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v8js_class.cc
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v8js_class.cc
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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2017 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> |
| Author: Stefan Siegl <stesie@php.net> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <functional>
#include <algorithm>
#include "php_v8js_macros.h"
#include "v8js_v8.h"
#include "v8js_exceptions.h"
#include "v8js_v8object_class.h"
#include "v8js_object_export.h"
#include "v8js_timer.h"
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 "ext/spl/spl_exceptions.h"
#include "zend_exceptions.h"
#include "zend_attributes.h"
}
#define PHP_V8JS_SCRIPT_RES_NAME "V8Js script"
/* {{{ Class Entries */
static zend_class_entry *php_ce_v8js;
/* }}} */
/* {{{ Object Handlers */
static zend_object_handlers v8js_object_handlers;
/* }}} */
/* Forward declare v8js_methods, actually "static" but not possible in C++ */
extern const zend_function_entry v8js_methods[];
typedef struct _v8js_script {
char *name;
v8js_ctx *ctx;
v8::Persistent<v8::Script, v8::CopyablePersistentTraits<v8::Script>> *script;
} v8js_script;
static void v8js_script_free(v8js_script *res);
int le_v8js_script;
#ifdef USE_INTERNAL_ALLOCATOR
class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
public:
virtual void* Allocate(size_t length) {
void* data = AllocateUninitialized(length);
return data == NULL ? data : memset(data, 0, length);
}
virtual void* AllocateUninitialized(size_t length) { return malloc(length); }
virtual void Free(void* data, size_t) { free(data); }
};
#endif /** USE_INTERNAL_ALLOCATOR */
static void v8js_free_storage(zend_object *object) /* {{{ */
{
v8js_ctx *c = v8js_ctx_fetch_object(object);
zend_object_std_dtor(&c->std);
zval_ptr_dtor(&c->module_normaliser);
zval_ptr_dtor(&c->module_loader);
zval_ptr_dtor(&c->exception_filter);
/* Delete PHP global object from JavaScript */
if (!c->context.IsEmpty()) {
v8::Locker locker(c->isolate);
v8::Isolate::Scope isolate_scope(c->isolate);
v8::HandleScope handle_scope(c->isolate);
v8::Local<v8::Context> v8_context = v8::Local<v8::Context>::New(c->isolate, c->context);
v8::Context::Scope context_scope(v8_context);
v8::Local<v8::String> object_name_js = v8::Local<v8::String>::New(c->isolate, c->object_name);
V8JS_GLOBAL(c->isolate)->Delete(v8_context, object_name_js);
}
c->object_name.Reset();
c->object_name.~Persistent();
c->global_template.Reset();
c->global_template.~Persistent();
c->array_tmpl.Reset();
c->array_tmpl.~Persistent();
/* Clear persistent call_impl & method_tmpls templates */
for (std::map<v8js_function_tmpl_t *, v8js_function_tmpl_t>::iterator it = c->call_impls.begin();
it != c->call_impls.end(); ++it) {
// No need to free it->first, as it is stored in c->template_cache and freed below
it->second.Reset();
}
c->call_impls.~map();
for (std::map<std::pair<zend_class_entry *, zend_function *>, v8js_function_tmpl_t>::iterator it = c->method_tmpls.begin();
it != c->method_tmpls.end(); ++it) {
it->second.Reset();
}
c->method_tmpls.~map();
/* Clear persistent handles in template cache */
for (std::map<const zend_string *,v8js_function_tmpl_t>::iterator it = c->template_cache.begin();
it != c->template_cache.end(); ++it) {
it->second.Reset();
}
c->template_cache.~map();
/* Clear contexts */
for (std::vector<v8js_accessor_ctx*>::iterator it = c->accessor_list.begin();
