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annotate src/org/eclipse/jetty/server/ssl/ServletSSL.java @ 963:4b6216fa9cec

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replace SelectChannelEndPoint._state with isDispatched
author Franklin Schmidt <fschmidt@gmail.com>
date Fri, 14 Oct 2016 00:15:28 -0600
parents 3428c60d7cfc
children
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1 //
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2 // ========================================================================
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3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
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4 // ------------------------------------------------------------------------
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5 // All rights reserved. This program and the accompanying materials
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6 // are made available under the terms of the Eclipse Public License v1.0
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7 // and Apache License v2.0 which accompanies this distribution.
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8 //
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9 // The Eclipse Public License is available at
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10 // http://www.eclipse.org/legal/epl-v10.html
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11 //
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12 // The Apache License v2.0 is available at
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13 // http://www.opensource.org/licenses/apache2.0.php
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14 //
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15 // You may elect to redistribute this code under either of these licenses.
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16 // ========================================================================
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17 //
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18
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19 package org.eclipse.jetty.server.ssl;
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20
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21 /* --------------------------------------------------------------------- */
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22 /**
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23 * Jetty Servlet SSL support utilities.
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24 * <p>
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25 * A collection of utilities required to support the SSL requirements of the Servlet 2.2 and 2.3
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26 * specs.
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27 *
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28 * <p>
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29 * Used by the SSL listener classes.
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30 *
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31 *
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32 */
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33 public class ServletSSL
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34 {
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35 /* ------------------------------------------------------------ */
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36 /**
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37 * Given the name of a TLS/SSL cipher suite, return an int representing it effective stream
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38 * cipher key strength. i.e. How much entropy material is in the key material being fed into the
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39 * encryption routines.
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40 *
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41 * <p>
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42 * This is based on the information on effective key lengths in RFC 2246 - The TLS Protocol
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43 * Version 1.0, Appendix C. CipherSuite definitions:
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44 *
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45 * <pre>
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46 * Effective
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47 * Cipher Type Key Bits
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48 *
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49 * NULL * Stream 0
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50 * IDEA_CBC Block 128
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51 * RC2_CBC_40 * Block 40
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52 * RC4_40 * Stream 40
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53 * RC4_128 Stream 128
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54 * DES40_CBC * Block 40
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55 * DES_CBC Block 56
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56 * 3DES_EDE_CBC Block 168
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57 * </pre>
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58 *
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59 * @param cipherSuite String name of the TLS cipher suite.
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60 * @return int indicating the effective key entropy bit-length.
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61 */
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62 public static int deduceKeyLength(String cipherSuite)
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63 {
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64 // Roughly ordered from most common to least common.
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65 if (cipherSuite == null)
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66 return 0;
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67 else if (cipherSuite.indexOf("WITH_AES_256_") >= 0)
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68 return 256;
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69 else if (cipherSuite.indexOf("WITH_RC4_128_") >= 0)
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70 return 128;
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71 else if (cipherSuite.indexOf("WITH_AES_128_") >= 0)
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72 return 128;
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73 else if (cipherSuite.indexOf("WITH_RC4_40_") >= 0)
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74 return 40;
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75 else if (cipherSuite.indexOf("WITH_3DES_EDE_CBC_") >= 0)
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76 return 168;
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77 else if (cipherSuite.indexOf("WITH_IDEA_CBC_") >= 0)
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78 return 128;
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79 else if (cipherSuite.indexOf("WITH_RC2_CBC_40_") >= 0)
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80 return 40;
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81 else if (cipherSuite.indexOf("WITH_DES40_CBC_") >= 0)
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82 return 40;
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83 else if (cipherSuite.indexOf("WITH_DES_CBC_") >= 0)
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84 return 56;
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85 else
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86 return 0;
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87 }
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88 }