The gLite API – PART I

Giuseppe LA ROCCA INFN Cataniagiuseppe.larocca@ct.infn.it

Master Class for Life Science,4-6 May 2010 Singapore

VOMS J a v a A P I

(ver 1.8.12-1)

Software RequirementsJava Classes

org.glite.security.voms.contact.VOMSServerInfoorg.glite.security.voms.contact.VOMSProxyInit

org.glite.security.voms.contact.VOMSRequestOptionst

Hands-on

Installing the Java API

• The needed libraries to interact with the VOMS server are: – glite-security-voms.jar– bcprov.jar– log4j.jar– cog-jglobus.jar– common-lang.jar– common-cli.jar– glite-security-utils.jar– commons-logging-api.jar– puretls.jar– cryptix.jar– cryptix32.jar– cryptix-asn1.jar

W A R N I N G Make sure all the listed

jar(s) are included in your CLASSPATH

environment variable !!

Installing the Java API

NOTE: There are conflicts with glite-security-voms.jar when

using glite-security-utils.jar which should be located after

glite-security-voms.jar in the CLASSPATH environment

variable. The conflicting classes that are the ones contained in

the both packages are of older version.

These libraries can be downloaded from here

Before we begin with the proxy generation, we need to specify the following System properties. If omitted the default values are used.

Configure System properties

• Configure the VOMS Server settings using the Java class org.glite.security.voms.contact.VOMSServerInfo

Configure VOMS Server settings

• The main Java class of this API is: org.glite.security.voms.contact.VOMSProxyInit

• A client object can be created providing to the constructor a password for the opening of the user certificate:

public static VOMSProxyInit instance(String privateKeyPassword)

Instantiate the class

Parameters and Methods /1• After the generation of the VOMSProxyInit object class, we need to specify

additional parameters for the proxy generation.

Parameters and Methods /2

Parameters and Methods /3

Links and References

VOMS Proxy using Java APIhttp://wiki.egee-see.org/index.php/SG_Generating_VOMS_Proxy_Using_Java_API

http://www.euasiagrid.org/wiki/index.php/VOMS_Java_API

Hands-on

• Connect to the training infrastructure using the information reported in the tutorial sheet

• Run the hands-on available in this web link: http://www.euasiagrid.org/wiki/index.php/VOMS_Java_API

User Interface: glite-tutor.ct.infn.itAccounts:

– Username: singapore02-singapore39– Password: GridSIN02-GridSIN39– PassPhrase: SINGAPORE

$ cd ${HOME}/Api-Java-VOMSTo compile and run the example:$ source VOMSProxyInitCreation.sh