xref: /PHP-8.3/ext/xsl/xsltprocessor.c (revision e2d97314)
1 /*
2    +----------------------------------------------------------------------+
3    | Copyright (c) The PHP Group                                          |
4    +----------------------------------------------------------------------+
5    | This source file is subject to version 3.01 of the PHP license,      |
6    | that is bundled with this package in the file LICENSE, and is        |
7    | available through the world-wide-web at the following url:           |
8    | https://www.php.net/license/3_01.txt                                 |
9    | If you did not receive a copy of the PHP license and are unable to   |
10    | obtain it through the world-wide-web, please send a note to          |
11    | license@php.net so we can mail you a copy immediately.               |
12    +----------------------------------------------------------------------+
13    | Authors: Christian Stocker <chregu@php.net>                          |
14    |          Rob Richards <rrichards@php.net>                            |
15    +----------------------------------------------------------------------+
16 */
17 
18 #ifdef HAVE_CONFIG_H
19 #include "config.h"
20 #endif
21 
22 #include "php.h"
23 #include "php_xsl.h"
24 #include "ext/libxml/php_libxml.h"
25 
26 /* {{{ php_xsl_xslt_string_to_xpathexpr()
27    Translates a string to a XPath Expression */
php_xsl_xslt_string_to_xpathexpr(const char * str)28 static char *php_xsl_xslt_string_to_xpathexpr(const char *str)
29 {
30 	const xmlChar *string = (const xmlChar *)str;
31 
32 	xmlChar *value;
33 	int str_len;
34 
35 	str_len = xmlStrlen(string) + 3;
36 
37 	if (xmlStrchr(string, '"')) {
38 		if (xmlStrchr(string, '\'')) {
39 			php_error_docref(NULL, E_WARNING, "Cannot create XPath expression (string contains both quote and double-quotes)");
40 			return NULL;
41 		}
42 		value = (xmlChar*) safe_emalloc (str_len, sizeof(xmlChar), 0);
43 		snprintf((char*)value, str_len, "'%s'", string);
44 	} else {
45 		value = (xmlChar*) safe_emalloc (str_len, sizeof(xmlChar), 0);
46 		snprintf((char *)value, str_len, "\"%s\"", string);
47 	}
48 	return (char *) value;
49 }
50 /* }}} */
51 
52 /* {{{ php_xsl_xslt_make_params()
53    Translates a PHP array to a libxslt parameters array */
php_xsl_xslt_make_params(HashTable * parht,int xpath_params)54 static char **php_xsl_xslt_make_params(HashTable *parht, int xpath_params)
55 {
56 
57 	int parsize;
58 	zval *value;
59 	char *xpath_expr;
60 	zend_string *string_key;
61 	char **params = NULL;
62 	int i = 0;
63 
64 	parsize = (2 * zend_hash_num_elements(parht) + 1) * sizeof(char *);
65 	params = (char **)safe_emalloc((2 * zend_hash_num_elements(parht) + 1), sizeof(char *), 0);
66 	memset((char *)params, 0, parsize);
67 
68 	ZEND_HASH_MAP_FOREACH_STR_KEY_VAL(parht, string_key, value) {
69 		ZEND_ASSERT(string_key != NULL);
70 		if (Z_TYPE_P(value) != IS_STRING) {
71 			if (!try_convert_to_string(value)) {
72 				efree(params);
73 				return NULL;
74 			}
75 		}
76 
77 		if (!xpath_params) {
78 			xpath_expr = php_xsl_xslt_string_to_xpathexpr(Z_STRVAL_P(value));
79 		} else {
80 			xpath_expr = estrndup(Z_STRVAL_P(value), Z_STRLEN_P(value));
81 		}
82 		if (xpath_expr) {
83 			params[i++] = estrndup(ZSTR_VAL(string_key), ZSTR_LEN(string_key));
84 			params[i++] = xpath_expr;
85 		}
86 	} ZEND_HASH_FOREACH_END();
87 
88 	params[i++] = NULL;
89 
90 	return params;
91 }
92 /* }}} */
93 
xsl_ext_function_php(xmlXPathParserContextPtr ctxt,int nargs,int type)94 static void xsl_ext_function_php(xmlXPathParserContextPtr ctxt, int nargs, int type) /* {{{ */
95 {
96 	xsltTransformContextPtr tctxt;
97 	zval *args = NULL;
98 	zval retval;
99 	int i;
100 	int error = 0;
