Redlib (previously Libreddit) instance if the one you're directed to has reached its rate limit/quota or has an error.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         Automatic Redlib Quota & Error Redirector
// @namespace    happyviking
// @version      1.70.0
// @grant        none
// @run-at       document-end
// @license      MIT
// @description  Automatically redirects to another Redlib (previously Libreddit) instance if the one you're directed to has reached its rate limit/quota or has an error.
// @icon         https://gitlab.com/uploads/-/system/project/avatar/32545239/libreddit.png
// @author       HappyViking

// <<INSTANCES START HERE>>
// @match https://libreddit.diffraction.dev/*
// @match https://libreddit.privacydev.net/*
// @match https://red.artemislena.eu/*
// @match https://reddit.adminforge.de/*
// @match https://reddit.nerdvpn.de/*
// @match https://reddit.rtrace.io/*
// @match https://redlib.catsarch.com/*
// @match https://redlib.minihoot.site/*
// @match https://redlib.orangenet.cc/*
// @match https://redlib.perennialte.ch/*
// @match https://redlib.privacyredirect.com/*
// @match https://redlib.privadency.com/*
// @match https://redlib.r4fo.com/*
// @match https://redlib.thebunny.zone/*
// @match https://rl.blitzw.in/*
// @match https://safereddit.com/*
// @match https://red.ngn.tf/*
// @match https://redlib.scanash.xyz/*
// @match https://rl.bloat.cat/*
// @match https://redlib.4o1x5.dev/*
// @match https://eu.safereddit.com/*
// @match https://lr.ptr.moe/*
// @match https://redlib.nadeko.net/*
// @match https://redlib.tux.pizza/*
// @match https://l.opnxng.com/*
// @match https://libreddit.bus-hit.me/*
// @match https://libreddit.projectsegfau.lt/*
// @match https://lr.ggtyler.dev/*
// @match https://lr.n8pjl.ca/*
// @match https://r.darrennathanael.com/*
// @match https://red.arancia.click/*
// @match https://redlib.baczek.me/*
// @match https://redlib.ducks.party/*
// @match https://redlib.freedit.eu/*
// @match https://redlib.frontendfriendly.xyz/*
// @match https://redlib.incogniweb.net/*
// @match https://redlib.nirn.quest/*
// @match https://redlib.nohost.network/*
// @match https://redlib.privacy.com.de/*
// @match https://redlib.private.coffee/*
// @match https://redlib.reallyaweso.me/*
// @match https://redlib.seasi.dev/*
// @match https://redlib.vimmer.dev/*
// @match https://rl.rootdo.com/*
// @match https://lr.quitaxd.online/*
// @match https://redlib.nezumi.party/*
// @match https://redlib.kittywi.re/*
// @match https://reddit.idevicehacked.com/*
// @match https://redlib.privacy.deals/*
// @match https://reddit.owo.si/*
// @match https://redlib.dnfetheus.xyz/*
// @match https://libreddit.eu.org/*
// @match https://reddit.invak.id/*
// @match https://redlib.cow.rip/*
// @match https://redlib.xn--hackerhhle-kcb.org/*
// @match https://redlib.matthew.science/*
// @match https://libreddit.freedit.eu/*
// @match https://libreddit.hu/*
// @match https://libreddit.kylrth.com/*
// @match https://libreddit.lunar.icu/*
// @match https://libreddit.mha.fi/*
// @match https://libreddit.northboot.xyz/*
// @match https://libreddit.oxymagnesium.com/*
// @match https://libreddit.pussthecat.org/*
// @match https://libreddit.spike.codes/*
// @match https://libreddit.strongthany.cc/*
// @match https://libreddit.tiekoetter.com/*
// @match https://lr.4201337.xyz/*
// @match https://lr.aeong.one/*
// @match https://lr.artemislena.eu/*
// @match https://lr.slipfox.xyz/*
// @match https://r.walkx.fyi/*
// @match https://reddit.simo.sh/*
// @match https://reddit.smnz.de/*
// @match https://reddit.utsav2.dev/*
// @match https://snoo.habedieeh.re/*
// @match https://libreddit.kutay.dev/*
// @match https://libreddit.tux.pizza/*
// @match https://lr.vern.cc/*
// @match https://r.darklab.sh/*
// @match https://reddit.leptons.xyz/*
// @match https://discuss.whatever.social/*
// @match https://libreddit.kavin.rocks/*
// @match https://libreddit.cachyos.org/*
// @match https://libreddit.domain.glass/*
// @match https://libreddit.privacy.com.de/*
// @match https://reddit.baby/*
// <<INSTANCES END HERE>>

// ==/UserScript==


function generateNewInstanceURL() {
    if (window.location.pathname.includes(".within.website")) {
        const urlObj = new URL(window.location.toString());
        const redir = urlObj.searchParams.get('redir');
        if (!redir) return false
        const decodedRedir = decodeURIComponent(redir);
        const redirUrl = new URL(decodedRedir);
        return 'https://farside.link/redlib/' + redirUrl.pathname + redirUrl.search
    }
    return 'https://farside.link/redlib/' + (window.location.pathname + window.location.search);
}

const checkForUnexpectedPage = () => {
    const isInNormalPage = !!document.querySelector('nav');
    const isInAnubis = !!document.getElementById("anubis_version")
    const isMediaPreviewPage = window.location.pathname.includes("preview") || window.location.pathname.includes("img")
    const isCloudflarePage = document.title.includes('Just a moment') ||
        document.querySelector('#challenge-running') !== null;

    if (!isInAnubis && !isCloudflarePage && !isInNormalPage && !isMediaPreviewPage) {
        return {
            element: document.body,
            pathname: window.location.pathname,
            search: window.location.search
        }
    }

    if (window.location.pathname.includes(".within.website")) {
        const urlObj = new URL(window.location.toString());
        const redir = urlObj.searchParams.get('redir');
        if (!redir) return false
        return {
            element: document.body,
        }
    }

    return null
}

const checkForRedlibError = () => {
    const errorElement = document.getElementById("error")
    if (!errorElement) return false;
    const errorMessage = errorElement.querySelector("h1")?.innerHTML
    if (!errorMessage) return false;

    const message = errorMessage.toLowerCase()

    const hasError =
        message.includes("too many requests") ||
        message.includes("failed to parse page json data") ||
        message.includes("rate limit")

    if (hasError) {
        return {
            element: errorElement,
        }
    }

    return null
}


function main() {
    const errorInfo = checkForUnexpectedPage() ?? checkForRedlibError()
    if (errorInfo) {
        const element = errorInfo.element
        const addedMessage = document.createElement("p")
        addedMessage.textContent = "Redirecting you to new instance..."
        element.appendChild(addedMessage)
        location.replace(generateNewInstanceURL());
    }
}

main()