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[Net] Makes HTTPClient a custom instance class.

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This commit is contained in:
Fabio Alessandrelli 2021-03-23 17:03:29 +01:00
parent 421e771012
commit b00c4a4360
8 changed files with 914 additions and 770 deletions
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631
core/io/http_client.cpp
View file

@ -30,9 +30,6 @@
#include "http_client.h"
#include "core/io/stream_peer_ssl.h"
#include "core/version.h"
const char *HTTPClient::_methods[METHOD_MAX] = {
"GET",
"HEAD",
@ -45,633 +42,13 @@ const char *HTTPClient::_methods[METHOD_MAX] = {
"PATCH"
};
#ifndef JAVASCRIPT_ENABLED
Error HTTPClient::connect_to_host(const String &p_host, int p_port, bool p_ssl, bool p_verify_host) {
close();
conn_port = p_port;
conn_host = p_host;
ssl = p_ssl;
ssl_verify_host = p_verify_host;
String host_lower = conn_host.to_lower();
if (host_lower.begins_with("http://")) {
conn_host = conn_host.substr(7, conn_host.length() - 7);
} else if (host_lower.begins_with("https://")) {
ssl = true;
conn_host = conn_host.substr(8, conn_host.length() - 8);
HTTPClient *HTTPClient::create() {
if (_create) {
return _create();
}
ERR_FAIL_COND_V(conn_host.length() < HOST_MIN_LEN, ERR_INVALID_PARAMETER);
if (conn_port < 0) {
if (ssl) {
conn_port = PORT_HTTPS;
} else {
conn_port = PORT_HTTP;
}
}
connection = tcp_connection;
if (conn_host.is_valid_ip_address()) {
// Host contains valid IP
Error err = tcp_connection->connect_to_host(IPAddress(conn_host), p_port);
if (err) {
status = STATUS_CANT_CONNECT;
return err;
}
status = STATUS_CONNECTING;
} else {
// Host contains hostname and needs to be resolved to IP
resolving = IP::get_singleton()->resolve_hostname_queue_item(conn_host);
status = STATUS_RESOLVING;
}
return OK;
return nullptr;
}
void HTTPClient::set_connection(const Ref<StreamPeer> &p_connection) {
ERR_FAIL_COND_MSG(p_connection.is_null(), "Connection is not a reference to a valid StreamPeer object.");
if (ssl) {
ERR_FAIL_NULL_MSG(Object::cast_to<StreamPeerSSL>(p_connection.ptr()),
"Connection is not a reference to a valid StreamPeerSSL object.");
}
if (connection == p_connection) {
return;
}
close();
connection = p_connection;
status = STATUS_CONNECTED;
}
Ref<StreamPeer> HTTPClient::get_connection() const {
return connection;
}
static bool _check_request_url(HTTPClient::Method p_method, const String &p_url) {
switch (p_method) {
case HTTPClient::METHOD_CONNECT: {
// Authority in host:port format, as in RFC7231
int pos = p_url.find_char(':');
return 0 < pos && pos < p_url.length() - 1;
}
case HTTPClient::METHOD_OPTIONS: {
if (p_url == "*") {
return true;
}
[[fallthrough]];
}
default:
// Absolute path or absolute URL
return p_url.begins_with("/") || p_url.begins_with("http://") || p_url.begins_with("https://");
}
}
Error HTTPClient::request(Method p_method, const String &p_url, const Vector<String> &p_headers, const uint8_t *p_body, int p_body_size) {
ERR_FAIL_INDEX_V(p_method, METHOD_MAX, ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V(!_check_request_url(p_method, p_url), ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V(status != STATUS_CONNECTED, ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V(connection.is_null(), ERR_INVALID_DATA);
String request = String(_methods[p_method]) + " " + p_url + " HTTP/1.1\r\n";
bool add_host = true;
bool add_clen = p_body_size > 0;
bool add_uagent = true;
bool add_accept = true;
for (int i = 0; i < p_headers.size(); i++) {
request += p_headers[i] + "\r\n";
if (add_host && p_headers[i].findn("Host:") == 0) {
add_host = false;
}
if (add_clen && p_headers[i].findn("Content-Length:") == 0) {
add_clen = false;
}
if (add_uagent && p_headers[i].findn("User-Agent:") == 0) {
add_uagent = false;
}
if (add_accept && p_headers[i].findn("Accept:") == 0) {
add_accept = false;
}
}
if (add_host) {
if ((ssl && conn_port == PORT_HTTPS) || (!ssl && conn_port == PORT_HTTP)) {
// Don't append the standard ports
request += "Host: " + conn_host + "\r\n";
} else {
request += "Host: " + conn_host + ":" + itos(conn_port) + "\r\n";
}
}
if (add_clen) {
request += "Content-Length: " + itos(p_body_size) + "\r\n";
// Should it add utf8 encoding?
}
if (add_uagent) {
request += "User-Agent: GodotEngine/" + String(VERSION_FULL_BUILD) + " (" + OS::get_singleton()->get_name() + ")\r\n";
}
if (add_accept) {
request += "Accept: */*\r\n";
}
request += "\r\n";
CharString cs = request.utf8();
Vector<uint8_t> data;
data.resize(cs.length() + p_body_size);
memcpy(data.ptrw(), cs.get_data(), cs.length());
if (p_body_size > 0) {
memcpy(data.ptrw() + cs.length(), p_body, p_body_size);
}
// TODO Implement non-blocking requests.
Error err = connection->put_data(data.ptr(), data.size());
if (err) {
close();
status = STATUS_CONNECTION_ERROR;
return err;
}
status = STATUS_REQUESTING;
head_request = p_method == METHOD_HEAD;
return OK;
}
bool HTTPClient::has_response() const {
return response_headers.size() != 0;
}
bool HTTPClient::is_response_chunked() const {
return chunked;
}
int HTTPClient::get_response_code() const {
return response_num;
}
Error HTTPClient::get_response_headers(List<String> *r_response) {
if (!response_headers.size()) {
return ERR_INVALID_PARAMETER;
}
for (int i = 0; i < response_headers.size(); i++) {
r_response->push_back(response_headers[i]);
}
response_headers.clear();
return OK;
}
void HTTPClient::close() {
if (tcp_connection->get_status() != StreamPeerTCP::STATUS_NONE) {
tcp_connection->disconnect_from_host();
}
connection.unref();
status = STATUS_DISCONNECTED;
head_request = false;
if (resolving != IP::RESOLVER_INVALID_ID) {
IP::get_singleton()->erase_resolve_item(resolving);
resolving = IP::RESOLVER_INVALID_ID;
}
response_headers.clear();
response_str.clear();
body_size = -1;
body_left = 0;
chunk_left = 0;
chunk_trailer_part = false;
read_until_eof = false;
response_num = 0;
handshaking = false;
}
Error HTTPClient::poll() {
switch (status) {
case STATUS_RESOLVING: {
ERR_FAIL_COND_V(resolving == IP::RESOLVER_INVALID_ID, ERR_BUG);
IP::ResolverStatus rstatus = IP::get_singleton()->get_resolve_item_status(resolving);
switch (rstatus) {
case IP::RESOLVER_STATUS_WAITING:
return OK; // Still resolving
case IP::RESOLVER_STATUS_DONE: {
IPAddress host = IP::get_singleton()->get_resolve_item_address(resolving);
Error err = tcp_connection->connect_to_host(host, conn_port);
IP::get_singleton()->erase_resolve_item(resolving);
resolving = IP::RESOLVER_INVALID_ID;
if (err) {
status = STATUS_CANT_CONNECT;
return err;
}
status = STATUS_CONNECTING;
} break;
case IP::RESOLVER_STATUS_NONE:
case IP::RESOLVER_STATUS_ERROR: {
IP::get_singleton()->erase_resolve_item(resolving);
resolving = IP::RESOLVER_INVALID_ID;
close();
status = STATUS_CANT_RESOLVE;
return ERR_CANT_RESOLVE;
} break;
}
} break;
case STATUS_CONNECTING: {
StreamPeerTCP::Status s = tcp_connection->get_status();
switch (s) {
case StreamPeerTCP::STATUS_CONNECTING: {
return OK;
} break;
case StreamPeerTCP::STATUS_CONNECTED: {
if (ssl) {
Ref<StreamPeerSSL> ssl;
if (!handshaking) {
// Connect the StreamPeerSSL and start handshaking
ssl = Ref<StreamPeerSSL>(StreamPeerSSL::create());
ssl->set_blocking_handshake_enabled(false);
Error err = ssl->connect_to_stream(tcp_connection, ssl_verify_host, conn_host);
if (err != OK) {
close();
status = STATUS_SSL_HANDSHAKE_ERROR;
return ERR_CANT_CONNECT;
}
connection = ssl;
handshaking = true;
} else {
// We are already handshaking, which means we can use your already active SSL connection
ssl = static_cast<Ref<StreamPeerSSL>>(connection);
if (ssl.is_null()) {
close();
status = STATUS_SSL_HANDSHAKE_ERROR;
return ERR_CANT_CONNECT;
}
ssl->poll(); // Try to finish the handshake
}
