1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2013 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Christian Stocker <chregu@php.net> |
16 | Rob Richards <rrichards@php.net> |
17 +----------------------------------------------------------------------+
18 */
19
20 /* $Id$ */
21
22 #ifdef HAVE_CONFIG_H
23 #include "config.h"
24 #endif
25
26 #include "php.h"
27 #if HAVE_LIBXML && HAVE_DOM
28 #include "php_dom.h"
29 #include "dom_ce.h"
30
31 typedef struct _nodeIterator nodeIterator;
32 struct _nodeIterator {
33 int cur;
34 int index;
35 xmlNode *node;
36 };
37
38 typedef struct _notationIterator notationIterator;
39 struct _notationIterator {
40 int cur;
41 int index;
42 xmlNotation *notation;
43 };
44
itemHashScanner(void * payload,void * data,xmlChar * name)45 static void itemHashScanner (void *payload, void *data, xmlChar *name) /* {{{ */
46 {
47 nodeIterator *priv = (nodeIterator *)data;
48
49 if(priv->cur < priv->index) {
50 priv->cur++;
51 } else {
52 if(priv->node == NULL) {
53 priv->node = (xmlNode *)payload;
54 }
55 }
56 }
57 /* }}} */
58
create_notation(const xmlChar * name,const xmlChar * ExternalID,const xmlChar * SystemID)59 xmlNodePtr create_notation(const xmlChar *name, const xmlChar *ExternalID, const xmlChar *SystemID) /* {{{ */
60 {
61 xmlEntityPtr ret;
62
63 ret = (xmlEntityPtr) xmlMalloc(sizeof(xmlEntity));
64 memset(ret, 0, sizeof(xmlEntity));
65 ret->type = XML_NOTATION_NODE;
66 ret->name = xmlStrdup(name);
67 ret->ExternalID = xmlStrdup(ExternalID);
68 ret->SystemID = xmlStrdup(SystemID);
69 ret->length = 0;
70 ret->content = NULL;
71 ret->URI = NULL;
72 ret->orig = NULL;
73 ret->children = NULL;
74 ret->parent = NULL;
75 ret->doc = NULL;
76 ret->_private = NULL;
77 ret->last = NULL;
78 ret->prev = NULL;
79 return((xmlNodePtr) ret);
80 }
81 /* }}} */
82
php_dom_libxml_hash_iter(xmlHashTable * ht,int index)83 xmlNode *php_dom_libxml_hash_iter(xmlHashTable *ht, int index) /* {{{ */
84 {
85 xmlNode *nodep = NULL;
86 nodeIterator *iter;
87 int htsize;
88
89 if ((htsize = xmlHashSize(ht)) > 0 && index < htsize) {
90 iter = emalloc(sizeof(nodeIterator));
91 iter->cur = 0;
92 iter->index = index;
93 iter->node = NULL;
94 xmlHashScan(ht, itemHashScanner, iter);
95 nodep = iter->node;
96 efree(iter);
97 return nodep;
98 } else {
99 return NULL;
100 }
101 }
102 /* }}} */
103
php_dom_libxml_notation_iter(xmlHashTable * ht,int index)104 xmlNode *php_dom_libxml_notation_iter(xmlHashTable *ht, int index) /* {{{ */
105 {
106 notationIterator *iter;
107 xmlNotation *notep = NULL;
108 int htsize;
109
110 if ((htsize = xmlHashSize(ht)) > 0 && index < htsize) {
111 iter = emalloc(sizeof(notationIterator));
112 iter->cur = 0;
113 iter->index = index;
114 iter->notation = NULL;
115 xmlHashScan(ht, itemHashScanner, iter);
116 notep = iter->notation;
117 efree(iter);
118 return create_notation(notep->name, notep->PublicID, notep->SystemID);
119 } else {
120 return NULL;
121 }
122 }
123 /* }}} */
124
php_dom_iterator_dtor(zend_object_iterator * iter TSRMLS_DC)125 static void php_dom_iterator_dtor(zend_object_iterator *iter TSRMLS_DC) /* {{{ */
126 {
127 php_dom_iterator *iterator = (php_dom_iterator *)iter;
128
129 zval_ptr_dtor((zval**)&iterator->intern.data);
130
131 if (iterator->curobj) {
132 zval_ptr_dtor((zval**)&iterator->curobj);
133 }
134
135 efree(iterator);
136 }
137 /* }}} */
138
