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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: AW: File and directory permissions on Tomcat 8.5 tar archive
Date Fri, 24 Nov 2017 13:45:50 GMT
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Thomas,

On 11/24/17 8:39 AM, Thomas Rohde wrote:
> 
> 
> -----Urspr√ľngliche Nachricht----- Von: Christopher Schultz
> [mailto:chris@christopherschultz.net] Gesendet: Freitag, 24.
> November 2017 14:21 An: users@tomcat.apache.org Betreff: Re: File
> and directory permissions on Tomcat 8.5 tar archive
> 
> Rune,
> 
> On 11/24/17 7:53 AM, Rune Rustand wrote:
>> Apache Tomcat 8.5.23 Redhat Enterprise Linux 7.4 
>> (3.10.0-693.1.1.el7.x86_64)
> 
> 
> 
>> Binary distributions tar archive
> 
>> We are upgrading our servers from Tomcat 8.0 to Tomcat 8.5, and
>> are using the core archive. The process is done by running a
>> puppet script that extracts the tar archive on all the servers
>> (many).
> 
>> Are there any reasons why the file and directory permissions
>> differ from the tar archive and the zip archive?
> 
> Good question. Evidently, both Info-Zip (the 'unzip' program
> usually found on *NIX-based systems) and Apache Ant understand the
> Info-Zip-specified extension to the ZIP format that encodes file
> permissions and both ought to respect them when both packing and
> unpacking the archive[1].
> 
> I don't know enough about the ZIP file format to be able to inspect
> the archive to determine what's actually stored in there (to
> determine if the archive lacks the permissions or if the extraction
> process is at fault).
> 
>> When I unpack the tar archive the permissions on files and
>> directories are not set for all users.
> 
>> I unpack the archive like this: tar zxvpf
>> apache-tomcat-8.5.23.tar.gz
> 
>> [snip]
> 
>> For the zip file: unzip apache-tomcat-8.5.23.zip
> 
>> [snip]
> 
> Hmm. Those definitely *should be* producing the same file
> permissions... at least, I'd expect them to produce the same file
> permissions.
> 
> I don't see any (missing) options to Apache ant's <zip> task that
> look like they would strip those file permissions. I also don't see
> any options for (Info-Zip) unzip that would be required to restore
> such permissions.
> 
> IMHO, this should Just Work.
> 
> -chris
> 
> [1] https://en.wikipedia.org/wiki/Zip_(file_format)#Implementation
> 
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> 
> 
> While turning around the same issue this week I compared a
> apache-tomcat-8.5.14.tar.gz and an apache-tomcat-8.0.17.tar.gz.
> 
> The permissions differ.
> 
> With 8.0.17 files have rw-r--r-- and with 8.5.14 files have
> rw-r-----
> 
> With 8.0.17 directories (e.g. webapps) have rwxr-xr-x and with
> 8.5.14 they have rwxr-x---
> 
> This means others have no permissions in current Tomcat versions by
> default.
> 
> I found that in the changelog of 8.5.0: Tighten up the default file
> permissions for the .tar.gz distribution so no files or directories
> are world readable by default. Configure Tomcat to run with a
> default umask of 0027 which may be overridden by setting UMASK in
> setenv.sh. (markt)
> 
> So I think it works like expected.

This is a comparison of file permissions coming from tar archives
versus *zip* archives, not a comparison of file permissions coming
from (only) tar archives from two different Tomcat versions.

- -chris
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