msgpack/php/msgpack_unpack.c at java-0.5.1 · WanderWalker/msgpack · GitHub

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#include "php.h"

#include "php_ini.h"

#include "ext/standard/php_incomplete_class.h"

#include "php_msgpack.h"

#include "msgpack_pack.h"

#include "msgpack_unpack.h"

#if (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION < 3)

# define Z_ADDREF_PP(ppz) ZVAL_ADDREF(*(ppz))

# define Z_SET_ISREF_PP(ppz) (*(ppz))->is_ref = 1

# define Z_UNSET_ISREF_PP(ppz) (*(ppz))->is_ref = 0

#endif

#define VAR_ENTRIES_MAX 1024

typedef struct

{

zval *data[VAR_ENTRIES_MAX];

long used_slots;

long value_slots;

long access_slots[VAR_ENTRIES_MAX];

bool alloc_slots[VAR_ENTRIES_MAX];

void *next;

} var_entries;

#define MSGPACK_UNSERIALIZE_ALLOC(_unpack) \

if (_unpack->deps <= 0) { \

*obj = _unpack->retval; \

msgpack_var_push(_unpack->var_hash, obj, true, false); \

} else { \

ALLOC_INIT_ZVAL(*obj); \

msgpack_var_push(_unpack->var_hash, obj, false, true); \

}

#define MSGPACK_UNSERIALIZE_ALLOC_VALUE(_unpack) \

if (_unpack->deps <= 0) { \

*obj = _unpack->retval; \

msgpack_var_push(_unpack->var_hash, obj, true, false); \

} else { \

ALLOC_INIT_ZVAL(*obj); \

msgpack_var_push(_unpack->var_hash, obj, true, true); \

}

#define MSGPACK_UNSERIALIZE_PUSH_ITEM(_unpack, _count, _val) \

msgpack_var_alloc(_unpack->var_hash, _count); \

if (Z_TYPE_P(_val) != IS_ARRAY && Z_TYPE_P(_val) != IS_OBJECT) { \

msgpack_var_push(_unpack->var_hash, &_val, true, false); \

}

#define MSGPACK_UNSERIALIZE_FINISH_ITEM(_unpack) \

long deps = _unpack->deps - 1; \

_unpack->stack[deps]--; \

if (_unpack->stack[deps] == 0) { \

_unpack->deps--; \

}

#define MSGPACK_UNSERIALIZE_FINISH_MAP_ITEM(_unpack, _key, _val) \

zval_ptr_dtor(&_key); \

zval_ptr_dtor(&_val); \

msgpack_var_alloc(_unpack->var_hash, 2); \

MSGPACK_UNSERIALIZE_FINISH_ITEM(_unpack);

inline static void msgpack_var_push(

php_unserialize_data_t *var_hashx, zval **rval, bool value, bool alloc)

{

var_entries *var_hash, *prev = NULL;

if (!var_hashx)

{

return;

}

var_hash = var_hashx->first;

while (var_hash && var_hash->used_slots == VAR_ENTRIES_MAX)

{

prev = var_hash;

var_hash = var_hash->next;

}

if (!var_hash)

{

var_hash = emalloc(sizeof(var_entries));

var_hash->used_slots = 0;

var_hash->value_slots = 0;

var_hash->next = 0;

if (!var_hashx->first)

{

var_hashx->first = var_hash;

}

else

{

prev->next = var_hash;

}

var_hash->alloc_slots[var_hash->used_slots] = alloc;

if (value)

{

var_hash->access_slots[var_hash->value_slots++] = var_hash->used_slots;

}

var_hash->data[var_hash->used_slots++] = *rval;

}

inline static void msgpack_var_alloc(

php_unserialize_data_t *var_hashx, long count)

{

long i;

var_entries *var_hash = var_hashx->first;

while (var_hash && var_hash->used_slots == VAR_ENTRIES_MAX)

{

var_hash = var_hash->next;

}

if (!var_hash || count <= 0)

{

return;

}

for (i = var_hash->used_slots - 1; i >= 0; i--)

{

if (var_hash->alloc_slots[i])

{

var_hash->alloc_slots[i] = false;

if (--count <= 0)

{

break;

}

inline static int msgpack_var_access(

php_unserialize_data_t *var_hashx, long id, zval ***store)

{

var_entries *var_hash = var_hashx->first;

while (id >= VAR_ENTRIES_MAX &&

var_hash && var_hash->used_slots == VAR_ENTRIES_MAX)

