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phpv8/v8js_class.cc
Stefan Siegl de23e8dba4 Don't abort PHP on fatal V8 errors, just warn about it
This way the PHP script can handle V8 errors gracefully
(and e.g. provide feedback to the user).

This especially changes behaviour when circular extension
dependencies happen (PHP code can go on, just V8 fails
to start).  This also fixes memory leaks of V8 and V8Js
itself caused by bailing out directly otherwise.
2015-12-30 17:53:46 +01:00

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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2015 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
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 "php_v8js_macros.h"
#include "v8js_v8.h"
#include "v8js_exceptions.h"
#include "v8js_v8object_class.h"
#include "v8js_timer.h"
#include <functional>
#include <algorithm>
#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;
/* }}} */
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;
/* {{{ Extension container */
struct v8js_jsext {
zend_bool auto_enable;
HashTable *deps_ht;
const char **deps;
int deps_count;
zend_string *name;
zend_string *source;
v8::Extension *extension;
};
/* }}} */
#if PHP_V8_API_VERSION >= 4004010
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
static void v8js_free_storage(zend_object *object TSRMLS_DC) /* {{{ */
{
v8js_ctx *c = v8js_ctx_fetch_object(object);
zend_object_std_dtor(&c->std TSRMLS_CC);
zval_dtor(&c->pending_exception);
zval_dtor(&c->module_loader);
/* 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(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_tmpl_t *, v8js_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<zend_function *, v8js_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_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 TSRMLS_CC);
}
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_dtor(&value);
c->isolate->AdjustAmountOfExternalAllocatedMemory(-1024);
it->second.Reset();
}
c->weak_objects.~map();
for (std::map<v8js_tmpl_t *, v8js_persistent_obj_t>::iterator it = c->weak_closures.begin();
it != c->weak_closures.end(); ++it) {
v8js_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_obj_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();
c->modules_base.~vector();
}
/* }}} */
static zend_object* v8js_new(zend_class_entry *ce TSRMLS_DC) /* {{{ */
{
v8js_ctx *c;
c = (v8js_ctx *) ecalloc(1, sizeof(*c) + zend_object_properties_size(ce));
zend_object_std_init(&c->std, ce TSRMLS_CC);
object_properties_init(&c->std, ce);
c->std.handlers = &v8js_object_handlers;
TSRMLS_SET_CTX(c->zts_ctx);
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_base) std::vector<char*>();
new(&c->modules_loaded) std::map<char *, v8js_persistent_obj_t, cmp_str>;
new(&c->template_cache) std::map<const zend_string *,v8js_tmpl_t>();
new(&c->accessor_list) std::vector<v8js_accessor_ctx *>();
new(&c->weak_closures) std::map<v8js_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_tmpl_t *, v8js_tmpl_t>();
new(&c->method_tmpls) std::map<zend_function *, v8js_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;
return &c->std;
}
/* }}} */
static void v8js_free_ext_strarr(const char **arr, int count) /* {{{ */
{
int i;
if (arr) {
for (i = 0; i < count; i++) {
if (arr[i]) {
free((void *) arr[i]);
}
}
free(arr);
}
}
/* }}} */
static void v8js_jsext_free_storage(v8js_jsext *jsext) /* {{{ */
{
if (jsext->deps_ht) {
