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
21 #include <com/sun/star/lang/IllegalArgumentException.hpp>
22 #include <com/sun/star/io/WrongFormatException.hpp>
23
24 #include <osl/time.h>
25 #include <osl/security.hxx>
26 #include <osl/socket.hxx>
27 #include <osl/file.hxx>
28 #include <o3tl/enumrange.hxx>
29 #include <o3tl/sprintf.hxx>
30
31 #include <rtl/ustring.hxx>
32 #include <rtl/strbuf.hxx>
33 #include <rtl/ustrbuf.hxx>
34
35 #include <tools/urlobj.hxx>
36 #include <unotools/bootstrap.hxx>
37
38 #include <unotools/useroptions.hxx>
39
40 #include <salhelper/linkhelper.hxx>
41
42 #include <svl/lockfilecommon.hxx>
43 #include <utility>
44
45 using namespace ::com::sun::star;
46
47 namespace svt {
48
49
LockFileCommon(OUString aLockFileURL)50 LockFileCommon::LockFileCommon(OUString aLockFileURL)
51 : m_aURL(std::move(aLockFileURL))
52 {
53 }
54
~LockFileCommon()55 LockFileCommon::~LockFileCommon()
56 {
57 }
58
59
GetURL() const60 const OUString& LockFileCommon::GetURL() const
61 {
62 return m_aURL;
63 }
64
65
SetURL(const OUString & aURL)66 void LockFileCommon::SetURL(const OUString& aURL)
67 {
68 m_aURL = aURL;
69 }
70
71
GenerateOwnLockFileURL(std::u16string_view aOrigURL,std::u16string_view aPrefix)72 OUString LockFileCommon::GenerateOwnLockFileURL(
73 std::u16string_view aOrigURL, std::u16string_view aPrefix)
74 {
75 INetURLObject aURL = ResolveLinks(INetURLObject(aOrigURL));
76 aURL.setName(Concat2View(aPrefix + aURL.GetLastName() + "%23" /*'#'*/));
77 return aURL.GetMainURL(INetURLObject::DecodeMechanism::NONE);
78 }
79
80
ResolveLinks(const INetURLObject & aDocURL)81 INetURLObject LockFileCommon::ResolveLinks( const INetURLObject& aDocURL )
82 {
83 if ( aDocURL.HasError() )
84 throw lang::IllegalArgumentException();
85
86 OUString aURLToCheck = aDocURL.GetMainURL(INetURLObject::DecodeMechanism::NONE);
87
88 // there is currently no UCB functionality to resolve the symbolic links;
89 // since the lock files are used only for local file systems the osl
90 // functionality is used directly
91 salhelper::LinkResolver aResolver(osl_FileStatus_Mask_FileName);
92 osl::FileBase::RC eStatus = aResolver.fetchFileStatus(aURLToCheck);
93 if (eStatus == osl::FileBase::E_None)
94 aURLToCheck = aResolver.m_aStatus.getFileURL();
95 else if (eStatus == osl::FileBase::E_MULTIHOP)
96 {
97 // do not allow too deep links
98 throw io::IOException();
99 }
100
101 return INetURLObject( aURLToCheck );
102 }
103
104
ParseList(const uno::Sequence<sal_Int8> & aBuffer,std::vector<LockFileEntry> & aResult)105 void LockFileCommon::ParseList( const uno::Sequence< sal_Int8 >& aBuffer, std::vector< LockFileEntry > & aResult )
106 {
107 sal_Int32 nCurPos = 0;
108 while ( nCurPos < aBuffer.getLength() )
109 {
110 aResult.push_back( ParseEntry( aBuffer, nCurPos ) );
111 }
112 }
113
114
ParseEntry(const uno::Sequence<sal_Int8> & aBuffer,sal_Int32 & io_nCurPos)115 LockFileEntry LockFileCommon::ParseEntry( const uno::Sequence< sal_Int8 >& aBuffer, sal_Int32& io_nCurPos )
116 {
117 LockFileEntry aResult;
118
119 for ( LockFileComponent nInd : o3tl::enumrange<LockFileComponent>() )
120 {
121 aResult[nInd] = ParseName( aBuffer, io_nCurPos );
122 if ( io_nCurPos >= aBuffer.getLength()
123 || ( nInd < LockFileComponent::LAST && aBuffer[io_nCurPos++] != ',' )
124 || ( nInd == LockFileComponent::LAST && aBuffer[io_nCurPos++] != ';' ) )
