xref: /PHP-5.6/ext/xsl/xsltprocessor.c (revision c11b23c4)
1 /*
2    +----------------------------------------------------------------------+
3    | PHP Version 5                                                        |
4    +----------------------------------------------------------------------+
5    | Copyright (c) 1997-2016 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 #include "php_xsl.h"
28 #include "ext/libxml/php_libxml.h"
29 
30 /* {{{ arginfo */
31 ZEND_BEGIN_ARG_INFO_EX(arginfo_xsl_xsltprocessor_import_stylesheet, 0, 0, 1)
32 	ZEND_ARG_INFO(0, doc)
33 ZEND_END_ARG_INFO();
34 
35 ZEND_BEGIN_ARG_INFO_EX(arginfo_xsl_xsltprocessor_transform_to_doc, 0, 0, 1)
36 	ZEND_ARG_INFO(0, doc)
37 ZEND_END_ARG_INFO();
38 
39 ZEND_BEGIN_ARG_INFO_EX(arginfo_xsl_xsltprocessor_transform_to_uri, 0, 0, 2)
40 	ZEND_ARG_INFO(0, doc)
41 	ZEND_ARG_INFO(0, uri)
42 ZEND_END_ARG_INFO();
43 
44 ZEND_BEGIN_ARG_INFO_EX(arginfo_xsl_xsltprocessor_transform_to_xml, 0, 0, 1)
45 	ZEND_ARG_INFO(0, doc)
46 ZEND_END_ARG_INFO();
47 
48 ZEND_BEGIN_ARG_INFO_EX(arginfo_xsl_xsltprocessor_set_parameter, 0, 0, 2)
49 	ZEND_ARG_INFO(0, namespace)
50 	ZEND_ARG_INFO(0, name)
51 	ZEND_ARG_INFO(0, value)
52 ZEND_END_ARG_INFO();
53 
54 ZEND_BEGIN_ARG_INFO_EX(arginfo_xsl_xsltprocessor_get_parameter, 0, 0, 2)
55 	ZEND_ARG_INFO(0, namespace)
56 	ZEND_ARG_INFO(0, name)
57 ZEND_END_ARG_INFO();
58 
59 ZEND_BEGIN_ARG_INFO_EX(arginfo_xsl_xsltprocessor_remove_parameter, 0, 0, 2)
60 	ZEND_ARG_INFO(0, namespace)
61 	ZEND_ARG_INFO(0, name)
62 ZEND_END_ARG_INFO();
63 
64 ZEND_BEGIN_ARG_INFO_EX(arginfo_xsl_xsltprocessor_has_exslt_support, 0, 0, 0)
65 ZEND_END_ARG_INFO();
66 
67 ZEND_BEGIN_ARG_INFO_EX(arginfo_xsl_xsltprocessor_register_php_functions, 0, 0, 0)
68 	ZEND_ARG_INFO(0, restrict)
69 ZEND_END_ARG_INFO();
70 
71 ZEND_BEGIN_ARG_INFO_EX(arginfo_xsl_xsltprocessor_set_profiling, 0, 0, 1)
72 	ZEND_ARG_INFO(0, filename)
73 ZEND_END_ARG_INFO();
74 
75 ZEND_BEGIN_ARG_INFO_EX(arginfo_xsl_xsltprocessor_set_security_prefs, 0, 0, 1)
76 	ZEND_ARG_INFO(0, securityPrefs)
77 ZEND_END_ARG_INFO();
78 
79 ZEND_BEGIN_ARG_INFO_EX(arginfo_xsl_xsltprocessor_get_security_prefs, 0, 0, 0)
80 ZEND_END_ARG_INFO();
81 /* }}} */
82 
83 /*
84 * class xsl_xsltprocessor
85 *
86 * URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#
87 * Since:
88 */
89 
90 const zend_function_entry php_xsl_xsltprocessor_class_functions[] = {
91 	PHP_FALIAS(importStylesheet, xsl_xsltprocessor_import_stylesheet, arginfo_xsl_xsltprocessor_import_stylesheet)
92 	PHP_FALIAS(transformToDoc, xsl_xsltprocessor_transform_to_doc, arginfo_xsl_xsltprocessor_transform_to_doc)
93 	PHP_FALIAS(transformToUri, xsl_xsltprocessor_transform_to_uri, arginfo_xsl_xsltprocessor_transform_to_uri)
94 	PHP_FALIAS(transformToXml, xsl_xsltprocessor_transform_to_xml, arginfo_xsl_xsltprocessor_transform_to_xml)
95 	PHP_FALIAS(setParameter, xsl_xsltprocessor_set_parameter, arginfo_xsl_xsltprocessor_set_parameter)
96 	PHP_FALIAS(getParameter, xsl_xsltprocessor_get_parameter, arginfo_xsl_xsltprocessor_get_parameter)
97 	PHP_FALIAS(removeParameter, xsl_xsltprocessor_remove_parameter, arginfo_xsl_xsltprocessor_remove_parameter)
98 	PHP_FALIAS(hasExsltSupport, xsl_xsltprocessor_has_exslt_support, arginfo_xsl_xsltprocessor_has_exslt_support)
99 	PHP_FALIAS(registerPHPFunctions, xsl_xsltprocessor_register_php_functions, arginfo_xsl_xsltprocessor_register_php_functions)
100 	PHP_FALIAS(setProfiling, xsl_xsltprocessor_set_profiling, arginfo_xsl_xsltprocessor_set_profiling)
101 	PHP_FALIAS(setSecurityPrefs, xsl_xsltprocessor_set_security_prefs, arginfo_xsl_xsltprocessor_set_security_prefs)
102 	PHP_FALIAS(getSecurityPrefs, xsl_xsltprocessor_get_security_prefs, arginfo_xsl_xsltprocessor_get_security_prefs)
103 	{NULL, NULL, NULL}
104 };
105 
106 /* {{{ php_xsl_xslt_string_to_xpathexpr()
107    Translates a string to a XPath Expression */
php_xsl_xslt_string_to_xpathexpr(const char * str TSRMLS_DC)108 static char *php_xsl_xslt_string_to_xpathexpr(const char *str TSRMLS_DC)
109 {
110 	const xmlChar *string = (const xmlChar *)str;
111 
112 	xmlChar *value;
113 	int str_len;
114 
115 	str_len = xmlStrlen(string) + 3;
116 
117 	if (xmlStrchr(string, '"')) {
118 		if (xmlStrchr(string, '\'')) {
119 			php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot create XPath expression (string contains both quote and double-quotes)");
