// ==UserScript==
// @name Publication Auto PDF
// @name:zh-CN SCI文献PDF直达
// @version 0.4.0
// @author sincostandx
// @description Automatically jumps to PDF when you visit a journal article abstract page. Also includes a utility to copy or download citation info.
// @description:zh-CN 访问SCI文献摘要页时自动跳转至PDF,附带文献摘录工具
// @include https://www.sciencedirect.com/science/article/*
// @include https://onlinelibrary.wiley.com/doi/*
// @include https://*.onlinelibrary.wiley.com/doi/*
// @include https://pubs.acs.org/doi/*
// @include https://www.tandfonline.com/doi/*
// @include https://www.beilstein-journals.org/*
// @include https://www.eurekaselect.com/*/article*
// @include https://pubs.rsc.org/en/Content/*
// @include https://link.springer.com/article*
// @include https://aip.scitation.org/doi/*
// @include https://www.nature.com/articles*
// @include https://*.sciencemag.org/content*
// @include https://journals.aps.org/*/abstract/10*
// @include https://www.nrcresearchpress.com/doi/10*
// @include https://iopscience.iop.org/article/10*
// @include https://www.cell.com/*/fulltext/*
// @include https://journals.lww.com/*
// @include https://*.biomedcentral.com/articles/*
// @include https://journals.sagepub.com/doi/*
// @include https://academic.oup.com/*/article/*
// @include https://www.karger.com/Article/*
// @include https://www.cambridge.org/core/journals/*/article/*
// @include https://www.annualreviews.org/doi/*
// @include https://www.jstage.jst.go.jp/article/*
// @include https://www.hindawi.com/journals/*
// @include https://www.cardiology.theclinics.com/article/*
// @include https://www.liebertpub.com/doi/*
// @include https://thorax.bmj.com/content/*
// @include https://journals.physiology.org/doi/*
// @include https://www.ahajournals.org/doi/*
// @include https://dl.acm.org/doi/*
// @include https://*.asm.org/content/*
// @include https://content.apa.org/*
// @include https://www.thelancet.com/journals/*/article/*
// @include https://jamanetwork.com/journals/*
// @include https://*.aacrjournals.org/content/*
// @include https://royalsocietypublishing.org/doi/*
// @include https://journals.plos.org/*/article*
// @include https://*.psychiatryonline.org/doi/*
// @include https://www.osapublishing.org/*/abstract.cfm*
// @include https://www.thieme-connect.de/products/ejournals/*
// @include https://journals.ametsoc.org/*/article/*
// @include https://www.frontiersin.org/articles/*
// @include https://www.worldscientific.com/doi/*
// @include https://www.nejm.org/doi/*
// @include https://ascopubs.org/doi/*
// @include https://www.jto.org/article/*
// @include https://www.jci.org/articles/*
// @grant GM.xmlHttpRequest
// @grant GM.getValue
// @grant GM.setValue
// @run-at document-start
// @namespace https://greasyfork.org/users/171198
// ==/UserScript==
"use strict";
var tit=null; //title
var doi=null;
var pdf=null; //pdf url
var sty=""; // citation text style
// attempt to extract DOI from URL
function getCrudeDOI() {
const l = location.pathname.match(/(^.+doi\/)([^/]+\/)?(10\.[^/]+\/[^/]+)/);
if (l === null) return [null, null];
const d = l[l.length-1];
return [d, l[1] + "pdf/" + d];
}
const [doiCrude, pdfPathname] = getCrudeDOI();
// determine if we need to redirect to PDF
let jump = sessionStorage.getItem("%" + doiCrude) === null &&
sessionStorage.getItem(location.pathname) === null;
// ID for clearInterval()
let intervalID;
// For sites in "shortcutSites" modify the URL directly.
// Otherwise, load PDF link from meta data or DOM.
if (doiCrude !== null) {
sessionStorage.setItem("%" + doiCrude, "1");
if (jump && location.pathname !== pdfPathname) {
const shortcutSites = ["acs", "aps", "wiley", "scitation", "tandfonline", "sagepub", "annualreviews", "liebertpub",
"physiology", "ahajournals", "acm", "royalsocietypublishing", "psychiatryonline", "thieme",
"worldscientific", "nejm", "ascopubs"];
const hostname = location.hostname;
if (shortcutSites.some(a=>hostname.includes(a))) {
location.pathname = pdfPathname;
}
} else {
intervalID = setInterval(checkLoaded, 100);
}
} else {
sessionStorage.setItem(location.pathname, "1");
intervalID = setInterval(checkLoaded, 100);
}
function checkLoaded() {
if (document.body !== null && document.body.innerHTML.length !== 0) {
clearInterval(intervalID);
loadMeta();
}
}
function loadMeta() {
const titmeta=["dc.title","citation_title","wkhealth_title"];
const doimeta=["citation_doi","dc.identifier","dc.source"];
const pdfmeta=["citation_pdf_url","wkhealth_pdf_url"];
const l=document.getElementsByTagName("meta");
for(let i=0; i<l.length; ++i) {
let n=l[i].getAttribute("name");
if (n===null) continue;
n=n.toLowerCase();
if (tit===null && titmeta.includes(n)) {
tit = l[i].getAttribute("content");
continue;
}
if (doi===null && doimeta.includes(n)) {
const d = l[i].getAttribute("content");
if (d.includes("10.")) {
if (d.includes("doi")) {
doi=d.slice(d.indexOf("10."));
} else {
doi=d;
}
continue;
}
}
if (pdf===null && pdfmeta.includes(n)) {
pdf = l[i].getAttribute("content");
}
}
if (jump && location.hostname.includes("sciencedirect")) {
if (loadElsevierPDF()) return;
}
console.log(doi);
console.log(pdf);
if (jump && pdf !== null && location.href !== pdf) {
location.href = pdf;
} else {
if (doi===null) {
doi = doiCrude;
if (doi===null) return;
}
if (tit===null) tit="Unknown Title";
if (pdf===null) pdf=pdfPathname;
toolbox(tit,doi,pdf);
}
}
// newbr, newinput, newtag are util functions to create toolbox elements.
