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mirror of https://github.com/phpv8/v8js.git synced 2024-12-22 20:51:51 +00:00
phpv8/v8js_convert.cc
Stefan Siegl 920d9eeb33 Strip second timezone specification
v8 adds two timezone specifications to date strings.
However PHP fails to parse the second one, generated
on Windows systems.  Hence just strip away the redundant
specification and pass that one to PHP.
2014-11-16 22:33:32 +01:00

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38 KiB
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2013 The PHP Group |
+----------------------------------------------------------------------+
| http://www.opensource.org/licenses/mit-license.php MIT License |
+----------------------------------------------------------------------+
| Author: Jani Taskinen <jani.taskinen@iki.fi> |
| Author: Patrick Reilly <preilly@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
extern "C" {
#include "php.h"
#include "ext/date/php_date.h"
#include "ext/standard/php_string.h"
#include "zend_interfaces.h"
#include "zend_closures.h"
}
#include "php_v8js_macros.h"
#include <v8.h>
#include <stdexcept>
#include <limits>
/* Callback for PHP's zend_error_cb; catching any fatal PHP error.
* The callback is installed in the lowest (stack wise) php_v8js_call_php_func
* frame. Just store the error message and jump right back there and fall
* back into V8 context. */
static void php_v8js_error_handler(int error_num, const char *error_filename,
const uint error_lineno, const char *format,
va_list args) /* {{{ */
{
char *buffer;
int buffer_len;
TSRMLS_FETCH();
switch (error_num)
{
case E_ERROR:
case E_CORE_ERROR:
case E_USER_ERROR:
buffer_len = vspprintf(&buffer, PG(log_errors_max_len), format, args);
V8JSG(fatal_error_abort) = true;
V8JSG(error_num) = error_num;
V8JSG(error_message) = buffer;
longjmp(*V8JSG(unwind_env), 1);
break;
default:
V8JSG(old_error_handler)(error_num, error_filename, error_lineno, format, args);
break;
}
}
/* }}} */
static void php_v8js_weak_object_callback(const v8::WeakCallbackData<v8::Object, zval> &data);
/* 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) /* {{{ */
{
v8::Handle<v8::Value> return_value;
zend_fcall_info fci;
zend_fcall_info_cache fcc;
zval fname, *retval_ptr = NULL, **argv = NULL;
zend_uint argc = info.Length(), min_num_args = 0, max_num_args = 0;
char *error;
int error_len, i, flags = V8JS_FLAG_NONE;
php_v8js_ctx *ctx = (php_v8js_ctx *) isolate->GetData(0);
/* Set parameter limits */
min_num_args = method_ptr->common.required_num_args;
max_num_args = method_ptr->common.num_args;
/* Function name to call */
INIT_ZVAL(fname);
ZVAL_STRING(&fname, method_ptr->common.function_name, 0);
/* zend_fcall_info */
fci.size = sizeof(fci);
fci.function_table = &ce->function_table;
fci.function_name = &fname;
fci.symbol_table = NULL;
fci.object_ptr = value;
fci.retval_ptr_ptr = &retval_ptr;
fci.param_count = 0;
/* Check for passed vs required number of arguments */
if (argc < min_num_args)
{
error_len = spprintf(&error, 0,
"%s::%s() expects %s %d parameter%s, %d given",
ce->name,
method_ptr->common.function_name,
min_num_args == max_num_args ? "exactly" : argc < min_num_args ? "at least" : "at most",
argc < min_num_args ? min_num_args : max_num_args,
(argc < min_num_args ? min_num_args : max_num_args) == 1 ? "" : "s",
argc);
return_value = V8JS_THROW(isolate, TypeError, error, error_len);
if (ce == zend_ce_closure) {
efree(const_cast<char*>(method_ptr->internal_function.function_name));
efree(method_ptr);
}
efree(error);
info.GetReturnValue().Set(return_value);
return;
}
/* Convert parameters passed from V8 */
if (argc) {
flags = V8JS_GLOBAL_GET_FLAGS(isolate);
fci.params = (zval ***) safe_emalloc(argc, sizeof(zval **), 0);
argv = (zval **) safe_emalloc(argc, sizeof(zval *), 0);
for (i = 0; i < argc; i++) {
v8::Local<v8::Value> php_object;
if (info[i]->IsObject()) {
