/*************************************************************************/ /* export.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2020 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 "core/io/json.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" #define EXPORT_TEMPLATE_WEBASSEMBLY_RELEASE "webassembly_release.zip" #define EXPORT_TEMPLATE_WEBASSEMBLY_DEBUG "webassembly_debug.zip" class EditorHTTPServer : public Reference { private: Ref server; Ref connection; uint64_t time; uint8_t req_buf[4096]; int req_pos; void _clear_client() { connection = Ref(); memset(req_buf, 0, sizeof(req_buf)); time = 0; req_pos = 0; } public: EditorHTTPServer() { server.instance(); stop(); } void stop() { server->stop(); _clear_client(); } Error listen(int p_port, IP_Address p_address) { return server->listen(p_port, p_address); } bool is_listening() const { return server->is_listening(); } void _send_response() { Vector 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 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."); String filepath = EditorSettings::get_singleton()->get_cache_dir().plus_file("tmp_js_export"); const String basereq = "/tmp_js_export"; String ctype = ""; if (req[1] == basereq + ".html") { filepath += ".html"; ctype = "text/html"; } else if (req[1] == basereq + ".js") { filepath += ".js"; ctype = "application/javascript"; } else if (req[1] == basereq + ".worker.js") { filepath += ".worker.js"; ctype = "application/javascript"; } else if (req[1] == basereq + ".pck") { filepath += ".pck"; ctype = "application/octet-stream"; } else if (req[1] == basereq + ".png" || req[1] == "/favicon.png") { // Also allow serving the generated favicon for a smoother loading experience. if (req[1] == "/favicon.png") { filepath = EditorSettings::get_singleton()->get_cache_dir().plus_file("favicon.png"); } else { filepath += ".png"; } ctype = "image/png"; } else if (req[1] == basereq + ".wasm") { filepath += ".wasm"; ctype = "application/wasm"; } else { String s = "HTTP/1.1 404 Not Found\r\n"; s += "Connection: Close\r\n"; s += "\r\n"; CharString cs = s.utf8(); connection->put_data((const uint8_t *)cs.get_data(), cs.size() - 1); return; } 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 += "\r\n"; CharString cs = s.utf8(); Error err = connection->put_data((const uint8_t *)cs.get_data(), cs.size() - 1); if (err != OK) { memdelete(f); ERR_FAIL(); } while (true) { uint8_t bytes[4096]; int read = f->get_buffer(bytes, 4096); if (read < 1) { break; } err = connection->put_data(bytes, read); if (err != OK) { memdelete(f); ERR_FAIL(); } } memdelete(f); } void poll() { if (!server->is_listening()) { return; } if (connection.is_null()) { if (!server->is_connection_available()) { return; } connection = server->take_connection(); time = OS::get_singleton()->get_ticks_usec(); } if (OS::get_singleton()->get_ticks_usec() - time > 1000000) { _clear_client(); return; } if (connection->get_status() != StreamPeerTCP::STATUS_CONNECTED) { 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 = connection->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 logo; Ref run_icon; Ref stop_icon; int menu_options; void _fix_html(Vector &p_html, const Ref &p_preset, const String &p_name, bool p_debug, int p_flags); private: Ref server; bool server_quit; Mutex server_lock; Thread *server_thread; static void _server_thread_poll(void *data); public: virtual void get_preset_features(const Ref &p_preset, List *r_features) override; virtual void get_export_options(List *r_options) override; virtual String get_name() const override; virtual String get_os_name() const override; virtual Ref get_logo() const override; virtual bool can_export(const Ref &p_preset, String &r_error, bool &r_missing_templates) const override; virtual List get_binary_extensions(const Ref &p_preset) const override; virtual Error export_project(const Ref &p_preset, bool p_debug, const String &p_path, int p_flags = 0) override; virtual bool poll_export() override; virtual int get_options_count() const override; virtual String get_option_label(int p_index) const override { return p_index ? TTR("Stop HTTP Server") : TTR("Run in Browser"); } virtual String get_option_tooltip(int p_index) const override { return p_index ? TTR("Stop HTTP Server") : TTR("Run exported HTML in the system's default browser."); } virtual Ref get_option_icon(int p_index) const override; virtual Error run(const Ref &p_preset, int p_option, int