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From troylparr...@aol.com
Subject Re: Calling a CGI script from Servlet
Date Sun, 01 Aug 2010 13:26:23 GMT
Yes, I mean /home/troy . . .
 

 


 

 

-----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


 



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

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

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

> To: users@tomcat.apache.org

> Subject: Re: Calling a CGI script from Servlet

> 

> 

> 

> 

> Mark,

> 

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

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

> 

> //System Call

> String[cmd] = {"python", 

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



Do you mean /home?



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

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

> 

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

> toFile.write("" + exitVal);

> 

> MY ORIGINAL POST: 

> 

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

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

> stuck on a particular problem.

> 

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

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

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

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

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

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

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

execute).  When I get an exit value on the 

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

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

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

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

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

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

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

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

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

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

> the default browser).

> 

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

> 

> Uncommented the following in the web.xml:

> 

>  <servlet>

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

>         

> <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>

> 

> <servlet-mapping>

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

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

>     </servlet-mapping>

> 

> My tomcat-users:

> 

> <tomcat-users>

> 

>   <role rolename="tomcat"/>

>   <role rolename="role1"/>

>   <role rolename="manager"/>

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

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

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

>   <user username="tomcat" password="tomcat" roles="manager"/>  

> 

> </tomcat-users>

> 

> Change made in context.xml:

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

> 

> Added to system.policy:

> // Grant WebApps All Permission

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

>     permission java.security.AllPermission; };

> 

> Added to catalina.policy:

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

>     java.io.FilePermission 

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

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

> 

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

>     permission java.security.AllPermission; };

> 

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

>          permission java.lang.RuntimePermission 

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

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

> 

>  





--

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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   -

-                                                               -

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

This message is copyright PD Inc, subject to license 20080407P00.







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