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mirror of https://github.com/phpv8/v8js.git synced 2024-12-22 09:21:52 +00:00

Rework JavaScript wrapper for PHP objects.

Use the NamedPropertyHandler feature of v8 to wrap accesses to PHP properties
and methods from JavaScript.  This enables us to support property
set/delete/query.

The `in` and `delete` operators in JavaScript work like the `isset()` and
`unset()` functions in PHP.  In particular, a PHP property with a null
value will not be `in` the JavaScript object. (This holds when enumerating
all properties of an object as well.)

Because JavaScript has a single namespace for both properties and methods,
we allow the use of the `__call` method on a PHP object (even if the
PHP class does not natively define the `__call` magic function) in order
to unambiguously invoke a method.  Similarly, you can prefix a property
name with `$` to unambiguously access the property. (When enumerating all
properties, properties are `$`-prefixed in order to ensure they are not
conflated with method names.)
This commit is contained in:
C. Scott Ananian 2013-10-11 02:15:35 -04:00
parent 0adefa5048
commit f6a6d1e4b5
6 changed files with 473 additions and 218 deletions

View File

@ -154,3 +154,45 @@ Javascript API
// This makes use of the PHP module loader provided via V8Js::setModuleLoader (see PHP API above). // This makes use of the PHP module loader provided via V8Js::setModuleLoader (see PHP API above).
require("path/to/module"); require("path/to/module");
The JavaScript `in` operator, when applied to a wrapped PHP object,
works the same as the PHP `isset()` function. Similarly, when applied
to a wrapped PHP object, JavaScript `delete` works like PHP `unset`.
```php
<?php
class Foo {
var $bar = null;
}
$v8 = new V8Js();
$v8->foo = new Foo;
// This prints "no"
$v8->executeString('print( "bar" in PHP.foo ? "yes" : "no" );');
?>
```
PHP has separate namespaces for properties and methods, while JavaScript
has just one. Usually this isn't an issue, but if you need to you can use
a leading `$` to specify a property, or `__call` to specifically invoke a
method.
```php
<?php
class Foo {
var $bar = "bar";
function bar($what) { echo "I'm a ", $what, "!\n"; }
}
$foo = new Foo;
// This prints 'bar'
echo $foo->bar, "\n";
// This prints "I'm a function!"
$foo->bar("function");
$v8 = new V8Js();
$v8->foo = new Foo;
// This prints 'bar'
$v8->executeString('print(PHP.foo.$bar, "\n");');
// This prints "I'm a function!"
$v8->executeString('PHP.foo.__call("bar", ["function"]);');
?>
```

1
TODO
View File

@ -1,5 +1,6 @@
- Feature: Extension registering from php.ini - Feature: Extension registering from php.ini
- Feature: Thread safety - Feature: Thread safety
- Missing: Indexed property handlers - Missing: Indexed property handlers
- Missing: static properties of PHP objects (on instance.constructor?)
- Bug: exception propagation fails when property getter is set - Bug: exception propagation fails when property getter is set
- Bug: method_exists() leaks when used with V8 objects - Bug: method_exists() leaks when used with V8 objects

View File

@ -43,8 +43,8 @@ var_dump($a->myobj->foo);
===EOF=== ===EOF===
--EXPECT-- --EXPECT--
mytest => function () { [native code] } mytest => function () { [native code] }
foo => ORIGINAL $foo => ORIGINAL
Here be monsters.. Here be monsters..
ORIGINAL CHANGED
string(8) "ORIGINAL" string(7) "CHANGED"
===EOF=== ===EOF===

View File

@ -7,9 +7,9 @@ Test V8::executeString() : Prototype with PHP callbacks
$js = <<<'EOT' $js = <<<'EOT'
String.prototype.test = function(){ return PHP.test(this.toString(), arguments); }; String.prototype.test = function(){ return PHP.test(this.toString(), arguments); };
String.prototype.test_two = function(){ return PHP.test_two.func(this.toString(), arguments); }; String.prototype.test_two = function(){ return PHP.test_two.__call('func', [this.toString(), arguments]); };
Array.prototype.test = function(){ return PHP.test(this.toString(), arguments); }; Array.prototype.test = function(){ return PHP.test(this.toString(), arguments); };
Array.prototype.test_two = function(){ return PHP.test_two.func(this.toString(), arguments); }; Array.prototype.test_two = function(){ return PHP.test_two.__call('func', [this.toString(), arguments]); };
"Foobar".test("foo", "bar"); "Foobar".test("foo", "bar");
"Foobar".test_two("foo", "bar"); "Foobar".test_two("foo", "bar");

