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var.c
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var.c
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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| 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: |
| http://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: Jani Lehtimäki <[email protected]> |
| Thies C. Arntzen <[email protected]> |
| Sascha Schumann <[email protected]> |
+----------------------------------------------------------------------+
*/
/* {{{ includes
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include "php.h"
#include "php_string.h"
#include "php_var.h"
#include "zend_smart_str.h"
#include "basic_functions.h"
#include "php_incomplete_class.h"
/* }}} */
struct php_serialize_data {
HashTable ht;
uint32_t n;
};
#define COMMON (is_ref ? "&" : "")
static void php_array_element_dump(zval *zv, zend_ulong index, zend_string *key, int level) /* {{{ */
{
if (key == NULL) { /* numeric key */
php_printf("%*c[" ZEND_LONG_FMT "]=>\n", level + 1, ' ', index);
} else { /* string key */
php_printf("%*c[\"", level + 1, ' ');
PHPWRITE(ZSTR_VAL(key), ZSTR_LEN(key));
php_printf("\"]=>\n");
}
php_var_dump(zv, level + 2);
}
/* }}} */
static void php_object_property_dump(zend_property_info *prop_info, zval *zv, zend_ulong index, zend_string *key, int level) /* {{{ */
{
const char *prop_name, *class_name;
if (key == NULL) { /* numeric key */
php_printf("%*c[" ZEND_LONG_FMT "]=>\n", level + 1, ' ', index);
} else { /* string key */
int unmangle = zend_unmangle_property_name(key, &class_name, &prop_name);
php_printf("%*c[", level + 1, ' ');
if (class_name && unmangle == SUCCESS) {
if (class_name[0] == '*') {
php_printf("\"%s\":protected", prop_name);
} else {
php_printf("\"%s\":\"%s\":private", prop_name, class_name);
}
} else {
php_printf("\"");
PHPWRITE(ZSTR_VAL(key), ZSTR_LEN(key));
php_printf("\"");
}
ZEND_PUTS("]=>\n");
}
if (Z_TYPE_P(zv) == IS_UNDEF) {
ZEND_ASSERT(prop_info->type);
php_printf("%*cuninitialized(%s%s)\n",
level + 1, ' ',
ZEND_TYPE_ALLOW_NULL(prop_info->type) ? "?" : "",
ZEND_TYPE_IS_CLASS(prop_info->type) ?
ZSTR_VAL(ZEND_TYPE_IS_CE(prop_info->type) ? ZEND_TYPE_CE(prop_info->type)->name : ZEND_TYPE_NAME(prop_info->type)) :
zend_get_type_by_const(ZEND_TYPE_CODE(prop_info->type)));
} else {
php_var_dump(zv, level + 2);
}
}
/* }}} */
PHPAPI void php_var_dump(zval *struc, int level) /* {{{ */
{
HashTable *myht;
zend_string *class_name;
int is_ref = 0;
zend_ulong num;
zend_string *key;
zval *val;
uint32_t count;
if (level > 1) {
php_printf("%*c", level - 1, ' ');
}
again:
switch (Z_TYPE_P(struc)) {
case IS_FALSE:
php_printf("%sbool(false)\n", COMMON);
break;
case IS_TRUE:
php_printf("%sbool(true)\n", COMMON);
break;
case IS_NULL:
php_printf("%sNULL\n", COMMON);
break;
case IS_LONG:
php_printf("%sint(" ZEND_LONG_FMT ")\n", COMMON, Z_LVAL_P(struc));
break;
case IS_DOUBLE:
php_printf("%sfloat(%.*G)\n", COMMON, (int) EG(precision), Z_DVAL_P(struc));
break;
case IS_STRING:
php_printf("%sstring(%zd) \"", COMMON, Z_STRLEN_P(struc));
PHPWRITE(Z_STRVAL_P(struc), Z_STRLEN_P(struc));
PUTS("\"\n");
break;
case IS_ARRAY:
myht = Z_ARRVAL_P(struc);
if (level > 1 && !(GC_FLAGS(myht) & GC_IMMUTABLE)) {
if (GC_IS_RECURSIVE(myht)) {
PUTS("*RECURSION*\n");
return;
}
GC_PROTECT_RECURSION(myht);