if (ssl->get_status() == StreamPeerSSL::STATUS_CONNECTED) {
// Handshake has been successful
handshaking = false;
status = STATUS_CONNECTED;
return OK;
} else if (ssl->get_status() != StreamPeerSSL::STATUS_HANDSHAKING) {
// Handshake has failed
close();
status = STATUS_SSL_HANDSHAKE_ERROR;
return ERR_CANT_CONNECT;
}
// ... we will need to poll more for handshake to finish
} else {
status = STATUS_CONNECTED;
}
return OK;
} break;
case StreamPeerTCP::STATUS_ERROR:
case StreamPeerTCP::STATUS_NONE: {
close();
status = STATUS_CANT_CONNECT;
return ERR_CANT_CONNECT;
} break;
}
} break;
case STATUS_BODY:
case STATUS_CONNECTED: {
// Check if we are still connected
if (ssl) {
Ref<StreamPeerSSL> tmp = connection;
tmp->poll();
if (tmp->get_status() != StreamPeerSSL::STATUS_CONNECTED) {
status = STATUS_CONNECTION_ERROR;
return ERR_CONNECTION_ERROR;
}
} else if (tcp_connection->get_status() != StreamPeerTCP::STATUS_CONNECTED) {
status = STATUS_CONNECTION_ERROR;
return ERR_CONNECTION_ERROR;
}
// Connection established, requests can now be made
return OK;
} break;
case STATUS_REQUESTING: {
while (true) {
uint8_t byte;
int rec = 0;
Error err = _get_http_data(&byte, 1, rec);
if (err != OK) {
close();
status = STATUS_CONNECTION_ERROR;
return ERR_CONNECTION_ERROR;
}
if (rec == 0) {
return OK; // Still requesting, keep trying!
}
response_str.push_back(byte);
int rs = response_str.size();
if (
(rs >= 2 && response_str[rs - 2] == '\n' && response_str[rs - 1] == '\n') ||
(rs >= 4 && response_str[rs - 4] == '\r' && response_str[rs - 3] == '\n' && response_str[rs - 2] == '\r' && response_str[rs - 1] == '\n')) {
// End of response, parse.
response_str.push_back(0);
String response;
response.parse_utf8((const char *)response_str.ptr());
Vector<String> responses = response.split("\n");
body_size = -1;
chunked = false;
body_left = 0;
chunk_left = 0;
chunk_trailer_part = false;
read_until_eof = false;
response_str.clear();
response_headers.clear();
response_num = RESPONSE_OK;
// Per the HTTP 1.1 spec, keep-alive is the default.
// Not following that specification breaks standard implementations.
// Broken web servers should be fixed.
bool keep_alive = true;
for (int i = 0; i < responses.size(); i++) {
String header = responses[i].strip_edges();
String s = header.to_lower();
if (s.length() == 0) {
continue;
}
if (s.begins_with("content-length:")) {
body_size = s.substr(s.find(":") + 1, s.length()).strip_edges().to_int();
body_left = body_size;
} else if (s.begins_with("transfer-encoding:")) {
String encoding = header.substr(header.find(":") + 1, header.length()).strip_edges();
if (encoding == "chunked") {
chunked = true;
}
} else if (s.begins_with("connection: close")) {
keep_alive = false;
}
if (i == 0 && responses[i].begins_with("HTTP")) {
String num = responses[i].get_slicec(' ', 1);
response_num = num.to_int();
} else {
response_headers.push_back(header);
}
}
// This is a HEAD request, we won't receive anything.
if (head_request) {
body_size = 0;
body_left = 0;
}
if (body_size != -1 || chunked) {
status = STATUS_BODY;
} else if (!keep_alive) {
read_until_eof = true;
status = STATUS_BODY;
} else {
status = STATUS_CONNECTED;
}
return OK;
}
}
} break;
case STATUS_DISCONNECTED: {
return ERR_UNCONFIGURED;
} break;
case STATUS_CONNECTION_ERROR:
case STATUS_SSL_HANDSHAKE_ERROR: {
return ERR_CONNECTION_ERROR;
} break;
case STATUS_CANT_CONNECT: {
return ERR_CANT_CONNECT;
} break;
case STATUS_CANT_RESOLVE: {
return ERR_CANT_RESOLVE;
} break;
}
return OK;
}
int HTTPClient::get_response_body_length() const {
return body_size;
}
PackedByteArray HTTPClient::read_response_body_chunk() {
ERR_FAIL_COND_V(status != STATUS_BODY, PackedByteArray());
PackedByteArray ret;
Error err = OK;
if (chunked) {
while (true) {
if (chunk_trailer_part) {
// We need to consume the trailer part too or keep-alive will break
uint8_t b;
int rec = 0;
err = _get_http_data(&b, 1, rec);
if (rec == 0) {
break;
}
chunk.push_back(b);
int cs = chunk.size();
if ((cs >= 2 && chunk[cs - 2] == '\r' && chunk[cs - 1] == '\n')) {
if (cs == 2) {
// Finally over
chunk_trailer_part = false;
status = STATUS_CONNECTED;
chunk.clear();
break;
} else {
// We do not process nor return the trailer data
chunk.clear();
}
}
} else if (chunk_left == 0) {
// Reading length
uint8_t b;
int rec = 0;
err = _get_http_data(&b, 1, rec);
if (rec == 0) {
break;
}
chunk.push_back(b);
if (chunk.size() > 32) {
ERR_PRINT("HTTP Invalid chunk hex len");
status = STATUS_CONNECTION_ERROR;
break;
}
if (chunk.size() > 2 && chunk[chunk.size() - 2] == '\r' && chunk[chunk.size() - 1] == '\n') {
int len = 0;
for (int i = 0; i < chunk.size() - 2; i++) {
char c = chunk[i];
int v = 0;
if (c >= '0' && c <= '9') {
v = c - '0';
} else if (c >= 'a' && c <= 'f') {
v = c - 'a' + 10;
} else if (c >= 'A' && c <= 'F') {
v = c - 'A' + 10;
} else {
ERR_PRINT("HTTP Chunk len not in hex!!");
status = STATUS_CONNECTION_ERROR;
break;
}
len <<= 4;
len |= v;
if (len > (1 << 24)) {
ERR_PRINT("HTTP Chunk too big!! >16mb");
status = STATUS_CONNECTION_ERROR;
break;
}
}
if (len == 0) {
// End reached!
chunk_trailer_part = true;
chunk.clear();
break;
}
chunk_left = len + 2;
chunk.resize(chunk_left);
}
} else {
int rec = 0;
err = _get_http_data(&chunk.write[chunk.size() - chunk_left], chunk_left, rec);
if (rec == 0) {
break;
}
chunk_left -= rec;
if (chunk_left == 0) {
if (chunk[chunk.size() - 2] != '\r' || chunk[chunk.size() - 1] != '\n') {
ERR_PRINT("HTTP Invalid chunk terminator (not \\r\\n)");
status = STATUS_CONNECTION_ERROR;
break;
}
ret.resize(chunk.size() - 2);
uint8_t *w = ret.ptrw();
memcpy(w, chunk.ptr(), chunk.size() - 2);
chunk.clear();
}
break;
}
}
} else {
int to_read = !read_until_eof ? MIN(body_left, read_chunk_size) : read_chunk_size;
ret.resize(to_read);
int _offset = 0;
while (to_read > 0) {
int rec = 0;
{
uint8_t *w = ret.ptrw();
err = _get_http_data(w + _offset, to_read, rec);
}
if (rec <= 0) { // Ended up reading less
ret.resize(_offset);
break;
} else {
_offset += rec;
to_read -= rec;
if (!read_until_eof) {
body_left -= rec;
}
}
if (err != OK) {
break;
}
}
}
if (err != OK) {
close();
if (err == ERR_FILE_EOF) {
status = STATUS_DISCONNECTED; // Server disconnected
} else {
status = STATUS_CONNECTION_ERROR;
}
} else if (body_left == 0 && !chunked && !read_until_eof) {
status = STATUS_CONNECTED;
}
return ret;
}
HTTPClient::Status HTTPClient::get_status() const {
return status;
}
void HTTPClient::set_blocking_mode(bool p_enable) {
blocking = p_enable;
}
bool HTTPClient::is_blocking_mode_enabled() const {
return blocking;
}
Error HTTPClient::_get_http_data(uint8_t *p_buffer, int p_bytes, int &r_received) {
if (blocking) {
// We can't use StreamPeer.get_data, since when reaching EOF we will get an
// error without knowing how many bytes we received.
Error err = ERR_FILE_EOF;
int read = 0;
int left = p_bytes;
r_received = 0;
while (left > 0) {
err = connection->get_partial_data(p_buffer + r_received, left, read);
if (err == OK) {
r_received += read;
} else if (err == ERR_FILE_EOF) {
r_received += read;
return err;
} else {
return err;
}
left -= read;
}
return err;
} else {
return connection->get_partial_data(p_buffer, p_bytes, r_received);
}
}
void HTTPClient::set_read_chunk_size(int p_size) {
ERR_FAIL_COND(p_size < 256 || p_size > (1 << 24));
read_chunk_size = p_size;
}
int HTTPClient::get_read_chunk_size() const {
return read_chunk_size;
}
HTTPClient::HTTPClient() {
tcp_connection.instantiate();
}
HTTPClient::~HTTPClient() {}
#endif // #ifndef JAVASCRIPT_ENABLED
Error HTTPClient::_request_raw(Method p_method, const String &p_url, const Vector<String> &p_headers, const Vector<uint8_t> &p_body) {
int size = p_body.size();
return request(p_method, p_url, p_headers, size > 0 ? p_body.ptr() : nullptr, size);

