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[Pljava-dev] PostgresSQL 8.4 PL/Java IO access issue.
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* [Pljava-dev] PostgresSQL 8.4 PL/Java IO access issue.
@ 2011-09-04 10:19  
  0 siblings, 1 reply; 3+ messages in thread

From:  @ 2011-09-04 10:19 UTC (permalink / raw)


Hello,

I am attempting to create a simple PL/Java function that checks where a file
exists or not but I am getting an IO error.  Are there any security switches
I need to set when creating the PL/Java function or is there anything else I
am missing?

Code below...

Many thanks,
Marc :-)

//Java Code
public class FileExists
{
     public static boolean checkFile (String input) throws Exception
  {
  String errorMessage;

  try
  {
   // Check file exists and pass the value back thru the OUT paramenter

   File f = new File(input);

   return (f.exists());

  }
  catch (SecurityException ioe)
  {
   errorMessage = ioe.getMessage();
   throw new Exception( errorMessage + " FAILED" );
  }
 }
}


-- PL/Java Wrapper Fuction 
CREATE FUNCTION fileexists(character varying) RETURNS boolean
    LANGUAGE java
    AS $$FileExists.checkFile(java.lang.String)$$;

--Results
mydb=# select fileexists('/home/postgres/myfile.txt');
ERROR:  java.lang.Exception: read on /home/postgres/myfile.txt FAILED



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* [Pljava-dev] PostgresSQL 8.4 PL/Java IO access issue.
@ 2011-09-04 21:42  
  parent: 
  0 siblings, 1 reply; 3+ messages in thread

From:  @ 2011-09-04 21:42 UTC (permalink / raw)

marc_firth <marc.r.firth at gmail.com> writes:

>
> -- PL/Java Wrapper Fuction 
> CREATE FUNCTION fileexists(character varying) RETURNS boolean
>     LANGUAGE java
>     AS $$FileExists.checkFile(java.lang.String)$$;

Use javau as the language.  Then you don't have a security manager.

-- 
   Johann Oskarsson                http://www.2ndquadrant.com/    |[]
   PostgreSQL Development, 24x7 Support, Training and Services  --+--
                                                                  |
   Blog: http://my.opera.com/myrkraverk/blog/





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* [Pljava-dev] PostgresSQL 8.4 PL/Java IO access issue.
@ 2011-09-05 21:30  
  parent: 
  0 siblings, 0 replies; 3+ messages in thread

From:  @ 2011-09-05 21:30 UTC (permalink / raw)

Thanks!  Setting to the untrusted language javaU works perfect :)

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