php_dom_iterator_valid(zend_object_iterator * iter TSRMLS_DC)139 static int php_dom_iterator_valid(zend_object_iterator *iter TSRMLS_DC) /* {{{ */
140 {
141
142 php_dom_iterator *iterator = (php_dom_iterator *)iter;
143
144 if (iterator->curobj) {
145 return SUCCESS;
146 } else {
147 return FAILURE;
148 }
149 }
150 /* }}} */
151
php_dom_iterator_current_data(zend_object_iterator * iter,zval *** data TSRMLS_DC)152 static void php_dom_iterator_current_data(zend_object_iterator *iter, zval ***data TSRMLS_DC) /* {{{ */
153 {
154 php_dom_iterator *iterator = (php_dom_iterator *)iter;
155
156 *data = &iterator->curobj;
157 }
158 /* }}} */
159
php_dom_iterator_current_key(zend_object_iterator * iter,char ** str_key,uint * str_key_len,ulong * int_key TSRMLS_DC)160 static int php_dom_iterator_current_key(zend_object_iterator *iter, char **str_key, uint *str_key_len, ulong *int_key TSRMLS_DC) /* {{{ */
161 {
162 zval *curobj;
163 xmlNodePtr curnode = NULL;
164 dom_object *intern;
165 zval *object;
166 int namelen;
167
168 php_dom_iterator *iterator = (php_dom_iterator *)iter;
169
170 object = (zval *)iterator->intern.data;
171
172 if (instanceof_function(Z_OBJCE_P(object), dom_nodelist_class_entry TSRMLS_CC)) {
173 *int_key = iter->index;
174 return HASH_KEY_IS_LONG;
175 } else {
176 curobj = iterator->curobj;
177
178 intern = (dom_object *)zend_object_store_get_object(curobj TSRMLS_CC);
179 if (intern != NULL && intern->ptr != NULL) {
180 curnode = (xmlNodePtr)((php_libxml_node_ptr *)intern->ptr)->node;
181 } else {
182 return HASH_KEY_NON_EXISTANT;
183 }
184
185 namelen = xmlStrlen(curnode->name);
186 *str_key = estrndup(curnode->name, namelen);
187 *str_key_len = namelen + 1;
188 return HASH_KEY_IS_STRING;
189 }
190 }
191 /* }}} */
192
php_dom_iterator_move_forward(zend_object_iterator * iter TSRMLS_DC)193 static void php_dom_iterator_move_forward(zend_object_iterator *iter TSRMLS_DC) /* {{{ */
194 {
195 zval *curobj, *curattr = NULL;
196 zval *object;
197 xmlNodePtr curnode = NULL, basenode;
198 dom_object *intern;
199 dom_object *nnmap;
200 dom_nnodemap_object *objmap;
201 int ret, previndex=0;
202 HashTable *nodeht;
203 zval **entry;
204
205 php_dom_iterator *iterator = (php_dom_iterator *)iter;
206
207 object = (zval *)iterator->intern.data;
208 nnmap = (dom_object *)zend_object_store_get_object(object TSRMLS_CC);
209 objmap = (dom_nnodemap_object *)nnmap->ptr;
210
211 curobj = iterator->curobj;
212 intern = (dom_object *)zend_object_store_get_object(curobj TSRMLS_CC);
213 if (intern != NULL && intern->ptr != NULL) {
214 if (objmap->nodetype != XML_ENTITY_NODE &&
215 objmap->nodetype != XML_NOTATION_NODE) {
216 if (objmap->nodetype == DOM_NODESET) {
217 nodeht = HASH_OF(objmap->baseobjptr);
218 zend_hash_move_forward(nodeht);
219 if (zend_hash_get_current_data(nodeht, (void **) &entry)==SUCCESS) {
220 curattr = *entry;
221 Z_ADDREF_P(curattr);
222 }
223 } else {
224 curnode = (xmlNodePtr)((php_libxml_node_ptr *)intern->ptr)->node;
225 if (objmap->nodetype == XML_ATTRIBUTE_NODE ||
226 objmap->nodetype == XML_ELEMENT_NODE) {
227 curnode = curnode->next;
228 } else {
229 /* Nav the tree evey time as this is LIVE */
230 basenode = dom_object_get_node(objmap->baseobj);
231 if (basenode && (basenode->type == XML_DOCUMENT_NODE ||
232 basenode->type == XML_HTML_DOCUMENT_NODE)) {
233 basenode = xmlDocGetRootElement((xmlDoc *) basenode);
234 } else if (basenode) {
235 basenode = basenode->children;
