How to read a password protected zip file

dehseth · Post by **dehseth** » Tue Jan 26, 2010 10:16 am

Hi everybody,

As you can see in topic I would like to know about reading a zip file, especially with password protected ones. I tried to search on forums but whenever I write "zip" as keyword it returns all topics which included zip file links.

Murloc992 · Post by **Murloc992** » Tue Jan 26, 2010 10:31 am

Code: Select all

virtual bool addFileArchive(const path& filename, bool ignoreCase=true,
			bool ignorePaths=true,
			E_FILE_ARCHIVE_TYPE archiveType=EFAT_UNKNOWN,
			const core::stringc& password="") =0;

as found in irr::io::IFileSystem :>

dehseth · Post by **dehseth** » Tue Jan 26, 2010 11:14 am

I have added a zip file into working directory but file system does not see my files.

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if (!g_fileSystem->addFileArchive("resources.zip", true, false, io::E_FILE_ARCHIVE_TYPE::EFAT_ZIP, "anka"))
{
	DebugBreak();
}

I have a folder named "enviroments" and a file in this folder named "enviroment1.X". And I tried to load this x file as:

Code: Select all

scene::IAnimatedMesh* mesh = g_smgr->getMesh("enviroments\\enviroment1.x");

Am I doing smt wrong?

Murloc992 · Post by **Murloc992** » Tue Jan 26, 2010 12:11 pm

Gonna try to do it myself and post the code in a short time

dehseth · Post by **dehseth** » Tue Jan 26, 2010 12:23 pm

If I do not put a password it works.. But with password zip file does not work. I compressed zip file in max compression. This may be a bug in Irrlicht, I may open a new topic under bug section after inspecting this error carefully.

And yet I got another problem

getSceneCollisionManager()->getSceneNodeAndCollisionPointFromRay method started to return an error Access violation reading location 0x00000000.
Why this happens

Murloc992 · Post by **Murloc992** » Tue Jan 26, 2010 12:48 pm

Code: Select all

if(!iDVC->getFileSystem()->addFileArchive("resources.zip",true,false,irr::io::EFAT_ZIP,"murloc992"))
		return;

Works perfectly, but you must put .ZIP archive on Normal compression, not Storing, or Maximum

dehseth · Post by **dehseth** » Tue Jan 26, 2010 12:55 pm

isn't that a bug?

Murloc992 · Post by **Murloc992** » Tue Jan 26, 2010 12:57 pm

Damn it's kinda random, now it's not working.. what the hell..

3DModelerMan · Post by **3DModelerMan** » Tue Jan 26, 2010 2:23 pm

I noticed there were two backslashes \\ in the file path. Shouldn't they be forward // so that they don't get mistaken for an escape sequence?

dehseth · Post by **dehseth** » Tue Jan 26, 2010 2:28 pm

password protected zip files does not work... I am opening a bug topic about this...

hybrid · Post by **hybrid** » Tue Jan 26, 2010 2:55 pm

A double backslash is the non-portable version of the path separator. It's much better to always use / (note, only one slash!) as all platforms support it.

link3rn3l · Post by **link3rn3l** » Wed Jan 27, 2010 2:51 pm

use 7zip to compress ZIP files...

and in options please set AES-256 encription in 7zip
http://www.7-zip.org/

other encrypt algorithm not work ..!!!!

irrlicht compiled with dx8,dx9 and zip encrypted ...
in bullet animator - binaries:
http://irrlicht.sourceforge.net/phpBB2/ ... t+animator

Yes, long live to Irrlicht !!!!!!
....

DtD · Post by **DtD** » Wed Jan 27, 2010 2:59 pm

3DModelerMan wrote:I noticed there were two backslashes \\ in the file path. Shouldn't they be forward // so that they don't get mistaken for an escape sequence?

\\ would be an escape sequence for just one \

However it is generally a good habbit to use / instead to maintain Linux and OSX compatibility in the future.

~DtD

dehseth · Post by **dehseth** » Wed Jan 27, 2010 3:25 pm

thanks.. I used win-zip and select AES encryption it worked

hybrid · Post by **hybrid** » Wed Jan 27, 2010 5:09 pm

A strongly related thing: You can use the more advanced compression methods of winzip/7zip, namely bzip2 and lzma to compress files with higher ratios.