p_debug_flags) override; virtual Ref get_run_icon() const override; virtual void get_platform_features(List *r_features) override { r_features->push_back("web"); r_features->push_back(get_os_name()); } virtual void resolve_platform_feature_priorities(const Ref &p_preset, Set &p_features) override { } String get_debug_protocol() const override { return "ws://"; } EditorExportPlatformJavaScript(); ~EditorExportPlatformJavaScript(); }; void EditorExportPlatformJavaScript::_fix_html(Vector &p_html, const Ref &p_preset, const String &p_name, bool p_debug, int p_flags) { String str_template = String::utf8(reinterpret_cast(p_html.ptr()), p_html.size()); String str_export; Vector lines = str_template.split("\n"); Vector flags; String flags_json; gen_export_flags(flags, p_flags); flags_json = JSON::print(flags); for (int i = 0; i < lines.size(); i++) { String current_line = lines[i]; current_line = current_line.replace("$GODOT_BASENAME", p_name); current_line = current_line.replace("$GODOT_PROJECT_NAME", ProjectSettings::get_singleton()->get_setting("application/config/name")); current_line = current_line.replace("$GODOT_HEAD_INCLUDE", p_preset->get("html/head_include")); current_line = current_line.replace("$GODOT_DEBUG_ENABLED", p_debug ? "true" : "false"); current_line = current_line.replace("$GODOT_ARGS", flags_json); str_export += current_line + "\n"; } CharString cs = str_export.utf8(); p_html.resize(cs.length()); for (int i = 0; i < cs.length(); i++) { p_html.write[i] = cs[i]; } } void EditorExportPlatformJavaScript::get_preset_features(const Ref &p_preset, List *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 == "Vulkan") { // FIXME: Review if this is correct. r_features->push_back("etc2"); } } } void EditorExportPlatformJavaScript::get_export_options(List *r_options) { 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::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::STRING, "custom_template/release", PROPERTY_HINT_GLOBAL_FILE, "*.zip"), "")); r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "custom_template/debug", PROPERTY_HINT_GLOBAL_FILE, "*.zip"), "")); } String EditorExportPlatformJavaScript::get_name() const { return "HTML5"; } String EditorExportPlatformJavaScript::get_os_name() const { return "HTML5"; } Ref EditorExportPlatformJavaScript::get_logo() const { return logo; } bool EditorExportPlatformJavaScript::can_export(const Ref &p_preset, String &r_error, bool &r_missing_templates) const { String err; bool valid = false; // Look for export templates (first official, and if defined custom templates). bool dvalid = exists_export_template(EXPORT_TEMPLATE_WEBASSEMBLY_DEBUG, &err); bool rvalid = exists_export_template(EXPORT_TEMPLATE_WEBASSEMBLY_RELEASE, &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 EditorExportPlatformJavaScript::get_binary_extensions(const Ref &p_preset) const { List list; list.push_back("html"); return list; } Error EditorExportPlatformJavaScript::export_project(const Ref &p_preset, bool p_debug, const String &p_path, int p_flags) { ExportNotifier notifier(*this, p_preset, p_debug, p_path, p_flags); String custom_debug = p_preset->get("custom_template/debug"); String custom_release = p_preset->get("custom_template/release"); String custom_html = p_preset->get("html/custom_html_shell"); String template_path = p_debug ? custom_debug : custom_release; template_path = template_path.strip_edges(); if (template_path == String()) { if (p_debug) { template_path = find_export_template(EXPORT_TEMPLATE_WEBASSEMBLY_DEBUG); } else { template_path = find_export_template(EXPORT_TEMPLATE_WEBASSEMBLY_RELEASE); } } if (!DirAccess::exists(p_path.get_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; } String pck_path = p_path.get_basename() + ".pck"; Error error = save_pack(p_preset, pck_path); if (error != OK) { EditorNode::get_singleton()->show_warning(TTR("Could not write file:") + "\n" + pck_path); return error; } FileAccess *src_f = nullptr; zlib_filefunc_def io = zipio_create_io_from_file(&src_f); unzFile pkg = unzOpen2(template_path.utf8().get_data(), &io); if (!pkg) { EditorNode::get_singleton()->show_warning(TTR("Could not open template for export:") + "\n" + template_path); return ERR_FILE_NOT_FOUND; } if (unzGoToFirstFile(pkg) != UNZ_OK) { EditorNode::get_singleton()->show_warning(TTR("Invalid export template:") + "\n" + template_path); 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 = fname; Vector