bookwalker.jp cover rule broken for new books

[neckothy]

BookWalker has updated their book ids for recent releases to some sort hash / hexadecimal string, breaking the existing rule for anything using this new form of id. For now, older books are still using the old id, and maxurl still works as intended for them.

The logic seems like it should be similar based on the thumbnail url used on their mobile site (see below), but replacing thumbnailImage with coverImage as you would with the old form of id returns 403. I did some very brief testing/guessing and didn't find a solution. Opening this issue in case anyone else knows or wants to try.

Old id examples (working)
Product page: https://bookwalker.jp/dea4737bc4-830b-40ad-946a-8efa4292fd15/
Standard image: https://rimg.bookwalker.jp/9576337/BM2j7K0aiKyzud2kfkni6g__.jpg
Alt image: https://c.bookwalker.jp/9576337/t_700x780.jpg
Mobile site image: https://c.bookwalker.jp/thumbnailImage_7336758.jpg
Original image: https://c.bookwalker.jp/coverImage_7336758.jpg

New id examples (broken)
Product page: https://bookwalker.jp/def765c1ca-7292-4c69-888d-4731b5bc7bc1/
Standard Image: https://rimg.bookwalker.jp/7f15ef05f2e9179c2b450fa9f583cc3/BM2j7K0aiKyzud2kfkni6g__.jpg
Alt image: https://c.bookwalker.jp/7f15ef05f2e9179c2b450fa9f583cc3/t_700x780.jpg
Mobile site image: https://c.bookwalker.jp/thumbnailImage_3cc385f9af054b2c9719e2f50fe51f7.jpg
Original image: ???

[qsniyg]

Thanks for reporting. I've yet to find the original version either, but I've added support for redirecting to the 700x780 image.

[tathastu871]

MOST OF BOOKS ARE FOR MEMBERS ONLY
FOR THOSE WITH PREVIEW/TRIAL AVAILABLE
CHECK FOR

<a href="https://bookwalker.jp/de166f9cee-3f77-47e2-aac6-e7d96e30eb55/?sample=1" target="_blank" class="a-basic-btn--trial a-basic-btn js-preview" data-ga-category="詳細ページ" data-uuid="166f9cee-3f77-47e2-aac6-e7d96e30eb55" data-action-label="試し読み" rel="nofollow">
            <span class="ico ico-book"></span>
            <span class="btn-text">試し読み</span>
        </a>

if above element exists
(Selector - #js-top-block > div > div.p-main__body > div.p-main__left > div.p-main__button > a

UNIQUE SELECTOR 'a.js-preview'

Open -> https://bookwalker.jp/dea4737bc4-830b-40ad-946a-8efa4292fd15/
(document.location.href)
Click on book cover image. It will open whole book trial pages in viewer. And url for viewer is below

Redirects ->https://bookwalker.jp/dea4737bc4-830b-40ad-946a-8efa4292fd15/?sample=1> https://viewer-trial.bookwalker.jp/03/19/viewer.html?cid=a4737bc4-830b-40ad-946a-8efa4292fd1&cty=1

SO REGEX - GET document.location.href -> Replace '^https://bookwalker.jp/de' with 'https://viewer-trial.bookwalker.jp/03/19/viewer.html?cid=' + a4737bc4-830b-40ad-946a-8efa4292fd1 + '&cty=1'

IMP NOTE -> IT OPENS WHOLE MANGA BOOK SEVERAL PAGES ON TRIAL EPUB VIEWER. AS YOU CLICK EACH IMAGE/PAGE NEXT IMAGE/PAGE IS LOADED.

Original Image (Higher Quality Url dynamically generated via js prone to expiration)
((420kb jpeg -> 1448x2048) Resolution
OBTAINED VIA DEVTOOLS NETWORK REQUEST