function newbr(parent) {
parent.appendChild(document.createElement("br"));
}
function newinput(parent,type,value,onclick) {
const i = document.createElement("input");
i.type = type;
i.value = value;
if (onclick!==null) {
i.addEventListener("click", onclick, false);
}
i.className = "toolbox";
parent.appendChild(i);
return i;
}
function newtag(parent,tag,text) {
const i = document.createElement(tag);
if (text !== null) {
i.innerHTML = text;
}
i.className = "toolbox";
parent.appendChild(i);
return i;
}
function loadElsevierPDF() {
let json = null;
let pdflink = null;
while (json === null) {
json = document.querySelector('script[type="application/json"]');
}
try {
pdflink = JSON.parse(json.innerHTML).article.pdfDownload.linkToPdf;
} catch(e) {
return false;
}
const xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
try {
if (this.readyState == 4 && this.status == 200) {
const doc = new DOMParser().parseFromString(this.response,"text/html");
const href = doc.querySelector("#redirect-message > p > a").href;
sessionStorage.setItem(doi,href);
location.href = href;
}
}
catch(e) {
console.log(e);
location.href = pdflink;
}
}
xhr.open("GET", pdflink, true);
xhr.send();
return true;
}
function toolbox(tit,doi,pdf) {
const div = document.createElement("div");
div.style = `
z-index: 2147483647;
position: fixed;
right: 10px;
top: 50%;
transform: translate(0, -50%);
border: 2px groove black;
background: white;
box-shadow: 6px 6px 3px grey;`;
const sheet = document.createElement("style")
sheet.innerHTML = `
.toolbox {
font-size: small !important;
font-family: sans-serif !important;
margin-bottom: 4px !important;
margin-top: 0 !important;
display: initial !important;
line-height: initial !important;
}
input.toolbox, select.toolbox {
background-image: none !important;
width: auto;
max-height: none;
height: initial;
}
textarea.toolbox, input.toolbox[type=text] {
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
width: 11em;
padding: 0.5rem;
border-style: solid;
}
a.toolbox:hover {
color: #006db4;
}
a.toolbox {
color: #10147e;
}
input.toolbox[type=button]:hover {
background: #006db4;
}
input.toolbox[type=button] {
padding: 4px 8px;
background: #10147e;
color: white;
border-radius: 4px;
border: none;
cursor: pointer;
}
[tooltip]:before {
position: absolute;
opacity: 0;
}
[tooltip]:hover:before {
content: attr(tooltip);
opacity: 1;
color: black;
background: white;
padding: 2px;
border: 1px groove black;
white-space: nowrap;
overflow: hidden;
right: 0;
margin-top: -25pt;
}
h2.toolbox {
font-size: large !important;
}
`;
div.appendChild(sheet);
// Hide button
const hide_btn_parent = newtag(div,"div",null);
hide_btn_parent.style = "display: flex !important; justify-content: flex-end; padding-right: 10px;";
const hide_btn = newtag(hide_btn_parent,"a","✖");
hide_btn.style = "cursor: pointer; font-size: large !important; text-decoration: none;";
hide_btn.addEventListener("click", function(){div.remove();}, false);
// DOI textbox and copy button
const txt_doi = newinput(div,"text",doi,null);
newbr(div);
newinput(div,"button","Copy",function(){txt_doi.select();document.execCommand("Copy");});
newbr(div);newbr(div);
// info textbox and copy button
const info = tit+"\t"+doi;
const txt_inf = newinput(div,"text",info,null);
newbr(div);
newinput(div,"button","Copy",function(){txt_inf.select();document.execCommand("Copy");});
newbr(div);newbr(div);
// bibtex button
const txt_bib = newtag(div,"textarea",null);
txt_bib.style = "resize: none; display: none !important;";
newbr(div);
const btn_bib = newinput(div,"button","Copy BibTeX",loadBib);
newbr(div);
function loadBib() {
btn_bib.disabled = true;
btn_bib.value = "Loading";
GM.xmlHttpRequest({
method: "GET",
url: "https://dx.doi.org/" + doi,
headers: {
"Accept": "application/x-bibtex"
},
onload: function(response) {
if (response.readyState == 4 && response.status == 200) {
const bib = response.responseText;
txt_bib.value = bib;
txt_bib.style.display = "";
txt_bib.select();
document.execCommand("Copy");
btn_bib.value = "Copy BibTeX";
} else {
btn_bib.value = "Reload BibTeX";
}
btn_bib.disabled = false;
},
onerror: function(response) {
btn_bib.value = "Reload BibTeX";
