/* -*- 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 <comphelper/diagnose_ex.hxx>
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::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<XComponentConte
xt >& _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(u"cannot get result for getJavaVM"_ustr, 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(std::u16string_view _rQuote, const OUString& _rName)
{
OUString sName = _rName;
if( !_rQuote.empty() && _rQuote[0] != ' ')
sName = _rQuote + _rName + _rQuote;
return sName;
}
}
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