A line sticker downloader
// ==UserScript==
// @name line-sticker-downloader
// @namespace https://github.com/xingoxu/line-sticker-downloader
// @version 0.1.2
// @description A line sticker downloader
// @author xingoxu
// @match https://store.line.me/stickershop/product/*
// @grant none
// ==/UserScript==
(function($) {
'use strict';
var buttonHtml=`
<a class="MdBtn01 mdBtn01" id="line-sticker-downloader-button" style="
position: fixed;
z-index: 9999;
right: 30px;
bottom: 0;
">
<span class="mdBtn01Inner">
<span class="mdBtn01Txt">Download</span>
</span>
</a>
`;
(function initFileSaver() {
/* FileSaver.js
* A saveAs() FileSaver implementation.
* 1.3.2
* 2016-06-16 18:25:19
*
* By Eli Grey, http://eligrey.com
* License: MIT
* See https://github.com/eligrey/FileSaver.js/blob/master/LICENSE.md
*/
/*global self */
/*jslint bitwise: true, indent: 4, laxbreak: true, laxcomma: true, smarttabs: true, plusplus: true */
/*! @source http://purl.eligrey.com/github/FileSaver.js/blob/master/FileSaver.js */
var saveAs = saveAs || (function(view) {
"use strict";
// IE <10 is explicitly unsupported
if (typeof view === "undefined" || typeof navigator !== "undefined" && /MSIE [1-9]\./.test(navigator.userAgent)) {
return;
}
var
doc = view.document
// only get URL when necessary in case Blob.js hasn't overridden it yet
, get_URL = function() {
return view.URL || view.webkitURL || view;
}
, save_link = doc.createElementNS("http://www.w3.org/1999/xhtml", "a")
, can_use_save_link = "download" in save_link
, click = function(node) {
var event = new MouseEvent("click");
node.dispatchEvent(event);
}
, is_safari = /constructor/i.test(view.HTMLElement)
, is_chrome_ios =/CriOS\/[\d]+/.test(navigator.userAgent)
, throw_outside = function(ex) {
(view.setImmediate || view.setTimeout)(function() {
throw ex;
}, 0);
}
, force_saveable_type = "application/octet-stream"
// the Blob API is fundamentally broken as there is no "downloadfinished" event to subscribe to
, arbitrary_revoke_timeout = 1000 * 40 // in ms
, revoke = function(file) {
var revoker = function() {
if (typeof file === "string") { // file is an object URL
get_URL().revokeObjectURL(file);
} else { // file is a File
file.remove();
}
};
setTimeout(revoker, arbitrary_revoke_timeout);
}
, dispatch = function(filesaver, event_types, event) {
event_types = [].concat(event_types);
var i = event_types.length;
while (i--) {
var listener = filesaver["on" + event_types[i]];
if (typeof listener === "function") {
try {
listener.call(filesaver, event || filesaver);
} catch (ex) {
throw_outside(ex);
}
}
}
}
, auto_bom = function(blob) {
// prepend BOM for UTF-8 XML and text/* types (including HTML)
// note: your browser will automatically convert UTF-16 U+FEFF to EF BB BF
if (/^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(blob.type)) {
return new Blob([String.fromCharCode(0xFEFF), blob], {type: blob.type});
}
return blob;
}
, FileSaver = function(blob, name, no_auto_bom) {
if (!no_auto_bom) {
blob = auto_bom(blob);
}
// First try a.download, then web filesystem, then object URLs
var
filesaver = this
, type = blob.type
, force = type === force_saveable_type
, object_url
, dispatch_all = function() {
dispatch(filesaver, "writestart progress write writeend".split(" "));
}
// on any filesys errors revert to saving with object URLs
, fs_error = function() {
if ((is_chrome_ios || (force && is_safari)) && view.FileReader) {
// Safari doesn't allow downloading of blob urls
var reader = new FileReader();
reader.onloadend = function() {
var url = is_chrome_ios ? reader.result : reader.result.replace(/^data:[^;]*;/, 'data:attachment/file;');
var popup = view.open(url, '_blank');
if(!popup) view.location.href = url;
url=undefined; // release reference before dispatching
filesaver.readyState = filesaver.DONE;
dispatch_all();
};
reader.readAsDataURL(blob);
filesaver.readyState = filesaver.INIT;
return;
}
// don't create more object URLs than needed
if (!object_url) {
object_url = get_URL().createObjectURL(blob);
}
if (force) {
