if you're front ending with Apache.. then Apache .htaccess could be configured
against it..
If you exec those same commands with root access and it works its definitely a
permission problem with the previous username
Good Point
M-
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----- Original Message -----
From: "Santosh Puranshettiwar" <[EMAIL PROTECTED]>
To: "Tomcat Users List" <users@tomcat.apache.org>
Sent: Tuesday, September 12, 2006 8:56 AM
Subject: Re: Executing binary from Servlet
> >Specifically its been my experience that if you DONT have Security
> permissions specifically >configured for that jar then the >classes will
> not run
> Is it applicable to only to jars or to any webapp deployed in Tomcat as
> such. I've managed to use exec() successfully on some programs
> successfully without ever touching the security manager.
>
> For Mark HB:
> Could it be a ownership/group problem?
>
> Santosh.
> Martin Gainty wrote:
>> Mark-
>> My experience has been radically different than Davids
>>
>> Specifically its been my experience that if you DONT have Security
>> permissions specifically configured for that jar then the classes will not
>> run
>> here is an example from catalina.policy
>>
>> grant codeBase "file:${catalina.home}/bin/bootstrap.jar"
>> {
>> permission java.lang.RuntimePermission "getenv.CATALINA_HOME";
>> permission java.lang.RuntimePermission "setenv.CATALINA_HOME";
>> permission java.util.PropertyPermission "catalina.home", "read,write";
>> permission java.security.AllPermission;
>> };
>> You have to run with security manager in order to have the policy read and
>> interpreted correctly
>>
>> I would suggest you run in debug so you can display what is going on
>> i.e.
>> sh catalina.sh -debug -security
>>
>>> run org.apache.catalina.startup.Bootstrap
>>>
>>
>> M-
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>> information intended only for the person(s) to whom this email message is
>> addressed. If you have received this email message in error, please notify
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>>
>>
>>
>> ----- Original Message -----
>> From: "Mark HB" <[EMAIL PROTECTED]>
>> To: "Tomcat Users List" <users@tomcat.apache.org>
>> Sent: Tuesday, September 12, 2006 8:27 AM
>> Subject: Re: Executing binary from Servlet
>>
>>
>>
>>> HI,
>>> It all runs fine as a standalone, and when I print the command that I am
>>> running using exec to the screen and then run it myself, it works fine.
>>> I had this servlet deployed on another machine, and I never had this
>>> problem.
>>> It is very odd, as sometimes it works and the executable is executed and
>>> the results are returned, and other times it returns the same error as
>>> before.
>>> There doesn't seem to be any pattern as to when they work.
>>> I have changed the policy file, to no affect
>>>
>>> java.io.IOException: java.io.IOException:
>>> /srv/www/tomcat5/base/webapps/simulator/WORK/yqzatmopa343/cimmsim:
>>> cannot execute
>>> at java.lang.UNIXProcess.(UNIXProcess.java:143)
>>> at java.lang.Runtime.execInternal(Native Method)
>>> at java.lang.Runtime.exec(Runtime.java:566)
>>> at java.lang.Runtime.exec(Runtime.java:428)
>>> at RunSimulation.run(CimmSimServlet.java:655)
>>>
>>> I am looking into deploying the servlet in the J2EE app server instead
>>> and seeing if that avoids this problem.
>>> Its all very odd!
>>> Thanks
>>> Mark
>>>
>>> Santosh Puranshettiwar wrote:
>>>
>>>> I agree with David. This does not seem to be a SecurityManager
>>>> problem. Does your code run properly as a normal executable program
>>>> (with main())?
>>>>
>>>> Sameer Acharya wrote:
>>>>
>>>>> Have you tried adding following to your web app permissions in policy
>>>>> file
>>>>>
>>>>> permission java.lang.RuntimePermission "java.lang.Runtime";
>>>>>
>>>>> -Sameer
>>>>>
>>>>>
>>>>>
>>>>> Mark HB <[EMAIL PROTECTED]> wrote: Hi,
>>>>>
>>>>> My apologies for the confusion, but my previous claim to have sorted
>>>>> this problem out is now incorrect. It seems with the upgrade to
>>>>> 1.5.0, the execution of the external binary does work, --- but only
>>>>> sometimes?? ---. I can't seem to work out the exact conditions that
>>>>> it works, and seems to be random.
>>>>>
>>>>>
>>>>> Could someone please indicate what I need to add/change in the
>>>>> catalina.policy file to allow the execution of external binaries.
>>>>> I've had a good look at this url and can't seem to find any indicators.
