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xml.c
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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: Stig Sæther Bakken <[email protected]> |
| Thies C. Arntzen <[email protected]> |
| Sterling Hughes <[email protected]> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "zend_variables.h"
#include "ext/standard/php_string.h"
#include "ext/standard/info.h"
#include "ext/standard/html.h"
#ifdef HAVE_XML
#include "php_xml.h"
# include "ext/standard/head.h"
#ifdef LIBXML_EXPAT_COMPAT
#include "ext/libxml/php_libxml.h"
#endif
#include "xml_arginfo.h"
/* Short-term TODO list:
* - Implement XML_ExternalEntityParserCreate()
* - XML_SetCommentHandler
* - XML_SetCdataSectionHandler
* - XML_SetParamEntityParsing
*/
/* Long-term TODO list:
* - Fix the expat library so you can install your own memory manager
* functions
*/
/* Known bugs:
* - Weird things happen with <![CDATA[]]> sections.
*/
ZEND_BEGIN_MODULE_GLOBALS(xml)
XML_Char *default_encoding;
ZEND_END_MODULE_GLOBALS(xml)
ZEND_DECLARE_MODULE_GLOBALS(xml)
#define XML(v) ZEND_MODULE_GLOBALS_ACCESSOR(xml, v)
typedef struct {
int case_folding;
XML_Parser parser;
XML_Char *target_encoding;
/* Reference to the object itself, for convenience.
* It is not owned, do not release it. */
zval index;
/* We return a pointer to these zvals in get_gc(), so it's
* important that a) they are adjacent b) object is the first
* and c) the number of zvals is kept up to date. */
#define XML_PARSER_NUM_ZVALS 12
zval object;
zval startElementHandler;
zval endElementHandler;
zval characterDataHandler;
zval processingInstructionHandler;
zval defaultHandler;
zval unparsedEntityDeclHandler;
zval notationDeclHandler;
zval externalEntityRefHandler;
zval unknownEncodingHandler;
zval startNamespaceDeclHandler;
zval endNamespaceDeclHandler;
zend_function *startElementPtr;
zend_function *endElementPtr;
zend_function *characterDataPtr;
zend_function *processingInstructionPtr;
zend_function *defaultPtr;
zend_function *unparsedEntityDeclPtr;
zend_function *notationDeclPtr;
zend_function *externalEntityRefPtr;
zend_function *unknownEncodingPtr;
zend_function *startNamespaceDeclPtr;
zend_function *endNamespaceDeclPtr;
zval data;
zval info;
int level;
int toffset;
int curtag;
zval *ctag;
char **ltags;
int lastwasopen;
int skipwhite;
int isparsing;
XML_Char *baseURI;
zend_object std;
} xml_parser;
typedef struct {
XML_Char *name;
char (*decoding_function)(unsigned short);
unsigned short (*encoding_function)(unsigned char);
} xml_encoding;
enum php_xml_option {
PHP_XML_OPTION_CASE_FOLDING = 1,
PHP_XML_OPTION_TARGET_ENCODING,
PHP_XML_OPTION_SKIP_TAGSTART,
PHP_XML_OPTION_SKIP_WHITE
};
/* {{{ dynamically loadable module stuff */
#ifdef COMPILE_DL_XML
#ifdef ZTS
ZEND_TSRMLS_CACHE_DEFINE()
#endif
ZEND_GET_MODULE(xml)
#endif /* COMPILE_DL_XML */
/* }}} */
#define XML_MAXLEVEL 255 /* XXX this should be dynamic */
#define SKIP_TAGSTART(str) ((str) + (parser->toffset > (int)strlen(str) ? strlen(str) : parser->toffset))
static zend_class_entry *xml_parser_ce;
static zend_object_handlers xml_parser_object_handlers;
/* {{{ function prototypes */
PHP_MINIT_FUNCTION(xml);
PHP_MINFO_FUNCTION(xml);
static PHP_GINIT_FUNCTION(xml);
static zend_object *xml_parser_create_object(zend_class_entry *class_type);
static void xml_parser_free_obj(zend_object *object);
static HashTable *xml_parser_get_gc(zend_object *object, zval **table, int *n);
static zend_function *xml_parser_get_constructor(zend_object *object);
static zend_string *xml_utf8_decode(const XML_Char *, size_t, const XML_Char *);