101 	zend_fcall_info fci;
102 	zval handler;
103 	xmlXPathObjectPtr obj;
104 	char *str;
105 	xsl_object *intern;
106 	zend_string *callable = NULL;
107 
108 
109 	if (! zend_is_executing()) {
110 		xsltGenericError(xsltGenericErrorContext,
111 		"xsltExtFunctionTest: Function called from outside of PHP\n");
112 		error = 1;
113 	} else {
114 		tctxt = xsltXPathGetTransformContext(ctxt);
115 		if (tctxt == NULL) {
116 			xsltGenericError(xsltGenericErrorContext,
117 			"xsltExtFunctionTest: failed to get the transformation context\n");
118 			error = 1;
119 		} else {
120 			intern = (xsl_object*)tctxt->_private;
121 			if (intern == NULL) {
122 				xsltGenericError(xsltGenericErrorContext,
123 				"xsltExtFunctionTest: failed to get the internal object\n");
124 				error = 1;
125 			}
126 			else if (intern->registerPhpFunctions == 0) {
127 				xsltGenericError(xsltGenericErrorContext,
128 				"xsltExtFunctionTest: PHP Object did not register PHP functions\n");
129 				error = 1;
130 			}
131 		}
132 	}
133 
134 	if (error == 1) {
135 		for (i = nargs - 1; i >= 0; i--) {
136 			obj = valuePop(ctxt);
137 			if (obj) {
138 				xmlXPathFreeObject(obj);
139 			}
140 		}
141 		return;
142 	}
143 
144 	if (UNEXPECTED(nargs == 0)) {
145 		zend_throw_error(NULL, "Function name must be passed as the first argument");
146 		return;
147 	}
148 
149 	fci.param_count = nargs - 1;
150 	if (fci.param_count > 0) {
151 		args = safe_emalloc(fci.param_count, sizeof(zval), 0);
152 	}
153 	/* Reverse order to pop values off ctxt stack */
154 	for (i = fci.param_count - 1; i >= 0; i--) {
155 		obj = valuePop(ctxt);
156 		if (obj == NULL) {
157 			ZVAL_NULL(&args[i]);
158 			continue;
159 		}
160 		switch (obj->type) {
161 			case XPATH_STRING:
162 				ZVAL_STRING(&args[i], (char *)obj->stringval);
163 				break;
164 			case XPATH_BOOLEAN:
165 				ZVAL_BOOL(&args[i],  obj->boolval);
166 				break;
167 			case XPATH_NUMBER:
168 				ZVAL_DOUBLE(&args[i], obj->floatval);
169 				break;
170 			case XPATH_NODESET:
171 				if (type == 1) {
172 					str = (char*)xmlXPathCastToString(obj);
173 					ZVAL_STRING(&args[i], str);
174 					xmlFree(str);
175 				} else if (type == 2) {
176 					int j;
177 					dom_object *domintern = (dom_object *)intern->doc;
178 					if (obj->nodesetval && obj->nodesetval->nodeNr > 0) {
179 						array_init(&args[i]);
180 						for (j = 0; j < obj->nodesetval->nodeNr; j++) {
181 							xmlNodePtr node = obj->nodesetval->nodeTab[j];
182 							zval child;
183 							/* not sure, if we need this... it's copied from xpath.c */
184 							if (node->type == XML_NAMESPACE_DECL) {
185 								xmlNsPtr curns;
186 								xmlNodePtr nsparent;
187 
188 								nsparent = node->_private;
189 								curns = xmlNewNs(NULL, node->name, NULL);
190 								if (node->children) {
191 									curns->prefix = xmlStrdup((xmlChar *)node->children);
192 								}
193 								if (node->children) {
194 									node = xmlNewDocNode(node->doc, NULL, (xmlChar *) node->children, node->name);
195 								} else {
196 									node = xmlNewDocNode(node->doc, NULL, (const xmlChar *) "xmlns", node->name);
197 								}
198 								node->type = XML_NAMESPACE_DECL;
199 								node->parent = nsparent;
200 								node->ns = curns;
201 							} else {
202 								/**
203 								 * Upon freeing libxslt's context, every document which is not the *main* document will be freed by libxslt.
204 								 * If a node of a document which is *not the main* document gets returned to userland, we'd free the node twice:
205 								 * first by the cleanup of the xslt context, and then by our own refcounting mechanism.
206 								 * To prevent this, we'll take a copy if the node is not from the main document.
