src/java.base/share/classes/sun/security/ssl/CipherSuiteList.java
branchJDK-8145252-TLS13-branch
changeset 56542 56aaa6cb3693
parent 56541 92cbbfc996f3
child 56543 2352538d2f6e
--- a/src/java.base/share/classes/sun/security/ssl/CipherSuiteList.java	Fri May 11 14:55:56 2018 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,187 +0,0 @@
-/*
- * Copyright (c) 2002, 2017, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code 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
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-
-package sun.security.ssl;
-
-import java.io.*;
-import java.util.*;
-
-import javax.net.ssl.SSLException;
-import static sun.security.ssl.NamedGroupType.*;
-
-/**
- * A list of CipherSuites. Also maintains the lists of supported and
- * default ciphersuites and supports I/O from handshake streams.
- *
- * Instances of this class are immutable.
- *
- */
-final class CipherSuiteList {
-
-    private final Collection<CipherSuite> cipherSuites;
-    private String[] suiteNames;
-    private final EnumSet<NamedGroupType> groupsTypes =
-            EnumSet.noneOf(NamedGroupType.class);
-
-    // for use by buildAvailableCache() and
-    // Handshaker.getKickstartMessage() only
-    CipherSuiteList(Collection<CipherSuite> cipherSuites) {
-        this.cipherSuites = cipherSuites;
-        for (CipherSuite suite : cipherSuites) {
-            updateGroupTypes(suite);
-        }
-    }
-
-    /**
-     * Create a CipherSuiteList with a single element.
-     */
-    CipherSuiteList(CipherSuite suite) {
-        cipherSuites = new ArrayList<CipherSuite>(1);
-        cipherSuites.add(suite);
-        updateGroupTypes(suite);
-    }
-
-    /**
-     * Construct a CipherSuiteList from a array of names. We don't bother
-     * to eliminate duplicates.
-     *
-     * @exception IllegalArgumentException if the array or any of its elements
-     * is null or if the ciphersuite name is unrecognized or unsupported
-     * using currently installed providers.
-     */
-    CipherSuiteList(String[] names) {
-        if (names == null) {
-            throw new IllegalArgumentException("CipherSuites may not be null");
-        }
-        cipherSuites = new ArrayList<CipherSuite>(names.length);
-        for (int i = 0; i < names.length; i++) {
-            String suiteName = names[i];
-            CipherSuite suite = CipherSuite.valueOf(suiteName);
-            if (suite.isAvailable() == false) {
-                throw new IllegalArgumentException("Cannot support "
-                    + suiteName + " with currently installed providers");
-            }
-            cipherSuites.add(suite);
-            updateGroupTypes(suite);
-        }
-    }
-
-    /**
-     * Read a CipherSuiteList from a HandshakeInStream in V3 ClientHello
-     * format. Does not check if the listed ciphersuites are known or
-     * supported.
-     */
-    CipherSuiteList(HandshakeInStream in) throws IOException {
-        byte[] bytes = in.getBytes16();
-        if ((bytes.length & 1) != 0) {
-            throw new SSLException("Invalid ClientHello message");
-        }
-        cipherSuites = new ArrayList<CipherSuite>(bytes.length >> 1);
-        for (int i = 0; i < bytes.length; i += 2) {
-            CipherSuite suite = CipherSuite.valueOf(bytes[i], bytes[i+1]);
-            cipherSuites.add(suite);
-            updateGroupTypes(suite);
-        }
-    }
-
-    // Please don't use this method except constructors.
-    private void updateGroupTypes(CipherSuite cipherSuite) {
-        if (cipherSuite.keyExchange != null && (!cipherSuite.exportable)) {
-            NamedGroupType groupType = cipherSuite.keyExchange.groupType;
-            if ((groupType != NAMED_GROUP_NONE) &&
-                    (!groupsTypes.contains(groupType))) {
-                groupsTypes.add(groupType);
-            }
-        }
-    }
-
-    /**
-     * Return whether this list contains the given CipherSuite.
-     */
-    boolean contains(CipherSuite suite) {
-        return cipherSuites.contains(suite);
-    }
-
-    // Return whether this list contains cipher suites of a named group type.
-    boolean contains(NamedGroupType groupType) {
-        return groupsTypes.contains(groupType);
-    }
-
-    /**
-     * Return an Iterator for the CipherSuites in this list.
-     */
-    Iterator<CipherSuite> iterator() {
-        return cipherSuites.iterator();
-    }
-
-    /**
-     * Return a reference to the internal Collection of CipherSuites.
-     * The Collection MUST NOT be modified.
-     */
-    Collection<CipherSuite> collection() {
-        return cipherSuites;
-    }
-
-    /**
-     * Return the number of CipherSuites in this list.
-     */
-    int size() {
-        return cipherSuites.size();
-    }
-
-    /**
-     * Return an array with the names of the CipherSuites in this list.
-     */
-    synchronized String[] toStringArray() {
-        if (suiteNames == null) {
-            suiteNames = new String[cipherSuites.size()];
-            int i = 0;
-            for (CipherSuite c : cipherSuites) {
-                suiteNames[i++] = c.name;
-            }
-        }
-        return suiteNames.clone();
-    }
-
-    @Override
-    public String toString() {
-        return cipherSuites.toString();
-    }
-
-    /**
-     * Write this list to an HandshakeOutStream in V3 ClientHello format.
-     */
-    void send(HandshakeOutStream s) throws IOException {
-        byte[] suiteBytes = new byte[cipherSuites.size() * 2];
-        int i = 0;
-        for (CipherSuite c : cipherSuites) {
-            suiteBytes[i] = (byte)(c.id >> 8);
-            suiteBytes[i+1] = (byte)c.id;
-            i += 2;
-        }
-        s.putBytes16(suiteBytes);
-    }
-}