public synchronized GSSNameSpi getElement(Oid mechOid) throws GSSException {
GSSNameSpi retVal = elements.get(mechOid);
if (retVal == null) {
if (appNameStr != null) {
retVal = gssManager.getNameElement(appNameStr, appNameType, mechOid);
} else {
retVal = gssManager.getNameElement(appNameBytes, appNameType, mechOid);
}
elements.put(mechOid, retVal);
}
return retVal;
}
/**
* This method may return false negatives. But if it says two names are equals, then there is some
* mechanism that authenticates them as the same principal.
*/
public boolean equals(GSSName other) throws GSSException {
if (this.isAnonymous() || other.isAnonymous()) return false;
if (other == this) return true;
if (!(other instanceof GSSNameImpl))
return equals(gssManager.createName(other.toString(), other.getStringNameType()));
/*
* XXX Do a comparison of the appNameStr/appNameBytes if
* available. If that fails, then proceed with this test.
*/
GSSNameImpl that = (GSSNameImpl) other;
GSSNameSpi myElement = this.mechElement;
GSSNameSpi element = that.mechElement;
/*
* XXX If they are not of the same mechanism type, convert both to
* Kerberos since it is guaranteed to be present.
*/
if ((myElement == null) && (element != null)) {
myElement = this.getElement(element.getMechanism());
} else if ((myElement != null) && (element == null)) {
element = that.getElement(myElement.getMechanism());
}
if (myElement != null && element != null) {
return myElement.equals(element);
}
if ((this.appNameType != null) && (that.appNameType != null)) {
if (!this.appNameType.equals(that.appNameType)) {
return false;
}
byte[] myBytes = null;
byte[] bytes = null;
try {
myBytes = (this.appNameStr != null ? this.appNameStr.getBytes("UTF-8") : this.appNameBytes);
bytes = (that.appNameStr != null ? that.appNameStr.getBytes("UTF-8") : that.appNameBytes);
} catch (UnsupportedEncodingException e) {
// Won't happen
}
return Arrays.equals(myBytes, bytes);
}
return false;
}
private void init(GSSManagerImpl gssManager, Object appName, Oid appNameType, Oid mech)
throws GSSException {
this.gssManager = gssManager;
this.elements = new HashMap<Oid, GSSNameSpi>(gssManager.getMechs().length);
if (appName instanceof String) {
this.appNameStr = (String) appName;
/*
* If appNameType is null, then the nametype for this printable
* string is determined only by interrogating the
* mechanism. Thus, defer the setting of printableName and
* printableNameType till later.
*/
if (appNameType != null) {
printableName = appNameStr;
printableNameType = appNameType;
}
} else {
this.appNameBytes = (byte[]) appName;
}
this.appNameType = appNameType;
mechElement = getElement(mech);
/*
* printableName will be null if appName was in a byte[] or if
* appName was in a String but appNameType was null.
*/
if (printableName == null) {
printableName = mechElement.toString();
printableNameType = mechElement.getStringNameType();
}
/*
* At this point the GSSNameImpl has the following set:
* appNameStr or appNameBytes
* appNameType (could be null)
* printableName
* printableNameType
* mechElement (which also exists in the hashmap of elements)
*/
}