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php_libxml.h
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/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| https://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Shane Caraveo <[email protected]> |
| Wez Furlong <[email protected]> |
+----------------------------------------------------------------------+
*/
#ifndef PHP_LIBXML_H
#define PHP_LIBXML_H
#ifdef HAVE_LIBXML
extern zend_module_entry libxml_module_entry;
#define libxml_module_ptr &libxml_module_entry
#include "php_version.h"
#define PHP_LIBXML_VERSION PHP_VERSION
#ifdef PHP_WIN32
# define PHP_LIBXML_API __declspec(dllexport)
#elif defined(__GNUC__) && __GNUC__ >= 4
# define PHP_LIBXML_API __attribute__ ((visibility("default")))
#else
# define PHP_LIBXML_API
#endif
#include "zend_smart_str.h"
#include <libxml/tree.h>
#include <libxml/parser.h>
#define LIBXML_SAVE_NOEMPTYTAG 1<<2
ZEND_BEGIN_MODULE_GLOBALS(libxml)
zval stream_context;
smart_str error_buffer;
zend_llist *error_list;
struct _php_libxml_entity_resolver {
zval callback;
zend_fcall_info fci;
zend_fcall_info_cache fcc;
} entity_loader;
bool entity_loader_disabled;
ZEND_END_MODULE_GLOBALS(libxml)
typedef struct _libxml_doc_props {
int formatoutput;
int validateonparse;
int resolveexternals;
int preservewhitespace;
int substituteentities;
int stricterror;
int recover;
HashTable *classmap;
} libxml_doc_props;
typedef struct _php_libxml_ref_obj {
void *ptr;
int refcount;
libxml_doc_props *doc_props;
} php_libxml_ref_obj;
typedef struct _php_libxml_node_ptr {
xmlNodePtr node;
int refcount;
void *_private;
} php_libxml_node_ptr;
typedef struct _php_libxml_node_object {
php_libxml_node_ptr *node;
php_libxml_ref_obj *document;
HashTable *properties;
zend_object std;
} php_libxml_node_object;
static inline php_libxml_node_object *php_libxml_node_fetch_object(zend_object *obj) {
return (php_libxml_node_object *)((char*)(obj) - obj->handlers->offset);
}
#define Z_LIBXML_NODE_P(zv) php_libxml_node_fetch_object(Z_OBJ_P((zv)))
typedef void * (*php_libxml_export_node) (zval *object);
PHP_LIBXML_API int php_libxml_increment_node_ptr(php_libxml_node_object *object, xmlNodePtr node, void *private_data);
PHP_LIBXML_API int php_libxml_decrement_node_ptr(php_libxml_node_object *object);
PHP_LIBXML_API int php_libxml_increment_doc_ref(php_libxml_node_object *object, xmlDocPtr docp);
PHP_LIBXML_API int php_libxml_decrement_doc_ref(php_libxml_node_object *object);
PHP_LIBXML_API xmlNodePtr php_libxml_import_node(zval *object);
PHP_LIBXML_API zval *php_libxml_register_export(zend_class_entry *ce, php_libxml_export_node export_function);
/* When an explicit freeing of node and children is required */
PHP_LIBXML_API void php_libxml_node_free_list(xmlNodePtr node);
PHP_LIBXML_API void php_libxml_node_free_resource(xmlNodePtr node);
/* When object dtor is called as node may still be referenced */
PHP_LIBXML_API void php_libxml_node_decrement_resource(php_libxml_node_object *object);
PHP_LIBXML_API void php_libxml_error_handler(void *ctx, const char *msg, ...);
PHP_LIBXML_API void php_libxml_ctx_warning(void *ctx, const char *msg, ...);
PHP_LIBXML_API void php_libxml_ctx_error(void *ctx, const char *msg, ...);