207 								 * It is important that we do not copy the node unconditionally, because that means that:
208 								 *  - modifications to the node will only modify the copy, and not the original
209 								 *  - accesses to the parent, path, ... will not work
210 								 */
211 								xsltTransformContextPtr transform_ctxt = (xsltTransformContextPtr) ctxt->context->extra;
212 								if (node->doc != transform_ctxt->document->doc) {
213 									node = xmlDocCopyNode(node, domintern->document->ptr, 1);
214 								}
215 							}
216 
217 							php_dom_create_object(node, &child, domintern);
218 							add_next_index_zval(&args[i], &child);
219 						}
220 					} else {
221 						ZVAL_EMPTY_ARRAY(&args[i]);
222 					}
223 				}
224 				break;
225 			default:
226 				str = (char *) xmlXPathCastToString(obj);
227 				ZVAL_STRING(&args[i], str);
228 				xmlFree(str);
229 		}
230 		xmlXPathFreeObject(obj);
231 	}
232 
233 	fci.size = sizeof(fci);
234 	fci.named_params = NULL;
235 	if (fci.param_count > 0) {
236 		fci.params = args;
237 	} else {
238 		fci.params = NULL;
239 	}
240 
241 	/* Last element of the stack is the function name */
242 	obj = valuePop(ctxt);
243 	if (obj == NULL || obj->stringval == NULL) {
244 		php_error_docref(NULL, E_WARNING, "Handler name must be a string");
245 		xmlXPathFreeObject(obj);
246 		valuePush(ctxt, xmlXPathNewString((const xmlChar *) ""));
247 		if (fci.param_count > 0) {
248 			for (i = 0; i < nargs - 1; i++) {
249 				zval_ptr_dtor(&args[i]);
250 			}
251 			efree(args);
252 		}
253 		return;
254 	}
255 	ZVAL_STRING(&handler, (char *) obj->stringval);
256 	xmlXPathFreeObject(obj);
257 
258 	ZVAL_COPY_VALUE(&fci.function_name, &handler);
259 	fci.object = NULL;
260 	fci.retval = &retval;
261 	if (!zend_make_callable(&handler, &callable)) {
262 		if (!EG(exception)) {
263 			php_error_docref(NULL, E_WARNING, "Unable to call handler %s()", ZSTR_VAL(callable));
264 		}
265 		valuePush(ctxt, xmlXPathNewString((const xmlChar *) ""));
266 	} else if ( intern->registerPhpFunctions == 2 && zend_hash_exists(intern->registered_phpfunctions, callable) == 0) {
267 		php_error_docref(NULL, E_WARNING, "Not allowed to call handler '%s()'", ZSTR_VAL(callable));
268 		/* Push an empty string, so that we at least have an xslt result... */
269 		valuePush(ctxt, xmlXPathNewString((const xmlChar *) ""));
270 	} else {
271 		zend_call_function(&fci, NULL);
272 		if (Z_ISUNDEF(retval)) {
273 			/* Exception thrown, don't do anything further. */
274 		} else if (Z_TYPE(retval) == IS_OBJECT && instanceof_function(Z_OBJCE(retval), dom_node_class_entry)) {
275 			xmlNode *nodep;
276 			dom_object *obj;
277 			if (intern->node_list == NULL) {
278 				intern->node_list = zend_new_array(0);
279 			}
280 			Z_ADDREF(retval);
281 			zend_hash_next_index_insert(intern->node_list, &retval);
282 			obj = Z_DOMOBJ_P(&retval);
283 			nodep = dom_object_get_node(obj);
284 			valuePush(ctxt, xmlXPathNewNodeSet(nodep));
285 		} else if (Z_TYPE(retval) == IS_TRUE || Z_TYPE(retval) == IS_FALSE) {
286 			valuePush(ctxt, xmlXPathNewBoolean(Z_TYPE(retval) == IS_TRUE));
287 		} else if (Z_TYPE(retval) == IS_OBJECT) {
288 			php_error_docref(NULL, E_WARNING, "A PHP Object cannot be converted to a XPath-string");
289 			valuePush(ctxt, xmlXPathNewString((const xmlChar *) ""));
290 		} else {
291 			convert_to_string(&retval);
292 			valuePush(ctxt, xmlXPathNewString((xmlChar *) Z_STRVAL(retval)));
293 		}
294 		zval_ptr_dtor(&retval);
