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godot/editor/fileserver/editor_file_server.cpp

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/*************************************************************************/
/* editor_file_server.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 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 "editor_file_server.h"
#include "../editor_settings.h"
#include "core/io/marshalls.h"
//#define DEBUG_PRINT(m_p) print_line(m_p)
//#define DEBUG_TIME(m_what) printf("MS: %s - %lu\n", m_what, OS::get_singleton()->get_ticks_usec());
#define DEBUG_PRINT(m_what)
#define DEBUG_TIME(m_what)
void EditorFileServer::_close_client(ClientData *cd) {
cd->connection->disconnect_from_host();
{
MutexLock lock(cd->efs->wait_mutex);
cd->efs->to_wait.insert(cd->thread);
}
while (cd->files.size()) {
memdelete(cd->files.front()->get());
cd->files.erase(cd->files.front());
}
memdelete(cd);
}
void EditorFileServer::_subthread_start(void *s) {
ClientData *cd = (ClientData *)s;
cd->connection->set_no_delay(true);
uint8_t buf4[8];
Error err = cd->connection->get_data(buf4, 4);
if (err != OK) {
_close_client(cd);
ERR_FAIL_COND(err != OK);
}
int passlen = decode_uint32(buf4);
if (passlen > 512) {
_close_client(cd);
ERR_FAIL_COND(passlen > 512);
} else if (passlen > 0) {
Vector<char> passutf8;
passutf8.resize(passlen + 1);
err = cd->connection->get_data((uint8_t *)passutf8.ptr(), passlen);
if (err != OK) {
_close_client(cd);
ERR_FAIL_COND(err != OK);
}
passutf8.write[passlen] = 0;
String s2;
s2.parse_utf8(passutf8.ptr());
if (s2 != cd->efs->password) {
encode_uint32(ERR_INVALID_DATA, buf4);
cd->connection->put_data(buf4, 4);
OS::get_singleton()->delay_usec(1000000);
_close_client(cd);
ERR_PRINT("CLIENT PASSWORD MISMATCH");
ERR_FAIL();
}
} else {
if (cd->efs->password != "") {
encode_uint32(ERR_INVALID_DATA, buf4);
cd->connection->put_data(buf4, 4);
OS::get_singleton()->delay_usec(1000000);
_close_client(cd);
ERR_PRINT("CLIENT PASSWORD MISMATCH (should be empty!)");
ERR_FAIL();
}
}
encode_uint32(OK, buf4);
cd->connection->put_data(buf4, 4);
while (!cd->quit) {
//wait for ID
err = cd->connection->get_data(buf4, 4);
DEBUG_TIME("get_data")
if (err != OK) {
_close_client(cd);
ERR_FAIL_COND(err != OK);
}
int id = decode_uint32(buf4);
//wait for command
err = cd->connection->get_data(buf4, 4);
if (err != OK) {
_close_client(cd);
ERR_FAIL_COND(err != OK);
}
int cmd = decode_uint32(buf4);
switch (cmd) {
case FileAccessNetwork::COMMAND_FILE_EXISTS:
case FileAccessNetwork::COMMAND_GET_MODTIME:
case FileAccessNetwork::COMMAND_OPEN_FILE: {
DEBUG_TIME("open_file")
err = cd->connection->get_data(buf4, 4);
if (err != OK) {
_close_client(cd);
ERR_FAIL_COND(err != OK);
}
int namelen = decode_uint32(buf4);
Vector<char> fileutf8;
fileutf8.resize(namelen + 1);
err = cd->connection->get_data((uint8_t *)fileutf8.ptr(), namelen);
if (err != OK) {
_close_client(cd);
ERR_FAIL_COND(err != OK);
}
fileutf8.write[namelen] = 0;
String s2;
s2.parse_utf8(fileutf8.ptr());
if (cmd == FileAccessNetwork::COMMAND_FILE_EXISTS) {
print_verbose("FILE EXISTS: " + s2);
}
if (cmd == FileAccessNetwork::COMMAND_GET_MODTIME) {
print_verbose("MOD TIME: " + s2);
}
if (cmd == FileAccessNetwork::COMMAND_OPEN_FILE) {
print_verbose("OPEN: " + s2);
}
if (!s2.begins_with("res://")) {
_close_client(cd);
ERR_FAIL_COND(!s2.begins_with("res://"));
}
ERR_CONTINUE(cd->files.has(id));
if (cmd == FileAccessNetwork::COMMAND_FILE_EXISTS) {
encode_uint32(id, buf4);
cd->connection->put_data(buf4, 4);
encode_uint32(FileAccessNetwork::RESPONSE_FILE_EXISTS, buf4);
cd->connection->put_data(buf4, 4);
encode_uint32(FileAccess::exists(s2), buf4);
cd->connection->put_data(buf4, 4);
DEBUG_TIME("open_file_end")
