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pandemonium_engine/platform/javascript/export/export.cpp

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/*************************************************************************/
/* export.cpp */
/*************************************************************************/
/* This file is part of: */
/* PANDEMONIUM ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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 "export.h"
#include "core/io/image_loader.h"
#include "core/io/json.h"
#include "core/io/stream_peer_ssl.h"
#include "core/io/tcp_server.h"
#include "core/io/zip_io.h"
#include "editor/editor_export.h"
#include "editor/editor_node.h"
#include "main/splash.gen.h"
#include "platform/javascript/logo.gen.h"
#include "platform/javascript/run_icon.gen.h"
#include "core/project_settings.h"
#include "editor/editor_settings.h"
class EditorHTTPServer : public Reference {
private:
Ref<TCP_Server> server;
Map<String, String> mimes;
Ref<StreamPeerTCP> tcp;
Ref<StreamPeerSSL> ssl;
Ref<StreamPeer> peer;
Ref<CryptoKey> key;
Ref<X509Certificate> cert;
bool use_ssl = false;
uint64_t time = 0;
uint8_t req_buf[4096];
int req_pos = 0;
void _clear_client() {
peer = Ref<StreamPeer>();
ssl = Ref<StreamPeerSSL>();
tcp = Ref<StreamPeerTCP>();
memset(req_buf, 0, sizeof(req_buf));
time = 0;
req_pos = 0;
}
void _set_internal_certs(Ref<Crypto> p_crypto) {
const String cache_path = EditorSettings::get_singleton()->get_cache_dir();
const String key_path = cache_path.plus_file("html5_server.key");
const String crt_path = cache_path.plus_file("html5_server.crt");
bool regen = !FileAccess::exists(key_path) || !FileAccess::exists(crt_path);
if (!regen) {
key = Ref<CryptoKey>(CryptoKey::create());
cert = Ref<X509Certificate>(X509Certificate::create());
if (key->load(key_path) != OK || cert->load(crt_path) != OK) {
regen = true;
}
}
if (regen) {
key = p_crypto->generate_rsa(2048);
key->save(key_path);
cert = p_crypto->generate_self_signed_certificate(key, "CN=pandemonium-debug.local,O=A Game Dev,C=XXA", "20140101000000", "20340101000000");
cert->save(crt_path);
}
}
public:
EditorHTTPServer() {
mimes["html"] = "text/html";
mimes["js"] = "application/javascript";
mimes["json"] = "application/json";
mimes["pck"] = "application/octet-stream";
mimes["png"] = "image/png";
mimes["svg"] = "image/svg";
mimes["wasm"] = "application/wasm";
server.instance();
stop();
}
void stop() {
server->stop();
_clear_client();
}
Error listen(int p_port, IP_Address p_address, bool p_use_ssl, String p_ssl_key, String p_ssl_cert) {
use_ssl = p_use_ssl;
if (use_ssl) {
Ref<Crypto> crypto = Crypto::create();
if (crypto.is_null()) {
return ERR_UNAVAILABLE;
}
if (!p_ssl_key.empty() && !p_ssl_cert.empty()) {
key = Ref<CryptoKey>(CryptoKey::create());
Error err = key->load(p_ssl_key);
ERR_FAIL_COND_V(err != OK, err);
cert = Ref<X509Certificate>(X509Certificate::create());
err = cert->load(p_ssl_cert);
ERR_FAIL_COND_V(err != OK, err);
} else {
_set_internal_certs(crypto);
}
}
return server->listen(p_port, p_address);
}
bool is_listening() const {
return server->is_listening();
}
void _send_response() {
Vector<String> psa = String((char *)req_buf).split("\r\n");
int len = psa.size();
ERR_FAIL_COND_MSG(len < 4, "Not enough response headers, got: " + itos(len) + ", expected >= 4.");
Vector<String> req = psa[0].split(" ", false);
ERR_FAIL_COND_MSG(req.size() < 2, "Invalid protocol or status code.");
// Wrong protocol
ERR_FAIL_COND_MSG(req[0] != "GET" || req[2] != "HTTP/1.1", "Invalid method or HTTP version.");
const int query_index = req[1].find_char('?');
const String path = (query_index == -1) ? req[1] : req[1].substr(0, query_index);
const String req_file = path.get_file();
const String req_ext = path.get_extension();
const String cache_path = EditorSettings::get_singleton()->get_cache_dir().plus_file("web");
const String filepath = cache_path.plus_file(req_file);
if (!mimes.has(req_ext) || !FileAccess::exists(filepath)) {
String s = "HTTP/1.1 404 Not Found\r\n";
s += "Connection: Close\r\n";
s += "\r\n";
CharString cs = s.utf8();
peer->put_data((const uint8_t *)cs.get_data(), cs.size() - 1);
return;
}