101
core/io/http_client.h
View file

@ -142,7 +142,7 @@ public:
};
private:
protected:
static const char *_methods[METHOD_MAX];
static const int HOST_MIN_LEN = 4;
@ -152,81 +152,48 @@ private:
};
#ifndef JAVASCRIPT_ENABLED
Status status = STATUS_DISCONNECTED;
IP::ResolverID resolving = IP::RESOLVER_INVALID_ID;
int conn_port = -1;
String conn_host;
bool ssl = false;
bool ssl_verify_host = false;
bool blocking = false;
bool handshaking = false;
bool head_request = false;
Vector<uint8_t> response_str;
bool chunked = false;
Vector<uint8_t> chunk;
int chunk_left = 0;
bool chunk_trailer_part = false;
int body_size = -1;
int body_left = 0;
bool read_until_eof = false;
Ref<StreamPeerTCP> tcp_connection;
Ref<StreamPeer> connection;
int response_num = 0;
Vector<String> response_headers;
// 64 KiB by default (favors fast download speeds at the cost of memory usage).
int read_chunk_size = 65536;
Error _get_http_data(uint8_t *p_buffer, int p_bytes, int &r_received);
#else
#include "platform/javascript/http_client.h.inc"
#endif
PackedStringArray _get_response_headers();
Dictionary _get_response_headers_as_dictionary();
static void _bind_methods();
Error _request_raw(Method p_method, const String &p_url, const Vector<String> &p_headers, const Vector<uint8_t> &p_body);
Error _request(Method p_method, const String &p_url, const Vector<String> &p_headers, const String &p_body = String());
static HTTPClient *(*_create)();
static void _bind_methods();
public:
Error connect_to_host(const String &p_host, int p_port = -1, bool p_ssl = false, bool p_verify_host = true);
void set_connection(const Ref<StreamPeer> &p_connection);
Ref<StreamPeer> get_connection() const;
Error request(Method p_method, const String &p_url, const Vector<String> &p_headers, const uint8_t *p_body, int p_body_size);
void close();
Status get_status() const;
bool has_response() const;
bool is_response_chunked() const;
int get_response_code() const;
Error get_response_headers(List<String> *r_response);
int get_response_body_length() const;
PackedByteArray read_response_body_chunk(); // Can't get body as partial text because of most encodings UTF8, gzip, etc.
void set_blocking_mode(bool p_enable); // Useful mostly if running in a thread
bool is_blocking_mode_enabled() const;
void set_read_chunk_size(int p_size);
int get_read_chunk_size() const;
Error poll();
static HTTPClient *create();
String query_string_from_dict(const Dictionary &p_dict);
HTTPClient();
~HTTPClient();
virtual Error request(Method p_method, const String &p_url, const Vector<String> &p_headers, const uint8_t *p_body, int p_body_size) = 0;
virtual Error connect_to_host(const String &p_host, int p_port = -1, bool p_ssl = false, bool p_verify_host = true) = 0;
virtual void set_connection(const Ref<StreamPeer> &p_connection) = 0;
virtual Ref<StreamPeer> get_connection() const = 0;
virtual void close() = 0;
virtual Status get_status() const = 0;
virtual bool has_response() const = 0;
virtual bool is_response_chunked() const = 0;
virtual int get_response_code() const = 0;
virtual Error get_response_headers(List<String> *r_response) = 0;
virtual int get_response_body_length() const = 0;
virtual PackedByteArray read_response_body_chunk() = 0; // Can't get body as partial text because of most encodings UTF8, gzip, etc.
virtual void set_blocking_mode(bool p_enable) = 0; // Useful mostly if running in a thread
virtual bool is_blocking_mode_enabled() const = 0;
virtual void set_read_chunk_size(int p_size) = 0;
virtual int get_read_chunk_size() const = 0;
virtual Error poll() = 0;
HTTPClient() {}
virtual ~HTTPClient() {}
};
VARIANT_ENUM_CAST(HTTPClient::ResponseCode)

