mirror of git://gcc.gnu.org/git/gcc.git
475 lines
14 KiB
Java
475 lines
14 KiB
Java
/* Alert.java -- SSL Alert message.
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is a part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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USA
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.javax.net.ssl.provider;
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import java.io.EOFException;
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import java.io.InputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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/**
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* An alert message in the SSL protocol. Alerts are sent both as warnings
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* which may allow execution to continue, or they may be fatal, which will
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* halt this session. An alert object is composed of two enums -- the level,
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* which indicates the seriousness of the alert, and the description, which
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* indicates the reason for the alert.
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*
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* <pre>
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* struct {
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* AlertLevel level;
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* AlertDescription description;
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* }
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* </pre>
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*/
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final class Alert implements Constructed
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{
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// Fields.
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// -------------------------------------------------------------------------
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/** The alert level enumerated. */
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private final Level level;
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/** The alert description enumerated. */
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private final Description description;
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// Constructor.
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// -------------------------------------------------------------------------
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Alert(Level level, Description description)
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{
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this.level = level;
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this.description = description;
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}
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// Class method.
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// -------------------------------------------------------------------------
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static Alert read(InputStream in) throws IOException
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{
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Level level = Level.read(in);
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Description desc = Description.read(in);
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return new Alert(level, desc);
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}
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static Alert forName(String name)
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{
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if (name == null)
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{
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return new Alert(Level.FATAL, Description.INTERNAL_ERROR);
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}
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Description desc = Description.INTERNAL_ERROR;
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if (name.equals("close_notify"))
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{
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desc = Description.CLOSE_NOTIFY;
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}
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else if (name.equals("unexpected_message"))
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{
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desc = Description.UNEXPECTED_MESSAGE;
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}
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else if (name.equals("bad_record_mac"))
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{
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desc = Description.BAD_RECORD_MAC;
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}
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else if (name.equals("DECRYPTION_FAILED"))
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{
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desc = Description.DECRYPTION_FAILED;
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}
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else if (name.equals("record_overflow"))
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{
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desc = Description.RECORD_OVERFLOW;
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}
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else if (name.equals("decompression_failure"))
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{
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desc = Description.DECOMPRESSION_FAILURE;
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}
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else if (name.equals("handshake_failure"))
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{
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desc = Description.HANDSHAKE_FAILURE;
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}
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else if (name.equals("no_certificate"))
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{
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desc = Description.NO_CERTIFICATE;
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}
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else if (name.equals("bad_certificate"))
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{
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desc = Description.BAD_CERTIFICATE;
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}
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else if (name.equals("unsupported_certificate"))
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{
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desc = Description.UNSUPPORTED_CERTIFICATE;
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}
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else if (name.equals("certificate_revoked"))
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{
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desc = Description.CERTIFICATE_REVOKED;
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}
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else if (name.equals("certificate_expired"))
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{
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desc = Description.CERTIFICATE_EXPIRED;
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}
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else if (name.equals("certificate_unknown"))
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{
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desc = Description.CERTIFICATE_UNKNOWN;
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}
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else if (name.equals("illegal_parameter"))
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{
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desc = Description.ILLEGAL_PARAMETER;
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}
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else if (name.equals("unknown_ca"))
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{
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desc = Description.UNKNOWN_CA;
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}
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else if (name.equals("access_denied"))
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{
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desc = Description.ACCESS_DENIED;
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}
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else if (name.equals("decode_error"))
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{
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desc = Description.DECODE_ERROR;
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}
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else if (name.equals("decrypt_error"))
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{
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desc = Description.DECRYPT_ERROR;
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}
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else if (name.equals("export_restriction"))
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{
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desc = Description.EXPORT_RESTRICTION;
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}
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else if (name.equals("protocol_version"))
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{
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desc = Description.PROTOCOL_VERSION;
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}
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else if (name.equals("insufficient_security"))
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{
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desc = Description.INSUFFICIENT_SECURITY;
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}
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else if (name.equals("internal_error"))
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{
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desc = Description.INTERNAL_ERROR;
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}
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else if (name.equals("user_canceled"))
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{
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desc = Description.USER_CANCELED;
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}
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else if (name.equals("no_renegotiation"))
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{
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desc = Description.NO_RENEGOTIATION;
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}
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else if (name.equals("unsupported_extension"))
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{
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desc = Description.UNSUPPORTED_EXTENSION;
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}
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else if (name.equals("certificate_unobtainable"))
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{
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desc = Description.CERTIFICATE_UNOBTAINABLE;
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}
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else if (name.equals("unrecognized_name"))
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{
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desc = Description.UNRECOGNIZED_NAME;
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}
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else if (name.equals("bad_certificate_status_response"))
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{
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desc = Description.BAD_CERTIFICATE_STATUS_RESPONSE;
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}
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else if (name.equals("bad_certificate_hash_value"))
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{
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desc = Description.BAD_CERTIFICATE_HASH_VALUE;
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}
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else if (name.equals("unknown_srp_username"))
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{
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desc = Description.UNKNOWN_SRP_USERNAME;
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}
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else if (name.equals("missing_srp_username"))
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{
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desc = Description.MISSING_SRP_USERNAME;
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}
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return new Alert(Level.FATAL, desc);
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}
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// Instance methods.