php_object = v8::Local<v8::Object>::Cast(info[i])->GetHiddenValue(V8JS_SYM(PHPJS_OBJECT_KEY));
}
if (!php_object.IsEmpty()) {
/* This is a PHP object, passed to JS and back. */
argv[i] = reinterpret_cast<zval *>(v8::External::Cast(*php_object)->Value());
Z_ADDREF_P(argv[i]);
} else {
MAKE_STD_ZVAL(argv[i]);
if (v8js_to_zval(info[i], argv[i], flags, isolate TSRMLS_CC) == FAILURE) {
fci.param_count++;
error_len = spprintf(&error, 0, "converting parameter #%d passed to %s() failed", i + 1, method_ptr->common.function_name);
return_value = V8JS_THROW(isolate, Error, error, error_len);
efree(error);
goto failure;
}
}
fci.params[fci.param_count++] = &argv[i];
}
} else {
fci.params = NULL;
}
fci.no_separation = 1;
info.GetReturnValue().Set(V8JS_NULL);
{
isolate->Exit();
v8::Unlocker unlocker(isolate);
/* zend_fcall_info_cache */
fcc.initialized = 1;
fcc.function_handler = method_ptr;
fcc.calling_scope = ce;
fcc.called_scope = ce;
fcc.object_ptr = value;
jmp_buf env;
jmp_buf *old_env;
int val = 0;
bool installed_handler = false;
/* If this is the first level call from V8 back to PHP, install a
* handler for fatal errors; we must fall back through V8 to keep
* it from crashing. */
if (V8JSG(unwind_env) == NULL) {
installed_handler = true;
V8JSG(old_error_handler) = zend_error_cb;
zend_error_cb = php_v8js_error_handler;
}
else {
/* inner call, stash unwind env */
old_env = V8JSG(unwind_env);
}
val = setjmp (env);
V8JSG(unwind_env) = &env;
if (!val) {
/* Call the method */
zend_call_function(&fci, &fcc TSRMLS_CC);
}
if (installed_handler) {
/* leaving out-most frame, restore original handler. */
zend_error_cb = V8JSG(old_error_handler);
V8JSG(unwind_env) = NULL;
}
else {
/* leaving inner frame, restore unwind env and jump. */
V8JSG(unwind_env) = old_env;
if (V8JSG(fatal_error_abort)) {
longjmp(*V8JSG(unwind_env), 1);
}
}
if (V8JSG(fatal_error_abort)) {
v8::V8::TerminateExecution(isolate);
return;
}
}
isolate->Enter();
failure:
/* Cleanup */
if (argc) {
for (i = 0; i < fci.param_count; i++) {
zval_ptr_dtor(&argv[i]);
}
efree(argv);
efree(fci.params);
}
if (retval_ptr != NULL) {
return_value = zval_to_v8js(retval_ptr, isolate TSRMLS_CC);
zval_ptr_dtor(&retval_ptr);
} else {
return_value = V8JS_NULL;
}
info.GetReturnValue().Set(return_value);
}
/* }}} */
/* Callback for PHP methods and functions */
static void php_v8js_php_callback(const v8::FunctionCallbackInfo<v8::Value>& info) /* {{{ */
{
v8::Isolate *isolate = info.GetIsolate();
v8::Local<v8::Object> self = info.Holder();
V8JS_TSRMLS_FETCH();
zval *value = reinterpret_cast<zval *>(v8::External::Cast(*self->GetHiddenValue(V8JS_SYM(PHPJS_OBJECT_KEY)))->Value());
zend_function *method_ptr;
zend_class_entry *ce = Z_OBJCE_P(value);
/* Set method_ptr from v8::External or fetch the closure invoker */
if (!info.Data().IsEmpty() && info.Data()->IsExternal()) {
method_ptr = static_cast<zend_function *>(v8::External::Cast(*info.Data())->Value());
} else {
method_ptr = zend_get_closure_invoke_method(value TSRMLS_CC);
}
return php_v8js_call_php_func(value, ce, method_ptr, isolate, info TSRMLS_CC);
}
/* Callback for PHP constructor calls */
static void php_v8js_construct_callback(const v8::FunctionCallbackInfo<v8::Value>& info) /* {{{ */
{
v8::Isolate *isolate = info.GetIsolate();
info.GetReturnValue().Set(V8JS_UNDEFINED);
// @todo assert constructor call
v8::Handle<v8::Object> newobj = info.This();
v8::Local<v8::External> php_object;
zval *value;
if (!info.IsConstructCall()) {
return;
}
v8::Local<v8::Array> cons_data = v8::Local<v8::Array>::Cast(info.Data());
v8::Local<v8::External> ext_tmpl = v8::Local<v8::External>::Cast(cons_data->Get(0));
v8::Local<v8::External> ext_ce = v8::Local<v8::External>::Cast(cons_data->Get(1));
php_v8js_ctx *ctx = (php_v8js_ctx *) isolate->GetData(0);
if (info[0]->IsExternal()) {
// Object created by v8js in php_v8js_hash_to_jsobj, PHP object passed as v8::External.
