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Diffstat (limited to 'gnu/javax/crypto/sasl/anonymous/AnonymousUtil.java')
| -rw-r--r-- | gnu/javax/crypto/sasl/anonymous/AnonymousUtil.java | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/gnu/javax/crypto/sasl/anonymous/AnonymousUtil.java b/gnu/javax/crypto/sasl/anonymous/AnonymousUtil.java new file mode 100644 index 000000000..99e95eaec --- /dev/null +++ b/gnu/javax/crypto/sasl/anonymous/AnonymousUtil.java @@ -0,0 +1,109 @@ +/* AnonymousUtil.java -- + Copyright (C) 2003, 2006 Free Software Foundation, Inc. + +This file is a part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at +your option) any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 +USA + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.javax.crypto.sasl.anonymous; + +import gnu.javax.crypto.sasl.SaslUtil; + +/** + * An ANONYMOUS-specific utility class. + */ +public class AnonymousUtil +{ + + // Constants and variables + // ------------------------------------------------------------------------- + + // Constructor(s) + // ------------------------------------------------------------------------- + + /** Trivial private constructor to enforce Singleton pattern. */ + private AnonymousUtil() + { + super(); + } + + // Class methods + // ------------------------------------------------------------------------- + + static boolean isValidTraceInformation(String traceInformation) + { + if (traceInformation == null) + { + return false; + } + if (traceInformation.length() == 0) + { + return true; + } + if (SaslUtil.validEmailAddress(traceInformation)) + { + return true; + } + return isValidToken(traceInformation); + } + + static boolean isValidToken(String token) + { + if (token == null) + { + return false; + } + if (token.length() == 0) + { + return false; + } + if (token.length() > 255) + { + return false; + } + if (token.indexOf('@') != -1) + { + return false; + } + for (int i = 0; i < token.length(); i++) + { + char c = token.charAt(i); + if (c < 0x20 || c > 0x7E) + { + return false; + } + } + return true; + } +}
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