summaryrefslogtreecommitdiff
path: root/connectivity/source/commontools/CommonTools.cxx
blob: 371b2a63c0d26cca6497fbf7a3c19ee0e3fac943 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
/* -*- 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_features.h>

#include <connectivity/CommonTools.hxx>
#include <connectivity/dbtools.hxx>
#include <com/sun/star/util/Date.hpp>
#include <com/sun/star/util/Time.hpp>
#include <com/sun/star/util/DateTime.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/lang/XComponent.hpp>
#include <cppuhelper/interfacecontainer.h>
#include <TConnection.hxx>
#include <comphelper/types.hxx>
#include <com/sun/star/java/JavaVirtualMachine.hpp>
#if HAVE_FEATURE_JAVA
#include <jvmaccess/virtualmachine.hxx>
#endif
#include <rtl/character.hxx>
#include <rtl/process.h>

using namespace ::comphelper;
inline 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'!
                    SAL_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(16);
            rtl_getGlobalProcessId( reinterpret_cast<sal_uInt8*>(processID.getArray()) );
            processID.realloc(17);
            processID[16] = 0;

            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&)
        {
        }

        return aRet;
    }

    bool existsJavaClassByName( const ::rtl::Reference< jvmaccess::VirtualMachine >& _pJVM,const OUString& _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
{

bool isCharOk(sal_Unicode c,const OUString& _rSpecials)
{

    return ( ((c >= 97) && (c <= 122)) || ((c >= 65) && (c <=  90)) || ((c >= 48) && (c <=  57)) ||
          c == '_' || _rSpecials.indexOf(c) != -1);
}


bool isValidSQLName(const OUString& rName,const OUString& _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,const OUString& _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: */