Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 235 insertions, 0 deletions

diff --git a/connectivity/source/commontools/CommonTools.cxx b/connectivity/source/commontools/CommonTools.cxx
new file mode 100644
index 000000000..739fe6e66
--- /dev/null
+++ b/connectivity/source/commontools/CommonTools.cxx
@@ -0,0 +1,235 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <config_java.h>
+
+#include <connectivity/CommonTools.hxx>
+#include <connectivity/dbtools.hxx>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/java/JavaVirtualMachine.hpp>
+#if HAVE_FEATURE_JAVA
+#include <jvmaccess/virtualmachine.hxx>
+#endif
+#include <osl/diagnose.h>
+#include <rtl/character.hxx>
+#include <rtl/process.h>
+#include <tools/diagnose_ex.h>
+
+using namespace ::comphelper;
+static sal_Unicode rtl_ascii_toUpperCase( sal_Unicode ch )
+{
+    return ch >= 0x0061 && ch <= 0x007a ? ch + 0x20 : ch;
+}
+
+namespace connectivity
+{
+    using namespace ::com::sun::star::uno;
+    using namespace ::com::sun::star::lang;
+    using namespace ::com::sun::star::beans;
+    using namespace ::com::sun::star::java;
+    using namespace dbtools;
+
+    const sal_Unicode CHAR_PLACE = '_';
+    const sal_Unicode CHAR_WILD  = '%';
+
+    bool match(const sal_Unicode* pWild, const sal_Unicode* pStr, const sal_Unicode cEscape)
+    {
+        int    pos=0;
+        int    flag=0;
+
+        while ( *pWild || flag )
+        {
+            switch (*pWild)
+            {
+                case CHAR_PLACE:
+                    if ( *pStr == 0 )
+                        return false;
+                    break;
+                default:
+                    if (*pWild && (*pWild == cEscape) && ((*(pWild+1)== CHAR_PLACE) || (*(pWild+1) == CHAR_WILD)) )
+                        pWild++;
+                    if ( rtl_ascii_toUpperCase(*pWild) != rtl_ascii_toUpperCase(*pStr) )
+                        if ( !pos )
+                            return false;
+                        else
+                            pWild += pos;
+                    else
+                        break;
+                    // WARNING/TODO: in certain circumstances it will run into
+                    // the next 'case'!
+                    [[fallthrough]];
+                case CHAR_WILD:
+                    while ( *pWild == CHAR_WILD )
+                        pWild++;
+                    if ( *pWild == 0 )
+                        return true;
+                    flag = 1;
+                    pos  = 0;
+                    if ( *pStr == 0 )
+                        return ( *pWild == 0 );
+                    while ( *pStr && *pStr != *pWild )
+                    {
+                        if ( *pWild == CHAR_PLACE ) {
+                            pWild++;
+                            while ( *pWild == CHAR_WILD )
+                                pWild++;
+                        }
+                        pStr++;
+                        if ( *pStr == 0 )
+                            return ( *pWild == 0 );
+                    }
+                    break;
+            }
+            if ( *pWild != 0 )
+                pWild++;
+            if ( *pStr != 0 )
+                pStr++;
+            else
+                flag = 0;
+            if ( flag )
+                pos--;
+        }
+        return ( *pStr == 0 ) && ( *pWild == 0 );
+    }
+
+#if HAVE_FEATURE_JAVA
+    ::rtl::Reference< jvmaccess::VirtualMachine > getJavaVM(const Reference<XComponentContext >& _rxContext)
+    {
+        ::rtl::Reference< jvmaccess::VirtualMachine > aRet;
+        OSL_ENSURE(_rxContext.is(),"No XMultiServiceFactory a.v.!");
+        if(!_rxContext.is())