666
core/io/http_client_tcp.cpp Normal file
View file

@ -0,0 +1,666 @@
/*************************************************************************/
/* http_client_tcp.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. */
/*************************************************************************/
#ifndef JAVASCRIPT_ENABLED
#include "http_client_tcp.h"
#include "core/io/stream_peer_ssl.h"
#include "core/version.h"
HTTPClient *HTTPClientTCP::_create_func() {
return memnew(HTTPClientTCP);
}
Error HTTPClientTCP::connect_to_host(const String &p_host, int p_port, bool p_ssl, bool p_verify_host) {
close();
conn_port = p_port;
conn_host = p_host;
ssl = p_ssl;
ssl_verify_host = p_verify_host;
String host_lower = conn_host.to_lower();
if (host_lower.begins_with("http://")) {
conn_host = conn_host.substr(7, conn_host.length() - 7);
} else if (host_lower.begins_with("https://")) {
ssl = true;
conn_host = conn_host.substr(8, conn_host.length() - 8);
}
ERR_FAIL_COND_V(conn_host.length() < HOST_MIN_LEN, ERR_INVALID_PARAMETER);
if (conn_port < 0) {
if (ssl) {
conn_port = PORT_HTTPS;
} else {
conn_port = PORT_HTTP;
}
}
connection = tcp_connection;
if (conn_host.is_valid_ip_address()) {
// Host contains valid IP
Error err = tcp_connection->connect_to_host(IPAddress(conn_host), p_port);
if (err) {
status = STATUS_CANT_CONNECT;
return err;
}
status = STATUS_CONNECTING;
} else {
// Host contains hostname and needs to be resolved to IP
resolving = IP::get_singleton()->resolve_hostname_queue_item(conn_host);
status = STATUS_RESOLVING;
}
return OK;
}
void HTTPClientTCP::set_connection(const Ref<StreamPeer> &p_connection) {
ERR_FAIL_COND_MSG(p_connection.is_null(), "Connection is not a reference to a valid StreamPeer object.");
if (ssl) {
ERR_FAIL_NULL_MSG(Object::cast_to<StreamPeerSSL>(p_connection.ptr()),
"Connection is not a reference to a valid StreamPeerSSL object.");
}
if (connection == p_connection) {
return;
}
close();
connection = p_connection;
status = STATUS_CONNECTED;
}
Ref<StreamPeer> HTTPClientTCP::get_connection() const {
return connection;
}
static bool _check_request_url(HTTPClientTCP::Method p_method, const String &p_url) {
switch (p_method) {
case HTTPClientTCP::METHOD_CONNECT: {
// Authority in host:port format, as in RFC7231
int pos = p_url.find_char(':');
return 0 < pos && pos < p_url.length() - 1;
}
case HTTPClientTCP::METHOD_OPTIONS: {
if (p_url == "*") {
return true;
}
[[fallthrough]];
}
default:
// Absolute path or absolute URL
return p_url.begins_with("/") || p_url.begins_with("http://") || p_url.begins_with("https://");
}
}
Error HTTPClientTCP::request(Method p_method, const String &p_url, const Vector<String> &p_headers, const uint8_t *p_body, int p_body_size) {
ERR_FAIL_INDEX_V(p_method, METHOD_MAX, ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V(!_check_request_url(p_method, p_url), ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V(status != STATUS_CONNECTED, ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V(connection.is_null(), ERR_INVALID_DATA);
String request = String(_methods[p_method]) + " " + p_url + " HTTP/1.1\r\n";
bool add_host = true;
bool add_clen = p_body_size > 0;
bool add_uagent = true;
bool add_accept = true;
for (int i = 0; i < p_headers.size(); i++) {
request += p_headers[i] + "\r\n";
if (add_host && p_headers[i].findn("Host:") == 0) {
add_host = false;
}
if (add_clen && p_headers[i].findn("Content-Length:") == 0) {
add_clen = false;
}
if (add_uagent && p_headers[i].findn("User-Agent:") == 0) {
add_uagent = false;
}
if (add_accept && p_headers[i].findn("Accept:") == 0) {
add_accept = false;
}
}
if (add_host) {
if ((ssl && conn_port == PORT_HTTPS) || (!ssl && conn_port == PORT_HTTP)) {
// Don't append the standard ports
request += "Host: " + conn_host + "\r\n";
} else {
request += "Host: " + conn_host + ":" + itos(conn_port) + "\r\n";
}
}
if (add_clen) {
request += "Content-Length: " + itos(p_body_size) + "\r\n";
// Should it add utf8 encoding?
}
if (add_uagent) {
request += "User-Agent: GodotEngine/" + String(VERSION_FULL_BUILD) + " (" + OS::get_singleton()->get_name() + ")\r\n";
}
if (add_accept) {
request += "Accept: */*\r\n";
}
request += "\r\n";
CharString cs = request.utf8();
Vector<uint8_t> data;
data.resize(cs.length() + p_body_size);
memcpy(data.ptrw(), cs.get_data(), cs.length());
if (p_body_size > 0) {
memcpy(data.ptrw() + cs.length(), p_body, p_body_size);
}
// TODO Implement non-blocking requests.
Error err = connection->put_data(data.ptr(), data.size());
if (err) {
close();
status = STATUS_CONNECTION_ERROR;
return err;
}
status = STATUS_REQUESTING;
head_request = p_method == METHOD_HEAD;
return OK;
}
bool HTTPClientTCP::has_response() const {
return response_headers.size() != 0;
}
bool HTTPClientTCP::is_response_chunked() const {
return chunked;
}
int HTTPClientTCP::get_response_code() const {
return response_num;
}
Error HTTPClientTCP::get_response_headers(List<String> *r_response) {
if (!response_headers.size()) {
return ERR_INVALID_PARAMETER;
}
for (int i = 0; i < response_headers.size(); i++) {
r_response->push_back(response_headers[i]);
}
response_headers.clear();
return OK;
}
void HTTPClientTCP::close() {
if (tcp_connection->get_status() != StreamPeerTCP::STATUS_NONE) {
tcp_connection->disconnect_from_host();
}
connection.unref();
status = STATUS_DISCONNECTED;
head_request = false;
if (resolving != IP::RESOLVER_INVALID_ID) {
IP::get_singleton()->erase_resolve_item(resolving);
resolving = IP::RESOLVER_INVALID_ID;
}
response_headers.clear();
response_str.clear();
body_size = -1;
body_left = 0;
chunk_left = 0;
chunk_trailer_part = false;
read_until_eof = false;
response_num = 0;
handshaking = false;
}
Error HTTPClientTCP::poll() {
switch (status) {
case STATUS_RESOLVING: {
ERR_FAIL_COND_V(resolving == IP::RESOLVER_INVALID_ID, ERR_BUG);
IP::ResolverStatus rstatus = IP::get_singleton()->get_resolve_item_status(resolving);
switch (rstatus) {
case IP::RESOLVER_STATUS_WAITING:
return OK; // Still resolving
case IP::RESOLVER_STATUS_DONE: {
IPAddress host = IP::get_singleton()->get_resolve_item_address(resolving);
Error err = tcp_connection->connect_to_host(host, conn_port);
IP::get_singleton()->erase_resolve_item(resolving);
resolving = IP::RESOLVER_INVALID_ID;
if (err) {
status = STATUS_CANT_CONNECT;
return err;
}
status = STATUS_CONNECTING;
} break;
case IP::RESOLVER_STATUS_NONE:
case IP::RESOLVER_STATUS_ERROR: {
IP::get_singleton()->erase_resolve_item(resolving);
resolving = IP::RESOLVER_INVALID_ID;
close();
status = STATUS_CANT_RESOLVE;
return ERR_CANT_RESOLVE;
} break;
}
} break;
case STATUS_CONNECTING: {
StreamPeerTCP::Status s = tcp_connection->get_status();
switch (s) {
case StreamPeerTCP::STATUS_CONNECTING: {
return OK;
} break;
case StreamPeerTCP::STATUS_CONNECTED: {
if (ssl) {
Ref<StreamPeerSSL> ssl;
if (!handshaking) {
// Connect the StreamPeerSSL and start handshaking
ssl = Ref<StreamPeerSSL>(StreamPeerSSL::create());
ssl->set_blocking_handshake_enabled(false);
Error err = ssl->connect_to_stream(tcp_connection, ssl_verify_host, conn_host);
if (err != OK) {
close();
status = STATUS_SSL_HANDSHAKE_ERROR;
return ERR_CANT_CONNECT;
}
connection = ssl;
handshaking = true;
} else {
// We are already handshaking, which means we can use your already active SSL connection
ssl = static_cast<Ref<StreamPeerSSL>>(connection);
if (ssl.is_null()) {
close();
status = STATUS_SSL_HANDSHAKE_ERROR;
return ERR_CANT_CONNECT;
}
ssl->poll(); // Try to finish the handshake
}
if (ssl->get_status() == StreamPeerSSL::STATUS_CONNECTED) {
