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f4713d235a
Body length cannot be reliably retrieved from the web. Reading the "content-length" value will return a meaningless value when the response is compressed, as reading will return uncompressed chunks in any case, resulting in a mismatch between the detected body size and the actual size returned by repeatedly calling read_response_body_chunk. Additionally, while "content-length" is considered a safe CORS header, "content-encoding" is not, so using the "content-encoding" to decide if "content-length" is meaningful is not an option either. We simply must accept the fact that browsers are awful when it comes to networking APIs.
108 lines
4.6 KiB
C++
108 lines
4.6 KiB
C++
/**************************************************************************/
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/* http_client_web.h */
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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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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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#ifndef HTTP_CLIENT_WEB_H
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#define HTTP_CLIENT_WEB_H
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#include "core/io/http_client.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stddef.h>
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typedef enum {
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GODOT_JS_FETCH_STATE_REQUESTING = 0,
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GODOT_JS_FETCH_STATE_BODY = 1,
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GODOT_JS_FETCH_STATE_DONE = 2,
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GODOT_JS_FETCH_STATE_ERROR = -1,
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} godot_js_fetch_state_t;
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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);
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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);
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extern int godot_js_fetch_read_chunk(int p_id, uint8_t *p_buf, int p_buf_size);
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extern void godot_js_fetch_free(int p_id);
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extern godot_js_fetch_state_t godot_js_fetch_state_get(int p_id);
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extern int godot_js_fetch_http_status_get(int p_id);
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extern int godot_js_fetch_is_chunked(int p_id);
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#ifdef __cplusplus
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}
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#endif
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class HTTPClientWeb : public HTTPClient {
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private:
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int js_id = 0;
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Status status = STATUS_DISCONNECTED;
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// 64 KiB by default (favors fast download speeds at the cost of memory usage).
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int read_limit = 65536;
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String host;
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int port = -1;
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bool use_tls = false;
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int polled_response_code = 0;
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Vector<String> response_headers;
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Vector<uint8_t> response_buffer;
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#ifdef DEBUG_ENABLED
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uint64_t last_polling_frame = 0;
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#endif
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static void _parse_headers(int p_len, const char **p_headers, void *p_ref);
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public:
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static HTTPClient *_create_func();
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Error request(Method p_method, const String &p_url, const Vector<String> &p_headers, const uint8_t *p_body, int p_body_size) override;
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Error connect_to_host(const String &p_host, int p_port = -1, Ref<TLSOptions> p_tls_options = Ref<TLSOptions>()) override;
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void set_connection(const Ref<StreamPeer> &p_connection) override;
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Ref<StreamPeer> get_connection() const override;
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void close() override;
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Status get_status() const override;
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bool has_response() const override;
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bool is_response_chunked() const override;
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int get_response_code() const override;
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Error get_response_headers(List<String> *r_response) override;
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int64_t get_response_body_length() const override;
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PackedByteArray read_response_body_chunk() override;
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void set_blocking_mode(bool p_enable) override;
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bool is_blocking_mode_enabled() const override;
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void set_read_chunk_size(int p_size) override;
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int get_read_chunk_size() const override;
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Error poll() override;
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HTTPClientWeb();
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~HTTPClientWeb();
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};
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#endif // HTTP_CLIENT_WEB_H
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