it != c->accessor_list.end(); ++it) {
v8js_accessor_ctx_dtor(*it);
}
c->accessor_list.~vector();
/* Clear global object, dispose context */
if (!c->context.IsEmpty()) {
c->context.Reset();
}
c->context.~Persistent();
/* Dispose yet undisposed weak refs */
for (std::map<zend_object *, v8js_persistent_obj_t>::iterator it = c->weak_objects.begin();
it != c->weak_objects.end(); ++it) {
zend_object *object = it->first;
zval value;
ZVAL_OBJ(&value, object);
zval_ptr_dtor(&value);
c->isolate->AdjustAmountOfExternalAllocatedMemory(-c->average_object_size);
it->second.Reset();
}
c->weak_objects.~map();
for (std::map<v8js_function_tmpl_t *, v8js_persistent_obj_t>::iterator it = c->weak_closures.begin();
it != c->weak_closures.end(); ++it) {
v8js_function_tmpl_t *persist_tpl_ = it->first;
persist_tpl_->Reset();
delete persist_tpl_;
it->second.Reset();
}
c->weak_closures.~map();
for (std::list<v8js_v8object *>::iterator it = c->v8js_v8objects.begin();
it != c->v8js_v8objects.end(); it ++) {
(*it)->v8obj.Reset();
(*it)->ctx = NULL;
}
c->v8js_v8objects.~list();
for (std::vector<v8js_script *>::iterator it = c->script_objects.begin();
it != c->script_objects.end(); it ++) {
(*it)->ctx = NULL;
(*it)->script->Reset();
}
c->script_objects.~vector();
/* Clear persistent handles in module cache */
for (std::map<char *, v8js_persistent_value_t>::iterator it = c->modules_loaded.begin();
it != c->modules_loaded.end(); ++it) {
efree(it->first);
it->second.Reset();
}
c->modules_loaded.~map();
if(c->isolate) {
/* c->isolate is initialized by V8Js::__construct, but __wakeup calls
* are not fully constructed and hence this would cause a NPE. */
c->isolate->Dispose();
}
if(c->tz != NULL) {
free(c->tz);
}
c->modules_stack.~vector();
zval_ptr_dtor(&c->zval_snapshot_blob);
#ifndef USE_INTERNAL_ALLOCATOR
delete c->create_params.array_buffer_allocator;
#endif
}
/* }}} */
static zend_object* v8js_new(zend_class_entry *ce) /* {{{ */
{
v8js_ctx *c;
c = (v8js_ctx *) ecalloc(1, sizeof(*c) + zend_object_properties_size(ce));
zend_object_std_init(&c->std, ce);
object_properties_init(&c->std, ce);
c->std.handlers = &v8js_object_handlers;
new(&c->object_name) v8::Persistent<v8::String>();
new(&c->context) v8::Persistent<v8::Context>();
new(&c->global_template) v8::Persistent<v8::FunctionTemplate>();
new(&c->array_tmpl) v8::Persistent<v8::FunctionTemplate>();
new(&c->modules_stack) std::vector<char*>();
new(&c->modules_loaded) std::map<char *, v8js_persistent_value_t, cmp_str>;
new(&c->template_cache) std::map<const zend_string *,v8js_function_tmpl_t>();
new(&c->accessor_list) std::vector<v8js_accessor_ctx *>();
new(&c->weak_closures) std::map<v8js_function_tmpl_t *, v8js_persistent_obj_t>();
new(&c->weak_objects) std::map<zend_object *, v8js_persistent_obj_t>();
new(&c->call_impls) std::map<v8js_function_tmpl_t *, v8js_function_tmpl_t>();
new(&c->method_tmpls) std::map<std::pair<zend_class_entry *, zend_function *>, v8js_function_tmpl_t>();
new(&c->v8js_v8objects) std::list<v8js_v8object *>();
new(&c->script_objects) std::vector<v8js_script *>();
// @fixme following is const, run on startup
v8js_object_handlers.offset = XtOffsetOf(struct v8js_ctx, std);
v8js_object_handlers.free_obj = v8js_free_storage;
c->average_object_size = 1024;
return &c->std;
}
/* }}} */
static void v8js_fatal_error_handler(const char *location, const char *message) /* {{{ */
{
if (location) {
zend_error(E_WARNING, "Fatal V8 error in %s: %s", location, message);
} else {
zend_error(E_WARNING, "Fatal V8 error: %s", message);
}
}
/* }}} */
#define IS_MAGIC_FUNC(mname) \
((ZSTR_LEN(key) == sizeof(mname) - 1) && \
!strncasecmp(ZSTR_VAL(key), mname, ZSTR_LEN(key)))
/* {{{ proto void V8Js::__construct([string object_name [, array variables [, string snapshot_blob]]])
__construct for V8Js */
static PHP_METHOD(V8Js, __construct)
{
zend_string *object_name = NULL;
zval *vars_arr = NULL;
zval *snapshot_blob = NULL;
v8js_ctx *c = Z_V8JS_CTX_OBJ_P(getThis())
if (!c->context.IsEmpty()) {
/* called __construct() twice, bail out */
return;
}
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|S!az", &object_name, &vars_arr, &snapshot_blob) == FAILURE) {
return;
}
/* Initialize V8 */
v8js_v8_init();
/* Throw PHP exception if uncaught exceptions exist */
c->in_execution = 0;
new (&c->create_params) v8::Isolate::CreateParams();
#ifdef USE_INTERNAL_ALLOCATOR
static ArrayBufferAllocator array_buffer_allocator;
c->create_params.array_buffer_allocator = &array_buffer_allocator;
#else
c->create_params.array_buffer_allocator = v8::ArrayBuffer::Allocator::NewDefaultAllocator();
#endif
new (&c->snapshot_blob) v8::StartupData();
if (snapshot_blob) {
if (Z_TYPE_P(snapshot_blob) == IS_STRING) {
ZVAL_COPY(&c->zval_snapshot_blob, snapshot_blob);
if (Z_STRLEN_P(snapshot_blob) > std::numeric_limits<int>::max()) {
zend_throw_exception(php_ce_v8js_exception,
"Snapshot size exceeds maximum supported length", 0);
return;
}
c->snapshot_blob.data = Z_STRVAL_P(snapshot_blob);
c->snapshot_blob.raw_size = static_cast<int>(Z_STRLEN_P(snapshot_blob));
c->create_params.snapshot_blob = &c->snapshot_blob;
} else {
php_error_docref(NULL, E_WARNING, "Argument snapshot_blob expected to be of string type");
}
}
c->isolate = v8::Isolate::New(c->create_params);
c->isolate->SetData(0, c);
c->time_limit = 0;
c->time_limit_hit = false;
c->memory_limit = 0;
c->memory_limit_hit = false;
ZVAL_NULL(&c->module_normaliser);
ZVAL_NULL(&c->module_loader);
ZVAL_NULL(&c->exception_filter);
// Isolate execution
v8::Isolate *isolate = c->isolate;
v8::Locker locker(isolate);
v8::Isolate::Scope isolate_scope(isolate);
/* Handle scope */
v8::HandleScope handle_scope(isolate);
/* Redirect fatal errors to PHP error handler */
isolate->SetFatalErrorHandler(v8js_fatal_error_handler);
/* Create global template for global object */
// Now we are using multiple isolates this needs to be created for every context
v8::Local<v8::ObjectTemplate> global_template = v8::ObjectTemplate::New(c->isolate);
c->global_template.Reset(isolate, global_template);
/* Register builtin methods */
v8js_register_methods(global_template, c);
/* Create context */
v8::Local<v8::Context> context = v8::Context::New(isolate, nullptr, global_template);
if (context.IsEmpty()) {
zend_throw_exception(php_ce_v8js_exception, "Failed to create V8 context.", 0);
return;
}
context->SetAlignedPointerInEmbedderData(1, c);
context->Global()->Set(context, V8JS_SYM("global"), context->Global());
c->context.Reset(isolate, context);
/* Enter context */
v8::Context::Scope context_scope(context);
/* Create the PHP container object's function template */
v8::Local<v8::FunctionTemplate> php_obj_t = v8::FunctionTemplate::New(isolate, 0);
/* Set class name for PHP object */
zend_class_entry *ce = Z_OBJCE_P(getThis());
if (ZSTR_LEN(ce->name) > std::numeric_limits<int>::max()) {