https://viewer-epubs-trial.bookwalker.jp/a_normal/a4737bc4-830b-40ad-946a-8efa4292fd15/1/item/xhtml/p-cover.xhtml/0.jpeg?Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHBzOi8vdmlld2VyLWVwdWJzLXRyaWFsLmJvb2t3YWxrZXIuanAvYV9ub3JtYWwvYTQ3MzdiYzQtODMwYi00MGFkLTk0NmEtOGVmYTQyOTJmZDE1LzEvaXRlbS94aHRtbC9wLWNvdmVyLnhodG1sLzAuanBlZyIsIkNvbmRpdGlvbiI6eyJEYXRlTGVzc1RoYW4iOnsiQVdTOkVwb2NoVGltZSI6MTcxNTkyNDYxN30sIklwQWRkcmVzcyI6eyJBV1M6U291cmNlSXAiOiI0OS4xNC4xNjYuMjQifX19XX0_&Signature=lHgzA0~eWdWYzKwc~RYIJZm7F~xO1m4RGlj-AboxgIvka7ELthb3NQrX0HT31uxjc1Sj~HQ9jnHipATM7hJ3JK48ddABTKW0B94YahNranzR5e-kX8BB8xdV185s-9E42mVQwK19kdpzzMuNVOqaub9fEWnrRIMWwZsNskdIgcU_&Key-Pair-Id=APKAJXSHZG2ORSHLUG5A

---

ABOVE IMAGE WHEN OPENED IN SITE'S MANGA TRIAL VIEWER AND ON CURRENT VIEWPORT

function downloadCanvasAsImage(){

    let canvasImage = document.querySelector('#viewport1 > canvas').toDataURL('image/png');
    //xpath /html/body/div[2]/div/div[2]/div[2]/canvas
    // this can be used to download any image from webpage to local disk
    let xhr = new XMLHttpRequest();
    xhr.responseType = 'blob';
    xhr.onload = function () {
        let a = document.createElement('a');
        a.href = window.URL.createObjectURL(xhr.response);
        a.download = 'image_name.png';
        a.style.display = 'none';
        document.body.appendChild(a);
        a.click();
        a.remove();
      };
      xhr.open('GET', canvasImage); // This is to download the canvas Image
      xhr.send();
}
downloadCanvasAsImage()

ABOVE WILL DOWNLOAD CANVAS AS PNG WITH CANVAS DIMENSIONS
(11.41MB PNG 3305x5478 -> THIS RESOLUTION IS CONSTANT FOR ALL IMAGES AS ITS ITS OBTAINED FROM CANVAS WIDTH AND HEIGHT)

ImageLink

---

---

FROM MAIN PRODUCT LINK PARSE HTML
NOT AVAILABLE ON ALL PRODUCTS AND MAY PRODUCE CORRUPT ENCRYPTED IMAGES COVER+MANGA PAGES