static void xml_set_handler(zval *, zval *);
inline static unsigned short xml_encode_iso_8859_1(unsigned char);
inline static char xml_decode_iso_8859_1(unsigned short);
inline static unsigned short xml_encode_us_ascii(unsigned char);
inline static char xml_decode_us_ascii(unsigned short);
static void xml_call_handler(xml_parser *, zval *, zend_function *, int, zval *, zval *);
static void _xml_xmlchar_zval(const XML_Char *, int, const XML_Char *, zval *);
static int _xml_xmlcharlen(const XML_Char *);
static void _xml_add_to_info(xml_parser *parser,char *name);
inline static zend_string *_xml_decode_tag(xml_parser *parser, const char *tag);
void _xml_startElementHandler(void *, const XML_Char *, const XML_Char **);
void _xml_endElementHandler(void *, const XML_Char *);
void _xml_characterDataHandler(void *, const XML_Char *, int);
void _xml_processingInstructionHandler(void *, const XML_Char *, const XML_Char *);
void _xml_defaultHandler(void *, const XML_Char *, int);
void _xml_unparsedEntityDeclHandler(void *, const XML_Char *, const XML_Char *, const XML_Char *, const XML_Char *, const XML_Char *);
void _xml_notationDeclHandler(void *, const XML_Char *, const XML_Char *, const XML_Char *, const XML_Char *);
int _xml_externalEntityRefHandler(XML_Parser, const XML_Char *, const XML_Char *, const XML_Char *, const XML_Char *);
void _xml_startNamespaceDeclHandler(void *, const XML_Char *, const XML_Char *);
void _xml_endNamespaceDeclHandler(void *, const XML_Char *);
/* }}} */
#ifdef LIBXML_EXPAT_COMPAT
static const zend_module_dep xml_deps[] = {
ZEND_MOD_REQUIRED("libxml")
ZEND_MOD_END
};
#endif
zend_module_entry xml_module_entry = {
#ifdef LIBXML_EXPAT_COMPAT
STANDARD_MODULE_HEADER_EX, NULL,
xml_deps,
#else
STANDARD_MODULE_HEADER,
#endif
"xml", /* extension name */
ext_functions, /* extension function list */
PHP_MINIT(xml), /* extension-wide startup function */
NULL, /* extension-wide shutdown function */
NULL, /* per-request startup function */
NULL, /* per-request shutdown function */
PHP_MINFO(xml), /* information function */
PHP_XML_VERSION,
PHP_MODULE_GLOBALS(xml), /* globals descriptor */
PHP_GINIT(xml), /* globals ctor */
NULL, /* globals dtor */
NULL, /* post deactivate */
STANDARD_MODULE_PROPERTIES_EX
};
/* All the encoding functions are set to NULL right now, since all
* the encoding is currently done internally by expat/xmltok.
*/
const xml_encoding xml_encodings[] = {
{ (XML_Char *)"ISO-8859-1", xml_decode_iso_8859_1, xml_encode_iso_8859_1 },
{ (XML_Char *)"US-ASCII", xml_decode_us_ascii, xml_encode_us_ascii },
{ (XML_Char *)"UTF-8", NULL, NULL },
{ (XML_Char *)NULL, NULL, NULL }
};
static XML_Memory_Handling_Suite php_xml_mem_hdlrs;
/* }}} */
/* {{{ startup, shutdown and info functions */
static PHP_GINIT_FUNCTION(xml)
{
#if defined(COMPILE_DL_XML) && defined(ZTS)
ZEND_TSRMLS_CACHE_UPDATE();
#endif
xml_globals->default_encoding = (XML_Char*)"UTF-8";
}
static void *php_xml_malloc_wrapper(size_t sz)
{
return emalloc(sz);
}
static void *php_xml_realloc_wrapper(void *ptr, size_t sz)
{
return erealloc(ptr, sz);
}
static void php_xml_free_wrapper(void *ptr)
{
if (ptr != NULL) {
efree(ptr);
}
}
PHP_MINIT_FUNCTION(xml)
{
xml_parser_ce = register_class_XMLParser();
xml_parser_ce->create_object = xml_parser_create_object;
memcpy(&xml_parser_object_handlers, &std_object_handlers, sizeof(zend_object_handlers));
xml_parser_object_handlers.offset = XtOffsetOf(xml_parser, std);
xml_parser_object_handlers.free_obj = xml_parser_free_obj;
xml_parser_object_handlers.get_gc = xml_parser_get_gc;
xml_parser_object_handlers.get_constructor = xml_parser_get_constructor;