120 			return NULL;
121 		}
122 		value = (xmlChar*) safe_emalloc (str_len, sizeof(xmlChar), 0);
123 		snprintf(value, str_len, "'%s'", string);
124 	} else {
125 		value = (xmlChar*) safe_emalloc (str_len, sizeof(xmlChar), 0);
126 		snprintf(value, str_len, "\"%s\"", string);
127 	}
128 	return (char *) value;
129 }
130 /* }}} */
131 
132 /* {{{ php_xsl_xslt_make_params()
133    Translates a PHP array to a libxslt parameters array */
php_xsl_xslt_make_params(HashTable * parht,int xpath_params TSRMLS_DC)134 static char **php_xsl_xslt_make_params(HashTable *parht, int xpath_params TSRMLS_DC)
135 {
136 
137 	int parsize;
138 	zval **value;
139 	char *xpath_expr, *string_key = NULL;
140 	ulong num_key;
141 	char **params = NULL;
142 	int i = 0;
143 
144 	parsize = (2 * zend_hash_num_elements(parht) + 1) * sizeof(char *);
145 	params = (char **)safe_emalloc((2 * zend_hash_num_elements(parht) + 1), sizeof(char *), 0);
146 	memset((char *)params, 0, parsize);
147 
148 	for (zend_hash_internal_pointer_reset(parht);
149 		zend_hash_get_current_data(parht, (void **)&value) == SUCCESS;
150 		zend_hash_move_forward(parht)) {
151 
152 		if (zend_hash_get_current_key(parht, &string_key, &num_key, 1) != HASH_KEY_IS_STRING) {
153 			php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid argument or parameter array");
154 			efree(params);
155 			return NULL;
156 		} else {
157 			if (Z_TYPE_PP(value) != IS_STRING) {
158 				SEPARATE_ZVAL(value);
159 				convert_to_string(*value);
160 			}
161 
162 			if (!xpath_params) {
163 				xpath_expr = php_xsl_xslt_string_to_xpathexpr(Z_STRVAL_PP(value) TSRMLS_CC);
164 			} else {
165 				xpath_expr = estrndup(Z_STRVAL_PP(value), Z_STRLEN_PP(value));
166 			}
167 			if (xpath_expr) {
168 				params[i++] = string_key;
169 				params[i++] = xpath_expr;
170 			} else {
171 				efree(string_key);
172 			}
173 		}
174 	}
175 
176 	params[i++] = NULL;
177 
178 	return params;
179 }
180 /* }}} */
181 
xsl_ext_function_php(xmlXPathParserContextPtr ctxt,int nargs,int type)182 static void xsl_ext_function_php(xmlXPathParserContextPtr ctxt, int nargs, int type) /* {{{ */
183 {
184 	xsltTransformContextPtr tctxt;
185 	zval **args;
186 	zval *retval;
187 	int result, i, ret;
188 	int error = 0;
189 	zend_fcall_info fci;
190 	zval handler;
191 	xmlXPathObjectPtr obj;
192 	char *str;
193 	char *callable = NULL;
194 	xsl_object *intern;
195 
196 	TSRMLS_FETCH();
197 
198 	if (! zend_is_executing(TSRMLS_C)) {
199 		xsltGenericError(xsltGenericErrorContext,
200 		"xsltExtFunctionTest: Function called from outside of PHP\n");
201 		error = 1;
202 	} else {
203 		tctxt = xsltXPathGetTransformContext(ctxt);
204 		if (tctxt == NULL) {
205 			xsltGenericError(xsltGenericErrorContext,
206 			"xsltExtFunctionTest: failed to get the transformation context\n");
207 			error = 1;
208 		} else {
209 			intern = (xsl_object *) tctxt->_private;
210 			if (intern == NULL) {
211 				xsltGenericError(xsltGenericErrorContext,
212 				"xsltExtFunctionTest: failed to get the internal object\n");
213 				error = 1;
214 			}
215 			else if (intern->registerPhpFunctions == 0) {
216 				xsltGenericError(xsltGenericErrorContext,
217 				"xsltExtFunctionTest: PHP Object did not register PHP functions\n");
218 				error = 1;
219 			}
220 		}
221 	}
222 
223 	if (error == 1) {
224 		for (i = nargs - 1; i >= 0; i--) {
225 			obj = valuePop(ctxt);
226 			if (obj) {
227 				xmlXPathFreeObject(obj);
228 			}
229 		}
230 		return;
231 	}
232 
233 	fci.param_count = nargs - 1;
234 	if (fci.param_count > 0) {
235 		fci.params = safe_emalloc(fci.param_count, sizeof(zval**), 0);
236 		args = safe_emalloc(fci.param_count, sizeof(zval *), 0);
237 	}
238 	/* Reverse order to pop values off ctxt stack */
239 	for (i = nargs - 2; i >= 0; i--) {
240 		obj = valuePop(ctxt);
241 		MAKE_STD_ZVAL(args[i]);
242 		if (obj == NULL) {
243 			ZVAL_NULL(args[i]);
244 			continue;
245 		}
246 		switch (obj->type) {
247 			case XPATH_STRING:
248 				ZVAL_STRING(args[i],  obj->stringval, 1);
249 				break;
250 			case XPATH_BOOLEAN:
251 				ZVAL_BOOL(args[i],  obj->boolval);
252 				break;
253 			case XPATH_NUMBER:
254 				ZVAL_DOUBLE(args[i], obj->floatval);
255 				break;
256 			case XPATH_NODESET:
257 				if (type == 1) {
