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aop.c
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aop.c
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/*
/+----------------------------------------------------------------------+
| AOP |
+----------------------------------------------------------------------+
| Copyright (c) 2012 Julien Salleyron, Gérald Croës |
+----------------------------------------------------------------------+
| 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. |
+----------------------------------------------------------------------+
| Author: Julien Salleyron <[email protected]> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "ext/standard/php_string.h"
#include "ext/pcre/php_pcre.h"
#include "Lexer.h"
#include "aop_joinpoint.h"
#include "aop.h"
#include "Zend/zend_operators.h"
ZEND_DECLARE_MODULE_GLOBALS(aop)
#define DEBUG_OBJECT_HANDLERS 1
static void php_aop_init_globals(zend_aop_globals *aop_globals)
{
}
ZEND_BEGIN_ARG_INFO_EX(arginfo_aop_add, 0, 0, 2)
ZEND_ARG_INFO(0,pointcut)
ZEND_ARG_INFO(0,advice)
ZEND_END_ARG_INFO()
static zend_function_entry aop_functions[] =
{
PHP_FE(aop_add_around, arginfo_aop_add)
PHP_FE(aop_add_before, arginfo_aop_add)
PHP_FE(aop_add_after, arginfo_aop_add)
PHP_FE(aop_add_after_returning, arginfo_aop_add)
PHP_FE(aop_add_after_throwing, arginfo_aop_add)
{NULL, NULL, NULL}
};
zend_module_entry aop_module_entry =
{
#if ZEND_MODULE_API_NO >= 20010901
STANDARD_MODULE_HEADER,
#endif
PHP_AOP_EXTNAME,
aop_functions,
PHP_MINIT(aop),
PHP_MSHUTDOWN(aop),
PHP_RINIT(aop),
PHP_RSHUTDOWN(aop),
NULL,
#if ZEND_MODULE_API_NO >= 20010901
PHP_AOP_VERSION,
#endif
STANDARD_MODULE_PROPERTIES
};
#ifdef COMPILE_DL_AOP
ZEND_GET_MODULE(aop)
#endif
static zend_class_entry* aop_class_entry;
static zend_class_entry* aop_const_class_entry;
zend_object_handlers AopJoinpoint_object_handlers;
void aop_free_storage(void *object TSRMLS_DC)
{
AopJoinpoint_object *obj = (AopJoinpoint_object *)object;
if (obj->value!=NULL) {
zval_ptr_dtor(&obj->value);
}
if (obj->args!=NULL) {
zval_ptr_dtor(&obj->args);
}
efree(obj);
}
zend_object_value aop_create_handler(zend_class_entry *type TSRMLS_DC)
{
zend_object_value retval;
AopJoinpoint_object *obj = (AopJoinpoint_object *)emalloc(sizeof(AopJoinpoint_object));
obj->value = NULL;
obj->args = NULL;
memset(obj, 0, sizeof(AopJoinpoint_object));
obj->std.ce = type;
retval.handle = zend_objects_store_put(obj, NULL,
aop_free_storage, NULL TSRMLS_CC);
retval.handlers = &AopJoinpoint_object_handlers;
return retval;
}
ZEND_BEGIN_ARG_INFO(arginfo_aop_args_setArguments, 0)
ZEND_ARG_ARRAY_INFO(0, arguments, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_aop_args_setReturnedValue, 0)
ZEND_ARG_INFO(0, value)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_aop_args_setAssignedValue, 0)
ZEND_ARG_INFO(0, value)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_aop_args_returnbyref, 0, ZEND_RETURN_REFERENCE, -1)
ZEND_END_ARG_INFO()
static const zend_function_entry aop_methods[] = {
PHP_ME(AopJoinpoint, getArguments, arginfo_aop_args_returnbyref, 0)
PHP_ME(AopJoinpoint, getPropertyName, NULL, 0)
PHP_ME(AopJoinpoint, getPropertyValue, NULL, 0)
PHP_ME(AopJoinpoint, setArguments, arginfo_aop_args_setArguments, 0)
PHP_ME(AopJoinpoint, getKindOfAdvice, NULL, 0)
PHP_ME(AopJoinpoint, getReturnedValue, arginfo_aop_args_returnbyref, 0)
PHP_ME(AopJoinpoint, getAssignedValue, arginfo_aop_args_returnbyref, 0)
PHP_ME(AopJoinpoint, setReturnedValue, arginfo_aop_args_setReturnedValue, 0)
PHP_ME(AopJoinpoint, setAssignedValue, arginfo_aop_args_setAssignedValue, 0)
PHP_ME(AopJoinpoint, getPointcut, NULL, 0)
PHP_ME(AopJoinpoint, getObject, NULL, 0)
PHP_ME(AopJoinpoint, getClassName, NULL, 0)
PHP_ME(AopJoinpoint, getMethodName, NULL, 0)
