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Help with the return of Kindle Unlimited loans in Amazon.co.jp.
// ==UserScript==
// @name Helper to return of Kindle Unlimited loans
// @name:ja Kindle Unlimited 返却支援
// @namespace https://furyutei.work
// @license MIT
// @version 0.1.1
// @description Help with the return of Kindle Unlimited loans in Amazon.co.jp.
// @description:ja Amazon.co.jp の Kindle Unlimited の返却を支援
// @author furyu
// @match https://www.amazon.co.jp/*
// @grant none
// @compatible chrome
// @compatible firefox
// @supportURL https://github.com/furyutei/amzKindleUnlimitedHelper/issues
// @contributionURL https://memo.furyutei.work/about#%E6%B0%97%E3%81%AB%E5%85%A5%E3%81%A3%E3%81%9F%E5%BD%B9%E3%81%AB%E7%AB%8B%E3%81%A3%E3%81%9F%E3%81%AE%E3%81%8A%E6%B0%97%E6%8C%81%E3%81%A1%E3%81%AF%E3%82%AE%E3%83%95%E3%83%88%E5%88%B8%E3%81%A7
// ==/UserScript==
( async () => {
'use strict';
const
SCRIPT_NAME = 'amzKindleUnlimitedHelper',
DEBUG = false,
CSS_STYLE_CLASS = SCRIPT_NAME + '-css-rule',
TIME_INTERVAL_TO_CONFIRM_RETURN_FIRST = 5000, // 初回返却確認までの遅延時間(ミリ秒)
TIME_INTERVAL_TO_CONFIRM_RETURN = 1000, // 返却確認間隔(ミリ秒)
MAX_RETURN_CONFIRM_RETRY_NUMBER = 50, // 最大返却再確認回数
get_log_timestamp = () => {
return new Date().toISOString();
},
log_debug = ( ... args ) => {
if ( ! DEBUG ) {
return;
}
console.debug( '%c' + '[' + SCRIPT_NAME + '] ' + get_log_timestamp(), 'color: gray;', ... args );
},
log = ( ... args ) => {
console.log( '%c' + '[' + SCRIPT_NAME + '] ' + + get_log_timestamp(), 'color: teal;', ... args );
},
log_info = ( ... args ) => {
console.info( '%c' + '[' + SCRIPT_NAME + '] ' + get_log_timestamp(), 'color: darkslateblue;', ... args );
},
log_error = ( ... args ) => {
console.error( '%c' + '[' + SCRIPT_NAME + '] ' + get_log_timestamp(), 'color: purple;', ... args );
},
get_csrf_token = ( doc ) => {
if ( ! doc ) {
doc = document;
}
return Array.from( doc.querySelectorAll( 'script' ) ).map( script => script.textContent.match( /\s*csrfToken\s*=\s*"(.*?)"/i ) && RegExp.$1 ).filter( csrfToken => csrfToken )[ 0 ];
},
PAGE_TYPE = {
unknown : undefined,
my_contents : 'My Contents',
loaned_book : 'Loaned Book',
orderd_product : 'Orderd Product',
},
CURRENT_PAGE_INFO = await ( async () => {
if ( /^\/(?:hz\/mycd\/myx|mn\/dcw\/myx\.html)/.test( new URL( location.href ).pathname ) ) {
return {
type : PAGE_TYPE.my_contents,
csrf_token : get_csrf_token(),
};
}
let ebooksInstantOrderUpdate = document.querySelector( '#ebooksInstantOrderUpdate' );
if ( ! ebooksInstantOrderUpdate ) {
return { type : PAGE_TYPE.unknown };
}
let asin = ( ( document.querySelector('link[rel="canonical"]') || {} ).href || '' ).match( /\/dp\/([^/]+)/ ) && RegExp.$1,
my_contents_url = ( ebooksInstantOrderUpdate.parentNode.querySelector( 'a.a-link-normal[href*="/mn/dcw/myx.html"]' ) || {} ).href;
if ( ! my_contents_url ) {
return { type : PAGE_TYPE.orderd_product, asin };
}
let csrf_token = await fetch( my_contents_url.replace( /#.*$/, '' ), {
method : 'GET',
mode : 'cors',
credentials : 'include',
} )
.then( response => {
if ( ! response.ok ) {
throw new Error( 'Network response was not ok' );
}
return response.text();
} )
.then( html => get_csrf_token( ( new DOMParser() ).parseFromString( html, 'text/html' ) ) )
.catch( error => {
log_error( 'fetch() error: url=', my_contents_url, error );
} );
return {
type : PAGE_TYPE.loaned_book,
asin,
csrf_token,
};
} )() || {};
log_debug( 'CURRENT_PAGE_INFO=', CURRENT_PAGE_INFO );
switch ( CURRENT_PAGE_INFO.type ) {
case PAGE_TYPE.my_contents :
case PAGE_TYPE.loaned_book :
if ( ! CURRENT_PAGE_INFO.csrf_token ) {
log_error( 'CSRF token was not found' );
return;
}
break;
default:
log_debug( 'This page is not supported' );
return;
}