236 } else {
237 goto err;
238 }
239 curnode = dom_get_elements_by_tag_name_ns_raw(basenode, objmap->ns, objmap->local, &previndex, iter->index);
240 }
241 }
242 } else {
243 if (objmap->nodetype == XML_ENTITY_NODE) {
244 curnode = php_dom_libxml_hash_iter(objmap->ht, iter->index);
245 } else {
246 curnode = php_dom_libxml_notation_iter(objmap->ht, iter->index);
247 }
248 }
249 }
250 err:
251 zval_ptr_dtor((zval**)&curobj);
252 if (curnode) {
253 MAKE_STD_ZVAL(curattr);
254 curattr = php_dom_create_object(curnode, &ret, NULL, curattr, objmap->baseobj TSRMLS_CC);
255 }
256
257 iterator->curobj = curattr;
258 }
259 /* }}} */
260
261 zend_object_iterator_funcs php_dom_iterator_funcs = {
262 php_dom_iterator_dtor,
263 php_dom_iterator_valid,
264 php_dom_iterator_current_data,
265 php_dom_iterator_current_key,
266 php_dom_iterator_move_forward,
267 NULL
268 };
269
php_dom_get_iterator(zend_class_entry * ce,zval * object,int by_ref TSRMLS_DC)270 zend_object_iterator *php_dom_get_iterator(zend_class_entry *ce, zval *object, int by_ref TSRMLS_DC) /* {{{ */
271 {
272 dom_object *intern;
273 dom_nnodemap_object *objmap;
274 xmlNodePtr nodep, curnode=NULL;
275 zval *curattr = NULL;
276 int ret, curindex = 0;
277 HashTable *nodeht;
278 zval **entry;
279 php_dom_iterator *iterator;
280
281 if (by_ref) {
282 zend_error(E_ERROR, "An iterator cannot be used with foreach by reference");
283 }
284 iterator = emalloc(sizeof(php_dom_iterator));
285
286 Z_ADDREF_P(object);
287 iterator->intern.data = (void*)object;
288 iterator->intern.funcs = &php_dom_iterator_funcs;
289
290 intern = (dom_object *)zend_object_store_get_object(object TSRMLS_CC);
291 objmap = (dom_nnodemap_object *)intern->ptr;
292 if (objmap != NULL) {
293 if (objmap->nodetype != XML_ENTITY_NODE &&
294 objmap->nodetype != XML_NOTATION_NODE) {
295 if (objmap->nodetype == DOM_NODESET) {
296 nodeht = HASH_OF(objmap->baseobjptr);
297 zend_hash_internal_pointer_reset(nodeht);
298 if (zend_hash_get_current_data(nodeht, (void **) &entry)==SUCCESS) {
299 curattr = *entry;
300 Z_ADDREF_P(curattr);
301 }
302 } else {
303 nodep = (xmlNode *)dom_object_get_node(objmap->baseobj);
304 if (!nodep) {
305 goto err;
306 }
307 if (objmap->nodetype == XML_ATTRIBUTE_NODE || objmap->nodetype == XML_ELEMENT_NODE) {
308 if (objmap->nodetype == XML_ATTRIBUTE_NODE) {
309 curnode = (xmlNodePtr) nodep->properties;
310 } else {
311 curnode = (xmlNodePtr) nodep->children;
312 }
313 } else {
314 if (nodep->type == XML_DOCUMENT_NODE || nodep->type == XML_HTML_DOCUMENT_NODE) {
315 nodep = xmlDocGetRootElement((xmlDoc *) nodep);
316 } else {
317 nodep = nodep->children;
318 }
319 curnode = dom_get_elements_by_tag_name_ns_raw(nodep, objmap->ns, objmap->local, &curindex, 0);
320 }
321 }
322 } else {
323 if (objmap->nodetype == XML_ENTITY_NODE) {
324 curnode = php_dom_libxml_hash_iter(objmap->ht, 0);
325 } else {
326 curnode = php_dom_libxml_notation_iter(objmap->ht, 0);
327 }
328 }
329 }
330 err:
331 if (curnode) {
332 MAKE_STD_ZVAL(curattr);
333 curattr = php_dom_create_object(curnode, &ret, NULL, curattr, objmap->baseobj TSRMLS_CC);
334 }
335
336 iterator->curobj = curattr;
337
338 return (zend_object_iterator*)iterator;
339 }
340 /* }}} */
341
342 #endif
343
344 /*
345 * Local variables:
346 * tab-width: 4
347 * c-basic-offset: 4
348 * End:
349 * vim600: noet sw=4 ts=4 fdm=marker
350 * vim<600: noet sw=4 ts=4
351 */
352