PHP_ME(AopJoinpoint, getFunctionName, NULL, 0)
PHP_ME(AopJoinpoint, getException, NULL, 0)
PHP_ME(AopJoinpoint, process, NULL, 0)
{NULL, NULL, NULL}
};
PHP_RSHUTDOWN_FUNCTION(aop)
{
int i;
for (i=0;i<aop_g(object_cache_size);i++) {
if (aop_g(object_cache)[i]!=NULL) {
free_object_cache(aop_g(object_cache)[i]);
}
}
efree(aop_g(object_cache));
zend_hash_destroy(aop_g(function_cache));
FREE_HASHTABLE(aop_g(function_cache));
zend_hash_destroy(aop_g(pointcuts));
FREE_HASHTABLE(aop_g(pointcuts));
for (i = 0; i < aop_g(count_aopJoinpoint_cache); i++) {
zval *aop_object = aop_g(aopJoinpoint_cache)[i];
FREE_ZVAL(aop_object);
}
if (aop_g(aopJoinpoint_cache)!=NULL) {
efree(aop_g(aopJoinpoint_cache));
}
return SUCCESS;
}
PHP_RINIT_FUNCTION(aop)
{
aop_g(aopJoinpoint_cache) = NULL;
aop_g(count_aopJoinpoint_cache) = 0;
aop_g(overloaded) = 0;
aop_g(lock_write_property) = 0;
aop_g(lock_read_property) = 0;
aop_g(object_cache_size) = 1024;
aop_g(object_cache) = ecalloc(1024, sizeof (object_cache *));
aop_g(pointcut_version) = 0;
ALLOC_HASHTABLE(aop_g(pointcuts));
zend_hash_init(aop_g(pointcuts), 16, NULL, free_pointcut,0);
ALLOC_HASHTABLE(aop_g(function_cache));
zend_hash_init(aop_g(function_cache), 16, NULL, free_pointcut_cache,0);
return SUCCESS;
}
static void free_pointcut_cache (void * cache) {
pointcut_cache *_cache = ((pointcut_cache *)cache);
if (_cache->ht!=NULL) {
zend_hash_destroy(_cache->ht);
FREE_HASHTABLE(_cache->ht);
}
}
static void free_object_cache (void * cache) {
object_cache *_cache = ((object_cache *)cache);
if (_cache->write!=NULL) {
zend_hash_destroy(_cache->write);
FREE_HASHTABLE(_cache->write);
}
if (_cache->read!=NULL) {
zend_hash_destroy(_cache->read);
FREE_HASHTABLE(_cache->read);
}
if (_cache->func!=NULL) {
zend_hash_destroy(_cache->func);
FREE_HASHTABLE(_cache->func);
}
efree(_cache);
}
static void free_pointcut(void *pc)
{
pointcut *_pc = *((pointcut **)pc);
if (_pc->class_name!=NULL) {
efree(_pc->class_name);
}
if (_pc->method!=NULL) {
efree(_pc->method);
}
if (_pc->selector!=NULL) {
efree(_pc->selector);
}
if (_pc->fci.function_name) {
zval_ptr_dtor((zval **)&_pc->fci.function_name);
}
if (_pc->fci.object_ptr) {
zval_ptr_dtor((zval **)&_pc->fci.object_ptr);
}
/* Seems to be free by the engine (pce cache are in a hashtable)
if (_pc->re_method!=NULL) {
pcre_free(_pc->re_method);
}
if (_pc->re_class!=NULL) {
php_printf("FREE PCRE CLASS\n");
pcre_free(_pc->re_class);
}
//*/
efree(_pc);
}
static zval *get_aopJoinpoint () {
TSRMLS_FETCH();
int i;
zval *aop_object;
for (i = 0; i < aop_g(count_aopJoinpoint_cache); i++) {
zval *aop_object = aop_g(aopJoinpoint_cache)[i];
if (Z_REFCOUNT_P(aop_object) == 1) {
AopJoinpoint_object *obj = (AopJoinpoint_object *)zend_object_store_get_object(aop_object TSRMLS_CC);
if (obj->value) {
zval_ptr_dtor(&obj->value);
}
obj->value = NULL;
#if ZEND_MODULE_API_NO >= 20100525
obj->key = NULL;
#endif
obj->member = NULL;
obj->type = 0;
obj->object = NULL;
if (obj->args!=NULL) {
zval_ptr_dtor(&obj->args);
}
obj->args=NULL;
Z_ADDREF_P(aop_object);
return aop_object;
}
}
aop_g(count_aopJoinpoint_cache)++;
if (aop_g(count_aopJoinpoint_cache) == 1) {
aop_g(aopJoinpoint_cache) = emalloc(sizeof(pointcut *));
} else {
aop_g(aopJoinpoint_cache) = erealloc(aop_g(aopJoinpoint_cache), aop_g(count_aopJoinpoint_cache)*sizeof(pointcut *));
}
MAKE_STD_ZVAL(aop_object);
Z_TYPE_P(aop_object) = IS_OBJECT;
(aop_object)->value.obj = aop_create_handler(aop_class_entry TSRMLS_CC);
aop_g(aopJoinpoint_cache)[aop_g(count_aopJoinpoint_cache)-1] = aop_object;
Z_ADDREF_P(aop_object);
return aop_object;
}
ZEND_DLEXPORT zval **zend_std_get_property_ptr_ptr_overload(zval *object, zval *member AOP_KEY_D TSRMLS_DC) {
zval **try_return;
zend_execute_data *ex = EG(current_execute_data);
//Test if ++
