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Diffstat (limited to 'libjava/classpath/gnu/javax/crypto/keyring/BaseKeyring.java')
| -rw-r--r-- | libjava/classpath/gnu/javax/crypto/keyring/BaseKeyring.java | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/crypto/keyring/BaseKeyring.java b/libjava/classpath/gnu/javax/crypto/keyring/BaseKeyring.java new file mode 100644 index 00000000000..5fe7dbf4deb --- /dev/null +++ b/libjava/classpath/gnu/javax/crypto/keyring/BaseKeyring.java @@ -0,0 +1,198 @@ +/* BaseKeyring.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.keyring; + +import java.io.InputStream; +import java.io.IOException; +import java.io.OutputStream; + +import java.util.Enumeration; +import java.util.List; +import java.util.Map; +import java.util.StringTokenizer; + +import gnu.java.security.Registry; + +public abstract class BaseKeyring implements IKeyring +{ + + // Fields. + // ------------------------------------------------------------------------ + + /** + * The top-level keyring data. + */ + protected PasswordAuthenticatedEntry keyring; + + protected CompressedEntry keyring2; + + // Constructors. + // ------------------------------------------------------------------------ + + public BaseKeyring() + { + } + + // Instance methods. + // ------------------------------------------------------------------------ + + public void load(Map attributes) throws IOException + { + InputStream in = (InputStream) attributes.get(KEYRING_DATA_IN); + if (in == null) + { + throw new IllegalArgumentException("no input stream"); + } + char[] password = (char[]) attributes.get(KEYRING_PASSWORD); + if (password == null) + { + password = new char[0]; + } + + if (in.read() != Registry.GKR_MAGIC[0] + || in.read() != Registry.GKR_MAGIC[1] + || in.read() != Registry.GKR_MAGIC[2] + || in.read() != Registry.GKR_MAGIC[3]) + { + throw new MalformedKeyringException("magic"); + } + + load(in, password); + + List l = keyring.getEntries(); + if (l.size() == 1 && (l.get(0) instanceof CompressedEntry)) + { + keyring2 = (CompressedEntry) l.get(0); + } + } + + public void store(Map attributes) throws IOException + { + OutputStream out = (OutputStream) attributes.get(KEYRING_DATA_OUT); + if (out == null) + { + throw new IllegalArgumentException("no output stream"); + } + char[] password = (char[]) attributes.get(KEYRING_PASSWORD); + if (password == null) + { + password = new char[0]; + } + if (keyring == null) + { + throw new IllegalStateException("empty keyring"); + } + + out.write(Registry.GKR_MAGIC); + store(out, password); + } + + public void reset() + { + keyring = null; + } + + public int size() + { + if (keyring == null) + { + throw new IllegalStateException ("keyring not loaded"); + } + return ((StringTokenizer) aliases()).countTokens(); + } + + public Enumeration aliases() + { + if (keyring == null) + { + throw new IllegalStateException ("keyring not loaded"); + } + return new StringTokenizer(keyring.getAliasList(), ";"); + } + + public boolean containsAlias(String alias) + { + if (keyring == null) + { + throw new IllegalStateException("keyring not loaded"); + } + return keyring.containsAlias(alias); + } + + public List get(String alias) + { + if (keyring == null) + { + throw new IllegalStateException("keyring not loaded"); + } + return keyring.get(alias); + } + + public void add(Entry entry) + { + if (keyring == null) + { + throw new IllegalStateException("keyring not loaded"); + } + if (keyring2 != null) + keyring2.add(entry); + else + keyring.add(entry); + } + + public void remove(String alias) + { + if (keyring == null) + { + throw new IllegalStateException("keyring not loaded"); + } + keyring.remove(alias); + } + + protected String fixAlias(String alias) + { + return alias.replace(';', '_'); + } + + protected abstract void load(InputStream in, char[] password) + throws IOException; + + protected abstract void store(OutputStream out, char[] password) + throws IOException; +} |