php_object = v8::Local<v8::External>::Cast(info[0]);
value = reinterpret_cast<zval *>(php_object->Value());
if(ctx->weak_objects.count(value)) {
// We already exported this object, hence no need to add another
// ref, v8 won't give us a second weak-object callback anyways.
newobj->SetAlignedPointerInInternalField(0, ext_tmpl->Value());
newobj->SetHiddenValue(V8JS_SYM(PHPJS_OBJECT_KEY), php_object);
return;
}
// Increase the reference count of this value because we're storing it internally for use later
// See https://github.com/preillyme/v8js/issues/6
Z_ADDREF_P(value);
} else {
// Object created from JavaScript context. Need to create PHP object first.
V8JS_TSRMLS_FETCH();
zend_class_entry *ce = static_cast<zend_class_entry *>(ext_ce->Value());
zend_function *ctor_ptr = ce->constructor;
// Check access on __construct function, if any
if (ctor_ptr != NULL && (ctor_ptr->common.fn_flags & ZEND_ACC_PUBLIC) == 0) {
info.GetReturnValue().Set(isolate->ThrowException(V8JS_SYM("Call to protected __construct() not allowed")));
return;
}
MAKE_STD_ZVAL(value);
object_init_ex(value, ce);
// Call __construct function
if (ctor_ptr != NULL) {
php_v8js_call_php_func(value, ce, ctor_ptr, isolate, info TSRMLS_CC);
}
php_object = v8::External::New(isolate, value);
}
newobj->SetAlignedPointerInInternalField(0, ext_tmpl->Value());
newobj->SetHiddenValue(V8JS_SYM(PHPJS_OBJECT_KEY), php_object);
// Since we got to decrease the reference count again, in case v8 garbage collector
// decides to dispose the JS object, we add a weak persistent handle and register
// a callback function that removes the reference.
ctx->weak_objects[value].Reset(isolate, newobj);
ctx->weak_objects[value].SetWeak(value, php_v8js_weak_object_callback);
// Just tell v8 that we're allocating some external memory
// (for the moment we just always tell 1k instead of trying to find out actual values)
isolate->AdjustAmountOfExternalAllocatedMemory(1024);
}
/* }}} */
static int _php_v8js_is_assoc_array(HashTable *myht TSRMLS_DC) /* {{{ */
{
int i;
char *key;
ulong index, idx = 0;
uint key_len;
HashPosition pos;
zend_hash_internal_pointer_reset_ex(myht, &pos);
for (;; zend_hash_move_forward_ex(myht, &pos)) {
i = zend_hash_get_current_key_ex(myht, &key, &key_len, &index, 0, &pos);
if (i == HASH_KEY_NON_EXISTANT)
break;
if (i == HASH_KEY_IS_STRING || index != idx) {
return 1;
}
idx++;
}
return 0;
}
/* }}} */
static void php_v8js_weak_object_callback(const v8::WeakCallbackData<v8::Object, zval> &data) {
v8::Isolate *isolate = data.GetIsolate();
zval *value = data.GetParameter();
zval_ptr_dtor(&value);
php_v8js_ctx *ctx = (php_v8js_ctx *) isolate->GetData(0);
ctx->weak_objects.at(value).Reset();
ctx->weak_objects.erase(value);
isolate->AdjustAmountOfExternalAllocatedMemory(-1024);
}
static void php_v8js_weak_closure_callback(const v8::WeakCallbackData<v8::Object, v8js_tmpl_t> &data) {
v8::Isolate *isolate = data.GetIsolate();
v8js_tmpl_t *persist_tpl_ = data.GetParameter();
persist_tpl_->Reset();
delete persist_tpl_;
php_v8js_ctx *ctx = (php_v8js_ctx *) isolate->GetData(0);
ctx->weak_closures.at(persist_tpl_).Reset();
ctx->weak_closures.erase(persist_tpl_);
};
/* 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(isolate, mptr, tmpl) \
v8::FunctionTemplate::New((isolate), php_v8js_php_callback, v8::External::New((isolate), mptr), v8::Signature::New((isolate), tmpl))->GetFunction()
static void php_v8js_named_property_enumerator(const v8::PropertyCallbackInfo<v8::Array> &info) /* {{{ */
{
// note: 'special' properties like 'constructor' are not enumerated.
