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 #include <sal/config.h>
21 
22 #include <comphelper/hash.hxx>
23 #include <com/sun/star/lang/DisposedException.hpp>
24 #include <rtl/digest.h>
25 #include <rtl/ref.hxx>
26 
27 #include "sha1context.hxx"
28 
29 using namespace ::com::sun::star;
30 
31 // static
Create()32 uno::Reference<xml::crypto::XDigestContext> StarOfficeSHA1DigestContext::Create()
33 {
34     ::rtl::Reference<StarOfficeSHA1DigestContext> xResult = new StarOfficeSHA1DigestContext();
35     xResult->m_pDigest = rtl_digest_createSHA1();
36     if ( !xResult->m_pDigest )
37         throw uno::RuntimeException("Can not create cipher!" );
38 
39     return uno::Reference< xml::crypto::XDigestContext >( xResult.get() );
40 }
41 
~StarOfficeSHA1DigestContext()42 StarOfficeSHA1DigestContext::~StarOfficeSHA1DigestContext()
43 {
44     if ( m_pDigest )
45     {
46         rtl_digest_destroySHA1( m_pDigest );
47         m_pDigest = nullptr;
48     }
49 }
50 
updateDigest(const uno::Sequence<::sal_Int8> & aData)51 void SAL_CALL StarOfficeSHA1DigestContext::updateDigest(const uno::Sequence<::sal_Int8>& aData)
52 {
53     ::osl::MutexGuard aGuard( m_aMutex );
54     if ( !m_pDigest )
55         throw lang::DisposedException();
56 
57     if ( rtl_Digest_E_None != rtl_digest_updateSHA1( m_pDigest, aData.getConstArray(), aData.getLength() ) )
58     {
59         rtl_digest_destroySHA1( m_pDigest );
60         m_pDigest = nullptr;
61 
62         throw uno::RuntimeException();
63     }
64 }
65 
finalizeDigestAndDispose()66 uno::Sequence<::sal_Int8> SAL_CALL StarOfficeSHA1DigestContext::finalizeDigestAndDispose()
67 {
68     ::osl::MutexGuard aGuard( m_aMutex );
69     if ( !m_pDigest )
70         throw lang::DisposedException();
71 
72     uno::Sequence< sal_Int8 > aResult( RTL_DIGEST_LENGTH_SHA1 );
73     if ( rtl_Digest_E_None != rtl_digest_getSHA1( m_pDigest, reinterpret_cast< sal_uInt8* >( aResult.getArray() ), aResult.getLength() ) )
74     {
75         rtl_digest_destroySHA1( m_pDigest );
76         m_pDigest = nullptr;
77 
78         throw uno::RuntimeException();
79     }
80 
81     rtl_digest_destroySHA1( m_pDigest );
82     m_pDigest = nullptr;
83 
84     return aResult;
85 }
86 
Create()87 uno::Reference<xml::crypto::XDigestContext> CorrectSHA1DigestContext::Create()
88 {
89     return new CorrectSHA1DigestContext();
90 }
91 
92 struct CorrectSHA1DigestContext::Impl
93 {
94     ::osl::Mutex m_Mutex;
95     ::comphelper::Hash m_Hash{::comphelper::HashType::SHA1};
96     bool m_bDisposed{false};
97 };
98 
CorrectSHA1DigestContext()99 CorrectSHA1DigestContext::CorrectSHA1DigestContext()
100     : m_pImpl(new Impl)
101 {
102 }
103 
~CorrectSHA1DigestContext()104 CorrectSHA1DigestContext::~CorrectSHA1DigestContext()
105 {
106 }
107 
updateDigest(const uno::Sequence<::sal_Int8> & rData)108 void SAL_CALL CorrectSHA1DigestContext::updateDigest(const uno::Sequence<::sal_Int8>& rData)
109 {
110     ::osl::MutexGuard aGuard(m_pImpl->m_Mutex);
111     if (m_pImpl->m_bDisposed)
112         throw lang::DisposedException();
113 
114     m_pImpl->m_Hash.update(reinterpret_cast<unsigned char const*>(rData.getConstArray()), rData.getLength());
115 }
116 
finalizeDigestAndDispose()117 uno::Sequence<::sal_Int8> SAL_CALL CorrectSHA1DigestContext::finalizeDigestAndDispose()
118 {
119     ::osl::MutexGuard aGuard(m_pImpl->m_Mutex);
120     if (m_pImpl->m_bDisposed)
121         throw lang::DisposedException();
122 
123     m_pImpl->m_bDisposed = true;
124     std::vector<unsigned char> const sha1(m_pImpl->m_Hash.finalize());
125     return uno::Sequence<sal_Int8>(reinterpret_cast<sal_Int8 const*>(sha1.data()), sha1.size());
126 }
127 
128 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
129