xml_parser_object_handlers.clone_obj = NULL;
xml_parser_object_handlers.compare = zend_objects_not_comparable;
REGISTER_LONG_CONSTANT("XML_ERROR_NONE", XML_ERROR_NONE, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_NO_MEMORY", XML_ERROR_NO_MEMORY, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_SYNTAX", XML_ERROR_SYNTAX, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_NO_ELEMENTS", XML_ERROR_NO_ELEMENTS, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_INVALID_TOKEN", XML_ERROR_INVALID_TOKEN, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_UNCLOSED_TOKEN", XML_ERROR_UNCLOSED_TOKEN, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_PARTIAL_CHAR", XML_ERROR_PARTIAL_CHAR, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_TAG_MISMATCH", XML_ERROR_TAG_MISMATCH, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_DUPLICATE_ATTRIBUTE", XML_ERROR_DUPLICATE_ATTRIBUTE, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_JUNK_AFTER_DOC_ELEMENT", XML_ERROR_JUNK_AFTER_DOC_ELEMENT, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_PARAM_ENTITY_REF", XML_ERROR_PARAM_ENTITY_REF, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_UNDEFINED_ENTITY", XML_ERROR_UNDEFINED_ENTITY, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_RECURSIVE_ENTITY_REF", XML_ERROR_RECURSIVE_ENTITY_REF, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_ASYNC_ENTITY", XML_ERROR_ASYNC_ENTITY, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_BAD_CHAR_REF", XML_ERROR_BAD_CHAR_REF, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_BINARY_ENTITY_REF", XML_ERROR_BINARY_ENTITY_REF, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF", XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_MISPLACED_XML_PI", XML_ERROR_MISPLACED_XML_PI, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_UNKNOWN_ENCODING", XML_ERROR_UNKNOWN_ENCODING, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_INCORRECT_ENCODING", XML_ERROR_INCORRECT_ENCODING, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_UNCLOSED_CDATA_SECTION", XML_ERROR_UNCLOSED_CDATA_SECTION, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_ERROR_EXTERNAL_ENTITY_HANDLING", XML_ERROR_EXTERNAL_ENTITY_HANDLING, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_OPTION_CASE_FOLDING", PHP_XML_OPTION_CASE_FOLDING, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_OPTION_TARGET_ENCODING", PHP_XML_OPTION_TARGET_ENCODING, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_OPTION_SKIP_TAGSTART", PHP_XML_OPTION_SKIP_TAGSTART, CONST_CS|CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("XML_OPTION_SKIP_WHITE", PHP_XML_OPTION_SKIP_WHITE, CONST_CS|CONST_PERSISTENT);
/* this object should not be pre-initialised at compile time,
as the order of members may vary */
php_xml_mem_hdlrs.malloc_fcn = php_xml_malloc_wrapper;
php_xml_mem_hdlrs.realloc_fcn = php_xml_realloc_wrapper;
php_xml_mem_hdlrs.free_fcn = php_xml_free_wrapper;
#ifdef LIBXML_EXPAT_COMPAT
REGISTER_STRING_CONSTANT("XML_SAX_IMPL", "libxml", CONST_CS|CONST_PERSISTENT);
#else
REGISTER_STRING_CONSTANT("XML_SAX_IMPL", "expat", CONST_CS|CONST_PERSISTENT);
#endif
return SUCCESS;
}
PHP_MINFO_FUNCTION(xml)
{
php_info_print_table_start();
php_info_print_table_row(2, "XML Support", "active");
php_info_print_table_row(2, "XML Namespace Support", "active");
#if defined(LIBXML_DOTTED_VERSION) && defined(LIBXML_EXPAT_COMPAT)
php_info_print_table_row(2, "libxml2 Version", LIBXML_DOTTED_VERSION);
#else
php_info_print_table_row(2, "EXPAT Version", XML_ExpatVersion());
#endif
php_info_print_table_end();
}
/* }}} */
/* {{{ extension-internal functions */