295 	}
296 	zend_string_release_ex(callable, 0);
297 	zval_ptr_dtor_nogc(&handler);
298 	if (fci.param_count > 0) {
299 		for (i = 0; i < nargs - 1; i++) {
300 			zval_ptr_dtor(&args[i]);
301 		}
302 		efree(args);
303 	}
304 }
305 /* }}} */
306 
xsl_ext_function_string_php(xmlXPathParserContextPtr ctxt,int nargs)307 void xsl_ext_function_string_php(xmlXPathParserContextPtr ctxt, int nargs) /* {{{ */
308 {
309 	xsl_ext_function_php(ctxt, nargs, 1);
310 }
311 /* }}} */
312 
xsl_ext_function_object_php(xmlXPathParserContextPtr ctxt,int nargs)313 void xsl_ext_function_object_php(xmlXPathParserContextPtr ctxt, int nargs) /* {{{ */
314 {
315 	xsl_ext_function_php(ctxt, nargs, 2);
316 }
317 /* }}} */
318 
319 /* {{{ URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#
320 Since:
321 */
PHP_METHOD(XSLTProcessor,importStylesheet)322 PHP_METHOD(XSLTProcessor, importStylesheet)
323 {
324 	zval *id, *docp = NULL;
325 	xmlDoc *doc = NULL, *newdoc = NULL;
326 	xsltStylesheetPtr sheetp, oldsheetp;
327 	xsl_object *intern;
328 	int clone_docu = 0;
329 	xmlNode *nodep = NULL;
330 	zval *cloneDocu, rv;
331 	zend_string *member;
332 
333 	id = ZEND_THIS;
334 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "o", &docp) == FAILURE) {
335 		RETURN_THROWS();
336 	}
337 
338 	nodep = php_libxml_import_node(docp);
339 
340 	if (nodep) {
341 		doc = nodep->doc;
342 	}
343 	if (doc == NULL) {
344 		zend_argument_value_error(1, "must be a valid XML node");
345 		RETURN_THROWS();
346 	}
347 
348 	/* libxslt uses _private, so we must copy the imported
349 	stylesheet document otherwise the node proxies will be a mess */
350 	newdoc = xmlCopyDoc(doc, 1);
351 	xmlNodeSetBase((xmlNodePtr) newdoc, (xmlChar *)doc->URL);
352 	PHP_LIBXML_SANITIZE_GLOBALS(parse);
353 	PHP_LIBXML_IGNORE_DEPRECATIONS_START
354 	xmlSubstituteEntitiesDefault(1);
355 	xmlLoadExtDtdDefaultValue = XML_DETECT_IDS | XML_COMPLETE_ATTRS;
356 	PHP_LIBXML_IGNORE_DEPRECATIONS_END
357 
358 	sheetp = xsltParseStylesheetDoc(newdoc);
359 	PHP_LIBXML_RESTORE_GLOBALS(parse);
360 
361 	if (!sheetp) {
362 		xmlFreeDoc(newdoc);
363 		RETURN_FALSE;
364 	}
365 
366 	intern = Z_XSL_P(id);
367 
368 	member = ZSTR_INIT_LITERAL("cloneDocument", 0);
369 	cloneDocu = zend_std_read_property(Z_OBJ_P(id), member, BP_VAR_IS, NULL, &rv);
370 	if (Z_TYPE_P(cloneDocu) != IS_NULL) {
371 		convert_to_long(cloneDocu);
372 		clone_docu = Z_LVAL_P(cloneDocu);
373 	}
374 	zend_string_release_ex(member, 0);
375 	if (clone_docu == 0) {
376 		/* check if the stylesheet is using xsl:key, if yes, we have to clone the document _always_ before a transformation */
377 		nodep = xmlDocGetRootElement(sheetp->doc);
378 		if (nodep && (nodep = nodep->children)) {
379 			while (nodep) {
380 				if (nodep->type == XML_ELEMENT_NODE && xmlStrEqual(nodep->name, (const xmlChar *) "key") && xmlStrEqual(nodep->ns->href, XSLT_NAMESPACE)) {
381 					intern->hasKeys = 1;
382 					break;
383 				}
384 				nodep = nodep->next;
385 			}
386 		}
387 	} else {
388 		intern->hasKeys = clone_docu;
389 	}
390 
391 	if ((oldsheetp = (xsltStylesheetPtr)intern->ptr)) {
392 		/* free wrapper */
393 		if (((xsltStylesheetPtr) intern->ptr)->_private != NULL) {
394 			((xsltStylesheetPtr) intern->ptr)->_private = NULL;
395 		}
396 		xsltFreeStylesheet((xsltStylesheetPtr) intern->ptr);
397 		intern->ptr = NULL;
398 	}
399 
400 	php_xsl_set_object(id, sheetp);
401 	RETVAL_TRUE;
402 }
403 /* }}} end XSLTProcessor::importStylesheet */
404 