zend_hash_destroy(jsext->deps_ht);
free(jsext->deps_ht);
}
if (jsext->deps) {
v8js_free_ext_strarr(jsext->deps, jsext->deps_count);
}
delete jsext->extension;
zend_string_release(jsext->name);
zend_string_release(jsext->source);
free(jsext);
}
/* }}} */
static void v8js_jsext_dtor(zval *zv) /* {{{ */
{
v8js_jsext_free_storage(reinterpret_cast<v8js_jsext *>(Z_PTR_P(zv)));
}
/* }}} */
static int v8js_create_ext_strarr(const char ***retval, int count, HashTable *ht) /* {{{ */
{
const char **exts = NULL;
HashPosition pos;
zval *tmp;
int i = 0;
exts = (const char **) calloc(1, count * sizeof(char *));
zend_hash_internal_pointer_reset_ex(ht, &pos);
while ((tmp = zend_hash_get_current_data_ex(ht, &pos))) {
if (Z_TYPE_P(tmp) == IS_STRING) {
exts[i++] = zend_strndup(Z_STRVAL_P(tmp), Z_STRLEN_P(tmp));
} else {
v8js_free_ext_strarr(exts, i);
return FAILURE;
}
zend_hash_move_forward_ex(ht, &pos);
}
*retval = exts;
return SUCCESS;
}
/* }}} */
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);
}
}
/* }}} */
/* {{{ proto void V8Js::__construct([string object_name [, array variables [, array extensions [, bool report_uncaught_exceptions]]])
__construct for V8Js */
static PHP_METHOD(V8Js, __construct)
{
zend_string *object_name = NULL;
zend_bool report_uncaught = 1;
zval *vars_arr = NULL, *exts_arr = NULL;
const char **exts = NULL;
int exts_count = 0;
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() TSRMLS_CC, "|Saab", &object_name, &vars_arr, &exts_arr, &report_uncaught) == FAILURE) {
return;
}
/* Initialize V8 */
v8js_v8_init(TSRMLS_C);
/* Throw PHP exception if uncaught exceptions exist */
c->report_uncaught = report_uncaught;
ZVAL_NULL(&c->pending_exception);
c->in_execution = 0;
#if PHP_V8_API_VERSION >= 4004044
static ArrayBufferAllocator array_buffer_allocator;
static v8::Isolate::CreateParams create_params;
create_params.array_buffer_allocator = &array_buffer_allocator;
c->isolate = v8::Isolate::New(create_params);
#else
c->isolate = v8::Isolate::New();
#endif
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_loader);
/* Include extensions used by this context */
/* Note: Extensions registered with auto_enable do not need to be added separately like this. */
if (exts_arr)
{
exts_count = zend_hash_num_elements(Z_ARRVAL_P(exts_arr));
if (v8js_create_ext_strarr(&exts, exts_count, Z_ARRVAL_P(exts_arr)) == FAILURE) {
zend_throw_exception(php_ce_v8js_exception,
"Invalid extensions array passed", 0);
return;
}
}
/* Declare configuration for extensions */
v8::ExtensionConfiguration extension_conf(exts_count, exts);
// 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 */
// This needs to be done within the context isolate
v8::V8::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::FunctionTemplate> tpl = v8::FunctionTemplate::New(c->isolate, 0);
tpl->SetClassName(V8JS_SYM("V8Js"));
c->global_template.Reset(isolate, tpl);
/* Register builtin methods */
v8js_register_methods(tpl->InstanceTemplate(), c);
/* Create context */
v8::Local<v8::Context> context = v8::Context::New(isolate, &extension_conf, tpl->InstanceTemplate());
if (exts) {
v8js_free_ext_strarr(exts, exts_count);
}
/* If extensions have errors, context will be empty. (NOTE: This is V8 stuff, they expect the passed sources to compile :) */
if (context.IsEmpty()) {
zend_throw_exception(php_ce_v8js_exception,
"Failed to create V8 context. "
"Check that registered extensions do not have errors.", 0);