zend_throw_exception(php_ce_v8js_exception,
"PHP object class name exceeds maximum supported length", 0);
return;
}
php_obj_t->SetClassName(V8JS_SYML(ZSTR_VAL(ce->name), static_cast<int>(ZSTR_LEN(ce->name))));
/* Register Get accessor for passed variables */
if (vars_arr && zend_hash_num_elements(Z_ARRVAL_P(vars_arr)) > 0) {
v8js_register_accessors(&c->accessor_list, php_obj_t, vars_arr, isolate);
}
/* Set name for the PHP JS object */
v8::Local<v8::String> object_name_js;
if (object_name && ZSTR_LEN(object_name)) {
if (ZSTR_LEN(object_name) > std::numeric_limits<int>::max()) {
zend_throw_exception(php_ce_v8js_exception,
"PHP JS object class name exceeds maximum supported length", 0);
return;
}
object_name_js = V8JS_ZSYM(object_name);
}
else {
object_name_js = V8JS_SYM("PHP");
}
c->object_name.Reset(isolate, object_name_js);
/* Add the PHP object into global object */
php_obj_t->InstanceTemplate()->SetInternalFieldCount(2);
v8::Local<v8::Object> php_obj = php_obj_t->InstanceTemplate()->NewInstance(context).ToLocalChecked();
V8JS_GLOBAL(isolate)->DefineOwnProperty(context, object_name_js, php_obj, v8::ReadOnly);
/* Export public property values */
HashTable *properties = zend_std_get_properties(Z_OBJ_P(getThis()));
zval *value;
zend_string *member;
ZEND_HASH_FOREACH_STR_KEY(properties, member) {
zend_property_info *property_info = zend_get_property_info(c->std.ce, member, 1);
if(property_info &&
property_info != ZEND_WRONG_PROPERTY_INFO &&
(property_info->flags & ZEND_ACC_PUBLIC)) {
if (ZSTR_LEN(member) > std::numeric_limits<int>::max()) {
zend_throw_exception(php_ce_v8js_exception,
"Property name exceeds maximum supported length", 0);
return;
}
v8::Local<v8::Name> key = V8JS_ZSYM(member);
/* Write value to PHP JS object */
value = OBJ_PROP(Z_OBJ_P(getThis()), property_info->offset);
php_obj->DefineOwnProperty(context, key, zval_to_v8js(value, isolate), v8::ReadOnly);
}
} ZEND_HASH_FOREACH_END();
/* Add pointer to zend object */
php_obj->SetAlignedPointerInInternalField(1, Z_OBJ_P(getThis()));
/* Export public methods */
void *ptr;
zend_string *key;
ZEND_HASH_FOREACH_STR_KEY_PTR(&c->std.ce->function_table, key, ptr) {
zend_function *method_ptr = reinterpret_cast<zend_function *>(ptr);
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)) != 0) {
/* no __construct, __destruct(), or __clone() functions */
continue;
}
/* hide (do not export) 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_TOSTRING_FUNC_NAME) ||
IS_MAGIC_FUNC(ZEND_ISSET_FUNC_NAME)) {
continue;
}
const zend_function_entry *fe;
for (fe = v8js_methods; fe->fname; fe ++) {
if (strcmp(fe->fname, ZSTR_VAL(method_ptr->common.function_name)) == 0) {
break;
}
}
if(fe->fname) {
/* Method belongs to \V8Js class itself, never export to V8, even if
* it is overriden in a derived class. */
continue;
}
if (ZSTR_LEN(method_ptr->common.function_name) > std::numeric_limits<int>::max()) {
zend_throw_exception(php_ce_v8js_exception,
"Method name exceeds maximum supported length", 0);
return;
}
v8::Local<v8::String> method_name = V8JS_ZSYM(method_ptr->common.function_name);
v8::Local<v8::FunctionTemplate> ft;
ft = v8::FunctionTemplate::New(isolate, v8js_php_callback,
v8::External::New((isolate), method_ptr));
// @fixme add/check Signature v8::Signature::New((isolate), tmpl));
v8js_function_tmpl_t *persistent_ft = &c->method_tmpls[std::make_pair(ce, method_ptr)];
persistent_ft->Reset(isolate, ft);
php_obj->CreateDataProperty(context, method_name, ft->GetFunction(context).ToLocalChecked());
} ZEND_HASH_FOREACH_END();
}
/* }}} */
/* {{{ proto V8JS::__sleep()
*/
PHP_METHOD(V8Js, __sleep)
{
zend_throw_exception(php_ce_v8js_exception,
"You cannot serialize or unserialize V8Js instances", 0);
RETURN_FALSE;
}
/* }}} */
/* {{{ proto V8JS::__wakeup()
*/
PHP_METHOD(V8Js, __wakeup)
{
zend_throw_exception(php_ce_v8js_exception,
"You cannot serialize or unserialize V8Js instances", 0);
RETURN_FALSE;
}
/* }}} */
static void v8js_compile_script(zval *this_ptr, const zend_string *str, const zend_string *identifier, v8js_script **ret)
{
v8js_script *res = NULL;
V8JS_BEGIN_CTX(c, this_ptr)
/* Catch JS exceptions */
v8::TryCatch try_catch(isolate);
/* Set script identifier */
if (identifier && ZSTR_LEN(identifier) > std::numeric_limits<int>::max()) {
zend_throw_exception(php_ce_v8js_exception,
"Script identifier exceeds maximum supported length", 0);
return;
}
v8::Local<v8::String> sname = identifier
? V8JS_ZSTR(identifier)
: V8JS_SYM("V8Js::compileString()");
v8::ScriptOrigin origin(isolate, sname);
if (ZSTR_LEN(str) > std::numeric_limits<int>::max()) {
zend_throw_exception(php_ce_v8js_exception,
"Script source exceeds maximum supported length", 0);
return;
}
v8::Local<v8::String> source = V8JS_ZSTR(str);
v8::MaybeLocal<v8::Script> script = v8::Script::Compile(v8::Local<v8::Context>::New(isolate, c->context), source, &origin);
/* Compile errors? */
if (script.IsEmpty()) {
v8js_throw_script_exception(c->isolate, &try_catch);
return;
}
res = (v8js_script *)emalloc(sizeof(v8js_script));
res->script = new v8::Persistent<v8::Script, v8::CopyablePersistentTraits<v8::Script>>(c->isolate, script.ToLocalChecked());
v8::String::Utf8Value _sname(isolate, sname);
res->name = estrndup(ToCString(_sname), _sname.length());
res->ctx = c;
*ret = res;
return;
}
static void v8js_execute_script(zval *this_ptr, v8js_script *res, long flags, long time_limit, size_t memory_limit, zval **return_value)
{
v8js_ctx *c = Z_V8JS_CTX_OBJ_P(this_ptr);
if (res->ctx != c) {
zend_error(E_WARNING, "Script resource from wrong V8Js object passed");
ZVAL_BOOL(*return_value, 0);
return;
}
if (!c->in_execution && time_limit == 0) {
time_limit = c->time_limit;
}
if (!c->in_execution && memory_limit == 0) {
memory_limit = c->memory_limit;
}
/* std::function relies on its dtor to be executed, otherwise it leaks
* some memory on bailout. */
{
std::function< v8::MaybeLocal<v8::Value>(v8::Isolate *) > v8_call = [c, res](v8::Isolate *isolate) {
v8::Local<v8::Script> script = v8::Local<v8::Script>::New(isolate, *res->script);
return script->Run(v8::Local<v8::Context>::New(isolate, c->context));
};
v8js_v8_call(c, return_value, flags, time_limit, memory_limit, v8_call);
}
if(V8JSG(fatal_error_abort)) {
/* Check for fatal error marker possibly set by v8js_error_handler; just
* rethrow the error since we're now out of V8. */
zend_bailout();
}
}
/* {{{ proto mixed V8Js::executeString(string script [, string identifier [, int flags]])
*/
static PHP_METHOD(V8Js, executeString)
{
zend_string *str = NULL, *identifier = NULL;
long flags = V8JS_FLAG_NONE, time_limit = 0, memory_limit = 0;
v8js_script *res = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "S|S!lll", &str, &identifier, &flags, &time_limit, &memory_limit) == FAILURE) {
return;
}
if (memory_limit < 0) {
zend_throw_exception(php_ce_v8js_exception,
"memory_limit must not be negative", 0);
return;
}
v8js_compile_script(getThis(), str, identifier, &res);
if (!res) {
RETURN_FALSE;
}
zend_try {
v8js_execute_script(getThis(), res, flags, time_limit, static_cast<size_t>(memory_limit), &return_value);
v8js_script_free(res);
}
zend_catch {
v8js_script_free(res);
zend_bailout();
}
zend_end_try()
efree(res);
}
/* }}} */
/* {{{ proto mixed V8Js::compileString(string script [, string identifier])
*/
static PHP_METHOD(V8Js, compileString)
{
zend_string *str = NULL, *identifier = NULL;
v8js_script *res = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "S|S", &str, &identifier) == FAILURE) {
return;
}
v8js_compile_script(getThis(), str, identifier, &res);
if (res) {
RETVAL_RES(zend_register_resource(res, le_v8js_script));
v8js_ctx *ctx;
ctx = Z_V8JS_CTX_OBJ_P(getThis());
ctx->script_objects.push_back(res);
}
}
/* }}} */
/* {{{ proto mixed V8Js::executeScript(resource script [, int flags]])
*/
static PHP_METHOD(V8Js, executeScript)
{
long flags = V8JS_FLAG_NONE, time_limit = 0, memory_limit = 0;
zval *zscript;
v8js_script *res;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "r|lll", &zscript, &flags, &time_limit, &memory_limit) == FAILURE) {
return;
}
if (memory_limit < 0) {
zend_throw_exception(php_ce_v8js_exception,
"memory_limit must not be negative", 0);
return;
}
if((res = (v8js_script *)zend_fetch_resource(Z_RES_P(zscript), PHP_V8JS_SCRIPT_RES_NAME, le_v8js_script)) == NULL) {
RETURN_FALSE;
}
v8js_execute_script(getThis(), res, flags, time_limit, static_cast<size_t>(memory_limit), &return_value);
}
/* }}} */
/* {{{ proto void V8Js::setModuleNormaliser(string base, string module_id)
*/
static PHP_METHOD(V8Js, setModuleNormaliser)
{
v8js_ctx *c;
zval *callable;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &callable) == FAILURE) {
return;
}
c = Z_V8JS_CTX_OBJ_P(getThis());
ZVAL_COPY(&c->module_normaliser, callable);
}
/* }}} */
/* {{{ proto void V8Js::setModuleLoader(string module)
*/
static PHP_METHOD(V8Js, setModuleLoader)
{
v8js_ctx *c;
zval *callable;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &callable) == FAILURE) {
return;
}
c = Z_V8JS_CTX_OBJ_P(getThis());
ZVAL_COPY(&c->module_loader, callable);
}
/* }}} */
/* {{{ proto void V8Js::setExceptionFilter(callable factory)
*/
static PHP_METHOD(V8Js, setExceptionFilter)
{
zval *callable;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &callable) == FAILURE) {
return;
}
v8js_ctx *c = Z_V8JS_CTX_OBJ_P(getThis());
ZVAL_COPY(&c->exception_filter, callable);
}
/* }}} */
/* {{{ proto void V8Js::setTimeLimit(int time_limit)
*/
static PHP_METHOD(V8Js, setTimeLimit)
{
v8js_ctx *c;
long time_limit = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &time_limit) == FAILURE) {
return;
}
c = Z_V8JS_CTX_OBJ_P(getThis());
c->time_limit = time_limit;
V8JSG(timer_mutex).lock();
for (std::deque< v8js_timer_ctx* >::iterator it = V8JSG(timer_stack).begin();
it != V8JSG(timer_stack).end(); it ++) {
if((*it)->ctx == c && !(*it)->killed) {
(*it)->time_limit = time_limit;
// Calculate the time point when the time limit is exceeded
std::chrono::milliseconds duration(time_limit);
std::chrono::time_point<std::chrono::high_resolution_clock> from = std::chrono::high_resolution_clock::now();
(*it)->time_point = from + duration;
}
}
V8JSG(timer_mutex).unlock();
if (c->in_execution && time_limit && !V8JSG(timer_thread)) {
/* If timer thread is not started already and we now impose a time limit
* finally install the timer. */
V8JSG(timer_thread) = new std::thread(v8js_timer_thread, ZEND_MODULE_GLOBALS_BULK(v8js));
}
}
/* }}} */
/* {{{ proto void V8Js::setMemoryLimit(int memory_limit)
*/
static PHP_METHOD(V8Js, setMemoryLimit)
{
v8js_ctx *c;
long memory_limit = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &memory_limit) == FAILURE) {
return;
}
if (memory_limit < 0) {
zend_throw_exception(php_ce_v8js_exception,
"memory_limit must not be negative", 0);
return;
}
c = Z_V8JS_CTX_OBJ_P(getThis());
c->memory_limit = static_cast<size_t>(memory_limit);
V8JSG(timer_mutex).lock();
for (std::deque< v8js_timer_ctx* >::iterator it = V8JSG(timer_stack).begin();
it != V8JSG(timer_stack).end(); it ++) {
if((*it)->ctx == c && !(*it)->killed) {
(*it)->memory_limit = static_cast<size_t>(memory_limit);
}
}
V8JSG(timer_mutex).unlock();
if (c->in_execution && memory_limit && !V8JSG(timer_thread)) {
/* If timer thread is not started already and we now impose a memory limit
* finally install the timer. */
V8JSG(timer_thread) = new std::thread(v8js_timer_thread, ZEND_MODULE_GLOBALS_BULK(v8js));
}
}
/* }}} */
/* {{{ proto void V8Js::setAverageObjectSize(average_object_size)
*/
static PHP_METHOD(V8Js, setAverageObjectSize)
{
v8js_ctx *c;
long average_object_size = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &average_object_size) == FAILURE) {
return;
}
c = Z_V8JS_CTX_OBJ_P(getThis());
c->average_object_size = average_object_size;
}
/* }}} */
static void v8js_persistent_zval_ctor(zval *p) /* {{{ */
{
assert(Z_TYPE_P(p) == IS_STRING);
Z_STR_P(p) = zend_string_dup(Z_STR_P(p), 1);
}
/* }}} */
static void v8js_persistent_zval_dtor(zval *p) /* {{{ */
{
assert(Z_TYPE_P(p) == IS_STRING);
if (!ZSTR_IS_INTERNED(Z_STR_P(p))) {
free(Z_STR_P(p));
}
}
/* }}} */
static void v8js_script_free(v8js_script *res)
{
efree(res->name);
delete res->script; // does Reset()
}
static void v8js_script_dtor(zend_resource *rsrc) /* {{{ */
{
v8js_script *res = (v8js_script *)rsrc->ptr;
if (res) {
if(res->ctx) {
std::vector<v8js_script *>::iterator it = std::find(res->ctx->script_objects.begin(), res->ctx->script_objects.end(), res);
res->ctx->script_objects.erase(it);
}
v8js_script_free(res);
efree(res);
}
}
/* }}} */
/* ## Static methods ## */
static v8::StartupData createSnapshotDataBlob(v8::SnapshotCreator *snapshot_creator, zend_string *str) /* {{{ */
{
v8::Isolate *isolate = snapshot_creator->GetIsolate();
{
v8::HandleScope scope(isolate);
v8::Local<v8::Context> context = v8::Context::New(isolate);
v8::Context::Scope context_scope(context);
v8::TryCatch try_catch(isolate);
v8::Local<v8::String> source = V8JS_ZSTR(str);
v8::MaybeLocal<v8::Script> script = v8::Script::Compile(context, source);
if (script.IsEmpty() || script.ToLocalChecked()->Run(context).IsEmpty())
{
return {nullptr, 0};
}
snapshot_creator->SetDefaultContext(context);
}
return snapshot_creator->CreateBlob(v8::SnapshotCreator::FunctionCodeHandling::kClear);
} /* }}} */
/* {{{ proto string|bool V8Js::createSnapshot(string embed_source)
*/
static PHP_METHOD(V8Js, createSnapshot)
{
zend_string *script;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "S", &script) == FAILURE) {
return;
}
if (!ZSTR_LEN(script)) {
php_error_docref(NULL, E_WARNING, "Script cannot be empty");
RETURN_FALSE;
}
/* Initialize V8, if not already done. */
v8js_v8_init();
v8::Isolate *isolate = v8::Isolate::Allocate();
