Nozomi infinite scroll

try to take over the world!
当前为 2023-09-26 提交的版本，查看最新版本。
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// ==UserScript==
// @name         Nozomi infinite scroll
// @namespace    http://tampermonkey.net/
// @version      0.6
// @description  try to take over the world!
// @author       BicHD
// @match        https://*nozomi.la/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=nozomi.la
// @grant        none
// ==/UserScript==

var page_number = Number(window.location.pathname.replace(/.+-(\d+)\.html/,"$1")) || 1
const index = window.location.pathname.toLocaleLowerCase().includes("popular") ? "index-Popular" : "index"


async function get_jsons(post_id, post_ids) {
    let response = await fetch(`//j.nozomi.la/post/${post_id.length < 3 ? post_id : (post_id.toString().replace(/^(.*(..)(.))/, '$3/$2/$1'))}.json`, {
        method: 'GET',
        headers: {'origin': "https://nozomi.la"},})
    post_ids[post_id] = await response.json()
}

async function scrollHandler() {
    var post_ids = {}
    let scrollTop = (typeof pageYOffset != "undefined") ? pageYOffset : document.documentElement.scrollTop
    if (!(document.documentElement.scrollHeight - scrollTop - document.documentElement.clientHeight < 58 && document.querySelector('#loader-content.hidden'))) return
    document.getElementById('loader-content').classList.remove('hidden')
    page_number += 1

    let tns_per_page = 64

    let start_byte = (page_number - 1) * tns_per_page * 4;
    let end_byte = start_byte + tns_per_page * 4 - 1;
    let response = await fetch(`//n.nozomi.la/${index}.nozomi`, {
        method: 'GET',
        headers: {'Range': `bytes=${start_byte}-${end_byte}`,'origin': "https://nozomi.la"},
    })

    if (!response.ok) {
        document.getElementById('loader-content').classList.add('hidden')
    }
    let total_pages = Math.ceil((response.headers.get('Content-Length').replace(/^bytes \d+-\d+\//i, '') / 4) / tns_per_page);
    let view = new DataView(await response.arrayBuffer());
    let jsonPromises = []
    for (let i = 0; i < view.byteLength / 4; i++) {
        let post_id = view.getUint32(i * 4, false /* big-endian */)
        jsonPromises.push(get_jsons(post_id, post_ids))
    }

    await Promise.all(jsonPromises);

    Object.values(post_ids).forEach(post => {
        var c = document.querySelector(".content")
        if (c) {
            var s = c.clientWidth;

            var n = Math.ceil(6.0*s/1000.0);
            var w = ((s - (10.0*n + 10.0) - 0.5) / n) - 2.0;

            var divs = document.querySelectorAll(".thumbnail-div");
            for (var i = 0; i < divs.length; i++) {
                var div = divs[i];
                div.style.width=(w+"px");
                div.style.height=(w+"px");
            }
        }
        document.querySelector("#thumbnail-divs > .thumbnail-div:last-child").insertAdjacentHTML('afterend',`<div class="thumbnail-div" style="width: ${w}px; height: ${w}px;"><a href="/post/${post.postid}.html"><img class="tag-list-img" src="//tn.nozomi.la/${post.imageurls[0].dataid.replace(/^.*(..)(.)$/, '$2/$1/')}${post.imageurls[0].dataid}.${post.imageurls[0].type}.webp" title="" style=""></a></div>`);
    })

    document.getElementById('loader-content').classList.add('hidden')

}

document.addEventListener("scrollend", scrollHandler);