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From "Gaurav Singhal (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HTTPCLIENT-1067) Cross realm authentication doesn't work
Date Sat, 05 Mar 2011 10:02:46 GMT

     [ https://issues.apache.org/jira/browse/HTTPCLIENT-1067?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gaurav Singhal updated HTTPCLIENT-1067:
---------------------------------------

    Attachment: NegotiateScheme.java

File containing required changes to work in cross-realm environment.

> Cross realm authentication doesn't work
> ---------------------------------------
>
>                 Key: HTTPCLIENT-1067
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1067
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpClient
>    Affects Versions: 4.1 Final
>            Reporter: Gaurav Singhal
>              Labels: httpclient
>         Attachments: NegotiateScheme.java
>
>
> Cross realm authentication doesn't work because of incomplete server SPN passed into
GSS-API.
> Class Name: NegotiateScheme
> Line # 205 (GSSName serverName = manager.createName("HTTP/" + authServer, null);)
> This piece of code doesn't append the server realm while creating name. Because of null
server realm, jdk always append default realm by reading krb5.conf file. but there can be
case where server realm is different than default realm configured in krb5.conf file.
> Modified code:
> ----------------------------------------------------------------------------------------------------------------------------------------
> String strServerName = Krb5Utility.mapDomainToRealm(authServer);
> strServerName = strServerName == null ? "" : ("@" + strServerName);
> GSSName serverName = manager.createName("HTTP/" + authServer + strServerName, null);
> ----------------------------------------------------------------------------------------------------------------------------------------
> Krb5Utility.mapDomainToRealm method code
> ----------------------------------------------------------------------------------------------------------------------------------------
> public static String mapDomainToRealm(String name) {
> 	String result = null;
> 	try {
> 		String subname = null;
> 		Config c = Config.getInstance();
> 		if ((result = c.getDefault(name, "domain_realm")) != null)
> 			return result;
> 		else {
> 			for (int i = 1; i < name.length(); i++) {
> 				// mapping could be .ibm.com = AUSTIN.IBM.COM
> 				if ((name.charAt(i) == '.') && (i != name.length() - 1)) {
> 					subname = name.substring(i);
> 					result = c.getDefault(subname, "domain_realm");
> 					if (result != null) {
> 						break;
> 					} else {
> 						// or mapping could be ibm.com = AUSTIN.IBM.COM
> 						subname = name.substring(i + 1);
> 						result = c.getDefault(subname, "domain_realm");
> 						if (result != null) {
> 							break;
> 						}
> 					}
> 				}
> 			}
> 		}
> 	} catch (KrbException e) {
> 	}
> 	return result;
> }
> ----------------------------------------------------------------------------------------------------------------------------------------

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