v8::Isolate *isolate = info.GetIsolate();
v8::Local<v8::Object> self = info.Holder();
v8::Local<v8::Array> result = v8::Array::New(isolate, 0);
uint32_t result_len = 0;
V8JS_TSRMLS_FETCH();
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 *>(v8::External::Cast(*self->GetHiddenValue(V8JS_SYM(PHPJS_OBJECT_KEY)))->Value());
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 '$' so they can be
// dereferenced unambiguously (ie, don't conflict with method
// names)
char *prefixed = static_cast<char *>(emalloc(key_len + 1));
prefixed[0] = '$';
strncpy(prefixed + 1, key, key_len);
result->Set(result_len++, V8JS_STRL(prefixed, key_len));
efree(prefixed);
} 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::Isolate *isolate = info.GetIsolate();
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 = static_cast<v8::Local<v8::Value> *>(alloca(sizeof(v8::Local<v8::Value>) * argc));
v8::Local<v8::Value> result;
V8JS_TSRMLS_FETCH();
for (i=0; i<argc; i++) {
new(&argv[i]) v8::Local<v8::Value>;
argv[i] = info[i];
}
if (info.IsConstructCall()) {
php_v8js_ctx *ctx = (php_v8js_ctx *) isolate->GetData(0);
v8::String::Utf8Value str(self->GetConstructorName()->ToString());
const char *constructor_name = ToCString(str);
zend_class_entry **pce;
zend_lookup_class(constructor_name, str.length(), &pce TSRMLS_CC);
v8::Local<v8::FunctionTemplate> new_tpl;
new_tpl = v8::Local<v8::FunctionTemplate>::New
(isolate, ctx->template_cache.at((*pce)->name));
result = new_tpl->GetFunction()->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::Isolate *isolate = info.GetIsolate();
v8::Local<v8::Object> self = info.Holder();
v8::Handle<v8::Value> return_value;
char *error;
int error_len;
V8JS_TSRMLS_FETCH();
zend_class_entry *ce;
zval *object = reinterpret_cast<zval *>(v8::External::Cast(*self->GetHiddenValue(V8JS_SYM(PHPJS_OBJECT_KEY)))->Value());
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(isolate, 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(isolate, 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(isolate, 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
ZEND_HASH_KEY_NULL TSRMLS_CC);
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(isolate, TypeError, error, error_len);
efree(error);
info.GetReturnValue().Set(return_value);
return;
}
v8::Local<v8::FunctionTemplate> tmpl =
v8::Local<v8::FunctionTemplate>::New
(isolate, *reinterpret_cast<v8js_tmpl_t *>(self->GetAlignedPointerFromInternalField(0)));
// use php_v8js_php_callback to actually execute the method
v8::Local<v8::Function> cb = PHP_V8JS_CALLBACK(isolate, method_ptr, tmpl);
uint32_t i, argc = args->Length();
v8::Local<v8::Value> *argv = static_cast<v8::Local<v8::Value> *>(alloca(sizeof(v8::Local<v8::Value>) * argc));
for (i=0; i<argc; i++) {
new(&argv[i]) v8::Local<v8::Value>;
argv[i] = args->Get(i);
}
return_value = cb->Call(info.This(), (int) argc, argv);
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::Isolate *isolate = info.GetIsolate();
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;
V8JS_TSRMLS_FETCH();
zend_class_entry *scope, *ce;
zend_function *method_ptr = NULL;
zval *php_value;
zval *object = reinterpret_cast<zval *>(v8::External::Cast(*self->GetHiddenValue(V8JS_SYM(PHPJS_OBJECT_KEY)))->Value());
v8::Local<v8::FunctionTemplate> tmpl =
v8::Local<v8::FunctionTemplate>::New
(isolate, *reinterpret_cast<v8js_tmpl_t *>(self->GetAlignedPointerFromInternalField(0)));
ce = scope = 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) {
// Don't set a return value here, i.e. indicate that we don't
// have a special value. V8 "knows" the constructor anyways
// (from the template) and will use that.