}
count = zend_array_count(myht);
php_printf("%sarray(%d) {\n", COMMON, count);
ZEND_HASH_FOREACH_KEY_VAL_IND(myht, num, key, val) {
php_array_element_dump(val, num, key, level);
} ZEND_HASH_FOREACH_END();
if (level > 1 && !(GC_FLAGS(myht) & GC_IMMUTABLE)) {
GC_UNPROTECT_RECURSION(myht);
}
if (level > 1) {
php_printf("%*c", level-1, ' ');
}
PUTS("}\n");
break;
case IS_OBJECT:
if (Z_IS_RECURSIVE_P(struc)) {
PUTS("*RECURSION*\n");
return;
}
Z_PROTECT_RECURSION_P(struc);
myht = zend_get_properties_for(struc, ZEND_PROP_PURPOSE_DEBUG);
class_name = Z_OBJ_HANDLER_P(struc, get_class_name)(Z_OBJ_P(struc));
php_printf("%sobject(%s)#%d (%d) {\n", COMMON, ZSTR_VAL(class_name), Z_OBJ_HANDLE_P(struc), myht ? zend_array_count(myht) : 0);
zend_string_release_ex(class_name, 0);
if (myht) {
zend_ulong num;
zend_string *key;
zval *val;
ZEND_HASH_FOREACH_KEY_VAL(myht, num, key, val) {
zend_property_info *prop_info = NULL;
if (Z_TYPE_P(val) == IS_INDIRECT) {
val = Z_INDIRECT_P(val);
if (key) {
prop_info = zend_get_typed_property_info_for_slot(Z_OBJ_P(struc), val);
}
}
if (!Z_ISUNDEF_P(val) || prop_info) {
php_object_property_dump(prop_info, val, num, key, level);
}
} ZEND_HASH_FOREACH_END();
zend_release_properties(myht);
}
if (level > 1) {
php_printf("%*c", level-1, ' ');
}
PUTS("}\n");
Z_UNPROTECT_RECURSION_P(struc);
break;
case IS_RESOURCE: {
const char *type_name = zend_rsrc_list_get_rsrc_type(Z_RES_P(struc));
php_printf("%sresource(%d) of type (%s)\n", COMMON, Z_RES_P(struc)->handle, type_name ? type_name : "Unknown");
break;
}
case IS_REFERENCE:
//??? hide references with refcount==1 (for compatibility)
if (Z_REFCOUNT_P(struc) > 1) {
is_ref = 1;
}
struc = Z_REFVAL_P(struc);
goto again;
break;
default:
php_printf("%sUNKNOWN:0\n", COMMON);
break;
}
}
/* }}} */
/* {{{ proto void var_dump(mixed var)
Dumps a string representation of variable to output */
PHP_FUNCTION(var_dump)
{
zval *args;
int argc;
int i;
ZEND_PARSE_PARAMETERS_START(1, -1)
Z_PARAM_VARIADIC('+', args, argc)
ZEND_PARSE_PARAMETERS_END();
for (i = 0; i < argc; i++) {
php_var_dump(&args[i], 1);
}
}
/* }}} */
static void zval_array_element_dump(zval *zv, zend_ulong index, zend_string *key, int level) /* {{{ */
{
if (key == NULL) { /* numeric key */
php_printf("%*c[" ZEND_LONG_FMT "]=>\n", level + 1, ' ', index);
} else { /* string key */
php_printf("%*c[\"", level + 1, ' ');
PHPWRITE(ZSTR_VAL(key), ZSTR_LEN(key));
php_printf("\"]=>\n");
}
php_debug_zval_dump(zv, level + 2);
}
/* }}} */
static void zval_object_property_dump(zend_property_info *prop_info, zval *zv, zend_ulong index, zend_string *key, int level) /* {{{ */
{
const char *prop_name, *class_name;
if (key == NULL) { /* numeric key */
php_printf("%*c[" ZEND_LONG_FMT "]=>\n", level + 1, ' ', index);
} else { /* string key */
zend_unmangle_property_name(key, &class_name, &prop_name);
php_printf("%*c[", level + 1, ' ');
if (class_name) {
if (class_name[0] == '*') {
php_printf("\"%s\":protected", prop_name);
} else {
php_printf("\"%s\":\"%s\":private", prop_name, class_name);
}
} else {
php_printf("\"%s\"", prop_name);
}
ZEND_PUTS("]=>\n");
}
if (prop_info && Z_TYPE_P(zv) == IS_UNDEF) {
ZEND_ASSERT(prop_info->type);
php_printf("%*cuninitialized(%s%s)\n",
level + 1, ' ',
ZEND_TYPE_ALLOW_NULL(prop_info->type) ? "?" : "",
ZEND_TYPE_IS_CLASS(prop_info->type) ?
