UofT Library Proxy

Adds a floating button to proxy Nature, ACSPublications, JAMA and ScienceDirect pages through UofT library access
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// ==UserScript==
// @name         UofT Library Proxy
// @namespace    https://gist.github.com/jackjona/3f8a0b39f23b78c6f681fa7c25b265bf
// @homepageURL  https://gist.github.com/jackjona/3f8a0b39f23b78c6f681fa7c25b265bf
// @supportURL   https://gist.github.com/jackjona/3f8a0b39f23b78c6f681fa7c25b265bf
// @version      1.2.2
// @author       Jack Jona
// @description  Adds a floating button to proxy Nature, ACSPublications, JAMA and ScienceDirect pages through UofT library access
// @match        https://www.nature.com/*
// @match        https://www.sciencedirect.com/*
// @match        https://onlinelibrary.wiley.com/*
// @match        https://*.onlinelibrary.wiley.com/*
// @match        https://www.science.org/*
// @match        https://link.springer.com/*
// @match        https://pubs.acs.org/*
// @match        https://jamanetwork.com/*
// @icon         https://icons.duckduckgo.com/ip3/library.utoronto.ca.ico
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const PROXY_SUFFIX = '.myaccess.library.utoronto.ca';

    // If already proxied, do nothing
    if (location.hostname.includes(PROXY_SUFFIX)) return;

    // Create floating button
    const btn = document.createElement('div');
    btn.textContent = 'UofT Proxy';
    btn.style.position = 'fixed';
    btn.style.bottom = '20px';
    btn.style.right = '20px';
    btn.style.padding = '10px 14px';
    btn.style.background = '#00204E';
    btn.style.color = 'white';
    btn.style.fontSize = '14px';
    btn.style.borderRadius = '6px';
    btn.style.cursor = 'pointer';
    btn.style.zIndex = '999999';
    btn.style.boxShadow = '0 2px 6px rgba(0,0,0,0.3)';
    btn.style.opacity = '0.85';
    btn.style.transition = 'opacity 0.2s ease';
    btn.onmouseenter = () => btn.style.opacity = '1';
    btn.onmouseleave = () => btn.style.opacity = '0.85';

    document.body.appendChild(btn);

    btn.onclick = () => {
        let host = location.hostname;
        let path = location.pathname;
        let search = location.search;
        let hash = location.hash;

        // Special rule: ScienceDirect — strip /abs/ and remove query/hash
        if (host.includes('sciencedirect.com')) {
            path = path.replace('/abs/', '/');
            search = '';
            hash = '';
        }

        // Convert dots to dashes for proxy domain
        const proxiedHost = host.replace(/\./g, '-') + PROXY_SUFFIX;

        const newUrl = location.protocol + '//' + proxiedHost + path + search + hash;

        window.location.href = newUrl;
    };
})();