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// -------------------------------------------------------------------------
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public void write(OutputStream out) throws IOException
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{
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out.write((byte) level.getValue());
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out.write((byte) description.getValue());
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}
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byte[] getEncoded()
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{
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return new byte[] { (byte) level.getValue(),
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(byte) description.getValue() };
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}
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Level getLevel()
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{
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return level;
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}
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Description getDescription()
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{
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return description;
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}
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public String toString()
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{
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String nl = System.getProperty("line.separator");
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return "struct {" + nl +
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" level = " + level + ";" + nl +
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" description = " + description + ";" + nl +
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"} Alert;" + nl;
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}
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// Inner classes.
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// -------------------------------------------------------------------------
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/**
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* The level enumeration.
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*
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* <pre>
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* enum { warning(1), fatal(2), (255) } AlertLevel;
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* </pre>
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*/
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static final class Level implements Enumerated
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{
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// Constants and fields.
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// -----------------------------------------------------------------------
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static final Level WARNING = new Level(1), FATAL = new Level(2);
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private final int value;
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// Constructor.
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// -----------------------------------------------------------------------
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private Level(int value)
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{
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this.value = value;
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}
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// Class method.
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// -----------------------------------------------------------------------
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static Level read(InputStream in) throws IOException
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{
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int i = in.read();
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if (i == -1)
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{
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throw new EOFException("unexpected end of stream");
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}
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switch (i & 0xFF)
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{
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case 1: return WARNING;
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case 2: return FATAL;
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default: return new Level(i);
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}
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}
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// Instance methods.
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// -----------------------------------------------------------------------
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public byte[] getEncoded()
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{
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return new byte[] { (byte) value };
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}
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public int getValue()
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{
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return value;
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}
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public String toString()
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{
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switch (value)
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{
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case 1: return "warning";
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case 2: return "fatal";
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default: return "unknown(" + value + ")";
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}
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}
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}
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/**
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* The description enumeration.
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*/
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static final class Description implements Enumerated
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{
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// Constants and fields.
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// -----------------------------------------------------------------------
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static final Description
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CLOSE_NOTIFY = new Description( 0),
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UNEXPECTED_MESSAGE = new Description( 10),
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BAD_RECORD_MAC = new Description( 20),
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DECRYPTION_FAILED = new Description( 21),
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RECORD_OVERFLOW = new Description( 22),
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DECOMPRESSION_FAILURE = new Description( 30),
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HANDSHAKE_FAILURE = new Description( 40),
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NO_CERTIFICATE = new Description( 41),
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BAD_CERTIFICATE = new Description( 42),
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UNSUPPORTED_CERTIFICATE = new Description( 43),
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CERTIFICATE_REVOKED = new Description( 44),
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CERTIFICATE_EXPIRED = new Description( 45),
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CERTIFICATE_UNKNOWN = new Description( 46),
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ILLEGAL_PARAMETER = new Description( 47),
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UNKNOWN_CA = new Description( 48),
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ACCESS_DENIED = new Description( 49),
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DECODE_ERROR = new Description( 50),
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DECRYPT_ERROR = new Description( 51),
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EXPORT_RESTRICTION = new Description( 60),
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PROTOCOL_VERSION = new Description( 70),
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INSUFFICIENT_SECURITY = new Description( 71),
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INTERNAL_ERROR = new Description( 80),
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USER_CANCELED = new Description( 90),
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NO_RENEGOTIATION = new Description(100),
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UNSUPPORTED_EXTENSION = new Description(110),
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CERTIFICATE_UNOBTAINABLE = new Description(111),
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UNRECOGNIZED_NAME = new Description(112),
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BAD_CERTIFICATE_STATUS_RESPONSE = new Description(113),
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BAD_CERTIFICATE_HASH_VALUE = new Description(114),
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UNKNOWN_SRP_USERNAME = new Description(120),
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MISSING_SRP_USERNAME = new Description(121);
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private final int value;
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// Constructor.