ZSTR_VAL(ZEND_TYPE_IS_CE(prop_info->type) ? ZEND_TYPE_CE(prop_info->type)->name : ZEND_TYPE_NAME(prop_info->type)) :
zend_get_type_by_const(ZEND_TYPE_CODE(prop_info->type)));
} else {
php_debug_zval_dump(zv, level + 2);
}
}
/* }}} */
PHPAPI void php_debug_zval_dump(zval *struc, int level) /* {{{ */
{
HashTable *myht = NULL;
zend_string *class_name;
int is_ref = 0;
zend_ulong index;
zend_string *key;
zval *val;
uint32_t count;
if (level > 1) {
php_printf("%*c", level - 1, ' ');
}
again:
switch (Z_TYPE_P(struc)) {
case IS_FALSE:
php_printf("%sbool(false)\n", COMMON);
break;
case IS_TRUE:
php_printf("%sbool(true)\n", COMMON);
break;
case IS_NULL:
php_printf("%sNULL\n", COMMON);
break;
case IS_LONG:
php_printf("%sint(" ZEND_LONG_FMT ")\n", COMMON, Z_LVAL_P(struc));
break;
case IS_DOUBLE:
php_printf("%sfloat(%.*G)\n", COMMON, (int) EG(precision), Z_DVAL_P(struc));
break;
case IS_STRING:
php_printf("%sstring(%zd) \"", COMMON, Z_STRLEN_P(struc));
PHPWRITE(Z_STRVAL_P(struc), Z_STRLEN_P(struc));
php_printf("\" refcount(%u)\n", Z_REFCOUNTED_P(struc) ? Z_REFCOUNT_P(struc) : 1);
break;
case IS_ARRAY:
myht = Z_ARRVAL_P(struc);
if (level > 1 && !(GC_FLAGS(myht) & GC_IMMUTABLE)) {
if (GC_IS_RECURSIVE(myht)) {
PUTS("*RECURSION*\n");
return;
}
GC_PROTECT_RECURSION(myht);
}
count = zend_array_count(myht);
php_printf("%sarray(%d) refcount(%u){\n", COMMON, count, Z_REFCOUNTED_P(struc) ? Z_REFCOUNT_P(struc) : 1);
ZEND_HASH_FOREACH_KEY_VAL_IND(myht, index, key, val) {
zval_array_element_dump(val, index, key, level);
} ZEND_HASH_FOREACH_END();
if (level > 1 && !(GC_FLAGS(myht) & GC_IMMUTABLE)) {
GC_UNPROTECT_RECURSION(myht);
}
if (level > 1) {
php_printf("%*c", level - 1, ' ');
}
PUTS("}\n");
break;
case IS_OBJECT:
myht = zend_get_properties_for(struc, ZEND_PROP_PURPOSE_DEBUG);
if (myht) {
if (GC_IS_RECURSIVE(myht)) {
PUTS("*RECURSION*\n");
zend_release_properties(myht);
return;
}
GC_PROTECT_RECURSION(myht);
}
class_name = Z_OBJ_HANDLER_P(struc, get_class_name)(Z_OBJ_P(struc));
php_printf("%sobject(%s)#%d (%d) refcount(%u){\n", COMMON, ZSTR_VAL(class_name), Z_OBJ_HANDLE_P(struc), myht ? zend_array_count(myht) : 0, Z_REFCOUNT_P(struc));
zend_string_release_ex(class_name, 0);
if (myht) {
ZEND_HASH_FOREACH_KEY_VAL(myht, index, key, val) {
zend_property_info *prop_info = NULL;
if (Z_TYPE_P(val) == IS_INDIRECT) {
val = Z_INDIRECT_P(val);
if (key) {
prop_info = zend_get_typed_property_info_for_slot(Z_OBJ_P(struc), val);
}
}
if (!Z_ISUNDEF_P(val) || prop_info) {
zval_object_property_dump(prop_info, val, index, key, level);
}
} ZEND_HASH_FOREACH_END();
GC_UNPROTECT_RECURSION(myht);
zend_release_properties(myht);
}
if (level > 1) {
php_printf("%*c", level - 1, ' ');
}
PUTS("}\n");
break;
case IS_RESOURCE: {
const char *type_name = zend_rsrc_list_get_rsrc_type(Z_RES_P(struc));
php_printf("%sresource(%d) of type (%s) refcount(%u)\n", COMMON, Z_RES_P(struc)->handle, type_name ? type_name : "Unknown", Z_REFCOUNT_P(struc));
break;
}
case IS_REFERENCE:
//??? hide references with refcount==1 (for compatibility)
if (Z_REFCOUNT_P(struc) > 1) {
is_ref = 1;
}
struc = Z_REFVAL_P(struc);
