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141 bytes added ,  18:53, 24 May 2022
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added to the category of Nintendo software instead of that page, also this is a stub
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News / Weather channel downloads data packages from Nintendo servers via plain http connection.
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[[Category:Nintendo software]]
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Some examples:
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{{stub}}
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{{Infobox channel
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| title      = News Channel
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| image      = [[File:Newschannel.png|200px]]
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| desc        = News information
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| id          = HAGA, HAGx
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| source      = update
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| type        = General channel
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| version    = 0.7 (7)
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| peripherals = {{Wiimote1}} {{Internet}}
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| wc24        = 1
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}}
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http://weather.wapp.wii.com/1/076/short.bin
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The '''News Channel''' downloads data packages from Nintendo servers via plain HTTP connection. The official servers for the News Channel were discontinued on June 28, 2013; however, [[RiiConnect24]] has since restored its functionality.
http://weather.wapp.wii.com/1/076/forecast.bin
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http://news.wapp.wii.com/1/076/news.bin.08
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Nowadays, it seems the news file has moved:
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The data files are RSA-2048-SHA1 signed, and the LZ10 compressed content begins at 0x140. A Kaitai file documenting the file structure can be found [https://github.com/RiiConnect24/Kaitai-Files/blob/master/Kaitais/news_file.ksy here], and code used by RiiConnect24 to download news data and generate files is available [https://github.com/RiiConnect24/File-Maker/tree/master/Channels/News_Channel here].
 
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http://news.wapp.wii.com/1/076/news.bin.00
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...
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http://news.wapp.wii.com/1/076/news.bin.23
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File structure:
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<pre>
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$0000 - $003F: padding (00)
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$0040 - $013F: rsa encrypted sha-1 signature of rest of the file
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$0140 - $....: compressed data
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</pre>
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Data compression method is still unknown. If you calculate entropy of the data, you will notice that it is definitely not encrypted. Probably it uses a modified version of propieritary Nintendo compression method described here: http://everything2.com/index.pl?node_id=1469892
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[[Category:Software]]
 
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