PHP_LIBXML_API int php_libxml_xmlCheckUTF8(const unsigned char *s);
PHP_LIBXML_API void php_libxml_switch_context(zval *context, zval *oldcontext);
PHP_LIBXML_API void php_libxml_issue_error(int level, const char *msg);
PHP_LIBXML_API bool php_libxml_disable_entity_loader(bool disable);
/* Init/shutdown functions*/
PHP_LIBXML_API void php_libxml_initialize(void);
PHP_LIBXML_API void php_libxml_shutdown(void);
#define LIBXML(v) ZEND_MODULE_GLOBALS_ACCESSOR(libxml, v)
#if defined(ZTS) && defined(COMPILE_DL_LIBXML)
ZEND_TSRMLS_CACHE_EXTERN()
#endif
#if defined(__clang__)
# define PHP_LIBXML_IGNORE_DEPRECATIONS_START \
_Pragma("clang diagnostic push") \
_Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"")
# define PHP_LIBXML_IGNORE_DEPRECATIONS_END \
_Pragma("clang diagnostic pop")
#elif defined(__GNUC__)
# define PHP_LIBXML_IGNORE_DEPRECATIONS_START \
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
# define PHP_LIBXML_IGNORE_DEPRECATIONS_END \
_Pragma("GCC diagnostic pop")
#else
# define PHP_LIBXML_IGNORE_DEPRECATIONS_START
# define PHP_LIBXML_IGNORE_DEPRECATIONS_END
#endif
/* Other extension may override the global state options, these global options
* are copied initially to ctxt->options. Set the options to a known good value.
* See libxml2 globals.c and parserInternals.c.
* The unique_name argument allows multiple sanitizes and restores within the
* same function, even nested is necessary. */
#define PHP_LIBXML_SANITIZE_GLOBALS(unique_name) \
PHP_LIBXML_IGNORE_DEPRECATIONS_START \
int xml_old_loadsubset_##unique_name = xmlLoadExtDtdDefaultValue; \
xmlLoadExtDtdDefaultValue = 0; \
int xml_old_validate_##unique_name = xmlDoValidityCheckingDefaultValue; \
xmlDoValidityCheckingDefaultValue = 0; \
int xml_old_pedantic_##unique_name = xmlPedanticParserDefault(0); \
int xml_old_substitute_##unique_name = xmlSubstituteEntitiesDefault(0); \
int xml_old_linenrs_##unique_name = xmlLineNumbersDefault(0); \
int xml_old_blanks_##unique_name = xmlKeepBlanksDefault(1); \
PHP_LIBXML_IGNORE_DEPRECATIONS_END
#define PHP_LIBXML_RESTORE_GLOBALS(unique_name) \
PHP_LIBXML_IGNORE_DEPRECATIONS_START \
xmlLoadExtDtdDefaultValue = xml_old_loadsubset_##unique_name; \
xmlDoValidityCheckingDefaultValue = xml_old_validate_##unique_name; \
(void) xmlPedanticParserDefault(xml_old_pedantic_##unique_name); \
(void) xmlSubstituteEntitiesDefault(xml_old_substitute_##unique_name); \
(void) xmlLineNumbersDefault(xml_old_linenrs_##unique_name); \
(void) xmlKeepBlanksDefault(xml_old_blanks_##unique_name); \
PHP_LIBXML_IGNORE_DEPRECATIONS_END
/* Alternative for above, working directly on the context and not setting globals.
* Generally faster because no locking is involved, and this has the advantage that it sets the options to a known good value. */
static zend_always_inline void php_libxml_sanitize_parse_ctxt_options(xmlParserCtxtPtr ctxt)
{
PHP_LIBXML_IGNORE_DEPRECATIONS_START
ctxt->loadsubset = 0;
ctxt->validate = 0;
ctxt->pedantic = 0;
ctxt->replaceEntities = 0;
ctxt->linenumbers = 0;
ctxt->keepBlanks = 1;
ctxt->options = 0;
PHP_LIBXML_IGNORE_DEPRECATIONS_END
}
#else /* HAVE_LIBXML */
#define libxml_module_ptr NULL
#endif
#define phpext_libxml_ptr libxml_module_ptr
#endif /* PHP_LIBXML_H */