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// -----------------------------------------------------------------------
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private Description(int value)
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{
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this.value = value;
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}
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// Class method.
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// -----------------------------------------------------------------------
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static Description read(InputStream in) throws IOException
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{
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int i = in.read();
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if (i == -1)
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{
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throw new EOFException("unexpected end of input stream");
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}
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switch (i)
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{
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case 0: return CLOSE_NOTIFY;
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case 10: return UNEXPECTED_MESSAGE;
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case 20: return BAD_RECORD_MAC;
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case 21: return DECRYPTION_FAILED;
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case 22: return RECORD_OVERFLOW;
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case 30: return DECOMPRESSION_FAILURE;
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case 40: return HANDSHAKE_FAILURE;
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case 41: return NO_CERTIFICATE;
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case 42: return BAD_CERTIFICATE;
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case 43: return UNSUPPORTED_CERTIFICATE;
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case 44: return CERTIFICATE_REVOKED;
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case 45: return CERTIFICATE_EXPIRED;
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case 46: return CERTIFICATE_UNKNOWN;
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case 47: return ILLEGAL_PARAMETER;
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case 48: return UNKNOWN_CA;
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case 49: return ACCESS_DENIED;
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case 50: return DECODE_ERROR;
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case 51: return DECRYPT_ERROR;
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case 60: return EXPORT_RESTRICTION;
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case 70: return PROTOCOL_VERSION;
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case 71: return INSUFFICIENT_SECURITY;
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case 80: return INTERNAL_ERROR;
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case 90: return USER_CANCELED;
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case 100: return NO_RENEGOTIATION;
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case 120: return UNKNOWN_SRP_USERNAME;
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case 121: return MISSING_SRP_USERNAME;
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default: return new Description(i);
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}
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}
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// Instance methods.
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// -----------------------------------------------------------------------
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public byte[] getEncoded()
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{
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return new byte[] { (byte) value };
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}
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public int getValue()
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{
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return value;
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}
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public String toString()
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{
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switch (value)
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{
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case 0: return "close_notify";
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case 10: return "unexpected_message";
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case 20: return "bad_record_mac";
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case 21: return "decryption_failed";
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case 22: return "record_overflow";
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case 30: return "decompression_failure";
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case 40: return "handshake_failure";
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case 42: return "bad_certificate";
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case 43: return "unsupported_certificate";
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case 44: return "certificate_revoked";
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case 45: return "certificate_expired";
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case 46: return "certificate_unknown";
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case 47: return "illegal_parameter";
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case 48: return "unknown_ca";
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case 49: return "access_denied";
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case 50: return "decode_error";
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case 51: return "decrypt_error";
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case 60: return "export_restriction";
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case 70: return "protocol_version";
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case 71: return "insufficient_security";
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case 80: return "internal_error";
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case 90: return "user_canceled";
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case 100: return "no_renegotiation";
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case 110: return "unsupported_extension";
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case 111: return "certificate_unobtainable";
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case 112: return "unrecognized_name";
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case 113: return "bad_certificate_status_response";
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case 114: return "bad_certificate_hash_value";
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case 120: return "unknown_srp_username";
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case 121: return "missing_srp_username";
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default: return "unknown(" + value + ")";
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}
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}
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}
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}
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