const String ctype = mimes[req_ext];
FileAccess *f = FileAccess::open(filepath, FileAccess::READ);
ERR_FAIL_COND(!f);
String s = "HTTP/1.1 200 OK\r\n";
s += "Connection: Close\r\n";
s += "Content-Type: " + ctype + "\r\n";
s += "Access-Control-Allow-Origin: *\r\n";
s += "Cross-Origin-Opener-Policy: same-origin\r\n";
s += "Cross-Origin-Embedder-Policy: require-corp\r\n";
s += "Cache-Control: no-store, max-age=0\r\n";
s += "\r\n";
CharString cs = s.utf8();
Error err = peer->put_data((const uint8_t *)cs.get_data(), cs.size() - 1);
if (err != OK) {
memdelete(f);
ERR_FAIL();
}
while (true) {
uint8_t bytes[4096];
uint64_t read = f->get_buffer(bytes, 4096);
if (read == 0) {
break;
}
err = peer->put_data(bytes, read);
if (err != OK) {
memdelete(f);
ERR_FAIL();
}
}
memdelete(f);
}
void poll() {
if (!server->is_listening()) {
return;
}
if (tcp.is_null()) {
if (!server->is_connection_available()) {
return;
}
tcp = server->take_connection();
peer = tcp;
time = OS::get_singleton()->get_ticks_usec();
}
if (OS::get_singleton()->get_ticks_usec() - time > 1000000) {
_clear_client();
return;
}
if (tcp->get_status() != StreamPeerTCP::STATUS_CONNECTED) {
return;
}
if (use_ssl) {
if (ssl.is_null()) {
ssl = Ref<StreamPeerSSL>(StreamPeerSSL::create());
peer = ssl;
ssl->set_blocking_handshake_enabled(false);
if (ssl->accept_stream(tcp, key, cert) != OK) {
_clear_client();
return;
}
}
ssl->poll();
if (ssl->get_status() == StreamPeerSSL::STATUS_HANDSHAKING) {
// Still handshaking, keep waiting.
return;
}
if (ssl->get_status() != StreamPeerSSL::STATUS_CONNECTED) {
_clear_client();
return;
}
}
while (true) {
char *r = (char *)req_buf;
int l = req_pos - 1;
if (l > 3 && r[l] == '\n' && r[l - 1] == '\r' && r[l - 2] == '\n' && r[l - 3] == '\r') {
_send_response();
_clear_client();
return;
}
int read = 0;
ERR_FAIL_COND(req_pos >= 4096);
Error err = peer->get_partial_data(&req_buf[req_pos], 1, read);
if (err != OK) {
// Got an error
_clear_client();
return;
} else if (read != 1) {
// Busy, wait next poll
return;
}
req_pos += read;
}
}
};
class EditorExportPlatformJavaScript : public EditorExportPlatform {
GDCLASS(EditorExportPlatformJavaScript, EditorExportPlatform);
Ref<ImageTexture> logo;
Ref<ImageTexture> run_icon;
Ref<ImageTexture> stop_icon;
int menu_options = 0;
Ref<EditorHTTPServer> server;
bool server_quit = false;
Mutex server_lock;
Thread server_thread;
enum ExportMode {
EXPORT_MODE_NORMAL = 0,
EXPORT_MODE_THREADS = 1,
EXPORT_MODE_GDNATIVE = 2,
};
String _get_template_name(ExportMode p_mode, bool p_debug) const {
String name = "webassembly";
switch (p_mode) {
case EXPORT_MODE_THREADS:
name += "_threads";
break;
case EXPORT_MODE_GDNATIVE:
name += "_gdnative";
break;
default:
break;
}
if (p_debug) {
name += "_debug.zip";
} else {
name += "_release.zip";
}
return name;
}
Ref<Image> _get_project_icon() const {
Ref<Image> icon;
icon.instance();
const String icon_path = String(GLOBAL_GET("application/config/icon")).strip_edges();
if (icon_path.empty() || ImageLoader::load_image(icon_path, icon) != OK) {
return EditorNode::get_singleton()->get_editor_theme()->get_icon("DefaultProjectIcon", "EditorIcons")->get_data();
}
return icon;
}
Ref<Image> _get_project_splash() const {
Ref<Image> splash;
splash.instance();
const String splash_path = String(GLOBAL_GET("application/boot_splash/image")).strip_edges();
if (splash_path.empty() || ImageLoader::load_image(splash_path, splash) != OK) {
return Ref<Image>(memnew(Image(boot_splash_png)));
}
return splash;
}
Error _extract_template(const String &p_template, const String &p_dir, const String &p_name, bool pwa);
void _replace_strings(Map<String, String> p_replaces, Vector<uint8_t> &r_template);
void _fix_html(Vector<uint8_t> &p_html, const Ref<EditorExportPreset> &p_preset, const String &p_name, bool p_debug, int p_flags, const Vector<SharedObject> p_shared_objects, const Dictionary &p_file_sizes);
Error _add_manifest_icon(const String &p_path, const String &p_icon, int p_size, Array &r_arr);
Error _build_pwa(const Ref<EditorExportPreset> &p_preset, const String p_path, const Vector<SharedObject> &p_shared_objects);
Error _write_or_error(const uint8_t *p_content, int p_len, String p_path);