php_xsl_apply_stylesheet(zval * id,xsl_object * intern,xsltStylesheetPtr style,zval * docp)405 static xmlDocPtr php_xsl_apply_stylesheet(zval *id, xsl_object *intern, xsltStylesheetPtr style, zval *docp) /* {{{ */
406 {
407 	xmlDocPtr newdocp = NULL;
408 	xmlDocPtr doc = NULL;
409 	xmlNodePtr node = NULL;
410 	xsltTransformContextPtr ctxt;
411 	php_libxml_node_object *object;
412 	char **params = NULL;
413 	int clone;
414 	zval *doXInclude, rv;
415 	zend_string *member;
416 	FILE *f;
417 	int secPrefsError = 0;
418 	int secPrefsValue;
419 	xsltSecurityPrefsPtr secPrefs = NULL;
420 
421 	node = php_libxml_import_node(docp);
422 
423 	if (node) {
424 		doc = node->doc;
425 	}
426 
427 	if (doc == NULL) {
428 		zend_argument_value_error(1, "must be a valid XML node");
429 		return NULL;
430 	}
431 
432 	if (style == NULL) {
433 		zend_string *name = get_active_function_or_method_name();
434 		zend_throw_error(NULL, "%s() can only be called after a stylesheet has been imported",
435 			ZSTR_VAL(name));
436 		zend_string_release(name);
437 		return NULL;
438 	}
439 
440 	if (intern->profiling) {
441 		if (php_check_open_basedir(intern->profiling)) {
442 			f = NULL;
443 		} else {
444 			f = VCWD_FOPEN(intern->profiling, "w");
445 		}
446 	} else {
447 		f = NULL;
448 	}
449 
450 	if (intern->parameter) {
451 		params = php_xsl_xslt_make_params(intern->parameter, 0);
452 	}
453 
454 	intern->doc = emalloc(sizeof(php_libxml_node_object));
455 	memset(intern->doc, 0, sizeof(php_libxml_node_object));
456 
457 	if (intern->hasKeys == 1) {
458 		doc = xmlCopyDoc(doc, 1);
459 	} else {
460 		object = Z_LIBXML_NODE_P(docp);
461 		intern->doc->document = object->document;
462 	}
463 
464 	php_libxml_increment_doc_ref(intern->doc, doc);
465 
466 	ctxt = xsltNewTransformContext(style, doc);
467 	ctxt->_private = (void *) intern;
468 
469 	member = ZSTR_INIT_LITERAL("doXInclude", 0);
470 	doXInclude = zend_std_read_property(Z_OBJ_P(id), member, BP_VAR_IS, NULL, &rv);
471 	if (Z_TYPE_P(doXInclude) != IS_NULL) {
472 		convert_to_long(doXInclude);
473 		ctxt->xinclude = Z_LVAL_P(doXInclude);
474 	}
475 	zend_string_release_ex(member, 0);
476 
477 	secPrefsValue = intern->securityPrefs;
478 
479 	/* if securityPrefs is set to NONE, we don't have to do any checks, but otherwise... */
480 	if (secPrefsValue != XSL_SECPREF_NONE) {
481 		secPrefs = xsltNewSecurityPrefs();
482 		if (secPrefsValue & XSL_SECPREF_READ_FILE ) {
483 			if (0 != xsltSetSecurityPrefs(secPrefs, XSLT_SECPREF_READ_FILE, xsltSecurityForbid)) {
484 				secPrefsError = 1;
485 			}
486 		}
487 		if (secPrefsValue & XSL_SECPREF_WRITE_FILE ) {
488 			if (0 != xsltSetSecurityPrefs(secPrefs, XSLT_SECPREF_WRITE_FILE, xsltSecurityForbid)) {
489 				secPrefsError = 1;
490 			}
491 		}
492 		if (secPrefsValue & XSL_SECPREF_CREATE_DIRECTORY ) {
493 			if (0 != xsltSetSecurityPrefs(secPrefs, XSLT_SECPREF_CREATE_DIRECTORY, xsltSecurityForbid)) {
494 				secPrefsError = 1;
495 			}
496 		}
497 		if (secPrefsValue & XSL_SECPREF_READ_NETWORK) {
498 			if (0 != xsltSetSecurityPrefs(secPrefs, XSLT_SECPREF_READ_NETWORK, xsltSecurityForbid)) {
499 				secPrefsError = 1;
500 			}
501 		}
502 		if (secPrefsValue & XSL_SECPREF_WRITE_NETWORK) {
503 			if (0 != xsltSetSecurityPrefs(secPrefs, XSLT_SECPREF_WRITE_NETWORK, xsltSecurityForbid)) {
504 				secPrefsError = 1;
505 			}
506 		}
507 
508 		if (0 != xsltSetCtxtSecurityPrefs(secPrefs, ctxt)) {
509 			secPrefsError = 1;
510 		}
511 	}
512 
513 	if (secPrefsError == 1) {