static void _xml_xmlchar_zval(const XML_Char *s, int len, const XML_Char *encoding, zval *ret)
{
if (s == NULL) {
ZVAL_FALSE(ret);
return;
}
if (len == 0) {
len = _xml_xmlcharlen(s);
}
ZVAL_STR(ret, xml_utf8_decode(s, len, encoding));
}
/* }}} */
static inline xml_parser *xml_parser_from_obj(zend_object *obj) {
return (xml_parser *)((char *)(obj) - XtOffsetOf(xml_parser, std));
}
#define Z_XMLPARSER_P(zv) xml_parser_from_obj(Z_OBJ_P(zv))
static zend_object *xml_parser_create_object(zend_class_entry *class_type) {
xml_parser *intern = zend_object_alloc(sizeof(xml_parser), class_type);
memset(intern, 0, sizeof(xml_parser) - sizeof(zend_object));
zend_object_std_init(&intern->std, class_type);
object_properties_init(&intern->std, class_type);
intern->std.handlers = &xml_parser_object_handlers;
return &intern->std;
}
static void xml_parser_free_obj(zend_object *object)
{
xml_parser *parser = xml_parser_from_obj(object);
if (parser->parser) {
XML_ParserFree(parser->parser);
}
if (parser->ltags) {
int inx;
for (inx = 0; ((inx < parser->level) && (inx < XML_MAXLEVEL)); inx++)
efree(parser->ltags[ inx ]);
efree(parser->ltags);
}
if (!Z_ISUNDEF(parser->startElementHandler)) {
zval_ptr_dtor(&parser->startElementHandler);
}
if (!Z_ISUNDEF(parser->endElementHandler)) {
zval_ptr_dtor(&parser->endElementHandler);
}
if (!Z_ISUNDEF(parser->characterDataHandler)) {
zval_ptr_dtor(&parser->characterDataHandler);
}
if (!Z_ISUNDEF(parser->processingInstructionHandler)) {
zval_ptr_dtor(&parser->processingInstructionHandler);
}
if (!Z_ISUNDEF(parser->defaultHandler)) {
zval_ptr_dtor(&parser->defaultHandler);
}
if (!Z_ISUNDEF(parser->unparsedEntityDeclHandler)) {
zval_ptr_dtor(&parser->unparsedEntityDeclHandler);
}
if (!Z_ISUNDEF(parser->notationDeclHandler)) {
zval_ptr_dtor(&parser->notationDeclHandler);
}
if (!Z_ISUNDEF(parser->externalEntityRefHandler)) {
zval_ptr_dtor(&parser->externalEntityRefHandler);
}
if (!Z_ISUNDEF(parser->unknownEncodingHandler)) {
zval_ptr_dtor(&parser->unknownEncodingHandler);
}
if (!Z_ISUNDEF(parser->startNamespaceDeclHandler)) {
zval_ptr_dtor(&parser->startNamespaceDeclHandler);
}
if (!Z_ISUNDEF(parser->endNamespaceDeclHandler)) {
zval_ptr_dtor(&parser->endNamespaceDeclHandler);
}
if (parser->baseURI) {
efree(parser->baseURI);
}
if (!Z_ISUNDEF(parser->object)) {
zval_ptr_dtor(&parser->object);
}
zend_object_std_dtor(&parser->std);
}
static HashTable *xml_parser_get_gc(zend_object *object, zval **table, int *n)
{
xml_parser *parser = xml_parser_from_obj(object);
*table = &parser->object;
*n = XML_PARSER_NUM_ZVALS;
return zend_std_get_properties(object);
}
static zend_function *xml_parser_get_constructor(zend_object *object) {
zend_throw_error(NULL, "Cannot directly construct XMLParser, use xml_parser_create() or xml_parser_create_ns() instead");
return NULL;
}
/* {{{ xml_set_handler() */
static void xml_set_handler(zval *handler, zval *data)
{
/* If we have already a handler, release it */
if (handler) {
zval_ptr_dtor(handler);
}
/* IS_ARRAY might indicate that we're using array($obj, 'method') syntax */
if (Z_TYPE_P(data) != IS_ARRAY && Z_TYPE_P(data) != IS_OBJECT) {
convert_to_string(data);
if (Z_STRLEN_P(data) == 0) {
ZVAL_UNDEF(handler);
return;
}
}
ZVAL_COPY(handler, data);
}
/* }}} */
/* {{{ xml_call_handler() */
static void xml_call_handler(xml_parser *parser, zval *handler, zend_function *function_ptr, int argc, zval *argv, zval *retval)
{
int i;
ZVAL_UNDEF(retval);
if (parser && handler && !EG(exception)) {
int result;
zend_fcall_info fci;
fci.size = sizeof(fci);
ZVAL_COPY_VALUE(&fci.function_name, handler);
fci.object = Z_OBJ(parser->object);