if (ex->opline->opcode != ZEND_PRE_INC_OBJ && ex->opline->opcode != ZEND_POST_INC_OBJ && ex->opline->opcode != ZEND_PRE_DEC_OBJ && ex->opline->opcode != ZEND_POST_DEC_OBJ) {
try_return = zend_std_get_property_ptr_ptr(object, member AOP_KEY_C TSRMLS_CC);
} else {
// Call original to not have a notice
zend_std_get_property_ptr_ptr(object, member AOP_KEY_C TSRMLS_CC);
return NULL;
}
return try_return;
}
ZEND_DLEXPORT zval * zend_std_read_property_overload(zval *object, zval *member, int type AOP_KEY_D TSRMLS_DC) {
zval *to_return;
if (aop_g(lock_read_property)>25) {
zend_error(E_ERROR, "Too many level of nested advices. Are there any recursive call ?");
}
aop_g(lock_read_property)++;
to_return = _test_read_pointcut_and_execute(NULL, NULL, object, member, type, EG(scope) AOP_KEY_C);
aop_g(lock_read_property)--;
return to_return;
}
void _test_func_pointcut_and_execute(HashPosition pos, HashTable *ht, zend_execute_data *ex, zval *object, zend_class_entry *scope, zend_class_entry *called_scope, int args_overloaded, zval *args, zval **to_return_ptr_ptr) {
zval *aop_object, *exception;
TSRMLS_FETCH();
AopJoinpoint_object *obj;
pointcut *current_pc;
pointcut **temp;
if (ht==NULL) {
ht = get_cache_func (object, ex);
if (ht==NULL) {
aop_g(overloaded) = 0;
execute_context (ex, object, scope, called_scope,args_overloaded, args, to_return_ptr_ptr);
aop_g(overloaded) = 1;
return;
}
zend_hash_internal_pointer_reset_ex(ht, &pos);
} else {
zend_hash_move_forward_ex (ht, &pos);
}
if (zend_hash_get_current_data_ex(ht, (void **)&temp, &pos) != SUCCESS) {
aop_g(overloaded) = 0;
execute_context (ex, object, scope, called_scope,args_overloaded, args, to_return_ptr_ptr);
aop_g(overloaded) = 1;
return;
}
current_pc = *temp;
aop_object = get_aopJoinpoint();
obj = (AopJoinpoint_object *) zend_object_store_get_object(aop_object TSRMLS_CC);
obj->current_pointcut = current_pc;
//obj->current_pointcut_index = current_pointcut_index;
obj->pos = pos;
obj->advice = ht;
obj->kind_of_advice = current_pc->kind_of_advice;
obj->object = object;
obj->to_return_ptr_ptr = to_return_ptr_ptr;
obj->value = (*to_return_ptr_ptr);
obj->ex = ex;
obj->object = object;
obj->scope = scope;
obj->called_scope = called_scope;
if ( args_overloaded) {
Z_ADDREF_P(args);
obj->args = args;
}
obj->args_overloaded = args_overloaded;
obj->exception = NULL;
if (current_pc->kind_of_advice & AOP_KIND_BEFORE) {
if (!EG(exception)) {
execute_pointcut(current_pc, aop_object);
}
}
if (current_pc->kind_of_advice & AOP_KIND_AROUND) {
if (!EG(exception)) {
execute_pointcut(current_pc, aop_object);
if (obj->value != NULL) {
Z_ADDREF_P(obj->value);
(*to_return_ptr_ptr) = obj->value;
}
}
} else {
_test_func_pointcut_and_execute(pos, ht, ex, object, scope, called_scope, obj->args_overloaded, obj->args, to_return_ptr_ptr);
}
if (current_pc->kind_of_advice & AOP_KIND_AFTER) {
if (current_pc->kind_of_advice & AOP_KIND_CATCH && EG(exception)) {
exception = EG(exception);
obj->exception = exception;
EG(exception)=NULL;
execute_pointcut(current_pc, aop_object);
EG(exception) = exception;
if (obj->value != NULL) {
Z_ADDREF_P(obj->value);
(*to_return_ptr_ptr) = obj->value;
}
} else if (current_pc->kind_of_advice & AOP_KIND_RETURN && !EG(exception)) {
execute_pointcut(current_pc, aop_object);
if (obj->value != NULL) {
(*to_return_ptr_ptr) = obj->value;
}
}
}
Z_DELREF_P(aop_object);
return;
}
zval *_test_read_pointcut_and_execute(HashPosition pos, HashTable *ht, zval *object, zval *member, int type, zend_class_entry *current_scope AOP_KEY_D) {
TSRMLS_FETCH();
zval *temp_this, *to_return;
zend_class_entry *scope;
pointcut **temp;
pointcut *current_pc;
AopJoinpoint_object *obj;
zval *aop_object;
if (ht==NULL) {
//ht = calculate_property_pointcuts (object, member, AOP_KIND_READ AOP_KEY_C);