static void _server_thread_poll(void *data);
public:
virtual void get_preset_features(const Ref<EditorExportPreset> &p_preset, List<String> *r_features);
virtual void get_export_options(List<ExportOption> *r_options);
virtual String get_name() const;
virtual String get_os_name() const;
virtual Ref<Texture> get_logo() const;
virtual bool can_export(const Ref<EditorExportPreset> &p_preset, String &r_error, bool &r_missing_templates) const;
virtual List<String> get_binary_extensions(const Ref<EditorExportPreset> &p_preset) const;
virtual Error export_project(const Ref<EditorExportPreset> &p_preset, bool p_debug, const String &p_path, int p_flags = 0);
virtual bool poll_export();
virtual int get_options_count() const;
virtual String get_option_label(int p_index) const { return p_index ? TTR("Stop HTTP Server") : TTR("Run in Browser"); }
virtual String get_option_tooltip(int p_index) const { return p_index ? TTR("Stop HTTP Server") : TTR("Run exported HTML in the system's default browser."); }
virtual Ref<ImageTexture> get_option_icon(int p_index) const;
virtual Error run(const Ref<EditorExportPreset> &p_preset, int p_option, int p_debug_flags);
virtual Ref<Texture> get_run_icon() const;
virtual void get_platform_features(List<String> *r_features) {
r_features->push_back("web");
r_features->push_back(get_os_name());
}
virtual void resolve_platform_feature_priorities(const Ref<EditorExportPreset> &p_preset, Set<String> &p_features) {
}
EditorExportPlatformJavaScript();
~EditorExportPlatformJavaScript();
};
Error EditorExportPlatformJavaScript::_extract_template(const String &p_template, const String &p_dir, const String &p_name, bool pwa) {
FileAccess *src_f = nullptr;
zlib_filefunc_def io = zipio_create_io_from_file(&src_f);
unzFile pkg = unzOpen2(p_template.utf8().get_data(), &io);
if (!pkg) {
EditorNode::get_singleton()->show_warning(TTR("Could not open template for export:") + "\n" + p_template);
return ERR_FILE_NOT_FOUND;
}
if (unzGoToFirstFile(pkg) != UNZ_OK) {
EditorNode::get_singleton()->show_warning(TTR("Invalid export template:") + "\n" + p_template);
unzClose(pkg);
return ERR_FILE_CORRUPT;
}
do {
//get filename
unz_file_info info;
char fname[16384];
unzGetCurrentFileInfo(pkg, &info, fname, 16384, nullptr, 0, nullptr, 0);
String file = String::utf8(fname);
// Skip service worker and offline page if not exporting pwa.
if (!pwa && (file == "pandemonium.service.worker.js" || file == "pandemonium.offline.html")) {
continue;
}
Vector<uint8_t> data;
data.resize(info.uncompressed_size);
//read
unzOpenCurrentFile(pkg);
unzReadCurrentFile(pkg, data.ptrw(), data.size());
unzCloseCurrentFile(pkg);
//write
String dst = p_dir.plus_file(file.replace("pandemonium", p_name));
FileAccess *f = FileAccess::open(dst, FileAccess::WRITE);
if (!f) {
EditorNode::get_singleton()->show_warning(TTR("Could not write file:") + "\n" + dst);
unzClose(pkg);
return ERR_FILE_CANT_WRITE;
}
f->store_buffer(data.ptr(), data.size());
memdelete(f);
} while (unzGoToNextFile(pkg) == UNZ_OK);
unzClose(pkg);
return OK;
}
Error EditorExportPlatformJavaScript::_write_or_error(const uint8_t *p_content, int p_size, String p_path) {
FileAccess *f = FileAccess::open(p_path, FileAccess::WRITE);
if (!f) {
EditorNode::get_singleton()->show_warning(TTR("Could not write file:") + "\n" + p_path);
return ERR_FILE_CANT_WRITE;
}
f->store_buffer(p_content, p_size);
memdelete(f);
return OK;
}
void EditorExportPlatformJavaScript::_replace_strings(Map<String, String> p_replaces, Vector<uint8_t> &r_template) {
String str_template = String::utf8(reinterpret_cast<const char *>(r_template.ptr()), r_template.size());
String out;
Vector<String> lines = str_template.split("\n");
for (int i = 0; i < lines.size(); i++) {
String current_line = lines[i];
for (Map<String, String>::Element *E = p_replaces.front(); E; E = E->next()) {
current_line = current_line.replace(E->key(), E->get());
}
out += current_line + "\n";
}
CharString cs = out.utf8();
r_template.resize(cs.length());
for (int i = 0; i < cs.length(); i++) {
r_template.write[i] = cs[i];
}
}
void EditorExportPlatformJavaScript::_fix_html(Vector<uint8_t> &p_html, const Ref<EditorExportPreset> &p_preset, const String &p_name, bool p_debug, int p_flags, const Vector<SharedObject> p_shared_objects, const Dictionary &p_file_sizes) {
