2587fcccee
Implements the same heuristic as Curl (and web browsers): if no `Content-Length`, no `Connection: keep-alive` and no chunked transfer encoding, assume th rest of the data until EOF is the body, gracefully setting the HTTP client back to the disconnected state. Theoretically, this is not compliant with HTTP 1.1, by which `keep-alive` is the default, but in practice, an explicit header is sent by servers.
373 lines
8.8 KiB
C++
373 lines
8.8 KiB
C++
/*************************************************************************/
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/* stream_peer_tcp_winsock.cpp */
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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) 2007-2018 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
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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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#ifdef WINDOWS_ENABLED
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#include "stream_peer_tcp_winsock.h"
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#include "drivers/unix/socket_helpers.h"
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int winsock_refcount = 0;
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StreamPeerTCP *StreamPeerTCPWinsock::_create() {
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return memnew(StreamPeerTCPWinsock);
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};
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void StreamPeerTCPWinsock::make_default() {
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StreamPeerTCP::_create = StreamPeerTCPWinsock::_create;
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if (winsock_refcount == 0) {
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WSADATA data;
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WSAStartup(MAKEWORD(2, 2), &data);
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};
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++winsock_refcount;
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};
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void StreamPeerTCPWinsock::cleanup() {
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--winsock_refcount;
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if (winsock_refcount == 0) {
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WSACleanup();
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};
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};
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Error StreamPeerTCPWinsock::_block(int p_sockfd, bool p_read, bool p_write) const {
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fd_set read, write;
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FD_ZERO(&read);
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FD_ZERO(&write);
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if (p_read)
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FD_SET(p_sockfd, &read);
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if (p_write)
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FD_SET(p_sockfd, &write);
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int ret = select(p_sockfd + 1, &read, &write, NULL, NULL); // block forever
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return ret < 0 ? FAILED : OK;
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};
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Error StreamPeerTCPWinsock::_poll_connection() const {
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ERR_FAIL_COND_V(status != STATUS_CONNECTING || sockfd == INVALID_SOCKET, FAILED);
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struct sockaddr_storage their_addr;
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size_t addr_size = _set_sockaddr(&their_addr, peer_host, peer_port, sock_type);
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if (::connect(sockfd, (struct sockaddr *)&their_addr, addr_size) == SOCKET_ERROR) {
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int err = WSAGetLastError();
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if (err == WSAEISCONN) {
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status = STATUS_CONNECTED;
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return OK;
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};
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if (err == WSAEINPROGRESS || err == WSAEALREADY) {
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return OK;
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}
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status = STATUS_ERROR;
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return ERR_CONNECTION_ERROR;
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} else {
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status = STATUS_CONNECTED;
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return OK;
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};
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return OK;
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};
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Error StreamPeerTCPWinsock::write(const uint8_t *p_data, int p_bytes, int &r_sent, bool p_block) {
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if (status == STATUS_NONE || status == STATUS_ERROR) {
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return FAILED;
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};
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if (status != STATUS_CONNECTED) {
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if (_poll_connection() != OK) {
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return FAILED;
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};
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if (status != STATUS_CONNECTED) {
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r_sent = 0;
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return OK;
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};
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};
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int data_to_send = p_bytes;
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const uint8_t *offset = p_data;
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if (sockfd == -1) return FAILED;
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int total_sent = 0;
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while (data_to_send) {
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int sent_amount = send(sockfd, (const char *)offset, data_to_send, 0);
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if (sent_amount == -1) {
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if (WSAGetLastError() != WSAEWOULDBLOCK) {
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perror("Nothing sent");
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disconnect_from_host();
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ERR_PRINT("Server disconnected!\n");
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return FAILED;
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};
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if (!p_block) {
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r_sent = total_sent;
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return OK;
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};
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_block(sockfd, false, true);
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} else {
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data_to_send -= sent_amount;
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offset += sent_amount;
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total_sent += sent_amount;
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};
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}
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r_sent = total_sent;
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return OK;
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};
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Error StreamPeerTCPWinsock::read(uint8_t *p_buffer, int p_bytes, int &r_received, bool p_block) {
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if (!is_connected_to_host()) {
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return FAILED;
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};
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if (status != STATUS_CONNECTED) {
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if (_poll_connection() != OK) {
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return FAILED;
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};
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if (status != STATUS_CONNECTED) {
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r_received = 0;
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return OK;
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};
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};
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int to_read = p_bytes;
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int total_read = 0;
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while (to_read) {
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int read = recv(sockfd, (char *)p_buffer + total_read, to_read, 0);
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if (read == -1) {
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if (WSAGetLastError() != WSAEWOULDBLOCK) {
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perror("Nothing read");
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disconnect_from_host();
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ERR_PRINT("Server disconnected!\n");
