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18  */
19 
20 #include <sal/config.h>
21 
22 #include <string_view>
23 
24 #include <tools/urlobj.hxx>
25 #include <ucbhelper/content.hxx>
26 #include <tools/debug.hxx>
27 #include <comphelper/processfactory.hxx>
28 #include <com/sun/star/uno/Sequence.hxx>
29 #include <com/sun/star/uno/Reference.h>
30 #include <com/sun/star/util/thePathSettings.hpp>
31 #include <o3tl/typed_flags_set.hxx>
32 
33 #include <linguistic/misc.hxx>
34 
35 using namespace com::sun::star;
36 
37 namespace {
38 
39 /// Flags to be used with the multi-path related functions
40 /// @see GetDictionaryPaths
41 enum class DictionaryPathFlags
42 {
43     NONE      = 0x00,
44     INTERNAL  = 0x01,
45     USER      = 0x02,
46 };
47 
48 }
49 
50 namespace o3tl
51 {
52     template<> struct typed_flags<DictionaryPathFlags> : is_typed_flags<DictionaryPathFlags, 0x03> {};
53 }
54 #define PATH_FLAG_ALL       (DictionaryPathFlags::INTERNAL | DictionaryPathFlags::USER)
55 
56 namespace linguistic
57 {
58 
59 
FileExists(const OUString & rMainURL)60 bool FileExists( const OUString &rMainURL )
61 {
62     bool bExists = false;
63     if (!rMainURL.isEmpty())
64     {
65         try
66         {
67             ::ucbhelper::Content aContent( rMainURL,
68                     uno::Reference< css::ucb::XCommandEnvironment >(),
69                     comphelper::getProcessComponentContext());
70             bExists = aContent.isDocument();
71         }
72         catch (uno::Exception &)
73         {
74         }
75     }
76     return bExists;
77 }
78 
GetMultiPaths_Impl(std::u16string_view rPathPrefix,DictionaryPathFlags nPathFlags)79 static std::vector< OUString > GetMultiPaths_Impl(
80     std::u16string_view rPathPrefix,
81     DictionaryPathFlags nPathFlags )
82 {
83     std::vector< OUString >     aRes;
84     uno::Sequence< OUString >   aInternalPaths;
85     uno::Sequence< OUString >   aUserPaths;
86     OUString                    aWritablePath;
87 
88     bool bSuccess = true;
89     uno::Reference< uno::XComponentContext >  xContext( comphelper::getProcessComponentContext() );
90     try
91     {
92         OUString aInternal( OUString::Concat(rPathPrefix) + "_internal" );
93         OUString aUser( OUString::Concat(rPathPrefix) + "_user" );
94         OUString aWriteable( OUString::Concat(rPathPrefix) + "_writable" );
95 
96         uno::Reference< util::XPathSettings > xPathSettings =
97             util::thePathSettings::get( xContext );
98         xPathSettings->getPropertyValue( aInternal )  >>= aInternalPaths;
99         xPathSettings->getPropertyValue( aUser )      >>= aUserPaths;
100         xPathSettings->getPropertyValue( aWriteable ) >>= aWritablePath;
101     }
102     catch (uno::Exception &)
103     {
104         bSuccess = false;
105     }
106     if (bSuccess)
107     {
108         // build resulting sequence by adding the paths in the following order:
109         // 1. writable path
110         // 2. all user paths
111         // 3. all internal paths
112         sal_Int32 nMaxEntries = aInternalPaths.getLength() + aUserPaths.getLength();
113         if (!aWritablePath.isEmpty())
114             ++nMaxEntries;
115         aRes.reserve( nMaxEntries );
116         if (!aWritablePath.isEmpty())
117             aRes.push_back(aWritablePath);
118 
119         auto lPathIsNotEmpty = [](const OUString& rPath) { return !rPath.isEmpty(); };
120 
121         if (nPathFlags & DictionaryPathFlags::USER)
122             std::copy_if(std::cbegin(aUserPaths), std::cend(aUserPaths), std::back_inserter(aRes), lPathIsNotEmpty);
123 
124         if (nPathFlags & DictionaryPathFlags::INTERNAL)
125             std::copy_if(std::cbegin(aInternalPaths), std::cend(aInternalPaths), std::back_inserter(aRes), lPathIsNotEmpty);
126     }
127 
128     return aRes;
129 }
130 
GetDictionaryWriteablePath()131 OUString GetDictionaryWriteablePath()
132 {
133     std::vector< OUString > aPaths(
134         GetMultiPaths_Impl( u"Dictionary", DictionaryPathFlags::NONE ) );
135     DBG_ASSERT( aPaths.size() == 1, "Dictionary_writable path corrupted?" );
136     OUString aRes;
137     if (!aPaths.empty())
138         aRes = aPaths[0];
139     return aRes;
140 }
141 
GetDictionaryPaths()142 std::vector< OUString > GetDictionaryPaths()
143 {
144     return GetMultiPaths_Impl( u"Dictionary", PATH_FLAG_ALL );
145 }
146 
GetWritableDictionaryURL(std::u16string_view rDicName)147 OUString  GetWritableDictionaryURL( std::u16string_view rDicName )
148 {
149     // new user writable dictionaries should be created in the 'writable' path
150     OUString aDirName( GetDictionaryWriteablePath() );
151 
152     // build URL to use for a new (persistent) dictionary
153     INetURLObject aURLObj;
154     aURLObj.SetSmartProtocol( INetProtocol::File );
155     aURLObj.SetSmartURL( aDirName );
156     DBG_ASSERT(!aURLObj.HasError(), "lng : invalid URL");
157     aURLObj.Append( rDicName, INetURLObject::EncodeMechanism::All );
158     DBG_ASSERT(!aURLObj.HasError(), "lng : invalid URL");
159 
160     // DecodeMechanism::NONE preserves the escape sequences that might be included in aDirName
161     // depending on the characters used in the path string. (Needed when comparing
162     // the dictionary URL with GetDictionaryWriteablePath in DicList::createDictionary.)
163     return aURLObj.GetMainURL( INetURLObject::DecodeMechanism::NONE );
164 }
165 
166 }   // namespace linguistic
167 
168 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
169