// Engine.js config
Dictionary config;
Array libs;
for (int i = 0; i < p_shared_objects.size(); i++) {
libs.push_back(p_shared_objects[i].path.get_file());
}
Vector<String> flags;
gen_export_flags(flags, p_flags & (~DEBUG_FLAG_REMOTE_DEBUG) & (~DEBUG_FLAG_DUMB_CLIENT));
Array args;
for (int i = 0; i < flags.size(); i++) {
args.push_back(flags[i]);
}
config["canvasResizePolicy"] = p_preset->get("html/canvas_resize_policy");
config["experimentalVK"] = p_preset->get("html/experimental_virtual_keyboard");
config["focusCanvas"] = p_preset->get("html/focus_canvas_on_start");
config["gdnativeLibs"] = libs;
config["executable"] = p_name;
config["args"] = args;
config["fileSizes"] = p_file_sizes;
String head_include;
if (p_preset->get("html/export_icon")) {
head_include += "<link id='-gd-engine-icon' rel='icon' type='image/png' href='" + p_name + ".icon.png' />\n";
head_include += "<link rel='apple-touch-icon' href='" + p_name + ".apple-touch-icon.png'/>\n";
}
if (p_preset->get("progressive_web_app/enabled")) {
head_include += "<link rel='manifest' href='" + p_name + ".manifest.json'>\n";
config["serviceWorker"] = p_name + ".service.worker.js";
}
// Replaces HTML string
const String str_config = JSON::print(config);
const String custom_head_include = p_preset->get("html/head_include");
Map<String, String> replaces;
replaces["$PANDEMONIUM_URL"] = p_name + ".js";
replaces["$PANDEMONIUM_PROJECT_NAME"] = ProjectSettings::get_singleton()->get_setting("application/config/name");
replaces["$PANDEMONIUM_HEAD_INCLUDE"] = head_include + custom_head_include;
replaces["$PANDEMONIUM_CONFIG"] = str_config;
_replace_strings(replaces, p_html);
}
Error EditorExportPlatformJavaScript::_add_manifest_icon(const String &p_path, const String &p_icon, int p_size, Array &r_arr) {
const String name = p_path.get_file().get_basename();
const String icon_name = vformat("%s.%dx%d.png", name, p_size, p_size);
const String icon_dest = p_path.get_base_dir().plus_file(icon_name);
Ref<Image> icon;
if (!p_icon.empty()) {
icon.instance();
const Error err = ImageLoader::load_image(p_icon, icon);
if (err != OK) {
EditorNode::get_singleton()->show_warning(TTR("Could not read file:") + "\n" + p_icon);
return err;
}
if (icon->get_width() != p_size || icon->get_height() != p_size) {
icon->resize(p_size, p_size);
}
} else {
icon = _get_project_icon();
icon->resize(p_size, p_size);
}
const Error err = icon->save_png(icon_dest);
if (err != OK) {
EditorNode::get_singleton()->show_warning(TTR("Could not write file:") + "\n" + icon_dest);
return err;
}
Dictionary icon_dict;
icon_dict["sizes"] = vformat("%dx%d", p_size, p_size);
icon_dict["type"] = "image/png";
icon_dict["src"] = icon_name;
r_arr.push_back(icon_dict);
return err;
}
Error EditorExportPlatformJavaScript::_build_pwa(const Ref<EditorExportPreset> &p_preset, const String p_path, const Vector<SharedObject> &p_shared_objects) {
String proj_name = ProjectSettings::get_singleton()->get_setting("application/config/name");
if (proj_name.empty()) {
proj_name = "Pandemonium Game";
}
// Service worker
const String dir = p_path.get_base_dir();
const String name = p_path.get_file().get_basename();
const ExportMode mode = (ExportMode)(int)p_preset->get("variant/export_type");
Map<String, String> replaces;
replaces["@PANDEMONIUM_VERSION@"] = String::num_int64(OS::get_singleton()->get_unix_time()) + "|" + String::num_int64(OS::get_singleton()->get_ticks_usec());
replaces["@PANDEMONIUM_NAME@"] = proj_name.substr(0, 16);
replaces["@PANDEMONIUM_OFFLINE_PAGE@"] = name + ".offline.html";
// Files cached during worker install.
Array cache_files;
cache_files.push_back(name + ".html");
cache_files.push_back(name + ".js");
cache_files.push_back(name + ".offline.html");
if (p_preset->get("html/export_icon")) {
cache_files.push_back(name + ".icon.png");
cache_files.push_back(name + ".apple-touch-icon.png");
}
if (mode == EXPORT_MODE_THREADS) {
cache_files.push_back(name + ".worker.js");
cache_files.push_back(name + ".audio.worklet.js");
}
replaces["@PANDEMONIUM_CACHE@"] = JSON::print(cache_files);
// Heavy files that are cached on demand.
