-/*
- +--------------------------------------------------------------------+
- | PECL :: propro |
- +--------------------------------------------------------------------+
- | Redistribution and use in source and binary forms, with or without |
- | modification, are permitted provided that the conditions mentioned |
- | in the accompanying LICENSE file are met. |
- +--------------------------------------------------------------------+
- | Copyright (c) 2013 Michael Wallner <mike@php.net> |
- +--------------------------------------------------------------------+
-*/
-
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <php.h>
-#include <ext/standard/info.h>
-
-#include "php_propro_api.h"
-
-#if PHP_VERSION_ID < 50500
-#undef SUCCESS
-#undef FAILURE
-typedef enum {
- SUCCESS = 0,
- FAILURE = -1
-} ZEND_RESULT_CODE;
-#endif
-
-#define DEBUG_PROPRO 0
-
-#if PHP_VERSION_ID < 50400
-# define object_properties_init(o, ce) \
- zend_hash_copy(((zend_object *) o)->properties, &(ce->default_properties), \
- (copy_ctor_func_t) zval_add_ref, NULL, sizeof(zval*))
-#endif
-
-php_property_proxy_t *php_property_proxy_init(zval *container,
- const char *member_str, size_t member_len TSRMLS_DC)
-{
- php_property_proxy_t *proxy = ecalloc(1, sizeof(*proxy));
-
- Z_ADDREF_P(container);
- proxy->container = container;
- proxy->member_str = estrndup(member_str, member_len);
- proxy->member_len = member_len;
-
- return proxy;
-}
-
-void php_property_proxy_free(php_property_proxy_t **proxy)
-{
- if (*proxy) {
- zval_ptr_dtor(&(*proxy)->container);
- efree((*proxy)->member_str);
- efree(*proxy);
- *proxy = NULL;
- }
-}
-
-static zend_class_entry *php_property_proxy_class_entry;
-static zend_object_handlers php_property_proxy_object_handlers;
-
-zend_class_entry *php_property_proxy_get_class_entry(void)
-{
- return php_property_proxy_class_entry;
-}
-
-zend_object_value php_property_proxy_object_new(zend_class_entry *ce TSRMLS_DC)
-{
- return php_property_proxy_object_new_ex(ce, NULL, NULL TSRMLS_CC);
-}
-
-static void php_property_proxy_object_free(void *object TSRMLS_DC)
-{
- php_property_proxy_object_t *o = object;
-
-#if DEBUG_PROPRO
- fprintf(stderr, "#PP %p free\n", o);
-#endif
-
- if (o->proxy) {
- php_property_proxy_free(&o->proxy);
- }
- if (o->parent) {
- zend_objects_store_del_ref_by_handle_ex(o->parent->zv.handle,
- o->parent->zv.handlers TSRMLS_CC);
- o->parent = NULL;
- }
- zend_object_std_dtor((zend_object *) o TSRMLS_CC);
- efree(o);
-}
-
-zend_object_value php_property_proxy_object_new_ex(zend_class_entry *ce,
- php_property_proxy_t *proxy, php_property_proxy_object_t **ptr TSRMLS_DC)
-{
- php_property_proxy_object_t *o;
-
- o = ecalloc(1, sizeof(*o));
- zend_object_std_init((zend_object *) o, ce TSRMLS_CC);
- object_properties_init((zend_object *) o, ce);
-
- if (ptr) {
- *ptr = o;
- }
- o->proxy = proxy;
-
- o->zv.handle = zend_objects_store_put(o, NULL,
- php_property_proxy_object_free, NULL TSRMLS_CC);
- o->zv.handlers = &php_property_proxy_object_handlers;
-
-#if DEBUG_PROPRO
- fprintf(stderr, "#PP %p init\n", o);
-#endif
-
- return o->zv;
-}
-
-#if DEBUG_PROPRO
-/* we do not really care about TS when debugging */
-static int level = 1;
-static const char space[] = " ";
-static const char *inoutstr[] = {"< return",""," > enter"};
-static void _walk(php_property_proxy_object_t *obj TSRMLS_DC)
-{
- if (obj) {
- _walk(obj->parent TSRMLS_CC);
- fprintf(stderr, ".%s", obj->proxy->member_str);
- }
-}
-
-static void debug_propro(int inout, const char *f, zval *object, zval *offset,
- zval *value TSRMLS_DC)
-{
- php_property_proxy_object_t *obj;
-
- obj = zend_object_store_get_object(object TSRMLS_CC);
- fprintf(stderr, "#PP %p %s %s %s ", obj, &space[sizeof(space)-level],
- inoutstr[inout+1], f);
-
- level += inout;
-
- _walk(obj TSRMLS_CC);
-
- if (*f++=='d'
- && *f++=='i'
- && *f++=='m'
- ) {
- char *offset_str = "[]";
- zval *o = offset;
-
- if (o) {
- convert_to_string_ex(&o);
- offset_str = Z_STRVAL_P(o);
- }
-
- fprintf(stderr, ".%s", offset_str);
-
- if (o && o != offset) {
- zval_ptr_dtor(&o);
- }
- }
- if (value) {
- const char *t[] = {
- "NULL",
- "int",
- "float",
- "bool",
- "Array",
- "Object",
- "string",
- "resource",
- "const",
- "const Array",
- "callable"
- };
- fprintf(stderr, " = (%s) ", t[Z_TYPE_P(value)&0xf]);
- zend_print_flat_zval_r(value TSRMLS_CC);
- }
-
- fprintf(stderr, "\n");
-}
-#else
-#define debug_propro(l, f, obj, off, val)
-#endif
-
-static zval *get_parent_proxied_value(zval *object TSRMLS_DC);
-static zval *get_proxied_value(zval *object TSRMLS_DC);
-static zval *read_dimension(zval *object, zval *offset, int type TSRMLS_DC);
-static ZEND_RESULT_CODE cast_proxied_value(zval *object, zval *return_value,
- int type TSRMLS_DC);
-static void write_dimension(zval *object, zval *offset, zval *value TSRMLS_DC);
-static void set_proxied_value(zval **object, zval *value TSRMLS_DC);
-
-static zval *get_parent_proxied_value(zval *object TSRMLS_DC)
-{
- zval *value = NULL;
- php_property_proxy_object_t *obj;
-
- obj = zend_object_store_get_object(object TSRMLS_CC);
- if (obj->proxy) {
- if (obj->parent) {
- zval *parent;
-
- MAKE_STD_ZVAL(parent);
- parent->type = IS_OBJECT;
- parent->value.obj = obj->parent->zv;
- zend_objects_store_add_ref_by_handle(
- obj->parent->zv.handle TSRMLS_CC);
- value = get_proxied_value(parent TSRMLS_CC);
- zval_ptr_dtor(&parent);
- }
- }
-
- return value;
-}
-
-static zval *get_proxied_value(zval *object TSRMLS_DC)
-{
- zval **hash_value, *value = NULL;
- php_property_proxy_object_t *obj;
- ZEND_RESULT_CODE rv;
-
- obj = zend_object_store_get_object(object TSRMLS_CC);
- debug_propro(1, "get", object, NULL, NULL TSRMLS_CC);
-
- if (obj->proxy) {
- if (obj->parent) {
- zval *parent_value = get_parent_proxied_value(object TSRMLS_CC);
-
- if (parent_value && parent_value != obj->proxy->container) {
- Z_ADDREF_P(parent_value);
- zval_ptr_dtor(&obj->proxy->container);
- obj->proxy->container = parent_value;
- }
- }
- switch (Z_TYPE_P(obj->proxy->container)) {
- case IS_OBJECT:
