d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
251 lines
8.1 KiB
C++
251 lines
8.1 KiB
C++
/**************************************************************************/
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/* editor_http_server.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef WEB_EDITOR_HTTP_SERVER_H
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#define WEB_EDITOR_HTTP_SERVER_H
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#include "core/io/image_loader.h"
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#include "core/io/stream_peer_tls.h"
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#include "core/io/tcp_server.h"
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#include "core/io/zip_io.h"
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#include "editor/editor_paths.h"
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class EditorHTTPServer : public RefCounted {
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private:
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Ref<TCPServer> server;
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HashMap<String, String> mimes;
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Ref<StreamPeerTCP> tcp;
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Ref<StreamPeerTLS> tls;
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Ref<StreamPeer> peer;
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Ref<CryptoKey> key;
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Ref<X509Certificate> cert;
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bool use_tls = false;
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uint64_t time = 0;
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uint8_t req_buf[4096];
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int req_pos = 0;
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void _clear_client() {
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peer = Ref<StreamPeer>();
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tls = Ref<StreamPeerTLS>();
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tcp = Ref<StreamPeerTCP>();
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memset(req_buf, 0, sizeof(req_buf));
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time = 0;
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req_pos = 0;
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}
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void _set_internal_certs(Ref<Crypto> p_crypto) {
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const String cache_path = EditorPaths::get_singleton()->get_cache_dir();
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const String key_path = cache_path.path_join("html5_server.key");
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const String crt_path = cache_path.path_join("html5_server.crt");
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bool regen = !FileAccess::exists(key_path) || !FileAccess::exists(crt_path);
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if (!regen) {
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key = Ref<CryptoKey>(CryptoKey::create());
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cert = Ref<X509Certificate>(X509Certificate::create());
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if (key->load(key_path) != OK || cert->load(crt_path) != OK) {
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regen = true;
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}
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}
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if (regen) {
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key = p_crypto->generate_rsa(2048);
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key->save(key_path);
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cert = p_crypto->generate_self_signed_certificate(key, "CN=godot-debug.local,O=A Game Dev,C=XXA", "20140101000000", "20340101000000");
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cert->save(crt_path);
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}
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}
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public:
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EditorHTTPServer() {
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mimes["html"] = "text/html";
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mimes["js"] = "application/javascript";
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mimes["json"] = "application/json";
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mimes["pck"] = "application/octet-stream";
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mimes["png"] = "image/png";
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mimes["svg"] = "image/svg";
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mimes["wasm"] = "application/wasm";
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server.instantiate();
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stop();
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}
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void stop() {
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server->stop();
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_clear_client();
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}
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Error listen(int p_port, IPAddress p_address, bool p_use_tls, String p_tls_key, String p_tls_cert) {
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use_tls = p_use_tls;
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if (use_tls) {
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Ref<Crypto> crypto = Crypto::create();
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if (crypto.is_null()) {
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return ERR_UNAVAILABLE;
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}
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if (!p_tls_key.is_empty() && !p_tls_cert.is_empty()) {
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key = Ref<CryptoKey>(CryptoKey::create());
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Error err = key->load(p_tls_key);
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ERR_FAIL_COND_V(err != OK, err);
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cert = Ref<X509Certificate>(X509Certificate::create());
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err = cert->load(p_tls_cert);
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ERR_FAIL_COND_V(err != OK, err);
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} else {
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_set_internal_certs(crypto);
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}
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}
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return server->listen(p_port, p_address);
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}
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bool is_listening() const {
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return server->is_listening();
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}
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void _send_response() {
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Vector<String> psa = String((char *)req_buf).split("\r\n");
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int len = psa.size();
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ERR_FAIL_COND_MSG(len < 4, "Not enough response headers, got: " + itos(len) + ", expected >= 4.");
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Vector<String> req = psa[0].split(" ", false);
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ERR_FAIL_COND_MSG(req.size() < 2, "Invalid protocol or status code.");
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// Wrong protocol
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ERR_FAIL_COND_MSG(req[0] != "GET" || req[2] != "HTTP/1.1", "Invalid method or HTTP version.");
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const int query_index = req[1].find_char('?');
