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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*************************************************************************
3 : *
4 : * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 : *
6 : * Copyright 2000, 2010 Oracle and/or its affiliates.
7 : *
8 : * OpenOffice.org - a multi-platform office productivity suite
9 : *
10 : * This file is part of OpenOffice.org.
11 : *
12 : * OpenOffice.org is free software: you can redistribute it and/or modify
13 : * it under the terms of the GNU Lesser General Public License version 3
14 : * only, as published by the Free Software Foundation.
15 : *
16 : * OpenOffice.org is distributed in the hope that it will be useful,
17 : * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 : * GNU Lesser General Public License version 3 for more details
20 : * (a copy is included in the LICENSE file that accompanied this code).
21 : *
22 : * You should have received a copy of the GNU Lesser General Public License
23 : * version 3 along with OpenOffice.org. If not, see
24 : * <http://www.openoffice.org/license.html>
25 : * for a copy of the LGPLv3 License.
26 : *
27 : ************************************************************************/
28 :
29 : #include <config_lgpl.h>
30 : #include <string.h>
31 : #include <ne_xml.h>
32 : #include "LockEntrySequence.hxx"
33 :
34 : using namespace webdav_ucp;
35 : using namespace com::sun::star;
36 :
37 :
38 :
39 : struct LockEntrySequenceParseContext
40 : {
41 : ucb::LockEntry * pEntry;
42 : bool hasScope;
43 : bool hasType;
44 :
45 0 : LockEntrySequenceParseContext()
46 0 : : pEntry( 0 ), hasScope( false ), hasType( false ) {}
47 0 : ~LockEntrySequenceParseContext() { delete pEntry; }
48 : };
49 :
50 : #define STATE_TOP (1)
51 :
52 : #define STATE_LOCKENTRY (STATE_TOP)
53 : #define STATE_LOCKSCOPE (STATE_TOP + 1)
54 : #define STATE_EXCLUSIVE (STATE_TOP + 2)
55 : #define STATE_SHARED (STATE_TOP + 3)
56 : #define STATE_LOCKTYPE (STATE_TOP + 4)
57 : #define STATE_WRITE (STATE_TOP + 5)
58 :
59 :
60 0 : extern "C" int LockEntrySequence_startelement_callback(
61 : void *,
62 : int parent,
63 : const char * /*nspace*/,
64 : const char *name,
65 : const char ** )
66 : {
67 0 : if ( name != 0 )
68 : {
69 0 : switch ( parent )
70 : {
71 : case NE_XML_STATEROOT:
72 0 : if ( strcmp( name, "lockentry" ) == 0 )
73 0 : return STATE_LOCKENTRY;
74 0 : break;
75 :
76 : case STATE_LOCKENTRY:
77 0 : if ( strcmp( name, "lockscope" ) == 0 )
78 0 : return STATE_LOCKSCOPE;
79 0 : else if ( strcmp( name, "locktype" ) == 0 )
80 0 : return STATE_LOCKTYPE;
81 :
82 : #define IIS_BUGS_WORKAROUND
83 :
84 : #ifdef IIS_BUGS_WORKAROUND
85 : /* IIS (6) returns XML violating RFC 4918
86 : for DAV:supportedlock property value.
87 :
88 : <lockentry>
89 : <write></write>
90 : <shared></shared>
91 : </lockentry>
92 : <lockentry>
93 : <write></write>
94 : <exclusive></exclusive>
95 : </lockentry>
96 :
97 : Bother...
