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/**************************************************************************/
/* javascript.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "javascript.h"
#include "core/config/engine.h"
#include "core/io/file_access_encrypted.h"
#include "javascript_instance.h"
#include "javascript_language.h"
#include "scene/resources/resource_format_text.h"
ScriptLanguage *JavaScript::get_language() const {
return JavaScriptLanguage::get_singleton();
}
JavaScript::JavaScript() {
}
JavaScript::~JavaScript() {
}
bool JavaScript::can_instantiate() const {
#ifdef TOOLS_ENABLED
return is_valid() && (is_tool() || ScriptServer::is_scripting_enabled());
#else
return is_valid();
#endif
}
StringName JavaScript::get_global_name() const {
return StringName();
}
StringName JavaScript::get_instance_base_type() const {
static StringName empty;
ERR_FAIL_NULL_V(javascript_class, empty);
ERR_FAIL_NULL_V(javascript_class->native_class, empty);
return javascript_class->native_class->name;
}
ScriptInstance *JavaScript::instance_create(Object *p_this) {
JavaScriptBinder *binder = JavaScriptLanguage::get_thread_binder(Thread::get_caller_id());
ERR_FAIL_NULL_V_MSG(binder, NULL, "Cannot create instance from this thread");
const JavaScriptClassInfo *cls = NULL;
JavaScriptError js_err;
if (!bytecode.is_empty()) {
cls = binder->parse_javascript_class(bytecode, script_path, false, &js_err);
} else {
cls = binder->parse_javascript_class(code, script_path, false, &js_err);
}
ERR_FAIL_NULL_V_MSG(cls, NULL, vformat("Cannot parse class from %s", get_script_path()));
if (!ClassDB::is_parent_class(p_this->get_class_name(), cls->native_class->name)) {
ERR_FAIL_V_MSG(NULL, vformat("Script inherits from native type '%s', so it can't be instanced in object of type: '%s'", cls->native_class->name, p_this->get_class()));
}
JavaScriptGCHandler js_instance = binder->create_js_instance_for_godot_object(cls, p_this);
ERR_FAIL_NULL_V(js_instance.javascript_object, NULL);
JavaScriptInstance *instance = memnew(JavaScriptInstance);
instance->script = Ref<JavaScript>(this);
instance->owner = p_this;
instance->binder = binder;
instance->javascript_object = js_instance;
instance->javascript_class = cls;
instance->owner->set_script_instance(instance);
instances.insert(p_this);
return instance;
}
PlaceHolderScriptInstance *JavaScript::placeholder_instance_create(Object *p_this) {
#ifdef TOOLS_ENABLED
PlaceHolderScriptInstance *si = memnew(PlaceHolderScriptInstance(JavaScriptLanguage::get_singleton(), Ref<Script>(this), p_this));
instances.insert(p_this);
placeholders.insert(si);
update_exports();
return si;
#else
return NULL;
#endif
}
Error JavaScript::reload(bool p_keep_state) {
javascript_class = NULL;
Error err = OK;
JavaScriptBinder *binder = JavaScriptLanguage::get_thread_binder(Thread::get_caller_id());
ERR_FAIL_COND_V_MSG(binder == NULL, ERR_INVALID_DATA, "Cannot load script in this thread");
JavaScriptError js_err;
if (!bytecode.is_empty()) {
javascript_class = binder->parse_javascript_class(bytecode, script_path, true, &js_err);
} else {
javascript_class = binder->parse_javascript_class(code, script_path, true, &js_err);
}
if (!javascript_class) {
err = ERR_PARSE_ERROR;
ERR_PRINT(binder->error_to_string(js_err));
} else {
#ifdef TOOLS_ENABLED
set_last_modified_time(FileAccess::get_modified_time(script_path));
p_keep_state = true;
for (Object *owner : instances) {
HashMap<StringName, Variant> values;
if (p_keep_state) {
for (const KeyValue<StringName, JavaScriptProperyInfo> &pair : javascript_class->properties) {
