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4chan Archive Image Downloader

4chan archive thread image downloader for general use across many foolfuuka based imageboards. Downloads all images individually in a thread with original filenames (by default). Optional thread API button, for development purposes.

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Review: OK - script works, but has bugs

sk3
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Posted: 2024-09-19
Edited: 2024-09-19

Script doesn't work on archived.moe with webms. tried it on firefox first... it says confirm? then "processing" when i click "indiv DL" but nothing happens.
on Chrome its a different story, it doesn't even work with tampermonkey on chrome. it keeps saying install tampermonkey or violentmonkey even after I installed tampermonkey. next I install violentmonkey on chrome and again the same story as firefox. Nothing downloads. Can you resolve this issue? I can update my review if it works again.

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Posted: 2024-09-26

Script doesn't work on archived.moe with webms.

This is a site-related issue that is beyond my scope of fixing. The script works fine, but archived.moe doesn't save all of the content on their archives that they take from 4chan. This is listed explicitly in their FAQ:

https://archived.moe/_/articles/faq/

Q: Why do you archive only thumbnails?
A: Two main reasons:
1) Some boards can generate up to 600GB of data in a month, that's a lot of data to handle, so archiving entire 4chan would be next to impossible (unless I could afford say... 10k USD for a huge dedicated storage server)
2) There are already great archives out there which archive 4chan with full sized images, flash, PDF, webms, and etc. (listed below).

In the example of this archived thread https://archived.moe/wsg/thread/5685469/ on archived.moe, the webms aren't actually saved in the archive as evidenced by clicking on them with only the thumbnails being available. This is further verified by looking into the JSON file for the thread using the API link: https://archived.moe/_/api/chan/thread/?board=wsg&num=5685469

All the media links for the webms (and similarly on other archived.moe threads with other files) are 1) external, and 2) not available on the external sites it links to. Therefore, it's not possible for webms or certain files on archived.moe to be saved with this script if they aren't actually available on the site to begin with.

Conclusion: Script works, archive site in question doesn't actually have the files to save for the script to work properly. Not an issue I can resolve.

sk3
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Posted: 2024-09-27
Edited: 2024-09-27

the jpegs, webms etc are actually available on archived.moe for a period of two weeks (they start failing one by one based on where they are hosted after the initial 2 weeks runs out). So lets say a thread expired 2 days ago and its on archived.moe I can go to that thread number and download the media files one by one manually. This means that they are still available on archived.moe to download. But your script might actually be failing to bypass the cloudflare verification which is covered here https://github.com/mikf/gallery-dl/issues/5399

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Posted: 2024-09-27
But your script might actually be failing to bypass the cloudflare verification which is covered here https://github.com/mikf/gallery-dl/issues/5399

I'll look into that. Thank you for your review.

sk3
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Posted: 2024-09-27

Sure. In case you didn't come across this issue ever before, its because this started getting reported only in 2023. This is definitely where the script has to be getting blocked. They found solutions after nearly 1 year of discussions, but it's still really hard to implement if you read through the discussion in that link.

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