v8::SnapshotCreator snapshot_creator(isolate);
v8::StartupData snapshot_blob = createSnapshotDataBlob(&snapshot_creator, script);
if (!snapshot_blob.data) {
php_error_docref(NULL, E_WARNING, "Failed to create V8 heap snapshot. Check $embed_source for errors.");
RETURN_FALSE;
}
RETVAL_STRINGL(snapshot_blob.data, snapshot_blob.raw_size);
delete[] snapshot_blob.data;
}
/* }}} */
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_v8js_construct, 0, 0, 0)
ZEND_ARG_INFO(0, object_name)
ZEND_ARG_INFO(0, variables)
ZEND_ARG_INFO(0, snapshot_blob)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_v8js_sleep, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_v8js_wakeup, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_v8js_executestring, 0, 0, 1)
ZEND_ARG_INFO(0, script)
ZEND_ARG_INFO(0, identifier)
ZEND_ARG_INFO(0, flags)
ZEND_ARG_INFO(0, time_limit)
ZEND_ARG_INFO(0, memory_limit)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_v8js_compilestring, 0, 0, 1)
ZEND_ARG_INFO(0, script)
ZEND_ARG_INFO(0, identifier)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_v8js_executescript, 0, 0, 1)
ZEND_ARG_INFO(0, script)
ZEND_ARG_INFO(0, flags)
ZEND_ARG_INFO(0, time_limit)
ZEND_ARG_INFO(0, memory_limit)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_v8js_checkstring, 0, 0, 1)
ZEND_ARG_INFO(0, script)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_v8js_setmodulenormaliser, 0, 0, 2)
ZEND_ARG_INFO(0, base)
ZEND_ARG_INFO(0, module_id)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_v8js_setmoduleloader, 0, 0, 1)
ZEND_ARG_INFO(0, callable)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_v8js_setexceptionfilter, 0, 0, 1)
ZEND_ARG_INFO(0, callable)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_v8js_setaverageobjectsize, 0, 0, 1)
ZEND_ARG_INFO(0, average_object_size)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_v8js_createsnapshot, 0, 0, 1)
ZEND_ARG_INFO(0, script)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_v8js_settimelimit, 0, 0, 1)
ZEND_ARG_INFO(0, time_limit)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_v8js_setmemorylimit, 0, 0, 1)
ZEND_ARG_INFO(0, memory_limit)
ZEND_END_ARG_INFO()
const zend_function_entry v8js_methods[] = { /* {{{ */
PHP_ME(V8Js, __construct, arginfo_v8js_construct, ZEND_ACC_PUBLIC|ZEND_ACC_CTOR)
PHP_ME(V8Js, __sleep, arginfo_v8js_sleep, ZEND_ACC_PUBLIC|ZEND_ACC_FINAL)
PHP_ME(V8Js, __wakeup, arginfo_v8js_wakeup, ZEND_ACC_PUBLIC|ZEND_ACC_FINAL)
PHP_ME(V8Js, executeString, arginfo_v8js_executestring, ZEND_ACC_PUBLIC)
PHP_ME(V8Js, compileString, arginfo_v8js_compilestring, ZEND_ACC_PUBLIC)
PHP_ME(V8Js, executeScript, arginfo_v8js_executescript, ZEND_ACC_PUBLIC)
PHP_ME(V8Js, setModuleNormaliser, arginfo_v8js_setmodulenormaliser, ZEND_ACC_PUBLIC)
PHP_ME(V8Js, setModuleLoader, arginfo_v8js_setmoduleloader, ZEND_ACC_PUBLIC)
PHP_ME(V8Js, setExceptionFilter, arginfo_v8js_setexceptionfilter, ZEND_ACC_PUBLIC)
PHP_ME(V8Js, setTimeLimit, arginfo_v8js_settimelimit, ZEND_ACC_PUBLIC)
PHP_ME(V8Js, setMemoryLimit, arginfo_v8js_setmemorylimit, ZEND_ACC_PUBLIC)
PHP_ME(V8Js, setAverageObjectSize, arginfo_v8js_setaverageobjectsize, ZEND_ACC_PUBLIC)
PHP_ME(V8Js, createSnapshot, arginfo_v8js_createsnapshot, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
{NULL, NULL, NULL}
};
/* }}} */
/* V8Js object handlers */
static zval* v8js_write_property(zend_object *object, zend_string *member, zval *value, void **cache_slot) /* {{{ */