ht = get_cache_property (object, member, AOP_KIND_READ AOP_KEY_C);
zend_hash_internal_pointer_reset_ex(ht, &pos);
} else {
zend_hash_move_forward_ex (ht, &pos);
}
if (zend_hash_get_current_data_ex(ht, (void **)&temp, &pos) != SUCCESS) {
scope = EG(scope);
temp_this = EG(This);
EG(scope) = current_scope;
EG(This) = object;
to_return = zend_std_read_property(object, member, type AOP_KEY_C TSRMLS_CC);
EG(This) = temp_this;
EG(scope) = scope;
return to_return;
}
current_pc = *temp;
aop_object = get_aopJoinpoint();
obj = (AopJoinpoint_object *) zend_object_store_get_object(aop_object TSRMLS_CC);
obj->current_pointcut = current_pc;
obj->pos = pos;
obj->advice = ht;
obj->kind_of_advice = (current_pc->kind_of_advice&AOP_KIND_WRITE) ? (current_pc->kind_of_advice - AOP_KIND_WRITE) : current_pc->kind_of_advice;
obj->object = object;
obj->member = member;
obj->type = type;
obj->scope = current_scope;
#if ZEND_MODULE_API_NO >= 20100525
obj->key = key;
#endif
if (current_pc->kind_of_advice & AOP_KIND_BEFORE) {
execute_pointcut (current_pc, aop_object);
}
if (current_pc->kind_of_advice & AOP_KIND_AROUND) {
execute_pointcut (current_pc, aop_object);
to_return = obj->value;
} else {
to_return = _test_read_pointcut_and_execute(pos, ht, object, member, type, current_scope AOP_KEY_C);
}
if (current_pc->kind_of_advice & AOP_KIND_AFTER) {
execute_pointcut (current_pc, aop_object);
if (obj->value != NULL) {
to_return = obj->value;
}
}
Z_DELREF_P(aop_object);
return to_return;
}
void _test_write_pointcut_and_execute(HashPosition pos, HashTable *ht, zval *object, zval *member, zval *value, zend_class_entry *current_scope AOP_KEY_D) {
TSRMLS_FETCH();
zval *temp_this, *to_return;
zend_class_entry *scope;
pointcut **temp;
pointcut *current_pc;
AopJoinpoint_object *obj;
zval *aop_object;
if (ht==NULL) {
//ht = calculate_property_pointcuts (object, member, AOP_KIND_WRITE AOP_KEY_C);
ht = get_cache_property (object, member, AOP_KIND_WRITE AOP_KEY_C);
zend_hash_internal_pointer_reset_ex(ht, &pos);
} else {
zend_hash_move_forward_ex (ht, &pos);
}
if (zend_hash_get_current_data_ex(ht, (void **)&temp, &pos) != SUCCESS) {
scope = EG(scope);
temp_this = EG(This);
EG(scope) = current_scope;
EG(This) = object;
zend_std_write_property(object,member,value AOP_KEY_C TSRMLS_CC);
EG(This) = temp_this;
EG(scope) = scope;
return;
}
current_pc = *temp;
aop_object = get_aopJoinpoint();
obj = (AopJoinpoint_object *) zend_object_store_get_object(aop_object TSRMLS_CC);
obj->current_pointcut = current_pc;
obj->pos = pos;
obj->advice = ht;
obj->kind_of_advice = (current_pc->kind_of_advice&AOP_KIND_READ) ? (current_pc->kind_of_advice - AOP_KIND_READ) : current_pc->kind_of_advice;
obj->object = object;
obj->member = member;
obj->value = value;
Z_SET_ISREF_P(value);
Z_ADDREF_P(value);
obj->scope = current_scope;
#if ZEND_MODULE_API_NO >= 20100525
obj->key = key;
#endif
if (current_pc->kind_of_advice & AOP_KIND_BEFORE) {
execute_pointcut (current_pc, aop_object);
}
if (current_pc->kind_of_advice & AOP_KIND_AROUND) {
execute_pointcut (current_pc, aop_object);
} else {
value = obj->value;
_test_write_pointcut_and_execute(pos, ht, object, member, value, current_scope AOP_KEY_C);
}
if (current_pc->kind_of_advice & AOP_KIND_AFTER) {
execute_pointcut (current_pc, aop_object);
if (obj->value != NULL) {
to_return = obj->value;
}
}
Z_DELREF_P(aop_object);
}
static int test_property_scope (pointcut *current_pc, zend_class_entry *ce, zval *member AOP_KEY_D) {
zend_property_info *property_info = NULL;
ulong h;
#if ZEND_MODULE_API_NO < 20100525
h = zend_get_hash_value(Z_STRVAL_P(member), Z_STRLEN_P(member) + 1);
#else
h = key ? key->hash_value : zend_get_hash_value(Z_STRVAL_P(member), Z_STRLEN_P(member) + 1);
#endif