// Handshake has been successful
handshaking = false;
status = STATUS_CONNECTED;
return OK;
} else if (ssl->get_status() != StreamPeerSSL::STATUS_HANDSHAKING) {
// Handshake has failed
close();
status = STATUS_SSL_HANDSHAKE_ERROR;
return ERR_CANT_CONNECT;
}
// ... we will need to poll more for handshake to finish
} else {
status = STATUS_CONNECTED;
}
return OK;
} break;
case StreamPeerTCP::STATUS_ERROR:
case StreamPeerTCP::STATUS_NONE: {
close();
status = STATUS_CANT_CONNECT;
return ERR_CANT_CONNECT;
} break;
}
} break;
case STATUS_BODY:
case STATUS_CONNECTED: {
// Check if we are still connected
if (ssl) {
Ref<StreamPeerSSL> tmp = connection;
tmp->poll();
if (tmp->get_status() != StreamPeerSSL::STATUS_CONNECTED) {
status = STATUS_CONNECTION_ERROR;
return ERR_CONNECTION_ERROR;
}
} else if (tcp_connection->get_status() != StreamPeerTCP::STATUS_CONNECTED) {
status = STATUS_CONNECTION_ERROR;
return ERR_CONNECTION_ERROR;
}
// Connection established, requests can now be made
return OK;
} break;
case STATUS_REQUESTING: {
while (true) {
uint8_t byte;
int rec = 0;
Error err = _get_http_data(&byte, 1, rec);
if (err != OK) {
close();
status = STATUS_CONNECTION_ERROR;
return ERR_CONNECTION_ERROR;
}
if (rec == 0) {
return OK; // Still requesting, keep trying!
}
response_str.push_back(byte);
int rs = response_str.size();
if (
(rs >= 2 && response_str[rs - 2] == '\n' && response_str[rs - 1] == '\n') ||
(rs >= 4 && response_str[rs - 4] == '\r' && response_str[rs - 3] == '\n' && response_str[rs - 2] == '\r' && response_str[rs - 1] == '\n')) {
// End of response, parse.
response_str.push_back(0);
String response;
response.parse_utf8((const char *)response_str.ptr());
Vector<String> responses = response.split("\n");
body_size = -1;
chunked = false;
body_left = 0;
chunk_left = 0;
chunk_trailer_part = false;
read_until_eof = false;
response_str.clear();
response_headers.clear();
response_num = RESPONSE_OK;
// Per the HTTP 1.1 spec, keep-alive is the default.
// Not following that specification breaks standard implementations.
// Broken web servers should be fixed.
bool keep_alive = true;
for (int i = 0; i < responses.size(); i++) {
String header = responses[i].strip_edges();
String s = header.to_lower();
if (s.length() == 0) {
continue;
}
if (s.begins_with("content-length:")) {
body_size = s.substr(s.find(":") + 1, s.length()).strip_edges().to_int();
body_left = body_size;
} else if (s.begins_with("transfer-encoding:")) {
String encoding = header.substr(header.find(":") + 1, header.length()).strip_edges();
if (encoding == "chunked") {
chunked = true;
}
} else if (s.begins_with("connection: close")) {
keep_alive = false;
}
if (i == 0 && responses[i].begins_with("HTTP")) {
String num = responses[i].get_slicec(' ', 1);
response_num = num.to_int();
} else {
response_headers.push_back(header);
}
}
// This is a HEAD request, we won't receive anything.
if (head_request) {
body_size = 0;
body_left = 0;
}
if (body_size != -1 || chunked) {
status = STATUS_BODY;
} else if (!keep_alive) {
read_until_eof = true;
status = STATUS_BODY;
} else {
status = STATUS_CONNECTED;
}
return OK;
}
}
} break;
case STATUS_DISCONNECTED: {
return ERR_UNCONFIGURED;
} break;
case STATUS_CONNECTION_ERROR:
case STATUS_SSL_HANDSHAKE_ERROR: {
return ERR_CONNECTION_ERROR;
} break;
case STATUS_CANT_CONNECT: {
return ERR_CANT_CONNECT;
} break;
case STATUS_CANT_RESOLVE: {
return ERR_CANT_RESOLVE;
} break;
}
return OK;
}
int HTTPClientTCP::get_response_body_length() const {
return body_size;
}
PackedByteArray HTTPClientTCP::read_response_body_chunk() {
ERR_FAIL_COND_V(status != STATUS_BODY, PackedByteArray());
PackedByteArray ret;
Error err = OK;
if (chunked) {
while (true) {
if (chunk_trailer_part) {
// We need to consume the trailer part too or keep-alive will break
uint8_t b;
int rec = 0;
err = _get_http_data(&b, 1, rec);
if (rec == 0) {
break;
}
chunk.push_back(b);
int cs = chunk.size();
if ((cs >= 2 && chunk[cs - 2] == '\r' && chunk[cs - 1] == '\n')) {
if (cs == 2) {
// Finally over
chunk_trailer_part = false;
status = STATUS_CONNECTED;
chunk.clear();
break;
} else {
// We do not process nor return the trailer data
chunk.clear();
}
}
} else if (chunk_left == 0) {
// Reading length
uint8_t b;
int rec = 0;
err = _get_http_data(&b, 1, rec);
if (rec == 0) {
break;
}
chunk.push_back(b);
if (chunk.size() > 32) {
ERR_PRINT("HTTP Invalid chunk hex len");
status = STATUS_CONNECTION_ERROR;
break;
}
if (chunk.size() > 2 && chunk[chunk.size() - 2] == '\r' && chunk[chunk.size() - 1] == '\n') {
int len = 0;
for (int i = 0; i < chunk.size() - 2; i++) {
char c = chunk[i];
int v = 0;
if (c >= '0' && c <= '9') {
v = c - '0';
} else if (c >= 'a' && c <= 'f') {
v = c - 'a' + 10;
} else if (c >= 'A' && c <= 'F') {
v = c - 'A' + 10;
} else {
ERR_PRINT("HTTP Chunk len not in hex!!");
status = STATUS_CONNECTION_ERROR;
break;
}
len <<= 4;
len |= v;
if (len > (1 << 24)) {
ERR_PRINT("HTTP Chunk too big!! >16mb");
status = STATUS_CONNECTION_ERROR;
break;
}
}
if (len == 0) {
// End reached!
chunk_trailer_part = true;
chunk.clear();
break;
}
chunk_left = len + 2;
chunk.resize(chunk_left);
}
} else {
int rec = 0;
err = _get_http_data(&chunk.write[chunk.size() - chunk_left], chunk_left, rec);
if (rec == 0) {
break;
}
chunk_left -= rec;
if (chunk_left == 0) {
if (chunk[chunk.size() - 2] != '\r' || chunk[chunk.size() - 1] != '\n') {
ERR_PRINT("HTTP Invalid chunk terminator (not \\r\\n)");
status = STATUS_CONNECTION_ERROR;
break;
}
ret.resize(chunk.size() - 2);
uint8_t *w = ret.ptrw();
memcpy(w, chunk.ptr(), chunk.size() - 2);
chunk.clear();
}
break;
}
}
} else {
int to_read = !read_until_eof ? MIN(body_left, read_chunk_size) : read_chunk_size;
ret.resize(to_read);
int _offset = 0;
while (to_read > 0) {
int rec = 0;
{
uint8_t *w = ret.ptrw();
err = _get_http_data(w + _offset, to_read, rec);
}
if (rec <= 0) { // Ended up reading less
ret.resize(_offset);
break;
} else {
_offset += rec;
to_read -= rec;
if (!read_until_eof) {
body_left -= rec;
}
}
if (err != OK) {
break;
}
}
}
if (err != OK) {
close();
if (err == ERR_FILE_EOF) {
status = STATUS_DISCONNECTED; // Server disconnected
} else {
status = STATUS_CONNECTION_ERROR;
}
} else if (body_left == 0 && !chunked && !read_until_eof) {
status = STATUS_CONNECTED;
}
return ret;
}
HTTPClientTCP::Status HTTPClientTCP::get_status() const {
return status;
}
void HTTPClientTCP::set_blocking_mode(bool p_enable) {
blocking = p_enable;
}
bool HTTPClientTCP::is_blocking_mode_enabled() const {
return blocking;
}
Error HTTPClientTCP::_get_http_data(uint8_t *p_buffer, int p_bytes, int &r_received) {
if (blocking) {
// We can't use StreamPeer.get_data, since when reaching EOF we will get an
// error without knowing how many bytes we received.
Error err = ERR_FILE_EOF;
int read = 0;
int left = p_bytes;
r_received = 0;
while (left > 0) {
err = connection->get_partial_data(p_buffer + r_received, left, read);
if (err == OK) {
r_received += read;
} else if (err == ERR_FILE_EOF) {
r_received += read;
return err;
} else {
return err;
}
left -= read;
}
return err;
} else {
return connection->get_partial_data(p_buffer, p_bytes, r_received);
}
}
void HTTPClientTCP::set_read_chunk_size(int p_size) {
ERR_FAIL_COND(p_size < 256 || p_size > (1 << 24));
read_chunk_size = p_size;
}
int HTTPClientTCP::get_read_chunk_size() const {
return read_chunk_size;
}
HTTPClientTCP::HTTPClientTCP() {
tcp_connection.instantiate();
}
HTTPClient *(*HTTPClient::_create)() = HTTPClientTCP::_create_func;
#endif // #ifndef JAVASCRIPT_ENABLED

74
platform/javascript/http_client.h.inc → core/io/http_client_tcp.h
View file

@ -1,5 +1,5 @@
/*************************************************************************/
/* http_client.h.inc */
/* http_client_tcp.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
@ -28,23 +28,65 @@
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
// HTTPClient's additional private members in the javascript platform
#ifndef HTTP_CLIENT_TCP_H
#define HTTP_CLIENT_TCP_H
static void _parse_headers(int p_len, const char **p_headers, void *p_ref);
#include "http_client.h"
int js_id = 0;
// 64 KiB by default (favors fast download speeds at the cost of memory usage).
int read_limit = 65536;
Status status = STATUS_DISCONNECTED;
class HTTPClientTCP : public HTTPClient {
private:
Status status = STATUS_DISCONNECTED;
IP::ResolverID resolving = IP::RESOLVER_INVALID_ID;
int conn_port = -1;
String conn_host;
bool ssl = false;
bool ssl_verify_host = false;
bool blocking = false;
bool handshaking = false;
bool head_request = false;
String host;
int port = -1;
bool use_tls = false;
Vector<uint8_t> response_str;
int polled_response_code = 0;
Vector<String> response_headers;
Vector<uint8_t> response_buffer;
bool chunked = false;
Vector<uint8_t> chunk;
int chunk_left = 0;
bool chunk_trailer_part = false;
int body_size = -1;
int body_left = 0;
bool read_until_eof = false;
#ifdef DEBUG_ENABLED
uint64_t last_polling_frame = 0;
#endif
Ref<StreamPeerTCP> tcp_connection;
Ref<StreamPeer> connection;
int response_num = 0;
Vector<String> response_headers;
// 64 KiB by default (favors fast download speeds at the cost of memory usage).
int read_chunk_size = 65536;
Error _get_http_data(uint8_t *p_buffer, int p_bytes, int &r_received);
public:
static HTTPClient *_create_func();
Error request(Method p_method, const String &p_url, const Vector<String> &p_headers, const uint8_t *p_body, int p_body_size) override;
Error connect_to_host(const String &p_host, int p_port = -1, bool p_ssl = false, bool p_verify_host = true) override;
void set_connection(const Ref<StreamPeer> &p_connection) override;
Ref<StreamPeer> get_connection() const override;
void close() override;
Status get_status() const override;
bool has_response() const override;
bool is_response_chunked() const override;
int get_response_code() const override;
Error get_response_headers(List<String> *r_response) override;
int get_response_body_length() const override;
PackedByteArray read_response_body_chunk() override;
void set_blocking_mode(bool p_enable) override;
bool is_blocking_mode_enabled() const override;
void set_read_chunk_size(int p_size) override;
int get_read_chunk_size() const override;
Error poll() override;
HTTPClientTCP();
};
#endif // HTTP_CLIENT_TCP_H

16
core/register_core_types.cpp
View file

@ -153,14 +153,20 @@ void register_core_types() {
ClassDB::register_class<InputEventPanGesture>();
ClassDB::register_class<InputEventMIDI>();
// Network
ClassDB::register_virtual_class<IP>();
ClassDB::register_virtual_class<StreamPeer>();
ClassDB::register_class<StreamPeerBuffer>();
ClassDB::register_class<StreamPeerTCP>();
ClassDB::register_class<TCPServer>();
ClassDB::register_virtual_class<PacketPeer>();
ClassDB::register_class<PacketPeerStream>();
ClassDB::register_class<PacketPeerUDP>();
ClassDB::register_class<UDPServer>();
ClassDB::register_custom_instance_class<PacketPeerDTLS>();
ClassDB::register_custom_instance_class<DTLSServer>();
ClassDB::register_custom_instance_class<HTTPClient>();
// Crypto
ClassDB::register_class<HashingContext>();
@ -170,22 +176,20 @@ void register_core_types() {
ClassDB::register_custom_instance_class<HMACContext>();
ClassDB::register_custom_instance_class<Crypto>();
ClassDB::register_custom_instance_class<StreamPeerSSL>();
ClassDB::register_custom_instance_class<PacketPeerDTLS>();
ClassDB::register_custom_instance_class<DTLSServer>();
resource_format_saver_crypto.instantiate();
ResourceSaver::add_resource_format_saver(resource_format_saver_crypto);
resource_format_loader_crypto.instantiate();
ResourceLoader::add_resource_format_loader(resource_format_loader_crypto);
ClassDB::register_virtual_class<IP>();
ClassDB::register_virtual_class<PacketPeer>();
ClassDB::register_class<PacketPeerStream>();
ClassDB::register_virtual_class<NetworkedMultiplayerPeer>();
ClassDB::register_class<MultiplayerAPI>();
ClassDB::register_class<MainLoop>();
ClassDB::register_class<Translation>();
ClassDB::register_class<OptimizedTranslation>();
ClassDB::register_class<UndoRedo>();
ClassDB::register_class<HTTPClient>();
ClassDB::register_class<TriangleMesh>();
ClassDB::register_class<ResourceFormatLoader>();

86
platform/javascript/http_client_javascript.cpp
View file

@ -28,45 +28,19 @@
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "core/io/http_client.h"
#include "http_client_javascript.h"
#ifdef __cplusplus
extern "C" {
#endif
#include "stddef.h"
typedef enum {
GODOT_JS_FETCH_STATE_REQUESTING = 0,
GODOT_JS_FETCH_STATE_BODY = 1,
GODOT_JS_FETCH_STATE_DONE = 2,
GODOT_JS_FETCH_STATE_ERROR = -1,
} godot_js_fetch_state_t;
extern int godot_js_fetch_create(const char *p_method, const char *p_url, const char **p_headers, int p_headers_len, const uint8_t *p_body, int p_body_len);
extern int godot_js_fetch_read_headers(int p_id, void (*parse_callback)(int p_size, const char **p_headers, void *p_ref), void *p_ref);
extern int godot_js_fetch_read_chunk(int p_id, uint8_t *p_buf, int p_buf_size);
extern void godot_js_fetch_free(int p_id);
extern godot_js_fetch_state_t godot_js_fetch_state_get(int p_id);
extern int godot_js_fetch_body_length_get(int p_id);
extern int godot_js_fetch_http_status_get(int p_id);
extern int godot_js_fetch_is_chunked(int p_id);
#ifdef __cplusplus
}
#endif
void HTTPClient::_parse_headers(int p_len, const char **p_headers, void *p_ref) {
HTTPClient *client = static_cast<HTTPClient *>(p_ref);
void HTTPClientJavaScript::_parse_headers(int p_len, const char **p_headers, void *p_ref) {
HTTPClientJavaScript *client = static_cast<HTTPClientJavaScript *>(p_ref);
for (int i = 0; i < p_len; i++) {
client->response_headers.push_back(String::utf8(p_headers[i]));
}
}
Error HTTPClient::connect_to_host(const String &p_host, int p_port, bool p_ssl, bool p_verify_host) {
Error HTTPClientJavaScript::connect_to_host(const String &p_host, int p_port, bool p_ssl, bool p_verify_host) {
close();
if (p_ssl && !p_verify_host) {
WARN_PRINT("Disabling HTTPClient's host verification is not supported for the HTML5 platform, host will be verified");
WARN_PRINT("Disabling HTTPClientJavaScript's host verification is not supported for the HTML5 platform, host will be verified");
}
port = p_port;
@ -97,15 +71,15 @@ Error HTTPClient::connect_to_host(const String &p_host, int p_port, bool p_ssl,
return OK;
}
void HTTPClient::set_connection(const Ref<StreamPeer> &p_connection) {
ERR_FAIL_MSG("Accessing an HTTPClient's StreamPeer is not supported for the HTML5 platform.");
void HTTPClientJavaScript::set_connection(const Ref<StreamPeer> &p_connection) {
ERR_FAIL_MSG("Accessing an HTTPClientJavaScript's StreamPeer is not supported for the HTML5 platform.");
}
Ref<StreamPeer> HTTPClient::get_connection() const {
ERR_FAIL_V_MSG(REF(), "Accessing an HTTPClient's StreamPeer is not supported for the HTML5 platform.");
Ref<StreamPeer> HTTPClientJavaScript::get_connection() const {
ERR_FAIL_V_MSG(REF(), "Accessing an HTTPClientJavaScript's StreamPeer is not supported for the HTML5 platform.");
}
Error HTTPClient::request(Method p_method, const String &p_url, const Vector<String> &p_headers, const uint8_t *p_body, int p_body_len) {
Error HTTPClientJavaScript::request(Method p_method, const String &p_url, const Vector<String> &p_headers, const uint8_t *p_body, int p_body_len) {
ERR_FAIL_INDEX_V(p_method, METHOD_MAX, ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V_MSG(p_method == METHOD_TRACE || p_method == METHOD_CONNECT, ERR_UNAVAILABLE, "HTTP methods TRACE and CONNECT are not supported for the HTML5 platform.");
ERR_FAIL_COND_V(status != STATUS_CONNECTED, ERR_INVALID_PARAMETER);
@ -128,7 +102,7 @@ Error HTTPClient::request(Method p_method, const String &p_url, const Vector<Str
return OK;
}
void HTTPClient::close() {
void HTTPClientJavaScript::close() {
host = "";
port = -1;
use_tls = false;
@ -142,23 +116,23 @@ void HTTPClient::close() {
}
}
HTTPClient::Status HTTPClient::get_status() const {
HTTPClientJavaScript::Status HTTPClientJavaScript::get_status() const {
return status;
}
bool HTTPClient::has_response() const {
bool HTTPClientJavaScript::has_response() const {
return response_headers.size() > 0;
}
bool HTTPClient::is_response_chunked() const {
bool HTTPClientJavaScript::is_response_chunked() const {
return godot_js_fetch_is_chunked(js_id);
}
int HTTPClient::get_response_code() const {
int HTTPClientJavaScript::get_response_code() const {
return polled_response_code;
}
Error HTTPClient::get_response_headers(List<String> *r_response) {
Error HTTPClientJavaScript::get_response_headers(List<String> *r_response) {
if (!response_headers.size()) {
return ERR_INVALID_PARAMETER;
}
@ -169,11 +143,11 @@ Error HTTPClient::get_response_headers(List<String> *r_response) {
return OK;
}
int HTTPClient::get_response_body_length() const {
int HTTPClientJavaScript::get_response_body_length() const {
return godot_js_fetch_body_length_get(js_id);
}
PackedByteArray HTTPClient::read_response_body_chunk() {
PackedByteArray HTTPClientJavaScript::read_response_body_chunk() {
ERR_FAIL_COND_V(status != STATUS_BODY, PackedByteArray());
if (response_buffer.size() != read_limit) {
@ -198,23 +172,23 @@ PackedByteArray HTTPClient::read_response_body_chunk() {
return chunk;
}
void HTTPClient::set_blocking_mode(bool p_enable) {
ERR_FAIL_COND_MSG(p_enable, "HTTPClient blocking mode is not supported for the HTML5 platform.");
void HTTPClientJavaScript::set_blocking_mode(bool p_enable) {
ERR_FAIL_COND_MSG(p_enable, "HTTPClientJavaScript blocking mode is not supported for the HTML5 platform.");
}
bool HTTPClient::is_blocking_mode_enabled() const {
bool HTTPClientJavaScript::is_blocking_mode_enabled() const {
return false;
}
void HTTPClient::set_read_chunk_size(int p_size) {
void HTTPClientJavaScript::set_read_chunk_size(int p_size) {
read_limit = p_size;
}
int HTTPClient::get_read_chunk_size() const {
int HTTPClientJavaScript::get_read_chunk_size() const {
return read_limit;
}
Error HTTPClient::poll() {
Error HTTPClientJavaScript::poll() {
switch (status) {
case STATUS_DISCONNECTED:
return ERR_UNCONFIGURED;
@ -248,7 +222,7 @@ Error HTTPClient::poll() {
#ifdef DEBUG_ENABLED
// forcing synchronous requests is not possible on the web
if (last_polling_frame == Engine::get_singleton()->get_process_frames()) {
WARN_PRINT("HTTPClient polled multiple times in one frame, "
WARN_PRINT("HTTPClientJavaScript polled multiple times in one frame, "
"but request cannot progress more than once per "
"frame on the HTML5 platform.");
}
@ -279,9 +253,15 @@ Error HTTPClient::poll() {
return OK;
}
HTTPClient::HTTPClient() {
HTTPClient *HTTPClientJavaScript::_create_func() {
return memnew(HTTPClientJavaScript);
}
HTTPClient::~HTTPClient() {
HTTPClient *(*HTTPClient::_create)() = HTTPClientJavaScript::_create_func;
HTTPClientJavaScript::HTTPClientJavaScript() {
}
HTTPClientJavaScript::~HTTPClientJavaScript() {
close();
}