const
wait = async ( wait_msec ) => await new Promise( resolve => setTimeout( resolve, ( ( ! Number.isInteger( wait_msec ) ) || wait_msec <= 0 ) ? 1 : wait_msec ) ),
insert_css_rule = () => {
const
loading_mask_class = SCRIPT_NAME + '-loading-mask',
css_rule_text = `
.${loading_mask_class} {
position : fixed;
top : 0;
left : 0;
z-index : 10000;
width : 100%;
height : 100%;
background : black;
opacity : 0.5;
}
.${loading_mask_class} .loading {
position : absolute;
top : 0;
right : 0;
bottom : 0;
left : 0;
margin : auto;
width : 100px;
height : 100px;
color : #F3A847;
}
.${loading_mask_class} .loading svg {
animation: ${SCRIPT_NAME}_now_loading 1.5s linear infinite;
}
@keyframes ${SCRIPT_NAME}_now_loading {
0% {transform: rotate(0deg);}
100% {transform: rotate(360deg);}
}
`;
let css_style = document.querySelector( '.' + CSS_STYLE_CLASS );
if ( css_style ) css_style.remove();
css_style = document.createElement( 'style' );
css_style.classList.add( CSS_STYLE_CLASS );
css_style.textContent = css_rule_text;
document.querySelector( 'head' ).appendChild( css_style );
},
loading_mask = ( () => {
const
loading_icon_svg = '<svg version="1.1" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><circle cx="12" cy="12" fill="none" r="10" stroke-width="4" style="stroke: currentColor; opacity: 0.4;"></circle><path d="M 12,2 a 10 10 -90 0 1 9,5.6" fill="none" stroke="currentColor" stroke-width="4" />',
loading_mask = document.createElement( 'div' );
loading_mask.className = SCRIPT_NAME + '-loading-mask';
loading_mask.insertAdjacentHTML( 'beforeend', '<div class="loading">' + loading_icon_svg + '</div>' );
loading_mask.style.display = 'none';
document.body.appendChild( loading_mask );
return loading_mask;
} )(),
show_loading_mask = () => {loading_mask.style.display = 'block';},
hide_loading_mask = () => {loading_mask.style.display = 'none';},
get_loaned_info = async () => {
let loaned_info = await fetch( 'https://www.amazon.co.jp/hz/mycd/ajax', {
method : 'POST',
mode : 'cors',
credentials : 'include',
headers : {
'Content-Type': 'application/x-www-form-urlencoded',
},
body : ( () => {
let search_params = new URLSearchParams();
search_params.append( 'csrfToken', CURRENT_PAGE_INFO.csrf_token );
search_params.append( 'data', JSON.stringify( {
param : {
OwnershipData : {
sortOrder : 'DESCENDING',
sortIndex : 'DATE',
startIndex : 0,
batchSize : 100, // default: 18 / ～725あたりで不安定になる（GET https://www.amazon.co.jp/500 404）
contentType : 'ALL',
totalContentCount : 0,
itemStatus : [ 'Active', ],
originType : [ 'ku', ],
},
},
} ) );
return search_params;
} )(),
} )
.then( response => {
if ( ! response.ok ) {
throw new Error( 'Network response was not ok' );
}
return response.json();
} )
.catch( error => {
log_error( 'get_loaned_info(): fetch() error:', error );
} ) || {};
return loaned_info;
},
get_loaned_book_info = ( asin, loaned_info ) => {
return ( ( ( loaned_info || {} ).OwnershipData || {} ).items || [] ).filter( book_info => book_info.asin == asin )[ 0 ];
},
return_loaned_book = async ( asin, loaned_info ) => {
if ( ! loaned_info ) {
loaned_info = await get_loaned_info();
}
log_debug( 'loaned_info=', loaned_info );
let loaned_book_info = get_loaned_book_info( asin, loaned_info );
log_debug( 'loaned_book_info=', loaned_book_info );
if ( ! loaned_book_info ) {
return null;
}
let result = await fetch( 'https://www.amazon.co.jp/hz/mycd/ajax', {
method : 'POST',
mode : 'cors',
credentials : 'include',
headers : {
'Content-Type': 'application/x-www-form-urlencoded',
},
body : ( () => {
let search_params = new URLSearchParams();
search_params.append( 'csrfToken', CURRENT_PAGE_INFO.csrf_token );
search_params.append( 'data', JSON.stringify( {
param : {
ReturnKULoan : {
