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Sankaku Channel Access Rights

Access blocked images on Sankaku Channel

当前为 2020-10-12 提交的版本，查看 最新版本。

// ==UserScript==
// @name         Sankaku Channel Access Rights
// @namespace    http://tampermonkey.net/
// @version      20201012
// @description  Access blocked images on Sankaku Channel
// @author       Couchy
// @match        https://chan.sankakucomplex.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

function unblockThumbs(target) {
    let blocked = [];
    let thumbs = target.querySelectorAll("span.thumb");
    for (let i = 0; i < thumbs.length; i++) {
        let link = thumbs[i].firstElementChild;
        if (link && link.href == "https://get.sankaku.plus/") {
            let id = thumbs[i].id.replace("p","");
            link.href = "/post/show/" + id;
            blocked.push(id);
        }
    }
    for (let i = 0; i < blocked.length; i++) {
        let oReq = new XMLHttpRequest();
        oReq.addEventListener("load", function(){
            //console.log(oReq.responseText);
            let data = JSON.parse(oReq.responseText)[0];
            console.log(data);
            let scale = 1;
            if (data.preview_width > 150 || data.preview_height > 150) {
                scale = 150 / Math.max(data.preview_width, data.preview_height);
            }
            let img = document.getElementById("p" + blocked[i]).getElementsByTagName("img")[0];
            img.width = data.preview_width * scale;
            img.height = data.preview_height * scale;
            img.src = data.preview_url;

            let title = "";
            for (let j = 0; j < data.tags.length; j++) {
                title += data.tags[j].name_en + " ";
            }
            //TODO: other info in title
            img.title = title;
        });
        oReq.open("GET", "https://capi-v2.sankakucomplex.com/posts?lang=en&page=1&limit=1&tags=id_range:" + blocked[i]);
        oReq.send();
    }
}

function unblockLarge(content) {
    content.innerHTML = "";
    let id = document.getElementById("post-view").firstElementChild.textContent;
    let oReq = new XMLHttpRequest();
        oReq.addEventListener("load", function(){
            //console.log(oReq.responseText);
            let data = JSON.parse(oReq.responseText)[0];
            console.log(data);
            let scale = 1;
            if (data.sample_width > 1000 || data.sample_height > 1000) {
                scale = 1000 / Math.max(data.sample_width, data.sample_height);
            }
            let img = document.createElement("img");
            img.width = data.sample_width * scale;
            img.height = data.sample_height * scale;
            img.src = data.sample_url;

            let full = document.createElement("a");
            full.href = data.file_url;
            full.target = "_blank";
            full.appendChild(img);
            content.appendChild(full);
        });
        oReq.open("GET", "https://capi-v2.sankakucomplex.com/posts?lang=en&page=1&limit=1&tags=id_range:" + id);
        oReq.send();
}

let content = document.getElementById("post-content");
if (content && content.innerHTML.indexOf("access rights") > 0) {
    unblockLarge(content);
}
if (document.querySelector("span.thumb")) {
    unblockThumbs(document);
}

})();