108
platform/javascript/http_client_javascript.h Normal file
View file

@ -0,0 +1,108 @@
/*************************************************************************/
/* http_client_javascript.h */
/*************************************************************************/
/* 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. */
/*************************************************************************/
#ifndef HTTP_CLIENT_JAVASCRIPT_H
#define HTTP_CLIENT_JAVASCRIPT_H
#include "core/io/http_client.h"
#ifdef __cplusplus
extern "C" {
#endif
#include "stddef.h"
typedef enum {
GODOT_JS_FETCH_STATE_REQUESTING = 0,
GODOT_JS_FETCH_STATE_BODY = 1,
GODOT_JS_FETCH_STATE_DONE = 2,
GODOT_JS_FETCH_STATE_ERROR = -1,
} godot_js_fetch_state_t;
extern int godot_js_fetch_create(const char *p_method, const char *p_url, const char **p_headers, int p_headers_len, const uint8_t *p_body, int p_body_len);
extern int godot_js_fetch_read_headers(int p_id, void (*parse_callback)(int p_size, const char **p_headers, void *p_ref), void *p_ref);
extern int godot_js_fetch_read_chunk(int p_id, uint8_t *p_buf, int p_buf_size);
extern void godot_js_fetch_free(int p_id);
extern godot_js_fetch_state_t godot_js_fetch_state_get(int p_id);
extern int godot_js_fetch_body_length_get(int p_id);
extern int godot_js_fetch_http_status_get(int p_id);
extern int godot_js_fetch_is_chunked(int p_id);
#ifdef __cplusplus
}
#endif
class HTTPClientJavaScript : public HTTPClient {
private:
int js_id = 0;
Status status = STATUS_DISCONNECTED;
// 64 KiB by default (favors fast download speeds at the cost of memory usage).
int read_limit = 65536;
String host;
int port = -1;
bool use_tls = false;
int polled_response_code = 0;
Vector<String> response_headers;
Vector<uint8_t> response_buffer;
#ifdef DEBUG_ENABLED
uint64_t last_polling_frame = 0;
#endif
static void _parse_headers(int p_len, const char **p_headers, void *p_ref);
public:
static HTTPClient *_create_func();
Error request(Method p_method, const String &p_url, const Vector<String> &p_headers, const uint8_t *p_body, int p_body_size) override;
Error connect_to_host(const String &p_host, int p_port = -1, bool p_ssl = false, bool p_verify_host = true) override;
void set_connection(const Ref<StreamPeer> &p_connection) override;
Ref<StreamPeer> get_connection() const override;
void close() override;
Status get_status() const override;
bool has_response() const override;
bool is_response_chunked() const override;
int get_response_code() const override;
Error get_response_headers(List<String> *r_response) override;
int get_response_body_length() const override;
PackedByteArray read_response_body_chunk() override;
void set_blocking_mode(bool p_enable) override;
bool is_blocking_mode_enabled() const override;
void set_read_chunk_size(int p_size) override;
int get_read_chunk_size() const override;
Error poll() override;
HTTPClientJavaScript();
~HTTPClientJavaScript();
};
#endif // HTTP_CLIENT_JAVASCRIPT_H

2
scene/main/http_request.cpp
View file

@ -628,7 +628,7 @@ void HTTPRequest::_bind_methods() {
}
HTTPRequest::HTTPRequest() {
client.instantiate();
client = Ref<HTTPClient>(HTTPClient::create());
timer = memnew(Timer);
timer->set_one_shot(true);
timer->connect("timeout", callable_mp(this, &HTTPRequest::_timeout));