514 		php_error_docref(NULL, E_WARNING, "Can't set libxslt security properties, not doing transformation for security reasons");
515 	} else {
516 		newdocp = xsltApplyStylesheetUser(style, doc, (const char**) params,  NULL, f, ctxt);
517 	}
518 	if (f) {
519 		fclose(f);
520 	}
521 
522 	xsltFreeTransformContext(ctxt);
523 	if (secPrefs) {
524 		xsltFreeSecurityPrefs(secPrefs);
525 	}
526 
527 	if (intern->node_list != NULL) {
528 		zend_hash_destroy(intern->node_list);
529 		FREE_HASHTABLE(intern->node_list);
530 		intern->node_list = NULL;
531 	}
532 
533 	php_libxml_decrement_doc_ref(intern->doc);
534 	efree(intern->doc);
535 	intern->doc = NULL;
536 
537 	if (params) {
538 		clone = 0;
539 		while(params[clone]) {
540 			efree(params[clone++]);
541 		}
542 		efree(params);
543 	}
544 
545 	return newdocp;
546 
547 }
548 /* }}} */
549 
550 /* {{{ URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#
551 Since:
552 */
PHP_METHOD(XSLTProcessor,transformToDoc)553 PHP_METHOD(XSLTProcessor, transformToDoc)
554 {
555 	zval *id, *docp = NULL;
556 	xmlDoc *newdocp;
557 	xsltStylesheetPtr sheetp;
558 	zend_string *ret_class = NULL;
559 	xsl_object *intern;
560 
561 	id = ZEND_THIS;
562 	intern = Z_XSL_P(id);
563 	sheetp = (xsltStylesheetPtr) intern->ptr;
564 
565 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "o|S!", &docp, &ret_class) == FAILURE) {
566 		RETURN_THROWS();
567 	}
568 
569 	newdocp = php_xsl_apply_stylesheet(id, intern, sheetp, docp);
570 
571 	if (newdocp) {
572 		if (ret_class) {
573 			zend_string *curclass_name;
574 			zend_class_entry *curce, *ce;
575 			php_libxml_node_object *interndoc;
576 
577 			curce = Z_OBJCE_P(docp);
578 			curclass_name = curce->name;
579 			while (curce->parent != NULL) {
580 				curce = curce->parent;
581 			}
582 
583 			ce = zend_lookup_class(ret_class);
584 			if (ce == NULL || !instanceof_function(ce, curce)) {
585 				xmlFreeDoc(newdocp);
586 				zend_argument_type_error(2, "must be a class name compatible with %s, \"%s\" given",
587 					ZSTR_VAL(curclass_name), ZSTR_VAL(ret_class)
588 				);
589 				RETURN_THROWS();
590 			}
591 
592 			object_init_ex(return_value, ce);
593 
594 			interndoc = Z_LIBXML_NODE_P(return_value);
595 			php_libxml_increment_doc_ref(interndoc, newdocp);
596 			php_libxml_increment_node_ptr(interndoc, (xmlNodePtr)newdocp, (void *)interndoc);
597 		} else {
598 			php_dom_create_object((xmlNodePtr) newdocp, return_value, NULL);
599 		}
600 	} else {
601 		RETURN_FALSE;
602 	}
603 
604 }
605 /* }}} end XSLTProcessor::transformToDoc */
606 
607 /* {{{ */
PHP_METHOD(XSLTProcessor,transformToUri)608 PHP_METHOD(XSLTProcessor, transformToUri)
609 {
610 	zval *id, *docp = NULL;
611 	xmlDoc *newdocp;
612 	xsltStylesheetPtr sheetp;
613 	int ret;
614 	size_t uri_len;
615 	char *uri;
616 	xsl_object *intern;
617 
618 	id = ZEND_THIS;
619 	intern = Z_XSL_P(id);
620 	sheetp = (xsltStylesheetPtr) intern->ptr;
621 
622 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "op", &docp, &uri, &uri_len) == FAILURE) {
623 		RETURN_THROWS();
624 	}
625 
626 	newdocp = php_xsl_apply_stylesheet(id, intern, sheetp, docp);
627 
628 	ret = -1;
629 	if (newdocp) {
630 		ret = xsltSaveResultToFilename(uri, newdocp, sheetp, 0);
631 		xmlFreeDoc(newdocp);
632 	}
633 
634 	RETVAL_LONG(ret);
635 }
636 /* }}} end XSLTProcessor::transformToUri */
637 
638 /* {{{ */
PHP_METHOD(XSLTProcessor,transformToXml)639 PHP_METHOD(XSLTProcessor, transformToXml)
640 {
641 	zval *id, *docp = NULL;