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const String path = (query_index == -1) ? req[1] : req[1].substr(0, query_index);
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const String req_file = path.get_file();
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const String req_ext = path.get_extension();
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const String cache_path = EditorPaths::get_singleton()->get_cache_dir().path_join("web");
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const String filepath = cache_path.path_join(req_file);
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if (!mimes.has(req_ext) || !FileAccess::exists(filepath)) {
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String s = "HTTP/1.1 404 Not Found\r\n";
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s += "Connection: Close\r\n";
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s += "\r\n";
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CharString cs = s.utf8();
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peer->put_data((const uint8_t *)cs.get_data(), cs.size() - 1);
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return;
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}
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const String ctype = mimes[req_ext];
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Ref<FileAccess> f = FileAccess::open(filepath, FileAccess::READ);
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ERR_FAIL_COND(f.is_null());
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String s = "HTTP/1.1 200 OK\r\n";
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s += "Connection: Close\r\n";
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s += "Content-Type: " + ctype + "\r\n";
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s += "Access-Control-Allow-Origin: *\r\n";
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s += "Cross-Origin-Opener-Policy: same-origin\r\n";
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s += "Cross-Origin-Embedder-Policy: require-corp\r\n";
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s += "Cache-Control: no-store, max-age=0\r\n";
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s += "\r\n";
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CharString cs = s.utf8();
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Error err = peer->put_data((const uint8_t *)cs.get_data(), cs.size() - 1);
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if (err != OK) {
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ERR_FAIL();
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}
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while (true) {
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uint8_t bytes[4096];
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uint64_t read = f->get_buffer(bytes, 4096);
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if (read == 0) {
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break;
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}
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err = peer->put_data(bytes, read);
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if (err != OK) {
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ERR_FAIL();
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}
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}
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}
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void poll() {
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if (!server->is_listening()) {
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return;
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}
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if (tcp.is_null()) {
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if (!server->is_connection_available()) {
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return;
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}
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tcp = server->take_connection();
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peer = tcp;
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time = OS::get_singleton()->get_ticks_usec();
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}
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if (OS::get_singleton()->get_ticks_usec() - time > 1000000) {
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_clear_client();
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return;
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}
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if (tcp->get_status() != StreamPeerTCP::STATUS_CONNECTED) {
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return;
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}
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if (use_tls) {
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if (tls.is_null()) {
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tls = Ref<StreamPeerTLS>(StreamPeerTLS::create());
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peer = tls;
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tls->set_blocking_handshake_enabled(false);
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if (tls->accept_stream(tcp, key, cert) != OK) {
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_clear_client();
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return;
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}
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}
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tls->poll();
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if (tls->get_status() == StreamPeerTLS::STATUS_HANDSHAKING) {
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// Still handshaking, keep waiting.
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return;
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}
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if (tls->get_status() != StreamPeerTLS::STATUS_CONNECTED) {
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_clear_client();
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return;
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}
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}
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while (true) {
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char *r = (char *)req_buf;
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int l = req_pos - 1;
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if (l > 3 && r[l] == '\n' && r[l - 1] == '\r' && r[l - 2] == '\n' && r[l - 3] == '\r') {
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_send_response();
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_clear_client();
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return;
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}
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int read = 0;
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ERR_FAIL_COND(req_pos >= 4096);
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Error err = peer->get_partial_data(&req_buf[req_pos], 1, read);
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if (err != OK) {
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// Got an error
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_clear_client();
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return;
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} else if (read != 1) {
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// Busy, wait next poll
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return;
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}
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req_pos += read;
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}
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}
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};
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#endif // WEB_EDITOR_HTTP_SERVER_H
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