{

var_hash = var_hash->next;

id -= VAR_ENTRIES_MAX;

}

if (!var_hash)

{

return !SUCCESS;

}

if (id < 0 || id >= var_hash->value_slots)

{

return !SUCCESS;

}

id = var_hash->access_slots[id];

if (id < 0 || id >= var_hash->used_slots)

{

return !SUCCESS;

}

*store = &var_hash->data[id];

return SUCCESS;

}

inline static zend_class_entry* msgpack_unserialize_class(

zval **container, char *class_name, size_t name_len)

{

zend_class_entry *ce, **pce;

bool incomplete_class = false;

zval *user_func, *retval_ptr, **args[1], *arg_func_name;

TSRMLS_FETCH();

{

/* Try to find class directly */

if (zend_lookup_class(class_name, name_len, &pce TSRMLS_CC) == SUCCESS)

{

ce = *pce;

break;

}

/* Check for unserialize callback */

if ((PG(unserialize_callback_func) == NULL) ||

(PG(unserialize_callback_func)[0] == '\0'))

{

incomplete_class = 1;

ce = PHP_IC_ENTRY;

break;

}

/* Call unserialize callback */

ALLOC_INIT_ZVAL(user_func);

ZVAL_STRING(user_func, PG(unserialize_callback_func), 1);

args[0] = &arg_func_name;

ALLOC_INIT_ZVAL(arg_func_name);

ZVAL_STRING(arg_func_name, class_name, 1);

if (call_user_function_ex(

CG(function_table), NULL, user_func, &retval_ptr,

1, args, 0, NULL TSRMLS_CC) != SUCCESS)

{

if (MSGPACK_G(error_display))

{

zend_error(E_WARNING,

"[msgpack] (msgpack_unserialize_class) "

"defined (%s) but not found", class_name);

}

incomplete_class = 1;

ce = PHP_IC_ENTRY;

zval_ptr_dtor(&user_func);

zval_ptr_dtor(&arg_func_name);

break;

}

if (retval_ptr)

{

zval_ptr_dtor(&retval_ptr);

}

/* The callback function may have defined the class */

if (zend_lookup_class(class_name, name_len, &pce TSRMLS_CC) == SUCCESS)

{

ce = *pce;

}

else

{

if (MSGPACK_G(error_display))

{

zend_error(E_WARNING,

"[msgpack] (msgpack_unserialize_class) "

"Function %s() hasn't defined the class "

"it was called for", class_name);

}

incomplete_class = true;

ce = PHP_IC_ENTRY;

}

zval_ptr_dtor(&user_func);

zval_ptr_dtor(&arg_func_name);

}

while(0);

if (EG(exception))

{

if (MSGPACK_G(error_display))

{

zend_error(E_WARNING,

"[msgpack] (msgpack_unserialize_class) "

"Exception error");

}

return NULL;

}

object_init_ex(*container, ce);

/* store incomplete class name */

if (incomplete_class)

{

php_store_class_name(*container, class_name, name_len);

}

return ce;

}

void msgpack_unserialize_var_init(php_unserialize_data_t *var_hashx)

{

var_hashx->first = 0;

var_hashx->first_dtor = 0;

}

void msgpack_unserialize_var_destroy(php_unserialize_data_t *var_hashx)

{

void *next;

long i;

var_entries *var_hash = var_hashx->first;

while (var_hash)

{

for (i = 0; i < var_hash->used_slots; i++)

{

if (var_hash->alloc_slots[i] && var_hash->data[i])

{

zval_ptr_dtor(&var_hash->data[i]);

}

next = var_hash->next;

efree(var_hash);

var_hash = next;

}

var_hash = var_hashx->first_dtor;

while (var_hash)

{

for (i = 0; i < var_hash->used_slots; i++)

{

zval_ptr_dtor(&var_hash->data[i]);

}

next = var_hash->next;

efree(var_hash);

var_hash = next;

}

void msgpack_unserialize_init(msgpack_unserialize_data *unpack)

{

unpack->deps = 0;

unpack->type = MSGPACK_SERIALIZE_TYPE_NONE;

}

int msgpack_unserialize_uint8(

msgpack_unserialize_data *unpack, uint8_t data, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC(unpack);

ZVAL_LONG(*obj, data);

return 0;

}

int msgpack_unserialize_uint16(

msgpack_unserialize_data *unpack, uint16_t data, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC(unpack);

ZVAL_LONG(*obj, data);

return 0;