if (zend_hash_quick_find(&ce->properties_info, Z_STRVAL_P(member), Z_STRLEN_P(member)+1, h, (void **) &property_info)==SUCCESS) {
if (property_info) {
if (current_pc->static_state != 2) {
if (current_pc->static_state) {
if (!(property_info->flags & ZEND_ACC_STATIC)) {
return 0;
}
} else {
if ((property_info->flags & ZEND_ACC_STATIC)) {
return 0;
}
}
}
if (current_pc->scope != 0 && !(current_pc->scope & (property_info->flags & ZEND_ACC_PPP_MASK))) {
return 0;
}
} else {
return 0;
}
} else {
if (current_pc->scope != 0 && !(current_pc->scope & ZEND_ACC_PUBLIC)) {
return 0;
}
if (current_pc->static_state == 1) {
return 0;
}
}
return 1;
}
static void execute_pointcut (pointcut *pointcut_to_execute, zval *arg) {
zval *args[1], *zret_ptr;
TSRMLS_FETCH();
args[0] = (zval *)&(arg);
zret_ptr = NULL;
pointcut_to_execute->fci.param_count = 1;
pointcut_to_execute->fci.size = sizeof(pointcut_to_execute->fci);
pointcut_to_execute->fci.retval_ptr_ptr = &zret_ptr;
pointcut_to_execute->fci.params = (zval ***)args;
if (zend_call_function(&(pointcut_to_execute->fci), &(pointcut_to_execute->fcic) TSRMLS_CC) == FAILURE) {
zend_error(E_ERROR, "Problem in AOP Callback");
}
if (zret_ptr != NULL && Z_TYPE_P(zret_ptr) != IS_NULL) {
AopJoinpoint_object *obj = (AopJoinpoint_object *)zend_object_store_get_object(arg TSRMLS_CC);
if (obj->value!=NULL) {
zval_ptr_dtor(&obj->value);
}
obj->value = zret_ptr;
//zval_ptr_dtor(&zret_ptr);
} else {
if (!EG(exception)) {
zval_ptr_dtor(&zret_ptr);
}
}
}
ZEND_DLEXPORT void zend_std_write_property_overload(zval *object, zval *member, zval *value AOP_KEY_D TSRMLS_DC) {
if (aop_g(lock_write_property) > 25) {
zend_error(E_ERROR, "Too many level of nested advices. Are there any recursive call ?");
}
aop_g(lock_write_property)++;
_test_write_pointcut_and_execute(NULL, NULL, object, member, value, EG(scope) AOP_KEY_C);
aop_g(lock_write_property)--;
}
PHP_INI_BEGIN()
STD_PHP_INI_BOOLEAN("aop.enable","1",PHP_INI_ALL, OnUpdateBool, aop_enable, zend_aop_globals, aop_globals)
PHP_INI_END()
PHP_MINIT_FUNCTION(aop)
{
zend_class_entry ce;
ZEND_INIT_MODULE_GLOBALS(aop, php_aop_init_globals, NULL);
REGISTER_INI_ENTRIES();
INIT_CLASS_ENTRY(ce, "AopJoinpoint", aop_methods);
aop_class_entry = zend_register_internal_class(&ce TSRMLS_CC);
aop_class_entry->create_object = aop_create_handler;
memcpy(&AopJoinpoint_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
AopJoinpoint_object_handlers.clone_obj = NULL;
REGISTER_LONG_CONSTANT("AOP_KIND_BEFORE", AOP_KIND_BEFORE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_AFTER", AOP_KIND_AFTER, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_AROUND", AOP_KIND_AROUND, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_PROPERTY", AOP_KIND_PROPERTY, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_FUNCTION", AOP_KIND_FUNCTION, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_METHOD", AOP_KIND_METHOD, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_READ", AOP_KIND_READ, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_WRITE", AOP_KIND_WRITE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_AROUND_WRITE_PROPERTY", AOP_KIND_AROUND_WRITE_PROPERTY, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_AROUND_READ_PROPERTY", AOP_KIND_AROUND_READ_PROPERTY, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_BEFORE_WRITE_PROPERTY", AOP_KIND_BEFORE_WRITE_PROPERTY, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_BEFORE_READ_PROPERTY", AOP_KIND_BEFORE_READ_PROPERTY, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_AFTER_WRITE_PROPERTY", AOP_KIND_AFTER_WRITE_PROPERTY, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_AFTER_READ_PROPERTY", AOP_KIND_AFTER_READ_PROPERTY, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_BEFORE_METHOD", AOP_KIND_BEFORE_METHOD, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_AFTER_METHOD", AOP_KIND_AFTER_METHOD, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_AROUND_METHOD", AOP_KIND_AROUND_METHOD, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_BEFORE_FUNCTION", AOP_KIND_BEFORE_FUNCTION, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_AFTER_FUNCTION", AOP_KIND_AFTER_FUNCTION, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("AOP_KIND_AROUND_FUNCTION", AOP_KIND_AROUND_FUNCTION, CONST_CS | CONST_PERSISTENT);
