Sankaku Channel Access Rights

Access blocked images on Sankaku Channel

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Sankaku Channel Access Rights
// @namespace    http://tampermonkey.net/
// @version      20201018
// @description  Access blocked images on Sankaku Channel
// @author       Couchy
// @match        https://chan.sankakucomplex.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

function unblockThumbs(target) {
    const thumbs = target.querySelectorAll("span.thumb");
    for (const thumb of thumbs) {
        const link = thumb.firstElementChild;
        if (!link || link.href != "https://get.sankaku.plus/") {
            continue;
        }
        const id = thumb.id.substring(1);
        link.href = `/post/show/${id}`;
        link.removeAttribute("target");
        const oReq = new XMLHttpRequest();
        oReq.addEventListener("load", function(){
            //console.log(oReq.responseText);
            const 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);
            }

            const previewElem = thumb.children[0].children[0];
            //console.log(previewElem);
            previewElem.width = data.preview_width * scale;
            previewElem.height = data.preview_height * scale;
            previewElem.src = data.preview_url;

            let title = "";
            for (let tag of data.tags) {
                title += `${tag.name_en} `;
            }
            //TODO: other info in title
            previewElem.title = title;
        });
        oReq.open("GET", `https://capi-v2.sankakucomplex.com/posts?lang=en&page=1&limit=1&tags=id_range:${id}`);
        oReq.send();
    }
}

function unblockLarge(content) {
    content.innerHTML = "";
    const id = document.querySelector('meta[property~="og:title"][content]').content.slice(5);
    const oReq = new XMLHttpRequest();
        oReq.addEventListener("load", function(){
            //console.log(oReq.responseText);
            const 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;
            if (!data.file_type) { //Flash
                img = document.createElement("object");
                let embed = document.createElement("embed");
                embed.src = data.sample_url;
                embed.width = data.sample_width * scale;
                embed.height = data.sample_height * scale;
                img.appendChild(embed);
            }
            else if (data.file_type.startsWith("image")){
                img = document.createElement("img");
                img.src = data.sample_url;
            }
            else if (data.file_type.startsWith("video")) {
                img = document.createElement("video");
                img.controls = true;
                img.autoplay = false;
                img.src = data.sample_url;
            }

            if (img) {
                img.width = data.sample_width * scale;
                img.height = data.sample_height * scale;

                const container = document.createElement("div");
                container.setAttribute("style", "display: flex; flex-direction: column; padding-left: 1em;");

                if (data.width != data.sample_width || data.height != data.sample_height) {
                    const note = document.createElement("span");
                    note.textContent = "Showing resized - click for full size.";
                    container.appendChild(note);
                }

                const full = document.createElement("a");
                full.href = data.file_url;
                full.target = "_blank";
                full.appendChild(img);
                container.appendChild(full);

                content.appendChild(container);
            }
            else {
                console.log(`Unhandled file type: ${data.file_type}`);
            }
        });
        //console.log(`querying id: ${id}`);
        oReq.open("GET", `https://capi-v2.sankakucomplex.com/posts?lang=en&page=1&limit=1&tags=id_range:${id}`);
        oReq.send();
}

if (document.querySelector("span.thumb")) {
    unblockThumbs(document);
}
const list = document.getElementById("post-list");
if (list) {
    const callback = function (mutations){
        for (const mutation of mutations) {
            if (mutation.addedNodes.length > 0 && mutation.addedNodes[0].className == "content-page") {
                console.log(mutation.addedNodes[0]);
                unblockThumbs(mutation.addedNodes[0]);
            }
        }
    };
    const observer = new MutationObserver(callback);
    observer.observe(list, {childList: true, subtree: true});
}
const content = document.getElementById("post-content");
if (content && content.querySelector(".post-content-notification")) {
    unblockLarge(content);
}

// Fix Sankaku's shit
/*
var parts = /(.*) Rating:(\w)\w+ Score:(\S+) Size:(\d+)x(\d+) User:(.*)/.exec(title);
				o.tags = parts[1];
				o.rating = parts[2].toLowerCase();
				o.score = parseFloat(parts[3]);
				o.width = parseInt(parts[4]);
				o.height = parseInt(parts[5]);
				o.author = parts[6];
*/
const realExec = RegExp.prototype.exec;
RegExp.prototype.exec = function(str){
    let result = realExec.apply(this, [str]);
    if (!result && this.source.indexOf("Rating") > -1) {
        result = ["","","e","0","0","0",""];
    }
    return result;
};

})();