View File

@ -198,11 +198,11 @@ array (11) {
object(Closure)#%d { object(Closure)#%d {
function () { [native code] } function () { [native code] }
} }
["date"] => ["$date"] =>
string(19) "1976-09-27 09:00:00" string(19) "1976-09-27 09:00:00"
["timezone_type"] => ["$timezone_type"] =>
int(3) int(3)
["timezone"] => ["$timezone"] =>
string(3) "UTC" string(3) "UTC"
} }
["array"] => ["array"] =>
@ -224,7 +224,7 @@ array (11) {
} }
["phpobject"] => ["phpobject"] =>
object(Foo)#%d (1) { object(Foo)#%d (1) {
["field"] => ["$field"] =>
string(3) "php" string(3) "php"
} }
} }
@ -266,7 +266,7 @@ object(Object)#%d (12) {
} }
["phpobject"] => ["phpobject"] =>
object(Foo)#%d (1) { object(Foo)#%d (1) {
["field"] => ["$field"] =>
string(3) "php" string(3) "php"
} }
} }

View File

@ -20,6 +20,7 @@
extern "C" { extern "C" {
#include "php.h" #include "php.h"
#include "ext/date/php_date.h" #include "ext/date/php_date.h"
#include "ext/standard/php_string.h"
#include "zend_interfaces.h" #include "zend_interfaces.h"
#include "zend_closures.h" #include "zend_closures.h"
} }
@ -57,6 +58,8 @@ typedef std::pair<struct php_v8js_ctx *, const char *> TemplateCacheKey;
typedef v8::Persistent<v8::FunctionTemplate, v8::CopyablePersistentTraits<v8::FunctionTemplate> > TemplateCacheEntry; typedef v8::Persistent<v8::FunctionTemplate, v8::CopyablePersistentTraits<v8::FunctionTemplate> > TemplateCacheEntry;
typedef std::map<TemplateCacheKey, TemplateCacheEntry> TemplateCache; typedef std::map<TemplateCacheKey, TemplateCacheEntry> TemplateCache;
static TemplateCache tpl_map;
/* Callback for PHP methods and functions */ /* Callback for PHP methods and functions */
static void php_v8js_call_php_func(zval *value, zend_class_entry *ce, zend_function *method_ptr, v8::Isolate *isolate, const v8::FunctionCallbackInfo<v8::Value>& info TSRMLS_DC) /* {{{ */ static void php_v8js_call_php_func(zval *value, zend_class_entry *ce, zend_function *method_ptr, v8::Isolate *isolate, const v8::FunctionCallbackInfo<v8::Value>& info TSRMLS_DC) /* {{{ */
{ {
@ -259,126 +262,6 @@ static int _php_v8js_is_assoc_array(HashTable *myht TSRMLS_DC) /* {{{ */
} }
/* }}} */ /* }}} */
static void php_v8js_property_caller(const v8::FunctionCallbackInfo<v8::Value>& info) /* {{{ */
{
v8::Local<v8::Object> self = info.Holder();
v8::Isolate *isolate = reinterpret_cast<v8::Isolate *>(self->GetAlignedPointerFromInternalField(1));
v8::Local<v8::String> cname = info.Callee()->GetName()->ToString();
v8::Local<v8::Value> value;
v8::Local<v8::String> cb_func = v8::Local<v8::String>::Cast(info.Data());
value = self->GetHiddenValue(cb_func);
if (!value.IsEmpty() && value->IsFunction())
{
int argc = info.Length(), i = 0;
v8::Local<v8::Value> argv[argc];
v8::Local<v8::Function> cb = v8::Local<v8::Function>::Cast(value);
if (cb_func->Equals(V8JS_SYM(ZEND_INVOKE_FUNC_NAME))) {
for (; i < argc; ++i) {
argv[i] = info[i];
}
value = cb->Call(self, argc, argv);
}
else /* __call() */
{
v8::Local<v8::Array> argsarr = v8::Array::New(argc);
for (; i < argc; ++i) {
argsarr->Set(i, info[i]);
}
v8::Local<v8::Value> argsv[2] = { cname, argsarr };
value = cb->Call(self, 2, argsv);
}
}
if (info.IsConstructCall()) {
if (!value.IsEmpty() && !value->IsNull()) {
info.GetReturnValue().Set(value);
return;
}
info.GetReturnValue().Set(self);
return;
}
info.GetReturnValue().Set(value);
}
/* }}} */
static void php_v8js_property_getter(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Value> &info) /* {{{ */
{
v8::Local<v8::Object> self = info.Holder();
v8::Local<v8::Value> value;
v8::Local<v8::Function> cb;
/* Check first if JS object has the named property */
value = self->GetRealNamedProperty(property);
if (!value.IsEmpty()) {
info.GetReturnValue().Set(value);
return;
}
v8::Isolate *isolate = reinterpret_cast<v8::Isolate *>(self->GetAlignedPointerFromInternalField(1));
/* If __get() is set for PHP object, call it */
value = self->GetHiddenValue(V8JS_SYM(ZEND_GET_FUNC_NAME));
if (!value.IsEmpty() && value->IsFunction()) {
cb = v8::Local<v8::Function>::Cast(value);
v8::Local<v8::Value> argv[1] = {property};
value = cb->Call(self, 1, argv);
}
/* If __get() does not exist or returns NULL, create new function with callback for __call() */
if ((value.IsEmpty() || value->IsNull()) && info.Data()->IsTrue()) {
v8::Local<v8::FunctionTemplate> cb_t = v8::FunctionTemplate::New(php_v8js_property_caller, V8JS_SYM(ZEND_CALL_FUNC_NAME));
cb = cb_t->GetFunction();
cb->SetName(property);
info.GetReturnValue().Set(cb);
return;
}
info.GetReturnValue().Set(value);
}
/* }}} */
static void php_v8js_property_query(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Integer> &info) /* {{{ */
{
v8::Local<v8::Object> self = info.Holder();
v8::Isolate *isolate = reinterpret_cast<v8::Isolate *>(self->GetAlignedPointerFromInternalField(1));
v8::Local<v8::Value> value;
/* Return early if property is set in JS object */
if (self->HasRealNamedProperty(property)) {
info.GetReturnValue().Set(V8JS_INT(v8::ReadOnly));
return;
}
value = self->GetHiddenValue(V8JS_SYM(ZEND_ISSET_FUNC_NAME));
if (!value.IsEmpty() && value->IsFunction()) {
v8::Local<v8::Function> cb = v8::Local<v8::Function>::Cast(value);
v8::Local<v8::Value> argv[1] = {property};
value = cb->Call(self, 1, argv);
}
info.GetReturnValue().Set((!value.IsEmpty() && value->IsTrue()) ? V8JS_INT(v8::ReadOnly) : v8::Local<v8::Integer>());
}
/* }}} */
/* These are not defined by Zend */
#define ZEND_WAKEUP_FUNC_NAME "__wakeup"
#define ZEND_SLEEP_FUNC_NAME "__sleep"
#define ZEND_SET_STATE_FUNC_NAME "__set_state"
#define IS_MAGIC_FUNC(mname) \
((key_len == sizeof(mname)) && \
!strncasecmp(key, mname, key_len - 1))
#define PHP_V8JS_CALLBACK(mptr, tmpl) \
v8::FunctionTemplate::New(php_v8js_php_callback, v8::External::New(mptr), v8::Signature::New(tmpl))->GetFunction()
static void php_v8js_weak_object_callback(v8::Isolate *isolate, v8::Persistent<v8::Object> *object, zval *value) static void php_v8js_weak_object_callback(v8::Isolate *isolate, v8::Persistent<v8::Object> *object, zval *value)
{ {
TSRMLS_FETCH(); TSRMLS_FETCH();
@ -394,6 +277,406 @@ static void php_v8js_weak_object_callback(v8::Isolate *isolate, v8::Persistent<v
object->Dispose(); object->Dispose();
} }
/* These are not defined by Zend */
#define ZEND_WAKEUP_FUNC_NAME "__wakeup"
#define ZEND_SLEEP_FUNC_NAME "__sleep"
#define ZEND_SET_STATE_FUNC_NAME "__set_state"
#define IS_MAGIC_FUNC(mname) \
((key_len == sizeof(mname)) && \
!strncasecmp(key, mname, key_len - 1))
#define PHP_V8JS_CALLBACK(mptr, tmpl) \
v8::FunctionTemplate::New(php_v8js_php_callback, v8::External::New(mptr), v8::Signature::New(tmpl))->GetFunction()
static void php_v8js_named_property_enumerator(const v8::PropertyCallbackInfo<v8::Array> &info) /* {{{ */
{
// note: 'special' properties like 'constructor' are not enumerated.
v8::Local<v8::Object> self = info.Holder();
v8::Local<v8::Array> result = v8::Array::New(0);
uint32_t result_len = 0;
zend_class_entry *ce;
zend_function *method_ptr;
HashTable *proptable;
HashPosition pos;
char *key = NULL;
uint key_len;
ulong index;
zval *object = reinterpret_cast<zval *>(self->GetAlignedPointerFromInternalField(0));
v8::Isolate *isolate = reinterpret_cast<v8::Isolate *>(self->GetAlignedPointerFromInternalField(1));
ce = Z_OBJCE_P(object);
/* enumerate all methods */
zend_hash_internal_pointer_reset_ex(&ce->function_table, &pos);
for (;; zend_hash_move_forward_ex(&ce->function_table, &pos)) {
if (zend_hash_get_current_key_ex(&ce->function_table, &key, &key_len, &index, 0, &pos) != HASH_KEY_IS_STRING ||
zend_hash_get_current_data_ex(&ce->function_table, (void **) &method_ptr, &pos) == FAILURE
) {
break;
}
if ((method_ptr->common.fn_flags & ZEND_ACC_PUBLIC) == 0) {
/* Allow only public methods */
continue;
}
if ((method_ptr->common.fn_flags & (ZEND_ACC_CTOR|ZEND_ACC_DTOR|ZEND_ACC_CLONE)) != 0) {
/* no __construct, __destruct(), or __clone() functions */
continue;
}
// hide (do not enumerate) other PHP magic functions
if (IS_MAGIC_FUNC(ZEND_CALLSTATIC_FUNC_NAME) ||
IS_MAGIC_FUNC(ZEND_SLEEP_FUNC_NAME) ||
IS_MAGIC_FUNC(ZEND_WAKEUP_FUNC_NAME) ||
IS_MAGIC_FUNC(ZEND_SET_STATE_FUNC_NAME) ||
IS_MAGIC_FUNC(ZEND_GET_FUNC_NAME) ||
IS_MAGIC_FUNC(ZEND_SET_FUNC_NAME) ||
IS_MAGIC_FUNC(ZEND_UNSET_FUNC_NAME) ||
IS_MAGIC_FUNC(ZEND_CALL_FUNC_NAME) ||
IS_MAGIC_FUNC(ZEND_INVOKE_FUNC_NAME) ||
IS_MAGIC_FUNC(ZEND_ISSET_FUNC_NAME)) {
continue;
}
v8::Local<v8::String> method_name = V8JS_STR(method_ptr->common.function_name);
// rename PHP special method names to JS equivalents.
if (IS_MAGIC_FUNC(ZEND_TOSTRING_FUNC_NAME)) {
method_name = V8JS_SYM("toString");
}
result->Set(result_len++, method_name);
}
/* enumerate all properties */
/* Z_OBJPROP uses the get_properties handler */
proptable = Z_OBJPROP_P(object);
zend_hash_internal_pointer_reset_ex(proptable, &pos);
for (;; zend_hash_move_forward_ex(proptable, &pos)) {
int i = zend_hash_get_current_key_ex(proptable, &key, &key_len, &index, 0, &pos);
if (i == HASH_KEY_NON_EXISTANT)
break;
// for consistency with the 'in' operator, skip properties whose
// value IS_NULL (like isset does)
zval **data;
if (zend_hash_get_current_data_ex(proptable, (void **) &data, &pos) == SUCCESS &&
ZVAL_IS_NULL(*data))
continue;
if (i == HASH_KEY_IS_STRING) {
/* skip protected and private members */
if (key[0] == '\0') {
continue;
}
// prefix enumerated property names with '$' so they can be
// dereferenced unambiguously (ie, don't conflict with method
// names)
char prefixed[key_len + 1];
prefixed[0] = '$';
strncpy(prefixed + 1, key, key_len);
result->Set(result_len++, V8JS_STRL(prefixed, key_len));
} else {
// even numeric indices are enumerated as strings in JavaScript
result->Set(result_len++, V8JS_FLOAT((double) index)->ToString());
}
}
/* done */
info.GetReturnValue().Set(result);
}
/* }}} */
static void php_v8js_invoke_callback(const v8::FunctionCallbackInfo<v8::Value>& info) /* {{{ */
{
v8::Local<v8::Object> self = info.Holder();
v8::Local<v8::Function> cb = v8::Local<v8::Function>::Cast(info.Data());
int argc = info.Length(), i;
v8::Local<v8::Value> argv[argc];
v8::Local<v8::Value> result;
for (i=0; i<argc; i++) {
argv[i] = info[i];
}
if (info.IsConstructCall() && self->GetConstructor()->IsFunction()) {
// this is a 'new obj(...)' invocation. Handle this like PHP does;
// that is, treat it as synonymous with 'new obj.constructor(...)'
cb = v8::Local<v8::Function>::Cast(self->GetConstructor());
result = cb->NewInstance(argc, argv);
} else {
result = cb->Call(self, argc, argv);
}
info.GetReturnValue().Set(result);
}
/* }}} */
// this is a magic '__call' implementation for PHP classes which don't actually
// have a '__call' magic function. This way we can always force a method
// call (as opposed to a property get) from JavaScript using __call.
static void php_v8js_fake_call_impl(const v8::FunctionCallbackInfo<v8::Value>& info) /* {{{ */
{
v8::Local<v8::Object> self = info.Holder();
v8::Handle<v8::Value> return_value;
char *error;
int error_len;
zend_class_entry *ce;
zval *object = reinterpret_cast<zval *>(self->GetAlignedPointerFromInternalField(0));
v8::Isolate *isolate = reinterpret_cast<v8::Isolate *>(self->GetAlignedPointerFromInternalField(1));
ce = Z_OBJCE_P(object);
// first arg is method name, second arg is array of args.
if (info.Length() < 2) {
error_len = spprintf(&error, 0,
"%s::__call expects 2 parameters, %d given",
ce->name, (int) info.Length());
return_value = V8JS_THROW(TypeError, error, error_len);
efree(error);
info.GetReturnValue().Set(return_value);
return;
}
if (!info[1]->IsArray()) {
error_len = spprintf(&error, 0,
"%s::__call expects 2nd parameter to be an array",
ce->name);
return_value = V8JS_THROW(TypeError, error, error_len);
efree(error);
info.GetReturnValue().Set(return_value);
return;
}
v8::String::Utf8Value str(info[0]->ToString());
const char *method_name = ToCString(str);
uint method_name_len = strlen(method_name);
v8::Local<v8::Array> args = v8::Local<v8::Array>::Cast(info[1]);
if (args->Length() > 1000000) {
// prevent overflow, since args->Length() is a uint32_t and args
// in the Function->Call method below is a (signed) int.
error_len = spprintf(&error, 0,
"%s::__call expects fewer than a million arguments",
ce->name);
return_value = V8JS_THROW(TypeError, error, error_len);
efree(error);
info.GetReturnValue().Set(return_value);
return;
}
// okay, look up the method name and manually invoke it.
const zend_object_handlers *h = Z_OBJ_HT_P(object);
zend_function *method_ptr =
h->get_method(&object, (char*)method_name, method_name_len,
NULL TSRMLS_DC);
if (method_ptr == NULL ||
(method_ptr->common.fn_flags & ZEND_ACC_PUBLIC) == 0 ||
(method_ptr->common.fn_flags & (ZEND_ACC_CTOR|ZEND_ACC_DTOR|ZEND_ACC_CLONE)) != 0) {
error_len = spprintf(&error, 0,
"%s::__call to %s method %s", ce->name,
(method_ptr == NULL) ? "undefined" : "non-public", method_name);
return_value = V8JS_THROW(TypeError, error, error_len);
efree(error);
info.GetReturnValue().Set(return_value);
return;
}
php_v8js_ctx *ctx = (php_v8js_ctx *) isolate->GetData();
try {
v8::Local<v8::FunctionTemplate> tmpl =
v8::Local<v8::FunctionTemplate>::New
(isolate, tpl_map.at(std::make_pair(ctx, ce->name)));
// use php_v8js_php_callback to actually execute the method
v8::Local<v8::Function> cb = PHP_V8JS_CALLBACK(method_ptr, tmpl);
uint32_t i, argc = args->Length();
v8::Local<v8::Value> argv[argc];
for (i=0; i<argc; i++) {
argv[i] = args->Get(i);
}
return_value = cb->Call(info.This(), (int) argc, argv);
} catch (const std::out_of_range &) {
/* shouldn't fail! but bail safely */
return_value = V8JS_NULL;
}
info.GetReturnValue().Set(return_value);
}
/* }}} */
typedef enum {
V8JS_PROP_GETTER,
V8JS_PROP_SETTER,
V8JS_PROP_QUERY,
V8JS_PROP_DELETER
} property_op_t;
/* This method handles named property and method get/set/query/delete. */
template<typename T>
static inline v8::Local<v8::Value> php_v8js_named_property_callback(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<T> &info, property_op_t callback_type, v8::Local<v8::Value> set_value = v8::Local<v8::Value>()) /* {{{ */
{
v8::String::Utf8Value cstr(property);
const char *name = ToCString(cstr);
uint name_len = strlen(name);
char *lower = estrndup(name, name_len);
const char *method_name;
uint method_name_len;
v8::Local<v8::Object> self = info.Holder();
v8::Local<v8::Value> ret_value;
v8::Local<v8::Function> cb;
zend_class_entry *scope = NULL; /* XXX? */
zend_class_entry *ce;
zend_function *method_ptr = NULL;
zval *php_value;
zval *object = reinterpret_cast<zval *>(self->GetAlignedPointerFromInternalField(0));
v8::Isolate *isolate = reinterpret_cast<v8::Isolate *>(self->GetAlignedPointerFromInternalField(1));
ce = Z_OBJCE_P(object);
/* First, check the (case-insensitive) method table */
php_strtolower(lower, name_len);
method_name = lower;
method_name_len = name_len;
// toString() -> __tostring()
if (name_len == 8 && strcmp(name, "toString") == 0) {
method_name = ZEND_TOSTRING_FUNC_NAME;
method_name_len = sizeof(ZEND_TOSTRING_FUNC_NAME) - 1;
}
bool is_constructor = (name_len == 11 && strcmp(name, "constructor") == 0);
bool is_magic_call = (method_name_len == 6 && strcmp(method_name, "__call") == 0);
if (is_constructor ||
(name[0] != '$' /* leading '$' means property, not method */ &&
zend_hash_find(&ce->function_table, method_name, method_name_len + 1, (void**)&method_ptr) == SUCCESS &&
((method_ptr->common.fn_flags & ZEND_ACC_PUBLIC) != 0) && /* Allow only public methods */
((method_ptr->common.fn_flags & (ZEND_ACC_CTOR|ZEND_ACC_DTOR|ZEND_ACC_CLONE)) == 0) /* no __construct, __destruct(), or __clone() functions */
) || (method_ptr=NULL, is_magic_call)
) {
if (callback_type == V8JS_PROP_GETTER) {
if (is_constructor) {
ret_value = self->GetConstructor();
} else {
php_v8js_ctx *ctx = (php_v8js_ctx *) isolate->GetData();
try {
v8::Local<v8::FunctionTemplate> tmpl =
v8::Local<v8::FunctionTemplate>::New
(isolate, tpl_map.at(std::make_pair(ctx, ce->name)));
if (is_magic_call && method_ptr==NULL) {
// Fake __call implementation
// (only use this if method_ptr==NULL, which means
// there is no actual PHP __call() implementation)
v8::Local<v8::Function> cb =
v8::FunctionTemplate::New(
php_v8js_fake_call_impl, V8JS_NULL,
v8::Signature::New(tmpl))->GetFunction();
cb->SetName(property);
ret_value = cb;
} else {
ret_value = PHP_V8JS_CALLBACK(method_ptr, tmpl);
}
} catch (const std::out_of_range &) {
/* shouldn't fail! but bail safely */
ret_value = V8JS_NULL;
}
}
} else if (callback_type == V8JS_PROP_QUERY) {
// methods are not enumerable
ret_value = v8::Integer::NewFromUnsigned(v8::ReadOnly|v8::DontEnum|v8::DontDelete, isolate);
} else if (callback_type == V8JS_PROP_SETTER) {
ret_value = set_value; // lie. this field is read-only.
} else if (callback_type == V8JS_PROP_DELETER) {
ret_value = V8JS_BOOL(false);
} else {
/* shouldn't reach here! but bail safely */
ret_value = v8::Handle<v8::Value>();
}
} else {
if (name[0]=='$') {
// this is a property (not a method)
name++; name_len--;
}
if (callback_type == V8JS_PROP_GETTER) {
/* Nope, not a method -- must be a (case-sensitive) property */
php_value = zend_read_property(scope, object, name, name_len, true);
// special case 'NULL' and return an empty value (indicating that
// we don't intercept this property) if the property doesn't
// exist.
if (ZVAL_IS_NULL(php_value)) {
const zend_object_handlers *h = Z_OBJ_HT_P(object);
zval *prop;
MAKE_STD_ZVAL(prop);
ZVAL_STRINGL(prop, name, name_len, 1);
if (!h->has_property(object, prop, 2, NULL TSRMLS_CC))
ret_value = v8::Handle<v8::Value>();
else {
ret_value = V8JS_NULL;
}
zval_ptr_dtor(&prop);
} else {
// wrap it
ret_value = zval_to_v8js(php_value, isolate TSRMLS_CC);
}
/* php_value is the value in the property table; we don't own a
* reference to it (and so don't have to deref) */
} else if (callback_type == V8JS_PROP_SETTER) {
MAKE_STD_ZVAL(php_value);
if (v8js_to_zval(set_value, php_value, 0, isolate) == SUCCESS) {
zend_update_property(scope, object, name, name_len, php_value);
ret_value = set_value;
} else {
ret_value = v8::Handle<v8::Value>();
}
} else if (callback_type == V8JS_PROP_QUERY ||
callback_type == V8JS_PROP_DELETER) {
const zend_object_handlers *h = Z_OBJ_HT_P(object);
zval *prop;
MAKE_STD_ZVAL(prop);
ZVAL_STRINGL(prop, name, name_len, 1);
if (callback_type == V8JS_PROP_QUERY) {
if (h->has_property(object, prop, 0, NULL TSRMLS_CC)) {
ret_value = v8::Integer::NewFromUnsigned(v8::None);
} else {
ret_value = v8::Handle<v8::Value>(); // empty handle
}
} else {
h->unset_property(object, prop, NULL TSRMLS_CC);
ret_value = V8JS_BOOL(true);
}
zval_ptr_dtor(&prop);
} else {
/* shouldn't reach here! but bail safely */
ret_value = v8::Handle<v8::Value>();
}
}
efree(lower);
return ret_value;
}
/* }}} */
static void php_v8js_named_property_getter(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Value> &info) /* {{{ */
{
info.GetReturnValue().Set(php_v8js_named_property_callback(property, info, V8JS_PROP_GETTER));
}
/* }}} */
static void php_v8js_named_property_setter(v8::Local<v8::String> property, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value> &info) /* {{{ */
{
info.GetReturnValue().Set(php_v8js_named_property_callback(property, info, V8JS_PROP_SETTER, value));
}
/* }}} */
static void php_v8js_named_property_query(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Integer> &info) /* {{{ */
{
v8::Local<v8::Value> r = php_v8js_named_property_callback(property, info, V8JS_PROP_QUERY);
if (!r.IsEmpty()) {
info.GetReturnValue().Set(r->ToInteger());
}
}
/* }}} */
static void php_v8js_named_property_deleter(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Boolean> &info) /* {{{ */
{
v8::Local<v8::Value> r = php_v8js_named_property_callback(property, info, V8JS_PROP_DELETER);
if (!r.IsEmpty()) {
info.GetReturnValue().Set(r->ToBoolean());
}
}
/* }}} */
static v8::Handle<v8::Value> php_v8js_hash_to_jsobj(zval *value, v8::Isolate *isolate TSRMLS_DC) /* {{{ */ static v8::Handle<v8::Value> php_v8js_hash_to_jsobj(zval *value, v8::Isolate *isolate TSRMLS_DC) /* {{{ */
{ {
v8::Handle<v8::Object> newobj; v8::Handle<v8::Object> newobj;
@ -404,7 +687,6 @@ static v8::Handle<v8::Value> php_v8js_hash_to_jsobj(zval *value, v8::Isolate *is
HashTable *myht; HashTable *myht;
HashPosition pos; HashPosition pos;
zend_class_entry *ce = NULL; zend_class_entry *ce = NULL;
zend_function *method_ptr, *call_ptr = NULL, *get_ptr = NULL, *invoke_ptr = NULL, *isset_ptr = NULL;
if (Z_TYPE_P(value) == IS_ARRAY) { if (Z_TYPE_P(value) == IS_ARRAY) {
myht = HASH_OF(value); myht = HASH_OF(value);
@ -427,16 +709,12 @@ static v8::Handle<v8::Value> php_v8js_hash_to_jsobj(zval *value, v8::Isolate *is
} else if (ce) { } else if (ce) {
php_v8js_ctx *ctx = (php_v8js_ctx *) isolate->GetData(); php_v8js_ctx *ctx = (php_v8js_ctx *) isolate->GetData();
v8::Local<v8::FunctionTemplate> new_tpl; v8::Local<v8::FunctionTemplate> new_tpl;
bool cached_tpl = true;
static TemplateCache tpl_map;
try { try {
new_tpl = v8::Local<v8::FunctionTemplate>::New new_tpl = v8::Local<v8::FunctionTemplate>::New
(isolate, tpl_map.at(std::make_pair(ctx, ce->name))); (isolate, tpl_map.at(std::make_pair(ctx, ce->name)));
} }
catch (const std::out_of_range &) { catch (const std::out_of_range &) {
cached_tpl = false;
/* No cached v8::FunctionTemplate available as of yet, create one. */ /* No cached v8::FunctionTemplate available as of yet, create one. */
new_tpl = v8::FunctionTemplate::New(); new_tpl = v8::FunctionTemplate::New();
@ -450,77 +728,28 @@ static v8::Handle<v8::Value> php_v8js_hash_to_jsobj(zval *value, v8::Isolate *is
/* Got a closure, mustn't cache ... */ /* Got a closure, mustn't cache ... */
new_tpl->InstanceTemplate()->SetCallAsFunctionHandler(php_v8js_php_callback); new_tpl->InstanceTemplate()->SetCallAsFunctionHandler(php_v8js_php_callback);
} else { } else {
new_tpl->InstanceTemplate()->SetNamedPropertyHandler
(php_v8js_named_property_getter, /* getter */
php_v8js_named_property_setter, /* setter */
php_v8js_named_property_query, /* query */
php_v8js_named_property_deleter, /* deleter */
php_v8js_named_property_enumerator, /* enumerator */
V8JS_NULL /* data */
);
// add __invoke() handler
zend_function *invoke_method_ptr;
if (zend_hash_find(&ce->function_table, ZEND_INVOKE_FUNC_NAME,
sizeof(ZEND_INVOKE_FUNC_NAME),
(void**)&invoke_method_ptr) == SUCCESS &&
invoke_method_ptr->common.fn_flags & ZEND_ACC_PUBLIC) {
new_tpl->InstanceTemplate()->SetCallAsFunctionHandler(php_v8js_invoke_callback, PHP_V8JS_CALLBACK(invoke_method_ptr, new_tpl));
}
/* Add new v8::FunctionTemplate to tpl_map, as long as it is not a closure. */ /* Add new v8::FunctionTemplate to tpl_map, as long as it is not a closure. */
TemplateCacheEntry tce(isolate, new_tpl); TemplateCacheEntry tce(isolate, new_tpl);
tpl_map[std::make_pair(ctx, ce->name)] = tce; tpl_map[std::make_pair(ctx, ce->name)] = tce;
} }
} }
if (ce != zend_ce_closure) {
/* Attach object methods to the instance template. */
zend_hash_internal_pointer_reset_ex(&ce->function_table, &pos);
for (;; zend_hash_move_forward_ex(&ce->function_table, &pos)) {
if (zend_hash_get_current_key_ex(&ce->function_table, &key, &key_len, &index, 0, &pos) != HASH_KEY_IS_STRING ||
zend_hash_get_current_data_ex(&ce->function_table, (void **) &method_ptr, &pos) == FAILURE
) {
break;
}
if ((method_ptr->common.fn_flags & ZEND_ACC_PUBLIC) && /* Allow only public methods */
(method_ptr->common.fn_flags & ZEND_ACC_CTOR) == 0 && /* ..and no __construct() */
(method_ptr->common.fn_flags & ZEND_ACC_DTOR) == 0 && /* ..or __destruct() */
(method_ptr->common.fn_flags & ZEND_ACC_CLONE) == 0 /* ..or __clone() functions */
) {
/* Override native toString() with __tostring() if it is set in passed object */
if (!cached_tpl && IS_MAGIC_FUNC(ZEND_TOSTRING_FUNC_NAME)) {
new_tpl->InstanceTemplate()->Set(V8JS_SYM("toString"), PHP_V8JS_CALLBACK(method_ptr, new_tpl));
/* TODO: __set(), __unset() disabled as JS is not allowed to modify the passed PHP object yet.
* __sleep(), __wakeup(), __set_state() are always ignored */
} else if (
IS_MAGIC_FUNC(ZEND_CALLSTATIC_FUNC_NAME)|| /* TODO */
IS_MAGIC_FUNC(ZEND_SLEEP_FUNC_NAME) ||
IS_MAGIC_FUNC(ZEND_WAKEUP_FUNC_NAME) ||
IS_MAGIC_FUNC(ZEND_SET_STATE_FUNC_NAME) ||
IS_MAGIC_FUNC(ZEND_SET_FUNC_NAME) ||
IS_MAGIC_FUNC(ZEND_UNSET_FUNC_NAME)
) {
/* Register all magic function as hidden with lowercase name */
} else if (IS_MAGIC_FUNC(ZEND_GET_FUNC_NAME)) {
get_ptr = method_ptr;
} else if (IS_MAGIC_FUNC(ZEND_CALL_FUNC_NAME)) {
call_ptr = method_ptr;
} else if (IS_MAGIC_FUNC(ZEND_INVOKE_FUNC_NAME)) {
invoke_ptr = method_ptr;
} else if (IS_MAGIC_FUNC(ZEND_ISSET_FUNC_NAME)) {
isset_ptr = method_ptr;
} else if (!cached_tpl) {
new_tpl->InstanceTemplate()->Set(V8JS_STR(method_ptr->common.function_name), PHP_V8JS_CALLBACK(method_ptr, new_tpl), v8::ReadOnly);
}
}
}
if (!cached_tpl) {
/* Only register getter, etc. when they're set in PHP side */
if (call_ptr || get_ptr || isset_ptr)
{
/* Set __get() handler which acts also as __call() proxy */
new_tpl->InstanceTemplate()->SetNamedPropertyHandler(
php_v8js_property_getter, /* getter */
0, /* setter */
isset_ptr ? php_v8js_property_query : 0, /* query */
0, /* deleter */
0, /* enumerator */
V8JS_BOOL(call_ptr ? true : false)
);
}
/* __invoke() handler */
if (invoke_ptr) {
new_tpl->InstanceTemplate()->SetCallAsFunctionHandler(php_v8js_property_caller, V8JS_SYM(ZEND_INVOKE_FUNC_NAME));
}
}
}
// Increase the reference count of this value because we're storing it internally for use later // Increase the reference count of this value because we're storing it internally for use later
// See https://github.com/preillyme/v8js/issues/6 // See https://github.com/preillyme/v8js/issues/6
Z_ADDREF_P(value); Z_ADDREF_P(value);
@ -538,23 +767,6 @@ static v8::Handle<v8::Value> php_v8js_hash_to_jsobj(zval *value, v8::Isolate *is
newobj = v8::Local<v8::Object>::New(isolate, persist_newobj); newobj = v8::Local<v8::Object>::New(isolate, persist_newobj);
if (ce != zend_ce_closure) {
// These unfortunately cannot be attached to the template, hence we have to put them
// on each and every object instance manually.
if (call_ptr) {
newobj->SetHiddenValue(V8JS_SYM(ZEND_CALL_FUNC_NAME), PHP_V8JS_CALLBACK(call_ptr, new_tpl));
}
if (get_ptr) {
newobj->SetHiddenValue(V8JS_SYM(ZEND_GET_FUNC_NAME), PHP_V8JS_CALLBACK(get_ptr, new_tpl));
}
if (invoke_ptr) {
newobj->SetHiddenValue(V8JS_SYM(ZEND_INVOKE_FUNC_NAME), PHP_V8JS_CALLBACK(invoke_ptr, new_tpl));
}
if (isset_ptr) {
newobj->SetHiddenValue(V8JS_SYM(ZEND_ISSET_FUNC_NAME), PHP_V8JS_CALLBACK(isset_ptr, new_tpl));
}
}
} else { } else {
v8::Local<v8::FunctionTemplate> new_tpl = v8::FunctionTemplate::New(); // @todo re-use template likewise v8::Local<v8::FunctionTemplate> new_tpl = v8::FunctionTemplate::New(); // @todo re-use template likewise
@ -565,7 +777,7 @@ static v8::Handle<v8::Value> php_v8js_hash_to_jsobj(zval *value, v8::Isolate *is
/* Object properties */ /* Object properties */
i = myht ? zend_hash_num_elements(myht) : 0; i = myht ? zend_hash_num_elements(myht) : 0;
if (i > 0) if (i > 0 && !ce)
{ {
zval **data; zval **data;
HashTable *tmp_ht; HashTable *tmp_ht;