btn_bib.disabled = false;
}
});
}
// Text button
const btn_txt = newinput(div,"button","Copy Text",loadTxt);
function loadTxt() {
if (sty==="") {
setstyle();
return;
}
btn_txt.disabled = true;
btn_txt.value = "Loading";
GM.xmlHttpRequest({
method: "GET",
url: "https://dx.doi.org/" + doi,
headers: {
"Accept": "text/x-bibliography; style="+sty
},
onload: function(response) {
if (response.readyState == 4 && response.status == 200) {
const bib = response.responseText;
txt_bib.value = bib;
txt_bib.style.display = "";
txt_bib.select();
document.execCommand("Copy");
btn_txt.value = "Copy Text";
} else {
btn_txt.value = "Reload Text";
}
btn_txt.disabled = false;
},
onerror: function(response) {
btn_txt.value = "Reload Text";
btn_txt.disabled = false;
}
});
}
// text style link
const stylink = newtag(div,"a","Style");
stylink.addEventListener("click",setstyle,false);
stylink.style.cursor = "pointer";
newbr(div);
function setstyle() {
const div = document.createElement("div");
div.style = `
z-index: 2147483647;
position: fixed;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
border: 2px groove black;
background: white;
padding: 20px;
box-shadow: 10px 10px 5px grey;`;
newtag(div,"h2","Choose a citation style for text references:");
const sel = newtag(div,"select",null);
sel.size = 15;
sel.style.minWidth = "600px";
newbr(div);
newtag(div,"p","This citation style will be saved as default.").style = "margin-top: 5px !important";
newbr(div);
const btns = newtag(div,"div",null);
btns.style = "display: block !important; text-align: center;";
// OK button
newinput(btns,"button","OK",function() {
sty = sel.value;
GM.setValue("sty",sty);
document.body.removeChild(div);
loadTxt();
});
// cancel button
newinput(btns,"button","Cancel",function(){document.body.removeChild(div);}).style.marginLeft = "1em";
// load styles
GM.xmlHttpRequest({
method: "GET",
url: "https://citation.crosscite.org/styles",
onload: function(response) {
if (response.readyState == 4 && response.status == 200) {
const l = JSON.parse(response.responseText);
for (let i=0; i<l.length; i++) {
const x = document.createElement("option");
x.text = l[i];
sel.add(x);
}
if (sty!=="") {
sel.value = sty;
} else {
sel.selectedIndex = 0;
}
} else {
alert("Cannot load style list.");
document.body.removeChild(div);
}
},
onerror: function(response) {
alert("Cannot load style list.");
document.body.removeChild(div);
}
});
document.body.appendChild(div);
}
// RIS link
const rislink = newtag(div,"a","Download RIS");
rislink.addEventListener("click",loadris);
rislink.style.cursor = "pointer";
function loadris() {
rislink.removeEventListener("click",loadris);
GM.xmlHttpRequest({
method: "GET",
url: "https://dx.doi.org/" + doi,
headers: {
"Accept": "application/x-research-info-systems"
},
onload: function(response) {
if (response.readyState == 4 && response.status == 200) {
const ris = response.responseText;
const blob = new Blob([ris], {type: "octet/stream"});
const url = URL.createObjectURL(blob);
rislink.href = url;
rislink.download = doi.replace("/","@")+".ris";
rislink.click();
} else {
alert("Unable to download RIS.");
rislink.addEventListener("click",loadris);
}
btn_txt.disabled = false;
},
onerror: function(response) {
alert("Unable to download RIS.");
rislink.addEventListener("click",loadris);
}
});
}
newbr(div);newbr(div);
// PDF link
if (pdf === null && location.hostname.includes("sciencedirect")) {
pdf = sessionStorage.getItem(doi);
if (pdf === null) {
const pdflink = newtag(div,"a","PDF");
pdflink.addEventListener("click",()=>{if (!loadElsevierPDF()) alert("Failed to load PDF link");});
pdflink.style.cursor = "pointer";
newbr(div);newbr(div);
}
}
if (pdf !== null) {
const pdflink = newtag(div,"a","PDF");
pdflink.href = pdf;
newbr(div);newbr(div);
}
// Sci-Hub link
const scihubURL = "https://sci-hub.st/";
const scihublink = newtag(div,"a","Sci-Hub");
if (doi !== null) {
scihublink.href = scihubURL + doi;
} else {
scihublink.href = scihubURL + location.href;
}
newbr(div);newbr(div);
document.body.appendChild(div);
GM.getValue("sty","").then(function(v){sty=v;stylink.setAttribute("tooltip",v==="" ? "You have not set a reference style" : "Current style: "+v);});
}