break;
}
if (cmd == FileAccessNetwork::COMMAND_GET_MODTIME) {
encode_uint32(id, buf4);
cd->connection->put_data(buf4, 4);
encode_uint32(FileAccessNetwork::RESPONSE_GET_MODTIME, buf4);
cd->connection->put_data(buf4, 4);
encode_uint64(FileAccess::get_modified_time(s2), buf4);
cd->connection->put_data(buf4, 8);
DEBUG_TIME("open_file_end")
break;
}
FileAccess *fa = FileAccess::open(s2, FileAccess::READ);
if (!fa) {
//not found, continue
encode_uint32(id, buf4);
cd->connection->put_data(buf4, 4);
encode_uint32(FileAccessNetwork::RESPONSE_OPEN, buf4);
cd->connection->put_data(buf4, 4);
encode_uint32(ERR_FILE_NOT_FOUND, buf4);
cd->connection->put_data(buf4, 4);
DEBUG_TIME("open_file_end")
break;
}
encode_uint32(id, buf4);
cd->connection->put_data(buf4, 4);
encode_uint32(FileAccessNetwork::RESPONSE_OPEN, buf4);
cd->connection->put_data(buf4, 4);
encode_uint32(OK, buf4);
cd->connection->put_data(buf4, 4);
encode_uint64(fa->get_length(), buf4);
cd->connection->put_data(buf4, 8);
cd->files[id] = fa;
DEBUG_TIME("open_file_end")
} break;
case FileAccessNetwork::COMMAND_READ_BLOCK: {
err = cd->connection->get_data(buf4, 8);
if (err != OK) {
_close_client(cd);
ERR_FAIL_COND(err != OK);
}
ERR_CONTINUE(!cd->files.has(id));
uint64_t offset = decode_uint64(buf4);
err = cd->connection->get_data(buf4, 4);
if (err != OK) {
_close_client(cd);
ERR_FAIL_COND(err != OK);
}
int blocklen = decode_uint32(buf4);
ERR_CONTINUE(blocklen > (16 * 1024 * 1024));
cd->files[id]->seek(offset);
Vector<uint8_t> buf;
buf.resize(blocklen);
uint32_t read = cd->files[id]->get_buffer(buf.ptrw(), blocklen);
print_verbose("GET BLOCK - offset: " + itos(offset) + ", blocklen: " + itos(blocklen));
//not found, continue
encode_uint32(id, buf4);
cd->connection->put_data(buf4, 4);
encode_uint32(FileAccessNetwork::RESPONSE_DATA, buf4);
cd->connection->put_data(buf4, 4);
encode_uint64(offset, buf4);
cd->connection->put_data(buf4, 8);
encode_uint32(read, buf4);
cd->connection->put_data(buf4, 4);
cd->connection->put_data(buf.ptr(), read);
} break;
case FileAccessNetwork::COMMAND_CLOSE: {
print_verbose("CLOSED");
ERR_CONTINUE(!cd->files.has(id));
memdelete(cd->files[id]);
cd->files.erase(id);
} break;
}
}
_close_client(cd);
}
void EditorFileServer::_thread_start(void *s) {
EditorFileServer *self = (EditorFileServer *)s;
while (!self->quit) {
if (self->cmd == CMD_ACTIVATE) {
self->server->listen(self->port);
self->active = true;
self->cmd = CMD_NONE;
} else if (self->cmd == CMD_STOP) {
self->server->stop();
self->active = false;
self->cmd = CMD_NONE;
}
if (self->active) {
if (self->server->is_connection_available()) {
ClientData *cd = memnew(ClientData);
cd->connection = self->server->take_connection();
cd->efs = self;
cd->quit = false;
cd->thread = memnew(Thread);
cd->thread->start(_subthread_start, cd);
}
}
self->wait_mutex.lock();
while (self->to_wait.size()) {
Thread *w = self->to_wait.front()->get();
self->to_wait.erase(w);
self->wait_mutex.unlock();
w->wait_to_finish();
self->wait_mutex.lock();
}
self->wait_mutex.unlock();
OS::get_singleton()->delay_usec(100000);
}
}
void EditorFileServer::start() {
stop();
port = EDITOR_DEF("filesystem/file_server/port", 6010);
password = EDITOR_DEF("filesystem/file_server/password", "");
cmd = CMD_ACTIVATE;
}
bool EditorFileServer::is_active() const {
return active;
}
void EditorFileServer::stop() {
cmd = CMD_STOP;
}
EditorFileServer::EditorFileServer() {
server.instance();
quit = false;
active = false;
cmd = CMD_NONE;
thread.start(_thread_start, this);
EDITOR_DEF("filesystem/file_server/port", 6010);
EDITOR_DEF("filesystem/file_server/password", "");
}
EditorFileServer::~EditorFileServer() {
quit = true;
thread.wait_to_finish();
}
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