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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #ifndef _SECURITYENGINE_HXX
21 : #define _SECURITYENGINE_HXX
22 :
23 : #include <com/sun/star/xml/crypto/sax/XReferenceResolvedListener.hpp>
24 : #include <com/sun/star/xml/crypto/sax/XReferenceResolvedBroadcaster.hpp>
25 : #include <com/sun/star/xml/crypto/sax/XKeyCollector.hpp>
26 : #include <com/sun/star/xml/crypto/sax/XMissionTaker.hpp>
27 : #include <com/sun/star/xml/crypto/sax/XSAXEventKeeper.hpp>
28 : #include <com/sun/star/xml/crypto/XXMLSignature.hpp>
29 :
30 : #include <cppuhelper/implbase3.hxx>
31 :
32 : class SecurityEngine : public cppu::WeakImplHelper3
33 : <
34 : com::sun::star::xml::crypto::sax::XReferenceResolvedListener,
35 : com::sun::star::xml::crypto::sax::XKeyCollector,
36 : com::sun::star::xml::crypto::sax::XMissionTaker
37 : >
38 : /****** securityengine.hxx/CLASS SecurityEngine *******************************
39 : *
40 : * NAME
41 : * SecurityEngine -- Base class of SignatureEngine and EncryptionEngine
42 : *
43 : * FUNCTION
44 : * Maintains common members and methods related with security engine
45 : * operation.
46 : *
47 : * AUTHOR
48 : * Michael Mi
49 : * Email: michael.mi@sun.com
50 : ******************************************************************************/
51 : {
52 : protected:
53 :
54 : /*
55 : * A SAXEventKeeper internally maintians all resources that a security
56 : * operation needs. The m_xSAXEventKeeper member is used to release
57 : * those resources when the security operation finishes.
58 : */
59 : com::sun::star::uno::Reference<
60 : com::sun::star::xml::crypto::sax::XSAXEventKeeper > m_xSAXEventKeeper;
61 :
62 : /*
63 : * the id of ElementCollector of the template element.
64 : * For a signature, the template element is the Signature element,
65 : * for a encryption, the EncryptedData/EncryptedKey element is.
66 : */
67 : sal_Int32 m_nIdOfTemplateEC;
68 :
69 : /*
70 : * remembers how many referenced elements have been bufferred completely,
71 : * including the key element, template element, and referenced element of
72 : * signature.
73 : */
74 : sal_Int32 m_nNumOfResolvedReferences;
75 :
76 : /*
77 : * the id of ElementCollector of the key element.
78 : * If a Signature element or EncryptedData/EncryptedKey element has
79 : * an internal key sub-element, then this member should be -1
80 : */
81 : sal_Int32 m_nIdOfKeyEC;
82 :
83 : /*
84 : * remembers whether the current opertion has finished.
85 : */
86 : bool m_bMissionDone;
87 :
88 : /*
89 : * the Id of the security entity, a signature or encryption, which is used for
90 : * the result listener to identify the entity.
91 : */
92 : sal_Int32 m_nSecurityId;
93 :
94 : /*
95 : * the status of the operation
96 : */
97 : com::sun::star::xml::crypto::SecurityOperationStatus m_nStatus;
98 :
99 : /*
100 : * the result listener, which will receives the security operation result.
101 : */
102 : com::sun::star::uno::Reference<
103 : com::sun::star::uno::XInterface >
104 : m_xResultListener;
105 :
106 : protected:
107 : explicit SecurityEngine();
108 0 : virtual ~SecurityEngine() {};
109 :
110 : /*
111 : * perform the security operation.
112 : * Any derived class will implement this method respectively.
113 : */
114 0 : virtual void tryToPerform( )
115 0 : throw (com::sun::star::uno::Exception, com::sun::star::uno::RuntimeException){};
116 :
117 : /*
118 : * clear up all resources used by this operation.
119 : * This method is called after the operation finishes, or a End-Your-Mission
120 : * message is received.
121 : * Any derived class will implement this method respectively.
122 : */
123 0 : virtual void clearUp( ) const {};
124 :
125 : /*
126 : * notifies any possible result listener.
127 : * When verify a signature or conduct a decryption, the operation result will
128 : * be transferred to a listener by this method.
129 : * Any derived class will implement this method respectively.
130 : */
131 0 : virtual void notifyResultListener() const
132 : throw (com::sun::star::uno::Exception, com::sun::star::uno::RuntimeException)
133 0 : {};
134 :
135 : /*
136 : * checks whether everything is ready.
137 : * Any derived class will implement this method respectively.
138 : */
139 0 : virtual bool checkReady() const { return true; };
140 :
141 : public:
142 : /* XReferenceResolvedListener */
143 : virtual void SAL_CALL referenceResolved( sal_Int32 referenceId )
144 : throw (com::sun::star::uno::Exception, com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
145 :
146 : /* XKeyCollector */
147 : virtual void SAL_CALL setKeyId( sal_Int32 id )
148 : throw (com::sun::star::uno::Exception, com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
149 :
150 : /* XMissionTaker */
151 : virtual sal_Bool SAL_CALL endMission( )
152 : throw (com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
153 : };
154 :
155 : #endif
156 :
157 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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