+            return aRet;
+
+        try
+        {
+            Reference< XJavaVM > xVM = JavaVirtualMachine::create(_rxContext);
+
+            Sequence<sal_Int8> processID(17); // 16 + 1
+            auto pprocessID = processID.getArray();
+            rtl_getGlobalProcessId( reinterpret_cast<sal_uInt8*>(pprocessID) );
+            pprocessID[16] = 0; // RETURN_VIRTUALMACHINE
+
+            Any uaJVM = xVM->getJavaVM( processID );
+            sal_Int64 nTemp;
+            if (!(uaJVM >>= nTemp)) {
+                throw Exception("cannot get result for getJavaVM", nullptr); // -5
+            }
+            aRet = reinterpret_cast<jvmaccess::VirtualMachine *>(
+                static_cast<sal_IntPtr>(nTemp));
+        }
+        catch (Exception&)
+        {
+            TOOLS_WARN_EXCEPTION("connectivity.commontools", "getJavaVM failed:");
+        }
+
+        return aRet;
+    }
+
+    bool existsJavaClassByName( const ::rtl::Reference< jvmaccess::VirtualMachine >& _pJVM,std::u16string_view _sClassName )
+    {
+        bool bRet = false;
+        if ( _pJVM.is() )
+        {
+            jvmaccess::VirtualMachine::AttachGuard aGuard(_pJVM);
+            JNIEnv* pEnv = aGuard.getEnvironment();
+            if( pEnv )
+            {
+                OString sClassName = OUStringToOString(_sClassName, RTL_TEXTENCODING_ASCII_US);
+                sClassName = sClassName.replace('.','/');
+                jobject out = pEnv->FindClass(sClassName.getStr());
+                bRet = out != nullptr;
+                pEnv->DeleteLocalRef( out );
+            }
+        }
+        return bRet;
+    }
+#endif
+}
+
+namespace dbtools
+{
+
+static bool isCharOk(sal_Unicode c, std::u16string_view _rSpecials)
+{
+
+    return ( ((c >= 97) && (c <= 122)) || ((c >= 65) && (c <=  90)) || ((c >= 48) && (c <=  57)) ||
+          c == '_' || _rSpecials.find(c) != std::u16string_view::npos);
+}
+
+
+bool isValidSQLName(const OUString& rName, std::u16string_view _rSpecials)
+{
+    // Test for correct naming (in SQL sense)
+    // This is important for table names for example
+    const sal_Unicode* pStr = rName.getStr();
+    if (*pStr > 127 || rtl::isAsciiDigit(*pStr))
+        return false;
+
+    for (; *pStr; ++pStr )
+        if(!isCharOk(*pStr,_rSpecials))
+            return false;
+
+    if  (   !rName.isEmpty()
+        &&  (   (rName.toChar() == '_')
+            ||  (   (rName.toChar() >= '0')
+                &&  (rName.toChar() <= '9')
+                )
+            )
+        )
+        return false;
+    // the SQL-Standard requires the first character to be an alphabetic character, which
+    // isn't easy to decide in UniCode...
+    // So we just prohibit the characters which already lead to problems...
+    // 11.04.00 - 74902 - FS
+
+    return true;
+}
+
+// Creates a new name if necessary
+OUString convertName2SQLName(const OUString& rName, std::u16string_view _rSpecials)
+{
+    if(isValidSQLName(rName,_rSpecials))
+        return rName;
+
+    const sal_Unicode* pStr = rName.getStr();
+    // if not valid
+    if (*pStr >= 128 || rtl::isAsciiDigit(*pStr))
+        return OUString();
+
+    OUStringBuffer aNewName(rName);
+    sal_Int32 nLength = rName.getLength();
+    for (sal_Int32 i=0; i < nLength; ++i)
+        if(!isCharOk(aNewName[i],_rSpecials))
+            aNewName[i] = '_';
+
+    return aNewName.makeStringAndClear();
+}
+
+OUString quoteName(const OUString& _rQuote, const OUString& _rName)
+{
+    OUString sName = _rName;
+    if( !_rQuote.isEmpty() && _rQuote.toChar() != ' ')
+        sName = _rQuote + _rName + _rQuote;
+    return sName;
+}
+
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */