How to get data from CS:GO server

[Hu3bl]

This issue should show possible solutions how to get the data from the CS:GO server in order to process and save them into a database.

[Hu3bl]

First opportunity is using the logaddress command on the server. The server sends the log to the specified address via udp. The bot has to provide an udp server to receive the logs.
However, this method requires rcon access to the server to write the address of the statsbot to the logaddress list.
With the command mp_logdetail 3 the server sends every damage taken by any player on the server to the specified logadress including teamdamage and worlddamage.

The received logs needs to be parsed to extract and process the information.

A log includes position data for every event happend. A event could be one player throw a smoke or hit another player. It does not provide continous position data of every player or grenade.

[Hu3bl]

The second opportunity is using the Game State Integration. https://developer.valvesoftware.com/wiki/Counter-Strike:_Global_Offensive_Game_State_Integration

As far as I know this requires at least one csgo client connected to the server. Game state integration is used by Dreamhack or MLG on the casters csgo client to control the displayed stats for every player like dead or alive, weapon, money, etc. Additionally, it gives information about the round like bomb is exploded which was used on Dreamhack in Cluj to control the pyro on stage.

https://www.reddit.com/r/GlobalOffensive/comments/3w26kq/game_state_integration_quick_and_dirty/ explains which data is provided. Position data is missing.

[Hu3bl]

Third opportunity is not clear to me how it works. It is shown in https://www.youtube.com/watch?v=JlXucXpNC2o.

A user on reddit assumed that they simulate a csgo client, connect to a gotv relay and parse the udp packets received by the server. In this data should be everything available including positions of every player without a special event like hitting another player.

However, I'm not sure if this is the way to get the data. It could be possible to connect with a fake client, but parsing the udp packets could be hard. Further it is maybe the same way like cheats get the position data by parsing the network traffic.
Using this method results in a dependency on valve's protocol, which is not public documented and probably never will be.