fci.retval = retval;
fci.param_count = argc;
fci.params = argv;
fci.named_params = NULL;
result = zend_call_function(&fci, NULL);
if (result == FAILURE) {
zval *method;
zval *obj;
if (Z_TYPE_P(handler) == IS_STRING) {
php_error_docref(NULL, E_WARNING, "Unable to call handler %s()", Z_STRVAL_P(handler));
} else if (Z_TYPE_P(handler) == IS_ARRAY &&
(obj = zend_hash_index_find(Z_ARRVAL_P(handler), 0)) != NULL &&
(method = zend_hash_index_find(Z_ARRVAL_P(handler), 1)) != NULL &&
Z_TYPE_P(obj) == IS_OBJECT &&
Z_TYPE_P(method) == IS_STRING) {
php_error_docref(NULL, E_WARNING, "Unable to call handler %s::%s()", ZSTR_VAL(Z_OBJCE_P(obj)->name), Z_STRVAL_P(method));
} else
php_error_docref(NULL, E_WARNING, "Unable to call handler");
}
}
for (i = 0; i < argc; i++) {
zval_ptr_dtor(&argv[i]);
}
}
/* }}} */
/* {{{ xml_encode_iso_8859_1() */
inline static unsigned short xml_encode_iso_8859_1(unsigned char c)
{
return (unsigned short)c;
}
/* }}} */
/* {{{ xml_decode_iso_8859_1() */
inline static char xml_decode_iso_8859_1(unsigned short c)
{
return (char)(c > 0xff ? '?' : c);
}
/* }}} */
/* {{{ xml_encode_us_ascii() */
inline static unsigned short xml_encode_us_ascii(unsigned char c)
{
return (unsigned short)c;
}
/* }}} */
/* {{{ xml_decode_us_ascii() */
inline static char xml_decode_us_ascii(unsigned short c)
{
return (char)(c > 0x7f ? '?' : c);
}
/* }}} */
/* {{{ xml_get_encoding() */
static const xml_encoding *xml_get_encoding(const XML_Char *name)
{
const xml_encoding *enc = &xml_encodings[0];
while (enc && enc->name) {
if (strcasecmp((char *)name, (char *)enc->name) == 0) {
return enc;
}
enc++;
}
return NULL;
}
/* }}} */
/* {{{ xml_utf8_decode() */
static zend_string *xml_utf8_decode(const XML_Char *s, size_t len, const XML_Char *encoding)
{
size_t pos = 0;
unsigned int c;
char (*decoder)(unsigned short) = NULL;
const xml_encoding *enc = xml_get_encoding(encoding);
zend_string *str;
if (enc) {
decoder = enc->decoding_function;
}
if (decoder == NULL) {
/* If the target encoding was unknown, or no decoder function
* was specified, return the UTF-8-encoded data as-is.
*/
str = zend_string_init((char *)s, len, 0);
return str;
}
str = zend_string_alloc(len, 0);
ZSTR_LEN(str) = 0;
while (pos < len) {
int status = FAILURE;
c = php_next_utf8_char((const unsigned char*)s, (size_t) len, &pos, &status);
if (status == FAILURE || c > 0xFFU) {
c = '?';
}
ZSTR_VAL(str)[ZSTR_LEN(str)++] = decoder ? (unsigned int)decoder(c) : c;
}
ZSTR_VAL(str)[ZSTR_LEN(str)] = '\0';
if (ZSTR_LEN(str) < len) {
str = zend_string_truncate(str, ZSTR_LEN(str), 0);
}
return str;
}
/* }}} */
/* {{{ _xml_xmlcharlen() */
static int _xml_xmlcharlen(const XML_Char *s)
{
int len = 0;
while (*s) {
len++;
s++;
}
return len;
}
/* }}} */
/* {{{ _xml_add_to_info() */
static void _xml_add_to_info(xml_parser *parser,char *name)
{
zval *element;
if (Z_ISUNDEF(parser->info)) {
return;
}
if ((element = zend_hash_str_find(Z_ARRVAL(parser->info), name, strlen(name))) == NULL) {
zval values;
array_init(&values);
element = zend_hash_str_update(Z_ARRVAL(parser->info), name, strlen(name), &values);
}
add_next_index_long(element, parser->curtag);
parser->curtag++;
}
/* }}} */
/* {{{ _xml_decode_tag() */
static zend_string *_xml_decode_tag(xml_parser *parser, const char *tag)
{
zend_string *str;
str = xml_utf8_decode((const XML_Char *)tag, strlen(tag), parser->target_encoding);
if (parser->case_folding) {
zend_str_toupper(ZSTR_VAL(str), ZSTR_LEN(str));
}
return str;
}
/* }}} */
/* {{{ _xml_startElementHandler() */
void _xml_startElementHandler(void *userData, const XML_Char *name, const XML_Char **attributes)
{