258 					str = xmlXPathCastToString(obj);
259 					ZVAL_STRING(args[i], str, 1);
260 					xmlFree(str);
261 				} else if (type == 2) {
262 					int j;
263 					dom_object *domintern = (dom_object *)intern->doc;
264 					array_init(args[i]);
265 					if (obj->nodesetval && obj->nodesetval->nodeNr > 0) {
266 						for (j = 0; j < obj->nodesetval->nodeNr; j++) {
267 							xmlNodePtr node = obj->nodesetval->nodeTab[j];
268 							zval *child;
269 							MAKE_STD_ZVAL(child);
270 							/* not sure, if we need this... it's copied from xpath.c */
271 							if (node->type == XML_NAMESPACE_DECL) {
272 								xmlNsPtr curns;
273 								xmlNodePtr nsparent;
274 
275 								nsparent = node->_private;
276 								curns = xmlNewNs(NULL, node->name, NULL);
277 								if (node->children) {
278 									curns->prefix = xmlStrdup((char *) node->children);
279 								}
280 								if (node->children) {
281 									node = xmlNewDocNode(node->doc, NULL, (char *) node->children, node->name);
282 								} else {
283 									node = xmlNewDocNode(node->doc, NULL, "xmlns", node->name);
284 								}
285 								node->type = XML_NAMESPACE_DECL;
286 								node->parent = nsparent;
287 								node->ns = curns;
288 							} else {
289 								node = xmlDocCopyNodeList(domintern->document->ptr, node);
290 							}
291 
292 							child = php_dom_create_object(node, &ret, child, domintern TSRMLS_CC);
293 							add_next_index_zval(args[i], child);
294 						}
295 					}
296 				}
297 				break;
298 			default:
299 				str = xmlXPathCastToString(obj);
300 				ZVAL_STRING(args[i], str, 1);
301 				xmlFree(str);
302 		}
303 		xmlXPathFreeObject(obj);
304 		fci.params[i] = &args[i];
305 	}
306 
307 	fci.size = sizeof(fci);
308 	fci.function_table = EG(function_table);
309 
310 	obj = valuePop(ctxt);
311 	if (obj == NULL || obj->stringval == NULL) {
312 		if (obj) {
313 			php_error_docref(NULL TSRMLS_CC, E_WARNING, "Handler name must be a string");
314 			xmlXPathFreeObject(obj);
315 		}
316 		valuePush(ctxt, xmlXPathNewString(""));
317 		if (fci.param_count > 0) {
318 			for (i = 0; i < nargs - 1; i++) {
319 				zval_ptr_dtor(&args[i]);
320 			}
321 			efree(args);
322 			efree(fci.params);
323 		}
324 		return;
325 	}
326 	INIT_PZVAL(&handler);
327 	ZVAL_STRING(&handler, obj->stringval, 1);
328 	xmlXPathFreeObject(obj);
329 
330 	fci.function_name = &handler;
331 	fci.symbol_table = NULL;
332 	fci.object_ptr = NULL;
333 	fci.retval_ptr_ptr = &retval;
334 	fci.no_separation = 0;
335 	/*fci.function_handler_cache = &function_ptr;*/
336 	if (!zend_make_callable(&handler, &callable TSRMLS_CC)) {
337 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to call handler %s()", callable);
338 		valuePush(ctxt, xmlXPathNewString(""));
339 	} else if ( intern->registerPhpFunctions == 2 && zend_hash_exists(intern->registered_phpfunctions, callable, strlen(callable) + 1) == 0) {
340 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Not allowed to call handler '%s()'", callable);
341 		/* Push an empty string, so that we at least have an xslt result... */
342 		valuePush(ctxt, xmlXPathNewString(""));
343 	} else {
344 		result = zend_call_function(&fci, NULL TSRMLS_CC);
345 		if (result == FAILURE) {
346 			if (Z_TYPE(handler) == IS_STRING) {
347 				php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to call handler %s()", Z_STRVAL_P(&handler));
348 				valuePush(ctxt, xmlXPathNewString(""));
349 			}
350 		/* retval is == NULL, when an exception occurred, don't report anything, because PHP itself will handle that */
351 		} else if (retval == NULL) {
352 		} else {
353 			if (retval->type == IS_OBJECT && instanceof_function( Z_OBJCE_P(retval), dom_node_class_entry TSRMLS_CC)) {
354 				xmlNode *nodep;
355 				dom_object *obj;
356 				if (intern->node_list == NULL) {
357 					ALLOC_HASHTABLE(intern->node_list);
358 					zend_hash_init(intern->node_list, 0, NULL, ZVAL_PTR_DTOR, 0);
359 				}
360 				zval_add_ref(&retval);
361 				zend_hash_next_index_insert(intern->node_list, &retval, sizeof(zval *), NULL);
362 				obj = (dom_object *)zend_object_store_get_object(retval TSRMLS_CC);
363 				nodep = dom_object_get_node(obj);
364 				valuePush(ctxt, xmlXPathNewNodeSet(nodep));
365 			} else if (retval->type == IS_BOOL) {
366 				valuePush(ctxt, xmlXPathNewBoolean(retval->value.lval));