} else {
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(isolate,
php_v8js_fake_call_impl, V8JS_NULL,
v8::Signature::New(isolate, tmpl))->GetFunction();
cb->SetName(property);
ret_value = cb;
} else {
ret_value = PHP_V8JS_CALLBACK(isolate, method_ptr, tmpl);
}
}
} else if (callback_type == V8JS_PROP_QUERY) {
// methods are not enumerable
ret_value = V8JS_UINT(v8::ReadOnly|v8::DontEnum|v8::DontDelete);
} 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 */
zval zname;
INIT_ZVAL(zname);
ZVAL_STRINGL(&zname, name, name_len, 0);
zend_property_info *property_info = zend_get_property_info(ce, &zname, 1 TSRMLS_CC);
if(property_info && property_info->flags & ZEND_ACC_PUBLIC) {
php_value = zend_read_property(NULL, object, V8JS_CONST name, name_len, true TSRMLS_CC);
// special case uninitialized_zval_ptr and return an empty value
// (indicating that we don't intercept this property) if the
// property doesn't exist.
if (php_value == EG(uninitialized_zval_ptr)) {
ret_value = v8::Handle<v8::Value>();
} else {
// wrap it
ret_value = zval_to_v8js(php_value, isolate TSRMLS_CC);
/* We don't own the reference to php_value... unless the
* returned refcount was 0, in which case the below code
* will free it. */
zval_add_ref(&php_value);
zval_ptr_dtor(&php_value);
}
}
else if (zend_hash_find(&ce->function_table, "__get", 6, (void**)&method_ptr) == SUCCESS
/* Allow only public methods */
&& ((method_ptr->common.fn_flags & ZEND_ACC_PUBLIC) != 0)) {
/* Okay, let's call __get. */
zend_fcall_info fci;
zval fmember;
INIT_ZVAL(fmember);
ZVAL_STRING(&fmember, "__get", 0);
fci.size = sizeof(fci);
fci.function_table = &ce->function_table;
fci.function_name = &fmember;
fci.symbol_table = NULL;
fci.retval_ptr_ptr = &php_value;
zval *zname_ptr = &zname;
zval **zname_ptr_ptr = &zname_ptr;
fci.param_count = 1;
fci.params = &zname_ptr_ptr;
fci.object_ptr = object;
fci.no_separation = 0;
zend_call_function(&fci, NULL TSRMLS_CC);
ret_value = zval_to_v8js(php_value, isolate TSRMLS_CC);
zval_ptr_dtor(&php_value);
}
} else if (callback_type == V8JS_PROP_SETTER) {
MAKE_STD_ZVAL(php_value);
if (v8js_to_zval(set_value, php_value, 0, isolate TSRMLS_CC) != SUCCESS) {
ret_value = v8::Handle<v8::Value>();
}
else {
zval zname;
INIT_ZVAL(zname);
ZVAL_STRINGL(&zname, name, name_len, 0);
zend_property_info *property_info = zend_get_property_info(ce, &zname, 1 TSRMLS_CC);
if(property_info && property_info->flags & ZEND_ACC_PUBLIC) {
zend_update_property(scope, object, V8JS_CONST name, name_len, php_value TSRMLS_CC);
ret_value = set_value;
}
else if (zend_hash_find(&ce->function_table, "__set", 6, (void**)&method_ptr) == SUCCESS
/* Allow only public methods */
&& ((method_ptr->common.fn_flags & ZEND_ACC_PUBLIC) != 0)) {
/* Okay, let's call __set. */
zend_fcall_info fci;
zval fmember;
INIT_ZVAL(fmember);
ZVAL_STRING(&fmember, "__set", 0);
zval *php_ret_value;
fci.size = sizeof(fci);
fci.function_table = &ce->function_table;
fci.function_name = &fmember;
fci.symbol_table = NULL;
fci.retval_ptr_ptr = &php_ret_value;
zval *zname_ptr = &zname;
zval **params[2];
fci.param_count = 2;
fci.params = params;
fci.params[0] = &zname_ptr;
fci.params[1] = &php_value;
fci.object_ptr = object;
fci.no_separation = 1;
zend_call_function(&fci, NULL TSRMLS_CC);
ret_value = zval_to_v8js(php_ret_value, isolate TSRMLS_CC);
zval_ptr_dtor(&php_ret_value);
}
}
// if PHP wanted to hold on to this value, update_property would
// have bumped the refcount
zval_ptr_dtor(&php_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 ZEND_HASH_KEY_NULL TSRMLS_CC)) {
ret_value = V8JS_UINT(v8::None);
} else {
ret_value = v8::Handle<v8::Value>(); // empty handle
}
} else {
zend_property_info *property_info = zend_get_property_info(ce, prop, 1 TSRMLS_CC);
if(property_info && property_info->flags & ZEND_ACC_PUBLIC) {
h->unset_property(object, prop ZEND_HASH_KEY_NULL TSRMLS_CC);
ret_value = V8JS_BOOL(true);
}
else {
ret_value = v8::Handle<v8::Value>(); // empty handle
}
}
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) /* {{{ */
{
v8::Handle<v8::Object> newobj;
int i;
char *key = NULL;
ulong index;
uint key_len;
HashTable *myht;
HashPosition pos;
zend_class_entry *ce = NULL;
if (Z_TYPE_P(value) == IS_ARRAY) {
myht = HASH_OF(value);
} else {
myht = Z_OBJPROP_P(value);
ce = Z_OBJCE_P(value);
}
/* Prevent recursion */
if (myht && myht->nApplyCount > 1) {
return V8JS_NULL;
}
/* Object methods */
if (ce == php_ce_v8_function) {
php_v8js_object *c = (php_v8js_object *) zend_object_store_get_object(value TSRMLS_CC);
if(isolate != c->ctx->isolate) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "V8Function object passed to wrong V8Js instance");
return V8JS_NULL;
}
v8::Local<v8::Value> v8obj = v8::Local<v8::Value>::New(isolate, c->v8obj);
return v8obj;
} else if (ce) {
php_v8js_ctx *ctx = (php_v8js_ctx *) isolate->GetData(0);
v8::Local<v8::FunctionTemplate> new_tpl;
v8js_tmpl_t *persist_tpl_;
try {
new_tpl = v8::Local<v8::FunctionTemplate>::New
(isolate, ctx->template_cache.at(ce->name));
}
catch (const std::out_of_range &) {
/* No cached v8::FunctionTemplate available as of yet, create one. */
new_tpl = v8::FunctionTemplate::New(isolate, 0);
new_tpl->SetClassName(V8JS_STRL(ce->name, ce->name_length));
new_tpl->InstanceTemplate()->SetInternalFieldCount(1);
if (ce == zend_ce_closure) {
/* Got a closure, mustn't cache ... */
persist_tpl_ = new v8js_tmpl_t(isolate, new_tpl);
/* We'll free persist_tpl_ via php_v8js_weak_closure_callback, below */
new_tpl->InstanceTemplate()->SetCallAsFunctionHandler(php_v8js_php_callback);
} else {
/* Add new v8::FunctionTemplate to tpl_map, as long as it is not a closure. */
persist_tpl_ = &ctx->template_cache[ce->name];
persist_tpl_->Reset(isolate, new_tpl);
/* We'll free persist_tpl_ when template_cache is destroyed */
// Finish setup of new_tpl
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(isolate, invoke_method_ptr, new_tpl));
}
}
v8::Local<v8::Array> call_handler_data = v8::Array::New(isolate, 2);
call_handler_data->Set(0, v8::External::New(isolate, persist_tpl_));
call_handler_data->Set(1, v8::External::New(isolate, ce));
new_tpl->SetCallHandler(php_v8js_construct_callback, call_handler_data);
}
// Create v8 wrapper object
v8::Handle<v8::Value> external = v8::External::New(isolate, value);
newobj = new_tpl->GetFunction()->NewInstance(1, &external);