125 throw io::WrongFormatException();
126 }
127
128 return aResult;
129 }
130
131
ParseName(const uno::Sequence<sal_Int8> & aBuffer,sal_Int32 & io_nCurPos)132 OUString LockFileCommon::ParseName( const uno::Sequence< sal_Int8 >& aBuffer, sal_Int32& io_nCurPos )
133 {
134 OStringBuffer aResult(128);
135 bool bHaveName = false;
136 bool bEscape = false;
137
138 while( !bHaveName )
139 {
140 if ( io_nCurPos >= aBuffer.getLength() )
141 throw io::WrongFormatException();
142
143 if ( bEscape )
144 {
145 if ( aBuffer[io_nCurPos] != ',' && aBuffer[io_nCurPos] != ';' && aBuffer[io_nCurPos] != '\\' )
146 throw io::WrongFormatException();
147
148 aResult.append( static_cast<char>(aBuffer[io_nCurPos]) );
149
150 bEscape = false;
151 io_nCurPos++;
152 }
153 else if ( aBuffer[io_nCurPos] == ',' || aBuffer[io_nCurPos] == ';' )
154 bHaveName = true;
155 else
156 {
157 if ( aBuffer[io_nCurPos] == '\\' )
158 bEscape = true;
159 else
160 aResult.append( static_cast<char>(aBuffer[io_nCurPos]) );
161
162 io_nCurPos++;
163 }
164 }
165
166 return OStringToOUString( aResult, RTL_TEXTENCODING_UTF8 );
167 }
168
169
EscapeCharacters(const OUString & aSource)170 OUString LockFileCommon::EscapeCharacters( const OUString& aSource )
171 {
172 OUStringBuffer aBuffer(aSource.getLength()*2);
173 const sal_Unicode* pStr = aSource.getStr();
174 for ( sal_Int32 nInd = 0; nInd < aSource.getLength() && pStr[nInd] != 0; nInd++ )
175 {
176 if ( pStr[nInd] == '\\' || pStr[nInd] == ';' || pStr[nInd] == ',' )
177 aBuffer.append( '\\' );
178 aBuffer.append( pStr[nInd] );
179 }
180
181 return aBuffer.makeStringAndClear();
182 }
183
184
GetOOOUserName()185 OUString LockFileCommon::GetOOOUserName()
186 {
187 SvtUserOptions aUserOpt;
188 OUString aName = aUserOpt.GetFirstName();
189 if ( !aName.isEmpty() )
190 aName += " ";
191 aName += aUserOpt.GetLastName();
192
193 return aName;
194 }
195
196
GetCurrentLocalTime()197 OUString LockFileCommon::GetCurrentLocalTime()
198 {
199 OUString aTime;
200
201 TimeValue aSysTime;
202 if ( osl_getSystemTime( &aSysTime ) )
203 {
204 TimeValue aLocTime;
205 if ( osl_getLocalTimeFromSystemTime( &aSysTime, &aLocTime ) )
206 {
207 oslDateTime aDateTime;
208 if ( osl_getDateTimeFromTimeValue( &aLocTime, &aDateTime ) )
209 {
210 char pDateTime[sizeof("65535.65535.-32768 65535:65535")];
211 // reserve enough space for hypothetical max length
212 o3tl::sprintf( pDateTime, "%02" SAL_PRIuUINT32 ".%02" SAL_PRIuUINT32 ".%4" SAL_PRIdINT32 " %02" SAL_PRIuUINT32 ":%02" SAL_PRIuUINT32, sal_uInt32(aDateTime.Day), sal_uInt32(aDateTime.Month), sal_Int32(aDateTime.Year), sal_uInt32(aDateTime.Hours), sal_uInt32(aDateTime.Minutes) );
213 aTime = OUString::createFromAscii( pDateTime );
214 }
215 }
216 }
217
218 return aTime;
219 }
220
221
GenerateOwnEntry()222 LockFileEntry LockFileCommon::GenerateOwnEntry()
223 {
224 LockFileEntry aResult;
225
226 aResult[LockFileComponent::OOOUSERNAME] = GetOOOUserName();
227
228 ::osl::Security aSecurity;
229 aSecurity.getUserName( aResult[LockFileComponent::SYSUSERNAME] );
230
231 aResult[LockFileComponent::LOCALHOST] = ::osl::SocketAddr::getLocalHostname();
232
233 aResult[LockFileComponent::EDITTIME] = GetCurrentLocalTime();
234
235 ::utl::Bootstrap::locateUserInstallation( aResult[LockFileComponent::USERURL] );
236
237
238 return aResult;
239 }
240
241 } // namespace svt
242
243 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
244
