298 lines
9 KiB
C++
298 lines
9 KiB
C++
/*************************************************************************/
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/* http_client_javascript.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) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 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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#include "core/io/http_client.h"
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#include "http_request.h"
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Error HTTPClient::connect_to_host(const String &p_host, int p_port, bool p_ssl, bool p_verify_host) {
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close();
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if (p_ssl && !p_verify_host) {
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WARN_PRINT("Disabling HTTPClient's host verification is not supported for the HTML5 platform, host will be verified");
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}
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port = p_port;
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use_tls = p_ssl;
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host = p_host;
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String host_lower = host.to_lower();
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if (host_lower.begins_with("http://")) {
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host = host.substr(7, host.length() - 7);
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} else if (host_lower.begins_with("https://")) {
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use_tls = true;
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host = host.substr(8, host.length() - 8);
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}
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ERR_FAIL_COND_V(host.length() < HOST_MIN_LEN, ERR_INVALID_PARAMETER);
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if (port < 0) {
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if (use_tls) {
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port = PORT_HTTPS;
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} else {
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port = PORT_HTTP;
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}
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}
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status = host.is_valid_ip_address() ? STATUS_CONNECTING : STATUS_RESOLVING;
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return OK;
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}
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void HTTPClient::set_connection(const Ref<StreamPeer> &p_connection) {
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ERR_FAIL_MSG("Accessing an HTTPClient's StreamPeer is not supported for the HTML5 platform.");
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}
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Ref<StreamPeer> HTTPClient::get_connection() const {
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ERR_FAIL_V_MSG(REF(), "Accessing an HTTPClient's StreamPeer is not supported for the HTML5 platform.");
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}
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Error HTTPClient::prepare_request(Method p_method, const String &p_url, const Vector<String> &p_headers) {
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ERR_FAIL_INDEX_V(p_method, METHOD_MAX, ERR_INVALID_PARAMETER);
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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.");
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ERR_FAIL_COND_V(status != STATUS_CONNECTED, ERR_INVALID_PARAMETER);
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ERR_FAIL_COND_V(host.empty(), ERR_UNCONFIGURED);
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ERR_FAIL_COND_V(port < 0, ERR_UNCONFIGURED);
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ERR_FAIL_COND_V(!p_url.begins_with("/"), ERR_INVALID_PARAMETER);
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String url = (use_tls ? "https://" : "http://") + host + ":" + itos(port) + p_url;
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godot_xhr_reset(xhr_id);
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godot_xhr_open(xhr_id, _methods[p_method], url.utf8().get_data(),
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username.empty() ? NULL : username.utf8().get_data(),
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password.empty() ? NULL : password.utf8().get_data());
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for (int i = 0; i < p_headers.size(); i++) {
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int header_separator = p_headers[i].find(": ");
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ERR_FAIL_COND_V(header_separator < 0, ERR_INVALID_PARAMETER);
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godot_xhr_set_request_header(xhr_id,
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p_headers[i].left(header_separator).utf8().get_data(),
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p_headers[i].right(header_separator + 2).utf8().get_data());
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}
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response_read_offset = 0;
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status = STATUS_REQUESTING;
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return OK;
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}
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Error HTTPClient::request_raw(Method p_method, const String &p_url, const Vector<String> &p_headers, const Vector<uint8_t> &p_body) {
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Error err = prepare_request(p_method, p_url, p_headers);
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if (err != OK)
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return err;
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godot_xhr_send_data(xhr_id, p_body.ptr(), p_body.size());
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return OK;
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}
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Error HTTPClient::request(Method p_method, const String &p_url, const Vector<String> &p_headers, const String &p_body) {
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Error err = prepare_request(p_method, p_url, p_headers);
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if (err != OK)
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return err;
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godot_xhr_send_string(xhr_id, p_body.utf8().get_data());
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return OK;
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}
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void HTTPClient::close() {
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host = "";
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port = -1;
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use_tls = false;
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status = STATUS_DISCONNECTED;
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polled_response.resize(0);
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polled_response_code = 0;
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polled_response_header = String();
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godot_xhr_reset(xhr_id);
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}
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HTTPClient::Status HTTPClient::get_status() const {
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return status;
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}
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bool HTTPClient::has_response() const {
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return !polled_response_header.empty();
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}
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bool HTTPClient::is_response_chunked() const {
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// TODO evaluate using moz-chunked-arraybuffer, fetch & ReadableStream
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return false;
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}
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int HTTPClient::get_response_code() const {
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return polled_response_code;
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}
