Hacking RELEASE HACDN - Download game NCA files directly from Nintendo's CDN!

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SimonMKWii

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STOP USING THIS, A PATCH IS NECESSARY.

Wait... you thought I was done with the massive releases???
Here's one more!
This is HACDN, it's like ShogunTool, but on steroids!

Features:
  • Everything ShogunTool did, plus game download capabilities!
Dependencies:
But won't this allow piracy?
  • No, as this application cannot download titlekeys, and you can only extract titlekeys from your Switch for games you have legitimately purchased.
Usage:
  • Put in a title ID, get info and then click "Get the Game NCA!"
It will save the main NCA in a named folder (e.g. Super Mario Odyssey) in the "Games" folder.

Note: The application may go into "not responding" mode while downloading, this is normal.
 

TheKrane

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Wait a second. So you're saying we can download games directly from the Nintendo Servers?
Wouldn't that mean that they can find out which IP the games are downloaded to and then ban/blacklist thos IP addresses?
 
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Muskusrat

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Wait a second. So you're saying we can download games directly from the Nintendo Servers?
Wouldn't that mean that they can find out which IP the games are downloaded to and then ban/blacklist thos IP addresses?
They could, but they never did this for WiiU for example where download with uTikDownloader was super easy.
 
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SimonMKWii

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I'll wait this out til I see how Nintendo bans accounts on Switch cause I feel like it won't be lax like the Wii U.
They can't detect this, all HTTP requests are identical to the way the Switch would output them!
Unless you download a game you don't own, this would seem suspicious to Nintendo, surprise, surprise...
 

SciresM

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Wait... you thought I was done with the massive releases???
Here's one more!
This is HACDN, it's like ShogunTool, but on steroids!

1) Please do not embed compiled binaries of hactool in your tool. Please link to the releases page.

They can't detect this, all HTTP requests are identical to the way the Switch would output them!
Unless you download a game you don't own, this would seem suspicious to Nintendo, surprise, surprise...
2) Actually, this is totally distinguishable:
2a) You are not using the correct user-agent, so the server can tell your tool is downloading and not a console.
2b) You are not sending the correct requests to download games the way that the console does -- the console uses a very specific pattern of requests, and you're not doing it.

3) Your tool doesn't actually work.
3a) The way that you download games is to save the first "8008135" bytes of the CNMT NCA (dude, seriously?), and then you download the first 1000000000 bytes of the NCAID listed at offset 96 into the CNMT.
-This is not a valid heuristic for determining the main application NCA ID from a CNMT.
-Games are frequently more than a billion bytes in size.
3b) Your "title name recognition feature" hardcodes Odyssey 1.0.0's NCA ID....and doesn't have names registered for literally anything else.

Anyway, this tool's pretty shit, I'd recommend using only at your own risk.
 
Last edited by SciresM,

nmkd

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Does that mean, JUST IN THEORY, that I can just download paid games and then use a key that someone shared (you know that's gonna happen anyway) and play it?

If yes, then... ouch. Then piracy is way too convenient.
 

charlieb

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1) Please do not embed compiled binaries of hactool in your tool. Please link to the releases page.
---snip---
Anyway, this tool's pretty shit, I'd recommend using only at your own risk.

*OUCH*

--------------------- MERGED ---------------------------

Does that mean, JUST IN THEORY, that I can just download paid games and then use a key that someone shared (you know that's gonna happen anyway) and play it?

If yes, then... ouch. Then piracy is way too convenient.

You've obviously not seen things on the WiiU scene where it was as easy as this


To OP, thank you all the same for this, all homebrew is welcome regardless.
 
Last edited by charlieb,
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