return;
}
context->SetAlignedPointerInEmbedderData(1, c);
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());
php_obj_t->SetClassName(V8JS_SYML(ZSTR_VAL(ce->name), 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 TSRMLS_CC);
}
/* Set name for the PHP JS object */
v8::Local<v8::String> object_name_js = (object_name && ZSTR_LEN(object_name))
? V8JS_ZSYM(object_name)
: V8JS_SYM("PHP");
c->object_name.Reset(isolate, object_name_js);
/* Add the PHP object into global object */
v8::Local<v8::Object> php_obj = php_obj_t->InstanceTemplate()->NewInstance();
V8JS_GLOBAL(isolate)->ForceSet(object_name_js, php_obj, v8::ReadOnly);
/* Export public property values */
HashTable *properties = zend_std_get_properties(getThis() TSRMLS_CC);
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 TSRMLS_CC);
if(property_info &&
property_info != ZEND_WRONG_PROPERTY_INFO &&
property_info->flags & ZEND_ACC_PUBLIC) {
/* Write value to PHP JS object */
value = OBJ_PROP(Z_OBJ_P(getThis()), property_info->offset);
php_obj->ForceSet(V8JS_ZSYM(member), zval_to_v8js(value, isolate TSRMLS_CC), v8::ReadOnly);
}
} 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 TSRMLS_CC);
RETURN_FALSE;
}
/* }}} */
/* {{{ proto V8JS::__wakeup()
*/
PHP_METHOD(V8Js, __wakeup)
{
zend_throw_exception(php_ce_v8js_exception,
"You cannot serialize or unserialize V8Js instances", 0 TSRMLS_CC);
RETURN_FALSE;
}
/* }}} */
static void v8js_compile_script(zval *this_ptr, zend_string *str, zend_string *identifier, v8js_script **ret TSRMLS_DC)
{
v8js_script *res = NULL;
V8JS_BEGIN_CTX(c, this_ptr)
/* Catch JS exceptions */
v8::TryCatch try_catch;
/* Set script identifier */
v8::Local<v8::String> sname = identifier ? V8JS_ZSTR(identifier) : V8JS_SYM("V8Js::compileString()");
/* Compiles a string context independently. TODO: Add a php function which calls this and returns the result as resource which can be executed later. */
v8::Local<v8::String> source = V8JS_ZSTR(str);
v8::Local<v8::Script> script = v8::Script::Compile(source, sname);
/* Compile errors? */
if (script.IsEmpty()) {
v8js_throw_script_exception(c->isolate, &try_catch TSRMLS_CC);
return;
}
res = (v8js_script *)emalloc(sizeof(v8js_script));
res->script = new v8::Persistent<v8::Script, v8::CopyablePersistentTraits<v8::Script>>(c->isolate, script);
v8::String::Utf8Value _sname(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, long memory_limit, zval **return_value TSRMLS_DC)
{
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< v8::Local<v8::Value>(v8::Isolate *) > v8_call = [res](v8::Isolate *isolate) {
v8::Local<v8::Script> script = v8::Local<v8::Script>::New(isolate, *res->script);
return script->Run();
};
v8js_v8_call(c, return_value, flags, time_limit, memory_limit, v8_call TSRMLS_CC);
}
/* {{{ proto mixed V8Js::executeString(string script [, string identifier [, int flags]])
*/
static PHP_METHOD(V8Js, executeString)
{
zend_string *str = NULL, *identifier = NULL;
int str_len = 0, identifier_len = 0;
long flags = V8JS_FLAG_NONE, time_limit = 0, memory_limit = 0;
v8js_script *res = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "S|Slll", &str, &identifier, &flags, &time_limit, &memory_limit) == FAILURE) {
return;
}
v8js_compile_script(getThis(), str, identifier, &res TSRMLS_CC);
if (!res) {
RETURN_FALSE;
}
v8js_execute_script(getThis(), res, flags, time_limit, memory_limit, &return_value TSRMLS_CC);
v8js_script_free(res);
efree(res);
}
/* }}} */
