/* +----------------------------------------------------------------------+ | PHP Version 7 | +----------------------------------------------------------------------+ | Copyright (c) 1997-2017 The PHP Group | +----------------------------------------------------------------------+ | http://www.opensource.org/licenses/mit-license.php MIT License | +----------------------------------------------------------------------+ | Author: Jani Taskinen | | Author: Patrick Reilly | | Author: Stefan Siegl | +----------------------------------------------------------------------+ */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #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" } #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> *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; }; /* }}} */ 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); } }; 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->pending_exception); zval_ptr_dtor(&c->module_normaliser); zval_ptr_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::Local::New(c->isolate, c->context); v8::Context::Scope context_scope(v8_context); v8::Local object_name_js = v8::Local::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::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::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::iterator it = c->template_cache.begin(); it != c->template_cache.end(); ++it) { it->second.Reset(); } c->template_cache.~map(); /* Clear contexts */ for (std::vector::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::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::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::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::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::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(); zval_ptr_dtor(&c->zval_snapshot_blob); } /* }}} */ 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(); new(&c->context) v8::Persistent(); new(&c->global_template) v8::Persistent(); new(&c->array_tmpl) v8::Persistent(); new(&c->modules_stack) std::vector(); new(&c->modules_base) std::vector(); new(&c->modules_loaded) std::map; new(&c->template_cache) std::map(); new(&c->accessor_list) std::vector(); new(&c->weak_closures) std::map(); new(&c->weak_objects) std::map(); new(&c->call_impls) std::map(); new(&c->method_tmpls) std::map(); new(&c->v8js_v8objects) std::list(); new(&c->script_objects) std::vector(); // @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_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; // Free the persisted non-interned strings we allocated. 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(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); } } /* }}} */ #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 [, array extensions [, bool report_uncaught_exceptions [, string snapshot_blob]]]]]) __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; 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(), "|Saabz", &object_name, &vars_arr, &exts_arr, &report_uncaught, &snapshot_blob) == FAILURE) { return; } /* Initialize V8 */ v8js_v8_init(); /* Throw PHP exception if uncaught exceptions exist */ c->report_uncaught = report_uncaught; ZVAL_NULL(&c->pending_exception); c->in_execution = 0; new (&c->create_params) v8::Isolate::CreateParams(); static ArrayBufferAllocator array_buffer_allocator; c->create_params.array_buffer_allocator = &array_buffer_allocator; 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::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(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); /* 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 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 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 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::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(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 object_name_js; if (object_name && ZSTR_LEN(object_name)) { if (ZSTR_LEN(object_name) > std::numeric_limits::max()) { zend_throw_exception(php_ce_v8js_exception, "PHP JS object class name exceeds maximum supported length", 0); return; } object_name_js = v8::String::NewFromUtf8(isolate, ZSTR_VAL(object_name), v8::String::kInternalizedString, static_cast(ZSTR_LEN(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 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()); 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::max()) { zend_throw_exception(php_ce_v8js_exception, "Property name exceeds maximum supported length", 0); return; } v8::Local key = v8::String::NewFromUtf8(isolate, ZSTR_VAL(member), v8::String::kInternalizedString, static_cast(ZSTR_LEN(member))); /* Write value to PHP JS object */ value = OBJ_PROP(Z_OBJ_P(getThis()), property_info->offset); php_obj->ForceSet(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(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|ZEND_ACC_CLONE)) != 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::max()) { zend_throw_exception(php_ce_v8js_exception, "Method name exceeds maximum supported length", 0); return; } v8::Local method_name = v8::String::NewFromUtf8(isolate, ZSTR_VAL(method_ptr->common.function_name), v8::String::kInternalizedString, static_cast(ZSTR_LEN(method_ptr->common.function_name))); v8::Local ft; /*try { ft = v8::Local::New (isolate, c->method_tmpls.at(method_ptr)); } catch (const std::out_of_range &) */ { ft = v8::FunctionTemplate::New(isolate, v8js_php_callback, v8::External::New((isolate), method_ptr)); // @fixme add/check Signature v8::Signature::New((isolate), tmpl)); v8js_tmpl_t *persistent_ft = &c->method_tmpls[method_ptr]; persistent_ft->Reset(isolate, ft); } php_obj->ForceSet(method_name, ft->GetFunction()); } 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; /* Set script identifier */ if (identifier && ZSTR_LEN(identifier) > std::numeric_limits::max()) { zend_throw_exception(php_ce_v8js_exception, "Script identifier exceeds maximum supported length", 0); return; } v8::Local sname = identifier ? v8::String::NewFromUtf8(isolate, ZSTR_VAL(identifier), v8::String::kNormalString, static_cast(ZSTR_LEN(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. */ if (ZSTR_LEN(str) > std::numeric_limits::max()) { zend_throw_exception(php_ce_v8js_exception, "Script source exceeds maximum supported length", 0); return; } v8::Local source = v8::String::NewFromUtf8(isolate, ZSTR_VAL(str), v8::String::kNormalString, static_cast(ZSTR_LEN(str))); v8::Local script = v8::Script::Compile(source, sname); /* 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>(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, 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::Local(v8::Isolate *) > v8_call = [res](v8::Isolate *isolate) { v8::Local script = v8::Local::New(isolate, *res->script); return script->Run(); }; 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|Slll", &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(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(memory_limit), &return_value); } /* }}} */ /* {{{ proto mixed V8Js::checkString(string script) */ static PHP_METHOD(V8Js, checkString) { zend_string *str = NULL; zend_string *identifier = zend_string_init("V8Js::checkString()", 19, 0); v8js_script *res = NULL; if (zend_parse_parameters(ZEND_NUM_ARGS(), "S", &str) == FAILURE) { return; } v8js_compile_script(getThis(), str, identifier, &res); 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_ptr_dtor(&c->pending_exception); ZVAL_NULL(&c->pending_exception); } } /* }}} */ /* {{{ 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::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 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(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(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); 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::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) /* {{{ */ { 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, 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; // Allocate a persistent string which will survive until module shutdown on both ZTS(Persistent) and NTS(Not interned, those would be cleaned up) // (zend_string_dup would return the original interned string, if interned, so we don't use that) jsext->name = zend_string_init(ZSTR_VAL(name), ZSTR_LEN(name), 1); jsext->source = zend_string_init(ZSTR_VAL(source), ZSTR_LEN(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; } /* }}} */ /* ## Static methods ## */ /* {{{ 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(), "SS|ab", &ext_name, &script, &deps_arr, &auto_enable) == FAILURE) { return; } if (!ZSTR_LEN(ext_name)) { php_error_docref(NULL, E_WARNING, "Extension name cannot be empty"); } else if (!ZSTR_LEN(script)) { php_error_docref(NULL, E_WARNING, "Script cannot be empty"); } else if (v8js_register_extension(ext_name, script, deps_arr, auto_enable) == SUCCESS) { RETURN_TRUE; } RETURN_FALSE; } /* }}} */ /* {{{ proto array V8Js::getExtensions() */ static PHP_METHOD(V8Js, getExtensions) { v8js_jsext *jsext; 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_STR_KEY_VAL(v8js_process_globals.extensions, 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 } /* }}} */ /* {{{ 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::StartupData snapshot_blob = v8::V8::CreateSnapshotDataBlob(ZSTR_VAL(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, extensions) ZEND_ARG_INFO(0, report_uncaught_exceptions) 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(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_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_setaverageobjectsize, 0, 0, 1) ZEND_ARG_INFO(0, average_object_size) 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_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, 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, setModuleNormaliser, arginfo_v8js_setmodulenormaliser, ZEND_ACC_PUBLIC) PHP_ME(V8Js, setModuleLoader, arginfo_v8js_setmoduleloader, 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, 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, createSnapshot, arginfo_v8js_createsnapshot, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC) {NULL, NULL, NULL} }; /* }}} */ /* V8Js object handlers */ static void v8js_write_property(zval *object, zval *member, zval *value, void **cache_slot) /* {{{ */ { 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); if(!property_info || (property_info != ZEND_WRONG_PROPERTY_INFO && (property_info->flags & ZEND_ACC_PUBLIC))) { /* Global PHP JS object */ v8::Local object_name_js = v8::Local::New(isolate, c->object_name); v8::Local jsobj = V8JS_GLOBAL(isolate)->Get(object_name_js)->ToObject(); if (Z_STRLEN_P(member) > std::numeric_limits::max()) { zend_throw_exception(php_ce_v8js_exception, "Property name exceeds maximum supported length", 0); return; } /* Write value to PHP JS object */ v8::Local key = V8JS_SYML(Z_STRVAL_P(member), static_cast(Z_STRLEN_P(member))); jsobj->ForceSet(key, zval_to_v8js(value, isolate), 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) /* {{{ */ { V8JS_BEGIN_CTX(c, object) /* Global PHP JS object */ v8::Local object_name_js = v8::Local::New(isolate, c->object_name); v8::Local jsobj = V8JS_GLOBAL(isolate)->Get(object_name_js)->ToObject(); if (Z_STRLEN_P(member) > std::numeric_limits::max()) { zend_throw_exception(php_ce_v8js_exception, "Property name exceeds maximum supported length", 0); return; } /* Delete value from PHP JS object */ v8::Local key = V8JS_SYML(Z_STRVAL_P(member), static_cast(Z_STRLEN_P(member))); jsobj->Delete(key); /* 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); 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); zend_declare_class_constant_long(php_ce_v8js, ZEND_STRL("FLAG_NONE"), V8JS_FLAG_NONE); zend_declare_class_constant_long(php_ce_v8js, ZEND_STRL("FLAG_FORCE_ARRAY"), V8JS_FLAG_FORCE_ARRAY); zend_declare_class_constant_long(php_ce_v8js, ZEND_STRL("FLAG_PROPAGATE_PHP_EXCEPTIONS"), V8JS_FLAG_PROPAGATE_PHP_EXCEPTIONS); le_v8js_script = zend_register_list_destructors_ex(v8js_script_dtor, NULL, PHP_V8JS_SCRIPT_RES_NAME, module_number); return SUCCESS; } /* }}} */ /* * Local variables: * tab-width: 4 * c-basic-offset: 4 * indent-tabs-mode: t * End: * vim600: noet sw=4 ts=4 fdm=marker * vim<600: noet sw=4 ts=4 */