static String mapHostToRealm(String name) {
String result = null;
try {
String subname = null;
Config c = Config.getInstance();
if ((result = c.get("domain_realm", name)) != null) return result;
else {
for (int i = 1; i < name.length(); i++) {
if ((name.charAt(i) == '.')
&& (i != name.length() - 1)) { // mapping could be .ibm.com = AUSTIN.IBM.COM
subname = name.substring(i);
result = c.get("domain_realm", subname);
if (result != null) {
break;
} else {
subname = name.substring(i + 1); // or mapping could be ibm.com = AUSTIN.IBM.COM
result = c.get("domain_realm", subname);
if (result != null) {
break;
}
}
}
}
}
} catch (KrbException e) {
}
return result;
}
/** Deletes an entry from the key table. */
void deleteEntry() {
PrincipalName pname = null;
try {
pname = new PrincipalName(principal);
if (pname.getRealm() == null) {
pname.setRealm(Config.getInstance().getDefaultRealm());
}
String answer;
BufferedReader cis = new BufferedReader(new InputStreamReader(System.in));
System.out.print(
"Are you sure you want to "
+ " delete service key for "
+ pname.toString()
+ " in "
+ table.tabName()
+ "?(Y/N) :");
System.out.flush();
answer = cis.readLine();
if (answer.equalsIgnoreCase("Y") || answer.equalsIgnoreCase("Yes")) ;
else {
// no error, the user did not want to delete the entry
System.exit(0);
}
} catch (KrbException e) {
System.err.println("Error occured while deleting the entry. " + "Deletion failed.");
e.printStackTrace();
System.exit(-1);
} catch (IOException e) {
System.err.println("Error occured while deleting the entry. " + " Deletion failed.");
e.printStackTrace();
System.exit(-1);
}
// admin.deleteEntry(pname);
table.deleteEntry(pname);
try {
table.save();
} catch (IOException e) {
System.err.println("Error occurs while saving the keytab." + "Deletion fails.");
e.printStackTrace();
System.exit(-1);
}
System.out.println("Done!");
}
/**
* Adds a service key to key table. If the specified key table does not exist, the program will
* automatically generate a new key table.
*/
void addEntry() {
PrincipalName pname = null;
try {
pname = new PrincipalName(principal);
if (pname.getRealm() == null) {
pname.setRealm(Config.getInstance().getDefaultRealm());
}
} catch (KrbException e) {
System.err.println("Failed to add " + principal + " to keytab.");
e.printStackTrace();
System.exit(-1);
}
if (password == null) {
try {
BufferedReader cis = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Password for " + pname.toString() + ":");
System.out.flush();
password = new StringBuffer().append(cis.readLine());
} catch (IOException e) {
System.err.println("Failed to read the password.");
e.printStackTrace();
System.exit(-1);
}
}
try {
// admin.addEntry(pname, password);
table.addEntry(pname, password);
// admin.save();
table.save();
System.out.println("Done!");
System.out.println("Service key for " + principal + " is saved in " + table.tabName());
} catch (KrbCryptoException e) {
System.err.println("Failed to add " + principal + " to keytab.");
e.printStackTrace();
System.exit(-1);
} catch (IOException e) {
System.err.println("Failed to save new entry.");
e.printStackTrace();
System.exit(-1);
}
}