view.location.href = object_url;
} else {
var opened = view.open(object_url, "_blank");
if (!opened) {
// Apple does not allow window.open, see https://developer.apple.com/library/safari/documentation/Tools/Conceptual/SafariExtensionGuide/WorkingwithWindowsandTabs/WorkingwithWindowsandTabs.html
view.location.href = object_url;
}
}
filesaver.readyState = filesaver.DONE;
dispatch_all();
revoke(object_url);
}
;
filesaver.readyState = filesaver.INIT;
if (can_use_save_link) {
object_url = get_URL().createObjectURL(blob);
setTimeout(function() {
save_link.href = object_url;
save_link.download = name;
click(save_link);
dispatch_all();
revoke(object_url);
filesaver.readyState = filesaver.DONE;
});
return;
}
fs_error();
}
, FS_proto = FileSaver.prototype
, saveAs = function(blob, name, no_auto_bom) {
return new FileSaver(blob, name || blob.name || "download", no_auto_bom);
}
;
// IE 10+ (native saveAs)
if (typeof navigator !== "undefined" && navigator.msSaveOrOpenBlob) {
return function(blob, name, no_auto_bom) {
name = name || blob.name || "download";
if (!no_auto_bom) {
blob = auto_bom(blob);
}
return navigator.msSaveOrOpenBlob(blob, name);
};
}
FS_proto.abort = function(){};
FS_proto.readyState = FS_proto.INIT = 0;
FS_proto.WRITING = 1;
FS_proto.DONE = 2;
FS_proto.error =
FS_proto.onwritestart =
FS_proto.onprogress =
FS_proto.onwrite =
FS_proto.onabort =
FS_proto.onerror =
FS_proto.onwriteend =
null;
return saveAs;
}(
typeof self !== "undefined" && self
|| typeof window !== "undefined" && window
|| this.content
));
// `self` is undefined in Firefox for Android content script context
// while `this` is nsIContentFrameMessageManager
// with an attribute `content` that corresponds to the window
window.saveAs = saveAs;
})();
function getURL() {
console.log('Get URLing...');
var firstAndLastNode = Array.prototype.slice.call($('ul.FnSticker_animation_list_img li:first-child span,ul.FnSticker_animation_list_img li:last-child span'));
var imageURL = ""; //url前缀
firstAndLastNode.forEach(function(value, index, array) {
var backgroundImage = value.style.backgroundImage,
lastIndex = backgroundImage.lastIndexOf('/');
imageURL = backgroundImage.substring(backgroundImage.indexOf('http'), lastIndex + 1);
firstAndLastNode[index] = backgroundImage.substring(lastIndex + 1, backgroundImage.lastIndexOf('.'));
});
if(firstAndLastNode.length<=1){
console.log('No Matched Nodes...Exiting...');
return;
}
return {
first: Number.parseInt(firstAndLastNode[0]),
last: Number.parseInt(firstAndLastNode[1]),
url: imageURL
};
}
function download(url,callback) {
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
//this.response is what you're looking for
console.log('Got the Blob!');
callback(this.response);
}
};
xhr.open('GET', url);
xhr.responseType = 'blob';
xhr.send();
}
var urls=getURL();
if(!urls) {
return;
}
//is Downloading
var isDownloading = false;
//appendButton
$('body').prepend(buttonHtml);
//attachClickHandler
$('#line-sticker-downloader-button').click(function(event) {
if (isDownloading) return;
var $button = $(this);
//show Downloading...
isDownloading = true;
$button.find('.mdBtn01Txt').text('Downloading...');
(Promise.resolve(urls))
.then(function(ids) {
'use strict';
if (ids.first > ids.last) {
let temp = first;
first = last;
last = temp;
}
console.log('Downloading...');
var promiseArray=[];
for (var i = ids.first; i <= ids.last; i++) {
(function(i) {
var promise=(new Promise(function(resolve, reject) {
download(ids.url + i + '.png', function(blob) {
resolve(blob);
});
}))
.then(function(blob) {
console.log('Saving...');
saveAs(blob,i + '.png');
})
.catch(function(err) {
console.log(err);
});
promiseArray.push(promise);
})(i);
}
return Promise.all(promiseArray);
})
.then(function() {
$button.find('.mdBtn01Txt').text('Complete!');
setTimeout(function() {
$button.find('.mdBtn01Txt').text('Download');
}, 5000);
})
.catch(function(err) {
$button.find('.mdBtn01Txt').text('Error!');
console.log(err);
})
.then(function() {
isDownloading = false;
});
});
})(jQuery);