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godot/platform/javascript/http_client_javascript.cpp

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/*************************************************************************/
/* http_client_javascript.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2017 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 "http_request.h"
#include "io/http_client.h"
Error HTTPClient::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");
}
host = p_host;
if (host.begins_with("http://")) {
host.replace_first("http://", "");
} else if (host.begins_with("https://")) {
host.replace_first("https://", "");
}
status = host.is_valid_ip_address() ? STATUS_CONNECTING : STATUS_RESOLVING;
port = p_port;
use_tls = p_ssl;
return OK;
}
void HTTPClient::set_connection(const Ref<StreamPeer> &p_connection) {
ERR_EXPLAIN("Accessing an HTTPClient's StreamPeer is not supported for the HTML5 platform");
ERR_FAIL();
}
Ref<StreamPeer> HTTPClient::get_connection() const {
ERR_EXPLAIN("Accessing an HTTPClient's StreamPeer is not supported for the HTML5 platform");
ERR_FAIL_V(REF());
}
Error HTTPClient::prepare_request(Method p_method, const String &p_url, const Vector<String> &p_headers) {
ERR_FAIL_INDEX_V(p_method, METHOD_MAX, ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V(status != STATUS_CONNECTED, ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V(host.empty(), ERR_UNCONFIGURED);
ERR_FAIL_COND_V(port < 0, ERR_UNCONFIGURED);
static const char *_methods[HTTPClient::METHOD_MAX] = {
"GET",
"HEAD",
"POST",
"PUT",
"DELETE",
"OPTIONS",
"TRACE",
"CONNECT"
};
String url = (use_tls ? "https://" : "http://") + host + ":" + itos(port) + "/" + p_url;
godot_xhr_reset(xhr_id);
godot_xhr_open(xhr_id, _methods[p_method], url.utf8().get_data(),
username.empty() ? NULL : username.utf8().get_data(),
password.empty() ? NULL : password.utf8().get_data());
for (int i = 0; i < p_headers.size(); i++) {
int header_separator = p_headers[i].find(": ");
ERR_FAIL_COND_V(header_separator < 0, ERR_INVALID_PARAMETER);
godot_xhr_set_request_header(xhr_id,
p_headers[i].left(header_separator).utf8().get_data(),
p_headers[i].right(header_separator + 2).utf8().get_data());
}
response_read_offset = 0;
status = STATUS_REQUESTING;
return OK;
}
Error HTTPClient::request_raw(Method p_method, const String &p_url, const Vector<String> &p_headers, const PoolVector<uint8_t> &p_body) {
Error err = prepare_request(p_method, p_url, p_headers);
if (err != OK)
return err;
PoolByteArray::Read read = p_body.read();
godot_xhr_send_data(xhr_id, read.ptr(), p_body.size());
return OK;
}
Error HTTPClient::request(Method p_method, const String &p_url, const Vector<String> &p_headers, const String &p_body) {
Error err = prepare_request(p_method, p_url, p_headers);
if (err != OK)
return err;
godot_xhr_send_string(xhr_id, p_body.utf8().get_data());
return OK;
}
void HTTPClient::close() {
host = "";
port = -1;
use_tls = false;
status = STATUS_DISCONNECTED;
polled_response.resize(0);
polled_response_code = 0;
polled_response_header = String();
godot_xhr_reset(xhr_id);
}
HTTPClient::Status HTTPClient::get_status() const {
return status;
}
bool HTTPClient::has_response() const {
return !polled_response_header.empty();
}
bool HTTPClient::is_response_chunked() const {
// TODO evaluate using moz-chunked-arraybuffer, fetch & ReadableStream
return false;
}
int HTTPClient::get_response_code() const {
return polled_response_code;
}
Error HTTPClient::get_response_headers(List<String> *r_response) {
if (!polled_response_header.size())
return ERR_INVALID_PARAMETER;
Vector<String> header_lines = polled_response_header.split("\r\n", false);
for (int i = 0; i < header_lines.size(); ++i) {
r_response->push_back(header_lines[i]);
}
polled_response_header = String();
return OK;
}
int HTTPClient::get_response_body_length() const {
return polled_response.size();
}
PoolByteArray HTTPClient::read_response_body_chunk() {
ERR_FAIL_COND_V(status != STATUS_BODY, PoolByteArray());
int to_read = MIN(read_limit, polled_response.size() - response_read_offset);
PoolByteArray chunk;
chunk.resize(to_read);
PoolByteArray::Write write = chunk.write();
PoolByteArray::Read read = polled_response.read();
memcpy(write.ptr(), read.ptr() + response_read_offset, to_read);
write = PoolByteArray::Write();
read = PoolByteArray::Read();
response_read_offset += to_read;
if (response_read_offset == polled_response.size()) {
status = STATUS_CONNECTED;
polled_response.resize(0);
polled_response_code = 0;
polled_response_header = String();
godot_xhr_reset(xhr_id);
}
return chunk;
}
void HTTPClient::set_blocking_mode(bool p_enable) {
ERR_EXPLAIN("HTTPClient blocking mode is not supported for the HTML5 platform");
ERR_FAIL_COND(p_enable);
}
bool HTTPClient::is_blocking_mode_enabled() const {
return false;
}
void HTTPClient::set_read_chunk_size(int p_size) {
read_limit = p_size;
}
Error HTTPClient::poll() {
switch (status) {
case STATUS_DISCONNECTED:
return ERR_UNCONFIGURED;
case STATUS_RESOLVING:
status = STATUS_CONNECTING;
return OK;
case STATUS_CONNECTING:
status = STATUS_CONNECTED;
return OK;
case STATUS_CONNECTED:
case STATUS_BODY:
return OK;
case STATUS_CONNECTION_ERROR:
return ERR_CONNECTION_ERROR;
case STATUS_REQUESTING:
polled_response_code = godot_xhr_get_status(xhr_id);
int response_length = godot_xhr_get_response_length(xhr_id);
if (response_length == 0) {
godot_xhr_ready_state_t ready_state = godot_xhr_get_ready_state(xhr_id);
if (ready_state == XHR_READY_STATE_HEADERS_RECEIVED || ready_state == XHR_READY_STATE_LOADING) {
return OK;
} else {
status = STATUS_CONNECTION_ERROR;
return ERR_CONNECTION_ERROR;
}
}
status = STATUS_BODY;
PoolByteArray bytes;
int len = godot_xhr_get_response_headers_length(xhr_id);
bytes.resize(len);
PoolByteArray::Write write = bytes.write();
godot_xhr_get_response_headers(xhr_id, reinterpret_cast<char *>(write.ptr()), len);
write = PoolByteArray::Write();
PoolByteArray::Read read = bytes.read();
polled_response_header = String::utf8(reinterpret_cast<const char *>(read.ptr()));
read = PoolByteArray::Read();
polled_response.resize(response_length);
write = polled_response.write();
godot_xhr_get_response(xhr_id, write.ptr(), response_length);
write = PoolByteArray::Write();
break;
}
return OK;
}
HTTPClient::HTTPClient() {
xhr_id = godot_xhr_new();
read_limit = 4096;
status = STATUS_DISCONNECTED;
port = -1;
use_tls = false;
polled_response_code = 0;
}
HTTPClient::~HTTPClient() {
godot_xhr_free(xhr_id);
}
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