367 			} else if (retval->type == IS_OBJECT) {
368 				php_error_docref(NULL TSRMLS_CC, E_WARNING, "A PHP Object cannot be converted to a XPath-string");
369 				valuePush(ctxt, xmlXPathNewString(""));
370 			} else {
371 				convert_to_string_ex(&retval);
372 				valuePush(ctxt, xmlXPathNewString( Z_STRVAL_P(retval)));
373 			}
374 			zval_ptr_dtor(&retval);
375 		}
376 	}
377 	efree(callable);
378 	zval_dtor(&handler);
379 	if (fci.param_count > 0) {
380 		for (i = 0; i < nargs - 1; i++) {
381 			zval_ptr_dtor(&args[i]);
382 		}
383 		efree(args);
384 		efree(fci.params);
385 	}
386 }
387 /* }}} */
388 
xsl_ext_function_string_php(xmlXPathParserContextPtr ctxt,int nargs)389 void xsl_ext_function_string_php(xmlXPathParserContextPtr ctxt, int nargs) /* {{{ */
390 {
391 	xsl_ext_function_php(ctxt, nargs, 1);
392 }
393 /* }}} */
394 
xsl_ext_function_object_php(xmlXPathParserContextPtr ctxt,int nargs)395 void xsl_ext_function_object_php(xmlXPathParserContextPtr ctxt, int nargs) /* {{{ */
396 {
397 	xsl_ext_function_php(ctxt, nargs, 2);
398 }
399 /* }}} */
400 
401 /* {{{ proto void xsl_xsltprocessor_import_stylesheet(domdocument doc);
402 URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#
403 Since:
404 */
PHP_FUNCTION(xsl_xsltprocessor_import_stylesheet)405 PHP_FUNCTION(xsl_xsltprocessor_import_stylesheet)
406 {
407 	zval *id, *docp = NULL;
408 	xmlDoc *doc = NULL, *newdoc = NULL;
409 	xsltStylesheetPtr sheetp, oldsheetp;
410 	xsl_object *intern;
411 	int prevSubstValue, prevExtDtdValue, clone_docu = 0;
412 	xmlNode *nodep = NULL;
413 	zend_object_handlers *std_hnd;
414 	zval *cloneDocu, *member;
415 
416 	if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Oo", &id, xsl_xsltprocessor_class_entry, &docp) == FAILURE) {
417 		RETURN_FALSE;
418 	}
419 
420 	nodep = php_libxml_import_node(docp TSRMLS_CC);
421 
422 	if (nodep) {
423 		doc = nodep->doc;
424 	}
425 	if (doc == NULL) {
426 		php_error(E_WARNING, "Invalid Document");
427 		RETURN_FALSE;
428 	}
429 
430 	/* libxslt uses _private, so we must copy the imported
431 	stylesheet document otherwise the node proxies will be a mess */
432 	newdoc = xmlCopyDoc(doc, 1);
433 	xmlNodeSetBase((xmlNodePtr) newdoc, (xmlChar *)doc->URL);
434 	prevSubstValue = xmlSubstituteEntitiesDefault(1);
435 	prevExtDtdValue = xmlLoadExtDtdDefaultValue;
436 	xmlLoadExtDtdDefaultValue = XML_DETECT_IDS | XML_COMPLETE_ATTRS;
437 
438 	sheetp = xsltParseStylesheetDoc(newdoc);
439 	xmlSubstituteEntitiesDefault(prevSubstValue);
440 	xmlLoadExtDtdDefaultValue = prevExtDtdValue;
441 
442 	if (!sheetp) {
443 		xmlFreeDoc(newdoc);
444 		RETURN_FALSE;
445 	}
446 
447 	intern = (xsl_object *)zend_object_store_get_object(id TSRMLS_CC);
448 
449 	std_hnd = zend_get_std_object_handlers();
450 	MAKE_STD_ZVAL(member);
451 	ZVAL_STRING(member, "cloneDocument", 0);
452 	cloneDocu = std_hnd->read_property(id, member, BP_VAR_IS, NULL TSRMLS_CC);
453 	if (Z_TYPE_P(cloneDocu) != IS_NULL) {
454 		convert_to_long(cloneDocu);
455 		clone_docu = Z_LVAL_P(cloneDocu);
456 	}
457 	efree(member);
458 	if (clone_docu == 0) {
459 		/* check if the stylesheet is using xsl:key, if yes, we have to clone the document _always_ before a transformation */
460 		nodep = xmlDocGetRootElement(sheetp->doc);
461 		if (nodep && (nodep = nodep->children)) {
462 			while (nodep) {
463 				if (nodep->type == XML_ELEMENT_NODE && xmlStrEqual(nodep->name, "key") && xmlStrEqual(nodep->ns->href, XSLT_NAMESPACE)) {
464 					intern->hasKeys = 1;
465 					break;
466 				}
467 				nodep = nodep->next;
468 			}
469 		}
470 	} else {
471 		intern->hasKeys = clone_docu;
472 	}
473 
474 	if ((oldsheetp = (xsltStylesheetPtr)intern->ptr)) {
475 		/* free wrapper */
476 		if (((xsltStylesheetPtr) intern->ptr)->_private != NULL) {
477 			((xsltStylesheetPtr) intern->ptr)->_private = NULL;
478 		}
479 		xsltFreeStylesheet((xsltStylesheetPtr) intern->ptr);
480 		intern->ptr = NULL;
481 	}
482 
483 	php_xsl_set_object(id, sheetp TSRMLS_CC);
484 	RETVAL_TRUE;
485 }
486 /* }}} end xsl_xsltprocessor_import_stylesheet */
487 
php_xsl_apply_stylesheet(zval * id,xsl_object * intern,xsltStylesheetPtr style,zval * docp TSRMLS_DC)488 static xmlDocPtr php_xsl_apply_stylesheet(zval *id, xsl_object *intern, xsltStylesheetPtr style, zval *docp TSRMLS_DC) /* {{{ */
489 {
