J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.security.smartcardio; |
| 27 | |
| 28 | import java.util.*; |
| 29 | |
| 30 | import javax.smartcardio.*; |
| 31 | |
| 32 | import static sun.security.smartcardio.PCSC.*; |
| 33 | |
| 34 | /** |
| 35 | * CardTerminal implementation. |
| 36 | * |
| 37 | * @since 1.6 |
| 38 | * @author Andreas Sterbenz |
| 39 | */ |
| 40 | final class TerminalImpl extends CardTerminal { |
| 41 | |
| 42 | // native SCARDCONTEXT |
| 43 | final long contextId; |
| 44 | |
| 45 | // the name of this terminal (native PC/SC name) |
| 46 | final String name; |
| 47 | |
| 48 | private CardImpl card; |
| 49 | |
| 50 | TerminalImpl(long contextId, String name) { |
| 51 | this.contextId = contextId; |
| 52 | this.name = name; |
| 53 | } |
| 54 | |
| 55 | public String getName() { |
| 56 | return name; |
| 57 | } |
| 58 | |
| 59 | public synchronized Card connect(String protocol) throws CardException { |
| 60 | SecurityManager sm = System.getSecurityManager(); |
| 61 | if (sm != null) { |
| 62 | sm.checkPermission(new CardPermission(name, "connect")); |
| 63 | } |
| 64 | if (card != null) { |
| 65 | if (card.isValid()) { |
| 66 | String cardProto = card.getProtocol(); |
| 67 | if (protocol.equals("*") || protocol.equalsIgnoreCase(cardProto)) { |
| 68 | return card; |
| 69 | } else { |
| 70 | throw new CardException("Cannot connect using " + protocol |
| 71 | + ", connection already established using " + cardProto); |
| 72 | } |
| 73 | } else { |
| 74 | card = null; |
| 75 | } |
| 76 | } |
| 77 | try { |
| 78 | card = new CardImpl(this, protocol); |
| 79 | return card; |
| 80 | } catch (PCSCException e) { |
| 81 | if (e.code == SCARD_W_REMOVED_CARD) { |
| 82 | throw new CardNotPresentException("No card present", e); |
| 83 | } else { |
| 84 | throw new CardException("connect() failed", e); |
| 85 | } |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | public boolean isCardPresent() throws CardException { |
| 90 | try { |
| 91 | int[] status = SCardGetStatusChange(contextId, 0, |
| 92 | new int[] {SCARD_STATE_UNAWARE}, new String[] {name}); |
| 93 | return (status[0] & SCARD_STATE_PRESENT) != 0; |
| 94 | } catch (PCSCException e) { |
| 95 | throw new CardException("isCardPresent() failed", e); |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | private boolean waitForCard(boolean wantPresent, long timeout) throws CardException { |
| 100 | if (timeout < 0) { |
| 101 | throw new IllegalArgumentException("timeout must not be negative"); |
| 102 | } |
| 103 | if (timeout == 0) { |
| 104 | timeout = TIMEOUT_INFINITE; |
| 105 | } |
| 106 | int[] status = new int[] {SCARD_STATE_UNAWARE}; |
| 107 | String[] readers = new String[] {name}; |
| 108 | try { |
| 109 | // check if card status already matches |
| 110 | status = SCardGetStatusChange(contextId, 0, status, readers); |
| 111 | boolean present = (status[0] & SCARD_STATE_PRESENT) != 0; |
| 112 | if (wantPresent == present) { |
| 113 | return true; |
| 114 | } |
| 115 | // no match, wait |
| 116 | status = SCardGetStatusChange(contextId, timeout, status, readers); |
| 117 | present = (status[0] & SCARD_STATE_PRESENT) != 0; |
| 118 | // should never happen |
| 119 | if (wantPresent != present) { |
| 120 | throw new CardException("wait mismatch"); |
| 121 | } |
| 122 | return true; |
| 123 | } catch (PCSCException e) { |
| 124 | if (e.code == SCARD_E_TIMEOUT) { |
| 125 | return false; |
| 126 | } else { |
| 127 | throw new CardException("waitForCard() failed", e); |
| 128 | } |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | public boolean waitForCardPresent(long timeout) throws CardException { |
| 133 | return waitForCard(true, timeout); |
| 134 | } |
| 135 | |
| 136 | public boolean waitForCardAbsent(long timeout) throws CardException { |
| 137 | return waitForCard(false, timeout); |
| 138 | } |
| 139 | |
| 140 | public String toString() { |
| 141 | return "PC/SC terminal " + name; |
| 142 | } |
| 143 | } |