goto again;
default:
php_printf("%sUNKNOWN:0\n", COMMON);
break;
}
}
/* }}} */
/* {{{ proto void debug_zval_dump(mixed var)
Dumps a string representation of an internal zend value to output. */
PHP_FUNCTION(debug_zval_dump)
{
zval *args;
int argc;
int i;
ZEND_PARSE_PARAMETERS_START(1, -1)
Z_PARAM_VARIADIC('+', args, argc)
ZEND_PARSE_PARAMETERS_END();
for (i = 0; i < argc; i++) {
php_debug_zval_dump(&args[i], 1);
}
}
/* }}} */
#define buffer_append_spaces(buf, num_spaces) \
do { \
char *tmp_spaces; \
size_t tmp_spaces_len; \
tmp_spaces_len = spprintf(&tmp_spaces, 0,"%*c", num_spaces, ' '); \
smart_str_appendl(buf, tmp_spaces, tmp_spaces_len); \
efree(tmp_spaces); \
} while(0);
static void php_array_element_export(zval *zv, zend_ulong index, zend_string *key, int level, smart_str *buf) /* {{{ */
{
if (key == NULL) { /* numeric key */
buffer_append_spaces(buf, level+1);
smart_str_append_long(buf, (zend_long) index);
smart_str_appendl(buf, " => ", 4);
} else { /* string key */
zend_string *tmp_str;
zend_string *ckey = php_addcslashes(key, "'\\", 2);
tmp_str = php_str_to_str(ZSTR_VAL(ckey), ZSTR_LEN(ckey), "\0", 1, "' . \"\\0\" . '", 12);
buffer_append_spaces(buf, level + 1);
smart_str_appendc(buf, '\'');
smart_str_append(buf, tmp_str);
smart_str_appendl(buf, "' => ", 5);
zend_string_free(ckey);
zend_string_free(tmp_str);
}
php_var_export_ex(zv, level + 2, buf);
smart_str_appendc(buf, ',');
smart_str_appendc(buf, '\n');
}
/* }}} */
static void php_object_element_export(zval *zv, zend_ulong index, zend_string *key, int level, smart_str *buf) /* {{{ */
{
buffer_append_spaces(buf, level + 2);
if (key != NULL) {
const char *class_name, *prop_name;
size_t prop_name_len;
zend_string *pname_esc;
zend_unmangle_property_name_ex(key, &class_name, &prop_name, &prop_name_len);
pname_esc = php_addcslashes_str(prop_name, prop_name_len, "'\\", 2);
smart_str_appendc(buf, '\'');
smart_str_append(buf, pname_esc);
smart_str_appendc(buf, '\'');
zend_string_release_ex(pname_esc, 0);
} else {
smart_str_append_long(buf, (zend_long) index);
}
smart_str_appendl(buf, " => ", 4);
php_var_export_ex(zv, level + 2, buf);
smart_str_appendc(buf, ',');
smart_str_appendc(buf, '\n');
}
/* }}} */
PHPAPI void php_var_export_ex(zval *struc, int level, smart_str *buf) /* {{{ */
{
HashTable *myht;
char tmp_str[PHP_DOUBLE_MAX_LENGTH];
zend_string *ztmp, *ztmp2;
zend_ulong index;
zend_string *key;
zval *val;
again:
switch (Z_TYPE_P(struc)) {
case IS_FALSE:
smart_str_appendl(buf, "false", 5);
break;
case IS_TRUE:
smart_str_appendl(buf, "true", 4);
break;
case IS_NULL:
smart_str_appendl(buf, "NULL", 4);
break;
case IS_LONG:
/* INT_MIN as a literal will be parsed as a float. Emit something like
* -9223372036854775807-1 to avoid this. */
if (Z_LVAL_P(struc) == ZEND_LONG_MIN) {
smart_str_append_long(buf, ZEND_LONG_MIN+1);
smart_str_appends(buf, "-1");
break;
}
smart_str_append_long(buf, Z_LVAL_P(struc));
break;
case IS_DOUBLE:
php_gcvt(Z_DVAL_P(struc), (int)PG(serialize_precision), '.', 'E', tmp_str);
smart_str_appends(buf, tmp_str);
/* Without a decimal point, PHP treats a number literal as an int.