490 	xmlDocPtr newdocp = NULL;
491 	xmlDocPtr doc = NULL;
492 	xmlNodePtr node = NULL;
493 	xsltTransformContextPtr ctxt;
494 	php_libxml_node_object *object;
495 	char **params = NULL;
496 	int clone;
497 	zval *doXInclude, *member;
498 	zend_object_handlers *std_hnd;
499 	FILE *f;
500 	int secPrefsError = 0;
501 	int secPrefsValue, secPrefsIni;
502 	xsltSecurityPrefsPtr secPrefs = NULL;
503 
504 	node = php_libxml_import_node(docp TSRMLS_CC);
505 
506 	if (node) {
507 		doc = node->doc;
508 	}
509 	if (doc == NULL) {
510 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid Document");
511 		return NULL;
512 	}
513 
514 	if (style == NULL) {
515 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "No stylesheet associated to this object");
516 		return NULL;
517 	}
518 
519 	if (intern->profiling) {
520 		if (php_check_open_basedir(intern->profiling TSRMLS_CC)) {
521 			f = NULL;
522 		} else {
523 			f = VCWD_FOPEN(intern->profiling, "w");
524 		}
525 	} else {
526 		f = NULL;
527 	}
528 
529 	if (intern->parameter) {
530 		params = php_xsl_xslt_make_params(intern->parameter, 0 TSRMLS_CC);
531 	}
532 
533 	intern->doc = emalloc(sizeof(php_libxml_node_object));
534 	memset(intern->doc, 0, sizeof(php_libxml_node_object));
535 
536 	if (intern->hasKeys == 1) {
537 		doc = xmlCopyDoc(doc, 1);
538 	} else {
539 		object = (php_libxml_node_object *)zend_object_store_get_object(docp TSRMLS_CC);
540 		intern->doc->document = object->document;
541 	}
542 
543 	php_libxml_increment_doc_ref(intern->doc, doc TSRMLS_CC);
544 
545 	ctxt = xsltNewTransformContext(style, doc);
546 	ctxt->_private = (void *) intern;
547 
548 	std_hnd = zend_get_std_object_handlers();
549 
550 	MAKE_STD_ZVAL(member);
551 	ZVAL_STRING(member, "doXInclude", 0);
552 	doXInclude = std_hnd->read_property(id, member, BP_VAR_IS, NULL TSRMLS_CC);
553 	if (Z_TYPE_P(doXInclude) != IS_NULL) {
554 		convert_to_long(doXInclude);
555 		ctxt->xinclude = Z_LVAL_P(doXInclude);
556 	}
557 	efree(member);
558 
559 	secPrefsValue = intern->securityPrefs;
560 
561 	/* This whole if block can be removed, when we remove the xsl.security_prefs php.ini option in PHP 6+ */
562 	secPrefsIni= INI_INT("xsl.security_prefs");
563 	/* if secPrefsIni has the same value as secPrefsValue, all is fine */
564 	if (secPrefsIni != secPrefsValue) {
565 		if (secPrefsIni != XSL_SECPREF_DEFAULT) {
566 			/* if the ini value is not set to the default, throw an E_DEPRECATED warning */
567 			php_error_docref(NULL TSRMLS_CC, E_DEPRECATED, "The xsl.security_prefs php.ini option is deprecated; use XsltProcessor->setSecurityPrefs() instead");
568 			if (intern->securityPrefsSet == 0) {
569 				/* if securityPrefs were not set through the setSecurityPrefs method, take the ini setting */
570 				secPrefsValue = secPrefsIni;
571 			} else {
572 				/* else throw a notice, that the ini setting was not used */
573 				php_error_docref(NULL TSRMLS_CC, E_NOTICE, "The xsl.security_prefs php.ini was not used, since the  XsltProcessor->setSecurityPrefs() method was used");
574 			}
575 		}
576 	}
577 
578 	/* if securityPrefs is set to NONE, we don't have to do any checks, but otherwise... */
579 	if (secPrefsValue != XSL_SECPREF_NONE) {
580 		secPrefs = xsltNewSecurityPrefs();
581 		if (secPrefsValue & XSL_SECPREF_READ_FILE ) {
582 			if (0 != xsltSetSecurityPrefs(secPrefs, XSLT_SECPREF_READ_FILE, xsltSecurityForbid)) {
583 				secPrefsError = 1;
584 			}
585 		}
586 		if (secPrefsValue & XSL_SECPREF_WRITE_FILE ) {
587 			if (0 != xsltSetSecurityPrefs(secPrefs, XSLT_SECPREF_WRITE_FILE, xsltSecurityForbid)) {
588 				secPrefsError = 1;
589 			}
590 		}
591 		if (secPrefsValue & XSL_SECPREF_CREATE_DIRECTORY ) {
592 			if (0 != xsltSetSecurityPrefs(secPrefs, XSLT_SECPREF_CREATE_DIRECTORY, xsltSecurityForbid)) {
593 				secPrefsError = 1;
594 			}
595 		}
596 		if (secPrefsValue & XSL_SECPREF_READ_NETWORK) {
597 			if (0 != xsltSetSecurityPrefs(secPrefs, XSLT_SECPREF_READ_NETWORK, xsltSecurityForbid)) {
598 				secPrefsError = 1;
599 			}
600 		}
601 		if (secPrefsValue & XSL_SECPREF_WRITE_NETWORK) {
602 			if (0 != xsltSetSecurityPrefs(secPrefs, XSLT_SECPREF_WRITE_NETWORK, xsltSecurityForbid)) {
603 				secPrefsError = 1;
604 			}
605 		}
606 
607 		if (0 != xsltSetCtxtSecurityPrefs(secPrefs, ctxt)) {
608 			secPrefsError = 1;
609 		}
