Adds A Quick Download Button
Per
// ==UserScript==
// @name E621 Quick Download
// @namespace http://tampermonkey.net/
// @version 0.1.3
// @description Adds A Quick Download Button
// @author rafa_br34#9060
// @match https://e621.net/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=e621.net
// @grant GM.xmlHttpRequest
// @license GPL-2.0
// ==/UserScript==
(async function () {
const E621_Images = "https://static1.e621.net/data"
var g_DataElement = undefined
var g_Buttons = []
var g_WriteFileQueue = []
var g_TotalDownloads = 0
var g_DownloadQueue = 0
function Sleep(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
function RequestWriteFile(Data, FileName) {
var TempElement = document.createElement("a");
var URL = window.URL.createObjectURL(Data/*new Blob([Data], "octet/stream")*/)
TempElement.setAttribute("href", URL);
TempElement.setAttribute("download", FileName);
document.body.appendChild(TempElement);
TempElement.click();
document.body.removeChild(TempElement);
window.URL.revokeObjectURL(URL)
}
async function DownloadImage(ImageHashMD5, FileFormat, SelfId) {
var FirstByte = ImageHashMD5.substr(0, 2)
var SecondByte = ImageHashMD5.substr(2, 2)
// CDN/FirstByte/SecondByte/ImageHash.FileFormat
var Url = `${E621_Images}/${FirstByte}/${SecondByte}/${ImageHashMD5}.${FileFormat}`
var Done = false
var IsDownloading = false
var State = [false]
g_DownloadQueue++;
while (!Done) {
g_Buttons[SelfId][1].innerHTML = "Downloading..."
IsDownloading = true
try {
GM.xmlHttpRequest({
binary: true,
method: "GET",
responseType: "blob",
url: Url,
onload: async function (Response) {
//console.log(Response)
try {
if (Response.status != 200) {
g_Buttons[SelfId][1].innerHTML = "Failed(Http), Retrying..."
}
else {
g_Buttons[SelfId][1].innerHTML = "Done!"
State = [true, `${ImageHashMD5}.${FileFormat}`, Response.response]
}
}
catch (Exception) {
console.log(Exception)
g_Buttons[SelfId][1].innerHTML = "Failed(Exception), Retrying..."
}
IsDownloading = false
},
onerror: async function (Response) {
g_Buttons[SelfId][1].innerHTML = "Failed(Error), Retrying..."
IsDownloading = false
},
onabort: async function (Response) {
g_Buttons[SelfId][1].innerHTML = "Failed(Aborted), Retrying..."
IsDownloading = false
}
});
}
catch (Exception) {
//console.log(Exception)
IsDownloading = false
}
while (IsDownloading) {
await Sleep(10)
}
if (State[0]) {
Done = true
State.splice(0, 1)
g_WriteFileQueue.push(State)
g_TotalDownloads++
g_Buttons[SelfId][1].innerHTML = "Done"
await Sleep(1000)
g_Buttons[SelfId][1].innerHTML = "Download"
}
else {
await Sleep(3000)
}
}
g_DownloadQueue--;
}
var RootDiv = document.createElement("div")
var Posts = document.getElementById("posts")
Posts.insertBefore(RootDiv, Posts.firstChild)
var DownloadAllButton = document.createElement("button")
RootDiv.appendChild(DownloadAllButton)
DownloadAllButton.innerHTML = "Download All In Page"
DownloadAllButton.setAttribute("style", "user-select: auto; border-radius: 0px; background-color: rgb(123, 37, 71); color: #ffffff;")
DownloadAllButton.addEventListener("click",
async () => {
for (Button of g_Buttons) {
Button[1].click()
await Sleep(100);
}
}
)
var g_DataElement = document.createElement("div")
RootDiv.appendChild(g_DataElement);
var Runner = async function () {
while (true) {
if (g_WriteFileQueue.length > 0) {
var Data = g_WriteFileQueue.pop()
RequestWriteFile(Data[1], Data[0])
}
await Sleep(100);
}
}
Runner();
while (true) {
for (var Object of document.getElementsByTagName("article")) {
var NewButton = null
if (g_Buttons.find((Button) => { return Button[0] == Object })) {
continue
}
var SplittedUrl = Object.getAttribute("data-file-url").split("/")
const ImageHash = (SplittedUrl[SplittedUrl.length - 1]).split(".")[0];
const FileFormat = Object.getAttribute("data-file-ext");
const TableSize = g_Buttons.length
console.log("Hash ", ImageHash, " FileFormat ", FileFormat)
if (!GM || !GM.xmlHttpRequest) {
NewButton = document.createElement("a")
NewButton.setAttribute("href", `${E621_Images}/${ImageHash.substr(0, 2)}/${ImageHash.substr(2, 2)}/${ImageHash}.${FileFormat}`)
NewButton.setAttribute("download", `${ImageHash}.${FileFormat}`)
NewButton.setAttribute("target", "_blank")
}
else {
NewButton = document.createElement("button")
NewButton.addEventListener("click", () => { DownloadImage(ImageHash, FileFormat, TableSize) })
NewButton.setAttribute("style", "user-select: auto; border-radius: 0px; background-color: rgb(37, 71, 123); color: #ffffff;")
}
NewButton.innerHTML = "Download"
Object.appendChild(NewButton)
g_Buttons.push([Object, NewButton])
}
g_DataElement.innerHTML = ` Posts: ${g_Buttons.length} Total Downloads: ${g_TotalDownloads} Download Queue: ${g_DownloadQueue} Write Queue: ${g_WriteFileQueue.length}`
await Sleep(1000);
}
})();