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From "Oleg Kalnichevski (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HTTPCLIENT-1067) Cross realm authentication doesn't work
Date Sat, 05 Mar 2011 10:26:46 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-1067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13002960#comment-13002960
] 

Oleg Kalnichevski commented on HTTPCLIENT-1067:
-----------------------------------------------

Gaurav

Would it be a big deal for you to create a diff file with the changes?

Oleg 

> 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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