returnLoanID : loaned_book_info.lendingId,
},
},
} ) );
return search_params;
} )(),
} )
.then( response => {
if ( ! response.ok ) {
throw new Error( 'Network response was not ok' );
}
return response.json();
} )
.catch( error => {
log_error( 'get_loaned_info(): fetch() error:', error );
} ) || {};
log_debug( 'result=', result );
return result;
},
update_my_contents_page = () => {
log_debug( 'update_my_contents_page(): start' );
if ( document.querySelector( '#contentAction_return_ku_myx' ) ) {
return;
}
const
content_ul = document.querySelector( '.contentTableList_myx > ul.nav' ),
deliver_myx = document.querySelector( [
'#contentAction_deliver_myx',
'#contentAction_dummy_dlr_myx',
'.myx-column.myx-span10 .myx-float-left:first-child > .inline_myx.button_myx:first-child > .inline_myx.button_myx .pointer_myx[bo-switch="action.type"][bo-id="action.id"]',
].join( ',' ) );
if ( ( ! content_ul ) || ( ! deliver_myx ) ) {
return;
}
const
deliver_container = deliver_myx.closest( '.button_myx' ),
return_container = deliver_container.cloneNode( true ),
bulk_action = return_container.querySelector( '[type="bulkAction"]' ),
button_action = bulk_action.querySelector( '[type="button"][action="action"]' ),
pointer_myx = button_action.querySelector( '.pointer_myx' ),
action_text = pointer_myx.querySelector( '[bo-text="action.text"]' ),
counter_span = action_text.parentNode.querySelector( '.ng-binding[ng-hide]' ),
button_link = pointer_myx.querySelector( 'a.myx-button.myx-button-primary' ),
get_selected_content_list = () => {
return Array.from( content_ul.querySelectorAll( 'i.myx-icon.icon-selected' ) ).filter( icon => icon.style.display != 'none' ).map( icon => icon.closest( 'li.myx-active' ) );
},
get_selected_ku_loan_list = () => get_selected_content_list().filter( content => content.querySelector( '[ng-switch-when="KULoan"]' ) ),
update_return_container = () => {
let selected_contents = get_selected_ku_loan_list();
log_debug( 'selected_contents:', selected_contents.length, selected_contents );
if ( selected_contents.length <= 0 ) {
button_link.classList.add( 'myx-button-disabled' );
counter_span.style.display = 'none';
}
else {
button_link.classList.remove( 'myx-button-disabled' );
counter_span.textContent = '(' + selected_contents.length + ')';
counter_span.style.display = 'inline';
}
},
observer = new MutationObserver( ( records ) => {
stop_observe();
try {
update_return_container();
}
catch ( error ) {
log_error( error );
}
finally {
if ( content_ul.closest( '#a-page' ) && return_container.closest( '#a-page' ) ) {
start_observe();
}
else {
return_container.remove();
}
}
} ),
start_observe = () => observer.observe( content_ul, { childList : true, subtree : true, attributes : true } ),
stop_observe = () => observer.disconnect();
bulk_action.setAttribute( 'add-directive-dmyx', 'return-ku-dmyx' );
button_action.removeAttribute( 'deliver-dmyx' );
button_action.removeAttribute( 'dummy-deliver-dmyx' );
button_action.setAttribute( 'return-ku-dmyx', '' );
pointer_myx.setAttribute( 'id', 'contentAction_return_ku_myx' );
action_text.textContent = '返却';
button_link.addEventListener( 'click', ( event ) => {
event.preventDefault();
event.stopPropagation();
stop_observe();
show_loading_mask();
button_link.classList.add( 'myx-button-disabled' );
( async () => {
let selected_asin_list = get_selected_ku_loan_list()
.map( content => ( ( content.querySelector( '[src="responsiveView"][name]' ) || document.createElement( 'b' ) ).getAttribute( 'name' ) || '' ).match( /contentTabList_(.+)/ ) && RegExp.$1 )
.filter( asin => asin ),
loaned_info = await get_loaned_info();
log_debug( 'selected_asin_list=', selected_asin_list, 'loaned_info=', loaned_info );
