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Feature: opt-in survey when exiting a game

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On first start-up, the game will ask if you want to participate
in our automated survey. You have to opt-in, and can easily opt-out
(via the Options) at any time.

When opt-in, whenever you exit a game, a JSON blob will be send
to the survey server hosted by OpenTTD. This JSON blob contains
information that gives a global picture of the game just played:
- What settings were used
- How many humans vs AIs
- How long the game has been played
- Basic information about the OS / CPU

All this information is kept very generic, so there is no
chance we send private information to our survey server.
Nothing in the JSON blob could identify you as a person; it
mostly tells about the game played. At any time you can see
what the JSON blob includes, by pressing the "Preview Survey
Results" button in-game.
This commit is contained in:
Patric Stout
2023-04-25 19:43:45 +02:00
committed by Patric Stout
parent 021c45c4f6
commit 7634553d22
54 changed files with 1018 additions and 53 deletions
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4
src/network/core/config.h
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@@ -16,6 +16,7 @@ const char *NetworkCoordinatorConnectionString();
const char *NetworkStunConnectionString();
const char *NetworkContentServerConnectionString();
const char *NetworkContentMirrorUriString();
const char *NetworkSurveyUriString();
static const uint16 NETWORK_COORDINATOR_SERVER_PORT = 3976; ///< The default port of the Game Coordinator server (TCP)
static const uint16 NETWORK_STUN_SERVER_PORT = 3975; ///< The default port of the STUN server (TCP)
@@ -26,6 +27,8 @@ static const uint16 NETWORK_ADMIN_PORT = 3977; ///< The d
static const uint16 NETWORK_DEFAULT_DEBUGLOG_PORT = 3982; ///< The default port debug-log is sent to (TCP)
static const uint16 UDP_MTU = 1460; ///< Number of bytes we can pack in a single UDP packet
static const std::string NETWORK_SURVEY_DETAILS_LINK = "https://survey.openttd.org/participate"; ///< Link with more details & privacy statement of the survey.
/*
* Technically a TCP packet could become 64kiB, however the high bit is kept so it becomes possible in the future
* to go to (significantly) larger packets if needed. This would entail a strategy such as employed for UTF-8.
@@ -46,6 +49,7 @@ static const uint16 COMPAT_MTU = 1460; ///< Numbe
static const byte NETWORK_GAME_ADMIN_VERSION = 3; ///< What version of the admin network do we use?
static const byte NETWORK_GAME_INFO_VERSION = 6; ///< What version of game-info do we use?
static const byte NETWORK_COORDINATOR_VERSION = 6; ///< What version of game-coordinator-protocol do we use?
static const byte NETWORK_SURVEY_VERSION = 1; ///< What version of the survey do we use?
static const uint NETWORK_NAME_LENGTH = 80; ///< The maximum length of the server name and map name, in bytes including '\0'
static const uint NETWORK_COMPANY_NAME_LENGTH = 128; ///< The maximum length of the company name, in bytes including '\0'