<img src="https://viewer-epubs-trial.bookwalker.jp/resize/9_normal/912fd1df-8adc-43b8-bfa7-8bf114b47338/1/item/xhtml/cover.xhtml/0.jpeg/vLLVMt0DSZx2N8I3Zsx1Wg__.jpg?Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHBzOi8vdmlld2VyLWVwdWJzLXRyaWFsLmJvb2t3YWxrZXIuanAvcmVzaXplLzlfbm9ybWFsLzkxMmZkMWRmLThhZGMtNDNiOC1iZmE3LThiZjExNGI0NzMzOC8xLyoiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjE3MTU5MjM0MjF9fX1dfQ__&amp;Signature=ZJewhWnktK~wFsLurrs5JnPpZfT2~2G75VBxQ6TR~0MVlStPqd0h6A5l3J8QRcbtO9dlSmja-g9AqZHr5zxvUYsOctAi8cAwbe55fQaLo205ulgaLAdtZbSYiqJj3WpcZx-7SCTGPBeilL~HUIdFL0czIt2frkRORrqkSD9VwxY_&amp;Key-Pair-Id=APKAJXSHZG2ORSHLUG5A" alt="" rel="nofollow">
<img src="https://viewer-epubs-trial.bookwalker.jp/resize/9_normal/912fd1df-8adc-43b8-bfa7-8bf114b47338/1/item/xhtml/page0001.xhtml/0.jpeg/vLLVMt0DSZx2N8I3Zsx1Wg__.jpg?Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHBzOi8vdmlld2VyLWVwdWJzLXRyaWFsLmJvb2t3YWxrZXIuanAvcmVzaXplLzlfbm9ybWFsLzkxMmZkMWRmLThhZGMtNDNiOC1iZmE3LThiZjExNGI0NzMzOC8xLyoiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjE3MTU5MjM0MjF9fX1dfQ__&amp;Signature=ZJewhWnktK~wFsLurrs5JnPpZfT2~2G75VBxQ6TR~0MVlStPqd0h6A5l3J8QRcbtO9dlSmja-g9AqZHr5zxvUYsOctAi8cAwbe55fQaLo205ulgaLAdtZbSYiqJj3WpcZx-7SCTGPBeilL~HUIdFL0czIt2frkRORrqkSD9VwxY_&amp;Key-Pair-Id=APKAJXSHZG2ORSHLUG5A" alt="" rel="nofollow">
<img src="https://viewer-epubs-trial.bookwalker.jp/resize/9_normal/912fd1df-8adc-43b8-bfa7-8bf114b47338/1/item/xhtml/page0002.xhtml/0.jpeg/vLLVMt0DSZx2N8I3Zsx1Wg__.jpg?Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHBzOi8vdmlld2VyLWVwdWJzLXRyaWFsLmJvb2t3YWxrZXIuanAvcmVzaXplLzlfbm9ybWFsLzkxMmZkMWRmLThhZGMtNDNiOC1iZmE3LThiZjExNGI0NzMzOC8xLyoiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjE3MTU5MjM0MjF9fX1dfQ__&amp;Signature=ZJewhWnktK~wFsLurrs5JnPpZfT2~2G75VBxQ6TR~0MVlStPqd0h6A5l3J8QRcbtO9dlSmja-g9AqZHr5zxvUYsOctAi8cAwbe55fQaLo205ulgaLAdtZbSYiqJj3WpcZx-7SCTGPBeilL~HUIdFL0czIt2frkRORrqkSD9VwxY_&amp;Key-Pair-Id=APKAJXSHZG2ORSHLUG5A" alt="" rel="nofollow">
<img src="https://viewer-epubs-trial.bookwalker.jp/resize/9_normal/912fd1df-8adc-43b8-bfa7-8bf114b47338/1/item/xhtml/page0003.xhtml/0.jpeg/vLLVMt0DSZx2N8I3Zsx1Wg__.jpg?Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHBzOi8vdmlld2VyLWVwdWJzLXRyaWFsLmJvb2t3YWxrZXIuanAvcmVzaXplLzlfbm9ybWFsLzkxMmZkMWRmLThhZGMtNDNiOC1iZmE3LThiZjExNGI0NzMzOC8xLyoiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjE3MTU5MjM0MjF9fX1dfQ__&amp;Signature=ZJewhWnktK~wFsLurrs5JnPpZfT2~2G75VBxQ6TR~0MVlStPqd0h6A5l3J8QRcbtO9dlSmja-g9AqZHr5zxvUYsOctAi8cAwbe55fQaLo205ulgaLAdtZbSYiqJj3WpcZx-7SCTGPBeilL~HUIdFL0czIt2frkRORrqkSD9VwxY_&amp;Key-Pair-Id=APKAJXSHZG2ORSHLUG5A" alt="" rel="nofollow">
