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getmango / mango-plugins

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[Bug] Nhentai plugin no longer works, and the issue is not the new plugin. #28

Closed zeldatp151 closed 2 years ago

zeldatp151 commented 2 years ago

Plugin nhentai

Describe the bug neither the new plugin, nor the plugin from last year work on nhentai now, I think something has changed on the nhentai.net site. now when I try to download from nhentai, I get the following error "Failed to list chapters. Error: Error: Failed to get gallery title"

To Reproduce Steps to reproduce the behavior:

  1. try to use the nhentai plugin in mango to download any manga

Expected behavior I expect the manga to be downloaded

Screenshots If applicable, add screenshots to help explain your problem.

Mango version E.g., v0.26.2

Additional context I have debug logging turned on, and even with that I still only get the following when trying to download from nhentai

[DEBUG] Setting proxy
[DEBUG] Setting read timeout
[DEBUG] Requesting https://nhentai.net/g/97295/
[DEBUG] Performing request
[ERROR] Failed to get gallery title
[DEBUG] 200 GET /api/admin/plugin/list?plugin=nhentai&query=https%3A%2F%2Fnhentai.net%2Fg%2F97295%2F 92.23ms

each time I try

hkalexling commented 2 years ago

I couldn't reproduce the issue. Does it work when you visit https://nhentai.net/g/97295/ directly from your browser?

zeldatp151 commented 2 years ago

It's working again, I don't know what happened, but for 2 days I tried to figure out what was going on before posting this bug, but now it just works again out of nowhere.

hkalexling commented 2 years ago

I guess nhentai was down or showing an error message on https://nhentai.net/g/97295/. Since it can't be reproduced anymore I am closing this issue. Please feel free to reopen or comment if it happens again.

zeldatp151 commented 2 years ago

Ok, it is now happening again, and it happens with ALL nhentai links, not any specific one. it's only a hunch, but I think it may be caused by cloudflare, I noticed that every time I go to the nhentai page, on any device, including my phone which is not on the same network, I has to do a check to verify the browser with cloudflare, maybe The plugin is either not able to pass the cloudflare check, or it times out before the check can complete.

hkalexling commented 2 years ago

Yeah that sucks. All the plugin does is simply scrape the images, and passing the cloudflare check would be non-trivial because the whole point is to prevent DDOS attacks so any automation might be flagged.

zeldatp151 commented 2 years ago

It seems it does still work when cloudflare isn't being too strict, nothing to be done, not worth trying to write a bypass for cloudflare, just have to wait a day or 2 for it it normalize.