values.insert(pair.key, owner->get(pair.key));
}
}
ScriptInstance *si = owner->get_script_instance();
if (si->is_placeholder()) {
PlaceHolderScriptInstance *psi = static_cast<PlaceHolderScriptInstance *>(si);
if (javascript_class->tool) {
_placeholder_erased(psi);
}
} else if (!javascript_class->tool) { // from tooled to !tooled
PlaceHolderScriptInstance *psi = placeholder_instance_create(owner);
owner->set_script_instance(psi);
instances.insert(owner);
}
if (javascript_class->tool) { // re-create as an instance
instance_create(owner);
}
if (p_keep_state) {
for (const KeyValue<StringName, Variant> &pair : values) {
if (const JavaScriptProperyInfo *epi = javascript_class->properties.getptr(pair.key)) {
const Variant &backup = pair.value;
owner->set(pair.key, backup.get_type() == epi->type ? backup : epi->default_value);
}
}
}
}
#endif
}
return err;
}
bool JavaScript::instance_has(const Object *p_this) const {
return instances.has(const_cast<Object *>(p_this));
}
#ifdef TOOLS_ENABLED
void JavaScript::_placeholder_erased(PlaceHolderScriptInstance *p_placeholder) {
instances.erase(p_placeholder->get_owner());
placeholders.erase(p_placeholder);
}
#endif
bool JavaScript::has_method(const StringName &p_method) const {
if (!javascript_class)
return false;
return javascript_class->methods.getptr(p_method) != NULL;
}
MethodInfo JavaScript::get_method_info(const StringName &p_method) const {
MethodInfo mi;
ERR_FAIL_NULL_V(javascript_class, mi);
if (const MethodInfo *ptr = javascript_class->methods.getptr(p_method)) {
mi = *ptr;
}
return mi;
}
bool JavaScript::is_tool() const {
if (!javascript_class)
return false;
return javascript_class->tool;
}
void JavaScript::get_script_method_list(List<MethodInfo> *p_list) const {
if (!javascript_class)
return;
for (const KeyValue<StringName, MethodInfo> &pair : javascript_class->methods) {
p_list->push_back(pair.value);
}
}
void JavaScript::get_script_property_list(List<PropertyInfo> *p_list) const {
if (!javascript_class)
return;
for (const KeyValue<StringName, JavaScriptProperyInfo> &pair : javascript_class->properties) {
p_list->push_back(pair.value);
}
}
bool JavaScript::get_property_default_value(const StringName &p_property, Variant &r_value) const {
if (!javascript_class)
return false;
if (const JavaScriptProperyInfo *pi = javascript_class->properties.getptr(p_property)) {
r_value = pi->default_value;
return true;
}
return false;
}
void JavaScript::update_exports() {
#ifdef TOOLS_ENABLED
if (!javascript_class)
return;
List<PropertyInfo> props;
HashMap<StringName, Variant> values;
for (const KeyValue<StringName, JavaScriptProperyInfo> &pair : javascript_class->properties) {
const JavaScriptProperyInfo &pi = pair.value;
props.push_back(pi);
values[pair.key] = pi.default_value;
}
for (PlaceHolderScriptInstance *s : placeholders) {
s->update(props, values);
}
#endif
}
bool JavaScript::has_script_signal(const StringName &p_signal) const {
if (!javascript_class)
return false;
return javascript_class->signals.has(p_signal);
}
void JavaScript::get_script_signal_list(List<MethodInfo> *r_signals) const {
if (!javascript_class)
return;
for (const KeyValue<StringName, MethodInfo> &pair : javascript_class->signals) {
r_signals->push_back(pair.value);
}
}
bool JavaScript::is_valid() const {
return javascript_class != NULL;
}
void JavaScript::_bind_methods() {
}
Ref<Resource> ResourceFormatLoaderJavaScript::load(const String &p_path, const String &p_original_path, Error *r_error, bool p_use_sub_threads, float *r_progress, CacheMode p_cache_mode) {
Error err = OK;