if ( ( selected_asin_list.length <= 0 ) || ( ! loaned_info ) ) {
update_return_container();
hide_loading_mask();
start_observe();
return;
}
let returned_asin_list = [];
for ( let asin of selected_asin_list ) {
let result = await return_loaned_book( asin, loaned_info );
if ( ( ! result ) || ( ! ( result.ReturnKULoan || {} ).success ) ) {
log_error( 'Failed to return book: asin=', asin );
continue;
}
returned_asin_list.push( asin );
}
log_debug( returned_asin_list.length, 'returned_asin_list=', returned_asin_list );
if ( returned_asin_list.length <= 0 ) {
log_error( 'No book returned' );
update_return_container();
hide_loading_mask();
start_observe();
return;
}
// TODO: 返却をしたものが借用中リストから消えるまでタイムラグ有り
// →暫定的に、最大( 1 + MAX_RETURN_CONFIRM_RETRY_NUMBER ) 回確認することで対処
// TODO: 借用中リストからいったん消えたあと、再び現れることもある模様、対処困難なため保留
await wait( TIME_INTERVAL_TO_CONFIRM_RETURN_FIRST );
for ( let counter = 0; counter <= MAX_RETURN_CONFIRM_RETRY_NUMBER; counter ++ ) {
let loaned_info = await get_loaned_info(),
removed_counter = 0;
for ( let asin of returned_asin_list ) {
let loaned_book_info = get_loaned_book_info( asin, loaned_info );
if ( loaned_book_info ) {
continue;
}
removed_counter ++;
}
log_debug( 'counter=', counter, 'removed_counter=', removed_counter, 'loaned_info=', loaned_info );
if ( returned_asin_list.length <= removed_counter ) {
break;
}
await wait( TIME_INTERVAL_TO_CONFIRM_RETURN );
}
//update_return_container();
//hide_loading_mask();
//start_observe();
location.reload( true ); // TODO: リロードせずに情報を更新したい
} )();
} );
deliver_container.parentNode.appendChild( return_container );
update_return_container();
start_observe();
},
update_loaned_book_page = () => {
log_debug( 'update_loaned_book_page(): start' );
if ( document.querySelector( '.' + SCRIPT_NAME + '-return-button' ) ) {
return;
}
let return_button = document.createElement( 'button' );
return_button.textContent = '返却';
return_button.className = SCRIPT_NAME + '-return-button a-text-center';
return_button.addEventListener( 'click', ( event ) => {
return_button.disabled = true;
show_loading_mask();
event.preventDefault();
event.stopPropagation();
( async () => {
let asin = CURRENT_PAGE_INFO.asin,
result = await return_loaned_book( asin );
if ( ( ! result ) || ( ! ( result.ReturnKULoan || {} ).success ) ) {
return_button.disabled = false;
hide_loading_mask();
log_error( 'Failed to return book: asin=', asin );
alert( '返却できませんでした' );
return;
}
// TODO: 返却をしたものが借用中リストから消えるまでタイムラグ有り
// →暫定的に、最大( 1 + MAX_RETURN_CONFIRM_RETRY_NUMBER ) 回確認することで対処
await wait( TIME_INTERVAL_TO_CONFIRM_RETURN_FIRST );
for ( let counter = 0; counter <= MAX_RETURN_CONFIRM_RETRY_NUMBER; counter ++ ) {
let loaned_info = await get_loaned_info(),
loaned_book_info = get_loaned_book_info( asin, loaned_info );
log_debug( 'counter=', counter, 'loaned_info=', loaned_info, 'loaned_book_info=', loaned_book_info );
if ( ! loaned_book_info ) {
break;
}
await wait( TIME_INTERVAL_TO_CONFIRM_RETURN );
}
//return_button.disabled = false;
//hide_loading_mask();
location.reload( true ); // TODO: リロードせずに情報を更新したい
} )();
} );
document.querySelector( '#ebooksInstantOrderUpdate' ).after( return_button );
},
update_page = () => {
switch ( CURRENT_PAGE_INFO.type ) {
case PAGE_TYPE.my_contents :
update_my_contents_page();
break;
case PAGE_TYPE.loaned_book :
update_loaned_book_page();
break;
}
},
observer = new MutationObserver( ( records ) => {
let initialized = false;
stop_observe();
try {
update_page();
}
catch ( error ) {
log_error( error );
}
finally {
start_observe();
}
} ),
start_observe = () => observer.observe( document.body, { childList : true, subtree : true } ),
stop_observe = () => observer.disconnect();
insert_css_rule();
update_page();
start_observe();
} )();