}

int msgpack_unserialize_uint32(

msgpack_unserialize_data *unpack, uint32_t data, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC(unpack);

ZVAL_LONG(*obj, data);

return 0;

}

int msgpack_unserialize_uint64(

msgpack_unserialize_data *unpack, uint64_t data, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC(unpack);

ZVAL_LONG(*obj, data);

return 0;

}

int msgpack_unserialize_int8(

msgpack_unserialize_data *unpack, int8_t data, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC(unpack);

ZVAL_LONG(*obj, data);

return 0;

}

int msgpack_unserialize_int16(

msgpack_unserialize_data *unpack, int16_t data, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC(unpack);

ZVAL_LONG(*obj, data);

return 0;

}

int msgpack_unserialize_int32(

msgpack_unserialize_data *unpack, int32_t data, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC(unpack);

ZVAL_LONG(*obj, data);

return 0;

}

int msgpack_unserialize_int64(

msgpack_unserialize_data *unpack, int64_t data, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC(unpack);

ZVAL_LONG(*obj, data);

return 0;

}

int msgpack_unserialize_float(

msgpack_unserialize_data *unpack, float data, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC(unpack);

ZVAL_DOUBLE(*obj, data);

return 0;

}

int msgpack_unserialize_double(

msgpack_unserialize_data *unpack, double data, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC(unpack);

ZVAL_DOUBLE(*obj, data);

return 0;

}

int msgpack_unserialize_nil(msgpack_unserialize_data *unpack, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC(unpack);

ZVAL_NULL(*obj);

return 0;

}

int msgpack_unserialize_true(msgpack_unserialize_data *unpack, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC(unpack);

ZVAL_BOOL(*obj, 1);

return 0;

}

int msgpack_unserialize_false(msgpack_unserialize_data *unpack, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC(unpack);

ZVAL_BOOL(*obj, 0);

return 0;

}

int msgpack_unserialize_raw(

msgpack_unserialize_data *unpack, const char* base,

const char* data, unsigned int len, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC(unpack);

if (len == 0)

{

ZVAL_STRINGL(*obj, "", 0, 1);

}

else

{

ZVAL_STRINGL(*obj, data, len, 1);

}

return 0;

}

int msgpack_unserialize_array(

msgpack_unserialize_data *unpack, unsigned int count, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC_VALUE(unpack);

array_init(*obj);

unpack->stack[unpack->deps++] = count;

return 0;

}

int msgpack_unserialize_array_item(

msgpack_unserialize_data *unpack, zval **container, zval *obj)

{

MSGPACK_UNSERIALIZE_PUSH_ITEM(unpack, 1, obj);

add_next_index_zval(*container, obj);

MSGPACK_UNSERIALIZE_FINISH_ITEM(unpack);

return 0;

}

int msgpack_unserialize_map(

msgpack_unserialize_data *unpack, unsigned int count, zval **obj)

{

MSGPACK_UNSERIALIZE_ALLOC_VALUE(unpack);

unpack->stack[unpack->deps++] = count;

unpack->type = MSGPACK_SERIALIZE_TYPE_NONE;

return 0;

}

int msgpack_unserialize_map_item(

msgpack_unserialize_data *unpack, zval **container, zval *key, zval *val)

{

TSRMLS_FETCH();

if (MSGPACK_G(php_only))

{

if (Z_TYPE_P(key) == IS_NULL)

{

unpack->type = MSGPACK_SERIALIZE_TYPE_NONE;

if (Z_TYPE_P(val) == IS_LONG)

{

switch (Z_LVAL_P(val))

{

case MSGPACK_SERIALIZE_TYPE_REFERENCE:

Z_SET_ISREF_PP(container);

break;

case MSGPACK_SERIALIZE_TYPE_RECURSIVE:

unpack->type = MSGPACK_SERIALIZE_TYPE_RECURSIVE;

break;

case MSGPACK_SERIALIZE_TYPE_CUSTOM_OBJECT:

unpack->type = MSGPACK_SERIALIZE_TYPE_CUSTOM_OBJECT;

break;

default:

break;

}

else if (Z_TYPE_P(val) == IS_STRING)

{

zend_class_entry *ce = msgpack_unserialize_class(

container, Z_STRVAL_P(val), Z_STRLEN_P(val));

if (ce == NULL)

{

MSGPACK_UNSERIALIZE_FINISH_MAP_ITEM(unpack, key, val);

return 0;

}

MSGPACK_UNSERIALIZE_FINISH_MAP_ITEM(unpack, key, val);

return 0;