Ref<JavaScriptModule> module = ResourceFormatLoaderJavaScriptModule::load_static(p_path, p_original_path, &err);
if (r_error)
*r_error = err;
ERR_FAIL_COND_V_MSG(err != OK, Ref<Resource>(), "Cannot load script file '" + p_path + "'.");
Ref<JavaScript> javaScript;
javaScript.instantiate();
javaScript->set_script_path(p_path);
javaScript->bytecode = module->get_bytecode();
javaScript->set_source_code(module->get_source_code());
err = javaScript->reload();
if (r_error)
*r_error = err;
ERR_FAIL_COND_V_MSG(err != OK, Ref<Resource>(), "Parse source code from file '" + p_path + "' failed.");
#ifdef TOOLS_ENABLED
JavaScriptLanguage::get_singleton()->get_scripts().insert(javaScript);
#endif
return javaScript;
}
void ResourceFormatLoaderJavaScript::get_recognized_extensions(List<String> *p_extensions) const {
p_extensions->push_front(EXT_JSCLASS);
}
void ResourceFormatLoaderJavaScript::get_recognized_extensions_for_type(const String &p_type, List<String> *p_extensions) const {
get_recognized_extensions(p_extensions);
}
bool ResourceFormatLoaderJavaScript::handles_type(const String &p_type) const {
return p_type == JavaScript::get_class_static();
}
String ResourceFormatLoaderJavaScript::get_resource_type(const String &p_path) const {
String el = p_path.get_extension().to_lower();
if (el == EXT_JSCLASS)
return JavaScript::get_class_static();
return "";
}
bool ResourceFormatLoaderJavaScript::recognize_path(const String &p_path, const String &p_for_type) const {
return p_path.get_extension() == EXT_JSCLASS;
}
Error ResourceFormatSaverJavaScript::save(const Ref<Resource> &p_resource, const String &p_path, uint32_t p_flags) {
Ref<JavaScript> javaScript = p_resource;
ERR_FAIL_COND_V(javaScript.is_null(), ERR_INVALID_PARAMETER);
String source = javaScript->get_source_code();
Error err;
Ref<FileAccess> file = FileAccess::open(p_path, FileAccess::WRITE, &err);
ERR_FAIL_COND_V_MSG(err, err, "Cannot save file '" + p_path + "'.");
file->store_string(source);
if (file->get_error() != OK && file->get_error() != ERR_FILE_EOF) {
return ERR_CANT_CREATE;
}
if (ScriptServer::is_reload_scripts_on_save_enabled()) {
javaScript->reload();
}
return OK;
}
void ResourceFormatSaverJavaScript::get_recognized_extensions(const Ref<Resource> &p_resource, List<String> *p_extensions) const {
if (Object::cast_to<JavaScript>(*p_resource)) {
p_extensions->push_back(EXT_JSCLASS);
}
}
bool ResourceFormatSaverJavaScript::recognize(const Ref<Resource> &p_resource) const {
return Object::cast_to<JavaScript>(*p_resource) != nullptr;
}
void JavaScriptModule::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_script_path", "script_path"), &JavaScriptModule::set_script_path);
ClassDB::bind_method(D_METHOD("get_script_path"), &JavaScriptModule::get_script_path);
ClassDB::bind_method(D_METHOD("set_source_code", "source_code"), &JavaScriptModule::set_source_code);
ClassDB::bind_method(D_METHOD("get_source_code"), &JavaScriptModule::get_source_code);
ClassDB::bind_method(D_METHOD("set_bytecode", "bytecode"), &JavaScriptModule::set_bytecode);
ClassDB::bind_method(D_METHOD("get_bytecode"), &JavaScriptModule::get_bytecode);
ADD_PROPERTY(PropertyInfo(Variant::STRING, "script_path"), "set_script_path", "get_script_path");
}
JavaScriptModule::JavaScriptModule() {
set_source_code("module.exports = {};\n");
}
Ref<Resource> ResourceFormatLoaderJavaScriptModule::load(const String &p_path, const String &p_original_path, Error *r_error, bool p_use_sub_threads, float *r_progress, ResourceFormatLoader::CacheMode p_cache_mode) {
return ResourceFormatLoaderJavaScriptModule::load_static(p_path, p_original_path, r_error);
}
void ResourceFormatLoaderJavaScriptModule::get_recognized_extensions(List<String> *p_extensions) const {
p_extensions->push_front(EXT_JSMODULE);
}
void ResourceFormatLoaderJavaScriptModule::get_recognized_extensions_for_type(const String &p_type, List<String> *p_extensions) const {
get_recognized_extensions(p_extensions);
}
bool ResourceFormatLoaderJavaScriptModule::handles_type(const String &p_type) const {
return p_type == JavaScriptModule::get_class_static();
}
String ResourceFormatLoaderJavaScriptModule::get_resource_type(const String &p_path) const {
String el = p_path.get_extension().to_lower();
if (el == EXT_JSMODULE)
return JavaScriptModule::get_class_static();
return "";
}
Ref<Resource> ResourceFormatLoaderJavaScriptModule::load_static(const String &p_path, const String &p_original_path, Error *r_error) {
Error err = ERR_FILE_CANT_OPEN;
Ref<JavaScriptModule> module;
module.instantiate();
module->set_script_path(p_path);
if (p_path.ends_with("." EXT_JSMODULE) || p_path.ends_with("." EXT_JSCLASS) || p_path.ends_with("." EXT_JSON)) {
String code = FileAccess::get_file_as_string(p_path, &err);
if (r_error)
*r_error = err;
ERR_FAIL_COND_V_MSG(err != OK, Ref<Resource>(), "Cannot load source code from file '" + p_path + "'.");
module->set_source_code(code);
}
#if 0
else if (p_path.ends_with("." EXT_JSMODULE_BYTECODE) || p_path.ends_with("." EXT_JSCLASS_BYTECODE)) {
module->set_bytecode(FileAccess::get_file_as_array(p_path, &err));
if (r_error) *r_error = err;
ERR_FAIL_COND_V_MSG(err != OK, Ref<Resource>(), "Cannot load bytecode from file '" + p_path + "'.");
} else if (p_path.ends_with("." EXT_JSMODULE_ENCRYPTED) || p_path.ends_with("." EXT_JSCLASS_ENCRYPTED)) {
Ref<FileAccess> fa = FileAccess::open(p_path, FileAccess::READ);
if (fa.is_valid() && fa->is_open()) {
Ref<FileAccessEncrypted> fae = memnew(FileAccessEncrypted);
Vector<uint8_t> key;
key.resize(32);
for (int i = 0; i < key.size(); i++) {
key.write[i] = script_encryption_key[i];
}
err = fae->open_and_parse(fa, key, FileAccessEncrypted::MODE_READ);
if (err == OK) {
Vector<uint8_t> encrypted_code;
encrypted_code.resize(fae->get_length());
fae->get_buffer(encrypted_code.ptrw(), encrypted_code.size());
String code;
if (code.parse_utf8((const char *)encrypted_code.ptr(), encrypted_code.size())) {
err = ERR_PARSE_ERROR;
} else {
module->set_source_code(code);
}
}
} else {
err = ERR_CANT_OPEN;
}
}
#endif
if (r_error)
*r_error = err;
ERR_FAIL_COND_V(err != OK, Ref<Resource>());
return module;
}
Error ResourceFormatSaverJavaScriptModule::save(const Ref<Resource> &p_resource, const String &p_path, uint32_t p_flags) {
Ref<JavaScriptModule> module = p_resource;
ERR_FAIL_COND_V(module.is_null(), ERR_INVALID_PARAMETER);
String source = module->get_source_code();
Error err;
Ref<FileAccess> file = FileAccess::open(p_path, FileAccess::WRITE, &err);
ERR_FAIL_COND_V_MSG(err, err, "Cannot save file '" + p_path + "'.");
file->store_string(source);
if (file->get_error() != OK && file->get_error() != ERR_FILE_EOF) {
return ERR_CANT_CREATE;
}
return OK;
}
void ResourceFormatSaverJavaScriptModule::get_recognized_extensions(const Ref<Resource> &p_resource, List<String> *p_extensions) const {
if (Object::cast_to<JavaScriptModule>(*p_resource)) {
p_extensions->push_back(EXT_JSMODULE);
}
}
bool ResourceFormatSaverJavaScriptModule::recognize(const Ref<Resource> &p_resource) const {
return Object::cast_to<JavaScriptModule>(*p_resource) != nullptr;
}
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