* This check even works for scientific notation, because the
* mantissa always contains a decimal point.
* We need to check for finiteness, because INF, -INF and NAN
* must not have a decimal point added.
*/
if (zend_finite(Z_DVAL_P(struc)) && NULL == strchr(tmp_str, '.')) {
smart_str_appendl(buf, ".0", 2);
}
break;
case IS_STRING:
ztmp = php_addcslashes(Z_STR_P(struc), "'\\", 2);
ztmp2 = php_str_to_str(ZSTR_VAL(ztmp), ZSTR_LEN(ztmp), "\0", 1, "' . \"\\0\" . '", 12);
smart_str_appendc(buf, '\'');
smart_str_append(buf, ztmp2);
smart_str_appendc(buf, '\'');
zend_string_free(ztmp);
zend_string_free(ztmp2);
break;
case IS_ARRAY:
myht = Z_ARRVAL_P(struc);
if (!(GC_FLAGS(myht) & GC_IMMUTABLE)) {
if (GC_IS_RECURSIVE(myht)) {
smart_str_appendl(buf, "NULL", 4);
zend_error(E_WARNING, "var_export does not handle circular references");
return;
}
GC_PROTECT_RECURSION(myht);
}
if (level > 1) {
smart_str_appendc(buf, '\n');
buffer_append_spaces(buf, level - 1);
}
smart_str_appendl(buf, "array (\n", 8);
ZEND_HASH_FOREACH_KEY_VAL_IND(myht, index, key, val) {
php_array_element_export(val, index, key, level, buf);
} ZEND_HASH_FOREACH_END();
if (!(GC_FLAGS(myht) & GC_IMMUTABLE)) {
GC_UNPROTECT_RECURSION(myht);
}
if (level > 1) {
buffer_append_spaces(buf, level - 1);
}
smart_str_appendc(buf, ')');
break;
case IS_OBJECT:
myht = zend_get_properties_for(struc, ZEND_PROP_PURPOSE_VAR_EXPORT);
if (myht) {
if (GC_IS_RECURSIVE(myht)) {
smart_str_appendl(buf, "NULL", 4);
zend_error(E_WARNING, "var_export does not handle circular references");
zend_release_properties(myht);
return;
} else {
GC_PROTECT_RECURSION(myht);
}
}
if (level > 1) {
smart_str_appendc(buf, '\n');
buffer_append_spaces(buf, level - 1);
}
/* stdClass has no __set_state method, but can be casted to */
if (Z_OBJCE_P(struc) == zend_standard_class_def) {
smart_str_appendl(buf, "(object) array(\n", 16);
} else {
smart_str_append(buf, Z_OBJCE_P(struc)->name);
smart_str_appendl(buf, "::__set_state(array(\n", 21);
}
if (myht) {
ZEND_HASH_FOREACH_KEY_VAL_IND(myht, index, key, val) {
php_object_element_export(val, index, key, level, buf);
} ZEND_HASH_FOREACH_END();
GC_UNPROTECT_RECURSION(myht);
zend_release_properties(myht);
}
if (level > 1) {
buffer_append_spaces(buf, level - 1);
}
if (Z_OBJCE_P(struc) == zend_standard_class_def) {
smart_str_appendc(buf, ')');
} else {
smart_str_appendl(buf, "))", 2);
}
break;
case IS_REFERENCE:
struc = Z_REFVAL_P(struc);
goto again;
break;
default:
smart_str_appendl(buf, "NULL", 4);
break;
}
}
/* }}} */
/* FOR BC reasons, this will always perform and then print */
PHPAPI void php_var_export(zval *struc, int level) /* {{{ */
{
smart_str buf = {0};
php_var_export_ex(struc, level, &buf);
smart_str_0(&buf);
PHPWRITE(ZSTR_VAL(buf.s), ZSTR_LEN(buf.s));
smart_str_free(&buf);
}
/* }}} */
/* {{{ proto mixed var_export(mixed var [, bool return])
Outputs or returns a string representation of a variable */
PHP_FUNCTION(var_export)
{
zval *var;
zend_bool return_output = 0;
smart_str buf = {0};
ZEND_PARSE_PARAMETERS_START(1, 2)
Z_PARAM_ZVAL(var)
Z_PARAM_OPTIONAL
Z_PARAM_BOOL(return_output)
ZEND_PARSE_PARAMETERS_END();
php_var_export_ex(var, 1, &buf);
smart_str_0 (&buf);