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return FAILED;
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};
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if (!p_block) {
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r_received = total_read;
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return OK;
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};
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_block(sockfd, true, false);
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} else if (read == 0) {
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disconnect_from_host();
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r_received = total_read;
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return ERR_FILE_EOF;
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} else {
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to_read -= read;
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total_read += read;
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};
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};
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r_received = total_read;
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return OK;
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};
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Error StreamPeerTCPWinsock::put_data(const uint8_t *p_data, int p_bytes) {
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int total;
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return write(p_data, p_bytes, total, true);
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};
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Error StreamPeerTCPWinsock::put_partial_data(const uint8_t *p_data, int p_bytes, int &r_sent) {
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return write(p_data, p_bytes, r_sent, false);
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};
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Error StreamPeerTCPWinsock::get_data(uint8_t *p_buffer, int p_bytes) {
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int total;
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return read(p_buffer, p_bytes, total, true);
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};
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Error StreamPeerTCPWinsock::get_partial_data(uint8_t *p_buffer, int p_bytes, int &r_received) {
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return read(p_buffer, p_bytes, r_received, false);
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};
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StreamPeerTCP::Status StreamPeerTCPWinsock::get_status() const {
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if (status == STATUS_CONNECTING) {
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_poll_connection();
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};
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return status;
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};
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bool StreamPeerTCPWinsock::is_connected_to_host() const {
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if (status == STATUS_NONE || status == STATUS_ERROR) {
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return false;
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};
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if (status != STATUS_CONNECTED) {
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return true;
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};
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return (sockfd != INVALID_SOCKET);
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};
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void StreamPeerTCPWinsock::disconnect_from_host() {
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if (sockfd != INVALID_SOCKET)
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closesocket(sockfd);
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sockfd = INVALID_SOCKET;
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sock_type = IP::TYPE_NONE;
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status = STATUS_NONE;
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peer_host = IP_Address();
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peer_port = 0;
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};
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void StreamPeerTCPWinsock::set_socket(int p_sockfd, IP_Address p_host, int p_port, IP::Type p_sock_type) {
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sockfd = p_sockfd;
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sock_type = p_sock_type;
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status = STATUS_CONNECTING;
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peer_host = p_host;
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peer_port = p_port;
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};
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Error StreamPeerTCPWinsock::connect_to_host(const IP_Address &p_host, uint16_t p_port) {
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ERR_FAIL_COND_V(!p_host.is_valid(), ERR_INVALID_PARAMETER);
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sock_type = p_host.is_ipv4() ? IP::TYPE_IPV4 : IP::TYPE_IPV6;
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sockfd = _socket_create(sock_type, SOCK_STREAM, IPPROTO_TCP);
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if (sockfd == INVALID_SOCKET) {
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ERR_PRINT("Socket creation failed!");
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disconnect_from_host();
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//perror("socket");
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return FAILED;
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};
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unsigned long par = 1;
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if (ioctlsocket(sockfd, FIONBIO, &par)) {
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perror("setting non-block mode");
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disconnect_from_host();
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return FAILED;
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};
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struct sockaddr_storage their_addr;
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size_t addr_size = _set_sockaddr(&their_addr, p_host, p_port, sock_type);
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if (::connect(sockfd, (struct sockaddr *)&their_addr, addr_size) == SOCKET_ERROR) {
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if (WSAGetLastError() != WSAEWOULDBLOCK) {
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ERR_PRINT("Connection to remote host failed!");
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disconnect_from_host();
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return FAILED;
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};
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status = STATUS_CONNECTING;
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} else {
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status = STATUS_CONNECTED;
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};
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peer_host = p_host;
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peer_port = p_port;
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return OK;
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};
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void StreamPeerTCPWinsock::set_no_delay(bool p_enabled) {
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ERR_FAIL_COND(!is_connected_to_host());
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int flag = p_enabled ? 1 : 0;
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setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, (char *)&flag, sizeof(int));
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}
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int StreamPeerTCPWinsock::get_available_bytes() const {
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unsigned long len;
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int ret = ioctlsocket(sockfd, FIONREAD, &len);
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ERR_FAIL_COND_V(ret == -1, 0)
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return len;
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}
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IP_Address StreamPeerTCPWinsock::get_connected_host() const {
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return peer_host;
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};
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uint16_t StreamPeerTCPWinsock::get_connected_port() const {
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return peer_port;
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};
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StreamPeerTCPWinsock::StreamPeerTCPWinsock() {
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sock_type = IP::TYPE_NONE;
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sockfd = INVALID_SOCKET;
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status = STATUS_NONE;
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peer_port = 0;
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};
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StreamPeerTCPWinsock::~StreamPeerTCPWinsock() {
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disconnect_from_host();
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};
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#endif
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