<img src="https://viewer-epubs-trial.bookwalker.jp/resize/9_normal/912fd1df-8adc-43b8-bfa7-8bf114b47338/1/item/xhtml/page0004.xhtml/0.jpeg/vLLVMt0DSZx2N8I3Zsx1Wg__.jpg?Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHBzOi8vdmlld2VyLWVwdWJzLXRyaWFsLmJvb2t3YWxrZXIuanAvcmVzaXplLzlfbm9ybWFsLzkxMmZkMWRmLThhZGMtNDNiOC1iZmE3LThiZjExNGI0NzMzOC8xLyoiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjE3MTU5MjM0MjF9fX1dfQ__&amp;Signature=ZJewhWnktK~wFsLurrs5JnPpZfT2~2G75VBxQ6TR~0MVlStPqd0h6A5l3J8QRcbtO9dlSmja-g9AqZHr5zxvUYsOctAi8cAwbe55fQaLo205ulgaLAdtZbSYiqJj3WpcZx-7SCTGPBeilL~HUIdFL0czIt2frkRORrqkSD9VwxY_&amp;Key-Pair-Id=APKAJXSHZG2ORSHLUG5A" alt="" rel="nofollow">
<img src="https://viewer-epubs-trial.bookwalker.jp/resize/9_normal/912fd1df-8adc-43b8-bfa7-8bf114b47338/1/item/xhtml/page0005.xhtml/0.jpeg/vLLVMt0DSZx2N8I3Zsx1Wg__.jpg?Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHBzOi8vdmlld2VyLWVwdWJzLXRyaWFsLmJvb2t3YWxrZXIuanAvcmVzaXplLzlfbm9ybWFsLzkxMmZkMWRmLThhZGMtNDNiOC1iZmE3LThiZjExNGI0NzMzOC8xLyoiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjE3MTU5MjM0MjF9fX1dfQ__&amp;Signature=ZJewhWnktK~wFsLurrs5JnPpZfT2~2G75VBxQ6TR~0MVlStPqd0h6A5l3J8QRcbtO9dlSmja-g9AqZHr5zxvUYsOctAi8cAwbe55fQaLo205ulgaLAdtZbSYiqJj3WpcZx-7SCTGPBeilL~HUIdFL0czIt2frkRORrqkSD9VwxY_&amp;Key-Pair-Id=APKAJXSHZG2ORSHLUG5A" alt="" rel="nofollow">
<img src="https://viewer-epubs-trial.bookwalker.jp/resize/9_normal/912fd1df-8adc-43b8-bfa7-8bf114b47338/1/item/xhtml/page0006.xhtml/0.jpeg/vLLVMt0DSZx2N8I3Zsx1Wg__.jpg?Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHBzOi8vdmlld2VyLWVwdWJzLXRyaWFsLmJvb2t3YWxrZXIuanAvcmVzaXplLzlfbm9ybWFsLzkxMmZkMWRmLThhZGMtNDNiOC1iZmE3LThiZjExNGI0NzMzOC8xLyoiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjE3MTU5MjM0MjF9fX1dfQ__&amp;Signature=ZJewhWnktK~wFsLurrs5JnPpZfT2~2G75VBxQ6TR~0MVlStPqd0h6A5l3J8QRcbtO9dlSmja-g9AqZHr5zxvUYsOctAi8cAwbe55fQaLo205ulgaLAdtZbSYiqJj3WpcZx-7SCTGPBeilL~HUIdFL0czIt2frkRORrqkSD9VwxY_&amp;Key-Pair-Id=APKAJXSHZG2ORSHLUG5A" alt="" rel="nofollow">
<img src="https://viewer-epubs-trial.bookwalker.jp/resize/9_normal/912fd1df-8adc-43b8-bfa7-8bf114b47338/1/item/xhtml/page0007.xhtml/0.jpeg/vLLVMt0DSZx2N8I3Zsx1Wg__.jpg?Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHBzOi8vdmlld2VyLWVwdWJzLXRyaWFsLmJvb2t3YWxrZXIuanAvcmVzaXplLzlfbm9ybWFsLzkxMmZkMWRmLThhZGMtNDNiOC1iZmE3LThiZjExNGI0NzMzOC8xLyoiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjE3MTU5MjM0MjF9fX1dfQ__&amp;Signature=ZJewhWnktK~wFsLurrs5JnPpZfT2~2G75VBxQ6TR~0MVlStPqd0h6A5l3J8QRcbtO9dlSmja-g9AqZHr5zxvUYsOctAi8cAwbe55fQaLo205ulgaLAdtZbSYiqJj3WpcZx-7SCTGPBeilL~HUIdFL0czIt2frkRORrqkSD9VwxY_&amp;Key-Pair-Id=APKAJXSHZG2ORSHLUG5A" alt="" rel="nofollow">