if (return_output) {
RETURN_NEW_STR(buf.s);
} else {
PHPWRITE(ZSTR_VAL(buf.s), ZSTR_LEN(buf.s));
smart_str_free(&buf);
}
}
/* }}} */
static void php_var_serialize_intern(smart_str *buf, zval *struc, php_serialize_data_t var_hash);
static inline zend_long php_add_var_hash(php_serialize_data_t data, zval *var) /* {{{ */
{
zval *zv;
zend_ulong key;
zend_bool is_ref = Z_ISREF_P(var);
data->n += 1;
if (!is_ref && Z_TYPE_P(var) != IS_OBJECT) {
return 0;
}
/* References to objects are treated as if the reference didn't exist */
if (is_ref && Z_TYPE_P(Z_REFVAL_P(var)) == IS_OBJECT) {
var = Z_REFVAL_P(var);
}
/* Index for the variable is stored using the numeric value of the pointer to
* the zend_refcounted struct */
key = (zend_ulong) (zend_uintptr_t) Z_COUNTED_P(var);
zv = zend_hash_index_find(&data->ht, key);
if (zv) {
/* References are only counted once, undo the data->n increment above */
if (is_ref) {
data->n -= 1;
}
return Z_LVAL_P(zv);
} else {
zval zv_n;
ZVAL_LONG(&zv_n, data->n);
zend_hash_index_add_new(&data->ht, key, &zv_n);
/* Additionally to the index, we also store the variable, to ensure that it is
* not destroyed during serialization and its pointer reused. The variable is
* stored at the numeric value of the pointer + 1, which cannot be the location
* of another zend_refcounted structure. */
zend_hash_index_add_new(&data->ht, key + 1, var);
Z_ADDREF_P(var);
return 0;
}
}
/* }}} */
static inline void php_var_serialize_long(smart_str *buf, zend_long val) /* {{{ */
{
smart_str_appendl(buf, "i:", 2);
smart_str_append_long(buf, val);
smart_str_appendc(buf, ';');
}
/* }}} */
static inline void php_var_serialize_string(smart_str *buf, char *str, size_t len) /* {{{ */
{
smart_str_appendl(buf, "s:", 2);
smart_str_append_unsigned(buf, len);
smart_str_appendl(buf, ":\"", 2);
smart_str_appendl(buf, str, len);
smart_str_appendl(buf, "\";", 2);
}
/* }}} */
static inline zend_bool php_var_serialize_class_name(smart_str *buf, zval *struc) /* {{{ */
{
PHP_CLASS_ATTRIBUTES;
PHP_SET_CLASS_ATTRIBUTES(struc);
smart_str_appendl(buf, "O:", 2);
smart_str_append_unsigned(buf, ZSTR_LEN(class_name));
smart_str_appendl(buf, ":\"", 2);
smart_str_append(buf, class_name);
smart_str_appendl(buf, "\":", 2);
PHP_CLEANUP_CLASS_ATTRIBUTES();
return incomplete_class;
}
/* }}} */
static int php_var_serialize_call_sleep(zval *retval, zval *struc) /* {{{ */
{
zval fname;
int res;
ZVAL_STRINGL(&fname, "__sleep", sizeof("__sleep") - 1);
BG(serialize_lock)++;
res = call_user_function(NULL, struc, &fname, retval, 0, 0);
BG(serialize_lock)--;
zval_ptr_dtor_str(&fname);
if (res == FAILURE || Z_ISUNDEF_P(retval)) {
zval_ptr_dtor(retval);
return FAILURE;
}
if (!HASH_OF(retval)) {
zval_ptr_dtor(retval);
php_error_docref(NULL, E_NOTICE, "__sleep should return an array only containing the names of instance-variables to serialize");
return FAILURE;
}
return SUCCESS;
}
/* }}} */
static int php_var_serialize_call_magic_serialize(zval *retval, zval *obj) /* {{{ */
{
zval fname;
int res;
ZVAL_STRINGL(&fname, "__serialize", sizeof("__serialize") - 1);
BG(serialize_lock)++;
res = call_user_function(CG(function_table), obj, &fname, retval, 0, 0);