- value = zend_read_property(Z_OBJCE_P(obj->proxy->container),
- obj->proxy->container, obj->proxy->member_str,
- obj->proxy->member_len, 0 TSRMLS_CC);
- break;
-
- case IS_ARRAY:
- rv = zend_symtable_find(Z_ARRVAL_P(obj->proxy->container),
- obj->proxy->member_str, obj->proxy->member_len + 1,
- (void *) &hash_value);
-
- if (SUCCESS == rv) {
- value = *hash_value;
- }
- break;
- }
- }
-
- debug_propro(-1, "get", object, NULL, value TSRMLS_CC);
-
- return value;
-}
-
-static ZEND_RESULT_CODE cast_proxied_value(zval *object, zval *return_value,
- int type TSRMLS_DC)
-{
- zval *proxied_value;
-
- if ((proxied_value = get_proxied_value(object TSRMLS_CC))) {
- RETVAL_ZVAL(proxied_value, 1, 0);
- if (Z_TYPE_P(proxied_value) != type) {
- convert_to_explicit_type(return_value, type);
- }
- return SUCCESS;
- }
-
- return FAILURE;
-}
-
-static void set_proxied_value(zval **object, zval *value TSRMLS_DC)
-{
- php_property_proxy_object_t *obj;
-
- obj = zend_object_store_get_object(*object TSRMLS_CC);
- debug_propro(1, "set", *object, NULL, value TSRMLS_CC);
-
- if (obj->proxy) {
- if (obj->parent) {
- zval *parent_value = get_parent_proxied_value(*object TSRMLS_CC);
-
- if (parent_value && parent_value != obj->proxy->container) {
- Z_ADDREF_P(parent_value);
- zval_ptr_dtor(&obj->proxy->container);
- obj->proxy->container = parent_value;
- }
- }
-
- switch (Z_TYPE_P(obj->proxy->container)) {
- case IS_OBJECT:
- zend_update_property(Z_OBJCE_P(obj->proxy->container),
- obj->proxy->container, obj->proxy->member_str,
- obj->proxy->member_len, value TSRMLS_CC);
- break;
-
- case IS_ARRAY:
- Z_ADDREF_P(value);
- zend_symtable_update(Z_ARRVAL_P(obj->proxy->container),
- obj->proxy->member_str, obj->proxy->member_len + 1,
- (void *) &value, sizeof(zval *), NULL);
- break;
- }
-
- if (obj->parent) {
- zval *zparent;
- MAKE_STD_ZVAL(zparent);
- zparent->type = IS_OBJECT;
- zparent->value.obj = obj->parent->zv;
- zend_objects_store_add_ref_by_handle(
- obj->parent->zv.handle TSRMLS_CC);
- set_proxied_value(&zparent, obj->proxy->container TSRMLS_CC);
- zval_ptr_dtor(&zparent);
- }
- }
-
- debug_propro(-1, "set", *object, NULL, NULL TSRMLS_CC);
-}
-
-static zval *read_dimension(zval *object, zval *offset, int type TSRMLS_DC)
-{
- zval *value = NULL;
- zval *proxied_value;
- zval *o = offset;
-
- debug_propro(1, type == BP_VAR_R ? "dim_read" : "dim_read_ref", object,
- offset, NULL TSRMLS_CC);
-
- proxied_value = get_proxied_value(object TSRMLS_CC);
- convert_to_string_ex(&o);
-
- if (BP_VAR_R == type && proxied_value) {
- if (Z_TYPE_P(proxied_value) == IS_ARRAY) {
- zval **hash_value;
- ZEND_RESULT_CODE rv = zend_symtable_find(Z_ARRVAL_P(proxied_value),
- Z_STRVAL_P(o), Z_STRLEN_P(o), (void *) &hash_value);
-
- if (SUCCESS == rv) {
- Z_ADDREF_PP(hash_value);
- value = *hash_value;
- }
- }
- } else {
- php_property_proxy_t *proxy;
- php_property_proxy_object_t *proxy_obj;
-
- if (proxied_value) {
- convert_to_array(proxied_value);
- Z_ADDREF_P(proxied_value);
- } else {
- MAKE_STD_ZVAL(proxied_value);
- array_init(proxied_value);