642 	xmlDoc *newdocp;
643 	xsltStylesheetPtr sheetp;
644 	int ret;
645 	xmlChar *doc_txt_ptr;
646 	int doc_txt_len;
647 	xsl_object *intern;
648 
649 	id = ZEND_THIS;
650 	intern = Z_XSL_P(id);
651 	sheetp = (xsltStylesheetPtr) intern->ptr;
652 
653 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "o", &docp) == FAILURE) {
654 		RETURN_THROWS();
655 	}
656 
657 	newdocp = php_xsl_apply_stylesheet(id, intern, sheetp, docp);
658 
659 	ret = -1;
660 	if (newdocp) {
661 		ret = xsltSaveResultToString(&doc_txt_ptr, &doc_txt_len, newdocp, sheetp);
662 		if (doc_txt_ptr && doc_txt_len) {
663 			RETVAL_STRINGL((char *) doc_txt_ptr, doc_txt_len);
664 			xmlFree(doc_txt_ptr);
665 		}
666 		xmlFreeDoc(newdocp);
667 	}
668 
669 	if (ret < 0) {
670 		RETURN_FALSE;
671 	}
672 }
673 /* }}} end XSLTProcessor::transformToXml */
674 
675 /* {{{ */
PHP_METHOD(XSLTProcessor,setParameter)676 PHP_METHOD(XSLTProcessor, setParameter)
677 {
678 
679 	zval *id = ZEND_THIS;
680 	zval *entry, new_string;
681 	HashTable *array_value;
682 	xsl_object *intern;
683 	char *namespace;
684 	size_t namespace_len;
685 	zend_string *string_key, *name, *value = NULL;
686 
687 	ZEND_PARSE_PARAMETERS_START(2, 3)
688 		Z_PARAM_STRING(namespace, namespace_len)
689 		Z_PARAM_ARRAY_HT_OR_STR(array_value, name)
690 		Z_PARAM_OPTIONAL
691 		Z_PARAM_STR_OR_NULL(value)
692 	ZEND_PARSE_PARAMETERS_END();
693 
694 	intern = Z_XSL_P(id);
695 
696 	if (array_value) {
697 		if (value) {
698 			zend_argument_value_error(3, "must be null when argument #2 ($name) is an array");
699 			RETURN_THROWS();
700 		}
701 
702 		ZEND_HASH_FOREACH_STR_KEY_VAL(array_value, string_key, entry) {
703 			zval tmp;
704 			zend_string *str;
705 
706 			if (string_key == NULL) {
707 				zend_argument_type_error(2, "must contain only string keys");
708 				RETURN_THROWS();
709 			}
710 			str = zval_try_get_string(entry);
711 			if (UNEXPECTED(!str)) {
712 				RETURN_THROWS();
713 			}
714 			ZVAL_STR(&tmp, str);
715 			zend_hash_update(intern->parameter, string_key, &tmp);
716 		} ZEND_HASH_FOREACH_END();
717 		RETURN_TRUE;
718 	} else {
719 		if (!value) {
720 			zend_argument_value_error(3, "cannot be null when argument #2 ($name) is a string");
721 			RETURN_THROWS();
722 		}
723 
724 		ZVAL_STR_COPY(&new_string, value);
725 
726 		zend_hash_update(intern->parameter, name, &new_string);
727 		RETURN_TRUE;
728 	}
729 }
730 /* }}} end XSLTProcessor::setParameter */
731 
732 /* {{{ */
PHP_METHOD(XSLTProcessor,getParameter)733 PHP_METHOD(XSLTProcessor, getParameter)
734 {
735 	zval *id = ZEND_THIS;
736 	char *namespace;
737 	size_t namespace_len = 0;
738 	zval *value;
739 	zend_string *name;
740 	xsl_object *intern;
741 
742 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "sS", &namespace, &namespace_len, &name) == FAILURE) {
743 		RETURN_THROWS();
744 	}
745 	intern = Z_XSL_P(id);
746 	if ((value = zend_hash_find(intern->parameter, name)) != NULL) {
747 		RETURN_STR(zval_get_string(value));
748 	} else {
749 		RETURN_FALSE;
750 	}
751 }
752 /* }}} end XSLTProcessor::getParameter */
753 
754 /* {{{ */
PHP_METHOD(XSLTProcessor,removeParameter)755 PHP_METHOD(XSLTProcessor, removeParameter)
756 {
757 	zval *id = ZEND_THIS;
758 	size_t namespace_len = 0;
759 	char *namespace;
760 	zend_string *name;
761 	xsl_object *intern;
762 
763 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "sS", &namespace, &namespace_len, &name) == FAILURE) {
764 		RETURN_THROWS();
765 	}
766 	intern = Z_XSL_P(id);