BG(serialize_lock)--;
zval_ptr_dtor_str(&fname);
if (res == FAILURE || Z_ISUNDEF_P(retval)) {
zval_ptr_dtor(retval);
return FAILURE;
}
if (Z_TYPE_P(retval) != IS_ARRAY) {
zval_ptr_dtor(retval);
zend_type_error("%s::__serialize() must return an array", ZSTR_VAL(Z_OBJCE_P(obj)->name));
return FAILURE;
}
return SUCCESS;
}
/* }}} */
static void php_var_serialize_collect_names(HashTable *ht, HashTable *src) /* {{{ */
{
zval *val;
zend_string *name, *tmp_name;
zend_hash_init(ht, zend_hash_num_elements(src), NULL, NULL, 0);
ZEND_HASH_FOREACH_VAL(src, val) {
if (Z_TYPE_P(val) != IS_STRING) {
php_error_docref(NULL, E_NOTICE,
"__sleep should return an array only containing the names of instance-variables to serialize.");
}
name = zval_get_tmp_string(val, &tmp_name);
if (zend_hash_exists(ht, name)) {
php_error_docref(NULL, E_NOTICE,
"\"%s\" is returned from __sleep multiple times", ZSTR_VAL(name));
zend_tmp_string_release(tmp_name);
continue;
}
zend_hash_add_empty_element(ht, name);
zend_tmp_string_release(tmp_name);
} ZEND_HASH_FOREACH_END();
}
/* }}} */
static void php_var_serialize_class(smart_str *buf, zval *struc, zval *retval_ptr, php_serialize_data_t var_hash) /* {{{ */
{
zend_class_entry *ce = Z_OBJCE_P(struc);
HashTable names, *propers;
zval nval;
zend_string *name;
php_var_serialize_class_name(buf, struc);
php_var_serialize_collect_names(&names, HASH_OF(retval_ptr));
smart_str_append_unsigned(buf, zend_hash_num_elements(&names));
smart_str_appendl(buf, ":{", 2);
ZVAL_NULL(&nval);
propers = zend_get_properties_for(struc, ZEND_PROP_PURPOSE_SERIALIZE);
ZEND_HASH_FOREACH_STR_KEY(&names, name) {
zend_string *prot_name, *priv_name;
zval *val = zend_hash_find_ex(propers, name, 1);
if (val != NULL) {
if (Z_TYPE_P(val) == IS_INDIRECT) {
val = Z_INDIRECT_P(val);
if (Z_TYPE_P(val) == IS_UNDEF) {
goto undef_prop;
}
}
php_var_serialize_string(buf, ZSTR_VAL(name), ZSTR_LEN(name));
php_var_serialize_intern(buf, val, var_hash);
continue;
}
priv_name = zend_mangle_property_name(
ZSTR_VAL(ce->name), ZSTR_LEN(ce->name), ZSTR_VAL(name), ZSTR_LEN(name), 0);
val = zend_hash_find(propers, priv_name);
if (val != NULL) {
if (Z_TYPE_P(val) == IS_INDIRECT) {
val = Z_INDIRECT_P(val);
if (Z_ISUNDEF_P(val)) {
zend_string_free(priv_name);
goto undef_prop;
}
}
php_var_serialize_string(buf, ZSTR_VAL(priv_name), ZSTR_LEN(priv_name));
zend_string_free(priv_name);
php_var_serialize_intern(buf, val, var_hash);
continue;
}
zend_string_free(priv_name);
prot_name = zend_mangle_property_name(
"*", 1, ZSTR_VAL(name), ZSTR_LEN(name), 0);
val = zend_hash_find(propers, prot_name);
if (val != NULL) {
if (Z_TYPE_P(val) == IS_INDIRECT) {
val = Z_INDIRECT_P(val);
if (Z_TYPE_P(val) == IS_UNDEF) {
zend_string_free(prot_name);
goto undef_prop;
}
}
php_var_serialize_string(buf, ZSTR_VAL(prot_name), ZSTR_LEN(prot_name));
zend_string_free(prot_name);
php_var_serialize_intern(buf, val, var_hash);
continue;
}
zend_string_free(prot_name);
undef_prop:
php_var_serialize_string(buf, ZSTR_VAL(name), ZSTR_LEN(name));
php_var_serialize_intern(buf, &nval, var_hash);
php_error_docref(NULL, E_NOTICE,
"\"%s\" returned as member variable from __sleep() but does not exist", ZSTR_VAL(name));
