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To: users@tomcat.apache.org
Subject: Re: Calling a CGI script from Servlet
Date: Sun, 01 Aug 2010 09:26:23 -0400
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Yes, I mean /home/troy . . .
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-----Original Message-----
From: Jason Pyeron <jpyeron@pdinc.us>
To: 'Tomcat Users List' <users@tomcat.apache.org>
Sent: Sun, Aug 1, 2010 9:19 am
Subject: RE: Calling a CGI script from Servlet


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> -----Original Message-----

> From: troylparrish@aol.com [mailto:troylparrish@aol.com]=20

> Sent: Sunday, August 01, 2010 8:19

> To: users@tomcat.apache.org

> Subject: Re: Calling a CGI script from Servlet

>=20

>=20

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> Mark,

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> Thanks for the reply. I am using Tomcat 6.0.20.  The script=20

> is located in WEB-INF/cgi and in the call I am using an absolute path:

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> //System Call

> String[cmd] =3D {"python",=20

> 'home/troy/NetBeansProjects/GSMFilter/web/WEB-INF/cgi/helloWor


Do you mean /home?


> ld.py", "-c"}; Runtime rt =3D Runtime.getRuntime(); Process proc =3D >

rt.exec(cmd); int exitVal =3D proc.waitFor();

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> //Write exit value to file - Get value of zero=20

> toFile.write("" + exitVal);

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> MY ORIGINAL POST:=20

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> I am new to configuring tomcat (I have run it for a few years=20

> as it is packaged with Netbeans) and new to linux and I am=20

> stuck on a particular problem.

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> I have a project in which I am trying to call a python code=20

> from a servlet.  I am using tomcat6 on Ubuntu 10.04.  I have=20

> used both Runtime.exec() as well as ProcessBuilder to make=20

> the call.  I have completely copied the code from the=20

> JavaWorld article When Runtime.exec() won't=20

> (http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.h

tml). ; I have granted full permissions on all the files (read, > write an=
d

execute).  When I get an exit value on the=20

> execution of the script I get a value of 0 (zero).  I am able=20

> to execute the script from a simple java program in this=20

> environment (tomcat and Ubuntu) using the same syntax but not=20

> in the servlet.  I am able to execute the script from the=20

> servlet in Ubuntu 10.04 from glassfish and I am able to=20

> execute the script from the servlet in tomcat6 in a windows=20

> environment.  However, when I try to execute the script from=20

> the servlet in tomcat6 and Ubuntu 10.04 - nothing - even=20

> though I get the exit value of zero, I get the zero value=20

> returned but no action from the script (all it does is open=20

> the default browser).

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> I have made the following changes in my tomcat installation:

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> Uncommented the following in the web.xml:

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>  <servlet>

>         <servlet-name>cgi</servlet-name>

>        =20

> <servlet-class>org.apache.catalina.servlets.CGIServlet</servlet-class>

>         <init-param>

>           <param-name>debug</param-name>

>           <param-value>0</param-value>

>         </init-param>

>         <init-param>

>           <param-name>cgiPathPrefix</param-name>

>           <param-value>WEB-INF/cgi</param-value>

>         </init-param>

>          <load-on-startup>5</load-on-startup>

>     </servlet>

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> <servlet-mapping>

>         <servlet-name>cgi</servlet-name>

>         <url-pattern>/cgi-bin/*</url-pattern>

>     </servlet-mapping>

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> My tomcat-users:

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> <tomcat-users>

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>   <role rolename=3D"tomcat"/>

>   <role rolename=3D"role1"/>

>   <role rolename=3D"manager"/>

>   <user username=3D"tomcat" password=3D"tomcat" roles=3D"tomcat"/>

>   <user username=3D"both" password=3D"tomcat" roles=3D"tomcat,role1"/>

>   <user username=3D"role1" password=3D"tomcat" roles=3D"role1"/>

>   <user username=3D"tomcat" password=3D"tomcat" roles=3D"manager"/> =20

>=20

> </tomcat-users>

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> Change made in context.xml:

> <Context reloadable=3D"true" privileged=3D"true">

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> Added to system.policy:

> // Grant WebApps All Permission

> grant codeBase "file:/var/lib/tomcat6/webapps/-" {

>     permission java.security.AllPermission; };

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> Added to catalina.policy:

> grant codeBase "file:${catalina.home}/webapps/GSMFilter/-"  {

>     java.io.FilePermission=20

> "/var/libs/tomcat6/webapps/GSMFilter/WEB-INF/storage/<<ALL=20

> FILES>>", "read,write,execute,delete"; };

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> grant codeBase "file:${catalina.home}/webapps/GSMFilter/-"{

>     permission java.security.AllPermission; };

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> grant codeBase "file:${catalina.home}/webapps/GSMFilter/-"{

>          permission java.lang.RuntimePermission=20

> "/home/troy/NetBeansProjects/GSMFilter/web/WEB-INF/storage/<<A

LL FILES>>", "read,write,execute,delete";

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> =20


--

-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=
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-                                                               -

- Jason Pyeron                      PD Inc. http://www.pdinc.us -

- Principal Consultant              10 West 24th Street #100    -

- +1 (443) 269-1555 x333            Baltimore, Maryland 21218   -

-                                                               -

-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=
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This message is copyright PD Inc, subject to license 20080407P00.


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