CloudFlare error with Mangakakalot.com (error 1020)

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Issue #404 resolved
User01 created an issue

Hi Red Squirrel 😀

Just reporting that the website Mangakakalot.com seems to be having issues when downloading pages again. Only some pictures are downloaded, about 1/4 are missing.

Version: Manga Downloader v46.5 (up-to-date on 11 08 2020)

Settings : “Bypass CloudFlare” = on ; Concurrent download = 1 ; Pause between pages = 2 seconds

Manga URL: https://mangakakalot.com/manga/nekojiru_udon (strange dark comedy)

In-app Log:

19:43:04: Getting pages list for chapter Chapter 1 : Piss's Piss...
19:43:04: 8 pages found for this chapter.
19:43:04: Downloading pages...
19:43:24: Error! Unable to detect the extension for the image file download at: https://s3.mkklcdnv3.com/mangakakalot/n1/nekojiru_udon/chapter_1_pisss_piss/2.jpg
19:43:24: Usually this mean that the server returned HTML code instead of the image file or simply the image is corrupted.
19:43:48: Error while downloading image at URL https://s3.mkklcdnv3.com/mangakakalot/n1/nekojiru_udon/chapter_1_pisss_piss/3.jpg
19:43:48: Trying again...
19:44:08: Error while downloading image at URL https://s3.mkklcdnv3.com/mangakakalot/n1/nekojiru_udon/chapter_1_pisss_piss/4.jpg
19:44:08: Trying again...
19:44:58: Error while downloading image at URL https://s3.mkklcdnv3.com/mangakakalot/n1/nekojiru_udon/chapter_1_pisss_piss/4.jpg
19:44:58: Trying again...
19:46:43: Error while downloading image at URL https://s3.mkklcdnv3.com/mangakakalot/n1/nekojiru_udon/chapter_1_pisss_piss/7.jpg
19:46:43: Max retry attempts exceeded, image skipped.
19:47:01: Error! Unable to detect the extension for the image file download at: https://s3.mkklcdnv3.com/mangakakalot/n1/nekojiru_udon/chapter_1_pisss_piss/8.jpg
19:47:01: Usually this mean that the server returned HTML code instead of the image file or simply the image is corrupted.
19:47:01: Chapter downloaded.

Trying to directly access these links in a browser gives out an error 1020, that seems to be caused by the CloudFlare protection.

Error 1020 Ray ID: 5c13d4420df8cdc7 • 2020-08-11 17:55:43 UTC

Access denied

What happened?

This website is using a security service to protect itself from online attacks.

Accessing these URL after loading the page in the browser works fine, so it might rely on a cookie/token or something like that, to correctly deliver the picture to regular browser users.

If I turn off the “Bypass Cloudfare” option in Manga Downloader, most pages are downloaded correctly (less errors than when the Bypass is on), but some pages are still failing to download correctly.

Grazie mille for all the hard work! 👍

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