} ZEND_HASH_FOREACH_END();
smart_str_appendc(buf, '}');
zend_hash_destroy(&names);
zend_release_properties(propers);
}
/* }}} */
static void php_var_serialize_intern(smart_str *buf, zval *struc, php_serialize_data_t var_hash) /* {{{ */
{
zend_long var_already;
HashTable *myht;
if (EG(exception)) {
return;
}
if (var_hash && (var_already = php_add_var_hash(var_hash, struc))) {
if (var_already == -1) {
/* Reference to an object that failed to serialize, replace with null. */
smart_str_appendl(buf, "N;", 2);
return;
} else if (Z_ISREF_P(struc)) {
smart_str_appendl(buf, "R:", 2);
smart_str_append_long(buf, var_already);
smart_str_appendc(buf, ';');
return;
} else if (Z_TYPE_P(struc) == IS_OBJECT) {
smart_str_appendl(buf, "r:", 2);
smart_str_append_long(buf, var_already);
smart_str_appendc(buf, ';');
return;
}
}
again:
switch (Z_TYPE_P(struc)) {
case IS_FALSE:
smart_str_appendl(buf, "b:0;", 4);
return;
case IS_TRUE:
smart_str_appendl(buf, "b:1;", 4);
return;
case IS_NULL:
smart_str_appendl(buf, "N;", 2);
return;
case IS_LONG:
php_var_serialize_long(buf, Z_LVAL_P(struc));
return;
case IS_DOUBLE: {
char tmp_str[PHP_DOUBLE_MAX_LENGTH];
smart_str_appendl(buf, "d:", 2);
php_gcvt(Z_DVAL_P(struc), (int)PG(serialize_precision), '.', 'E', tmp_str);
smart_str_appends(buf, tmp_str);
smart_str_appendc(buf, ';');
return;
}
case IS_STRING:
php_var_serialize_string(buf, Z_STRVAL_P(struc), Z_STRLEN_P(struc));
return;
case IS_OBJECT: {
zend_class_entry *ce = Z_OBJCE_P(struc);
if (zend_hash_str_exists(&ce->function_table, "__serialize", sizeof("__serialize")-1)) {
zval retval, obj;
zend_string *key;
zval *data;
zend_ulong index;
Z_ADDREF_P(struc);
ZVAL_OBJ(&obj, Z_OBJ_P(struc));
if (php_var_serialize_call_magic_serialize(&retval, &obj) == FAILURE) {
if (!EG(exception)) {
smart_str_appendl(buf, "N;", 2);
}
zval_ptr_dtor(&obj);
return;
}
php_var_serialize_class_name(buf, &obj);
smart_str_append_unsigned(buf, zend_array_count(Z_ARRVAL(retval)));
smart_str_appendl(buf, ":{", 2);
ZEND_HASH_FOREACH_KEY_VAL_IND(Z_ARRVAL(retval), index, key, data) {
if (!key) {
php_var_serialize_long(buf, index);
} else {
php_var_serialize_string(buf, ZSTR_VAL(key), ZSTR_LEN(key));
}
if (Z_ISREF_P(data) && Z_REFCOUNT_P(data) == 1) {
data = Z_REFVAL_P(data);
}
php_var_serialize_intern(buf, data, var_hash);
} ZEND_HASH_FOREACH_END();
smart_str_appendc(buf, '}');
zval_ptr_dtor(&obj);
zval_ptr_dtor(&retval);
return;
}
if (ce->serialize != NULL) {
/* has custom handler */
unsigned char *serialized_data = NULL;
size_t serialized_length;
if (ce->serialize(struc, &serialized_data, &serialized_length, (zend_serialize_data *)var_hash) == SUCCESS) {
smart_str_appendl(buf, "C:", 2);
smart_str_append_unsigned(buf, ZSTR_LEN(Z_OBJCE_P(struc)->name));
smart_str_appendl(buf, ":\"", 2);
smart_str_append(buf, Z_OBJCE_P(struc)->name);
smart_str_appendl(buf, "\":", 2);
smart_str_append_unsigned(buf, serialized_length);
smart_str_appendl(buf, ":{", 2);
smart_str_appendl(buf, (char *) serialized_data, serialized_length);
smart_str_appendc(buf, '}');
} else {
/* Mark this value in the var_hash, to avoid creating references to it. */
zval *var_idx = zend_hash_index_find(&var_hash->ht,