#if ZEND_MODULE_API_NO < 20100525
zend_std_write_property = std_object_handlers.write_property;
#endif
std_object_handlers.write_property = zend_std_write_property_overload;
zend_std_read_property = std_object_handlers.read_property;
std_object_handlers.read_property = zend_std_read_property_overload;
zend_std_get_property_ptr_ptr = std_object_handlers.get_property_ptr_ptr;
std_object_handlers.get_property_ptr_ptr = zend_std_get_property_ptr_ptr_overload;
_zend_execute = zend_execute;
zend_execute = aop_execute;
_zend_execute_internal = zend_execute_internal;
zend_execute_internal = aop_execute_internal;
return SUCCESS;
}
static pointcut * alloc_pointcut () {
pointcut *pc = (pointcut *)emalloc(sizeof(pointcut));
pc->scope = 0;
pc->static_state = 2;
pc->method_jok = 0;
pc->class_jok = 0;
pc->class_name = NULL;
pc->method = NULL;
pc->selector = NULL;
pc->kind_of_advice = 0;
//pc->fci = NULL;
//pc->fcic = NULL;
pc->re_method = NULL;
pc->re_class = NULL;
return pc;
}
static void add_pointcut (zend_fcall_info fci, zend_fcall_info_cache fcic, char *selector, int selector_len, int type , zval **return_value_ptr TSRMLS_DC) {
pointcut *pc = NULL;
char *temp_str = NULL;
int is_class = 0;
scanner_state *state = (scanner_state *)emalloc(sizeof(scanner_state));
scanner_token *token = (scanner_token *)emalloc(sizeof(scanner_token));
if (selector_len < 2) {
zend_error(E_ERROR, "The given pointcut is invalid. You must specify a function call, a method call or a property operation");
}
pc = alloc_pointcut();
pc->selector = estrdup(selector);
pc->fci = fci;
pc->fcic = fcic;
pc->kind_of_advice = type;
state->start = selector;
state->end = state->start;
while(0 <= scan(state, token)) {
// php_printf("TOKEN %d \n", token->TOKEN);
switch (token->TOKEN) {
case TOKEN_STATIC:
pc->static_state=token->int_val;
break;
case TOKEN_SCOPE:
pc->scope |= token->int_val;
break;
case TOKEN_CLASS:
pc->class_name=estrdup(temp_str);
efree(temp_str);
temp_str=NULL;
is_class=1;
break;
case TOKEN_PROPERTY:
pc->kind_of_advice |= AOP_KIND_PROPERTY | token->int_val;
break;
case TOKEN_FUNCTION:
if (is_class) {
pc->kind_of_advice |= AOP_KIND_METHOD;
} else {
pc->kind_of_advice |= AOP_KIND_FUNCTION;
}
break;
case TOKEN_TEXT:
if (temp_str!=NULL) {
efree(temp_str);
}
temp_str=estrdup(token->str_val);
efree(token->str_val);
break;
default:
break;
}
}
pc->method = temp_str;
if (pc->kind_of_advice==type) {
pc->kind_of_advice |= AOP_KIND_READ | AOP_KIND_WRITE | AOP_KIND_PROPERTY;
}
make_regexp_on_pointcut(&pc);
zend_hash_next_index_insert(aop_g(pointcuts), &pc, sizeof(pointcut **),NULL);
aop_g(pointcut_version)++;
efree(state);
efree(token);
}
void make_regexp_on_pointcut (pointcut **pc) {
pcre_extra *pcre_extra = NULL;
int preg_options = 0;
int *replace_count, *new_length;
char *regexp;
char *regexp_buffer;
char tempregexp[500];
TSRMLS_FETCH();
(*pc)->method_jok = (strchr((*pc)->method, '*') != NULL);
replace_count = emalloc (sizeof(int));
new_length = emalloc (sizeof(int));
regexp = estrdup((*pc)->method);
regexp_buffer = php_str_to_str_ex(regexp, strlen(regexp), "**\\", 3, "[.#}", 4, new_length, 0, replace_count);
efree(regexp);
regexp = regexp_buffer;
regexp_buffer = php_str_to_str_ex(regexp, strlen(regexp), "**", 2, "[.#]", 4, new_length, 0, replace_count);
efree(regexp);
