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January 27th, 2009, 02:47 AM
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Shrapnel Fanatic
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Join Date: Jul 2001
Location: Southern CA, USA
Posts: 18,394
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Thanked 12 Times in 10 Posts
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Random: PHP RAR Archive Updating
I'm trying to use the command line rar tool to update a RAR archive on debian, from a PHP script. I can successfully create new archives from my script. I can successfully run a RAR update command to add files to an archive from the shell, as the apache user. But whenever I try to run a RAR update system call from PHP, the RAR tool seems to be unable to work. All RAR outputs is:
Quote:
RAR 3.80 beta 3 ...
Updating archive /path/to/archive.rar
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The archive in question is not solid. I cannot get it to contain new files with a "rar a" command or a "rar u", no matter what random switches I add. The baffling thing is that I can trivially su into the apache user and run the exact command I'm trying to run from PHP, and it works!
I also cannot seem to get 7z to update any archives from PHP. Same situation, where I can update them with the same command on the shell as apache user, and I can create new archives from PHP without problem.
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January 27th, 2009, 11:49 AM
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First Lieutenant
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Join Date: May 2005
Location: Outter Glazbox
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Re: Random: PHP RAR Archive Updating
Try disabling firewall and virus protections.
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January 27th, 2009, 12:11 PM
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Shrapnel Fanatic
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Join Date: Oct 2003
Location: Vacaville, CA, USA
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Re: Random: PHP RAR Archive Updating
One of the first things I would do is have the PHP do "env" and "set" to a file so you can view all of the settings of that user.
Does rar have a "verbose" switch?
Im trying to remember something about update using a temp something to unpack in order to make a comparison. I tihnk a fix was to use the -w switch to assign a work directory. That may be really old fuzzy memory. I will try to google something
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January 27th, 2009, 11:38 PM
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National Security Advisor
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Join Date: Oct 2001
Location: Toronto, Canada
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Re: Random: PHP RAR Archive Updating
I have nothing useful to suggest, but is this some sort of groundwork for a PBW successor?
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January 28th, 2009, 01:40 AM
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Shrapnel Fanatic
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Join Date: Jul 2001
Location: Southern CA, USA
Posts: 18,394
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Thanked 12 Times in 10 Posts
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Re: Random: PHP RAR Archive Updating
The suggestion for a -w switch lead me on the right path. I added something under /tmp for it, and it then tried to add the first file. Unfortunately, it added the file in a corrupt manner. Then I stumbled across this little gem in /usr/share/doc/rar/rar.txt:
Quote:
In a UNIX environment you need to quote wildcards to avoid them
being expanded by shell. For example, this command will extract
*.asm files from RAR archives in current path:
rar e '*.rar' '*.asm'
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d'oh!
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