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
240
241
242
243
244
245
246
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include <config_lgpl.h>
#include <string.h>
#include <ne_xml.h>
#include "LockEntrySequence.hxx"
#include <memory>
using namespace webdav_ucp;
using namespace com::sun::star;
namespace {
struct LockEntrySequenceParseContext
{
std::unique_ptr<ucb::LockEntry> pEntry;
bool hasScope;
bool hasType;
LockEntrySequenceParseContext()
: hasScope( false ), hasType( false ) {}
};
}
#define STATE_TOP (1)
#define STATE_LOCKENTRY (STATE_TOP)
#define STATE_LOCKSCOPE (STATE_TOP + 1)
#define STATE_EXCLUSIVE (STATE_TOP + 2)
#define STATE_SHARED (STATE_TOP + 3)
#define STATE_LOCKTYPE (STATE_TOP + 4)
#define STATE_WRITE (STATE_TOP + 5)
extern "C" {
static int LockEntrySequence_startelement_callback(
void *,
int parent,
const char * /*nspace*/,
const char *name,
const char ** )
{
if ( name != nullptr )
{
switch ( parent )
{
case NE_XML_STATEROOT:
if ( strcmp( name, "lockentry" ) == 0 )
return STATE_LOCKENTRY;
break;
case STATE_LOCKENTRY:
if ( strcmp( name, "lockscope" ) == 0 )
return STATE_LOCKSCOPE;
else if ( strcmp( name, "locktype" ) == 0 )
return STATE_LOCKTYPE;
#define IIS_BUGS_WORKAROUND
#ifdef IIS_BUGS_WORKAROUND
/* IIS (6) returns XML violating RFC 4918
for DAV:supportedlock property value.
<lockentry>
<write></write>
<shared></shared>
</lockentry>
<lockentry>
<write></write>
<exclusive></exclusive>
</lockentry>
Bother...
*/
else if ( strcmp( name, "exclusive" ) == 0 )
return STATE_EXCLUSIVE;
else if ( strcmp( name, "shared" ) == 0 )
return STATE_SHARED;
else if ( strcmp( name, "write" ) == 0 )
return STATE_WRITE;
#endif
break;
case STATE_LOCKSCOPE:
if ( strcmp( name, "exclusive" ) == 0 )
return STATE_EXCLUSIVE;
else if ( strcmp( name, "shared" ) == 0 )
return STATE_SHARED;
break;
case STATE_LOCKTYPE:
if ( strcmp( name, "write" ) == 0 )
return STATE_WRITE;
break;
}
}
return NE_XML_DECLINE;
}
static int LockEntrySequence_chardata_callback(
void *,
int,
const char *,
size_t )
{
return 0; // zero to continue, non-zero to abort parsing
}
static int LockEntrySequence_endelement_callback(
void *userdata,
int state,
const char *,
const char * )
{
LockEntrySequenceParseContext * pCtx
= static_cast< LockEntrySequenceParseContext * >( userdata );
if ( !pCtx->pEntry )
pCtx->pEntry.reset( new ucb::LockEntry );
switch ( state )
{
case STATE_EXCLUSIVE:
pCtx->pEntry->Scope = ucb::LockScope_EXCLUSIVE;
pCtx->hasScope = true;
break;
case STATE_SHARED:
pCtx->pEntry->Scope = ucb::LockScope_SHARED;
pCtx->hasScope = true;
break;
case STATE_WRITE:
pCtx->pEntry->Type = ucb::LockType_WRITE;
pCtx->hasType = true;
break;
case STATE_LOCKSCOPE:
if ( !pCtx->hasScope )
return 1; // abort
break;
case STATE_LOCKTYPE:
if ( !pCtx->hasType )
return 1; // abort
break;
case STATE_LOCKENTRY:
if ( !pCtx->hasType || !pCtx->hasScope )
return 1; // abort
break;
default:
break;
}
return 0; // zero to continue, non-zero to abort parsing
}
}
// static
bool LockEntrySequence::createFromXML( const OString & rInData,
uno::Sequence<
ucb::LockEntry > & rOutData )
{
const sal_Int32 TOKEN_LENGTH = 12; // </lockentry>
bool success = true;
// rInData may contain multiple <lockentry>...</lockentry> tags.
sal_Int32 nCount = 0;
sal_Int32 nStart = 0;
sal_Int32 nEnd = rInData.indexOf( "</lockentry>" );
while ( nEnd > -1 )
{
ne_xml_parser * parser = ne_xml_create();
if ( !parser )
{
success = false;
break;
}
LockEntrySequenceParseContext aCtx;
ne_xml_push_handler( parser,
LockEntrySequence_startelement_callback,
LockEntrySequence_chardata_callback,
LockEntrySequence_endelement_callback,
&aCtx );
ne_xml_parse( parser,
rInData.getStr() + nStart,
nEnd - nStart + TOKEN_LENGTH );
success = !ne_xml_failed( parser );
ne_xml_destroy( parser );
if ( !success )
break;
if ( aCtx.pEntry )
{
nCount++;
if ( nCount > rOutData.getLength() )
rOutData.realloc( rOutData.getLength() + 2 );
rOutData[ nCount - 1 ] = *aCtx.pEntry;
}
nStart = nEnd + TOKEN_LENGTH;
nEnd = rInData.indexOf( "</lockentry>", nStart );
}
rOutData.realloc( nCount );
return success;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