Array opt_cache_files;
opt_cache_files.push_back(name + ".wasm");
opt_cache_files.push_back(name + ".pck");
if (mode == EXPORT_MODE_GDNATIVE) {
opt_cache_files.push_back(name + ".side.wasm");
for (int i = 0; i < p_shared_objects.size(); i++) {
opt_cache_files.push_back(p_shared_objects[i].path.get_file());
}
}
replaces["@PANDEMONIUM_OPT_CACHE@"] = JSON::print(opt_cache_files);
const String sw_path = dir.plus_file(name + ".service.worker.js");
Vector<uint8_t> sw;
{
FileAccess *f = FileAccess::open(sw_path, FileAccess::READ);
if (!f) {
EditorNode::get_singleton()->show_warning(TTR("Could not read file:") + "\n" + sw_path);
return ERR_FILE_CANT_READ;
}
sw.resize(f->get_len());
f->get_buffer(sw.ptrw(), sw.size());
memdelete(f);
f = nullptr;
}
_replace_strings(replaces, sw);
Error err = _write_or_error(sw.ptr(), sw.size(), dir.plus_file(name + ".service.worker.js"));
if (err != OK) {
return err;
}
// Custom offline page
const String offline_page = p_preset->get("progressive_web_app/offline_page");
if (!offline_page.empty()) {
DirAccess *da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
const String offline_dest = dir.plus_file(name + ".offline.html");
err = da->copy(ProjectSettings::get_singleton()->globalize_path(offline_page), offline_dest);
if (err != OK) {
EditorNode::get_singleton()->show_warning(TTR("Could not read file:") + "\n" + offline_dest);
return err;
}
}
// Manifest
const char *modes[4] = { "fullscreen", "standalone", "minimal-ui", "browser" };
const char *orientations[3] = { "any", "landscape", "portrait" };
const int display = CLAMP(int(p_preset->get("progressive_web_app/display")), 0, 4);
const int orientation = CLAMP(int(p_preset->get("progressive_web_app/orientation")), 0, 3);
Dictionary manifest;
manifest["name"] = proj_name;
manifest["start_url"] = "./" + name + ".html";
manifest["display"] = String::utf8(modes[display]);
manifest["orientation"] = String::utf8(orientations[orientation]);
manifest["background_color"] = "#" + p_preset->get("progressive_web_app/background_color").operator Color().to_html(false);
Array icons_arr;
const String icon144_path = p_preset->get("progressive_web_app/icon_144x144");
err = _add_manifest_icon(p_path, icon144_path, 144, icons_arr);
if (err != OK) {
return err;
}
const String icon180_path = p_preset->get("progressive_web_app/icon_180x180");
err = _add_manifest_icon(p_path, icon180_path, 180, icons_arr);
if (err != OK) {
return err;
}
const String icon512_path = p_preset->get("progressive_web_app/icon_512x512");
err = _add_manifest_icon(p_path, icon512_path, 512, icons_arr);
if (err != OK) {
return err;
}
manifest["icons"] = icons_arr;
CharString cs = JSON::print(manifest).utf8();
err = _write_or_error((const uint8_t *)cs.get_data(), cs.length(), dir.plus_file(name + ".manifest.json"));
if (err != OK) {
return err;
}
return OK;
}
void EditorExportPlatformJavaScript::get_preset_features(const Ref<EditorExportPreset> &p_preset, List<String> *r_features) {
if (p_preset->get("vram_texture_compression/for_desktop")) {
r_features->push_back("s3tc");
}
if (p_preset->get("vram_texture_compression/for_mobile")) {
String driver = ProjectSettings::get_singleton()->get("rendering/quality/driver/driver_name");
if (driver == "GLES2") {
r_features->push_back("etc");
} else if (driver == "GLES3") {
r_features->push_back("etc2");
if (ProjectSettings::get_singleton()->get("rendering/quality/driver/fallback_to_gles2")) {
r_features->push_back("etc");
}
}
}
ExportMode mode = (ExportMode)(int)p_preset->get("variant/export_type");
if (mode == EXPORT_MODE_THREADS) {
r_features->push_back("threads");
} else if (mode == EXPORT_MODE_GDNATIVE) {
r_features->push_back("wasm32");
}
}
void EditorExportPlatformJavaScript::get_export_options(List<ExportOption> *r_options) {
r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "custom_template/debug", PROPERTY_HINT_GLOBAL_FILE, "*.zip"), ""));
r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "custom_template/release", PROPERTY_HINT_GLOBAL_FILE, "*.zip"), ""));
r_options->push_back(ExportOption(PropertyInfo(Variant::INT, "variant/export_type", PROPERTY_HINT_ENUM, "Regular,Threads,GDNative"), 0)); // Export type.
r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "vram_texture_compression/for_desktop"), true)); // S3TC
r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "vram_texture_compression/for_mobile"), false)); // ETC or ETC2, depending on renderer
r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "html/export_icon"), true));
r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "html/custom_html_shell", PROPERTY_HINT_FILE, "*.html"), ""));
r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "html/head_include", PROPERTY_HINT_MULTILINE_TEXT), ""));
r_options->push_back(ExportOption(PropertyInfo(Variant::INT, "html/canvas_resize_policy", PROPERTY_HINT_ENUM, "None,Project,Adaptive"), 2));
r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "html/focus_canvas_on_start"), true));
r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "html/experimental_virtual_keyboard"), false));
r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "progressive_web_app/enabled"), false));
r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "progressive_web_app/offline_page", PROPERTY_HINT_FILE, "*.html"), ""));
r_options->push_back(ExportOption(PropertyInfo(Variant::INT, "progressive_web_app/display", PROPERTY_HINT_ENUM, "Fullscreen,Standalone,Minimal Ui,Browser"), 1));
r_options->push_back(ExportOption(PropertyInfo(Variant::INT, "progressive_web_app/orientation", PROPERTY_HINT_ENUM, "Any,Landscape,Portrait"), 0));
r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "progressive_web_app/icon_144x144", PROPERTY_HINT_FILE, "*.png,*.webp,*.svg"), ""));
r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "progressive_web_app/icon_180x180", PROPERTY_HINT_FILE, "*.png,*.webp,*.svg"), ""));
r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "progressive_web_app/icon_512x512", PROPERTY_HINT_FILE, "*.png,*.webp,*.svg"), ""));
r_options->push_back(ExportOption(PropertyInfo(Variant::COLOR, "progressive_web_app/background_color", PROPERTY_HINT_COLOR_NO_ALPHA), Color()));
}
String EditorExportPlatformJavaScript::get_name() const {
return "HTML5";
}
String EditorExportPlatformJavaScript::get_os_name() const {
return "HTML5";
}
Ref<Texture> EditorExportPlatformJavaScript::get_logo() const {
return logo;
}
bool EditorExportPlatformJavaScript::can_export(const Ref<EditorExportPreset> &p_preset, String &r_error, bool &r_missing_templates) const {
String err;
bool valid = false;
ExportMode mode = (ExportMode)(int)p_preset->get("variant/export_type");
// Look for export templates (first official, and if defined custom templates).
bool dvalid = exists_export_template(_get_template_name(mode, true), &err);
bool rvalid = exists_export_template(_get_template_name(mode, false), &err);
if (p_preset->get("custom_template/debug") != "") {
dvalid = FileAccess::exists(p_preset->get("custom_template/debug"));
if (!dvalid) {
err += TTR("Custom debug template not found.") + "\n";
}
}
if (p_preset->get("custom_template/release") != "") {
rvalid = FileAccess::exists(p_preset->get("custom_template/release"));
if (!rvalid) {
err += TTR("Custom release template not found.") + "\n";
}
}
valid = dvalid || rvalid;
r_missing_templates = !valid;
// Validate the rest of the configuration.
if (p_preset->get("vram_texture_compression/for_mobile")) {
String etc_error = test_etc2();
if (etc_error != String()) {
valid = false;
err += etc_error;
}
}
if (!err.empty()) {
r_error = err;
}
return valid;
}
List<String> EditorExportPlatformJavaScript::get_binary_extensions(const Ref<EditorExportPreset> &p_preset) const {
List<String> list;
list.push_back("html");
return list;
}
Error EditorExportPlatformJavaScript::export_project(const Ref<EditorExportPreset> &p_preset, bool p_debug, const String &p_path, int p_flags) {
ExportNotifier notifier(*this, p_preset, p_debug, p_path, p_flags);
const String custom_debug = p_preset->get("custom_template/debug");
const String custom_release = p_preset->get("custom_template/release");
const String custom_html = p_preset->get("html/custom_html_shell");
const bool export_icon = p_preset->get("html/export_icon");
const bool pwa = p_preset->get("progressive_web_app/enabled");
const String base_dir = p_path.get_base_dir();
const String base_path = p_path.get_basename();
const String base_name = p_path.get_file().get_basename();
// Find the correct template
String template_path = p_debug ? custom_debug : custom_release;
template_path = template_path.strip_edges();
if (template_path == String()) {
ExportMode mode = (ExportMode)(int)p_preset->get("variant/export_type");
template_path = find_export_template(_get_template_name(mode, p_debug));
}
if (!DirAccess::exists(base_dir)) {
return ERR_FILE_BAD_PATH;
}
if (template_path != String() && !FileAccess::exists(template_path)) {
EditorNode::get_singleton()->show_warning(TTR("Template file not found:") + "\n" + template_path);
return ERR_FILE_NOT_FOUND;
}
// Export pck and shared objects
Vector<SharedObject> shared_objects;
String pck_path = base_path + ".pck";
Error error = save_pack(p_preset, pck_path, &shared_objects);
if (error != OK) {
EditorNode::get_singleton()->show_warning(TTR("Could not write file:") + "\n" + pck_path);
return error;
}
DirAccess *da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
for (int i = 0; i < shared_objects.size(); i++) {
String dst = base_dir.plus_file(shared_objects[i].path.get_file());
error = da->copy(shared_objects[i].path, dst);
if (error != OK) {
EditorNode::get_singleton()->show_warning(TTR("Could not write file:") + "\n" + shared_objects[i].path.get_file());
memdelete(da);
return error;
}
}
memdelete(da);
da = nullptr;
// Extract templates.