<img src="https://viewer-epubs-trial.bookwalker.jp/resize/9_normal/912fd1df-8adc-43b8-bfa7-8bf114b47338/1/item/xhtml/page0008.xhtml/0.jpeg/vLLVMt0DSZx2N8I3Zsx1Wg__.jpg?Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHBzOi8vdmlld2VyLWVwdWJzLXRyaWFsLmJvb2t3YWxrZXIuanAvcmVzaXplLzlfbm9ybWFsLzkxMmZkMWRmLThhZGMtNDNiOC1iZmE3LThiZjExNGI0NzMzOC8xLyoiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjE3MTU5MjM0MjF9fX1dfQ__&amp;Signature=ZJewhWnktK~wFsLurrs5JnPpZfT2~2G75VBxQ6TR~0MVlStPqd0h6A5l3J8QRcbtO9dlSmja-g9AqZHr5zxvUYsOctAi8cAwbe55fQaLo205ulgaLAdtZbSYiqJj3WpcZx-7SCTGPBeilL~HUIdFL0czIt2frkRORrqkSD9VwxY_&amp;Key-Pair-Id=APKAJXSHZG2ORSHLUG5A" alt="" rel="nofollow">
<img src="https://viewer-epubs-trial.bookwalker.jp/resize/9_normal/912fd1df-8adc-43b8-bfa7-8bf114b47338/1/item/xhtml/page0009.xhtml/0.jpeg/vLLVMt0DSZx2N8I3Zsx1Wg__.jpg?Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHBzOi8vdmlld2VyLWVwdWJzLXRyaWFsLmJvb2t3YWxrZXIuanAvcmVzaXplLzlfbm9ybWFsLzkxMmZkMWRmLThhZGMtNDNiOC1iZmE3LThiZjExNGI0NzMzOC8xLyoiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjE3MTU5MjM0MjF9fX1dfQ__&amp;Signature=ZJewhWnktK~wFsLurrs5JnPpZfT2~2G75VBxQ6TR~0MVlStPqd0h6A5l3J8QRcbtO9dlSmja-g9AqZHr5zxvUYsOctAi8cAwbe55fQaLo205ulgaLAdtZbSYiqJj3WpcZx-7SCTGPBeilL~HUIdFL0czIt2frkRORrqkSD9VwxY_&amp;Key-Pair-Id=APKAJXSHZG2ORSHLUG5A" alt="" rel="nofollow">
<img src="https://viewer-epubs-trial.bookwalker.jp/resize/9_normal/912fd1df-8adc-43b8-bfa7-8bf114b47338/1/item/xhtml/page0010.xhtml/0.jpeg/vLLVMt0DSZx2N8I3Zsx1Wg__.jpg?Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHBzOi8vdmlld2VyLWVwdWJzLXRyaWFsLmJvb2t3YWxrZXIuanAvcmVzaXplLzlfbm9ybWFsLzkxMmZkMWRmLThhZGMtNDNiOC1iZmE3LThiZjExNGI0NzMzOC8xLyoiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjE3MTU5MjM0MjF9fX1dfQ__&amp;Signature=ZJewhWnktK~wFsLurrs5JnPpZfT2~2G75VBxQ6TR~0MVlStPqd0h6A5l3J8QRcbtO9dlSmja-g9AqZHr5zxvUYsOctAi8cAwbe55fQaLo205ulgaLAdtZbSYiqJj3WpcZx-7SCTGPBeilL~HUIdFL0czIt2frkRORrqkSD9VwxY_&amp;Key-Pair-Id=APKAJXSHZG2ORSHLUG5A" alt="" rel="nofollow">
<img src="https://viewer-epubs-trial.bookwalker.jp/resize/9_normal/912fd1df-8adc-43b8-bfa7-8bf114b47338/1/item/xhtml/page0011.xhtml/0.jpeg/vLLVMt0DSZx2N8I3Zsx1Wg__.jpg?Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHBzOi8vdmlld2VyLWVwdWJzLXRyaWFsLmJvb2t3YWxrZXIuanAvcmVzaXplLzlfbm9ybWFsLzkxMmZkMWRmLThhZGMtNDNiOC1iZmE3LThiZjExNGI0NzMzOC8xLyoiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjE3MTU5MjM0MjF9fX1dfQ__&amp;Signature=ZJewhWnktK~wFsLurrs5JnPpZfT2~2G75VBxQ6TR~0MVlStPqd0h6A5l3J8QRcbtO9dlSmja-g9AqZHr5zxvUYsOctAi8cAwbe55fQaLo205ulgaLAdtZbSYiqJj3WpcZx-7SCTGPBeilL~HUIdFL0czIt2frkRORrqkSD9VwxY_&amp;Key-Pair-Id=APKAJXSHZG2ORSHLUG5A" alt="" rel="nofollow">
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