if (ce == zend_ce_closure) {
// free uncached function template when object is freed
ctx->weak_closures[persist_tpl_].Reset(isolate, newobj);
ctx->weak_closures[persist_tpl_].SetWeak(persist_tpl_, php_v8js_weak_closure_callback);
}
} else {
// @todo re-use template likewise
v8::Local<v8::FunctionTemplate> new_tpl = v8::FunctionTemplate::New(isolate, 0);
new_tpl->SetClassName(V8JS_SYM("Array"));
newobj = new_tpl->InstanceTemplate()->NewInstance();
}
/* Object properties */
i = myht ? zend_hash_num_elements(myht) : 0;
if (i > 0 && !ce)
{
zval **data;
HashTable *tmp_ht;
zend_hash_internal_pointer_reset_ex(myht, &pos);
for (;; zend_hash_move_forward_ex(myht, &pos)) {
i = zend_hash_get_current_key_ex(myht, &key, &key_len, &index, 0, &pos);
if (i == HASH_KEY_NON_EXISTANT)
break;
if (zend_hash_get_current_data_ex(myht, (void **) &data, &pos) == SUCCESS)
{
tmp_ht = HASH_OF(*data);
if (tmp_ht) {
tmp_ht->nApplyCount++;
}
if (i == HASH_KEY_IS_STRING)
{
if (key[0] == '\0' && Z_TYPE_P(value) == IS_OBJECT) {
/* Skip protected and private members. */
if (tmp_ht) {
tmp_ht->nApplyCount--;
}
continue;
}
newobj->Set(V8JS_STRL(key, key_len - 1), zval_to_v8js(*data, isolate TSRMLS_CC));
} else {
newobj->Set(index, zval_to_v8js(*data, isolate TSRMLS_CC));
}
if (tmp_ht) {
tmp_ht->nApplyCount--;
}
}
}
}
return newobj;
}
/* }}} */
static v8::Handle<v8::Value> php_v8js_hash_to_jsarr(zval *value, v8::Isolate *isolate TSRMLS_DC) /* {{{ */
{
HashTable *myht = HASH_OF(value);
int i = myht ? zend_hash_num_elements(myht) : 0;
/* Return object if dealing with assoc array */
if (i > 0 && _php_v8js_is_assoc_array(myht TSRMLS_CC)) {
return php_v8js_hash_to_jsobj(value, isolate TSRMLS_CC);
}
v8::Local<v8::Array> newarr;
/* Prevent recursion */
if (myht && myht->nApplyCount > 1) {
return V8JS_NULL;
}
newarr = v8::Array::New(isolate, i);
if (i > 0)
{
zval **data;
ulong index = 0;
HashTable *tmp_ht;
HashPosition pos;
for (zend_hash_internal_pointer_reset_ex(myht, &pos);
SUCCESS == zend_hash_get_current_data_ex(myht, (void **) &data, &pos);
zend_hash_move_forward_ex(myht, &pos)
) {
tmp_ht = HASH_OF(*data);
if (tmp_ht) {
tmp_ht->nApplyCount++;
}
newarr->Set(index++, zval_to_v8js(*data, isolate TSRMLS_CC));
if (tmp_ht) {
tmp_ht->nApplyCount--;
}
}
}
return newarr;
}
/* }}} */
v8::Handle<v8::Value> zval_to_v8js(zval *value, v8::Isolate *isolate TSRMLS_DC) /* {{{ */
{
v8::Handle<v8::Value> jsValue;
long v;
zend_class_entry *ce;
switch (Z_TYPE_P(value))
{
case IS_ARRAY:
jsValue = php_v8js_hash_to_jsarr(value, isolate TSRMLS_CC);
break;
case IS_OBJECT:
if (V8JSG(use_date)) {
ce = php_date_get_date_ce();
if (instanceof_function(Z_OBJCE_P(value), ce TSRMLS_CC)) {
zval *dtval;
zend_call_method_with_0_params(&value, NULL, NULL, "getTimestamp", &dtval);
if (dtval) {
jsValue = V8JS_DATE(((double)Z_LVAL_P(dtval) * 1000.0));
zval_ptr_dtor(&dtval);
}
else
jsValue = V8JS_NULL;
} else
jsValue = php_v8js_hash_to_jsobj(value, isolate TSRMLS_CC);
} else
jsValue = php_v8js_hash_to_jsobj(value, isolate TSRMLS_CC);
break;
case IS_STRING:
jsValue = V8JS_STRL(Z_STRVAL_P(value), Z_STRLEN_P(value));
break;
case IS_LONG:
v = Z_LVAL_P(value);