/* {{{ proto mixed V8Js::compileString(string script [, string identifier])
*/
static PHP_METHOD(V8Js, compileString)
{
zend_string *str = NULL, *identifier = NULL;
int str_len = 0, identifier_len = 0;
v8js_script *res = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "S|S", &str, &identifier) == FAILURE) {
return;
}
v8js_compile_script(getThis(), str, identifier, &res TSRMLS_CC);
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);
}
return;
}
/* }}} */
/* {{{ 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() TSRMLS_CC, "r|lll", &zscript, &flags, &time_limit, &memory_limit) == FAILURE) {
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, memory_limit, &return_value TSRMLS_CC);
}
/* }}} */
/* {{{ proto mixed V8Js::checkString(string script)
*/
static PHP_METHOD(V8Js, checkString)
{
zend_string *str = NULL;
int str_len = 0;
zend_string *identifier = zend_string_init("V8Js::checkString()", 19, 0);
v8js_script *res = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "S", &str) == FAILURE) {
return;
}
v8js_compile_script(getThis(), str, identifier, &res TSRMLS_CC);
zend_string_release(identifier);
if (!res) {
RETURN_FALSE;
}
v8js_script_free(res);
efree(res);
RETURN_TRUE;
}
/* }}} */
/* {{{ proto mixed V8Js::getPendingException()
*/
static PHP_METHOD(V8Js, getPendingException)
{
v8js_ctx *c;
if (zend_parse_parameters_none() == FAILURE) {
return;
}
c = Z_V8JS_CTX_OBJ_P(getThis());
if (Z_TYPE(c->pending_exception) == IS_OBJECT) {
RETURN_ZVAL(&c->pending_exception, 1, 0);
}
}
/* }}} */
/* {{{ proto void V8Js::clearPendingException()
*/
static PHP_METHOD(V8Js, clearPendingException)
{
v8js_ctx *c;
if (zend_parse_parameters_none() == FAILURE) {
return;
}
c = Z_V8JS_CTX_OBJ_P(getThis());
if (Z_TYPE(c->pending_exception) == IS_OBJECT) {
zval_dtor(&c->pending_exception);
ZVAL_NULL(&c->pending_exception);
}
}
/* }}} */
/* {{{ proto void V8Js::setModuleLoader(string module)
*/
static PHP_METHOD(V8Js, setModuleLoader)
{
v8js_ctx *c;
zval *callable;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &callable) == FAILURE) {
return;
}
c = Z_V8JS_CTX_OBJ_P(getThis());
ZVAL_COPY(&c->module_loader, 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() TSRMLS_CC, "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() TSRMLS_CC, "l", &memory_limit) == FAILURE) {
return;
}
c = Z_V8JS_CTX_OBJ_P(getThis());
c->memory_limit = 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 = 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));
}
}
/* }}} */
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);
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 int v8js_register_extension(zend_string *name, zend_string *source, zval *deps_arr, zend_bool auto_enable TSRMLS_DC) /* {{{ */
{
v8js_jsext *jsext = NULL;
#ifdef ZTS
v8js_process_globals.lock.lock();
#endif
if (!v8js_process_globals.extensions) {
v8js_process_globals.extensions = (HashTable *) malloc(sizeof(HashTable));
zend_hash_init(v8js_process_globals.extensions, 1, NULL, v8js_jsext_dtor, 1);
} else if (zend_hash_exists(v8js_process_globals.extensions, name)) {
#ifdef ZTS
v8js_process_globals.lock.unlock();
#endif
return FAILURE;
}
jsext = (v8js_jsext *) calloc(1, sizeof(v8js_jsext));
if (deps_arr) {
jsext->deps_count = zend_hash_num_elements(Z_ARRVAL_P(deps_arr));
if (v8js_create_ext_strarr(&jsext->deps, jsext->deps_count, Z_ARRVAL_P(deps_arr)) == FAILURE) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid dependency array passed");