xml_parser *parser = (xml_parser *)userData;
const char **attrs = (const char **) attributes;
zend_string *att, *tag_name, *val;
zval retval, args[3];
if (parser) {
parser->level++;
tag_name = _xml_decode_tag(parser, (const char *)name);
if (!Z_ISUNDEF(parser->startElementHandler)) {
ZVAL_COPY(&args[0], &parser->index);
ZVAL_STRING(&args[1], SKIP_TAGSTART(ZSTR_VAL(tag_name)));
array_init(&args[2]);
while (attributes && *attributes) {
zval tmp;
att = _xml_decode_tag(parser, (const char *)attributes[0]);
val = xml_utf8_decode(attributes[1], strlen((char *)attributes[1]), parser->target_encoding);
ZVAL_STR(&tmp, val);
zend_symtable_update(Z_ARRVAL(args[2]), att, &tmp);
attributes += 2;
zend_string_release_ex(att, 0);
}
xml_call_handler(parser, &parser->startElementHandler, parser->startElementPtr, 3, args, &retval);
zval_ptr_dtor(&retval);
}
if (!Z_ISUNDEF(parser->data)) {
if (parser->level <= XML_MAXLEVEL) {
zval tag, atr;
int atcnt = 0;
array_init(&tag);
array_init(&atr);
_xml_add_to_info(parser, ZSTR_VAL(tag_name) + parser->toffset);
add_assoc_string(&tag, "tag", SKIP_TAGSTART(ZSTR_VAL(tag_name))); /* cast to avoid gcc-warning */
add_assoc_string(&tag, "type", "open");
add_assoc_long(&tag, "level", parser->level);
parser->ltags[parser->level-1] = estrdup(ZSTR_VAL(tag_name));
parser->lastwasopen = 1;
attributes = (const XML_Char **) attrs;
while (attributes && *attributes) {
zval tmp;
att = _xml_decode_tag(parser, (const char *)attributes[0]);
val = xml_utf8_decode(attributes[1], strlen((char *)attributes[1]), parser->target_encoding);
ZVAL_STR(&tmp, val);
zend_symtable_update(Z_ARRVAL(atr), att, &tmp);
atcnt++;
attributes += 2;
zend_string_release_ex(att, 0);
}
if (atcnt) {
zend_hash_str_add(Z_ARRVAL(tag), "attributes", sizeof("attributes") - 1, &atr);
} else {
zval_ptr_dtor(&atr);
}
parser->ctag = zend_hash_next_index_insert(Z_ARRVAL(parser->data), &tag);
} else if (parser->level == (XML_MAXLEVEL + 1)) {
php_error_docref(NULL, E_WARNING, "Maximum depth exceeded - Results truncated");
}
}
zend_string_release_ex(tag_name, 0);
}
}
/* }}} */
/* {{{ _xml_endElementHandler() */
void _xml_endElementHandler(void *userData, const XML_Char *name)
{
xml_parser *parser = (xml_parser *)userData;
if (parser) {
zval retval, args[2];
zend_string *tag_name = _xml_decode_tag(parser, (const char *)name);
if (!Z_ISUNDEF(parser->endElementHandler)) {
ZVAL_COPY(&args[0], &parser->index);
ZVAL_STRING(&args[1], SKIP_TAGSTART(ZSTR_VAL(tag_name)));
xml_call_handler(parser, &parser->endElementHandler, parser->endElementPtr, 2, args, &retval);
zval_ptr_dtor(&retval);
}
if (!Z_ISUNDEF(parser->data)) {
zval tag;
if (parser->lastwasopen) {
add_assoc_string(parser->ctag, "type", "complete");
} else {
array_init(&tag);
_xml_add_to_info(parser, ZSTR_VAL(tag_name) + parser->toffset);
add_assoc_string(&tag, "tag", SKIP_TAGSTART(ZSTR_VAL(tag_name))); /* cast to avoid gcc-warning */
add_assoc_string(&tag, "type", "close");
add_assoc_long(&tag, "level", parser->level);
zend_hash_next_index_insert(Z_ARRVAL(parser->data), &tag);
}
parser->lastwasopen = 0;
}
zend_string_release_ex(tag_name, 0);
if ((parser->ltags) && (parser->level <= XML_MAXLEVEL)) {
efree(parser->ltags[parser->level-1]);
}
parser->level--;
}
}
/* }}} */
/* {{{ _xml_characterDataHandler() */
void _xml_characterDataHandler(void *userData, const XML_Char *s, int len)
{
xml_parser *parser = (xml_parser *)userData;
if (parser) {
zval retval, args[2];
if (!Z_ISUNDEF(parser->characterDataHandler)) {
ZVAL_COPY(&args[0], &parser->index);
_xml_xmlchar_zval(s, len, parser->target_encoding, &args[1]);
