Scientific article PDF redirection

README.md

To use:

1. Install the Tampermonkey (or GreaseMonkey) browser plugin
2. Open the browser plugin and use the "+" button to add a script
3. Copy & paste the contents of wiley_pdf.js and elsevier.js to separate scripts
4. On the "settings" tab, enter the "Raw" URL in the "Updates→Update URL" field

For a more aggressive solution, see the Publication Auto-PDF scripts.

cup_pdf.js

// ==UserScript==
// @name         CUP PDF linker
// @namespace    https://gist.github.com/ms609/beaed274ec473fbe0f929d1ea88e4158
// @version      0.1
// @description  Go directly to the PDF
// @author       Martin R. Smith
// @run-at       document-end
// @match        https://www.cambridge.org/core/journals/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=cambridge.org
// @grant        none
// ==/UserScript==

// Status: Link is created but disappears after 1s or so.  Can't work out how to make it stick...

(function() {
    'use strict';

    function AddLink () {

        let id = document.location.href.match(/[\dA-Z]{20,}/)[0];
        var btn = document.getElementById("save-pdf-dropdown");
        let pdfURL = "https://www.cambridge.org/core/services/aop-cambridge-core/content/view/" + id;
        var newA = document.createElement("a");
        newA.href = pdfURL;
        newA.id = "added-link";
        newA.innerHTML = "PDF (direct link)";
        let position = document.getElementById("save-pdf-dropdown");
        position.parentElement.insertBefore(newA, position);
        console.log(id);

    }
    if (document.readyState == "complete" || document.readyState == "loaded" || document.readyState == "interactive") {
        AddLink();
    } else {
        document.addEventListener("DOMContentLoaded", function(event) {
            AddLink();
        });
    }
})();

elsevier_pdf.js

// ==UserScript==
// @name         ScienceDirect pdf
// @namespace    https://gist.github.com/ms609/beaed274ec473fbe0f929d1ea88e4158
// @version      0.1
// @description  Go directly to the Elsevier PDF, not the "epdf"
// @author       Martin R. Smith
// @match        https://www.sciencedirect.com/*
// @match        https://reader.elsevier.com/reader/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=sciencedirect.com
// @run-at       document-start
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    function PDFURL (id) {
        return "https://www.sciencedirect.com/science/article/pii/" + id + "/pdfft";
    }

    function ReplaceHrefs() {
        var anchors = document.getElementsByTagName("a");
        for (var i = 0, len = anchors.length; i < len; i++) {
            if (anchors[i].getAttribute("role") == "button") {
                console.log(anchors[i])
                console.log(anchors[i].href)
            }
            if (anchors[i].href != "") {
                var match = anchors[i].href.match(/\/science\/article\/pii\/(S\d+X?)\/pdfft/);
                if (match) {
                    anchors[i].href = PDFURL(match[1]);
                }
            } else {
                // Doesn't quite work - suggestions welcome!
                anchors[i].href = PDFURL(document.location.href.match(/S\d+X?/)[0]);
                var newA = document.createElement("a");
                newA.href = PDFURL(document.location.href.match(/S\d+/)[0]);
                newA.innerHTML = "PDF (direct)";
                document.insertBefore(newA, anchors[i]);
            }
        }
    }

    // https://www.sciencedirect.com/sdfe/reader/pii/S0031018221004983/pdf
    let inURL = document.location.href.match(/https:\/\/reader\.elsevier\.com\/reader\/sd\/pii\/(S[\dX]+)/);
    if (inURL) {
        document.location.href = PDFURL(inURL[1]);
    }

    if (document.readyState == "complete" || document.readyState == "loaded" || document.readyState == "interactive") {
        ReplaceHrefs();
    } else {
        document.addEventListener("DOMContentLoaded", function(event) {
            ReplaceHrefs();
        });
    }
})();

epdf.js

// ==UserScript==
// @name         epdf -> pdf
// @namespace    https://gist.github.com/ms609/beaed274ec473fbe0f929d1ea88e4158
// @version      0.2.1
// @description  Go directly to the PDF, not the "epdf"
// @author       Martin R. Smith
// @match        https://www.journals.uchicago.edu/doi/*
// @match        https://www.lyellcollection.org/doi/*
// @match        https://onlinelibrary.wiley.com/*
// @match        https://aslopubs.onlinelibrary.wiley.com/*
// @match        https://besjournals.onlinelibrary.wiley.com/*
// @match        https://www.idunn.no/doi/*
// @match        https://pnas.org/doi/*
// @match        https://www.pnas.org/doi/*
// @match        https://www-pnas-org.ezphost.dur.ac.uk/doi/*
// @match        https://royalsocietypublishing.org/doi/*
// @match        https://www.science.org/doi/*
// @match        https://www.tandfonline.com/doi/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=wiley.com
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    if (document.location.href.match("/epdf/")) {
        document.location.href = document.location.href.replace("/epdf/", "/pdf/");
    } else if (document.location.href.match("/epub/")) {
        document.location.href = document.location.href.replace("/epub/", "/pdf/");
    } else {
        var anchors = document.getElementsByTagName("a");
        for (var i = 0, len = anchors.length; i < len; i++) {
            anchors[i].href = anchors[i].href.replace("/epdf/", "/pdf/");
            anchors[i].href = anchors[i].href.replace("/epub/", "/pdf/");
        }
    }
})();

sci-hub.js

// ==UserScript==
// @name         Sci-hub frame remover
// @namespace    https://gist.github.com/ms609/beaed274ec473fbe0f929d1ea88e4158
// @version      0.1
// @description  Go straight to PDF
// @author       Martin R. Smith
// @match        https://sci-hub.yncjkj.com/10.*
// @icon         data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant        none
// @run-at       document-idle
// ==/UserScript==

function MaximizeFrame () {
    let pdfFrame = document.getElementById("pdf");
    if (pdfFrame) {
        document.location.href = pdfFrame.src.replace(/#.*$/, "");
    } else {
        window.addEventListener("load", MaximizeFrame, false);
    }
}

(function() {
    "use strict";
    MaximizeFrame();
})();