v8js_jsext_free_storage(jsext);
#ifdef ZTS
v8js_process_globals.lock.unlock();
#endif
return FAILURE;
}
}
jsext->auto_enable = auto_enable;
jsext->name = zend_string_dup(name, 1);
jsext->source = zend_string_dup(source, 1);
if (jsext->deps) {
jsext->deps_ht = (HashTable *) malloc(sizeof(HashTable));
zend_hash_init(jsext->deps_ht, jsext->deps_count, NULL, v8js_persistent_zval_dtor, 1);
zend_hash_copy(jsext->deps_ht, Z_ARRVAL_P(deps_arr), v8js_persistent_zval_ctor);
}
jsext->extension = new v8::Extension(ZSTR_VAL(jsext->name), ZSTR_VAL(jsext->source), jsext->deps_count, jsext->deps);
if (!zend_hash_add_ptr(v8js_process_globals.extensions, jsext->name, jsext)) {
v8js_jsext_free_storage(jsext);
#ifdef ZTS
v8js_process_globals.lock.unlock();
#endif
return FAILURE;
}
#ifdef ZTS
v8js_process_globals.lock.unlock();
#endif
jsext->extension->set_auto_enable(auto_enable ? true : false);
v8::RegisterExtension(jsext->extension);
return SUCCESS;
}
/* }}} */
/* {{{ proto bool V8Js::registerExtension(string ext_name, string script [, array deps [, bool auto_enable]])
*/
static PHP_METHOD(V8Js, registerExtension)
{
zend_string *ext_name, *script;
zval *deps_arr = NULL;
zend_bool auto_enable = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "SS|ab", &ext_name, &script, &deps_arr, &auto_enable) == FAILURE) {
return;
}
if (!ZSTR_LEN(ext_name)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Extension name cannot be empty");
} else if (!ZSTR_LEN(script)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Script cannot be empty");
} else if (v8js_register_extension(ext_name, script, deps_arr, auto_enable TSRMLS_CC) == SUCCESS) {
RETURN_TRUE;
}
RETURN_FALSE;
}
/* }}} */
/* ## Static methods ## */
/* {{{ proto array V8Js::getExtensions()
*/
static PHP_METHOD(V8Js, getExtensions)
{
v8js_jsext *jsext;
ulong index;
zend_string *key;
zval *val, ext;
if (zend_parse_parameters_none() == FAILURE) {
return;
}
array_init(return_value);
#ifdef ZTS
v8js_process_globals.lock.lock();
#endif
if (v8js_process_globals.extensions) {
ZEND_HASH_FOREACH_KEY_VAL(v8js_process_globals.extensions, index, key, val) {
if (key) {
jsext = (v8js_jsext *) Z_PTR_P(val);
array_init(&ext);
add_assoc_bool_ex(&ext, ZEND_STRL("auto_enable"), jsext->auto_enable);
if (jsext->deps_ht) {
zval deps_arr;
array_init(&deps_arr);
zend_hash_copy(Z_ARRVAL_P(&deps_arr), jsext->deps_ht, (copy_ctor_func_t) zval_add_ref);
add_assoc_zval_ex(&ext, ZEND_STRL("deps"), &deps_arr);
}
add_assoc_zval_ex(return_value, ZSTR_VAL(key), ZSTR_LEN(key), &ext);
}
} ZEND_HASH_FOREACH_END();
}
#ifdef ZTS
v8js_process_globals.lock.unlock();
#endif
}
/* }}} */
/* {{{ 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, extensions)
ZEND_ARG_INFO(0, report_uncaught_exceptions)
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(arginfo_v8js_getpendingexception, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_v8js_clearpendingexception, 0)
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_registerextension, 0, 0, 2)
ZEND_ARG_INFO(0, extension_name)
ZEND_ARG_INFO(0, script)
ZEND_ARG_INFO(0, dependencies)
ZEND_ARG_INFO(0, auto_enable)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_v8js_getextensions, 0)
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()
static 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_sleep, 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, checkString, arginfo_v8js_checkstring, ZEND_ACC_PUBLIC|ZEND_ACC_DEPRECATED)
