01: /*
02: * Copyright (c) 2007, intarsys consulting GmbH
03: *
04: * Redistribution and use in source and binary forms, with or without
05: * modification, are permitted provided that the following conditions are met:
06: *
07: * - Redistributions of source code must retain the above copyright notice,
08: * this list of conditions and the following disclaimer.
09: *
10: * - Redistributions in binary form must reproduce the above copyright notice,
11: * this list of conditions and the following disclaimer in the documentation
12: * and/or other materials provided with the distribution.
13: *
14: * - Neither the name of intarsys nor the names of its contributors may be used
15: * to endorse or promote products derived from this software without specific
16: * prior written permission.
17: *
18: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21: * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28: * POSSIBILITY OF SUCH DAMAGE.
29: */
30: package de.intarsys.pdf.crypt;
31:
32: import de.intarsys.pdf.st.STDocument;
33: import de.intarsys.tools.authenticate.IPasswordProvider;
34:
35: /**
36: * An abstract superclass for implementing the PDF standard security process.
37: *
38: */
39: abstract public class SystemSecurityHandler implements
40: ISystemSecurityHandler {
41:
42: static public ISystemSecurityHandler create(
43: COSEncryption pEncryption) {
44: int version = pEncryption.getVersion();
45: if (version == 0) {
46: return new SystemSecurityHandlerV0(pEncryption);
47: } else if (version == 1) {
48: return new SystemSecurityHandlerV1(pEncryption);
49: } else if (version == 2) {
50: return new SystemSecurityHandlerV2(pEncryption);
51: } else if (version == 3) {
52: return new SystemSecurityHandlerV3(pEncryption);
53: } else if (version == 4) {
54: return new SystemSecurityHandlerV4(pEncryption);
55: } else {
56: return new SystemSecurityHandlerV4(pEncryption);
57: }
58: }
59:
60: private COSEncryption encryption;
61:
62: private ISecurityHandler securityHandler;
63:
64: protected SystemSecurityHandler(COSEncryption encryption) {
65: this .encryption = encryption;
66: }
67:
68: public COSEncryption getEncryption() {
69: return encryption;
70: }
71:
72: public ISecurityHandler getSecurityHandler() {
73: return securityHandler;
74: }
75:
76: public void init(STDocument document, COSEncryption encryption)
77: throws COSSecurityException {
78: securityHandler = SecurityHandlerFactory.get()
79: .getSecurityHandler(encryption);
80: securityHandler.init(document, encryption);
81: }
82:
83: public void authenticate(IPasswordProvider passwordProvider)
84: throws COSSecurityException {
85: securityHandler.authenticate(passwordProvider);
86: }
87: }
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