ABCAM,COM PII BYPASS

ABCAM PDF BYPASS

// ==UserScript==
// @name         Abcam Adaptive Direct PDF Redirector
// @namespace    http://tampermonkey.net/
// @version      1.269420
// @description  Adaptive mechanism to bypass Abcam tracking pages by testing candidate PDF URLs based on heuristics, then redirecting to the working link. Also cleans direct PDF URLs.
// @match        *://go.myabcam.com/*
// @match        *://docs.abcam.com/*
// @grant        GM_xmlhttpRequest
// @connect      docs.abcam.com
// ==/UserScript==

(function() {
    'use strict';

    const host = window.location.hostname;
    const currentUrl = new URL(window.location.href);

    // Function to perform a HEAD request to check if a URL exists.
    function checkUrl(url) {
        return new Promise((resolve) => {
            GM_xmlhttpRequest({
                method: "HEAD",
                url: url,
                onload: function(response) {
                    // Consider HTTP 200 as a valid response.
                    if (response.status === 200) {
                        resolve(true);
                    } else {
                        resolve(false);
                    }
                },
                onerror: function() {
                    resolve(false);
                }
            });
        });
    }

    // Adaptive mechanism for go.myabcam.com pages.
    async function processGoMyAbcam() {
        // Extract the slug from the pathname (e.g. "necroptosis-analysis-guide")
        let slug = currentUrl.pathname.replace(/^\/+|\/+$/g, '');
        if (!slug) {
            return;
        }

        // Build a list of candidate URLs.
        const baseUrl = "https://docs.abcam.com/pdf/";
        let candidates = [];

        // Candidate 1: Assume in "general" folder with the slug as filename.
        candidates.push(baseUrl + "general/" + slug + ".pdf");

        // If the slug contains "analysis", try the "kits" folder with "-analysis" removed.
        if (slug.toLowerCase().includes("analysis")) {
            let modifiedSlug = slug.replace(/-analysis/gi, "");
            candidates.push(baseUrl + "kits/" + modifiedSlug + ".pdf");
        }

        // If the slug contains "guide", try stripping "-guide" and check in "general"
        if (slug.toLowerCase().includes("guide")) {
            let modifiedSlug = slug.replace(/-guide/gi, "");
            candidates.push(baseUrl + "general/" + modifiedSlug + ".pdf");
        }

        // Remove duplicate candidates.
        candidates = Array.from(new Set(candidates));

        console.log("Candidate URLs:", candidates);

        // Try each candidate sequentially until one exists.
        for (let candidate of candidates) {
            let exists = await checkUrl(candidate);
            if (exists) {
                console.log("Redirecting to:", candidate);
                window.location.replace(candidate);
                return;
            }
        }
        console.log("No valid candidate URL found. No redirection performed.");
    }

    // Clean up docs.abcam.com URLs by stripping query parameters.
    function processDocsAbcam() {
        if (currentUrl.pathname.endsWith(".pdf") && currentUrl.search) {
            let cleanUrl = currentUrl.origin + currentUrl.pathname;
            console.log("Stripping tracking parameters. Clean URL:", cleanUrl);
            window.history.replaceState({}, document.title, cleanUrl);
        }
    }

    // Determine which domain we're on and process accordingly.
    if (host.includes("go.myabcam.com")) {
        processGoMyAbcam();
    } else if (host.includes("docs.abcam.com")) {
        processDocsAbcam();
    }
})();