error = _extract_template(template_path, base_dir, base_name, pwa);
if (error) {
return error;
}
// Parse generated file sizes (pck and wasm, to help show a meaningful loading bar).
Dictionary file_sizes;
FileAccess *f = nullptr;
f = FileAccess::open(pck_path, FileAccess::READ);
if (f) {
file_sizes[pck_path.get_file()] = (uint64_t)f->get_len();
memdelete(f);
f = nullptr;
}
f = FileAccess::open(base_path + ".wasm", FileAccess::READ);
if (f) {
file_sizes[base_name + ".wasm"] = (uint64_t)f->get_len();
memdelete(f);
f = nullptr;
}
// Read the HTML shell file (custom or from template).
const String html_path = custom_html.empty() ? base_path + ".html" : custom_html;
Vector<uint8_t> html;
f = FileAccess::open(html_path, FileAccess::READ);
if (!f) {
EditorNode::get_singleton()->show_warning(TTR("Could not read HTML shell:") + "\n" + html_path);
return ERR_FILE_CANT_READ;
}
html.resize(f->get_len());
f->get_buffer(html.ptrw(), html.size());
memdelete(f);
f = nullptr;
// Generate HTML file with replaced strings.
_fix_html(html, p_preset, base_name, p_debug, p_flags, shared_objects, file_sizes);
Error err = _write_or_error(html.ptr(), html.size(), p_path);
if (err != OK) {
return err;
}
html.resize(0);
// Export splash (why?)
Ref<Image> splash = _get_project_splash();
const String splash_png_path = base_path + ".png";
if (splash->save_png(splash_png_path) != OK) {
EditorNode::get_singleton()->show_warning(TTR("Could not write file:") + "\n" + splash_png_path);
return ERR_FILE_CANT_WRITE;
}
// Save a favicon that can be accessed without waiting for the project to finish loading.
// This way, the favicon can be displayed immediately when loading the page.
if (export_icon) {
Ref<Image> favicon = _get_project_icon();
const String favicon_png_path = base_path + ".icon.png";
if (favicon->save_png(favicon_png_path) != OK) {
EditorNode::get_singleton()->show_warning(TTR("Could not write file:") + "\n" + favicon_png_path);
return ERR_FILE_CANT_WRITE;
}
favicon->resize(180, 180);
const String apple_icon_png_path = base_path + ".apple-touch-icon.png";
if (favicon->save_png(apple_icon_png_path) != OK) {
EditorNode::get_singleton()->show_warning(TTR("Could not write file:") + "\n" + apple_icon_png_path);
return ERR_FILE_CANT_WRITE;
}
}
// Generate the PWA worker and manifest
if (pwa) {
err = _build_pwa(p_preset, p_path, shared_objects);
if (err != OK) {
return err;
}
}
return OK;
}
bool EditorExportPlatformJavaScript::poll_export() {
Ref<EditorExportPreset> preset;
for (int i = 0; i < EditorExport::get_singleton()->get_export_preset_count(); i++) {
Ref<EditorExportPreset> ep = EditorExport::get_singleton()->get_export_preset(i);
if (ep->is_runnable() && ep->get_platform() == this) {
preset = ep;
break;
}
}
int prev = menu_options;
menu_options = preset.is_valid();
if (server->is_listening()) {
if (menu_options == 0) {
MutexLock lock(server_lock);
server->stop();
} else {
menu_options += 1;
}
}
return menu_options != prev;
}
Ref<ImageTexture> EditorExportPlatformJavaScript::get_option_icon(int p_index) const {
return p_index == 1 ? stop_icon : EditorExportPlatform::get_option_icon(p_index);
}
int EditorExportPlatformJavaScript::get_options_count() const {
return menu_options;
}
Error EditorExportPlatformJavaScript::run(const Ref<EditorExportPreset> &p_preset, int p_option, int p_debug_flags) {
if (p_option == 1) {
MutexLock lock(server_lock);
server->stop();
return OK;
}
const String dest = EditorSettings::get_singleton()->get_cache_dir().plus_file("web");
DirAccessRef da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
if (!da->dir_exists(dest)) {
Error err = da->make_dir_recursive(dest);
if (err != OK) {
EditorNode::get_singleton()->show_warning(TTR("Could not create HTTP server directory:") + "\n" + dest);
return err;
}
}
const String basepath = dest.plus_file("tmp_js_export");
Error err = export_project(p_preset, true, basepath + ".html", p_debug_flags);
if (err != OK) {
// Export generates several files, clean them up on failure.