xml_call_handler(parser, &parser->characterDataHandler, parser->characterDataPtr, 2, args, &retval);
zval_ptr_dtor(&retval);
}
if (!Z_ISUNDEF(parser->data)) {
size_t i;
int doprint = 0;
zend_string *decoded_value;
decoded_value = xml_utf8_decode(s, len, parser->target_encoding);
if (parser->skipwhite) {
for (i = 0; i < ZSTR_LEN(decoded_value); i++) {
switch (ZSTR_VAL(decoded_value)[i]) {
case ' ':
case '\t':
case '\n':
continue;
default:
doprint = 1;
break;
}
if (doprint) {
break;
}
}
}
if (parser->lastwasopen) {
zval *myval;
/* check if the current tag already has a value - if yes append to that! */
if ((myval = zend_hash_str_find(Z_ARRVAL_P(parser->ctag), "value", sizeof("value") - 1))) {
size_t newlen = Z_STRLEN_P(myval) + ZSTR_LEN(decoded_value);
Z_STR_P(myval) = zend_string_extend(Z_STR_P(myval), newlen, 0);
strncpy(Z_STRVAL_P(myval) + Z_STRLEN_P(myval) - ZSTR_LEN(decoded_value),
ZSTR_VAL(decoded_value), ZSTR_LEN(decoded_value) + 1);
zend_string_release_ex(decoded_value, 0);
} else {
if (doprint || (! parser->skipwhite)) {
add_assoc_str(parser->ctag, "value", decoded_value);
} else {
zend_string_release_ex(decoded_value, 0);
}
}
} else {
zval tag;
zval *curtag, *mytype, *myval;
ZEND_HASH_REVERSE_FOREACH_VAL(Z_ARRVAL(parser->data), curtag) {
if ((mytype = zend_hash_str_find(Z_ARRVAL_P(curtag),"type", sizeof("type") - 1))) {
if (zend_string_equals_literal(Z_STR_P(mytype), "cdata")) {
if ((myval = zend_hash_str_find(Z_ARRVAL_P(curtag), "value", sizeof("value") - 1))) {
size_t newlen = Z_STRLEN_P(myval) + ZSTR_LEN(decoded_value);
Z_STR_P(myval) = zend_string_extend(Z_STR_P(myval), newlen, 0);
strncpy(Z_STRVAL_P(myval) + Z_STRLEN_P(myval) - ZSTR_LEN(decoded_value),
ZSTR_VAL(decoded_value), ZSTR_LEN(decoded_value) + 1);
zend_string_release_ex(decoded_value, 0);
return;
}
}
}
break;
} ZEND_HASH_FOREACH_END();
if (parser->level <= XML_MAXLEVEL && parser->level > 0 && (doprint || (! parser->skipwhite))) {
array_init(&tag);
_xml_add_to_info(parser,SKIP_TAGSTART(parser->ltags[parser->level-1]));
add_assoc_string(&tag, "tag", SKIP_TAGSTART(parser->ltags[parser->level-1]));
add_assoc_str(&tag, "value", decoded_value);
add_assoc_string(&tag, "type", "cdata");
add_assoc_long(&tag, "level", parser->level);
zend_hash_next_index_insert(Z_ARRVAL(parser->data), &tag);
} else if (parser->level == (XML_MAXLEVEL + 1)) {
php_error_docref(NULL, E_WARNING, "Maximum depth exceeded - Results truncated");
} else {
zend_string_release_ex(decoded_value, 0);
}
}
}
}
}
/* }}} */
/* {{{ _xml_processingInstructionHandler() */
void _xml_processingInstructionHandler(void *userData, const XML_Char *target, const XML_Char *data)
{
xml_parser *parser = (xml_parser *)userData;
if (parser && !Z_ISUNDEF(parser->processingInstructionHandler)) {
zval retval, args[3];
ZVAL_COPY(&args[0], &parser->index);
_xml_xmlchar_zval(target, 0, parser->target_encoding, &args[1]);
_xml_xmlchar_zval(data, 0, parser->target_encoding, &args[2]);
xml_call_handler(parser, &parser->processingInstructionHandler, parser->processingInstructionPtr, 3, args, &retval);
zval_ptr_dtor(&retval);
}
}
/* }}} */
/* {{{ _xml_defaultHandler() */
void _xml_defaultHandler(void *userData, const XML_Char *s, int len)
{
xml_parser *parser = (xml_parser *)userData;
if (parser && !Z_ISUNDEF(parser->defaultHandler)) {
zval retval, args[2];
ZVAL_COPY(&args[0], &parser->index);
_xml_xmlchar_zval(s, len, parser->target_encoding, &args[1]);
xml_call_handler(parser, &parser->defaultHandler, parser->defaultPtr, 2, args, &retval);
zval_ptr_dtor(&retval);
}
}
/* }}} */
/* {{{ _xml_unparsedEntityDeclHandler() */
void _xml_unparsedEntityDeclHandler(void *userData,
const XML_Char *entityName,