regexp = regexp_buffer;
regexp_buffer = php_str_to_str_ex(regexp, strlen(regexp), "\\", 1, "\\\\", 2, new_length, 0, replace_count);
efree(regexp);
regexp = regexp_buffer;
regexp_buffer = php_str_to_str_ex(regexp, strlen(regexp), "*", 1, "[^\\\\]*", 6, new_length, 0, replace_count);
efree(regexp);
regexp = regexp_buffer;
regexp_buffer = php_str_to_str_ex(regexp, strlen(regexp), "[.#]", 4, ".*", 2, new_length, 0, replace_count);
efree(regexp);
regexp = regexp_buffer;
regexp_buffer = php_str_to_str_ex(regexp, strlen(regexp), "[.#}", 4, "(.*\\\\)?", 7, new_length, 0, replace_count);
efree(regexp);
regexp = regexp_buffer;
if (regexp[0]!='\\') {
sprintf((char *)tempregexp, "/^%s$/i", regexp);
} else {
sprintf((char *)tempregexp, "/^%s$/i", regexp+2);
}
efree(regexp);
(*pc)->re_method = pcre_get_compiled_regex(tempregexp, &pcre_extra, &preg_options TSRMLS_CC);
//efree(tempregexp);
if (!(*pc)->re_method) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid expression");
}
if ((*pc)->class_name != NULL) {
regexp = estrdup((*pc)->class_name);
regexp_buffer = php_str_to_str_ex(regexp, strlen(regexp), "**\\", 3, "[.#}", 4, new_length, 0, replace_count);
efree(regexp);
regexp = regexp_buffer;
regexp_buffer = php_str_to_str_ex(regexp, strlen(regexp), "**", 2, "[.#]", 4, new_length, 0, replace_count);
efree(regexp);
regexp = regexp_buffer;
regexp_buffer = php_str_to_str_ex(regexp, strlen(regexp), "\\", 1, "\\\\", 2, new_length, 0, replace_count);
efree(regexp);
regexp = regexp_buffer;
regexp_buffer = php_str_to_str_ex(regexp, strlen(regexp), "*", 1, "[^\\\\]*", 6, new_length, 0, replace_count);
efree(regexp);
regexp = regexp_buffer;
regexp_buffer = php_str_to_str_ex(regexp, strlen(regexp), "[.#]", 4, ".*", 2, new_length, 0, replace_count);
efree(regexp);
regexp = regexp_buffer;
regexp_buffer = php_str_to_str_ex(regexp, strlen(regexp), "[.#}", 4, "(.*\\\\)?", 7, new_length, 0, replace_count);
efree(regexp);
regexp = regexp_buffer;
if (regexp[0]!='\\') {
sprintf((char *)tempregexp, "/^%s$/i", regexp);
} else {
sprintf((char *)tempregexp, "/^%s$/i", regexp+2);
}
efree(regexp);
(*pc)->re_class = pcre_get_compiled_regex(tempregexp, &pcre_extra, &preg_options TSRMLS_CC);
if (!(*pc)->re_class) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid expression");
}
}
efree(replace_count);
efree(new_length);
}
PHP_FUNCTION(aop_add_around)
{
zend_fcall_info fci;
zend_fcall_info_cache fcic= { 0, NULL, NULL, NULL, NULL };
char *selector;
int selector_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sf", &selector, &selector_len, &fci, &fcic) == FAILURE) {
zend_error(E_ERROR, "aop_add_around() expects a string for the pointcut as a first argument and a callback as a second argument");
return;
}
if (fci.function_name) {
Z_ADDREF_P(fci.function_name);
}
if (fci.object_ptr) {
Z_ADDREF_P(fci.object_ptr);
}
add_pointcut(fci, fcic, selector, selector_len, AOP_KIND_AROUND, return_value_ptr TSRMLS_CC);
}
PHP_FUNCTION(aop_add_before)
{
zend_fcall_info fci;
zend_fcall_info_cache fcic = { 0, NULL, NULL, NULL, NULL };
char *selector;
int selector_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sf", &selector, &selector_len, &fci, &fcic) == FAILURE) {
zend_error(E_ERROR, "aop_add_before() expects a string for the pointcut as a first argument and a callback as a second argument");
return;
}
if (fci.function_name) {
Z_ADDREF_P(fci.function_name);
}
if (fci.object_ptr) {
Z_ADDREF_P(fci.object_ptr);
}
add_pointcut(fci, fcic, selector, selector_len, AOP_KIND_BEFORE, return_value_ptr TSRMLS_CC);
}
PHP_FUNCTION(aop_add_after_throwing)
{
zend_fcall_info fci;
zend_fcall_info_cache fcic= { 0, NULL, NULL, NULL, NULL };
char *selector;
int selector_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sf", &selector, &selector_len, &fci, &fcic) == FAILURE) {
