Is it possible to allow uploads in 7z format?

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koshonin
Posts: 354
Joined: Nov 26th, '14, 18:51

Is it possible to allow uploads in 7z format?

Post by koshonin » Nov 9th, '15, 10:36

7z would be really nice, because it allows utf-8 filenames in directories and is free on linux and is therefore a good alternative to rar.

I don't think there are security reasons for not allowing it, but one cant be to sure nowadays

looking forward to a positive decision :)

k.

MoerkJ
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Posts: 1322
Joined: Dec 6th, '03, 08:40
Location: Germany

Re: is it possible to allow uploads in 7z format?

Post by MoerkJ » Dec 21st, '15, 10:53

added .7z to the list of allowed archive attachments.

allowed extensions of the "archive" group are now: 7z, ace, gtar, gz, rar, tar, zip

I don't know how popular .7z is... I guess .zip and .rar are by far most popular under Windows... and I still see users asking what rar files are.

People not knowing what .7z is should go to http://7-zip.org/ and download the 7-zip file archiver. It can also handle a lot of other archive formats as well.
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koshonin
Posts: 354
Joined: Nov 26th, '14, 18:51

Re: is it possible to allow uploads in 7z format?

Post by koshonin » Dec 21st, '15, 18:19

thank you and happy holidays

manera
Posts: 45
Joined: Jan 20th, '15, 20:25

Re: is it possible to allow uploads in 7z format?

Post by manera » Jan 1st, '16, 19:23

Just a note for what it's worth
*.7zip is bad for recovery
*.rar requires lots of CRC which counters it's space advantages and does not really guaranty recovery; latest version isn't much better
*.zip is always recoverable

manera
Posts: 45
Joined: Jan 20th, '15, 20:25

Re: is it possible to allow uploads in 7z format?

Post by manera » May 16th, '16, 16:16

For the past half+ year there's been a bunch of news about 7-zip hacks. I think the latest news is a very serious matter as many programs are using the library. Only one of them could ruin your day.
http://www.hackinsight.org/news,605.html
http://securityaffairs.co/wordpress/472 ... -tool.html
I think 7-zip should be considered for a temporarily ban.
I don't think many people will be able to update everything (if all do get updated at all) within a year, though.

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