}

else if (unpack->type == MSGPACK_SERIALIZE_TYPE_CUSTOM_OBJECT)

{

unpack->type = MSGPACK_SERIALIZE_TYPE_NONE;

zend_class_entry *ce = msgpack_unserialize_class(

container, Z_STRVAL_P(key), Z_STRLEN_P(key));

if (ce == NULL)

{

MSGPACK_UNSERIALIZE_FINISH_MAP_ITEM(unpack, key, val);

return 0;

}

/* implementing Serializable */

if (ce->unserialize == NULL)

{

if (MSGPACK_G(error_display))

{

zend_error(E_WARNING,

"[msgpack] (msgpack_unserialize_map_item) "

"Class %s has no unserializer", ce->name);

}

MSGPACK_UNSERIALIZE_FINISH_MAP_ITEM(unpack, key, val);

return 0;

}

ce->unserialize(

container, ce,

(const unsigned char *)Z_STRVAL_P(val), Z_STRLEN_P(val) + 1,

NULL TSRMLS_CC);

MSGPACK_UNSERIALIZE_FINISH_MAP_ITEM(unpack, key, val);

return 0;

}

else if (unpack->type == MSGPACK_SERIALIZE_TYPE_RECURSIVE)

{

zval **rval;

unpack->type = MSGPACK_SERIALIZE_TYPE_NONE;

if (msgpack_var_access(

unpack->var_hash, Z_LVAL_P(val) - 1, &rval) != SUCCESS)

{

if (MSGPACK_G(error_display))

{

zend_error(E_WARNING,

"[msgpack] (msgpack_unserialize_map_item) "

"Invalid references value: %ld",

Z_LVAL_P(val) - 1);

}

MSGPACK_UNSERIALIZE_FINISH_MAP_ITEM(unpack, key, val);

return 0;

}

if (container != NULL)

{

zval_ptr_dtor(container);

}

*container = *rval;

Z_ADDREF_PP(container);

MSGPACK_UNSERIALIZE_FINISH_MAP_ITEM(unpack, key, val);

return 0;

}

MSGPACK_UNSERIALIZE_PUSH_ITEM(unpack, 2, val);

if (Z_TYPE_PP(container) != IS_ARRAY && Z_TYPE_PP(container) != IS_OBJECT)

{

array_init(*container);

}

switch (Z_TYPE_P(key))

{

case IS_LONG:

if (zend_hash_index_update(

HASH_OF(*container), Z_LVAL_P(key), &val,

sizeof(val), NULL) == FAILURE)

{

zval_ptr_dtor(&val);

if (MSGPACK_G(error_display))

{

zend_error(E_WARNING,

"[msgpack] (msgpack_unserialize_map_item) "

"illegal offset type, skip this decoding");

}

break;

case IS_STRING:

if (zend_symtable_update(

HASH_OF(*container), Z_STRVAL_P(key), Z_STRLEN_P(key) + 1,

&val, sizeof(val), NULL) == FAILURE)

{

zval_ptr_dtor(&val);

if (MSGPACK_G(error_display))

{

zend_error(E_WARNING,

"[msgpack] (msgpack_unserialize_map_item) "

"illegal offset type, skip this decoding");

}

break;

default:

zval_ptr_dtor(&val);

if (MSGPACK_G(error_display))

{

zend_error(E_WARNING,

"[msgpack] (msgpack_unserialize_map_item) "

"illegal offset type, skip this decoding");

}

break;

}

zval_ptr_dtor(&key);

long deps = unpack->deps - 1;

unpack->stack[deps]--;

if (unpack->stack[deps] == 0)

{

unpack->deps--;

/* wakeup */

if (MSGPACK_G(php_only) &&

Z_TYPE_PP(container) == IS_OBJECT &&

Z_OBJCE_PP(container) != PHP_IC_ENTRY &&

zend_hash_exists(

&Z_OBJCE_PP(container)->function_table,

"__wakeup", sizeof("__wakeup")))

{

zval f, *h = NULL;

INIT_PZVAL(&f);

ZVAL_STRINGL(&f, "__wakeup", sizeof("__wakeup") - 1, 0);

call_user_function_ex(

CG(function_table), container, &f, &h, 0, 0, 1, NULL TSRMLS_CC);

if (h)

{

zval_ptr_dtor(&h);

}

return 0;

}

msgpack/php/msgpack_unpack.c at java-0.5.1 · WanderWalker/msgpack · GitHub

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