98 : */
99 0 : else if ( strcmp( name, "exclusive" ) == 0 )
100 0 : return STATE_EXCLUSIVE;
101 0 : else if ( strcmp( name, "shared" ) == 0 )
102 0 : return STATE_SHARED;
103 0 : else if ( strcmp( name, "write" ) == 0 )
104 0 : return STATE_WRITE;
105 : #endif
106 0 : break;
107 :
108 : case STATE_LOCKSCOPE:
109 0 : if ( strcmp( name, "exclusive" ) == 0 )
110 0 : return STATE_EXCLUSIVE;
111 0 : else if ( strcmp( name, "shared" ) == 0 )
112 0 : return STATE_SHARED;
113 0 : break;
114 :
115 : case STATE_LOCKTYPE:
116 0 : if ( strcmp( name, "write" ) == 0 )
117 0 : return STATE_WRITE;
118 0 : break;
119 : }
120 : }
121 0 : return NE_XML_DECLINE;
122 : }
123 :
124 :
125 0 : extern "C" int LockEntrySequence_chardata_callback(
126 : void *,
127 : int,
128 : const char *,
129 : size_t )
130 : {
131 0 : return 0; // zero to continue, non-zero to abort parsing
132 : }
133 :
134 :
135 0 : extern "C" int LockEntrySequence_endelement_callback(
136 : void *userdata,
137 : int state,
138 : const char *,
139 : const char * )
140 : {
141 : LockEntrySequenceParseContext * pCtx
142 0 : = static_cast< LockEntrySequenceParseContext * >( userdata );
143 0 : if ( !pCtx->pEntry )
144 0 : pCtx->pEntry = new ucb::LockEntry;
145 :
146 0 : switch ( state )
147 : {
148 : case STATE_EXCLUSIVE:
149 0 : pCtx->pEntry->Scope = ucb::LockScope_EXCLUSIVE;
150 0 : pCtx->hasScope = true;
151 0 : break;
152 :
153 : case STATE_SHARED:
154 0 : pCtx->pEntry->Scope = ucb::LockScope_SHARED;
155 0 : pCtx->hasScope = true;
156 0 : break;
157 :
158 : case STATE_WRITE:
159 0 : pCtx->pEntry->Type = ucb::LockType_WRITE;
160 0 : pCtx->hasType = true;
161 0 : break;
162 :
163 : case STATE_LOCKSCOPE:
164 0 : if ( !pCtx->hasScope )
165 0 : return 1; // abort
166 0 : break;
167 :
168 : case STATE_LOCKTYPE:
169 0 : if ( !pCtx->hasType )
170 0 : return 1; // abort
171 0 : break;
172 :
173 : case STATE_LOCKENTRY:
174 0 : if ( !pCtx->hasType || !pCtx->hasScope )
175 0 : return 1; // abort
176 0 : break;
177 :
178 : default:
179 0 : break;
180 : }
181 0 : return 0; // zero to continue, non-zero to abort parsing
182 : }
183 :
184 :
185 : // static
186 0 : bool LockEntrySequence::createFromXML( const OString & rInData,
187 : uno::Sequence<
188 : ucb::LockEntry > & rOutData )
189 : {
190 0 : const sal_Int32 TOKEN_LENGTH = 12; // </lockentry>
191 0 : bool success = true;
192 :
193 : // rInData may contain multiple <lockentry>...</lockentry> tags.
194 0 : sal_Int32 nCount = 0;
195 0 : sal_Int32 nStart = 0;
196 0 : sal_Int32 nEnd = rInData.indexOf( "</lockentry>" );
197 0 : while ( nEnd > -1 )
198 : {
199 0 : ne_xml_parser * parser = ne_xml_create();
200 0 : if ( !parser )
201 : {
202 0 : success = false;
203 0 : break;
204 : }
205 :
206 0 : LockEntrySequenceParseContext aCtx;
207 : ne_xml_push_handler( parser,
208 : LockEntrySequence_startelement_callback,
209 : LockEntrySequence_chardata_callback,
210 : LockEntrySequence_endelement_callback,
211 0 : &aCtx );
212 :
213 : ne_xml_parse( parser,
214 0 : rInData.getStr() + nStart,
215 0 : nEnd - nStart + TOKEN_LENGTH );
216 :
217 0 : success = !ne_xml_failed( parser );
218 :
219 0 : ne_xml_destroy( parser );
220 :
221 0 : if ( !success )
222 0 : break;
223 :
224 0 : if ( aCtx.pEntry )
225 : {
226 0 : nCount++;
227 0 : if ( nCount > rOutData.getLength() )
228 0 : rOutData.realloc( rOutData.getLength() + 2 );
229 :
230 0 : rOutData[ nCount - 1 ] = *aCtx.pEntry;
231 : }
232 :
233 0 : nStart = nEnd + TOKEN_LENGTH;
234 0 : nEnd = rInData.indexOf( "</lockentry>", nStart );
235 0 : }
236 :
237 0 : rOutData.realloc( nCount );
238 0 : return success;
239 : }
240 :
241 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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