- set_proxied_value(&object, proxied_value TSRMLS_CC);
- }
-
- proxy = php_property_proxy_init(proxied_value, Z_STRVAL_P(o),
- Z_STRLEN_P(o) TSRMLS_CC);
- zval_ptr_dtor(&proxied_value);
- MAKE_STD_ZVAL(value);
- Z_SET_REFCOUNT_P(value, 0);
- value->type = IS_OBJECT;
- value->value.obj = php_property_proxy_object_new_ex(
- php_property_proxy_get_class_entry(), proxy,
- &proxy_obj TSRMLS_CC);
- proxy_obj->parent = zend_object_store_get_object(object TSRMLS_CC);
- zend_objects_store_add_ref_by_handle(
- proxy_obj->parent->zv.handle TSRMLS_CC);
- }
- if (o && o != offset) {
- zval_ptr_dtor(&o);
- }
-
- debug_propro(-1, type == BP_VAR_R ? "dim_read" : "dim_read_ref", object,
- offset, value TSRMLS_CC);
-
- return value;
-}
-
-static int has_dimension(zval *object, zval *offset, int check_empty TSRMLS_DC)
-{
- zval *proxied_value;
- int exists = 0;
-
- debug_propro(1, "dim_exists", object, offset, NULL TSRMLS_CC);
-
- proxied_value = get_proxied_value(object TSRMLS_CC);
- if (!proxied_value) {
- exists = 0;
- } else {
- zval *o = offset;
-
- convert_to_string_ex(&o);
-
- if (Z_TYPE_P(proxied_value) == IS_ARRAY) {
- zval **zentry;
- ZEND_RESULT_CODE rv = zend_symtable_find(Z_ARRVAL_P(proxied_value), Z_STRVAL_P(o), Z_STRLEN_P(o) + 1, (void *) &zentry);
-
- if (SUCCESS != rv) {
- exists = 0;
- } else {
- if (check_empty) {
- exists = Z_TYPE_PP(zentry) != IS_NULL;
- } else {
- exists = 1;
- }
- }
- }
-
- if (o != offset) {
- zval_ptr_dtor(&o);
- }
- }
-
- debug_propro(-1, "dim_exists", object, offset, NULL TSRMLS_CC);
-
- return exists;
-}
-
-static void write_dimension(zval *object, zval *offset, zval *value TSRMLS_DC)
-{
- zval *proxied_value, *o = offset;
-
- debug_propro(1, "dim_write", object, offset, value TSRMLS_CC);
-
- proxied_value = get_proxied_value(object TSRMLS_CC);
-
- if (proxied_value) {
- convert_to_array(proxied_value);
- Z_ADDREF_P(proxied_value);
- } else {
- MAKE_STD_ZVAL(proxied_value);
- array_init(proxied_value);
- }
-
- if (Z_REFCOUNT_P(value) > 1) {
- SEPARATE_ZVAL(&value);
- }
- Z_ADDREF_P(value);
-
- if (o) {
- convert_to_string_ex(&o);
- zend_symtable_update(Z_ARRVAL_P(proxied_value), Z_STRVAL_P(o),
- Z_STRLEN_P(o) + 1, (void *) &value, sizeof(zval *), NULL);
- } else {
- zend_hash_next_index_insert(Z_ARRVAL_P(proxied_value), (void *) &value,
- sizeof(zval *), NULL);
- }
-
- if (o && o != offset) {
- zval_ptr_dtor(&o);
- }
-
- set_proxied_value(&object, proxied_value TSRMLS_CC);
-
- debug_propro(-1, "dim_write", object, offset, proxied_value TSRMLS_CC);
-
- zval_ptr_dtor(&proxied_value);
-}
-
-static void unset_dimension(zval *object, zval *offset TSRMLS_DC)
-{
- zval *proxied_value;
-
- debug_propro(1, "dim_unset", object, offset, NULL TSRMLS_CC);
-
- proxied_value = get_proxied_value(object TSRMLS_CC);
-
- if (proxied_value && Z_TYPE_P(proxied_value) == IS_ARRAY) {
- zval *o = offset;
- ZEND_RESULT_CODE rv;
-
- convert_to_string_ex(&o);
- rv = zend_symtable_del(Z_ARRVAL_P(proxied_value), Z_STRVAL_P(o),
- Z_STRLEN_P(o) + 1);
-
- if (SUCCESS == rv) {