DirAccess::remove_file_or_error(basepath + ".html");
DirAccess::remove_file_or_error(basepath + ".offline.html");
DirAccess::remove_file_or_error(basepath + ".js");
DirAccess::remove_file_or_error(basepath + ".worker.js");
DirAccess::remove_file_or_error(basepath + ".audio.worklet.js");
DirAccess::remove_file_or_error(basepath + ".service.worker.js");
DirAccess::remove_file_or_error(basepath + ".pck");
DirAccess::remove_file_or_error(basepath + ".png");
DirAccess::remove_file_or_error(basepath + ".side.wasm");
DirAccess::remove_file_or_error(basepath + ".wasm");
DirAccess::remove_file_or_error(basepath + ".icon.png");
DirAccess::remove_file_or_error(basepath + ".apple-touch-icon.png");
return err;
}
const uint16_t bind_port = EDITOR_GET("export/web/http_port");
// Resolve host if needed.
const String bind_host = EDITOR_GET("export/web/http_host");
IP_Address bind_ip;
if (bind_host.is_valid_ip_address()) {
bind_ip = bind_host;
} else {
bind_ip = IP::get_singleton()->resolve_hostname(bind_host);
}
ERR_FAIL_COND_V_MSG(!bind_ip.is_valid(), ERR_INVALID_PARAMETER, "Invalid editor setting 'export/web/http_host': '" + bind_host + "'. Try using '127.0.0.1'.");
const bool use_ssl = EDITOR_GET("export/web/use_ssl");
const String ssl_key = EDITOR_GET("export/web/ssl_key");
const String ssl_cert = EDITOR_GET("export/web/ssl_certificate");
// Restart server.
{
MutexLock lock(server_lock);
server->stop();
err = server->listen(bind_port, bind_ip, use_ssl, ssl_key, ssl_cert);
}
if (err != OK) {
EditorNode::get_singleton()->show_warning(TTR("Error starting HTTP server:") + "\n" + itos(err));
return err;
}
OS::get_singleton()->shell_open(String((use_ssl ? "https://" : "http://") + bind_host + ":" + itos(bind_port) + "/tmp_js_export.html"));
// FIXME: Find out how to clean up export files after running the successfully
// exported game. Might not be trivial.
return OK;
}
Ref<Texture> EditorExportPlatformJavaScript::get_run_icon() const {
return run_icon;
}
void EditorExportPlatformJavaScript::_server_thread_poll(void *data) {
EditorExportPlatformJavaScript *ej = (EditorExportPlatformJavaScript *)data;
while (!ej->server_quit) {
OS::get_singleton()->delay_usec(1000);
{
MutexLock lock(ej->server_lock);
ej->server->poll();
}
}
}
EditorExportPlatformJavaScript::EditorExportPlatformJavaScript() {
server.instance();
server_thread.start(_server_thread_poll, this);
Ref<Image> img = memnew(Image(_javascript_logo));
logo.instance();
logo->create_from_image(img);
img = Ref<Image>(memnew(Image(_javascript_run_icon)));
run_icon.instance();
run_icon->create_from_image(img);
Ref<Theme> theme = EditorNode::get_singleton()->get_editor_theme();
if (theme.is_valid()) {
stop_icon = theme->get_icon("Stop", "EditorIcons");
} else {
stop_icon.instance();
}
}
EditorExportPlatformJavaScript::~EditorExportPlatformJavaScript() {
server->stop();
server_quit = true;
server_thread.wait_to_finish();
}
void register_javascript_exporter() {
EDITOR_DEF("export/web/http_host", "localhost");
EDITOR_DEF("export/web/http_port", 8060);
EDITOR_DEF("export/web/use_ssl", false);
EDITOR_DEF("export/web/ssl_key", "");
EDITOR_DEF("export/web/ssl_certificate", "");
EditorSettings::get_singleton()->add_property_hint(PropertyInfo(Variant::INT, "export/web/http_port", PROPERTY_HINT_RANGE, "1,65535,1"));
EditorSettings::get_singleton()->add_property_hint(PropertyInfo(Variant::STRING, "export/web/ssl_key", PROPERTY_HINT_GLOBAL_FILE, "*.key"));
EditorSettings::get_singleton()->add_property_hint(PropertyInfo(Variant::STRING, "export/web/ssl_certificate", PROPERTY_HINT_GLOBAL_FILE, "*.crt,*.pem"));
Ref<EditorExportPlatformJavaScript> platform;
platform.instance();
EditorExport::get_singleton()->add_export_platform(platform);
}
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