64523709bf
This requires the use of WinHTTP (for Windows) or libcurl (for all others except Emscripten). Emscripten does not support http(s) calls currently. On Linux it requires ca-certificates to be installed, so the HTTPS certificate can be validated. It is really likely this is installed on any modern machine, as most connections these days are HTTPS. (On MacOS and Windows the certificate store is filled by default) Reminder: in case the http(s):// connection cannot be established, OpenTTD falls back to a custom TCP-based connection to fetch the content from the content-service. Emscripten will always do this.
70 lines
2.7 KiB
C++
70 lines
2.7 KiB
C++
/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD 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.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file config.cpp Configuration of the connection strings for network stuff using environment variables.
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*/
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#include "../../stdafx.h"
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#include <cstdlib>
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#include "../../string_func.h"
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#include "../../safeguards.h"
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/**
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* Get the environment variable using std::getenv and when it is an empty string (or nullptr), return a fallback value instead.
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* @param variable The environment variable to read from.
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* @param fallback The fallback in case the environment variable is not set.
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* @return The environment value, or when that does not exist the given fallback value.
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*/
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static const char *GetEnv(const char *variable, const char *fallback)
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{
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const char *value = std::getenv(variable);
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return StrEmpty(value) ? fallback : value;
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}
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/**
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* Get the connection string for the game coordinator from the environment variable OTTD_COORDINATOR_CS,
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* or when it has not been set a hard coded default DNS hostname of the production server.
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* @return The game coordinator's connection string.
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*/
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const char *NetworkCoordinatorConnectionString()
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{
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return GetEnv("OTTD_COORDINATOR_CS", "coordinator.openttd.org");
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}
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/**
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* Get the connection string for the STUN server from the environment variable OTTD_STUN_CS,
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* or when it has not been set a hard coded default DNS hostname of the production server.
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* @return The STUN server's connection string.
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*/
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const char *NetworkStunConnectionString()
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{
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return GetEnv("OTTD_STUN_CS", "stun.openttd.org");
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}
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/**
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* Get the connection string for the content server from the environment variable OTTD_CONTENT_SERVER_CS,
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* or when it has not been set a hard coded default DNS hostname of the production server.
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* @return The content server's connection string.
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*/
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const char *NetworkContentServerConnectionString()
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{
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return GetEnv("OTTD_CONTENT_SERVER_CS", "content.openttd.org");
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}
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/**
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* Get the URI string for the content mirror from the environment variable OTTD_CONTENT_MIRROR_URI,
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* or when it has not been set a hard coded URI of the production server.
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* @return The content mirror's URI string.
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*/
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const char *NetworkContentMirrorUriString()
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{
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return GetEnv("OTTD_CONTENT_MIRROR_URI", "https://binaries.openttd.org/bananas");
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}
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