forked from Mirrorlandia_minetest/minetest
115 lines
3.5 KiB
C++
115 lines
3.5 KiB
C++
/*
|
|
Minetest
|
|
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License along
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <vector>
|
|
#include "util/string.h"
|
|
#include "config.h"
|
|
|
|
// Can be used in place of "caller" in asynchronous transfers to discard result
|
|
// (used as default value of "caller")
|
|
#define HTTPFETCH_DISCARD 0
|
|
#define HTTPFETCH_SYNC 1
|
|
|
|
struct HTTPFetchRequest
|
|
{
|
|
std::string url = "";
|
|
|
|
// Identifies the caller (for asynchronous requests)
|
|
// Ignored by httpfetch_sync
|
|
unsigned long caller = HTTPFETCH_DISCARD;
|
|
|
|
// Some number that identifies the request
|
|
// (when the same caller issues multiple httpfetch_async calls)
|
|
unsigned long request_id = 0;
|
|
|
|
// Timeout for the whole transfer, in milliseconds
|
|
long timeout;
|
|
|
|
// Timeout for the connection phase, in milliseconds
|
|
long connect_timeout;
|
|
|
|
// Indicates if this is multipart/form-data or
|
|
// application/x-www-form-urlencoded. POST-only.
|
|
bool multipart = false;
|
|
|
|
// POST fields. Fields are escaped properly.
|
|
// If this is empty a GET request is done instead.
|
|
StringMap post_fields;
|
|
|
|
// Raw POST data, overrides post_fields.
|
|
std::string post_data;
|
|
|
|
// If not empty, should contain entries such as "Accept: text/html"
|
|
std::vector<std::string> extra_headers;
|
|
|
|
// useragent to use
|
|
std::string useragent;
|
|
|
|
HTTPFetchRequest();
|
|
};
|
|
|
|
struct HTTPFetchResult
|
|
{
|
|
bool succeeded = false;
|
|
bool timeout = false;
|
|
long response_code = 0;
|
|
std::string data = "";
|
|
// The caller and request_id from the corresponding HTTPFetchRequest.
|
|
unsigned long caller = HTTPFETCH_DISCARD;
|
|
unsigned long request_id = 0;
|
|
|
|
HTTPFetchResult() = default;
|
|
|
|
HTTPFetchResult(const HTTPFetchRequest &fetch_request) :
|
|
caller(fetch_request.caller), request_id(fetch_request.request_id)
|
|
{
|
|
}
|
|
};
|
|
|
|
// Initializes the httpfetch module
|
|
void httpfetch_init(int parallel_limit);
|
|
|
|
// Stops the httpfetch thread and cleans up resources
|
|
void httpfetch_cleanup();
|
|
|
|
// Starts an asynchronous HTTP fetch request
|
|
void httpfetch_async(const HTTPFetchRequest &fetch_request);
|
|
|
|
// If any fetch for the given caller ID is complete, removes it from the
|
|
// result queue, sets the fetch result and returns true. Otherwise returns false.
|
|
bool httpfetch_async_get(unsigned long caller, HTTPFetchResult &fetch_result);
|
|
|
|
// Allocates a caller ID for httpfetch_async
|
|
// Not required if you want to set caller = HTTPFETCH_DISCARD
|
|
unsigned long httpfetch_caller_alloc();
|
|
|
|
// Allocates a non-predictable caller ID for httpfetch_async
|
|
unsigned long httpfetch_caller_alloc_secure();
|
|
|
|
// Frees a caller ID allocated with httpfetch_caller_alloc
|
|
// Note: This can be expensive, because the httpfetch thread is told
|
|
// to stop any ongoing fetches for the given caller.
|
|
void httpfetch_caller_free(unsigned long caller);
|
|
|
|
// Performs a synchronous HTTP request. This blocks and therefore should
|
|
// only be used from background threads.
|
|
void httpfetch_sync(const HTTPFetchRequest &fetch_request, HTTPFetchResult &fetch_result);
|