data; data.resize(info.uncompressed_size); //read unzOpenCurrentFile(pkg); unzReadCurrentFile(pkg, data.ptrw(), data.size()); unzCloseCurrentFile(pkg); //write if (file == "godot.html") { if (!custom_html.empty()) { continue; } _fix_html(data, p_preset, p_path.get_file().get_basename(), p_debug, p_flags); file = p_path.get_file(); } else if (file == "godot.js") { file = p_path.get_file().get_basename() + ".js"; } else if (file == "godot.worker.js") { file = p_path.get_file().get_basename() + ".worker.js"; } else if (file == "godot.wasm") { file = p_path.get_file().get_basename() + ".wasm"; } String dst = p_path.get_base_dir().plus_file(file); 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); if (!custom_html.empty()) { FileAccess *f = FileAccess::open(custom_html, FileAccess::READ); if (!f) { EditorNode::get_singleton()->show_warning(TTR("Could not read custom HTML shell:") + "\n" + custom_html); return ERR_FILE_CANT_READ; } Vector buf; buf.resize(f->get_len()); f->get_buffer(buf.ptrw(), buf.size()); memdelete(f); _fix_html(buf, p_preset, p_path.get_file().get_basename(), p_debug, p_flags); 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(buf.ptr(), buf.size()); memdelete(f); } Ref splash; const String splash_path = String(GLOBAL_GET("application/boot_splash/image")).strip_edges(); if (!splash_path.empty()) { splash.instance(); const Error err = splash->load(splash_path); if (err) { EditorNode::get_singleton()->show_warning(TTR("Could not read boot splash image file:") + "\n" + splash_path + "\n" + TTR("Using default boot splash image.")); splash.unref(); } } if (splash.is_null()) { splash = Ref(memnew(Image(boot_splash_png))); } const String splash_png_path = p_path.get_base_dir().plus_file(p_path.get_file().get_basename() + ".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. Ref favicon; const String favicon_path = String(GLOBAL_GET("application/config/icon")).strip_edges(); if (!favicon_path.empty()) { favicon.instance(); const Error err = favicon->load(favicon_path); if (err) { favicon.unref(); } } if (favicon.is_valid()) { const String favicon_png_path = p_path.get_base_dir().plus_file("favicon.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; } } return OK; } bool EditorExportPlatformJavaScript::poll_export() { Ref preset; for (int i = 0; i < EditorExport::get_singleton()->get_export_preset_count(); i++) { Ref 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 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 &p_preset, int p_option, int p_debug_flags) { if (p_option == 1) { MutexLock lock(server_lock); server->stop(); return OK; } const String basepath = EditorSettings::get_singleton()->get_cache_dir().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 + ".js"); DirAccess::remove_file_or_error(basepath + ".worker.js"); DirAccess::remove_file_or_error(basepath + ".pck"); DirAccess::remove_file_or_error(basepath + ".png"); DirAccess::remove_file_or_error(basepath + ".wasm"); DirAccess::remove_file_or_error(EditorSettings::get_singleton()->get_cache_dir().plus_file("favicon.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'."); // Restart server. { MutexLock lock(server_lock); server->stop(); err = server->listen(bind_port, bind_ip); } ERR_FAIL_COND_V_MSG(err != OK, err, "Unable to start HTTP server."); OS::get_singleton()->shell_open(String("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 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_quit = false; server_thread = Thread::create(_server_thread_poll, this); Ref img = memnew(Image(_javascript_logo)); logo.instance(); logo->create_from_image(img); img = Ref(memnew(Image(_javascript_run_icon))); run_icon.instance(); run_icon->create_from_image(img); Ref theme = EditorNode::get_singleton()->get_editor_theme(); if (theme.is_valid()) { stop_icon = theme->get_icon("Stop", "EditorIcons"); } else { stop_icon.instance(); } menu_options = 0; } EditorExportPlatformJavaScript::~EditorExportPlatformJavaScript() { server->stop(); server_quit = true; Thread::wait_to_finish(server_thread); memdelete(server_thread); } void register_javascript_exporter() { EDITOR_DEF("export/web/http_host", "localhost"); EDITOR_DEF("export/web/http_port", 8060); EditorSettings::get_singleton()->add_property_hint(PropertyInfo(Variant::INT, "export/web/http_port", PROPERTY_HINT_RANGE, "1,65535,1")); Ref platform; platform.instance(); EditorExport::get_singleton()->add_export_platform(platform); }