const XML_Char *base,
const XML_Char *systemId,
const XML_Char *publicId,
const XML_Char *notationName)
{
xml_parser *parser = (xml_parser *)userData;
if (parser && !Z_ISUNDEF(parser->unparsedEntityDeclHandler)) {
zval retval, args[6];
ZVAL_COPY(&args[0], &parser->index);
_xml_xmlchar_zval(entityName, 0, parser->target_encoding, &args[1]);
_xml_xmlchar_zval(base, 0, parser->target_encoding, &args[2]);
_xml_xmlchar_zval(systemId, 0, parser->target_encoding, &args[3]);
_xml_xmlchar_zval(publicId, 0, parser->target_encoding, &args[4]);
_xml_xmlchar_zval(notationName, 0, parser->target_encoding, &args[5]);
xml_call_handler(parser, &parser->unparsedEntityDeclHandler, parser->unparsedEntityDeclPtr, 6, args, &retval);
zval_ptr_dtor(&retval);
}
}
/* }}} */
/* {{{ _xml_notationDeclHandler() */
void _xml_notationDeclHandler(void *userData,
const XML_Char *notationName,
const XML_Char *base,
const XML_Char *systemId,
const XML_Char *publicId)
{
xml_parser *parser = (xml_parser *)userData;
if (parser && !Z_ISUNDEF(parser->notationDeclHandler)) {
zval retval, args[5];
ZVAL_COPY(&args[0], &parser->index);
_xml_xmlchar_zval(notationName, 0, parser->target_encoding, &args[1]);
_xml_xmlchar_zval(base, 0, parser->target_encoding, &args[2]);
_xml_xmlchar_zval(systemId, 0, parser->target_encoding, &args[3]);
_xml_xmlchar_zval(publicId, 0, parser->target_encoding, &args[4]);
xml_call_handler(parser, &parser->notationDeclHandler, parser->notationDeclPtr, 5, args, &retval);
zval_ptr_dtor(&retval);
}
}
/* }}} */
/* {{{ _xml_externalEntityRefHandler() */
int _xml_externalEntityRefHandler(XML_Parser parserPtr,
const XML_Char *openEntityNames,
const XML_Char *base,
const XML_Char *systemId,
const XML_Char *publicId)
{
xml_parser *parser = XML_GetUserData(parserPtr);
int ret = 0; /* abort if no handler is set (should be configurable?) */
if (parser && !Z_ISUNDEF(parser->externalEntityRefHandler)) {
zval retval, args[5];
ZVAL_COPY(&args[0], &parser->index);
_xml_xmlchar_zval(openEntityNames, 0, parser->target_encoding, &args[1]);
_xml_xmlchar_zval(base, 0, parser->target_encoding, &args[2]);
_xml_xmlchar_zval(systemId, 0, parser->target_encoding, &args[3]);
_xml_xmlchar_zval(publicId, 0, parser->target_encoding, &args[4]);
xml_call_handler(parser, &parser->externalEntityRefHandler, parser->externalEntityRefPtr, 5, args, &retval);
if (!Z_ISUNDEF(retval)) {
convert_to_long(&retval);
ret = Z_LVAL(retval);
} else {
ret = 0;
}
}
return ret;
}
/* }}} */
/* {{{ _xml_startNamespaceDeclHandler() */
void _xml_startNamespaceDeclHandler(void *userData,const XML_Char *prefix, const XML_Char *uri)
{
xml_parser *parser = (xml_parser *)userData;
if (parser && !Z_ISUNDEF(parser->startNamespaceDeclHandler)) {
zval retval, args[3];
ZVAL_COPY(&args[0], &parser->index);
_xml_xmlchar_zval(prefix, 0, parser->target_encoding, &args[1]);
_xml_xmlchar_zval(uri, 0, parser->target_encoding, &args[2]);
xml_call_handler(parser, &parser->startNamespaceDeclHandler, parser->startNamespaceDeclPtr, 3, args, &retval);
zval_ptr_dtor(&retval);
}
}
/* }}} */
/* {{{ _xml_endNamespaceDeclHandler() */
void _xml_endNamespaceDeclHandler(void *userData, const XML_Char *prefix)
{
xml_parser *parser = (xml_parser *)userData;
if (parser && !Z_ISUNDEF(parser->endNamespaceDeclHandler)) {
zval retval, args[2];
ZVAL_COPY(&args[0], &parser->index);
_xml_xmlchar_zval(prefix, 0, parser->target_encoding, &args[1]);
xml_call_handler(parser, &parser->endNamespaceDeclHandler, parser->endNamespaceDeclPtr, 2, args, &retval);
zval_ptr_dtor(&retval);
}
}
/* }}} */
/************************* EXTENSION FUNCTIONS *************************/