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
|
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QByteArray>
#include <QtGlobal>
#include "qbuiltintypes_p.h"
#include "qvalidationerror_p.h"
#include "qbase64binary_p.h"
QT_BEGIN_NAMESPACE
using namespace QPatternist;
Base64Binary::Base64Binary(const QByteArray &val) : m_value(val)
{
}
const char Base64Binary::Base64DecMap[128] =
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x3E, 0x00, 0x00, 0x00, 0x3F,
0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E,
0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16,
0x17, 0x18, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20,
0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30,
0x31, 0x32, 0x33, 0x00, 0x00, 0x00, 0x00, 0x00
};
void Base64Binary::base64Decode(const QByteArray &in, QByteArray &out, bool &ok)
{
out.resize(0);
if(in.isEmpty())
{
ok = false;
return;
}
ok = true;
int len = in.size(), tail = len;
const char *const data = in.data();
unsigned int eqCount = 0;
// Find the tail end of the actual encoded data even if
// there is/are trailing CR and/or LF.
while(data[tail - 1] == '=')
{
--tail;
if(data[tail] != '=')
len = tail;
else
++eqCount;
}
if(eqCount > 2)
{
ok = false;
return;
}
unsigned int outIdx = 0;
const int count = len; // We modify len below
out.resize((count));
for(int idx = 0; idx < count; ++idx)
{
const unsigned char ch = data[idx];
if((ch > 47 && ch < 58) ||
(ch > 64 && ch < 91) ||
(ch > 96 && ch < 123) ||
ch == '+' ||
ch == '/')
{
out[outIdx++] = Base64DecMap[ch];
}
else if(ch == '=')
{
if((idx + 1) == count || data[idx + 1] == '=')
{
out[++outIdx] = Base64DecMap[ch];
continue;
}
ok = false;
return;
}
else if(ch == ' ')
{
/* One space is ok, and the previously applied whitespace facet(not implemented
* at this time of writing) have ensured it's only one space, so we assume that. */
--tail;
--len;
continue;
}
else
{
ok = false;
return;
}
}
if(outIdx % 4 != 0)
{
ok = false;
return;
}
out.resize(len);
// 4-byte to 3-byte conversion
len = (tail > (len / 4)) ? tail - (len / 4) : 0;
int sidx = 0, didx = 0;
if(len > 1)
{
while(didx < len - 2)
{
out[didx] =(((out[sidx] << 2) & 255) | ((out[sidx + 1] >> 4) & 003));
out[didx + 1] =(((out[sidx + 1] << 4) & 255) | ((out[sidx + 2] >> 2) & 017));
out[didx + 2] =(((out[sidx + 2] << 6) & 255) | (out[sidx + 3] & 077));
sidx += 4;
didx += 3;
}
}
if(didx < len)
out[didx] =(((out[sidx] << 2) & 255) | ((out[sidx + 1] >> 4) & 003));
if(++didx < len)
out[didx] =(((out[sidx + 1] << 4) & 255) | ((out[sidx + 2] >> 2) & 017));
// Resize the output buffer
if(len == 0 || len < out.size())
out.resize(len);
}
AtomicValue::Ptr Base64Binary::fromLexical(const QString &str)
{
const QString simple(str.simplified());
if(simple.isEmpty())
return AtomicValue::Ptr(new Base64Binary(QByteArray()));
bool ok = false;
QByteArray result;
base64Decode(simple.toUtf8(), result, ok);
if(ok)
return AtomicValue::Ptr(new Base64Binary(result));
else
return ValidationError::createError();
}
Base64Binary::Ptr Base64Binary::fromValue(const QByteArray &data)
{
return Base64Binary::Ptr(new Base64Binary(data));
}
QString Base64Binary::stringValue() const
{
return QString::fromLatin1(m_value.toBase64().constData());
}
ItemType::Ptr Base64Binary::type() const
{
return BuiltinTypes::xsBase64Binary;
}
QT_END_NAMESPACE
|