767 	if (zend_hash_del(intern->parameter, name) == SUCCESS) {
768 		RETURN_TRUE;
769 	} else {
770 		RETURN_FALSE;
771 	}
772 }
773 /* }}} end XSLTProcessor::removeParameter */
774 
775 /* {{{ */
PHP_METHOD(XSLTProcessor,registerPHPFunctions)776 PHP_METHOD(XSLTProcessor, registerPHPFunctions)
777 {
778 	zval *id = ZEND_THIS;
779 	xsl_object *intern;
780 	zval *entry, new_string;
781 	zend_string *restrict_str = NULL;
782 	HashTable *restrict_ht = NULL;
783 
784 	ZEND_PARSE_PARAMETERS_START(0, 1)
785 		Z_PARAM_OPTIONAL
786 		Z_PARAM_ARRAY_HT_OR_STR_OR_NULL(restrict_ht, restrict_str)
787 	ZEND_PARSE_PARAMETERS_END();
788 
789 	intern = Z_XSL_P(id);
790 
791 	if (restrict_ht) {
792 		ZEND_HASH_FOREACH_VAL(restrict_ht, entry) {
793 			zend_string *str = zval_try_get_string(entry);
794 			if (UNEXPECTED(!str)) {
795 				return;
796 			}
797 			ZVAL_LONG(&new_string, 1);
798 			zend_hash_update(intern->registered_phpfunctions, str, &new_string);
799 			zend_string_release(str);
800 		} ZEND_HASH_FOREACH_END();
801 
802 		intern->registerPhpFunctions = 2;
803 	} else if (restrict_str) {
804 		ZVAL_LONG(&new_string, 1);
805 		zend_hash_update(intern->registered_phpfunctions, restrict_str, &new_string);
806 		intern->registerPhpFunctions = 2;
807 	} else {
808 		intern->registerPhpFunctions = 1;
809 	}
810 }
811 /* }}} end XSLTProcessor::registerPHPFunctions(); */
812 
813 /* {{{ */
PHP_METHOD(XSLTProcessor,setProfiling)814 PHP_METHOD(XSLTProcessor, setProfiling)
815 {
816 	zval *id = ZEND_THIS;
817 	xsl_object *intern;
818 	char *filename = NULL;
819 	size_t filename_len;
820 
821 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "p!", &filename, &filename_len) == FAILURE) {
822 		RETURN_THROWS();
823 	}
824 
825 	intern = Z_XSL_P(id);
826 	if (intern->profiling) {
827 		efree(intern->profiling);
828 	}
829 	if (filename != NULL) {
830 		intern->profiling = estrndup(filename, filename_len);
831 	} else {
832 		intern->profiling = NULL;
833 	}
834 
835 	RETURN_TRUE;
836 }
837 /* }}} end XSLTProcessor::setProfiling */
838 
839 /* {{{ */
PHP_METHOD(XSLTProcessor,setSecurityPrefs)840 PHP_METHOD(XSLTProcessor, setSecurityPrefs)
841 {
842 	zval *id = ZEND_THIS;
843 	xsl_object *intern;
844 	zend_long securityPrefs, oldSecurityPrefs;
845 
846 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &securityPrefs) == FAILURE) {
847 		RETURN_THROWS();
848 	}
849 	intern = Z_XSL_P(id);
850 	oldSecurityPrefs = intern->securityPrefs;
851 	intern->securityPrefs = securityPrefs;
852 	/* set this to 1 so that we know, it was set through this method. Can be removed, when we remove the ini setting */
853 	intern->securityPrefsSet = 1;
854 	RETURN_LONG(oldSecurityPrefs);
855 }
856 /* }}} end XSLTProcessor::setSecurityPrefs */
857 
858 /* {{{ */
PHP_METHOD(XSLTProcessor,getSecurityPrefs)859 PHP_METHOD(XSLTProcessor, getSecurityPrefs)
860 {
861 	zval *id = ZEND_THIS;
862 	xsl_object *intern;
863 
864 	if (zend_parse_parameters_none() == FAILURE) {
865 		RETURN_THROWS();
866 	}
867 
868 	intern = Z_XSL_P(id);
869 
870 	RETURN_LONG(intern->securityPrefs);
871 }
872 /* }}} end XSLTProcessor::getSecurityPrefs */
873 
874 /* {{{ */
PHP_METHOD(XSLTProcessor,hasExsltSupport)875 PHP_METHOD(XSLTProcessor, hasExsltSupport)
876 {
877 	if (zend_parse_parameters_none() == FAILURE) {
878 		RETURN_THROWS();
879 	}
880 
881 #ifdef HAVE_XSL_EXSLT
882 	RETURN_TRUE;
883 #else
884 	RETURN_FALSE;
885 #endif
886 }
887 /* }}} end XSLTProcessor::hasExsltSupport(); */
888