PHP_ME(V8Js, getPendingException, arginfo_v8js_getpendingexception, ZEND_ACC_PUBLIC)
PHP_ME(V8Js, clearPendingException, arginfo_v8js_clearpendingexception, ZEND_ACC_PUBLIC)
PHP_ME(V8Js, setModuleLoader, arginfo_v8js_setmoduleloader, ZEND_ACC_PUBLIC)
PHP_ME(V8Js, registerExtension, arginfo_v8js_registerextension, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
PHP_ME(V8Js, getExtensions, arginfo_v8js_getextensions, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
PHP_ME(V8Js, setTimeLimit, arginfo_v8js_settimelimit, ZEND_ACC_PUBLIC)
PHP_ME(V8Js, setMemoryLimit, arginfo_v8js_setmemorylimit, ZEND_ACC_PUBLIC)
{NULL, NULL, NULL}
};
/* }}} */
/* V8Js object handlers */
static void v8js_write_property(zval *object, zval *member, zval *value, void **cache_slot TSRMLS_DC) /* {{{ */
{
V8JS_BEGIN_CTX(c, object)
/* Check whether member is public, if so, export to V8. */
zend_property_info *property_info = zend_get_property_info(c->std.ce, Z_STR_P(member), 1 TSRMLS_CC);
if(!property_info ||
(property_info != ZEND_WRONG_PROPERTY_INFO &&
property_info->flags & ZEND_ACC_PUBLIC)) {
/* Global PHP JS object */
v8::Local<v8::String> object_name_js = v8::Local<v8::String>::New(isolate, c->object_name);
v8::Local<v8::Object> jsobj = V8JS_GLOBAL(isolate)->Get(object_name_js)->ToObject();
/* Write value to PHP JS object */
jsobj->ForceSet(V8JS_SYML(Z_STRVAL_P(member), Z_STRLEN_P(member)), zval_to_v8js(value, isolate TSRMLS_CC), v8::ReadOnly);
}
/* Write value to PHP object */
std_object_handlers.write_property(object, member, value, NULL);
}
/* }}} */
static void v8js_unset_property(zval *object, zval *member, void **cache_slot TSRMLS_DC) /* {{{ */
{
V8JS_BEGIN_CTX(c, object)
/* Global PHP JS object */
v8::Local<v8::String> object_name_js = v8::Local<v8::String>::New(isolate, c->object_name);
v8::Local<v8::Object> jsobj = V8JS_GLOBAL(isolate)->Get(object_name_js)->ToObject();
/* Delete value from PHP JS object */
jsobj->Delete(V8JS_SYML(Z_STRVAL_P(member), Z_STRLEN_P(member)));
/* Unset from PHP object */
std_object_handlers.unset_property(object, member, NULL);
}
/* }}} */
PHP_MINIT_FUNCTION(v8js_class) /* {{{ */
{
zend_class_entry ce;
/* V8Js Class */
INIT_CLASS_ENTRY(ce, "V8Js", v8js_methods);
php_ce_v8js = zend_register_internal_class(&ce TSRMLS_CC);
php_ce_v8js->create_object = v8js_new;
/* V8Js handlers */
memcpy(&v8js_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
v8js_object_handlers.clone_obj = NULL;
v8js_object_handlers.write_property = v8js_write_property;
v8js_object_handlers.unset_property = v8js_unset_property;
/* V8Js Class Constants */
zend_declare_class_constant_string(php_ce_v8js, ZEND_STRL("V8_VERSION"), PHP_V8_VERSION TSRMLS_CC);
zend_declare_class_constant_long(php_ce_v8js, ZEND_STRL("FLAG_NONE"), V8JS_FLAG_NONE TSRMLS_CC);
zend_declare_class_constant_long(php_ce_v8js, ZEND_STRL("FLAG_FORCE_ARRAY"), V8JS_FLAG_FORCE_ARRAY TSRMLS_CC);
zend_declare_class_constant_long(php_ce_v8js, ZEND_STRL("FLAG_PROPAGATE_PHP_EXCEPTIONS"), V8JS_FLAG_PROPAGATE_PHP_EXCEPTIONS TSRMLS_CC);
le_v8js_script = zend_register_list_destructors_ex(v8js_script_dtor, NULL, PHP_V8JS_SCRIPT_RES_NAME, module_number);
#if PHP_V8_API_VERSION >= 4004010 && PHP_V8_API_VERSION < 4004044
static ArrayBufferAllocator array_buffer_allocator;
v8::V8::SetArrayBufferAllocator(&array_buffer_allocator);
#endif
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
*/