610 	}
611 
612 	if (secPrefsError == 1) {
613 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Can't set libxslt security properties, not doing transformation for security reasons");
614 	} else {
615 		newdocp = xsltApplyStylesheetUser(style, doc, (const char**) params,  NULL, f, ctxt);
616 	}
617 	if (f) {
618 		fclose(f);
619 	}
620 
621 	xsltFreeTransformContext(ctxt);
622 	if (secPrefs) {
623 		xsltFreeSecurityPrefs(secPrefs);
624 	}
625 
626 	if (intern->node_list != NULL) {
627 		zend_hash_destroy(intern->node_list);
628 		FREE_HASHTABLE(intern->node_list);
629 		intern->node_list = NULL;
630 	}
631 
632 	php_libxml_decrement_doc_ref(intern->doc TSRMLS_CC);
633 	efree(intern->doc);
634 	intern->doc = NULL;
635 
636 	if (params) {
637 		clone = 0;
638 		while(params[clone]) {
639 			efree(params[clone++]);
640 		}
641 		efree(params);
642 	}
643 
644 	return newdocp;
645 
646 }
647 /* }}} */
648 
649 /* {{{ proto domdocument xsl_xsltprocessor_transform_to_doc(domnode doc);
650 URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#
651 Since:
652 */
PHP_FUNCTION(xsl_xsltprocessor_transform_to_doc)653 PHP_FUNCTION(xsl_xsltprocessor_transform_to_doc)
654 {
655 	zval *id, *docp = NULL;
656 	xmlDoc *newdocp;
657 	xsltStylesheetPtr sheetp;
658 	int ret, ret_class_len=0;
659 	char *ret_class = NULL;
660 	xsl_object *intern;
661 
662 	id = getThis();
663 	intern = (xsl_object *)zend_object_store_get_object(id TSRMLS_CC);
664 	sheetp = (xsltStylesheetPtr) intern->ptr;
665 
666 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "o|s!", &docp, &ret_class, &ret_class_len) == FAILURE) {
667 		RETURN_FALSE;
668 	}
669 
670 	newdocp = php_xsl_apply_stylesheet(id, intern, sheetp, docp TSRMLS_CC);
671 
672 	if (newdocp) {
673 		if (ret_class) {
674 			int found;
675 			char *curclass_name;
676 			zend_class_entry *curce, **ce;
677 			php_libxml_node_object *interndoc;
678 
679 			curce = Z_OBJCE_P(docp);
680 			curclass_name = curce->name;
681 			while (curce->parent != NULL) {
682 				curce = curce->parent;
683 			}
684 
685 			found = zend_lookup_class(ret_class, ret_class_len, &ce TSRMLS_CC);
686 			if ((found != SUCCESS) || !instanceof_function(*ce, curce TSRMLS_CC)) {
687 				xmlFreeDoc(newdocp);
688 				php_error_docref(NULL TSRMLS_CC, E_WARNING,
689 					"Expecting class compatible with %s, '%s' given", curclass_name, ret_class);
690 				RETURN_FALSE;
691 			}
692 
693 			object_init_ex(return_value, *ce);
694 
695 			interndoc = (php_libxml_node_object *)zend_objects_get_address(return_value TSRMLS_CC);
696 			php_libxml_increment_doc_ref(interndoc, newdocp TSRMLS_CC);
697 			php_libxml_increment_node_ptr(interndoc, (xmlNodePtr)newdocp, (void *)interndoc TSRMLS_CC);
698 		} else {
699 			DOM_RET_OBJ((xmlNodePtr) newdocp, &ret, NULL);
700 		}
701 	} else {
702 		RETURN_FALSE;
703 	}
704 
705 }
706 /* }}} end xsl_xsltprocessor_transform_to_doc */
707 
708 /* {{{ proto int xsl_xsltprocessor_transform_to_uri(domdocument doc, string uri);
709 */
PHP_FUNCTION(xsl_xsltprocessor_transform_to_uri)710 PHP_FUNCTION(xsl_xsltprocessor_transform_to_uri)
711 {
712 	zval *id, *docp = NULL;
713 	xmlDoc *newdocp;
714 	xsltStylesheetPtr sheetp;
715 	int ret, uri_len;
716 	char *uri;
717 	xsl_object *intern;
718 
719 	id = getThis();
720 	intern = (xsl_object *)zend_object_store_get_object(id TSRMLS_CC);
721 	sheetp = (xsltStylesheetPtr) intern->ptr;
722 
723 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "op", &docp, &uri, &uri_len) == FAILURE) {
724 		RETURN_FALSE;
725 	}
726 
727 	newdocp = php_xsl_apply_stylesheet(id, intern, sheetp, docp TSRMLS_CC);
728 
729 	ret = -1;
730 	if (newdocp) {
731 		ret = xsltSaveResultToFilename(uri, newdocp, sheetp, 0);
732 		xmlFreeDoc(newdocp);
733 	}
734 
735 	RETVAL_LONG(ret);
736 }
737 /* }}} end xsl_xsltprocessor_transform_to_uri */
738 
739 /* {{{ proto string xsl_xsltprocessor_transform_to_xml(domdocument doc);
740 */
PHP_FUNCTION(xsl_xsltprocessor_transform_to_xml)741 PHP_FUNCTION(xsl_xsltprocessor_transform_to_xml)
742 {
743 	zval *id, *docp = NULL;
744 	xmlDoc *newdocp;
745 	xsltStylesheetPtr sheetp;
746 	int ret;
747 	xmlChar *doc_txt_ptr;
748 	int doc_txt_len;
749 	xsl_object *intern;
750 
751 	id = getThis();
752 	intern = (xsl_object *)zend_object_store_get_object(id TSRMLS_CC);