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Error HTTPClient::get_response_headers(List<String> *r_response) {
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if (polled_response_header.empty())
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return ERR_INVALID_PARAMETER;
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Vector<String> header_lines = polled_response_header.split("\r\n", false);
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for (int i = 0; i < header_lines.size(); ++i) {
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r_response->push_back(header_lines[i]);
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}
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polled_response_header = String();
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return OK;
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}
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int HTTPClient::get_response_body_length() const {
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return polled_response.size();
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}
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PackedByteArray HTTPClient::read_response_body_chunk() {
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ERR_FAIL_COND_V(status != STATUS_BODY, PackedByteArray());
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int to_read = MIN(read_limit, polled_response.size() - response_read_offset);
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PackedByteArray chunk;
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chunk.resize(to_read);
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memcpy(chunk.ptrw(), polled_response.ptr() + response_read_offset, to_read);
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response_read_offset += to_read;
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if (response_read_offset == polled_response.size()) {
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status = STATUS_CONNECTED;
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polled_response.resize(0);
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godot_xhr_reset(xhr_id);
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}
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return chunk;
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}
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void HTTPClient::set_blocking_mode(bool p_enable) {
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ERR_FAIL_COND_MSG(p_enable, "HTTPClient blocking mode is not supported for the HTML5 platform.");
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}
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bool HTTPClient::is_blocking_mode_enabled() const {
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return false;
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}
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void HTTPClient::set_read_chunk_size(int p_size) {
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read_limit = p_size;
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}
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int HTTPClient::get_read_chunk_size() const {
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return read_limit;
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}
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Error HTTPClient::poll() {
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switch (status) {
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case STATUS_DISCONNECTED:
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return ERR_UNCONFIGURED;
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case STATUS_RESOLVING:
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status = STATUS_CONNECTING;
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return OK;
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case STATUS_CONNECTING:
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status = STATUS_CONNECTED;
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return OK;
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case STATUS_CONNECTED:
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case STATUS_BODY:
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return OK;
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case STATUS_CONNECTION_ERROR:
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return ERR_CONNECTION_ERROR;
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case STATUS_REQUESTING: {
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#ifdef DEBUG_ENABLED
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if (!has_polled) {
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has_polled = true;
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} else {
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// forcing synchronous requests is not possible on the web
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if (last_polling_frame == Engine::get_singleton()->get_idle_frames()) {
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WARN_PRINT("HTTPClient polled multiple times in one frame, "
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"but request cannot progress more than once per "
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"frame on the HTML5 platform.");
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}
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}
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last_polling_frame = Engine::get_singleton()->get_idle_frames();
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#endif
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polled_response_code = godot_xhr_get_status(xhr_id);
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if (godot_xhr_get_ready_state(xhr_id) != XHR_READY_STATE_DONE) {
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return OK;
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} else if (!polled_response_code) {
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status = STATUS_CONNECTION_ERROR;
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return ERR_CONNECTION_ERROR;
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}
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status = STATUS_BODY;
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PackedByteArray bytes;
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int len = godot_xhr_get_response_headers_length(xhr_id);
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bytes.resize(len + 1);
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godot_xhr_get_response_headers(xhr_id, reinterpret_cast<char *>(bytes.ptrw()), len);
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bytes.ptrw()[len] = 0;
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polled_response_header = String::utf8(reinterpret_cast<const char *>(bytes.ptr()));
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polled_response.resize(godot_xhr_get_response_length(xhr_id));
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godot_xhr_get_response(xhr_id, polled_response.ptrw(), polled_response.size());
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break;
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}
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default:
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ERR_FAIL_V(ERR_BUG);
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}
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return OK;
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}
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HTTPClient::HTTPClient() {
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xhr_id = godot_xhr_new();
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read_limit = 4096;
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status = STATUS_DISCONNECTED;
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port = -1;
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use_tls = false;
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polled_response_code = 0;
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#ifdef DEBUG_ENABLED
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has_polled = false;
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last_polling_frame = 0;
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#endif
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}
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HTTPClient::~HTTPClient() {
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godot_xhr_free(xhr_id);
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}
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