>>>>>
>>>>> > http://tomcat.apache.org/tomcat-5.0-doc/security-manager-howto.html
>>>>>
>>>>> Cheers
>>>>> Mark
>>>>>
>>>>>
>>>>> -------------------------------------
>>>>>
>>>>> Thanks Enrico,
>>>>>
>>>>> However I seem to have inadvertently solved it. I was updating to the
>>>>> latest release of jre and recompiled the servlet with 1.5.0 and now it
>>>>> works.
>>>>> Previously I was using 1.3.1.
>>>>> So there we go.
>>>>>
>>>>> Cheers
>>>>> Mark
>>>>>
>>>>> Enrico Giurin wrote:
>>>>>
>>>>>
>>>>>> Hello,
>>>>>> I guess yours is a problem of security manager of tomcat.
>>>>>> I think you have to modify some entries of the catalina.policy file.
>>>>>> http://tomcat.apache.org/tomcat-5.0-doc/security-manager-howto.html
>>>>>>
>>>>>>
>>>>>> Enrico.
>>>>>>
>>>>>> ----- Original Message ----- From: "Mark HB"
>>>>>> To: Sent: Tuesday, September 12, 2006 10:16 AM
>>>>>> Subject: Executing binary from Servlet
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> I am looking for some help on a problem I have encountered with
>>>>>>> executing a binary from a servlet using Runtime.getRuntime().exec()
>>>>>>> The code that I have is simply executing a binary called "cimmsim":
>>>>>>>
>>>>>>> File theDir = new File(curdir+"WORK/"+rand);
>>>>>>> java.lang.String cmdline = theDir+"/cimmsim -f config";
>>>>>>> try {
>>>>>>> Process p = Runtime.getRuntime().exec(cmdline, null, theDir);
>>>>>>> }
>>>>>>> catch (IOException e)
>>>>>>> { e.printStackTrace(); }
>>>>>>>
>>>>>>> The error that is produced is:
>>>>>>> java.io.IOException: java.io.IOException:
>>>>>>> /srv/www/tomcat5/base/webapps/simulator/WORK/yqzatmopa343/cimmsim:
>>>>>>> cannot execute
>>>>>>> at java.lang.UNIXProcess.(UNIXProcess.java:143)
>>>>>>> at java.lang.Runtime.execInternal(Native Method)
>>>>>>> at java.lang.Runtime.exec(Runtime.java:566)
>>>>>>> at java.lang.Runtime.exec(Runtime.java:428)
>>>>>>> at RunSimulation.run(CimmSimServlet.java:655)
>>>>>>>
>>>>>>> A uname -a on the system gives:
>>>>>>> Linux apppx1 2.6.16.13-4-xen #1 SMP Wed May 3 04:53:23 UTC 2006 x86_64
>>>>>>> x86_64 x86_64 GNU/Linux
>>>>>>> SUSE LINUX 10.1
>>>>>>>
>>>>>>> I have ensured that the permissions are set to at least 755 and am now
>>>>>>> at a bit of a loss.
>>>>>>> Any ideas?
>>>>>>>
>>>>>>> Cheers
>>>>>>> Mark
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> ---------------------------------------------------------------------------
>>>>>>>
>>>>>>>
>>>>>>> Mark Halling-Brown | Tel: +44-20-7631-6839
>>>>>>> Research Associate |
>>>>>>> Room 359 | Fax: +44-20-7631-6803
>>>>>>> School of Crystallography |
>>>>>>> Birkbeck College | Email:
>>>>>>> Malet Street | [EMAIL PROTECTED]
>>>>>>> London WC1E 7HX | [EMAIL PROTECTED]
>>>>>>> UK |
>>>>>>> http://people.cryst.bbk.ac.uk/~ghall04
>>>>>>> ---------------------------------------------------------------------------
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
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>>>>>>>
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>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
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>>>>>>
>>>>>
>>>>>
>>>> ---------------------------------------------------------------------
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>>>>
>>> --
>>> ---------------------------------------------------------------------------
>>> Mark Halling-Brown | Tel: +44-20-7631-6839
>>> Research Associate |
>>> Room 359 | Fax: +44-20-7631-6803
>>> School of Crystallography |
>>> Birkbeck College | Email:
>>> Malet Street | [EMAIL PROTECTED]
>>> London WC1E 7HX | [EMAIL PROTECTED]
>>> UK |
>>> http://people.cryst.bbk.ac.uk/~ghall04
>>> ---------------------------------------------------------------------------
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To start a new topic, e-mail: users@tomcat.apache.org
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>>>
>>>
>> >
>
>
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