753 	sheetp = (xsltStylesheetPtr) intern->ptr;
754 
755 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "o", &docp) == FAILURE) {
756 		RETURN_FALSE;
757 	}
758 
759 	newdocp = php_xsl_apply_stylesheet(id, intern, sheetp, docp TSRMLS_CC);
760 
761 	ret = -1;
762 	if (newdocp) {
763 		ret = xsltSaveResultToString(&doc_txt_ptr, &doc_txt_len, newdocp, sheetp);
764 		if (doc_txt_ptr && doc_txt_len) {
765 			RETVAL_STRINGL(doc_txt_ptr, doc_txt_len, 1);
766 			xmlFree(doc_txt_ptr);
767 		}
768 		xmlFreeDoc(newdocp);
769 	}
770 
771 	if (ret < 0) {
772 		RETURN_FALSE;
773 	}
774 }
775 /* }}} end xsl_xsltprocessor_transform_to_xml */
776 
777 /* {{{ proto bool xsl_xsltprocessor_set_parameter(string namespace, mixed name [, string value]);
778 */
PHP_FUNCTION(xsl_xsltprocessor_set_parameter)779 PHP_FUNCTION(xsl_xsltprocessor_set_parameter)
780 {
781 
782 	zval *id;
783 	zval *array_value, **entry, *new_string;
784 	xsl_object *intern;
785 	char *string_key, *name, *value, *namespace;
786 	ulong idx;
787 	int string_key_len, namespace_len, name_len, value_len;
788 	DOM_GET_THIS(id);
789 
790 	if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "sa", &namespace, &namespace_len, &array_value) == SUCCESS) {
791 		intern = (xsl_object *)zend_object_store_get_object(id TSRMLS_CC);
792 		zend_hash_internal_pointer_reset(Z_ARRVAL_P(array_value));
793 
794 		while (zend_hash_get_current_data(Z_ARRVAL_P(array_value), (void **)&entry) == SUCCESS) {
795 			SEPARATE_ZVAL(entry);
796 			convert_to_string_ex(entry);
797 
798 			if (zend_hash_get_current_key_ex(Z_ARRVAL_P(array_value), &string_key, &string_key_len, &idx, 0, NULL) != HASH_KEY_IS_STRING) {
799 				php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid parameter array");
800 				RETURN_FALSE;
801 			}
802 
803 			ALLOC_ZVAL(new_string);
804 			Z_ADDREF_PP(entry);
805 			COPY_PZVAL_TO_ZVAL(*new_string, *entry);
806 
807 			zend_hash_update(intern->parameter, string_key, string_key_len, &new_string, sizeof(zval*), NULL);
808 			zend_hash_move_forward(Z_ARRVAL_P(array_value));
809 		}
810 		RETURN_TRUE;
811 
812 	} else if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "sss", &namespace, &namespace_len, &name, &name_len, &value, &value_len) == SUCCESS) {
813 
814 		intern = (xsl_object *)zend_object_store_get_object(id TSRMLS_CC);
815 
816 		MAKE_STD_ZVAL(new_string);
817 		ZVAL_STRING(new_string, value, 1);
818 
819 		zend_hash_update(intern->parameter, name, name_len + 1, &new_string, sizeof(zval*), NULL);
820 		RETURN_TRUE;
821 	} else {
822 		WRONG_PARAM_COUNT;
823 	}
824 
825 }
826 /* }}} end xsl_xsltprocessor_set_parameter */
827 
828 /* {{{ proto string xsl_xsltprocessor_get_parameter(string namespace, string name);
829 */
PHP_FUNCTION(xsl_xsltprocessor_get_parameter)830 PHP_FUNCTION(xsl_xsltprocessor_get_parameter)
831 {
832 	zval *id;
833 	int name_len = 0, namespace_len = 0;
834 	char *name, *namespace;
835 	zval **value;
836 	xsl_object *intern;
837 
838 	DOM_GET_THIS(id);
839 
840 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss", &namespace, &namespace_len, &name, &name_len) == FAILURE) {
841 		RETURN_FALSE;
842 	}
843 	intern = (xsl_object *)zend_object_store_get_object(id TSRMLS_CC);
844 	if ( zend_hash_find(intern->parameter, name, name_len + 1,  (void**) &value) == SUCCESS) {
845 		convert_to_string_ex(value);
846 		RETVAL_STRING(Z_STRVAL_PP(value),1);
847 	} else {
848 		RETURN_FALSE;
849 	}
850 }
851 /* }}} end xsl_xsltprocessor_get_parameter */
852 
853 /* {{{ proto bool xsl_xsltprocessor_remove_parameter(string namespace, string name);
854 */
PHP_FUNCTION(xsl_xsltprocessor_remove_parameter)855 PHP_FUNCTION(xsl_xsltprocessor_remove_parameter)
856 {
857 	zval *id;
858 	int name_len = 0, namespace_len = 0;
859 	char *name, *namespace;
860 	xsl_object *intern;
861 
862 	DOM_GET_THIS(id);
863 
864 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss", &namespace, &namespace_len, &name, &name_len) == FAILURE) {
865 		RETURN_FALSE;
866 	}
867 	intern = (xsl_object *)zend_object_store_get_object(id TSRMLS_CC);
868 	if ( zend_hash_del(intern->parameter, name, name_len + 1) == SUCCESS) {
869 		RETURN_TRUE;
870 	} else {
871 		RETURN_FALSE;
872 	}
873 }
874 /* }}} end xsl_xsltprocessor_remove_parameter */
875 
876 /* {{{ proto void xsl_xsltprocessor_register_php_functions([mixed $restrict]);