/* On Windows there are max and min macros, which would clobber the
* method names of std::numeric_limits< > otherwise. */
#undef max
#undef min
if (v < - std::numeric_limits<int32_t>::min() || v > std::numeric_limits<int32_t>::max()) {
jsValue = V8JS_FLOAT((double)v);
} else {
jsValue = V8JS_INT(v);
}
break;
case IS_DOUBLE:
jsValue = V8JS_FLOAT(Z_DVAL_P(value));
break;
case IS_BOOL:
jsValue = V8JS_BOOL(Z_BVAL_P(value));
break;
default:
case IS_NULL:
jsValue = V8JS_NULL;
break;
}
return jsValue;
}
/* }}} */
int v8js_to_zval(v8::Handle<v8::Value> jsValue, zval *return_value, int flags, v8::Isolate *isolate TSRMLS_DC) /* {{{ */
{
if (jsValue->IsString())
{
v8::String::Utf8Value str(jsValue);
const char *cstr = ToCString(str);
RETVAL_STRINGL(cstr, jsValue->ToString()->Utf8Length(), 1);
// RETVAL_STRING(cstr, 1);
}
else if (jsValue->IsBoolean())
{
RETVAL_BOOL(jsValue->Uint32Value());
}
else if (jsValue->IsInt32() || jsValue->IsUint32())
{
RETVAL_LONG((long) jsValue->IntegerValue());
}
else if (jsValue->IsNumber())
{
RETVAL_DOUBLE(jsValue->NumberValue());
}
else if (jsValue->IsDate()) /* Return as a PHP DateTime object */
{
v8::String::Utf8Value str(jsValue);
const char *cstr = ToCString(str);
/* cstr has two timezone specifications:
*
* example from Linux:
* Mon Sep 08 1975 09:00:00 GMT+0000 (UTC)
*
* example from Windows:
* Mon Sep 08 1975 11:00:00 GMT+0200 (W. Europe Daylight Time)
*
* ... problem is, that PHP can't parse the second timezone
* specification as returned by v8 running on Windows. And as a
* matter of that fails due to inconsistent second timezone spec
*/
char *date_str = estrdup(cstr);
char *paren_ptr = strchr(date_str, '(');
if (paren_ptr != NULL) {
*paren_ptr = 0;
}
zend_class_entry *ce = php_date_get_date_ce();
#if PHP_VERSION_ID < 50304
zval *param;
MAKE_STD_ZVAL(param);
ZVAL_STRING(param, date_str, 0);
object_init_ex(return_value, ce TSRMLS_CC);
zend_call_method_with_1_params(&return_value, ce, &ce->constructor, "__construct", NULL, param);
zval_ptr_dtor(&param);
if (EG(exception)) {
return FAILURE;
}
#else
php_date_instantiate(ce, return_value TSRMLS_CC);
if (!php_date_initialize((php_date_obj *) zend_object_store_get_object(return_value TSRMLS_CC), date_str, strlen(date_str), NULL, NULL, 0 TSRMLS_CC)) {
efree(date_str);
return FAILURE;
}
efree(date_str);
#endif
}
else if (jsValue->IsObject())
{
v8::Handle<v8::Object> self = v8::Handle<v8::Object>::Cast(jsValue);
// if this is a wrapped PHP object, then just unwrap it.
v8::Local<v8::Value> php_object = self->GetHiddenValue(V8JS_SYM(PHPJS_OBJECT_KEY));
if (!php_object.IsEmpty()) {
zval *object = reinterpret_cast<zval *>(v8::External::Cast(*php_object)->Value());
RETVAL_ZVAL(object, 1, 0);
return SUCCESS;
}
if ((flags & V8JS_FLAG_FORCE_ARRAY) || jsValue->IsArray()) {
array_init(return_value);
return php_v8js_v8_get_properties_hash(jsValue, Z_ARRVAL_P(return_value), flags, isolate TSRMLS_CC);
} else {
php_v8js_create_v8(return_value, jsValue, flags, isolate TSRMLS_CC);
return SUCCESS;
}
}
else /* types External, RegExp, Undefined and Null are considered NULL */
{
RETVAL_NULL();
}
return SUCCESS;
}
/* }}} */
/*
* 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
*/