- set_proxied_value(&object, proxied_value TSRMLS_CC);
- }
-
- if (o != offset) {
- zval_ptr_dtor(&o);
- }
- }
-
- debug_propro(-1, "dim_unset", object, offset, proxied_value TSRMLS_CC);
-}
-
-ZEND_BEGIN_ARG_INFO_EX(ai_propro_construct, 0, 0, 2)
- ZEND_ARG_INFO(1, object)
- ZEND_ARG_INFO(0, member)
- ZEND_ARG_OBJ_INFO(0, parent, php\\PropertyProxy, 1)
-ZEND_END_ARG_INFO();
-static PHP_METHOD(propro, __construct) {
- zend_error_handling zeh;
- zval *container, *parent = NULL;
- char *member_str;
- int member_len;
-
- zend_replace_error_handling(EH_THROW, NULL, &zeh TSRMLS_CC);
- if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zs|O!",
- &container, &member_str, &member_len, &parent,
- php_property_proxy_class_entry)) {
- php_property_proxy_object_t *obj;
-
- obj = zend_object_store_get_object(getThis() TSRMLS_CC);
- obj->proxy = php_property_proxy_init(container, member_str,
- member_len TSRMLS_CC);
- if (parent) {
- zend_objects_store_add_ref(parent TSRMLS_CC);
- obj->parent = zend_object_store_get_object(parent TSRMLS_CC);
- }
- }
- zend_restore_error_handling(&zeh TSRMLS_CC);
-}
-
-static const zend_function_entry php_property_proxy_method_entry[] = {
- PHP_ME(propro, __construct, ai_propro_construct, ZEND_ACC_PUBLIC)
- {0}
-};
-
-static PHP_MINIT_FUNCTION(propro)
-{
- zend_class_entry ce = {0};
-
- INIT_NS_CLASS_ENTRY(ce, "php", "PropertyProxy",
- php_property_proxy_method_entry);
- php_property_proxy_class_entry = zend_register_internal_class_ex(&ce, NULL,
- NULL TSRMLS_CC);
- php_property_proxy_class_entry->create_object =
- php_property_proxy_object_new;
- php_property_proxy_class_entry->ce_flags |= ZEND_ACC_FINAL_CLASS;
-
- memcpy(&php_property_proxy_object_handlers, zend_get_std_object_handlers(),
- sizeof(zend_object_handlers));
- php_property_proxy_object_handlers.set = set_proxied_value;
- php_property_proxy_object_handlers.get = get_proxied_value;
- php_property_proxy_object_handlers.cast_object = cast_proxied_value;
- php_property_proxy_object_handlers.read_dimension = read_dimension;
- php_property_proxy_object_handlers.write_dimension = write_dimension;
- php_property_proxy_object_handlers.has_dimension = has_dimension;
- php_property_proxy_object_handlers.unset_dimension = unset_dimension;
-
- return SUCCESS;
-}
-
-PHP_MINFO_FUNCTION(propro)
-{
- php_info_print_table_start();
- php_info_print_table_header(2, "Property proxy support", "enabled");
- php_info_print_table_row(2, "Extension version", PHP_PROPRO_VERSION);
- php_info_print_table_end();
-}
-
-static const zend_function_entry propro_functions[] = {
- {0}
-};
-
-zend_module_entry propro_module_entry = {
- STANDARD_MODULE_HEADER,
- "propro",
- propro_functions,
- PHP_MINIT(propro),
- NULL,
- NULL,
- NULL,
- PHP_MINFO(propro),
- PHP_PROPRO_VERSION,
- STANDARD_MODULE_PROPERTIES
-};
-
-#ifdef COMPILE_DL_PROPRO
-ZEND_GET_MODULE(propro)
-#endif
-
-
-/*
- * Local variables:
- * tab-width: 4
- * c-basic-offset: 4
- * End:
- * vim600: noet sw=4 ts=4 fdm=marker
- * vim<600: noet sw=4 ts=4
- */