877 */
PHP_FUNCTION(xsl_xsltprocessor_register_php_functions)878 PHP_FUNCTION(xsl_xsltprocessor_register_php_functions)
879 {
880 	zval *id;
881 	xsl_object *intern;
882 	zval *array_value, **entry, *new_string;
883 	int  name_len = 0;
884 	char *name;
885 
886 	DOM_GET_THIS(id);
887 
888 	if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "a",  &array_value) == SUCCESS) {
889 		intern = (xsl_object *)zend_object_store_get_object(id TSRMLS_CC);
890 		zend_hash_internal_pointer_reset(Z_ARRVAL_P(array_value));
891 
892 		while (zend_hash_get_current_data(Z_ARRVAL_P(array_value), (void **)&entry) == SUCCESS) {
893 			SEPARATE_ZVAL(entry);
894 			convert_to_string_ex(entry);
895 
896 			MAKE_STD_ZVAL(new_string);
897 			ZVAL_LONG(new_string,1);
898 
899 			zend_hash_update(intern->registered_phpfunctions, Z_STRVAL_PP(entry), Z_STRLEN_PP(entry) + 1, &new_string, sizeof(zval*), NULL);
900 			zend_hash_move_forward(Z_ARRVAL_P(array_value));
901 		}
902 		intern->registerPhpFunctions = 2;
903 
904 	} else if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "s",  &name, &name_len) == SUCCESS) {
905 		intern = (xsl_object *)zend_object_store_get_object(id TSRMLS_CC);
906 
907 		MAKE_STD_ZVAL(new_string);
908 		ZVAL_LONG(new_string,1);
909 		zend_hash_update(intern->registered_phpfunctions, name, name_len + 1, &new_string, sizeof(zval*), NULL);
910 		intern->registerPhpFunctions = 2;
911 
912 	} else {
913 		intern = (xsl_object *)zend_object_store_get_object(id TSRMLS_CC);
914 		intern->registerPhpFunctions = 1;
915 	}
916 
917 }
918 /* }}} end xsl_xsltprocessor_register_php_functions(); */
919 
920 /* {{{ proto bool xsl_xsltprocessor_set_profiling(string filename) */
PHP_FUNCTION(xsl_xsltprocessor_set_profiling)921 PHP_FUNCTION(xsl_xsltprocessor_set_profiling)
922 {
923 	zval *id;
924 	xsl_object *intern;
925 	char *filename = NULL;
926 	int filename_len;
927 	DOM_GET_THIS(id);
928 
929 	if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "p!", &filename, &filename_len) == SUCCESS) {
930 		intern = (xsl_object *)zend_object_store_get_object(id TSRMLS_CC);
931 		if (intern->profiling) {
932 			efree(intern->profiling);
933 		}
934 		if (filename != NULL) {
935 			intern->profiling = estrndup(filename,filename_len);
936 		} else {
937 			intern->profiling = NULL;
938 		}
939 		RETURN_TRUE;
940 	} else {
941 		WRONG_PARAM_COUNT;
942 	}
943 }
944 /* }}} end xsl_xsltprocessor_set_profiling */
945 
946 /* {{{ proto long xsl_xsltprocessor_set_security_prefs(long securityPrefs) */
PHP_FUNCTION(xsl_xsltprocessor_set_security_prefs)947 PHP_FUNCTION(xsl_xsltprocessor_set_security_prefs)
948 {
949 	zval *id;
950 	xsl_object *intern;
951 	long securityPrefs, oldSecurityPrefs;
952 
953 	DOM_GET_THIS(id);
954  	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &securityPrefs) == FAILURE) {
955 		return;
956 	}
957 	intern = (xsl_object *)zend_object_store_get_object(id TSRMLS_CC);
958 	oldSecurityPrefs = intern->securityPrefs;
959 	intern->securityPrefs = securityPrefs;
960 	/* set this to 1 so that we know, it was set through this method. Can be removed, when we remove the ini setting */
961 	intern->securityPrefsSet = 1;
962 	RETURN_LONG(oldSecurityPrefs);
963 }
964 /* }}} end xsl_xsltprocessor_set_security_prefs */
965 
966 /* {{{ proto long xsl_xsltprocessor_get_security_prefs() */
PHP_FUNCTION(xsl_xsltprocessor_get_security_prefs)967 PHP_FUNCTION(xsl_xsltprocessor_get_security_prefs)
968 {
969 	zval *id;
970 	xsl_object *intern;
971 
972 	DOM_GET_THIS(id);
973 	if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "") == SUCCESS) {
974 		intern = (xsl_object *)zend_object_store_get_object(id TSRMLS_CC);
975 		RETURN_LONG(intern->securityPrefs);
976 	} else {
977 		WRONG_PARAM_COUNT;
978 	}
979 }
980 /* }}} end xsl_xsltprocessor_get_security_prefs */
981 
982 
983 
984 /* {{{ proto bool xsl_xsltprocessor_has_exslt_support();
985 */
PHP_FUNCTION(xsl_xsltprocessor_has_exslt_support)986 PHP_FUNCTION(xsl_xsltprocessor_has_exslt_support)
987 {
988 #if HAVE_XSL_EXSLT
989 	RETURN_TRUE;
990 #else
991 	RETURN_FALSE;
992 #endif
993 }
994 /* }}} end xsl_xsltprocessor_has_exslt_support(); */
995 
996 /*
997  * Local variables:
998  * tab-width: 4
999  * c-basic-offset: 4
1000  * End:
1001  * vim600: sw=4 ts=4 fdm=marker
1002  * vim<600: sw=4 ts=4
1003  */
1004