zend_error(E_ERROR, "aop_add_after() expects a string for the pointcut as a first argument and a callback as a second argument");
return;
}
if (fci.function_name) {
Z_ADDREF_P(fci.function_name);
}
if (fci.object_ptr) {
Z_ADDREF_P(fci.object_ptr);
}
add_pointcut(fci, fcic, selector, selector_len, AOP_KIND_AFTER|AOP_KIND_CATCH, return_value_ptr TSRMLS_CC);
}
PHP_FUNCTION(aop_add_after_returning)
{
zend_fcall_info fci;
zend_fcall_info_cache fcic= { 0, NULL, NULL, NULL, NULL };
char *selector;
int selector_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sf", &selector, &selector_len, &fci, &fcic) == FAILURE) {
zend_error(E_ERROR, "aop_add_after() expects a string for the pointcut as a first argument and a callback as a second argument");
return;
}
if (fci.function_name) {
Z_ADDREF_P(fci.function_name);
}
if (fci.object_ptr) {
Z_ADDREF_P(fci.object_ptr);
}
add_pointcut(fci, fcic, selector, selector_len, AOP_KIND_AFTER|AOP_KIND_RETURN, return_value_ptr TSRMLS_CC);
}
PHP_FUNCTION(aop_add_after)
{
zend_fcall_info fci;
zend_fcall_info_cache fcic= { 0, NULL, NULL, NULL, NULL };
char *selector;
int selector_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sf", &selector, &selector_len, &fci, &fcic) == FAILURE) {
zend_error(E_ERROR, "aop_add_after() expects a string for the pointcut as a first argument and a callback as a second argument");
return;
}
if (fci.function_name) {
Z_ADDREF_P(fci.function_name);
}
if (fci.object_ptr) {
Z_ADDREF_P(fci.object_ptr);
}
add_pointcut(fci, fcic, selector, selector_len, AOP_KIND_AFTER|AOP_KIND_CATCH|AOP_KIND_RETURN, return_value_ptr TSRMLS_CC);
}
ZEND_DLEXPORT void aop_execute (zend_op_array *ops TSRMLS_DC) {
zend_execute_data *data;
zend_function *curr_func = NULL;
int must_return = (EG(return_value_ptr_ptr)!=NULL);
if (!aop_g(aop_enable)) {
_zend_execute(ops TSRMLS_CC);
return;
}
data = EG(current_execute_data);
if (data) {
curr_func = data->function_state.function;
}
if (ops->type==ZEND_EVAL_CODE || curr_func == NULL || curr_func->common.function_name == NULL || aop_g(overloaded) || EG(exception)) {
_zend_execute(ops TSRMLS_CC);
return;
}
if (!EG(return_value_ptr_ptr)) {
EG(return_value_ptr_ptr) = emalloc(sizeof(zval *));
*(EG(return_value_ptr_ptr)) = NULL;
}
aop_g(overloaded) = 1;
_test_func_pointcut_and_execute(NULL, NULL, EG(current_execute_data), EG(This), EG(scope),EG(called_scope), 0, NULL, EG(return_value_ptr_ptr));
aop_g(overloaded) = 0;
if (!must_return
#if ZEND_MODULE_API_NO >= 20100525
&& !(EG(opline_ptr) && ((zend_op *)EG(opline_ptr))->result_type & EXT_TYPE_UNUSED)
#endif
) {
if (*EG(return_value_ptr_ptr)) {
zval_ptr_dtor(EG(return_value_ptr_ptr));
efree(EG(return_value_ptr_ptr));
} else {
efree(EG(return_value_ptr_ptr));
}
} else if (!must_return) {
efree(EG(return_value_ptr_ptr));
} else {
if (!*EG(return_value_ptr_ptr)) {
MAKE_STD_ZVAL(*EG(return_value_ptr_ptr));
Z_TYPE_P(*EG(return_value_ptr_ptr)) = IS_NULL;
}
}
}
#if ZEND_MODULE_API_NO < 20121113
void aop_execute_internal (zend_execute_data *current_execute_data, int return_value_used TSRMLS_DC) {
#else
void aop_execute_internal (zend_execute_data *current_execute_data, struct _zend_fcall_info *fci, int return_value_used TSRMLS_DC) {
#endif
zend_execute_data *data;
zend_function *curr_func = NULL;
zval ** to_return_ptr_ptr;
if (!aop_g(aop_enable)) {
if (_zend_execute_internal) {
#if ZEND_MODULE_API_NO < 20121113
_zend_execute_internal(current_execute_data, return_value_used TSRMLS_CC);
#else
_zend_execute_internal(current_execute_data, fci, return_value_used TSRMLS_CC);
#endif
} else {
#if ZEND_MODULE_API_NO < 20121113
execute_internal(current_execute_data, return_value_used TSRMLS_CC);
#else
execute_internal(current_execute_data, fci, return_value_used TSRMLS_CC);
#endif
}
return;